At Pekin, Ill, Peoria and Pekin Union Railroad has replaced 76-lever mechanical plant by installing electric interlocking in which controls are of all-relay type, interlocking being accomplished by interconnections of circuits so that control machine utilizes miniature type levers with no mechanical locking or electric lever locks. (see also Ry Age v 114 n 18 May 1 1943 p 856-8)
All-relay interlocking replaces mechanical plant
Ry Signaling
Railway Signaling ; 36 , n 3
1943
8 pages
Article (Journal)
English
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