Double Acting Patents (Class 139/81)
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Patent number: 7506668Abstract: A device for modulating a first rotational motion of an input shaft (2) to a second, different from the first, rotational motion of an output shaft (3)in textile machines has a fixed complementary cam (1) provided with at least two cam profiles (1 a, 1b). At least one cam follower (5) is linked to the input and the output shafts (2, 3) and is provided with at least two contact rollers (6a, 6b), each following a different cam profile (1a, 1b), because of which the cam followers (5)are performing a rocking motion. The cam profiles (1a, 1b)arc internal cam profiles.Type: GrantFiled: April 13, 2006Date of Patent: March 24, 2009Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Matthew Theobald, James Anthony Graham
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Patent number: 7464729Abstract: A Jacquard machine, having at least two knife grids (5, 6)moving up and down in opposition on either side of the Jacquard machine, the Jacquard machine having a single-sided drive (1) for driving at least one driving lever (2,3) which is provided for driving the motion of the knife grids (5, 6) on either side of the Jacquard machine, and one traversing rocking shaft (24) being provided to transmit the motion of the driving lever (2 and 3 respectively) to the knife grids (5,6) of one of the sides of the Jacquard machine.Type: GrantFiled: March 17, 2006Date of Patent: December 16, 2008Assignee: N.V. Michel Van de WieleInventors: Bram Vanderjeugt, Matthew Theobald, James Anthony Graham
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Patent number: 7448415Abstract: A cam motion machine that includes several cams each defining at least one running track for a follower roller. Each cam is provided with a centering bore that permits mounting of the cam on a drive shaft, while elements are provided to apply a tightening force parallel to the drive shaft with a non-circular section. At least one washer-spacer, for which an internal edge is non-circular and designed to enable an axial displacement of the washer-spacer along the shaft, is fixed to rotate with the shaft and is in contact with at least one of the cams. The washer-spacer may be fixed to the cam by adherence and to the shaft by cooperation of shapes due to complementary projections provided on one of the shaft and the washer-spacer. It would be appreciate if the Examiner would indicate the acceptance of this amendment to the Abstract in the next office communication.Type: GrantFiled: April 10, 2006Date of Patent: November 11, 2008Assignee: Staubli FavergesInventors: Jean-Pierre Pages, Bastien Tardy
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Patent number: 6135161Abstract: A method for producing a fabric, by a loom equipped with healds, a reed and a back roller, characterized by using synthetic filament yarns as the warp yarns and the weft yarns to be supplied to the loom, using a drive system having a cam for the shedding and closing motions of the healds, and keeping the dwell angle of the healds in a range from 85 to 120 degrees. The back roller is equipped with a positive easing mechanism, and the easing quantity by the easing mechanism is adjusted in a range from about 5 to about 15 mm. Where the warp yarns positioned in the selvages of the fabric among the warp yarns are called selvage yarns and the warp yarns additionally added to the selvage yarns are called insert yarns, then the number of insert yarns per 10 selvage yarns is in a range of from 1 to 10, and one selvage yarn each and one insert yarn each are guided through each dent of the reed.Type: GrantFiled: June 17, 1999Date of Patent: October 24, 2000Assignee: Toray Industries, Inc.Inventors: Junichi Nakano, Tomomichi Fujiyama, Masao Seki, Kiyokazu Minami
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Patent number: 5507321Abstract: A heald frame comprises: a heald support frame for supporting a plurality of healds in parallel, the heald support frame having a central plate portion and a pair of ring-shaped rectangular heald supporting portions extending in opposite directions from the central plate portion; and a heald support extending perpendicularly from the central plate portion, the heald support being integrally connected to the central plate portion of the heald support frame via a generally V-shape joint. The heald frame is made from a reinforced composite material composed of a synthetic resin and a reinforcing filler. Each of the heald supporting portions includes one lower supporting rod for supporting at least a heald.Type: GrantFiled: August 4, 1994Date of Patent: April 16, 1996Assignee: YKK CorporationInventors: Kenji Kutsukake, Kihei Takahashi, Hisayoshi Kato, Yoshiharu Tanaka
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Patent number: 4041986Abstract: An arrangement for forming sheds in a weaving machine having a plurality of operatively mounted heald shafts forming a heald shaft system. A drive shaft is rotatably mounted in the weaving machine and a plurality of eccentrics are non-rotatably mounted on the drive shaft one behind the other. A bearing is mounted on each eccentric; a rim member is mounted on each bearing and a sleeve is mounted on the rim member. One tie rod is pivotally connected to the rim member and another tie rod is threadably connected to the sleeve. The tie rods are connected via suitable linkages to the heald shaft. When the drive shaft rotates the heald shaft is reciprocated by the action of the eccentrics on the bearing and rim member.Type: GrantFiled: July 16, 1976Date of Patent: August 16, 1977Assignee: Elitex Koncern textilniho strojirenstviInventors: Josef Resch, Miloslav Kadlec, Stanislav Zahradnik, Josef Parizek