Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 326
ntinuity of the arc ;the little cylindrical pimple then became much smaller in size,and the end of the upper carbon spread out still more. If, now,the lower carbon was still further enlarged, so that it had a sec-tional area sixty-four times as large as that of the upper carbon, THE WERDEKMANN… … Fig. 161. had previously tended to spread out, now took a pointed form.When actual contact took place the little pimple of carbon dis-appeared, and a brilliant light was given out by the incandes-cent point. Nos. 6, 6, and 7 of Fig. 162 show what occurred when thelarger carbon formed the positive…
Electrical engineering
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