Blower
The form of bellows shown in Fig. 35 is known as the Fletcher Foot-Blower, and is applicable wherever an air-blast is required, either for the blow-pipe or for operating melting furnaces. It is simple compact, portable and powerful; giving a steady blast of air at a pressure of from one to nearly two pounds to the inch. Two patterns of this blower are made, one with the air reservoir on the top of the bellows, and the other like the one shown in the illustration. The latter form is preferable, as it obviates the risk of injury to the rubber reservoir or its net, by dropping tools or corrosive liquids upon them.