B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
270/4, 270/79
B65G 57/18 (2006.01)
Patent
CA 1116645
ABSTRACT OF THE DISCLOSURE: In a lumber stacking method and apparatus a layer of lumber is conveyed to a lifting location where a pair of arms beneath the layer of lumber are tilted respectively about horizontal axes parallel to a horizontal plane in which the layer is located to engage beneath and raise the layer at the lifting location above the latter horizontal plane, with these arms then being advanded forwardly while supporting the raised layer. The arms are advanced forwardly to become situated over that part of the stack which has already been formed, and at this latter stacking location the arms are lowered by being tilted in a reverse direction to as to situate the transported layer at the top of the stack which is being formed, the arms then being retracted back to the position beneath the lifting location while the transported layer remains at the top of the stack. While these arms move over that part of a stack which has already been formed at the stacking location, lower edge regions of the arms are situated above the uppermost layer of that part of the stack which has already been formed by a distance sufficient to prevent engagement of the arms with any crooked pieces of lumber in the uppermost layer of that part of the stack which has already been formed.
304239
Robic Robic & Associes/associates
Rysti Alpo
LandOfFree
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