Lateral perforation vertical registration device for offset press
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United States of America Patent
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Jul 8, 1986
Grant Date -
N/A
app pub date -
Mar 1, 1985
filing date -
Mar 2, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A lateral perforation vertical registration device for an offset press in which the position of lateral perforations formed on printing sheets can be accurately set without the need for running a number of test sheets. A lateral perforating position reading plate is provided made of a transparent material and having both lateral and vertical scales. A printing sheet is placed on the perforating position reading plate prior to printing to determine the position of lateral perforating. A vertical scale provided on the outer peripheral surface of a numbering device mounting cylinder is then adjusted relative to a fixed pointer to correspond to the value read on the reading plate.
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