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 17
^^^ Fig. 3. Electro-magketicCar Wheel. … Fig. 4. Electro-magnetic FrictionGear. ment the two wheels are surrounded by a magnetizing coil, underwhose induction each attracts the other, developing high adherencebetween their peripheries. Admiralty Rule of Heating. The British Admiralty specifica-tions for the permissible heating of dynamos.…
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