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 191
,845 accomplished by insulating surfaces, bearing against the springcontacts at the desired points. This type of controller is oneof the most usual forms for motor vehicle purposes. As is obvious, it is possible to so arrange the electrical connections onthe controller surfaces, that by proper… … 69240, Figs. 4,094 and 4,095.—Baker R and L selective dual controller, control handles, resistanceand motor brake. General care: keep the plates 9,522-B and 9,525-B on the face ofthe controller and the shoes 7,513-A on the movable arm clean and free from burned andrough edges. The contact plates…
Electrical engineering
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