Method and apparatus for feeding items from a stack

Details Method and apparatus for feeding items from a stack Method and apparatus for feeding items from a stack

1975-06-30

1976-12-21

Saifer, Robert W.

Sheet feeding or delivering

Feeding

Separators

271 12, 271 94, 271108, 271119, 271271, B65H 310, B65H 512

Patent

active

039984494

ABSTRACT:
A stack of items having an irregular thickness such as folded sheets, booklets, filled envelopes and the like are positioned in a stack receiver with the stack leading edge resting against the pair of support rails. The stack lowermost item is supported adjacent its rear edge by rotatable supports mounted adjacent to a feed cylinder. A depending wiper device is mounted adjacent the leading edge of the stack and has a flexible bottom edge portion that is positioned either abutting or closely adjacent the cylinder surface. The feed cylinder positioned below the stack has a longitudinal protuberance that extends beyond the cylinder surface and is arranged upon rotation of the cylinder to contact the lowermost item of the stack and move this item between the wiper bottom edge and the cylinder to a position where the leading portion of the lowermost item is moved beyond the wiper device. The cylinder has a plurality of longitudinally extending rows of vacuum ports that are progressively activated as the rows pass beyond the wiper mechanism. The underside of the lowermost item is held against the cylinder surface by the vacuum and is transferred by the cylinder to a conveying device.

REFERENCES:
patent: 2623746 (1952-12-01), Gegenheimer et al.
patent: 2817519 (1957-12-01), Beck
patent: 2852255 (1958-09-01), Fischer
patent: 3291482 (1966-12-01), Stemmler

Affiliated with

Also associated with

Rating

Method and apparatus for feeding items from a stack does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for feeding items from a stack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for feeding items from a stack will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1835483