Folder apparatus

Details Folder apparatus Folder apparatus

1976-03-08

1977-10-11

Burr, Edgar S.

Sheet-material associating

Associating or disassociating

Sheet associating

270 69, B65H 4518

Patent

active

040531503

ABSTRACT:
The folding blade or knife of a quarter folder apparatus for paper such as newsprint includes a pair of air jets, one on each side of the top portion of the blade, directed toward the paper being folded. The air jets are supplied from a compressed air source through a flexible tubing. The air jets maintain the ends of the pages being folded in a flattened and aligned configuration throughout the folding operation, thereby preventing wrinkled and dog-eared pages in the folded paper.

REFERENCES:
patent: 3790157 (1974-02-01), Crawford

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