Sheet feeding or delivering – Feeding – Separator and conveyor
Patent
1986-10-17
1988-02-09
Bartuska, F. J.
Sheet feeding or delivering
Feeding
Separator and conveyor
271 34, 271110, 271118, 271122, 271155, 271251, B65H 304
Patent
active
047237732
ABSTRACT:
Sheet feeding systems provide a sheet receiving nip at a peripheral region of a rotary sheet transport and arrange sheets in a stack having a stack and formed by a bottom sheet and spaced from the nip by a distance shorter than the minimum length of any of the sheets. The stack is temporarily lifted from a stack rest, and the bottom sheet is removed therefrom. Sheet jams are prevented by advancing any bottom sheet to the rotary sheet transport in a plane intersecting that rotary sheet transport at a distance from the nip. Each bottom sheet is further advanced from that intersecting plane to the nip, and such advanced bottom sheet is engaged with the nip for transport away from the stack with the rotary sheet transport. The stack end is returned to the stack rest after said removal of a bottom sheet, and the temporary stack end lifting, sheet advancing, sheet engaging and stack end returning steps are repeated individually for further bottom sheets advanced from the stack end.
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Scherer Andrew J.
Westover Dwight G.
Bartuska F. J.
Bell & Howell Company
Waag Lisa
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