Container suitable for holding a stack of photographic sheets

Details Container suitable for holding a stack of photographic sheets Container suitable for holding a stack of photographic sheets

1981-09-03

1983-06-21

Lowrance, George E.

Special receptacle or package

For plate or sheet

Fragile or sensitive

221232, 312 71, 354276, 354283, B65D 8530, G03B 1726

Patent

active

043889921

ABSTRACT:
The container for a stack of photographic sheets comprises spring means for biasing the sheet stack away from the bottom wall of the container and against retaining means at the front of the container, which comprises a peripheral flange or lip entering over only marginal portions of the front sheet so that the latter can be photographically exposed to a light-image while in the container. The lip is interrupted at opposed regions to permit the sheet to buckle when subjected to buckling forces preparatory to removal of the sheet from the container. Detent means are provided on the inner face of the retaining lip adjacent a pair of corners to prevent the buckled sheet from returning to its original flat condition.

REFERENCES:
patent: 934220 (1909-09-01), Sayles
patent: 2609219 (1952-09-01), Marano
patent: 3930264 (1975-12-01), Asano
patent: 4100559 (1978-07-01), Wareham et al.
R. W. Gunnell, "Prebuckle Back-Up Plate for Supply Cassette," IBM Technical Disclosure Bulletin, Aug. 1980, vol. 23, No. 3.

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