Interlocking plant at Rio Tinto described, is of relay switching type with central press button operation and operated entirely electrically without dependence on any mechanical device; plant comprises ten signals and about same number of point machines.


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    Title :

    Railway interlocking plant in Portugal


    Additional title:

    Ericcson Rev


    Contributors:
    Almgren, N. (author)

    Published in:

    Publication date :

    1939


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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