Paper feeder

Details Paper feeder Paper feeder

1989-05-09

1990-10-09

Stodola, Daniel P.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

4006162, B65H 2020, B41J 1130

Patent

active

049615262

ABSTRACT:
A paper feeder has a pair of spaced opposed side frames, a driving sprocket having external teeth on the outer circumferential surface thereof and a supporting shaft on which the driving sprocket is mounted and rotably mounted between the two side frames, and an endless feed belt having a portion around the driving sprocket and having feed pins on the outer circumferential surface and engageable with perforations in perforated paper, and having internal teeth on the inner circumferential surface thereof meshed with the external teeth for being turned by the driving sprocket. A pair of ring members is pivotably mounted around the ends of the rotary shaft at opposite ends of the driving sprocket and each having an arcuate friction wall thereon extending to a position opposed to the outer surface of the portion of the feed belt extending around the sprocket with a clearance between the inner surface of the friction wall and the outer surface of the feed belt, and a belt engaging member on the ring member extending to a position spaced just outwardly of the portion of the feed belt as it comes off the driving sprocket.

REFERENCES:
patent: 152270 (1874-06-01), Bird
patent: 1636273 (1927-07-01), Baker
patent: 4453660 (1984-06-01), Cornell et al.

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