38 



THE PRODUCTION AND USE OF LIGHT 



cuts (Figs. 19 and 20) show one form made of heavy sheet 

 steel. It is shaped much like a cheese tub, but is divided into 



Blower 



Mixer 

 FIG. 19. A gasoline gas machine. 



Carbureter 



four cells by the three false bottoms. Upon each of these 

 shelves, or bottoms, stands a spiral coil of absorbent material 



like lamp wicking. This 

 absorbent material is in- 

 tended to form a coil-like 

 partition extending from 

 top to bottom of each cell 

 so that the air must, in 

 passing through one cell, 

 pass through the long coil- 

 like passage. The bottom 

 of the passage is gasoline; 

 eacl^ side is the absorbent 

 material saturated with 

 gasoline. The cells are so 

 connected that air in pass- 

 ing through the carbureter 

 must pass through all four 

 of these passages. If 



straightened out the passage would be 2 in. high, 3 in. wide 

 and 300 ft. long. The purpose of the carbureter is to expose the 



FIG. 20* Sectional view of the 

 carbureter. 



