Patent Number: 6,293,194

Title: Method and apparatus for adjusting the circumferential register in a web-fed rotary printing press having a plate cylinder with a sleeve-shaped printing plate

Abstract: A method and an apparatus for adjusting the circumferential register in a web-fed rotary printing press having a plate cylinder with a sleeve-shaped printing plate. Exemplary embodiments include a variable speed drive box which is controlled by a central control unit in dependence on a measured difference between the speed of a plate sleeve and the press speed. The drive box produces a slight overspeed of a plate cylinder body used to support the sleeve-shaped printing plate, such that a difference between the speed of the plate sleeve and the speed of the printing press is reduced to zero.

Inventors: Vrotacoe; James Brian (Rochester, NH)

Assignee: Heidelberg Harris Inc.

International Classification: B41F 13/14 (20060101); B41F 13/00 (20060101); B41F 13/08 (20060101); B41F 013/48 (); B41F 001/34 (); B41F 021/12 (); B41F 021/14 ()

Expiration Date: 09/25/2018