Adjusting device for the rolls of a calendar
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United States of America Patent
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-
Jun 15, 1999
Grant Date -
N/A
app pub date -
Jun 16, 1997
filing date -
Jun 14, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adjusting device for the rolls of a calender having a hydraulic drive for the fine setting of the rolls in their working position and a hydraulic drive for positioning the rolls in the working, maintenance and roll-change positions. The hydraulic drive for positioning the rolls includes hydraulic cylinders having double-acting pistons. An interlock device is provided, by which the piston rod can be interlocked positively in the working position of the rolls, after which the piston rod can be acted on by a prestressing force opposed to the adjusting direction in such a way that the interlock has no play.
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