Multifeed detector

Details Multifeed detector Multifeed detector

G - Physics

03

G

270/26, 314/7, 3

G03G 15/24 (2006.01) B65H 7/12 (2006.01)

Patent

CA 1120127

ABSTRACT OF THE DISCLOSURE A multifeed detection system is disclosed that includes a drag roll which is in contact with and loaded against a driven feed belt. A slip clutch applies a torque to the drag roll. The drag roll is in synchronism with a constant speed motor that drives the feed belt. A double sheet entering the nip between the drag roll and the feed belt will cause the drag roll to hesitate with the hesitation being detected by a sensor that activates shut-down of the feeding system.

324983

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