Method and apparatus for feeding documents with variable...

Details Method and apparatus for feeding documents with variable... Method and apparatus for feeding documents with variable...

B - Operations, Transporting

65

H

270/159

B65H 5/06 (2006.01) B65H 7/02 (2006.01)

Patent

CA 1100538

METHOD AND APPARATUS FOR FEEDING DOCUMENTS WITH VARIABLE DRIVING FORCE Abstract To feed sheet material such as punched cards, copy sheets and the like along a given feed path, the driving force applied to the material is altered in dependence upon the specific driving force requirements at any given portion of the feed path. Where a pair of feed rollers are used, (a drive roller and or idler roller), the driving force is varied by selectively varying the nip pressure between the rollers. Control of nip pressure can be effected by electro-magnetic means operatively connected one or other of the idler and drive rollers. CA9-79-001

325545

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