Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 586
n which the coils of copperwire are wound, is fastened; the whole being firmly keyed tothe shaft, k. This ring, which is composed of annealed iron wire,and insulated in the process of manufacture, is in direct contactwith the gun-metal spider, the object of this being to absorb anyheat that may be… … Fig. 364. The small caps, I ?, held by the screws, m w, hold the iron ringof the armature in position. The wooden strip, ??, with the space0, of which there is one in each arm, prevents the generation ofcurrents in the caps, 11, and also serves as a means of balancingthe armature. The advantage of…
Electrical engineering
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