Abstract: Methods to increase structural performance, strength, and durability of textile-reinforced composite materials are provided. The textile reinforcement may be knitted, for example, in a flat bed weft knitting machine. The method may include pre-stressing a textile reinforcement preform by applying tension. A polymeric precursor may be introduced to the pre-stressed textile reinforcement preform. The polymeric precursor may then be cured or consolidated, followed by releasing of the applied tension to form the composite article comprising polymer and the pre-stressed textile reinforcement. In other aspects, a composite article is provided that has a pre-stressed textile reinforcement structure and a cured polymer. The textile reinforcement may be a knitted, lightweight, seamless, unitary structure.

Abstract: A clip has a frame and a flapper. Two dry bearings are inserted into a hole formed in the flapper. Then an attaching shaft is inserted from one of the holes in the frame to the other through the dry bearings, so as to swingably attaching the flapper to the frame. DAIDAYNE DDK 01 of DAIDO METAL Corp. is used as the dry bearing. A first and a second clip covers are provided to cover the clips. Fresh air feeding pipes are connected to the first and second clip covers. Fresh air is fed from the fresh air feeding pipes toward the clips through air outlets provided in the first and second clip covers.

Abstract: A magnetic tenter lever actuating device includes a coupling rail, preferably designed in the form of a pole shoe rail (21), by means of which the end of a tenter lever (3) can be pivoted deliberately from its open into its closed position and vice versa by means of a coupling region (29) formed at the end.

Abstract: A method and apparatus is disclosed for ejecting a loose film edge from a film stretching clip by directing a jet of fluid such as air through a channel in the clip and between adjacent clips at or before release of a film from the clip and also after release of the film.

Abstract: A process for longitudinally stretching a polymeric film having thickened longitudinal edges while the film is constrained in the lateral dimension by a plurality of successive pairs of grippers, the improvement comprising first guiding the film with a first group of gripper pairs having a predetermined clearance therebetween; and then gripping the film with a second group of gripper pairs with a predetermined amount of force. An apparatus for use in the process is also disclosed.

Abstract: The present invention pertains to a feed mechanism for a sewing machine for displacement-free, near-edge connection of two flexible layers of fabric in the direction of sewing. The device, which is to be used as an attachment, consists essentially of a driven, endless feeding arrangement guided in the horizontal direction and a plurality of receiving elements which are designed as clamps. The receiving elements include clamp lower parts arranged at a vertically spaced location from the fabric support surface and clamp upper parts that can be actuated like pushbuttons, as well as a pressing element acting on the clamp upper parts.With their edges that are to be connected, the fabric layers are fed into a flat feeding section and fixed and carried by a first clamp and continually fixed by consecutive clamps in the same position in the device, thus carried along the stitch formation site, and continuously released in the sewn state at a discharge point.

Abstract: A tensioning machine for the continuous treatment of a length of textile material comprises a pair of moving conveyor devices having parallel runs provided with a plurality of grippers. A mechanism for closing the grippers is provided at the inlet end of the conveyor runs and a mechanism for opening the grippers is provided at the outlet end of the conveyor runs. Each of the mechanisms includes a moving actuating device which is driven synchronously with the conveyors and moves in the same direction and at the same speed as the grippers. The tensioning machine is particularly suitable for comparatively high conveying speeds.

Abstract: This invention provides a drawing machine for pinching and stretching a film-like material of the type having rails installed extending from an inlet section to the outlet section and returning in the opposite direction from the outlet section back to the inlet section of the drawing machine. There is a clip propelling unit moving on the rails for pinching and stretching the film-like material, and elements for generating mutually repelling magnetic fields between the rails and clips, whereby the clips are movable in the non-contact state while floating from the rail guide surfaces. Thus, no foreign substances are generated, cleanliness of products is enhanced, no noise is generated, the work environment is improved, energy is saved, and highspeed operation is attained.

Abstract: A guide track for a tentering chain carrying tentering clamps supports the clamps by a number of rollers to form a tentering frame, especially for a film stretching machine. The guide track is an endless track with U-turns in which a single semicircle type of U-turn has been replaced by a U-turn including two partial curved sections each having a smaller radius of curvature and the two curved sections are interconnected by a straight intermediate section. The reversing or looping curved section at the beginning of the reverse run is so constructed that at this location a drive sprocket wheel can mesh with the tentering chain. Thus, the drive sprocket which was a source of contamination for the web is located remote from the web to thereby substantially reduce any possibilities of contaminating the web.

Abstract: This invention relates to gate type tentering clip with pivotally mounted jaw in which the jaw is provided with a new and novel pivoting movement and the method for making the same.

Abstract: This invention relates to an apparatus for cleaning the clamping surfaces of tenter hook or clip tables and small flaps of tenter hooks or clips during the operation of a tenter hook or clip chain, which comprises a carrier member secured to a tenter hook or clip chain/guide path, an axle vertically positioned with respect to said path, a brush mounting unit supported by said axle and having upwardly and downwardly directed rows of brushes, said brush mounting unit being pivotal on said axle and flexibly connected with the carrier member by a resilient member and, in a position of rest thereof, being positioned so as to be pivoted away from the tenter hook or clip, said brush mounting unit, in the operating position thereof, being pivoted against the tenter hooks or clips in the open position thereof, and whereby the upper row of brushes scrapes and brushes clamping surfaces of the small flaps, and the lower row of brushes scrapes and brushes clamping surfaces of the tenter hook or clip tables.

Abstract: This invention relates to a gate type tentering clip with pivotally mounted jaw in which the jaw is provided with a new and novel pivoting movement.

Abstract: A device for opening tenter frame clips mounted on an endless chain carried by a sprocket wheel, including:A clip opening wheel rotatable on a common axis with the sprocket wheel, such clip opening wheel having an elastomeric peripheral rim;The clips having means including a clamping surface and a pivotable clamping arm for clamping a web of material therebetween, such clamping arm being connected to a clip opening arm for pivoting the clamping arm into its open position; andThe clip opening arm being adapted to contact the elastomeric peripheral rim of the clip opening wheel as the clips are moved by the chain whereby to open the clips.The elastomeric rim is of a material, such as polyurethane rubber having a hardness of 95 Shore A, which reduces impact force as the opening arm is moved into contact with the rim, during the opening of the clip.The rim may be fixedly mounted on the periphery of the wheel.

Abstract: An apparatus for longitudinally stretching a web comprising a pair of spaced apart rotatable members. Associated with each member are a plurality of angularly spaced primary clamps, each radially movable outward, during member rotation, from a primary web engaging position, in which the primary clamps initially engage the edges of the web being transported between the members, for longitudinally stretching the clamped web. Further associated with each member is a plurality of angularly spaced secondary clamps, each angularly interposed between primary clamps and radially movable outward during member rotation from a secondary web engaging position, which is spaced radially outward from the primary web engaging position. The secondary clamps engage the intermediate edges of the web extending between primary clamps, thereby minimizing edge scalloping of the web during continued stretching thereof in unison with engaged primary clamps.

Abstract: A textile processing system in which a textile material to be treated is led and conveyed through a predetermined path for processing by the provision of a material guidance device on both side-walls of the processing system. The system provides open-width processing, low liquor-ratio processing and continuous processing, and contributes to a solution of the problems in regard to industrial waste-water control.