Device for applying pressure to developer distributing means in self-development type cameras
US4044366A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1974 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | Oct 29, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/52
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.