Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 178
successful, gave sufficient encourage-ment to warrant further investigation in the same direction.After the trial of a number of other substances, it was deter-mined that paper, without lampblack or other application, was Edisons incandescent system. 163 best adapted to the purpose. Accordingly, in… … Fig. 83. the two figures, it will be observed that the paper shrinks enor-mously during the process of carbonization. The manufacture of these little carbon horseshoes, as they arecalled, was very simple. The paper blanks, after being cut bydies in the form shown in Fig. 82, were subjected to heat…
Electrical engineering
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