Portable unit described uses hydraulic drive to turn 12 mm increment borer into trees to obtain larger samples for wood studies; borer uses hydraulic drive principle and consists of small hydraulic motor as increment borer remote driver, connected to hydraulic pump through 3/8 in. × 20 ft pressure hoses; pump is driven by lightweight 4-hp gasoline engine; unit is mounted on cart fabricated from 1/2 in. conduit, angle iron, and two surrey wheels. (14613)


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    Titel :

    Powered drive for large increment borers


    Weitere Titelangaben:

    J Forest


    Beteiligte:
    Echols, R.M. (Autor:in)

    Erschienen in:

    Journal of Forestry ; 67 , n 2 ; p 123-125


    Erscheinungsdatum :

    1969


    Format / Umfang :

    3 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Notes on life of marine borers

    Clapp, W.F. | Engineering Index Backfile | 1935


    The destructive action of Marine Borers

    Hermann von Schrenk | Engineering Index Backfile | 1923


    Open-face borers in Italian Alps

    Scolari, F. | Tema Archiv | 1995


    Marine borers from wood preserver's standpoint

    Shackell, L.F. | Engineering Index Backfile | 1916


    Protection of harbour piles and woodwork against borers

    Hardy, E. | Engineering Index Backfile | 1942