Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 106
k promptlyand stop the guide shaft. But if the master bank has on the idle con-tact a low resistance path to negative battery, the latter acts like a shunton the start relay, making it temporarily slow to release. It will not fallback quickly enough, thus permitting the shaft to pass on beyond. The… … Outgoing 5econday L meswi ten j ParfofRepeater \ RkeJ 85M ^ Hold ,„*t Co ,lhf •HII- ijir1 Cham Relay I Xym&fbrthisTrunk 1 Hlr+
Telephone
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