Electric interlocking with panel type control machine and all relay circuits installed at Philadelphia, Pa, which with certain track changes, consolidated control of layouts formerly handled by two mechanical interlockings, one on drawbridge over Schuylkill river, and other at Eastwick; control and indication of remote facilities.


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    Title :

    New drawbridge interlocking on Baltimore and Ohio


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1948


    Size :

    5 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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