American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 110
ans of which, anda pin plug, any of the Avires may be grounded without battery. This strip is alsoconnected throiio-h to both sections e w. WAY OFFICE SWrrCH BOARD. A form of switch much used in way offices, as distinguished from terminal ormain offices, is shown in Fig. 61. The wires are, as a… … WAY OFFICE SWITCH. desired, or the line may be caused to pass through the switch only, by inserting a pinin the corresponding aperture, a, between the two vertical bars at the lower end of theboard. The vertical row of binding posts on the right are connected behind theboard to the notched discs,…
Telegraph
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