Machine invented by Capt. A. R. Mangnall and made by Hydraulic Eng. Co., Chester, England, which is said to be built to pierce a hole 4 in. in diameter and 150 ft. long horizontally through heavy clay in half an hour. Machine is said to operate on principle of thrusting a stick into clay.


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    Titel :

    Thrust boring in earth


    Weitere Titelangaben:

    Engr


    Erschienen in:

    Engineer ; 129 , n 3354


    Erscheinungsdatum :

    1920


    Format / Umfang :

    3 pages


    Anmerkungen:

    4 Figs.


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


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