GB586617A - Improvements in apparatus for developing photographic sensitised layers - Google Patents
Improvements in apparatus for developing photographic sensitised layersInfo
- Publication number
- GB586617A GB586617A GB2156544A GB2156544A GB586617A GB 586617 A GB586617 A GB 586617A GB 2156544 A GB2156544 A GB 2156544A GB 2156544 A GB2156544 A GB 2156544A GB 586617 A GB586617 A GB 586617A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- perforated
- endless
- band
- heater
- 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
- G03D7/00—Gas processing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
586,617. Photographic developing apparatus. HALL, HARDING, Ltd., BUNGAY, J. A., and FAUX, F. G. Nov. 3, 1944, No. 21565. [Class 98 (ii)] Photographic developing apparatus comprises a perforated hollow cylinder rotating in contact with an endless travelling band arranged to wrap round the major portion of the cylinder and effectively cover the perforations in that portion of the cylinder, with stationary means mounted in the interior of the cylinder for closing the lower portion and provided with pads or doctors for sealing that portion of the perforated cylinder not covered by the travelling band. As shown, the hollow perforated cylinder 1 mounted in bearings in the body 4 rotates in contact with the endless travelling band 2 tensioned on the rollers 3. A stationary semicylindrical trough 7 provided with sealing pads 8 seals the uncovered part of the cylinder. Ammonia solution may be vaporized in the cylinder 1 by the heater 6, or may be evaporated in an external unit and fed into the cylinder, the uncovered part of the cylinder being then sealed internally by any suitable device. The cylinder and endless band may be driven at different peripheral speeds to prevent uneven distribution of the gas. The heater 6 accelerates development and dries the drum surface at each revolution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2156544A GB586617A (en) | 1944-11-03 | 1944-11-03 | Improvements in apparatus for developing photographic sensitised layers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2156544A GB586617A (en) | 1944-11-03 | 1944-11-03 | Improvements in apparatus for developing photographic sensitised layers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB586617A true GB586617A (en) | 1947-03-25 |
Family
ID=10165041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2156544A Expired GB586617A (en) | 1944-11-03 | 1944-11-03 | Improvements in apparatus for developing photographic sensitised layers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB586617A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475809A (en) * | 1945-07-30 | 1949-07-12 | Paragon Revolute Corp | Gas developing machine for photosensitive sheets having automatic gas delivery |
US2542381A (en) * | 1949-06-07 | 1951-02-20 | Cellophane Sa | Device for developing photoreproductive papers |
US2625866A (en) * | 1949-08-05 | 1953-01-20 | Pease C F Co | Print developer |
US2761365A (en) * | 1951-09-11 | 1956-09-04 | Ozalid Co Ltd | Apparatus for developing photographic sensitised material |
WO1980002465A1 (en) * | 1979-05-07 | 1980-11-13 | R Hewelt | Method and arrangement for eliminating ammonia vapors from developed diazo copy material |
US4441803A (en) * | 1982-06-01 | 1984-04-10 | Northwest Blueprint & Supply Co. | Diazo copy machine with ammonia fume eliminator |
-
1944
- 1944-11-03 GB GB2156544A patent/GB586617A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2475809A (en) * | 1945-07-30 | 1949-07-12 | Paragon Revolute Corp | Gas developing machine for photosensitive sheets having automatic gas delivery |
US2542381A (en) * | 1949-06-07 | 1951-02-20 | Cellophane Sa | Device for developing photoreproductive papers |
US2625866A (en) * | 1949-08-05 | 1953-01-20 | Pease C F Co | Print developer |
US2761365A (en) * | 1951-09-11 | 1956-09-04 | Ozalid Co Ltd | Apparatus for developing photographic sensitised material |
WO1980002465A1 (en) * | 1979-05-07 | 1980-11-13 | R Hewelt | Method and arrangement for eliminating ammonia vapors from developed diazo copy material |
US4273435A (en) * | 1979-05-07 | 1981-06-16 | Robert K. Hewelt | Method and arrangement for eliminating ammonia vapors from developed diazo copy material |
US4441803A (en) * | 1982-06-01 | 1984-04-10 | Northwest Blueprint & Supply Co. | Diazo copy machine with ammonia fume eliminator |
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