Abstract: A supporting bar of a heddle frame comprises a hollow body and a connecting part (2) adjoining at a narrow side of the hollow body the support of the heddle carrying rod (3) located at its end. The supporting bar including these parts forms a welded structure comprising planar sheet metal section (4-14) forming walls of such parts. Relatively thin sheet metal section (5, 6, 9, 10) forming longitudinally extending broad side walls are welded to sheet metal sections (4, 7, 8, 11, 12) having a considerable larger material thickness and forming longitudinally extending narrow side walls. The planar sheets are welded together by the use of laser welding to form the supporting bar which has a light weight and high alternate bending strength.

Abstract: Weaving loom blade crossbeam that comprises two edge areas separated one from the other by a median area, with one of the edge areas strengthened in the longitudinal direction of the crossbeam by a material that contains an armature of fibers, and with the other edge area carrying a warp catch bar and displaying, possibly, one slit, at least. When the median area forms one whole with the aforesaid other edge area and is therefore made, partially at least, of the same metal as part, at least, of this other edge area, this median area comprises a plate or metal frame, whereas, when the median area consists of a part separate from this other edge area and fitted to the latter by glueing or moulding, this median area is formed essentially by a material strengthened by fibres.

Abstract: A heddle frame which has a pair of rectangular hollow metal cross rails, a pair of heddle bars associated with the cross rails for supporting heddles and a pair of end braces connected to said cross rails and said heddle bars and two or more connections between the cross rails and the heddle bars intermediate the end braces. The connections between the heddle bars and the cross rails comprise a hanger which may be formed of a synthetic polymeric material which is rigid, has a first portion which extends into an opening in the bottom of the hollow cross rail, and a second portion which is attached to the heddle bar. The upper portion of the hanger has a closed rectangular opening extending through it into which is fitted a metal insert of substantially the same thickness as the upper portion of the hanger.

Abstract: On the frame stave (1) of a heald frame there is by means of a rod holder (5) a heald carrying rod (6) arranged in such a way that its distance to the frame staves (1) can be changed. An eccentric ring (10) with a polygon shaped outer circumference engages for this purpose in a rectangularly shaped recess (7) provided in the rod holder (5). The eccentric ring (10) is securely connected against free rotation with an intermediate element consisting of a concentric ring (11) and a center core (12) which is securely connected against free rotation.

Abstract: An improved harness frame for a weaving loom for adjustably supporting a plurality of heddles in planar array therein, upper and lower spaced horizontal frame members of the harness frame having elongate, slotted guide channels for slidably receiving channel-insert portions of a heddle assembly, centerstays, and associated frame hardware for positional adjustment therealong, and fluid-actuated, expandable tubes located in the frame members and disposed for communication with the guide channels to exert a pressure force against the channel-insert portions of the centerstays, heddle assembly, and frame hardware to fix the positions of the same at desired locations along the frame members.

Abstract: A lightweight shear-resistant frame slat (A) is disclosed for use with a heddle frame assembly (10). The frame slat includes a thin wall, roll-formed steel back plate (B) and a thin wall, roll-formed steel front plate (C). A first ledge (38) is formed on the back plate (B) and a second ledge (54) is formed on the front plate (C). The ledges (38) and (54) are spaced apart to define a heddle rod mounting socket (62) which receives a stem (63) of a heddle rod (20) to mount the heddle rod with reduced shearing forces on the frame slat. A box shaped core space (58) is formed between the front and back plates in which a honeycombed structure (66) is disposed for increasing the stiffness of the frame slat. A reduced neck portion (50) is formed between the mounting socket (62) and the core space front and back sides are flush with each other and may be secured by any suitable means such as adhesive bonding.

Abstract: A heald frame comprises two lateral supports which each have a projecting portion (2) which is received in a recess (3) at the end of a frame stave (4). A wedge (9) is mounted in the frame stave (4) within the recess (3) so that it is closer to the heald-carrying rod. A surface (11) of the wedge (9) is inclined towards the end of the frame stave (4) and cooperates with a correspondingly inclined surface (6) at the lower side of the projecting portion (2). The surfaces are pressed together by means of a clamping screw (8) which presses on the opposite surface of the projecting portion (2). The lateral support (1) is pulled against the frame stave (4) as a result of the engagement of the inclined surfaces of the wedge and projecting portion.

Abstract: A heddle frame construction for a loom is disclosed which includes a bottom frame slat 14 constructed of a roll-formed steel tubular element which carries a latch block 30 which connects with a hook connector 28 of a heddle frame drive mechanism 26. A top frame slat 12 is constructed in part of a light extrusion and in part of a steel tubular element. Preferably, a first part includes a hollow steel tubular slat beam 36, 50, 70, 90, 100 having a shoulder on which a neck of a second part in the form of a connector flange 42, 56, 76, 92, 104 is carried. The connector flange has affixed thereto an upper supporting heddle rod 20 by means of rivet connections 21. The neck is uniquely constructed to include groove means 44, 62, 82 which interlock with free ends 38 and 40, 56a and 56b, 72 and 74 of the shoulder of the slat beam.

Abstract: A rod hook (A) is fixed to a heddle rod (20, 22) by which heddles (24) are supported in the frame (10) with unrestricted mobility. A slidable connecting sleeve (C, D) is carried by frame slats (12, 14) which releasably connects the heddle rod hook (A) to the frame slat for convenient connection and disconnection.

Abstract: A heddle frame 10 for a loom is disclosed which includes an extruded, light frame slat 12 and heddle rod 20 construction wherein a hardened metal cap B is received over outer free ends 40, 42 of the heddle rod 20. Cap B includes rear and forward wear surfaces 44, 46 which protrude past planar surfaces 30, 32 of a web portion 26 to take the wear and hold the opposing interior surfaces of the end slots 24a, 24b of the heddles 24 out of contact with the soft material of the web portion. Cap B is formed of resilient legs 58, 60 which provide a mechanical clamp when received over the free ends of the heddle rod.

Abstract: A dual-face composite frame slat for a heddle frame of a loom includes a long-wall face (30) and a parallel short-wall face (32). Faces (30) and (32) are spaced from one another and define a core space (45) and upper and lower frame slat edges (36) and (38). Integral channel stiffeners (40) and (42) are interposed in the frame slat edges to provide integral beam structure. Faces (30) and (32) are constructed as a ten ply graphite reinforced plastic layup. Channel strips (40) and (42) have a four ply construction. A plastic heddle rod (22) is carried by a free flange portion (34) of the long-wall face and includes metal wear resistant caps (50).

Abstract: An intermediate support in engagement with heddle carrying rods of a weaving heddle frame includes a body member having end loops at opposite ends for engagement with the rods, at least the body being of vibration absorbing material, and the end loops engaging the rods but without being fixedly secured thereto. The end loops are spaced apart for maintaining a constant spacing of the rods, and the intermediate support is capable of being laterally shifted along the rods to accommodate the positioning of the weaving heddles therealong.

Abstract: An assembly and method for a heddle frame A for a weaving loom is disclosed wherein the heddle rod 20 upon which the end eyes of the heddles H are hooked and travel is more securely and reliably attached to the slat 12 of the heddle frame. The assembly and method includes a plurality of studs 24 having a uniform effective rivet length welded at spaced intervals to the rod 20 which are then inserted into countersink openings 28 in the ledge 18 of the slat 12 and headed therein for a more accurate and reliable rivet connection. The face 20a of the heddle is smooth and completely unbroken to reduce wear between the heddles and rod.

Abstract: A weaving heddle frame has frame staves of lightweight construction with each stave having at least one heddle carrying rod located on one side thereof for taking up heddles with laterally open end loops. The rod has a longitudinal edge facing the frame stave and has an outwardly facing front side. A cover of a hardness which exceeds that of the rod engages the edge and side thereof and is interconnected with the rod for improving upon the resistance thereof against wear caused by the heddles.

Abstract: A heald frame for looms comprises a frame structure and support members which support opposed lateral edges of the frame structure. The support members, together with vertically reciprocating drive units connected thereto, are installed in the loop. The frame structure is adapted to be removably attached to the support members, so that the frame structure can be simply attached to and detached from the loom. Intermediate stays are attached at suitable positions and extend between the upper and lower frame staves of the frame structure, while elastic members are disposed between the respective connecting portions of the frame staves and side stays of the frame structure.

Abstract: A harness frame for looms includes a pair of parallel spaced vertical planar side plates, and a pair of heddle-support bars extending perpendicularly from the vertical side plates. Each of the vertical side plates has an intermediate portion which, in horizontal cross section, extends at right angles to the general plane of the harness frame.

Abstract: A harness for narrow-fabric weaving looms comprises a plurality of heddles, and a rectangular heddle frame including first and second pairs of heddle-supporting bars projecting from opposed vertical frame sides toward and terminating short of each other, the heddles being divided into two groups carried separately by the first and second pair of bars at opposite ends of each heddle. The harness further includes a pair of connectors each connecting one of the first pair of bars and one of the second pair of bars at their free ends, thereby preventing the heddle-supporting bars from shaking or vibrating during weaving.

Abstract: A harness for narrow-fabric weaving looms comprises a plurality of heddles, a rectangular heddle frame including at least one pair of horizontal bars projecting from one of opposed vertical frame sides for supporting thereon the heddles at opposite ends of each heddle, and a heddle retainer on the heddle frame for preventing the heddles from shifting on the horizontal bars. The heddle retainer includes an elongate strip having a portion extending parallel to the horizontal bars. The portion of the strip is engageable with the heddles at one of the opposite ends of each heddle.

Abstract: A rod hook device is disclosed for a heddle frame of a weaving loom for connecting a heddle rod to a frame slat of the heddle frame wherein the rod hook device includes a base portion receivable in a longitudinal groove formed in the frame slat provided with unique biasing means which facilitate sliding of the base in the groove while providing a tight engagement between shoulder means formed on the base portion and projections formed in the groove.

Abstract: A resilient drive-transmitting intermediate element is provided between the retaining element and the shaft is rotatably mounted in a bore in the shaft and has an adjusting eccentric member which is engaged in an aperture in the retaining element. The resilient intermediate element comprises an inner member of substantially the same diameter as the bore and an outer eccentric ring shaped member so mounted on the inner member to rotate therewith. The outer eccentric ring shaped member can be introduced together with the retaining element into the shaft and the inner member can be introduced through and retained in the bore. Rotation of the complete intermediate element adjusts the retaining element relative to the shaft.

Abstract: An improved shed forming device having two-part heald holders the parts of which are secured together by a quickly detachable connecting means. The means connecting the two portions of the holder is made as a locking means in which the extremity of one portion of the holder is inserted or telescoped into the other portion and is held in the inserted position by a selectively releasable pawl. With the heald holders of the invention, warp threads may be drawn into the healds, when changing the weaving design or the number of healds in the individual holders, outside and away from the loom; thus reducing the idle time of the loom to a minimum. With the locking means there is preferably provided means for unlocking the pawl and for shifting the two portions of the holder relative to each other.The device of the invention may incorporate a cursor running or guide means extending across the loom, the cursor selectively locking the two portions of successive holders together or unlocking them from each other.

Abstract: A loom harness comprising a harness frame composed of longitudinal and transverse beams and at least one holder element mounted at one of the beams for mounting a further member, for instance a transverse strut or heddle rail. Between the holder element and the beam carrying the same there is interposed at least one elastic intermediate element through which there is transmitted the force flux between the holder element and the beam.

Abstract: Heddle frames are disclosed which have heddle supporting rods with provisions for impact resistance, for reduction of wear and abrasion, and for noise reduction, which is accomplished by using heddle rods with impact absorbing material at the impact and wear surfaces which contact the heddles. The heddle supporting rods in long frames may be supported intermediate their ends, and the heddles may have C, J, or O shaped end eyes, different heddle rod cross sections and be of differing materials depending upon the requirements of the particular installation.

Abstract: Heddle frames are disclosed having heddle supporting rods with provisions to resist impact and for reduction of wear and abrasion and for noise reduction, this being accomplished by using a heddle rod with synthetic plastic material at the impact and wear surfaces or a heddle rod of such synthetic plastic material. The heddle rods in long frames may be supported intermediate their ends, and the heddles have C-shaped end eyes or closed end eyes depending upon the requirements of the particular installation.

Abstract: A loom harness having a conventional frame of side rails and top and bottom main rails. The heddle rods, carried by spring clips, support the heddles in the frame. Additional support is provided by hanger assemblies spaced laterally along the main rails. Each hanger assembly is formed of a pair of brackets which join together to surround the rail, one bracket carrying a plate with a tongue protruding through a slot in the main rail. The exposed portion of the plate has a sidewise extending lug received in a keyhole slot in the heddle frame. Lateral shifting of the heddle rod permits disengagement of the rod from the lug. A second embodiment provides a threaded member in the hanger assembly for limited vertical adjustment to the position of the heddle rod.

Abstract: A heddle frame for weaving looms is disclosed having heddle supporting rods detachably carried by the top and bottom rails of the heddle frame, the rods being made in a plurality of interengaging sections.

Abstract: The drive includes actuators having respective heald frames secured to the upper ends thereof, the lower ends having mounted thereon followers permanently engaging moving cam plates controlling the reciprocation of the heald frames. A longitudinal groove is made in each one of the actuators, receiving therein a spring having its axis offset with respect to the vertical axis of a respective follower, in the direction of movement of the cam plates. The proposed structure of the drive reduces its dimensions and enhances the reliability of its performance.

Abstract: The heddle carrying rods are provided with open ended axially extending slots in each end. Connectors are provided having longitudinal edges complementary to the longitudinal edges of the slots to define a tongue and groove connection. One end of a connector may be slidably connected in the slot with the opposite end having a locking configuration to retain the connector in the slot for preventing the removal of heddles from the rod, a bevelled end piece configuration to facilitate the insertion of heddles on the rod or an identical symmetrical configuration for insertion into a slot in another rod to facilitate transfer of heddles from one rod to another.

Abstract: A heddle frame is provided with a frame stave having a heddle carrying rod connected to and disposed below the stave in spaced parallel relation. The ends of the frame stave are connected to lateral supports in such a manner that the lateral supports will be offset from the ends of said heddle carrying rod to allow for the placing on and removal of heddles on said rod without interfering with the lateral supports. Pivoted locking levers ae provided adjacent each end of the rod to selectively allow the placing on and removal of heddles on said rod.