摘要:
In the method for the production of a fabric, particularly tape fabric, two weft thread loops formed from different weft threads are laid into a shed formed of warp threads and bound off without use of an auxiliary thread. This is made possible thereby, that at least one weft thread is guided into the shed through a tooth gap of the reed.
摘要:
A plurality of generally parallel, side-by-side warp tows of carbonaceous precursor material are interwoven with fill yarns forming a fabric of low density cross weave to facilitate handling of the warp tows for oxidation, carbonization and other processing thereof. A different fill yarn is interwoven with the warp tows from each of the opposite edges of the fabric so as to form a succession of generally V-shaped loops in each warp yarn with the loops of the two different warp yarns being staggered along the length of the fabric. Each loop of warp yarn is comprised of a pair of lengths of warp yarn which enter the fabric from spaced-apart locations along an edge of the fabric and undulate under and over the warp tows in a like sense which is opposite the sense of the undulations of the immediately adjacent loops prior to joining at a point across part but not all of the width of the fabric. When processing of the warp tows is completed, the fill yarns are easily removed simply by pulling on those portions of the fill yarns extending between the successive loops. Methods and apparatus for weaving the fabric employ spaced-apart members such as rotatable rollers for supporting the warp tows and reciprocating, out-of-phase heddle arrangement disposed between the rollers and engaging the warp tows to periodically momentarily lift alternate ones of the warp tows relative to the remaining warp tows and then momentarily lift the remaining ones of the warp tows relative to the alternate warp tows. Each time the warp tows are momentarily separated, a loop from each of the opposite fill yarns is placed between the separated warp tows such as by use of opposite rapier assemblies which employ hollow, elongated members for feeding in the warp yarns to form the loops.
摘要:
The invention relates to a method for weaving a webbing, comprising at least one first (right-hand) weft thread and at least one second (left-hand) weft thread, characterized in that the two weft threads are introduced into the same shed from both sides of the webbing, are wound around weft thread retainers in weft change loops, are substantially retained by the weft thread retainers until shed change and are then stripped off from the left thread retainers by the reed and after shed change and are bound against the stop.
摘要:
A method and apparatus for weaving a continuous fabric having parallel selvedges, including a doubleheaded needle being passed from one side of the shed to the other transversely, forming a weft double pick alternately from one side and the other. The apparatus includes an oscillating shaft moving a pair of arms supporting gripper means adapted to grip the needle on either side of the shed as the needle is being passed through the shed.
摘要:
In order to make it possible to weave in a conductive thread, in particular an antenna thread, in a very wide variety of ways in a ribbon needle loom for manufacturing a strip, in particular a label strip, having a shedding apparatus for forming a shed (24) from warp threads (8), a weft insertion needle (26) for inserting weft thread loops, a reed (30) and having a feed apparatus (34) for a thread which has a blade (34) which dips into the shed (24) between warp threads (8) as far as under the insertion path of the weft insertion needle (26), it is proposed that the blade is arranged on a shaft (38) which is oriented transversely with respect to the warp direction. The shaft is connected to a first drive apparatus (40a) for performing a pivoting movement of the shaft. As a result of the pivoting, the blade (34) dips into and out of the shed (24). Furthermore, the shaft is connected to a second drive apparatus (44a) for movement in the axial direction. As a result, the blade (34) can be moved over the width of the strip (2).
摘要:
The invention relates to a method for weaving a webbing, comprising at least one first (right-hand) weft thread and at least one second (left-hand) weft thread, characterized in that the two weft threads are introduced into the same shed from both sides of the webbing, are wound around weft thread retainers in weft change loops, are substantially retained by the weft thread retainers until shed change and are then stripped off from the left thread retainers by the reed and after shed change and are bound against the stop.
摘要:
A weaving loom with a magnetic shuttle comprised of an endless loop for guiding the shuttle to circulate and fly through the shed of warp and a magnetic means constructed as a structure which generates a magnetic force circulating along the endless loop for attracting and driving the shuttle.
摘要:
A method of weaving a spiral-shaped textile includes inserting in the vicinity of the fell of the textile a finger adjacent to a first intermediate warp fiber between a first edge and a second edge; forming a loop around the finger with the weft fiber; wrapping weft fiber around the first intermediate warp fiber between the first edge and the second edge of the textile to secure the weft fiber in a radial direction between the first edge and the second edge of the textile; extending the weft fiber to the first edge of the textile; securing the weft fiber using a knitting system on the first edge of the textile; and removing the finger from the textile.
摘要:
The invention relates to a method for weaving a webbing, comprising at least one first (right-hand) weft thread and at least one second (left-hand) weft thread, characterized in that the two weft threads are introduced into the same shed from both sides of the webbing, are wound around weft thread retainers in weft change loops, are substantially retained by the weft thread retainers until shed change and are then stripped off from the left thread retainers by the reed and after shed change and are bound against the stop.
摘要:
The present invention relates to a weft insert apparatus for a shuttleless loom, especially a ribbon loom, comprising two cooperating weft insert elements moved towards one another, the weft insert elements moving about pivot axes in such a manner that their free ends describe curves, and comprising at least one tying needle.