Patent
1980-11-17
1982-02-02
Hix, L. T.
354314, 354317, 354318, G03D 506
Patent
active
043136672
ABSTRACT:
Apparatus for processing an exposed roll of instant or self-developing type transparency film. The apparatus includes structure for supporting a film cassette containing an exposed roll of film, a spool having an elongate strip of sheet material wound thereupon, and a take-up reel which is adapted to receive an end of the exposed film and the sheet material and which is adapted to be rotated so as to wind the exposed film and the sheet material thereupon in superposed relation as a processing composition is being coated upon the sheet material so as to initiate the formation of visible images in the film. The apparatus also includes a rotary knife which is actuated as a trailing end portion of the exposed film is being withdrawn from the film cassette so as to sever the film which was wound upon the take-up reel from its attachment to the film cassette's spool.
REFERENCES:
patent: 2848931 (1958-08-01), Troidl
patent: 2880657 (1959-04-01), Bartlett
patent: 3711192 (1973-01-01), Land
patent: 3829204 (1974-08-01), Riedel
patent: 4167318 (1979-09-01), Wareham
patent: 4212521 (1980-07-01), Stella
patent: 4212527 (1980-07-01), Fischer
Research Disclosure, pp. 132-134, Apr. 1980.
Corrigan Alfred E.
Hix L. T,.
Mathews Alan
Polaroid Corporation
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