Vacuum positioning system for use in composing a plate for offse

Details Vacuum positioning system for use in composing a plate for offse Vacuum positioning system for use in composing a plate for offse

1977-02-14

1982-11-30

Pieprz, William

Printing

Printing members

Plate mountings

355 94, B41F 2704

Patent

active

043610919

ABSTRACT:
A positioning system for quickly aligning and securing material to be composed for preparation of a plate for offset printing, such apparatus including a light source under a transparent support having alignment means on which background material, a template with nonlinear slots for aligning multilined overlay information, and overlay material for insertion into such nonlinear slots are positioned, all such material being held in place by vacuum.

REFERENCES:
patent: 2672080 (1954-03-01), Davidson
patent: 3264106 (1966-08-01), Alldis
patent: 3499377 (1970-03-01), Esses
patent: 3512487 (1970-05-01), Kranz et al.
patent: 3771870 (1973-11-01), Taylor
patent: 3913118 (1975-10-01), Abrams
patent: 3945879 (1976-03-01), Fletcher et al.
patent: 3949295 (1976-04-01), Moorshead
patent: 4034517 (1977-07-01), Weatherell et al.

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