Folding device
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United States of America Patent
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-
Oct 12, 1999
Grant Date -
N/A
app pub date -
May 6, 1998
filing date -
Nov 8, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for accurately setting a roller gap of a folding device of a rotary web-fed press uses a rotatable threaded spindle with contrarotating threads at both of its ends. A drivable differential screw gear mechanism is associated with each threaded spindle end and operates to pivot two-armed levers that support the folding rollers to thus vary the roller gap.
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