GB545901A - Improved method for the development and subsequent treatment of photographic film - Google Patents
Improved method for the development and subsequent treatment of photographic filmInfo
- Publication number
- GB545901A GB545901A GB920040A GB920040A GB545901A GB 545901 A GB545901 A GB 545901A GB 920040 A GB920040 A GB 920040A GB 920040 A GB920040 A GB 920040A GB 545901 A GB545901 A GB 545901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- drum
- support
- development
- wetted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title 1
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 abstract 2
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 abstract 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 abstract 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 abstract 1
- 229940081735 acetylcellulose Drugs 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 230000002596 correlated effect Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000004627 regenerated cellulose Substances 0.000 abstract 1
- 229910001961 silver nitrate Inorganic materials 0.000 abstract 1
- 239000002356 single layer Substances 0.000 abstract 1
- 235000002906 tartaric acid Nutrition 0.000 abstract 1
- 239000011975 tartaric acid Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
- G03D13/02—Containers; Holding-devices
- G03D13/04—Trays; Dishes; Tanks ; Drums
- G03D13/046—Drums; Films convolutely fixed on the side of the drum
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
545,901. Developing photographic films. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 24, 1940, No. 9200. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 28, 1940.] [Class 98 (ii)] A film, e.g. of regenerated cellulose or of superficially-saponified acetyl cellulose, liable to deformation when wetted, is wound for development &c. in a single layer on a support having an invariable diameter and provided with a helical rib for separating the turns, and forces are exerted upon the film having a component directed towards the axis of the support to maintain the film thereon and prevent relative movement during treatment. The support may be a drum 1, having a helical rib 5 forming a track for the film 2, and rotatable in a shallow dish of arcuate section or in a cylinder which completely encloses the drum. The film may be wound on the drum under tension sufficient to ensure that it will still remain taut if it expands when wetted, and be held by end-clips at 6, 7 ; or it may be maintained on the drum by suction applied through holes in the drum from a duct in the drum-shaft. The developer may be a physical developer, e.g. metol, tartaric acid, and silver nitrate, whose quantity and composition are correlated to the area of film to be developed and the desired density of image. The material physically developed may be an exposed diazotype. Reference is made to Specification 512,527.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB920040A GB545901A (en) | 1940-05-24 | 1940-05-24 | Improved method for the development and subsequent treatment of photographic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB920040A GB545901A (en) | 1940-05-24 | 1940-05-24 | Improved method for the development and subsequent treatment of photographic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB545901A true GB545901A (en) | 1942-06-18 |
Family
ID=9867331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB920040A Expired GB545901A (en) | 1940-05-24 | 1940-05-24 | Improved method for the development and subsequent treatment of photographic film |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB545901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992022853A1 (en) * | 1991-06-18 | 1992-12-23 | Kodak Limited | Photographic processing apparatus |
-
1940
- 1940-05-24 GB GB920040A patent/GB545901A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992022853A1 (en) * | 1991-06-18 | 1992-12-23 | Kodak Limited | Photographic processing apparatus |
| US5394215A (en) * | 1991-06-18 | 1995-02-28 | Eastman Kodak Company | Photographic processing apparatus |
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