Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 256
that all thecarbons should be, as nearly as possible, of the same size and ofuniform resistance. It is very difficult to secure uniformity ofresistance by carbonizing in the ordinary way, as the carbonsproduced from blanks of the same size and material differwidely in resistance. By Mr. Maxims… … ment increases the mass of the conductor, it correspondinglyreduces its resistance, and the process of treatment is arrestedwith each carbon, when the standard resistance has been reached.In Fig. 125 we show a device, designed by Mr. Maxim, forautomatically cutting the carbon out of circuit at the…
Electrical engineering
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