At Framingham, Mass, New York Central has installed all relay interlocking, including power switch machines and searchlight home signals, to replace three previous mechanical interlockings, in distance of about 4.5 mi; panel type machine controls 10 1-unit signals, five 2-unit signals, seven 3-unit signals, three single switches, three switches and derails, five crossovers, and one traffic lever.
NYC combines interlockings
Ry Signaling Communications
Railway Signaling and Communications ; 47 , n 11
1954
3 pages
Article (Journal)
English
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Engineering Index Backfile | 1954
C and O. combines two interlockings in centralized control
Engineering Index Backfile | 1934
C and O. combines two interlockings in centralized control
Engineering Index Backfile | 1934
Engineering Index Backfile | 1933
Engineering Index Backfile | 1933