Yard lead-out switch, formerly in plant, now controlled from yardmaster's office; saves 36% on cost; signals are Style-B semaphore. (See also Ry Age v 96 n 10 Mar 1934 p 347-8)
Automatic plant replaces mechanical interlocking on Alton and Southern
Ry Signaling
Railway Signaling ; 27 , n 4
1934
2 pages
Article (Journal)
English
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Automatic plant replaces mechanical interlocking on Alton and Southern
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