GB651791A - Improvements in or relating to photographic film processing apparatus - Google Patents
Improvements in or relating to photographic film processing apparatusInfo
- Publication number
- GB651791A GB651791A GB33300/47A GB3330047A GB651791A GB 651791 A GB651791 A GB 651791A GB 33300/47 A GB33300/47 A GB 33300/47A GB 3330047 A GB3330047 A GB 3330047A GB 651791 A GB651791 A GB 651791A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- applicator
- developer
- photographic film
- opacity
- 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
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
- G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
- G03D5/003—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected film surface only souching the liquid
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
- G03D5/006—Liquid supply by means of a split or a capillarity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Abstract
651,791. Automatic control systems. KODAK, Ltd. Dec. 17, 1947, No. 33300. Convention date, Dec. 17, 1946. [Class 38 (iv)] [Also in Groups XIII and XX] In a photographic developing apparatus, the opacity of the developed photographic film is maintained substantially constant by adjusting the time for which developer is applied to the film in accordance with the opacity of the film as measured by means of a lamp 103 and a photo-cell 105. The amplified out-of-balance output of the cell and an opposing standard potential supplied by battery 114 is employed to drive a reversible A.C. motor 106 which moves the developer applicator 64 about the drum 12 around which the film F passes, so as to alter the time for which developer is applied to it prior to applicator of fixer by the applicator 65.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US651791XA | 1946-12-17 | 1946-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB651791A true GB651791A (en) | 1951-04-11 |
Family
ID=22060854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33300/47A Expired GB651791A (en) | 1946-12-17 | 1947-12-17 | Improvements in or relating to photographic film processing apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB651791A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097817B (en) * | 1956-01-13 | 1961-01-19 | Kelvin & Hughes Ltd | Device for treating a material surface with a liquid, in particular for developing films |
DE1121927B (en) * | 1960-01-16 | 1962-01-11 | Agfa Ag | Developing machine for photographic substrates |
DE1145489B (en) * | 1961-06-07 | 1963-03-14 | Agfa Ag | Method and device for drying glossy photos |
DE1148139B (en) * | 1960-01-28 | 1963-05-02 | Zindler Lumoprint Kg | Device for developing layer support sheets with one-sided wetting of the layer support sheets |
DE1187482B (en) * | 1961-06-07 | 1965-02-18 | Agfa Ag | Device for applying liquids, in particular in photographic processing machines |
-
1947
- 1947-12-17 GB GB33300/47A patent/GB651791A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1097817B (en) * | 1956-01-13 | 1961-01-19 | Kelvin & Hughes Ltd | Device for treating a material surface with a liquid, in particular for developing films |
DE1121927B (en) * | 1960-01-16 | 1962-01-11 | Agfa Ag | Developing machine for photographic substrates |
DE1148139B (en) * | 1960-01-28 | 1963-05-02 | Zindler Lumoprint Kg | Device for developing layer support sheets with one-sided wetting of the layer support sheets |
DE1145489B (en) * | 1961-06-07 | 1963-03-14 | Agfa Ag | Method and device for drying glossy photos |
DE1187482B (en) * | 1961-06-07 | 1965-02-18 | Agfa Ag | Device for applying liquids, in particular in photographic processing machines |
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