Ink duct for offset or letterpress printing machines

Details Ink duct for offset or letterpress printing machines Ink duct for offset or letterpress printing machines

1986-10-28

1988-03-08

Burr, Edgar S.

Printing

Inkers

Roller

101365, B41F 3100

Patent

active

047293128

ABSTRACT:
Ink duct for offset or letterpress printing machines has an ink metering device by which a respective ink gap is adjustable zonewise in the axial direction of an ink duct roller. The ink metering device has metering elements pressable against the ink duct roller through the intermediary of a foil covering the metering elements, the foil being fastened so as to be movable tangentially to the ink duct roller. A device is provided for holding the foil, and an adjusting device is coupled with a motorized drive an engageable with the foil holding device for progressively moving the foil tangentially to the ink duct roller at a substantially uniform feed rate so as to dispose succeeding locations of the foil at a given distance from the ink duct roller corresponding to the width of the respective ink gap.

REFERENCES:
patent: 3100560 (1963-08-01), Kondur, Jr.
patent: 4242958 (1981-01-01), Jeschke
patent: 4387648 (1983-06-01), Jeschke et al.
patent: 4442775 (1984-04-01), Jentzsch
patent: 4480547 (1984-11-01), Jeschke et al.
patent: 4495864 (1985-01-01), Junghans

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