Cassette for rolls of photosensitive material

Details Cassette for rolls of photosensitive material Cassette for rolls of photosensitive material

1982-09-15

1984-08-21

Jillions, John

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 7546, B65H 1702, B65H 2306

Patent

active

044665792

ABSTRACT:
A cassette for winding and unwinding rolls of photographic paper has a rotatable shaft which traverses the cassette. A spool for supporting a roll of photographic paper is mounted on and circumscribes the shaft. The shaft is supported by a pair of opposite sidewalls of the cassette. Bearing rings are mounted in each of the sidewalls and the shaft carries a pair of bearing disks which respectively mate with the bearing rings. The bearing rings and disks are designed such that they form a braking system for the shaft. An overrunning clutch is arranged between the shaft and each of the bearing disks. The overrunning clutches are oriented so that the shaft rotates freely when photographic paper is being wound onto the spool. During unwinding of photographic paper from the spool, the clutches engage and the braking system for the shaft becomes operative.

REFERENCES:
patent: 1640532 (1927-08-01), Coldwell
patent: 1904411 (1933-04-01), Clayton
patent: 2787357 (1957-04-01), Segui
patent: 2877963 (1959-03-01), Hayden
patent: 4111379 (1978-09-01), Luscher
patent: 4221479 (1980-09-01), Harvey
patent: 4304369 (1981-12-01), Landsness

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