Two remote-control interlockings, together effecting immediate payroll saving of $10,348 in operating expenses annually, recently installed by signal department forces of Chicago, Milwaukee, St. Paul and Pacific, near Chicago; single-line diagram. (See also Ry Signalling v 26 n 2 Feb 1933 p 29-31)
Consolidated interlockings
Ry Age
Railway Age ; 94 , n 7
1933
2 pages
Article (Journal)
English
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Engineering Index Backfile | 1933
Three interlockings consolidated
Engineering Index Backfile | 1928
Three interlockings consolidated
Engineering Index Backfile | 1928
Consolidated control of three interlockings
Engineering Index Backfile | 1952
Consolidated control of three interlockings
Engineering Index Backfile | 1952