Abstract: A weft threads saving device for shuttle-less weaving machines comprises a comb (2), a temple (3), a guiding plane (6), a fixed blade (4), a movable blade (5) of a shear (17), a fabric winding cylinder (8) and a suction system (7) connected both to the guiding plane (6) and to the fixed blade (4) of the shear (17).

Abstract: A weft thread cutting device for shuttleless looms is placed between a fabric edge, a comb and a warp mouth, on one side, and a weft thread selector, on the other side. Weft threads, coming from a plurality of eyelets, join at a vertex located at the fabric edge and at the beating line of the comb. The weft thread cutting device has a rotating disk with a cutting edge, configured to cut the weft threads by a motor which keeps the rotating disk in rotation, and a step control motor, which, through a rotating shaft provided with an eccentric, controls motion of a hinged lever swinging with respect to a longitudinal axis of the step control motor. The hinged lever is shaped, at one end, in the form of two arms, respectively resting on the surfaces of two elastic plates, and is connected, at the other end, to the eccentric.

Abstract: A weft thread cutting device for shuttleless looms is placed between a fabric edge, a comb and a warp mouth, on one side, and a weft thread selector, on the other side. Weft threads, coming from a plurality of eyelets, join at a vertex located at the fabric edge and at the beating line of the comb. The weft thread cutting device has a rotating disk with a cutting edge, configured to cut the weft threads by a motor which keeps the rotating disk in rotation, and a step control motor, which, through a rotating shaft provided with an eccentric, controls motion of a hinged lever swinging with respect to a longitudinal axis of the step control motor. The hinged lever is shaped, at one end, in the form of two arms, respectively resting on the surfaces of two elastic plates, and is connected, at the other end, to the eccentric.

Abstract: A bringer gripper for looms without shuttles, where the weft yam is placed in an upper notch and in a gripping organ, particularly suitable for the simultaneous presentation of one or more wefts to the warp inlet and to the taker gripper, in which the upper notch is shaped with a multiple number of throats of different axial length. The weft yarns fit into the bottom of these throats and are essentially offset in the gripper's direction of motion.

Abstract: A modular device for weft yarn presentation in a shuttleless loom, operated by linear electric motors which present the yarn by using rods mounted on sliders which rotate to transition the rods from raised standby positions to lowered delivery positions. The linear motors include fixed plates and pivotally mounted sliders, each carrying a rod. The fixed plates are assembled such that the plates angularly diverge from one another from adjacent the pivotal mounting between the sliders and plates and form acute angles therebetween. By using this arrangement, the delivery segment for the yarns is significantly shorter and the angle of presentation of the yarns is substantially narrower.

Abstract: A device for weft yarn presentation in a shuttleless loom is operated by linear electric motors. The motors include fixed plates and movable plates pivotally mounted to the fixed plates. Yarn presenting rods are carried by the pivotal plates and rotate from raised stand-by positions to lowered delivery positions. The respective axes of rotation of the pivoted plates are arranged on a line skewed to the path of movement of the gripper so that the weft yarn delivery positions are close together.

Abstract: A giver gripper for a gripper loom comprising a gripper body having a substantially U-shaped cross section including a base and two laterally spaced side walls, one of the side walls adapted to be closer to an associated loom reed, the laterally spaced side walls each having a forward vertical portion, wherein a forwardmost point of the forward vertical portion of the one of the side walls projecting more forwardly than the other of the forward vertical portions; a cover member located on the gripper body between the laterally spaced side walls, the cover having a forward tip located substantially between the forward vertical portions of the side walls, the forward tip having a height greater than the base of the gripper body and less than the forward vertical portions of the side walls; a gripping member for a weft yarn positioned on the base adjacent of the side walls; a guide and positioning groove for the weft yarn; a deflector for maintaining the weft yarn inclined within the giver gripper; wherein the c

Abstract: A gripper loom tape head including a base, comprising a gripper support crest attached to the tape head, the tape head having a plurality of through fixing holes flared towards the base of the tape head and arranged in two longitudinal rows on one and the other side of a longitudinal axis of the tape head, which comprises two flared holes, of greater diameter than the holes, on the longitudinal axis in proximity to the longitudinal ends of the crest, characterized in that the gripper support crest is prefabricated in any desired material, is provided with a series of through fixing holes in proximity to its lower end, is arranged along the longitudinal axis of the underlying tape head perpendicular to this latter and spaced therefrom by a certain gap, and is maintained in position for all or nearly all its length by a thermoplastic injection-molding material which surrounds most of the prefabricated crest and becomes inserted into the fixing holes of this latter, into the gap between the crest and the tape he

Abstract: A device for measuring the warp yarn tension of a woven fabric in a loom, which includes a fixed deviation bar which extends across the entire loom width and cooperates with a device measuring warp yarn tension, the fixed deviation bar having a central or intermediate portion for the fabric under formation, the intermediate portion being of a length less than that of a minimum formable fabric width and being detached from the remaining sections of the bar by thin breaks in the deviation bar. The intermediate portion is supported via at least one load cell. The device is located in the loom to measure the tension of the fabric already woven and prior to its being wound on the winding beam.

Abstract: A guide system for a gripper insertion tape in a shuttleless loom which includes a sley with a reed, through the dents of which pass upper and lower warp yarns forming a shed, at least one insertion tape moving with reciprocating motion between the upper and lower warp yarns of the open shed, a gripper fixed to one end of the tape to convey a weft yarn through the shed, and a plurality of guide teeth fixed spaced apart on the sley and projecting through the lower warp yarns of the shed when the shed is open. The teeth are provided with a bearing and guiding surface for the insertion tape and for the gripper. The bearing and guiding surface of the teeth includes a convex surface which extends in the direction of the warp yarns. A control mechanism is also provided making guiding of the insertion tape and the gripper more effective during travel thereof within the shed.

Abstract: A fill end catching/clamping system in a fill drive clamp body provided at one end with a hook. A wedge is designed to axially move inside the hook. A wall of the wedge cooperates with a wall of said hook to form a "V"-shaped hollow in which the fill end is clamped. At least one elastic blade, positioned below the wedge, has a side wall that cooperates with the wall of the hook which forms one side of the "V"-shaped hollow to assist in retaining the fill end or ends in the "V"-shaped hollow.

Abstract: A shuttleless loom weft brake includes at least two braking units arranged in series in the weft yarn travel direction and operating mutually out of phase. Each unit formed from a vertically arranged elastic blade at least partly of ferromagnetic material and a flat support plate of non-magnetic material, between which the weft yarn is made to travel. The blade is fixed to the frame of the weft brake by the end which is closer to the feed bobbin and is preloaded in a direction urging it away from said support plate and against a respective stop pin. The blade is pressed against the support plate by the attraction of an at least one electromagnet of adjustable excitation.

Abstract: A device for continuously regulating the feeler sensitivity in the control of weft insertion in a loom. The device includes a selector having a memory into which the sensitivity value corresponding to the count of the weft passing through the eye of each rod is fed. The selector is electrically connected to a piezoelectric sensor-comparator, and is controlled by a logic control unit. The logic control unit provides electrical pulses or signals for selecting weft presenter rods of a presenter, and the same signal from the logic control unit is provided to the selector, such that the selector utilizes the signal from the logic control unit for providing the feeler sensitivity information to the sensor-comparator.

Abstract: A system for maintaining a constant terry height in forming a terry cloth despite loom stoppage, e.g., to correct yarn breakage. The system includes a proximity sensor which is positioned at a predetermined distance from a floating roller, and on the same side of the floating roller as a loading spring. The proximity sensor causes stoppage of an electric motor of the feed beam for the terry warp yarns which were previously driven in a forward direction by the electric control center. Upon sensing movement of the floating roller by a predetermined distance, the electrical control sensor causes motion inversion of the electric motor to reverse the movement of the feed beam for the terry warp yarns.

Abstract: A mechanism for transmitting the selection command for a reed beating position in a terry loom, the terry loom including a connecting rod, one end of which is hinged to the common articulated joint of two pivoted arms by which the support body for the toothed sector mounted on the axis of rotation of the loom sley is hinged to the lower end of the sley, the other end being hinged to the end of the rocker lever. The other end is hinged so as to lie on the axis of rotation of the sley when said rocker lever rests against the fixed shoulder of the loom.

Abstract: A control system for a plurality of tuck-in selvedge forming devices in a loom having a variable reed beat-up position includes a main shaft, a drive shaft connected to all the tuck-in selvedge forming devices, a modulator driven by the main shaft and having an output shaft which pauses at least once during each revolution of the main shaft, as well as a coupling unit rotatable with the drive shaft and operative to be selectively rotatably coupled to the modulator output shaft so that the drive shaft is driven by the main shaft. The coupling unit includes a ring fixed to the drive shaft and a first cover pivoted to the ring so that a key can enter into the recess of the modulator output shaft to rotatably couple the coupling unit to the modulator output shaft during its pauses. A second lever is biased so as to follow contours of a control cam and prevent the first key from entering the recess of the modulator output shaft.

Abstract: A loom with a leno-weaving device which can act completely within the loom heddle frames, with the two links of the leno-weaving device slidably supported within a slide guide. The slide guide extends from within the heddle frames, and is located above the reed, with the two links driven by a single cam drive and a pair of spring-loaded pushers. The spring-loaded pushers can extend into the heddle frames, and are connected to one end of the links, with the links thus raised and lowered within the heddle frames while being slidingly supported by the slide guide. An advantageous cam drive can also be provided which allows for switching of the mode of the operation, to switch the type of weaving being performed by axially moving a shaft upon which cams of the cam drive are mounted.

Abstract: A device for automatically varying, during the transient states following loom stoppages, the shed vertex position in the loom. The device consists of a sensor for determining the beat-up pulse intensity of the loom reed. The device also is connected to a comparator which receives a predetermined set value corresponding to the beat-up pulse intensity of the reed during normal operation. The output of the comparator is used, through a control unit, to synchronously drive the electric motors that operate the beam and the take-up roller of the loom, respectively.

Abstract: A device for automatically controlling the warp yarn tension in a loom in which the fixed deviation bar for the fabric under formation is supported only at its ends. A deformation sensor, moreover, is directly supported on the deviation bar. The deformation sensor is electrically connected to a comparator to which an adjustable set-value unit is also connected, the output of the comparator being used to drive the geared motor of the warp yarn feed beam to control the warp yarn tension.

Abstract: A shuttleless loom in which that part of the reed traversed, by the false selvedge yarns and the binding yarns for the side edges of the fabric under formation is detached from the rest of the reed. The detached part is made easily removable from the loom sley, whereas the grids of the false selvedge formation device and of the binding device are mounted on two rigid frameworks. These frameworks are easily removed through a quickbreak connection from their supports, these being driven with opposing reciprocating movement within guides fixed to the loom.