Abstract: The weaving machine has a weft picking mechanism which is controlled so as to adjust the picking speed of the weft yarn relative to the operating speed of the weaving machine. The means for controlling the picking mechanism receives an error signal from a comparator connected on the input side to a pick-off for detecting the arrival of a weft yarn at the weft catching station and a second pick-off for detecting the operating speed of the machine. The error signal may also be used to control a fluid type of weaving machine or may be used to control the drive of the weaving machine relative to the picking mechanism.

Abstract: An air distributor construction for auxiliary nozzles of an air jet loom, comprises an air passage which extends along the direction of weft picking and communicates with all the auxiliary nozzles, the air passage being supplied with pressurized air. Additionally, a certain number of sealing members are detachably disposed at certain locations of the air passage to divide the air passage into a certain number of air distribution passages each of which communicates with each group of auxiliary nozzles, thereby constituting an independent air supply system for each group of auxiliary nozzles. Accordingly, the number of auxiliary nozzles corresponding to each air supply system becomes variable.

Abstract: A strand is furnished to a strand consuming unit, e.g. loom, having a periodic demand for a finite length of strand by:(a) continuously advancing the strand from a supply source for winding onto a first surface,(b) continuously advancing the strand from the first surface onto one end of a second surface for rewinding thereof on the second surface,(c) periodically operating the consuming unit to withdraw the strand from an opposite end of such second surface while continuing the advance of the strand both to such first surface and from the first surface toward the first end of the second surface, and(d) halting withdrawal of the strand when a finite length thereof has been withdrawn from the opposite end of the second surface by the consuming unit.

Abstract: A bed extension support structure for a sewing machine is disclosed which not only provides for ready removal and replacement of the bed extension but which also permits adjustment of the alignment and registration of the bed extension with respect to the work supporting bed of the sewing machine.

Abstract: An apparatus for inserting a weft into a shed by jetting fluids in a jet loom comprises a plurality of thin plate-like members arranged in alignment in the direction of weft insertion on a sley, each of the thin plate-like members being provided with an opening in the same position of each of said thin plate-like members to form a guiding channel, and nozzle means for jetting fluids through the guiding channel. Each of the thin plate-like members is provided with at least one cavity which is formed adjacent the circumference of each of the openings of the thin plate-like members on a downstream sidewall, in the direction of weft insertion, of the mutually facing sidewalls thereof. Due to the formation of the aforesaid cavity, the amount of the fluid flow escaping through the space between each two adjacent thin plate-like members outside of the guiding channel without narrowing the width of the space therebetween.

Abstract: A boxing glove with thumb tie down has been provided which incorporates a connecting bridge which holds the thumb in essentially a closed or nested position at all times. The connecting bridge extends from the upper edge of the thumb sheath to the thumb guard location as a controlled thumb feature. The connecting bridge provides limited mobility of the thumb to prevent thumbing and eye injuries. The improved boxing glove maintains the thumb sheath in a tight position to prevent causing injuries such as gouging, yet permits the confined hand to relax at the boxer's discretion.

Abstract: A needle thread control mechanism for sewing machines which permits a machine operator to adjust the stitch tightness includes a thread take-up mechanism arranged wholly outside of the machine frame and a thread controlling mechanism arranged directly between the needle thread take-up mechanism and a thread supply source. A thread controller, adapted to cooperate with the thread take-up mechanism, is also provided.

Abstract: The reed for the weaving machine has a specific weight which decreases in a direction away from the sley. In one embodiment, the dents of the reed are tapered while in other embodiments the dents are provided with perforations or are made of different materials.

Abstract: An outer body has an axially extending through hole with a frusto-conical section thereof. An inner body is coaxially disposed in the outer body hole. The inner body has a frusto-conical end portion which is spacedly received in and spaced from the frusto-conical hole section of the outer body to define therebetween a frusto-conical space which acts as an air jet opening. The inner body has therein an axially extending through hole. A weft guiding body having therein an axially extending through hole for receiving therein a weft yarn is coaxially disposed in the inner body hole. The weft guiding body has an extension which projects from the apex of the frusto-conical end portion of the inner body and terminates at a position between the apex and the exit of outer body hole. The inner body is axially movable relative to the outer body, and the weft guiding body is axially movable relative to the inner body.

Abstract: A low-inertia presser device for sewing machines having a coil spring operatively connected to a pivotably mounted arm that carries the machine's presser foot. The spring is housed within a sleeve having a bifurcated end that straddles the arm. A thrust rod protruding from the sleeve has one end in engagement with the coil spring and the opposite end with that portion of the pivotably mounted arm extending through the bifurcated end of the sleeve. The biasing force of the coil spring is effective in minimizing the inertia of the moving parts and is effective in causing the presser foot to precisely and consistently track the movement of the feed dog above the needle plate, resulting in controlled movement of a workpiece in a straight line along the sewing axis.

Abstract: The longitudinal marginal regions of a synthetic fabric endless belt-type screen for a paper making machine are formed to permit less wear of the marginal regions due to greater elongation as compared to the central region.

Abstract: A stretcher frame for stretching and holding fabric during stitching and/or painting and for permanent display. The stretcher frame includes a first frame member with an outer rectangular U-channel portion and a second frame member having an inner rectangular U-channel portion which fits matingly within the outer U-channel portion of the first frame member so that fabric may be sandwiched between the inner and outer U-channel portions when they are fitted together. Further features are provided to snap-lock the inner U-channel within the outer U-channel and also to provide for removal of the inner U-channel from within the outer U-channel.

Abstract: In a weaving loom, the harness frames are coupled by means of two link-arms to rockers which are actuated by the shedding mechanism. The head of each link-arm is provided with a recess in which is inserted a stub-shaft carried by each harness frame, the stub-shaft shaft being held in position by means of a spring carried by the link-arm head. High-speed looms can thus be equipped with lightweight frames of smaller thickness which can be mounted with greater ease.

Abstract: A weaving reed comprises a plurality of flat reed dents stacked side-by-side in a reed channel or container, each reed dent having opposed end sections terminating in side edges, one of such end sections of each reed dent having an outer edge thereof provided with an identification notch spaced from the side edge at that end section a distance corresponding to the thickness of a given reed dent, such that stacked reed dents of like thickness will have aligned identification notches, and stacked reed dents of unlike thickness will have staggered identification notches relative to the aligned notches. Reed dents of different thicknesses are therefore immediately distinguished and can be easily sorted out.

Abstract: An improved solenoid actuated yarn clamp for controlling the flow of a moving strand of yarn particularly in conjunction with a fluid weft insertion loom. The improved clamp is double acting, being displaced positively between an operative yarn clamping position and an inoperative position releasing the yarn for further movement. The actuation of the clamp in both directions preferably occurs in two stages in which a relatively movable portion of the armature is first attracted into engagement with the energized solenoid, resulting in enhancement of the flux path of the solenoid, causing movement of the remainder of the armature. A preferred electronic circuit for regulating the actuation of the improved clamp is also disclosed which permits the adjustment of the clamping and nonclamping portions of the operative cycle of the clamp.

Abstract: The drum-shaped control device has a jacket which defines an air pressure reservoir and outlets which connect via air feed lines to the nozzles of the weft insertion device. A split rotary slide valve is disposed within the jacket so as to open each of the outlets in sequence to the pressurized air in the reservoir. The valve is driven by a hollow tubular shaft which is connected via pins to the valve. Air is delivered to the reservoir through the hollow shaft from one end of the control device. Operation of the moving parts during operation is compensated by the widening of the split valve due to the pressure in the reservoir.

Abstract: The impulse transmission of the transporting fluid to the weft yarn may be different, also with yarns of the same type, through different causes, particularly when a switching takes place from one yarn packet to a next yarn packet. According to the invention this switching is now detected in that the yarn section constituting the connection between both packets moves past a detector which emits a signal whereby the feed pressure for the blowing nozzle launching the weft threads into the weaving shed is temporarily varied.

Abstract: In a jet-operated weaving machine including a race on which are arranged a reed, a series of weft guides forming a weft guiding channel in a shed and a number of auxiliary nozzles provided adjacently along said series of weft guides for injecting therefrom fluid under pressure into said channel thereby to carry all the way of said channel a weft yarn introduced into the shed initially by a jet stream from main nozzle, an apparatus for mounting weft guiding members wherein said weft guides and auxiliary nozzles are mounted integrally on a plural number of mounting blocks which are arranged in a row fixedly on said race, each of said blocks being formed therein fluid passage communicated with said auxiliary nozzles and also connected to fluid supply tube.

Abstract: The weft insertion nozzle is mounted on an extension of the sley sole, and the nozzle is pivotable about an axis perpendicular to the sley sole. The nozzle is connected to a fixed point of the loom by means of a retractable connecting-rod. Due to the action of this connecting-rod, the nozzle is in a position parallel to the sley sole during insertion of a pick of weft into the shed, but forms an angle with sley sole in the beating-up position of the sley, at which the weft is cut by scissors. A pneumatic jack supported by the sley sole can also cause the weft insertion nozzle to pivot by retracting the connecting-rod, in order to deflect the weft by directing the weft from the nozzle into a suction mouthpiece so as to prevent insertion of a pick into the shed when a fault is detected causing the stoppage of the machine.

Abstract: The two-phase gripper loom or weaving machine comprises two loom units arranged adjacent one another. Each of their heald frames can be actuated by a heald frame positioning device with a phase shift of 180 angular degrees. Each heald frame positioning device is associated with a related one of the loom units. There is arranged between the common main shaft of the machine and the two rotary shafts of the two heald frame positioning devices a clutch drive for selectively individually connecting or coupling one or the other rotary shaft with the main shaft of the machine or with an auxiliary drive. This enables, during standstill of the machine, to bring the open weaving shed of one or the other loom unit into a closed shed position until the gripper loom is restarted, prior to which restarting the closed weaving shed is brought back again into the open shed position.