Printing – Rolling contact machines – Rotary
Patent
1998-03-30
1999-11-09
Burr, Edgar
Printing
Rolling contact machines
Rotary
101419, 101420, 271268, 271277, B41F 1324
Patent
active
059793180
ABSTRACT:
A method for smear-free guidance of a printed sheet on a given sheet-guiding cylinder of a printing press includes taking over a leading edge of the sheet by a gripper device of the given sheet-guiding cylinder from a preceding or up-line sheet-guiding cylinder and, after the take-over of the leading edge of the sheet by the gripper device, fixing a first section of the underside of the sheet to the circumferential surface of the preceding or up-line sheet-guiding cylinder in a manner that the sheet, which has been pushed onwardly by the preceding or up-line sheet-guiding cylinder, is kept spaced from the circumferential surface of the given sheet-guiding cylinder, and the circumferential surface of the given sheet-guiding cylinder is located, as viewed in radial direction, within a circular path described by the gripper device during the rotation of the given cylinder.
REFERENCES:
patent: 4395949 (1983-08-01), Jeschke
patent: 4815379 (1989-03-01), Becker et al.
patent: 5029524 (1991-07-01), Wirz et al.
patent: 5421257 (1995-06-01), Okuda et al.
patent: 5787810 (1998-08-01), Stephan
Burr Edgar
Ghatt Dave A.
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Lerner Herbert L.
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