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 377
TERMINALS ^SWITCH SERIES MAGNE resjstance:-Us §=^ ~~feg g^ RESTINGCARBON MAGNETICBLOW-OUTCOIL … COPPERSTOP CUT-OUT Pig. 3,393—External view and diagram of Helios flaming arc lamp showing mechanismand diagram of connections. As here shown, the top casting A is of iron, andis provided with an insulated hanger B, two binding posts C C, with screws tosecure the line wires, and a hand switch for…
Electrical engineering
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