Stacker for flat material

Details Stacker for flat material Stacker for flat material

1979-06-22

1982-01-12

Schacher, Richard A.

Sheet feeding or delivering

Delivering

With transfer means between conveyor and receiver

271195, 271196, 271215, 271309, B65H 2900

Patent

active

043101526

ABSTRACT:
A stacker for sheet material has a stacker drum. The stacker drum receives sheets from a transport system at a first tangential position and arcuately moves them to a stop at a second tangential position against which the stack is formed. The stacker drum has a row of suction openings for gripping the leading edge of the sheets followed by compressed air openings. The compressed air openings are positioned behind the suction openings sufficiently far so that the compressed air is applied to the sheets only after the leading edges have been run up against the stop.

REFERENCES:
patent: 1991511 (1935-02-01), Lyman
patent: 2759543 (1956-08-01), Conti
patent: 2931647 (1960-04-01), Papa
patent: 3618935 (1971-11-01), Howatt
patent: 3675522 (1972-07-01), Hull
patent: 3729188 (1973-04-01), Stephenson
patent: 3840222 (1974-10-01), Fowlie
patent: 4027580 (1977-06-01), Sundin
patent: 4116430 (1978-09-01), Winchester

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