Dynamos and motors; a text book for colleges and technical schools (1911)
Franklin, William S. (William Suddards), 1863-1930, Esty, William, 1868-1928 · New York The Macmillan company · leaf 67
ring RR, placedin a lathe, and the conicalseats ss are turned out. Asteel hub is provided with conical lips which fit into the seats orgrooves ss, and the ends of the hub are drawn together by boltsas shown in Fig. 38. A thin conical washer of moulded micaseparates the steel hub from the commutator… … Fig. 39. THE DYNAMO AND THE TRANSFORMER. 57 completed commutator manufactured by the General ElectricCompany. The field coils are generally wound on forms and bound solidlytogether with tape. One pair of field coils for a compound gen-
Dynamos · Electric motors
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