Paper feed control for automatic photographic paper cutter

Details Paper feed control for automatic photographic paper cutter Paper feed control for automatic photographic paper cutter

1977-09-29

1979-08-07

Schran, Donald R.

Cutting

Operation controlled by detector means responsive to work

Actuation of tool controlled in response to work-sensing means

83211, 83365, 83369, B26D 534, B26D 706

Patent

active

041634055

ABSTRACT:
An automatic photographic paper cutter cuts photographic prints from a strip of photographic paper which bears cut indicia indicating the locations of desired paper cuts. An indicia sensor is positioned in fixed relationship with respect to the paper cutter knife assembly at a distance less than the shortest length of print to be cut. The paper cutter derives and stores a feed-after-sense signal, which represents the length the paper strip must be fed after a cut indicium is sensed in order for the strip to be cut at the desired cut location represented by that cut indicium. During automatic operation of the paper cutter, the photographic paper strip is advanced until a cut indicium is sensed, is advanced by an additional distance determined by the feed-after-sense signal, is stopped, and is cut at the desired cut location.

REFERENCES:
patent: 3143017 (1964-08-01), Donnell
patent: 3600997 (1971-08-01), Schmidt
patent: 3811768 (1974-05-01), Zahn et al.
patent: 4098158 (1978-07-01), Escales et al.

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