Method of tree felling

Details Method of tree felling Method of tree felling

1975-10-02

1976-07-27

Simpson, Othell M.

Woodworking

Special-work machine

Tree felling

144 34R, 144309AC, A01G 2308

Patent

active

039714225

ABSTRACT:
A method for felling large trees including the conventional steps of cutting an undercut and a backcut so as to leave a quantity of intact holding wood intermediate the inner extremes of the undercut and the backcut. Kerfs are cut inwardly into the tree from the undercut surfaces to remove a quantity of holding wood thereby causing calculated weakening of the wood to assure a relatively clean line of severance between the stump and the log butt. The kerfs may be varied in spacing from one another for tree aiming purposes. Side cuts may be made into the holding wood transversely of the kerfs extending inwardly from the undercut for the purpose of imparting additional flexibility to the holding wood to permit controlled felling of the tree to a desired lay as well as to reduce the possibility of forcefully extracting a root from the ground with consequent risks.

REFERENCES:
patent: 90834 (1869-06-01), Fory
patent: 1163155 (1915-12-01), Johnson
patent: 2006241 (1935-06-01), Hutchinson

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