American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 410
dvantage of this method is that a sendingoperator has no means of knowing when he is being broken by the receiving operatoruntil he switches in the polarized relay. Another method of availing of these pulsatory signals is that shown in Fig.257, in which the Morse neutral relay, NR, is employed, the… … SYNCHRONOUS MULTIPLEX SYSTEM ARKANGED FOR * NEUTRAL RELAYS. arrangement of connections on the armature levers of f f. Both ends, x, y, of thecircuit, and the apparatus for one desk, are shown in the figure, also a few segmentsof the disc at each end. The trailers t t , are assumed to be passing…
Telegraph
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