Photocopying – Projection printing and copying cameras – Detailed holder for original
Patent
1982-05-14
1984-04-17
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Detailed holder for original
354121, 354275, 355 64, G03B 2762, G03B 2764
Patent
active
044431007
ABSTRACT:
Apparatus is provided for positioning and releasably holding a disk film having a multiplicity of radially disposed negatives. Three embodiments of this apparatus are disclosed and each is of a low speed, probably manually actuated, and having a support base and a driver disk member rotatably carried by the base. This driver disk moves a rotatably carried support disk having a circular support ring providing an underside support of a film disk. On and in the support base is formed an aperture providing an illuminating pathway and adjacent to this aperture is formed and provided longitudinal supports for the underside of the film disk. This film disk is releasably mounted on a pin and the support disk is provided with a drive pin that moves the film disk to be rotated with the support disk. Two pins are provided with cam lifting ends. These pins engage cutouts in the film to position the film in the desired position. A lift member is pivotally carried by the support base and has an aperture formed therein, this lift finger is biased toward the support base and has an aperture therein which is in coincidence with the aperture in the support base when the lift finger is in a gripping condition to bring the outer surface of the film to the support base and support disk to hold the film locally for illuminating exposure. The drive may be through frictional means, by a timing belt or through toothed gears either meshed or with an idler therebetween. A third disk is rotated by a gear or belt and includes cam cutouts engaged by a tongue portion of a lift member. The positioning pins that engage cutouts in the film are not necessarily used with the cam actuation of the lift finger by this third disk.
REFERENCES:
patent: 2494495 (1950-01-01), Tait et al.
patent: 3292485 (1966-12-01), Mey
patent: 4203664 (1980-05-01), Clifton et al.
patent: 4204733 (1980-05-01), Modney et al.
Design Controls Corporation
Roberts Ralph R.
Wintercorn Richard A.
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