Interlocking replaced, protection extended and train operation improved on James River line of Chesapeake and Ohio extending from Richmond, Va, to Clifton Forge, distance of 229 mi; features of mechanical facing-point lock; track construction; special signals. (See also Ry Age v 95 n 9 Aug 26 1933 p 310-2)
Manual-block installation includes spring switch on C. and O.
Ry Signaling
Railway Signaling ; 26 , n 8
1933
Article (Journal)
English
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Manual-block installation includes spring switch on C. and O.
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