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 359
ADJUSTMENTCOIL SHUNT WALKING BEAM … SERIESOIL Figs. 3,363 and 3,364.—Fort Wayne series circuit differential control enclosed direct currentarc lamp. The series and shunt coils are wound on separate cores to gain additionalradiating surface.^ The walking beam of the lamp when in operation lies practically ina horizontal position…
Electrical engineering
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