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
holders, feed. stop, plunger disc and electrode guide frame. The electrodes of these lamps are placed, usually, in a convey-ing position pointing downward, and the arc is sprung by meansof a plunger disc or other suitable device operated by a seriesmagnet which forces the carbons apart. As the… … TERMINALS ^SWITCH SERIES MAGNE resjstance:-Us §=^ ~~feg g^ RESTINGCARBON MAGNETICBLOW-OUTCOIL
Electrical engineering
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