Doctor device

Details Doctor device Doctor device

1981-11-30

1984-08-07

Coughenour, Clyde I.

Printing

Intaglio

Rotary

101169, 101365, B41F 910

Patent

active

044636750

ABSTRACT:
In a doctor device comprising a doctor blade which is applicable to a plate cylinder of a printing press and is located in a doctor holder, the holder is pivotally connected to a beam parallel thereto by at least one leaf spring. A plurality of piston-cylinder units disposed on the beam in a row have their piston rods applied directly or indirectly by way of pressure bolts to the holder or a part connected thereto. The piston-cylinder units are fed by a pressure medium at an adjustable basic pressure. Each piston-cylinder unit is associated with a separately adjustable fine regulating valve by way of which an additional pressure can be superimposed on the basic pressure by introducing additional pressure medium.

REFERENCES:
patent: 2920557 (1960-01-01), Fuchs
patent: 3057294 (1962-10-01), Jameson
patent: 3128207 (1964-04-01), Schmitt
patent: 3593663 (1971-07-01), Vischulis
patent: 3783781 (1974-01-01), Grommek
patent: 4040349 (1977-08-01), Jeschke

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