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 126
to protect it from oxidation. Circuit Breaker, Pendulum. A circuit breaker in which a pendulum in its swingmakes and breaks a contact. It may be keptin motion by clockwork, or by an electro-mag-net, attracting intermittently an armature at-tached to its rod, the magnet circuit beingopened and… … 122 STANDARD ELECTRICAL DICTIONARY. ment is necessarily delicate, owing to the limited amplitude of themotion of the fork. The fork is kept in vibration sometimes byan electro-magnet, which is excited as the circuit is closed by thefork. One leg of the fork acts as the armature of the magnet,and is…
Electricity
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