Abstract: A loom is provided with a closed path for the weft yarn from a yarn package to a picking nozzle. A first yarn guiding passage extends from a yarn clamp to a weft yarn storage device while a second yarn guiding passage extends from the storage device to the picking nozzle. Sensors are disposed along the path of the yarn in order to sense the presence or absence of a thread for searching/rethreading purposes. The second yarn guiding passage is articulated to the storage device and the picking nozzle in order to follow movements of the picking nozzles relative to a reed.

Abstract: A thread brake for braking a weft thread in a weaving machine includes a rigid stop and an elastically deformable blade which has a free end supported to press resiliently against the rigid stop. Thread guides are provided to guide weft threads between the rigid stop and the elastically deformable blade. The thread brake is activated when the deformable blade elastically presses against the rigid stop. When contacted by a switching device, however, the elastically deformable blade is pushed against its resilient force and removed from the rigid stop, at least in the region of the switching device, deactivating the thread brake.

Abstract: A lever-type yarn guide device for textile machines according to the present invention comprises at least one yarn guide lever operated by a linear motor and further comprises sensor means arranged to sense tghe positions assumed by the lever during its movement.The linear motor is defined by a coil immersed in a magnetic field generated by permanent magnets.

Abstract: In a weaving machine, one of the guiding elements used to normally guide a weft thread between a thread preparation mechanism and the shed of the weaving machine is made moveable. The moveable guiding element may, for example, be an auxiliary weft insertion nozzle and can be used in place of supplemental threading and guiding mechanisms for such as purposes as retrieving a broken weft thread for automatic rethreading or extracting a defective weft thread from the shed.

Abstract: A mechanism for supplying weft thread to the shed of a weaving machine includes at least three different weft supply mechanisms, at least one of which is arranged to operate with at least two different weft thread sources for the purpose of acting as a reserve thread supply for either of the first two weft thread supply mechanisms.

Abstract: A mechanism for presenting weft threads on rapier weaving machines includes a cam mechanism, cam follower devices, armatures connected to the cam follower devices, and thread presentation arms. The cam mechanism and cam follower devices impart reciprocating movements to the armatures such that, alternately, for each successive weaving cycle, the armature connected to one of the cam follower devices cause the movement of one of the thread presentation arms into a presented position, while the armatures connected to the other cam follower device move back to a rest position a thread presentation arm which has just been presented.

Abstract: A method for repairing a weft thread on a weaving machine, in particular for repairing thread breaks between a yarn supply package and an accumulator, includes the step of providing at least two yarn supply packages, a second package automatically replacing the one in use when the one in use becomes empty. Additional steps include using a thread clip to hold a thread end of the second supply package, monitoring the weft thread for breaks between the supply package in use and the accumulator, and when a thread break is detected, gripping the thread end of the second supply package and joining it to the broken weft section which is connected to the accumulator. An apparatus is provided which includes means for carrying out each of the above-described steps.

Abstract: The weft change motion employs a connecting link between a reciprocating mixer lever and a pivotally mounted mixer segment. During normal alternating weft changing, the link moves from one end position through a neutral position and, under the inertia forces moves towards a second end position. The oscillating movement of the link permits the change motion to alternately feed weft yarns. In order to permit picking of the same weft yarn, a locking device is provided to prevent the oscillating link from moving past the neutral position. The locking device also serves to return the link to the same end position so that the same weft yarn can be picked. Various forms of locking devices can be used including an electromagnet, a movably mounted slide block with an appropriately shaped slot and a slide block employing a rotating disk having an appropriately shaped opening to receive a slide pin.

Abstract: An apparatus for the selective feeding of one of a plurality of weft threads (1) to a gripper projectile, which moves along a projectile path (2), includes a plurality of displaceable feeders (3) each having a feeder clamp (7) for retaining a respective weft thread (1) in position for pick up, a knife (4) for cutting off the weft thread (1) after it has been drawn into the weaving shed by the gripper projectile, and a clamp for picking up the weft thread (1) from a feeder and drawing the weft thread (1) transversely across the projectile path (2) for engagement by the gripper projectile. The clamp is mounted on a rotatable ring (6) which is disposed perpendicular to the projectile path (2) which extends through the ring.

Abstract: In a multicolor air jet loom, a weft color which because of its long weft yarn repeat does not require picking for a considerable period of time and whose free end is damaged by the retaining air flow in the picking nozzle, is picked with an excess length equal to the damaged yarn part in the nozzle. The damaged portion of yarn is therefore not woven in and the resulting cloth has a defect-free edge zone.

Abstract: A filling thread feeding device (2) comprises a thread guide (4) for placing at least one filling thread (S.sub.1) into the entrainment region of a gripper (6) which can be extended into and retracted out of a shed (8). A pair of scissors (22) open against a weaving reed (14) is incorporated at the insertion side externally of the fabric edge (20) in the region of a looping edge (16). The scissors serve for cutting off a previously inserted filling thread (S.sub.1, S.sub.2, S.sub.3, S.sub.4) during renewed insertion into the shed (8). The scissors (22) are designed and arranged in order to improve the operational security and achieve a simpler construction of the gripper loom. The scissors are, on the one hand, closed during the looping motion of the weaving reed and, on the other hand, an inserted filling thread (S.sub.1) can be conducted above and past the upper scissor blade (24) into a catching hook (32) lying in front (FIG. 2 ).

Abstract: The yarn selector comprises a number of yarn regulators each adapted to be selectively adjusted by way of a driving member between a standby position and a transfer position in dependence upon an actuator in which transfer position, a weft yarn is presented to a picking element for a subsequent pick. The driving members are selectively engageable with and disengageable from a driver oscillated at the cadence of the picking fequency. Each driving member is adapted to be locked, with the actuator in an active state by way of a ever-arm in an operative position corresponding to the transfer position of the yarn regulator, and to be disengaged from the lever arm with the actuator in a passive state. The particular yarn regulator concerned remains, if the same weft yarn is required for the next pick, in the transfer position after yarn transfer and is returned to the standby position only before a weft yarn change.

Abstract: Apparatus for clamping, holding and presenting weft threads in a weaving loom is disclosed having: a movable clamp for each weft thread which keeps the corresponding weft threads clamped at their thread ends; thread guiding devices guiding of the weft threads from a supply to the corresponding clamp; and a driving and control mechanism for bringing a clamp successively into three positions for inserting the selected weft thread. The first position of the clamp is a storage position; the second position is located such that the weft thread between the clamp and the thread guiding devices is in the path of a gripper; and in the third position the clamp is located on the weft side near the cloth edge adjacent to the fell. Hooks fastened to the reed bring the insert weft thread back into the clamp during the beating movement of the reed. The hooks also act as a guiding element during the presentation of the weft thread to the gripper.

Abstract: In construction of an insertion controller for a fluid jet loom in which a driver circuit controls the sequence of weft insertion following a regular sequential weft insertion pattern given by an automatic weft selector, a free selective weft selection by a manual weft selector is introduced for free and easy adjustment of weft insertion with provisional reservation of the regular sequential weft selection pattern.

Abstract: Weft threads are presented to a gripper in shuttleless looms by needles, each guided by at least one straight guide held askew in a needle guide carrier (9). These straight needle guides due to their askew arrangement make sure that all needles together are located in and displaceable in a fan type plane twisted in space. In the working position for presenting a weft thread each needle eye is located on a short line (7) extending approximately in parallel to a gripper path. Thus, all weft threads in their presenting position are close to each other in a narrow presenting zone within the reach of the gripper path for a sure gripping at the beginning of the forward gripper motion. At its beginning the gripper speed is still slow so that the weft threads are gripped gently. The straight needle guides held askew in the at least one guide carrier (9) form a row of guides which is slanted by a given angle relative to the gripper path to form the fan type plane twisted in space.

Abstract: A driving and control mechanism for clamping, presenting and holding weft threads on gripper weaving looms is disclosed, whereby at least one thread presentation element (1) can be moved to various positions. The mechanism is composed of at least two levers (5, 6) which are attached in a common manner with a coupling connecting the levers (5, 6) to a thread presentation element (1), a cam transmission (8, 9) for moving the levers (5, 6) locking device (10) which can actuate the lever arms (17, 18) located opposite to the lever arms (12, 13) attached to the coupling (7); and a control system (11) for actuating the locking device (10).

Abstract: In a jet loom in which weft yarns are stored in weft yarn storing units according to a weaving command, and are jetted in the weft insertion cycles thereof, a device for controlling the storing unit comprises: rotation detecting means for detecting the rotational condition of the loom spindle, to output a spindle rotation signal; a rotation control circuit which, according to a weft yarn jetting order, calculates the number of standby cycles between weft insertion cycles, and calculates the speeds of rotation of the storing units to store weft yarns in advance according to the numbers of standby cycle, to output rotation command signals; a drive circuit for receiving the spindle rotation signal and the rotation command signal, to output drives signal to determine the speeds of rotation of the storing units; and drive means provided for the storing unit, each receiving the drive signal to drive the storing unit at a speed of rotation corresponding to the drive signal thus received, a weft yarn as long as a pre

Abstract: The invention relates to a weft change system for a weaving machine, the known complicated switching and release mechanism for the movement of a selection quadrant with weft thread holding devices being simplified by the tension-loadable or compression-loadable springs provided in the known mechanism being replaced by compressed air cylinders, in particular double-acting compressed air cylinders, which can be actuated by a computer-controlled programming device and whereby the complete complicated drive mechanism of the known systems can be dispensed with.

Abstract: A weft-thread mixer device having: general control means; a rocker connected to each distribution finger; a slide and a pusher for putting the corresponding rocker positively into the active position; a slide and a pusher for putting the same rocker positively into the inactive position; thrust rods for connecting an axle of the general control means selectively to the corresponding slides for putting into the active position or for putting into the inactive position, according to one of the two possible positions of the thrust rods; and individual electromagnets controlling the position of each of the thrust rods. The invention can be used on weaving machines where it is necessary to mix the weft threads.

Abstract: The invention relates to a device for the preparation and insertion of at least one type of weft yarn into the shed of a weaving machine. The said device comprises a yarn metering-delivering member feeding a storage chamber used for temporarily storing a length of weft yarn before its insertion into the shed. The introduction of the weft yarn into the storage chamber and its extraction to be thrown by means of rotating rollers are effected via a single guiding channel which comprises a zone situated between the throwing rollers and close to the gripping line, said zone overlapping laterally with respect to the rollers and comprising a continuous longitudinal slot.

Abstract: The ribbon loom comprises a weft thread insertion needle arranged at one side of the warp threads for inserting at least one loop or bight of a weft thread into the weaving or loom shed formed by the warp threads. The weft thread insertion needle has a longitudinal slit throughout almost its entire length. The weft thread insertion needle is also provided with a hook which, exterior to the longitudinal slit, is located at least approximately in the plane of motion of the weft thread insertion needle and is oriented toward the thread guide for the weft threads. The tip or point of the hook is arranged in the proximity of the free end of the weft thread insertion needle and points toward such free end. This results in an especially slender design of weft thread insertion needle and a reliable engagement of the weft thread or threads on the hook solely by means of the thread guide without any supplementary or auxiliary device.

Abstract: The invention relates to a shuttleless weaving machine with a reciprocating filling yarn inserting gripping member or rapier and a reciprocating pulling out gripping member or rapier forming a gripper device (1). In order to shorten the waste in filling yarn and to present a filling yarn (S1) selected by a yarn feed system in a specific position, the feed system forms a fanning-out arrangement in such a manner that each of the yarn guides (3), when in its operational position (3'), always assumes the same position. A holding device (8) for the cut-off end of the selected filling yarn (S1) is made to sufficiently yield the held yarn end, whereby the yarn end held by the holding device (8) can be retracted a distance by a controlled yarn retraction system (4, 12). The yarn retraction system (4, 12) is located between the path of the gripper device (1) and the yarn guides (3) of the feed system.

Abstract: In a weft presenting device for weaving looms with continuous weft feed, the levers controlling the presenting needles are subjected, on one side, to the constant action of return springs towards the inoperative position of said needles and, on the other side, to the cyclic action of cam-controlled control rods towards the operative position of said needles, the levers being kept in this position by electromagnets energized by the selection devices forming the pattern of the fabric being woven, up to operating said needles.

Abstract: The weft yarn tensioning device is employed in a weft changing operation for a weaving machine. The tensioning device has a rod which oscillates at the cadence of the weaving machine transversely of the weft yarn group. The rod deflects the yarns to retaining elements which hold the deflected yarns during upward movement of the rod. A control device is provided for the retaining elements whereby the weft yarn which is to be picked can be released during the upward movement of the rod. The retaining elements can be electromagnetically operated or mechanically operated.

Abstract: A distributing unit synchronized with the shed-forming operation of a jet loom is positively coupled with a rocker arm carrying two insertion nozzles which are respectively aligned with the shed during alternate operating cycles, this unit temporarliy admitting high-pressure air to the currently aligned nozzle and to an associated thread clamp for the release of a weft yarn engaged thereby. The distributing unit comprises two interconnected outer disks bracketing an inner disk on a fixed axle on which the outer disks are held substantially immovable by a friction brake; the inner disk is limitedly rotatable by a cam-operated lever swingable about that axle and, in each of two working positions, connects two inlets for high-pressure air on one outer disk to respective outlets on the other outer disk leading to the currently aligned nozzle and to the associated thread clamp.

Abstract: A weft thread-selection apparatus for a weaving machine or loom comprises a carrier or support element which oscillates or pivots in cycle with the weft thread-insertion frequency. The oscillatable support element carries at its free end a number of electromagnetic devices, for instance electromagnets corresponding to the number of thread infeed rods and is rotatably supported at its other end for pivotal movement about a shaft. This shaft simultaneously constitutes the pivot point for oscillatable or pivotal arm members, each of which is retained under the action of spring means in its preparatory position. Each of the oscillatable or pivotal arm members is hingedly connected at its free end with one of the thread infeed rods and each oscillatable arm member carries a magnet armature intended to cooperate in a coupling fashion with one of the electromagnets. The row of electromagnets extends below the oscillatable or pivotal arm members.

Abstract: The invention relates to a weaving loom which is provided with a selection device allowing the programmed selection of that weft thread among a plurality of threads which has to be inserted into the weaving shed by means of an insertion device. The selection device comprises a program control device and a positioning device controlled by such program control device, which positioning device moves the weft thread carrier so that only the selected weft thread is brought to an active position ready to be inserted into the weaving shed. The selection device comprises a microcomputer provided with a microprocessor, a read-only memory, a pattern computer and a keyboard intended for programming and operating. The positioning device is provided with electromagnets controlled by program control signals of the program control device, which electromagnets control the positioning of the weft thread carriers so as to move the weft threads from the passive positions to the active positions and vice-versa.

Abstract: An apparatus for stopping and resetting a loom. The technical problem which lies at the foundation of the present invention is to provide an apparatus for stopping and resetting a loom to a certain position before a weft stroke which has given an indication of breakage. This technical problem is solved according to the present invention in that a weft fork which senses the weft, and, in the event of a predetermined breakage type in the movement of the weft during a sensing period emits a signal for stopping the loom, is arranged to prevent gripping of a new weft after the generation of a breakage signal, whereby the rapier or rapiers execute one or more strokes without a weft.

Abstract: The multiple pick system uses a drive for each control element. Each drive includes a roller lever which is pivotally mounted and driven by a cam mounted on the continuously rotating shaft of the machine. A locking member is movable into the path of the roller lever so as to prevent the roller on the lever from contacting the cam. The locking member serves to take out of operation the control elements for the weft yarn type which is not to be inserted while allowing the remaining control elements to be driven. The multiple pick system is especially suitable for high speeds.

Abstract: A yarn brake for a textile machine. The yarn brake comprises a stationary clamping plate and a movable clamping plate. The plates are forced together by first and second biasing means to provide full braking pressure on a yarn passing between the plates. De-activating means operate to selectively nullify the effect of the second biasing means to provide partial braking pressure on the yarn, or to nullify the effects of both biasing means so that there is no braking pressure on the yarn. The invention also includes a weft yarn braking system for a multi-weft loom utilizing a yarn brake of the present invention for each weft yarn. Control means, operating in timed relation to the loom, operate the brakes in a programmed sequence. The yarns are fully braked when not being inserted into the loom.

Abstract: Device for selecting the color of weft threads in looms, characterized in that the mechanism controlling the weaving programme transmits a mechanical order to a so called color selector which converts the said order in a first electric signal which is sent to a synchronization device and is momentarily stored therein, whereas a second signal is produced by a switching disc and a contactless switch as a function of the rotation of the drive shaft of the loom, whereby the said first signal is sent by the said synchronization device to a so called color giver as soon as the said second signal has reached the said synchronization device.

Abstract: A device for presenting the weft in weaving looms comprising a plurality of oscillating presenting rods having their free end in the form of an eyelet for the weft thread, a corresponding plurality of control levers for the rods, magnet means for causing the oscillation of the control levers under the control of a weft selection device, and a transversal bar for operating the levers being adapted to engage an appropriate seat of those of the levers having been selected by the selection device through the magnet means - the transversal operating bar has a flattened section with mixed-line contour, adapted to freely insert itself into the seat of the control levers of the device, the seat having a corresponding mixed-line contour section, and to respectively cooperate with the seat (like a pin in a hole), depending on the reciprocal position between the transversal bar and the seats of the levers; and the bar is fixed to an end of at least one guide lever which controls the position thereof during its movements

Abstract: A shuttleless loom having a multiple weft supply and weft selection mechanism including a plurality of selector arms is provided with a weft holding device which holds all wefts adjacent one edge of the warps. Means are provided to move a selected weft from the fell of the fabric to the shed position where it may be engaged by a hook and pulled through the shed.

Abstract: An improved electromechanical filling yarn indicator for use in a pattern-controlled outside filling yarn supply weaving loom to translate motion of fill yarn control cords of a jacquard harness or other pattern control mechanism into electrical signals for transmission to activating solenoids of fill yarn control box selectors which present selected fill yarns from outside filling yarn supply packages to the fill yarn carrier for insertion into the warp shed of the loom. The fill yarn indicator comprises a plurality of slidably movable bars, each having an electrical contact connected to a power supply and engageable with one of a pair of electrical contacts spaced along the path of sliding movement of the bars. Each contact of the pairs of contact is connected to a respective actuating solenoid of fill yarn control box devices located on either side of the loom.

Abstract: An apparatus for selecting inserting weft yarns each into a weaving shed of warp yarns in a shuttleless weaving loom, in which a fluid distributor valve unit, a weft feeding and length-measuring mechanism and a weft retaining unit are operated by levers selectively driven for rocking motion depending upon the angular positions of cams mounted in two groups on separate cam shafts which are rotatable independently of each other and which are driven to turn about the respective center axes of the cam shafts in accordance with a predetermined weaving schedule stored in, for example, a dobby mechanism.

Abstract: Weft feeding mechanism of a shuttleless loom comprises a feed roller driven from a loom shaft, a pressure roller engageable with the feed roller, another roller engageable with the feed roller in accordance with separation of the pressure roller from the feed roller and in gearing connection with the pressure roller, and control means for movement of the pressure roller into and out of engagement with the feed roller in response to a signal indicating insertion of a selected weft, whereby the pressure roller is constantly driven from the feed roller irrespectively of its position engaging with or separating from the feed roller.

Abstract: A weft presenting mechanism for use with looms having a stationary weft supply in which individual weft yarns are selectively moved into position to be picked up by the weft inserting mechanism and inserted into a warp shed. The device includes a plurality of weft presenting fingers and a drive means, all pivoted about a common axis.

Abstract: In a shuttleless loom for weaving repeating patterned fabrics including rapier mechanisms for inserting picks of selected ones of a plurality of filling yarns, a filling yarn pattern control mechanism for selectively presenting desired filling yarns at predetermined intervals to the rapier mechanism, cutter mechanisms for cutting the selected filling yarn when received by the rapier mechanism, and selvage trimming mechanisms for trimming the loose filling yarns extending outwardly from the woven fabric; the improvement is provided of mechanisms for positioning and holding the loose cut and uncut ends of filling yarns for trimming by the selvage trimming mechanisms and for continuing to hold under tension the cut ends of those filling yarns for which a repeat pick has not yet been called for in the repeating pattern of the fabric after cutting thereof by the selvage trimming mechanisms and, thereby, eliminating the prior necessity and cost of weaving false selvages which performed such positioning and holding

Abstract: A compact simplified weft selector mechanism is formed in an assembly where a plurality of weft selector arms are pivoted about a fixed shaft with the operating ends of the arms engaging a weft thread whereby selection of a particular arm operates to select a particular weft thread for engagement by a loom needle. A plurality of arms or levers are individually mounted by swivel bearings to be guided by oblique slots for movement of the operating ends of the levers through a common point.

Abstract: The present invention relates to means for controlling and for cutting the weft threads in looms with weft inserters. The combination of the means for controlling and for cutting the weft threads comprises a thread cutter carried by the loom framing, as well as a threader and a lowering hook carried by the sley. The thread cutter is constituted by a vertically-movable knife which co-operates with a component provided towards the rear with a weft thread retaining hook. The knife has, towards the rear, an extension for guiding the weft thread into the shed. The threader is formed by a horizontal ramp ended at its rear by an upwardly and forwardly open loop, located above the path of the entry needle, while the lowering hook may adopt, selectively, a high position above the weft thread portion connecting the threader loop to the cloth and a low position in which it presses down and holds one point of said weft thread portion below the path of the nippers of the entry needle.

Abstract: This invention relates to an improvement in the process for beating up and cutting off fillings inserted into the shed in shuttless weaving equipment provided with weft mixers, in particular in weaving machinery with filling insertion by means of grippers advancing into and retracting from the shed, the inserted filling being cut off on the insertion side outside the selvage, the improvement comprising that simultaneously with or following the beating up of the last inserted filling: (a) cutting off the previously inserted filling and seizing the free end, connected to a supply spool, by a holding system, (b) guiding the last inserted filling over the back of a scissor blade facing the shed to a catching hook mounted outside the scissors, (c) simultaneously with the back-motion of the shed, displacing the scissors transversely to the direction of the filling in an orthogonal plane and reopening them, the last inserted filling passing from the back of the scissor blade in front of the other scissor blade into

Abstract: The relative movements of the sheath and core wire of a bowden cable are used to generate a multiplicity of modes of color selection of a weft-thread selector for a shuttleless loom. The single cable is the sole connection between the drawbar assembly and the dobby.

Abstract: A loom operating without a shuttle is provided with a weft selection mechanism and a weft retention mechanism with the former operating to select a weft thread and pass it through the sheds of the loom while the latter mechanism retains and holds the weft thread during loom operation. The weft selection mechanism includes a plurality of pivotable weft selector arms having a weft thread engaged at a first end thereof and an actuating mechanism oprating to drive a second end of the selector arms. A plurality of selector arms is provided with the first end of each of the arms passing through a common point during pivotal movement of the arms. The arms are pivotally mounted intermediate their first and second ends and a selector device is provided to selectively engage the second end of a particular arm with the actuating mechanism driving the arm through pivotal motion, thereby to effect selection of a weft thread.

Abstract: An apparatus for selectively inserting weft yarns of different natures, particularly colors, into the shed of a weaving loom. The apparatus has at least two weft shooting members each movable into a position ready to shoot the pick of weft yarn into the shed. Weft selector cam means having various conditions each operative to hold each weft shooting member in the above mentioned position thereof, are provided. Cam actuating means drive the cam means between the above mentioned conditions thereof, weft selector signal supply means store signals representative of a predetermined weft inserting schedule, and locking means are responsive to the signals for locking the cam actuating means in a condition inoperative to drive the cam means in response to one of the signals and releasing the cam actuating means from such a condition in response to another signal.

Abstract: A weft presenting device for looms with selective weft feed, of the type wherein presenting rods are operated one at a time by respective control magnets, so as to be ejected from the device itself for presenting their own weft thread, provides for each single rod to be positively controlled, during both its advancing and its return motion, by a mechanism controlled by a cam, wherein a pawl interlocked with the control magnet locks, when energized, the end of a lever of said mechanism, to impose on said lever the movements for operating the back and forth motions of the rod; while, when de-energized, said pawl frees the end of said lever, allowing the same to perform idle movements.

Abstract: An apparatus for selectively inserting into the shed of a weaving loom a plurality of weft yarns having different natures, particularly colors, comprising cam means including at least one cam which is formed with lobe and bottom portions alternately arranged about the axis of rotation of the cam and which is driven to turn about the axis through a predetermined angle under the control of weft selector signal supply means such as a pattern card arrangement, wherein cam retaining means is provided to hold the cam in one of the angular positions operative to have each of the weft shooting members held in a position ready to insert the pick of weft yarn into the shed, the retaining means being disengaged from the cam when the cam is being rotated from one of the angular positions thereof into another.

Abstract: An apparatus for selectively detaining and releasing a plurality of weft yarns of different natures, typically colors, before a weft yarn is drawn off into the shed of warp yarns in a weaving loom, comprising lever actuated weft pinch-off units each having a condition to retain each of the weft yarns and a condition to release the weft yarn, a weft selector mechanism including lever actuating means for moving each of the levers associated with the pinch-off units and cam means for moving the lever actuating means between positions respectively operable on the levers for the individual pinch-off units, and a weft release control mechanism driven in synchronism with other driven members and units of the loom for driving the lever actuating means alternately between positions in which the lever engaged by the actuating means is operative to hold the associated pinch-off unit in the above-mentioned conditions thereof.

Abstract: Weft-cutting apparatus for a shuttleless loom of the type having a continuous weft supply and in which a selected weft thread coming from a fixed bobbin mounted at a point spaced from the fabric prepared on the loom remains attached to the edge of that fabric during the movement of a picking needle inside the shed and until after it has been beaten into the fabric, is constructed of an upper L-shaped lever and a lower L-shaped lever, fulcrumed at their midpoint on a common pin to provide a gap between them which is located in the path of the weft thread. Each lever supports a transverse cutting blade at one end and, at its other end, a sliding roller which rides on an associated control cam.

Abstract: A weft separator device for shuttleless looms or the pick and pick type in which any one of a plurality of weft yarns from separate sources can, by positioners individual to each weft yarn, be located for insertion into a warp shed. The device includes a pivotally mounted finger member operatively associated with each of the positioners and is effective in providing positive separation between a selected weft yarn and those in their inactive positions in the area intermediate the edge of the woven fabric from which the weft yarns extend to their respective positioners.

Abstract: There is disclosed an intermediate yarn feeding and control device having a storage member adapted to have yarn wound thereabout adjacent one end thereof to form yarn windings which advance toward the other end thereof. Yarn guide means located adjacent the other end of the storage member is adapted to guide the yarn, selectively, into one of two separate paths of yarn travel. A restraining element restrains the yarn withdrawal to a preselected rate when the yarn is guided through one of the paths but is clear of the yarn travel when the yarn is guided through the other of said paths for permitting the yarn to be withdrawn from the storage member at any desired rate. The yarn guide means includes a plurality of outwardly extending resilient fingers whose free ends support an outer ring so that when the withdrawn yarn is guided through the one path which is inwardly of the outer ring, it flexes successive resilient fingers which impart thereto a preselected tension.