Specifications for the multiplex printing telegraph system : theory and operation (1920)
Western Union Telegraph Company · [New York?] : The Company · leaf 25
shown in Figure 14 one combination or letter may be sentand one received simultaneously for each revolution of the brush arms. As alreadystated we may connect more than one of these groups or channels to the distributorrings until we have divided the entire ring into segments, every five new… … Fig. 14 33. Thus far we have not mentioned the manner in which the sending keys are operated,neither have we said anything about the way in which the five selecting magnets serveto translate the five received impulses into the letter or function represented by the com-bination received. These steps…
Telegraph
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