Total of 57 switches, 64 crossovers and 197 signals, on 9 road mi, throughout 11 zones are controlled from one central machine using new form of polar code control; interlocking control machine described. (see also Ry Age v 116 n 4 Jan 22 1944 p 232-5)
Canadian national installs new type of all-relay interlocking at Montreal
Ry Signaling
Railway Signaling ; 37 , Part 1, n 1
1944
9 pages
Aufsatz (Zeitschrift)
Englisch
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Canadian national installs new type of all-relay interlocking at Montreal
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