Apparatus for the wet processing of photographic sheet material

Details Apparatus for the wet processing of photographic sheet material Apparatus for the wet processing of photographic sheet material

1996-12-13

1998-08-11

Rutledge, D.

Photography

Fluid-treating apparatus

Having photographic medium feed

G03D 308

Patent

active

057940916

ABSTRACT:
An apparatus for the wet processing of photographic sheet material comprises at least one treatment vessel having a rotatable endless surface means biased towards a reaction member to define a nip there-between through which the sheet material path extends. At least one of the endless rotatable surface means and the reaction member comprises an inner region (58) of elastomeric material having a relatively low hardness, and an outer region (60) of elastomeric material having a relatively high hardness positioned over the inner region (58). Such a roller minimises carry-over between vessels without damage to the sheet material while being capable of successfully being used as a drive roller. The roller exhibits good stability against treatment liquids and has good processing qualities.

REFERENCES:
patent: 4166689 (1979-09-01), Schausberger et al.
patent: 4616915 (1986-10-01), Norris
patent: 5049915 (1991-09-01), Nakamura et al.
patent: 5108878 (1992-04-01), Nakamura
patent: 5313242 (1994-05-01), Devaney et al.
Patent Abstracts of Japan JP-53117425, published 10/31/78, vol. 2, No. 149, p.77.
Patent Abstracts of Japan JP-53117426, published 10/13/78, vol. 2, No. 149, p. 77.
Patent Abstracts of Japan JP-59003435, published 01/10/84, vol. 8, No. 89, p. 270.
Patent Abstracts of Japan JP-63151944, published 06/24/88, vol. 12, No. 415, p. 781.

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