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
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United States of America Patent
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Sep 25, 2001
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N/A
app pub date -
May 7, 1996
filing date -
May 7, 1996
priority date (Note) -
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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.
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