Device to position a copy master in a copying apparatus

Details Device to position a copy master in a copying apparatus Device to position a copy master in a copying apparatus

1983-03-29

1984-11-20

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for original

226 48, 352221, 355 99, G03B 2762, G03B 2764

Patent

active

044836120

ABSTRACT:
Two pairs of pivotable flap clamps are arranged on a copy master stage in the area of its exposure window, each pair having flaps respectively disposed above and below the master plane. The pairs of flaps are driven by means of an electromagnet and can be symmetrically opened and closed relative to the master plane. In their closed state, the flaps hold the copy master on two opposing sides with their front edges. Additionally, spring elastic hold-down strips are provided to hold the copy master on its lateral sides. By means of the bilateral clamping of the copy masters with the two pairs of flap clamps, an absolutely flat position of the copy master is obtained. The positioning device is particularly suitable for processing copy masters in which short strips of film or individual images are spaced apart on a carrier strip.

REFERENCES:
patent: 2110475 (1938-03-01), Schubert
patent: 2174020 (1939-09-01), Sumner
patent: 2248646 (1941-07-01), Small
patent: 3132560 (1964-05-01), Pignone et al.
patent: 3488120 (1970-01-01), Nagel

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