Lumber stacking apparatus

Details Lumber stacking apparatus Lumber stacking apparatus

1977-06-20

1979-06-26

Paperner, L. J.

Material or article handling

With weighing

414 38, B65G 5718

Patent

active

041590589

ABSTRACT:
A lumber stacker comprising a vertical frame provided with a feed elevator on the front end of the frame which delivers short stacks of boards to a horizonal advancing conveyor on the upper portion of the frame and on which a layer of such stacks accumulates to a predetermined amount when a horizontal elevating frame raises to lift the accumulation of stacks from the advancing conveyor and places them on a horizontal projectable supporting plate which is moved past the rear of the frame and is lowered by downward movement of the elevating frame onto a supporting surface or top of a stack being formed, after which the supporting plate is retracted onto the elevating frame from beneath the accumulated layer of stacks and returns to the initial starting position.

REFERENCES:
patent: 2187026 (1940-01-01), Hamachek
patent: 2639784 (1953-05-01), Strock
patent: 3393812 (1968-07-01), Mayo et al.
patent: 3437215 (1969-04-01), Lunden
patent: 3594977 (1971-07-01), Grasvoll
patent: 3610443 (1971-10-01), Berge et al.
patent: 3648857 (1972-03-01), Grasvoll
patent: 3737052 (1973-06-01), Lunden
patent: 3737053 (1973-06-01), Lunden

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