Apparatus and method of feeding paper from the bottom of a stack

Details Apparatus and method of feeding paper from the bottom of a stack Apparatus and method of feeding paper from the bottom of a stack

1993-10-01

1995-04-25

Gastineau, Cheryl L.

Sheet feeding or delivering

Feeding

Separators

271138, 271140, 271161, 271167, 270 54, B65H 360

Patent

active

054092051

ABSTRACT:
A paper feeder for a printing and bookbinding system incorporates a top load, bottom feed hopper having a cyclically operated platform for transporting paper signatures from a stack to a conveyor. The platform utilizes spaced supports of a high friction, low durameter rated material in contact with the lowermost signature in the stack. A gating mechanism is adjustable to pass only a single signature during each cycle of the platform. Outfeed rollers grasp the signature after initial advancement by the platform. Operation of the platform is synchronized to position such that the platform lowers to drop the supports out of contact with the signature as the advancing signature is grasped by the rollers. In one form, the platform may include a vacuum attachment to assure adherence of the signature to the supports. A vacuum mechanism may also be attached to the outfeed rollers for use in opening signatures for an insert-stitch-trim operation.

REFERENCES:
patent: 2187123 (1940-01-01), Harm
patent: 2991075 (1961-07-01), Wheeler et al.
patent: 3421754 (1969-01-01), Schaller et al.
patent: 3572683 (1971-03-01), Hepp
patent: 3975010 (1976-08-01), Schisselbauer et al.
patent: 4557472 (1985-12-01), Hannon
patent: 4775137 (1988-10-01), Glanzmann
patent: 4919413 (1990-04-01), Hannon

Affiliated with

Also associated with

Rating

Apparatus and method of feeding paper from the bottom of 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 Apparatus and method of feeding paper from the bottom of a stack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method of feeding paper from the bottom of a stack will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1563164