DEVELOPMENT OF COOKING DEVICES 



151 



torch. In gasoline stoves it is common to use a little gasoline for 

 this purpose. Is there a cup beneath the small flow pipe in which 

 the gasoline may be burned? Just how is the gasoline collected in 

 this cup? As with the lamp, so the gasoline stove has a CARBURETER, 

 or MIXER. Of what does it consist? What is its purpose? 



To light the stove, run a little gasoline into the cup. Light it. 

 When this is all burned out, open the valve and see if any liquid 

 gasoline escapes from the little opening in the small flow tube. If it 

 does, you have not heated the tube hot enough, and you must run 

 more gasoline into the cup and heat again. 

 If no liquid gasoline is to be seen passing from 

 the small tube, or generator, to the carbureter, 

 light a match and hold it above the burner. 

 You should get a blue flame which gives off 

 much heat. Make a diagrammatic sketch 

 similar to Fig. 115, showing the essential 

 parts of your stove. 



Caution: When handling the gasoline stove, 

 all of the precautions given for handling gaso- 

 line should be observed. 



177. The Gas Range. The gas range 

 is a stove constructed to burn either 

 NATURAL GAS or manufactured ILLUMI- 

 NATING AND FUEL GASES. In some large 

 cities gas is manufactured especially for 

 fuel purposes and another grade of gas 



for illuminating purposes. In the smaller towns and cities 

 the same gas is used for both purposes. This is usually made 

 from coal, but crude petroleum may be used and pine wood 

 and resin have been used in the past (see Sec. VI, page 101, 

 Gaseous Fuels). 



In principle, the gas stove burner is exactly like the gasoline 

 burner shown in Fig. 115 with the cup for holding the gasoline 

 used in heating the vaporizer omitted. 



Exercise 42. Regulating the Air Supply of a Gas Stove 



Examine a gas stove carefully, noting the AIR REGULATOR at the 

 front of each burner. Note carefully how the supply of air is 

 regulated. Shut off the air supply from one burner. What is the 

 effect upon the flame? Why does it become a luminous flame? 



FIG. 115. Gasoline 

 stove. 



