Bottom sheet separator-feeder

Details Bottom sheet separator-feeder Bottom sheet separator-feeder

1983-09-20

1986-06-17

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separators

271 31, 271161, 271166, B65H 312, B65H 346

Patent

active

045951900

ABSTRACT:
A bottom sheet separator-feeder for separating and forwarding sheets seriatim from the bottom of a stack of sheets includes a stack tray and endless vacuum belts extending through the front end of the tray for acquiring and advancing the bottom sheet, the belts extending across a support surface having vacuum ports therein for applying a negative pressure at the back of the belts. In order to reduce unwanted vacuum effects upstream of the vacuum ports, a transverse lip extends across the support surface upstream of the vacuum ports.

REFERENCES:
patent: 2987314 (1961-06-01), Monaghan
patent: 4269406 (1981-05-01), Hamlin
patent: 4270746 (1981-06-01), Hamlin
patent: 4275877 (1981-06-01), Silverberg
patent: 4284270 (1981-08-01), Silverberg
patent: 4305576 (1981-12-01), Hamlin
patent: 4313599 (1982-02-01), Lohr

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