Advancing material of indeterminate length – By intermittent material-mover – Comprising material-moving roll
Patent
1979-01-26
1981-02-24
Hix, L. T.
Advancing material of indeterminate length
By intermittent material-mover
Comprising material-moving roll
354328, 226188, 74421R, G03D 313
Patent
active
042524296
ABSTRACT:
A film development machine, having plural film treatment tanks capable of containing fluids therein for the development of a film transported therethrough by plural transport roller racks, which are small in size, capable of use in areas of limited access by permitting the film to be introduced into, and to be delivered from the machine, from the same side, and especially well adapted to develop films which are relatively small in length and width. The roller racks have a plurality of rollers forming an essentially non-linear film travel path between machine inlet and outlet. The rollers are closely spaced so that films of relatively small size can safely and reliably pass therethrough. Close roller spacing is maintained by providing rollers of different diameters, which compensate for the curvature of the path of film travel, and a gear drive system which drives nip forming pairs of rollers from alternating sides of the roller rack. The gear drive system is capable of efficiently driving the increased number of rollers. This system comprises roller drive gears which coaxially rotate each of the rollers, intermediate gears which coaxially rotate roller drive gears, and power gears which serially rotate the intermediate gears, either through direct, meshing engagement or through transfer gears which are in meshing engagement therewith. The power gears of each roller rack are operated from a common drive train, providing a completely geared roller drive system.
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Hope Henry F.
Hope Stephen F.
Hix L. T,.
Mathews Alan
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