American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 482
erican cities. It is a two wire system. Itdiffers somewhat from those already described in several important respects. Forinstance, the type-wheel shaft is rotated by means of a push and pull motor, EDISON OR UNIVERSAL TICKER. 407 cperated by pulsatory, straight currents, set up by the transmitter.… … UNIVERSAL OR EDISON STOCK TICKER THEORY. A portion of the transmitter t at a central office co and of a ticker at abranch office, with the parts somewhat separated and enlarged, for the purpose of il-lustration, are shown in Fig. 306; parts unnecessary to the description being omitted. The…
Telegraph
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