Sheet stackers

Details Sheet stackers Sheet stackers

1986-12-17

1989-02-28

Rolla, Joseph J.

Sheet feeding or delivering

Delivering

To receiver for pack of sheets

271212, 271213, 271180, 271186, B65H 3100

Patent

active

048078662

ABSTRACT:
A device for stacking sheets, as from the outlet of a reprographic machine, uses a pair of belts having coplanar upper surfaces. The upper runs of the belts are stationary, and have a gap between them. To make the device work, the gap is displaced to one side of this stack and a sheet is fed into contact with that part of one belt which comes to lie below the stack, so that as the gap is translated across the bottom of the stack, the sheet is applied smoothly to the stack, displacing it upwardly.

REFERENCES:
patent: 1071928 (1913-09-01), Koerner
patent: 1072397 (1931-09-01), Koerner
patent: 3396966 (1968-08-01), Solheim
patent: 3790163 (1974-02-01), Helm
patent: 3915447 (1975-10-01), Perno
patent: 3951401 (1976-04-01), Marass
patent: 4025187 (1977-05-01), Taylor et al.
patent: 4135804 (1979-01-01), Schoppe et al.
patent: 4174831 (1979-11-01), Marass et al.
patent: 4696465 (1987-09-01), Willi
IBM Technical Disclosure Bulletin, vol. 23, No. 11, Apr. 1981, "Cam-Lifting Device", by L. A. Walker.

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