246 



Automobile Engine Cooler Operates on 

 Steam Ejector Plan 



THE latest accessory to aid the water 

 circulation of an auto 

 mobile engine forces the 

 water through the sys 

 tern at a speed propor- 

 tional to the engine 

 heat generated. The 

 device is built on the 

 principle of the steam 

 ejector used to draw 

 water from a tank in- 

 to a steam boiler. 

 The harder the engine 

 labors, the more water 

 is circulated, so that 

 the possibility of over- 

 heating through an in- 

 sufficient supply is 

 greatly lessened. 



The device does not 

 take the place of the radiator but simply 

 aids it in its work. It is to be fitted on 

 engines using the thermo-syphon cooling 

 system in which the water automatically 

 circulates because hot water rises to 

 the top and colder water drops 

 to the bottom. The water is 

 cooled in passing through 

 the radiator by the con- 

 tact of the in-rushing air 

 against the radiator core 

 and passes from the 

 bottom through the en- 

 gine water jacket and 

 out at the top, as shown 

 in the accompanying 

 illustration. 



The device has no mov- 

 ing parts. It consists of 

 two pieces, a length of pipe 

 between the bottom of the 

 radiator and the water jacket 

 intake and a smaller pipe screwed into the 

 exhaust manifold. This pipe, bent over 

 the top of the engine as shown, terminates 

 in a small nozzle pointed toward the en- 

 gine inside of the larger pipe. Exhaust Elect 

 gas through the smaller pipe escapes 

 through the nozzle into the water which it 

 forces forward at a speed which is directly 

 proportional to the pressure of the gas. 



A ball-check valve in the small pipe 

 prevents any of the water from backing I 

 up into the exhaust manifold, as its 

 tendency usually is when the engine is 

 stopped. 



Popular Science Monthly 



ARROWS SHOW DIRECTION OF W«TER 

 ^--i) This apparatus circulates water through 

 the cooling system of an engine proportionally 

 to the heat that is generated by the engine 



Cooling the Air of a Room with 

 Cold Water Pipes 



THE simple but effective air cooler 

 shown in the illustration below has 

 in patented by Glen 

 rien, of Manhattan, Kan- 

 It consists of four coils 

 metal pipe, fitted one 

 inside the other for 

 compactness. Cold 

 water flows through 

 the pipes while an 

 electric fan blows the 

 sultry air of the room 

 over them. The air 

 leaves the pipes cooled 

 down to nearly the 

 temperature of the 

 water, and spreads 

 out over the room. 



This apparatus is 

 both economical and 



simple to operate. Few things are cheaper 

 than city water. 



. Humid and damp air is also deprived 

 of its disagreeableness by this apparatus. 

 The mere act of lowering the air's 

 temperature "squeezes" out 

 most of its moisture, which 

 condenses on the cold pipes. 

 Any dust and germs in 

 the air will be carried 

 down with the water 

 in the process. The 

 air is thus purified. 



By merely pressing a 

 push - button held in 

 the hand the air of 

 the room can be 

 changed by the patient 



Outlet 



/ ^^BM-JB^^^ Dnppc 



Waste 



A fan blows the air over a hundred coils 

 of water pipes, cooling and purifying it 



