THE UNIVERSITY OF ILLINOIS LIBRARY

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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

Copyright, 1926, By Sron & CHAMBERLAIN

All rights reserved, including that of translation into foreign languages.

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,

9

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

Copyright by Spon & Chamberlain, January, 1926

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-

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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.

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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.

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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.

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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

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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

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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.)

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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.

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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

"i

‘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.

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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.

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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.

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