Woodworking – Special-work machine – Combined
Patent
1979-09-24
1981-06-16
Bray, W. D.
Woodworking
Special-work machine
Combined
144 2Z, 144 34R, 144309AC, A01G 2308
Patent
active
042731682
ABSTRACT:
An apparatus and method for converting standing trees to bolt length logs in which a tree-severing unit is mounted on a vehicle having an upright mast assembly extending upwardly from the severing unit. Tree-gripping and feeding assemblies are mounted on the mast and are operable to grip a severed tree and drive it downwardly. A tree cutoff unit is located below the gripping and feeding assemblies and is positioned above the severing unit a predetermined distance corresponding to the bolt length. Tree-delivery assemblies support and drive a severed tree rearwardly into engagement with the cutoff unit to first remove a bolt log from the lower end of the severed tree. The gripping and feeding assemblies are then operated to drive the remainder of the tree downwardly past a tree cutoff means on the mast assembly which cuts additional bolt length logs from the lower end of the tree. A conveyor removes the logs to a storage area on the vehicle.
REFERENCES:
patent: 3140736 (1964-07-01), Propst
patent: 3974866 (1976-08-01), Saarenketo
patent: 3979075 (1976-09-01), Heron
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