Device for cleaning cylinder bearers on printing presses

Details Device for cleaning cylinder bearers on printing presses Device for cleaning cylinder bearers on printing presses

1978-05-25

1979-07-31

Fisher, J. Reed

Printing

Cleaning attachments

101216, 184 3R, 101DIG10, B41F 3500, B41L 4100

Patent

active

041626524

ABSTRACT:
A device for continuously cleaning a bearer in a printing press which includes a carrier in the form of a plate pivoted on the frame for the movement toward and away from the bearer. Mounted on the end portion of the carrier, and oriented in a generally axial direction, is a first scraper in the form of a doctor blade of stiff but wearable material and a second scraper in the form of a relatively soft, lubricated bar of felt, the carrier being biased for simultaneous contact of the scrapers against the bearer surface. The first scraper is oriented at a slight angle with respect to the bearer axis so that the material which is scraped from the bearer tends to be urged sideways for continuous discharge. The second scraper occupies a pocket in the carrier so that it may be rotationally indexed into a new position in the pocket as its presented edge becomes worn. A first stop interposed in the path of movement of the carrier prevents the carrier from scraping against the surface of the bearer as the scrapers are worn away. A second or latching stop is provided for latching the carrier in upraised position against the force of bias to facilitate cleaning the cylinder.

REFERENCES:
patent: 449856 (1891-04-01), King
patent: 1027559 (1912-05-01), Miner
patent: 1120840 (1914-12-01), Niles
patent: 3229787 (1966-01-01), Henley
patent: 3408934 (1968-11-01), Clausen
patent: 3785289 (1974-01-01), Davidson, Jr.

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