Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . eration of these irons isidentical to those using gasoline,but they are preferred by those whofear the use of that fuel. In realitythere is little difference in thedanger attending the use of thetwo liquids. It is only fair to say,however, that the use of any highlyvolatile fuel is attended with some danger when used carelessly,but with a reasonable amount of care and a knowledge of themechanism of the machine in use the danger is of minorconsequence. In Fig. 206 is illustrated ano
Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . eration of these irons isidentical to those using gasoline,but they are preferred by those whofear the use of that fuel. In realitythere is little difference in thedanger attending the use of thetwo liquids. It is only fair to say,however, that the use of any highlyvolatile fuel is attended with some danger when used carelessly,but with a reasonable amount of care and a knowledge of themechanism of the machine in use the danger is of minorconsequence. In Fig. 206 is illustrated another style of gasoline sad iron, theworking principle of which is the same as those already describedbut the supply tank is not heated to give pressure to the gasolinein the tank. In this iron the tank is located at one side of theiron and pressure is applied with an air pump as in the hollow-wire system of lighting. The burner is generated after themanner of the others and operated in exactly the same chief difference is that the possibility of excessive pressurethrough overheating is Fig. 206.—Gasoline flat-iron oper-ated by an air-pressure fuel tank. GASEOUS AND LIQUID FUELS 293 Alcohol Table Stoves.—In the United States the use of alcoholas a fuel has never been extensively employed because of theduty imposed on its manufacture by the Federal 1896 this duty was removed from denatured alcohol and thecost was sufficiently reducedto permit a great extensionin its use as a fuel. Denatured alcohol is anyalcohol to which has beenadded any of the list of pre-scribed volatile fluids that willrender the alcohol unfit foruse in beverages and not ma-terially change its heatingvalue. Denatured alcohol issold at a price that will per-mit its use in small flat-irons,table stoves and other forms ofburners where small amountsof heat are generated for con-venience. At the price of denatured alcohol as generally sold,it cannot compete with gasoline a
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