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 106
mmutator drum. The drum is connected by radial arms to the commutator sleevewhich is mounted and keyed on the armature hub extension. 318 HAWKINS ELECTRICITY Fig. 345 shows the reaction type of brush holder, in which themovement of the brush is constrained in one direction by thesurface of a part… … Fig. 347.—Western Electric brush holder. This holder consists of a rugged iron casting,elliptical in section, and supported from the commutator end bearing bracket in such amanner as to provide for the shifting of the brushes. A handle attached to the yoke aidsin this shifting and a thumb nut on…
Electrical engineering
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