Fabric with a variable width
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United States of America Patent
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Jun 10, 2003
Grant Date -
Mar 27, 2003
app pub date -
Nov 10, 1999
filing date -
May 11, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A weaving method and apparatus for producing a length of fabric which has a variable width, wherein the sheet of warp threads is guided in the area of the shed with a space between the warp ends which is enlarged or reduced according to the desired width of the fabric. The fabric is guided by a spreader device (19) at least on both of its longitudinal edges and preferably directly after the stroke of the weft yarn. The effect of the spreader devices on the width of the fabric is controlled synchronously with and substantially proportional to the enlargement (spread) and reduction (contraction) of the space between the warp ends. Seamless and seamed tubes with variable diameters can be produced using the inventive method.
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