Abstract: A drive mechanism for driving a heald frame of a weaving machine, the drive mechanism having a crank rotating about a crank axis, a coupling rod, and a swivel lever having a first arm and a second arm, the coupling rod is linked to the first arm of the swivel lever by a second hinged joint adjustable with respect to the first arm of the swivel lever, wherein in at intended locations of the second hinged joint with respect to the first arm of the swivel lever, the second hinged joint is situated on an arc of an imaginary circle when the swivel lever is in a central position between the upper position and the lower position, wherein the imaginary circle has a radius that is equal to the distance between the first hinged joint and the second hinged joint, and the imaginary circle has a center that coincides with the crank axis.

Abstract: A drive mechanism for driving a heald frame of a weaving machine, the drive mechanism having a sensor device, wherein the sensor device has at least three members having both a target set with one or more targets and a detector set with one or more detectors, wherein one of the detector set and the target set is arranged at the swivel lever and the other one is arranged stationary on the weaving machine, targets of the target set and/or detectors of the detector set have different characteristics for generating a first signal when approaching the measuring position from the upper position or when departing from the measuring position towards the upper position and for generating a second signal when approaching the measuring position from the lower position or when departing from the measuring position towards the lower position, and the second signal differs from the first signal.

Abstract: Gripper band (1) for a gripper weaving machine with a first part (13),a second part (14)and two longitudinal ribs (21), el wherein a thickness of the second part (14) near a centerline (31) of the gripper band (1) is larger than a thickness of the first part (13) near the centerline (31) of the gripper band (1), and in that the gripper band (1) comprising the first part (13), the second part (14) and the longitudinal ribs (21) is one single, integral structure formed of composite material. Gripper unit for a gripper weaving machine with a gripper (2, 3) and such a gripper band (1).

Abstract: A drive mechanism for driving a heald frame (1) of a weaving machine, the drive mechanism (2) comprising a crank (3) rotating about a crank axis (4), a coupling rod (5), and a swivel lever (6) having a first arm (8) and a second arm (9), wherein the coupling rod (5) is linked to the first arm (8) of the swivel lever (6) by a second hinged joint (17) adjustable with respect to the first arm (8) of the swivel lever (6), wherein in all intended locations of the second hinged joint (17) with respect to the first arm (8) of the swivel lever (6), the second hinged joint (17) is situated on an arc of an imaginary circle (19) when the swivel lever (6) is in a central position between the upper position and the lower position, wherein the imaginary circle (19) has a radius (R) that is equal to the distance (L) between the first hinged joint (16) and the second hinged joint (17), and the imaginary circle (19) has a center (33) that coincides with the crank axis (4).

Abstract: A drive mechanism for driving a heald frame (1) of a weaving machine, the drive mechanism (2) comprising a sensor device (20), wherein the sensor device (20) comprises at least three members comprising both a target set with one or more targets (21, 22) and a detector set with one or more detectors (23), wherein one of the detector set and the target set is arranged at the swivel lever (6) and the other one is arranged stationary on the weaving machine, wherein targets (21, 22) of the target set and/or detectors (23) of the detector set have different characteristics for generating a first signal (24) when approaching the measuring position from the upper position or when departing from the measuring position towards the upper position and for generating a second signal (25) when approaching the measuring position from the lower position or when departing from the measuring position towards the lower position, wherein the second signal (25) differs from the first signal (24).

Abstract: Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).

Abstract: Weaving machine, device and method for tucking a thread end (11, 12, 24, 25) of a weft thread (10) into a subsequent shed (15), which thread end (11,12,24,25) extends outside a shed (15), wherein thread ends (11, 12, 24, 25) are tucked into a subsequent shed (15) by means of a tucking device (13,14,28,29), wherein a thread end (11, 12, 24, 25) is selectively moved by means of a moveable arm (9, 19), and wherein the thread end (11,12,24,25) moved by the moveable arm (9, 19) beyond the separator element (8, 18) is separated by the separator element (8, 18) from the working area of the tucking device (13, 14, 28, 29).

Abstract: Method for introducing a weft thread in a weaving machine which comprises a device (10) for introducing a weft thread (3, 64), which method comprises adjusting a control parameter and adapting the number of insertions for determining the mean deviation of an insertion parameter. Weaving machine which comprises a device (10) for employing an abovementioned method.

Abstract: A shed-forming component (1, 3, 4, 24, 25, 26, 27, 28) of a shed-forming apparatus includes an information source (12, 16, 17, 18, 23, 29, 33) which may be connected to a control unit (13) for transmitting data about the specification of the component and/or data about operating parameters of the component during weaving to a control unit (13).

Abstract: Heddle frame having a transverse beam (2, 3) comprising a transverse profile (22, 63) and a reinforcing profile (20, 21, 52, 57, 58, 61, 62) which are glued to one another, the transverse beam (2, 3) having an undulating adhesive surface (46, 47, 48, 51, 55, 56, 59, 60) which can interact with an adhesive (42) which extends between the transverse profile (22, 63) and the reinforcing profile (20, 21, 52, 57, 58, 61, 62) in order to glue the transverse profile (22, 63) and the reinforcing profile (20, 21, 52, 57, 58, 61, 62) to one another. Transverse beam for a heddle frame and method for producing a heddle frame.

Abstract: A drive system for a weaving loom includes a switching wheel (5) which can be driven by of a main drive motor (7) and can be axially displaced between at least two switching positions, which, in a first switching position, is in drive connection with two groups of elements to be driven (9, 10, 11; 12, 13, 14) and, in a second switching position, is disengaged from one of the groups of elements to be driven (12, 13, 14). A device (15) is provided which becomes active as the drive connection with one group is disengaged and which has a tooth element (22) which engages with a gear wheel (12) of the group of elements to be driven (12, 13, 14) and disengaged from the switching wheel (5).

Abstract: A shed-forming component (1, 3, 4, 24, 25, 26, 27, 28) of a shed-forming apparatus includes an information source (12, 16, 17, 18, 23, 29, 33) which may be connected to a control unit (13) for transmitting data about the specification of the component and/or data about operating parameters of the component during weaving to a control unit (13).

Abstract: Method for introducing a weft thread in an air weaving machine, wherein the instant when the supply of compressed air to a set or sets of auxiliary blowers is interrupted is controlled based on measurements on the transported weft thread during transport of this weft thread.

Abstract: Fabric support and a weaving machine using the support, in which the fabric support (1) includes several supporting elements (10, 11, 12, 13, 14, 15, 16, 17, 18, 19) which can be arranged next to one another and a profiled section (20, 30, 40, 50, 60) which is supported by the supporting elements (10, 11, 12, 13, 14, 15, 16, 17 18, 19) and includes a guide surface (22) for a fabric (3).

Abstract: A method for insertion of a weft thread (2, 3, 4) on a weaving loom whereby insertion parameter is determined and in which on the one hand at least one control parameter for an insertion is adapted or, on the other hand, at least one control parameter for a weaving cycle is adapted. A weaving loom with control devices (41,42) and a selection device (43) for the application of a method as stated above.

Abstract: Weaving machine, method and selvedge forming apparatus for introducing into a shed an end (30A) of a weft thread (30) which has been inserted into a shed, the selvedge forming apparatus (4, 5, 6) being provided with a device (20) for introducing the end of the inserted weft thread into a subsequent shed, wherein the selvedge forming apparatus (4, 5, 6) includes a blowing device (50) having at least one blowing opening (51) which, in use, is positioned at the level of the plane of a selvedge (16, 17) of the woven fabric (2, 3), with the blowing device (50), blowing essentially toward the beat-up line (36) in a direction opposite to the direction of fabric movement.

Abstract: A device for inserting of weft threads in an air jet weaving machine comprising at least one set of main nozzles (13, 14) which are mounted in series, and to which individual regulating valves (21, 22) are assigned, is provided with a control and regulating unit (17) which defines the individual settings of the regulating valves (21, 22) with respect to one another, in order to form an overall value for the intensity of the impulse transmission of the set of main nozzles with each regulating valve contributing a proportion of the overall impulse intensity.

Abstract: A valve (13a) is described comprising: a housing (50) having a fluid inlet for (54) receiving a flow of compressed fluid and a fluid outlet (55); a flow duct (60) movably mounted with respect to the housing, the duct (62) having a fluid inlet (62) for receiving a flow of compressed fluid and a fluid outlet (65), the fluid outlet being positioned around at least a part of the circumference of the duct and being dimensioned to provide a different flow rate at different sections or positions around the circumference of the duct; the fluid outlet of the housing being alignable with a portion of the fluid outlet of the duct to provide a flow rate related to the relative position of the portion of the fluid outlet of the duct and the fluid outlet of the housing; and, a drive element (70) for moving, e.g. rotating, the duct with respect to the housing such that a desired portion of the fluid outlet of the duct aligns with the fluid outlet of the housing. The valve may operate as a so-called throttle valve.

Abstract: Fabric support and a weaving machine using the support, in which the fabric support (1) includes several supporting elements (10, 11, 12, 13, 14, 15, 16, 17, 18, 19) which can be arranged next to one another and a profiled section (20, 30, 40, 50, 60) which is supported by the supporting elements (10, 11, 12, 13, 14, 15, 16, 17 18, 19) and includes a guide surface (22) for a fabric (3).

Abstract: A heald frame includes at least one frame part (10, 14) at least one heald carrying rod (16). A multitude of projections (25, 26), which are arranged one behind the other while being situated essentially in a row, are formed from the heald carrying rod (16) while projecting therefrom by means of plastic deformation and are held inside a recess (28) or the like of the frame part (10, 14).