Ink duct for printing presses

Details Ink duct for printing presses Ink duct for printing presses

1985-03-06

1986-04-29

Burr, Edgar S.

Printing

Inkers

Roller

101365, B41F 3100

Patent

active

045849412

ABSTRACT:
An ink duct for a printing press having an ink knife forming a bottom part thereof which is adjustably movable relative to an ink-duct roller, respective ink-duct jaws being disposed at opposite sides of the ink knife and defining therewith and with the ink-duct roller an inner space for receiving a supply of ink therein includes a sealing surface formed on the ink-duct jaws for sealing the ink-duct jaws with the cylindrical surface of the ink-duct roller, the sealing surface being a surface in contact with the cylindrical surface of the ink-duct roller and having a width equal to part of the width of the respective ink-duct jaw, the contact surface having a spiral construction with respect to the ink-duct jaw so that a trailing end of the contact surface, as viewed in rotary direction of the ink-duct roller, faces towards the inner space of the ink duct.

REFERENCES:
patent: 3135197 (1964-06-01), Dutro et al.
patent: 3339485 (1967-09-01), Rytterholm
patent: 4165688 (1979-08-01), Leanna et al.
patent: 4361089 (1982-11-01), Wittkopf et al.
patent: 4366754 (1983-01-01), Sarda

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