Optics: image projectors – Transparent plate – Plate part of film gate
Patent
1976-04-16
1977-09-20
Stephan, Steven L.
Optics: image projectors
Transparent plate
Plate part of film gate
353 27R, 353 95, G03B 148, G03B 2114
Patent
active
040493415
ABSTRACT:
A film carrier device for a microfilm reader includes a rectangular transparent flat base plate having a pair of laterally spaced parallel longitudinally extending guide members located along opposite side top borders of the base plate. The rear inside faces of the guide members diverge rearwardly and have longitudinal grooves extending for the full lengths of their bottoms and the grooves may extend likewise for the full lengths of the guide member inside faces. A transparent cover plate is hinged along its forward edge to the forward border of the base plate and is swingable between a closed position overlying the base plate and a rearwardly upwardly inclined open position. A pair of laterally spaced film stops project upwardly from the base plate proximate its rear portions and a pair of leaf spring film engaging clips are disposed proximate the guide member front ends or proximate the film stops. Openings are formed in the cover plate to register with the stops and film clips when the cover plate is in closed position.
REFERENCES:
patent: 3790266 (1974-02-01), Ueda et al.
patent: 3967890 (1976-07-01), Wells
Toriumi Shiro
Yamagishi Seiichi
Minolta Camera Kabushiki Kaisha
Stephan Steven L.
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