| 摘要 |
1,154,580. Photographic processing apparatus. PHOTOMATON G.C.S.A. Sept. 30, 1966 [Oct. 1, 1965; July 6, 1966], No.43879/66. Heading G2A. A photographic processing apparatus comprises a tank having side walls 1, and divided into compartments 4 by partitions 2. Each compartment has a pair of opposed slots 5 in the upper edges of the wall portions, for supporting the conveyer assemblies, one to each compartment. Each assembly is built up between a pair of side plates 13a, 13b, and consists of three sets of three rollers each. The rollers of each set are biased together by rubber bands 15. The uppermost central roller of each assembly is mounted on a shaft 8 fitting into H-shaped bearings 6a, 6b at each end. These bearings slide vertically into the slots 5, and so can readily be removed for cleaning, and replaced. Shaft 8 is also the driving shaft, and all the rollers in each assembly are driven from shaft 8 by a chain 19. One end of shaft 8 extends into a housing 22, where it engages, via a pair of bevel gears (23, 24, Fig. 5 not shown) with a motor-driven transmission which has inter-engaging dog-elements 26a, 26b. Thus when all the dog-elements are in engagement, the drive from the motor is transmitted to all the conveyer assemblies. When an assembly is to be removed, the inter-engaging parts of the dog-elements are oriented to a vertical position, so that the parts simply slide out of engagement as the assembly is lifted vertically out of the tank. The film strip being processed is passed down into one compartment and then up again, and is guided into the next compartment by a semicircular bridge (30, Fig. 6 not shown), where at the same time it can be briefly exposed to illumination from a lamp (35) and filter (36) as part of the processing. The processing apparatus can be part of a selfcontained photographic booth in which, in order to accommodate a lens system of longer focal length, the optical system of Fig. 8 (not shown) is used, which at the same time rectifies the image. |
