A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 426
Fig. 446. Portelectric Car. source as the carrier was drawn forward. A.speed of about 34 miles an hour was reached. A section of the track is shown in Fig. 445, andthe shape and general structure of the carrier inFig. 446. Portrait, Electric A portrait formed on paper by the electric… … Fig. 447. Electric Portrait. paper stencil, and a sheet of paper on the otherside ; sheets of tin-foil are then placed on the out-side, as shown in Fig. 447, and the whole firmlypressed together. If, now, a disruptive dischargeis passed through from one sheet of tin-foil to theother, the gold leaf…
Electricity · Electrical engineering
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