Typewriting machines – Sheet or web – For feeding web record-medium
Patent
1992-01-28
1993-03-02
Burr, Edgar S.
Typewriting machines
Sheet or web
For feeding web record-medium
225 99, B41J 1126
Patent
active
051903865
ABSTRACT:
A printer having first and second opposed sprockets positioned on opposed sides of a printer platen for feeding from an upstream to a downstream direction continuous-feed paper sheets having continuous-feed edge strips formed along the opposing sides of the paper sheets. A edge strip trimming apparatus is provided in combination with the printer. The edge strip trimming apparatus includes first and second edge strip trimmers. Each of the edge strip trimmers have edge strip hold-down devices positioned in closely spaced-apart relation to one of the first and second sprockets for holding the edge strip against the sprocket as the paper is fed through the printer. An inclined paper support bed extends inwardly from the edge strip hold down device to a point underneath the horizontal plane of the paper sheet for progressively diverging the plane of the edge strip from the plane of the paper sheet as the paper sheets are successively fed through the printer. The support bed defines an edge surface. The edge surface has a gradual compound curve which tapers outwardly towards the edge strip hold down device and forwardly in the direction from which the paper sheets are fed through the printer to separate the edge strip from the paper sheet by moving the paper sheet simultaneously away from the edge strip in a vertical and lateral plane thereby causing progressive simultaneous separation in two planes.
REFERENCES:
patent: 2188347 (1940-12-01), Fulk
patent: 2317384 (1943-04-01), Johnson
patent: 2862554 (1958-12-01), Davidson et al.
patent: 4423975 (1984-01-01), Krenz
patent: 4616773 (1986-10-01), Kerivan
patent: 4940347 (1990-07-01), Lund
patent: 4993856 (1991-02-01), Chung
patent: 5051013 (1994-09-01), Song
Adams, III W. Thad
Burr Edgar S.
Nguyen Anthony H.
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