Electropneumatic switch operating mechanism; circuit controller for drawbridges; requisites for mechanically locking levers of interlocking machines; interlocking at drawbridges for protection of trains; electro-mechanical interlocking machine; methods of protecting railroads crossing at grade where traffic conditions do not justify interlocking plant.


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    Title :

    Committee II -- Interlocking


    Additional title:

    Assn Am Railroads -- Proc (Signal Sec)



    Publication date :

    1938


    Size :

    18 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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