Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 157
every time the selector drum operates,connects battery to the reset magnet the plunger rod of which presses against the resetarmature and resets the trip rods into engagement with their triggers (Fig. 5). 14. At the same time that battery was connected to the drum magnet it was con-nected also to… … uj 1 T— ,- : iZZ 2 i?i-oKCks uJuJ uJ^O COXX It ■* < DC tJO Page 5 Section 5-A Multiplex System 263-C
Telegraph
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