Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 41
essrs. Wallato c^ Sons, of Ansonia, Conn. Thisfirm bei^an tlie (.onstruction of tliose nuichines for the market inthe sj)ring of 1875, and sinee that time tliei-c is hardly any formof mairncto machine tliat lias not been built and tested at theirworks. The machine which they finally decided upon… … Fig. 14. This machine, which has been somewhat modified and im-proved upon from time to time by Mr. William Wallace, is, inmany resj)ects, unlike any of the other forms that we have con-sidered. It consists of two large electro-magnets, an armature,two commutators and four brushes, the latter…
Electrical engineering
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