Method and apparatus for feeding lumber

Details Method and apparatus for feeding lumber Method and apparatus for feeding lumber

1982-06-16

1984-10-09

Valenza, Joseph E.

Conveyors: power-driven

Conveyor for changing attitude of item relative to conveyed...

For changing both the elevation and the posture of...

198458, 198422, B65G 4724

Patent

active

044756445

ABSTRACT:
The invention relates to a method and apparatus for feeding lumber, especially in connection with a four-band saw for separating and feeding side boards. The problem in four-band sawing is how to separate the boards of a pair of side boards sawed off from the sides of a log or block for further processing such as trimming. This problem is solved so that the side boards that are sawed off from the log are dropped by opening side guards and then directed the side boards by means of adjustable dropping flaps onto a transverse conveyor so that they remain on the conveyor with the cant edge focus up. The boards are then piled on top of each other and/or in a laminating fashion. The side boards are arranged, by shifting them against transient stops of the transverse conveyor, into a pile wherefrom the side boards can be suitably fed further by means of stopping members arranged in connection with the conveyor on a sloping plane. The stopping members can be adjusted into at least two different positions. In the first position the uppermost board of the pile of boards continues its movement but the rest are stopped. In the second position the next side board is released, and the rest are held back. This continues until all the boards are fed.

REFERENCES:
patent: 2468036 (1949-04-01), Charters
patent: 2588484 (1952-03-01), Charters et al.
patent: 4240477 (1980-12-01), Horn et al.
patent: 4286638 (1981-09-01), Connolly et al.
patent: 4289180 (1981-09-01), Weinzierl

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