T he Mode

A Journal of Small P ow

E

ngin

 Engineering.

Edited by 

P

ERCIVAL 

M

ARSHALL

, 

Assistant Editor 

 W

ALTER 

C. R

UNCIMAN

.

Technical Research and 

 Department 

 Manager : 

A

LFRED 

D

AWSON

.

A

LFRED 

W. M

ARSHALL

, 

 A.M.I.E.E.

Editorial, Advertising and Publishing 

 : 66, Farringdon Street, London. E.C.4.

Single Copies, 4d.. post free 5d. 

   

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Subscription, 

 Is. 8d.. post free anywhere.

V

O L

. 

L. No. 1184.

JANUARY 3, 

 WEEKLY.

Our Point of View.

To Our 

Visitors.

Before 

 hours 

have 

 

 shall once

again be occupied in 

 performance of a series

of pleasant 

  w h i c h

h a d   t h e i r   i n c e p t i o n

m a n y   y e a r s   a g o - i n  

 the 

 in 

  t h e

first 

 

  E x h i b i t i o n  

 held. On

that occasion the

g r e a t e r   n u m b e r   o f   m o d e l

engineers and their friends mhom we met 

n a t u r a l l y ,  

 to us; 

 had met 

 

the pages of our journal. Since then the stranger

  h a s   g r a d u a l l y  

 year 

 

each occasion

a s s u m i n g

 

  t h e

 of a 

 of mutual interests than

 

  o f   s i g h t s e e r s  

  f o r   n o v e l t y .

B u t   i n  

 old 

 

  m u s t   n o t  

u n m i n d f u l   o f   t h e  

 influx of 

  o n e s .

 

  o f   t h e m   t h e  

  p u r p o r t  

 

 

 

 

 

 

  e x p l a n a t i o n - b u t  

  f i n d  

 

 

 

  t o

t h e m  

  t h e  

 

 

 

What to Look For.

 the Exhibition is composed of three

sections-(r) the productions of individual effort,
comprising

mechanical,

electrical,

a n d   o t h e r

scientific models and apparatus entered for com-
petition, a n d   a   s i m i l a r  

 of 

  b u t   n o t

e l i g i b l e   f o r  

  i n   t h e   L o a n

Section.

S e c o n d l y ,  

 n-ill 

 the Clubs 

is, the 

 collection of models 

  m e m b e r s

o f  

 of 

 

  m o d e l   e n g i n e e r i n g

s o c i e t i e s   a n d  

 and sailing boat clubs of

L o n d o n   a n d   i t s   s u b u r b s .  

 thirdly, 

 is

the Trade 

The 

Origin of Many Models.

 one of the first 

 to 

 in

  m i n d - o f   t h e   n e w   v i s i t o r   t o   t h e  

  i s ,

 

 is 

  t o   s e t   a b o u t   s u c h l i k e  

 

T h e  

 can 

 be   By a process of care-

f u l   s e l e c t i o n . ”   I f   t h e r e   i s   o n e   f a i l i n g   m o r e
c o m m o n   a n d   m o r e   p r e v a l e n t   t h a n   a n o t h e r   t o

 the 

  t o   m o d e l   e n g i n e e r i n g   i s

heir it is 

  o f   a t t e m p t i n g   c o m p l i c a t e d  

too 

 in his career, particularly if he is not,

to begin 

 naturally adaptable to mechanical

 or is 

 

  e x p e r i e n c e   i n   t h e

handling of tools and 

 appliances. This

 of conception of 

   really 

 in

m o d e l  

i s   n o t   c o n f i n e d  

 any 

  t o

 

 

 

 of their 

  o c c u p a t i o n ,

 had no r e a s o n  

 need to give thought 

  m a t t e r .

 

  i n   q u a r t e r s  

  o n e

 

 expect to find it.

Only last month

 introduced 

 of the 

 

 

of the 

 to a firm of shipbuilders who 

to 

   model steam dredger built for exhibi-

tion purposes.

 fen- 

 after the 

t i o n ,   h e   c a m e   i n   t o  

 us 

 a 

  p r i n t

u n d e r   h i s   a r m   m e a s u r i n g   n i n e   f e e t   l o n g .   I t
n-as a 

 

 drawing 

 of the

dredger, full size of the required model, 

 

  t h a t   t h e   j o b   w o u l d  

    m a s s   o f

a u x i l i a r y  

  c o m m o n  

 

 of that

 

 

 of 

  w o u l d  

  i n v o l v e d

a s m u c h  

 as the compound engine illus-

trated in our present issue. 

 years at t e n

h o u r s    

  w o u l d   n o t  

 enabled a 

maker of 

 first r a n k  to complete the hull and

m a i n   e n g i n e s ;  a n d  

  t h e   f i r m   a s k i n g   f o r

2.

The Model Engineer and Electrician.

January   

   

tenders wished for a scale model complete with

all auxiliaries to   ready for the big exhibition

at Wembley in April next! When such ideas

can emanate from sources intimately concerned

with engineering work, one 

 

 

 the general tendency of the stranger to

 real model work as the product of a 

 hours. What, then, can the beginner do,

and how can he commence   a process of 

selection 

He can commence by reviewing, as

 as his time and inclination will permit. the

The Yacht Model Racing Association.

N.3, will 

 

 of our readers who 

What’s in a name?

 is the question at

present agitating the minds of manv model

 with 

 

 of the association.

yachtsmen, for it is proposed to 

 the

 Yacht Racing Association. 

 are

divided   but 

 think, now that its Constitution

has been so improved, it could not adopt a

better title than the Yacht Model Racing Asso-

ciation, and yet 

 learn that 

 are some

 would like to see it The Model 

Association.

There is a very good reason 

the title 

 uphold. The words   model yacht”

are in general use by the public as describing

 kind of 

 production, and ordinarv

people do not recognise 

 difference except 

 and price 

 years the leading

model clubs have been interested   the m-o&c-

 of 

 models such as the 

 Class,

the 

 Class, and, lastly, the z-inch

to the foot 6-Metre Class for International

racing. All these are strictly 

 models in

design-so, also in a wav 

 the 

 are built from 

 and mav be said

to be models of the 

 

 is

still racing.

A model yacht (as the public

 it) can be bought in any toy-shop,

but a yacht model has to   designed and built

by experts. Bearing these facts in mind, we are

surprised to hear that those 

 are so keen on

racing yacht models should not 

 the

difference in the title of their association. 

A s

the annual general meeting of the (at present)

 is to   held towards the end of this

month, 

 may still hope the good sense of the

meeting will see to it that the body it represents

gets a name befitting its scope, activities, and

aspirations. And so now that 

 within its

ranks is stilled, 

 we express another hope 

that its members 

 settle down to design and

build, and race; that its leading spirits will try

to elucidate for the 

 of the less experienced

yacht builders matters of moment pertaining to

the scientific and practical side of the subject,

   

 of lectures and demonstrations;

and, finally, that the association will before 

long be able to exercise a beneficial influence 

the 

 of more and 

 sailing waters

 they 

 needed throughout the coun-

try. The fact that individual citizens may now

become members, 

 

 are attached to

any local club or not, should go far towards

strengthening its position and fitting it to tackle

such 

 

Mr. C.   Forge, the

Hon. Secretnrv. 

 Grove. London.

 of other modellers, a vast record of which

 be found in the back numbers of 

 

Single copies of most of the issues

 still to be had, but were we bent on his

errand we should prefer a few of the 

volumes. Each volume contains one half-year’s

issues, and as much of the subject matter coin-

tained therein is presented, and then discussed

and developed with a natural sequence, the read-

ing up of any given subject is at once found both

acceptable in form and 

 in effect. Our

representatives, who will be in attendance at the

 Stand throughout the Exhibition, will

gladly advise any inquirer in search of reading

matter on any particular subject.

Auxiliary Information for Model Engineers.

But besides the M.E. itself. 

 

model engineer will find on 

 

 mass of other reading matter to 

 in.

Amongst this the 

 series 

of 

 handbooks

 attract his attention. be his interests ever

so diverse. There are 

 

 to select from,

each dealing with a distinct 

 and each

based 

 the practical experience of its author.

Then a perusal of our complete book-list will

reveal the fact that a new series-“ The Prac-

tical Workshop 

 “-has just been started,

 so far Nos. 

I

,   and 3 have been published.

These little works are also   auxiliaries,” and

are designed to meet the 

 the man uith

a workshop who is wise enough to be not above

gleaning useful information 

 and when he

can. No. I

is on

 

o u t  

  N o .  

2  

 

  P r a c t i c a l   H a n d

Forging,” and No. 3 

on 

Fitting and Adjusting

 We 

 know which should be

read 

That depends so 

 upon the

inclination of the reader, in what 

 

I t   m a y   b e   s a i d ,   h o w e v e r ,   t h a t

  a u t h o r ,   C a p t a i n

R i c h a r d  

h a s   s u c c e e d e d   i n  

a surprising

amount of practical advice into a 

 

 and presented what he has to 

 in a 

compass,

readable form. These. then. are a few of 

things and factors 

   to make   the

 has treated his 

 in a 

origin of many models,” and we beg the visitor,

 is this week 

 perforce, only super-

ficially acquainted with the 

 of model

engineering, to ponder our 

 

 

  a s k   u s   t o

state that 

 of the models described in our

recant article    Commercial Models   were

built to 

 received by them, and handed

on to Messrs. 

 Models, Ltd., for whom

 were acting as sole concessionaires.

January   

The Model Engineer and Electrician.

3

Man, Petrol, and Electric Power Plants for Pumping.

AM one of those 

 read with especial

 the discussion 

 in 

  a n e n t

small internal combustion engines.

About ten

years ago I 

 bitten with the bug of making

things, and I fitted up a small workshop with a

Barnes’ screw-cutting bench lathe,   grindstone

and an emery 

 and I purchased a   two

cycle   

 engine to furnish power. The

engine ran at 

 

 controlled by a centri-

fugal governor acting on the throttle. It was

r a t e d   a t    

 if I 

 Until I got it

bolted to a concrete base, 

 about a ton,

the little thing used to travel all over the shop

With Some Reference to Steam.

 

 

 

  ( N e w  

  U . S . A . )

 was better than a foot treadle, and   do not

  e 

 many of such small two-cycles are any

better than it was. I took it apart for some rea-

son, and it took two men two days to get one

fy-wheel off.

It was well put together 

Since then I have had much experience with

 gas engines, and the only place I care for

the two cycle design is in a motor-boat where

the load is virtually constant-and even then

I think the four cycle is better.

I forgot that I 

 to explain that I sub-

scribed to the 

 E

N G I N E E R  

in those days,

and read every 

including the 

“--and 

 

 is 

 his gas tank with 

 

 

 grease cups, pouring water 

 the hopper, putting

the belt on,   lacing   when 

 breaks- 

on its skids, nails and screws very quickly

ments.

I again am a subscriber, and read with

giving up the 

 struggle.

It had 

no less interest; although in those days I had to

 but one stopped trying to talk 

 it

learn 

 a 

 tap   or a   die    w a s ,   w h i l e

exploded 

 times a minute.

After I led the

to-day I call myself a mechanical 

 and

exhaust far away through a long 

 and 

an 

 engineer, and have designed and

came 

 of the vibration with sheer mass of

manufactured some pretty complicated 

concrete, the machine became something of a

trical-mechanical devices.

comfort. It 

 many times refuse to start

To come back to the gas 

engine.

I recently

for half an hour, then run 

 all through no

built a new home. (The carpenters built it (at

discernable cause, and it would four cycle, and

   day). I paid for it.) There was no water

eight cycle, and at times   hit   about every

supply 

 so I had a well driven in back of

ten seconds, and do all sorts of weird things.

I 

the house,   feet deep. For a while I pumped

used to   cuss  it often, but 

 couid one do?

the required 

 into the tank in the attic