Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 444
he proper one commuted at thebrushes. Or on the other hand we may wind the primaryon the exterior ring, and the secondary drum-fashion on thecenter-piece {Fig. 5), or vice versa {Figs. 6 and 7). In all thesecases both cores are fixed, and only the brushes x y rotatedon their spindle by the bar… … Fig. I. Fig. 2. fig-3-
Science · Technology · Meteorology · Patents
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-321-196.webp)
