Automatic track circuit signaling and power interlocking equipment in service on lines of London Passenger Transport Board includes relays of several kinds, amounting at present to some 13,000; methods and equipment used in inspecting and maintaining relays are illustrated and described.


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    Title :

    Maintenance and overhaul of signalling relays


    Additional title:

    Ry Gaz


    Published in:

    Railway Gazette ; 85 , n 12


    Publication date :

    1946


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English