Abstract: A taker gripper for loom use, of the type in which a wedge moves axially within a hook. The weft to be drawn, and which is wedged into the narrow V recess formed on one side between the wedge and the hook, is also maintained elastically pressed against the shallow recess that is provided in the outer lower surface of the hook by an elastic blade. The elastic blade, moreover, is fixed by its rear end to the wedge or to the gripper body. The inner surface of the hook on the side opposite the side that comprises the narrow V recess is formed so that it diverges from the corresponding surface of the wedge and from the direction of wedge axial movement.

Abstract: A taker gripper for loom use in which the weft is gripped and clamped through the combined action of two weft gripping and clamping members. These members are arranged in series along the path of the weft within the gripper. One of the members is of the elastic type and the other member is of the wedge type.

Abstract: A mechanism for selecting the movement of the movable members of a tucked selvedge forming device. The device is suitable for operation on terry looms which comprise a feeler pivoted at one end to the device casing and cooperates via a spring with one of a plurality of cams for driving operating levers. This arrangement causes a bridge frame rigid with it to rock a position in which the bridge of the frame is interacting with stop teeth of the operating levers to a position in which there is no longer interaction and in which a metal armature rigid with the feeler rests against an electromagnet supported by the device casing.

Abstract: A device for selecting the shift of a rocker arm of a reed operating mechanism in a terry loom includes two push rods that are hinged to the rocker arm and to two terry height adjustment levers. Each lever has a shoulder tooth cooperating with a corresponding coupling pin slidable within a guide in the control lever, urged into an active position against the action of a spring by a corresponding selection lever carrying an armature for a corresponding fixed electromagnet. The selection lever cooperates with a ledge on the control lever by way of a spring tending to withdraw the armature from the electromagnet.

Abstract: An weft yarn gripping device in a shuttleless loom in which the spring-loaded lever for pressing the gripping foot onto the relative rigid gripping surface cooperates with a travel stop block which absorbs part of the load exerted by said spring. The block is connected to the foot by a leaf spring rigid with the lever, and the leaf spring is inserted into a slot in a connection block which is rigid with said foot. Various mechanisms are also provided for varying the load transmitted to the gripping foot.

Abstract: Device for selection and presentation of the weft yarns for high-speed looms, in which the mechanism of selection of the weft yarns comprises a set of collars, each equipped with an iron armature. The collars are slid through a free end of selectors and cooperate with a transverse lifting beam as well as with a corresponding set of permanent magnets equipped with a coil in order to nullify the magnetic field generated by the same magnet.

Abstract: A bladed loom reed comprising a support base onto which are placed a series of preassembled packs of blades. Each preassembled pack has blades fixed to an auxiliary support and the bladed loom reed is formed by combining the packs on a support base with or without intermediate spacers between packs.

Abstract: A weft inserter rapier for shuttleless weaving looms in which the weft clamping and retaining system comprises an elastic clamping foot the cross-section of which has a reverse-"U"-shape which is urged, due to the action of a spring-loaded lever, against two metal blades resting on two supports made from an elastomeric material. The metal blades may be provided with an upwards-protruding step at their adjacent ends inside said clamping foot, and the clamping foot can be linked by a semispherical articulated joint to a spring-loaded lever.

Abstract: A demountable pin for rotatably connecting together two elements of small axial dimension, consisting of a bolt with a frusto-conical under-head and an inner hexagonal through bore for tightening it by a key. The pin is locked between two frusto-conical flares of the elements by an end nut with a frusto-conical under-head and a washer with a frusto-conical surface of greater taper than the flares. The under-heads of the nut and the bolt cooperate with the flares.

Abstract: A system for instantaneously detecting breakage of a weft yarn within the shed of a multiphase loom comprising a series of closed-loop induction coils which extend in succession along the entire weaving zone to cooperate with the rotating shuttle weft yarn packages, which are provided with at least one off-centered magnetic element.

Abstract: A gripper transportation system for a shuttleless loom, in which in the guide for the flexible tape, in a position in close proximity to the control sprocket, there is provided a transverse slot through which a solid stick of porous synthetic material impregnated with lubricating grease and/or oil passes and is urged against said tape by a spring of adjustable tension.

Abstract: System of detection of a shed closed to passage of a shuttle in a multi-phase weaving textile loom. This invention is comprised of the following: sensitive control bars made elastically movable along the vertical direction, with a stroke at least equalling the vertical shift necessary for the shuttle roller to disengage from the corresponding thrust roller of the dragging chain of the same shuttle; two adjoining sensitive control blades, both are on the rotary-reed facing divergent side wall of each shuttle; the outward blade is fixed and rigid while the longer inward blade is rotatable around a vertical axis; and upon detection of a persistent entanglement by the control blades, a lever pin, kept in a retracted position by a retainer hook, is freed by movement of the retainer hook such that the lever pin springs outwards to protrude from the shuttle plane, pressing upon a sensitive control bar, generating a stop loom signal.

Abstract: Process for the formation of a tucked selvedge in a terry cloth piece, as obtained with the procedure using an articulated reed having two beating-up positions, using a selvedge-forming device which comprises a movable grasping and severing member as well as a second movable member in the form of a takeup hook or the like, characterized by the additional step of keeping said movable members through the entire time during which the weft threads inserted in the shed and beaten up by the reed up to the blind beat position are, in their turn, beaten by the comb against the fell of the fabric being woven.

Abstract: A heald control system for a multi-phase or travelling wave shedding loom in which each heald is upperly connected elastically, by way of an elastic traction element, to a single support plate which is removably locked to the fixed part of the loom, and the healds of each section are lowerly locked to a single connection block which is connected by a spring catch connector to a flexible element, which is itself connected to the end of a cam-controlled operating lever.

Abstract: Weft inserting and withdrawing grippers for a shuttleless weaving machine are disclosed, wherein the weft inserting gripper has a clamping member composed of pivoting blade-type foot biased by a spring and mounted in such a way that the foot bears against a horizontal gripping surface at an angle nearly equal to the complementary of the angle of friction between the yarn and the gripping surface. The gripping member of the withdrawing gripper has a hook with a wedge which can be axially slid towards and away from the hook to seize and hold the thread, or to clear it. The axial sliding motion of the wedge is controlled by a linkage which is resiliently biased by a spring.

Abstract: Device for changing the reed beating position in looms for terry fabrics, in which the feet of the followers rigid with the reed are respectively connected by connecting rods to corresponding cams keyed on a shaft rotatably supported by the machine sley in proximity to the rotational axle of said sley.A gear is keyed on to said shaft and engages with a toothed sector supported by a member idly mounted on said rotational axle of the sley and is hinged to the lower end thereof by two arms hinged together, their common joint being inserted and guided in an aperture in the form of a circular arc formed in a vertical rocker arm hinged to a fixed part of the loom at the lower end of its aperture, and kept resting on a fixed shoulder of the loom by a spring, in which position said aperture constitutes an arc of a circle having its center on said rotational axle of the sley.

Abstract: Mechanical device disposed behind the heddle frames of a loom for increasing the weft density in cloth weave fabrics, constituted by three parallel rollers situated horizontally at the vertices of a triangle, of which the rear roller separates the two equal sets of warp yarns while the other two front rollers are located very close together and act as an outlet guide for said two equal sets of warp yarns. The three rollers are rigid at their ends with two lateral support plates which are made to reciprocate, by means of connecting rods connected eccentrically to the loom drive shaft, about a horizontal rotational axis which lies in the center plane of the shed formed by said two sets of warp yarns, and passes in proximity to the two front thread guide rollers and at an equal distance therefrom. The three rollers are connected rigidly together by intermediate support plates.

Abstract: The invention relates to apparatus for charging weft thread carriers in wave-type shedding looms. The apparatus comprises a thread guide including a rod having an opening made in one end thereof for the passage of a thread, the other end being pivotally connected with a drive and said rod is mounted in a support disposed intermediate the ends of the rod and arranged so that during a charging operation the ends of the rod are driven through circular motions. The apparatus reduces the thread charging time and also reduces the thread breakage rate, owing to less mechanical action upon the thread.