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- · New York, T. Audel · leaf 200
Figs. 1,448 and 1,449.—Westinghouse laminated hub and laminated pole piece for revolvingfield having squirrel cage winding. Thin steel is used for the laminations of both huband pole piece; these are assembled and firmly riveted together under hydraulic pressureThe laminations are of the same… … Tl.b 1 ISO) 1 162 Triumph pole pieces. These consist oi laminated punching? securely clamj« •: 1 end plates. The laminations are s.iaped with polar hori. shown, and which serve to keep the field coils securely wedged in position. In some designs the horns are separate. The two holes in each pole…
Electrical engineering
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