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US 6,386,241 B1Granted
Leno weaving
AssigneeGriffith Textile Machines Limited
InventorJohn Dalton Griffith
Life of this patent
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AssigneeGriffith Textile Machines Limited
InventorJohn Dalton Griffith
Estimating the term…
A reed assembly for leno weaving, the reed assembly including upper and lower reed frame members between which a plurality of dent fingers extend, each pair of neighbouring dent fingers being spaced apart to define a dent space for a crossing-over warp yarn, a yarn guide finger co-operating with each dent space for guiding a crossed-over warp yarn therethrough, each yarn guide finger extending from one of the frame members and having a terminal end spaced from the other frame member so as to divide the co-operating dent space into a pair of cross-over dent spaces extending between said terminal end and said one frame member and being defined between facing sides of the guide finger and the pair of neighbouring dent fingers and cross-over transfer region extending between said terminal end and said other frame member and being located between opposed faces of the pair of neighbouring dent fingers.
A reed assembly for leno weaving, the reed assembly including upper and lower reed frame members between which a plurality of dent fingers extend, each pair of neighbouring dent fingers being spaced apart to define a dent space for a crossing-over warp yarn, a yarn guide finger co-operating with each dent space for guiding a crossed-over warp yarn therethrough, each yarn guide finger extending from one of the frame members and having a terminal end spaced from the other frame member so as to divide the co-operating dent space into a pair of cross-over dent spaces extending between said terminal end and said one frame member and being defined between facing sides of the guide finger and the pair of neighbouring dent fingers and a cross-over transfer region extending between said terminal end and said other frame member and being located between opposed faces of the pair of neighbouring dent fingers, the dent fingers are flexible to enable said frame members to be displaced longitudinally relative to one another to control access of the crossing-over warp yarn from the cross-over transfer region and into one or other of said pair of cross-over dent spaces.
A method of leno weaving using a reed assembly having a lower frame member with a plurality of yarn guide fingers with each guide finger having a guide eye comprising threading a first set of crossed-over warp yarns through the guide eye in each of the yarn guide fingers, threading a second set of crossing-over warp yarns through each dent space, oscillating a reed assembly between weft insertion and beat-up positions, guiding the second set of yarns such that at said beat-up position of the reed assembly, the crossing-over yarns are located in a cross-over transfer region and operating the reed assembly when said second yarns are in said transfer region to relatively position said yarns for entry into alternate ones of a pair of cross-over dent spaces on successive weaving cycles.
A method of converting a heald operating loom for leno weaving, the heald operating loom including a beat-up reed, a plurality of heald frames and heald drive means for raising or lowering the heald frames, the method comprising the steps of replacing said beat-up reed with said reed assembly, removing said heald frames and connecting said heald drive means to said reed assembly for causing said frame members to be longitudinally displaced relative to one another.
Dependencies are inferred from the claim text.