Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 129
an armature and pawl operates a ratchet wheel. This wheel is rigidly attached to thepaper platen shaft, so that for each operation of the magnet the shaft is rotated. Therotation moves the paper up the correct distance to space the printing for a new line.As in the case of the other units, the line… … JOCKEY LINE FEEP MAGNETS /AP^ATIIPF Fig. 12 Page 11 Section 5 Multiplex System 263-C 47. When it is desired to write figures or characters which are in the upper case,the shift unit, Figure 13, must be operated. This unit is located in such a position thatan extension of the armature of the shift…
Telegraph
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