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 193
INSTALLATION 405 grip. The drive- is thrown out of gear by slightly moving themachine on its sliding base. In construction, the friction maybe increased by making one wheel of the pair of wood, com-pressed paper, or leather. Electrical Connections.—Circuits for dynamos and motorsshould be carefully… … Fig. 454.—Sling for handling armatures. In raising an armature it should be supported bythe shaft to avoid any strain on the armature body or commutator. Ques. What may be said with respect to exposed andconcealed wiring? Ans. Exposed wiring is cheap and accessible; a short circuitor ground is…
Electrical engineering
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