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THE UNIVERSITY
OF ILLINOIS
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THE

MODELMAKER

FOR THOSE
INTERESTED IN MAKING

WORKING MODELS

Hdited by

3 W. EDMUNDS SPON

VOLUME Ill

SPOON & CHAMBERLAIN
Publishers of Technical Books

(20. 122 LIBERTY STREET NEW YORK, N. ¥Y.

; 1926

ra
4

LECOUVER PRESS CO.
51 Vesey Street
New York, N. Y¥., U. S.A

-_ Electrolyte for Dry Cells,

ae Locomotive, Electric,

Paist. Of Societies,

(ep.

INDEX

Addresses of mae cries, 188.
Aeroplane, 85, 101.

Aeroplane Engine, 104.

Air Compressor, 82.

Air-Cooled Gas Engines, 5, 6.
Alcohol as Fuel, 192.

American Marine Resa eation 61.
American Model Locomotives, 156.

pnteneae Power Boat Records,

Blow Torch, 138.

Boat Races, 111, 149.

Boilers, 9, 30, 168, 191.

Book Notices, 15, 29, 51, 73,
140, 153, 154. 191.

Brigantine ‘‘Breda,”’ 103.

Canadian Model Power Boats,

Chinese Junk, 135.

Clipper Ship ‘‘Lightning,”’ 69.

Clipper Ship “Flying Cloud,” 13,
165, 180.

Clubs’ and Societies, 188.

Contents Model Engineer, 23, 44, 45,
te 74, 78, 79, 93, 109, 116, +53; 174,
9

Contents, Model Railway News, 3. 19,
34, 45, 51,75, 106, 123,°138, 182.

Correspondence, 2, 30, 41, 43, 76, 92,
110, 124, 140, 141, 191, 195.

Crank: -pins for ‘Locomotives, 183.

C..S. M. E. Exhibition, 192.

SEutty Sark, 91,

Design for a Model Launch, 9.
Drilling Holes at an Angle, 107.
Dry Cells Electrolyte, 184.

Electric Car, 172,

151,

110, 116,

193:

134,

' Electric Locomotive, 133.

Electric Locomotive Crane, 122.

184.
English Power Boats Records, 173,°485.

“Flying Cloud,” 13, 134. 165, 180.
Foreword, 2, 18, 34, 50, 66, 82, 99,
at 5 ee Sle 147, 163, 179.

Gas Engines, 5, 6,

V3 78
Gasolene Aero Engine, 6, 104.

Lead Paint, 138.

188.
Locomotive, B. & O. of 1863, 67.
Locomotive Construction Notes, 38.
Locomotive Club, 43.

Locomotive, Crank Pins for, 183.

133.
Locomotive, French, 59.
Locomotive 4” Gauge No. 1900, 164.

Locomotive Races, 14.
genni 1%” Scale Mountain’ Tyfey .
1 ’
Locomotive, sn Scale, 25, 59.
Scale Mikado, 117.

% Syn Scale Pacific, 27, 60.
4 1%” Scale Pacific, gs.

i 9997" 59.

? Steam Tests, 141.

Model Aeroplane, 85, 101.

Aeroplane Baines: 7, 104.

Boilers, 9, 30, 168, 191.

” British S. E. 5A Single Seater

Aeroplane, 85, 101.

”? Chinese Junk, 135.

Electric Locomotive Crane, 122.

” Engineer, 23, 44, 45, 52, 74, 78,
79, 93, 109, 116, 153,.174, 190.

Engineer Societies, 13, 23, 31,
43, 44,45, 61, 63, 74, 83, 92,
110; 111,-139, 141, 149, 168,
184, 188, 192.

Gas Engines, 5, 6.

1 A oUseboats. 1372.

“Clipper Ship “Flying Cloud,”
13, 134, 165,-° 180.

” - Clipper Ship “‘Lightning,” 69,

” ~~ Exhibition, 106, 192.

Locomotive Races, 14.
Marine Gasolene Engines, 6.
Power Boat Races, 149.
Eevee Boat Records, P51 17.35
” - Railway News, 3, 19, 34. 45, 51,
455-106; 123, 138, 182,
> Sail ‘Boats, Aire hts
Santa Maria, 134.
ete Shipbuilding Notes, 9.
3 Sbip.! Exhibits, 68, 92,
Ship Fittings, 139.
Steam Engines, te;
181,
” Viking Ship, 35.
MGS Workshops, 12,
IY a

108, 110,

155, 169,

195-455

Notes on %” Scale Locomotive, 25.
N. Y. S. M.-E. Power Boat Races, 149.

Our Foreword, 2, 18, 34, 50, 66, 82,
99; 15 se131; 147, 163, 179.
Ownership Statement, 4, 62, 154.
Gauge Locomotive ‘Drawing,
Gauge Locomotive Speeds,

Gauge Pacific, >
Gauge Switches, 187.
“QO”? Gauge Tracks, 187,

111.
180.

634102

iv INDEX

Paint Non-Rusting, 138.

Photographing Models, 137.

te Valve Steam Engines, 9, 155,

Proportioning the. Parts for Model
Steam Engines, 42.

Power Boats, 1938.

Power Boat\Records, 151, 173, 185.

Question Box, 195.

Races for Model Locomotives, 14.

Rail Measurements, 184.

Railway Model Shop, 148.

Se for Electrolyte for Dry ‘Cells,

aoe Model Power Boats, 151, 173,
18
Rust-Proof Paint, 138.

Sailing Boat Races, 75, 111.
“Sandpiper”, Model of, 37.

Santa Maria, 134.
Seagoing Tugboat, 136.

Setting Out Locomotive Crank Pins, 183. —

Ship Fittings, 139.
Ship Models, 52, 69, 103, 134, 135, 137,
165, 180.

Ship Model Exhibits, 68, 92, 108, 110,
12

1,
Silver Soldering, 124. :
Single-Cylinder, 4-Cycle Air Cooled
Gasoline Engine, 5.
Speeds of “O” Gauge Locomotives, Bee
Statement of Ownership, 4, 62,
Steam Engines, 9, 155, 169, 181.

Ten-Wheeled Locomotive, 67. ;
Under

Testing Locomotive Chassis
Steam, 141.

Two-Cylinder, 4-Cycle, Air Cooled Gas
Engine, 6

Two- Cylinder Horizontal Steam Engine,
189

Two-Foot Water Line Model Yacht, 71.

Uniflow Steam Engine, 9.

Unique Locomotive Model, 53.

U. S. S. Schooner-of- War “Grampus,”’
DS 75

Vertical Steam Engine, 155, 169, 181.

Water-Cooled Gasoline Engine, 6.

Woodworker, 93.
Workshops, 12, 19, 45, 157.

LIST OF CONTRIBUTORS

Mr. Frank Birch

Mr. W. H. Buckley

Mr. Harry A. Campbell
Mr. F. G. Carter

Mr. Wm. Chamberlain
Mr. J. W. C. Corbusier’
Mr. H. J. Coventry, M.E,
Mr. G. B. Douglas

Mr. A. R. Ferris

Mr. F. D. Grimke

Mr. Cecil G. Hamilton
Mr. H. O. Havemeyer, Jr.
Mr. C. C. Helmick

Mr. John A. Howland
Mr. W. G. Landon
Mr. L. Lawrence (“L.B.S.C. 2)
Mr. C. O. Liljegren
Mr. Roy. E. McAdams
Mr. H. Muncaster

Mr. J. W. Neptune
-Mr. Paul Reithmaier
Mr. E. I. Schock

Mr. Oscar Schuwendt
Mr. Ralph Skinner
Mr. C. Harry Squier
Mr. Emil Vollenweider

THE

ELMAKER

FOR THOSE
INTERESTED IN MAKING

WOKING MUOQLLS |

JANUARY, 1926 _... 10 cents

THREE MODEL GAS ENGINES—A SINGLE CYLINDER, AIR-
COOLED; TWIN CYLINDER, AIR-COOLED; AND
A MARINE TYPE, WATER-COOLED

BUILT BY MR. EMIL VOLLENWEIDER

oli.
! ue

THE MODELMAKER

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol. Ill.

No. 1

“Entered as second-class matter Mar. 27, 1925 at the Post Office at
\Wew\ York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

In glancing over a pile of cor-
respondence the writer notes the
variety of requests. One reader
asks, ““Where can I obtain a set
of castings for a Model Corliss
Engine?” Another wants a Gar-
den Lacgmotive, with about
12” drivers for a gauge of about
15”. Another asks where could
he get drawings and castings for
a road traction engine. Another
wants an air turbine for high-
pressure compressed air, and one
a shaper to fit on a Lathe; and
many other articles too numer-
ous to mention in this limited
space.

These requests bring to the
writer’s mind a Sunday after-
noon call upon a gentleman, the
owner of a house on Long Island
that had a big garret, consisting
of four finished rooms heaped up
with a most miscellaneous col-
lection of articles. A barrel of
railway tracks; several aero-
plane models; a model trolley
car fitted with only two wheels
to run on a single rail, driven by
an electro-gyroscopic device; two
luna telescopes; five motion pic-
ture projectors; stacks of scien-
tific magazines and books. The
owner then took the writer into
the basement, where he had a
regular machine shop. Here
were finished models, partly fin-
ished models, and sets of cast-
ings. A very fine model of a

single cylinder marine type gas
engine, with all fittings, carbu-
retta, spark coil and starting de-
vice, that ran almost noiselessly.
Also a finished’ 2-cylinder gas
engine. He also had several hun-
dred cylinders and parts of
the gas engine.

He explained that he wished —
to dispose of many of these ar-
ticles, as his co-worker, a me-
chanical engineer and inventor,
who had lived with him for many
years, had recently died. My
host was a scientific investiga-
tor. The two men had worked
out many problems betwen them
making models of their inven:
tions.

Many of their models, no
doubt, would be readily pur-
chased if the various items could
be brought to the attention of
our readers.

G. B., a gentleman who always
enjoys his summer. vacations
near Cape Cod’ told this little
anecdote: :

One day he was passing the
local antiquity-junk shop when, -
glancing into the open door, he
saw a familiar object standing
on end against the wall.that in-

‘duced him to enter the store and

make a closer examination. It
was a half-body model of a sail-
ing vessel, mounted on a panel |
of wood, in excellent condition. —

The old storekeeper, remark-

we
~ ev

3
3
‘ing he had some more of them
things in the barn, left the store.
‘He returned in a few minutes
carrying two similar models,
‘both looking rather dilapidated,
He said that was all he could
‘find, the missus must have
chopped up the others for fire
wood.

. “Can you use them?”

— “What do you want for this
one?” said G. B.

The storekeeper mentioned a
ridiculously small price.
= “Why,” said G. B., “to any-
one interested that would be
cheap at $50.00.”

_.The storekeeper shook his
head incredulously.

' A few days later G. B. was
passing the store when the old
man stopped him and, with a
‘smile, said:

“A party in yachting togs
came here after you left and
‘asked me what I wanted for that
model thing. I told him fifty
plunks. He took it to the door

- In the October issue of The
Modelmaker for 1925, at the re-
quest of the Postmaster of New
York, we inserted a notice re-
questing all our customers to be
very careful in writing their
name and to give us a full postal
address. We have had quite a
few complaints from subscribers
to the effect that they are not
Zetting their numbers regularly.
Upon investigation we find that
in most cases it is because the
subscriber has moved or
changed his address and has not
notified us to that effect. We
particularly wish to stress this
‘point, viz., notify us as soon as
you possibly can your change
of address so that we can alter
our records and prevent the
losses of copies in the mail.

ae:

ee THE MODELMAKER 3
ee i 8

and looked it over carefully, then
he said alright. He produced a
roll of bills and pealed off fifty,
then he carried it off.

“The next day he came again,
with another gent in yachting
togs, and that gent bought the
other two.”

Looking at G. B., he said, “I
guess you know something about
them model things.”

‘Yup, you can’t fool me on
those things,” said G. B. “That
was a half-model of one of Don-
ald MicKay’s clippers.”

“My word! I ought to have
asked that gent a hundred.”

How many homes are there in
this great country that contain
similar hoarding places, where
long-forgotten models of ships
or engines, or mechanical de-
vices are waiting to be resur-
rected and placed in the hands
of those who would appraise
them at their true value.

WHAT HAVE YOU IN YOUR
GARRET?

The Model. Railway News,
principal contents for December
issue: G. N. Southerden’s Gauge
I Clockwork Line. C. L. Ben-
net’s “O” Gauge Solid-fuel Tank
Engine. Gauge “O” Engine
Shed. Rev. H. A. Turner’s “OO”
Gauge Line. Ballasting Model
Railways. Distant Control of
Steam Locomotive Models.
Model Level Crossing Gates.
“OO? Gauge Developments.
Lieut. H. Awde, R. E. Model
Railway System in Germany.
Electric Locomotive Types for
Modeling. General View of the
Glover-Merriam Railway. Our
Mail Bag. Club Notes. Answers
to Correspondence. Trade Top-
ics. With title page and index
for Volume 1.

é ; THE MODELMAKER

STATEMENT OF THE OWNER-
SHIP; MANAGEMENT, CIRCU-
LATION, ETC., REQUIRED BY
THE ACT OF CONGRESS OF
AUGUST 24, 1912, OF THE
MODELMAKER, published monthly

at New York, N. Y., for October 1,
1925.
i sS.:

State oF New York
County or New York

Before me, a Notary Public, in and
for the State and County aforesaid,
personally appeared Edmunds
Spon, who, having been duly sworn
according to law, deposes and says *that
he is the Editor and Business Manager
of the MopELMAKER and that the fol-
lowing is, to the best of his knowledge
and belief, a true statement of the
ownership, management, etc., of the
aforesaid publication for the date shown
in the above caption, required by the
Act of August 24, 1912, embodied in
section 443, Postal Laws and Regula-
tions printed on the reverse of this
form, to wit:

1, That the names and addresses of
the publishers, editor, managing editor,
and business manager are:

Publishers, Spon & Chamberlain, 120
Liberty St., New York, N. Y. Editor,
W. Edmunds Spon, 120 Liberty St.,
New York, N. Y. Managing Editor,
none; Business Manager, W. Edmunds
St 120 Liberty Street, New York,

The owners are W. Edmunds Spon,
120 Liberty St., New York; Wm. Cham-
berlain, 120 Liberty St., New York.

3. That “the known bondholders,
mortgagees, and other security holders
owning or holding 1 per cent or mote
of total amount of bonds, mortgages,
or other securities are: None.

4. That the two paragraphs next
above; giving the names of the owners,
stockholders, and security holders, if
any, contain not only the list of stock-
holders and security holders as they ap-
pear upon the books of the company,
but also, in cases where the stockholder
or security holder appears upon the
books of the company as trustee or in
any other fiduciary relation, the name
of the person or corporation for whom
such trustee is acting, is given; also
that the said two paragraphs contain
statements embracing affiant’s full
knowledge and belief as to the circum-
stances and conditions under which
stockholders and security holders who
do not appear upon the books of the
company as trustees, hold stock and se-
curities in a capacity other than that
of a bona fide owner; and this affiant
has no reason to believe that any other

person, association, or corporation, has
any interest, direct or indirect, in the
said stock, bonds, or other securities
than as so stated by him.

W. EDMUNDS SPON,
Editor and Business Manager,

Sworn to and subscribed before me
this 29th day of September, 1925,
ELVIRA H, PFLUGER,
Notary Public, New York Co., New
York.

(My commission expires March 30;
1927.)
[Seal]

Certificate filed in New York Co. No.
857. Reg. No. 7073.

Mr. Milton Cronkhite, care of
Liberty Electric Corporation,
Stanford, Conn., who is a very
old customer of ours and an en-
thusiastic modelmaker for a
good many years, dropped in to
pay us a call the other day. He
informed us that he had not

done much model work for sev-
eral years, but this fall he has
become again very much inter-
ested in this hobby. He wished
to know if we could put him in
touch with any model fans in
his locality.
many readers in Connecticut,
and’ we hope they will get in
touch with this gentleman and
try and arrange an occasional
meeting. After a few gather-
ings they may see their way
clear to form a model engineers
society for their mutual benetfi.

We have a good

Mr. E. Vollenweider, of 1022 —

14th Street, Sacramento, Calif., —

would like to get in touch with
any model enthusiasts in his

vicinity, with a view to having —

an occasional meeting and if pos-
sible forming a modelmakers
club for mutual benetfi. We
hope he will hear from some of

2 eetcee “A

our many Californian readers. —

ee ae

THE MODELMAKER 5)

MODEL GAS ENGINES
By EMIL VOLLENWEIDER

It was through the courtesy of my employer, Mr. Harry D. Kin-
hear, automotive electrical engineer, of Sacramento, that I was
able to build these engines, with the use of his tools and lathe dur-
ing my spare time.

I received the copy of the October number of the ““Modelmaker,”
and it contains several good articles on modelmaking as well as
much needed information.

The picture on the front cover of this issue shows my efforts
as a modelmaker. The three model gasoline engines were con-
structed by me during the past year. First was the single-cylinder,
four-cycle engine. After that I tried a two-cylinder motor, using
more or less the same principles of construction. The last model
is a single-cylinder, two-cycle, water-cooled marine engine. All of
these engines run very well, and in many ways surprised me. With
the exception of the platform for the twin cylinder, no castings
were used. AIl parts are machined out of the solid.

Following is the data for each engine:

Single-Cylinder, 4Cycle, Air-Cooled Engine

Bore 27/32”, stroke 1”, highest measured R.P.M. over 7000; driv-
ing a generator will develop four amps at 6 volts. Cooling is ef-
fected by blades built in fly wheel; battery ignition; coil and con-
denser are located in the base; cylinder is made of cast iron;
cylinder head of steel; piston of hard aluminum; valves of tool
steel; main bearings, Norma E-15; arranged side by side, spaced
about 1”; crankshaft is made of tool steel; assembled. I have
tested this engine’s usefulness for model airplanes and boats and
find the following: Driving an aerial propeller 16” diameter, 24”
pitch, a speed of 2000 R.P.M. was attained. One filling of gas, about
2 ounces, was sufficient for a full-speed run of 1 hour and 20
minutes. Equipping the power plant with a boat propeller of 4”
diameter, 10” pitch, turning the same over at one-half engine speed,
the R.P.M. attained for submerged propeller were 1950. Due to
very little space in the cylinder head, I had to make the valves
rather small. The ports are 44,” round. The engine is oiled by a
drop oiler with pipe line to cylinder wall. The piston is fitted with
two eccentric cast iron rings, which at first gave a little trouble
while turning them. Patience is always the greatest help in model
| making and is rewarded by a smooth-running, desirable product.

6 THE MODELMAKER

In this engine I use a simple mixing valve with adjustable plunger
to control the air intake. The camshaft is also assembled, as is
the flywheel. Between the core and the rim there are four spokes
and four cooling blades. The crankcase consist of two halves, filed
and turned out of steel, 2” x2” x1”.

2-Cylinder, 4-Cycle Engine—Air Cooled

The angle between cylinders is 45°. Main bearings are Norma
E-15 ball bearings; camshaft bearings are H-12. Plain bearings in
the connecting rods. Stroke 1”, bore 27/32”. The pistons are of
_hard aluminum, each fitted with three rings made of cast iron;
cylinders and' heads are turned out of solid cast iron bar and the
crankcase out of cold rolled steel three inches in diameter. The
connecting rods work side by side on a counterbalanced tool steel
crank. The cylinders are offset. A Z.E.V. Bosch magneto supplies
the spark. The small timing gear is fitted between the H-15 bear-
ings on crankshaft; the assembled camshaft, mounted on two bear-
ing supports screwed to crankcase, is located’ between the cylinders. —
Bronze is uesd for push rod guide, which is fastened to top of
camshaft bearing supports. The rocker arm supports are screwed
to the cylinder heads. It was rather a difficult job to make a
carbureter which would function equally well on low and high
speeds. After building several types, I finally succeeded. The
simple product consists of an automatic air check valve, needle
valve and throttle. Splash oiling was adapted in this engine and
made a breather necessary. The motor is started with a hand
crank, engaging on camshaft; ten ounces of ordinary gasoline are —
sufficient for a two-and-one-half-hours’ run. Oil consumption for
this period is about one-half ounce. The highest R.P.M. obtained
without heavy rim on flywheel was 8000; with rim on, as shown in
photos, only 6000, but it will idle down to about 200.

2-Cycle, Water-Cooled Marine Engine

114” bore, 114” stroke, highest R.P.M. 4300; cylinder head, crank-
case, flanges, piston and flywheel are turned out of one cast iron
bar 23,”%x12”. The circular water pump is built in the cylinder
and is driven from the flywheel by a belt. Ports are machined.
Piston is fitted with three rings, two on top and one below; con-
necting rod is steel, bushed with bronze bearing; crankshaft is
counterbalanced; main bearing is 2144” long and extends into fly-

wheel. I have used battery and magneto ignition. The latter seems j

tele 4

THE MODELMAKER ¢

to be far better.
trol, takes care of carburation.
one, is used.

A simple mixing valve, with adjustable air con-
Gasoline mixed with oil, eight to
E have also built a radiator for this engine, but it is
just a little too small to be used without a fan.

So far no power

tests have been made, but, judging from speed and performance,

it seems to be there.

GAS ENGINE FOR MODEL AEROPLANE

We are preparing to bind’ up
some sets of Volume I, Model
Railway News, and if any of our
readers would like to have their

volume bound up, mail it to us
at once and we shall be glad to

include your volume in our bind-
ing order. If you have not sent
in your subscription for 1926, let
us have jit at your earliest con-
venience, to enable us to com-
plete our mailing List at as early
a date as possible.

THE MODELMAKER

: THE MODELMAKER 9

MODEL SHIPBUILDING NOTES
A Design for a Model Launch

By CECIL G. HAMILTON

Having received a number of queries lately about drawings
for model launches and motor boats, and thinking it would be of
interest to readers of the “Modelmaker,” the following design was
prepared. While following no particular prototype, the general
outline is typical of this class of ship. The model measures 46
inches over all, with a beam of 8 inches and a mean draft of 2
inches. 'The sections are well rounded at the bilge, this feature
making it much easier for plank building the hull, or for metal con-
struction. Fittings have been reduced to the minimum, and the
sheer given a pronounced sweep; this, with the broad, flat stern,
gives a very pleasing effect. It will be noted that from the mid-
section to the stern the L. W. L. is much broader than the deck;
this is known as the tumble home of the frames. At the bow there
is the flag pole, one single bollard and one anchor with stock. The
cabin cover extends from No. 1 section to the cockpit and is entirely
covered, while on top of it, just aft of the mid-section is arranged
the wheelhouse and a short mast. A seat is fitted all round the
cockpit, and at the front is a windshield. Two cleats are fitted on
each side of the deck, a flag pole at the stern, and a sliding hatch
on top of the cabin cover, just aft of the mast. The rudder is of
spade form and underhung, while the propeller is three bladed, 2
inches diameter. The usual coloring used on this class of ship is
white top side, with red or green bottom, while the cabin cover and
wheelhouse are finished to a mahogany tone, also the mast and
flag poles. A fine gold line round the top sides complete the model.
Following the usual policy with these designs, no machinery details
have been given, as these will be attended to later.

It will. have a water tube pot
boiler, with super-heater. The
barrel of the boiler is about 10”
x 2144”, with a 150 square inches

Mr. Angell has given us the
following particulars about an
engine and boiler he is working
on: It is a two-cylinder, single-

acting uniflow piston-valves ma-
rine steam engine. Bore %” x
ips / 64", sizeof base 3” x2”,
height about 4”, with ball-bear-
ing crankshaft. To operate on
high pressure super-heated
steam, approximately 200 Ibs.

heating service to boiler and
about 25 square inches heating
service for super-heater. Fired
with a blow torch. We hope to
be able to give a fuller descrip-
tion of this engine when it is
finished.

THE MODELMAKER

gue ee ‘ aed +. 12 a -

THE MODELMAKER 11

Ye” SCALE MOUNTAIN 4—8—2 TYPE
COAL FIRED LOCOMOTIVE

By HENRY O. HAVEMEYER, Jr. |

The engine is modeled after Baltimore and Ohio R. R. Com-
pany No. 5500, the largest passenger locomotive in the world, from
plans kindly furnished by Col. George H. Emerson, Chief of Motive
Power of that road. It is planned to have the model an exact

working miniature of the prototype, with all fittings working and
all construction according to standard locomotive practice. Two
cylinders, 144” stroke and 11/16” bore, working at 100 lbs. pressure,
are expected to furnish tractive effort of 17 lbs. Weight of engine
complete, exclusive of tender, will be about 60 lbs. Length, 30”;
with tender, 48” long.

Construction Details—Frame, pedestal binders, frame cross-
ties cut from 4%” cold rolled steel, fastened together with hexagon
head steel bolts and studs. Auxiliary frames extending from be-
hind rear drivers tail brace, and’ frame angles of 4” steel, frames
held together by the customary rivets. Pilot beam, equalizers,
spring saddles, links and jibs all cut from. steel stock. Correct
laminated springs with 16 leaves are of .022” thick spring steel.
Axleboxes of brass 1%” thick, slotted for pedestals and of correct
pattern. Trailing truck of Hodges pattern, with standard springs,
brasses and equalizers. Pilot truck of standard pattern. All other
details cut from steel stock, no castings being used' in the frame

- construction.

Wheels of cast iron, drivers 314” dia., trailing 111/16” dia., pilot
S17 /16” dia., all mounted on axles of steel and pinned. Cylinders of
cast iron, steam being distributed by piston valves. Alligator pat-
tern crosshead and slides of steel. Valve motion full Walschaert
all cut from mild steel. Connecting and driving rod'’s all of steel
' fluted, with correct brasses, of phosphor bronze, secured by hexa-
gon wedges and pins. 5

Boiler of locomotive, fire tube type, built entirely of copper. Fire-
box 6” long by 43” wide at bottom, water legs 144”, inner firebox
of 1/16” copper and outer wrapper, back plate, tube plates and
throat plate correctly flanged of 3/32” copper. Barrel of 354” dia.—
10 gauge tube 23” long. Tubes seven in number, 14” dia. 20 gauge
cu. screwed and expanded at tubeplate and expanded at smokebox
end. All rivets 1%” dia. in double rows staggered. Two roof bars

12 THE MODELMAKER

fitted. 5/32” dia. bronze staybolts, 64 in number, maintain distance
between inner and outer shells. Superheater of steel tube fitted.
Grate area 19.6 square inches, tube heating surface 178.50 sq. in.,
firebox heating surface 44.3 sq. in. Total heating surface 222.84 sq.
in. Pressure carried, 100 lbs.

Fittings.—Throttle valve in dome, with regulator on back plate,
water gauge, pressure gauge, blower valve, blow-off valve, 2 check
valves forward, 2 injectors, whistle valve, steam sanding gear valve,
steam brake valve, train valve, shifting valve, ba tepe sais lubri-
cator valve.

Thus far the frames have been finished and assembled with
driving boxes and wheels finished and spring rigging laid out. The

boiler is being built by Tim Kennedy, a boilermaker, in the shops

of the railroad with which the writer is connected. The wheels,
cylinders and pilot truck are the work of Mr. Frank Birch of Detroit.
It is expected to have the engine on the tracks in the spring, after
which a train of 10 all-steel Pullman cars will be built, making up
a complete train over 40 feet long. Accurate to the range in the

' get
' modelmakers residing within a

dining car.

Mr. Edward Hoffman, 10 Gour-
ley Street, Passaic, N. J., is very
much interested in model work,
especially locomotives. He has
a good screw cutting lathe, with
a well-equipped worshop for this
class of work. He would very
much like to get in touch with
any enthusiasts in his neighbor-
hood, with a view to having an
occasional meeting and discuss-
ing models. Having had some
experience in this work he would
be glad to help any other brother
modelmakers if in his power.

Mr. George Kuhr, of 218 Di-
vision Street, Bellevue, Ky., is
very much interested in model-
making and he would likek to
in touch with any other

reasonable distance of his city,
with a view to having an occa-
sional meeting and in the hope
that he will get sufficient replies
to enable him to form a small

The tender is of Vanderbilt type.

model engineers club. We hope
all our Kentucky readers will
get in touch with this gentle-
man.

Correspondence

To the Editor Modelmaker:

I am just about finishing a
model of the Flying Cloud’, about
30” W. L., which I think is a
beauty. I wish some genius
would dope out some way to sail
a square rigged ship so she
would tack. I am not enough

of a real sailor to be able to do

that.
With best wishes for your fur-
ther success, I am,
Sincerely yours,
J. W. C. CORBUSIER.
Hudson, Ohio.
(If any of our readers can give
this gentleman any information

4
2

or suggestions for sailing square .

riggers I am sure that he will ©
appreciate it very much.—EKd.)

:
2 fal
a A. ae

THE MODELMAKER 13

We have just received a most
appreciative letter from Mr. J.
‘W. C. Corbusier. <A short de-
scription and illustration of his
fine model of the S. S. Aquitania
was in the November issue of
The Modelmaker. This enthusi-
astic model boat builder informs
us he has nearly completed a
model of the famous American
Clipper, “The Flying Cloud.”
The prototype of this model was
built by Donald McKay, one of
the most famous shipbuilders of
his time. We expect to give a
description and illustration of
this model in a future issue of
The Modelmaker, and we hope it
will encourage some of our read-
ers to build models of some of
MicKay’s other Clippers and help
to perpetuate the memory of one
of our really great Americans. A
man who put his very heart and
soul into his work. A man who
demanded only the very best, in
workmanship, materials and de-
sign, and who was always striv-
ing in each new ship to make a
finer vessel than any he yet had
built. That is the spirit we
would like to see in all of our
readers. Aim for the very best
that is in you and never be sat-
isfied with just “good enough.”
Cultivate skill in workmanship,
perseverance and infinite pa-
tience. You will then be justly
proud of your models.

Mr. H. Meier, of 49 Bower
Street, Jersey City, N. J., is very
much interested in the construc-

tion of models of old ships. He
would like to get in touch with
any fellow-enthusiasts who may
be residents of his vicinity. He
would also like to know where
he can procure scale fittings for
model ships.

Mr. Frank Birch writes . us
that he has quite an assortment

of model locomotive drive
wheels, and he would like to

‘hear from any of our readers

who are contemplating the build-
ing of a model locomotive.

The Elveron Speed Boat Club,
of 13 Bentley Avenue, Jersey

City, N. J., would like to hear
from anyone in their neighbor-
hood who is interested in the
construction of model power
boats, with a view to a get-to-
gether meeting with the object
of planning for a series of model
power boat races next year. We
know there are a good many
model boat builders in New Jer-
sey, and we hope they will get
in touch with this club with the
above object in view.

Mr. G. H. Stegmann has in
preparation a full-sized drawing

of the lines of the model of the
U. S. S. Frigate “Constitution,”
from which he will be able to
obtain blueprints. He has also
promised to write an article on
the details and fittings for this
model, with scale drawings. This
additional information will be of
value to all of our readers who
have decided! to construct a sim-
ilar model. Considerable inter-
est is being taken in the con-
struction of models of old-time
ships. “Old Ironsides” should
especially appeal to Americans
interested in this line of work.

Mr. Ralph J. Kelley, of Trini-
dad, Col., writes us he is build-
ing a Coventry locomotive, 214-
inch gauge, and if there are any
model enthusiasts in his vicin-
ity he would like to get in touch
with them, with a view to a

friendly meeting once in a while.

* 7” ra + bs

7 i
w Fae,

Vee THE MODELMAKER

MODEL LOCOMOTIVE RACES

By C. 0. LILJEGREN

Airplanes, cars, motor and sailing yachts owe their present high
perfection primarily to racing—-why not have races for locomotives?
It is a matter of railroad history that Stephenson won the first
locomotive race ever held, but the Swede, John Ericson, was a close
second, and but for the breaking of a small part of the gear might
have won. In that case, the Monitor would perhaps not have been
built, but it is idle to speculate.

To my knowledge, model locomotive races have never been held,
and indeed the difficulties are many when you consider that as a
rule no one can make the run aboard: the locomotive. Of course,
big models have been built, both in this country and abroad, big
enough to carry many men. Such models cost a good deal of money,
and tracks to accommodate them are not cheap.

For these reasons some outside braking arrangement to stop —
the train is necessary. It could consist of a number of weights —
attached to kind of a harness for the locomotive to run into, or
fitted with some kind of snubbers, one on each side.

Then there is the matter of rating the locomotives, and the —
scale. As for the latter, I should suggest both %-inch and 1-inch
scale, with gauges of 21%4 and 5 ins., although these are not strictly
to scale. For rating steam locomotives, the same formulas can be ~
used as for full-size cars, and for gasoline and Diesel locomotives,
American Power Boat Association has developed formulas that
could be used with advantage.

After being rated, the locomotives should be handicapped by
extra loads, just as in horse racing, each locomotive to pull at
least one car, if found practicable.

Regarding the track, provision should be made for two or more —
trains to race at one time, which add tremendously to the interest. —
This means that two. or more tracks must be laid, all of the same
length and form. Besides, there should be a home stretch, or —
straight part near the finish line, where the trans can run parallel. —
Crossings, at least grade crossings, are too risky and should be ~
avoided. It seems, then, that the best track should have horseshoe —
shape, two or more tracks all pointing the same way. Of course, the
track need not be level, although, since there can be no braking z
down hill, too steep grades are to be avoided.

: ~ Sea arid THE MODELMAKER 15
3 Clearly, oval tracks would be best suited for racing but for the
“necessary two crossings, on the curved part of the tracks, too. Hach
track need not be level, although, since there can be no braking
insuring equal tracks and fair play. In this manner any length
‘of a course can be obtained simply by running so many laps, an
“undeniable advantage of the oval track. Unfortunately, there are.
not room for two trains to pass each other on the same track, as
in auto car racing, hence two tracks must be used to get real thrills.

By these lines the writer hopes to influence some Model Society
to lay such tracks, and to inaugurate racing for locomotives, steam
as well as internal combustion, both of which may be seen in

increasing numbers in the near future.

BOOK REVIEWS
Steamboat Days, by F. E. Day-
ton; illustration by J.
Adams; xi ++ 436 pages, one col-

-ored plate and 88 illust; 8% in.
x 6 in.;

cloth; $5.00.

_ We believe this book will in-
terest many of our readers, be-
cause it contains a considerable
amount of historical and practi-
cal data relating to the develop-
ment of steam navigation in the
United States, commencing from
the earliest attempts to the pres-
ent day, giving the names of
steamers, dates of construction,
builders and owners ,with the
names and a short account of
the pioners of the steamship in-
dustry. Many interesting items
and amusing anecdotes are in-
cluded. While the general make-

up of the book is excellent, the

‘quality of the illustrations is de-

‘cidedly poor.

FOR SALE

Complete working drawings,
24 x 36 in., postpaid $1.50. Free
list of Modelmakers Supplies.
P.

W. Cornelius, 2457 &K.
Washington St., Indianapolis,
Ind.

| ae

oa
i--

Bench Drill—Build your own.

FOR SALE

Patterns—Wood and Metal,
Models and Small Castings.
Special attention to modelmak-

ers wants. J. H. Koch, 103
Summit Ave., Linwood, Pa.

Morgan twenty-foot glider
parts. Precision machine work

for models a specialty. F. W.
Icken, Morsemere, N. J.

-Constructional
24” Model Racing Yacht, 1
sheet, $2.25. Perry’s Flagship,
the famous brig Niagara, which
won the battle of Lake Erie.
Length of hull, 254%”. 3 large
sheets, $5.00. These blueprints
give all details and measure-
ments to build and rig above
models. A. R. Ferris, 284 Hast
151st St., Cleveland, Ohio.

Blueprints —

HELP WANTED

Help Wanted—Mechanics to
make old-time wooden ship mod
els. Also riggers and hand
painters. Write, Becker, 4135
Third Ave., Bronx, New York.

AF LR eae

16 THE MODELMAKER

FOR SALE

Gears and Model Supplies of
every description, catalogue 5
cents. Experimental Supply
House, Box 10, Station Y, New
York City. —

Horizontal Flue Boiler and
Blow Torch, fully equipped. Also
two-cycle, single acting, slide
valve engine. Send for particu-
lars. Robert Engel, Rid'gewood,
New Jersey.

Locomotive Drive Wheels, all
sizes, from 134” dia. to 414”.
1”x1” vertical engine castings
and parts, $10. 1”x1” horizontal
engine castings and parts, $10.
Passenger and freight car truck
castings. Hexagon steel bolts,
Nos. 2-56, 5-40, 7-32, 10-82, taps to
suit. List 5 cents. Frank Birch,
General Delivery, Highland
Park, Mich.

WADE
3 Bench
Via Lathes

Capacity: 4” dia. x 12” length.
Turning, Facing, Boring, Drilling,
Winding, Thread Cutting

No. 1 Plain Machine as above .........$28
No. 2 Back-Geared, Screw Cutting $58

SEND FOR FREE 16-PAGE
CATALOG

Shows full details and accessories

THE GEROLD CO. (Dept. M8)
120 Liberty St., N. ¥.

Gas Engines—The three Gas
Engines shown on the front page
of this Modelmaker. Write for
particulars to Mr. E. Vollenwei-
der, 1022 14th St., Sacramento,
Calif. /

Blue Prints of Ships for
Modelmakers, send for circular.
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Models Parts _ Lathes
Domestic — Imported
A. Alexander Singer

15 Moore Street
New York City

Enquiries Invited

TRIPLE X comsainartion :

Lathe Milling and Drilling Machine

IDEAL

FOR

MODEL
WORK

SEND FOR

CATALOGS
2 FREE

TRIPLEX MACHINE CoO.

50 Church Street _ New York City

MODEL SLIDE VALVE MARINE ENGINE

14” bore, $12.75, or 54” bore, $15.75. Be sure to
power your boat with a Bathe steam engine
and boiler model. We are builders of working
model engines and boilers of many types. We can
supply you with a power unit that will meet the
requirements of your particular model boat. Boiler
fittings and Model Steam line fittings. Special
work. Illustrated catalogue, 20 cents.

BATHE MANUFACTURING CO.
Dept S, 5214 Woodland Ave. Philadelphia, Pa.

THE

MIDELMAKER

FOR THOSE
| INTERESTED IN MAKING

WORKING MODELS |

Vol. Iil, No. 2 ° FEBRUARY, 1926 10 cents

MR. A. R. FERRIS’S MODEL 24” RACING YACHT

Serie ars. ea ak, it eal

THE MOD ELMAKER

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol. Ill.

No. 2.

“Entered as second-class matter Mar. 27, 1925 at the Post Office at :
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

The boiler is, without question,
the most important part of a
steam power plant, for without
its product—steam—the engine
would not function.

Much time and scientific ex-
perimentation has been devoted
to the development and im-
provement of the steam boiler,
and in consequence the shapes
and types, and designs, are very
numerous.

Three of the most important
essentials are :Strength and dur-

ability, high efficiency in steam -

production, and low cost for

fuel.

The water tube boiler may be
cited as one of the most effi-
cient type, but it is an expen-
sive piece of apparatus, and if
not properly taken care of the
cost of upkeep and repairs may
be very considerable.

One of the most difficult prob-
lems for the engineer is the re-
moval of scale from the tubes,
for if this is not properly attend-
ed to, corrosion may set in and
that means leaky tubes with loss
of valuable time in making re-
pairs.

A Mr. Atmos, a Saedn en-
gineer, has made a radical in-
ovation in boiler designs. He
has constructed a boiler of a
tube about 8 in. dia. and about
11 ft. long. This is revolved at

for the steam to generate.

a speed of 3800 R. P. M. The
water is pumped in at one end
and the steam taken out at the
other. The tube is kept about
half full of water allowing space
The
centrifugal action of the tube
throws a film of water against
the hot tube wall ensuing quick
steaming. This boiler has been .
in successful operation for near-
ly three years producing 700 Ibs.
of steam per sq. in. 4

Here is an opportunity for sci-
entific experimentation that
should appeal to some of our
readers.

As no details of construction —
were given it leaves the Model-
maker free to commence his
work from his own particular
view point. z

The following details would
have to be determined by ac-
tual experiment.

Material—Brass, hard drawn
copper or steel tubing.

Dimensions—T hickness of
wall, diameter, and length of ©
tube.

Ends—Form of end pieces.

Method of Fixing Ends—Weld-
ed, riveted and hard soldered,
or threaded and screwed on. It
might be advisable to make one
end piece to screw on so that the
tube could be readily opened and
cleaned out.

ne eae OG

THE MODELMAKER 19

Trunnions—These could be
part of the end pieces, but with
hollow centers for water pipe
inlet and steam supply pipe.

_ Pipe Joints—These could be
of the ball and socket type
ground to a tight fit to prevent
water, or seam leakage.

Gears—One for tube and one
to fit on shaft of motive power.

Fire Box—Approximately %
the length of tube and fired with
hard fuel, row of burners, blow
torch, or primus burner.

. Framing for Boiler—Could be
made of light T iron, the ends
of uprights bolted to a heavy
piece of sheet iron as a base
plate. The frame work arranged
so that it could be made wider
and longer if desired to accom-
modate tubes of varying diame-
ters and lengths. A pillow block
secured on the base plate at each
end of frame bored out at the
top for bearing brasses and fit-
ted with bearing caps.

Mr. G. M. Clarke, of 432 N.
Huron Street, Ypsilanti, Mich.,
is the happy possessor of a very

neat and well equipped work-
shop, where he occupies his
spare time at his hobby, build-
ing models. He is now at work
on a % in. scale locomotive.
He wrote us he would-be very
pleased to meet anyone interest-
ed in this delightful pastime and
has asked the Modelmaker to
put him in touch with any of our
reacers who may be residents of
his city, or nearby towns. We
hope all of our readers up his
way will get in touch with this
gentleman with a view to an
occasional meeting. These no-
tices have been the means of get-
ting many little groups together
in different parts of the States.

Boiler Casing—The frame
work could be covered with as-
bestos sheeting and sheet iron,
but the form of casing would
depend somewhat on what type
of power plant the boiler was in-
tended to operate.

R. P. M—tThe right speed to
rotate the tube could be decided
upon after actual tests under
steam.

Condenser—A surface con-
denser might be added if the
beiler was to be used on a model
boat. The condensed water go-
ing back into the supply tank.
This would give the boiler a
larger steaming radius.

Lubrication—The type of lubri-
cators best suited to the special
conditions.

Boiler Braces—There might be
two or three longitudinal rods to
hold the ends firmly.

We should be very pleased to
receive comments or construc-
tive criticisms upon the above
subject from any of our readers.

Model Railway News, contents
of January issue 1926. Mr. Beal’s
00” Gauge West Midland Rail-

way. Too much Model Railway?
An “00” Gauge Wagon Tippler
for a Model Mineral Depot.
Railway Planning Suggestions.
Notes on Model Loads. Signs
for Permanent-way. Speed Re-
strictions. A New Zealand Mod-
el Locomotive, 2” Gauge 4—6—0.
Why Not Narrow-gauge Proto-
types? Photographing the Model
Railway. Designs for Model
“0” Gauge. Mr.-H. R. Norman’s
1 N. L. R. Line. Our Mailbag.
Answers to Correspondence.
With the Clubs. With this is-
sue Volume 2 commences. Pub-
lished monthly, annual subscrip-
ee $2.50. No single numbers
sold.

THE MODELMAKER

Li UIQdE) LOL pC Frf PLlCOG WEP CO PHUNODS NTYUL

er)
an

THE MODELMAKER ? 21

MODEL SAIL BOAT
By MR. A. R. FERRIS.

The hull of this 24” racing yacht was made by the “Bread
and Butter’ method from 5 white pine boards each of which had
its corresponding waterline or outline of the shape of the hull at
that particular section marked on it from a templet. Each board
was sawed out to its particular outline on a scroll saw. The 5
boards were then screwed together one on top of another, but
not glued as yet. The assembled boards, making a rough out-
line of the hull were then mounted on a base board. This base
board had 5 lines drawn across it and for each line a templet
had been made to the correct shape of the hull at that particular
section. The lines were numbered and each templet numbered
with the same number as its corresponding line. The hull was
then carved out by cutting off the sharp corners of the board
and applying the templets as needed.

When the hull was nearly worked to shape with the gouge it
Was gone over with a small block plane, wood file and No. 2 sand-
paper. The hull was then dissembled and the inside of each
‘board sawed out leaving the thickness of the walls approx. 14”.

Hull was then screwed together, LePages glue having been ap-
plied to the boards and left to dry for 24 hours. It was then
gone over with No. 1 sand paper and then with No. 00. Hull
was then mounted on a cradle the remaining surplus wood cut
out leaving the walls 3/16” thick. The shear was then cut and the
inside given two coats of paint.

This method of making a hull I have found to be very satis-
factory as it requires less work than carving from a solid block.
This is due to the fact that when the sharp corners of the boards
are cut off, which is readily done, the hull is very nearly to the
shape it will be when finished.

The deck was made from white pine 14%” thick on which parallel
lines were drawn on with a scratch awl and straight edge to rep-
resent planking. Deck was then nailed on with brads two ribs with
a slight curve having been fitted in before.

The rigging is as simple as possible, fish line being used
and rigging hooks and bouses being used to attach the sails. Sails
and masts can be taken down in a few minutes. The rudder and
keel are lead weighted.

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THE MODELMAKER

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THE MODELMAKER

The model has proved to be a very steady sailer and makes
a fine appearance on the water. The principal dimensions are

-as follows:

Hull, 24” long, 54% beam, 6% deep.

Masts and Spars
Main mast, 26” long, 7/16 dia. at large end tapered to 3/16 at

small end.

Topmast, 754” long, % dia. at middle.
Main boom, 18” long, % at middle tapered to 1%4 at each end.

Gaff, 1034” long.
Bowsprit, 13” long.

Topsail yard, jib boom and foresail boom all 6” long.

Four sails:

Model Engineer, principal con-
tents for December 3, 10, 17, 24,
31. Interchangeable Vice-Jaws
A 214"
Gauge 4—4—0 Locomotive. Clock
Repair work. Making a pair of
Lathe Standard and _ Treadle.
Making a Small Drilling Pad.
Making Condenser’ Ferrules.
The Importance of Modelmaking
and Model Engineering. Bevel
Gear Control for Lathe Top-
slide. Locomotive Prototypes
and Economical Battery-charging
Rectifier. Thermos Stats. A
Model 2%” Gauge —4—4J2.

Electrically-driven Tank Loco- .

motive. Automatic Railway Sig-
nalling. Cutting Approximate
Metric Pitches. Self-acting
‘Brake Mechanism for Lathes.
Model Locomotive Building. The

Model Battleship “Hopeful.” <A

Portable Dividing Head. Practi-

shop Topics.

eal Telephone Installations in
private houses. A Column of
“Live Steam” by “L. B. S. C.”

Wireless Telephony and Sub-

marine. Light Engineering
Equipment and Supplies. Work-
Domestic Engi-
‘neering. An Electric Light
Supply Failure. Model ‘Marine

‘*
ge

Main sail, top sail, jib and fore sails.

Notes. Recent Inventions. A
2” by 2” Horizontal Steam En-
gine. Queries and Replies. Prac-
tical Letters from Our Readers.
Acetylene Welding and the Mod-
el Engineer. Reviving Dry Bat-
teries. Society and Club Doings.

‘Titlepage and Index for Volume
53.

We understand a Model Yacht

Club has recently been organ-

ized in Providence, R. I., and
amongst its members are some
very skilled model yacht build-
ers. We wish them every suc-
cess. |

Mr. A. A. Singer recently held
another meeting at his office, 15
Moore Street, New York. There
were fifteen model enthusiasts
present. Mr. Lozier exhibited
one of his steam locomotives and
some cars which were very much
admired. Mr. Singer expects to
hold another meeting in Febru-
ary and is in hopes that he will
get sufficient support to warrant
the formation of a Model Engi-
neers Club. He would be glad to
hear from any of our readers re-
siding in New York or vicinity.

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THE MODELMAKER 25

NOTES ON %4” SCALE LOCOMOTIVE
By W. G. LANDON

I am building a half-inch scale locomotive. The nucleus was
a set of castings purchased from Carson (England) in 1912, for a
North Hastern Atlantic type. The work, after many long interrup-
tions, is at last nearing completion.

The following are notes on a few oddities incorporated in the
‘design. After machining the wheels and the cylinders, and cutting
out the frames, it was G2cided to make an American locomotive.
I wanted to use Walshaert’s valve gear. Did not wish to attempt
piston valves, and did not want the incorrect combination of a piston
‘valve casing with a valve gear arranged for outside admission.

The New Haven Atlantic type engines, in their original condi-
tion, fulfilled these conditions, and as I was familiar with the mo-
tive power on this road, I adopted this design.

The castings supplied were for outside cylinders, with valves
between the frames. A piece of 1/16” sheet brass was bent to a
right angle and the flange, which in English practice would be bolted
‘to the frames, was, after tinning, riveted on one face of the angle
piece, an opening being cut for the valve seat to project through.
Braces were attached to the cylindr flanges. A block of brass, with
center cut out, formed the steam chest and was bolted on.

Dummy springs are fitted, but they form a very live part of the
equalizing system, which is according to the Pennsylvania E-6s class,
i.e. the truck is equalized with the forward drivers, and the main
drivers with the trailer. With this arrangement any predetermined
weight may be put upon each set of wheels, with the assurance that
it will not vary. The truck is also self-centering as any side mo-
tion swings the lower end of rod, (a) Fig. 3, in an are and puts
greater weight thereon, with the tendency to return to central
position. ;

Several years ago I had great trouble, the front truck of 4—4—0
engine leaving the rails through lack of weight. Equalizing the
drivers and thus throwing weight on the front part of the engine
on the truck effected a cure.

Fig. 2 shows a throttle, which externally is an imitation of the
Chambers throttle and internally is of the slide valve type. The
seat has the dry pipe expanded and sweated in and holes (b) bored
and countersunk for screws. The dry pipe, with seat, is put in posi-

pM Teen a hier Mg! ie Sha ae.
26 THE MODELMAKER

tion before the dome. The pipe is annealed and bent in a long
curve, Fig. 2-B, so that it can be pushed through the large hole C
and thence through its hole in front tube plate. Then the seat can
be pushed down and secured with screws. A U piece is riveted on
the valve. Its height must allow crank in vertical position to pass
through it for assembly. The valve is then ground in on the seat.
Assemble as.follows: The valve is placed in position, the dome
having been fixed. The crank shaft is put in gland, packing lint
put on, and gland packed. The operating arm (V) is then secured
by a small pin. The whole can then be inserted through hole (H)
in the dome. This hole must be large enough to permit the crank
to pass. The crank is held vertically, while the gland nut is screwed
into dome. Washers may be needed at the shoulder to keep the other
end of crank in its bearing (X). The outside throttle connections —

section j
at A

Fig3 Eevalizers

form an easy means of control without ungainly extension handles
in the cab.

I presume a good many modellers use my method of measure- |
ment, but I do not remember seeing it described. Whether I am
using a photograph, or a drawing, the first thing I do is to make
a scale of feet and inches to correspond. If no dimensions are
given, the scale may be computed from some known factor, such
as diameter of driving wheel, or extreme height. Next I construct
a ruler the scale I am going to model; for instance for 17 /32: 20
spaces, or so, each 17/32 which would be 20 ft. and one space divided
into 12 parts, each being a scale inch. The measurements are then
taken from the drawing of the original, supplemented, if possible,
by a table of leading dimensions, and transferred to the model by
the second rule. This scheme is convenient whether one is making
a full set of drawings, or only occasional sketches and using the
eye. Sg

THE MODELMAKER 2'¢

A PACIFIC LOCOMOTIVE

CONSTRUCTED BY MR. L. LAWRENCE
(PED, Oi)

While it is not our policy to feature the work of our foreign
contemporaries. We cannot resist the desire to insert an illustra-
tion and few particulars of “L. B. S. C.’s” latest Model Locomotive.

_He has earned an international reputation for the splendid workman-
ship he always puts into his models; and we believe our readers
are always interested in such men and the work they do. He is a lo-
comotive engineer by profession and knows the “in’ards and
out’ards” of the iron horse so thoroughly that it would “go agin
his grain” to turn out a piece of bum work.

We have heard of firms who have become so commercialized
that they are content to trade on a bygone proposition; but murder
will out, and they will find that the lemon they have stuck some
innocent model fan with will one day come back to them as a

. boomerang. ;

We feel quite sure that this will never happen to “‘L. B. S. C.”
or to several good conscientious workmen in the U. S. who we know
are doing their level best to give a square deal and turn out work
that will stand the severest test and scrutiny.

There seems to be one thing that purchasers of finished models
overlook, i.e. a good job well done should be well paid for. The
maker of a fine model is just as much entitled to a good price for
his finished product as a sculptor, artist or jeweller for their handi-
work. The construction of a fine working locomotive means good
material, skillful workmanship and many weeks of arduous, pains-
taking work.

DETAILS OF “PACIFIC” LOCOMOTIVE; ENGLISH SOUTHERN
RAILWAY OUTLINES.

Loading gauge, American; rail gauge 21% in.

Length over buffers, 3 ft. 8% in.

Boiler—4% in. diam., 1 ft. 10 in. long, including smokebox.
- Tubes—Twenty-two % in. diam., two 9/16 in. flues for super-
heater; all 13 in. long. Two-element Robinson superheater.

Firebox—4 in. x 41%4 in.; grate area 17 sq. in.; working pressure,
75 lb. (can be increased to 100 if desired). Fuel, hard coal.

Cylinders (four, high pressure), % in. bore, 1% in. stroke. Inside
‘cylinders drive leading coupled wheels.

¢
‘
j Ar

28 THE MODELMAKER

Bogie, pony and tender wheels, 1% in. diam. Drivers, 3 5/16 in.
diam. | |
Valve gear, full Walschaert’s, two sets. Inside valves worked by
rockers; 1/64 in. lead, 1/16 in. lap; cut off at 75% in full gear;
will link up to 20% when running and maintain even beats with
three passengers up.

Working details—Boiler fed by two eccentric-driven pumps,
5/16 in. bore % in. stroke, and a working injector, the delivery
cone of which has a bore of 1/40 in. and works down to 35 Ib. pres-

sure. Three snifting valves; whistle, with spring lever valve;
working leaf springs on tender trucks; throttle in dome; two % in.
safety valves, ring blower, and all other details as in English prac-
tice, including all boiler head fittings.

The engine maintains its working pressure with ease, waen both |
pumps are putting cold water into the boiler. With 75 lb. pressure —
it has actually hauled one load of five adult passengers, and on a
second trip, another load of three adults and six children, Its _
maximum hauling capacity has never been fully tested, but on
sanded rails with 100 lb. steam would probably exceed 1,000 lbs.

THE MODELMAKER 29

REVIEW NOTICE

Galvanizing a theoretical and
practical treatise on the subject
for the use of works managers,
students and others by Heinz
Bablik translated by C. T. C.

Salter, iv 168 pages, 84 illus., 9
in. x 6 in., cloth, $5.00.

During the many years devot-

ed to the management of the
large galvanizing works the au-
thor has made many scientific
experiments in this subject and
he believes the results of his
researches will prove of some
_value to others interested in this
[ industry. Contents of Chapters:
I. Rust and its Prevention. II.
The Structure of Galvanized
Coating; Hot-Galvanized Coat-
ings, Electro-galvanized coatings,

Sheradized Coatings, Schoop
‘Coatings. III. Pickling. IV. The
‘Flux. V. Hot-Galvanizing; The

| Galvanizing Tank, The Galvaniz-
'ing Process, The Austrian Gal-
vanizing Process, Galvanizing
Cast Iron. VI. Raw Materials
and Waste Products of Hot-
Galvanizing. VII. The Theoreti-
cal Principles of Electro-Galvan-
izing. VIII. Electro-Galvanizing
Plant. IX. Sheradizing. X. The
Schoop Process. XI. Testing
and Judging Galvanized Coat-
ings; Mechanical Properties,
Method of Galvanizing, Thick-
ness of Coating, Action of Cor-
rosives. Index.

Mr. Volney F. Crouch, of 530
West Oak Street, Roseburg, Ore.,
writes us that he has found two

| very enthusiastic modelmakers
and he has written us to know
if we cannot put him in touch
with any other gentlemen inter-
ested who might be residents of
his state. He would very much
like to form a modelmakers club
providing he can get enough
members to support the move-
ment. Please write to him.

¢
A

Mr. Frank Birch, of Highland
Park, Mich., after six months of
very close work and long hours,
took a Sunday off for a “toot.”
He made a call upon Mr. G. M.
Clarke, of Ypsilanti, Mich., and
had a delightful visit with that
genial and enthusiastic model
maker. They had a grand time
talking models. We are glad to
do all we can to bring our read-
ers in contact with each other.
That is the best and surest way
to encourage the development of
really worth-while work and en-
thusiasm in their pet hobby.

Mr. Ernest Maunder, of St.
John’s, Newfoundland, has sent
us photos of three of his model
ships representing some of the
old Newfoundland Sealing Fleet.
We hope to be able to give a
description and illustrations of
one or more of these models
later on,

Wr. ©. S. Spargo, 41 Randall
Ave., Freeport, Long Island, N.
Y., has built quite a number of
models. He is now interested
in the construction of a locomo-
tive power of which will be elec-
tric motors. He would like to
hear from any of our readers
who could advise him as to
where he could get some small
electric motors suitable for this
work.

Mr. John Martynek, 16 Holland
Street, Binghampton, N. Y., is
very much interested in models.
He would like to get in touch
with any of our readers in. his
vicinity who would be interest-
ed in an occasional get-together
meeting to talk models.

When writing for information
please enclose stamped and ad-
dressed envelope for reply.

cae RR 8 8) ne en Gy a ra
; oe ar Se
‘fo

30 | THE MODELMAKER

CORRESPONDENCE

The Modelmaker,
120 Liberty St.,
New York, N. Y.

' Dear Sits:—

Inclosed find $1.00 to pay for
my subscription for the Model-
maker for the coming year, you
have a great little magazine and
keep the good work up.

In reading your editorials in
the December issue you say
that there is some criticism as to
the amount of space that you
devote to model locomotives, I
should think that could be
blamed directly to the model
makers as it is your obligation

to publish descriptive matter of
all interesting and unique mod-
els that come to your attention.
I admit that there is something
fascinating in model locomotives
and expect to start construction
on one soon, but there is such
a wonderful field for models, for
instance, stationary engines built
to scale the same as locomotives
and there are any number of
_types to choose from, corliss en-
gines either simple or compound
and by the time that the model
maker builds one and finishes a
full releasing gear with standard
governor control, he will have a
beautiful piece of work and one
that will well pay him for his
labor, then there is the auto-
matic cut-off engine that could
either be made simple or com-
pound and when made to scale
would make a fine model and
the model maker could also
make a small D. C. generator and
direct connect to the engine,
there is also the hoisting engine
that would make a fine model
to say nothing of pumps of va-
rious ‘xinds also boilers. The

portable engine, traction engine,

also road rollers would make
fine models, and to go into the
electrical game there are motors,
generators, miniature switch-
boards and a host of other
things, a model of the house that
you might be living in completely
furnished would make a novel
exhibit. I am merely offering
these suggestions to try to open
a new train of thought for some
model maker that may want ete
get out of the rut.

The average model maker I
have found does not take the.
same painstaking labor to con-
struct a model stationary engine
that he would if it were a loco-
motive and almost always while~
they run very well do not look
like a large engine and the same
holds true to boilers as most.
model boilers are not designed
to promote rapid circulation
which is essential to all boilers
regardless of size, I would like
to see some of the model makers
make some of the above models
to scale as I know that they will
be delighted with results. .

You may think that I am un-
duly critical in regards to the
stationary engine models but
will say in reply that I have
been a stationary engineer for
seventeen years and in that time
have- made a number of scale
models of both engines and boil-
ers and the results were al-
ways highly gratifying.

I resolved to write this letter
when I read the editorial T
spoke of in the beginning of this -
epistle and hope that you will
take it in the spirit in which it
is written, so hoping that the
Modelmaker will have a highly
prosperous year, I remain, “a

Sincerely yours,
W.W. MATHER,
Warren, Ohio.

3 THE MODELMAKER 31

_ Mr, J. W. Neptune, 130 Paul
Court, Akron, Ohio, writes us
that the notice we inserted in

the Modelmaker several issues
ago has brought him a number
of enthusiastic visitors. They
are planning to have another
meeting shortly with the object
of forming a Modelmakers club.
If any of our readers in this
section are interested in this
movement and have not already
communicated with Mr. Nep-
tune we would suggest they do
so at once as it seems from Mr.
Neptune’s letter that it will be a
real live organization and worth
belonging to.

Mr. F.. C. Icken, of Morsemere,
N. J., has in hand the construc-

tion of an up-to-date electric
‘locomotive for “O” gauge. He
would be glad to exchange views
with any of our readers inter-
ested in the construction of a
similar model.

In writing to the Modelmaker
for information please enclose

a stamped’ and addressed envel-
ope. While we are always will-
ing to answer our readers let-
ters to the best of our ability
our correspondence is getting so
large as to make the item of
postage very considerable.

J. H. B. we would recommend
Practical Lessons in Metal
Turning and Screw Cutting, by
Marshall, price $1.25. This is
considered one of the most
‘practical works on this subject
and will fully cover all the
questions you ask. The many
illustrations are very clear and
explicit, copies of this book can
be obtained from our Book De-
partment.

WANTED

One 6 in. Universal Lathe
Chuck in good condition, priced
right. Neptune, 130 Paul Court,
Akron, Ohio.

FOR SALE

14% horse power
gasoline) engine. Largest size
Goodell double head grinder
guaranteed. Clow, 226 Second
St., N. E., Washington, D. C.

gas (not

Radio and Electrical Supplies,
Robert E. Bedford, Johnstown,
New York.

Blue Prints of Ships for
Modelmakers, send for circular.
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Patterns—Wood and Metal,
Models and Small Castings.
Special attention to modelmak-
ers wants. J. H. Koch, 103
Summit Ave., Linwood, Pa.

Morgan twenty-foot glider
parts. Precision machine work
for models a specialty. F. W.
Icken, Morsemere, N. J.

Bench Drill—Build your own.
Complete working drawings,
24 x 36 in., postpaid $1.00. Free
list of Modelmakers Supplies.

P. W. Cornelius, 2457 KE.
Washington St., Indianapolis,
Ind.

Constructional Blueprints—24”
Model Racing Yacht, 1 sheet,
$2.25. Perry’s Flagship, the fa-
mous brig Niagara, which won
the battle of Lake Erie. Length
of hull, 254%”. 3 large sheets,
$5.00. These blueprints give all
details and measurements. to
build and rig above models. A.
R. Ferris, 284 Hast 151st St.,
Cleveland, Ohio.

32 THE MODELMAKER

MODEL SLIDE VALVE MARINE

ENGINE

14” bore, $12.75, or 54” bore, $15.75. Be sure to

work.

power your boat with a Bathe steam engine.
and boiler model.
model engines and boilers of many types. We can
supply you with a power unit that will meet the
requirements of your particular model boat. Boiler
fittings. and Model Steam line fittings.
Tilustrated catalogue, 20 cents.

BATHE MANUFACTURING CO.
Dept S, 5214 Woodland Ave.

We are builders of working

Special

Philadelphia, Pa.

MODEL MACHINERY

Sole U. S. Agent for the noted Eng-
lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasoline,
Gas Engines, Boilers, Fittings and
Trimmings; Electrical Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “CABLE SERVICE.”

Alfred Paul & Son, Engineers

3 Ashland Street _
Melrose Highlands, Mass., U. S. A.

Catalogue 25c, Coin or Post Office Order
Advices and Suggestions Cordially Given

WADE

\ 4 Sos Bench
Vine Lathes
Capacity: 4” dia. x 12” length.
Turning, Facing, Boring, Drilling,

Winding, Thread Cutting

No. 1 Plain Machine as above ........ $28
No. 2 Back-Geared, Screw Cutting $58

SEND FOR FREE 16-PAGE
, CATALOG
Shows full details and accessories

THE GEROLD CO. (Dept. M8)
120 Liberty St., N. Y.

Models’ Parts Lathes
Domestic — Imported

A. Alexander Singer

15 Moore Street
New York City

Enquiries Invited

Please state in detail what you are
interested in.

TR IP LE X comsinartion

Lathe Milling and Drilling Machine

IDEAL

FOR

MODEL
WORK

SEND FOR |
CATALOGS —
FREE

TRIPLEX MACHINE Co.
50 Church Street New York City

THE MODELMAKER

BOUND VOL. I.

1924. $1.60

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. II.

1925. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy.
We still have a few copies of Nos. 1, 2, 3, 4, 5 of Vol. I. Price 10¢c each. |

We still have a few copies of Nos. 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. ee

Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

vor

THE

MODELMAKER)

FOR THOSE hak
INTERESTED IN MAKING 7

WORKING MODELS") °

Vol. Ill, No. 3 March, 1926 10 Cents

“ey MODEL OF A VIKING SHIP
: MADE BY MR. H. 0. HAVEMEYER, JR.

THE MODELMAKER

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol. Ill.

No. 3.

“Entered as second-class matter Mar. 27, 1925 at the Post Office at
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

With the approach of Spring
and warmer weather our Model
Yachtsmen will be tuning up
their last year’s boats and com-
pleting new ones for the open-
ing races of the coming season.

We shall be glad to receive
advance notices of forthcoming
events from the Secretaries of
the various Model Yacht Clubs
in the U. S. and Canada. We
hope the time is not far distant
when there will be Annual
Model Yacht Races at which
members of the various Clubs
will enter their boats. A Na-
tional Model Boat Regatta
would increase the interest very
considerably in this delightful
recreation.

We note from letters received
a very considerable interest is
being taken in the construction
of models of old-time sailing
ships. The models of Donald
McKay’s Clippers we described

The Model Railway News,
principal contents for February
issue: Mr. E. G. Attenborough’s
214” Gauge Outdoor Railway. A
very complete installation.
Modelling the New L. M. S. R.
“Baltic’ Tanks. Modelling Nar-
row Gauge Railways. Model
Railway Signalling. Building a

Number 1 Gauge.

in the December, 1925, issue of
The Modelmaker, have all been
sold, realizing very good prices.

Model Sail Boat enthusiasts
are still in the majority, but
an increasing number are devot-
ing their energies to model
power boat design and construc-
tion.

This is a much larger field
than the sail boat, as there are
such a great variety of hull de-
signs to model from. While the
propelling power could be
steam, electric, gas engine or
clockwork, the selection of the
most suitable power plant would
largely depend upon the type
and size of hull, and the work
it was intended to perform.

We shall be pleased to re-
ceive from any of our readers.
descriptions and illustrations of
boats they have built for inser-
tion in future issues of this
Magazine.

1” Scale “Pacific’ Under Diffi-
culties. Walschaert’s Gear for
A Country
Railway. Two.
Fittings. |

House Model
Dummy Locomotive
Sub-structures for Permanent |
Indoor Railways. “O” Gauge.
Locomotives. A Novel Locomo-
tive Competition. Our
Bag. Club Notices, ete.

THE MODELMAKER 35

A MODEL VIKING SHIP
By MR. H, 0. HAVEMEYER, JR.

This model was made as accurately as possible to records pub-
lished by the British Society of Nautical Research of the famous
Viking ship, unearthed several years ago.

The keel, stem and stern pieces are cut from clear oak, lined
up and screwed together. The planking, of thin pine strips, is
nailed on clinker fashion with the top plank lapping the next lower
one. The floor beams and planks are next inserted and carefully
laid down with brads. The rowers’ seats, or thwarts, twenty-four
in number, are next put in, arranged so as to leave an aisle the
whole length of the vessel. The forward and stern decks are then
fastened, being raised about 3%” in the bow and about 5%” in the
stern.

The holes for the oars are marked, re-enforcing pieces glued in
behind the bulwarks, and the holes carefully drilled. The figure-
head and tail end are carved from mahogany, and fastened to the
hull with dowel pins and glue. The small serpent designs are made
of wood and pinned fore and aft, as shown.

The heal of the mast is fitted into a block of wood, fastened
to the keel and the mast and spar erected.

The shields, 34 in number, are turned from hard wood, their
edges beveled, backs cored, and bosses left on the fronts. On each
‘shield is painted a different Norse insignia in colors.

The blocks are made of mahogany; the rudder is of carved
mahogany with a tiller handle, also of carved mahogany. The rud-
der is affixed to the ship with a brass rod.

The hull is painted a medium blue, with alternating planks a

light green. The serpent designs are yellow with black spots. The

figurehead is done in various tones of bronze and copper. The
-horse’s mouth is red, with darts ornamented like fire with yellow
and black. The tail is bronzed similar to stem piece. The entire
interior of the ship with all the fittings, spars, blocks and oars are
stained with penetrating weathered oak stain.

The sail is a piece of muslin edged with cord and painted in

stripes of yellow and red, with narrow blue bands. The streamer

36 THE MODELMAKER

is a length of tri-shade of green silk ribbon wired to hold its form.

Mast top ornament is of brass soldered to a length’of rod and
painted dull silver with black spots.

Rigging is black cord belayed in proper fashion.
finish of boat is dull, no varnish being used at all, and when swung —

The entire

from the ceiling on a wire, renders a very pleasing piece of in-
terior decoration, its principal charm being in accuracy of form.

Principal Measurements

Length overall, 32”.

Depth of Hull, bow 5”.
Depth of Hull, midship 3%”.
Depth of Hull, stern 414”.
Beam, 5”.

Height of Mast above bulwarks, 12”.

Length of yard arm, 10”.
Diameter of Shields, 1144”.

Mr. Dobler was in to see us
the other day and he informed
us he was making good progress
with his P. R. R. K. 4s 1%” scale
Locomotive. He spoke very en-
thusiastically of Mr. Coventry’s
set of drawings. The working
parts were made at different
times following the drawings
most carefully, and when he as-
sembled the finished parts they
fitted together perfectly. He
has the chassis and working
parts all finished and assembled.
This goes to show it is worth
while to make a full and com-
plete set of working drawings
before the actual construction
is commenced.

We know of several cases
where much time was lost and
considerable extra work entailed
because the Modelmaker did not
make scale drawings of the
working parts... It takes time
and calculation to lay out de-
tailed drawings, but it does pay

in the long run to do this work.
If a Modelmaker is not compe-
tent to do this work himself, it
would be much better for him
to purchase a complete set of

drawings or enlist the help of ©

some model fan who could do
this work for him. In the lat-
ter case they could either work
together on the construction of
one model or each could build
his own model, comparing nates
as the work on their models
progressed.

We have just received from
Mr. John A. Howland, of Jack-
son, Mich., a very full and in-
teresting account of the con-
struction of his
modelled after the famous N.Y.

C.R. “Number 999,” built partly —
of wood and partly of metal. He —

also sent us some photographs.

locomotive,

ee ae a ae a ee)

We shall include this article in 3

the April issue of ane Model- 4

maker.

On ae th

THE MODELMAKER 37

MODEL OF “SANDPIPER”

By MR. HARRY A. CAMPBELL

I have sent you some snap-shots of Sandpiper which may inter-
est some of the readers of The Modelmaker.
Sandpiper was built from designs by Mr. William Atkin that
were published in Motorboating. I built my model on a scale of
2” to 1’. This gave me a 60” model of a 30’ boat. There was

‘nothing very difficult in building her as all lines are straight. How-

ever, I found that the only way to start a thing of this kind is to
make full size lines and plans before attempting the framing. My

boat is framed with soft pine and planked with redwood. The

redwood I salvaged from two old tank staves. The deck and house

are oak.

| _ For power I used a “Klaxon” horn, which came from a Chevrolet.,

{
iW

‘This type of motor is especially good for boats, as it has a thrust
bearing. Five dry cells drove her four miles per hour, “Sand-
piper’ 3” tunnel stern makes a small high-speed prop Necessary,
which is the reason for electric drive.

Ma For caulking seams I found that a stiff mixture of glycerin and

red lead or litharge is really great. It’s water proof and can be

easily covered with paint. Sandpiper never has leaked.

ws
| oo
>
a

38 THE MODELMAKER

SOME
LOCOMOTIVE CONSTRUCTION
NOTES oS
By H. J. COVENTRY, Assoc. Mem. A. S. M. E.

There is probably no more discouraging experience than to
find after many hours of labor spent in producing model locomo-
tive frames, wheels, axles and side rods, that the wheels stick tight
in certain parts of the revolution. The requirements for free run-
ning are: (1) Axles must be parallel; (2) wheels must be cor-
rectly quartered, that is, the crank pins must be at right angles;
(8) center distances of side rod bushing’s must be same as axle
centers.

To attain these results it is not enough to merely work as close
as possible to respective dimensions, neither is it necessary to do
so. It is, however, more important that the axle centers and side
rod bush centers be identical.

We will assume that frames have been rough sawn out, not
forgetting to allow for the inevitable warping if cold rolled steel
is used. Straighten as well as possible and then file the top true
and straight. From this edge mark out all openings and drill holes.
The frames should be rivetted or bolted together, using any of the
holes required later for brasses, etc. Now proceed to operate on
the front jaw of main pedestal and get this square both with side >
of frame and the straight top edge; file down close to the line. —
Next make a simple gauge-like sketch, Fig. 1, which is made to
center distance of axles. Having front jaw of main pedestal true,
proceed to front jaws of the other pedestals, filing till the gauge
just goes over. Keep the gauge parallel with top edge of frame
and feel with it just as you would with calipers.

After the front faces of all pedestals are true, file up the back
face of main, using inside calipers set to dimension of jaw opening.
The backs of the other jaws can be trued up the same way, using
the same caliper setting, or the axle distance guage may be used
working off the main back face. Before taking the frames apart
it is better to drill all holes, in fact finish completely. F

Now make the driver bearings, but do not bore them, leave —
solid and fit snugly to pedestal jaws. It is now necessary to make
a simple jig for side rod centers. Take a piece of cold rolled steel,
almost any flat section will do, say %4” x %”, and on its length

J
2

THE MODELMAKER 39

| AXLE CENTER DISTRNCE. |
! a . i

| TareReo_ ,

Fic. /

40 THE MODELMAKER
OR Mae Pence ea he Usa ERT cL REL BLT
scribe a line, and from this set off the centers of the side rod
bushes, starting from the main driver, and with the dividers set to
the correct dimension step off the front, and back, or according
to the number of coupled wheels. You can, if you prefer, lay the
piece of c. r. s. on your finished frame and scribe lines, using the
front faces of pedestals as a guide for the scriber. Center punch
the points and drill same diameter as the unbushed holes in side-
rods. Mark the jig so that you will know which is the front crank
pin center, also mark whether right hand, or left. See Fig. 3.

Taxe another piece of cold rolled steel, and using the jig ciaypeum
to it, spot sink with same drills as at BM and F, Fig. 3. Take off
the jig and drill holes same diameter as bearings. You will now
have two jigs satisfying condition No. 3, axle centers will be same
as side rod centers, and whether actually a few thousandths more,
or less, than the required dimensions will not affect the result in |
the least.

Driving boxes can now be drilled. Clamp the two frames to- |
gether. Simplest way is to lay them bottom edge up on a surface 7
plate and square off through pedestals. Mark the center of main
bearing, and right here it is as well to check the distance to center
of cylinder seat. If not in agreement with drawing, shift the
center line on bearing, or compensate the error in cylinder flange
when this is being put in frames. Center punch the main bearing ~
and drill, and ream, right through the two bearings, taking care:

that the frames are well and truly supported on the drilling table. F

Now take the jig, place it on the frame, and locate with a well-
fitting pin pushed through into bearing. Be careful that you have-
the jig correctly located with hole marked F coming over front.
bearing and edge of jig parallel with top edges of boxes. Clamp
jig tight and run drill through all other bearings. a

The side rods are made in a similar manner by laying out fronil
main, drilling same, put jig on and locate with pin, clamp and drill
the eye ends. In the case of locomotives with more than a

coupled axles, fit the side rod knuckles before drilling eyes.

One more requisite is necessary to smooth running: that is the
angle which the crank pins bear to each other from side to side
must be the same throughout the whole act of wheels. It is not
absolutely necessary that the cranks be at 90 degrees; they could
just as well be 89 or 91, but it is easier for practical reasons to
make the cranks all at 90 degrees than some other angle.

The wheels should all be of the same diameter. If an error has

¥ af THE MODELMAKER 41

‘been made in any one or any one pair, turn the others down to same

_ gize.

Having the axles and wheels already, and one wheel pressed

on its axle with crank pins already in, mount on a V block and

‘clamp by the axle, adjust so that the crank pin is horizontal.

This

is easily done by setting the surface gauge to axle center and

turning the wheel round till crank pin center coincides.

A small

‘collar should be made to slip over the crank pin of other wheel.
|The outside diameter of the collar should be the same as axle

diameter in wheel seat.

Push the wheel onto the axle as far as it

will go, by hand, and as near as possible to 90 degrees slip the
collar over the pin and with the square or surface plate adjust
the wheel so that the blade of square just touches the collar and
at the same time is in line with circumference of axle.

Another method is to set the wheel and axle on the V block
at 45 degrees, using the head of a “B and S,” or “Starrett,” uni-
versal square in conjunction with the collar on crank pin.

- In setting the wheels be careful you make them with same crank

lead.

If the above procedure be adopted no fear need be had that

‘the wheels will stick, or bind, when the engine is erected.

CORRESPONDENCE

The Modelmaker:
Dear Sir:

In a previous issue of your
paper a reader asked where he
could get small brass balls.

The following kink for making.

them may interest him.

_ forming Toot ler Phaking Bronze Balls

Secure a suitable piece of tool

steel that will fit in the tool post |

of the lathe. Select a twist

3
ee
of ; Z

—s |

drill of the diameter of the ball
desired. Drill a hole through
the steel on the end and saw
the steel directly through the
center of the hole leaving a
kalf circle. The tool is undercut
and sharpened, and then hard
ened.. Center a piece of brass
rod the size required in the
lathe and with this tool you can
make as many balls as you re-
quire. (See illustration.)
Edgar L. Brown,

Greensboro, N. C.

Mr. W. H. Buckley, of Guys-
boro, N. S., has just sent us a
photograph of a_two-cylinder
horizontal stationary engine he
built from scrap material, and
it is certainly a clever little
model. He is quite a genius in
utilizing odd scraps that other
members would throw away.

42 THE MODELMAKER

PROPORTIONING THE PARTS FOR
A MODEL STEAM ENGINE

The following is a table of dimensions of a standard type of
horizontal single-cylinder steam engine, working up to 100 lbs. per
sq. in. in steam pressure.

The proportions of parts are based upon the cylinder diameter,
which is assumed to be the unit.

To find the correct size of any corresponding parts for a model
of a given size, it is only necessary to multiply the cylinder diame-
ter by the decimal fractions given.

This data should prove of interest to any reader wishing to build
a model steam engine of this type.

PROPORTION OF STEAM ENGINE PARTS
(H. Muncaster)
Piston dia., 12 ins. = 1.000:
Stroke, 18 ins. = 1.500.
Piston Rod dia., 2 ins. = .166.
Cross Head dia., 2144 ins. x 3 ins. = .187 x .25.

Crank Pin, 2% ins. x 3% ins. = .23 x .3.
Connecting Rod dia. ends, 2%, ins. = .187.
Connecting Rod dia. middle, 23, ins. = .238.

Connecting Rod length, 4 ft. = 2.66 x stroke.

Crank Shaft dia., 5 ins. = .416.

Crank bearings dia., 4144 ins. = .375.

Crank length, 6% ins. — .506.

Crank W.1., 3% ins. wide, 9 ins. boss = .3 x .75.

Valve Spindle dia., 14%, ins. = .104.

Eccentric Rod dia., taper 1% ins. to 1% ins. = .104 to .125.

Steam Ports, 5 ins..x % ins. = .416 x .073.
Valve travel, 2% ins. = .208.

Valve lap, % in. = .041.

Valve cavity, 3% ins. = .3.

Valve lead, % in. = .O1.

Steam inlet dia., 234, ins. = .23.

Exhaust outlet dia., 344 ins. = .3.

Flywheel dia., 5 ft. = 5.0.
Flywheel rim, 6 ins. square in section — .5.

THE MODELMAKER 43

THE BOYS’ STEAM LOCOMO-
TIVE CLUB

Forest Hills, L. I.

Dear Sirs:

Please renew my subscription
to the ‘“‘“Modelmaker’” for the year
1926 for enclosed $1.00.

The club is very much inter-
ested in the Modelmaker, espe-
‘cially the articles on model lo-
comotives, and we think that
‘both you and your contributors
‘deserve great praise.

_ Three weeks ago some mem-
‘bers of the club, including my-
self, visited Morris Park Yards
for our fifth trip there. They are
the property of the L. I. R. R.

The men down there were
very kind to us, just as they
always are, letting a man take
us all through the yards and
shops. We started out by going
over to the coaling stage where
the coal is brought up on an end-
less belt, then we went to the
sand drying house where the
sand is put on pans around fur-
naces and when it is dried it is
put into the sand bunkers. From
there we went to the ash pits
and graveyard where all the old
locos are stored before breaking
up. Near by were two 4-6-0’s,
one of which is the L. I.’s fast-
est loco. making the run from
Patchogue to Jamaica in 40 min-
utes, the distance being 50 miles.
From there we crossed the
yards to the turntable and went
all through the roundhouse out-
side of which a locomotive was
being cleaned of dirt and grease
by means of a long nozzle
through which hot water was
shot. We then went through
the main shops from beginning
to end. Starting at a locomo-
tive which was stripped down
to the frame, then working up

to one that was nearly read'y for
the road. This shop is the main
repair shop of the Long Island
Railroad. In there they make
all sizes of bolts, repair tenders,
boilers, and all general repair
work. We saw a tender cut open
and got a fine idea of how it is
braced in the water tank to re-
sist the water pressure. We
also saw a locomotive with the
smoke-box door off and men
working in the smoke-box. From
there we went to the flue shop
where they were knocking scale
from the flues. We also saw
them tapering the ends of the
pipes while red hot and in other
words getting the raw material
ready for the locomotive and
making the old ones fit once
more for service. This com-
pleted our finest trip and we
were much the wiser when we
reached home than when we left.

Thanking you in advance, I
remain,

Yours truly,
BILL NEISEL,

56 Tennis Place,
Forest<Hills; Li I. N.Y.

The Gerold Co. report they
have had a very busy three
months, during which time they
have filled many orders for the
Wade Lathe, and have also sup-
plied many complete sets of
fittings and odd parts. Our
readers are beginning to appre-
ciate the fact that this compact
little tool is the ideal lathe for
model work.

Mr. Frank Birch of Detroit is
building a Pacific Locomotive
and expects to have it completed
shortly. He has patterns for lo-
comotive drive wheels from ‘“O”’
to % in. gauge.

44 THE MODELMAKER ae
-

Model Engineer, principal
contents of Volume 42: Design
for an Outboard Marine Petrol
Motor. Model Railway and
Locomotive Matters. Model Ma-
rine Notes. Some Attachments
for a Lathe. Modern Machine
and Hand Tools. A Model Beam

Engine. New 4—8—0 Type Tank
Locomotive. 13 Ft. Windmills.
Model Engine Building. Punch-
ing and Cutting Tools. A Model

Power Boat Steam Plant.
10-Rater Miodel Yacht. 2%”
Gauge Steam Railway. Con-

struction of Rolling Stock for
*O” Gauge Railway. Overtype
Steam Engine. A French Model
Locomotive. A New Design for
an Electrically - driven Clock.
Model Power Boat Rob Roy.
Model of Parson’s Steam Tur-
bine. A Small Milling Machine
Attachment. Three-cylinder Sim-
ple 4—6—0. Canadian Railway
Bridges. Models at South Ken-
sington Museum. Description of
Stewart Turner’s Factory. M. E.
Lathe Competition. A Six-foot
Windmill. A Five-foot Model
Yacht. A 4—6—0 Locomotive
for India. Three-cylinder Simple
Steam Engine for Model Power
Boat. Clockwork-driven Loco-
motive. Model of a Ford Truck.
Model Sail and Power Boat Ex-
hibition. Precision Work. De-
scription of the Eskdale Rail-
way. Universal Cutter Frame.
Petrol Hydroplane. A Built Up
Four-jaw Chuck. Further De-
tails of a 13 Ft. Windmill. A
Compound Slide Rest. An Elec-
trically-driven Model of the
S. S. Australian. Drummond
Brothers Works. Design for a
Built Up Model Horizontal
Steam Engine. Model L. & S.
W. R. Hlectric Coach. ‘The Con-
struction of a Small Fishpond
and Fountain. A Tele-rainguage

at Work. Model Steam Engines
and Boilers. Electrical News
and Notes. Practical Letters
News of the Trade. Society
and Club Doings. Title and In-
dex. 524 pages, price $3.00 ig
numbers.

CLUB NOTES

The New York Society of Mod-
el Engineers was organized on
the evening of March 9th at
15 Moore Street, New York.
Mr. A. A. Singer was elected.
Secretary. It was arranged to.
hold regular meetings the second
Tuesday of each month at 8 P. M.
at the above address. The next.
meeting will be held on bee
13th. There were quite a num-
ber of enthusiastic Modelmakers
present. Mr. T. Bray showed
some models he had made of
stationery engines and Mr. F. D.
Grimke exhibited two “O” Gauge
Locomotives. The models were
much admired for their excellent
workmanship. Any reader wish-
ing to become a member should.
write to Mr. A. A. Singer, Secre-
tary, 15 Moore Street, New York
City. Therd are a great many
Modelmakers residing within
easy distance of New York and
there is no reason why this club
should not grow into a big or-

ganization. 4
:

Akron, Ohio. We have just
received a communication to the
effect that a group of Model-
makers in this city have formed
a Model Engineers Club. They
have already had three meetings,
We hope that all our readers ing
terested in this work living
within a reasonable distance oa
this city will either write or
call upon Mr. R. W. Jacobs, the
Secretary, 115 North 16th ne
Kenmore, Ohio, for full particu-
lars of membership.

THE MODELMAKER 45

| Model Railway News. Con-
tents for March, 1926. Notes of
the Month. What We Want. In
Praise of Two-inch Gauge. A
Super Detail Gauge “O” Model.
Locomotives of the “OO” Gauge
West Midland Railway. Sketches
in Hlevation and Plan Showing
the Extension to Mr. G. S. Rees’
Garden Railway. Model Three-
ton Open L. N. E. R. Fish Truck.
A Suggestion for a Pressed
Metal Keyed Chair. A Busy
Station. H. A. G.’s Layout for
his “O”’ Gauge Model Electric
Railway. Mr. S..M. Hunter’s
Model 4—4—0 Midland Railway
Locomotive. Our Mailbag. Ques-
tions and Answers. With the
Clubs. For Sale and Exchange.

' Mr. Roy Ashley of the Ameri-
can Model Locomotive Co., San
Francisco, Calif., is building up
quite a nice connection. There
seems to be quite a number of
model fans in this sunny state.
Some of them are trying to get
sufficient men together to form
a good live Model Engineers
Club. We shall be very pleased
to help in any way we can by
inserting notices in the Model-
maker.
Mr. James H. Koch, 103 Sum-
mit Ave., Linwood, Pa., writes
us that there are quite a num-
ber of young Modelmakers in
his vicinity and they often get
‘together to help one another.
All of our readers who are living
within a reasonable distance of
‘Mr. Koch should get in touch
‘with this gentleman if they have
not already met him. He is a
fetchmaker by profession, but
a Modelmaker by choice. Hav-
ing a well equipped workshop
m his home he is in a position
‘help any Modelmaker who

lacks the facilities for doing dif-
ficult machine work. Here is
a good opportunity for the form-
ation of a Modelmakers Society.

At the annual meeting and
dinner of the Montclair Model
Engineers Club, Mr. E. T. Judd
was elected president and Mr.
J. B. Rettallack of 65 Dunnell
Road, Maplewood, N. J., was
elected secretary and treasurer.
Those present had a very enjoy-
able evening and are. planning
considerable activities for the
coming season.

The Gerold Company advise
us that very shortly they will
have ready for the market an-
other addition to the celebrated
WADE line of tools. The latest
addition is a small power driven
bench drill. Combined with the
WADE lathe and a small bench
grinder this offers the model-
maker an almost complete home
shop for handling all sorts of
jobs.

Mr. A. A. Singer had another
enthusiastic meeting of Model- —
makers at 15 Moore Street, New
York, on the evening of March
9. They are making good prog-
ress towards the formation of a
real live organization in the in-
terests of Modelmaking. We
wish them every success.

The Model Engineer, princi-
pal contents for January 7, 14,
21, 28: Model Engineers and
Their Work. Mr. W. G. Cor-
ner’s Four-cylinder Triple Ex-
pansion Marine Engine. The
Bed of Small Lathes and Their
Fittings. Model Bell-crank En-
gine. L. B. S. C.’s Column of
Live Steam. Peculiarities of
Pumps.

46 THE MODELMAKER

WHAT'S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters of

figures count as words,
accompany copy.

compound words as separate words.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE
Castings and Drawings, for
Atlantic, or Pacific, Locomo-

tives; Passenger coach trucks;
Freight car trucks and Boiler
Fittings; all 4% in. scale. Atlan-
tic Steam Locomotive, % in.
scale, $275.00. Photo 10 cents.
Preliminary list 2 cent stamp.
One-horse electric motor, direct
current, new, $25.00. Frank
Birch, Highland Park, Mich.

Blue Prints of Ships for
Miodelmakers, send for circular.
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Gears and Model Supplies of
every description, catalogue 5
cents. Experimental Supply
House, Box 10, Station Y, New
York City.

Morgan twenty-foot glider
parts. Precision machine work
for models a specialty. F. W.
Icken, Morsemere, N. J.

Bench Drill—Build your own.
Complete working drawings,
24 x 36 in., postpaid $1.00. Free
list of Modelmakers Supplies.

P. W. Cornelius, 2457 &.
Washington St., Indianapolis,
Ind.

Locomotives. I can supply di-
mensions for American Locomo-
tives. Crater, 458 Colonial Road,
Roselle Park, N. J.

High Class Imported Lathe,
with milling, gear-cutting and
grinding attachments; overhead
motion, by Drummond, England.
Numerous chucks and accessor-
ies. Complete machine shop in
itself. Cost over $700 last year,
scarcely used. Price $250.00 for
quick sale. Seen working by
appointment. Hamilton Church,
The Old Parsonage, Sharon,
Mass. }

4
Model Railroad Cars to scale
to order. John Woollven, a

port Richey, Florida.
WANT TO SWAP i
New (shot only 20 times) L. C.
Smith double barrel, 20 ga. shot
gun, and practically new Ship-
man-Ward rebuilt depen |
typewriter standard size —fo
Bench Lathe. Either Gerold #2
or Watsons’ Baby Grand |

gether with all accessories. Mus
be in #1 condition. Address,

BK. B. Hanby, Coal Valley, Ala. |
i

WORK WANTED

I make patterns, small cast.
ings and working models. Mode
making is my trade. James Koch
103 Summit Ave., Linwood, Pa.

Models

' Engrs.
_ Modelmaker.

THE MODELMAKER

‘WANTED

A Full Size Drawing, with all
dimensions of Baker Valve Gear
for 1%” scale, coal-fired, working
model B. & O. Mountain 4—8—2
Type Locomotive. Bore 11/16”,
Stroke 1%”. Length of main
rod 5 5/16”.- Send estimates
for drawing and setting gear.

Address H. O. Havemeyer, Jr.,

25 Broadway, New York City.

Models, Railways and Locomo-
tives, back nos. and Vols. in
good condition. Box 10, Model-

maker.

Everyday Mechanics, Nos. 1 2
and 6 of Vol. 1, Nos. 1 2 and 3
of Vol. 2. Box 2, Miodelmaker.

American Institute of Elec.
Volumes 1 to 8. Box 4,

Electric Motor Stampings.
Small sizes suitable for electric
motors for model locomotives.
Modelmaker, Box 10, 120 Liberty
Street, New York.

THE NAMES AND AD-
DRESSES of the Secretaries of
U. S. and Canadian Model En-
gineer Clubs and Model Yacht
Clubs, address Modelmaker, 120

Liberty Street, New York.

Parts Lathes
Domestic — Imported

A. Alexander Singer
15 Moore Street
New York City
Enquiries Invited

‘Please state in detail what you are
interested in.

st 1S or

EXCHANGE

Railway Centenary;
of Models & ‘Tractive Power
Chart’s both in Cylinder &
Wheel Diameters, etc. For back
Nos. of Model Railway News,
with November and December
included, 1925, Charles LeRoy,
Dovetail, Montana.

Theory

FOR SALE

Rough Sketching; The Han-
dy Sketching Book, consisting
of sectional ruled paper, plain
eight squares to the inch, with
some useful tables, size 5 x 8,
bound in limp card to fit the
pocket, price $.35, Spon, 120
Liberty Street, New York.

A BC of The Steam Engine,
describing a high speed single
cylinder, double acting, hori-
zontal steam engine and auto-
matic governor, with large
drawings, price 35c. Spon, 120
Liberty Street, New York.

Railway Centenary — 1825-
1925, being an exceedingly in-
terested historical account of.
the British Locomotive, cars,
and signalling apparatus during
a hundred years of develop-
ment, with many illustrations
and some larger colored plates,
124 pages, 11 x 8%” paper bind-
ing, $1.60 postpaid. Spon, 120
Liberty Street, New York.

Practical Manuals, fully illustrated,
stiff covers, 75 cents each:

Violin Mal:ing and Repairing.
Practical Engraving on Metal.
Model Sailing Boats, build and rig.
Beginners Guide to Carpentry.
Beginners Guide to the Microscope.
Practical Bookbinding,

Induction Coil Construction.
Dynamo and Motor Construction.
Workshop Wrinkles and Receipta.

SPON & CHAMBERLAIN
120 LIBERTY ST. NEW YORK

48 THE MODELMAKER

MODEL SLIDE VALVE MARINE ENGINE

14” bore, $12.75, or 54” bore, $15.75. Be sure to
power your boat with a Bathe steam engine
and boiler model. We are builders of working
model engines and boilers of many types. We can
supply you with a power unit that will meet the
requirements of your particular model boat. Boiler
fittings and Model Stearn line fittings. Special
work. Illustrated catalogue, 20 cents.

BATHE MANUFACTURING CO.
Dept S, 5214 Woodland Ave. Philadelphia, Pa.

TRIPLE X comsrnation 0, GAUGE

Vulcan Freight Trucks. (Finished.)
$3.50 per pair, castings $1.75.

Lathe Milling and Drilling Machine Six-wheeled Passenger Trucks. $7.00
per pair, castings $3.00.
IDEAL " SCALE
FOR Vulcan Freight Truck castings, $3.00
per pair.
MODEL Six-wheeled Passenger Truck cast-
Ww RK ings, $7.00 per pair.
O Small cylinder drain cocks, $1.75 per
Sodas pair.
Small’ Hexagon Bolts, American
SEND FOR pitches, 40 cts. per dozen.
CATALOGS Quick Service. List 5 -cts.
FREE FRANK BIRCH

TRIPLEX MACHINE CO. Gen. Del. Highland Park, Mich.

86 Church Street New York City

MODEL MACHINERY

Sole U. S. Agent for the noted Eng-
lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasoline,
Gas Engines, Boilers, Fittings and
Trimmings; Blectrical Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “CABLE SERVICE.”

Capacity: 4” dia. x 12” length.

Turning, Facing, Boring, Drilling,
Winding, Thread Cutting
No. 1 Plain Machine ase above ........$23
No. 2 Back-Geared, Screw Cutting $58.

Alfred Paul & Son, Engineers

: 38 Ashland Street
Melrose Highlands, Mass., U. S. A.

SEND FOR FREE 16-PAGE
CATALOG

Shows full details and accessories

Catalogue 25c, Coin or Post Office Order
Advices and Suggestions Cordially Given

THE GEROLD CO. (Dept. M8) _
120 Liberty 8St., N. Y. 2
THE MODELMAKER Pe

BOUND VOL. I. 1924. $1.60 :

or return your numbers to us with $1.10 and we will mail you a new bound copy. 5

BOUND VOL. II. 1925. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy..
We still have a few copies of Nos. 1, 2, 8, 4, 5 of Vol.-I. Price 10c each.

We still have a few copies of Nos, 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. 2
Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

FOR THOSE
INTERESTED IN MAKING

WORKING MODELS:

Vol. Ill, No. 4 April, 1926 10 Cents

MR. W. G. LANDON’S
4” Scale Locomotive (see p. 59)

THE MODELMAKER

Pre as ee

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol. Ill.

No. 4.

“Entered as second-class matter Mar. 27, 1925 at the Post Office at
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

The many letters we have re- -

ceived in the past twelve months
from readers wishing to be put
in touch with other Modelmakers
in their vicinity is a clear indi-
cation of the growing interest
being taken in this delightful
pastime.

Here is where the Club fea-
ture looms up strong, the band-
ing together of little groups of
men with similar interests for
their mutual benefit, with a
meeting place where members
can exhibit and discuss their
models and where the begin-
ner can get help and practical
suggestions from the older and
more experienced Modelmaker.
A’ community of interests that
creates enthusiasm and encour-
agement.

There are a number of well
established organizations, viz.,
The Canadian Model Engineer-
ing Club, of Toronto; The Chi-
cago Society of Model Engi-
neers; The Montclair Model En-
gineers Club; The Boston So-
ciety of Model Engineers; The
Brooklyn Model Yacht Club;
The Detroit Model Yacht Club;
The Toledo Model Yacht Club;
The Central Park Model Yacht
Club, and The St. John’s Model
Boat Club, N. B., Canada.

Last Fall a Model Yacht Club
was formed in Providence, R. L.,

and we understand there is a
similar organization in Washing-
ton; -D.2G3

Several new clubs have recent-
ly been organized.

Mr. R. W. Jacobs and some
friends have formed the Akron
Association of Model Engineers.

The members meeting at each |

others homes. They are mainly
interested in steam and electric
locomotives.

Mr. A. A. Singer and a num-
ber of enthusiasts have organ-
ized the New York Society of
Model Engineers.
meeting night
Tuesday in each month.

Both of these new clubs have

a number of likely prospects —
from whom they expect to get

additional members.
Mr. J. H. Koch of Linwood,

Pa., has become acquainted with —
a number of young men inter-

ested in this work and they hope
to be able shortly to organize
into a real active club.

Mr. Bill Neisel is sponsor for

The Boys Steam Locomotive
Club of Forest Hills, Long
Island, N. Y.

The Elverson Speed Boat Club
of Jersey City, N. J., hopes to
be quite active this summer.

Mr. Volney F. Crouch of Rose-—

burg, Ore., has found several en-
thusiastic Modelmakers

‘Aen

Their regular |
is the second —

and

a ee Tee

THE MODELMAKER 51

they hope to get enough new
men interested to form a Club.
There are also some small
groups of men in different parts
of the country who are meet-
ing at each others homes.
Besides the Clubs we have spe-
cified we understand there are
others whose Secretaries have
not yet favored us with their
names and some particulars of
their organization.
We shall be glad to hear from
the Secretaries of any of these
Clubs and to. help them in any
way we can to increase their
membership, and extend their in-
fluence in their chosen field.

While it is true that there are
numbers of Modelmakers doing

BOOK REVIEWS

Interior Wall Decoration, by
F. N. Vanderwalker. 451 pages,
fully illus., 74% in. x 5 in., limp
cloth, $4.00.

This work shows Practical
Working methods for plain and
decorative finishes, new and
standard treatments. New ar-

‘tistic and the novelty finishes;
color stippling; glaze colors, Tif-
fany blending and mottling;
spatter work; plaster staining;

sand float; sponge - stipple;
Spanish palm finish; Roman
travertine; Old English; Hol-

jJand; French Caen Stone; Ital-
ian plaster and other aritstic
rough textures; decorative wall
panels; plain painting jobs
and calcimining methods; hang-
ing wall fabrics. Tools and ap-
pliances. Spray gun decorative
finishes, the use of the spray-
gun. Index.

_ A very excellent and practical
guide book written in good Eng-
lish and profusely illustrated.

their work unaided, and doing it
well, there are many men who
would gain much by being a
member of an active organiza-
tion that helps its members to
persevere and to aim for the
highest perfection in their work.

Every reader of the Model-
maker can help in the develop-
ment of American Modelmaking
by joining one of the existing
organizations or by getting in
touch with one or more men in-
terested in this pastime and havy-
ing an occasional meeting in the
home. An experienced Model-
maker can often help and en-
courage a novice and by doing
this he is helping the good work
along.

We have just received an ad-
vance circular giving a short de-
scription of a new book entitled
Ship Modelmaking by Captain
BE. A. McCann. It will be pro-
fusely illustrated with scale
drawings. We believe this book
will interest a good many of our
readers and as soon as it is pub-

lished we will give fuller par-
ticulars.

The Model Railway News con-
tents for April: A Model “Gar-
rett” Type Loco. Result of the
Popular Locomotive Competi-
tion. The St. Lawrence Model
“O” Gauge Electric Railway.
Scenic Effects. Model Railway
Signalling. Construction of an
“O” Gauge Model Railway. An
Australian Gauge “1” Model
Electric Railway. An Outdoor
“O” Gauge Overhead Electric
Line. Our Mail Bag. Queries
and Replies. Sale and Exchange,
Etc.

52 THE MODELMAKER

SHIP MODELS

At a recent sale of Ship Mod--

els and Marine Antiques at An-
derson’s Gallery, in New York,
a very fine antique model of a

Spanish Galleon of the early six-
teenth century was sold for
$3,750.00. It had been found in
an ancient church near Burgos,
in Spain, where it had been pre-
sented as a votive offering by
some early Mariner before start-
ing on some perilous voyage.
Models of this period are very
rare. It measured 54 inches 0.a.
And was about 50 inches from
truck to keel.

A Model of a British Frigate
made of bone, by some of the
imprisoned seamen at Dart-
moore, between the years 1790
and 1820, brought $1,250.00.

A Model of the U. S. S. Fri-
gate Constitution brought $630.

A Model of the American
Whaling Bark Lagoda of New
Bedford another bone model,
fetched $425.00.

A Model of a Spanish Frigate

of the eighteenth century was,

knocked down for $390.00.

We have no doubt that the
above Models are fine examples
of their periods, and the high
prices paid for them is evidence
of the growing popularity and
demand for real ship models for
ornamental purposes.

Mr. Frank Barchard, Jr., of
The Onlooker, Foley, Alabama,
is at work on an “OQ” Gauge
Pacific Locomotive. He would
be very glad to hear from any
of our readers who have built
one of this type of Locomotive
as he is rather new at this bus-
iness. Any hints or practical
suggestions would be very much
appreciated.

The Model Engineer, principal
contents for January 14, 21 and
28 omitted from page 45 of last

issue.
Spindle For 3-in: Lathe.
Krauss ‘Pacific’ For the 15-in.
Gauge Munich “Lilliput”
way. Model Marine Notes. An
Electric Horn. A Small Heating
System For the Workshop. Small
Sheet Metal Pressings.
ing Surfaces of Lathe Slides. A
Built Up Beam and Flywheel.

A Milling and Drilling —
The >

Rail-

Bear- :

Locomotive News and Notes. A )

Foolproof Lock For Motor Cars.

Experiments on the Design of —

Steam Whistles.
Using Hand Reamers.

The Art of |
.Con: ©

struction of a Tractor Seaplane —

Model.
Small Boilers.
For Sheet Metal. February 4.

Method of Making Small Wood-
en Pulleys.
l-in. Scale Locomotive Chassis

With Cylinders and Valve Chests —
1-in. Scale a :

in Half Section.
6—4 Tank Locomotive.
T. Griswold’s

Mr. H.
Workshop. aaa

Working Model of.

Pressure Gauges For
A Cutting Gauge

Model Of His Old Sailing Ship. 4

Recent Inventions. Light Engi- —
neering, _“L. B. S. ©.” On Loco-~
motive Boiler Construction. —
Queries and Replies. Practical

Letters. Society and Club
Doings. : :

Mir eae Dobler 470 Senator —
is mak-
ing a very fine job of his Cov-
entry 2%” gauge P. R. R; Ke:
He
would like to silver solder the
boiler and would be very glad
to hear from any of our readers
who are familiar with this kind i

Street, Brooklyn, N. Y.

4s 1%” scale Locomotive.

of soldering.

THE MODELMAKER 53

A UNIQUE LOCOMOTIVE MODEL
4-4)
By JOHN A. HOWLAND

It is doubtful if the construction of a model was ever undertaken
_ with less pre-determination as to what it would be when finished,
or less intention to finish anything.
The elements entering into its inception and growth being a
“sharp knife, a nice piece of wood and some spare time. First
result a crosshead and there would, probably, have been no further
growth except for a question from my wife as to “Why don’t you
whittle out an entire engine’? That started the performance and
piece followed piece until the end. So, like “Topsy,” the model
“just growed.”

About that time Mr. Jas. Buchanan, S. of M. P. of the N. Y. C.
'R. R. brought out the famous high wheeled, high speed eight wheel-
er “No. 999.”

-I saw this magnificent machine when she passed through Jackson,
-Mich., en route to the World’s Fair, at Chicago, and a little later at
that Exposition where she posed as the star attraction of the Trans-
portation Exhibit of locomotives.

Up to that time I had never seen a locomotive that could com-
pare with the “999” in beautiful proportion or elaborate finish, and
these influences determined the type and dimensions of my model.

The pilot coupling bar was nickle plated as were also the bell,
driver brake triple valve body, in fact everything usually seen in
brass was nickeled as well as some of the iron and steel parts—
even her frames. The planished iron jacket extended to front end
of smoke arch and the short, straight, stack was jacketed with the
same material, a piano finish on interior of cab, and the paint work,
striping, numbering, lettering, etc., was the work of an artist. The
huge drivers 871% inches in diameter extended through the run-
ning boards and were covered with low wheel housings. The height
of the engine deck and correspondingly high tender frame necessi-
tated the use of extra large tank wheels and these were spoke
f centre wheels.
& In every line she looked the sleek, clean-limbed, capable racer
and her looks were not deceiving. I believe her record of 112.5

54 THE MODELMAKER

miles per hour still stands—for a locomotive. She was the clipper
ship of the locomotive world and to those who may differ, from hav-
ing seen the engine in the N. Y. C.’s “Service-Progress Special,” I
would say, you have only seen the clipper after being stump-masted,
and relegated to the coal-carrying trade.

I only wish the model herewith described was a faithful replica,
in all details of that wonderful engine. The principal dimensions
and general appearance are those of its prototype though the
shape of some of the superficial features was changed to correspond
to Michigan Central practice, as it was at that time, and these
changes I now regret as they make the model a “Man Without a
Country”’—representing, faithfully, neither the “999” or any Michi-
gan Central engine.

Note of the principal changes mentioned shows the pilot slats
arranged horizontally instead of vertically, a “bootleg” type stack
instead of a straight jacketed one, dome and sand box casings differ-
ent shape. Account of overhead clearance the radius of curvature
of the “999’s” cab roof was shorter than usual to bring the edge
(or eaves) lower. This lowered the whole side of cab and with
it the running boards which had openings for tops of drivers with
wheel housings. With Michigan Central curve of roof the cab and
running boards of the model are a little higher, allowing latter to
clear tops of wheels. The body of tender is higher and the wheels
are. solid instead of spoke centred. The lettering is M. C. R. R.
instead of N. Y. C. & H., and the number 527 is that of the first
4—6—0, or ten wheeled, passenger engine produced by the Michi-
gan Central. ‘

GENERAL SPECIFICATIONS—ENGINE

Length—Overall, 551%”.
Height—From rail to top of stack, 144%”.
Wheel Base—Engine truck, 55%”.

+ ** —Driving, 8”.
—Total of engine, 2136”.
“ *“ —Tender truck, 4%”.
x “ —Total of tender, 154%”.
—Total engine and tender, 45144”.
Wheel Diameter—Engine truck, 2 13/16”.

os s —Drivers, 714”.

oe aS —Tender, 2%”.

Valve Gear—Stephenson link motion complete, of brass, and mov-

ing the engine, or reverse lever, produces the corresponding mo-

tion in the valve stems.

Bie

THE MOCELMAKER 55

GENERAL DESCRIPTION
Excepting the valve gear, boiler accessories in cab, truck frames
and some small things such as hand rails, oil pipes to steam chests,
etc., the material used was wood. Work in wood requiring a lathe
was done on a machine of the “Lathe and Scroll Saw” variety.
Aside from the wheels, dome, sand-box, stack, air pump and reser-

_voirs, the work in wood was by the jack-knife route—occasionally

a little plane, as for pilot frame, running boards, etc.

Pilot, cherry wood, frame built up and mortised together with
brass angle plates bolted to bottom corners. Coupling bar (or
“push bar’) on pilot turned and carved of cherry and coupling bar

casting carved of same wood. Pilot beam, headlight and shelf,

stack, bell, bell standard, sand-box, dome and running boards of
cherry, as are the main and auxiliary reservoirs, boiler checks and
air pump. Boiler checks and air pump are jacketed with plan-
ished iron held by white metal bands.

Boiler is white pine hollowed out, but leaving a half-inch shell to

take fastenings, and jacketed from boiler head clear to front end
of smoke arch; jacket bands held by clamps and clamp bolts under-

neath. Stack is hollow, bolted to smoke arch, and will “smoke” if
smoke is made in fire-box, or front end. Bell standard, sand-box and
dome have dowels that fit snugly into holes in the boiler, and the
boiler jacket iron fits neatly around bottoms of these. The bell is
of cherry, gilded, hollowed, and its “tongue” balances it about
right.

All engine truck, driving and tender springs, spring hangers and
equalizers are wood, and the springs show the spring bands, leaves,
ete. Engine truck and tender truck centre castings are turned of

' cherry, and their journal boxes and pedestals are carved of it.

Dry graphite provides nicely for the lubrication of wood bearings.

The cylinders, steam chests and saddle were jack-knifed from
a solid pine block; top of chests corrugated to prevent slippery
foothold, and same applies to sand-box steps. Motion plate and
guide yokes of that same famous cherry, and smoke-box door ring

turned up of whitewood to exact shape and has turned brass number

plate and curved handrail.

Headlight carved out of solid block, hollowed out—chimney and
all, and has block tin reflector.
_ The engine truck wheels and axles were turned up integral, and
spokes—12 to each wheel—worked out with knife, small carving

THE gd ubadashitestae 57

gouge and little files, and all smoothed, of course. Driving wheels,
| ‘rock elm, turned and faced from slices sawed off the ends of wagon
“hub material, 20 spokes in each wheel. The rims, flanges, etc.,
turned to proper shape, and the crank pin bosses, counterbalances
and spokes worked out in same manner as engine truck wheels.

_ There are no corners or roughness, every spoke being smoothly
elliptical, and any wheel would serve as a pattern for a casting.
Hickory driving axles turned, fitted, driven, keyed and glued in
- wheels (the only place, aside from window sashes, where glue was
used); other fastenings are bolts and nuts. Hickory crank pins
and cherry driving boxes; fluted, or channeled, main and side rods
are of hard maple, and cab is whitewood.

- Cab windows are glass (not mica), and sashes built up of maple
_veneer. Those in front of cab—the hinged ones—are paneled below
the glass.

A feature that adds greatly to the attractiveness of the model
is the bright finished parts in brass. All rod and guide cups are
of. this, and in size and shape are to scale. Valve stem exten-
| _ sions on front of steam chests, flag holders, or sockets, on ends of

pilot beam, hand rails and standards—the rails tipped with orna-

mental balls made separately and screwed into ends of rails—a
brass chime whistle on side of dome, and boiler accessories in cab,
such as throttle-box—or steam turret—extending through front of
cab into base of dome casing and having on its inner end the
_ throttle stuffing-box and bracket, with three gauges—steam, air
and coach heater, and the throttle lever and curved slide rest.
_ The reverse lever is complete with its latch, latch spring, trigger

3
and links, and two bar quadrant notched for close cut off; a per-
fect model of a Westinghouse D-5 Engine brake valve, and an
equally perfect Nathan sight feed lubricator. These two latter, if
"plated, would be just right for watch charms; they, as well as
ee whistle, gauges and other brass parts requiring a lathe, were
roduced by a model maker, a good friend who took much interest
in my little engine.
The fire door is built up of metal with hinges, spring latch and
“combustion openings, and has door chain from latch to cab roof,
chain provided with coil spring—the very common handhold for
protection of fireman’s left hand in the almost continuous perform-
ance of opening and closing the fire door for every scoopful of coal
| —in this case the spring is smaller than a straw. The cab roof
ventilating trap has adjusting rod and thumb nut,

58 THE MODELMAKER

DESCRIPTION OF TENDER |

The tender is a pine block, hollowed to reduce weight, and
metal sheathed all over—coal pit and all—and with flange around
top with 144-round finish (of brass wire) on upper edge. Sheathing
fastened to body with pins (with heads an inch to the foot!),
thereby giving the rows of proper sized rivets.

Manhole, with hinged cover, on top at rear end; two tank boxes
with hinged covers—one on each side—for the spare tools, jack-
screws, extra air hose, etc. Just in front of the left tank box is
the small one for ice and the water jug, and the jug itself—an
inch to the foot and about the size of a thimble—is in the box.
The coal gate is built up of wood, as they were then, two uprights
with horizontal slats. Tender frame is wood with the heavy end
sills—or buffer beams at front and back, and on the latter the draw
bar casting with curved buffer. This “casting” and buffer were
built up of %” iron plates, some bored for dowels on others, and
all riveted together. The tender wheels are cast iron with steel
axles. Wooden ones were turned up, same as for engine truck,
but the job of carving the spoke centres in eight wheels looked
too big, so a pattern was made of a solid wheel, castings procured
and lathe finished.

The tender trucks are fitted with the regulation brake rigging—
wooden brake beams, brake heads and shoes. The auxiliary reser-
voir and brake cylinder are wood, the latter with brass piston rod
connecting to usual horizontal equalizing, and truck levers, and
brake rods, and all shoes will come up to the wheels by a pull on the
hand brake rod. The auxiliary reservoir has a brass triple valve
body as complete and true to scale as the lubricator and brake
valve already mentioned as being in cab. Tender steps, iron, with
wood “treads.” Brass hand irons on front of tank and back of cab;
metal apron between engine and tender, and iron ladder up back of
tender.

The finish is black—several coats of black paint and varnish.
The lettering and numbering, which shows up poorly in the photos,
though really one of the crowning features, was done with artist’s
oil colors and little camels’ hair brush. The form, size and colors
were standard on the Michigan Central at that time; colors are
a rich yellow with red shading.

Inspection is usually followed by the query, “That’s a real work-
ing model, isn’t it?’ and “How long did it take to make it?” When

THE MODELMAKER 59

‘told, “Spare time off and on for 10 years, though not by any means
continuous spare time,” the rejoinder is, ““‘How could you ever have

had the patience?” etc.

When I look back at the time, labor and patience expended—
enough to have completed several working models—I wonder if
there was no fool-killer at that time, or if he missed me accident-
ally. But, even so, I take some pride and satisfaction in the re-
sult, and do not regret the necessary effort.

A PECULIAR FRENCH MINI-
ATURE LOCOMOTIVE

Mr. W. G. Landon sends us
the following article and a
sketch which he thinks will in-
terest our readers. “T have
often thought that French Me-
chanical Engineers must have
for their motto “Try to make
_two parts where only one suf-
‘ficed before.’ I could give sev-
eral illustrations of the Wal-
schaert gear as applied to loco-
motives where numerous use-

less parts have been added, but
that is another story.

The subject of this article was
seen at a fair in France about
15 years ago. The locomotive

was a 2—4—0 type about 20”
gauge and hauled passengers on
a circular track about 40 ft. in
diameter. The peculiarity of
this design was that each axle
was set radially to the centre
of this circular track. This in-

_ volved side rods of different

length as well as knuckle joints.
Theoretically this was a poor
arrangement and practically the
engine would have run all right
with parallel driving wheel ax-
les; or as the load was light, a
single driver would have met
the requirements. Probably
the outside wheels were larger
than the inside to compensate
for the difference in length of
rail. The French are nothing
if not exact. However I did not
have an opportunity to measure
them with 24” wheels the differ-
ence would have been about 1”.

4” SCALE LOCOMOTIVE
By W. G. Landon

We have just received from
Mr. Landon a photograph of his.
Locomotive at the present time,
showing how much work he has
accomplished. (See illustration
on first page of this issue.) On
page 25 of the February issue of
The Modelmaker is a_ pretty
good description of the construc-
tion -of this model. It certainly
looks like a very nice piece of
work and we have no doubt that
when Mr. Landon has it finished
he will be well satisfied with its
performances. He certainly de-
serves great credit with the way
he has persevered after so maly
interruptions. We wish him
every success in his work.

ae & + t Dy au Mer a . Bia ’
- i oD 4 -

60 THE MODELMAKER

MODEL PACIFIC
LOCOMOTIVE

By Cecil G. Hamilton
Please find enclosed snapshot
of my model Pennsylvania Loco-
motive (as far as it has got). I
am using Mr. Coventry’s cast-
ings and they are really very

scale

34"
Pacific Type K4S used by the
Pennsy for main line passenger

good. The model is

service. I am working on this
class of Locomotive almost every
day and have all the details off
pat, which helps quite a lot.

It will be noted that the @ylin-
ders are built up of steel, this in

Mr. William Wilson, 140 23rd
Avenue, San Francisco, Galif.,
would very much like to get in
touch with any Modelmakers in
California with a view to the
formation of a Model Engineers
Club. At present time he writes
he is very much interested in
the construction of Model Steam
Boats. We know there are a

my opinion being better than the

casting. Just at present I am
carrying out a series of experi-
ments with main and side rods
in maleable cast steel; this, I
think, being an easier way than
hacking them out of a steel bar,
and then it is not necessary to

have the flutes milled out. The
results of these experiments will
in due course be available for
readers of The Modelmaker. f

I never thought that mild steel
could be so hard until I started
work on the main frames, but
now that they are finished I
don’t mind.

Ps a
good many readers of the Model-
maker in California who are in-—
terested in Modelmaking and es-
pecially Model Boats and we
hope that a goodly number of
these gentlemen will immedi-
ately get into correspondence
with Mr. Wilson or otherwise
make his personal acquaintance
with a view to the formation of 4
real live Model. Bnelipets clabg

—

Mr. R.°W: Jacobs, 115 North

16th Street, Kenmore, Ohio,
writes that they have adopted
the following name for their
Society “The Akron Association

of Model Engineers.” At pres-
ent they have no regular meet-
ing place, but they go to each
others homes where they have
workshops generally on Sunday
afternoons. He will be very
glad indeed to hear from any of
our readers in his locality who
are interested in Model Work.
At present there are eight mem-
bers with a good number of
prospects. The members are
all interested in Railway Mod-
els, both steam and electric. Two

locomotives have been complet-.

ed, one an American 4—4—0 of
4” gauge. It is complete with
all fittings and gauges on the
boiler. The other is an Atlan-
tic 4—4—2 Type of 1%4” gauge.
This locomotive has been under
steam a good many times. They
have two Locomotives under
construction one an_ Electric
Locomotive of 2” gauge scaled
down from an inter-urban elec-
tric freight locomotive the plans
of which were in the Electric
Railway Journal. The other is
a Steam Locomotive Mogul
Type 2—6—0 of 1144” gauge ex-
ternally fired. Mr. Jacobs would
like to get some good photo-
graphs taken of these locomo-
tives and would like to get some
suggestions on the best method
of taking good photographs suit-
able for reproduction. Here is
an opportunity for some kind

photographic friend living with-

in a reasonable distance of Mr.
Jacobs to offer. his services and
apparatus and show these boys

how to make some real good.

pictures of the work they have
accomplished.

“7

THE MODELMAKER oe 62

Ohio readers should all try
and join up with this associa-
tion and help to make it a real
live organization even if some
of them, by force of circum-
stances, can only be for the
time being corresponding mem-

bers. Get this club going full
speed and it would be very easy
to form branches in different
parts of the state that could be
affiliated with the parent organ-
ization in Akron. We hope in
time that there will be a Na-
tional Organiaztion whose mem-
bers are representatives from
the different clubs in the vari-
ous states.

Mr AW. Re yon; uP. OF <Box
256, Atlanta, Ga., had a meeting
of some men at his house the
other night who were very much

interested in model work. We
would suggest that all of our
readers who are located within
a reasonable distance of Atlanta
should get in touch with this
gentleman with a view to form-
ing a little gathering of Model-
makers for an occasional get-
together-meeting.

Last year the American Ma-
rine Association offered three
prizes to the Marine Boy Scouts
at the Kanahwanke Camps for
the three best Model Ships. Over
one hundred Model Ships were
submitted in the competition.
Plans are being made to extend
this work this summer in other
camps. During the past winter
a number of Chicago Boy Scouts
have built Model Racing Yachts
and they expect to hold some
competitive races this summer
with the boats.

62 THE MODELMAKER

STATEMENT OF THE OWNER-
SHIP, MANAGEMENT, CIRCU-
LATION, ETC., REQUIRED BY
THE ACT OF CONGRESS OF
AUGUST 24, 1912, OF THE
MODELMAKER, published monthly
at New York, N. Y.,-for April 1,

1926.

STATE OF New YorkK i :
County or Nrw Yorx § °°

Before me, a Notary Public, in and
for the State and County aforesaid,
personally appeared W. Edmunds
Spon, who, having been duly sworn
according to law, deposes and says that

he is the Editor and Business Manager
of the MopELMAKER and that the fol-
lowing is, to the best of his knowledge
and belief, a true statement of the
ownership, management, etc., of the
aforesaid publication for the date shown
in the above caption, required by the
Act of August 24, 1912, embodied in
section 443, Postal Laws and Regula-
tions printed on the reverse of this
form, to wit:

1. That the names and addresses of
the publishers, editor, managing editor,
and business manager are:

Publishers, Spon & Chamberlain, 120
Liberty St., New York, N. Y. Editor,
W. Edmunds Spon, 120 Liberty St.,
New York, Managing Editor,
none; Business Manager, W. Edmunds
eee 120 Liberty Street, New York,

The owners are W. Edmunds Spon,
120 Liberty St., New York; Wm. Cham-
berlain, 120 Liberty St., New York.

3. That the known _ bondholders,
mortgagees, and other security holders
owning or holding 1 per cent or more
of total amount of bonds, mortgages,
or other securities are: None.

4. That the two paragraphs next
above, giving the names of the owners,
stockholders, and security holders, it
any, contain not only the list of stock-
holders and security holders as they ap-
pear upon the books of the company,
but also, in cases where the stockholder
or security holder appears upon the
books of the company as trustee or in
any other fiduciary relation, the name
of the person or corporation for whom
such trustee is acting, is given; also
that the said two paragraphs contain
statements embracing afhant’s_ full
knowledge and belief as to the circum-
stances and conditions under which
stockholders and security holders who
do not appear upon the books of the
company as trustees, hold stock and se-
curities in a capacity other than that
of a bona fide owner; and this affiant

LO = RAIS aA ee ee
=

has no reason to believe that any other
person, association, or corporation, has
any interest, direct or indirect, in the
said stock, bonds, or other securities
than as so stated by him.
W. EDMUNDS SPON,
Editor and Business Manager.
Sworn to and subscribed before me
this third day of April, 1926.
J ot. “HAREGEY,
Notary Public, New York Co., New
York.

(My commission expires March 30,
1927.) ;
(Seal) \

Certificate filed:in New York Co.
301,. Reg. No. 7183.

No.

Since the first of January we
have had many complaints from
subscribers not getting all their
copies of the Modelmaker regu-
larly. We take every care in
getting our Stencils correct. We.
wish our Subscribers would
make a complaint at their local
Post Office to see if we cannot
find out what becomes of all
the lost mail. Sometimes we
find the reader is to blame in
that he has changed his resi-
dence and has not notified us
to that effect. Readers please
remember the United States
Post Office Authorities will not
forward any second class mail
to any Subscriber even if he has
notified’ them of his change of
address. All such mail is de-
stroyed ‘by the Post Office. This
is a regulation we _ believe

should be altered for the con-

venience of the public.

When writing for information —
please enclose stamped and ad-—
dressed envelope for reply.

THE MODELMAKER 63

THE NEW YORK SOCIETY
OF M. E.

The New. York Society of
Model Engineers held their last
meeting at 15 Moore Street, New
York City, on the evening of
April 13.. Several new members
joined, and a large attendance
Was on hand: They all had a
very enjoyable evening.

Mr. Berg brought his 4—4—0
American Type 214” gauge Loco-
‘motive, and Mr. Lozier showed
a 1%” gauge Atlantic Type
Locomotive, a freight car and a
cattle car. Mr. Bosshardt
brought a 4-cycle Gasoline En-
gine, 1144” bore, which he had
designed and constructed. Mr.
Bray exhibited the completed
pilot truck for a %” scale, Pa-
cific Locomotive.

The next meeting will be held
on Tuesday, May 11, at 7:30
P. M. Mr. Grimke will give a
‘short talk on Model Locomotive
Cylinders. Mr. Berg will speak
on Locomotives, and Mr. Bray
will also make a short address.
All interested should communi-
cate with Mr. A. A. Singer, Sec-
retary, 15 Moore Street, New
York City.

FOR SALE

Morgan twenty-foot glider
parts. Precision machine work
for models a specialty. F. W.
Icken, Morsemere, N. J.

Models, Railways and Locomo-

tives, back nos. and Vols. in
good condition. Box 10, Model-
maker.

Everyday Mechanics, Nos. 1 2
and 6 of Vol. 1, Nos. 1 2 and 3
of Vol. 2. Box 2, Modelmaker.

American Institute of Elec.
Engrs. Volumes 1 to 8. Box 4,
Modelmaker.

Electric Motor Stampings.
Small sizes suitable for electric
motors for model locomotives.
Modelmaker, Box 10, 120 Liberty
Street, New York.

FOR SALE

Constructional Blueprints —
24” Model Racing Yacht, as il-
lustrated in February, Model-
maker. 1 sheet, $2.25. Perry’s
Flagship, the brig Niagara, 3
Sheets, $5.00. These blueprints
give all details necessary to
build above models. <A. R. Fer-
ris, 284 East 151st Street, Cleve-
land, O. -

Drawings made to order for
model locomotives (Amer. Prac-
tice). Crater, 458 Colonial Rd.,
Roselle Park, N. J.

Blue Prints of Ships for
Modelmakers, send for circular.
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

WANTED

Wade Lathe No.
without accessories. Must be in
A-1 condition. State lowest
price. W. L. Scott, 19 Ellsworth
Avenue, San Mateo, Calif.

1 with or

A 2!4 in. gauge steam loco-
motive, send particulars and
prices to F. C. Heneken, 510
Monmouth Street, Jersey City,
Ni

PRACTICAL LESSONS IN METAL
TURNING AND SCREW CUTTING
By Percival Marshall

A practical handbook for Model-
makers and Mechanics. Contents of
chapters: 1. The Lathe and Its Parts.
2: Tools and Toolholders. 38. Measur-
ing Appliances. 4. Chucks and Man-
drels. 5. How to Center Work for
the Lathe. 6. Driving Work Between
Centers. 7. Turning Work Between
Centers. 8. Speeds, Feeds and Lubri-
cants. 9. Chucks and Face-plate
Work. 10. Drilling and Boring in
the Lathe. 11. Screw Cutting. Tables
of Change Wheels. Index. 218 pages,
220° illus. / Cloth, $1.25.

SPON & CHAMBERLAIN
120 Liberty Street New York

64 THE MODELMAKER ——

WORK WANTED

I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.

JUST LAUNCHED

The Ideal Model Steam Boat
‘‘Henley’’

Designed and Built by Stuart Turner,
Ltd., Engineers, England
Manufacturers of Model Machinery,
Steam and Gas Engines, Boilers,
Pumps, Fittings, Castings, etc,
Represented by
ALFRED PAUL & SON
8 Ashland Street, Melrose Highlands,
Massachusetts, U. S. A
Sole U. S. Agent *

Catalogs 25¢ coin, post free
Cable Service

i op? WADE
cee») Bench
Lathes

Capacity: 4” dia. x 12” length.

Turning, Facing, Boring, Drilling,
Winding, Thread Cutting

No. 1 Plain Machine as above ........ $23
No. 2 Back-Geared, Screw Catting $58
SEND FOR FREE 16-PAGE
CATALOG
Shows full details and accessories

THE GEROLDCO. (Dept. M13)
120 Liberty St., N. ¥.

THE MODELMAKER

BOUND VOL. I. :

or return your numbers to us with $1.10 and we will mail you a new bound copy.
BOUND VOL. II. er

or return your numbers to us with $1.10 and we will mail you a new bound copy.
We still have a few copies of Nos. 1, 2, 3, 4, 5 of Vol. I. Price 10c each.
We still have a few copies of Nos. 1, 2, 3,

Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

May, 1925.

YP eee aa ae on
vy ’ 7 Pet ae

WANTED >

Modelmaker, Volume 1, Num-
ber 6, November, 1924. Model-
maker Volume 2, Number 65,
Will send a copy of
Mechanical Age in exchange,

Spon, 120 Liberty Street, New
York. eee 4

i.
Models Parts Lathes

Domestic — Imported

A. Alexander Singer _
15 Moore Street —
New York City 3 ;

Enquiries Invited

;

Please state in detail what you are

interested in.

TRIPLE X comaination |

Lathe Milling and Drilling Machine >

:
IDEAL

FOR

MODEL
WORK

SEND FOR —
CATALOGS
FREE

TRIPLEX MACHINE CO. |
50 Church Street New York City

1924.. $1.60

1925. $2.10

4, 6, 7, 8, 9, 10, 11, 12 of Vol. 2.

= ire :

DELMAKER

FOR THOSE
INTERESTED IN MAKING

WORKING MODELS”

Vol. Ill, No. 5 ; - MAY, 1926, PT AN f

. 10 cents

t
>

MODEL OF DONALD McKAY’S FAMOUS
: | CLIPPER SHIP “LIGHTNING”
MADE BY MR. G. B. DOUGLAS

THE MODELMAKER

Published by SPON & CHAMBERLAIN

120-122 LIBERTY ST.,

Issued Every Month

NEW YORK,.N. Y.
Annual Subscription, $1.00

Vol. Ill,

No. 5

“Entered as second-class matter Mar. 27, 1925 at the Post Office at
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

Our High and Manual Train-
ing Schools have well equipped
shops for Woodworking, but the
work done seems to be mostly
in the making of uninteresting
things, bits of furniture, and so
forth.

Mr. Roy F. B. Shaver, Inst. in

Woodwork in Los Angeles, has

introduced in his classes a nov-
elty that should take with our
boys. The construction of a well
designed V-bottom ‘“R” class
Model Sail Boat.

The Los Angeles Evening Her-
ald has adopted this classy
model and are offering four sil-
ver trophies for a competition

Mr. Ernest S. Macgowan, 836
Security Building, Minneapolis,
Minn., is very much interested in
Models and believes there are
sufficient men of the same mind
in his vicinity to form the n1-
cleus of a Model Engineers Club.
We hope that all of our readers
living within easy reach of Min-
neapolis will write this gentle-
man, or get into personal touch
with him. In our Foreword of

April we gave a list of the Mod- -

el Engineers Clubs in the U.S.
We hope Minnesota will be the
next on the list.

Please don’t forget to mention
the Modelmaker when you write
to our Advertisers.

amongst boats built to this de-
sign. The Regatta will be held
in June on the lake at Westlake
Park, Los Angeles.

We have before us a full size
drawing and full particulars of
the construction of this Boat.

This information reaches us
just as we are featuring a simi-
lar Sail Boat designed and oe
structed by one of our subscrib-
ers.

We are glad to see such a from
mendous amount of interest be-
ing taken in this delightful sport.
A sport that the poor boy, old
or young, as well as the rich boy, —
can take part in. i

Mr. James Everest, 2023—47th |
Ave., Oakland, Calif, is very
much interested in Model Work,
and is now working on a Coven-
try P. R. R. Passenger Locomo-
tive %” scale. Mr. Coventry has
sold a good many sets of this
Locomotive and very shortly a
good many of them will be under
steam. ;

Mr. Donald Umphrey, 328
Quincy Ave., Cottage Grove, Ore-
gon, is very much interested in
Model Work and would like to
get in touch with any other Mod- 4
elmakers in his district with a
view to an occasional get-to-
gether meeting. ;

THE MODELMAKER 67

A MODEL TEN
WHEELER LOCOMOTIVE OF 1863

H. J. COVENTRY, ASSOC, MEM. A. S. M. E.

The subject for this model was built in 1863 by Thatcher Perkins
for the Baltimore and Ohio R. R. and was one of a group that
worked through passenger traffic over the seventeen mile grade
‘between Piedmont and Altamont until 1890. These engines had
cylinders 19” by 26” with 6414” drivers and weighed 90,700 pounds.
68,300 being available for adhesion. The boiler was 18’8” long from
backhead to front tube plate, and smallest ring 49” dia. 1388 tubes
2%” dia. provided 570 sq. ft. of heating surface, to which the fire-
box added 59 sq. ft. and a combustion chamber an additional 62

sq. ft., making a total evaporating surface of 691 sq. ft., grate area
18 sq. ft. Wood was used for fuel. |

The model to 1%” scale was built for Mr. Edward Hangerford,
Centenary Director of B. and O. R. R. by whose courtesy the writer
is enabled to present these notes and illustration. A working
-model—that is a self propelling steam model—was not desired, but
correctness in external appearance was made the chief desideratum.
The model was to represent the engine as it was in 1863, and not
as it now stands as an exhibit in one of the company’s round-
houses. To this end much information was gathered from Mr. O. C.
Cromwell, Assistant Chief of Motive Power of B. and O. R. R., and
the writer is indebted to this gentleman for his assistance and
suggestions in obtaining a closer degree of accuracy to the original
engine than would otherwise be the case.

The model is 26” long, 2144” gauge of track. Frames are bronze
castings of correct bar type, wheels of gray iron, drivers being 254”
dia., the main and front drivers are flangeless. Side rods are of
steel, crossheads cut from solid metal. Cylinders are made in
pairs, with half saddle. Steam chests are cast solid and have
mouldings around the top. The chests are held to the cylinders
by means of the shank of lubricators, which screw into cylinder.

_ The boiler is of wood, covered with sheet brass, while domes,
‘smokebox and front are bronze castings machined all over. Stack
is built up of sheet brass. Front bumper beam is of wood, while
the pilot is a bronze casting. (The actual engines had wooden
‘pilots and cabs.) The shackle bar is cut from steel, also the

68 THE MODELMAKER

knuckle and bolt, the pocket is cut from solid metal.

opportunity of making the model cab of castings there being six in
number %” thick, the window sashes are thin strips of brass
The extra weight at rear end is
also an advantage in balancing the weight of cylinders and smoke-

soldered in place on the inside.

pulled.

The paint scheme is for wheels, vermillion; boiler and domes,
black, with polished brass mouldings and bands; pilot, black; cab
venetian red outside, light green inside.
in yellow and red. Side rods, crank pins, brasses, and shackle bar

polished.

In an article published in the
Modelmaker last year the au-
thor, Mr. G. A. Cuthbertson, on
page 156, remarks he does not
know of any place in the United
States where they have a collec-
tion of Models similar to that
shown in the South Kensington
Museum in London, England.
Mr. Ernest S. Macgowan writes
us that he thinks our readers
would like to know that there
are two very fine collections of

box, making the model roll easily and smoothly when pushed, or

The cabs on
the actual engines being of wood averaging 244” thick gave a good

Lettering in yellow, lining

boat and ship models, one at the
Institute of Technology, Boston,
Mass., and the other Smithsoni-
an Institute at Washington,
D. C. If any of our readers
know of any other collection in
the U. S. that is open to the
public we should be very glad to.
have the address and mention it

lightful pastime.

THE MODELMAKER 69

MODEL OF CLIPPER SHIP
“LIGHTNING”

S By G. B. DOUGLAS

I am sending you a photo of a model of the Clipper Ship “Light-
ning” recently completed by me from the plans I have advertised
in your Magazine.

_ The model is 4%” scale and was built in about 6 weeks’ time.

_ A few remarks on the ship’s performances will, I think, be of in-
terest to your readers.

_ “Lightning” was built by Donald McKay at East Boston, Mass.,
to the order of James Bains, in the winter of 1853-4 at a cost of
£30,000 and on her arrival in Liverpool was furnished and decorated
below at a further cost of £2,000.

_Her measurements were: Tonnage builders 2,096 tons; register,
1468 tons; burthen, 3,500 tons. Length, 244 feet. Beam, 44 ft.
Depth, 23 feet. Dead rise at half floor, 20 in. She was one of the
sharpest ships ever built. Capt. A. H. Clark said of her, she had
long, concave water lines and at her load displacement line, a
cord from her cut water to just abaft the fore rigging showed a
concavity of 16 inches. Mainmast deck to truck, 164 feet; fore-
mast, 151 feet; mizzen mast, 115 feet; main yard, 95 feet; lower
studdingsail booms, 65 feet. The spread, 13,000 yards of canvass
under all plain sail.

On her first trip from Boston to Liverpool she made the run in
February-March, 1854, from Boston Light to Rock Light in 13 days,
19% hours and according to her log of March ist in strong gales
was making 18 to 1814 knots; the day’s run being 436 miles, a day’s
record which has never been equalled by a sailing ship.

- She left Liverpool for Melbourne on her first voyage on May 14th,
1854, and arrived out July 31st, 77 days. Left on her return, August
20th and arrived at Liverpool October 23rd, in 64 days, 3 hours and
10 minutes. A record that has never been broken. The round
voyage, including 20 days in port, was only 5 months, 8 days and
21 hours. On this voyage in ten consecutive days, she sailed no
less than 3,722 miles, her best day’s run being 412 miles.

3 On this voyage she brought home gold and dust to the value of
fl, 000,000 sterling.

_ During the Sepoy Mutiny in 1857 she was chartered by the
British Government to carry troops to India.

70 THE MODELMAKER

The “Lightning” on October 31st, 1869, while alongside the pier
at Geelong, Australia, with 4,000 bales of wool on board, caught
fire from spontaneous combustion and was burned to the water’s
edge and sank.

23.25°W.L£. PIODEL
44 Jehock 1926
vies

Sail Plan of Mr. E. |. Schock’s Model Yacht.

7. f
, on

THE MODELMAKER 71

A TWO-FOOT WATERLINE
MODEL YACHT

By E. Il. SCHOCK

For the beginner at model yacht building and for the man who
wishes to have a model that is easily moved from place to place
without special boxes, I believe a boat of this size and type is very
satisfactory.

The fin-keel may be removed and the rig unshipped, making a
very portable boat.

The model shown in the accompanying plans is 2314 inches water-

line, 9 5/16 inches beam, 34% inches overall, and has a draft of 9
inches.

The hull is built up in the conventional way of boards cut to shape
inside and outside, then glued together. After the glue has set a
block of wood is fastened inside the boat, and the model is held
in the vise by means of this block while the outside is shaped. For
the outside I use the smallest plane I can buy, a Stanley iron plane
about 3 inches long. This is a very satisfactory tool, for it is short
enough to slide around the curves of the hull, and can be held in
one hand. For the cross sections I use cardboard templates. Thin
wood makes better ones if you have it. After it is planed smooth
the hull may be finished on the inside with a big, long-handled
gauge, outside bevel. For this job I hold the model between pillows
to protect the outside. Leave the hull thick in way of Rudder Stock
and Keel Bolts. The deck beams are carefully notched into the
hull, making a little dovetail joint. I do not crown the decks, as a
flat deck saves much labor in fitting, and looks very well on small
models.

- Before putting on the deck all fittings must be fastened in place,
both on deck and below. The keel clips must be a strong and
watertight job. The vertical rudder stock and tube are very much
easier to fit than slantwise ones. I have had one very difficult
and trying experience with a sloping rudder, and shall try them no
‘more. }

Fa Deck fittings may be bought from model fitting dealers, or made
at home. The home made ones are stronger and can be made the

‘size you want them. Bought ones are very expensive.
= The rudder action shown on the Lines Plan is this:

72 THE MODELMAKER

A double ended tiller is held amidships by a strong elastic and
a “runner” such as is used on tents. The line leads through an
eye bolt amidships and is fastened to another eye forward. The
main sheet is fastened to the aft end of this tiller. This rig is
very easily built, and works almost as well as the very complicated ©
ones in use on larger models.

The Rudder is a piece of sheet metal, preferably something light.
It is riveted to the stock, which in turn is split with a hacksaw
to receive the blade. The tiller has a square hole in it, which fits
over a square part on the stock. It is held on by a screw fitting
into a tapped hole in the rudderstock. By removing this screw the
rudder may be unshipped. .

The fin is held in its clips by small countersunk head bolts. This
does not look very rigid, but if the model is lifted out of the water
by the hull and handled carefully these will hold.

I have this rig on a 39-inch model which has been in use twelve
years. It is still strong. The lead bulb on this boat is about 8 lbs.

The drawings do not show the lead bulb for the keel. No two
builders will get exactly the same weight of hull, so that each.
keel should be determined by experiment.

The rigging on this boat is dark green braided fens line. All
lines have hooks at both ends so that they may be removed easily.
The sails are Lonsdale Cambric, finished with Wright’s Bias Tape.
The selvage of the material parallels the leach of each sail. |

In making spars the white pine sticks are planed square, tapered,

planed octagonal and then round. Spars, hull and deck should be.

scraped before sanding and sandpapered as smooth as possible.

To fasten a sail to a spar stretch a fine enameled radio wire |
along the spar next to the sail, fastening both ends securely. Lace
the sail to the wire, then fasten the wire to the spar with double.
pointed tacks bent from small common pins. By this method you
avoid having lacing around the spars, which gives the yacht a more
realistic appearance. 3

I have used shellac on decks with perfect results. ee dnae a
nish of course is better, but it dries slowly. The hull should have
not less than four coats of paint, each coat sanded to make
smooth back for the next. The last should be enamel, and left
bright. It is not wise to use steel wool in place of sandpaper. It
is fast, but scratches.

When finished the model is placed in the bath tub for keel experi-
ment. Everything in place. Junk of any kind is piled on deck

‘
|

until she floats on her designed waterline.

The weight of the

_ junk is the weight of lead required for the keel.

. The junk is then removed and the model pressed down with a
finger to get the position of the center of gravity of the lead. The
model may be adjusted for trim by pressing down on her deck in
_ different spots and when the correct trim is found the spot marked.
_ The center of gravity of the lead should come just below this point.
_ When the model is in the water you cannot see her waterline
i from above. To see it from below put some polished pie tins on the
bottom of the tub to act as mirrors. With these the contrasting
‘colors of the waterline can be seen.
_ These suggestions, while not very complete, may be of some

help in building a first boat.

Much of the detail of hull building

I have omitted because good books on hull construction are avail-

Z, able in libraries.

The plans shown are almost exactly like those of one of my
_ models, and should produce a good, fast boat.

yo ~ BOOK REVIEWS
Sailing Ships at a Glance, by
E. W. Hobbs, A.I.N.A. xviii, 113
pages,-150 illustrations, size 8%
x5%, cloth, $2.50. A pictorial rec-
ord of the evolution of the sail-
— ing ship from the earliest times
until today. An extremely in-
_ teresting historical sketch show-
_ ing the progress of shipbuilding
_ from period to period including
illustrations of a great variety
_ of different types of sailing ves-
_ sels. While only giving a few
details of construction it will
~ still prove of very considerable
interest and’ value to all who
_ are interested in the construc-
tion of old time model sailing
_ ships.

_ Amateur Telescope Making, by
the Rev. W. F .A. Ellison and
_ others, 102 pages, 61 illustra-
| tions, size 8x5%, inches, cloth,

$2.00. Work is divided into sev-
en parts as follows: 1. Mirror
Making and Mounting a Sun
Telescope; by R. W.. Porter,

‘M.S. 2. The Amateur Telescope,

Rev. W. F. A. Ellison. 3. Meth-
ods of Silvering. 4. Miscellany
by Albert J. Ingalls. 5. Tele-
scope Mounting From Automo-
bile- Parts, «by °C: Ions: °-6:. A
Telescope That Anyone Can
Make, J: M. Pierce. 7. Bibliog-
raphy. There is very little prac-
tical information to be had on
this subject so this small work
should prove helpful to all those
interested in this fascinating
subject.

We have had inquiries from
several of our readers for stamp-
ings for small electric motors
suitable for electric locomotives. .
If any of our readers know
where these can be purchased,
will they kindly send the address
to the Modelmiaker.

74 THE MODELMAKER

NEW YORK SOCIETY OF
MODEL ENGINEERS

The regular meeting of the
New York Society of Model En-
gineers was held at 15 Moore St.,
New York on the evening of
May 11. There were twenty-four
members present. Mr. F. R.
Pope, the Chairman, presided.

Mr. Berg gave a short talk on
Locomotive wedges and pedes-
tals, and Mr. F. D. Grimke spoke
on the construction of locomo-
tive cylinders.

The folowing models were ex-
hibited. A 2-step Hydroplane,
39” x 11”, engined with a 2-cyl-
inder Westinghouse %” x 3,4”
single acting steam engine, with
a centre-flue boiler. A 2-Cylinder
Westinghouse steam engine di-
rect connected to a centrifugal
pump. A set of castings for a
P. R. R. K. 4s Locomotive, 21%”
gauge, 14%” scale. A single Cyl-
inder, 4-Cycle Gas Engine, with
overhead poppet valves and
some photographs of other mod-

els. These models greatly inter-
ested those present.

The Chairman announced that
there was to be a Competitive
Model Locomotive Construction
Contest and that a friend had
promised to donate a silver cup
to the winner.

The rules for the contest were
roughly outlined as follows:

Contest open only to Members
of the Society in good standing.

Loco must be built to a defin-
ite scale.

Must be an actual working
model.

True in every detail to its pro-
totype.

Details to be to scale.

Workmanship and finish to be
considered.

Contest to close June 1, 1927.

A committee was appointed to
consider and put into definite
form the above recommendations
so that they can be voted upon
at the next meeting.

The next meeting will be held
on June 8. When Mr. Berg will
give a talk on the Baker Valve
Gear and will demonstrate with
a sectional model. Mr. W. Elli-
ott will give a talk on Model
Power Boats.

The members especially inter- |
ested in Model Power Boats will
have an informal meeting at the
above address on May 25th at
7°30 p.m.

All communications should be
addressed to Mr. A. A. Singer,
Sec’y N. Y. S. M. E., 15 Moore *
Street, New York.

Principal contents of the Mod-
el Engineer for February 4, 11,
18 and 25: Method of Making
Small Wood Pulleys. A Work-

ing Model of a 1” Scale Loco-
motive Chassis with Cylinders
and Valve Chests in Half Sec-
tion. Annual Speed Boat Com-
petition. Locomotive Boiler Con-
struction by “L. B. 8S. C.” Loco-
motive Prototypes. Two Disc
Cutters. Electrolytic Rectifi-
ers. Private Electric Lighting.
Making Patterns for Roller and
Pulley Castings. Adjustable Drill
Jig for Screw Dies. The New
Work Shop of the Glasgow So-
ciety of Model Craftsman. Mod-
el Marine Notes. Two Model
Vertical Steam Engines. Mak-
ing a Set of Corebox Planes. A
Hand Press for Small Jobs. The
Construction of Stream-line Ap-
paratus. Recent Inventions.
Queries and Replies. Practical
Letters. Club Notes. Etc., ete.

So PA
it. :

aa?

THE MODELMAKER © 75

Model Railway News, contents
for May, 1926. A Veteran Rail-

way Model Engineer. Mr. M. R.
Clarke’s Model 3%” Gauge
Single-driver 2—2—2 Type
Steam Locomotive, his. Electric-
ally Driven 2” Gauge Model G.
W.R. 4—6—0 Type Loco “Sir
Felix Pole” and his 7/16” Scale
Model G.W.R. 4—4—0 City Class
Loco “Lord Reading’ and Views
of his 2” Gauge Garden Railway.
Construction of an “O” Gauge
Model Railway. An “O” Gauge
L.M.S. Railway. Mr. T. W. Mars-
den’s Model 2—4—2 L.M:S. ‘“‘Col-
-umbia Type” Mixed Traffic Loco
and Junction of his ‘“‘O” Gauge
Railway. Mr. H. Greenly’s Gar-
den Railway System. Advantages
of the non-continuous lay-out. L
& N.E.R. Standard 12-ton Miner-
al Wagon. Mr. G. H. Alexan-
der’s 50-year old Model Locomo-
tive, Carriage and Van. Scales
and Standards in the Smaller
Gauges. Mr. N. Evans, “O”
Gauge L and N. W. R. Model
Railway. Mr. F. W. Hindes’ “O”
Gauge Locomotive and 4-coach L
and N. W. R. Train. Our Mail-
bag. What We Want. The Mod-
el Railway Club Exhibition.

We have just received a very
encouraging letter from the

American Model Locomotive Go.
of San Francisco. They inform
us that they have hada big de-
mand for their railroad track
which has cleaned them out, but
_that they will have a new stock
shortly. They also inform us
they have a number of orders
and about 100 inquiries for the
“0” gauge locomotive. We are
“very glad to hear that they are
doing so well and hope all our
Californian readers will get in
touch with this firm who certain-
ly have some very nice models

Mr. O. Harry Squier-is very
much interested in-Modelmak-
ing. Last year he finished a loco-

motive crane. It is electrically
operated with universal motion
and has a lifting capacity of 40
pounds. He is now working on
a Pacific Type Model Locomo-
tive similar to those used for
English express passenger traf-
fic. It is designed to operate
with 100 Ibs. of steam pressure
and the main drivers will also
be connected through shaft and
gearing toa 100 volt A. C. motor
located in the tender. He says
he believes this combination
drive is rather unusual, later on
when he has the model finished,
we feel sure many of our read-
ers will be interested in his tests
of its running capabilities.

Mr. Newton James, Jr., of Los
Angles, Calif., has very kindly
sent us particulars of the Los
Angeles Evening Herald Model
Yacht Races to take place next
June, also a full sized drawing
of their V-Bottom ‘“‘R” Sail Boat.
The boats are to. be built by
boys and sailed by them. Four
handsome silver trophies will be
given. We believe a good many
of our readers will be interested
in this, the fourth annual regatta
full particulars of which can be
obtained from the Los Angeles
Evening Herald.

Mr. J. H. Guild, 33 Cranston
Ave., St. John, N. B. Canada, is
working on a model of the
C. N. R. Mountain Type Loco-
motive, and seems to be mak-
ing good progress with it.

When writing to us or to our
advertisers for information,
please enclose a stamped and.
addressed envelope for reply.

_ and supplies.

76 x THE MODELMAKER
CORRESPONDENCE T. B. S—We do not know of —
Akron Association of Model any book that describes and il-
Engineers lustrates all the parts of a model —
ship. There are several new
pia etree 7. 1926 books in the press and these will

The Modelmaker.
Dear Sirs:

Here we are at last. How does
the above strike you? After so
long a time of talking it over we
are now hitting on all “four”
and going strong, with bright
prospects for increased mem-
bership. We have a live bunch,
and all fine mechanics. Any as-
sistance you can give us in the

way of suggestions, etc., will cer-
tainly be appreciated. You can
look to the Akron bunch for
some results in Model Engineer-
ing in the future by the looks
of the fine work I witnessed at
our first regular meeting, when
some of our members showed
specimens of their work. We
hope to have some good dope
for Modelmaker soon, also new
“subs.” We are getting started
about right in line of building
models as we have draughtsmen,
patternmakers, machinists, elec-
tricians and some experienced
modelmakers and some fine mod-
els. I will have to close the
throttle for this time. Hoping
to have more for you later.

Yours sincerely,
J. W. Neptune,
130 Paul Court.

F. H.—We think you will find
just the information you require
about the construction of Model
Marine Engines in the first Vol-
ume of Modelmaker. The arti-
cles are by Mr. F. ‘D. Grimke,
and are illustrated with detailed
drawings.

be reviewed in our book columns ©

as soon as published.

We have just received some :
copies of the Bathe Manutactur-
ing Company’s new Catalogue, :

listing Model Marine Steam En-

gines, Model Stationary Steam ©
Engines, the various types of

boilers with boiler and pipe line

fittings and some illustrations —
of sectional models and patent ©
demonstration models with de--
scriptive matter with a number —

of notes and useful hints. A

charge of 20 cents is made for
this catalogue. We would sug-

gest that all our readers inter-

ested in this line of model work

send two dimes to the above —

company and get acquainted

with the new line of goods this ©
firm has ready for the market. %

The Gero!d Company advise —
that the call in the past several
years for a Wade lathe with a
larger capacity between centers —
has caused them to bring out the ©

No. 1 and the No. 2 machines

with extended bed to accommo- —
date work up to 18” between —
In every. other respect >
the lathes are the same as the —
well known standard. There are
many jobs on metal where such —
increased capacity will come in
very handy and for woodworking ~
it will prove to be a boon to
those desirous of handling long-—
er pieces of work. Deliveries
can now be made in limited
quantities of this new size but
soon the stock on hand will be
sufficient to meet all demands. ~

centers.

THE MODELMAKER P 17

@ WHAT'S IN YOUR GARRET?

|SALE—EXCHANGE— WANTED

ee THING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or

_ figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

_ Gears and Model Supplies of
every description. Catalog 5
“sg cents. Experimenters Supply
Bouse, Box 10, Station Y, New
"York City.

_ YH.P. Horizontal double act-
ing, piston valve, Steam Engine.
(See Modelmaker, June, 1925.)
- Also Corliss Engine single cylin-
der, bore 2”, about 214” stroke.
Full particulars, Goodwin, 354
75th Street, Brooklyn, N. Y.

NC-4 Seaplane Set, complete,
4% ft. wingspread, carved ,pro-
_pellers, parts cut, instructions,

$10. 00; eight 2%4-inch finished
- loco drivers, $8.00 Frank Bar-
by chard, Jr., Foley, Ala.

The Coming Sport—Buy your

sockets for your man-sized glider

- from Icken, 903 Ray Ave., Ridge-
@iield, N. J.

. Blue Prints of Ships for
_ Modelmakers, send for circular.
G. B. Douglas, 165 Summit Ave.,
_ Upper Montclair, N. J.

-_ Drawings made to order for
- model locomotives (Amer. Prac-
“ tice), Crater, 458 Colonial Rd.,
- Roselle Park, N. J.

2-Cylinder Marine Steam En-
gine, %”x%4”, $15.00. A Single
_ Cylinder Marine Engine, 5"x5%",
_ $5.00 Box 10, Modelmaker, 120
. Liberty St., New York.

WANTED
Models, Railways and Locomo-

tives, back nos. and Vols. in
good condition. Box 10, Model-
maker.

Everyday Mechanics, Nos. 1 2

and 6 of Vol. 1, Nos. 1 2 and 3

of Vol. 2. Box 2, Modelmaker.

American Institute of Elec.
Engrs. Volumes 1 to 8. Box 4,
Modelmaker.

| WANT YOUR WORK

I make patterns, small castings
and handle Modelmakers’ Wants.
Modelmaking is my business. I
will do work for all Modelmakers
at small cost. James H. Koch,
103 Summit Ave., Linwood, Pa.

g THE MODELMAKER

MODEL ENGINEER Vo] VI.

Model High Speed Steam Yacht. | Illustrated.

Tools for Small Engineering Work.

Hints on Building a Model Steam Pinnace. Illustrated.

A Mo el Contractor’s Locomotive. illustrated.

A Model Electric Light and Power Plant. Illustrated.

A Small Electric Dark Room Lamp _IIustrated.

A Sparking Dynamo for Gas Engine Service. Illustrated.

A Model Industrial Exhibition. Ulustrated

Simply Made Electric Clocks. [lustrated.

An Easily Made Amateur’s Bench Drill. Illustrated.
Fittings for Model Yachts. Illustrated.

A Simp’‘e Working Model Locomotive. Illustrated.

A Model Traction Engine. lllustrated.

A New Locomotive Valve Gear.

The Construction of a Small Storage Cell. Illustrated.

Hints on Building a Model Torpedo Boat Destroyer. Illustrated.
An Invertible Electric Night Light Set- Illustrated.

The Uses of Engince:ing Models. Illustrated.

A Working Model Coiliery. Ulustrated.

Hints on lesting and Repairing Small Dynamos and Moters.
Design for a Minature Model Yacht. Illustrated.

A Model Clock Work Railway. Illustrated.

Design for Model Launch Engine. Illustrated.

An Acetylene Generator and Reservoir. Illustrated.

A Small Power Vertical Steam Engine.

A Model Travelling Steam Crane. Illustrated.

Electric Furnaces. Illustrated.

Building of a Model Battleship. IUlustrated.

A Model Thornycroft-Type Boiler. Illustrated.

A Model Electric Locomotive. Illustrated.

Motor Cycles and How to Construct Them. Illustrated.
Motor Bicycles, Their Design and Construction. Illustrated.
Design for an Engine to Drive a Model Twin Screw Steamer. Illustrated.
How to Make a Galvyanometer. Illustrated.

How to Make a Tank Locomotive, 1 in. scale. Illustrated.
How to Demagnetize a Watch. Illustrated.

How to [ake Experimental Electrical Apparatus. Illustrated.
How to Build a Model Steam Launch Hull. Illustrated.

How to Make a4In. Spark Coil. Illustrated.

How to Make Home Made Dry Cells.

How to Make a Simple Relay. Illustrated. :
How to Make an Engine and Boiler for a Fast Steam Launch. Illustrated.
How to Make a Simple Volt Meter or Ammeter. Illustrated.
How to Make a Powerful Bicromate Battery. Illustrated.
How to Make an Electric Motor. Illustrated.

How to Make Permanent and Electro Magnets. Illustrated.
How to Make a Model First-Class Battleship. Illustrated.
How to Build a Model 4=-pole Electro=-Motor. Illustrated.
How to Fit Up a Grindstone. Illustrated.

How to Build a Steam Turbine. Illustrated.

With many pages of Short Articles, Practical Letters, Notes, Questions and
Answers, Book Notices, New Tools, Supplies, &c., &c.

284 pages, 322 Diagrams, 95 Half-tones, 2 Full Page
Plates, 9 Full Single Page and 1 Double Page Scale Draw-

ings. Price, B2.OO,, vet.

SPON & CHAMBERLAIN -
120-122 Liberty Street
New York City

THE MODELMAKER } 79

MODEL ENGINEER Vol. 7.

How to Become an Electrical Engineer.

How to Make a Lever Switch. Illustrated.

How to [Make a Model Battleship. Detail Drawing.

ios to sake an Air Compressor, for Driving Model Engines. Detail
rawings.

How to set a Simple Slide Valve. Illustrated.

How to Make a Simple Model Steamer. Diagram.

How to Make an Electrical Indicator. Detail Drawings.

How to Make a Model Electric Launch. Detail Drawings.

How to Make a Gramaphone. Detail Drawings.

How to Test Small Engines and Boilers. Diagrams.

How to Make Clock Work Locomotives Detail Drawings.

How to Make a Model Vertical Marine Engine. Detail Drawings.

How to [ake a Built-Up Horizontal Steam Engine. Detail Drawings.

How to Make a 40=Ampere-Hour Accumulator. Illustrated.

How to Make a Model Steam Travelling Crane. Detail Drawings.

How to Make a 1/10 H. P. Electric Motor. Detail Drawings.

How to Make a Small Lathe from ‘' Scrap.’’ Illustrated.

How to [Make a Power Fretsaw. Detail Drawings.

How to Make a Spring Lathe Chuck. Diagrams.

Model * Willians’’ Central Valve Engine. Detail Drawings.

Two Simple Forms of Resistance. Illustrated.

The Motor Bicycle: Its Design, Construction and Use. Many Detail Draw-

ings.
The Rating of Model Yachts. With Diagrams.
Jaz Stuart Compound Vertical Engine. Complete Detail Drawings.
Construction of Dug-out [Model Yachts. Detail Drawings.
Construction of 1-2H. P. Water Motor. Illustrated.
Mr. Taylor’s Model Launch Engine. Illustrated.
The Pitmaston-Moor-Green Model Railway. Mlustrated.
Model Tank Locomotive. Detail Drawings.
' Mr Willis’ Model Steam Launch. Illustrated.
Original Designs for 750-watt Direct Coupled High Speed Steam Engines.
and Dynamos with Full Details.
A Four Inch Screw Cutting Lathe. Illustrated.
Detail Drawings for 80-watt Multipolar Dynamo.
Design for 100-watt Manchester Type Dynamo.
Model Electric Railway. ‘‘ Three Rail System,’’ with Diagrams.
Models made without a Lathe. Some Notes on a Large Static Machine.
The Castelli Coherer for Wireless Telegraphy. Illustrated.
A Cheap Petrol Carburetter for Small Gas Engines. Illustrated.
A Neat Model! Electric Launch.
A Water-Regulating Resistance for a 1-in. to 2-in. Spark Coil. Diagrams.
A Carbon Electrolytic Interruptor, Illustated.

With many pages of Short Articles, Practical Letters, Notes, Questions and
Answers, Book Notices, Yachting Notes, New Tools, Supplies, &c.

286 pages, 311 Diagrams, 101 Half-Tones, 17 Full Single
Page and Two Double Page Scale Drawings.

Price B2A.OO,7" Net.
Copies Mailed to any part of the World on Receipt of

Price.
SPON & CHAMBERLAIN
120-122 Liberty Street
New York City

” Pacific
Locomotive Castings

with drawings, $30.00 per set.

Most Complete on the Market

Castings for six-wheeled Pullman and
Vulean Freight Trucks, in ‘O’’ Gauge
and half-inch scale.

FRANK BIRCH

Gen. Del., HIGHLAND PARK, MICH.

Capacity: 4” dia. x 12” length.

Turning, Facing, Boring, Drilling,
Winding, Thread Cutting
No. 1 Plain Machine as above ........ $23

No. 2 Back-Geared, Screw Cutting $58

SEND FOR FREE 16-PAGE
CATALOG

Shows full details and accessories

THEGEROLDCO. (Dept. M13)
120 Liberty St., N. ¥.

THE MODELMAKER x ete 2

iron Sighs eae nr, ae

MODELS
LATHES

PARTS

DOMESTIC—IMPORTED
Models of All Kinds Made to

Order rare -

Machine Work Done

A. ALEXANDER SINGER
15 MOORE STREET.

NEW YORK CITY | a

PRACTICAL LESSONS IN METAL —
TURNING AND SCREW CUTTING |

By Percival Marshall

‘A practical handbook for~ Model-_

makers and Mechanics, Contents of
chapters: 1. The Lathe and Its Parts.
2. Tools and Toolholders. 3. Measur-
ing Appliances.

drels. 5. How to Center Work for
the Lathe. 6. Driving Work Between
Centers. 7. Turning Work Between
Centers. 8, Speeds, Feeds and Lubri-—
eants. 9. Chucks and Face-plate
Work. 10. Drilling and Boring in
the Lathe. 11. Screw Cutting. Tables
of Change Wheels. Index. 218 pages]
220 illus. Cloth, $1.25.

SPON & CHAMBERLAIN
120 Liberty Street

LOCOMOTIVE DRAWINGS

New York

4, Chucks and Man-

Large Sectional Drawings
showing every part numbered
and named of the following:—
American, or 4—4—0 type loco-

motive; Micado, or 2—8—2
type locomotive; Consolidated,
or 2—8—0 type locomotive,

with Walschaert valve gear;
Pas-

Atlantic type locomotive; —
senger and Sleeping Car, each
of these 25c. Freight Box Car,
35c; Gondola Car, 35¢; Pacific,
or 4—6—2 type locomotive, aizg
44” x 17”, 50c.

THE MODELMAKER, 120 LIBERTY ST., NEW YORK,

4
|
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:

Supplement

Sa MODEIMAKER, Vor iti No. < May, fm 22°.

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FOR THOSE
INTERESTED IN MAKING

WORKING MODE

BU ar Ns 600 Ill, No. 6 : suka. eee. oe 10 Cents —

a A MODEL BRITISH S.-E. 5 A. SINGLE-SEATER FIGHTER,
: MADE BY MR. OSCAR SCHUWENDT

THE MODELMAKER_

Published by SPQN & CHAMBERLAIN

120-122 LIBERTY ST.,

Issued Every Month

Vol. Ill,

NEW YORK, N. Y.

Annual Subscription, $1.00
No. 6

New York, N. Y.

under the Act of March 3, 1879.”

OUR FOREWORD

Model boat building and sail-
ing is certainly becoming one
of the greatest pastimes
amongst our young men in the

U.S. if the reports to hand have.

any’ significance.

There were 300 entries in the
recent Regatta held in Central
Park, New York, under the
management of the Junior Ship-
pers’ League of America, when
fifteen prizes were awarded.
The President has received ap-
plications from fifteen other
cities for membership in the
League and for arrangements
for regattas in those cities. It
is now proposed to hold a Na-
tional Regatta on Labor Day
when the winners at the differ-
ent regattas will compete for a
National Trophy.

The Los Angeles Evening
Herald have arranged for a big
Regatta this month. They had
275 entries at their 1925 Re-
gatta, and this year they expect

a much greater number.
nd

3 Many of our readers will be
interested in the Small Curtiss

Air Compressor, Which is rated

to give 60 lbs. pressure. This

is something quite unique in the
model field, yet a very useful
adjunct to the Modelmaker’s
workshop. Compressed air is
an ideal nvower for testing out
an engine under construction or

- you new members.

The Detroit Model Yacht Club |
and the Toledo Model Yacht
Club have also full programs.
Now we hear that the N. Y.:
Soc. of M. E. are planning fer a
Model Power Boat Contesf in
September. The Marblehead
Model Yacht Club and_ the
Brooklyn Model Yacht Club.
have also to be reckoned with.’
And we have no doubt that the)
boys in- Montclair, N. J., are all)
busy tuning up their boats for’
their annual Regatta.

We would like to see more.
interest taken in the building of.
Model. Power Boats and in
Model Power Boat Contests.

Mr. Secretary, send us in par-
ticulars of what your members
are planning for the season of
1926. We are always glad to in-
sert such notices with the sec-
retaries’ names and addresses
in the Modelmaker, as we be-
lieve such publicity is beneficial
to the club in particular and
may be the means of bringinss

E
a
to demonstrate the roden when.
finished. It has many other
uses: paint spraying, running
small tools, in a gas blow pipe
for heating metals, tempering,
brazing, or hard soldering, ete.

etc. It is easy to handle, ‘tear
and effective. Complete sets of
castings with detailed blue
prints can bee Beets: for a
nominal cost.

"The last page of this issue of
‘the Modelmaker, we are quite
sure, will interest most of our

readers who do their best to
produce fine examples of model-
work. There are many little
jntricate jobs the Flexible and
Portable Shaft Outfit can suc-
‘eessfully accomplish, as drilling
‘mall holes in awkward places,
cleaning up soldered joints that
cannot be reached with a file,
grinding the seats of small
‘valves, cocks and unions to
make them steam tight, ream-
ing holes in metal, buffing and
polishing, cleaning out boiler
tubes, hollowing out and clean-
ing up the hulls of model boats
made from the solid, and many
‘other like jobs. As to the value
‘of the goods offered, there can
‘be no auestion, for the quality
and perfection of the delicate
machinery the S. S.. White
Dental Manufacturing Co. pro-
duce is known the world over.
‘This looks like a pretty good
proposition for the Modelmaker.
‘He should write for full particu-
Jars about their special offer.

ie,
_ Mr. Roy E. McAdams, Me-

‘chanical Engineer, 703 Clifton
‘Street, Springfield, Ohio, has
been very much interested in
‘modelmaking - for some years.
He would like to get in touch
with all of our readers who re-
side within an easy distance
0 of his home, with a view to a
‘get-together meeting, and we
hope he will receive a sufficient
number of replies from this no-
ice to enable him to form the
ucleus of a Model Engineers’
Society. He has been very suc-
‘cessful in the construction of
‘Model Gasoline Engines both
water cooled and air cooled.
jis 2-cylinder Aero Hngine
oks very attractive.

- THE MODELMAKER 83

NEW YORK SOCIETY
OF

MODEL ENGINEERS
The Marine Section of the
New York Society of Model En-
gineers held a svecial meeting
at 15 Moore Street, New York,
on the evening of May 25. Mr.
Walter Elliott was in the chair.
Mr. F. D. Grimke promised to

donate a silver cup as a prize
for a Model Power Boat
Competition.

The following tentative rules
were formulated:

The: boats to be of the dis-
placement hull type. A metre
over all and not to exceed the
12 lbs. displacement.

Competition open to members
only.

EKach competitor
construct not less
thirds of the boat.

Hull 1 unit, boiler 1 unit, en-
gine and auxiliaries 1 unit.

Hull may be constructed
either of wood or metal.

All entries must be in
hands of the Committee
later than the meeting of
10th of August.

Race to take
September.

Course and racing rules to be
finally decided upon at the
meeting of the Society on the
8th of June.

Flash steam installation
admissible.

It is hoped there will be a
good number of boats entered
for this competition.

All of our readers interested
in Model Power Boats who are
not members of this energetic

to actually
than two-

the
not
the

place in

not

Society should enter their
names at once. Mr. A. ~A,
Singer is the Secretary, 15

Moore Street, New York. This
gentleman will furnish full par-
ticulars of membership and
dues.

Mee

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ae od

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a Ue pene
hie

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Mee

pees * wespiee, Peas:
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‘THE MODELMAKER

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THE MODELMAKER 85

A MODEL BRITISH ba Boca: SENGLE-
SEATER FIGHTER

By OSCAR SCHUWENDT

(Drawings by the Author)

' The model which is the subject of this article was built by the
writer shortly after the World War and is intended to be an exact
Teplica of a plane which was captured by the Germans. The
original data was obtained from an article published in the maga-
Zine Aerial Age Weekly, some time in 1918, which in turn was
‘a copy of a description appearing in the German aviator journal,
Deutsche Luftfahrer Zeitschrift. The aeroplane in question was
‘built by Vickers, Ltd., and numbered B507, wearing further as a
recognition initial or that of a squadron an “A,” as well as a white
circle. The S. E. 5 A. type of plane is equipped with a 200 H. P.
Hispano-Suiza motor geared down to a four-bladed_ propeller,
whereas the older type called the S. E. 5 was equipped with a 150
A. P. motor of-the same make direct connected to a two-blade
propeller.

my: The dimensions of the plane which appeared in the above men-
tioned magazine article were all given in milimeters. These were
reduced to feet and inches, and the drawings were then made for
a model to be built to the more or less standard scale of one inch
‘to the foot and the model then built from these.

- The writer has revised and redrafted his original drawings
especially for this article, and it is believed that they are sutf-
ficiently comprehensive and complete that very little description
will be needed. However, a few pointers here and there will prob-
‘ably be of some use to the prospective builder and will therefore
be given.
. It might be well to state at this point that the model was not
built as a flying model, it being the writer’s opinion that it would
be folly to attempt to fly a model such as this after one has spent
sveral weeks to complete it. However, it could easily be re-
jesigned slightly to make a flying model by dropping the propeller
‘shaft below the top line of the fuselage and adding a motor stick to
3 the pull of the rubber band motor rather than putting the
Strain on the small members of the fuselage. It would, of course,
be necessary to substitute a different propeller of much higher
itch than the one shown, as this was intended for a scale repro

THE MODELMAKER

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THE MODELMAKER 87

‘duction of the real one. The propeller for a flying model could
just as well be a two-bladed one, as this would be much stronger
as the four-bladed one must be mortised together at the center.
Much of the small detail work, which is, of course, the making
of an exhibition model, could be omitted. Even with all the de-
tail work and the heavy enamel coating on the coverings, the model
weighs less than 14 ounces, so one can see the Bospibility of making
a very good flyer of it.

The suggestions for building will be taken in a somewhat logical
‘order and will follow the same order as the drawings are numbered.
_ The general overall dimensions can be seen on Sheet 1 of the
drawings, which will also give one an idea of various parts of the
‘assembly which might not be clear from the photographs of the
model.

_ Sheet 2 of the drawings gives details of the fuselage and also
‘a few additional parts of the body. The size of the members is
for the most part % inch square wood as noted, and they are put
together in the conventional method, using glue and small brads as-
‘sisted here and there by binding with thread while the glue is
‘drying. The builder will probably prefer to buy his wood all ready
‘planed to the proper sizes from s~me model aeroplane supply
‘house, but the writer would like to point out that in his model prac-
tically all of the wood used was cut from ordinary yard sticks such
“as are usually used for advertising purposes by most furniture
stores. This wood is very light and dry, and as a general rule
is very straight grained, which is much to be desired in model
“aeroplane work. The yard stick is ripped with a fairly fine saw
into several strips of convenient width, and then is finished with
a plane to the size required. The radiator and forms for the top of the
“body may be made from any soft light wood, preferably sugar pine.
"Where bristol board is noted the builder should not attempt
to use heavier than two-ply board, as this will be found to be just
about right. A word might be said here in regard to the tail skid.
On the original plane this is of the spring absorber type, and is
arranged to turn behind the stern post and is connected with the
‘rudder cable by intermediance of springs. No attempt has been
Bras te accomplish either of these points on the model, the skid
being made rigid and stiff. The angle of incidence of the tail
Epiane is also variable on the original plane between 14.5 ands
degrees by means of a threaded post riding in a gear-nut and actu-
ated from the pilot’s seat. There also has been no attempt made
to carry out this detail on the model.
(To be continued )

88 THE MODELMAKER ©

yy” SCALE PACIFIC LOCOMOTIVE
AG

By MR. F. G. CARTER

I enclose a photo of 44” scale Pacific loco which I have just com-
pleted after working on it almost continuously in my spare time
for three years, and give the following particulars of its construe-
tion in the hopes that it will give other model makers some data
to work on, and probably save months of weary experimenting. It
may encourage others to know that this is my first model and
constructed with home-made equipment with a card table for a
bench. The loco does not closely follow any particular protype
and was designed with the idea of crowding the maximum power
possible in a 1144” gauge engine, combined with ability to negotiate
moderate curves. Appearance has been sacrificed to efficiency and
ease of dismantling for repairs.

The cylinders are made from bronze castings purchased in Eng-
land, and together with the six drivers are the only castings used.
They are 3” x %” stroke. They were first made with drilled. holes
for parts, but the power was low and I decided to chip the parts rec-
tangular. In doing this I got the slots all shapes and sizes and spoiled
them. So I made two phosphor bronze plates 1%” thick and the size
of the cylinder port face, cut the ports in the plates, which was 2
simple drilling and filing job and after cutting 1%” off the cylinder
block I silver soldered the plates to the cylinders, this saved the
day.

The valves are P. B. and five sets were made all told. The most
successful ones have 1/32” lap and the exhaust cavity is the exact
distance between the inside edges of the cylinder ports. This al-
lows early release and probably wastes steam but increased the
power 100% over a set of valves, which provided compression and
were probably more thoretically correct.

The pistons are cast iron and were fitted with cast iron rings, |
later I changed to asbestos packing to try and reduce blowing by,
but one works as well as another.

The valve gear is Walschaert. First it was arranged to provide
for 1/64” lap, this necessitated an eccentric arrangement at the lap
and lead lever points to reduce the %” movement of the X head
to 1/64”. After a little running I found that instead of giving the >
valve 1/64” movement, this arrangement lost 1/64” movement ow-

THE MODELMAKER 8

ing to wear in the various pins and points and this of course com-
pletely upset the timing. So a new set of valves were made the

valves having 1/32” lap and a new set of lewers made proportioned

to give 3/64” movement to the valve. This allows the eccentric
movement to be dispensed with, and provides a bare 1/64”lead. The
valves are “set” by sight, by leaving the steam chest off. Turning
the wheels and watching the movement of the valve. At first this
was very misleading as the valve under these conditions would

appear to operate correctly but when assembled the pressure of
_ steam on the valve and the friction of the gland took up all the lost

motion in the various pins and altered the timing, In later attempts
to set the valves the spindle was gripped between the fingers when
the wheels were revolved to more nearly approximate running con-
ditions. All the valve gear parts were made from boiler steel case
hardened. Cold rolled steel proving too weak and brittle at the

z fork joints, which are only 1/32” thick. One other point about the
all important valve gear. I found it better to have the crank arms
1/32” longer than design proved necessary to ensure enough move-
ment of the valve and to avoid having to jam the link block down
to the extreme end of the link. The gear can be “hooked up” to
give the correct valve travel. After making an endless number of

eccentric rods of the wrong length an adjustable rod was made and

when the gear was adjusted to give the correct port opening, the
| adjustable rod was removed and used as a jig to drill the holes in
_ the eccentric rods. I had trouble with the main pins moving, which

of course allows the crank arm to be displaced from its correct po-

sition of 90° from the main pin. This was corrected by screwing
the main pins into the wheel, fitting back nuts, drilling thro wheel
and pin and driving in a dowel, then finally sweating the whole

<
i

works. They should be there to stay now,

ae ane al

90 THE MODELMAKER

The drivers are 114” dia. Smaller than scale to allow for the ;
considerably oversize flanges. Engine and tender truck wheels %” —
dia. cut from C. R. steel. Trailer truck wheels 13/16” dia.

The boiler is the survivor of four attempts, Loco type, 2” dia. x _
1214” long overall. Barrel 20 swg. S. D. Copper. Flues: 52:36" «4
dia x 24 swg. All sheets are flanged and rivetted. The Belpaire ©
firebox was made to copy Pennsylvania Practice and provides large ©
steam space although considerably harder to make than the round ~
top type. The inner firebox is 1/32” copper supported by 24 Ign
bronze stays. Superheater is %” copper tube, two units 4144” long —
inside. Fuel used is soft coal, or charcoal. The soft coal cokes in
the flues and plugs them. The charcoal was at first pulled thro
the stack by the blast and the firebox soon emptied, a brick arch 4
partly cured this, but a 1/16” mesh netting was fitted in the firebox ~
over the openings of the flues and is successful in keeping the fire
in the box. There is no difficulty in keeping the fire burning fiercely :
and 80 lbs of steam on the gauge. j
valve. Pop valve to blow at 80-85 Ibs, this stays open until the pres- e
sure drops to 50 Ibs. and further experimenting is necessary here. F
Trottle, screw reverse gear, two blower valves one for connection =.
to auxiliary boiler for steam raising pump check valve, pump by
pass, two displacement lubricators imitating air tanks on the front —
of a P. R. R. I.1.s. class. Hand pump in tank 5/16 bore x 1” stroke,
eccentric driven pump between frames (at present not working —
thro leakly valves and being impossible to remove without taking ~
off boiler). Five plug cocks were bought to operate the various fit-
tings but these have all been scrapped owing to leaking and seiz-—
ing and needle valves made to replace them. These have steel
needles seating on copper seats and are tight at any pressure by
lightly screwing with fingers. These were made entirely without ~
using a lathe. Frames are steel 14” thick. Driving boxes P. B. on
coil springs. Wheelbase of drivers 4 1/16”. No brakes are fitted.
Engine truck is equalised and carried on a central spring with four
horizontal springs on slides to control lateral movement. Trailing |
truck is carried on two spiral springs and is built up of brass to :
resemble a casting. The Worthington pumps and feed water heat-
er is a dummy and contains the check valve and pump by pass.
The blower has a single nozzle 1/32” diameter. The dummy head- ¥
light generator is brass 4” high and %” wide, people have asked

The fittings are Pressure gauge 144” dia., fitted under the cab
roof with a sliding door to read same. Water gauge with drain.

a THE MODELMAKER 91

me if this actually generates current, there is evidently no limit
‘to what-a modelmaker is expected to do. The sand dome is of
brass and is a dummy.

The tender is built up of 1/32” brass, rivetted with small pins,
sweated and mounted on a 1/16” thick frame. The truck wheels
are %” dia. equalised and carried on laminated springs. The safe-

ty chains came from the 10c store. The handpump can be entirely
removed for repairs by removing four 1/16” nuts. Tank holds
' about % pint of water. Regular A.R.A. coupler on front, none on
_ back yet. The loco and tender empty weigh 914 lbs. Length of
engine over couplers 14”, tender 7144” height to top of stack 315/16
. width of cab 25%”.

_ Having no track the engine has not been tested thoroughly, but
lam getting a track and if any readers are interested I will test the
- loco accurately for speed, drawbar pull, etc. It runs along the floor
- at about 6 m.p.h. and on the stand it is impossible to stop it by grip-
_ ping the wheels. A 60 lb. load was hauled on an improvised track
~ aver a rough floor.

The engine is painted black but no attempt was made to give a
high class paint finish. After a run the engine is covered with
ashes and oil, and looks as if it had been through the great war and
_ time spent on painting would be wasted.

The engine has developed gradually. Two years ago it would
just stagger around on the stand at 50 lbs. now it buzzes around on
- 2 lbs. after getting warmed up. Maybe in time I will get it to haul
$ me along. If any readers would like further particulars I would be
glad to furnish same, and will be glad to show the loco running to
any “fans” who happen to stray this way.

I forgot to mention that the boiler has been tested to 200 lbs.
hydraulic pressure and shows small weeps of water at the staybolts
- but no bulging. I screwed the pop valve down and let the pressure
- rise to 150 Ibs. steam to see how the engine ran at this pressure and
the boiler did not seem to mind it.

Mr. Roy Haeusler, 87-45 191st
- Street, Hollis, Long Island,
j N. Y., would like to hear from
any of our readers living in his

Mr. John P. Brooman, Govern-
ment Wireless Station, Redhead,
N. B., Canada, is building a
model of the famous sailing ship
“Cutty Sark.” He would like to

vicinity, with the object of an
occasional meeting, as he is in-
terested in the construction of
models.

get in touch with anyone resid-
ing in his locality who is inter-
ested in the construction of
model boats and ships.

92 THE MODELMAKER

One of our readers writes us
that there are a number of
model ships to be seen on ex-

hibit in the following places:
The Metropolitan Museum of
Art, New York; Portsmouth

Athenaeum, Portsmouth, N. H.;
The Peabody Museum, Salem,
Mass., and The Commercial Mu-
seum at Philadelphia, Pa. We
might also add the New York
Yacht Club, who have some
very fine shiv models, but this
collection is only open to mem-
bers. If any other . reader
knows of additional places
where models of ships can be
seen we would like to hear
where they are located, so that
we can list them, Should any
of our readers interested in ship
models be contemplating a trip
to England this year, with a
visit to London, they would find
it to their interest to go to the
Greenwich Naval Academy,
where there is one of the finest
collections of model ships in the
world. This collection is open
free to the public on certain
days of the week.

If any of our readers have
locomotives, passenger, or
freight cars, they would like to

place on public exhibit where
they will be taken good care of,
write to Mr. R. H. Claudius of
the>N.o Y.-C. Re Re - Room: 2322;
466 Lexington Avenue, New
York: The N.Y: €;:R:-R. have
been featuring an Exhibit of
Railway Models for some time
in the gallery of the great hall
at the Grand Central Depot,
New York. Some of these
models have been returned to
the owner, and now they wourd
like to get other models to fill
up the vacant spaces. Mr.
Claudius will be glad to give
you full particulars.

5 ee, i eee eee ee ee OD he
i es aS Se iS Re
oA Sak: i
v ‘ - y
je pee :
P
;

AKRON ASSOCIATION OF
MODEL ENGINEERS
AKRON, OHIO

The Editor, The Modelmaker:
On Wednesday evening, May
26th, the regular semi-monthly
meeting of the A. A. M. E. was
held at the home of Mr. Grover
Merriman, our oldest member.
A business session was held,
followed by a fine luncheon
served by the host and hostess,
after which the boys were in-
vited to inspect the host’s very
fine and well-equipped machine
and experimental shop. This
was a rare treat for the mem-
bers. Mr. Merriman is one of
Akron’s oldest and finest me-
chanics: As the saying goes,
knows his “onions.” The club
is very fortunate to possess
such a fine, able mechanic in its
membership, and he holes an
honorary membership card.
This club has two honorary
members, the other being Mr.
H. Helmick, who is an engineer
and railroad shop mechanic,
also a fine modelmaker. These
two members have a “job” as

instructors to the club, and they
are always ready to help. We

certainly appreciate their mem-

bership and society. The boys
finally broke away from. the
said member’s shop at a wee
small hour.

The next meeting is called
for at the home of our Secre-
tary, Mr. R. W. Jacobs, in Ken-
more, on Wednesday evening,
June 10th, and looked forward
to by all.

Yours sincerely,
J. W. NEPTUNE,
Publicity Agent, Akron, Ohio.

a illustrated

In the last December issue of
the Modelmaker we featured an
article describing

Mr. G. H. Stegmann’s model of

the famous old U. S. Frigate

- Constitution, Old “Ironsides” as
- she was more familiarly called.
This old vessel, at the present

Congress _ has

time, is in very bad condition.
appropriated

$250,000, half of the amount
' estimated to put her into good

- throughout the country.

repair. The other half is being
raised by public subscription
It-may
seem, at first sight, a large sum

of money to spend upon the re-

_ pairs necessary to prolong the
_ life of an old ship, but it will
~ be money well invested if only
_ from an historical as well as a

patriotic viewpoint. She was a
very fine vessel in her day, and
did much, in her numerous

= fights, to uphold the honor and

- suppression
- Pirates.
- wishing to contribute to this
- worthy object should send their
~donations to the “Save Old Iron-
sides
Bank for
. Street, New-York.

prestige of the United States
not only near our own shores,
but in the Mediterranean Sea,
where she did good work in the
of the
Any of our. readers

Seaman’s
56 Wall

Fund,” The
Savings,

The “Woodworker~ and Art

Craftsman, Volume 16, contains
_ descriptive articles on the fol-
lowing: Many chapters on Wood
Carving, with folding sheets of

designs. Furniture Making, in-

- cluding tables, chairs, settees,

book cases, bookshelves, cabi-
nets, overmantles, dinnerwag-
ons, china cabinets. Carpentry,

the construction of gates and
fences, the laying of floors of
different~ kinds. Fretwork and

<.e

Barbary:

____THE MODELMAKER 98

scroll sawing, pattern making.
Forgework, decorative enamels
and jewelry making. Manual
training work. _Marquetry and
inlay. Bentiron work. Finishing
hardwoods. Repousse work. Pic-
ture frame making. Clock cases.
Pen and ink drawings. Fillers
for different kinds of woods.
Miscellaneous articles. Question
Box, ete. The articles are all
well illustrated. Twelve monthly
numbers, price $1.50 postpaid.

Model
contents

Engineer — Principal
fOr HA DEIN s 8, es ee
and .29:. A Twelve Volt Farm.
Lighting Plant. Machining the
Components of a Small Power
Petrol Engine. “L. B.S. C.’. on
Locomotive Construction. Elec-

trical Condensers. Accumulator
Charging. Locomotive Proto-
types. Small Steam Cylinder
Construction. Setting Out Sheet
and Plate Metal Fittings. Model
Speed Boats. Locomotive Cylin-
ders. An “O” Gauge Solid Fuel
Q0—4—2. Tank Engine. The
“Sunny Jim’ Two Cylinder Ma-
rine Engine for Model Speed
Boats. Turning a Two-throw
Crank Shaft. Electrical Measur-
ing Instruments. A 21%” Gauge
American Pacific Locomotive.
Model Marine Notes. Recent In-
ventions. Light Engineering
and Equipment. Queries and
Replies. Practical Letters From
Our Readers.

A CORRECTION

In the. Gerold . Company’s
Lathe Adv. for April and May
is a printer’s error in the price
of the No. 1 Lathe. The proper
price is $28.00, not $23.00.

When writing to advertisers
please mention The Modelmaker.

- De Marine”

THE MODELMAKER

WHAT'S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or

figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

Five large fine books full of
old time ship designs “Souvenirs
by Vice Admiral
Paris. $50.00 Express Collect.
Edgar L. Brown, c/o Schiffman
Jewelry Co., Greensboro, N. C.

Blueprints of the 2-ft. Model

Sail Boat described in the May.

issue, one large sheet full-size
lines and body plan, one sheet
sail. plan, price $1.50. EH. I.
Schock, 57 Edgewood Ave.,
Longmeadow, Mass.

Railway Centenary —_ 1825-
1925, being an exceedingly in-
teresting historical account of
the British Locomotive, cars
and signalling apparatus during
a hundred years of develop-
ment, with many illustrations
and some larger colored plates,
124 pages, 11 x 814” paper bind-
ing, $1.60 postpaid. Spon, 120
Liberty Street, New York.

Designing — Working draw-
ings prepared; calculation of
strength of materials; for your
models or actual size; inven-
tor’s ideas developed. E. H.
Grafton, 6542 Lincoln Ave., De-
troit, Mich.

Blue Prints of Ships for
Modelmakers, send for circular.
G. B. Douglas, {65 Summit Ave..
Upper Montclair, N. J.

FOR SALE

The Coming Sport—Buy your
sockets for your man-sized glider

from Icken, 903 Ray Ave., Ridge-
field, N. J.

Rough Sketching; The Han-

dy Sketching Book, consisting —

of sectional ruled paper,

plain |

eight squares to the inch, with

some useful tables, size 5 x 8,
bound in limp card to fit the
pocket, price $.35, Spon;
Liberty Street, New York.

Gears and Model Supplies of
every description. Catalog 5
cents. Exnerimenters eee

120-

House, Box 10, Station Y, New —

York City. “

WORK WANTED
I make patterns, small cast-

ings and working models. Model-—

making is my trade. James Koch,
103 Summit Ave., ee Pa.

WANTED |
Models, Railways. Aas iSéamoss

tives, back nos. and Vols. in
good condition. “Box 10, Model-
maker.

Everyday Mechanics, Nos. x 20
and 6 of Vol. 1, Nos. 1 2 and 3
of Vol. 2. Box 2, Modelmaker. —

American Institute of — Elec, |
Engrs. Volumes 1 $0: Pu _ Bom 4).
M odelmaker. ;

We have been notified by the

English Dublishers of the Model
Engineer that owing to the shut-

E down of the printing plants dur-
ing their recent National strike

the issues of the Model Engi-
_neer for May 13th and 20th will
not be published. We trust that
all our subscribers to that
magazine wil! bear this in mind
and sympathize with the pub-
_lishers in their misfortune. They
carried on all through the great
war and never missed the publi-
eation of a single issue. In
fact, this splendid magazine has
never missed an issue since the
publication of the first number
in Janwvary, 1898, until this last
unfortunate stoppage of a Na-
-tion’s business life. Let us all
wish them better luck from
now on.

yar

THE MODELMAKER

Pacific

Locomotive Castings

with drawings, $30.00 per set.

Most Complete on the Market
Castings for six-wheeled Pullman and

Vulcan Freight Trucks, in “O’" Gauge
and half-inch scale.

FRANK BIRCH
HIGHLAND PARK, MICH,

MODEL MACHINERY

Sole U. S. Agent for the noted Iing-
lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasuline,
Gas Engines, Boilers, Fittings and
Trimmings; Electrical Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “CABLE SERVICE”

Alfred Paul & Son, Engineers

3 Ashland Street
Melrose Highlands, Mass., bl. 8S. A,

Catalogue 25c, Coin or Post Office Order
1926 Catalopue Just Issued

Gen. Del.,

Belt Driven Air Compressor

lg H. P. delivers %4 cubic feet free air
per minute at 700 R. P. M. and 60 pounds
pressure.

Suitable for use with gas
torches, small air brushes, etc.
cludes full set of castings and check valve,
together with detail drawings for machin-—

blow pipes,

Price in-

ing same. Castings can be finished in
any lathe.
4 CURTISS PRODUCTS CoO.
= 700 Lake Street San Francisco, Calif.
J
*
_ FAST POWER BOATS
32” and 39” Construction. Sets.
Seale Model Locomotive Castings.
_. Freight and Passenger Cars.
4 Track, O ee. 1 Gauge,
Pr and 2%” Gauge. &
x Copper, Brass and Steel. Capacity: 4” dia. x 12” length.
- Rod, Tube and Sheet Cut to Size. Turning, Facing, Boring, Drilling,
= 2 Supplies of All Kinds. Winding, Thread Cutting
-—sW¥FITTINGS — PATTERNS No. 1 Plain Machine as above.......... $28

MACHINE WORK — CASTINGS

Models and Boilers Designed
and. Constructed,

2 "BLOWLAMPS. Up to 2” Diameter.
A. ALEXANDER SINGER & CO.
New York City

No. 2 Back-Geared, Screw Cutting $58

SEND FOR FREE 16-PAGE
CATALOG

Shows full details and accessories

THE GEROLD CO. (Dept. M15)
120 Liberty St., N. ¥. |

we Pee 9 eee © alee

96 THE MODELMAKER

4
4

(a ) il | lH He
Hl
| | il Wh

Ball ll | }

»
S
j,
Y

|
(
iy
\)
\

Ss
Get this Flexible and Portable
Shaft Outfit of a Thousand Uses

; This Flexible Shaft Outfit, a precision instrument, primarily designed
i for hard service, is indispensable for model makers, mechanics and for
machine shop use. There’s lots of pep behind it; it’s portable.

Consists of a ball-bearing coupling to connect to any motor or re-"
volving spindle, 3 feet of flexible shafting, and a ball-bearing chuck.’
Operates emery and buffing wheels, reamers, metal drills, files, burrs,”
and many other appliances. Simply place the tool in the chuck and~
the outfit is put to work. Runs as smoothly as a highly jeweled®
watch, :

s
A Few Uses Drilling and reaming holes in metal, wood or composi- |

tion, die-cutting, mold making, engraving; buffing and
polishing, rectifying dies and punches, cleaning solder joints, ete. A %4 horse-
power nee sega aaite is eas'ly obtainable at small cost. . In ordering, state”
size of motor shaft. he an

SPECIAL OFFER —-SEND ONLY $5.00

This Flexible Shaft Outft regularly sells for $45. As a special $ntro
ductory offer from our factory to you, send $5. with order and pay,
postman $20, plus postage, on arrival. Satisfac- af
tion guaranteed or money back, Order direct from
this advertisement.

The S. S. White Dental Mfg. Co.
(Industrial Division) 4
152° WEST: 42nd: ST. NEW. YORK, ‘Ne -Y.

—

FOR THOSE
INTERESTED IN MAKING:

MODEL OF TWO-CYLINDER AEROPLANE ENGINE
(Supported on Two Tobacco Tins)

Made by Mr. Roy E. McAdams

98 THE MODELMAKER . ;

FOR SALE

Rough Sketching; The Han-
dy Sketching Book, consisting
of sectional ruled paper, plain
eight squares to the inch, with
some useful tables, size 5 x 8,
bound in limp card to fit the

Capacity: 4” dia. x 12” length.
Turning, Facing, Boring, Drilling,
: Winding, Thread Cutting
pocket, price $.35, Spon, 120 No. 1 Plain Machine as above.......... $28

Liberty Street, New York. No. 2 Back-Geared, Screw Cutting $58
SEND FOR FREE 16-PAGE
CATALOG
WANTED Shows full details and accessories
Modelmaker, Volume 1, Num- THE GEROLD CO. (Dept. Mi16)9

ber 6, November, 1924. Model- 120 Liberty St., N. Y.

maker Volume 2, Number 5, MODEL MACHINERY .

May, 1925. Will send a copy of

. . Sole U. S._ Agent for the noted Eng-.

heme aie a ag, ee oe lish Engineers, Stuart Turner, Ltd.,
pon, erty street, ew makers of Model Steam, Gasoline,
York. Gas Engines, Boilers, Fittings and
2 ; Trimmings; Electrical Machinery.
American Institute of Elec. Horizontal and Marine Engines, Sin-—

Engrs. Volumes 1 to 8. Box 4, §na parts, otc, “CABLE SERVICE”
Modelmaker. Alfred Paul & Son, Engineers —
Everyday Mechanics, Nos. 1 2 3 Ashland Street _ :

f Vol. 1. Nos. 1 2 and 2 Melrose Highlands, Mass., U. 8. A.

and 6 0 erie ; Catalogue 25c, Coin or Post Office Order
of Vol. 2. Box 2, Modelmaker. 1926 Catalogue Just Issued
THE MODELMAKER
BOUND VOL. I. 1924. _ $1.60 60 4

or return your. numbers to us with $1. 10 and we will mail you a new bound copy. #

BOUND VOL. II. 1925. $2.10 a

or return your numbers to us with $1.10 and we will mail you a new bound copy. Z
We still have a few copies of Nos. 1, 2, 3, 4, 5 of Vol. I. Price 10c each.
We still have a few copies of Nos. 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. 24

Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York
BLUE PRINTS OF PACIFIC “0” GAUGE LOCOMOTIVE

FAST POWER BOATS

32” and 39” CONSTRUCTION SETS
SCALE MODEL LOCOMOTIVE CASTINGS
BLOW LAMPS Up to 2 In. Diameter
FREIGHT AND PASSENGER CARS
TRACK — “O” Gauge, 1” Gauge and 2%%”’ Gauge
MODELS AND BOILERS DESIGNED AND BUILT
Copper, brass, aluminum and steel rod, tube and sheet cut to size.

FITTINGS, PATTERNS, MACHINE WORK, CASTINGS
HEX BOLTS AND NUTS (an assortment in small sizes, Am. threads).

When writing please state fully your requirements

A. ALEXANDER SINGER & CO. —

15 MOORE STREET, NEW YORK

pit a? ) 2,

Ne a ne RY eee et a eee ee,

; te

THE MODELMAKER

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST.. NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol.

SIND. ue

“Entered as second-class matter M ar. 27, 1925 at the Post Office at
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

One of the most difficult op-
erations for the Modelmaker is
the painting, or enameling, of
his model.

Metal work should first be

thoroughly cleaned with gaso-

line or benzine (which is better
done in the open air). Be sure

to remove all grease, rust and

corrosion before attempting to

do any painting,

otherwise the

- first coat of paint will not ad-

here,

or dry. Good paint and

good brushes only should be

used.
The first or priming coat

should be laid on lightly, but do

not have the paint too thick.

It may be advisable to thin it
down with a little turpentine.
The priming coat should be al-

lowed to dry thoroughly;

this

_will make it easier to apply the
next coat evenly.

In some cases it will be found

more expedient to paint the in-

~ dividual
them

assemble
especially

parts and
afterwards,

where there are a number of
nickle, steel or brass parts.

Locomotives, passenger and

_—

| Please do not forget to men-
_tion The
writing to our advertisers.

Modelmaker when

freight cars—according to the
regulations of the railway.

Marine engines—according to
the regulations of the line.

Brass work—lacquered.

Boiler and cylinder laggings
of Russian iron—dull black, or
oiled.

Cylinder lagging of wood—
varnished, or oiled.

Passenger and freight trucks
—dull black.

Boat hulls — mahogany,
cedar, marine varnish.

Painted hulls—prepare the
surface, thoroughly smoothing
down with fine sandpaper. Use
flat paint to build up a good
body. The more coats the bet-
ter the body. Let each coat dry
then rub down lightly with 00
steel wool. Finish with glass
enamel, or marine varnish.

Inside of hull—one or two
coats of flat paint, or shellac
varnish, to protect the wood
from damp.

We shall be glad to receive
comments from any reader as to
his experience, especially as re-
gards to the lettering on
locomotives.

When writing for information
please enclose a stamped and
addressed envelope.

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mo THE MODELMAKER 101

MODEL BRITISH S. E.5 A. SINGLE-
SEATER FIGHTER

By OSCAR SCHUWENDT

(Drawings by the Author)

(Continued from Page 87)

_ Sheet 3 shows the details of the various wings and surfaces for
‘the model. Very little comment will be necessary other than
that it will be well to cut several ribs out of fairly thick wood
and then split them into several thinner ones with a fine tooth
saw rather than attempt to cut each thin rib to the required profile.
Also in regard to the covering material used on the planes and
body. It will be noted that the note on this drawing calls for silk.
This need not be strictly adhered to, as any light material ordi-
; narily used for model aeroplanes will suffice. If a very light grade
of silk is obtainable that is the ideal thing to use. The writer
used some old silk handkerchiefs on his model. By doping the
material either with the suggested solution or with a standard
preparation sold by model aeroplane dealers, the covering should
be drawn up to a nice tight finish. The original plane was painted
brown on top and yellow below, while the writer enameled his
~ model black both on top and below, copying after an S. E. 5 plane

Which was in a Government flying circus touring the country at

about the time the model was being built. This is the only really
‘serious deviation from the prototype. The drawing of the main

wing shows a flexible wire running through inside the wing con-

necting the two ailerons together. The purpose of this is, of
course, to make the ailerons work together in the conventional
_ manner as on the large aeroplanes, and should be in both upper
and lower wings. It should be noted that this wire must be very
_ flexible indeed to accomplish this result, and it is doubtful whether
it is worth the trouble, as each rib must be drilled for the wire
; to pass through, and the small brass tubes must be set exactly
right. These holes are not shown in the rib profile. In the case

of the writer’s model the wire was too stiff, and about the second
or third time that the ailerons were forced into action the wire
- broke, which necessitated the removal of some of the wing covering
' to repair the damage and then the trouble of replacing it. Since -
- then it has never been tried to work the ailerons. It is entirely

up to the builder whether or not this is.put in. Although the gap

THE MODELMAKER

102

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THE MODELMAKER 103

‘at the aileron and tail plane hinges is shown as % inch, it is well
to keep it smaller than this if possible, as a much neater job will
be had.

Sheet 4 of the drawings shows a number of small details which
are for the most part clear enough without description. The rub-
ber shock absorbers on the landing gear are by no means essential
but increase the fidelity of reproduction, and are also a great
novelty to any one viewing the model. The propeller hanger shown
serves merely as a support for the propeller shaft, and would have
to be redesigned for a fiying model. The Hispano-Suiza motors
are quite novel and, as the photographs will show, look quite
like the real thing when properly put together and painted.

No details are given for the windshield, as this is merely a small
piece of celluloid mounted at a slight angle in a small ridge of
thin wood glued to the top of the body in the position shown, and
is of the size given on Sheet 2 of the drawings. The photograph
will also help to make this clear.

It is not intended that the builder must necessarily follow the
suggestions as laid out above, but that with the aid of the draw-
ings and-by exercising his own ingenuity it is the writer’s opinion
‘that a very presentable model true to type can be produced.

We have before us a very small

; model of the Brigantine “Breda”

of Boston.

tusk.
1/32” to the foot by Mr. H. O.

The hull, masts and
spars are all cut out of a Walrus
It is made to the scale of

_Havemeyer, Jr., and is a very
clever piece of work. ~The pro-
_totype was built at Portsmouth,

N. H. in 1852 and was used by

Russel & Co. in the opium trade
between India and Canton. The

Model is mounted
case with a glass front.

soft

in a cedar
Mr.
Havemeyer has built a number
of ship models, one of his best

was the ‘“Vikin Ship” described
and illustrated in the March is-
sue of the Modelmaker.
gore he will favor us with de-

- scriptions of other of his models.

Mr. William C. Niesen, 45
Scott Street, Carbondale, Pa.,
would like to get in touch with
any of our readers living within
a reasonable distance of his
town with a view to an occa-
sional get-together meeting. Mr.
Niesen is particularly interested
in Locomotive models. A good
many heavy coal trains pass
through his town, which is sit-
uated in quite a mountainous
section of Pennsylvania. Some
of the grades are very excessive
necessitating the use of two
heavy freight locomotives as
pullers ‘and two of the huge
mallet type mountain locomo
tives as pushers. Four loco-
motives being necessary for a
loaded coal train of about 60 to
65 cars to surmount the grades.

104 THE MODELMAKER

MODEL AEROPLANE ENGINE

MR. ROY E. McADAMS

Al ltt ihe hy itealinli t ll leee

The engine described and illustrated in this article is the out- —
come of experiments from time to time covering a period of several
years.

It is designed especially for the propulsion of model aeroplanes, ~
but could no doubt be used for other purposes where an air cooled
engine of its power output would be suitable.

The writer does not claim that this engine is the last word in :
resign, but hopes it may be helpful in stimulating a greater interest ~
in model gas engines. As far as the writer can find out, there are ©
very few mcdel makers interested in gas engines.

The engine is 14%” BORE and STROKE respectively. It is Four —
Cycle valve in head type. Automatic inlet valves are used while the
exhaust valves are mechanically operated by over-head rockers and }
long push rods.

¥, H.P. is developed at a speed of about 1,500 R.P.M. The weight
of engine as shown but without propeller is 3% pounds. , :

As light weight is essential since it is designed for airplane
models, aluminum alloy was used extensively in its construction.
The crank case is cast in halves, one-half carrying the timing
gear housing, and the other half has pads for breather pipe as well
as oil test cock. Bronze bushes are used throughout for main bear- —
ings as well as cam shaft and tappets. .
Brass timing gears are used and the cam shaft and cam is made
from one piece of tool steel. |
The crank shaft is turned from the solid and cold rolled steel
was the material used. This material has been found entirely satis-—

factory as to strength and wearing qualities, besides being much »
easier to machine than tool steel. .

Bronze connecting rods of H section are sed: They are exactly
similar to rods used in large engines.

te»

The cylinders are aluminum castings with air cooling flanges.
The readers may wonder why the flanges are so few in number and
why they were cast on instead of being machined from solid. |

In the first place casting them saved considerable lathe work, and
the writer has found from experience that flanges spaced very
closely do not have nearly as good cooling qualities as those more

: f

f THE MODELMAKER 105

_ widely spaced. The heat seems to vibrate back and forth between
narrowly spaced flanges.

“4 As aluminum is hardly suitable for the wearing surface of cylin-
ders, steel liners are shrunk in the cylinder castings and then fin-
“ished to correct bore. This form of cylinder construction results
in a very light cylinder of good wearing qualities and the aluminum
_ radiates the heat faster than other metals.

Aluminum alloy pistons fitted with three, step cut, cast iron
- concentric rings are used.

The pistons follow orthodox piston construction in all details.
The writer uses two rings in the same groove at the top of piston
and finds it superior to rings in a separate groove. The wrist pins
are held from moving by a set screw.

In the cylinder heads are located the valves and spark plugs. The
_ heads were made from cast iron as it was feared that difficulty
might be experienced in holding securely the valve seats if the head
"was made from aluminum and valve seats cast iron. The valves
e are made from steel and are of ample size.
__ The spark plugs are miniature ones of mica type, and are entirely
satisfactory. They are imported from England by the writer.
‘ As can be seen from photo a float feed type of carburetor is used.
_ As it is rather small some difficulty was experienced before one of
~ correct proportions was evolved. A small copper float is used and
é two small levers actuate the needle valve the same as in some large
carburetors. An automatic auxilary air valve takes care of speed
_ changes.
= This carburetor is much superior to the simple mixing valve,
_ which was tried at first. A long curved intake pipe leads mixture
to engine.
4 The pads are silver soldered where carburetor fastens to intake
pipe. The carburetor can be easily taken apart for cleaning and the
"moving parts are few in number.
€ The engine is shown fitted with a simple form of timer, which of
course requires two spark coils. Since photos were made a small
interrupter and distributer has been constructed.
- An ordinary Ford coil was at first used, but as it is rather heavy
: - the writer conducted experiments with small coils, and finally suc-
ceeded in making a coil which develops a very intense spark, and
weighs only 8 oz. as against 1% to 2 lbs. for the ordinary coils as
found on the market. The small coil has been tested along with
the commercial ones and if anything fires engine better. This is
probably because of the greater vibrator frequency used.

106 THE MODELMAKER

The propellor shown in photo is 20” diameter, 13” pitch and is
of cast aluminum. As this propellor weighed 1 pound it proved
to be a little too heavy for engine to swing properly.

The writer’s good friend, Mr.. Harry Edward Moyer of Lebanon,
Pa., who is an expert on model aeroplanes, designed and built a
26” diameter, 16” pitch propellor especially for this engine. It
weighs only 6 oz. and the engine spins it nicely. From what can be
seen during bench tests, the propellor shows itself to be highly
efficient.

While no exact speed measurements have been made, the engine
spins the lighter weight propellor at about 1,200 to 1,500 R.P.M.
which is about right for model airplanes.

The writer wishes to state that the tuning up of one of these
engines is somewhat difficult, as such a small engine is very sensi-
tive to the slightest adjustment. But after properly tuned up it
runs very nicely provided it is not overloaded.

Four ounces of gasoline is sufficient for 30 minutes run at full
speed, and % to 1 oz. of oil suffices for the same. Splash lubri-
cation is used and has proven satisfactory.

The principle over-all diMmsnsions of engine might prove of
interest.

Over-all width across rocker arms, 1114”.
Over-all length across carburetor and propellor hub, 8”.
Height above engine bed 21%”.

The Annual Model Engineer
Exhibition will be held this year
in London opening on Septem-
ber the 17th and closing Septem-
ber the 25th. Any of our read-
ers who are contemplating a
trip to England this summer
‘should certainly take in this
splendid exhibition. It will be
held at The Royal Horticultural
Hall, Westminster, London, S.W.
1. Perhaps some of our men
would like to enter Models for
exhibition. Address’ Percival
Marshall & Co., 66 Farringdon
St., London E. C. 4, for full par-
ticulars.

Model Railway News, contents

for June. Mr. A.
Portable ‘“OO”
Yard. Layout,
Equipment. Model

Signalling;

Gauge

Railway

R. Walkley’s —
Goods ©
Running and

Junction Interlock- —

ing of Points and Signals. Light

Railways as Prototypes, 0—6—0
Saddle Tank Locomotive. Con-

struction of an “O” Gauge Model |

Railway. Mr. N. Evans’ ‘OO”
Gauge 12-Wheeled Pullman Car.
Mr. N. Evans’ “O” Gauge L. N.

W. R. Model Railway. Mr. H.
M. Lane’s Gauge 1 Clock Work —
Model N. E. R. 0—4—4. Tank ©

Locomotive.
Sale and Exchange, etc.

Our Mailbag. For

oF Te eee

THE MODELMAKER

: done With accuracy,
and speed. ‘To illustrate let us
take a cylinder as sketch, Fig. 1,

‘ficult if

DRILLING HOLES AT AN
ANGLE

By H. J. Coventry, M.E.

It is often required to. drill

holes in a definite location and

angle to a circular surface, such
for example as ports in a
cylinder bore and while, to
attempt to start the drill
on the angle would be dif-

not
spending a little time in making
a suitable jig the job may be

impossible, by

certainty

which has been bored and faced.
It is required to drill steam
ports so that the edge of the
eclipse formed due to the angle
Shall be a known dennite di-

107

mension. Dimensions: are given
as illustration of the procedure,
but the reader will of course
apply any dimension and angle
he desires.

Proceed as follows:—First lay
out an accurate drawing (either
on paper, or tin plate) of sec-

tion of cylinder putting in the
port at
position.

its proper angle and
Draw the center line

N
SE
Vac: POP BEFORE DRILLING

of port and continue it across
the center line of bore. At
some convenient point below
center line of bore draw a line
at right angles to center line of
hole. xx Fig. 1. From intersection
of these two lines step off a
distance ‘“‘d” along xx, such that
it is a trifle more than half
diameter of drilled hole. The
amount is not important, but the

108 THE MODELMAKER

above provides the least amount
of labor in making the jig. From
“q”’ draw a line vertical to bore
center line yy. Now we are ready
to proceed with the jig itself.
Select a piece of steel a little
longer than cylinder bore and
turn it down to a nice close fit
in cylinder bore and turn outer
end to a smaller diameter,
which should be screwed for a
nut and washer. Don’t forget
to make the body port say 1/16
shorter than bore so that the
cylinder will be gripped between
the shoulder at one end and the
washer at other. Part off the
piece slightly longer than di-
mension “e’ measured from
drawing, turn round in chuck
and face off exactly to dimen-
sion ‘fe’ from shoulder. Next
by means of the center square
scribe a line across the dia-
meter f.f. Fig. 2 and then with
the jig lying in a V block on
surface plate, scribe another
line at right angle g.g. and from
the line g.g. scribe another line
b.h. at a distance from it equal
tO: ep onsen,

It is as well to carry line f.f.
along body by means of sur-
face gauge and from shoulder
mark off a distance equal to
“a,” aS measured from Fig. 1.
Make a center punch mark here.
Now file a flat at the correct
angle to face of end of jig, and
continue filing till the line h.h.
is met. The angle may either
be maintained with the Starrett
or B & § protractor or alter-
natively make a template of
angle from the drawing. Having
produced the flat satisfactorily
again lay the jig in the V block
and with surface gauge mark
off the distance equal to b from
line g.g. Turn the jig round
and scribe through line f.f. part
of which has been filed away.
Center punch the intersection

carefully, this is the center of "
required hole. To drill it either ;
hold in a machine vise on drill
press so that face m.m. is hori-
zontal, or mount on tool post of
lathe setting the jig so that the
pop mark on body is in line
with tailstock center and center
pop on angle face is in line with
line center. Bolt down securely, —
start with a Slocomb center
drill and then run right through
with required size drill. Do not™
feed too heavily and the drill
should break through exactly on
the dot made on body this will
indicate the accuracy of your:
drilling.

In using the jig make the line
f.f. which has been continued
along the shoulder portion reg-
ister with the location of hole
in cylinder and in starting to
drill take light cuts until the
drill has got well into the metal.
The more acute the angle of
hole the more care must be used
or a broken drill will be the re-
sult.

Such a jig can be made in al-
most less time than it takes to
write this note and satisfaction
will be obtained in having the
holes exactly where wanted and
moreover the edges of holes on
inner and outer face will be per-
fectly clean.

One of our Brookline, Mass.,
readers writes us that besides
the Ship Model Exhibit in the
Old State House, Boston, which
contains Col. W. F. Spier’s beau-
tiful model of ‘Old Ironsides,”
there is quite a collection of
models of ships in the new home
of the State Street Trust Com-
pany, Boston. The finest model
in this collection is undoubtedly
the reproduction of Donald Mc-
Kay’s last ship, “The Glory of
the Seas,” which, like a number
of his other vessels, was de-
stroyed by fire. ; |

THE MODELMAKER

: as s ‘
# Model Engineer, principal con-
tents for May 6, 27 and June 3,
“10, 17. An Extraordinary Old

Clock and Its Necessary Repairs. .

‘Practical Experiences with the
Daniel Cell. A Model Steam
Road Wagon. Machining the
Components of a Small Power
_ Petrol Engine. Simple Drill Jig
for Screw. Clock Electrical
Control Apparatus. A Column
of Live Steam. The Auto-Heat
Gas Blow Pipe. Model Yacht-
‘ing Notes and News. An Ar-
ticulated Steel Rail Motor
Coach. A Southern Railway
4—4—-0 Maunsell Locomotive.
Making Press’ Tools. Small
Water Power Electric Lighting
Installations. Keeping an Aq-
-uarium in Working Order. In
_the Glow of the Forge. A Petrol
' Motor for Model Power Boats.
1%" Bore by 1 5/16” Stroke,
Weight 3 lbs. 9 ozs. Complete.
_Atmospheric Electricity. Mak-
ing Primitive Objective Lenses
for the Microscope. Fitting
New Valves and Guides to an
Old Gas Engine. Electrical Con-
- densers. Recent Inventions. Air
' Transport. Model Yachting in
Natal. Some Notes on Cutting
Speeds for Various Metals,
_ Valve Timing for Locomotives.
An American Model Steam Trac-
tion Engine. Model Yachting
- Association Notes and News.

- Mr. Frank Birch of Highland
_ Park, Detroit, Mich., has recent-
‘ly placed on the market some
four wheeled and some _ six
_ wheeled trucks for passenger
and freight cars. Any of our
readers interested in this work
should get in touch with Mr.
Birch and let him know that you
are interested in this subject.
You may be able to do some
_ business together to your mutu-
al advantage.

Mr. Louis Marey has been in-
terested in the construction of
models for a number of years.
He has built quite an assort-
ment: a battle ship 52” long; a
destroyer 4” to 1’; a clock
model with a procession of saints
at certain periods of time, etc.
His latest desire is to construct
a Mallet type locomotive. He
would like to get in correspond-
ence with any of our readers
who have built one of these
locos, or is contemplating the
construction of such a working
model.

Mr. Vincent V. Hubbard, R. F.
D. No. 1, East Alton, N. H. is
looking for some information on
the construction of a 244” gauge
electric locomotive. He would
be pleased to hear from any of
our readers who could give him
a little information on this sub-
ject.

Mr. H. Jaffers, Saginaw, Mich.
is interested in model steam en-
gines. He would like to hear
from any model fans in his dis-

' trict with a view to an occa-~

sional meeting. These little
friendly gatherings are doing
much to increase the interest in
model work not only amongst
old timers, but amongst the ever
increasing number of new men
who are mechanically inclined
and who would like to get into
the game.

When you have finished your
Model send us a photograph with
a short description of its con-
struction and general particu-
lars. We shall aiways be glad
to receive such notices because
what has interested you will
also interest our readers.

110

THE CHICAGO SOCIETY OF
MODEL ENGINEERS

Chicago, III.

The Modelmaker,
Dear Sirs:

The Cc. S. M. E. is holding its
meetings regularly in room 921,
Kimball Hall, Chicago on the
second and fourth Thursdays of
each month. Anyone interested
in a visit to the Society will be
cordially welcomed.

On Saturday, June 5th, the
members inspected the Craw-
ford Avenue HElectric Plant of
the Commonwealth Edison Co.

We held our annual informal
picnic to Dunes Park on Sun-
day, June 20th, and a good time
was enjoyed by all.

For our next trip we are plan-
ning to inspect one of the steel
mills near Chicago.

With many good wishes for
the Modelmaker and model en-
gineering in general, I remain,

A. WILLARD,
905 Linden Ave.,
Wilmette, Il.

BOOK REVIEWS

Metal Plate Work by C. T.
Millis, Fifth Edition revised and
enlarged viii, 503 pages, 312 il-
lustrations, 74%” x 5144”, $3.00.

This is the fifteenth printing
of this well known work which
fully covers the subject of lay-
ing out patterns to all kinds of
metal work including many un-
usual forms of patterns for the
use of tin, iron and zinc plate
workers. coppersmiths, boiler:
makers, plumbers and engineer-
ing students. The Geometri?
svstem vsed is acknowledzad tc
be alter years of application the
test system for laying out this
kind otf work.

THE MODELMAKER

‘Model Engineers Society.

Mr. George W. Daniels,

Craig Avenue, Freeport, Long

>§

Island, N. Y. has been very ~

much interested in the building

of models for a number of
years, especially machines and —

steam engines.

He would very —

much like to get in touch with

any pf our subscribers within

easy reach of his home with a
view to an occasional meeting, ©
and if there are enough men in ~
his district interested in this
delightful pastime it would be

Engineers Club.

Mr. David L.
wood Ave., Toledo,

for sometime.
hear from any of our readers,

. residing near his city with the

‘excellent opportunity for —
them to organize a small Model |

Stine, 233 Scott-—
Ohio has
been interested in model making
He would like to

object of having an occasional —
gathering of gentlemen inter-—
ested in this subject, with a

view to the formation of a
We
hope he will hear from a good
many of our readers.

Another of our siatiges has

~~ ae era

sent us the addresses of the fol-—
lowing places where some fine
ship models may be seen. The
Marine Room of the Old State

House, Washington Street, Bos-
The Old Dartmouth Mus-

ton.

eum of New Bedford, which has

a half size model of a Whaler,
50 feet long on deck, 85 feet
from end of bowsprit to the end

;

of spanker boom and 45 feet to

top of mast.

It is complete in

every detail and is so arranged
that you can walk all around —

it,-go on board, and go down

into the after cabin. The Com-

mercial Museum in Philadelphia
have also a number of models |

of ships. .

THE MODELMAKER

In the May issue of the Model-
maker a reference was made to
the Model Locomotive competi-
tion. The closing date was
given as June 1. This has been
extended to September 30. The
Silver Cup has been donated by
Mr. H. O. Havemeyer, Jr. The
competition is open to members
of the N. Y. S. M. E. Full par-
ticulars can be obtained from
Mr. A. A. Singer, Sec’y, .15
Moore Street, New York, N. Y.

Abraham & Straus of Brook-
‘lyn are featuring an exhibition
of Model Boats including some
very fine exhibition Models, one
of a war ship, a steam yacht and
a schooner yacht, also a few
model power boats and a num-
ber of fine Sailing Yachts and
small boats. They also show a
case of silver cups, which this
‘firm have donated for prizes to
be raced for on September 11th,
on the lake in Prospect Park,
under the Management of the
Prospect Park Model Yacht Club.

The following races are open
to all comers:

ist race—For Models 30” or
longer over all.

2nd race—For models 20” to
29” over all.

38rd race—For Models under
20” over all.

Sailing Races for members’
Boats.

— 1st Race—Handicap, open to
all large boats including ‘“B”
Class, course windward, and re-
turn, twice around the course.
» 2nd Race—‘C” Class, triangu-
lar course, once around.

8rd Race—For Junior Mem-
bers, course windward and
return once around.

_ This series of races should
prove very attractive to the
Model Sail Boat owners and the
handsome silver cups are cer-
tainly worth competing for.

3
‘
4

ine

For full particulars write the
Secretary, Prospect Park Model
Yacht Club, Prospect Park,
Brooklyn, New York.

The last meeting of the New
York Society of Model Engineers
was. a very interesting one.
There were twenty-four mem-
bers present. Any of our read-
ers who are not already mem-
bers should enter their name for
membership. The dues are only
$2.00 per annum. There are two
competitions open for members.
A silver cup will be presented
to the winner of each—a Loco-
motive competition and a Model
Power Boat competition. The
Secretary, Mr. A. A. Singer, 15
Moore Street, New York, shall

be very glad to. give full
particulars.

Mr. Earle M. French, 110
Monatiquot Avenue, Braintree,

Mass., is very much interested
in Modelmaking. He would like
to get in touch with any Model-
makers residing in or near Bos-
ton with a view to a get-together
meeting in the hope that he can
find enough enthusiasts to form
a Model Engineers’ Club.

We have frequently been
asked for good drawings of an
“OO” gauge locomotive. ‘Mr. A.
A. Singer informs us he has a
set of three large scale drawings
to detail of a~ Pacific Steam
Locomotive “O” gauge, and an-
other drawing to make the model
electrically driven instead of
using steam. The steam type
loco, but electrically driven,
seems to be a very popular
model.

When writing for information
please enclose stamped and ad-
dressed envelope for reply.

112

THE MODELMAKER

WHAT’S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or

figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

YQ" Scale Pacific Locomotive
Castings, newly designed most
complete set on the market.
$30.00 including detail drawings.
Vulcan Freight and Six wheeled
Pullman trucks in %” scale.
Vulcan and Passenger trucks in
“O” gauge. 5 cts for list and
further information. Boiler fit-
tings, etc. Frank Birch, General
Delivery, Highland Park, Mich.

Four Blue Prints. Model Brit-

ish S. E. 5, A. single-seater fight- -

er, full details. Write O. Schu-
wendt, 1046 Blackstone Avenue,
Fresno, Calif.

Learn to be an Aviator buy

your glider parts from Icken,
903 Ray Ave., Ridgefield, N. J.

Blue Prints of Ships for
» Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Railway Centenary — 1825-
1925, being an exceedingly in-
teresting historical account of
the British Locomotive, cars
and signalling apparatus during
a hundred years of develop-
ment, with many illustrations
and some larger colored plates,
124 pages, 11 x 81%” paper bind-
ing, $1.60 postpaid. Spon, 120
Liberty Street, New York.

Designing — Working draw-

ings prepared; calculation of
strength of materials; for your
models or actual size; inven-
tor’s ideas developed. E. H.
Grafton, 6542 Lincoln Ave., De-
troit, Mich.

Locomotive Blue Prints—‘‘O”
3 sheets, steam, .

gauge Pacific.
full details, $2.00. 1
steam-electric, 75 cents.
15 Moore St., New York.
Patrick 4 In. Swing Lathe,
slide rest, back gear, drilling
machine, countershaft, grinder,
1/6 H. P. A.C. motor, 2 vices;
42 copies
date, Locomotive

sheet,

Model Engineer to
Cyclopedia,

Singer, ©

Greenley’s Model Steam Loco-

motives, Smith’s Advanced ma-

chine work, Hayward’s ignition
starting and lighting. First
$35.00 gets lot. Carter, 224 S.
Seventh St., Olean, N. Y.

WANTED

Models, Railways and Locomo-
tives, back nos. and Vols. in
good condition. Box 10, Model-
maker.

Drummond 4 In. Screw Cutting
Bench Lathe—Second hand, in
good condition. Grafton MclIn-
nish, P. O. Box 516, Plainview,
Texas.

WORK WANTED
I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.

FOR THOSE
INTERESTED IN MAKING

WORKING MODE

Vol. Ill, No. 8 AUGUST, 1926

A MODEL ELECTRIC CRANE. MADE BY
MR. C. HARRY SQUIER

LEED TEI WS EEN ATES TE ELC E EEDA ELE CELLET SEEGERS LATE ER EVEL GEELL NLS ALE ELE LEDGE NT OES ONS
4
~

114 THE MODELMAKER

WADE MODEL MACHINERY

73 Bench Sole U. S. Agent for the noted Eng-
4 lish Engineers, Stuart Turner, Ltd.,
Lathes = =makers of Model Steam, Gasoline,

ein ppiecg s ” Gas Engines, Boilers, Fittings and

Capacity: in dine SAA’ lenety: Trimmings; Electrical Machinery.

Turning, Facing, Boring, Drilling, Horizontal and Marine Engines, Sin-

Winding, Thread Cutting gle to Triple Expansion. Castings

No. 1 Plain Machine as above.......... $28 and parts, etc. ‘“‘CABLE SERVICE.”

No. 2 Back-Geared, Screw Cutting $58 .
SEND FORCERER 16.PAGH Alfred Paul & Son, Engineers
CATALOG 3 Ashland Street
Shows full details and accessories Melrose Highlands, Mass., U. 8S. A.
THE GEROLD CO. (Dept. M17) Catalogue 25c, Coin or Post Office Order
120 Liberty St., N. Y. 1926 Catalogue Just Issued

THE MODELMAKER
BOUND VOL. I. 1924. $1.60

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. II. 1925. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy.
We still have a few copies of Nos. 1, 2, 3, 4, 5 of Vol. I. Price 10c each.
We still have a few copies of Nos. 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. 2.
Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

BLUE PRINTS OF PACIFIC ‘‘0” GAUGE LOCOMOTIVE

FAST POWER BOATS

32” and 39” CONSTRUCTION SETS
SCALE MODEL LOCOMOTIVE CASTINGS
BLOW LAMPS Up to 2 In. Diameter
FREIGHT AND PASSENGER CARS
TRACK — “‘O” Gauge, 1” Gauge and 2%’’ Gauge
MODELS AND BOILERS DESIGNED AND BUILT
Copper, brass, aluminum and steel rod, tube and sheet cut to size.
FITTINGS, PATTERNS, MACHINE WORK, CASTINGS
HEX BOLTS AND NUTS (an assortment in small sizes, Am. threads).

When writing please state fully your requirements

A. ALEXANDER SINGER & CO.

15 MOORE STREET, NEW YORK —
JUST PUBLISHED

SHIP MODEL MAKING

at OM TO MAKE WORTH-WHILE MODELS OF DECORATIVE SHIPS
By CAPTAIN E. ARMITAGE McCANN

Price $2.50

With Colored Frontispiece Profusely Illustrated — Scale iiien
A PRACTICAL and TIMELY book which tells how any handy person can make
models of a Picturesque Barbary Pirate Felluca and a Beautiful Spanish Treasure ;
Galleon, with a few simple tools and almost without expense.
The author gives full-sized drawings of every part required. This book describes
how to make them, what material to use, how to fasten together and color them, —
how to make the spars and rig the ships. The book describes everything in detail. —

SPON & CHAMBERLAIN, 120 Liberty St., New York

THE MODELMAKER

Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

“Entered as second-class matter Mar. 27, 1925 at the Post Office at
New York, N. Y. under the Act of March 3, 1879.”

OUR FOREWORD

On another page of this issue
will be found a letter from one
of our readers asking for the
speeds attained by the fastest
Model Power Boat in the U. S.

We would be glad to hear
from any of our readers who
have actually witnessed such
performances. There have been
some rather absurd claims made
to the speeds of certain model
power boats, but to the best of
our knowledge no official speed
results have ever been publish-
ed. Except in the case of the
model power boat competition at
Put-in-Bay in the Fall of 1924
which was run under the man-
agement of the officers of The
Detroit Model Yacht Club. These
official results were published in
the September 1924 issue of the
Modelmaker. Faster time could
have been made at this particu-
lar race if there had not been
such a strong wind and rough
water. In the January, 1925,
issue of the Modelmaker is a
description of an 8 cylinder uni-
flow model marine engine built
for a 6 ft. metal model boat.
It had a very powerful blow
torch and large _ steel boiler
which supplied the engine with

an abundance of steam at 200 lb.
pressure. It was claimed for
this boat that it did 25-miles per
hour, but we are not aware that
any official time keeper was
present at the test. Though it
is quite possible with such a
powerful installation this speed
was attained if not even greater
speed.

No doubt many of our readers
would like to see this particular
boat thoroughly tried out.

The most satisfactory way
would be to use the pole and
100 ft. steel wire and run the
boat in continuous circles as
long as the steam would permit.
This would enable a competent
man with a stop watch to record
the actual time consumed on
one, two, or more, complete
circles also on the complete run.
It would then be an easy matter
to compute the correct distances
covered in a given time. That
would officially establish the
actual performances of this par-
ticular boat. We believe this
boat was of the deep keel type
with a single propellor. With
such a plant in a hydroplane or
sea sled type of hull the speeds
obtained might be quite surpris-
ing. The size and shape of the
propellor would have to be care-
fully considered to get the best
results.

116

Model Engineer, principal con-
tents, June 24, July 1, 8, 15 and
22. A 1%” Scale Model Express
Locomotive 4—6—0. Gauge
Ring for Boring. “Is B. S.C.”
Building Locomotive Tenders. A
Precision Plane. A Model Jet-
Condensing Table Engine. Build-
ing a Half Horse “Hartop”’ Gas
Engine. A Small Scale Cattle
Steamer. A Cone Grinding Ac-
cessory. ‘“L. B. S. C.” Gauge
“O” Pacific Boiler. ‘Model of a
Man-of-War of about 1750. Boat
Building and Sailing in South
Africa. Private Workshops. In-
structional Model of Walschaerts
Valve Gear. A Model 90 Twin
Petrol Engine 11%” Bore 11%”
Stroke. Making Small Steam
Cocks and Valves. Stamping
Fixtures for Small Jobs. High
Tension Battery Charger. A
Stationery Steam Engine With
Some Novel Features. Ejector
or Steam Jet Pumps. Acetylene
Welding with Small Shop. Ma-
chining a Split Bush. Recent
Inventions. Queries and Re-
plies. Light Machinery. Yacht-
ing Notes. Society and Club
Doings.

BOOK NOTICES

Diesel Engines, Marine; Loco-
motive; Stationary, by David
Louis Jones. xviit565 pages,
341 illustrations, 9144x644 in.,
cloth, price $5.00.

A practical treatise on the
principle, construction, opera-
tion and maintenance of the
Diesel Oil Engine, both Marine
and Stationary types, with a de-
scriptive chapter on the latest
developments in Diesel Locomo-
tives and Diesel electric drive
for ship propulsion. Contents
of Chapters: 1, Elementary
Thermodynamics. 2, Elementary
Principles. 3, Comparative Ef-
ficiencies. 4, Details of Con-

THE MODELMAKER

struction. 5, Spray Valves. 6,
Fuel Pumps; Governors; Fuel
Systems. 7, Valve Gears; Start-
ing and Reversing Systems. §8,
Lubricating and Circulating
Water Systems. 9, Indicator
Cards and Engine Testing. 10,
Operation of Diesel Engines.
11, Representative Types of
Engines. 12, A 1,000 Horse
Power Submarine Diesel En-
gine. 18, Diesel-Electric Drive
for Ships. 14, Properties of
Lubricating and Fuel Oils. 15,
Marine Rules for Vessels Pro-
pelled by Diesel-Oil Engines.
16, Two Hundred Diesel Engine
Pointers. 17, Diesel Engines
for Railroad Service. The
Author has gathered within the
covers of this book a great deal
of information that should
prove of value to all those in-
terested in this subject. The
chapters on Marine Diesel Elec-
tric Drive and on Diesel Hlec-
tric Locomotives are of especial
interest at this time.

Economics of Highway En-
gineering by ULt.-Col. H. T.
Tudsbery, M.C., R.E. (T.), 48
pages, 9 in. x 5% in., cloth.
$2.00. ‘ 3

Arranged under the following
headings. Introduction: Traffic:
Track: Vehicles: Fundamental —
Principles: and Index.

F. H. S.—It is not a difficult
operation to make a bellows and
blow torch suitable for brazing
or silver soldering. In Thatch-
er’s little book on Simple Solder-
ing is a chapter that fully de-.
scribes the construction of such
a. piece of apparatus. |

When writing for information
please enclose stamped and ad-
dressed envelope for reply. ~

a, ee eee eee ae

THE MODELMAKER 117

A 4” SCALE MODEL LOCOMOTIVE

By PAUL REITHMAIER
‘ Member of the Chicago Society of Model Engineers

I have just about completed this model, and a short description
of it might be of interest to the locomotive man. The engine is
of the 2—8—2, or Mikado type and is a free lance design. The
reason, I built a freight engine, will explain itself this way. I have
built several Passenger Engines, but on account of limited space for
track I could never develop the full speed of those engines, so I
built this engine with small wheels to get a better run on my
short length of track. I also reduced the revolutions by increased
piston travel, that means using a long stroke and a small cylinder
bore. I am a firm believer in a long piston stroke, as.a model
locomotive always has a tendency to run too fast. The long
stroke gives a quick get away and greater starting power for the
engine.

Now to come to the construction of the engine. No drawings

Were made, with the exception of a diagram for the Valve Gear.
I am one of those fellows who have the gift to design things and
get them to right proportions while they are being made. I am
a mechanic by trade and have made the steam locomotive a life
study, beginning in my early boyhood.
_ The Driving wheel pattern was taken in hand first, and con-
sists of a center, drilled and filed out, of a 3%” brass plate; the rim
was made from an old locomotive brass wheel and is shrunk and
soldered on. The trailing wheel is also a brass pattern. The
front wheels are Basset-Lowke castings.

The cylinder pattern, including the steam chest, is made inter-
changeable, so it could be used for either piston or slide valve.
_ These are all the patterns required. The rest of the parts
such as smoke stack, driving journals, etc., were made out of
drawn brass stock.

- The main frames are made from two pieces 5/16” by 2” cold
drawn steel. This job requires quite a bit of drilling, sawing and
filing. Great care has been taken to get the pedestals nice and
Square, and correctly centered.

§ After mounting the driving wheels, it was found they were
centered so good that it was possible to interchange the front
and rear axle coupling rods without any difficulty.

118 THE MODELMAKER

The front Truck is of the radial type with swing link centering
devise. The trailing Truck is also a radial type, and has a wedge
shaped centering devise. Both trucks are sprung with spiral
springs.

The main drivers have regular leaf springs and are equalized.
Nearly all the weight of the engine is on the drivers and there
is just sufficient weight on the front and rear truck to keep them
on the track.

The cylinders are cast in gun-metal and are without the saddle,
common to American practice. The reason for that is to keep
down the condensing of the steam. They are also for the same
reason made as light and as thin as possible.

The pistons are made in two parts held together with the
piston rod and a lock nut on the end. A piston ring 3/16” wide
provides for steam tightness. For an experiment I provided this
engine with slide valves. On other engines I have used piston
valves made of nickel working in brass liners and have had very
good results with them. The valve travel is %” in full gear and
will cut off on %” stroke. A relief valve and displacement lubri-
cator are arranged for each cylinder.

The Walschaert valve gear is very simple in construction, and
resembles very much the Maffei type engines of the Bavariam
railroads. The links work only on one pin of 44,” diam. and turn
in an extra long bearing. Reversing is operated from a quadrant
lever in the cab, which has three notches for each direction of
run, and one center position. The engine works very good linked
up to the last notch,

Aba ERO 6 © ye hae Pace ae Spe

The Boiler

The boiler barrel, including the smoke box is made from copper
tubing 22%4” long by 5%” outside diam. and 4%” wall. The outer
fire box is a 3/32” thick sheet bent around the barrel, and fastened
to it with a double row of rivets. Throat back and smoke box
plate are also flanged out of 3/32” copper sheet, but are only single
riveted. The rivets used are 5/32” diam. and 7/16” spaced apart.
The flue and back plate of the inner fire box are 14%” thick. The
crown and sides form a single sheet 3/32” thick. The crown sheet
is well supported and anchored. The four sides are braced with
4,” diam. stays of copper, 14%” apart. Nine 5%” and five 34” flues’
of 17” in length are screwed in one end and expanded in the other
end. Two 5/16” brass stays connect the fire box back and smoke
box plate together. A steam pipe in center, which contains the

THE MODELMAKER 119

throttle valve rod serves also as a stay. The same pipe has a short
connection to the dome, and extends into the smoke box, where
the throttle valve is screwed on. The throttle valve itself is on
the order of an engine slide valve, with omission of the exhaust
and one inlet port.

All joints are soft soldered with exception of the inner fire box,
which is silver soldered.

A superheater has not been made yet, but the five larger flues
will provide for one. The boiler is lagged with Russian sheet iron,
and is bolted onto a built-up cylinder saddle in front and rests.
in back on a vertical sheet, which allows a little radial movement.

The grate is of the round bar type, but will be replaced by a
shaking grate. The ashpan has two pockets between the frames
and two are built around the truck wheels one on each side.

Fittings of the boiler are two safety valves of 4” capacity,
water gauge, steam gauge, blower valve and a steam valve for the
injector. The injector is built to the description of (L. B. S. C.)
in a column of “Live Steam” in the Model Engineer, and sure
‘works good. The whistle is mounted on top of the boiler, to get
as short a steam connection as possible. There are two check
valves.

A powerful hand pump is mounted in the tender. The fire
door is of the butterfly type, and will be arranged later to work
automatically. ;

The Tender

The tender truck frames are of the diamond type, built up of
cold drawn steel and have cast bronze axle boxes. Spiral springs
are provided. The under frame is made of 3” by 34” cold drawn
steel and has two bumpers to bear against the engine, which gives
a stiff and still flexible coupling to the engine. The tank is of
galvanized iron sheet, correctly riveted and soldered.

The engine is equipped with pilot, bell and electric head light.
I am still experimenting with a small Turbo generator about 1”
diam. which will be sufficient to light two 1% volt lamps. A sand
dome will be placed between smoke stack and steam dome, and
‘another dome behind the safety valve.

The engine was run several times, but no actual test has been
made yet. As designed I expected to get 25 lbs. draw-bar pull, but
: on a temporary test, she pushed the scale to 30 lbs. The steam
“pressure used was 100 lbs.

THE MODELMAKER

120

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THE MODELMAKER 121

Fuel used was soft coal, but trouble was experienced with plug- !

_ ged flues, so I changed to hard coal with very good results.
Of course my tracks are not very good and only about 100 feet
- in length, which is hardly sufficient to get up speed.
Brakes are badly needed and it will be my next job to equip
_ the engine and tender, with steam brakes.

Principal Dimensions

Length of engine and tender

rare terse Wuvke sushtsnat 5334 Inches
Length of engine only...... aE a, na ae 3234 *
Pee MMO UOINULO I acs g's occ who ein Waveho le'e oieses 2034 iF
Height of engine to top of smoke stack...... 11% 4
See a RN ae Mare gc Be oS nvidin sea S978 wislece ai Stee
Weight of engine only in working order...... 112 lbs.
eee MT SV OLB is woe hos on wide wc Sioa esa 94..°%
We ret AON. LTUCK 06 eso. xh ate ies oes ee 8 Se 344%
pret ee OAL TEUCHK Sos ie. Cs sche a biel oe can TQ a
PE DMS SS 8 gh gs RRS ee Gb 414 inches
Pee ATONE WHEGIS 2 eS siete eee olen» Bee, VO a,
Perel ROR WNCOIS oie AY siise sishe s achcs'srs oce es 234 ,
Pee AVINGO | ADASO. 2 2 hito er ee cle as ca oes 26% of
vee Ie TI BUTIACE . 055 cee oe ee whe eh ak 481.8 sq. in
5 eM lk dey ai. oe kh S lnltn B0 Sar cnete

Stroke

———~—

Tender, tank capacity

ag ag Oe,

Mr. William Owsley, 1301
Chickasha Avenue, Chickasha,
Okla., writes us that he is just
completing a Model 24 racing
yacht designed by Mr. A. R.
Ferris, which was described in
February 1926 issue of the
~Modelmaker. He says it makes
up into a wonderful little model.
We shall be glad to hear from

DFP ne ae
ee as ee ‘

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made Models themselves from
designs given in the Model-
_maker.

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Tender, wheels diam. .......
Tender, weight empty .......

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DE ib pink pera Pepe 23/16 inches
te aero ean Aa a 201% Ibs.

any of our readers who have

24% gallons

We have just received a letter
from another of our readers giv-
ing us the following addresses
where models of old-time ships
may be seen: Max Williams
Antique Shop, 583 Madison Ave-
nue, New York; India House,
Hanover Square and _ Pearl
Street, New York, and the Mu-.
seum of the City of New York
in the old Gracie Mansion at the
foot of 88th Street, opposite
Welfare Island, East River, New
York.

THE MODELMAKER

eas
bo
bo

A MODEL ELECTRIC LOCOMOTIVE
CRANE

By C. HARRY SQUIER

The truck on which the crane is mounted is of a size 5” x12”
built of 144” brass plate for the top and sides and 4” plate for the
ends. The wheels are of brass, 314” in dia. with a %” tread,
forced on 14” diameter shaft axles made of drill rod steel. Solid
brass bearing blocks are set in the side plates, and the whole
construction is extremely heavy, and the truck able to carry a
one hundred pound load without trouble.

The truck motor is 6-volt, Series wound Knapp type supported
between the two axles, and driving them through 48 pitch spur
gearing at a ratio of 96 to one. Geared thus, the motor can move
the truck at slow speed with any load the crane can handle. This
motor is controlled by a separate switch in the base of the cab.

The wheels of the truck were originally flanged for track oper-
ation, but due to the crane being used so much off the rails, the
flanges were removed to prevent cutting the floors, and to give
it a wider range of action.

The foundation plate of the crane is a circular brass casting
5” in diameter by 5/16” thick, bored out to give a bearing surface
36” wide at the outer rim. A %” King bolt in the center, with
spring collar and lock-nut, anchors it securely to the truck and
permits free rotation.

The main frame is a brass casting. Accurately machined all
over and screwed by screws to the foundation plate. A boss
being cast integral with the frame for the boom to receive a good
anchorage. The bearings for the cable drum, and intermediate
gears are all carried on this frame and are adjustable for wear.
All gears are of brass 32 pitch of involute form, the ratio from
motor shaft to cable drum being 132 to one, thereby multiplying
the power enormously and providing ample power at the hook.

The boom. is of 1/16” sheet brass, 20” long, built up similar to
a bridge truss, and is of great strength, showing no signs of
bending when 40 lbs. is swinging from the hook. Two sheaves
1” in diameter are used at the boom head, and two at the hook,
making the total lifting ratio to motor shaft over one thousand
to one. This ratio gives a lifting speed of about 5 feet per minute ©
with the controller at full speed. The heaviest load is under per-
fect control at all positions and can raise, or lower, a distance of
1/64”, or less, without effort. The writer does not know the ulti-

THE MODELMAKER 123

mate lifting capacity of this model but the linen cable is the
weakest link, and in case of an accident where the hook starts to
pick up the bench instead of the load, it readily snaps before
stalling the motor.

The original motor was operated with alternating current at
100 volts and reversing switch but due to insulation troubles this
was removed, and a small separately excited 6 volt D. C. motor
was substituted, enabling the truck and crane motors to both
draw current from the same bus bars using a push button con-
troller, the lower voltage avoids all arcing troubles, and also
prevents the operator getting shocks through his fingers within
the narrow confines of the cab.

The cab is built up of 4%” plate aluminum with brass gussets,
of a size 10” long by 6” high. A solid cast iron roof faced with
aluminium, acts as a counterweight for the boom load. To further
increase its stability, massive blocks of steel are secured to, and
made part of the cab floor, the whole machine weighing in the
neighborhood of forty pounds. The cab is illuminated by a small
six-volt lamp fastened to the roof.

The boom has a movement of 360 degrees and is raised, or
lowered,. by a small winch within the cab operating through 4
sheave pulley blocks. A load can be placed in au exact spot
anywhere within range of the boom, and can be handled as deli-
cately and with an ease to compare very favorably with the most
modern type of locomotive crane. All power is furnished by a
standard 6-volt accumulator, the maximum current required being
about 8 amperes.

Mr. A. A. Singer informs us Model Railway News, contents
that owing to the difficulty of for August. An “O” Gauge Out-
getting small hex nuts and bolts door System. A New Zealand

he has made up quite an assort- Rig te ;
ment of small sizes to standard Exhibition Model Railway. Run-

- American gauge. These little ning “O” Gauge Clockwork
items are very essential and add Tyains. A Simple Culvert
considerably to the finish of a Bridge. Construction of an “O”

peupcael Gauge Model Railway. A “Keen-

Mr. Reggie Pink, 2831 Middle- Farrow” Type Water Tank.
town Road, Bronx, New York, is Automatic Model Signalling. “O”
considering the construction of Gauge Garden Railway Tips.
a 74%" Gauge Locomotive and Model “O” Gauge 4_§—4 Type
Track with cars. He would’ Electric Locomotive. Small Rail-
very much like to hear from any ways as Prototypes. Gauge ‘“O”
of our readers who have done ‘Track Layout. Mr. G. P. Arthur’s
work along this line as sugges- American Type Model Railway.
_ tions for type of locomotive. Our Mailbag. Club Notes ete.

124

The Modelmaker.
Dear Sirs:

In reply to your question about
silver soldering. I bought a book
describing the methods used,
but could not make headway
owing to having only a one-pint
blow torch as source of heat,
and of course this would not
even start to heat a _ boiler
twelve inches long to the red
heat necessary to fuse the sil-
ver. Finally I fixed the boiler
up on the household gas stove
directly over the largest bur-
ner, then arranged tin baffles
over the boiler to direct the
gas flames on to it. I then lit
the jet and in fifteen minutes
the boiler was at a dull red heat,
and after applying borax and
silver in the usual way turned
the blow torch on the particu-
lar part I wished to solder and
this provided the necessary
extra heat to fuse the silver.

Of course it is necessary to
rearrange the boiler and baffles
for each seam. The thin flues
were protected from burning
by slipping iron rods into them,
leaving half an inch or so pro-
jecting. The first boiler I made
was ruined by these rods stick-
ing in the flues, and in attempt-
ing to get them out, buckling
the flues. I imagine it was ex-
cess borax which caused them
to stick. However, in later at-
tempts I selected rods at least
1/16” less in dia. than the bore
of the flues and had another rod
to hand so that the instant the
brazing was completed I pushed
the rods out of the fiues, before
the borax had time to set.

In silver soldering two parts,
one of which is much larger
than the other, it is necessary
to direct all the heat on the
large part to get it to the fusing
point of silver, before playing
the flame on the actual joint,

THE MODELMAKER

otherwise, if the flame is first -
played on the joint, the small
part will just melt before the
large one gets nearly hot
enough. é

It is not possible to silver
solder some grades of phosphor
bronze as this alloy generally
melts, or rather crumbles up,
before the silver melts. In a
case where the worker has de-
cided to silver solder bronze
and take a chance, I suggest
taking a scrap piece of the
bronze and a piece of silver
and heat the two of them to-
gether to discover which melts
first. If the silver melts first
one may reasonably take a
chance, but watch the job very
closely and the instant the
silver melts turn the flame
away.

I ‘hope these notes will prove
to be some. assistance to
readers. I am not an expert,
by any means, but the little I
do know has been learned in
the expensive school of personal
experience.

Yours truly,
F. G. Carter.
224 S. Seventh St., Olean, N. Y.

The Editor
The Modelmaker.

Dear Sir:—

Will you kindly furnish the
following information?

1. The fastest recorded speed
of a 1-metre displacement boat
either steam or gasoline driven
in the U. S. A.

2. Are particulars of hull, pro-
peller diam. and pitch, engine

r.p.m., ete, available? And if
so where?
B. Read, Jr.,

3230 Euclid Heights Blvd. —
Cleveland Heights, Ohio.

Please do not forget to men-
tion The Modelmaker when
writing to our advertisers.

_ Write for particulars.

THE MODELMAKER

125

WHAT'S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
_ WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or ~

figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

One-Half-Inch Scale Pacific
Castings and full size drawings
$30.00 complete. 1” x1” Vertical
or Horizontal Stationary Engine
Castings. Locomotive drive

wheels from O Gauge to 1” scale —

prices quoted. Order direct from
the designer and manufacturer,
all goods advertised are carried
in stock, immediate delivery,
not weeks of delay. American
design and made in the U. S. A.
Price list 5 cents. Frank Birch,
General Delivery, Highland
Park, Michigan.

Practically New Bench Lathe
with counter shaft, centers, etc.
Roy Rob-

- bins, Hamden, Ohio.

Prototype Drawings of Amer-
ican Locomotives and tenders:

Front and side elevations with
correct dimensions $1.00 each.
George D. Arthur, Glenbrook,
- Conn.

‘Learn To Be An Aijr Pilot,

make your own glider, Icken,

903 Ray
N. J.

Avenue, Ridgewood,

Blue Prints of Ships for
~Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,

Upper Montclair, N. J.

FOR SALE

Locomotive Blue Prints—“O”
gauge Pacific. 3 sheets, steam,

full details, $2.00. 1 sheet,

steam-electric, 75 cents. Singer,

15 Moore St., New York.
Designing — Working draw-

ings prepared; calculation of
strength of materials; for your
models or actual size; inven-

tor’s ideas developed. E. H.
Grafton, P. O. Box 75, North End
Station, Detroit, Mich.

Rough Sketching; The Han-
dy Sketching Book, consisting
of sectional ruled paper, plain
eight squares to the inch, with
some useful tables, size 5 x 8,

bound in limp card to fit the

pocket, price $.35, Spon, 120
Liberty Street, New York.
Railway Centenary — 1825-

1925, being an exceedingly in-
teresting historical account of
the British Locomotive, cars
and signalling apparatus during
a hundred years of develop-

ment, with many illustrations
and some larger colored plates,
124 pages, 11 x 8%” paper bind-
ing, $1.60 postpaid. Spon, 120
Liberty Street, New York.

126 THE MODELMAKER

Price, 35c. Each.

SMALL ELECTRICAL MEASURING INSTRUMENTS. How to
Make and Use Them. By Percivat MarsHALi. Contents of
Chapters:—1. Instruments for testing the presecne of an electric
current, detectors, galvanometers. 2. Instruments for measuring
the pressure or quantity of an electric current, amperemeters;
voltmeters. 3. Instruments for measuring electrical resistance,
wheatstone bridge. 4. Instruments for measuring static elec-
tricity. 5. Practical details for construction. 6. The principles
upon which electrical measuring instruments work. 7. How to use
electrical measuring instruments. 8. How to choose electrical
measuring instruments. 90 pages, 59 illustrations.

PRACTICAL ELECTRICS. A universal handy book on everyday
electrical matters, including connections, alarms, batteries, bells,
carbons, induction and resistance coils, dynamos, measuring, micro-
phones, motors, telephones, phonographs, photophones, etc. 135
pages, 126 illustrations.

INVENTIONS. How to Protect, Sell and Buy Them. By
Freperic B. Wricut. Counsellor in Patent Causes. This book
is especially written for the use of Inventors, instructing them how
to place their inventions before an Attorney clearly; the rights given
them under the Law, Patent specifications, Legal forms, and the
many points necessary for an Inventor to know to protect himself
under the American Laws. The most practical and clearly written
American book on this subject, especially intended for the un-
initiated. 114 pages, and 1 sample pattern drawing.

WOODWORK JOINTS. How to make and where to use them.
A new revised and enlarged edition. Contents of Chapters: 1.
Mortise and tenon joints. 2. Lap joints. 3. Dove-tail joints. 4.
“Glue”? joints. 5. Scarfing joints and joints for lengthening
timbers. 6. Circular work, showing how to make joined woodwork
frames in the form of ovals and circles. The work describes clearly
the construction of the principle joints used in carpentry and
joinery, and shows not only how to set them out, but indicates for
what purpose they are best suited. 101 pages, 178 illustrations.

UNIVERSAL TIME CARD MODEL. By setting to the desired
hour at any one place the movable model will show at a glance the
actual time of all the other places in the world. Printed on stiff
card in two colors, size 7 in. by 9 in.

MODEL STEAM ENGINE DESIGN. A handbook for the De-
signer of small Model Steam Engines, including original tables and
calculations for speed, power, proportions of pumps, compound
engines, and valve diagrams. By RosBrert M. DE ViGNIER. Con- |
tents of Chapters: 1. Various Types. Speed of Model Engines.
2. Power Calculations. Materials. 3. Feed Pumps. 4. Com-
pound Engines. 5. The Valve Diagram. 6. Engine Layout. Pat-
terns, 102 pages, 34 illustrations,

Spon & Chamberlain, 120 Liberty St., New York.

_THE MODELMAKER- 127

WANTED
Model Power Boats by Hobbs
in good condition, Spon, 120
Liberty Street, New York.

Small Bench Lathe, perfect
condition, will consider Wade
No. 1, Wm. Steffens, 210 Valen-
tine St., Ridgwood Station,
Brooklyn, N. Y.

WORK WANTED
Model Machine Work. Small
Patterns and Castings. Model
Steam and gas engines built
from your drawings or from
ours. Estimates cheerfully
given. John N. Fenner, 64

Broad St., Clifton, N. J.

THE DOMINION TOOLS
& CASTINGS CO.

433 Homer St., Vancouver, B. C.
Western readers will find at the
above address goods from the fol-
lowing firms:
Stuart Turner, Ltd.
Mills Bros., of Sheffield
Exe Eng’g Co., Ltd. (Exe lathes)
Liverpool Castings & Tool Supply, Ltd.
Leeds Model Co., Ltd.
Tom Senior (Arth. Firth Castings)
“Britannia’’ Lathes (Colchester)
We will be delighted to meet any
Model Engineers who call upon us
during their stay in Vancouver.

WANTED

Modelmaker, Volume i, Num-
ber 6, November, 1924. Model-
maker Volume 2, Number 5,
May, 1925. Will send a copy of
Mechanical Age in exchange,
Spon, 120 Liberty Street, New
York.

American Institute of Elec.
Engrs. Volumes 1 to 8. Box 4,
Modelmaker.

Everyday Mechanics, Nos. 1 2
and 6 of Vol. 1, Nos. 1 2 and 3
of Vol. 2. Box 2, Modelmaker.

WORK WANTED
I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.

MODEL MAKERS
HAVE YOU A LATHE?

If not, let us figure on your work.
Accuracy Guaranteed
to within 1/1000th of an inch, and all

work done by an experienced
machinist.

Estimates cheerfully given.
Prices moderate.

Motor Generator Service
P.-O..Box224
DOVER, NEW JERSEY

'EGOLF SCALE MODELS

Complete, with tender,

ay 120 99

Reading Rwy. Pacifics crass

ELECTRIC

0-GAUGE 6-8 VOLTS
Take 3-foot radius curves.
$50 POSTPAID.

A special device on these models emits

smoke while running.

Reverse switch and full valve gear.

MADE FROM THE RAILWAY’S OWN
PLANS ON A
GIVING MAXIMUM POWER.

PATENTED SYSTEM

100 WOODSIDE AVE,
NARBERTH, PA.

128 THE MODELMAKER

NaS

SS ale a S22 —
SSS

2 MES A SSS eg ee —
SS —

Model Makers

Get this Flexible and Portable
Shaft Outfit of a Thousand Uses

This Flexible Shaft Outfit, a precision instrwment, primarily designed |
for hard service, is indispensable for model makers, mechanics and for
machine shop use. There’s lots of pep behind it; it’s portable. ;

Consists of a ball-bearing coupling to connect to any motor or re-
volving spindle, 3 feet of flexible shafting, and a ball-bearing chuck.
Operates emery and buffing wheels, reamers, metal drills, files, burrs,
and many other appliances. Simply place the tool in the chuck and
the outfit is put to work. Runs as smoothly as a highly jeweled

watch. /
P)

Drilling and reaming holes in metal, wood or composiay
A Few Uses tion, die-cutting, mold making, engraving; buffing and
polishing, rectifying dies and punches, cleaning solder joints, etc. A % horse-
power motor for operating is easily obtainable at small cost. In ordering, state

size of motor shaft. a
SPECIAL OFFER —SEND ONLY $5.00 q

This Flexihle Shaft Outfit regularly sells for $45. As a _ special intro-
ductory offer from our factory to you, send $5° with order and naa
postman $20, plus postage, on arrival. Satisfac- 4
tion guaranteed or money back. Order direct from eT
this advertisement. a

The S. S. White Dental Mfg. Co.

(Industrial Division) .

152 WEST 42nd ST. NEW YORK, N. Y-:

SSS ee

Pe THE

MODELMAKER

FOR THOSE " 'ReRy op
INTERESTED IN MAKING

WORKING MOOEE%

Vol. Ill, No. 9 SEPTEMBER, 1926 10 Cents

~N OLD-TIME ELECTRIC LOCOMOTIVE

MADE BY MR. J. W. NEPTUNE

ee 4)
} “3 Lathes
Capacity: 4” dia. x 18” length.
Turning, Facing, Boring, Drilling,
Winding, Thread Cutting
No, 1 Plain Machine as above.......... $28
No. 2 Back-Geared, Screw Cutting $58
SEND FOR FREE 16-PAGE
CATALOG

Shows full details and accessories
THE GEROLD CO. (Dept. M18)
120 Liberty St., N. Y.

THE DOMINION TOOLS
& CASTINGS CO.

433 Homer St., Vancouver, B. C.
Western readers will find at the
above address goods from the fol-
lowing firms:
Stuart Turner, Ltd.
Mills Bros., of Sheffield
Exe Eng’g Co., Ltd. (Exe lathes)
Liverpool Castings & Tool Supply, Ltd.
Leeds Model Co., Ltd.
Tom Senior (Arth. Firth Castings)
“Britannia” Lathes (Colchester)
We will be delighted to meet any
Model Engineers who call upon us
during their stay in Vancouver.

MODEL MAKERS

HAVE YOU A LATHE?

If not, let us figure on your work.
Accuracy Guaranteed

to within 1/1000th of an inch, and all
work done by an experienced
machinist.

Estimates cheerfully given.
Prices moderate.

Motor Generator Service
P. O. Box 224
DOVER, NEW. JERSEY

THE MODELMAKER

MODEL MACHINERY

Sole U. S. Agent for the noted Eng-
lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasuline,
Gas Engines, Boilers, Fittings and
Trimmings; Electrical Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “CABLE SERVICBE.”

Alfred Paul & Son, Engineers

3 Ashland Street
Melrose Highlands, Mass., U. S. A.

Catalogue 25c, Coin or Post Office Order
1926 Catalogue Just Issued

THE BATHE MFG. CO.

Model Engines,
Boilers, Boiler Fittings, Books,

Model Makers’ Supplies

Large Illustrated Catalogue 20c.
(refunded on first order)

Dept. S.— 5214 Woodland Ave.,
PHILADELPHEAS PA.

A REAL MODEL OF A
REAL LOCOMOTIVE

-4-inch Scale
Pacific K4 Pennsylvania R. R.

Get ready now to build this fine model.
Complete set rough castings only with
fully detailed prints, $40 F.O.B.
Complete sets only supplied.
Terms if Desired
See Model Maker, Feb. to May 1925
for description.

H. J. COVENTRY, M.E.

4003 CARLISLE AVE.,
BALTIMORE, MD.

THE MODELMAKER_
BOUND VOL. I. 1924. $1.60

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. II. 1925. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy.
We still have a few copies of Nos. 1, 2, 8, 4, 5 of Vol. I. Price 10c each.
We still have a few copies of Nos. 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. 2.
Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

—
Ms

THE MODELMAKER
Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month

Annual Subscription, $1.00

Vol.

Ill, No. 9

“Entered as second-class matter Mar. 27, 1925, at the Post Office at
New York, N. Y., under the Act of March 3, 1879.”

OUR FOREWORD

Last year a very interesting
book was published in England
showing the development of the
Steam Rail Locomotive during

the past hundred years. From
the crude products of Stevenson
and Watt to the powerful pas-
senger and freight locomotives
of the present day.

About 20 years ago some de-

signers and builders of locomo-
tives turned their attention to a
new type, the Gasoline-Electric
Rail Car, which included the mo-

tive power, passenger and bag-
gage compartments complete in
one unit. A number of these
rail cars have been built and
have proved quite successful
and economical on lines where
traffic was light.

| In 1909 a more important ad-
vance was made in — Russia,
where a complete design was
worked out for a Diesel-Electric
Locomotive, but the actual loco-
motive was not built.

In 19138 one of this type of lo-
comotive was built in Sweden

and proved quite a_ success.

Since that time Diesel-electric

locomotives have been built in

Russia, Sweden, Hungary, Ger-

ee France, England and the
Ss.

In the past ten years much
experimental and development
work has been undertaken and
today this type, or types, be-

cause there are many different
designs, have been: brought to
the point where they are con-
sidered a commercial success.

Locomotive builders have rea-
lized that in spite of the enor-
mous increase in size, weight,
boiler capacity, heating surface
valve mechanism, and hauling
power of the modern steam loco-
motive, they have not been able
to increase its speed to any ap-
preciable extent. When it is re-
called that the Flying Dutchman
of 50 years ago was able to
maintain speeds of 60 miles an
hour hauling a fair sized string
of passenger cars.

This question naturally comes
to these men, “Has the recipro-
cating steam locomotive reach-
ed its maximum speed?”

Much has. been accomplished
in the development of the elec-
tric locomotive as a prime mov-
er and higher speeds have been
attained, but the investment for
the initial equipment of the pow-
er plants, installation of the
third rail, or overhead feeder
and upkeep make the cost al-
most prohibtive for long hauls.

In thickly populated districts,
where traffic is heavy and al-
most continuous, the earnings
are great enough to warrant the
initial cost of installation and
upkeep. But for long hours
where passenger and freight

132

trains are comparatively few, it
is doubtful if the change from
the steam locomotive to electric
would be a profitable specula
tion.

There are three elements
which must also be considered,
Storms, floods and deep snow,
which may cause great damage
to installation and partial, or
complete, stoppage of service
for hours, or even days.

There is a great field for the
Diesel-Electric Locomotive. The
initial cost for the Diesel-electric
power unit would be about the
same when quantity production
has been obtained, as for a mod-
ern high power steam locomo-
tive, but its advocates claim a
higher efficiency and less cost
for fuel, and that when the run
is finished and power shut down
no fuel is consumed, until it is
again in operation and storms,
floods or snow would have no
more effect upon its operation
than they would have upon the

A suggestion has been made
in the New York Herald Tribune
that the Park Board give per-
mission for the old reservoir in
Central Park to be used by
model boat builders to race and
test out their boats, as the pres-
ent small boat pond in the Park
is quite inadequate for this pur-
pose. This would make an ideal
model boat lake provided the
authorities filled it in up to
about 3 ft. of its high water

mark. To use it as it is would
be very dangerous owing to the
depth of the water. To drain it
down to a depth of 3 ft. would
make it useless for a sailing
lake, as it would then be a lake
'in a deep hollow. The require-

of eee

THE MODELMAKER

steam locomotive. In fact both
of these latter types of prime
movers would be able to oper-
ate where electric locomotive
would be at a standstill.

There is a very interesting il-
lustrated article on Diesel-Elec-
tric Locomotive in the August,
1926 number of Railway and
Locomotive Engineering which
we recommend our readers who
are interested in the construc-
tion of model locomotives to
read.

If any of you are contemplat-
ing the construction of a loco-

motive niodel why not build one:

of the Diesel-Electric Type?

'The writer believes that in a
few years we Shall see the Die-
sel-Electric prime mover replac-
ing the ponderous. steam loco-

nt, hia ons ee Seas,

motive on many of our fast pas- —

senger long distance runs.

We shall be glad to hear from
any of our readers on this
subject.

ments of an ideal sailing lake is
comparatively
with the surface of the water as
near the level of the surround-
ing ground as possible, and free
from obstructions like buildings
or heavy trees, which prevent a
good steady breeze necessary
for a successful regatta. Per-

haps some of our influential En-
gineer friends interested in the.

development of this delightful
pastime will work out some plan
to lay before our City govern-
ment.
and hope something can be done
to make this useless body of
water of some value to our com-
munity.

When writing for information
please enclose stamped and ad-.

dressed envelope for reply.

shallow water, —

We wish them good luck ~

a. ST a

DP SSOP ET Ae ee ay weet

THE MODELMAKER 133

ELECTRIC LOCOMOTIVE

By MR. J. W. NEPTUNE

Member of The Akron Society of Model Engineers
I made this Model about 14 years ago when the Electric Loco-
motive was in its infancy. I realize it must look like an old timer
when compared with the electric locomotive of today, but I con-
sidered it a fine Model when it was finished. It worked very well

indeed considering the fact that it only had one small motor and

little power. My model was designed from the 0—4—4—0 Electric
Locomotive built by the Baldwin and Westinghouse Companies for

the B. & O. and N. Y. CG. R. R. The weight of these locomotives

was about 160,000 lbs. They were used in the N. Y. C. R. R. yards

at New York. The original data I worked from has been destroyed,

but I give the following particulars from memory.
Gauge, 2 inches.
Scale, 7/16” excepting the head lights and whistle.
Motor, 6-8 Volts, 0-34 amps.
Wheels, 1%”, size over flange 15%”.
Journals have spiral springs.
Motor was geared to both sets of wheels.
Source of power, storage batteries.
Body of locomoive, built of wood and covered with sheet tin.

-. Length over bumpers, 12”.

Width, 3%”.

Height to top of cab, 6 11/16”.

Weight about 7 lbs.
' The locomotive was weighted down with strips of lead.
- Trucks, motor and pilot were made by the Voltamp Electric Co.
_ Brass Brads were used for rivets.

Mica was used for the windows in the cab. The roof of the cab
Was moveable to enable me to work the starting and reversing lever.
- Bach head light was fitted with an electric light bulb also one

electric light bulb in the cab working off a selecting switch.

Jy had about 100 feet of tin plate track with the third rail fixed

to the ends of the ties outside of the running rails. This track
was fastened to a shelf attached to the wall around the basement

of my house.

’ Besides the locomotive I had two flat cars and a Caboose.

134

THE MODELMAKER

The Locomotive with the two flat cars, weighted with about 10
lbs. of iron and the Caboose developed a speed of about 160 feet

per minute.

I am now working upon a modern type of electric locomotive,
one pair of trucks are shown in the illustration attached to the

rear of the flat car.

THE SANTA MARIA

One of the foreign exhibits at
the Sesqui-Centennial Exposi-
tion that has attracted consid-
erable attention is a very fine
model of The Santa Maria made
by Models & Mascots Syndicate.

The Model is built to a scale
of 7/32”.

Length, 1’ 93%” O. A.

Length between perpendicu-
lars 1 4-45,¢5

Hull is of satin walnut planks,
1/32” thick.

Wales are rivetted on verti-
cally to the timbers.

Masts, fore, main, and mizzen,
the main mast is bound with
rope to strengthen it.

Sails, foresail, mainsail, main-
topsail, mizzen, lanteen and
spritsail.

The Papal Cross is on main-
sail, the Maltese Cross on fore-
sail.

About 5,800 brass rivets, size
15/1000, length varies %” to 1%4”
were used in its construction,
the rivets were staggered to
make them hold more securely.

Deck planks are rivetted.

About 150 blocks and dead-
eyes made of ebonite were used.

Rigging is of fine copper wire,
nearly 1 mile of this wire was
used for this work.

Sails are of sterling silver
beaten to shape.

One small boat in waste.

Windlass, bars on
drums.

outer

Anchors of solid copper, in
two pieces, bound and rivetted
with copper.

The rudder is connected to a
tiller which is operated by a
whipshaft.

Steering light, a basket shap-
ed lantern carried over stern
rail.

Painted scrolls and plaques
placed around both quarters for
decorative purposes.

The sea upon which the model
rests is cast silver and metal.

Mr. J. W. C. Corbusier, Hud-
son, Ohio has sent us three
photos of his latest work. A
fine model of Donald McKay’s
famous Clipper Ship “The Fly-
ing Cloud.” A ship that made
the fastest time from New York
to San Francisco during the
great gold fever in California.
This is more than a model, it is
a miniature, because it is sea-
worthy and sails well in a fair
breeze. The hull is 2644” L.W.L.
and the rest in proportion ac-
cording to drawings. Mr. Cor-
busier’s next effort will be a
scale model of another of Don-
ald McKay’s famous ships “The
Great Republic,”
claimed to be the largest clipper
ship ever built. The Model will
be 42” L.W.L. This gentleman

also built a fine working model .

of the “S.S. Aquitania’’ which
was described in the Modelmak-
er for November, 1925.

which was |

+l a
Pere ¥ tS -6

THE MODELMAKER

A CHINESE JUNK
Model by G. B. Douglas
Last spring there arrived in
New York a Chinese junk that
had been built in Amoy and
‘reached New York via Vancou-
ver and the Panama Canal. As

this was the first junk that had
been here in about 60 years I
was much interested in visiting
her and noting the, to me,
strange ideas in use on the ves-
ee sel.

___I determined to add to my list
- the lines of a junk which I

135

found in a book that I had and
afterward built the model shown
in the cut from these lines.

The construction was so dif-
ferent and the ideas so peculiar
that I became much interested
in working out the drawing.

The original junk was 89 fe.
over all, 69 ft. on water line, 20
ft. 9 in. beam and 4 ft. draught.
At % in. scale this worked out
a model 22 in. over all.

The hull was made of a block
of white pine and dug out to %
in. thick for lightness. The deck

136

was fitted on and the long side
rail was made: of 4% in. white
holly and bent to shape and
fastened to the side of the rail.
The small perpendicular strips
on the rail and in the overhang-
ing sides at the stern were made
from matches glued in place.
The long strips were from strips
bought from a dealer in aero-
plane supplies. The sails are
of pongee silk and the battans
on them are of rattan.

Aft of the movable rudder
post the interior of the boat is

all open as there is an opening
in the stern through which the
rudder can be hoisted by a wind-
lass on deck when the boat goes
into shallow water. There is a
watertight thwart ship bulkhead
inside to prevent the water en-
tering the main hold of the boat.
The idea is that the weight of
the water slowly drains out
when running in a following sea
and prevents the vessel from
pitch-poling, or standing on her
bed. The rudder is large and
framed of planks between hori-
zontal bottons in which holes
are cut diamond shape to light-
en the rudder. The rudder is
large and these holes make it
easier

helm over.

In stepping the masts they put
in two perpendicular planks and
cut down the foot of the mast to
a wedge shape and put it down
between the planks. The heav-
ier the mast the tighter it jams
in between the planks. The
fore and main masts never go to
the bottom of the vessel and set
in mortised blocks as is common
practice elsewhere.

The mizzen or last mast is 2
feet off the centre line of the

for the helmsman, or.
more often a woman, to put the

THE MODELMAKER

boat and on the junk from Amoy
it was out on the starboard rail
so as to be out of the way of
the long tiller. The sails and
anchors are raised by wind-
lasses of logs with cross sticks
and are at the foot of the masts.

The anchor is made of a
heavy wood that sinks, has but
one fluke and the stock or cross-
bar is placed just above the
fluke.

The cooking is done in two
kettles over fires on iron or con-
crete plates on the after deck
and the overhanging box shop-

ped affairs are used for storage —

of kitchen supplies.

Every junk has an eye painted
on the bow for a Chinaman says,
“Boat have no eye, how can see

—no can see, how can go.” The —

flag at the formast on a bamboo
rod is red. At the main is a
wind gauge and at the mizzen
the new Chinese flag.

Some Chinese junks are fast
sailers, much faster than any
one would think to look at them.

The Amoy junk was sailing on ~

Long Island Sound doing 10
knots and standing up, as the
saying is “like a church.” A
yacht came along and was lying
down with her rail in the water
trying to keep up with her.

- Mr. Edgar L. Brown, care of
Schiffman Jewelry Co., Greens-
boro, N. C. has sent us a photo

of a fine Model Seagoing Tug-

boat the “Conestoga” built origi-
nally for the P. R. R. Co., but

sold by them to the government

during the war. The prototype
was fitted up for service and
armed with three guns. With a

crew of 380 men it left Mare —

Island Navy Yard for Honolulu,
but was lost with all hands.

When writing to advertisers —
please mention the Modelmaker, ~

cP eT ee eee ee ey, ee ee ee ene ee

.
\a
2

ae fe ee a pe 8

* ‘
ee ee a ee

PP, os Ss

THE MODELMAKER

PHOTOGRAPHING MODELS
By Wm. Chamberlain
The satisfaction of having

completed a Model, whether it

be of a Locomotive, a Motor-
boat, Yacht or Flying Machine,
brings much additional pleasure
to the maker when he shows it
to his friends, but friends are

sometimes far away to whom he

“model,

cannot show it. Then he will

turn to photography to help him.

In taking a photograph of a
whether in the work-
shop or out of doors. The lat-
ter is best because you have a

good light overhead, but do not
let the sun shine on the Model.
' It is necessary to have a good
_ background, or screen, prefer-

: stand.

ably of a light gray color. The
model being placed on a table
or bench and the camera on a
In taking the picture
carefully focus on the model al-
lowing a fair margin of space

é around the model and use a

‘
be
a

@ sure,
_ taken of moving objects.

small stop, giving a time expo-
Snapshots should only be
Take

- two or three views of the model,

and only the model,

do not let

any other object appear in the

_ picture.
a copy

Taper dine eae IRE a eRe

Finally be sure to send
to the Hditor of the
Modelmaker with a short de-
_ scription of its construction.

Mr. B. E. Sundberg, U. S.. Vet-
erans Hospital 51, Tucson, Ari-
_ zona, is planning the construc-
tion of a model sailing ship. He
would be glad to hear from any
of our readers who have built
model ships as to the best kind

- of wood to use and other ma-
terials
such a model.

required to _ construct

-U. §. Schooner-of-War

‘structed at

137

Mr. G. H. Stegmann is hard
at work on @a fine Model of the
“Gram-
pus,’. mounting 10 guns and
carrying a crew of about 60
men. This vessel was’ con-
the Washington
Navy Yard and launched about
1821. It was used as a gun boat
on the coast and in the West
Indies... She was lost with all
hands off Charleston in 1848. _
Mr. Stegmann’s model is to the
scale of 44 in. to 1 ft. We ex-
pect to be able to give a fuller
description of the construction
of this model in a future issue.

Mr. Elmer Wall recently paid
us a visit on his way back to
Chicago from his trip through
Canada and New York. He
showed us the completed model
of his single cylinder up-right
gasoline engine, 1% in. bore by
1% in. stroke. The cylinder,
frame and stand is one casting.
There is no crankshaft as the
piston rod is direct connected
to the large fly wheel. It ran
very smoothly and almost noise-
less. He is preparing sets of
castings and blue prints. This
would be an excellent Model
for a Manual Training Instructor
to get for his students to make
up as part of their class work.
It will develop about 1% H. P.

We regret to hear that Mr. J.
G. Bathe of Philadelphia, who

has been intimately connected
with Model Work for a number
of years, has been ordered by
his physician to take a trip to
Bermuda as he has developed
rather serious eye trouble. We
hope the rest and change of
scene will have the desired good
effect and that he will return
very much benefited by his trip.

138

Dr. A. V. Blom, of Berne,

Switzerland, claims he has per-.

fected a process for the manut-
facture of a special lead paint
that protects iron from rusting.
The lead is melted in an elec-

tric furnace, certain reducing
gasses and air are blown through
the molten metal, which forms a
scale or dross, a finely divided
lead in yellow lead oxide. This
is powdered and mixed with a
specially prepared Linseed oil.
Ironwork covered with this pre-
paration has been found to re-
sist the more severe tests, for
prolonged periods, without
showing any signs of oxidation.
This is a most valuable discov-
ery as the present practice of
protecting exposed ironwork by
the ordinary painting methods
is both tedious and costly. The
universal use of this new paint
should be the means of saving
millions of dollars annually as
the losses from oxidation is very
considerable.

Mr. Egolf has been designing
and building scale models for
a number of years. He has de-

veloped a special type of loco-
motive model which we believe
will interest many of our read-
ers. He would be glad to send
full particulars to anyone inter-
ested in this line of practical
working models.

Mr. Bohaboy of the Model Ma-
chine Shop has made a number
of experiments with various

forms of blow lamps for heating
Model Boilers and has developed
a model giving very excellent
results. He has made these
lamps in various sizes to fit the
requirements for different sized
boilers.

THE MODELMAKER

Model Railway News, contents
for September. List of Passen-
ger Carrying Miniature Railways —
in Great Britain. An “O” Gauge
Railway. Kent’s New Miniature
Railway. Improving the Breed
of “O” and “I” Model Railways.
An Automatic Electric Switch
for Model Goods Yards. Model
Railway Signalling. Design for

an Electric Current Collector.
Model Railway Locomotive Disk

Codes. Construction of an “O”
Gauge Mlodel Railway. “OO”
Gauge Rolling Stock. Color

Light Signals: Mr. W. E. Hitch-
cock’s Model “O” Gauge Tank
Locomotive 2—6—4 (Electrically
Driven). Mr. T. W. Marsden’s
“O” Gauge L.N.W.R. Guard’s
Van. Mr. N. H. Robert’s Gauge —
“O” South African Country Sta-—
tion. Our Mailbag. Club Notes.
Sale and Exchange, etc.

We. have been advised that
the management of one of our
Eastern Railroad Systems have ©

decided to organize their own
shop for the construction of
scale model locomotives of ac-
curate design and fine workman-
ship. This is another step to-
wards the development of Sci-
entific Modelmaking and a prac-
tical acknowledgment of the
value of fine models from an
educational standpoint.

All of our readers who are in--
terested in “OO” Gauge Model
Railways will be glad to hear —
the Mr. A. A. Singer and his co-
worker are making up some very —
good solid track in sections for
“OO” Gauge. The rails will be
rolled in solid metal and as near
to actual scale that it is possible
to make them.

7 ot oe

THE MODELMAKER

Mr. A. J. Fisher of Royal Oak,

- Mich., has a very well equipped

little shop where he makes-a

specialty of Ship Models. He
is making up a line of Model
Ship fittings. No doubt some
of our model yacht builders will
be glad to get in touch with him.

Mr. H. J. Coventry is making
a collection of photos of Model
Locomotives of American types.
He would be very pleased to
hear from any of our readers
who would care to send him
photos of the model locomotives
they have built.

Mr. Warren B. Crater writes
us he is working on a half inch

scale Model of the New Jersey
Central High Speed Pacific. This
Model will include the improved
Delta trailer as used on nearly
all modern power. He has made
the drawings himself and is now
busy on the patterns.

We frequently get complaints
from our subscribers that they
have not received all of the new
bers of the Modelmaker. Our
mailing list consists of metal
stencils printed through a ma-
chine and all the issue is mailed
to subscribers at one time.
There are two causes for non-
delivery either the subscriber
has moved and has not notified
us of his change of address, or

else it is due to carelessness in

‘

a
~
oe

the handling and delivery at des-
tination. Please notify us at
once if you are not getting your

numbers regularly and be sure
to make a complaint at your

na
‘i i i
oj

local Post Office. Some other
fellow may be getting some of
your mail.

139

NEW YORK SOCIETY OF
MODEL ENGINEERS
The last monthly meeting was
held Tuesday evening, Septem-
ber 14, at 15 Moore Street, New
York. <A large attendance was
on hand and there was much
interest taken in deciding on
the various details and plans for
ithe Model Power Boat Races
held September 26 on the Model
Boat Lake in Central Park, New
York. The races will commence
about 7 A. M., as only one boat
will be run at a time using the
fixed pole and length of wire.
The first race will be for mem-
bers boats only. The cup for
this race will be donated by Mr.
F. D. Grimke. All boats must
be displacement type, not over
1 metre in length and not more
than 12 pounds displacement.
There have been five boats en-

tered, most of these have been
specially built for this race.

The second race will be open
to iall comers. A Gasoline
driven boat has been entered
for this race. This boat has
shown exceptional speed in its
trial runs.

Mr. M. Bowles who has had

considerable e xperience in.
Model Power Boat Racing gave
an interesting talk on _ this
subject.

The ,next meeting of the

Marine Section will be held at
the above address on September
28, and the next regular meet-
ing will be held on October 138
at 8 P. M. AIl men interested
in this subject are cordially in-
vited. Full particulars of mem-
bership can be obtained from
the Secretary, Mr. A. A. Singer,
15 Moore Street, New York.

140

BOOK REVIEWS

Locomotive Superheating and
Feed Water Heating, 142 pages,
211 illus., and 4 colored page
plates, 11% x 8% in., limp card
covers $2.00.

The work is arranged under
the following’ chapter headings.
ue Theory of Superheated
Steam. 2. Economics of Super-
heating. 38. Brief History of
the Superheater Locomotive. 4.
Fire-Tube Superheaters (1). 5.
Fire-Tube Superheaters (II). 6.
Fire-Tube Superheaters (III). 7.
Fire-Tube Superheaters (IV.) 8.
Maintenance of Superheater Lo-
comotives. While this work is
based on English practice the
designer, draughtsman and
modelmaker will find a great
deal of practical information
therein that will be of interest
to him and may give him sug-
gestions and pointers for new
development ‘work. The illus-
trations and colored plates will
especially interest him.

The Editor,
The Modelmaker

Dear Sir:

Since sending in my query re-
garding the speeds of 1-metre
power boats in this Country—I
have run across a description of
the English boat “Sunny Jim’”—
published in the “Model Engi-
neer” for May 22, 1925.

This hydroplane is 18” from

bow to step and 24” from step
aft, and has made the truly re-
markable speed, for one lap of
the course ‘of 41.6 m.p.h.

She is powered with a 2-cyl-
inder, single acting steam plant,
7/8” bore x %” stroke, turning
a 38% x 10” pitch screw.

THE MODELMAKER

ee eee ee

Assuming 40% slip, the en- —
gine would make 7,320 R.P.M.
Making the further assumption
that the boiler pressure is 200.
Ibs. per sq. in. and cut off 50%, —
the I.M.E.P. would be about 128
lbs. per sq. in., which would pro-
duce 2.1 I.H.P. at above speed.

Probably at least 25% of this
is lost in internal friction, driv- —
ing the pumps, etc., whick would —
give a B.H.P. of 1.6. ,

I think it a pity that builders ©
of small steam and gasolene en-
gines do not take the trouble to —
properly test them.

It may not be generally known ©
that a suitable fan dynamometer
is very easy to build and will
give results within 2-3%, provid- —
ed the design and mounting are
correct. Bote

Yours truly, :

. B. Read 3

3230 Euclid Heights Blvd.
Cleveland Heights, Ohio. |

Mr. Chas. F. Clark, 111 N. 49th ‘
Street, Philadelphia, Pa., has i
sent us a photo of his Model ©
Sloop. It is of the rib and plank ff
construction, the ribs are of 44” —
oak steamed and bent to shape, ~
the planking is 1%” with separ- —
ate pieces cut to fit under the ©
stern, the keel is shaped from
three pieces of almost equal —
length. Length of Model 61” —
O. A., 47” W.L. No doubt there
are other model boat builders —
near Mr. Clark who would like :
to get in touch with him and ~
have a chat on model boats.

ete |

J z

In the May 1925 issue of the
Modelmaker on page 78 a tele-
phone number is given for Mr, —
A. A. Singer. He is still at 15
Moore St., but does not use that —

telephone number now. te” 3

A
By
=.

CHICAGO SOCIETY OF
MODEL ENGINEERS

Editor of the Modelmaker
EWear* Sirs—

The Society has spent a prom-
ising summer in the interest of

5S REL ENS

THE MODELMAKER

141

On July 22nd, a steam test
of two locomotives was made
at the home of Mr. John Mat-
thews. The tests were of an
Atlantic chassis built by Mr.
Matthews and a Pacific chassis

= Modelmaking and those attend- = pyjii by Mr. Reithmaier. The
_ ing seem to have thoroughly en- steam was obtained from a
= joyed themselves. ; Model Steam Tractor. Both lo-
_ The following meetings were comotives did well at this trial
a the most interesting. - y test. The illustration shows the
?

ei HEY Ne :

On July 8th the Society cele-
- brated its 12th Anniversary. At
_ this meeting every member gave
a brief account of his accomp-
_ lishments and their various ex-
_ periences in the field of Model-
_ making. The older men recall-
ed days before the war when
_ comparatively few men were in-
_ terested in this subject and in
general entertained the new
members with their early ex-
_periences.

Atlantic chassis under test with
the builder standing on the ex-
treme right.

The C. S. M. E. Annual Exhibit
will be held some time during
November. All those having
models which they would like to
exhibit should communicate —
with the Secretary, Mr. S. C.
Swanson, 7826 Coles Ave., Chi-
cago, Ills., as soon as possible.

A. Willard,

905 Linden Ave., Wilmette, IIl..

142

THE MODELMAKER

Mr. Harry E. Webber, 29 AI-
gonquin St., Dorchester, Mass.
is interested in Model Railways
and Locomotives. He would
like to hear from any other
Model enthusiasts living within
a reasonable distance of his
home with a-view to an occa-
sional get-together meeting.

We have had inquiries from
some of our readers for mater-
ials for large size model 1loco-
motive castings. Mr2ow ne
Daney informs us he is prepar-
ing blue prints and castings ror
a 7% in. gauge model locomotive
and will advise us as soon as
they are ready.

We understand there are a
good many real live model-
makers residing in and near De-
troit. Someone should take the
initiative and have a get-to-
gether meeting with a view to
forming a Model Engineers Club.
Such organizations bring men

together and help greatly to-
wards the development of
modelmaking.

FOR SALE

Workshop Figures made easy,
a simple explanation of fractions
decimals and metric measure-
ment for the use of Modelmak-
ers, price 35 cents. Spon, 120
Liberty Street, New York.

French Measures and English
Equivalents by Brook, a com-
plete set of tables from 1 milli-
metre to 100 metres, arranged
in three columns metres, inches
with decimals, inches with frac-
tions; and other tables. In limp
cloth to fit the vest pocket, price
50 cents. Spon, 120 Liberty St.,
New York.

Mr. Frank Birch writes that
he can now supply complete
sets of castings and blueprints
of his %” scale Pacific Loco-
motive 2144” gauge and that he
has already booked some orders
for these sets. He has finished
up one set of castings and the
engine runs first rate. The
small photo he sent us looks like
a fine locomotive. We have ex-

amined some of his finished lo-
comotive cylinders, four and six
wheel car trucks, small nuts and
bolts, etc. and must say he is a
finished mechanic. We are not
surprised to hear he has been
rushed with orders for nearly a
year. He deserves all the busi-
ness he gets because he only
supplies the best materials,
gocd clean castings and excel-
lent workmanship.

WANTED

Modelmaker, November 1924,
May 1925, March 1926. Will
exchange copy of Mechanical
Age for any of these numbers
in good condition. Spon, 120
Liberty Street, New York.

Model Railway News, January
1925. Will give 25 cents for
good clean copy. Spon, 120
Liberty Street, New York.

Model Power Boats by Hobbs
in good condition, Spon, 120
Liberty Street, New York.

Everyday Mechanics, Nos. 1 2 —
and 6 of Vol. 1, Nos. 1 2 and 3
of Vol. 2. Box 2, Modelmaker.

Modelmaker, Volume 1, Num-
ber 6, November, 1924. Model-.
maker Volume 2, Number 5,.
May, 1925. Will send a copy of
Mechanical Age in exchange,
Spon, 120 Liberty Street, New
York.

THE MODELMAKER

143

WHAT'S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or

figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE
Pacific '4” Scale Castings
$30.00 per set including draw-
ings. Pullman six wheeled and
WVulean freight trucks in O
Gauge and %” scale. O Gauge
Locomotive cylinder castings
with drawings $3.00 per pair.
O Gauge Freight or Passenger
wheels machined 2 on axle $1.25.
' Walschearts Valve Gear draw-
ings %” scale, 75 cts. Prepare
for the winter evenings, buy
from the manafacturer and get
quality and service at reasonable
prices. Bronze Balls %” dia. up.
Hexegen bolts and Nuts 2-56 up.
Boiler Fittings for Locomotives.
5 ets. for temporary list. Frank
Birch, General Delivery, High-
land Park, Michigan.
Blow Lamps, for model boilers
all sizes made to order. Model
Machine Shop, P. O. Box 5, Sta-
tion Y, New York, N. Y.

_ Model 2-Cylinder Steam En-
_ gine, boiler, torch. Write for
_ information. Wm. Siesel, Jr.,
» King St., Port Chester, N. Y.

_ Build Yourself An_ Electric
Clock! Blueprints and instruc-
tions for a novel model any-
body can build, $1.00. Particu-
"lars free, Albert Deibig, Elec-
_ trical Engineer, 1690 Park Ave.,
~ New York.

_ Own a Glider, learn to fly, buy
_ your parts from Icken, 903 Ray
_ Avenue, Ridgefield, N. J.

z
4
x

FOR SALE

Finished: Pair of Half inch
scale piston valve Locomotive
Cylinders, bore 11/16 inches:
stroke 11% inches, complete with
Cylinder Cocks, Slide Bars and
Crossheads. Tested under 125
lbs. air pressure. Beautiful
workmanship. Price $50.00 com-
plete. Address Box 7, Model-
maker, 120 Liberty Street, New
York Gity,eN; “Y.

Ship Model Fittings; Blocks,
Deadeyes, Anchors, Capstans.
Send for circular. Fisher, 1002
Etowah Ave., Royal Oak, Mich.

Locomotive Blue Prints—‘‘O”
gauge Pacific. 38 sheets, steam,
full details, $2.00. 1 sheet,
steam-electric, 75 cents. Singer,
15 Moore St., New York.

Prototype Drawings of Amer-
ican Locomotives and tenders:
Front and side elevations with
correct dimensions $1.00 each.
George D. Arthur, Glenbrook,
Conn.

Blue Prints of Ships for
Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

WORK WANTED

I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.

144 THE MODELMAKER :

TRADE “MAIN LINE” MARK ~
| THREE-FOOT RADIUS CURVES AND SWITCHES

Interchangeable with O-gauge Toy Electric Straights
SOLID COPPER THIRD RAIL

Curved sections, 20 inches long.....: rave sigact sad op eeegerecheaeeemees 65 cents
6-foot. diameter: circle; +12 = SOCTIONS sc. A seco wstwecpentereaseuse $7.50

Half sections. for: parallel “SiGim 2S.. cc. csisseccsscgoestoscecss cuad 35 cents
Switches; rightor: lettin ands i2k7..1,20cesaces. does epee eee $3.00 each

in Addition to Tin Ones

160 WOODSIDE AVE
NARBERTH, PENNA.

38 Wooden Ties to Every Section,

EGLOF SCALE MODELS

ARMATURE STAMPINGS

Non-magnetic. Clean cut, from charcoal iron. .02 thick. Price per inch.

Size 2 pole 3 pole 4 pole 6 pole 8 pole

1 50c 80c

174" 60c 90c 25¢ postage 10c
1% 75¢c eA OG
144” 65c 95¢c $1.10 80c J pune BAP
15%” ¢ $1.10 $1.10 Rt SLOG
134” 95¢ $1.15 $1.25 $1.25 $1.30 So L6e
17%” $1.40 <s 16c
a $1.30 $1.35 $1.40 “ -18¢

Order directly from this list.
We also make patterns, brass, aluminum and iron castings, do light machine work,

and carry a line of sheet, rod, and tubing, in modelmakers’

sizes.

Send 5c stamp for our 0 gauge parts list,

A. ALEXANDER
15 MOORE STREET

SINGER & CO.,
NEW YORK CITY

Please specify your needs plainly. We do not issue a free catalogue.

Aeronautical Engines

By F. J. KEAN
Second Edition Revised

CONTENTS OF CHAPTERS

Preface. Dedication. List of Illustra-
tions.
I The Nature of the Prob-
lems.
II Classification of Aeroplane
Engines.

III Relative Advantage of Dif-
ferent Types of Aero-
plane Engines.

IV Choosing the Number of
Cylinders.

V Balancing the Sliding Parts
of the Engine.

VI Carburation.

VII Ignition.

VIII Typical Aeroplane Engines.

Appendix. Index.
96 pages, 48 diagrams, 29 page plates
and 5 large folding plates, 814x5¥% in.

Cloth, $2.60 Postpaid
SPON & CHAMBERLAIN

IF at Jha 1 di

I Get this Flexible aH Portable

| | Shaft Outfit of a thousand Uses

Needed by every modeimaker, me-
chanic and for machine shop use.
It’s a precision instrument, consisting
of a ball-bearing coupling to connect
to any motor, 3 feet of flexible shaft.
ing and-a ball-bearing chuck. Oper-
ates buffing wheels, reamers,. metal
drills, files, burrs and Pa other
appliances. Uses a % H. P. motor,
obtainable at small cost.
Special Offer — Send Only $5.00

This outfit sells for $45. As a spe-
cial offer from our factory to you,
send $5 with order and pay postman
$20, plus postage, on arrival. Satis-
faction guaranteed or money back.
1 The S. S. White Dental Mfg. Co.

(Industrial Division)
152 W. 42nd St., New York

——

Hote

iy a IN MAKING

“Wade MODELS

No. 10 OCTOBER, 1926 10— Cents

MR. H. J. COVENTRY’S PISTON VALVE VERTICAL
STEAM ENGINE

146

A REAL MODEL OF A
REAL LOCOMOTIVE
14-inch Scale
- Pacific K4 Pennsylvania R. R.
Get ready now to build this fine model.
Complete set rough castings only with

’ fully detailed prints, $40 F.O.B.
Complete sets only supplied.
Terms if Desired
See Model Maker, Feb. to May 1925

. for description.
H. J. COVENTRY, M.E.

4003 CARLISLE AVE.,,
BALTIMORE, MD.

THE SHIP
MODEL BUILDERS’
ASSISTANT

By CHARLES G. DAVIS

A companion volume to his other
book, describing parts of hull fittings,
details of spars and rigging, fully
illustrated with line drawings.

266 pp., 280 illus. 6%”x9%”, buckram,
Price $5.00
SPON & CHAMBERLAIN
120 Liberty Street, New York, N. Y.

MODEL MAKERS
HAVE YOU A LATHE?
If not, let us figure on your work.
Accuracy Guaranteed
to within 1/1000th of an inch, and all

work done by an experienced
machinist.

Estimates cheerfully given.
Prices moderate.

Motor Generator Service
P. O. Box 224
DOVER, NEW JERSEY

——_____

THE MODELMAKER

“SHIP MODELS—Coupon

Easy to Build and Sell

Santa —Mariase..
Spanish Galleon.
Mayflower

Or mail this Coupon and receive this
whole set, postpaid, for $1.50.

M. W. Wade, Lawrenceville, Ill.

MODEL MACHINERY

Sole U. S. Agent for the noted Eng- |

lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasoline,
Gas Engines, Boilers, Fittings and
Trimmings; Electrical Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “‘CABLE SERVICE.”

Alfred Paul & Son, Engineers

3 Ashland Street
Melrose Highlands, Mass., U. 8S. A.

Catalogue 25c, Coin or Post Office Order
1926 Catalogue Just Issued

THE BATHE MFG. CO.

Model Engines,
Boilers, Boiler Fittings, Books,

Model Makers’ Supplies
Large Illustrated Catalogue 20c.
(refunded on first order)
Dept. S.— 5214 Woodland Ave.,
PHILADELPHIA, PA.

ARMATURE STAMPINGS

Non-magnetic. Clean cut, from charcoal iron. .02 thick. Price per inch.

Size pole 3 pole 4 pole 6 pole 8 pole

zh 50c 80c {
14%” 60c 90c 75¢ Postage 10c
14” 65c 95c $1.10 80c > 12c —
154” 1.10 $1.10 % 16c
13%” 95¢ $1.15 $1.25 1,25 $1.30 = l6c
1%” $1.40 * 16c
pid $1.50 $1.35 $1.40 18c

Order directly from this list.

We also make patterns, brass,

and carry a line of sheet, rod, and tubing,

aluminum and iron castings, do light machine work,

in modelmakers’ sizes. |

Send 5c stamp for our 0 gauge parts list.

A. ALEXANDER SINGER & CO.,

15 MOORE STREET

NEW YORK CITY

Please specify your needs plainly. We do not issue a free catalogue.

a orn eee E > Saas -

THE MODELMAKER
Published by SPON & CHAMBERLAIN
120-122 LIBERTY ST., NEW YORK, N. Y.

Issued Every Month Annual Subscription, $1.00
Copyright by Spon & Chamberlain, October, 1926
~ Vol. III, No. 10
“Entered as second-class matter Mar. 27, 1925, at the Post Office at

New York, N. Y., under the Act of March 3, 1879.”

OUR FOREWORD

The writer believes that the
question “Have you a Work-
shop” is one that vitally inter-
ests all of our Modelmakers
whether they are trained engi-
neers, mechanics or pure and
simple amateurs, for without
tools and a place to use them no
piece of model work can be con-
structed.

Many of our readers reside in
houses, where there are suitable
spaces, a light corner in the
basement, a spare room, or part
_ of the attic that can be con-
_ yerted into a real man sized
workshop. A basement space

that has good light, is dry and
airy is preferable if the owner
contemplates a fully equipped
- shop, because it has usually a
_. firm concrete floor, a good foun-
dation for machines and work
' benches. It is much easier to
keep. warm in the winter and
being near his source of suppy
(electric, water and gas), he can

have as many lights as he de-

gires and the conveniences of

gas and water connections. A

corner is best, where there are
windows on both sides, then
there will only be two sides to

- board up, making a nice cozy

- room. Measure out on the floor

the size of the space required,
then get the following lumber:
two pieces of 38”x6” for floor
plates; some 2”x4” for uprights,
and sufficient 8”x1” siding, and
a door with a good lock.

Punch four holes in the con-
crete floor and insert in each
hole a 6”x%” bolt, head down,
filling up around the bolt with
fresh cement; drill two corre-
sponding holes through each
floor plate to fasten them down
securely with nuts screwed tight.
The siding had better be nailed
on the inside. This will give a
finished appearance and a good
wall space for shelving and
places to hang up tools. It would
be easy then to build your work
benches to these partitions, leav-
ing the wall spaces with the
window lights for lathes and
such like tools.

The height of your work
benches should be carefully con-
sidered, also the question of a
moveable wooden floor, in sec-
tions, so that the worker does
not have to stand directly on the
concrete floor. Shelving, bins
and drawers can be built in un-
der the benches, but leave a
clear space between the lowest
shelf and the floor for conven-
ience of cleaning out.

The bare rafters overhead will
make it easy work to fasten
your wiring so as to have the

148

drop lights just where you want
them, and if you desire any
overhead pulley or shafting it
can be securely fixed in place.

Some men prefer to have their
workshop out of doors, but that
entails more expense for ma-
terials and
work in its construction, not for-
getting the question of heating
for winter use.

In the case of a Modelmaker
residing in an apartment house
he could not have such a com-
plete equipment as he could have
in the basement of a_ single
house. In fact, he might be lim-
ited to the space of a spare cup-
board or only a corner in the
living room. In the latter case
he could have a combination
bench and cabinet. One of our
friends has such an outfit in a
New York apartment. When
not in use it looks like a large
panelled cabinet, the top of
which lifts up, disclosing a bench
upon which is. fastened his
bench lathe and motor. On the
inside of the top are places for
an assortment of tools. The
front opens in two doors, each
fitted with places to hold tools.
Below the bench are a number
of drawers, fcr supplies, mate-
ria°- and tools. A foot controller
for his motor he places on the
floor within easy reach of his
foot, current is taken from the
house supply by using a wall
plug.

Other men have their “sanc-
tum” in the attic. We propose
to publish some articles on “Our
Modelmakers’ Workshops” and
would like to receive photos and
descriptions from any of our
readers who would kindly send
us the necessary data. Such
articles will prove not only help-
ful, but suggestive to those who
are considering the question of
having a workshop of their own.

considerable more

THE MODELMAKER

Mr. H. J. Coventry, Asso. Am.
Soc. M. E., advises us that he
has been appointed to take sole
charge of a model shop for one
of our large Eastern railroad

companies. It is being equipped
with up-to-date machinery as the
Board of Directors are anxious
to have some’ very fine scale
models built representing their
latest locomotives. We know
that our readers will congratu-
late Mr. Coventry and wish him
every success in his new work,
and we hope later on that the
Company will give him permis-
sion to supply us with descrip-
tion and pictures of some of the
models that Mr. Coventry and
his assistants build. To our
knowledge this is the third rail-
road company that has author-
ized the development of a Model
Building Department, and it em-
phasizes the fact that scientific
modelmaking is coming into its
own in the United States. Mr.
Coventry wishes us to say that
his new work will occupy so
much of his time that he will
not be able to do any more model
work for private customers, ex-
cept supply complete sets of
rough castings and drawings.

Mr. Murray W. Wade is inter-
ested in the construction of
Models of Sailing Ships. He has

the drawings of a number of
such models; which are made to
half actual size. As a Director
of Manual Training he is in the
position to know just what the
boys can use to the best advan-
tage. He can supply sets or
single blue prints of any of these
Models.

When writing for information

please enclose stamped and ad- —

dressed envelope.

“
wine

e351} we alee : ’

trials.

THE MODELMAKER

149

THE NEW YORK SOCIETY OF
MODEL ENGINEERS

The Members of this Society
held their first Model Power
Boat Races on the Model Boat
Lake, Central Park, New York,
Sunday Morning, September 26.
It was a bright sunny day with
a gentle breeze, but not suffici-
ent to unduly disturb the lake’s
surface.

A pole with fifty feet of fishing
line attached was used. Mr.
T. E. Singer, in waders, being
in charge of the pole in the lake.
RACE FOR MEMBERS BOATS

For
Mr. F. D. Grimke’s Silver Cup

For displacement boats- not
over a metre in length and not
more than twelve pounds dis-
placement. Course five consec-
utive laps on a taut cord. Each
contestant to be allowed two
The decision of the Jud-
ges to be final.

Mr. Habl’s boat was the first
to take to the water, but owing
to the hook at the-end of the
line not being properly fastened
to the boat, after steaming about
half a lap, the boat got adrift
and went ashore. It was stop-
ped by an onlooker, but unfor-
tunately the propeller struck the

bank breaking off one of the
blades.

Mr. F. Zimmer’s ‘“‘Kathleen
IV” was the next boat. It got
away to a good start and was
steaming in good shape when
on the third lap the propeller

fouled some floating weed and
the boat stopped.

Mr. W. Elliott’s “B. G. E. 32”
was the next contestant. It got
away in fine shape, but owing
to the cord not being attached to
the boat far enough aft it did
not run with a taut line.

“Kathleen IV’? then made her
second, trial, getting away to a
good start on a taut line and
completing her five laps in fine
style.

Mr. Habl had completed re-
pairs to his boat and took his
second trial. She,got away on
a slack line. On the third lap
the blow torch went dead.

“B. G. HE. 32” with torch re-
filled and boiler replenished took
her second trial getting away on
a taut line and ran eight laps
in splendid style, winning the
Cup.

There were four entries for
this Race, but owing to sickness
Mr. Thorpe was unable to finish
his boat in time for the race.

Result of Members Race for the
Grimke Cup

“B.: G. B32; 5. laps,. time.
min. 38 4-5 secs. Winner of the
Cup. Fastest lap 18 secs.

“Kathleen IV,’ 5 laps, time 1
min. 57 4-5 secs. Second place,
Fastest laps 22 secs.

Mr. Habl’s boat was not timed
for reasons given above.

THE FREE FOR ALL RACE
10 Laps

There were four entries for

this Race. Mr. Bosshardt’s “Clif-

ton,” driven by a gasoline motor,

Mr. Anton Bohaboy’s “Bobo V,”

a powerful steam driven boat,

2 1 and 2—Mr. W. Elliott and the Winner “B. G. E. 32”
3—Mr. Anton Bohaboy’s “Bobo V” }
4 and 5—Mr. E. Zimmer and “Kathleen IV”

”

THE MODELMAKER

Mr. Johnson’s Hydroplane and

Mr. Elliott’s

_ start at a fast pace.

“B. G. E. 32.”

“Clifton” got away to a good
In fact this
boat made the fastest lap, in 15
seconds. After running six laps
spark-plug trouble developed
stopping the engine.

“Bobo V” got away with a
jump on a taut line and ran nine

laps in 8 minutes then blow

torch failed.
“Clifton” took her second trial

getting off with a rush on a taut

laps then died out.

line and ran six and a quarter
The con-
necting wire to spark-plug had

worked loose.

“Bobo V” came to the start-

ing line all primed up and got
_ away on a taut line in fine style
_ reeling off the laps on 200 lbs. of

steam. On the tenth lap a sail

boat fouled the line and it part-

ed.

field of action.

“Bobo V” made a bee line
for .the shore and although a
policeman tried his best to stop

her she hit the bank pretty hard ©

and started some of her planks.
Mr. Johnson’s Hydroplane was

- given a trial run, long before any

of the other boats arrived on the

which prevented it from partici-

_ pating in the race.

Mr. Elliott’s boat did not par-

P ticipate in the Free for All Race

: owing to a broken rudder.

Results of the Second Race

Free For All—(10 Laps)
Only two entries.

“Clifton,” Gasoline power

plant, 6% laps, time 1 min. 46 4-5
secs.

“Bobo V,” Steam power plant,

3 91% laps, time 2 min. 52 2-5 secs.

No race, as neither boat com-

_ pleted the ten laps.

- compact

3 However, after .
circling the lake, the Hydro--
plane developed boiler trouble

151

In the Free for All Race both
boats during their trials com-
pleted five consecutive laps,
which were used as a basis for
determining their speeds.

“Bobo V” made the five con-
secutive laps in 1 min. 33 secs.,
or 18.6 secs per lap. “Clifton”
made the five consecutive laps
in 1 min. 25 secs or 1 lap in 17
secs.

PARTICULARS OF BOATS

“B. G. E. 32,” owner Mr. W.
Elliott. Displacement 11 Ilbs.,
length 32 in. O. A built up hull,
speed boat type, single screw, 2
biaaed pruepeiler. Power plant
—Russel 2-cylinder, single-act-
ing piston valve Steam engine.
Water-tube boiler, with super-
heating coil and gasoline blow
torch. A well built model, with
power plant, very
steady under steam. |

“Kathleen IV,’ owner Mr. E.
Zimmer. Displacement 11 1-8
lbs. Length 39 in: O. A. built
up hull, bottom of hull mahogany
top sides and deck, maple, speed
boat type, single screw, 2 bladed
propeller. Power Plant 2-cylin-
der single-acting piston, valve

‘steam engine; water tube boiler

with ‘super-heating coil and gas-
oline blow torch. A handsome
model, well balanced with com-
pact power unit. A very steady
running boat.

Mr. Habl’s Boat, 12 lbs. dis-
placement 393% in. O. A., built
up hull, speed boat type; single
screw, 2 bladed propeller. Power
Plant, Westinghouse type, 2-
cylinder single-acting piston
valve steam engine, water tube
boiler with superheating coil,
and gasoline blow torch. A
well built beamy boat. :

Mr. Johnson’s boat. Built up
hull, one metre hydroplane
Power plant, Russell 2-cylinder

152

single-acting piston valve steam.

engine, flash boiler, gasoline

blow torch.

“Bobo V,’ owner Mr. Anton
Bohaboy. Displacement 22 lbs.
42 in. O. A. Built up hull, speed
boat type, single screw 2 bladed
propeller. Power plant—Boha-
boy 2-cylinder single acting pop-
pet valve steam engine, water
tube boiler with superheating
coil and a large size gasoline

THE MODELMAKER

ignition, Ford coil and dry cells.
A fine model, good lines and very
fast. Her forefoot rising well
out of water when under way.
Her fastest lap was 15 seconds,
but for her slight mishaps she
ought to have reeled off the ten
laps in record time.

A good many members and
their friends were present as
well as a large number of in-
terested spectators.

Mr. Bosshardt’s Gasoline Power Boat

blow torch. A well balanced

powerful boat.

“Clifton,” owner Mr. Boss-
hardt. Displacement 18 lbs. 37
in. O. A., beam 9 in., depth 5%
in., bread-and-butter construc-
tion hull, power launch type,
single screw, 2 bladed propeller.
Power plant—Single cylinder,
gasoline engine 14%, in bore by
1% in stroke, 4-cycle, water
jacketed cylinder, spark-plug

The official timers for the Cup
Race were Messrs. Crosley (of
Motor Boat) and Pope. Messrs.
Bolles and Zimmer taking the
watches for the Free for All
Race.

The Judges were Messrs. Aga-
han, C. Johnson and Bolles.

Official Scorer, W. Edmunds _

FysD.

Spon.
Official
Grimke.

Photographer,

ieig: bas

-other book entitled

THE MODELMAKER

Mr. Charles G. Davis’ recent
work, “Ship Models and How

to Build Them,” while the con-
tents are excellent as far as
they go, yet it was seen at once
that it was lacking in informa-
tion on a number of very im-
portant points. The Publishers
sent out a questionaire to sev-
eral hundred Model Boat Build-
ers asking for information.
Many of these gentlemen replied

giving considerable data and
suggestions on the _ subject,
These replies were carefully

tabulated and from this and
other information Mr. Davis had
on hand he has prepared an-
“The Ship
Model Builders Assistant,’ in
which he has endeavored to sup-
ply the information not con-
tained in his other work and
he certainly seems to have ac-
complished his object. He has
prepared a number of drawings
of details which are very clear
and explicit. This book is really
additional information which,
when used with his other book,
“Ship Models,” will be found
exceedingly valuable and _in-
structive to all those who are
interested in the construction of
real Models of Old Time Sail-
ings Ships. The Ship Model
Builders Assistant contains 266
pages, 499 figures, size 6144x914",
bound in library buckram. This
work has appeared at the psy-
chological moment; because
there are an ever increasing
number of men taking up this
fascinating pastime, and now

that most of the summer sports

are coming to an end the hob-
biest is more ready to turn to
his workshop for his recreation
during the long evenings of the
coming winter.

We acknowledge with thanks

Mr. F. D. Grimke’s courtesy in

supplying us with photos of the

153

various model power boats
which competed in the N. Y. S.
M. E. Power Boat Races. Full
particulars of these races will
be found in this issue.

Model Engineer, principal
contents for July 29, August 5,
12, 19, 26 and Sept. 2: Launch
Building and Model Engineer-
ing. Small Castings in the
Foundry. On Electrical Con-
densers. A Model Blast Fur-
nace. A Small Stationary Steam
Engine. Ball Bearings. The
Science Museum South Kensing-
ton. Locomotive Prototypes.
Track Circuit on Railways.
Making Fine Jet Nozzles. Im-
proving a Cycle Dynamo. Ross
Fop--Vaives:_D;-C.- and>Ax.-C;
Fractional H.P. Motors. Diago-
nal Paddle Engines for a Six
Foot Model Paddle Steamer. A
Long Stroke Automatic Centre

Punch. In the Glow of the
Forge. A New Kind of Bearing
Metal. L. B.S. C. on Boiler Fit-

tings, Safety Valves and Other
Oddments. Television, Some
Attempts to Solve the Problem.
Locomotive Whistles. Milling
in the Lathe. A New 3%”
Double Back-Geared, Gap Bed
Screw Cutting Bench Lathe.
Model Yachting Association
News and Notes. Model Yacht
International Races. Design for
a Cool-Working Blow Lamp. A
Model Ship’s Dinghy. A Column
of Live Steam. Days in the
Shop. A Small Grinding Head
for Use in the Lathe. Mounting
“O”’ Gauge Boilers. Fittings for
“OO” Gauge Locomotives. Force
Pump and Air Chamber. Prac-
tical Private Telephone Installa-
tions at Small Cost. On Accumu-
lators. Recent _. Inventions.
Queries and Replies. Practical
Letters. Society and Club Do-
ings. Light Engineering Equip-
ment and Supplies.

154

STATEMENT OF THE OWNER-
SHIP, MANAGEMENT, ~ CIRCU-
LATION, ETC., REQUIRED. BY
THE ACT OF CONGRESS OF
AUGUST 24, :1912, OF THE
MODELMAKER, published monthly

at New York, N. Y., for Oct. 1,
1926,

STATE OF New York :
County or New York {f 85°

Before me, a Notary Public, in and
for the State and County aforesaid,
personally appeared W. Edmunds
Spon, who, having been duly sworn
according to law, deposes and says that
he is the Editor and Business Manager
of the MopELMAKER and that the fol-
lowing is, to the best of his knowledge
and belief, a true statement of the
ownership, management, etc., of the
aforesaid publication for the date shown
in the above caption, required by the
Act of August 24, 1912, embodied in
section 443, Postal Laws and Regula-
tions printed on the reverse of this
form, to wit:

1. That the names and addresses of
the publishers, editor, managing editor,
and business manager are:

Publishers, Spon & Chamberlain, 120
Liberty St., New York, N. Y. Editor,
W. Edmunds Spon, 120 Liberty St.,
New York, N. Y. Managing Editor,
none; Business Manager, W. Edmunds
Spa, 120 Liberty Street, New York,

The owners are W. Edmunds Spon,
120 Liberty St., New York; Wm, Cham-
berlain, 120 Liberty St., New York.

3. That the known _ bondholders,
mortgagees, and other security holders
owning or holding 1 per cent or more
of total amount of bonds, mortgages,
or other securities are: None.

4. That the two paragraphs next
above, giving the names of the owners,
stockholders, and security holders, if
any, contain not only the list of stock-
holders and security holders as they ap-
ear upon the books of the company,
a also, in cases where the stockholder
or security holder appears upon the
books of the company as trustee or in
any other fiduciary relation, the name
of the person or corporation for whom
such trustee is acting, is given; also
that the said two paragraphs contain
statements embracing afhant’s ‘full
knowledge and belief as to the circum-
stances and conditions under which
stockholders and. security holders who
do not appear upon the books of the
company as trustees, hold stock and se-
curities in a capacity other than that
of a bona fide owner; and this affiant
has no reason to believe that any other
person, association, or corporation, has
any interest, direct or indirect, in the

THE MODELMAKER

said stock, bonds, or other securities
than as so stated by him. ;

W. EDMUNDS SPON,
Editor and Business Manager.

Sworn to and subscribed before me
the 23rd day of September, 1926.

M. HARLEY,

J.
Notary Public, New York Co., New

York.
(My commission expires March 30,
1927.) i
(Seal) : :
Certificate filed in New York Co. No.
301, Reg. No. 7183.

Mr. Harry Jeffers, Saginaw,
Mich., is interested in Model Ma-
rine Steam Engines. He would
like to get in touch with any of
our readers in his locality who
may be interested in model mak-
ing with a view to an occasional
get-together meeting. Here is
another opportunity to form the
nucleus of a model engineering
club.

We expect very soon to have
copies of the new edition of
Paint and Color Mixing by A. S.
Jennings. This has always been
considered one of the most
practical works on this subject.
The new edition, the 8th, will
contain a good deal of new mat-
ter, about 64 more pages, includ-
ing some features not dealt with
in earlier editions. . The hun-
dreds of formulas and recipes
as well as the many colored
samples add greatly to the value
of this well known work. If
you are interested drop us a
postcard.and we will give you
fuller particulars.

Do you want to. get in touch —
with other Modelmakers in your
district? If so, send -us your
name and address stating what
line of model work you are in-
terested in and if.-you have your ~
own workshop and we will try
and put you in touch with other
Modelmakers in your neighbor-
hood.

Saee RIE RM

THE MODELMAKER

155

A OR’ x 3%” PISTON VALVE
VERTICAL ENGINE

_ By H. J. COVENTRY, Assoc. Mem. Am. Soc. M. E.

This little engine, while not
intended to be a model of any
particular type, is designed

along lines of modern propor- |

tions, and of easy construction.
Before proceeding with a de-
seription of the construction, at-

~ tention is drawn to the follow-

ing points. A piston valve is

- used, with inside steam admis-
sion,
elimination of stuffing box, and
@ its friction;
- might leak from the valve end,

giving the advantage of

any steam that

_ would only be exhaust steam,

~ seal

and as the steam is very wet,

the water acts as an effective
in conjunction with the
small grooves turned on the

valve spindle.

The piston valve also has the

NM advantage of being balanced

with the result that irrespective

of the steam pressure, the work

_ taken from the engine to move
' the valve is negligible. Whereas

a the slide valve with its flat area

and steam pressure acting on

_ the area takes quite a consider-
able amount of work from the

engine. ?
- signed models with slide valves
_ too large absorb so much ener-

In fact some badly de-

gy in. driving the valve, that

- little is left for other purposes.

Now the feature of this model

_ is the long neck provided in the
_ bottom cover of cylinder; this,
- if made a nice fit to rod, is all

_ that is required to make the rod

_ steamtight, while the piston is a
_ plain, nicely fitting plug, with a

few small plain grooves turned

on its edge.
the same way as the grooves in

These grooves act

the piston valve, and are quite
effective for pressures up to 40
lbs. per sq. in. These features all
help to produce a very free run-
ning and powerful little model.
The writer has had one of these

engines running for over 300
hours, without leakage from
steam; speed ranging around

4,000 R. P. M. with 40 lbs. sq. in.

Passing now to the Construction

Bedplate is a simple box cast-
ing, and as the seatings for col-
umn also bearings are all in the
same. plane it is only necessary
to pass a file right across. An-
other way is to hold the casting
in the chuck, and face right
across all seatings.

Next take the bearing caps,
which are cast together, and fill
up flat on bottom, and file up
the curved portion to dimen-

sions. Drill for holding down
screws, and then saw apart.
Mark the centre line on caps

and bedplate, then take a small
square file, and file a small V
notch on the centre lines on both
caps and bedplates. Now tin
the faces with soft solder, and
sweat cap and bedplates, taking
care to get the notches of cap
and bedplate in line. Drill into
bedplate, the tapping holes for
2.56, holding down screws, and
drill through for bearings.

If a small drill is used first,
followed by a slightly larger one
and so on till final 5-16_in., it
will be found quite an easy mat-
ter to obtain holes that are in
line, and exactly half in bed-
plate, and half in cap, by hand
without any special rig; because
the first small drill will follow

156

the notches already HSS in cap
and bedplate.

Before unsoldering ie caps,
file up sides inside and out to
required dimensions, and stamp
a number, or suitable mark, on
each. Now they may be de-
tached and solder wiped off.

Bearing Brasses—Among the
castings is a piece of half round
brass; take this and file up the
flat face clean, then tin it with
soft solder, cut in half and lay
one half over the other. This
gives a circular piece, which
may be held in chuck and brass-
es finished outright. Heat the
finished brasses and two _ )per-
fectly fitting halves are obtained
ready to go in bedplate. A small
brass pin, say 1-32 in. dia. let
into brass and bedplate, will
prevent the brass from turning.
The top one need not be fixed to
cap at all. A 3-32 in. hole drill-
ed in top of each cap completes
the bearings.

Next place a piece of 3-16 drill
rod on bearings, and from the
side of this, mark off centre for
front column at the correct dis-
tance, after deducting 3-32 for
half diameter of rod. Drill and
tap hole for front column, tak-
ing care to get it square with
bedplate.

Front Column is of steel turn-
ed between centres and screwed.

Back Column.—First file up
the crosshead, guide face, using
a narrow pillon file for the slide
way—or if a milling attachment
is available, it may be milled
with an end mill held in the
ehuck.

Having produced a flat sur-
face place the casting on a sur-
face plate, with the finished
face down. Now with marking
gauge scribe a line on top and
bottom feet, any point will do,
now turn on its side, and scribe
a line in centre of feet. Prick

THE MODELMAKER

punch the intersection and drill
with centre drill, mount in lathe
and face off each end as close
to centre as possible. A stroke
or two with the file will clean
off the “pip” left by centre drill
and the feet should now be
square, with guide face.

Cylinder.—First face off top
and bottom to proper overall
height. This may be. done by
holding it in a chuck. Next
mark out the centres, then clamp
on faceplate of lathe and adjust
till centre is running true. Drill
and ream from lathe back cen-
ter.

Covers.—The castings will
have chucking lugs so all that is
necessary is to grip in chuck by
the lug, face, turn and part off
at one operation. The bottom
cover has the piston rodhole
drilled and reamed at same set-
ting. A piece of % in. drill rod
with half filed away to form a D
bit, and hardened, makes a good
tool for this operation.

The hole should be drilled
first with a No. 31 drill.

(To be continued)

We have had inquiries from
some of our readers for litera-
ture on the construction of
American model locomotives. We
do not know of any book spe-
cially on this subject, except
Volume 2 of the Modelmaker,.
which contains a number of il-
lustrated articles describing the
making of model steam and elec-
tric locomotives of American de-
sign. The most important of
these articles were written by
some of the best Modelmakers
in the U. S.—A. W. Line, H. J.
Coventry, J. A. Joslin, Arthur
Curran, J. H. Guild, W. L. Daney,
Jas. G. Dunn and others.

Copies of this Volume can be
obtained from the Publishers.

~ workshop with a

- steps.

and

THE MODELMAKER

OUR MODELMAKERS’
WORKSHOPS

_ Mr. J. W. Neptune

Member Akron Association of
Model Engineers

In reply to your inquiry I am
sending you a description of my
photograph,
which I hope you will be able
to reproduce satisfactorily. It
is not as clear a picture as I
would like to have taken, but I
think it will give your readers
a good idea of its arrangement
showing the variety of tools
which it contains.

It,is situated in my basement,
which fortunately is a dry and
airy one. I have placed my
equipment as near together as
possible to avoid unnecessary
I have three benches. A
work bench with a built up back
upon which are shelves for tools
and racks to hold wrenches,
hack-saws, screw drivers, etc.,
all arranged to be easy of access
when wanted. The face of the
bench is covered with a 16-gauge
sheet of steel, which protects
the wood top and makes it a
better working surface. I have
two vises mounted on this bench,
also some drawers in the side for
sandpaper, polishing equipment
and tape for insulating purposes.
On the right end of this bench
I have mounted a switchboard
for testing, containing meters
and switches for this purpose,
handling both D. C. and A. C.
current supplied from a house
circuit. This board controls in-
strument for testing armatures
coils, etc., also magnet
charging unit. A generator and
storage batteries are under this

157

bench, also some large shelves
for storage.

On the large bench in the cor-
ner under the power meter, [
have a large cabinet of drawers,
all marked, containing such sup-
plies as screws, nuts, washers,
etc. To this bench is fixed a
large vise, also tool heating gas
fired furnace and furnace for
heating soldering irons. In the
rear of this bench are shelves
for iron and steel stock, paints
and brushes, also a small cab-
inet, or nest of drawers for
drills, reamers, taps and dies,
and extra lathe tools. Under
this bench are boxes to store
belting, pulleys, gears, and elec-
trical equipment, wire and
switches, insulators, etc., and my
compressor tanks for air which
I use for testing and for> my
blowpipe.

Machine tool equipments. My
machine bench is in rear of my
work bench. This is very con-
venient because I only have to
turn around from my _ work
bench to get at my machines. On
this bench I have mounted a
Goodell Pratt Lathe Number 454
fully equipped, including a lot
of extra parts I have made my-
self. A grinding head, which is
arranged to handle a variety of

jobs; such as sanding discs,
wire brushes, and _ polishing
tools. Then I have a sensitive

drill press that will take drills
up to half an inch. . Under this
bench I have a countershaft to
drive the above tools, also a
D. C. generator and an air com-
pressor, a heavy duty 4 H. P.
motor, which gives plenty of
power when only one machine
is in use at a time. I have a
9’ x24" screw cutting back
geared engine lathe.

At the right of this bench, but
not shown in the photo, I have
a saw table handling 6” saws

os
eal
M
<
=
ic
a
a
O
a
fa
<
=

_ and grooving head. I am about

- to install a South Bend Lathe
9"x3"

I have built all the benches,
cabinets, emory stand ana saw
table and drill press myself and
take a great pride and pleasure
in keeping my little shop clean
and in order. I feel well repaid
for all the money, time and ef-
fort expended in getting this
equipment in running shape.
This shop I call my “holy of

EIT FAY MAE SMT SB

NED LI RE 98

call, always know wnere to find
me.

I use motors for power, using
% H..P. in all.

_ [We hope this article will in-

terest our readers and induce

others to send us descriptions

and photos of their workshop.

Do not hesitate because your
- outfit may seem small and in-
significant in comparison with
Mr. Neptune’s. We all have to
make a start. Mr. Neptune is
evidently an old timer and a
_ first-class mechanic.—Kd. ]

Mr. F. W. Icken advises’ us
- that owing to press of business
he is not able to devote any
time to making up parts for the
Morgan Glider, and requests us
to notify our readers according-
ly. He appreciates all the busi-
ness they have sent him and
hopes to get some other firm to
attend to this matter for him.

our subscribers that our stock of
_ back numbers of the Model-
maker is getting very low. We
- would suggest they look through
_ their numbers and if their Vol-
- umes are not complete to let us
know what they are short be-
_ fore our stock is exhausted.
_ Back numbers are only 10 cents
~ each.

THE MODELMAKER

holies” and the boys, when they .

Just a few words to remind’

159

FOR SALE

A Real American 14” Pacific
Locomotive. Castings and
Drawings, $30.00. Bronze Balls
1%” dia. up. Small Cylinder
drain cocks $1.25 per pair. Dis-
placement lubricators $1.25 each.
pressure gauges %4” and 11%”
dia. $3.00 and $4.00. Look for
special advertisement next
month. Frank Birch, General
Delivery, Highland Park, Mich.

Constructional Blueprints —
24” Model Racing Yacht, as il-
lustrated in February Model-
maker. 1 sheet, $2.25. Perry’s
Flagship, the brig Niagara, 3
Sheets, $5.00. These blueprints
give all details necessary to
build above models. A. R. Fer-
ris, 284 Hast 151st Street, Cleve-

jand, O.

Blue Prints of Ships. for
Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Blow Lamps, for model boilers
all sizes made to order. Model
Machine Shop, P. O. Box 5, Sta-
tion Y, New York, N. Y.

Locomotive Blue Prints—“‘O”
gauge Pacific. 3 sheets, steam,
full details, $2.00. 1 sheet,
steam-electric, 75 cents. Singer,
15 Moore St., New York.

WANTED.

Model Railway News, January
1925. Will give 25 cents for
good clean copy. Spon, 120
Liberty Street, New York.

WORK WANTED
I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.

160 THE MODELMAKER

FOR SALE WANTED

French Measures and English Model Power Boats by Hobbs
Equivalents by Brook, a com- in good condition, Spon, 120
plete set of tables from 1 milli. Liberty Street, New York.
metre to 100 metres, arranged: - r y Ta
in three columns metres, inches = ee ae Au ie
with decimals, inches with frac- |i cl Al i
tions; and other tables. In limp ih Ae }
cloth to fit the vest pocket, price .
50 cents. Spon, 120 Liberty St. Ne Ni)
New York. i rnc

Get this Flexible an and 4 Portable

ps j

WANTED
Model Railway News, January | Shaft Outfit of a thousand Uses
1925. Will give 25 cents for [ Needed by every modeimaker, me-
good clean copy. Spon, 120 chanic and for machine shop_ use.
Liberty Street, New York. ; It’s a precision instrument, consisting

of a ball-bearing coupling to connect
to any motor, 3 feet of flexible shaft-

ing and a ball-bearing chuck. Oper-
THE DOMINION TOOLS ates buffing wheels, reamers, metal

m @6=>- drills, files, burrs. and many other
& CASTINGS CO. appliances. Uses a 4 H. P. motor,
433 HOMER STREET obtainable at small cost.
Bye tte B ao ce Special Offer — Send Only $5.00
IVER, B. C., CANADA This outfit sells for $45. As a spe-
We carry a stock of goods from the {f Cial_offer from our factory to you,

send $5 with order and pay postman

followin British firms: 3
3 Seah bane ope ees $20, plus postage, on arrival. Satis:

Stuart Turner, Ltd.

A faction guaranteed or money back.
Mills Bros.. of Sheffield €\ The S. S. White Dental Mfg. Co.
Liverpool Castings & Tool Supply, Ltd. ‘1 (Industrial Division)
Leeds Model Co., Ltda. a 152 W. 42nd St., New York
Economic Electric, Ltd. As)

Jackson Rigby, Ltd. (of Shalford)

THE WADE BENCH LATHES

No. 2
Back Geared .
Screw Cutting

Capacity: 4” dia. x 12” or 18’’ length.
TURNING — FACING — BORING — DRILLING
WINDING — THREAD CUTTING
Nove? SP AeG at al oe eoioscaneeine $28.00 No: 2 Back -Geared 4” %-127... $58.00
No. 1 ee GIES OES te Ns odeshceisreee BOLO, No. 2 ra aa hl ee ST ee $65.00

Catalogue showing details and accessories on request.

THE GEROLD COMPANY (DEPT. M 19)
120-122 LIBERTY STREET, NEW YORK, N. Y.

THE

NODELMAKER

FOR THOSE
INTERESTED IN MAKING

| WORKING MODELS

Vol. Ill. No. 11 NOVEMBER, 1926 10 Cents

Poe eel ae ee

4” GAUGE 4—4—0 LOCOMOTIVE
MADE BY MR. C. C. HELMICK

162 THE MODELMAKER ae ie

No. 1, 56” x %4”
PISTON VALVE
VERTICAL ENGINE

Complete set Rough Castings, Mate-
rials, Screws and Print for construct-
ing this model now ready. Price $7.50
per set, postpaid. See article starting
in October issue of The Modelmaker
for details of construction.

H. J. COVENTRY
3601 Windsor Mill Road
Baltimore, Md.

THE DOMINION TOOLS
& CASTINGS CO.

433 HOMER STREET
VANCOUVER, B. C., CANADA

We carry a. stock of goods from the
following British firms:
Stuart Turner, Ltd.

Mills Bros. of Sheffield
Liverpool Castings & Tool Supply, Ltd.
Leeds Model Co., Ltd.
Economic Electric, Ltd.
Jackson Rigby, Ltd. (of Shalford)

Per 6-Foot Dia, Circle, $7.50.

SHIP MODELS—Coupon

Easy to Build and Sell

Santa aiviatia ccs
Spanish Galleon.
Mayflower .....
Pirate: y vi geenteusteacte

Total

Or mail this Coupon and receive this
whole set, postpaid, for $1.50.

M. W. Wade, Lawrenceville, Ill.

MODEL MACHINERY

Alfred Paul & Son, Engineers

3 Ashland Street
Melrose Highlands, Mass., U. S. A.

Catalogue 25c, Coin or Post Office Order
1926 Catalogue Just Issued

EGOLF SCALE MODELS
100 Woodside Avenue

Narberth, Pa.

Reading Railway Pacifics O Gauge
wees Ot
Smoke Device, Hand Reverse, Full Gear,
With Tender,

201’ Classes, Electric Drive,

Postpaids ssf aeea eta $50

“Main Line” 3-Foot Radius Curves & Switches
Solid Copper,

Central Third Rail
Switches, $3 Each.

THE MODELMAKER

BOUND VOL. I.

1924. $1.60

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. II.

1925. $2.10

Price 10c each.

SPON & CHAMBERLAIN, 120 Liberty Street, New York

THE MODELMAKER

Published by SPON & CHAMBERLAIN

120-122 LIBERTY ST., NEW YORK, N. Y.
Editor—W. Edmunds Spon

Dated Bevery Month

Annual Subscription, $1.00

Vol. Il.

No. 11

“Entered as second-class matter Mar. 27, 1925, at the Post Office at
New York, N. Y., under the Act of March 3, 1879,”

OUR FOREWORD

Another wonderful Exhibition
of fine models comprising exam-
ples of Modelmaking in all
branches of this art has just

-been held in London, England,

and from the particulars given
in recent issues of the Model
Engineer it will go down in his-
tory as one of the most complete
and successful exhibitions of
modelwork.

Modelmaking has reached a
high stage of perfection in Great
Britain, where it embraces a
very large following drawn from
all walks of life.

The interests which contrib-
uted to this great Show may be
classified under four Sections.

1. The Loan Section, a valua-
ble collection of Models of all
kinds both old and new.

2. The Trade Section, includ-
ing models, supplies, tools and
accessories.

3. The Societies and Clubs.

4. The Competition Section

comprising the individual work

of nearly 200 private Model-
makers.
Besides these four sections

were. many other attractions,

two especially deserving special

mention. Major Phillips series

of demonstrations of Wireless

’ control of model railways and

The Model Engineer Movies.

Although the actual place of
Exhibit was beyond the reach of
most of our readers, it is quite
possible that some of our Ameri-
can modelmakers were on the
spot and able to fully enjoy it
from actual observation.

The interest in Modelmaking
is growing rapidly in the U. S.
and Canada and it is to be hoped
the time is not far distant when
it will be possible to arrange for
a similar Annual Exhibition of
Models in one of our great cen-
tres, where Models from ail
parts of this country can be
shown, and competitions for
awards aranged for, and where
our friends in the trade can dis-
play the, materials they spe-
cialize in.

The Chicago Society of Model
Engineers have given an annual
exhibition for about ten years,
and they are planning another

_ Exhibit this month.

The New York Society of
Model Engineers are _ also
making: arrangements for their
first public exhibition of model
work.

The Akron Association of
Model Engineers have a growing
membership, including a num-
ber of experienced modelmakers
who have constructed quite a
few fine models. It would help
them to increase their member-

164

ship if they could arrange a pub-
lic exhibit of their work.

The Toronto Society, The
Canadian Model Engineers Club,
have made several very credit-
able exhibits of model work at
the Canadian National Annual
Exhibition at which no doubt
they will be represented this
year.

Detroit and its environs house
a good many interested in this
Hobby. No doubt they will be
able in the near future to stage
a public exhibit of their Work
and by this publicity get to-
gether sufficient supporters to
organize a Model Engineers
‘Club.

4” GAUGE LOCOMOTIVE
4 4-—-)
Mr. C. C. Helmick
Member Akron Assoc. M. BE.

This working model Locomo-
tive was constructed by Mr.
Helmick and is an exact repro-
duction from the original 1900
that hauled President McKin-
ley’s Funeral Train on the N. Y.
C.R. R. We produce it not only
for its historical value, but as
an example of a fine piece of
scale model work.

Data

Length, 41”

Height, rail to cab top, 10%”

Gauge, 4”

Wheels Drivers, 5” dia.

Wheels Pilot Truck, 144” dia.

Wheels Tender, 14%” dia.

Cylinders, 1” bore by 15%”
stroke.

Boiler, copper tube.

Tubes, 144” copper.

Number of tubes, 5.

Boiler Pressure, 125 Ibs.

Fuel, coal.

THE MODELMAKER

a, | 2 + ao
at, T=", i

Our greatest obstacle to united
action is the. fact that: our
Modelmakers are scattered over
a vast extent of territory, but
if the various groups could each
put over a small public exhibit
annually the way would eventu-
ally open up for an Annual Na-

NE Et. is i ie a aaa
; “4 Ss < 5 2

tional Show that would do jus- — |

tice to the skill and workman-
ship of the American Model-
maker. d ; Fie

Pass the good word along,
boys, and see what your town
can do in this matter.

We shall be glad to hear par-
ticulars from any club who have
held an Exhibit this year.

Tender Capacity, 2 qts. water.
Tender Capacity, 2 lbs. coal. —
Couplers, M—C—B Automatic.
Air brakes working on all
wheels except pilot truck.

Cab contains the regular
equipment including throttle on
locking quadrant. Reversing
lever, locking in any position.

Bell, whistle and headlight
work.

Feed pump in tender.

Dummy injector in Cab.

Now that Christmas is draw-
ing near most of our readers
will be thinking of Christmas
Gifts. An annual subscription
to your favorite magazine, a
lathe, some necessary tools, or
practical handbooks are items
that might go down on your list.
It may be a welcome suggestion
not only to make up your lists
early, but to place your orders
as soon as possible to ensure
prompt delivery.

i
_ >

THE MODELMAKER 165

MODEL OF THE CLIPPER SHIP
- FLYING CLOUD

BUILT BY MR. J. W. C. CORBUSIER

I am sending you two pictures of my Model of the Clipper Ship
“Flying Cloud,’ Donald-McKay’s famous Clipper Ship. She made
the record run of 89 days from New York to San Francisco. This
record has never been surpassed by any sailing vessel, and only
equalled by one, the “Andrew Jackson.” The “Flying Cloud” was
built by McKay in East Boston in 1851. Length 225 ft., breadth
40 ft. 8 in., depth 21 ft. 6 in. Tonnage 1783.

My Model was made from drawings by the Boucher Co., and most
of the rigging from drawings by Mr. G. B. Douglas.

The hull is 26144” L. W. L. and the rest in proportion according
to the drawings. She sails very well under a moderate breeze
and would go under a stiff breeze if it could be reefed, but it is
too small for that.

+The rigging is all fish lines of different sizes and all sails will
turn to catch the wind from one side or the other; the lower yards
are hauled same as on the actual boat, but the others are run from
one end of the yard through a block fastened at the proper place
to the other end of the same yard, the fake ropes run from this
block to the pins.

All blocks and deadeyes are made from celluloid knitting needles,
bored and grooved as real blocks are. —

Most of the deck houses and fittings are made out of cardboard
to lighten the weight, as I have found it hard to have a boat draw
the proper amount of water and not have it top heavy. The wheel
is made from a piece of brass clock wheel.

Details and Measurements

Scale, 144”=1—0”

Length, O. A., 2834”

Length, L. W. L., 2614”

Depth Main Deck to Keel, 34%”

Beam, Midships, 514”

Hull, 4-piece bread and butter type, hollow, walls 14” thick

Dimensions of for’ard deck house, 3” by 514”, height 3 1/16”

Dimensions of aft deck house, 19/16” by 2%”, height 31/16”
Dimensions of aft companionway, %” by 15/16”, height 14”

166 THE MODELMAKER

Height of top of bulwarks from deck, 11/16”

Material for rigging, fishlines of various sizes, small 4% test, .

medium 6 test, large 14 test.
Number of deadeyes for lower masts rigging, 144
Number of deadeyes for topmasts rigging, 44
Number of deadeyes for topgallant masts rigging, 16

Number of blocks used, 121

Number of small boats, 5

Blocks, owing to their smallness none of them have sheaves,
but they-are pierced with 1, 2 and 3 holes to act as single, double
and triple blocks. Blocks are 3/32”4 large way of oval and as
small as can be made in width necessary for 1, 2 or 3 holes.

Blocks and Deadeyes are made from celluloid knitting needles
as wooden oneg are too prone to break.

Deadeyes, 4%” round, 1/16” thick.

——

me THE MODELMAKER 167

Dimensions of Masts and Spars

dia.
Length of dia. at heel thin end
SPU OUILS task acl eee. y ees ‘ 74" 7/32" 3/16”
Bowsprit, exposed ...... 314" 11/16” 9/16”
Lower foremast,fromdeck 74%” 34" 5/16”
Pocetowmast. sits .-...'. 514” 3/16” 8/16”
Foretopgallant mast .... 734" 1" 1/32”
Main mast, from deck... 8%" 34" 36"
EADY CO DINER LCC. oak a.m 0 0's 6” 3/16” 3/32”
Main topgallant mast.... 814" ie" 1/32”
Mizzenmast, from deck.. (& a tf LO!
Mizzen topmast ........ 454" Ya" 3/32”
Mizzen topgallant mast. . 614" 3/32" 1/32"
Yards, foremast dia.at middle — dia. at ends
(AVN AW Ca Sasa oa RI a 834" m4" 3/32"
ODN tierce ain ses 67%” 3/16” a) se
at Dee IE oS eels, 5 5B" 3/16” 1/16”
|Sla N29 SRS A eee re 4” 5/32” 11 Ole
LIDNSE ROY al or. 8 254" yy" 1/32” 4
Yards, mainmast
NEU es eeW es Se 1036” MNO 3h 3/32”
POPS a rede gait cous. 8” 7/16” 3/32"—
Topgallant: ac. Se taas 614” 5/32” 1/16”
ROY Greater wheter the a's tek 5 a 8 43Q" 1g" 1/16”—
WppereRoeyalc 5 oi. af Le" 1/32”
Yards, mizzenmast
LAG TR SUG fl Ae nee 8” 3/16” 1/16”
EOF ah SIGE BY es Aaa ane 634” 5/32” 1/16”—
Topgallant Siehive see) o%S sar 434" 1" 1/32”.
PROV EN poe tei cece ck 314": yn 1/32”
Upper Royal. 3.5... 234" 3/32" 1/32"—
dia.atheel dia. thin end
MAINDOONY ses asC.c c'e 6s 67%” 3/32” 1/16”
(E297 one COR ea ie oe 47%" 3/32" — 1/16”"—

Where the + sign is given it indicates a little over the measure-
ment, and where the — sign a little under the measurement.

168

THE MODELMAKER

AKRON ASSOCIATION OF
MODEL ENGINEERS

Mr. J. W. Neptune.

The members gathered at the
home of Mr. Yost on Wednesday
evening, October 20th. The
business session was very in-
teresting. A number of letters
were received asking for infor-
mation about this Association,
also applications for member-
ship, some of which were voted
upon.

There were Visitors present
who brought some models for
inspection.

The President, Mr. C. H. Lea,
brought his “O” Gauge Locomo-
tive, 2—6—0, and steamed her
up. She worked fine.

Mr. Yost’s Single Acting
Marine Type Steam Engine was
also tested out; a fine piece of
work.

Mr. Bans showed a 2-cylinder
Marine Engine which he has un-
der construction.

Mr. Brickley and Mr. Pinpley
each have a locomotive under
construction.

I have been delayed in my
own work waiting for a new
South Bend Lathe, but when I
get it installed I will make the
shavings fly.

Our next meeting will be on

Sunday afternoon, October 31st.
We have decided to hold our
meetings, in future, on Sunday
afternoons to accommodate our
out-of-town members and others
who work on night shifts.

After the business session was
over our wives were admitted
and we sure had a fine time.

We shall be glad to welcome
anyone interested in model work.
Just send your name and ad-
dress to me at 130 Paul Court,
Akron, Ohio.

I also enclose a photo of Mr.
Helmick’s Locomotive with some
data.

The San Francisco Model
Power Boat Club seems to be
a real live organization.
Secretary is Mr. Harry Cook,
1806 Laguna St., San Francisco, -
Calif. All of our Californian
readers interested in model
power boats should get in touch
with this gentleman and ask for
particulars of membership.

The American Society of Me-
chanical Engineers have issued
a small eight-page pamphlet en-
title Rules for the Construction
of Miniature Boilers, Section V,
A. S. M. E. Boiler Construction
Code. They make a charge of.
10 cents. We think this pam-
phlet will interest any of our
readers who are contemplating
the designing of a boiler.

One of our advertisers draws
our attention to a slight misun-
derstanding on the part of some
of his customers. When they
purchase a complete set of cast-
ings and drawings they think it
also includes materials. He asks
us to make a little explanation
as follows: a complete set of
castings and drawing does not
include materials. The word
materials may cover a host of
items, such as nuts and bolts,
odd pieces of metal, standard
rod, sheet metal and all kinds
of finished fittings. To cover all
of this the advertisement would
read as follows: Complete set
of castings, all parts, nuts and
bolts, finished fittings and blue-
prints. We trust our readers
will clearly understand the dis-
tinction as drawn above.

The |

rt ‘THE MODELMAKER

169

Valve chamber is turned from
- % in. brass rod drilled and
~ reamed 3-16 in. The outside
ghould be turned an easy fit in
_ cylinder, as it will eventually be
tinned and sweated in. The
steam passages may either be
- milled down with end mill, or a
flats may be filed, if milling is
~ not possible.
; The steam ports are drilled
; taking care that they are ex-
actly the correct distance apart.
- It is perhaps better to drill the
- ports before completely finish-
ing the flats, filing just sufficient
flat to start the drill true and
_ then deepen the flat after drill-
ing. The top end of chamber
is tapped out for screw: cover
~ plug, run the 3-16 in. reamer
through to clean out any burrs
from drilling the ports and the
chamber is ready for cylinder.

Now make a little jig for drill-
- ing the port in cylinder (Instruc-
- tions for this were given in my
- note in July Modelmaker “Drill-
ing Holes at an Angle’”’), bolt it
in cylinder and drill the ports
into the 7-16 in. valve chamber
hole. If everything is done
right, when the valve chamber is
placed in cylinder the flats, or
- recesses, in chamber should line
up with the drilled ports in cy-
linder. Now tin the chamber
with soft solder, heat up the cy-
_linder, and tin the inside of 7-16
‘in. hole, finally push the cham-
ber in with a_ reciprocating
and rotary motion and let it set,

_ Well in line, this can be ensured

taking care that the ports are

A 5%” x 4” PISTON VALVE
: | VERTICAL ENGINE
By H. J. COVENTRY, Assoc. Mem. Am. Soc. M. E.

(Continued .from page 156)

by a mark scribed on top of the
chamber and cylinder before
finally fitting.

Piston may be now turned to
a nice sliding fit in cylinder bore
and hole for piston rod drilled,
at same setting.

Piston Rod is of drill rod and
therefore true to start with, so
hold the piece in self-centering
chuck and turn down the small
shoulder to a tight fit in piston,
leaving a small amount for
riveting over. This latter must
be done carefully and evenly by
holding the rod in a vise between
copper clamps and close up to
piston. With light blows and
using the ball pean end of the
hammer tap around the edge of
the piston rod end.

Crosshead is the next item.
First file up the sides and slip-
per edges and face, square and
flat. Now take the bottom of
cylinder cover, and screw down
to top of column at the right dis-
tance from center line, place
crosshead in guide and clamp it
to guide close up to cover. Us-
ing the piston rod hole as a jig
it is easy to drill the crosshead
for piston rod.

_ Piston Valve is a plain turn-
ing job made of Phosphor, or
Tobin, bronze turned to a nice
close, but free running, fit to
valve chamber. Before remov-
ing from lathe the scribe line
should be made with a sharp V
tool. This line is used in the
sitting of valve.

Eccentric rod should be filed
up clean all over and bored out

170

x
. ee ee

THE MODELMAKER

in chuck. The fork end should
be drilled first, then the opening
made with a warding file. Tap
one side and open the hole on
opposite side to admit valve rod
pin.

Eccentric is made in two
pieces, one a plain disc with a
single flange and the other a
cheek with boss to receive a set
screw. The flanged piece is
held in chuck, turned all over to
dimensions, and parted from the
chucking piece. Then the hole
for shaft carefully marked off
from center and drilled to suit
shaft.

The other part of eccentric is
turned by holding in chuck by
the flange, and taking a truing,
cut on the chucking lug, then re-
move from chuck, and hold by
the lug and turn the outside dia-
meter and face right across, thus
cutting off from the Jug. Mark
the center for shaft also the hole
for driving pin. Hold against
the drill pad in back center and
drill for shaft. Now make a
smali short mandrel and drive
the casting on. Hold mandrel,
in chuck and turn the boss, also
a light finishing cut may be
taken over face of flange se a2
to ensure the shaft hole and face
being square. Finally drill hole
for the driving pin, and drill and
tap boss for set screw.

Now take the two pieces of
the eccentric and place them on
the shaft, or a piece of drill rod,
get the flanges in line, and then
drill a tapping hole in the
flanged dise piece for the driving
pin.

Crankshaft is cut from CR 8
T flat bar % in x 5-16 in. Mark
out with the square, also center
the ends for shaft and crank.
Then saw away the metal be-
tween the webs. Mount in lathe
on the crank center and turn
the crank pin, also inside faces

of webs, taking light cuts, and
using a narrow tool. When this
is done saw away the metal
from shaft portion, and lightly
drive a piece of hard wood be-
tween the web cheeks. This
must not be jammed in too tight,
or the shaft will be sprung out
of true. Now mount in lathe
centers and turn the shaft one
end at a time. A few strokes of
a file will finish the web edges.

Flywheel should be chucked
with outside jaws gripping the
rim, face boss and drill for shaft
Turn a short piece of steel to
a tight fit in boss and drive
wheel on. Hold the mandrel in
chuck using inside jaws and fin-
ish the wheel outright.

Connecting Rod—The first op-
eration is to saw off the big end
cap, file the surface flat, also the
rod end, tin both with solder
and sweat together. Now clean
up the sides of fork end, also a
few strokes with a file from end
to end will accomplish this.
Mark out the center of big end
exactly on the joint, and with
the dividers scribe the cross
head wrist pin center, from the
big end center. Prick punch
and drill big end for crank shaft,
fork end must be drilled tapping
size. Next lay the rod on a flat
surface, and mark the centers
at each end. Drill with a small
center drill, mount between
lathe centers and turn body of
rod, also the fillet of big end
and radius at fork end.

Drill and tap big end for bolts,
unsolder the cap and clean up
the joint. A 3-16 in. mandrel
must now be made a tight fit in
big end so that the connecting
rod may be gripped tight on it
by means of the cap bolts. Mount
the mandrel between both cen-
ters and with light cuts face up
each side of fork and big end at

same time bring down to di-

ange fF

THE MODELMAKER

mensions, and centralizing about
the body of rod.

The next operation is to drill
the fork end laterally and saw
down, then finish up with file to
form the fork. Open one side
of fork with a clearance drill
and tap the other side for wrist
pin.

Fitting—We are now ready
for erecting:

1lst—-Screw front steel column
into bedplate.

2nd—Mount bottom cover,
which has already been screwed
to the back column, and put nut
on top of front column. The
back column should now seat
nice and square on bed plate, if
everything has been done cor-
rectly. Tighten down the front
nut.

3rd.—Drill through foot of
back column into bedplate and
tap for screws.

4th.—Put piston in rod
through bottom cover and cross-
head on the rod. If it is tight,
place a little powdered glass and
oil on the guide face and work
up and down. This will produce
a good bearing and nice sliding
fit.

When this is satisfactory drill
a hole right through crosshead
and piston rod and fit a small
taper pin. A piece of 20 G wire,
or a thin nail, filed slightly
tapered while revolving in the
lathe will make a good pin.

5th—Crankshaft and connect-
ing rod may now be fitted in,
and before proceeding further,

-- revolve the crank shaft to see

that piston rod, cross head and
connecting rod are all free run-
ning.

6th.—Take bottom cover off,
line up on cylinder and tap for
screws. Make the joint with a
thin brown paper gasket soaked
in boiled oil. Do the same with

Lin

top cover. When the cylinder
with piston rod in it may be
screwed back into columns.

7th—Revolve the crank again
to see that the piston works
freely and then assemble the
valve gear. First slide the
flange disc part of the eccentric
on crankshaft, then the eccentric
rod is slipped over the eccentric
finally the boss portion of ec-
centric is attached to its com-
panion by means of the driving
screw. The eccentric must now
be located at the correct angle
from crank. Set the crank on
top dead center and twist the
eccentric till it is the correct
angle behind the crank.

With an inside steam admis-
sion piston valve the eccentric
lags behind the crank, instead
of being in advance of the crank
as when a slide valve is used.
A simple way of setting the ec-
centric is to take a piece of
sheet material and set out the
angle. Drill a hole at the cen-
ter, so that the templet can be
slipped on the crankshaft.

Now set one line of the angle
vertical or parallel, with column
and bring the highest point of
eccentric down to register with
other lines.

Tighten the screw in boss.

8th.—Put the valve in cham-
ber and bring the scribe line on
it level with the end of chamber.
Now adjust the screw eye till
the eccentric rod pin can be

slipped into place. Lock the
eye with the nut.
9th—Screw in the _ valve

chamber plug mount the fly
wheel and screw in the steam
pipe.

10th.—The engine may now
be tested with air, or steam, first
oiling up all running parts and
putting a good dose of oil on
top of piston valve. If every

172

thing is O. K. the screw in ec-
centric boss may be sunk a little
in shaft by drilling a counter
sink for end of screw to bear in.
lith—The cylinder may be
lagged with asbestos and finish-
ed off with sheet iron lagging;
held on with a narrow polished
steel band top and bottom. The
ends of bands may be held to-
gether with a touch of solder,
and the joint filed off flush.

Mr. HE. H. Grafton, Detroit,
Michigan, writes us he has
started on a design of a Model
Pacific Type Steam Locomotive
1144” Secale and when he has com-
pleted this model and tested it
out he will send us some par-
ticulars.

Mr. C. H. Hill, 560 South Pearl
Street, Denver, Colo., is inter-
ested in the construction of a
Model Locomotive. He would
like to get in touch with any
Modelmakers in his _ locality
with a view to an occasional
get-together meeting.

Our subscribers can help us
very much if they will kindly
favor us with the renewals of
their subscriptions for our maga-
zines as soon as possible. The
compilation of the new subscrip-
tion Lists for 1927 is a consider-
able undertaking, and an early
reply to this request will be ap-
preciated.

Mr. William Lewellyn, 1617
Church St., Galveston, Texas, is
building: a. Model of-an Inter-
Urban Electric Car, scale 3%”,
or Gauge 1, the current to be
taken through a trolley from an
overhead conductor. He would
like to get in touch with some
of our readers who have built

similar cars or a multiple-unit

aw a ae ee eee ieee tes

THE MODELMAKER

electric car, as there is some
information that he would like
to get. We hope that some of
our readers will be able to help
out a fellow Modelmaker who is
so far away from the erent cen-
ters.

Mr. J. W. Hoelzer, 98 Ave. D,
Rochester, N. Y., has been for
a number of years interested in
the construction of model steam
engines and boilers, locomotives
and machinery. As a reader of
the Modelmaker he would like
to get in touch with any one in
his locality interested in model-
work with a view to forming a
club for mutual advice and en-
couragement.
gentleman will hear from a
number of our readers and that
it will not be long before Roches-
ter has its own Model Engineers
Society.

Mr. G. A. Knapp, 1824 Mans-
field Ave., Spokane, Wash.,
writes us he is a “model-craft”
enthusiast, and would like to
form a club or society locally for
the purpose of stimulating and
promoting interest in various
classes of model work.

his district to get in touch with
this gentleman either personally
or by letter with a view to help-
ing him along in his good work.

When writing to us about your

that you kindly mention not only
your new address, but your old

address, also state which maga- —

zines you subscribe for. Our
subscription cards and stencils
are all classified under states

alphabetically. Compliance with —

the above request will simplify
our work in looking up subscrip- —
tion cards,

We hope this |

We
would ask any of our readers in

_ - .

4
.
q
x
4
4
‘
a

~~
F,

“ee Te

Ratio, 5:1
-x7/16” S.

THE MODELMAKER

MODEL POWER BOAT
RECORDS

Compiled by
Frederic Drayton Grimke
for his own personal use.

| ENGLISH RECORDS.

SUNNY JIM III.—41.6 M. P. H.
Displacement unknown. O. A.
length 42”, beam 9”. Hydroplane,
one step, wood sides, metal bot-
tom. Engine, piston valve, 2-
cylinder, single-acting, %” B. x
3%” §. Flash Boiler, 35’—0”
5/16” tubing. Blow torch, nozzle
2” dia. x 6’ long. Gas tank, 100
lbs. pres. Propellor 344” dia.
10” pitch. 2 blades. Water
pump, phe Bix var..ta %". =
Oil pump, 5/32” B
Ratio: 10:1, driven
from water pump shaft. M. BE.

. Volume 50, page 574.

_ Displacement 13—14 lbs.

minum bottom.

DB top O e+ bok
type flash boiler, 33’

BULLRUSH III.—38 M. P. H.
O. A.
length 39”, beam 14144”. Hydro-
plane, one step 3-ply wood, alu-
Engine, slide
single-acting,
%”" §S. Twin coil
pao yn

valve, 4-cylinder,

and 12’—0” 5/16” tubing. Blow

torch, 2 nozzles, 14%” dia.

A geehnnas a

ee pump, %4”

Gas
tank and pressure data unknown.

Propeller, 334” dia., 12” pitch, 2

blades. Water pump, D. A.
5/16” B x %” S., Ratio 10:1. Oil
Bx 3,” S. Ratio 66:1.
. E. Volume 49, page 606.

CHATTERBOX III.—37 M. P.

H. Displacement 13 Ibs. 14 oz.
0. A. length 395%”,
draught 1”.

step, tin plate.
der single-acting,
_§., type of valve unknown. Flash
type boiler 40’
Blow torch, 2 nozzles, 1%” dia.,

beam 12”,
Hydroplane, one

Engine, 2-cylin-
IR" B. se Ik"

—0” 4%” tubing.

178

2” dia. x 8” long. Gasolene tank,
75 lbs. pres. Propeller 37/16”
dia., 10” pitch, 2 blades. Water
pump, 3” B. x 7/16” S., Ratio
4:1.

CHATTERBOX II.-—36 M. P.
H. Displacement 14 lbs. O. A.
length 3934”, beam 10”. Hydro-
plane, one step, tin plate. En-
gine, %” piston valve, 2-cylinder
single-acting, %” B. x %” §S.
Flash type boiler, 30’—0”, 5/16”
and 10’—0” 4%” tubing.
torch, 2 nozzles, 15%,” dia., and
2%” dia. x 9” long. Gasolene
tank, 75 lbs. pres. Propeller
35/16” dia., 10” pitch, 2 blades.
Water pump 3” B. x 9/16” §
Ratio 4:1. Oil pump 3/16” B. x
C/16" 25. Rai. O08): Mio.
Volume 49, page 549.

MYSTERY.—30 M. P. H. Dis-
placement 12 lbs. Hydroplane
type hull, further data unknown.
Engine, 2-cylinder, single-acting.
Further data unknown. Flash
type boiler 32’—0” tubing, size
unknown. No more data on this
boat available. M. E. Volume
45, page 315. °

EVIL SPIRIT.—26 M. P. H.
Displacement 8 lbs. 10 oz. O. A.
length 3934”. Modified V hull,
mahogany and aluminum. En-
gine, 2-cylinder single-acting
13/16” B. x %” S. Flash type
boiler 13’—0”, %4.” and 7’—0”
5/16” tubing. No data on torch.
Propeller, 3144” dia., 3” pitch, 2
blades. Water pump 34” B,.,
stroke variable. Ratio 5:1. Oil
pump 3/16” B. x stroke variable.
Ratio 120:1.

BULLRUSH II.—15 M. P. H.
Hull data unknown. Engine,
slide valve 2-cylinder single-act-
ing 13/16” B. x %” S. No fur-
ther data known.

(To be continued)

Blow |

174

THE MODELMAKER

MODEL ENGINEER Vol. 7.

How to Become an Electrical Engineer.

How to Make a Lever Switch.’ Illustrated.

How to Ilake a Model Battleship. Detail Drawing.

Bow. to fake an Air Compressor, for Driving Model Engines. Detail
rawings.

How to set a Simple Slide Valve. Illustrated.

How to Make a Simple Model Steamer. Diagram.

How to Make an Electrical Indicator. Detail Drawings.

How to Make a Model t lectric Launch. Detail Drawings.

How to Make a Gramaphone. Detail Drawings.

How to Test Sma 1! Engines and Boilers. Diagrams.

How to Make Clock Work Locomotives Detail Drawings.

How to Make a Model Vertical Marine Engine. Detail Drawings.

How to [ake a Built-Up Horizontal Steam Engine. Detail Drawings.

How to Make a 40-Ampere-Hour Accumulator. Illustrated.

How to Make a Model Steam Travelling Crane. Detail Drawings.

How to Make a1 ‘10H. P. tlectric Motor. Detail Drawings.

How to Make a Small Lathe from * Scrap.’’ Ilustrated.

How to flake a Power Fretsaw Detail Drawings.

How to Make a Spring Lathe Chuck. Diagrams.

Model ‘‘ Willians’’ C.ntral Valve Engine. Detail Drawings.

Two Simp'e Forms of Resistance. Illustrated.

The Motor Bicycle: Its Design, Construction and Use. Many Detail Draw-

ings.

The Rating of Model Yachts. With Diagrams.

‘jal “tuart Compound Vertical Engine. Complete Detail Drawings.

Construction of Dug out Model Yachts. Detail Drawings.

Construction of 1 2H. P. Water Motor. Hlustrated.

Mr. Taylor’s Model Launch Engine. Illustrated

The Pitmaston-Moor=Green Model Railway. Illustrated.

Model Tank Locomotive. Detail Drawings.

Mr Willis’ Model Steam Launch Hlustrated.

Original Designs for 750-watt Direct Coupled High Speed Steam Engines.
and Dynamos with Fu!l Details.

A Four Inch Screw Cutting Lathe. Illustrated.

Detail Drawings for 80-watt Multipolar Dynamo.

Design for 100-watt Manchester Type Dynamo.

Model Electric Railway. ‘‘ Three Rail System,’’ with Diagrams.

Models made without a Lathe. Some Notes ona Large Static Machine.

The Castelli Coherer for Wireless Telegraphy. Illustrated.

A Cheap Petrol Carburetter for Small Gas Engines. Illustrated.

A Neat Model Electric Launch.

A Water-Regulating Resistance for a 1-in. to 2-in. Spark Coil. Diagrams.

A Carbon Electrolytic Interruptor Illustated.

With many pagesof Short Articles, Practical Letters, Notes, Questions and

Answers, Book Notices, Yachting Notes, New Tools, Supplies, &c.

286 pages, 311 Diagrams, 107 Half-Tones, 17 Full Single

Page and Two Double Page Scale Drawings.
Price B2.OO, Net.

Price.

Copies Mailed to any part of the World on Receipt of

SPON & CHAMBERLAIN

120-122 LIBERTY STREET NEW YORK CITY

THE MODELMAKER

175

WHAT'S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

Advertisements under this Head 5 cents a word minimum 10 words, letters or

figures count as words, compound words as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

Model Loco, Lionel Number
251, almost new, ten dollars;
Lionel curved track, ten cents,
straight track, three feet for a
quarter. Other supplies all for
O Gauge, J. A. Baker, Darien,
Conn.

Buy a Set of Birch 14” Pacific
Locomotive castings, 80 pieces
in the set, $30.00 complete with
full-size drawings. An ideal
Christmas present. Half-inch

scale Locomotive fittings,. such

as Air Pump, Headlight, also
Power Reverse Gear, Headlight
Turbo-Generator, realistic in ap-
pearance and to scale. Frank
Birch, General Delivery, High-
land Park, Michigan.

14" Scale Atlantic Locomotive,

steam, $100.00. Horizontal En-
gine, oscillating 1” bore 3”
stroke, $18.00. Enclosed Marine
engine, %” x %”, $15.00. Real
Bargains. John Nielson, 131
Elza Avenue, West, Royal Oak,
Mich.

Ship Model Fittings; Blocks
Deadeyes, Anchors, Capstans.
Send for circular. Fisher, 1002
Etowah Ave., Royal Oak, Mich.

Drummond Lathe M Type, 7”
swing, length of bed 2 ft. 8 in.,
brand new, a splendid precision

3 tool, suitable for all kinds of

modelwork, $155.00 f.o.b. New
York, Box 13, The Modelmaker.

FOR SALE

Blow Lamps, for model boilers
all sizes made to order. Model
Machine Shop, P. O. Box 5, Sta-
tion Y, New York, N. Y.

Designing — Working draw-
ings prepared; calculation of
strength of materials; for your
models or actual size; inven-
tor’s ideas developed. E. H.
Grafton, P. O. Box 75, North End
Station, Metroit, Mich.

Blue -Prints of Ships’ for
Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

A BC of The Steam Engine,
describing a high speed single
cylinder, double acting, hori-
zontal steam engine and auto-
matic governor, with large draw-
ings, price 35c. Spon, 120 Lib-
erty Street, New York.

WANTED

Modelmaker, November 1924,
May 1925, March 1926. Will
exchange copy of Mechanical
Age for any of these numbers
in good condition. Spon, 120
Liberty Street, New York.

WORK WANTED

Light Machine Work Wanted.
Let us estimate on your require-
ments. Miniature Railways (for-
merly Motor Generator Service),
Box 224, Dover, N. J.

176

THE MODELMAKER

WANTED

“Designing Engineer with 17
years’ experience in Automobile
industry desires financial sup-
port in formation of small com-
pany to manufacture steam and
internal: combustion models on
a production basis. Might con-
sider taking ‘an interest in an
established concern.” Box 9,
Modelmaker.

WANTED

Round Head Brass Machine
Screws, 0x80, Lengths, 14”, 3/16”,
4%”, under head. Modelmaker,
Box 7.

THE BATHE MFG. CO.

Model Engines,

Boilers, Boiler Fittings, Books,
Model Makers’ Supplies
Large Illustrated Catalogue 20c.
(refunded on first order)
Dept. S.— 5214 Woodland Ave.,

PHILADELPHIA, PA. |

WORK WANTED

I make patterns, small cast-
ings and working models. Model-
making is my trade. James Koch,
103 Summit Ave., Linwood, Pa.
a ee ee

a 1G) y q

MBs

SES i

]

“Ta!

I Get this a Portable
ieew Outfit of a thousand Uses

Needed by every modeimaker, me-
chanic and for machine shop. use.
It’s a precision instrument, consisting
of a ball-bearing coupling to connect
to any motor, 3 feet of flexible shaft-
ing and a ball-bearing chuck. Oper-
ates buffing wheels, reamers, metal -
drills, files, burrs and ee other
appliances. Uses a 4% H. P. motor,
obtainable at small cost.

Special Offer — Send Only $5.00
This outfit sells for $45. As a spe-—
cial offer from our factory to you,
send $5 with order and pay postman
$20, plus postage, on arrival. Satis:
faction gwaranteed or money back.

\'The S. S. White Dental Mfg. Co.
(Industrial Division)
a 152 W. 42nd St., New York

THE WADE BENCH LATHES

ve AN IDEAL XMAS GIFT

Capacity:

Screw Cutting —

4” dia, x 12” or 18’’ length.

TURNING — FACING — BORING — DRILLING

WINDING — THREAD CUTTING

No. 2 Back Geared 4” x 12”...
No. 9 “sé 6é

No. 1 Plain 47% X 12” ..cccccerccreesse $28.00
Now 1 4M KALB ec ececeenone voeee 30.00

+» $58.00
ft x 18”......$65. 00

Catalogue showing details and accessories on request.

THE GEROLD COMPANY (DEPT. M20)

120-122 LIBERTY STREET, NEW YORK, N. Y.

205 aS ee _” Si ae ad
ay see

NYO
vy~ \

TRE

MODELMAKER

FOR THOSE ph
INTERESTED INMAKING =,

WORKING MODELS.

Vol Ill, No. 12 DECEMBER, 1926 10 Cents

ss BG YLINDER DOUBLE-ACTING STEAM ENGINE
F MADE BY MR. W. H. BUCKLEY

>= &.

——-

178 THE MODELMAKER
:
. | ‘
SHIP MODELS—Coupon | MODEL MAKERS
Easy to Build and Sell in WOOD xa
Santa Maria.... .60 on SHIPS"
Spank Bence oe = on WAGONS '
Pirate eee 185 EAN on RAILROAD CARS
Viking ........ .45 Sy

_Interested in Teaching Positions
in Private Schools

OAL K's ence npeko
Or mail this Coupon and receive this

whole set, postpaid, for $1.50. ~ Write EDWARD YEOMANS,
M. W. Wade, Lawrenceville, Ill. Ojai, Calif.

For More Speed, Accuracy and Pleasure in Model Making

ack Ms GET NEW IDEA |

BATES MOTOR SAW
— 6 SAWS IN1— |
Does the work of band-saw, rip-saw,
cross-cut, miter, bevel and scroll-saw.
A wonder worker for the home shop.
Direct drive! Can’t stick! Cuts 2”
wood. Most amazing variety saw
ever invented. Does more, costs less!
Not a toy. Write for circular.,
BATES MOTORCRAFT CO, ee
Dept. K, 28 N. Clinton, Chicago, Ill. :

SCALE MODEL O GAUGE ELECTRIC
READING RWY. PACIFICS “120” Class
Built from the Railway’s Plans ~-

Prototype pulls the ‘‘Boardwalk Flyer,”
fastest train in the world.

Patented construc'ion makes possible

PRICE OF $9 POSTPATD COMPLETE,
WITH TENDER

Fittings include smoke device and many other ex-
clusive features. Most powerful commercial motor
for O gauge A. C. or D. C. Cuts show these
models in operation on our ‘‘Main Line” curves |

and switches.

EGOLF SCALE MODELS) "“\,79023D" SENNA

THE MODELMAKER
Published by SPON & CHAMBERLAIN

120-122 LIBERTY ST., NEW YORK, N. Y.
Editor—W. Edmunds Spon

Issued Every Month

Annual Subscription, $1.00

.Copyright by Spon & Chamberlain, December, 1926

Vol.

Ill, No. 12

“Entered as second-class matter Mar. 27, 1925, at the Post Office at
New York, N. Y., under the Act of March 3, 1879,”

OUR FOREWORD

In looking back over 1926, the
past year has been full of good
work done and promises for
greater successes in the future.

Without question Model Boats
_ have held the center of the stage
and of this class of models the
sailboat takes the first place.
Hundreds of these have been
built and sailed during the sea-
son.

Although a great many have

been of the simple fin type
sloop, some very fine sailing
models of sloops and schooner
yachts have been finished.
- The construction of models of
old-time Sailing Vessels takes
second place. This kind of work
appeals more to the matured
model enthusiast than to the
beginner, as it requires a greater
amount of knowledge, skill,
sustained perseverance and
money than would be required
in the construction of a simple
sailing boat. This group of en-
thusiasts is composed princi-
pally of professional men, such
as lawyers, doctors, engineers,
architects, dentists and business
men, who derive great pleasure
and recreation in the pursuit of
their hobby.

Model Power Boats are in a
class by themselves and _ al-
though a goodly number have
been constructed in the past
year. More might have been
built but for the expense en-
tailed and the greater amount
of mechanical skill required,
not only in the designing and
building, but in the operation
and maintenance.

In other classes of Models
the Locomotive takes the lead.
Quite a number of them have
been finished and run and many
more are in course of construc-
tion. The steam locomotive
seems to be more favored than
the electric locomotive.

There is a greater fascination
in the operation of a steam loco-
motive and string of cars over
a well-planned model railway
system than perhaps could be
obtained in the operation of any
other type of working model.
The electric loco is very popu-
lar. It does not require the
same care and attention as the
steam type.

In other classes may be men-
tioned Marine and Stationary
Steam Engines, Gasoline and
Aero Engines; the making of

- tings, houses, etc.

180

THE MODELMAKER

Ce ee he ee ROR a re ce
y “ ete Qf. . 7 £ - “

equipment and tools; the laying
out and equipment of the work-
shop; drafting of sets of scale

drawings, pattern-making, boiler
‘ making, blow torches, and many
other minor accessories.

The Societies all seem to have
had an active year and two new
ones have been added to the
list. The New York Society of
Model Engineers and the Akron
Association of Model Engineers,
both composed of groups of real
live wires, doing excellent work
in their own communities.

Many private individuals have
been heard from and in a num-
ber of cases little groups of en-
thusiasts are meeting in private
homes, some of which, in the
near future, will be organized
into regular societies.

The interest in Modelwork is
growing steadily and the true
value of miniature engineering
is coming to be more fully ap-
preciated.

Quite a few men of practical
and mechanical ability have en-
tered the field from a _ profes-
sional standpoint for the pur-

Mr. M. Bollés, 119 E. 19th St.,
New York, N. Y., is considering
the construction of a real scale
model of Donald McKay’s fa-
mous Clipper Ship “The Flying
Cloud,” considered the fastest
sailing ship of her day. He-has
blue prints of the lines and sail
- plans, but wishes to get ac-
curate data as to her deck fit-
He would be
glad to hear from any of our
readers who can supply him
with this information. He has
examined several models of this
ship, but in each case the deck
fittings and positions of the
deck houses varied. Can any-
_ one supply this data?

pose of supplying model cast- —
ings and parts, blueprints and ~
accessories based upon Ameri- —
can practice.

Several new books have been
added to. the 3
Modelmaking, The Ship Model —
Builder’s Assistant, by Charles ©
G. Davis; Ship Model Book, by —
George B. Douglas, and Ship —
Model Making, by Captain E. —
Armitage McCann. Our old
friend the Model Engineer and
its younger Companion, The
Model Railways News, have —
kept well up_ to ee high
standard.

Before closing we wish to
thank our many contributors for
their valuable assistance in sup-
plying information and illustra-
tions. To our friends “in the
trade for their advertising
patronage and to our large body
of subscribers for their support.

We wish you one and all a
Merry Christmas, and may the
New Year bring you all in-
creased enthusiasm and enjoy-
ment in the pursuit of your
favorite hobby.

Egolf Scale Models have sent
us the following table of “O”
gauge train speeds for insertion
in the Modelmaker, as they be-
lieve it will interest our Model ©
Railway enthusiasts:

Scale Actual Speed of.

Speed Model Trains
10-M. Px 18 ft. per sec.
20°: Mi SPi eee 36 ft. per sec.
30): Mo oe Sowa 55 ft. per sec.
40-M: Pict 73 ft. per sec.
50° MP AH Aaa 92 ft. per sec.
60-M;* Ps see 110 ft. per sec.

Other speeds in multiple.

It will be seen that in 4”
scale 110 ft. is 1 mile.

literature on

THE MODELMAKER

181

I enclose a photo of my ver-
tical Marine Engine. This was
made up specially for Mr. Harry

Jeffers of Saginaw, Mich., and
tested out under 125 lbs. air
pressure ran very smoothly, and
under a head of 50 lbs. of steam
it gave excellent results. This
engine is just right for a boat
of about 4 ft. long. It also runs

very steadily as a_ stationary
unit driving a small dynamo.

The following parts are of
cast iron: cylinder, top and bot-
tom covers, valve chest and
cover, standard, bedplate, fly-

wheel and eccentric sleeve.

Bronze parts: piston and valve
glands, crosshead connecting
rod, eccentric strap with rod,
main bearing brasses, slide valve
and valve rod guide.

182

THE MODELMAKER

Dimensions and Data
Cylinder, 1” bore x 1” stroke
Base, 4” long x 2” wide.
Height of engine, including

lubricator, 814”
Width of engine, including fly-
wheel, 3144”
Flywheel, 3144”, width of face,
34"
Flywheel, weight, finished, 1
b.
Single cylinder, double-acting,
with slide valve

Weight of engine complete, 5
lbs.

Approximate speed on 50 Ibs.
steam, 3000 R.P.M.

Would require a multitubular

boller;: 4" dia x14" high=for
stationary work
Rating, = 46° HPs on: 60--1bs:

steam pressure.

This engine under tests of
only 3 lbs. of steam ran very
smoothly at a fair speed, which
speaks well for the design and
materials of which it is made.

All of the castings could be
machined on a small lathe hav-
ing a 4” swing. I also have the
necessary castings to make it
into a horizontal engine.

Model Engineer, contents for
October 7, 14, 21 and 28: The
Placing of Guide Pulleys.
Making Three-Part Commuta-
tors.
Drill. Working Model Traction
Engines. Shop Shed and Road.
The Model Engineer Exhibition
of 1926. Locomotive Prototypes.
The Mandrels of Small Lathes.
A Model Vertical Steam En-
gine. Model Marine Notes.
Yachting Associations. Clock-
Making and the Small Lathe.
A 1%” Scale Australian Rail-
way. Making and Using Bows
and Arrows. Six-foot Model

A Useful Stand for Hand.

Steam Yacht Fitted with Com-
pound Engines. A Small Pump-
ing Plant for Real Work.
Double-Seale Volt Meters: their
Construction and Use. Queries
and Replies. Practical Replies.
Society Notes. The article de-
scribing the M. E. Exhibition,
London, is continued through
these four numbers.

Model Railway News, contents
for November: New Shunting
Engines for the “K” Lines. The
Battle of the Gauges. The Ash-
ville “O” Gauge Model Railway.
Canadian National Railways Oil
Electric Cars. Extensions to an
“O” Gauge Electric System.
The Layout of Country Stations.

Making “O” Gauge _ Corridor
Connections. A Simple Station
Indicator. “O” Gauge Level

Crossing Gates. Simple Lami-
nated Loco Springs. The Steam
Locomotive Under the Micro-
scope. Six Coupled Side Tank
Locomotive. Rail Mlotor Car.
Mr. G. D. Arthur’s “O” Gauge
Line, Showing His Model Ameri-

can Prairie Type 2—6—2 Loco- >

Clubs
For Sale and

motive. Our Mailbag.
and Societies.
Exchange, etc.

It gives us pleasure to state |
that Mr. Bathe’s trip to Bermuda
benefited him very much and
that his eyesight is greatly im-
proved from the change. We
hope that he will soon have fully -
recovered from his eye trouble.

A CORRECTION

In the issue for September of.
the Modelmaker on page 137 re-
ferring to Mr. Elmer Wall’s Gas
Engine we stated it was a half-
horse power. This is incorrect.
He writes it is one-fourth horse
power for steady pulling.

POSITION FOR CRANK-PINS
ON LOCOMOTIVE DRIVING
WHEELS.

Mr. F. D. Grimke gives the fol-
lowing solution, which is an an-
swer to an inquiry from one of
our readers. We believe it will
also prove of interest to others
who are building model locomo-

SIDE VIEW

FRONT VIEW

THE MODELMAKER 183

Drill holes for axle a. and
crank-pins c. Place wheels on
axle by hand and fasten wheel
A. A. on axle. ‘Now place the
axle on the Vee block so that
the wheels clear the surface
plate, Fig. 2. Take the try
square and turn the axle so that
the centre line A. A. is 90°, or

SIDE VJ/EW

Ligure peas

tives. -The finding of the right

3 position of the two crank-pins

on a pair of locomotive driving
wheels.

Take a wheel, which previ-
ously has been rough turned, a
scribe and a centre gauge and
place them as in Fig. 1, hold the
centre gauge firmly against the
flange of the wheel and scratch
a light center line A. A. Repeat
the process on the other wheel
atB=B;

perpendicular, to the plane of
the surface plate Fig. 2. Measure
the total height of wheel from
surface plate, Fig. 3, t1, subtract
from this the diameter of the
wheel, Fig. 3, #2, and that leaves
the remainder, dimension #8.
Halve the diameter #2 and add
to it dimension $3. This last fig-
ure is the height of the point of
the surface gauge scribe from
the surface plate,

184

THE MODELMAKER

Suppose the wheel diameter
t2—314"

The total height from surface
plate #1—=5”

Then
#12223 or 5”—34%4"=1%4"
2=3144"=138x44=15%"”

2.2 4

Then
#3442 or 15474156” =356"

2
33%” is the dimension D. Fig. 2.

Clamp axle so that it can’t
roll and see that A. A. is perpen-
dicular to the surface plate. Set
the scribe of the gauge to 33%”
above the surface plate. If the
B. B. crank is $0° to A. A. the
scratched line coincides with
the scratch made by the surface
gauge. If not, adjust the wheel
so that the two lines will coin-
cide B. B. and the scratch.
When they do, drive wheel home
with a wooden mallet. Mount
Wheels and axles in lathe and
take finishing cuts.

—————

Mr. Harry Cook, Secretary of
the San Francisco Model Power
Boat Club, 1806 Laguna Street,
San Francisco, writes us that
four of their members have new
boats under construction, and
that he will send us more par-
ticularg of their year’s activities
later.

When writing to advertisers
please mention the Modelmaker
and don’t forget a stamped and
addressed envelop for a prompt
reply.

A GERMAN RECIPE FOR THE
ELECTROLYTE OF DRY
CELLS

The following recipe was is-
sued during the war by the Ger-
man Government for the infor-
mation of manufacturers, who,
owing to wartime restriction,
found it difficult to obtain. the
materials usually employed in
making dry cells.

Take 140 grammes of pow-
dered sal-ammoniac, 40 grammes:
of zine chloride, 10 grammes of
ammonium ‘sulphate, mix to-
gether in a porcelain bowl with
10 grammes of thick refined
glycerine. Cover this mixture
in small quantities with distilled
water at a temperature of 40°
C., and: stir energetically until
the materials are dissolved into —
a concentrated solution. This
mixture is allowed to soak into
the binding material (which
may be either wheat or rye flour,
glass-wool, gelatine, starch, saw-
dust or Kieselguhr), and the
paste so formed is filled into the
cells, which are closed with a
parafined card top sealed with
wax. In the cover two small
glass tubes are provided for the
escape of such gases as are gen-
erated in the cell. In com-
pounding the electrolyte, cal-
cium acetate can be mixed to
advantage with equal parts of
the sal-ammoniac. The mixture
possesses excellent conductivity,
is hygroscopic and does not
crystallise or creep.—The Model
Engineer.

One of our subscribers would
like to know if any of our
readers could supply all the out-
side measurements of the stand-
ard rails from 85 lbs. per yard
to 127 lbs. per yard. If so, please
send the information to the —
Editor of the Modelmaker.

THE MODELMAKER

MODEL POWER BOAT
RECORDS

Compiled by
Frederic Drayton Grimke

(Continued from page 173)
ENGLISH RECORDS.

THUNDERBOLT.—12.47 M. P.
H. Displacement unknown. V
bottom, beam 9”. No further
hull data. Engine, aie
single-acting, 53/64” B. x %” S
No further engine data. Smithies
pouer, No further data avail-
able.

EDYTHE IV.—10.02 M. P. H.
Displacement unknown. O. A.
length 41%”, beam 101%”. V
bottom. No further hull data.
Engine, 2-cylinder single-acting,
me” B. x %” S. Scott type boiler.
No further data available.

“RAINBOW.—8.22 M. P. H.
O. A. length 42”, beam 8%”. V
bottom. Further hull data un-
known. Engine, 2-cylinder sin-
gle-acting, %” B. x %” S. Fur-

ther engine data unknown.
Scott type boiler. Further data
unknown.

PEP IlJ.—Speed not recorded.
Displacement unknown. O. A.
length 42”, beam 9”. V bottom.
Further hull data unknown.
Engine, 2-cylinder single-acting,
7" B. x %” S. Further engine
data unknown. Smithies boiler.
Further data unknown.

BLUEBELL.—Speed not re-
corded. Displacement unknown.
O. A. length 42”, beam 9”. V
bottom. Further hull data un-
known. Engine, 2-cylinder sin-
gle acting, %” B. x 4%” S. Fur-
ther engine data unknown. Cen-
_ ter flue boiler. Further data

- unknown.

185

SPORT IlI.—Speed not re-
corded. Displacement unknown.
O. A. length 42”, beam 9”, V
bottom. Further hull data un-
known. Engine, 2-cylinder sin-
gle-acting, %” B. x %” S. Fur-
ther engine data unknown.
Scott type boiler. Further data
unknown.

HAWK.—17 M. P. H. Dis-
placement unknown. Ora
length 44”, beam 12”. Metal
hull, runabout lines. Further
hull data unknown. Engine,
slide valve, 2-cylinder. Water
tube boiler. Further data un-
known.

BLUEBIRD II.—16.2 M. P. H.
Displacement unknown. O. A.
length 44”, beam 11”. Hull
made of planked mahogany.
Further hull data unknown.
Engine, poppet valve, 2-cylinder,
single-acting, 13/16” B. x %” S.
Water tube boiler, 20 tubes.
Blow torch. Further data un-
known.

PUG.—15 M. P. H. Displace-
ment unknown. O. A. length 38”,
beam 11”. Hull, planked ma-
hogany. Further hull data un-
known. Engine, poppet valve,
8-cylinder single-acting, 5%” B.

x %” S. Boiler U-shaped water
he 36 dia., with steam drum.
Further data unknown.

GREYHOUND.—Speed not re-
corded.. Displacement unknown.

O. A. length 46”, beam 12”.
Hull, runabout lines, sheet
metal, Engine, slide valve, sin-

gle-cylinder, doubt-acting, %4” B.
x %” §. Water tube boiler.
Further data unknown.

FIREFLY.—Speed not re-
corded. Displacement unknown.
O. A. length 46”, beam 12”. Hull,
runabout lines, sheet metal. En-
gine, slide valve, single-cylinder,
double acting, 4%” B. x %” S
Water tube boiler. Further data
unknown.

186

BLUEBIRD I.— Displacement
type hull. No further data
available.

MARGUERITE.—Hypdroplane
type hull. No further data
available.

AMERICAN .RECORDS

ELMIRA.—30 M. P. H. (Never
been officially clocked.)
placement 14 lbs. O. A. length,
3934”. Hydroplane, single step,
mahogany and aluminum. Fur-
ther hull data unknown. En-
gine, 2-cylinder' single-acting,
%” B. Further engine data un-

known. Water pump, 4” B. x
eet 9/16" UrS5 7 RAO 1D pa Ou
pump, 4” B x &"—¥Yy" S§.,

Ratio 100:1.
GADFLY.—22 M. P. H. Dis-

placement unknown. LO Rowse
length, 40”, beam, 10”. Dis-
placement type hull, planked
mahogany. WBHngine, 2-cylinder,

27/32” B. x %” S. Further en-
gine data unknown. Water tube
boiler with 20 tubes. Further
data unknown.

TORTOISE I.—7 M. P. H. Dis-
placement 6 lbs. O. A. length
24”, beam 5”. Hydroplane, one
step, wood and metal. Engine
poppet valve, 2-cylinder, single-
aeting uniflow, 7/16” B. x 1%” S.
Flash type boiler. 6’—0”. 3/16”
and 2’—0” %” tubing. Blow
torch, single nozzle, 2” dia. x 4”
long. Gas tank 15 to 20 lbs. pres.
Propeller 134” dia., 6” increasing
pitch, 3 blades. Water pump
7/16” B. x adjustable stroke.
Ratio. 22>

SUNNY JIM.—12 M. P. H. Dis-
placement unknown. ate b
length 393”. Hull data unknown.
Engine piston valve, 2-cylinder
opposed. 5” B. x %” S. Scott

Dis-—

THE MODELMAKER

type boiler. 12 34” tubes, 314”
x 10”. -Blow torch and propeller
data not known. Water pump
i _B, X= 36"-S.> Ratiowa en
pump 3/16” B. x 5/16” S. Ratio
66:1. .

XXXXXX.—21 M. P. H. Dis-
placement 6% lbs. O. A. length
393g”. Further hull data un-
known. Engine, rebuilt simplex
apr. 21/21l, Flash boiler, further
data unknown. Torch data un-
known. Propeller, 3” dia., in-
creasing pitch, 2 blades. Pump
data unknown. Ratio 3:1. M. E.
Volume 45, page 30.

DAISY.—21 M. P. H. Displace-
ment 15% lbs. O. A. length
393g”. Hydroplane, single step
type hull, wood, beam 10”, depth
2”, Engine, poppet Valve, 2-cylin-
der single-acting, 4”x%”. Flash
type boiler, 28’—0”, %4” tubing.
Blow torch, single burner, 2”
nozzle, 2144” dia. x 6” long. Gas
tank 80 Ibs. pres. Propeller
2%" dia., 94” pitch, 2 blades.
Pump %” B. x 5%” S. Ratio 4:1.

BAGIETTO XX.—16.3 M. P. H.
Displacement 13 lbs. 3 oz. O. A.
length 39°34”. Hydroplane, one
step, type hull, mahogany; beam
10”, depth 1%”. Engine, piston
valve, 2-cylinder uniflow type,
1," B, = 33-94" So aes
boiler, 20’—0” tubing, size un-
known. Blow torch, nozzle 2”
dia. x 6” long. Gas tank 80 lbs.
pres. Propeller 3 5/16” dia., 10”
pitch, 2 blades. Water pump
Ye By eR Var: 1629 eo
5:1. Oil pump 3/16” B. x var.
to %” S. Ratio 100:1.

T. N. T.—Speed not recorded.
Displacement unknown. O. A.
length 36”, beam 84”. V_ bot-
tom. Further hull data un-
known. Engine, one-cylinder
double-acting, 13/16” B, x %” S.
Smithies type boiler. Further
data unknown.

THE MODELMAKER

187

For N. Y. 8. M. E. Boats see
Modelmaker for October, 1926.

For records of Bluebird II,

Pug, Gadfly, Hawk, Greyhound,
Firefly, Bluebird I, and Mar-
guerite, see Modelmaker . for
September, 1924.

Cannot vouch for the remain-
‘der of the timing of American
Model Power Boats.

All English Power Boats were
officially timed.

SUNNY JIM.—Particulars of
the power plant will be found in
the Model Engineer as follows:
Engines, Volume 54, page 423;
Boilers, Volume 52, page 154;
Pumps and Torch, Volume 53,
page 109. \

All the data relating to the
English Power Boats was found
in the Model Engineer.

If any of our readers can sup-

ply us with data lacking in the,

above records, or data regarding
other Model Power Boats not
mentioned, we shall be very
glad to insert the information
thus supplied in a future issue
of the Modelmaker, giving the
author full credit for the same.

———

“QO” GAUGE TRACK, CURVES
AND SWITCHES

“Main Line” writes: We are
bringing out curves and switches
for the man who has a quantity
of O-gauge track, yet wishes to
operate scale models over it.
By this means the Model en-
thusiast can keep his toy O-

gauge electric straight track,
simply using our curves and
switches, which are _ inter-
changeable with toy track.

Our switches are constructed

according to proper railway
practice; that is, they are of
the true “knife” pattern, the

movement being through the
spring of the blades. A regular
railway type frog is fitted. The
third rails are so arranged that
with our special wide shoe it is
impossible to stall or short-cir-
cuit an engine at any point on
them (which cannot be said of
the toy variety of switch).

Our track resembles regular
toy tinplate track, but has three
wooden ties per section, which
form the base for supporting
the third rail. In addition there
are six tin ties. The third rail
is solid copper, and joins by a
simple spring action.

We are recommending that
customers installing the track
on a permanent foundation, such
as shelving, sprinkle chicken grit
along it for “ballast.” There is
one grade of chicken grit (€ob-
tainable at pet shops) that
closely resembles regular rock
ballast when correctly sprinkled
along the track. In this way
the rather unconventional ties
of tinplate track can be con-
cealed, and a roadbed approxi-
mating conventional practice
obtained.

We are supplying switches
with either a hand lever, or a
right-angle crank for working
from signal boxes.

An accurately ruled sheet or
two of cross section paper is
often found very useful when
anyone wants to make a quick
sketch of a piece of machinery
or some castings, or other de-
vice. The Handy Sketching
Book is just the thing to carry
in your portfolio for such odd
sketches, as it is accurately
ruled 8 squares to the inch,
printed in blue ink on both sides »
of the payer, size of page, 5”x8”.

188

THE MODELMAKER

LIST OF
CLUBS AND SOCIETIES

Akron Association of Model
Engineers, Sec., Mr. R. W.
Jacobs, 115 North 16th St., Ken-
more, Ohio.

Boston Society. of Model En-
gineers, Mr. J. L. Brackett, 13
Charles Street, Wakefield, Mass.

Boys’ Steam Locomotive Club,
Mr. Bill Neisel, 56 Tennis Place,
Forrest Hills, L. I.

Canadian Model Mncinoorine
Club, The Sec., 122 Pacific, To-
ronto, Ontario, Canada.

Canadian Model Engineering
Club, Montreal Branch, Mr. F.
L. Lewis, 139 Dobie Avenue,
Mount Royal, Montreal, P. Q.,
Canada.

Central Park Model Yacht
Club, Mr. H. Griffith, 609 West
147th Street, New York, N. Y.

Chicago Society of Model En-
gineer, Sec., Mr. S. C. Swanson,
7826 Coles Ave., Chicago, III.

Detroit Model Yacht Club, Mr.
J. H. Hinchman, Dept. of Recre-
ation, 504 Elmwood Street, De-
troit, Mich.

Elveron Speed Boat Club, 13
Bentley Avenue, Jersey City,
i a Be

Model Boat Club, Washington,
DG.

Model Sailing Yacht Club,
Providence, R. I.

Montclair Model Engineers’
Club, Sec., Mr. J. B. Rettallack,
65 Dunnell Road, Maplewood,
N. J.

Prospect Park Model Yacht
Club.

New York Society of Model
Engineers, Sec.,
ger, 15 Moore Street, New York,
NYS ;

Any reliable

Mr. A. A. Sin--

San Francisco Model Power
Boat Club, Sec., Mr. Harry Cook,
1806 pater St., San Francisco,
Calif.

Saint John Model Boat Club,
Mr. Harry Ervine, Telegraph
and Times Office, Canterbury
Street, St. John, N. B., Canada.

Toledo Model Yacht Club, Mr.
G. A. Heinle, c/o Meilink Steel
Safe Co., Toledo, Ohio.

We would like to receive the.
names and addresses of the
Secretaries of any of the above
clubs where they are lacking,
also any corrections or altera-
tions to the above list as well
as the names with the secre-
taries and their addresses of
any new clubs or older organiza-
tions that we have not listed.
information our
readers can send us will be very
much appreciated, as we wish
to make this list complete and
up-to-date for the benefit of all
concerned.

Mr. Isaac 7762
Windsor - Street,
couver, B. C., Canada, writes us
that he has been getting to-
gether a number of gentlemen
interested in model engineering,
and they are planning to or-
ganize a Model Engineers So-
ciety. Any of our readers resid-
ing within a reasonable distance
of this gentleman should get in
touch with. him, either person-
ally or by correspondence, and
get all the particulars about this
new Society. We hope Mr. —
Purington will have a good many
supporters in this good work.

Purington,

If there is any information —
you wish to get, write to the
Editor.

South Van- ©

THE MODELMAKER

2-CYLINDER DOUBLE ACTING
HORIZONTAL STEAM
ENGINE

This little Engine was built
by our old friend, Mr. W. H.
Buckley of Guysborough, N. S.
He is quite a genius in making
working models out of odds and
ends from his scrap box. The
design is his own.

The top of wooden base is
10’ by 434”.

The two cylinders are pieces
of smooth brass tube %” bore
with a stroke of 1%”. The
cylinder heads are pieces of
sheet brass fastened on with
small screws and made steam
tight. The two cyinders are se-
curely attached to a thick piece
of brass. Four pieces of strip
brass are fastened to the cylin-
ders, the ends of which are bend
at right angles to make firm
supports, there are screwed to
the wooden base. T'wo pieces
of small brass tube, with stuf-
fing boxes attached, are secured
to the cylinders for the piston
rods to work in.

The slide valve ports are built
up. The steam chests are dug
out of two brass bolts, with
pieces of small brass tubes in-
serted at each end of each cylin-
der for the valve rods to work
in. The piston guide rods are
supported by two pillow blocks.
The crankshaft-is made from a
stiff piece of iron wire carefully
bent to give the proper throw.

The flywheel is 4%” in dia.
of cast zinc and lead, with iron
band bent around the outside
of the rim.

The supports for the flywheel
are each built up from two
pieces of thick brass and fitted
with lubricators.

The Engine has been under
steam running a small dvnamo

189

and worked very well indeed.
In the November 1924 issue of
the Modemaker is a description
of a Model Paddle Wheel En-
gine built by Mr. Buckley.

The Gerold Co. have taken up
the sole selling control of the
following Light Machinery suit-
able for the Modelmaker’s
Workshop. Universal Ball Bear-
ing Bench Circular Saw table
14”x18” taking saws up to 9”
dia.; also a larger size with a
table 18”x22” taking saws up to
12” dia., operated by A.C. elec-
tric motor from house lighting
circuit. Foot, or Power, driven
Scroll Saw for almost any kind
of work; just the thing for
model boat hull shaping out. An
ingenious new combination tool

for grinding, buffing, polishing
and drilling. It consists of a
double-ended spindle _ electric

motor with attachments to ac-
complish the variety of work
mentioned above; also base
stand, wheel guards and tool
rests. The advantage to the
Modelmaker is that he can pur-
chase the motor and any attach-
ment to suit his special require-
ment.

When writing to us about your
change of address we would ask
that you kindly mention not only
your new address, but your old
address, also state which maga-
zines you subscribe for. Our
subscription cards and stencils
are all classified under states
alphabetically. Compliance with
the above request will simplify
our work in looking up subscrip-
tion cards.

The three bound volumes of
the Modelmaker contain many
articles on American Model-
making. They would make ex-
cellent Xmas gifts to those in-
terested in this work.

190

THE MODELMAKER

MODEL ENGINEER,
VOL. 29

Model Enginer, principal con-
tents of Volume 29. Model
Yacht Minerva. Grinding, Pol-
ishing and Lacquering for Model
Engineers. Clock Repairing.
Tesla Coils. Model Power Boat
Building. Locomotive Notes.
Model Beam Engine. The De-
sign of Small Dynamos. Ex-
hibits from the Model Engineer
Exhibition. A Simple Method
of Projecting Sun Dials. An
Automatic Wind Electric Plant.
A Model Railway System. N.
E. R. %” Scale Locomotive. File
Handles and Holders. Auto-
matic Expansion Gear for Model
Engines. Electric Welding.
Marine Models. Forging Smal}
Tongs. An Under Type Steam
Engine with Boiler. How to
Build a Model Hydro Aeroplane.
Grinding Lawn Mower Cutters
in the Lathe. Model Yacht
Racing. The Utilization of Our
Natural Sources of Energy.
Hints on Painting Model Boats.
Southport Miniature Railway,
15” Gauge. A Scale Model Rail-
road Turn Table. Construction
of Bellows for Blow Torch.
Some Attachments for a Small
Planer. 2—6—0 Caledonian Rail-
way Locomotive. Small Gyro-
scopic Mono Railways. Model
of G. W. R. Cross Channel Pas-

senger Steamer. Ornamental
Glass Grinding. Backing off
Milling Cutters in the Lathe.

The Construction of Mr. W. J.
Daniels’ Half-Rater “Onward.”
15” Gauge 4—6—2 Locomotive
“Gigantic” Pacific Type. <A 5-
cylinder Rotary Petrol Engine.

The Length of Lathe Driving
Belts. A Model Beam Engine.
Design for Weight-Driven Petrol
Air Gas Plant. A 3” Center Back
Gear Lathe. An Automatic
Electric Striking and Chiming
Gear. Model of Steamship
“Great Eastern.” The Propor-
tions of a Pantograph. Motor- |
cycle Notes. Methods of Sup-
porting Line-Shafting. A Cheap
Grinder for the Lathe. 4%” Scale
Tank Locomotive. Microscope
Accessories—Lamps. The Di-
vining Rod—Finding Water. The
Measurement of H. P. and Brake
H. P. Vise, Clamps, and Fittings.
Speed Boat Designs. Turning
Cranks on the Lathe. Torpedo
Destroyer “Petrol.” The “A. Mi
R.” Model Railway. A Simple
Type of Ignition for Small Sta-

tionary Petrol Engines. <A 15”
Gauge . Atlantic Locomotive.
Some New Gyrostats. Super-

heated Tank Locomotive 4—6—2:
A Steam-Driven Monoplane.
Model Atlantic Type Locomo-
tive. Expanding Locomotive
Boiler Tubes. New Type of
Tank Engine with 3 cylinders.
Standard Locomotive Stoker.
Model Horizontal Engine and
Boiler. A complete Electric
Lighting Plant with half H. P.
Gasolene Engine. A Model Motor
Car. Gyroscopic Stability. A
Model Tramp Steamer. A 1144"x
14%” Single Acting Steam En-
gine. An 8-ft. Wind Mill. Breaks
for Spark Coil. The Gordon
Model Railway. Taper Turning
Attachment for Engine Lathe.
Articles on Wireless. Many
Miscellaneous Subjects. Society
and Club Doings. Book Re-
views. News of the Trade. Title
Page and Index. 628 pages.
Hundreds of illus.

Send us a stamped and ad-
dressed envelope for list of Am.
Model Supply houses.

THE MODELMAKER

MODEL BOILERS

To the Editor, “Modelmaker.”

Dear Sir: Since this country
has taken up and is progressing
in Modelmaking and in which
all of us wish: to cooperate in
brotherly fashion, I take leave
to append my views briefly on
the above subject and as fol-
lows:

We as a body are not merely
Model enthusiasts, but have
some claim to science, and with
this in mind, how can we con-
scientiously condone to brass
boilers and steel stays, or even
steel boilers, bearing in mind
that a Model boiler spends 90%
of its life lying idle and there-
fore supremely prone to corre-
sion on the inside, no matter
how carefully treated.

There is only one safe and
sound material for Model boilers,
namely copper, and the trum-
pery plus cost of this material
is insignificant in these little
boilers, copper is ductile, easy
to manipulate, and once made
into shape is practically immune
from deteriorations in a per-
son’s lifetime.

Brass tubing, on the other
hand, has been known to be
laminated and boilers made of
this material are a questionable
proposition.

To make a boiler to sell and
to make one for real safe and
serviceable use are two different
things; but we as a body should
not lay ourselves open to criti-
cism by departing from scien-
tific facts embraced in engin-
eering to date—but rather fol-
low strictly upon _ scientific
lines and show people that we
aim at something higher than
mere “toy modellers.”

191

To the Trade.

In my opinion Modelmaking
in the U. S. is only in its in-
fancy. European Modelmaking
firms, despite bad times, have
built up enormous businesses.
The Trade must cooperate with
the buyer and not be too eager
for quick profits—that will come
in due time.

Yours cordially,

P. W. WILSON,
1222 West Clifton Blvd.,
Lakewood, Ohio.

BOOK REVIEWS

Workshop Operations and Lay-
outs for Economic Engineering
Production. By Philip Gates.
200 pages; ill.; cloth, $2.50.

This book is very easy read-
ing, and the principles are clear-
ly illustrated. To facilitate the
use of this book it is divided
into twelve chapters. These
chapters illustrate just how
economic operations can be per-
formed on automatic machines,
drilling and tapping machines,
milling machines and milling op-
erations, press work, rechucking
automatic work, turret work,
continuous vs. station milling,
multiple drilling and wmulti-
spindle work, cylindrical and
surface grinding, broaching and
broaches vs. reamers. The pro-
duction manager and engineer
will also find in this book what
can and what can not be expect-
ed of machine tools. Also there
will be found guidance in deter-
mining the necessary quality,
materials, modifications neces-
sary to facilitate machine shop
production, and all the data re-
quired for keeping track of
costs, time sheets and records
of various sorts.

192

K. H. B.—yYes, there is con:
siderable difference between
Wood Alcohol (pyroligneous
acid, Methylated Spirits, ag it is
known abroad) and Ethyl alco-
hol (or white spirit), which is
a distillate from grain, potatoes,
molasses, sugar cane _ refuse,
fruits and other farm produce.
A very extensive and expensive
plant is required for the manu-
facture of Wood Alcohol, while
Ethyl Alcohol can be made in
simple apparatus. Both will
burn equally well under the
boiler of your locomotive or
steam engine, or as fuel to run
an internal combustion engine.

Immense quantities of Ethyl
Aleohol are used in the Indus-
tries yearly; as a solvent for
most of the drugs used in medi-
cine and other medical prepara-
tions; with a suitable denaturant

added in the manufacture of
rubber goods, fine varnishes,
paints, lacquers, textile indus-

tries, tobacco manufacture, and
many other uses. It is also be-
ing used abroad for motor fuel.
On some of the Sugar Planta-
tions in Cuba it is being made
from the crushed cane refuse at
about 4 cents a gallon, and is
used in the small gasoline loco-
motives for hauling the cars of
sugar cane.

One of the largest distilleries
in Illinois made the White Spirit
from grain at a cost of less
than 5 cents per gallon and the
refuse mash was dried and com-
pressed into cakes for winter
food for cattle. Wrights book
on the Manufacture of Industrial
Alcohol fully describes and il-
lustrates the various processes.

With the ever-increasing de-
mand for gas engine fuel and
the present high price for gaso-
line there should be a big field
for white spirit for power pur-

BM et ae = ide Wd Ooo eat

eye
‘

THE MODELMAKER

poses. It can safely stand a
much greater compression than
gasoline as its flash point is
about 135°F, while the gasoline
flash point is between 68-75°F,
according to its quality.

White Spirit gives a beautiful
white light (very actinic) when
burned in a suitable table lamp
having a Wellsback mantle.

It can also be used for cook-
ing. It is a much less hazardous
fire risk and safer to transport
than gasoline. As it is manu-
factured from produce that can
be continuously produced in
any part of the world in unlim-
ited quantities there is never
any likelihood of there being a
shortage of raw materials from
which it is made. On the other
hand, the demand for gasoline
in the last few months has been
considerably greater than the
amount of oil obtained from the
wells during that period, and in
a number of cases many wells
have given out.

Mr. A. Willard, Chicago So-
ciety of Model Engineers, writes
that the Society will hold. their.
Annual Exhibition of Models at
846 Rush Street, Chicago, IIL,
on December the ist to the
4th inclusive. We hope that all
our Chicago friends will make
a point of attending one of these
days and getting acquainted
with the boys. The members
of the C. S. M. E. have produced
some fine specimens of model
work, so we believe a visit to
the coming exhibition will well
repay those that make the effort.

When writing for information —
please enclose stamped and ad-
dressed envelope.

THE MODELMAKER 193
TWO CANADIAN MODEL
POWER BOATS
BUILT BY MR. RALPH SKINNER
I enclose photos of two Model torch aft of the boiler. I have

Power Boats I have built. Hach

of these models took six months

to construct, including’ the
power plants. The hulls are
both of the hydroplane type.
One has a straight stem with
a sharp bow, the other a punt
bow. In both cases I have placed
the engines for’ard and the blow

had a good deal of enjoyment
in their construction (the two

propellers were the only parts
I did not make) and give the
following particulars and data
in the hope that it will prove of
value to some other reader who
is planning the construction of
a Model Power Boat.

194 THE MODELMAKER

No. 1—Minnie Mary

Length on deck, 36”

Beam, midship, 8”

Length from bow to step, 17”

Length from step to rudder
post, 49%

Hull, built up of pine, 3/16”
thick

Engine, 2-cylinder, single-act-
ing, slide valve

Cylinder, %4” bore x %4” stroke

Displacement lubricator

Steam gauge on steam line

Flash steam boiler, 18’—0”
44” copper tubing

Length of boiler, 10”

Width of boiler, 354”

Height of boiler, 354”

Steam pressure, about 40 lbs.

Fired with blow torch

Feed water pump, %” dia.
runs off of tail shaft with 4 to
1 gears

Capacity of fuel tank, 1 pint

Boat will run about 25 minutes
on one charging.

Stern bearings, brass

Size of propeller, 3”

Size of rudder, 2”x2”, Russian
iron.

No. 2—Mary Minnie rs

Length on deck, 37”

Length W. L., 3814”

Beam midships, 84%”

Length from bow to step, 19”

Length from step to stern,
2014"

Hull built up of pine 3/16”
thick

Engine, 2-cylinder, single act-
ing, piston valve

Crankshaft, built up, 3/16” dia.

Cylinders. 11/16” bore x. %”
stroke

Cylinders of steel

Pistons, aluminum,
rings

Steam -hggt, cast iron

brass

Tobin bronze valve

Engine has aluminum base

Displacement lubricator

Boiler, water tube, 1/16” cop-
per

Boiler tubes, 4’—2” 14” cop-
per tube, brazed. on bottom

Stay rod through center of.
boiler m

Boiler, fittings, safety valve,
throttle

Steam gauge

Filling plug

Length of boiler, 914”

Width of boiler, 314” dia.

Width of boiler casing, 4”

Height of boiler shell, 54%”

Fired with blow torch

Boiler capacity, 1 pint

Fuel tank capacity, 1 pint

Steam pressure, 50 lbs.

Boat will run 30 minutes on
one charging

Propeller, 3” dia., 2-blade

Size of rudder, 2”x2”, Russian
tron

Both of these boats steam
well, but I have not made any —
records of their speeds.

Mr. Thomas Bray informs us
he has-been fully occupied for
the last few weeks with the con-
struction of a %” Seale P. R. R.
K. 4s 2144” Gauge Steam Locomo-
tive, with Walschaert valve
gear; also a 44” scale B. & O.
Mountain Type 4—8—2 Steam
Locomotive 2144” gauge, with the
Baker Valve Gear.

Mr. Jesse Menendez, 239 E.
13th Street, New York, and a
few other friends, who have all
been students in the Baron de
Hirsch Trade School, are work-
ing up a little Modelmakers’
Club. He would be glad to hear
from any readers in his district
interested in this work.

QUESTION BOX

Please address replies to Edi-
tor of the Modelmaker.

_ F. W. §.—Would like to know
: where he can get plans for the
construction of historic ships

for ornamental purposes.

- H. S:—Would like to know
Where he can get small com-
pressed air engines for model
aeroplanes.

| W.L. M—I am an instructor
in High School teaching Elec:
~tricity and would like to hear
from some firm which can sup-
ply motor stampings, parts, etc.,
in quantity lots. Would also
like to get a drawing to detail
of a 280 Mogul Locomotive with
Walschaert Valve gear and pis-
ton valve for an amusement
park.

Mr. J. W. C. Corbusier, Hud-
son, Ohio, has all the lines and
sail plans for a model of the
Great Republic, but he lacks the
_plans and details of deck-houses,
-boats and other deck fittings. If
any of our readers can supply
the information required, it will
be very much appreciated.

The Editor, the Modelmaker.

Dear Sir: In reply to Mr. B.
Read, Jr., of 3230 Euclid Heights
Blvd., Cleveland Heights, Ohio,
I am enclosing with this letter
a record of Model Power Boats,
both American and English.

When finished, please return
record to me, as it is taken from
my own personal files.

Trusting that this answers
Mr. Read, Jr., I beg to remain,

F. D. GRIMKE,
987 Madison Ave.,
New York, N. Y.

When writing to advertisers
please mention The Modelmaker.

Pane

THE MODELMAKER

195

FOR SALE

The Model Engineer, Vol. 29,
in numbers, price $2.50 post paid.
Spon, 120 Liberty St., New York.

PAINT AND COLOR MIXING
By A. S. Jennings

eA practical handbook for
painters, decorators, paint manu-
facturers, artists, and painr
mixers.

Containing over 300 colored
samples of oil and water paints
and water colors of various
colors, and upwards of 1,500 re-
ceipts for color mixtures.

Extract from Preface

In preparing a new edition or
this book, many important ad-
ditions have been made, includ-
ing a chapter on the “Propor-
tions of Pigments and Thinners
in Paints’—a subject of great
interest both to the painter and
paint manufacturer. There are
also new chapters,’ Hints on
Choosing Color Harmonies,” “An
Exhaustive List of White, Black
and Colored Pigments with
Their Properties, Principal Uses
and Alternative Names” and
“Color Glazing.”

The book has been carefully
revised throughout and the text
has been brought up-to-date by
the inclusion of pigments, colors
and methods not well known
when the earlier editions were
published.

There are also included de-
scriptions and illustrations of
most of the latest types of ma-
chines used in paint grinding
and paint mixing.

Seventh edition, revised and
considerably enlarged. 341 pages,
illustrated, cloth, size 7°4x5%4
in., $5.00.

SPON & CHAMBERLAIN
120 Liberty St., New York

THE MODELMAKER
WHAT’S IN YOUR GARRET?

SALE—EXCHANGE—WANTED

EVERYTHING HAS A VALUE—SOME OTHER FELLOW
WANTS IT IF YOU DO NOT

196

Advertisements under this Head 5 cents a word minimum 10 words, letters or

figures count as words, compound swords as separate words.

accompany copy.

Remittance to

We reserve the right to refuse any or all advertisements.

FOR SALE

Blow Lamps, for model boilers
all sizes made to order. Model
Machine Shop, P. O. Box 5, Sta-
tion Y, New York, N. Y.

Blue Prints of Ships for
Modelmakers, send for circular,
G. B. Douglas, 165 Summit Ave.,
Upper Montclair, N. J.

Gears and Model Supplies of
every description. Catalog 5
cents. Experimenters Supply
House, Box 10, Station Y, New
York City.

Ship Model Fittings; Blocks
Deadeyes, Anchors, Capstans.
Send for circular. Fisher, 1002

Etowah Ave., Royal Oak, Mich.

Wade #2 Lathe.
equipment, except chucks, A-1
condition. Call or write, F. L.
Homan, 143 Quincy Street,
Brooklyn, N. Y.

Drummond Lathe M Type, 7”
swing, length of bed 2 ft. 8 in.,
brand new, a splendid precision
tool, suitable for all kinds of
modelwork, $155.00 f.o.b. New
York, Box 13, The Modelmaker.

Complete

FOR SALE

4" Scale Pacific Locomotive
Castings with drawings, $30.00,
most complete on the market;
an Atlantic or Mountain Type
can be built from the same set.
Head Lights, Air Pumps. Alco
Power Reverse. Turbo-Genera-
tors, all in %” scale. Sudden
Service. State your wants. List
and Photo, 5 cents. Frank
Birch, General Delivery, High-
land Park, Mich.

Constructional Blueprints. 24”
Racing Yacht, $2.25. 36” two-
mast Schooner, 3 sheets, $5.00.
Above are fine sailing models.
Perry’s Flagship, the brig Ni-.
agara, 3 sheets, $5.00. . This
square-rigged model is very easy
to build. These blueprints show
full-size details of the hull,
spars, rigging and templets for
carving the hull, thus eliminat-
ing all further drawing work.
A. R. Ferris, 284 East 151ist St.,
Cleveland, Ohio.

Castings for Model Engineers,
Over-type engine and _ boiler,
1912 design. List free. John
Luby, 447 Coggeshall St., New
Bedford, Mass. 7

WORK WANTED
Light Machine Work Wanted
Let us estimate on your require
ments. Miniature Railways (fot
merly Motor Generator Service; ;
Box 224, Dover. N. J.

ote oe

FOR SALE

_ I—H. P 2-cylinder Steam En-
gine, automatic governor, Wes-
tinghouse type, fine model, make
‘offer, R. Rearick, R. F. D. 58,
‘Sharon, Pa.

_ The Gas Engine in Principle
and Practice, A. H. Goldingham.
Contents: Introductory; various
type of engines; valves and
‘valve motions; governors, igni-
tors, self-starters, and other de-
‘tails; testing; various oils, fuels
‘and gasses; gas producers, in-
stallation; operation and correc-
tions. A very practical well il-
lustrated handbook, 200 pages,
eo published price $1.50; our
price while they last, 75 cents.
‘Spon, 120 Liberty. Street,
‘York.

5
e-
ed

New

Diagram of Corliss Engine. A
Longitudinal section of the Cor-
liss Engine Cylinder, showing
relative positions of the Piston,
Steam Valves, Exhaust Valves
and Wrist Plates when cut-off
takes place at % stroke for each
15 degrees of the circle. With
full particulars. Reach-rods and
Rock Shafts. The Circle ex-
plained. Wrist-plates and Ec-
centrics. Explanation of Fig-
ures, ete. Size of sheet 13 in. x
19 in., price 35 cents.

THE MODELMAKER

197

FOR SALE
Model Steam Traction Engine.
Cylinder 2 inch bore, 214 inch
stroke, Steel boiler 2 ft. 6 inches
long, 7 inch diameter, barrel, 80
lbs. steam pressure, with Pump,

and all fittings, 200 dollars.
Edward Jones, Box 55, Cardiff,
Maryland.

FOR SALE
Rough Sketching; The Han-
dy Sketching Book, consisting
of sectional ruled paper, plain
eight squares to the inch, with
some useful tables, size 5 x 8,

bound in limp card to fit the
pocket, price $.385, Spon, 120
Liberty Street, New York.

‘BLUE PRINTS and
CASTINGS

OF THE

LORD BALTIMORE

The Largest Passenger tly in the
World. 3%” or %” scale.

W. A. FALMER
Specializing in Miniature Working
Models
3413 PARK HEIGHT AVE.
BALTIMORE, MD.

THE MODELMAKER
~BOUND VOL. I.

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. II.

1924. _ $1.60 60

1925. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy.

BOUND VOL. III. 1926. $2.10

or return your numbers to us with $1.10 and we will mail you a new bound copy.

We still have a few copies of Nos. 1, 2, 3, 4, 5 of Vol. I. Price 10c each.
We still have a few copies of Nos, 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12 of Vol. 2.

Price 10c each.

ie ye ae rat
a y

-SPON & CHAMBERLAIN, 120 Liberty Street, New York

198

THE MODELMAKER

* (oe. oe ae - S. "fs
SS an a ee >

x “ a

; =

> 4

BOOKS FOR MODEL MAKERS

MODEL ELECTRIC LOCOMOTIVES AND
RAILWAYS, by Henry Greenly. -Design, devel-
opment, construction and running, including
equipment. The latest word on this scientific
patie y 313 pages, 325 ilius., 8% x 5% in., cloth,

MODEL STEAM LOCOMOTIVES, their details
and practical construction, by Henry Greenly.
Considered the very best work on the subject.
316 pages, 377 illus. and detailed drawings, 8%
x 5% in., cloth, $2.50.

MODEL RAILWAY HANDBOOK, by W. J.
Bassett-Lowke. <A practical guide to the in-
stallation and purchase of the equipment of a
model railway. 6th ed. ravines rae pages,
214 illus., 9% x 6 in., boards, $1.0

MODEL RAILWAYS, their design, details and
practical construction, rolling stock, operation and

maintenance, by H. Greenly, 315 pages, 399 illus.,
8% x 5% in., cloth, $2.50.

MODEL ENGINEERING. Describing tools and
equipment, how to use the tools, and to execute

~the numerous processes involved. Giving the

details of steam, gas, and electric models. Show-
ing the functions of the various parts and ex-
plaining step by step the actual workshop
methods of building them. Including the con-
struction of boilers, locomotives, &c., &c. By
Henry Greenly. VII + 407 pages, 809 illustrations,
84% x 5% in., cloth, $3.50.

MODEL SAILING YACHTS, how to rig,
build and sail them, by P. Marshall. The most
practical handbook covering the latest de-
signs. 112 pages, 59 illus., 7% x 5 in., limp
boards, 75 cents.

MODEL SAILING BOATS, their design,

building and sailing. By E. W. Hobb. The
best work on this subject. 319 pages, 352
fllus., and working drawings, 8% x 5% in.,
cloth, $2.50.

VIOLIN MAKING AND REPAIRING, by R.
Alton. <A practical handbook. 152 pages,- 61
illus., 7 x 4% in., paper, 75 cents.

THE MICROSCOPE. The Beginners’ Guide to,
with a section on mounting slides, by C.
Heath. An excellent guide book for the be inner.
120 pages, 46 illus., 7 x 4% in., boards, 75 cents.

PRACTICAL BOOKBINDING, by W. Pearce.
A text book intended for those who take up
the art of bookbinding, giving full instruc-
tions describing the various operations. 104
pages, 92 illus, 7% x 5 in., limp boards, 76
cents.

THE BEGINNER’S GUIDE TO CARPEN-
TRY, by H. Jarvis. A practical handbook giv-
ing illustrations of tools and how to use them
and how to lay out work. 99 pages, 99 illus.,
7% x 5 in., limp boards, 75 cents.

WORKSHOP WRINKLES AND RECEIPTS,
by P. Marshall. <A collection of useful work-
shop hints in mechanics and electricity. 72
pages, 46 illus., 7% x 5 in., limp boards, 75
cents.

THE MODELMAKER

ELECTRICITY

AUTOMOTIVE MAGNETO IGNITION, its
principle and application with special refer-
ence to aviation engines. By M. E. Toepel.
2nd edition. 146 pages, 90 illus., 74% x 4%
in., limp cloth, $2.00.

ELECTRICAL RECREATIONS. Experi-
ments in electricity and magnetism with di-
rections for making the necessary apparatus.
By V. E. Johnson. 158 pages, 85 illus., 84% x
5% in., cloth, $2.00.

ELECTRICAL APPARATUS MAKING FOR
BEGINNERS, by A. V. Ballhatchet. A prac-
tical handbook for home and school work-
shops, giving full particulars for making dif-
ferent kinds of apparatus. 164 pages, 60 illus.,
ax “D2 in; cloths $125:

MORE ELECTRICAL APPARATUS MAKING, a
continuation of Electrical Apparatus Making for
Beginners, by A. V. Ballhatchet. 168 pages, 85
illus., 7% x 5 in., limp, $1.25.

ELECTRIC CLOCKS AND CHIMES. A prac-
tical handbook giving complete instructions for
the making of successful electrical time pieces,
synchronised clock systems, and chiming me-
chanisms. The best book on the subject, 159
pages, 154 diagrams and illustrations, 74 x 5
in., cloth, $1.50.

PRACTICAL ELECTRICS. The universal
handy book on everyday electrical subjects.
Hee pages, 126 illustrations, 7% x 5 in., cloth,

cents.

THE WIMSHURST MACHINE. How to
make and use it, by A. W. Marshall. With
complete detailed drawings. Second edition.
rE pages, 30 illustrations and drawings, cloth,

cents.

MAGNETS AND MAGNETISM SIMPLY
EXPLAINED, by A. W. Marshall, A practical
treatise without mathematics, including the
principles of both permant and electro mag-
nets. $0 pages, 49 illustrations, cloth, 75
eents.

ELECTRICAL MEASURING INSTRUMENTS,
Maintenance and Repair, with explanation of the
principles of operation, by H. G, Yarril. 178
Ae Sa 7 plates and 14 illus., 74% x 5 in., paper,

ELECTRICAL INSTRUMENTS AND TEST-
ING. By N. H. Schneider. Fourth edition,
greatly enlarged. XXIV + 288 pages, 133 illus-
trations, 7144 x 5 in., cloth, $1.50.

PRACTICAL ELECTROPLATING, by G.
Gentry. A handbook on the apparatus and
processes employed in the electro deposition
of metal. 73 pages, 41 illus., 7% x 5 in., limp
boards, 75 cents.

ELECTRIC GAS IGNITING, How to Install
Gas Lighting Apparatus. By H. S. Norrie. VIII
+ 101 pages, 57 illustrations, 7% x 6 in., cloth,
75 cents.

DYNAMO DESIGN, SCHEDULES FOR.
These sheets are for carrying out dynamo de-
signs according to the method laid down by
S. P. Thompson. Five sheets to a set; size
10% in. x 8 in. Per set, 25 cents. Special
price on a quantity.

199

ELECTRICITY

HOW TO INSTALL ELECTRIC BELLS,
ANNUNCIATORS AND ALARMS, including
battery, wiring, ete. By N. H. Schneider.
Second edition, considerably enlarged. XII +
83 pages, 70 illustrations, 7% x 5 in., cloth, 75
cents.

WIRING HOUSES FOR THE ELECTRIC
LIGHT. By N. H. Schneider. Second edition,
revised and enlarged. VIII + 112 pages, 45
illustrations and 9 page plates, 7% x 6 in.,
cloth, 75 cents. :

LOW VOLTAGE ELECTRIC LIGHTING
WITH THE STORAGE BATTERY. Showing
latest Amaerican types and complete outfits.
By N. WW. Schneider. Second edition, revised
wend enlarged. X + 94 pages, 31 illustrations,
7% x 6 in., cloth, 75 cents.

THE AB C OF DYNAMO DESIGN, by A. H.
Avery. 4th ed. revised and enlarged. Giving
general principles of dynamo desi with
complete instructions and drawings for mak-
ing a 30-Watt, a 500-Watt, and a 2 Kilowatt
dynamo. With notes on dynamo construction
and winding. 140 pages, 70 illus., 7% x 6 in., ~
cloth, $1.26.

INDUCTION COILS. How to make and use
them, A practical handbook on the construc-

CUS ee a ae ae ee ee eT eh ee ee ee eee

tion and use of medical and spark coils, by 4
P. Marshall. Revised and enlarged. 70 pages, ;
35 illustrations, cloth 75 cents. 3

PRACTICAL INDUCTION COIL CON- ,
STRUCTION, by John Pike. <A handbook of 3
constructive details and workshop methods, ~
used in building and repairing modern spark i :
coils. 96 pages, 36 illus., 7 x 5 in., limp aa
boards, 75 cents. ;

INDUCTION COILS, How to Make and Use > Sa
Them, including Ruhmkorff, Tesla and Medi-
cal coils. By H. S. Norrie. Second edition,
revised and enlarged. XVI + 269 pages, 79
illustrations, 74% x 5% in., cloth, $1.50.

MAGNETO TELEPHONE. Its construction,
fitting up, and use. By N. Hughes. VII + 80
pages, 23 illustrations, cloth, 75 cents.

TELEGRAPHY FOR BEGINNERS. The
standard method with lessons. By W. H.
Jones. Second edition, revised; VI + 68 pages,
19 illustrations, cloth, 75 cents.

PRACTICAL ALTERNATING CURRENTS
AND POWER TRANSMISSION. By N. Harri-
son. Specially intended for the practical man,
OS tlhe: 172 illustrations, 74% x 5% in.,, cloth,

ALTERNATING CURRENTS SIMPLY EX-
PLAINED. An elementary handbook on gen-
erators, transformers and motors, by A. W. ‘ ef
Marshall. 90 pages, 33 illustrations, cloth, 75 ve
cents, 2

SELENIUM CELLS. Design, construction and
use of the various makes. Illustrated with draw- ‘ee ee
ings and half-tones. 90 pages, 7% x 5 in., cloth, ee,
by T. W. Benson, $1.50.

THE LEAD STORAGE BATTERY, by H.
G. Brown. A practical handbook. 162 pages,
60 illus., 83% x 5% in., cloth, $2.00.

THE MODELMAKER

MODEL LIBRARY SERIES.

All these books are fully illustrated, 7% x 5 in,
paper covers. Price, 35 cents each.

Electricity for Beginners.—Schneider.
Dry Batteries, How to Make.
Electric circuits and Diagrams, pt. I—Schneider.
Electric Bells and Alarms.—Schneider.
Modern Primary Batteries.—Schneider.
_ Experiments with Induction Coils.—Norrie.
Electric gas Igniting.—Norrie.
Small Accumulators.—Marshall.
Model Steam Engine Design.—De Vignier.
10. Practical Electrics.
11. Inventions, How to patent them.—Wright.
12. Woodwork Joints.
13. Fireman’s Guide to Care of Boilers.—Dahlstrom
14. The Slide Valve.
15. The Magneto-Telephone.
16. The Corliss engine.
17. Making Wireless Outfits.—Harrison.
18. Wireless Telephone Construction.—Harrison.
19. The Wimshurst Machine.
20. Simple Experiments in Static Electricity,
21. Small Electric Measuring Instruments.
22. Electric Circuits and Diagrams, Part 2.—Schneide’.
23. Induction Coils. How to make and use.
24. Model Vaudeville theatres.—Schneider.
25. Alternating Currents, Simply explained.—Marsha.
26. How to Build a bi-plane glider.—Morgan.
27. A BC of the steam engine.—Lisk.
28. Simple Soldering and Brazing.—Thatcher.
29. Telegraphy for beginners.—J ones.
30. Low voltage lighting with batteries.
31. Gas and oil engines.—Lieckfield.
82. Wireless Telephone Construction-Pt. 2
33. Wiring Houses for Electric Light.
34. Magnets and magnetism.—Marshal:.
36. Windmills and Wind Motors.
37. Wireless telegraphic sets, pt. 1.—Collins.
38. Wireless telegraphic sets, pt. 2.—Collins.

TWELVETREES, R. Marking out for Machinists, pap. .35
Practical “Hand Forging, pap...:....-s.esce 035
Fitting, Adjusting, Bearings, pap........... aK)

Peis

Neha it

THe MopetMAKer. An American monthly
magazine devoted to the development of Scien-
tific Modelmaking. Featuring descriptions of the
construction of American model locomotives,
marine and stationary steam and oil engines, sail
and power boats, etc., etc., fully illustrated, pub-
lished monthly. Annual subscription $1.00, post-
paid.

Vol. 1, 1924, 112 pages, illus., cloth gilt, $1.60.

Vol. 2, 1925, 204 pages, illus., cloth gilt, $2.10.

Vol. 3, 1926, 208 pages, illus., cloth gilt, $2.10.

~GaLvanizinc. A _ theoretical and _ practical
treatise by Heinz Bablik including hot galvanized
coatings; electro-galvanized coatings; Sherard-

ized coatings; and the Schoop process. Rust and

its prevention. Testing and judging galvanized
coatings. Index, 168 pages, 84 illus., 954x6 in.,
cloth, $5.00.

201

202 THE MODELMAKER

THE “MODEL ENGINEER” SERIES
OF HANDBOOKS

Price, 35 Cents Rack

Electric Bells and Alarms. 3
Telephones and Microphones. 4
Electric Batteries. “3
Model Boiler Making. ,
Metal Working Tools and their Uses. “
Simple Electrical Working Models. ;
Simple Mechanical Working Models.
Smal DIneaes and Motors: How to Make and Use
em
Model Steamer Building: Hulls and Deck Fittings. %
Machinery for Model Steamers. 4
Small Electric Motors.
Simple Scientific Experiments,
Meteorological Instruments.
The Locomotive: Simply Explained.
Mechanical Drawing: Simply Explained. -
Electric Lighting for Amateurs. 4
Model Steam Turbines.
The Beginner’s Guide to the Lathe.
Gas and Oil Engines: Simply Explained.
A Guide to Standard Screw Threads and Twist Drills
(Small Sizes).
Model Steam Engines. .
Simple Photographic Experiments.
Simple Chemical Experiments.
Electrical Apparatus: Simply Explained.
Optical Instruments: Simply Explained.
Wireless Telegraphy: Simply Explained.
Micrometers, Slide Gauges, and Calipers: Their Con-
struction and Use.
Electric Hand and Cycle Lamps: Their Construction
and Uses. ;
A Small Power Electric Light Plant. x4
Milling in Small Lathes. ; ;
Magneto: Simply Explained.
Hardening and Tempering Engineers’ Tools
Model Petrol Engines
Planing and Shaping
Fifty Useful Tools .
Soldering, Brazing and the Joining of Metals. 4 5
How to Read a Workshop Drawing. 3
Pattern Making.
Brass and Iron Founding.
How to Build a Bicycle.
Soft Woods and Colonial Timbers.

AERONAUTICAL ENGINES. A critical
survey with special reference to the balanc-
ing of inertia are By F. J. Kean. 101
pages, 31 plates, 8 x 5% in., cloth, $2.50. 2a

HOW TO BUILD A TWENTY-FOOT BI- A
PLANE GLIDER, by A. P. Morgan. A prac- $
tical handbook on the construction of one of
these machines, with full detailed drawings.

60 pages, 31 illustrations, cloth, 75 cents.

SOARING FLIGHT. ‘A simple mechanical so-
lution of the problem, by Lieut.-Col. R. >
Villamil. 48 pages, 1 page illus., 7% x 4% in., >i
paper, 50 cents, b ac”

THE MODELMAKER

STEAM ENGINEERING

HOW TO START MARINE ENGINES IN A
COLD ‘SHIP, by W. J. Woodcock. Full instruc-
tions for setting all the valves and operating
single and cross-compound turbines, triple ex-
pansion engines, semi-diesel friction drive and
full diesel electric drive; giving the latest types
of American Marine Engines in American ships.
158 pages, 10 colored plates and 4 black plates,
7% x 4% in., limp cloth, $3.00.

HOW TO RUN ENGINES & BOILERS.
Practical instruction for young engineers and
steam users. By E. P. Watson. X + 160
pages, 31 illus., 74 x 5 in., cloth, $1.50.

STEAM ENGINES AND BOILERS. An ele-
mentary textbook on, for the use’ of students.
By J. H. Kinealy. Sixth edition, VIII + 269
pages, 107 illustrations, 8vo., cloth, $2.00.

THE FIREMAN’S GUIDE. By J. P. Dahl-
strom. <A practical handbook on the eare of
steam boilers, IV + 28 pages, 7 x 6 in., cloth,
75 cents.

THEORETICAL AND PRACTICAL AMMO-
NIA REFRIGERATION. A practical hand-
book for engineers interested in the manage-
ment of ice and refrigerating machinery. By
I. I. Redwood. IX + 146 pages, 14 illustra-
tions, 7% x 5 in., cloth, $1.50.

SLIDE VALVE SIMPLY EXPLAINED. By
W. J. Tennant. Revised and enlarged. By J.
H. Kinealy. A practical handbook for engineers.
VII + 83 pages, 41 illustrations, 7% x 6 in.,
cloth, 75 cents.

MECHANICAL DRAFT. A practical hand-
‘book for engineers and designers for power
plants. By J. H. Kinealy. 156 pages, 13 page
plates, 6% x 4% in., cloth, $2.00.

LOW PRESSURE STEAM HEATING. A
series of charts on heavy folding card. By J.
H. Kinealy. Size 13 x 9% in., $1.00.

LUBRICANTS, OILS & GREASE. Giving
practical information regarding their composi-
tion, uses and manufacture. By I. I. Redwood,
IX + 54 pages, 3 folding plates, 8% x 5% in.,
cloth, $1.75.

ALGEBRA SELF TAUGHT, by W. P. Higgs.
For the use of home students, mechanics and
young engineers. 104 pages, 7% x 6 in., eloth,
75 cents.

ENGINEERING MATHEMATICS SIMPLY
EXPLAINED, by H. H. Harrison. Com-
mencing with simple Algebra and leading up
step by step to calculus with numerous ex-
amples worked out. 172 pages, 62 illus, 7%
x 65 in., cloth, $1.00.

PRACTICAL LESSONS IN METAL TURN-
ING AND SCREW CUTTING, by P. Marshall.
A very practical handbook, plainly written,
giving a variety of examples of work in a
Stee 217 pages, 220 illus., 7% x 5 in., cloth,
1.25.

THE HANDY SKETCHING BOOK, ruled
plain, 8ths to one inch, printed on both sides,
size 5 x 8 in., limp card back, 35 cents.

203

204 THE MODELMAKER

PAINTING AND LETTERING

DECORATION AND RENOVATION OF
THE HOME, by A. S. Jennings. With a chap-
ter on period furniture from a decorative
point of view by H. E. Binstead. 220 paee
14.colored plates and other illus., 11% x
in., cloth, $5 00

PAINTERS’ AND DECORATORS’ MATERIALS,
describing their sources, properties and distinguish-
ing tests, by R. W. Cooper. 157 pages, 19 illus.,
81%, x 6% in., cloth, $2.00. ;

THE PERIODS IN INTERIOR DECORA-
TION. A practical guide. By H. Jeans. With
a chapter on the progress of paper hanging.
127 pages, 6 illus., 34 page plates. 7% x5 in
cloth, $1.50. , }

PAINT AND PAINTING DEFECTS, their F.
Detection, Cause and Cure, by J. Cruickshank A:
Smith. An exceedingly useful book for the :
painter. 174 pages, 7% x 6 in., cloth, $1.50. $

PAINTING TROUBLES AND THEIR REME- ; E
DIES, >
By Andrew Millar. These notes are arranged he

alphabetically, including distempers, wall :

papers and hangings. Full of practical infor- .

mation. 112 pages, 71%4x5 in., cloth, $1.50. '

THE PAINTER’S POCKETBOOK, by A. S. :
Jennings. A practical reference guide to 3
everyday work. 244 pages, illus, 64 x 3% j

— wea

aA ee a i Ve" 1s

in., cloth, $1.50.

PAINT AND COLOR MIXING, by A. S.
Jennings. A practical handbook for painters,
decorators, artists and paint manufacturers.
With 1,500 different color mixtures and hun- ;
dreds of color samples. 6th ed., partly rewrit- ;
ten. X + 243 pages, a age 14 color plates, a
8% x 5% in., cloth, $5.0 > sem

PAINTING AND piso by S. W. New-
comb. A _ practical little handbook for the be-
ginner, including coloring in distemper. 63 pages,
15 illus., 744 x 4% in., paper, 35 cents.

DECORATORS’ SYMBOLS, EMBLEMS AND es he
DEVICES. Seals
By G. C. Rothery. Illustrating and describing aa

a number of emblems frequently used by the

decorator. 131 pages, 19 page plates, 74%4x5

in., cloth, $1.50.

MOTOR AND CARRIAGE PAINTING, by A.

Bates. Describing the different processes neces-

sary for good work. 2nd edition enlarged, 218 2B of

pages, illus., 8% x 5% in., cloth, $2.50.
STENCILS AND STENCILLING, for all

purposes, Artistic and Decorative, by A. L.

Duthie. 162 pages, with Petes) and

many designs, 7% x 5 in., cloth, $1.5 Rs
SCUMBLING AND COLOR GLAUING? “py ALS “

Millar. A practical handbook for house painters,

coach painters and others. New edition, 100 pages,

cpowae of color san ples, 8% x 5% in., cloth, oan
PAINTING BY IMMERSION AND BY eet
COMPRESSED AIR, by A. S. Jennings. A oe
practical handbook covering dipping, and ay
painting by compressed air. For out door and <a
; q

factory use. XV 272 pages, 149 illus., and
designs, 8% x 5% in., cloth, $3.00.

THE MODELMAKER

205

MISCELLANEOUS BOOKS

STAINING, VARNISHING AND ENAMELING,
by J. H. Galloway. The making and using
ot stains and varnishes for new and old work,
and enameling. 122 pages, 74 x 5 in., cloth, $1.50.

PRACTICAL GILDING, BRONZING AND
LACQUERING, by F. Scott-Mitchell. 175
pages, illustrated with some color plates,
% x 5 in., cloth, $1.50.

A SYSTEM OF EASY LETTERING, by J.
H, Cromwell. Consisting of about 40 alphabets
23 aos designs. Twelfth edition, 84% x 5%

cents.

DISTILLATION OF ALCOHOL, A practical
handbook on the, from farm products, also the
process of denaturing alcohol. By F. B.
Wright. Second edition. 281 pages, 62 illus-
ene. and 8 folding plates. 7% x 6 in., cloth,

SODA FOUNTAIN FORMULAS. A practi-
cal receipt book of nearly 500 formulas for
druggists, confectioners and vendors of soda
water. By G. H. Dubelle. Fourth edition, 161
pages, 7% x 5 in., cloth, $1.50.

THE MANUFACTURE OF CHOCOLATE,
and other cacao preparations, by Dr. Paul
Zipperer. 3rd ed. revised and partly re-writ-
ten. Considered the most practical work on
this subject. X -+ 333 pages, 102 illus., and
3 folding plates, 9% x 7 in., cloth, $7.50.

NEW AND ORIGINAL MAGIC. Comprising
a number of novel and entertaining effects; a
fund of information for the artist and his
younger brother the amateur, by Edward M.
Massey. 205 pages, 28 pages plates, 11 illus.,
8% x 5% in., dark blue fabricoid, with elaborate
gold cover stamp, $3.00.

LATEST MAGIC, by Prof. Hoffmann. Being
Original Conjuring Tricks, including new ap-
pliances, novel application of Black Art, card
tricks, miscellaneous tricks, patter, use of the
wand, a few wrinkles. The Author’s Latest
Work. 232 pages, 42 illus., 8% x 5% in., cloth
gilt, $2.00.

MORE PAPER MAGIC. A collection of enter-
taining and amusing models, toys, conjuring tricks,
mostly made of paper. 124 pages, 239 illus.,
boards, 80 cents.

THE ATMOSPHERE, ITS CHARACTER-
ISTICS AND DYNAMICS, by F. J. B. Cordeiro.
VIII + 129 pages, $5 illustrations, 10% x 7%
in., cloth, $2.50.

THE GYROSCOPE; Theory and Practice, by
F. J. B. Cordeiro, the most complete treatise
on this subject. VII + 105 pages, 8% x 6%
in., cloth, $1.50.

BAROMETRICAL DETERMINATION OF
HEIGHTS. A practical method of barometri-
cal levelling and hypsometry. By F. J. B.
Cordeiro. Second edition, revised and enlarged,
6 x 4 in., limp cloth, 50 cents.

NATURAL PHILOSOPHY. Principles of.
By F. J. B. Cordeiro. In this book, the action
ne the tidal couple in changing the axial in-
clination of a planet, is rigorously demon-
strated. vi. 113 pages, 25 diagrams, 8% x 6%
in., cloth, $2.50. - :

206

THE MODELMAKER |

MISCELLANEOUS BOOKS

LAMINATED SPRINGS, by T. H. Sanders.
Calculations, Design and Manufacture for
locomotive, automobile and trolley cars. 8%
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THE DESIGN AND CONSTRUCTION OF OIL
ENGINES, by A. H. Goldingham, 5th ed. with
140 pages of new matter. Devoted to Modern
High Compression Itngines. The balance of the
work treats on HWarher types of Low Compres-
sion Oil Engines. With full directions for test-
ing, installing, operating and repair. 480 Prses,
200 illustrations, 7% x 5% in., cloth, $2.50

GAS ENGINE, IN PRINCIPLE AND PRAC-
TICE. Two-cycle and four-cycle types, with
description of various design. With notes on
gas producers. By A. H. Goldingham. 195
pages, 107 illustrations, 9% x 6% in., cloth, 76
cents,

PRACTICAL ENGRAVING ON METAL, in-

cluding hints on Saw Piercing, Carving, In-
laying, ete., by G. A. B. 3rd edition revised,
161 pages, 100 illus., 7% x 5 in., boards, 80
cents.

ORNAMENTAL LATHE WORE FOR AMA-
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on the execution of simple ornamental turning
and decorative inlaying on an ordinary lathe.
A very fascinating and beautiful art. 121
aie with 22 page plates, 7% x 5 in., cloth,

SIMPLE SOLDERING. Both hard and soft,

with directions for making home-made appara-
tus. By E. Thatcher. VIII + 76 pages, 62
illustrations, 74 x 5 in., 75 cents.

FRENCH MEASURES AND ENGLIS#F
EQUIVALENTS. Giving equivalents in inches,
and decimals of an inch, of from 1 to 1000
milimetres, and 1 to 100 metres, and table of
fractional parts of an inch with corresponding
decimals. By J. Brook. 80 pages, 4 x 3 in.,
limp cloth, 50 cents:

MOLESWORTH METRICAL TABLES, con-
taining linear. square, cubic and capacity
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75 cents.

BUCHANAN’S TABLES OF SQUARES.
Containing the square of every foot, inch, and
sixteenth of an inch between 1/16 of an inch
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CERAMIC GLAZES. Arranged for heat of
the soft porcelain kiln. By H. Rum Bellow.
Series A, Leadless Sanitary Glazes for hard
waterproof glazed brick and stone; porcelain
enamelled fire-clay sanitary ware; soft porce-
lain; strong clay ware. From the seven charts
formulas for any admixture of glazed ma-
terials can be obtained. Folio, cloth, $10.00:

CONCRETE DAM CONSTRUCTION. The
Caisson as a new element in Concrete Dam
Construction. By O. G. Aichel. 32 pages, 2
diagrams, 6 large folding plates, 9% x 7% in.,
paper, $1.00.

THE MODELMAKER

207

Industrial Alcohol, the Manu-
facture of, from farm produce,
by F. B. Wright, plainly written,
describing and illustrating the
various processes. 271 pages,
cloth bound, $2.50. Spon &
Chamberlain, 120 Liberty St.,
New York.

Shop Practice

For Home Mechanics

By RAYMOND FRANCIS YATES
Giving practical and useful infor-
mation concerning the various phases
of work that are included in amateur
mechanics, such as the use of mis-
cellaneous tools, drilling and ream-
ing, lathe work, pattern making,
hardening and tempering of steel,
soldering and brazing, the construc-
tion of a small power driven press,
general information, etc. 320. pages,
304 illus. 8% x 5’, cloth, Price $3.00
SPON & CHAMBERLAIN |
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Slide Valve Chart. A diagram
showing position of the crank
pin, eccentric, and piston, at the
point of admission, lead, full
feed port opening, cut off, re-
lease, full exhaust port opening
and compression, with descrip-
tive notes. <A _ blueprint, size
10” x 14”, price 35 cents.

THE DOMINION TOOLS
& CASTINGS CO.

433 HOMER STREET
VANCOUVER, B. C., CANADA

We carry a stock of goods from the
following British firms: “a

Stuart Turner, Ltd.

Mills Bros. of Sheffield
Liverpool Castings & Tool Supply, I.td.
ae Leeds Model! Co., Ltd. :

Economic Electric, Ltd.

Jackson Rigby, Ltd. (of Shalford)

TIME OF THE WORLD AT A GLANCE

This adjustable chart printed on heavy card will show you how to
find the tme of any place from any place you may happen to be

in by just a slight movement of the sector.

The illustration shows

the following example: While New York is.12:30 P. M..,. it is:

7:07 A.M.at Honolulu.

7:15 A.M. at San Francisco.

10:25 A.M. at Denver.

11:05 A.M. at Galveston.

11:28 at New Orleans or St.
Louis. ‘

12:17 P. M. at Washington,
bb fab x :

5:03 P.M.at Dublin, Ireland. |

5:25 P.M. at London, Eng- ¥°
land. any

Size, of Card, -9x7 in.,., wit

movable Sector in two col-

ors. 35 Cents Postpaid.

et eu

SPON & CHAMBERLAIN, 120 Libe

Oe av

4 2 ‘ ie

iy Se, New. York

208

WANTED

THE MODELMAKER

Is WORK WANTED

I make patterns, small cast-
ings and working models. Model-
making is my trade. James. Koch,
103 Summit Ave., Linwood, Pa.

MODEL MACHINERY

Sole U. S.: Agent for the noted Eng-
lish Engineers, Stuart Turner, Ltd.,
makers of Model Steam, Gasuline,
Gas Engines, Boilers, Fittings and
Trimmings; Electrical | Machinery.
Horizontal and Marine Engines, Sin-
gle to Triple Expansion. Castings
and parts, etc. “CABLE SERVICE.”

Alfred Paul & Son, Engineers

3 Ashland Street 4
Melrose Highlands, Mass., U. 8S. A.

Catalogue 25c, Coin or Post Office Order
1926 Catalogue Just Issued

THE BATHE MFG. CO.
. Model Engines,

Boilers, Boiler Fittings, Books,
Model Makers’ Supplies
Large Illustrated Catalogue 20c.

) (refunded on first order)
Dept. S.— 5214 Woodland Ave.,
PHILADELPHIA, PA.

WA: Al

I Get this Flexible and Do rk ble
| Shaft Outtit of a Pati ieee

Needed by every modeimaker, me-
chanie and for machine shop use.
It’s a precision instrument, consisting
of a ball-bearing coupling to connect
to any motor, 3 feet’ of flexible shaft-
ing and a ball-bearing chuck. Oper-
’ ates buffing wheels, reamers, metal
drills, files, burrs and we other
_ appliances.’ ~ Uses awyH - motor,
obtainable at small cost.
Special Offer — Send Only $5.00
This outfit sells for $45. As a spe-
_ cial offer from our factory to you,
_ send $5 with order and pay postman
$20, plus postage, on arrival. Satis:
a faction guaranteed or money back.
C1 The S. S. White Dental Mfg. Co.
‘4 ‘(Industrial Division)
rh 152 W. 42nd St., New. York

THE WADE BENCH LATHES.

_—

~ AN IDEAL XMAS GIFT

sais No. 2.
- Back Geared:
Screw Cutting

~ Capacity: 4” dia. x 12” ‘or 18’" length.

TURNING — FACING | — BORING — DRILLING #| >
é aie — THREAD CUTTING -

No. 1 Plain 4" x 12”...
No. 1. “

«$28.00

No. 2 Back Geared 4” x ‘t2°.. $88. 00
No. Bins ta 4 fs Rag es x 18” cree OD, 4

‘Catalogue showing ‘aetails and’ accessories’ ‘on request.

THE GEROLD COMPANY (DEPT. M21)
120-122 LIBERTY STREET, NEW YORK, N. Y.

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