Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 40
ntly, oppose eaeh other,but whenever an external conductor is provided between them,they unite and produce a current. In practice, the ring consists of a bundle of soft iron wire, audthe helix is made in sections, each one of which is connected toits neighbor, and also to a strip of brass forming… … Fij. 13. springs, and thus make connection with the external conductor.The peculiar construction of the ring will be seen by referring tofig. 13, where several sections of the wire B B are shown uponthe ring A. The figure also shows the way in which connectionis made with the brass strips R A…
Electrical engineering
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