The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 97
ss against the commutator surface. Brush, Third. A third brush is sometimes provided in a dyna-mo for regulating purposes. Applied to a series machine it adjoins <>ne of the regular brushes and delivers its current to a resistance, to whose further end the regular circuit is connected. By a… … Fig. TlUKI- I : HION. It is to be distinguished from the pilot brash used for determining the characteristic of the commutator, although based on the same general principles. Brush, Wire Gauze. A collecting or commutator brush for a dynamo or motor, which brush is made of wire- gauze rolled upand…
Electricity
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