Device for applying pressure to developer distributing means in

Details Device for applying pressure to developer distributing means in Device for applying pressure to developer distributing means in

1974-10-29

1977-08-23

Braun, Fred L.

354304, G03B 1750, G03D 902

Patent

active

040443663

ABSTRACT:
A device for applying pressure to a pair of developer distributing rollers in a self-development type photographic camera utilizes a pair of bell crank levers provided in the vicinity of the ends of the rollers for pressing one roller onto the other. The ends of the shaft of the roller which is movable in the direction to change the pressure between the pair of rollers are each engaged with one of the bell crank levers. A spring or springs are engaged with the bell crank levers to urge the bell crank levers in the direction to press one roller onto the other. The pressure between the rollers is changed by changing the tension of the spring or springs.

REFERENCES:
patent: 2638828 (1953-05-01), Bachelder et al.
patent: 2873659 (1959-02-01), Bing et al.
patent: 3142243 (1964-07-01), Land
patent: 3264962 (1966-08-01), Dieffenbach
patent: 3369473 (1968-02-01), Bartlett
patent: 3561340 (1971-02-01), Erlichman
patent: 3641908 (1972-02-01), Eloranta
patent: 3776118 (1973-12-01), Driscoll et al.

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