Patent · US Expired

Method and device for eliminating rhythmic register errors in sheet-fed rotary printing machines

US6241241A · kind A · utility

5Cited by

8References

11Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Andreas Fricke · Eberbach, DE
Rudi Hofstetter · Östringen, DE
Heiner Luxem · Wilhelmsfeld, DE

Key dates

Filing date	Feb 4, 1999
Grant date	Jun 5, 2001
Priority date	—
Expiry date	Feb 4, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65H11/007
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for eliminating rhythmic register errors in sheet-fed rotary printing machines, the sheets therein being transported by an impression cylinder of double size having two gripper arrangements, includes bringing front lays, which have been provided for orienting the sheets at a feed table, out of an end position outside a conveying plane of the sheets and into a first orientation position on the feed table, then bringing the front lays back into the end position, and thereafter bringing the front lays into a second orientation position on the feed table; and a device for performing the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.