Importance

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Abstract

A corrugated sheet stacking and feeding apparatus is provided in which stacks of sheets are fed to the unstacking apparatus and are raised to an elevated position in which blocks are progressively removed from the top of the stack and pushed and fed onto an inverting carriage that receives the blocks and pivots the blocks vertically upward and then to an inverted position over a feed conveyor. While the block of sheets are raised to a vertical orientation, alignment elements move inward along the lateral sides to align the lateral edges of the sheets with respect to each other and to laterally shift the block to align the block with a central feed axis. The block then is lowered onto the feed conveyor and moved forward through a shingling gate to feed the sheets progressively in a shingled fashion to a discharge end of the conveyor.

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First Claim