A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 428
Fig. 446. Portelectric Cay. source as the carrier was drawn forward. Aspeed 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 firmly-pressed together. If, now, a disruptive dischargeis passed through from one sheet of tin-foil to theother, the gold leaf…
Electricity · Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Recueil de testes de caractère et de charges / dessinées par Leonard de Vinci ... et gravées par M. le C. de C. [i.e. le comte de Caylus]. (1730)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b30417880-91-2.webp)
