Cleaning and liquid contact with solids – Apparatus – Sequential work treating receptacles or stations with means...
Patent
1980-01-17
1981-02-03
Hix, L. T.
Cleaning and liquid contact with solids
Apparatus
Sequential work treating receptacles or stations with means...
134 64P, G03D 313
Patent
active
042485169
ABSTRACT:
A multiple compartment photographic processor particularly adapted to facilitate threading a web to be processed through a predetermined web processing path traveling successively from one processing compartment to another. The ultimate processing web path is defined by two sets of web engaging rollers, one set constitutes web driving rollers mounted above the perspective compartments and the other set constitutes weighted idler rollers positioned in proximity to the bottom of the respective compartments and supported by flexible tape and pulley support systems designed to counterbalance only a portion of the respective weighted rollers. An initial substantially planar threading web path is provided by elevating the idler rollers above the driving rollers to permit the leading end of the web to be passed between the two sets of rollers directly to a takeup roller. The driving rollers are respectively driven through individual clutch mechanisms which are responsive to the positions of weighted idler rollers within their respective compartments so that the clutches are actuated whenever the idler rollers are in their lower-most positions in the compartments and are deactivated when said idler rollers are raised above their lower-most positions. The clutch for the driving roller delivering the web into the next compartment remains disengaged whenever the idler roller in the next preceeding compartment is above its extreme lower position. The clutch arrangement controlled by the idler roller in the last compartment controls the driving connection to the final takeup roller and the entire web transport system constitutes a self-adjusting tension equalizing drive mechanism for the web through its operative processing web path during the operation of the processor unit.
REFERENCES:
patent: 1385403 (1921-06-01), Sentou et al.
patent: 1946841 (1934-02-01), Ybarrondo
patent: 1967889 (1934-07-01), Kitroser
patent: 2853294 (1958-09-01), Woodcock
patent: 3533349 (1970-10-01), Schmidt
patent: 3602125 (1971-08-01), Hersh
Adams John W.
Hix L. T,.
Mathews Alan
Pako Corporation
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