Process and device for guiding and keeping a material web spread
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United States of America Patent
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Nov 19, 1996
Grant Date -
N/A
app pub date -
Jan 3, 1995
filing date -
Jan 8, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process and apparatus for guiding and keeping a material web spread out uses a spreading roll and with contact pressure elements and a control member controlled by a control system monitors the control path in a way such that the spacing of the contact pressure elements from the spreading roll is varied. Because of the advantages that the control path has in the present case, a rapid and stable control of the position of the material web is assured. This is advantageous especially in connection with highly sensitive material webs such as, for example, wide-meshed textile webs.
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