Retractors Patents (Class 139/89)
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Patent number: 7624764Abstract: Heald support bar for heald shafts consists of a bent sheet metal element with unbent legs (8, 9), whereby, in the bending zones, the material thickness is reduced before or during the bending process. As a result of the compression occurring during the bending process, the material thickness in the bending region may again increase slighting during the bending process and, optionally, even return to its original value. However, in any event, an increase of the material thickness beyond the original sheet metal thickness is avoided during the bending process.Type: GrantFiled: March 26, 2008Date of Patent: December 1, 2009Assignee: Groz-Beckert KGInventors: Johannes Bruske, Robert Emele
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Patent number: 7509981Abstract: The invention concerns a frame comprising two posts (4, 4?) and two cross-members (6, 6?), a catching member (8, 8?) adapted to receive one corresponding end of at least one heald (10), and damping means (12, 12?) against which at least one end of the heald is urged to be pressed. At least when the frame is stationary, the heald being substantially rectilinear, when one first end of the or each heald (10) is pressed, either on a first catching member (8) at the traction zone (S1) thereof, or on a first damping means (12) at the compression zone (C1) thereof, the other end of the or each heald (10) is pressed, either on other damping means (12?) at the compression zone (C?1) thereof, or on another catching member (8?) at the traction zone (S?1) thereof.Type: GrantFiled: July 19, 2004Date of Patent: March 31, 2009Assignee: Staubli FavergesInventors: Jean-Paul Froment, Patrick Iltis
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Patent number: 7322383Abstract: A heald (heddle) shaft (1) comprises at least one shaft rod (2) on which a damping element (12)is supported on the shaft rod carrier body (15) to be movable in the longitudinal direction of a heald or heddle (8) mounted on a shaft stave or rail (6) carried by the body (15) so as to be moveable toward and away from an abutment surface (26) of the support body (15) and an outer end surface (22) an eyelet of a heald or heddle (8) mounted on the shaft stave (6). By virtue of movably supporting the damping element (12), an alignment of the healds or heddles (8) is improved and facilitated, and a desired damping effect is obtained during the entire motion course of the healds or heddles (8).Type: GrantFiled: June 22, 2004Date of Patent: January 29, 2008Assignee: Groz-Beckert KGInventor: Karl-Heinz Gesing
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Patent number: 5285819Abstract: In a dobby drawing device in a weaving loom, the vertical displacement of a heddle frame is obtained with the aid of a single cable which is guided over first and second actuating levers to a set of springs. Two support shafts selectively support the actuating levers so the device may have a lifting or descending action.Type: GrantFiled: July 17, 1992Date of Patent: February 15, 1994Assignee: S.A. des Etablissments Staubli (France)Inventors: Jean-Paul Froment, Andre Fumex, Jean-Pierre Pages
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Patent number: 5203381Abstract: A drawing device for actuating the heddle frames of a weaving machine of the negative type including rocking levers which guide cables extending from the heddle frame to a return spring system. The rocking levers are mounted on shafts which are shiftable within elongated slots to thereby relax tension on the cables and spring system.Type: GrantFiled: January 23, 1992Date of Patent: April 20, 1993Assignee: S.A. des Etablissements StaubliInventors: Jean-Paul Froment, Andre Fumex
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Patent number: 5010927Abstract: A hold-down device for Jacquard controlled loom machines including a resilient element which exerts a spring force on the hook which is attached to the heald of the machine. The hold-down device is arranged between the hook cord and the cord assembly. The spring force provided by the resilient element is determined by the stroke of the Jacquard machine. Where it is desired for the device to be retrofitted to a Jacquard controlled loom machine, a plurality of resilient elements may be arranged in a matrix between two perforated plates, with springs being arranged in guide tubes and a stop member being attached to the cord assembly. The unit formed by the plurality of resilient elements can be arranged at an adjustable height between the frame of the Jacquard machine and the loom.Type: GrantFiled: January 10, 1989Date of Patent: April 30, 1991Assignee: Grosse Webereimaschinen GmbHInventor: Walter Keim
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Patent number: 4905739Abstract: This invention relates to a drawing system for controlling the heddle frames of weaving mechanisms of the negative type, wherein the connection between each oscillating lever and the cable of the weaving mechanism and the return spring register which corresponds thereto is ensured by a secondary cable which winds on a part of the lever concentric to the pivot axis thereof, in order to ensure for the register a perfectly linear displacement.Type: GrantFiled: December 29, 1988Date of Patent: March 6, 1990Assignee: S.A. Des Establissments StaubliInventor: Jean-Paul Froment
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Patent number: 4687029Abstract: Means for lifting motion of a heddle frame for use in a dobby having a heddle frame and a harness cord adapted for operating the heddle frame. A device for adjusting the level of the heddle frame is located internally of the side columns of the loom frame.Type: GrantFiled: September 10, 1985Date of Patent: August 18, 1987Assignee: Murata Kikai Kabushiki KaishaInventor: Hiroshi Takada
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Patent number: 4644979Abstract: The heddle drive is coupled to the transverse beam of the heddle so that the path of movement of the heddle and the direction in which the drive force is applied run parallel to each other. As a result, the transverse beams need not be especially strong. Further, the longitudinal beams may be constructed in a light weight manner since no drive forces are transmitted to these beams. The resulting heddle has a relatively small mass and the drive is especially suitable for high speed weaving machines.Type: GrantFiled: April 26, 1985Date of Patent: February 24, 1987Assignee: Sulzer Brothers LimitedInventors: Georg Senn, Herbert Oberholzer
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Patent number: 4150698Abstract: A loom patterning mechanism including a continuously movable pattern information means and pattern sensing means associated with the information means and movable synchronously therewith over at least part of a loom cycle, the sensing means serving to initiate a loom function.Type: GrantFiled: October 17, 1977Date of Patent: April 24, 1979Assignee: Bonas Machine Company LimitedInventor: John D. Griffith