Automatic picture masking device

Details Automatic picture masking device Automatic picture masking device

1979-03-29

1980-11-18

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for photosensitive paper

354 4, G03B 2758

Patent

active

042342511

ABSTRACT:
An automatic masking device for use in a composer, wherein an original picture is held against a transparent plate, which comprises a plurality of opaque maskingsheets which are adapted to move inwards along the surface of the transparent plate from its edges, driven by drive means which is controlled by detectors which are mounted on the inside edges of at least some of the masking sheets.

REFERENCES:
patent: 3494695 (1970-02-01), Sollima et al.
patent: 3737227 (1973-06-01), Harter et al.
patent: 4135810 (1979-01-01), Walter

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