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US 4,277,998 AGranted
Wood member cutting apparatus
AssigneesStoddard H. Pyle, Wayne R. Roberts
InventorGeorge L. Mayo
Life of this patent
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AssigneesStoddard H. Pyle, Wayne R. Roberts
InventorGeorge L. Mayo
Estimating the term…
A base frame mounts a first gang of saws in a common vertical datum plane and a first wood member conveyor device. A second gang of saws in a common vertical datum plane and a second wood member conveyor device are mounted on a carriage on the base frame for movement toward and away from the first gang of saws and first conveyor device. Each saw in each gang is independently vertically adjustable in its vertical datum plane and each saw is rotatable a full 180 degrees around the axis of a chord on the saw blade lying in the common datum plane of such saw. Each saw, during its angular rotation, is precisely supported on a double pantograph movement linkage which follows an arcuate track centered on said chord and vertical datum plane. A precision drive for the wood member conveyor devices and carriage obviates the necessity for a long torque shaft and enables much greater versatility of operation of the apparatus. A precision automatic wood member measuring device and carriage positioner is provided on the front of the base frame. The range of utility of the apparatus is significantly increased.
A wood member cutting apparatus comprising a base, a first gang of saws and a coacting first wood member conveyor on the base, a carriage on the base movable toward and away from the first gang of saws and first conveyor, a second gang of saws and a coacting second wood member conveyor on the carriage and bodily movable therewith, common driving means for the carriage and for the first and second wood member conveyors, independent vertical adjustment means for each saw in each gang of saws on the base and carriage, and independent 180 degrees rotational movement means for each saw in each gang on the independent vertical adjustment means for each saw, the blades of the saws in each gang rotating around a chord on the saw blade lying in a vertical datum plane common to the saws in each gang.
A wood member cutting apparatus comprising a base, a first gang of saws and a coacting first wood member conveyor on the base, a carriage on the base movable toward and away from the first gang of saws and first conveyor, a second gang of saws and a coacting second wood member conveyor on the carriage and bodily movable therewith, independent vertical adjustment means for each saw in each gang on the base and carriage, independent rotational movement means for each saw in each gang, and common driving means for the carriage and said first and second wood member conveyors including a single power drive unit on the base, main longitudinal driving chains on the base and being drivingly coupled to said power drive unit, a propulsion member for the carriage drivingly coupled to said longitudinal driving chains, gearing drivingly interconnecting one of said longitudinal driving chains with the first wood member conveyor, gearing independent from the last-named gearing drivingly interconnecting said one of said driving chains with the second wood member conveyor so that said conveyors can be independently operated or operated in unison, said first and second-named gearing including remotely controllable clutch units.
Dependencies are inferred from the claim text.