Sheet-material associating – Associating and folding – Zigzag package
Patent
1975-07-28
1978-01-24
Burr, Edgar S.
Sheet-material associating
Associating and folding
Zigzag package
270 73, B41L 132
Patent
active
040700143
ABSTRACT:
An improved apparatus is disclosed, by which two individually transversely cut web pieces, successively supplied from two different sources, are each attracted by suction onto the surface of either of a pair of suction rolls disposed parallel and rotated in opposing directions, at a first point of rotation of the rolls, and carried from said first point to a point at which the two rolls are in mating relation; at this mating point of rolls, the two cut web pieces each carried by either roll are put together or overlapped and carried by the other roll to a further point of rotation of said other roll, lower to the rolls, at which they are peeled off the roll surface and folded double by either of a pair of folding bars individually operatively associated with either roll, whereby the successively supplied cut webs are folded double in an intermeshing manner and piled below the rolls. In the disclosed embodiment, two webs from two different supply sources are transversely cut with a phase difference with respect to the rotation of two suction rolls, whereby each successive pair of the folded web pieces are folded individually on opposing directions.
REFERENCES:
patent: 843781 (1907-02-01), Wheeler
patent: 940933 (1909-11-01), Klein
patent: 1186018 (1916-06-01), Meisel
patent: 1484069 (1924-02-01), Hudson
patent: 3044766 (1962-07-01), Banks
patent: 3048389 (1962-08-01), Salmon
Burr Edgar S.
Fiddler Robert W.
Heinz A.
Kawanoe Zoki Kabushiki Kaisha
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