Harnessing Patents (Class 139/82)
  • Patent number: 8973620
    Abstract: The connecting rod (6) for two articulations with parallel axes and for transmitting the rocking movements of an output lever of a shedding device to a heald frame belonging to a weaving loom, having a first connecting tip connecting to a first articulation and secured to a longitudinal bar, a second connecting tip (62) connecting to a second articulation and including members for clamping the bar that are accessible from one side of the connecting rod, and members (64) for separating the tips along a longitudinal axis (X6) of the connecting rod. The separating member having a bearing member (640) on an inclined surface (612; 630) whereof the normal is comprised in a plane (P6) perpendicular to the axes of the articulations and is inclined relative to the longitudinal axis (X6) of the connecting rod, while the bearing member (640) can be moved in a direction perpendicular to a plane (P34) containing the axes (X3, X4) of the articulations.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: March 10, 2015
    Assignee: Staubli Faverges
    Inventors: Bastien Tardy, Julien Murat
  • Publication number: 20150007905
    Abstract: A method for producing a one-piece preform for a composite structure includes the following steps: positioning a plurality of bundles of warp threads over two pairs of harnesses; making movements of low amplitude of each of the pairs of harnesses so as to make at least two adjacent and separate layers; and making movements of higher amplitude of the pairs of harnesses so as to at least partially link the at least two adjacent layers to an least one portion of the preform.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventor: Loïc LE BOULICAUT
  • Patent number: 8794271
    Abstract: The present invention discloses an electronic-dobby-and-jacquard-loom weaving machine and a weaving method. The machine comprises a weaving body, a first warp beam, a second warp beam, a jacquard loom, a dobby loom, a harness frame, a plurality of first harness wires, a plurality of second harness wires, a plurality of harness cords, a plurality of return springs and at least one weft accumulator, wherein the weaving body and the jacquard loom are connected with a synchronous transmission mechanism between them; the synchronous transmission mechanism comprises a weaving spindle, a main motor encoder, a jacquard loom transmission shaft, a jacquard loom encoder, a gear box and a servo control system. The present invention improves the clarity of the fell (shed), widens the fell, keeps the fell clear stably, and realizes high-density jacquard weaving.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: August 5, 2014
    Assignees: Zhejiang Sanzhi Textiles Co., Ltd., Changshu Textile Machinery Works Co., Ltd., Suzhou Huayi Machine Co., Ltd.
    Inventors: Shengcheng Zhang, Chenhui Qian, Xiaodong Li, Dexun Ye, Yunfei Yao, Jun Zhang, Yaojun Han, Xiaofang Chen, Shuifa Ding, Xiaohong Peng, Jianhua Chen
  • Patent number: 8251102
    Abstract: A heddle frame (1) is driven via drive rods (15), which pass through its lateral sampsons (13). To that end, the lateral sampsons (13) each have a corresponding channel (19). The play between the circumferential face (22) of the drive rods (15) and the channel wall face (21) of the respective channel (19) has an intermediate layer (24), which extends over the full length, or portions, of the drive rod (15). The intermediate layer (24) preferably comprises an impact-proof, permanent-elastic, damping material. A slight residual play allows the introduction of the drive rods (15) and the intermediate layer (24) into the channel (19) without force.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: August 28, 2012
    Assignee: Groz-Beckert KG
    Inventor: Franz Mettler
  • Patent number: 7806149
    Abstract: In order to make a small space requirement, a low energy requirement and therefore an increased weaving frequency possible in a shedding apparatus, a spring drive is proposed which is connected to magnetically acting holding means. The holding means are capable of holding the heddle frame in an upper shed position and in a lower shed position counter to the spring force. Furthermore, the heddle frame is connected to a linear motor. A heddle movement can be initiated by said linear motor. According to the invention, the spring drive is configured as a tension/compression spring which is designed in such a way that, during operation of the heddle frame at the resonant frequency of the spring drive the greater part of the kinetic energy can be obtained from the spring drive.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: October 5, 2010
    Assignee: Textilma AG
    Inventor: Silvan Borer
  • Patent number: 7726347
    Abstract: The heald shaft (1) for weaving machines is divided into a machine-resident frame part (14) and a removable frame part (15). While the removable frame part (15) supports a heald mounting rail (30) that must be released from said frame part for a heald change, said removable frame part is associated with an additional heald mounting rail (33) that is releasably held on the lower shaft rod (16). The upper shaft rod (25), together with the two heald mounting rails (30, 33), forms a removable frame part (15). The lower shaft rod (16), together with the lateral supports (19, 20), forms a machine-resident frame part. Preferably, the lateral supports (19, 20) and the lower shaft rod (16) are rigidly connected to each other.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: June 1, 2010
    Assignee: Groz-Beckert KG
    Inventor: Franz Mettler
  • Patent number: 7624764
    Abstract: 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: Grant
    Filed: March 26, 2008
    Date of Patent: December 1, 2009
    Assignee: Groz-Beckert KG
    Inventors: Johannes Bruske, Robert Emele
  • Patent number: 7617845
    Abstract: A heald shaft (1) for coupling the shaft rods (2) with the end binders (5), having connecting joints or hinges (10) whose pivot axes (14) lie externally of the shaft rods (2) and preferably inside the end binders (5). Due to the connecting joints (10), a moment-free coupling between the shaft rods (2) and the end binders (5) is ensured. The relative pivotal motions between the shaft rods (2) and the end binders (5) appearing during operation do not generate any moment transmissions between the shaft rods (2) and the end binders (5). Preferably, the driving couplers (7) are arranged above the end binders (5) in a direct extension thereof.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: November 17, 2009
    Assignee: Groz-Beckert KG
    Inventors: Stefan Drope, Johannes Bruske, Karl-Heinz Gesing
  • Patent number: 7500495
    Abstract: An end binder (5) for a heald shaft (1) is formed by a bent sheet metal member (9) which preferably has a U-shaped cross section and which, according to the preferred embodiment, is of high-grade steel. The open side of the U-section faces the shaft rods (2,3). In the hollow space enclosed by the bent sheet metal member (9) shaft rod couplers (28) are secured which are preferably pivotally held. The upper or lower end of the bent sheet metal member forms part of a driving coupler (25) which is situated preferably in a linear continuation of the bent sheet metal member (9) and is a one-piece component with the end binder (5). Such a structure may be manufactured in a simple manner with very small tolerances, and it has a low weight, a substantial stiffness and highly satisfactory bearing properties for being supported in plastic guides.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: March 10, 2009
    Assignee: Groz-Backert KG
    Inventors: Johannes Bruske, Stefan Drope, Karl-Heinz Gesing, Stefan Danner
  • Patent number: 7377293
    Abstract: A heddle frame having two uprights and two cross-rails interconnected by at least one brace extending in a direction generally parallel to the uprights. The brace includes a rod provided with a screw fastener at opposite ends thereof, two threaded members for being screwed onto one of the opposite ends of the rod, and first and second clamping members mounted to the opposite ends of the rod and the threaded members, respectively, for exerting a clamping locking force on a portion of each cross-rail wherein the locking force results from screwing the threaded members onto the opposite ends of the rod.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: May 27, 2008
    Assignee: Staubli Faverges
    Inventor: Andre Fumex
  • Patent number: 7318457
    Abstract: A heald frame including two posts, two cross members and connectors which are used for securing at least one post to at least one corresponding cross member. Each connector includes an intermediate tubular fixing element which is disposed in a housing provided in the cross member and indented with respect to a front face of the cross member and which element defines an internal volume in which a protrusion extending from the at least one post is seated.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: January 15, 2008
    Assignee: Staubli Faverges
    Inventors: Jean-Pierre Pages, Bertrand Cazin
  • Patent number: 7168454
    Abstract: A harness device for a weaving machine is made with partial apertured boards of synthetic material that can be manufactured by injection moulding. Each small partial apertured board has threading openings for pulling through harness cords, provisions to carry connecting elements and positioning means to position the connecting elements. Connecting elements connect one or several harness cords to one or several tackle cords or hooks. The threading openings or the connecting elements are provided with a spring-mounted retaining element and the connecting elements are provided with an opening through which one or several spindles may be passed.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: January 30, 2007
    Assignee: N.V. Michel Van de Wiele
    Inventor: Bram Vanderjeugt
  • Patent number: 7137415
    Abstract: A heddle shaft (1) has shaft rods (2, 3), which are embodied as profile bodies (12) having at least one hollow chamber (14). The shaft rods (2, 3) are joined together by lateral bracing posts (4, 5) and at least one center connector (11). For securing the latter, retaining pieces (23) are disposed in the hollow chambers and are accessible through windows (22). The retaining pieces (23) are preferably glued into the hollow chamber (14) and have one or more threaded bores for securing the center connector (11) by means of screws (37).
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: November 21, 2006
    Assignee: Groz-Beckert KG
    Inventors: Andre Olbing, Karl-Heinz Gesing
  • Patent number: 7059356
    Abstract: A shed forming device (1) for a power loom has a plurality of heddle shafts, to which a drive mechanism with a plurality of servo motor groups (13, 14) is assigned. The servo motor groups are located below each of the heddle shafts (3 through 8), in each case as a cluster, and they are located with their pivot axes (27 through 32) on a circle, an ellipse, or a similar figure. They are also axially offset from one another. Each servo motor (15 through 20) is provided with a driven lever (21 through 26). The free ends of all the levers are located approximately at the center of the circle or ellipse or other figure of revolution. They are connected to the heddle shafts (3 through 8) via connecting rods (34 through 39) and form various angles with the connecting rods (34 through 39). The result is a drive mechanism with little inertia, low resilience, and little play. Very fast shaft motions can be attained in a controlled way.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: June 13, 2006
    Assignee: Groz-Beckert KG
    Inventor: Franz Mettler
  • Publication number: 20030062093
    Abstract: In a connection of a shaft rod to a side strut of a heddle shaft there is at least one guide surface provided in or on the shaft rod. The guide surface extends substantially parallel to the longitudinal axis of the shaft rod. The guide surface engages with a positive fit to a second guide surface extending along a projection of the side strut substantially parallel to the shaft rod or perpendicular to the side strut.
    Type: Application
    Filed: April 3, 2002
    Publication date: April 3, 2003
    Inventor: Hans Baumann
  • Patent number: 6378564
    Abstract: A connecting device for connecting a motion transmission element to a heddle frame in a weaving loom wherein the connection device includes a tenon member and mortise member which are cooperatively engaged with respect to one another. The tenon member includes a nut mounted to the transmission element, an anchoring block through which the transmission element extends and which cooperates with surfaces of the mortise member, a bush through which the transition element passes and which bush cooperates in rotation with the nut and which also includes a counter-nut for securing the bush against the anchoring block.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: April 30, 2002
    Assignee: Staubli Faverges
    Inventor: André Fumex
  • Publication number: 20020040736
    Abstract: This device comprises a male member forming tenon screwed on the transmission element and a female member forming mortise fixed on an upright of the frame.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 11, 2002
    Inventor: Andre Fumex
  • Patent number: 6367512
    Abstract: A shedding device for a weaving machine whose heddles are connected to respective return springs and wherein the springs have casings surrounding them. A lip seal on an end of each casing surrounding a rod portion of the heddle forms a hermetic seal against the rod portion to prevent dust and fluff from collecting on the respective spring.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 9, 2002
    Assignee: AGM Jactex AG
    Inventor: Mark Feer
  • Publication number: 20010004905
    Abstract: A shed-forming device, in particular an electronically controlled jacquard machine, with a number of combinations of at least two selection systems (3, 6, 7), (5, 8, 9) respectively with selection elements provided one above the other whereby each selection system comprises two hooks (6), (7), (8), (9) working together and that can be moved up and down by lifting means (13), (14) which can be selected by a selection element (3), (5) whereby hooks of different selection systems of a combination can be moved up and down separately from each other. Because of this simple selection elements can be used.
    Type: Application
    Filed: December 26, 2000
    Publication date: June 28, 2001
    Inventors: Lode Puype, Bram Vanderjeugt
  • Patent number: 6145548
    Abstract: A connector for a drawing mechanism including at least one tubular connecting rod of flattened cross section for connecting the connecting rod to a rocking lever of a heddle mechanism wherein the connector includes two cheeks adapted to be disposed on opposite sides of the lever and where at least two generally parallel pins include first ends which are welded to inner faces of the cheeks. The pins include second ends adapted to be connected within the connecting rod and which second ends are spaced from the first ends by a deformable portion of each pin.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: November 14, 2000
    Assignee: Staubli Faverges
    Inventor: Andre Fumex
  • Patent number: 5964253
    Abstract: The ends of two cables associated with a suspension lever in a negative dobby for controlling a common held frame are fixed in a ferrule of an eyelet which is shaped to engage a fastening section provided on a terminal edge of the lever.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: October 12, 1999
    Assignee: Staubli Faverges
    Inventor: Andre Fumex
  • Patent number: 5433254
    Abstract: A shoe for protecting pulleys in a drawing system associated with a heddle frame of a weaving machine. The shoe has an inner portion of concave profile from which a projection extends so as to be receivable within a groove of the pulley. The shoe also includes two outer segments in one of which a groove is provided having a bottom which is oriented tangentially to the groove of the pulley so that the cable guided therein will be directed generally tangentially with respect to the groove of the pulley.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: July 18, 1995
    Assignee: S.A. Des Establissments Staubli
    Inventor: Jean-Pierre Pages
  • Patent number: 5370157
    Abstract: An arrangement for releasably fastening an elongate first member (1), such as a heald rod in a loom, within a second member (2), such as a coupling element between the heald rod and a shaft drive. The second member includes a first recess (4a) forming a cavity (4) and a second recess (4b) for receiving the first member. A fastener (3) is threadably coupled to the second member within a third recess (4c). The fastener engages the first member at a bearing point (5) within the cavity to fix the first and second members together. This engagement bends the first member within the cavity so that relative movement between the two members is reduced or eliminated.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: December 6, 1994
    Assignee: Sulzer Ruti AG
    Inventor: Gustav Oertli
  • Patent number: 5365983
    Abstract: A device comprises a member having a number of recesses open on one side, into which the shaft rods of a loom can be inserted and movably retained. The device also includes a mechanism which prevents an unintentional removal of the shaft rods. The positional relationship of the device with respect to the shaft drive in a loom ensures that the shaft rods not required perform a lifting movement during the operation of the loom.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: November 22, 1994
    Assignee: Sulzer Rueti AG
    Inventor: Gustav Oertli
  • Patent number: 5335699
    Abstract: A device for forming a shed in weaving machines includes a harness and coupling elements for coupling the harness to a drive mechanism. The height of the harnesses is made adjustable by mounting respective coupling elements on setting screws integrated into the side beams of the harness elements and movable relative to the side beams for enabling individual height adjustment of each harness element relative to its coupling element. Because the height adjustment is done on the harness itself, the height adjustment can be done when the harness is inside as well as outside the weaving machine. The setting screws extend through the side beams to the coupling elements, which are situated below the harness, adjustment being effected by turning the screws from the top of the side beams to move of the harness up and down relative to the ends of the setting screws and coupling elements coupled thereto at the bottom of the side beams.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: August 9, 1994
    Assignee: Picanol N.V., naamloze vennootschap
    Inventors: Daniel Beyaert, Ignace Meyns, Dirk Sampers, Michel Vandeweghe
  • Patent number: 5322088
    Abstract: A split loom includes securing elements which can be affixed to a removable loom part to receive the harnesses before separating the removable loom part from a stationary loom part, thereby retaining the harnesses in predetermined positions until re-assembly of the removable loom part to the stationary loom part.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: June 21, 1994
    Assignee: Picanol N.V.
    Inventors: Dirk Sampers, Daniel Beyaert, Marc Gruwez
  • Patent number: 5305801
    Abstract: A prepositioning and delivering mechanism for heald shafts is either permanently or temporarily attached to a loom for guiding the heald shafts when a shaft change is to be made. The mechanism has a carrier carrying prepositioning mechanisms each including a rocking lever and a guide roller. These mechanisms are arranged along a longitudinal axis of a journal axle (18) with a spacing that corresponds to a spacing pitch between heald shaft guide frames. Each roller of the prepositioning mechanism is engageable with a respective heald shaft. At least one of the heald shaft guides is engaged with a drive for delivering or advancing of the shaft guides toward the prepositioned heald shafts.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: April 26, 1994
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Fritz Rupflin, Armin Hiemer
  • Patent number: 5255719
    Abstract: Connectors which are removably mounted within connecting rods which are used to assemble the rods to levers for controlling the movement of heddle frames in a weaving loom and which include expandable jaws for securing the connectors within the rods.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: October 26, 1993
    Assignee: S.A. des Etablissements Staubli (France)
    Inventor: Jean-Paul Froment
  • Patent number: 5255718
    Abstract: A crank lever for loom linkages, comprising a body of high-strength aluminum plate with a central hole and grooves on the inner and outer body faces adjacent the hole. A central annular rotation and thrust-bearing hub of steel surface-hardened by heat treatment is inserted into said hole and locked therein by simple compressive plastic deformation of its outer annular edge facilitated by the grooves.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: October 26, 1993
    Assignee: Nuovopignone-Industrie Meccaniche e Fonderia S.p.A.
    Inventor: Costantino Vinciguerra
  • Patent number: 5251672
    Abstract: A drawing mechanism incorporating rocking levers interposed between a weaving mechanism and the heddle frames of a weaving loom wherein each of the rocking levers for coupling the connecting rods includes a lateral element which defines a lubrication conduit joining the interspace of the ball bearings to an opening made in the levers for mounting to a coupling pivot.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: October 12, 1993
    Assignee: S.A. des Etablissements Staubli (France)
    Inventors: Jean P. Froment, Andre Fumex
  • Patent number: 5201199
    Abstract: Warp knitting machine comprising at least one guide bar axially displaceable by a pattern drive and a return spring acting thereon. At least two separate springs acting in combination upon the guide bar, have different resonant frequencies. Furthermore, they have independently adjustable, effective spring forces. By this means, it is possible to obtain a higher rate of revolution for the warp knitting machine then was heretofore possible.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: April 13, 1993
    Assignee: Karl Mayer Textilmaschinenfabrik GmbH
    Inventor: Rainer Kemper
  • Patent number: 5193590
    Abstract: In a spring system for dobbies and other weaving mechanisms of the negative type which includes hooking elements, each of the hooking elements includes, parallel to its edges which face the springs, a row of omega-sectioned openings which receive, by a lateral displacement along the axis of the opening, an endpiece of a shape to be seated within the openings.
    Type: Grant
    Filed: January 8, 1992
    Date of Patent: March 16, 1993
    Assignee: S.A. des Etablissements Staubli
    Inventors: Jean-Paul Froment, Andre Fumex
  • Patent number: 5176182
    Abstract: In a spring system for a dobby in a weaving loom, the mobile hooking element which is fixed to a cable for moving a heddle frame includes laterally spaced plates which are slidably engageable with plates of adjacent spring systems to thereby prevent contact of the springs of the adjacent spring systems.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: January 5, 1993
    Assignee: S.A. Des Etavkussenebts Satubli (France)
    Inventors: Jean-Paul Froment, Andre Fumex
  • Patent number: 5152324
    Abstract: In a mechanism for forming the shed in a weaving loom a combination including a heddle frame, a transmission element, and a coupling device, wherein the transmission element includes a threaded portion which is threadingly receiving in a bush provided with tenon-like shoulders which are engageable within mortise-like notches formed in a pair of spaced plates fixed to the heddle frame.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: October 6, 1992
    Inventor: Jean-Paul Froment
  • Patent number: 5143124
    Abstract: A system for fastening the drawing cables on the suspension levers of textile dobbies of the negative type, wherein the levers include flanges to which mounting eyes connected to the cables are secured. The cables are guided in grooves formed in a bearing pad which is cooperatively seated against the outer edge of the levers.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: September 1, 1992
    Assignee: S. A. Des Etablissements Staubli (France)
    Inventor: Jean-Paul Froment
  • Patent number: 5139053
    Abstract: A sensor type position detecting mechanism is provided for a harness frame of a weaving machine to detect when the harness frame reaches extreme end positions of its stroke. The detecting mechanism includes at least sensor system provided with a bedplate which is vertically movable along a frame of the weaving machine, a slider device vertically adjustably mounted on the bedplate, and a sensor or sensors attached to the slider device. Because the detecting mechanism can detect when the upper or lower extreme end position of the harness frame stroke has changed, an indication can be provided that there is a need to adjust or take up the slack present in wires connecting the harness frame to a shedding motion mechanism.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: August 18, 1992
    Inventor: Junichi Yokoi
  • Patent number: 5094274
    Abstract: The heddle frame carrier has a horizontal beam interconnecting two vertical arms each of which has a reduced zone operative as a pivot joint. For heddle frame changing, the arms can be hinged apart from one another with the locking members at the upper ends pulled away outwardly from the top beam of the heddle frame. Shaft retaining elements are therefore provided which provide secure and reliable retention of the heddle frame without clamping forces being exerted thereon and which enable heddle frame changing to be carried out very rapidly without the use of any tool.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: March 10, 1992
    Assignee: Sulzer Brothers Limited
    Inventors: Robert Bucher, Helmut Macho
  • Patent number: 5002097
    Abstract: A connector for joining a wire or a second machine element (associated with a harness frame, for example) to a first machine element (a Dobby machine, for example) has a bracket including spaced-apart opposed side plates, a bearing and a wire connecting mechanism. The bearing is unmovably engaged with a mating holding portion connected to the first machine element and includes a body member made from synthetic resin, and which body member defines a shaft hole having a supporting shaft rotatably inserted therethrough, and a lubricant storing recess in the upper portion thereof. A lubricant retaining member is inserted in the recess to keep a lubricant infiltrated in the lubricant retaining member. A bottom surface of the recess is open to a lubricant feeding slot of a small diameter which extends to the inner circumferential surface of the shaft hole of the bearing.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: March 26, 1991
    Inventor: Junichi Yokoi
  • Patent number: 5002096
    Abstract: A heddle frame actuator device is provided for a negative or positive heddle frame drive. The actuator device employs at least one flexure spring for imposing a spring force vertically on and in the plane of the heddle frame. In some embodiments, a pair of flexure springs, for example of U-shape, Y-shape and endless loop shape may be used. The ends of the springs connected to the loom frame may also be adjusted so that the prestressing of the springs can be varied.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: March 26, 1991
    Assignee: Sulzer Brothers Limited
    Inventors: Robert Bucher, Helmut Macho, Horst Schultz, Georg Schuon
  • Patent number: 4877060
    Abstract: A device for coupling heddle frames to rod or cable transmission elements of a mechanism for forming the shed in a weaving loom wherein a female mortise member includes a slot having a pair of opposing arms on either side thereof which shot is traversed by the transmission elements which transmission elements pass through a male tenon member which is adjustably fixed thereto with the aid of a locking mechanism and which male tenon member interengages the female mortise member.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: October 31, 1989
    Assignee: S.A. Des Establissements Staubli (France)
    Inventors: Jean-Paul Froment, Joseph Palau
  • Patent number: 4817676
    Abstract: In a loom shedding motion device, the pivoting motion of cam follower levers driven by cams is transmitted by way of thrust rods, bent levers to the leaves of the loom. Extending from a central bearing of each lever are arms on the motion input side of the lever and the motion output side of the lever. The arms are cranked or offset relatively to a bearing lug of the bent lever so that pivot points or arrangements at the ends of the arms and a center bearing are disposed substantially on a straight line, so that, because of the transmission forces in the shedding motion, the pivot experience torques which are operative around the bearing center and whose resultant is disposed vectorially on the bearing axis. The bent levers are therefore supported on the spindle or bearing shaft without tilting, so that the operation is free from wear and little lubricant is needed.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: April 4, 1989
    Assignee: Sulzer Brothers Limited
    Inventor: Peter Hans
  • Patent number: 4771812
    Abstract: A connector for joining a wire type body to a machine element which includes a bracket, an insertion member and a connecting bolt. The insertion member is connected to the bracket and couples the bracket to the machine element. The connecting bolt includes a male threaded portion screwed into a female threaded part, one of which is mounted on the bracket and the other of which is connected to the wire type body. The connector is useful in a weaving machine for connecting a setting lever of an actuating device to a wire type body attached to a harness frame. The connector offers the advantages of reduced wear while providing easy replacement of various parts of the connector.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: September 20, 1988
    Inventor: Junichi Yokoi
  • Patent number: 4644979
    Abstract: 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: Grant
    Filed: April 26, 1985
    Date of Patent: February 24, 1987
    Assignee: Sulzer Brothers Limited
    Inventors: Georg Senn, Herbert Oberholzer
  • Patent number: 4603713
    Abstract: Disclosed is a lifting device for a heddle frame comprising a first motion transmission member for increasing an amount of displacement of an operating member put out from a shedding motion and a second motion transmission member for further increasing the amount of displacement of the first motion transmission member, which members are provided in a motion transmission route between the shedding motion and a heddle frame, the first and second motion transmission members being connected by a connection member, and the heddle frame being mounted on the second motion transmission member.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: August 5, 1986
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Hiroshi Takada
  • Patent number: 4546800
    Abstract: The present invention relates to draw lever assemblies mounted on the dobbies and other mechanisms for forming the shed on weaving machines. Between the levers born by the fixed pin there are interposed axial stops, each of which includes two discs profiled to form between them a raceway for balls. The assembly is subjected to a constant axial pressure, furnished for example by an elastically deformable washer.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: October 15, 1985
    Assignee: S. A. des Etablissements STAUBLI (France)
    Inventor: Jean P. Froment
  • Patent number: 4534385
    Abstract: The invention relates to a levelling device for weaving mechanisms incorporating cams of the negative type. With each oscillating lever there is associated a tipping pawl adapted, under the effect of a control member common to all the pawls, to bear yieldably against the edge of the lever in question and to cooperate with a retaining stop formed thereon. Under these conditions, it is the weaving mechanism itself which furnishes the effort of levelling the heddle frames.
    Type: Grant
    Filed: September 23, 1983
    Date of Patent: August 13, 1985
    Inventors: Jean-Paul Froment, Louis P. Houlon
  • Patent number: 4481979
    Abstract: This invention relates to a heald frame driving means having resilient transmission members connected to a shedding lever of a negative dobby machine or cam machine disposed above the heald frame and engaged with the heald frame through working levers and connecting rods to move the heald frame downward, and tension coil spring means to apply upward restoring force, thereby reducing tension in and abrasion of the resilient transmission members.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: November 13, 1984
    Assignee: Yamada Dobby Co., Ltd.
    Inventor: Hiroyuki Mizuguchi
  • Patent number: 4460020
    Abstract: Each odd-numbered heddle frame is actuated by a pair of rockers mounted on two horizontal axes. Each even-numbered heddle frame is actuated by a pair of rockers which are mounted on two other horizontal axes. The resultant increase in the pitch between rockers on one and the same axis permits the use of the actuating device for heddle frames of small thickness.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: July 17, 1984
    Assignee: Societe Alsacienne de Constructions Mecaniques de Mulhouse
    Inventor: Yves Juillard
  • Patent number: 4417605
    Abstract: Fabric weaving method, which applies to producing a plain fabric, a twill fabric and a satin fabric, comprising providing two parallel groups each consisting of a certain number of heddle harness frames each of which carries every nth heddle of the succeeding heddles which alternate as a multiple of a certain number, and causing successive adjacent heddles to be operated by the corresponding harness frames in the different harness frame groups. In one embodied form, each individual heddle alternates between the different groups in being raised or lowered to permit the corresponding warp yarns to be raised or lowered, for each succeeding weft shooting or picking process. In another embodied form, each pair of heddle harness frames, one in one group and the other in the other group, alternates in being raised or lowered to permit the corresponding warp yarns to be raised or lowered for each suceeding weft shooting or picking process.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: November 29, 1983
    Inventor: Shoji Miyashita
  • Patent number: 4392515
    Abstract: The invention relates to a weaving loom with waving shed heddle frames which when built in accordance with the invention insures that the heddles do not have lateral displacement when the frames are operated by controls respectively acting on both sides of the frames so that the motions of the respective sides differ from each other in their pattern. The bars of the frames are pivotably connected to the supports of these frames. These supports slide in stationary guides which restrict the lateral motion of the frames.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: July 12, 1983
    Inventor: Albert Moessinger