Patents Examined by Ronald Feldbaum
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Patent number: 4662192Abstract: A flat knitting machine comprises flexible shank needles arranged in the dle channels of the needle bed, and, arranged behind these, jacquard jacks as well as a cam system which is movable over the needle bed and which comprises interengageable needle, jacquard and selection cam units which have fixed and shiftable cam elements. In order to create the possibility of selection for the flexible shank needles with sinkable needle butts, and in which the needle channel cutting is without interruption, i.e. can be produced with constant depth by one cutting pass, the flexible shank needles have an anterior first needle butt always projecting from the needle bed and a posterior second needle butt which sinks into the needle bed under the resilience of its own flexible shank.Type: GrantFiled: July 3, 1986Date of Patent: May 5, 1987Assignee: Universal Maschinenfabrik Dr. Robert Schieber GmbH & Co. KGInventor: Reinhold Schimko
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Patent number: 4660391Abstract: A needle selection device for a flat knitting machine with knitting needles hich are pivotable into different positions comprises pivotable double-armed check levers which are associated with the respective needle channels along the length of the needle bed, the check levers each being pivotable by means of an electromagnet at the respective needle selection positions.Type: GrantFiled: July 3, 1986Date of Patent: April 28, 1987Assignee: Universal Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KGInventor: Reinhold Schimko
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Patent number: 4660392Abstract: A device for controlling the tension of the knitted fabric includes two parallel rows of rollers, which are supported by two plane surfaces mounting two needle beds upon which a carriage is able to move longitudinally and alternately.The rows of rollers are located beneath the needle beds with the rollers of the first row, able to turn in a single direction, being in contact with the corresponding rollers of the second row, thus creating a series of independent pairs of rollers between which the knitted fabric is inserted.Each pair of rollers is moved by a rod, mounted on the second plane surface, featuring a heel upon which moving cams act determining the consequent rotation of the corresponding pair of rollers, while fixed cams, acting upon the heels, return the rods to their initial position.Type: GrantFiled: August 12, 1986Date of Patent: April 28, 1987Assignee: E.M.M. Emiliana Macchine Maglieria S.R.L.Inventor: Benito Stoppazzini
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Patent number: 4658739Abstract: A needle plate member for a staggered needle tufting machine in which the rear free edge of the needle plate is provided with transversely spaced notches therein for receiving the passage of the front needles while supporting the base fabric being stitched by the front needles and a plurality of rearward projecting forked finger members alternating with the notches and projecting rearward of the rear free edge of the needle plate for receiving the passage of the vertically reciprocable rear needles while supporting the portions of the base fabric stitched by the rear needles. The needle plate member is particularly adapted for use with a separate mechanism for laterally shifting the base fabric in a staggered needle tufting machine to produce dense tufted pile fabric and particularly pile fabric having multiple rows of stitching transversely spaced less than the needle gauge.Type: GrantFiled: February 3, 1986Date of Patent: April 21, 1987Assignee: Tuftco CorporationInventor: Charles W. Watkins
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Patent number: 4658604Abstract: Warp knitting of a stretch fabric suitable for outerwear end uses and simulating woven fabric is carried out to produce a coherent ground structure comprising non-elastomeric yarn, covered elastomeric yarns being laid into said ground structure.Type: GrantFiled: August 8, 1986Date of Patent: April 21, 1987Assignee: Courtaulds PlcInventor: David Wilson
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Patent number: 4658603Abstract: In a device for setting the adjustable traverse of a plurality of yarn feeders of a flat knitting machine, the yarn feeder limit stops (19) associated with each yarn feeder slide (15) are preferably formed as signal generators and are arranged to be longitudinally slidable on separate guide tracks of the yarn feeder rails (10-13) so that the yarn feeder slides (15) can overlap the associated yarn feeder limit stops (19). The yarn feeder limit stops (19) effect a switching procedure for the coupling devices (28) located on the cam carriage (14) which effect the movement of the yarn feeder slides (15).Type: GrantFiled: August 11, 1986Date of Patent: April 21, 1987Inventors: Thomas Stoll, Ernst Goller, Guenther Kazmaier, Franz Schmid
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Patent number: 4655152Abstract: A thread clamp for sewing machines comprises a helical spring as a clamping element which is disposed in a bore extending crosswise to the feed direction of the work in a guide piece placed on the stitch plate. To obtain a very short closing path, the helical spring has in the region of the respective thread pull-off path windings whose mutual distance is greater than in the other regions. The helical spring is compressible by a setting drive for the fixed clamping of the threads.Type: GrantFiled: May 1, 1986Date of Patent: April 7, 1987Assignee: Pfaff Industriemaschinen GmbHInventors: Eugen Angele, Ludwig Drechsel
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Patent number: 4653293Abstract: A mechanism for effecting guide bar lapping movement in warp knitting machines comprises a double-acting piston-in-cylinder servo arrangement connected directly to the guide bar. The piston 13 of the arrangement 11 may be connected by a rigid yoke arrangement 15 to a rod 16 slidable in linear bearings 17 and connected to the guide bar 12.Type: GrantFiled: March 11, 1985Date of Patent: March 31, 1987Assignee: Guilford Mills Inc.Inventor: Itzchak Porat
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Patent number: 4653413Abstract: A tufting machine has a needle bar shifter for moving the needle bar transversely of the direction of the movement of the backing fabric, a pattern cam determining the amount and frequency of the shifts. The cam is driven in timed relationship with the reciprocation of the needle bar at a cyclically variable speed. The drive for the cam includes an epicyclic gear arrangement having a constant speed input motion applied to the ring gear and an oscillatory motion applied to the planet gears. The output is taken at the sun gear and applied to the pattern cam. The same drive may also be used for driving the feed rollers to feed the base material at a cyclically variable speed when the needles are above the base material.Type: GrantFiled: April 14, 1986Date of Patent: March 31, 1987Assignee: Spencer Wright Industries, Inc.Inventor: Arthur Bagnall
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Patent number: 4649844Abstract: The invention relates to an apparatus for feeding thread in a sewing machine. The apparatus includes a thread feeding pass, a base tension disc, a thread holding device, an encoder, and a thread feeding device. The thread feeding device includes a presser roller and a feeding roller driven synchronously with a sewing needle. When a predetermined length of thread is fed to a thread take-up lever, the thread holding device is actuated to hold and stop the thread without stopping rotation of the thread feeding rollers such that the thread slips on the feeding rollers.Type: GrantFiled: December 27, 1985Date of Patent: March 17, 1987Inventor: Toru Matsubara
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Patent number: 4649720Abstract: In a straight and circular knitter, a control arrangement for supplying information upon needle selection on circulation knitting carriages includes a central control station provided with a main computer storing all information for controlling the knitting machine. Each knitting carriage is equipped with a control unit including an auxiliary computer, an end stage for operating the needles and a bus control circuit. The main computer is connected to respective circulating control units via a slide contact track and contact shoes coupled to respective auxiliary computers. The microprocessors in respective control units are interconnected by a bus including a transmitting line, a receiving and a bus control line. The bus control line forms with the bus control circuits and microcomputers of respective control units a closed loop which controls the transmission of error data to the main computer in the event that an error is detected in a control unit.Type: GrantFiled: December 9, 1985Date of Patent: March 17, 1987Assignee: VEB Kombinat TextimaInventors: Claus Hellwig, Ernst-Heinrich Hempel, Peter Kunath, Ulf Rinckleb
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Patent number: 4649722Abstract: Open warp knit technology is applied to a fabric having nonelastomeric yarn on the front bar and elastomeric yarn on the back bar to reduce the number of pinch points between the yarns of the fabric and improve its recovery property. The nonelastomeric yarn is knit in an open stitch construction and the elastomeric yarn is knit in a closed stitch construction.Type: GrantFiled: March 26, 1986Date of Patent: March 17, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventor: Bharat J. Gajjar
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Patent number: 4649721Abstract: A knitting instrument carrier (10), having grooves which are confined by alternate demarcation strips (27) and bearing strips (28) following one after the other, which are in rows on common anchor bars (29-31). An accurate division of the knitting instrument carrier (10) is assured by holding bars (16-18), on which the common anchor bars (29-31) are clamped and which are provided with divisionally accurate edge grooves (21-23) in which the demarcation strips (27) interlock with projections. The loop-forming projections with their nib (39) manufactured separately from the demarcation strips (27) are also made up of individual laminations (FIG. 1).Type: GrantFiled: June 12, 1986Date of Patent: March 17, 1987Assignee: H. Stoll GmbH & Co.Inventors: Ernst Goller, Eugen Staiger
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Patent number: 4648249Abstract: A needle selecting arrangement for a knitting machine with a knitting and stitching transmitting cam and a plurality of electromagnetic selecting elements, the arrangement comprises a plurality of spring biased needles each having a needle shaft; comprising at least one switchable displacement cam part arranged to move in front of the knitting and stitching transferring cam; a plate cover having a lower edge and a plurality of openings which are arranged in a stepped manner in association with the selecting elements and normal to a needle bed plane; an arresting rail provided with a plurality of grooves; a plurality of plates having a first side which faces toward the needles and provided at the first side with a substantially spherical end arranged to abut against the needle shaft and with a plate foot cooperating with the displacement cam part, each of the plates having an opposite second side which is fork-shaped and is provided with cam projections for tensioning against the lower edge of the plate coverType: GrantFiled: November 1, 1985Date of Patent: March 10, 1987Assignee: VEB Kombinat TextimaInventors: Andreas Neuer, Eberhard Grimmer, Hartwig Muller
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Patent number: 4648137Abstract: A shirt construction with a wing type collar is disclosed, having first and second strips of material secured to the neck band beneath the collar on opposite sides of the frontal opening. A third strip of material is pivotally attached to the first strip and has a surface of a hook or a pile type material, the first and second strips being of the other type. The size and arrangement of the strips is such that the third strip may be superposed with and releasably adhered to the opposing surface of the first strip, concealed beneath the collar when the latter is worn in the open condition, or turned 180.degree. about its pivotal mounting to extend across the frontal opening and adhered to the opposing surface of the second strip to close the frontal opening in the collar area at a desired width between a predetermined maximum and minimum.Type: GrantFiled: February 27, 1985Date of Patent: March 10, 1987Inventor: Leonard W. Cooper
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Patent number: 4648337Abstract: An edge guiding device is provided for sewing work with several edges extending at angles to each other, and on which parallel seams are to be formed, e.g., collars. The device has an edge ruler which is formed by a central section and two sections controllable independently of the central section, each with a guide face. During the formation of seams which begin or end at inside corners of the collar or work, the edge ruler is moved synchronously with the work displacement. Thereby, e.g., one-piece collars plus collarbands can be securely guided from the start during the formation of the seam sections beginning or ending at the inside corners of the collars. For guiding at a long side of the collar, which is usually curved, the outer sections of the edge ruler are pulled back and only the central section with its arched guide face is used for guiding the work.Type: GrantFiled: May 20, 1986Date of Patent: March 10, 1987Assignee: Pfaff Industriemaschinen GmbHInventor: Gunther Mall
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Patent number: 4646543Abstract: A knitting needle with a flexible cord, comprising: a bamboo or wood needle body having a tapered rear end section which includes a joint face and a conical peripheral surface and has an axial bore formed therein; a headed reinforcing member having an enlarged head formed at a rear end of a shank which is fastened to the bore of the rear end section and has an axial mounting bore extending thereinto through the head which includes a conical peripheral surface, a forward joint face and a rearward joint face; and a flexible cord having an enlargement which includes a forward joint face, a conical peripheral surface and an axial extension extending forwardly from the enlargement into the bore of the reinforcing member, wherein the peripheral surface of the reinforcing member is interposed between and flush with the peripheral surface of the rear end section and the peripheral surface of the enlargement, with the rearward joint face of the rear end section bonded to the forward joint face of the reinforcing membeType: GrantFiled: April 30, 1986Date of Patent: March 3, 1987Assignee: Clover Mgf. Co., Ltd.Inventor: Hidekazu Okada
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Patent number: 4646544Abstract: For a knitted fabric expander device on flat bed knitting machines, the guide bars positioned at the edge of the knitted fabric with their end projecting over the comb gap (13) are coupled in a detachable manner via a switch body (31) with a holder/expander (18) arranged beneath the needle beds (11, 12). The guide bars can be drawn upwards through the comb gap (13) together with the switch body (31) and reinserted from above into their adjustable or movable holder/expander (18).Type: GrantFiled: May 19, 1986Date of Patent: March 3, 1987Assignee: H. Stoll GmbH & Co.Inventor: Ernst Merkh
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Patent number: 4646542Abstract: The device comprises a small plate elastically flexible, longitudinally flanked by a needle for plain knitting, or purl knitting, and movable in a direction longitudinal with respect to it. The needle has on one of its sides an inclined area with which at least one inclined area engages, defined by a bend of the small plate at the moment of its motion relatively to the needle. In this manner an elastic flexing of the small plate is obtained moving away from the needle which defines a loop within which a needle for purl or plain knitting can be inserted, in order to transfer a loop of knitting retained around the loop.Type: GrantFiled: June 27, 1986Date of Patent: March 3, 1987Assignee: Mec-Mor S.p.A.Inventor: Riccardo Tenconi
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Patent number: 4645248Abstract: The yarns to be selected are mounted on a selecting rocker pivoting about an axis and are held by a clipper. The yarn is selected by this rocker and is raised by a lever. A finger performs two turns and forms a closed loop of this yarn. An arc-shaped rod which is integral with an arm mounted so as to oscillate about a shaft brings the yarn being knitted into the open end of the finger. A hook takes the closed loop of yarn while oscillating about a vertical shaft and returning to its initial position. It releases this loop and grips the yarn being knitted which is then cut by the clipper actuated by a finger which is integral with the arm and engages with a cam integral with the axis of the clipper. At the same time, the selected yarn is freed by this clipper.Type: GrantFiled: June 18, 1986Date of Patent: February 24, 1987Assignee: H. Stoll G.m.b.H. & Co.Inventors: Remi Cottenceau, Francois Fischer