Apparatus for processing photographic sheet material
US5452041A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Sep 9, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D15/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for processing photographic sheet material comprises a housing, a first roller shaft supported within the housing and first and second processing rollers rotatable on respective roller shafts supported within the housing. The second processing roller lies substantially parallel to the first, and in line contact therewith. Biasing means bias the roller shafts towards each other. Means are provided for feeding photographic sheet material between the rollers. Each of the rollers has a radially outer zone formed of deformable material and has a radial dimension profile which varies along the length thereof. Such a roller construction enables the bleeding of images on aluminium lithographic printing plates processed by the apparatus to be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.