Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 250
ount and come to rest in a new ratchet tooth. The rotationof the ratchet also causes the vertical ribbon feed spool shaft to which it is attached torotate. At the top of each shaft is fixed a ribbon spool head and keyed loosely to thelatter is a ribbon spool. Consequently, as either shaft turns the… … SHIFT LATCH PULL BAR Fig. 12 Page 18 Section 5-C Multiplex System 263-C 41. A short distance from each end of the ribbons which are used on 3-B printers islocated a reversing eyelet. When the ribbon has been unwound far enough from eitherspool the reversing eyelet at that end of the ribbon will…
Telegraph
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