Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 232
78,418, May 29, 1883.No. 379,073, March 6, 1888. Mar., 1901.] Rotary Tratisformers. 221 a patent issued in 1888 (Plate VI). Here we have twoGramme rings in juxtaposition {Fig. 2); or one within theother {Fig. j); or a ring surrounding a drum-wound core, asin Fig. 5. The primary is wound on one, the… … Fiz 2. Fi^.f ^1 r- ? Plate VI.—Jehls inductorium. 1888. and J the rings are stationary, and the individual coils areconnected through slip-rings A B, to appropriate commenta-tors a b, which are rotated by an independent source ofpower, as shown in Fig. i; whereas in Fig. 5 the inductionrings are…
Science · Technology · Meteorology · Patents
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