GB541889A - Improvements in or relating to rapid photographic processing apparatus - Google Patents
Improvements in or relating to rapid photographic processing apparatusInfo
- Publication number
- GB541889A GB541889A GB1036140A GB1036140A GB541889A GB 541889 A GB541889 A GB 541889A GB 1036140 A GB1036140 A GB 1036140A GB 1036140 A GB1036140 A GB 1036140A GB 541889 A GB541889 A GB 541889A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casing
- film
- channel
- chambers
- helical
- 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
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
- G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/02—Details of liquid circulation
- G03D3/06—Liquid supply; Liquid circulation outside tanks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
541,889. Photographic film processing apparatus. BAIRD TELEVISION, Ltd., and COLLIER, T. W. June 14, 1940, No. 10361. [Class 98 (ii)] The apparatus comprises an inner cylindrical casing, disposed in use with its axis horizontal, and having a helical channel along which the film is continuously driven, and an outer casing forming a liquid-tight closure with the channel, the convolutions providing a series of compartments in which successive treatments may be applied to the film. In the form shown, for processing kinematograph film, the channel is formed by an inner tubular member 1 having a helical rib 2 the edge 3 of which may be covered with rubber making liquid-tight contact with an outer cylindrical casing 4 the axis of which is horizontal in use. The member 1 is slotted between the helical turns to afford egress by way of the bore 22 for developing &c. liquids introduced through pipes 18, 20, 21 into the various chambers between the turns ; and it is preferably eccentrically disposed above the axis of the casing 4 in order to provide for a greater depth of liquid in the chambers. The film 10 is fed by a sprocket 8 through an aperture 11 into one end of the casing 4, and its edges engage in continuous slots 5 formed in the sides of the helical rib ; it is driven along the helical channel by sprockets 7 on a hand or motor driven shaft 6 geared at 9 to the shaft of the sprocket 8 ; and it leaves the other end of the casing 4 through a slot 12 after treatment. Chambers 13 and 14 may be interconnected and contain developer, 15 and 17 may contain washing water, and 16 fixing liquid. Drain cocks are provided in the base of the casing 4. For cleansing, the apparatus may be flushed by water fed into the pipe 22 and leaving by way of the drain cocks. An additional compartment may be provided through which air is circulated for drying the film. In a modification, the channel is formed by a drawn section of sheet metal helically wound on an inner casing, the adjacent turns being held in place by a continuous helix of moulded rubber wound therebetween. In this form, the various liquids are fed into the chambers formed by the convolutions by pipes within the inner casing, and overflow therefrom through outlets directly into said casing, drain cocks being provided as before in the base of the outer casing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1036140A GB541889A (en) | 1940-06-14 | 1940-06-14 | Improvements in or relating to rapid photographic processing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1036140A GB541889A (en) | 1940-06-14 | 1940-06-14 | Improvements in or relating to rapid photographic processing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB541889A true GB541889A (en) | 1941-12-16 |
Family
ID=9966424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1036140A Expired GB541889A (en) | 1940-06-14 | 1940-06-14 | Improvements in or relating to rapid photographic processing apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB541889A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2478896A (en) * | 1946-05-08 | 1949-08-16 | Edward S Cobb | Fluid treatment apparatus with rotary film guide |
US2492133A (en) * | 1946-04-17 | 1949-12-27 | Edward S Cobb | Fluid treatment apparatus for continuous films |
EP0571006A1 (en) * | 1992-03-24 | 1993-11-24 | Kodak Limited | Guide apparatus |
-
1940
- 1940-06-14 GB GB1036140A patent/GB541889A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2492133A (en) * | 1946-04-17 | 1949-12-27 | Edward S Cobb | Fluid treatment apparatus for continuous films |
US2478896A (en) * | 1946-05-08 | 1949-08-16 | Edward S Cobb | Fluid treatment apparatus with rotary film guide |
EP0571006A1 (en) * | 1992-03-24 | 1993-11-24 | Kodak Limited | Guide apparatus |
US5396307A (en) * | 1992-03-24 | 1995-03-07 | Eastman Kodak Company | Guide apparatus |
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