Remotely controlled power interlocking installed by Knoxville, Tenn, includes crossing of two single track lines with special provisions to facilitate switching; portable interlocking control machine has 24 levers, for operation of 6 signals, 5 derails and 1 switch; special features for switching; general principles of remote control; local field control; circuit arrangements; etc.
Remote-control interlocking on Louisville and Nashville
Ry Signaling
Railway Signaling ; 33 , n 7
1940
Article (Journal)
English
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Remote control replaces mechanical interlocking on Louisville and Nashville
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