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 237
s used in connectionwith the mechanical brake, the effectiveness of the latter is increasedsince it is not called upon to arrest a full powered motor, but one whichhas already been deprived of a portion of its energy by having a re-sistance shunted across its armature terminals. The Try Out… … PLUNGERROLLERS WEDGE BRAKE SLEEVE T-P7777777777777777. Fig. 4,157.—Typical arrangement of brake magnet having a wedge acting between rollers torelease the brake. that every part of the installation is operating properly. In this waythe car can be run up and down the shaft several times each…
Electrical engineering
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