Bearing block mount for a photographic fluid spreading apparatus

Details Bearing block mount for a photographic fluid spreading apparatus Bearing block mount for a photographic fluid spreading apparatus

1977-02-28

1978-05-02

Gonzales, John

354 86, G03B 1750, G03D 902

Patent

active

040878317

ABSTRACT:
Photographic apparatus for spreading a fluid processing composition in a layer between a pair of superposed sheet elements of a self-developing type film unit to initiate formation of a visible image include a pair of roller type spreader elements having sheet-contacting surfaces rotatably mounted between spaced bearing blocks comprising a unitary piece structured to define first and second rigid sections. The first and second sections are flexibly coupled to facilitate movement of the second section towards and away from the first section. The bearing blocks integrally include means thereon which serve to establish a predetermined minimum spacing between the sheet-contacting surfaces of the spreader elements to facilitate an introduction of a leading edge of the superposed sheet elements therebetween. A spring element is associated with each of the bearing blocks and serves to continuously and resiliently urge the second section toward the first section of the bearing blocks. As the film unit is advanced between the sheet-contacting surfaces of the spreader elements, the second section is pivotally moved thereby away from the first section against the urging of the spring elements whereby one spreader element is displaced away from the other spreader element a distance greater than the predetermined minimum spacing to effect the processing composition dispensing and spreading functions.

REFERENCES:
patent: 3797026 (1974-03-01), Nesson et al.
patent: 3854809 (1974-12-01), Driscoll

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