Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 183
rit has been fitted on, the top of the ebonite plug is turnedoff, so as to present a smooth continuous surface, slightlyconvex. Fine platinum wires welded lo E and E serve to connect 170 ELECTHICITY IN MODERN LIFE. them with the terminals of the circuit. C is an ebonite cupwhich supports the plug,… … VOTTB (1 b5~ Fig. 56. respectively, by means of black india-rubber tubing. Twoperforated ebonite discs are fitted within the cylinder, andthe space between them is tightly packed with coarsecotton, which has been freed from grease by soaking in asolution of caustic potash, and been thoroughly…
Electric industries · Electricity
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