Description of all relay electric interlocking plant controlled by panel type machine, installed on double track drawbridge over Calumet River near 92nd St in South Chicago, Ill; use of code line control equipment as means of minimizing number of wires to be extended between movable section of bridge and shore piers.


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    Title :

    Drawbridge interlocking on Elgin, Joliet and Eastern


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1947


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






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