Printing – Rolling contact machines – Rotary
Patent
1995-09-01
1997-08-12
Burr, Edgar S.
Printing
Rolling contact machines
Rotary
1014241, B41F 2304
Patent
active
056554494
ABSTRACT:
A gripper device of a sheet-guiding system grips a leading edge of a sheet freshly printed on at least one side thereof. The sheet is guided along an imaginary guide path in a sheet travel direction extending perpendicularly to the leading edge of the sheet. A plurality of first air blast nozzles having respective nozzle openings emit an air flow onto a surface of the sheet. The air flow has a first main flow direction extending in parallel with and in the direction of sheet travel. A plurality of second blast nozzles emit respective air jet bundles in a respective second main flow direction perpendicular to the leading edge of the respective sheet. The first and the second main flow directions, respectively, intersect at a common starting point and define an angle therebetween having a maximum value of 90.degree. and, in a condition wherein the second main flow direction of the air jet bundles is inclined with respect to the guide path, an imaginary elongation of a central air jet of the air jet bundles, respectively, passing through the guide path and impacting with the first nozzle openings.
REFERENCES:
patent: 2138178 (1938-11-01), Lang
patent: 3231165 (1966-01-01), Wallin et al.
patent: 3622058 (1971-11-01), Vits
patent: 4429864 (1984-02-01), Scarpa et al.
patent: 4719708 (1988-01-01), Karlsson et al.
patent: 4852492 (1989-08-01), Pfizenmaier
patent: 5062217 (1991-11-01), Tolson
patent: 5174047 (1992-12-01), Gross
patent: 5471766 (1995-12-01), Heikkila et al.
patent: 5497987 (1996-03-01), Henn et al.
Henn Manfred
Wehle Josef
Burr Edgar S.
Colilla Daniel J.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
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