Photocopying – Contact printing – Light boxes
Patent
1975-07-21
1977-10-04
Moses, Richard L.
Photocopying
Contact printing
Light boxes
355100, 355106, G03D 1300
Patent
active
040527328
ABSTRACT:
A film developer-fixer for diazo, vesicular or similar film in which the exposed film is developed by subjecting it to high temperature. The film is moved continuously at a constant speed past a developing station defined by a pair of opposing, spaced apart heating platens; the spacing between the platens exceeds the thickness of the film. Heated air is blown against the film emulsion to generate an air bearing for the film. Downstream of the developing station is a film cooling station and downstream of the cooling station a fixing station where the developed emulsion is subjected to light to permanently fix the images thereon. The cooling and the fixing stations are disposed in cavities defined by a supporting structure and they communicate with a source of cooling air for cooling the film and the components of the apparatus. Transport means is defined by a plurality of roller sets having polished surfaces. The rollers are rotated at a speed equal to the speed of the film, their spacing is less than the length of the film (in the direction of travel) so that the film is always positively advanced in a downstream direction and means is provided for cooling the rollers with cooling air supplied to the support structure cavities mentioned above.
REFERENCES:
patent: 3293775 (1966-12-01), Kitrosser
patent: 3372630 (1968-03-01), Schmidt
patent: 3718983 (1973-03-01), Crowell
patent: 3774520 (1973-11-01), Smith et al.
patent: 3775711 (1973-11-01), Burgess et al.
patent: 3817618 (1974-06-01), Riley et al.
patent: 3863360 (1975-02-01), Stievenar
patent: 3867031 (1975-02-01), Hakanson
Moses Richard L.
Quantor Corporation
LandOfFree
Apparatus for developing and fixing heat sensitive film does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for developing and fixing heat sensitive film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for developing and fixing heat sensitive film will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1777488