Abstract: In a woven slide fastener stringer in which a gap-filling warp thread extends under successive loops of a coiled plastic filament and alternately over and under picks of a foundation weft thread so as to pull portions of the foundation weft thread between the outermost upper binding warp thread and the next upper binding warp thread toward the lower side of the tape substantially halfway between the upper and lower legs of the respective loops, at least one pair of space-retaining warp threads is disposed between the outermost upper binding warp thread and the next upper binding warp thread. The space-retaining warp threads extend alternately over and under the upper and lower legs of the successive filament loops so as to clamp the individual loops, thus keeping the latter in proper upright posture and free from staggering pitch.
Abstract: A loom frame comprises side wall assemblies (9) on the narrow sides of the loom (1) and cross-members (13-16) interconnecting the side wall assemblies (9) and extending parallel to the long sides of the loom. The side walls (9) of the frame (8) are each in at least two parts (10, 11) secured to one another by at least one connecting bar (12). The same side wall parts (10, 11), but different connecting bars (12), flanges (121, 122, 125) and rests (123, 124) can be used to construct different loom frames. Different frames can therefore be produced at reasonable manufacturing costs from just a few variable parts.
Abstract: An insole for use as a replacement insole or for permanent installation in a shoe or other item of footwear is of sandwiched construction with a flexible, moldable nonsetting material inside, so that the upper surface of the insole molds and conforms to the bottom of the foot of the wearer. The insole is glued together, with an overlap of the top innersole piece folded under and adhered to the bottom of an upper subsole or shoe board immediately below. In specific areas at the tips of the toes and the heel, there is stitching through the thickness of the insole, spaced inwardly a short distance from the edge of the insole, to prevent excessive flow of the moldable material and consequent bottoming out of the foot in these areas.
Abstract: The weft-preparation device for superposed shed type weaving machines comprises a weft measuring drums, a weft-severing device with a plurality of shears and a weft insertion device. Each shear comprises a blowing tube which conveys a weft yarn. The insertion or picking device has a guide duct for the weft which is open on one side and which is closable by a closure member. The severing device places before the guide duct entry whichever shear is guiding a weft for severance. The duct is then closed. When a weft has been fully picked in a picking comb, it is severed. The weft then remaining is conveyed by the blowing tube by way of the picking device into the next picking comb which has meanwhile entered. The severing device is then lowered one step at a time and the subsequent wefts are severed and picked.
Abstract: The apparatus comprises an injector nozzle, for instance on the loom take-up roll. The injector nozzle has a plurality of air supply passages or channels opening into an extraction conduit surrounding the selvedge to be removed or extracted. The selvedge is pulled through the injector nozzle by the air coming out of the air supply passages and conducted through a tube or hose into a waste container. The injector nozzle for extracting cut-off fabric parts is especially suited for sensitive materials, e.g. glass fiber yarns. When for instance the selvedge contains severed weft thread ends of glass fiber material, the latter are particularly well protected against breakage due to the extracting injector nozzle.
Abstract: In the method the auxiliary nozzles are used individually or in groups to form a pressure wave travelling together with the front end of the weft thread through the weaving shed. Individual auxiliary nozzles or groups of auxiliary nozzles are maintained in a cut-off position for a certain amount of time after the front end of the weft thread has passed, however, are again cut-in, particularly prior to the moment of time at which the weft insertion operation ends, so that a trailing travelling wave is formed. Using such method the air consumption can be maintained at low levels. Particularly when individual auxiliary nozzles are cut-in only for short intervals of time in the trailing travelling wave, a particularly low air consumption can be achieved. By employing a trailing travelling wave, a lower air pressure also can be used for generating the pressure wave travelling with the front end of the weft thread.
Abstract: An inner sole with a cushioning layer of polyurethane foam, with compression set less than 10%, laminated to a thinner layer of thermoformable polyethylene foam, which serves primarily as a vehicle for shaping the polyurethane.
September 30, 1982
Date of Patent:
April 30, 1985
Rogers Foam Corporation
Robert A. Jalbert, Anthony P. Galcenski, Jr., Charles C. Urmson
Abstract: A pneumatic weaving machine has an air transport channel for blowing the weft threads, formed by the reed lamellae and open at one side. A plurality of auxiliary blowing nozzles are directed through this open side obliquely inward. The invention provides means whereby the jet direction of the auxiliary nozzles may be influenced such that a larger or smaller component transverse to the weft direction is obtained. Thereby friction forces on the thread may be controlled dependent on the yarn type.
Abstract: In a feed device for the punched paper tape carring the coded fabric design for loom shed formation dobbies, the punched tape roller spindle can be disengaged from one of its end supports and can rotate with the other of said supports to enable the punched tape to be fitted, replaced or extracted, without interrupting the connection between the drive means and punched tape roller.
August 5, 1982
Date of Patent:
November 27, 1984
Fimtessile Fabbrica Italiana Macchinario Tessile SpA
Abstract: A reed A for a loom is disclosed which includes a front row B of dents 30 on the beat-up side of the frame and a back row C of dents 34 staggered in alignment with dents 30. An upper support bar D and lower support bar E support the dents 30, 34 in the reed. Upper support bar D includes mounting bars 42, 44 which are reduced in height compared to a main bar element 40 such that dents 34 have a greater free height in the reed than dents 30 rendering them more flexible. Upper support bar D which is on the free unclamped side of the reed during beat-up is thus rendered lighter than lower support bar E which is on the clamping side to reduce inertial loading on the frame. The front reed dents will offer a strong reed to the beat-up. Since the back reed is required only to separate the adjacent warp ends it is made as flexible as possible by increasing the height.
Abstract: There is provided an electromagnetically controllable coupling means between the drive shaft and a cam element of a textile machine. A latch mounted on the cam element and rotatable with it is biasable by a spring to interact with grooves in said drive shaft. Two rocker arms rotatable about fixed axes are each provided with a strikers and are swingable back and forth between a first position in which said striker holds the latch out of interaction with the grooves and a second position in which the latch is released in order to interact with said grooves. A pair of anchors influenced by program directed electromagnets serve to hold the said rocker arms in the first position. A stopping arrangement prevents further rotation of the cam means when the latch moves from one into the other of the aforementioned rotation positions. Each anchor attached to the appropriate arm is in the first position of the rocker arm presented proximate to the pole face of its appropriate electromagnet.
Abstract: A weft brake for a loom, especially for one of the shuttleless type, comprises a stationary blade and a movable blade cantilevered in overlapping positions on respective posts rising from a supporting plate, the free end of the movable blade being spring-biased toward the stationary blade for clamping a weft thread therebetween but being periodically deflected away therefrom for releasing the weft thread to facilitate its transportation through the shed of the associated warp threads. The weft thread passes between the stationary blade and a leaf spring forming an intermediate blade, inserted between the two other blades of the brake and cantilevered on the same post as the movable blade, so as to be frictionally restrained by the elasticity of that intermediate blade in the unclamping position of the movable blade.
Abstract: Velvet which has been woven in a double layer passes between a table and a rule before the pile threads are cut by a knife in order to separate the two layers. The rule is suspended from a reinforcement bar by means of two anchoring points located at a distance from the ends of the rule, thus reducing the deflection of the rule and achieving enhanced uniformity in the height of velvet pile threads.
May 12, 1983
Date of Patent:
October 23, 1984
Societe Alsacienne de Construction de Materiel Textile
Abstract: In a weaving machine having a warp stop motion feature which includes upper and lower vertically aligned supports for supporting contact bars and guide bars, the lower support being cantilevered to a longitudinal beam, the warp ends extending parallel to the upper supports and through eyelets provided in drop wires resting on the warp ends which are carried by an upper surface of the beam. The beam comprises a hollow body having a wear resistant element mounted along an upper side thereof, the element being replaceable and being of a material harder than the beam itself.
Abstract: The reed dents for the reed of a jet weaving machine have recesses on their forward edges for guiding and beating-up the weft thread, and they are given a bend along their longitudinal extent so as to incline toward the fell of the fabric. The inclined upper half of the reed inclines forwardly and, when the batten is in its rearmost position, the upper reed cap is closer to the fell of the cloth than is the case when reed dents of known configuration are employed. Consequently, the harnesses can be positioned closer to the fell, with the result that the harness stroke is reduced and it becomes feasible to increase the r.p.m. of the weaving machine.
Abstract: Jet looms have feelers for detecting whether a weft yarn has been properly inserted through a warp shed at an end of the warp shed.Air jet looms have photoelectric feelers the sensitivity of which becomes lowered with time due to dust or fly waste attached to the feelers in operation. Water jet looms incorporate electrode feelers with insulation therebetween tending to be deteriorated due to water applied, and hence the sensitivity of such feelers is also reduced with time.An apparatus according to the present invention increases the gain of a variable-gain amplifier for amplifying an output signal from the feeler as the level of the output signal is lowered, so that the amplified signal is maintained at a suitable level.
Abstract: A heddle rod 16, 42, 44 is disclosed constructed of metal outer layer A and dissimilar metal and/or non-metal core B whereby most impact and wear of the heddle rod with the eye 20 of an associated heddle 18 is taken by the side edges 52, 54 of metal bars A while core B of different elasticity reduces transmission of noise. The overall structure has a high bending resistance and structural integrity to withstand the rigorous forces encountered during shedding on a loom. Other arrangements are provided offering other advantageous constructions.
Abstract: In a shuttleless weaving machine with a nozzle for inserting the weft thread. The nozzle is furnished with a mixing tube, and the machine has a weft thread guide channel and a reed carried by a batten, for beating-up a weft thread. A thread clamp or holder is disposed in the mixing tube of the nozzle. This thread clamp or holder clamps the weft thread ahead of the point where the weft thread is cut. Thus, the weft thread is prevented from springing back into the nozzle. Accordingly, damage to the weft thread due to such springing-back is prevented, the weft thread is protected and conserved, the fabric quality is improved, and the area of applicability of jet weaving machines is broadened. In addition it is ensured that the leading end of the weft thread is blown into the weft thread guide channel in a position which is as close as possible to the desired position with respect to the guide channel transverse to the insertion direction.
Abstract: An intermediate support in engagement with heddle carrying rods of a weaving heddle frame includes a body member having end loops at opposite ends for engagement with the rods, at least the body being of vibration absorbing material, and the end loops engaging the rods but without being fixedly secured thereto. The end loops are spaced apart for maintaining a constant spacing of the rods, and the intermediate support is capable of being laterally shifted along the rods to accommodate the positioning of the weaving heddles therealong.
Abstract: The guide channel of the catching mechanism is provided with a recess into which the foremost projectile can be positioned at the upper end. The projectile is thus permitted to be moved into an upright position parallel to the direction of ejection. Further, the ejector is able to strike against the foremost projectile during ejection over a relatively large surface area so as to reduce the stress of the impact forces on the projectile.