Liquid application system

Coating apparatus – Solid applicator contacting work – With work-handling or work-supporting

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Details

118227, 118262, B05C 108

Patent

active

043845444

ABSTRACT:
For applying a liquid, such as liquid wax, to a continuously fed sheet material a first pair of cylindrical rollers, each having a smooth surface which is exposed to and wetted by the liquid to be applied, are rotatably mounted about substantially parallel axes and spaced apart to permit intimate tangential contact therebetween with both sides of the sheet material to be coated. A second pair of cylindrical rollers located a distance from the first pair are similarly mounted and positioned to make contact with the sheet material in like manner. A pair of cylindrical engraved rolls, each having an array of guadrangular cells formed along the surfaces thereof, are respectively positioned between each of the first and second pairs of rollers and are rotatably mounted on movable axes so that the engraved rolls urge against one or both of the roller pairs during rotation. The quadrangular cells serve to provide a multiplicity of miniature cups that remove a certain fraction of the liquid from the surfaces of the first pair of rollers thereafter transferring the fraction to the surfaces of the second roller pair which in turn deposit the fraction on the sheet material to effect improved continuous coating of the sheet material.

REFERENCES:
patent: 2393529 (1946-01-01), Harrigan
patent: 2631643 (1953-03-01), Schueler
patent: 2714365 (1955-08-01), Rowlands
patent: 2774684 (1956-12-01), Fuchinari
patent: 3303814 (1967-02-01), Nitchie
patent: 3703156 (1972-11-01), Niesen et al.

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