Cleaning system of printing press

Details Cleaning system of printing press Cleaning system of printing press

1989-08-15

1990-05-08

Burr, Edgar S.

Printing

Cleaning attachments

101156, 101168, 101423, B41F 3500, B41L 4100

Patent

active

049228218

ABSTRACT:
In a combination of a cleaning device of a cylinder of an offset sheet-fed press and a cylinder to be cleaned, the cleaning device is provided with a blade member as a cleaning cloth pressing member against the cylinder to be cleaned, the blade member having a relatively sharp edge pressing the cleaning cloth against the cylinder. The cylinder is an impression cylinder provided with sheet holding grippers projecting over the outer peripheral surface of the impression cylinder. The grippers are protected so as not to directly contact the cleaning cloth under the pressed condition by locating cam members to cover the grippers or by locating a cleaning device moving mechanism in a manner such that when the grippers approach the blade member during the rotation of the impression cylinder, the cleaning device is moved away therefrom.

REFERENCES:
patent: 907577 (1908-12-01), Diehl
patent: 1197182 (1916-09-01), Chisholm
patent: 2225529 (1940-12-01), Beall
patent: 3126826 (1964-03-01), Fischer
patent: 3592136 (1971-07-01), Selman
patent: 3763778 (1973-10-01), Sills et al.
patent: 3956987 (1976-05-01), Alix
patent: 4135448 (1979-01-01), Moestue
patent: 4232604 (1980-11-01), Waizmann
patent: 4389936 (1983-06-01), Jaffa et al.
patent: 4433623 (1984-02-01), Beckim
patent: 4537130 (1985-08-01), Theilacker
patent: 4651644 (1987-03-01), Kaempfe et al.
Xerox Disc. Journ., Vock, "Cleaning Device", vol. 4, No. 2, Mar./Apr. 1979, pp. 263-264.
Xerox Disc. Jour., "Web Cleaning System", Sonnenberg, vol. 4, No. 6, Nov./Dec. 1979, p. 707.

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