Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Including threading
Patent
1996-06-26
1998-10-20
Darling, John P.
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Including threading
242354, 2423562, 396413, G03B 112
Patent
active
058234543
ABSTRACT:
A film transport apparatus for selectively advancing a film out of, or rewinding a film onto, a spool shaft of a cartridge. The apparatus has:
a) a rotatable member which engages the spool shaft;
b) a first drive assembly for pulling on film remote from the cartridge to assist in advancing the film out of the cartridge;
c) a transmission assembly to thrust film from the spool shaft and rewind it onto the spool shaft, comprising:
a rewind gear positioned to rewind the rotatable member, and a thrust gear positioned to advance the rotatable member through a directional clutch such that when film is pulled from the spool shaft by the first drive assembly the thrust gear will disengage from the rotatable member; and
a gear train which selectively engages the thrust or rewind gear; and
d) a drive to drive the first drive assembly and the gear train.
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patent: 4967213 (1990-10-01), Han
patent: 4992811 (1991-02-01), Fridman
patent: 5160953 (1992-11-01), Iwashita et al.
patent: 5456419 (1995-10-01), Ezawa
patent: 5477288 (1995-12-01), Miyazaki et al.
Darling John P.
Eastman Kodak Company
Owens Raymond L.
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