Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1974-04-22
1976-08-10
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 23, 34 41, 427 55, 427374, 427385, F26B 330
Patent
active
039733289
ABSTRACT:
A method and apparatus for drying polyethylene laminated base photographic paper in sheet form. The exposed and processed sheet of photographic paper bearing a photographic image on one side thereof is caused to travel through an enclosed drying chamber. Radiant heat is directed from sources onto both sides of the sheet of photographic paper as it is caused to travel through the drying chamber. The radiant heat is applied for sufficient time to cause any shallow indentation lines on the image side of the photographic paper to disappear. Simultaneously a stream of cool air is caused to flow over the image side of the photographic paper. Both sources are provided with means for directing the radiant heat on to each side respectively of the support. There are further provided means for causing a stream of cool air to flow over the support and at least one pair of nip rollers for driving the sheets of photographic paper into the apparatus and a pair of nip rollers for driving the sheets of photographic paper out of the apparatus and means for causing streams of cool air to flow over and through the pairs of nip rollers which drive the sheets of photographic paper into and out of the apparatus.
REFERENCES:
patent: 2442407 (1948-06-01), Gibbons et al.
patent: 2534205 (1950-12-01), Newhall et al.
patent: 2559713 (1951-07-01), Dunski et al.
patent: 3287816 (1966-11-01), Mignone
patent: 3639207 (1972-02-01), Genz et al.
patent: 3811913 (1974-05-01), Kasugai et al.
Camby John J.
Ilford Limited
Schwartz Larry I.
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