Mechanism for selectively engaging the doctor blade with the was

Details Mechanism for selectively engaging the doctor blade with the was Mechanism for selectively engaging the doctor blade with the was

Filed on

1992-06-05

Date issued

1993-05-11

Examiner

Burr, Edgar S.

Patent Class

Printing

SubClass

Cleaning attachments

Other Related Categories

101DIG47, 101423, B41F 3506

Type

Patent

Status

active

Patent number

052091643

Description

ABSTRACT:
A mechanism for selectively engaging the doctor blade in a washer for the blanket cylinder of a printing press. The mechanism permits independent control of doctor blade engagement and, through the use of a plurality of adjustably mounted fluid pressure actuators spaced along the length of the doctor blade, facilitates accurate blade alignment, thus preventing non-uniform wear of the doctor blade and the washer roller.

REFERENCES:
patent: 3521561 (1970-07-01), Pali et al.
patent: 4328748 (1982-05-01), Schramm
patent: 4782756 (1988-11-01), Howard
patent: 4870900 (1989-10-01), Robertson
patent: 5003876 (1991-04-01), Harrison et al.
DE-Z Der Polygraph 21-72, Seite 1512, 1514.

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