Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 241
No. 351,544, of October 26, 1886.^From a patent to Thomson, No. 459,423, of September 15, 1891. 230 Colles: [J. F. I., pendent series-wound field magnets acting upon each core.In the lower figure on the right, it is the motor-coil whichhas a series-wound field; on the left, the generator or… … Plate XI.—Compound dynamotors of Walter (1886) and Thomson (1891). or series-wound dynamo in series with the secondary coilon the same shaft. A variation of this is shown in a patentto Burke,^ issued in 1894, the booster being in series withthe j/wtor or primary coils, and excited by shunt…
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-electricengineer04inte-176-62.webp)
