At Delray, Mich, railroad crossings and junctions involve tracks of New York Central, Michigan Central, Wabash and Pere Marquette; interlocking maintained by Pere Marquette; mechanical interlocking was replaced with electrochemical plants, including new electrochemical machine in new tower; restrictions in use of new insulated wires and cables led to use of mechanical levers for switches and crossovers with electric levers for signals.


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    Title :

    War-time replacement of interlocking on Pere Marquette


    Additional title:

    Ry Signaling


    Published in:

    Publication date :

    1946


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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