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 67
s just beneath its surface. However, since all eddy currentsthat circle round, as those sketched in fig. 1,738, are not so efficient intheir mechanical effect as currents confined to proper paths, and as theyconsume power and spend it in heating effects, the core was thenconstructed with… … ^VENTILATINGDUCT& Pigs. 1.7.30 and 1.7.51.—Built up core construction with discs punched in one piece. Thespider proper consists of a hub provided with four radial arms, which fit the inner diameterof the disc. The hub is bored out so that it fits very tightly on the shaft, and a key isprovided…
Electrical engineering
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