Diazo developer apparatus with contact heat transfer plates

Details Diazo developer apparatus with contact heat transfer plates Diazo developer apparatus with contact heat transfer plates

G - Physics

03

D

95/87

G03D 7/00 (2006.01)

Patent

CA 1052608

Abstract of the Disclosure Apparatus for developing diazo type films includes an ammonia chamber having an electrically heated heat trans- fer plate disposed therein dividing the ammonia chamber into upper and lower portions. Two pairs of rollers are disposed at opposite ends of the ammonia chamber in parallel relation- ship to the transfer plate for transporting the film over the heat transfer plate. A pressure roller is positioned within the upper portion of the ammonia chamber above the heat transfer plate for maintaining the film in intimate contact with the plate to provide for an efficient transfer of the heat between the heat transfer plate and the film. An inlet for an ammonia gas developer is provided in the lower portion of the ammonia chamber, and passages are provided around the heat transfer plate to permit the ammonia gas developer to flow around the plate and into the upper portion of the ammonia chamber while being heated by the plate.

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