Card – picture – or sign exhibiting – Photographic transparency viewer – e.g. – x-ray viewer
Patent
1981-05-21
1983-03-01
Mancene, Gene
Card, picture, or sign exhibiting
Photographic transparency viewer, e.g., x-ray viewer
G02B 2702
Patent
active
043751326
ABSTRACT:
A slide filing and retrieval system characterized in the provision of a book-like file having vertical front and rear sidewalls between which a series of transparent slide carrier sheets are supported for selective swinging movement in a vertical plane through the open top and open end of the file to a viewing position above the open top of the file in front of the illuminated transluscent screen of a viewing stand on which the file is supported. The upper end of the viewing stand has a downwardly depending clamp to releasably clamp any selected slide carrier sheet in viewing position in front of the illuminated transluscent screen. Each slide carrier sheet has a plurality of pockets from and into which slides may be selectively withdrawn or inserted when the sheet is in clamped viewing position.
The file is further provided with non-swingable interleaf sheets interleaved between the slide carrier sheets to facilitate swinging in and swinging out of selected slide carrier sheets without interference by the pocket openings and edges of the slides therein.
REFERENCES:
patent: 1172426 (1916-02-01), Caldwell
patent: 1287196 (1918-12-01), Black
patent: 2821037 (1958-01-01), Westphal
Contreras Wenceslao J.
Mancene Gene
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