Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 236
peed at constant pressure, the other vice versa, inthe same way as if they were wholly independent. It is Nos. 512,820 of Jan. 16, 1894, and 524,852, of Aug. 21, 1894. Mar., 1901.] Rotary Transformers. 225 sometimes desirable, however, in such a case, to have allthe regulation performed by one… … Pl,ATE IX.—Rices method of regulation for motor-generators. 1883. patent to Rice* of 1883, shows three such couples, in each ofwhich all the exciting current is taken from the primarycircuit. In the upper couple, both fields are provided withcompounding coils in series with the motor armature, one…
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