The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 222
its current through the brushes, andpressed when braking action is required against the face of themoving wheel. The same arrange-ment, it can be seen, may apply to aclutch. Electro=magnet, Bar. A straightbar of iron surrounded with a mag-netizing coil of wire. Bar electro-magnets are not much…
Electricity
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