Photography – Fluid-treating apparatus – Having photographic medium feed
Patent
1996-05-07
1997-11-18
Mathews, A. A.
Photography
Fluid-treating apparatus
Having photographic medium feed
396622, 396636, G03D 308
Patent
active
056897502
ABSTRACT:
An apparatus for the wet processing of photographic sheet material comprises at least one treatment vessel (12, 12', 12") having upper and lower openings (17, 18), one of the openings (17) constituting a sheet material inlet and the other of the openings (18) constituting a sheet material outlet, the inlet and outlet defining there-between a substantially vertical sheet material path (20) through the vessel. The vessel comprises a rotatable roller (28) biased towards a reaction surface (30) to define a roller nip (36) there-between through which the sheet material path extends and associated with sealing means (38) to retain treatment liquid (24) in the vessel (12). The apparatus is characterised in that the roller (28) comprises a core (32) carrying a covering (34) of elastomeric material, the ratio (.phi./L) of the maximum diameter (.phi.) of the elastomeric material covering to the length (L) thereof being at least 0.012.
REFERENCES:
patent: 4166689 (1979-09-01), Schausberger et al.
patent: 4616915 (1986-10-01), Norris
patent: 5452041 (1995-09-01), Claes et al.
patent: 5455651 (1995-10-01), Verhoest et al.
patent: 5479232 (1995-12-01), Ven Den Bergen et al.
De Niel Marc
Verhoest Bart
Verlinden Bartholomeus
AGFA-GEVAERT N.V.
Mathews A. A.
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