General commentary; changes have been greater in mechanical haulage than in hand tramming; first step toward mechanical haulage is frequently use of small electric storage battery locomotive for hauling 1-ton cars coupled together with chain links; in details of locomotive construction there have been many changes; size of cars has increased; importance of good track.


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    Title :

    Changing standards in underground transport


    Additional title:

    Min Congress J


    Contributors:
    Eaton, L. (author)

    Published in:

    Mining Congress Journal ; 23 , n 9 ; p 50-51


    Publication date :

    1937


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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