Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent
1978-11-15
1982-02-09
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Identifying, composing, or selecting
354 4, 354121, 355 73, 355 77, G03B 2752
Patent
active
043147585
ABSTRACT:
A special effects photographic printing easel arrangement comprising a circular easel bed mounted on a portable base for rotational adjustment about the axis of the easel, with the device including a releasable locking arrangement to selectively hold the easel bed against rotation, and the easel bed being mounted for use in a horizontal plane or optionally tilted relative to the horizontal at any position about the easel axis. The easel bed has its upper printing surface equipped with a scale of angular subdivisions radially disposed thereabout that cooperate with a stationary datum marker mounted on the base and cooperating with the rim of the easel bed, and a set of circular masks for making multi images of a predetermined but variable whole number, which governs the mask employed, in a circular pattern about the printing paper. The scale of the easel bed, the masks, and the stationary datum marker are integrated in an index system for forming the selected number of images one at a time in a circular pattern about the printing paper. The easel arrangement is also equipped for convex and concave shaping of printing paper for arcuate printing effects as well as for standard flat printing purposes.
REFERENCES:
patent: 2830491 (1958-04-01), Domeshek
patent: 2981148 (1961-04-01), Sausele
patent: 3004469 (1961-10-01), Broyer
patent: 3072014 (1963-01-01), Rawstron
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