At 55th St. near Cicero avenue in Chicago, Indiana Harbor Belt Railroad has installed all-electric interlocking with entrance-exit, "N-X," control, at track layout involving junctions and crossings with Belt Railway of Chicago; plug in, quick detachable relays, flame proof wiring, new type sheet metal instrument cases and special protection for cables, are features of modern construction on plant.
Modern entrance-exit interlocking replaces mechanical plant on Indiana Harbor Belt
Ry Signaling
Railway Signaling ; 34 , n 5
1941
9 pages
Article (Journal)
English
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Modern entrance-exit interlocking replaces mechanical plant on Indiana harbor belt
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