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 365
TERMINALS RESISTANCE SERIESCOIL SERIESCOIL UPPERGARBSii LOWERCARBON. SIDEROD UPPER CARBON SHEATHGAS CAP INNER GLOBESTIRRUP OWER CARBONCLAMP … Figs. 3,375 and 3,376.—Westinghouse parallel circuit, series control direct current enclosedarc lamp. There are two series coils, a U shaped soft iron rod forming the plungers. Thecoil spools are of brass and provided with suitable projections by which they are attachedto the central tube. The…
Electrical engineering
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