By Tucking Patents (Class 139/434)
  • Patent number: 4848415
    Abstract: A machine is disclosed which forms a tucked selvedge in fabrics produced on shuttle-less looms, of the type in which at least two weft threads are tucked simultaneously in the same warp shed, and in which the principal shaft rotates at a number of revolutions equal to that of the shaft of the loom on which the machine for forming tucked selvedge is mounted divided by thenumber of weft threads tucked simultaneously in the same warp shed. The movement of the hook-needle, the thread-seizing device or pincer and the weft-thread cutting unit, or scissors, is at each instant positively controlled by a set of cams mounted on the shaft of the tucked selvedge forming machine and connected with the said hook-needle through respective linkage systems, the said cams being operative for an angle equal to 360.degree. divided by the number of weft threads that are simultaneously tucked in the same warp shed.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: July 18, 1989
    Assignee: 501 Construzioni Meccaniche Manea S.r.l.
    Inventor: Giovanni Manea
  • Patent number: 4715410
    Abstract: Apparatus for turning the end of a weft yarn into a warp shed for creation of a selvedge, the apparatus including a movable guide which in a first position is located outside the warp sheet to receive the end of a weft yarn after weft insertion, and which is movable to a second position located within the warp shed whereby the guide serves to separate the end of the weft yarn from the warp threads. A fluid jet nozzle is associated with the guide and is positioned to direct a flow of fluid along the guide, after the guide is moved inwardly to the second position, for carrying the end of the weft yarn into the warp shed.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: December 29, 1987
    Assignee: Sulzer Brothers Limited
    Inventor: John D. Griffith
  • Patent number: 4600045
    Abstract: A pneumatic vehicle tire having a carcass and belt made of shot-in cord fabric. In order to achieve a uniform thread density of the warp threads over the width of the layers required for forming the cord fabric, the present invention provides woof threads of finite length. The ends of these threads are guided back into the fabric by an extent which is sufficient to hold them in the fabric structure.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: July 15, 1986
    Assignee: Continental Gummi-Werke Aktiengesellschaft
    Inventor: Karl-Heinz Dudziak
  • Patent number: 4600039
    Abstract: Process for the formation of a tucked selvedge in a terry cloth piece, as obtained with the procedure using an articulated reed having two beating-up positions, using a selvedge-forming device which comprises a movable grasping and severing member as well as a second movable member in the form of a takeup hook or the like, characterized by the additional step of keeping said movable members through the entire time during which the weft threads inserted in the shed and beaten up by the reed up to the blind beat position are, in their turn, beaten by the comb against the fell of the fabric being woven.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: July 15, 1986
    Assignee: Nuovo Pignone S.p.A.
    Inventor: Luciano Corain
  • Patent number: 4565225
    Abstract: A blower nozzle is provided on the shot or weft insertion side of the weaving machine for blowing the severed end of the weft thread into an eyelet of a selvedge-tucking needle. By transferring the weft thread end by means of the blower nozzle, a particularly short time within the operating cycle of the weaving machine is required for the procedure of transferring the weft thread end to the selvedge-tucking needle. This permits higher operating speeds of the weaving machine.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: January 21, 1986
    Assignee: Maschinenfabrik Sulzer-Ruti AG
    Inventor: Gotthilf Bertsch
  • Patent number: 4554950
    Abstract: In a terry cloth weaving machine in which a horizontal translation of both warp thread systems of the upper shed and of the lower shed, together with the already woven fabric, takes place for the formation of loops and in which an apparatus for tucking or laying-in tucked or laid-in selvedges is arranged at each side of the machine for the fabrication of tucked or laid-in selvedges in the woven fabric, the tucking or laying-in needles of which tuck or lay the free ends or pick ends of the inserted weft threads back into the weaving shed, an apparatus for fixing the position of the apex of the weaving shed at least over the width of the associated tucked or laid-in selvedge is arranged at each of the sides of the machine. Each apparatus for fixing the position of the weaving shed apex comprises two bars or straight-edges parallel to the edge or fell of the fabric and to the apex line of the weaving shed, one of which engages the corresponding tucked or laid-in selvedge from above and the other from below.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: November 26, 1985
    Assignee: Aktiengesellschaft Adolph Saurer
    Inventors: Aldo Sancini, Miguel A. Stacher
  • Patent number: 4552187
    Abstract: A retention nozzle is provided at the catch side of the weaving machine for clamping or retaining the weft thread end during severance of the weft thread by means of a shear. A transfer nozzle is also provided at the catch side. When the weft thread lies over the transfer nozzle after being severed, the transfer nozzle is supplied with blower air and subsequently the supply of blower air to the retention nozzle is interrupted. In this manner the weft thread end is withdrawn from a catch channel of the retention nozzle and blown into a catch channel of the transfer nozzle. During this operation, the weft thread end is conducted through an eyelet of a selvedge-laying needle and thereby transferred to the latter. The retention nozzle permits severance of the weft thread by means of the shear even before the weft thread is in alignment with the eyelet of the selvedge-laying needle and the transfer nozzle.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: November 12, 1985
    Assignee: Maschinenfabrik Sulzer-Ruti AG
    Inventors: Gotthilf Bertsch, Josef Braun
  • Patent number: 4485848
    Abstract: The terry weaving machine is provided with a deflecting mechanism for guiding the edge warp yarns therethrough to retain the tucked-in end of a weft yarn in tong-like fashion. The deflecting mechanism may be in the form of a plate with a single slot or may be defined by a pair of adjustable jaws so that the slot can be sized depending upon the size and type of yarns being woven.
    Type: Grant
    Filed: December 16, 1982
    Date of Patent: December 4, 1984
    Assignee: Sulzer Brothers, Ltd.
    Inventor: Franz Eisenlohr
  • Patent number: 4142558
    Abstract: A device for cutting, retaining and tucking a weft end to form a selvedge comprises two concurrently operated cutting blades, a shoe associated with the blades and releasably retaining the cut yarn, a pick up hook adapted to tuck the yarn into the weft shed and cam actuators and linkages to sequentially control the yarn cutting and reinsertion operations.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: March 6, 1979
    Inventor: Silvio Sbabo
  • Patent number: 4142559
    Abstract: A device for providing single and double selvedges comprises a cutting unit, a retaining shoe for each selvedge, a pick up hook for each shoe adapted to bring the cut yarn back through the weft shed and cam actuators and linkages controlling the yarn cutting and picking up operations.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: March 6, 1979
    Inventor: Silvio Sbabo
  • Patent number: 4090535
    Abstract: Formation of tucked-in type selvages on a shuttleless weaving loom is carried out in the area in front of the reed by cooperation of a pair of coacting grippers and a cutter, movements of these elements being in the form of a combination of swinging about a fixed point and sliding in the warp direction, the course of movement of the grippers before cutting of the weft end being different from that after cutting of same.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: May 23, 1978
    Inventor: Toyo Nakanishi
  • Patent number: 4078586
    Abstract: A method and apparatus for producing a selvage on a fabric woven on a loom in which filling threads are drawn from a stationary supply outside the shed formed by the warp yarns. The method and apparatus includes inserting a first filling through the shed. The ends of the first filling are clamped by a first pair of clamps positioned on opposite sides of the shed which hold the filling in an extended position. The filling thread is beat-up into the fell of the fabric and simultaneously the ends thereof are displaced behind the fell of the fabric for engagement by a second pair of clamps. The filling is then severed outside of the second pair of clamps so that the second pair of clamps continues to hold the ends of the filling in an extended position behind the fell of the fabric. The shed is then changed and the above steps are repeated until a predetermined number of fillings are held by the second pair of clamps.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: March 14, 1978
    Assignee: Adolph Saurer Limited
    Inventors: Allan William Henry Porter, Rudolph Zviener, Josef Krause
  • Patent number: 4076049
    Abstract: A machine for forming the so-called tucked selvedge is disclosed, which comprises two thread-grasping units, a thread cutting unit and a movable hook-needle. The second thread-grasping unit is laterally shifted relative to the first like mechanism. The hook-needle serves to grasp the weft thread and to insert it in the warp shed as this becomes available. The working sequence of all of these mechanical units is warranted by appropriate, specially provided cam and linkage mechanisms. The advantage is that thread waste for the formation of a dummy selvedge is prevented.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: February 28, 1978
    Assignee: F.11i Manea S.n.c. Costruzioni Meccaniche Accessori Tessili
    Inventor: Antonio Manea
  • Patent number: 4040452
    Abstract: The invention relates to a device for holding weft yarns in a shuttleless loom with continuous weft feed and more particularly for holding the cut change thread to be folded up into the shed to form a selvedge in a fabric manufactured on said loom.The device comprises a plate, adjustably mounted to the lower cutter of the cutting device of the loom, and a leaf spring pressing against said plate, whereby the weft yarn to be cut is gripped therebetween and kept into a taut state, while the weft yarn is being cut and then gripped by the gripping hook for the folding up into the shed. The device further comprises holding means in the form of a bar cooperating with said gripping elements, by which the weft yarns are held and arranged so that all of them are starting from the same position in the hooking zone, and are prevented from becoming entangled with the other weft yarns still attached to the edge of the fabric.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: August 9, 1977
    Assignee: Nuovo Pignone S.p.A.
    Inventor: Nicola Santucci