All-relay type interlocking installed at Olivers, near South Bend, Ind, by Grand Trunk Western, to protect crossing with single track branch line of New York Central as well as to protect crossing of this track with another single track line of NYC; control machine, trap circuit, and interlocking power supply and battery arrangement described; track and signal diagram of interlocking presented.
Interlocking on grand trunk
Ry Signaling
Railway Signaling ; 39 , n 9
1946
3 pages
Article (Journal)
English
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