Urge roller for registering bottom edges of flat articles in a s

Details Urge roller for registering bottom edges of flat articles in a s Urge roller for registering bottom edges of flat articles in a s

1995-12-14

1996-11-19

Merritt, Karen B.

Sheet feeding or delivering

Special articles

Envelope

271178, 271179, 271181, B65H 2922

Patent

active

055754643

ABSTRACT:
An improvement in a stacking system having an urge roller, an input guide, a spring loaded backup paddle, a substantially horizontal surface and a substantially vertical registration wall. The improvement comprising a rib wrapped around the surface of the urge roller in a helical pattern. Thus, as the urge roller rotates and feeds an article toward the vertical registration wall, the helical rib forces the bottom edge of the article into contact with the horizontal surface. As a result, a properly aligned and tight stack of articles is formed.

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patent: 5417414 (1995-05-01), Belec et al.
patent: 5449159 (1995-09-01), Belec et al.
Ribbed Roller for Document Stacking, IBM Technical Disclosure Bulletin, vol. 22, No. 4, Sep. 1979.

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