Cylinder moistening device

Details Cylinder moistening device Cylinder moistening device

1975-09-17

1976-11-09

Burr, Edgar S.

Printing

Planographic

Dampeners

101425, 239431, 239432, 239563, B41L 2506

Patent

active

039903656

ABSTRACT:
A device is provided for moistening the plate cylinders of offset printing machines. The device includes an inner rotatable sleeve having an air passage extending therethrough. Angularly extending passages are provided in the inner sleeve. The inner sleeve is rotatable within an outer fixed cylinder having spaced apertures all directed in the same direction. A film of water flows over the fixed cylinder. As the inner sleeve rotates air is forced through the inclined passage to force the water against a focus upon a diffuser which breaks the water up into a fine spray which is deposited upon the surface of a water cylinder so that the water is deposited from end to end thereof so that the plate is provided with a film of water throughout its length.

REFERENCES:
patent: 2622520 (1952-12-01), Hanser et al.
patent: 2689523 (1954-09-01), Koch
patent: 2853941 (1958-09-01), Brandt et al.
patent: 2865671 (1958-12-01), Jensen
patent: 2994482 (1961-08-01), Valois et al.
patent: 3143065 (1964-08-01), Warczak
patent: 3182867 (1965-05-01), Barosko et al.
patent: 3233997 (1966-02-01), Moreau
patent: 3411718 (1968-11-01), Wagner
patent: 3795368 (1974-03-01), Larah

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