An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 253
Fig. 157. / // Diagrams to illustrate the principle of the interpole generator. at the brushes. This shifting of the brushes, however, is notnecessary in modern machines because of the use of interpoles.These small interpoles or commutating poles (Fig. 157) areplaced between the main poles and are…
Electricity · Magnetism
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