Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 449
Fig. 4,472.—Air gas torch for brazing. <K: … GA50L1NLFILLIKG PLUG Fig. 4,473— Gasoline torch with rests for holding soldering bit. In construction A is ahand air pump, which may have automatic, or hand operated valve; B is the reservoircontaining gasoline and compressed air, the latter being furnished by the pump. A valveV, prevents leakage…
Electrical engineering
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