Film roll accumulating device

Details Film roll accumulating device Film roll accumulating device

1995-02-21

1996-08-13

Jillions, John M.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

354275, G03B 2302

Patent

active

055448330

ABSTRACT:
A film roll accumulating device for forming a filmstrip into a cylindrical film roll as for example in a camera or a film cassette, comprises an arcuate film guide at least partially enclosing a cylindrically-shaped space having a centerline. The arcuate film guide includes a film ingress opening through which a filmstrip can be fed to be guided concentrically about the centerline into a cylindrical film roll in the space, and is flexible and secured to permit the film ingress opening to widen to expand the cylindrically-shaped space concentrically about its centerline in order to accommodate enlargement of the cylindrical film roll without any shift in the centerline as additional film is fed through the opening.

REFERENCES:
patent: 1799184 (1931-04-01), Slocum et al.
patent: 2236917 (1941-04-01), Pollock
patent: 3057573 (1962-10-01), Kindig et al.
patent: 3288388 (1966-11-01), Winkler
patent: 3356311 (1967-12-01), Winkler et al.
patent: 3718301 (1973-02-01), Morton
patent: 3823891 (1974-07-01), Schrader
patent: 4077128 (1978-03-01), Stoutenberg
The Focal Encyclopedia of Photography Desk Edition, 1969 by Focal Press Ltd., pp. 170-171.

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