By Geo. Richards, before the New England Railroad Club. Discusses the development of switches and frogs, and gives the qualities of a good safety switch.


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    Title :

    Railroad track safety switches and frogs


    Additional title:

    Mast Mech


    Contributors:


    Publication date :

    1888


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


    Railroad track frogs and switches

    Ellis, W.F. | Engineering Index Backfile | 1891


    Railroad track frogs and switches

    Engineering Index Backfile | 1888


    Railroad track frogs and switches

    Ellis, W.F. | Engineering Index Backfile | 1888


    Railroad track frogs and switches

    Engineering Index Backfile | 1888


    Railroad track frogs and switches

    Ellis, W.F. | Engineering Index Backfile | 1891