3) An open light should never be permitted nearer than ten feet from the generator. The generator should never be nearer than fifteen to twenty feet from furnace or stove. Do not hunt for gas leaks with a flame or light.
Fig. 157. Pressure
tank for gas.
4) Do not use any artificial light except electric light when cleaning or repairing generator, or carry a lighted pipe or other fire about it, even when empty.
5) If water in any chamber should freeze, do not attempt to thaw it with anything but hot water.
6) Keep the motor oiled. Oil once in six months.
282. Compressed Gases and Oils. Gases, such as Blau gas, Pintsch gas, and prestolite gas which is compressed acetylene gas, are compressed in strong tanks and sold for use in lighting and light housekeeping. Gasoline and alcohol also are occasionally stored in very strong tanks under enough pressure to make them flow thru very small pipes to the point where they are wanted for use. These are frequently used for lighting isolated public buildings, such as rural schoolhouses.
As the gas or oil is used, the pressure diminishes. There is usually a pump attached to the tank to pump in air in order to keep up the pressure. The pump is similar to a bicycle pump (Fig. 157).
Questions for Part X