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 100
Fig. 70a. … Fig. 70b. short at the pole tips, and Fig. job shows the fringe of magneticfield which always exists beyond the pole tips. Figure 71 is amore or less fanciful drawing which is intended to show how thepositive and negative sets of the electromotive-force values areunlike when the north poles of the…
Dynamos · Electric motors
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.