Woodworking – Special-work machine – Tree felling
Patent
1979-07-18
1981-08-04
Bray, W. D.
Woodworking
Special-work machine
Tree felling
83928, 144 34A, A01G 2308
Patent
active
042816939
ABSTRACT:
A feller head for a tree felling apparatus comprises a first forward projection adjacent a tree trunk receiving recess. A chain saw is mounted within the first projection and extends away from the first projection in the direction of the recess. A motor for powering the chain saw is operatively connected to the chain saw within the first projection. There is a mechanism for slidably moving the chain saw along a curved path within the projection. The path is convex in the direction of the recess.
REFERENCES:
patent: 3364960 (1968-01-01), Collins, Jr. et al.
patent: 3664391 (1972-05-01), Coffey
patent: 3672412 (1972-06-01), Albright
patent: 3683979 (1972-08-01), Peltola et al.
patent: 3726326 (1973-04-01), Coleman
patent: 3848648 (1974-11-01), Dika et al.
patent: 4013106 (1977-03-01), Albright
patent: 4161200 (1979-07-01), Albright
Bray W. D.
Forest Engineering Research Institute of Canada
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