Due to radical changes in coal-mining methods, old standard mine-car designs are becoming obsolete; types are wood, composite, and all-steel car; replacement of swinging door by lifting endgate; tight-end composite car; types for rotary dump; difficult to obtain suitable lumber for car bottoms; examples of all-steel cars; betterment is needed in type of wheels used on cars; mine-transportation methods are passing through same cycle of development as have steam railroads.


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    Title :

    Better and bigger cars needed in modern mines


    Additional title:

    Coal Age


    Contributors:

    Published in:

    Coal Age ; 35 , n 11


    Publication date :

    1930


    Size :

    5 pages


    Remarks:

    7 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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