Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 568
hen the bobbinrotates. The parts of the iron cylinder left uncovered form thepolar ends of the coil. The bobbin revolves on the axis of thecylinder, and in a semi-cylindrical cavity formed in the ironarmature m n, fitted to the two poles of the inducing magnet M,as shown in fig. 847. The two ends… … Mg. 349. The metal disk J is fixed upon the top of a battery of perma-nent magnets G Gr, G G, which are screwed to an upright softiron plate n (fig. 350). Between the poles of this system of per-manent magnets is placed a cylinder of soft iron, E, which servesas the keeper or armature of all the…
Electrical engineering
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