Sheet guide apparatus for diazo copying machines

Details Sheet guide apparatus for diazo copying machines Sheet guide apparatus for diazo copying machines

1877-09-29

1979-03-13

Hix, L. T.

Photocopying

Contact printing

Machine

354318, 354339, G03B 2730, G03D 506

Patent

active

041439694

ABSTRACT:
A guide means is provided for guiding diazotype copy sheet material through a developing apparatus over and in contact with a pair of rotatable applicator rollers positioned in axially spaced apart parallel relation. Developer liquid is supplied to the surface of the rollers for developing the copy sheet. The guide means includes a first and a second set of fine, filament-like guide wires strung taut across the rollers in the direction of movement of the sheet material through the developing apparatus. The guide wires of each set are positioned in spaced apart parallel relation, and the wires of one set are offset axially from the wires of the other set. The guide wires prevent the sheet material from becoming wrapped about the applicator rollers during passage of the material through the developing apparatus.

REFERENCES:
patent: 1900878 (1933-03-01), Hopkins
patent: 3386730 (1968-06-01), Hyosaka
patent: 3704662 (1972-12-01), Johnson et al.
patent: 3707328 (1972-12-01), Robertson

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