Chicago Great Western and Chicago and North Western effect total net return of 23% on investment of $10,500; smashboards required; circuits utilize interlocking relays for directional control; control relays of interlocking type; operating features.


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    Title :

    Automatic interlocking replaces mechanical plant


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1932


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Automatic plant replaces mechanical interlocking

    Engineering Index Backfile | 1937


    Automatic interlocking replaces mechanical

    Engineering Index Backfile | 1936




    All-relay plant replaces mechanical interlocking

    Engineering Index Backfile | 1938