American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 497
n the operation of this system are shown, as ar- 420 AMERICAN TELEGRAPHY. ranged in practice, in Fig. 312, in which t represents the transmitter, which consists ofa key-board, and mechanism controlled thereby to actuate a circuit breaker pc ; areceiver e, wliich comprises an electro-magnet, or… … PHELPS motor printer. rotation of both the transmitting and receiving mechanism. Fig, 313 represents, theoretically, the electiic-motor connections and those of thetransmitter. The motor employed in this system, due to the late Mr. G. M. Phelps, ishighly ingenious and efficient, but as a…
Telegraph
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten02unit-498-213.webp)
