Fig. 97. Alcohol iron.
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184. Gasoline Irons. There are two kinds of gasoline irons. In one the tank is a part of the iron (Fig. 97), and in the other the tank is many feet away, where the gasoline is changed to gas by a cold-process gasoline gas machine and connected with the iron by a flexible tube. These latter operate like other gas irons.
Gasoline irons with the tank attached are operated the same as alcohol irons. The danger in these irons comes in the tanks becoming overheated. Alcohol is used first to heat the generator because it will not smoke the iron. The gasoline, when lighted, should burn with a blue flame.
The tank should be one which has been tested to stand a high gas pressure, as the gasoline in the tank may become heated and vaporize. The gas so formed must not escape into the room, where it might be ignited by a spark. If not allowed to escape, it exerts considerable pressure inside the tank. If the pressure becomes too great, it will break the tank, escape and ignite from the flame in the iron. The opening for filling must always be kept closed when the iron is in use.
Questions for Part VI
1. Explain the construction of various types of washing machines. What are the advantages of each?
2. What care should a roller wringer receive?
3. How does a centrifugal wringer dry clothes?