D - Textiles – Paper – 03 – D
Patent
D - Textiles, Paper
03
D
139/2
D03D 47/00 (2006.01) D03D 41/00 (2006.01) D03D 47/30 (2006.01)
Patent
CA 1176539
ABSTRACT OF THE DISCLOSURE Novel apparatus and method of multi-shed weaving are disclosed herein. In the improvement of the weaving apparatus, the shed retaining means includes shed-retaining members for insertion into each of the sheds to retain the sheds and to form a plurality of continuous substantially closed channels, each channel being formed in a corresponding one of the retained sheds. In addition, the inserting means includes a plurality of fluid jets arranged to insert the weft threads into the channels formed by the shed retaining means, such that each fluid jet is substantially con- strained within a corresponding one of the channels by associated shed- retaining members during the insertion of a respective weft thread, and each weft thread is substantially constrained within a corresponding one of the channels by associated shed-retaining members until its respective retained shed is released. The improved apparatus includes first impart- ing means for imparting movement to the fluid jets, such that the fluid jets move alongside the retained sheds and such that the fluid jets move in generally the same direction as the retained sheds during the insertion of the weft threads thereinto, and first synchronizing means for synchronizing the movement of the fluid jets with the retained sheds, such that each fluid jet moves conjointly with a corresponding one of the retained sheds during the insertion of a respective weft thread thereinto. In this way, a predetermined number of the weft threads can be inserted substantially simultaneously into a corresponding number of the retained sheds. The improved method includes the steps of retaining the sheds by inserting shed-retaining means into each of the sheds and using the inserted shed- retaining means to form a plurality of continuous substantially closed Abstract continued. channels, each channel being formed in a corresponding one of the retained sheds, inserting the weft threads into the channels formed by the shed- retaining means using a plurality of fluid jets, preferably air jets, each fluid jet being substantially constrained within a corresponding one of the channels by an associated shed-retaining means during the insertion of a respective weft thread, and each weft thread being substantially con- strained within a corresponding one of the channels by an associated shed- retaining means until its respective retained shed is released, moving the fluid mets alongside the retained sheds, such that the fluid jets move in generally the same direction as the retained sheds during the insertion of the weft threads, and synchronizing the movement of the fluid jets with the retained sheds, such that each fluid jet moves conjointly with a corres- ponding one of the retained sheds during the insertion of a respective weft thread. In this way, a predetermined number of the weft threads can be inserted substantially simultaneously into a corresponding number of the retained sheds.
387959
Borden Ladner Gervais Llp
Mcginley Thomas F.
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