184 



Popular Science Monthly 



The steam engine is of the two-cylinder locomotive type with 

 slide valves. It is controlled by a small switch and lever 



Substituting Steam for Gasoline 

 in Automobiles 



GASOLINE is high. Next year its price 

 may be even higher. Herein lie the 

 possibilities of the new steam-driven auto- 

 mobile shown on this page. Like an ordi- 

 nary gasoline car in appearance, the new 

 steamer and its power plant eliminate the 

 clutch and gearset, thus making for easy 

 driving. The car is controlled by a small 

 switch and throttle lever aside from the usual 

 functions of steering and braking. 



It is said that the car can run 1,400 miles 

 without replenishing its water supply and 

 that one gallon of lubricating oil will last 

 for 8,000 miles. 



Mechanically, the power plant of the car 

 consists of a kerosene-fired boiler, a steam 

 condenser and a two-cylinder double-acting 

 steam engine. The water is pumped from 

 a storage tank beneath the driver's seat to 

 the boiler placed under the hood. 



The water is then heated and turned into 

 steam by means of a kerosene-burner below 

 the boiler. The kerosene supply is piped 

 from a tank at the rear of the car. It is 

 ignited by means of an electric hot point 

 controlled from the switch in the driver's 

 cab. The air with which the burning 

 kerosene must combine is automatically 

 supplied in the proper ratio by means of 

 an electrically-driven blower. 



From the boiler the steam is carried aft 

 to the steam engine which is mounted in a 

 unit with the rear axle, driving the wheels 

 direct. The exhausted steam is then 

 carried back to the condenser, which takes 

 the place of the ordinary gasoline car radi- 

 ator. It is there turned back into heated 

 water which is fed to the boiler. 



The Popularity of Liquid- 

 Measuring Pumps 

 THE great amount of gas- 

 oline consumed as a 

 motor fuel has been respon- 

 sible for the wide use of the 

 liquid-measuring pump. In 

 Greater New York alone 

 there are seven thousand 

 measuring pumps in use. 

 There are thirty-nine firms 

 engaged in making them 

 at the present time. 

 Briefly described, a measur- 

 ing pump is a pump adapted 

 for the measurement of fluids 

 in definite quantities by vol- 

 ume. In many instances the 

 pump itself is the measuring device, and in 

 other types the pump is only used to fill a 

 measuring chamber such as a pail or can. 

 The ordinary piston-pump discharges a 

 volume of liquid equal to the space volume 

 generated by the piston in its travel. The 

 pumps may discharge only on the upstroke 

 or on both the up and down strokes. 



OUANTin 

 STOPS 



The pump delivers gasoline to the automobile 

 with a minimum of waste and evaporation. 

 It is usually a measuring device in itself 



