A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 125
Fig. if 6. Two-part Commutator. In action, the commutator is subject to wearfrom the friction of the brushes, and the burningaction of destructive sparks. The commutator A
Electricity · Electrical engineering
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