Apparatus for feeding scanned medium

Details Apparatus for feeding scanned medium Apparatus for feeding scanned medium

1995-03-24

1997-04-08

Mansen, Michael

Advancing material of indeterminate length

Threading device

226155, 226183, 226190, 355 47, G03B 156, G03B 2758, B65H 2000

Patent

active

056179863

ABSTRACT:
A feed apparatus for feeding a film has a pair of presser guide members for pressing a film F against an outer circumferential surface of a feed drum, a pair of upstream and downstream guide plates for guiding the film F, and a moving mechanism for moving a pair of nip rollers toward and away from the feed drum. When the film F is scanned by a light beam, the film F is tautly held against the outer circumferential surface of the feed drum. The moving mechanism has first and second displacing mechanisms actuatable in synchronism with vertical movement of the nip rollers toward and away from the feed drum for displacing the presser guide members and the upstream and downstream guide plates toward and away from the feed drum.

REFERENCES:
patent: 2051036 (1936-08-01), Foster et al.
patent: 2051787 (1936-08-01), Foster
patent: 3512694 (1970-05-01), Sugaya et al.
patent: 3669331 (1972-06-01), Renold
patent: 4833496 (1989-05-01), Hall
patent: 5103322 (1992-04-01), Beck et al.
patent: 5181066 (1993-01-01), Ozawa et al.

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