Device for duplicating microfilms or microfiches

Details Device for duplicating microfilms or microfiches Device for duplicating microfilms or microfiches

1986-01-22

1988-04-12

Hayes, Monroe H.

Photocopying

Contact printing

Machine

355106, G03B 2722

Patent

active

047378263

ABSTRACT:
The device for duplicating microfilms or microfiches comprises an exposure section (4), a separating means (8) in which the two components (2,3) of the film material, viz. film original (2) and copying film (3) are mutually separated in the film plane during the further advance by a marginal guide means or keep-off plate (23) so that the copying film (3) immediately gets into the developing section (9) while the film original (2) is discharged laterally. The separating means (8) consists of an inclined roller assembly of two groups of transport rollers (12a, 12b, 12c; 13a, 13b) provided at both sides of the film material (2,3) and of which one group of at least two transport rollers (13a, 13b) is arranged in such a way that their roller axes (16a, 16b) extend obliquely relative to the opposite three lower transport rollers (12a, 12b, 12c). The transport roller groups mounted on both sides of the film material are staggered while their mutual distance is as close as to permit a comb-like meshing of the roller peripheries thus causing the film material (2,3) to wavily pass therethrough.

REFERENCES:
patent: 3709596 (1973-01-01), Ulmer

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