| 摘要 |
<p>In a photographic processing machine the processing is performed in a tube wound in the shape of a helix of a specific cylindrical diameter. All know photographic roll films: negative, positive, black-and-white and colour may be processed in a closed continuous system in which the film does not come into contact with mechanically moving parts which could damage the film. The invention provides the greatest possible cleanliness during the processing and enables simplified and refined servicing work to be performed. An IMPELLER ((4) of figs. 2, 3, 4) mounted on a rotating shaft, moves the film through the helix tube, the film being firmly attached to the RUNNER ((3) fig. 2). The PROCESSING TIME will determine the cylindrical diameter of the helix, the length of the helical tube and the speed of rotation of the shaft. In order to achieve a high daily output of processed roll films these parameters may be adjusted whereby the number of parallel processes is varied to give the desired diurnal production. The rotating shaft is driven by a prime mover, for instance an electric motor with a gear to give a suitable speed of rotation.</p> |
