Installation by Boston and Albany Railroad at its new station in Springfield, Mass., centralizes control of all switches and signals; interlocking machine consists of 248-lever frame with 185 working levers controlling 77 signals, 33 single switches, 17 movable-point frogs, 34 double slip switches, 1 check lock lever and 1 derail; switches; signals; track circuits; track and signal indicator; telephone service; power supply.


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    Title :

    Electric interlocking system


    Additional title:

    Railroads (ASME Trans)


    Contributors:


    Publication date :

    1928


    Size :

    5 pages


    Remarks:

    9 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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