Stentering machine
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United States of America Patent
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-
Mar 15, 2005
Grant Date -
Nov 25, 2004
app pub date -
Feb 13, 2004
filing date -
Jun 15, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stentering machine having a drying zone and a pretreatment zone for coating a web of material on both sides and drying it is described. One aim consists of deflecting a web of material coated in the vertical position and stretched out in width, in order to introduce it into a conventional flat tenter frame, without damaging the coating. According to the invention, the web of material is needled into a pair of stentering chains having a predetermined chain pitch, and deflected from the vertical into the horizontal position on such a large arc that the difference between the sum of the chain pitches that form the arc chords and the arc length itself becomes small enough to be ignored.
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