Advancing material of indeterminate length – By intermittent material-mover – Comprising material-moving roll
Patent
1987-07-13
1988-08-09
Mathews, A. A.
Advancing material of indeterminate length
By intermittent material-mover
Comprising material-moving roll
354339, 226 92, 226170, 226196, G03D 313
Patent
active
047631520
ABSTRACT:
A photographic film processing rack is adapted to be immersed in a processing liquid tank. The processing rack includes four identical rack panels which combine to form two oppositely spaced pairs of mating vertical rack panels, each pair defining between its mating panels a vertical belt path and at least one vertical film process channel. An endless timing belt extends over a drive sprocket at the top of the processing rack, over an idler sprocket at the bottom of the processing rack, and along the vertical belt paths defined by the respective opposite pairs of mating rack panels. The timing belt has inner teeth for positive engagement with the sprockets and outer teeth for positive engagement with a flexible film leader card to which at least one exposed filmstrip is secured. Rotation of the drive sprocket advances the timing belt continuously along the belt paths to pull the exposed filmstrip down a vertical process channel in one of the opposite pairs of rack panels and up a similar channel in the other pair of rack panels. The rack panels, sprockets, and all the other components are supported by four identical end blocks on the four corners of the assembly. The several parts all fit together in an interlocking manner without the use of load-bearing or metallic fasteners.
REFERENCES:
patent: 1177697 (1916-04-01), Gaumont
patent: 1967889 (1930-08-01), Kitroser
patent: 2853294 (1957-12-01), Woodcock
patent: 3388653 (1965-07-01), Mayfield
patent: 4295728 (1981-10-01), Nishimoto
patent: 4613221 (1986-09-01), Takase et al.
patent: 4666279 (1987-05-01), Fujita
Eastman Kodak Company
Fields Roger A.
Mathews A. A.
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