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 66
Fig. 36. THE DYNAMO AND THE TRANSFORMER. 55 enlarged area of pole face is obtained by the use of an open frameof cast iron shown in Fig. 32, which is called the pole shoe. Thispole shoe is put in place and fixed by bolts after the field coilshave been slipped into position on the projecting field…
Dynamos · Electric motors
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