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An apparatus and process prevents and removes obstructions in the discharge opening of a metering slot of a coating apparatus, or fountain applicator, applying a coating medium onto a moving material web. The process repeatedly removes obstructions from the discharge opening of the metering slot, th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KUSTERMANN,,MARTIN, ROMES,,PATRIC
Format:	Patent
Sprache:	fin ; swe
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS IMPREGNATING OR COATING OF PAPER NOZZLES PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	An apparatus and process prevents and removes obstructions in the discharge opening of a metering slot of a coating apparatus, or fountain applicator, applying a coating medium onto a moving material web. The process repeatedly removes obstructions from the discharge opening of the metering slot, thereby preventing defects in the applied coating. The apparatus includes a scraper disposed and translatory movable within the discharge opening in a direction transverse to the direction of movement of the material web.