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 66
Figs. 3,862 to 3,865.—The Economic calcium light; makes its own gas automatically fromoxone and ether. Fig. 3,863 shows section view of interior of outfit. The parts are: M,main tank; L, cover for tank; G, gas bell or chamber; C, container for holding charge otoxone; R, wire rod for supporting…
Electrical engineering
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