Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 155
Li [ II ea p REL LSE*Y. [ ] p *INT RELA (. 4.B PULSE RELAY. 6. Upon the operation of any of the selecting magnets its plunger is driven forward and disengages its trigger from a trip rod. Each plunger controls a trigger (Fig. 3). Page 2 Section 5-A Multiplex System 263-C TRIP rod-LEVER t SELECTING… … Fig. 3 The spring G, which has been held compressed, now moves the trip rod forward, its collarstriking against the reset armature, closing the operating or sixth pulse contacts. Theend of all trip rods except the fourth strike against a short lever E which is pinned to ashaft D (Fig. 5). The…
Telegraph
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