D-c vibrating highway crossing bell; d-c coded track-circuit control system; methods of effecting economy and energy consumed in operation of track, and of signal circuits. (See also - discussion p 451-66) (mtg Mar 11 and 12 1935)


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    Title :

    Committee IV -- Direct current automatic block signaling


    Additional title:

    Assn Am Railroads -- Proc (Signal Sec)



    Publication date :

    1934


    Size :

    34 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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    Engineering Index Backfile | 1939


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    Engineering Index Backfile | 1948


    Committee IV -- Automatic block signaling

    Engineering Index Backfile | 1936


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