Simplicity and facility of operation are features of large electric interlocking plant recently installed by Cleveland, Cincinnati, Chicago and St. Louis at Linndale, Ohio; reason for using new type of control; special control system; signal control circuits. (See also Ry. Age vol. 89, no. 7, Aug. 16, 1930 pp. 317-319, 3 figs)
Big four installs simplified interlocking with no mechanical locking
Ry. Signaling
Railway Signaling ; 23 , n 9
1930
4 pages
10 Figs.
Article (Journal)
English
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Big four installs simplified interlocking with no mechanical locking
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