Stack stop assembly on a sheet feeder of a printing press

Details Stack stop assembly on a sheet feeder of a printing press Stack stop assembly on a sheet feeder of a printing press

1985-03-01

1987-09-01

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 98, 271104, 271107, 271167, B65H 510

Patent

active

046903941

ABSTRACT:
A stack stop assembly is on a sheet feeder of a printing press having an impression cylinder with grippers disposed thereon formed with respective sheet stops. A row of suckers and a pair of conveyor rollers are disposed between the sheet feeder and the impression cylinder. An uppermost sheet of a stack of sheets is liftable at a leading edge thereof by the row of suckers over and beyond stack stops of the stack stop assembly and being feedable to the pair of conveyor rollers for advancing the uppermost sheet to the sheet stops formed on the impression-cylinder grippers. The stack stop assembly includes swivel bearings supporting the stack stops, respectively, at both sides thereof, each of the stack stops having a journal pin to which a pivot arm is secured.

REFERENCES:
patent: 1898535 (1933-02-01), Haupt et al.
patent: 3539178 (1968-02-01), Yanagawa
patent: 4148474 (1979-04-01), Back

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