System installed on line between Wilmington, Delaware and Washington, D C, which controls wayside automatic signals as well as cab signals without use of line wires. (See also Ry Signaling v 28 n 5 May 1935 p 245-50 and 252)


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    Title :

    Coded track-circuit signaling on Pennsylvania


    Additional title:

    Ry Age


    Published in:

    Railway Age ; 99 , n 7


    Publication date :

    1935


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Coded track-circuit signaling on Pennsylvania

    Engineering Index Backfile | 1935


    Coded track circuits

    Engineering Index Backfile | 1942



    Coded Track Marker Light

    H. Larrimore | NTIS | 1972


    Track-circuit signaling on electrified roads

    Howard, L. Frederic | Engineering Index Backfile | 1907