Rivets are heated preparatory for driving in a forge, or more efficiently in a small oil-burning furnace, a type of which is shown in Fig. 236. This consists of a small sheet-steel box, lined with fire brick, mounted on its fuel tank. Through the small hole in the end of the furnace an atomizer sprays oil into the flame which is maintained by the burning of this spray. The atomizer, or burner, is connected to its fuel tank and to a compressed air tank which supplies furnaces with air at a moderate pressure.

Fig. 236.   Rivet Heater.

Fig. 236. - Rivet Heater.