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IP.com Disclosure Number: IPCOM000076386D
Original Publication Date: 1972-Feb-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Rubeling, RR: AUTHOR

Abstract

This spirally-shaped picker wheel is utilized to feed single sheets of paper from the top of a stack of paper.

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This spirally-shaped picker wheel is utilized to feed single sheets of paper from the top of a stack of paper.

When it is desirous to feed a single sheet of paper from hopper 11, solenoid 13 is de-energized allowing picker wheel 15 to lower, contacting sheet 17. Rotation of picker wheel 15 causes the top sheet to move forward toward ramp
19. After approximately one revolution of picker wheel 15, sheet 17 contacts transport rollers 21 and restacker rollers 23. Restacker gate 25 then moves from behind ramp 19 toward the front edge of the paper stack 27 under advancing sheet 17, thereby restacking sheets which may have moved slightly forward. If a second sheet is attempting to follow sheet 17, it is powered back into the hopper 11 by the combined action of restacker gate 25 and restacker roller 23. As sheet 17 moves a short distance beyond the transport restacker rollers 21, 23, it contacts microswitch 29 energizing solenoid 13 which raises picker wheel 15.

Picker wheel 15 is made of an elastic foam material which imparts a resilient force onto the trailing edge portion of sheet 17.

The picker wheel 15 moves down into hopper 11 at a smooth even rate, and its shape tends to accelerate sheet 17 smoothly from the paper stack.

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