Photocopying – Projection printing and copying cameras – Detailed holder for original
Patent
1992-07-27
1993-10-26
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Detailed holder for original
355 54, 352 80, 352123, 352 50, 352 51, 352 52, G03B 2762
Patent
active
052570665
ABSTRACT:
A mounting assembly for a film drive unit used with photographic film printers. A mount base having a central aperture is adapted to be secured proximate the optical stage of a photographic printer. A pair of substantially parallel rails are attached to the mount base and oriented so as to lie substantially in the plane of the mount base. A pair of carrier blocks having upwardly projecting cradle portions are mounted for sliding movement on respective rails. An outwardly projecting keeper shaft is secured to the mount base and has a pair of keeper pins adapted to extend away from the shaft. A brace member supports a film drive assembly proximate the central aperture and has a pair of pins positioned on opposite sides so as to engage the cradle portions of corresponding carrier blocks. At least one spring-biased retaining element is disposed in the cradle portion of each carrier block. A selector mechanism is rotatably secured to the brace member via an outwardly extending selector shaft and has a plurality of outwardly extending tab members adapted to be secured at varying distances from the brace member. Each tab member is configured to releasably engage the keeper pins. This apparatus allows the position of the film drive relative said central aperture to be varied and to be pivoted as the pins of said brace member rotate within the cradle portions.
REFERENCES:
patent: Re28046 (1974-06-01), Renold
patent: 4908657 (1990-03-01), Kogane
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