Woodworking – Special-work machine – Tree felling
Patent
1974-07-26
1976-01-20
McGee, Travis S.
Woodworking
Special-work machine
Tree felling
144 2Z, 144309AC, 294106, A01G 2308
Patent
active
039331881
ABSTRACT:
An apparatus for severing the root system of a tree from the tree trunk during tree felling comprising a grapple mechanism for gripping the tree which, in operation, is clamped to the tree trunk and a cutting part suspended from the gripping mechanism for cutting the roots. The cutting part includes cutting knives arranged to encompass the tree trunk and movably mounted relative to the gripping part for cutting the roots. The power mechanism interconnecting the tree gripping mechanism and the tree cutting part moves the latter relative to the gripping mechanism in a direction longitudinally of the tree during a severing operation. The device may also be used to sever limbs from trees.
REFERENCES:
patent: 3363929 (1968-01-01), Nelson
patent: 3536113 (1970-10-01), Sutherland
patent: 3631995 (1972-01-01), Jones
patent: 3738401 (1973-06-01), Wiklund et al.
patent: 3763905 (1973-10-01), Hamilton et al.
patent: 3797539 (1974-03-01), Moser et al.
patent: 3822730 (1974-07-01), Hultdin et al.
patent: 3851686 (1974-12-01), Hultdin et al.
Bray W. D.
Johnson Stanley E.
Logging Development Corporation
McGee Travis S.
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