Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 162
thebars to the rings, and being insulated from all the rings exceptthe ones they are intended to connect with the bars. The ringsconnect the bars in such manner that the connections are sym-metrical at every position of the machine. The rings are com-plete, and extend in both directions from and to… … Fig. 12. parts, each of which parts passes through one half of the radialbars and combines with the other part at the positive commu-tator brush. In this manner all the bars are continually kept incircuit, and a current is generated having an electro-motive forcedue to one half the length of all…
Electrical engineering
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