Advancing material of indeterminate length – By intermittent material-mover – Comprising material-moving roll
Patent
1980-12-12
1982-04-27
Hix, L. T.
Advancing material of indeterminate length
By intermittent material-mover
Comprising material-moving roll
226184, 226189, G03D 313
Patent
active
043267912
ABSTRACT:
A photoprocessor for photosensitive webs includes a plurality of tanks containing photoprocessing solution and a dryer. The web is transported through the tank by a plurality of opposed spaced pairs of oppositely oriented driven tapered rollers. The transport speed of the web through the tank is determined by a pair of opposed cylindrical rollers at the exit of the last tank. The cylindrical rollers are driven at a tangential velocity which is approximately equal to the tangential velocity at the centers of the tapered rollers. A loader at the inlet end of the processor includes driven and idler rollers which are normally out of engagement and which are brought into engagement to drive the web into the processor for a selected time period when the web is first sensed at the inlet end of the processor.
REFERENCES:
patent: 3760705 (1973-09-01), Miller
patent: 3830419 (1974-08-01), Lee
patent: 3922701 (1975-11-01), Geyken et al.
patent: 4032943 (1977-06-01), Zwettler
patent: 4086607 (1978-04-01), Muller
patent: 4143959 (1979-03-01), Fischer
patent: 4174901 (1979-11-01), Takita et al.
Anderson Conrad V.
Beer Robert E.
Hix L. T,.
Mathews Alan
Pako Corporation
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