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Popular Science MontJdy 



A Little Gasoline Locomotive to Be 

 Used Near Front Lines 



IT is so vitally important to bring food 

 and ammunition to the front reg- 

 ularly and quickly that all the armies 

 run whole military trains right up to the 

 trenches. A special locomotive has been 

 designed in America to meet the special 

 needs of the army. It runs on a narrow- 

 gage track two or three feet wide, and 

 hauls a long string of heavily loaded little 

 cars. It is able 

 to turn sharp 

 curves at 

 will. It is pro- 

 pelled by a 

 four-cylinder 

 gasoline en- 

 gine, mount- 

 ed inside the 

 hood, just in 

 front of the 

 cab. The ex- 

 haust is dis- 

 charged 

 through the 

 stack. A gas- 

 oline exhaust 

 gives little or 

 no smoke, 

 and this as- 

 sists in keeping the little engine's move- 

 ments secret. Running in all sorts of 

 difficult places, the locomotive can ac- 

 complish a great deal of work, all without 

 revealing itself to the enemy. 



How the gasoline motor is connected 

 with the driving wheels of the locomotive 

 is interesting. Imagine the cab and 

 other superstructure as mounted on the 

 front end of an automobile running 

 backwards, and you have the underly- 

 ing idea. Where the rear wheels would 

 be on an automobile is a small crank 

 mechanism, visible just under the front 

 "steps" of the locomotive. The four 

 cylinders of the motor lie lengthwise 

 under the hood, just as they would in an 

 automobile. They drive this crank 

 through the medium of clutches, trans- 

 mission, and power-shafting in the 

 same way as they would the rear axle 

 of an automobile. Power is transferred 

 from the crank-mechanism to the driv- 

 ing wheels through the aid of connect- 

 ing rods. 



This little locomotive can 

 loaded with supplies for the 



"The Measure of a Man,'* to the 

 Inch — by Photograph 



IF you are a busy man and do not like 

 to use up a lot of your valuable time 

 in being measured for your new suit of 

 clothes, you can have your measurements 

 taken in the twinkling of an eye, by 

 photograph. 



This is the basic idea of a patent 

 granted to Emery E. Costly, of Walkers- 

 ville, Maryland. His invention will indi- 

 cate not only 

 the measure- 

 ments of a 

 man but his 

 weight as 

 well. The ap- 

 paratus con- 

 sists of a plat- 

 f o r m on 

 which is 

 mounted a 

 camera, a 

 scale, and a 

 height meas- 

 using stand- 

 ard on the 

 end of a plat- 

 form scale. 



There is 

 no tiresome 

 standing as there was when the tape mea- 

 sure did its slow work. All the prospec- 

 tive customer has to do is to stand on the 

 platform opposite to the camera. A 

 measuring device behind him will record 

 his height and other measurements and 

 scale his weight. All 

 these details, will appear 

 in the picture. 



haul several cars heavily 

 boys in the front trenches 



Be photographed on this platform and the 

 resulting picture will indicate your height, 

 your weight and youi measurements 



