Paper drive mechanism for automatic photographic paper cutter

Details Paper drive mechanism for automatic photographic paper cutter Paper drive mechanism for automatic photographic paper cutter

1977-09-29

1978-08-15

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 56R, 242 672, B65H 2522

Patent

active

041067169

ABSTRACT:
An automatic photographic paper cutter includes a drive system which drives a strip of photographic paper to a knife assembly. The drive mechanism applies a driving force along only one edge of the photographic paper strip, so that the operator of the paper cutter has an essentially unobstructed view of the prints on the photographic paper strip. A paper supply, which includes a spring loaded bale arm assembly, a pinch roller drive assembly, a brake, a motor and clutch, two loop sensors, and a U-shaped wire form guide supplies the photographic paper strip from a roll of photographic paper to the drive mechanism under essentially zero drag conditions.

REFERENCES:
patent: 2152118 (1939-03-01), Walter
patent: 3116032 (1963-12-01), Roberts
patent: 3556368 (1971-01-01), Rene
patent: 3715085 (1973-02-01), Kobayashi
patent: 3755861 (1973-09-01), Castro

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