671,564. Kinematograph film liquid spraying apparatus ; imbibition printing processes. TECHNICOLOR MOTION PICTURE CORPORATION. Jan. 27, 1950 [March 22, 1949], No. 2173/50. Class 98 (ii). [Also in Group VIII] Apparatus for spraying kinematograph film with a liquid and comprising means for guiding the film with its recording-carrying side downwards and a series of upwardly-directed nozzles distributed along its path for spraying the lower side of the film, is characterized in that the entrant end of the path is higher than the emergent end so that the film inclines downwardly throughout the path and means are provided for selectively opening said nozzles to vary the number of jets impinging on the film. Preferably the lower side of the film is convex lengthwise of the path and the guiding means comprises a series of rollers along the upper side of the film opposite the jets so that at each jet the film is backed by a roller, the nozzles having flat outlets extending across the width of the film. As shown, a dye-soaked imbibition matrix F is fed to the apparatus for controlled removal of excess dye and passes between rollers 3, 4 along a downwardly concave path backed by rollers and then passes between rollers 6, 7 to follow a straight path defined by rollers 8 to 9 whereafter it leaves the apparatus. Adjacent each roller in the upper part 1 of the apparatus is arranged a nozzle 21 which produces a flat fan-shaped jet of water extending across the width of the matrix, pairs of jets being screw-adjustably mounted in T-shaped chambers 22 which are fed from a supply manifold 26 provided with a supply pipe 27 and each pipe having a valve 29 controlled by a diaphragm 31 actuated by an air pressure line controlled by a valve 36 which may be controlled manually or by means of a solenoid. The nozzles adjacent each roller in the lower part 2 of the apparatus are fixed in a manifold 37 supplied by a pipe 38 from the manifold. 26. Drains 41, 42 for the upper part 1 and a drain 39 for the lower part 2 of the apparatus are provided. Window openings with bent-over flange edges are provided, and are closed by metalframed transparent plates 14 provided with sealing gaskets and a threaded bolt which passes through a leaf-spring 18 bearing on the margins of the window openings, so that by tightening a wing-nut on the bolt the plate 14 seals the opening. By loosening the wing-nut, the plate 14 may be removed to facilitate threading the matrix. After washing the matrix F is fed into contact with a blank film Fl and thence to a registering pin belt 11 to effect imbibition printing.
展开▼
