Tunzelmann, George William von, 1856- · New York, Scribner & Welford · leaf 139
ilar in principle tothe well-known stylo-graphic pen, and isattached, as shown, tothe upper extremityof the armature rod.The coils of one ofthe electro-magnets ofthe receiver form aportion of the cir-Fi.i;- J**- cuit containing one of the sets of carbon discs, while the coils of thesecond… … OVERLAND TELEGRAPHS. 127 corresponding continuous variation in the attraction exertedby the two electro-magnets respectively upon their commonarmature, and in this manner the rod carrying the penis made to move in a path exactly similar to that of thetransmitting rod. In the original form of the…
Electric industries · Electricity
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