Patents Examined by Donald E. Watkins
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Patent number: 3962855Abstract: A start-spinning apparatus which travels along an open-end spinning machine has means which lift a winding cone of an open-end spinning unit away from its drive means, which pick up an end of the thread from the winding cone and which return said end to a spinning rotor of the open-end spinning unit again for start spinning, and which finally withdraw the thread therefrom again. In order to produce precise operating conditions, the return of the end of the thread to the spinning rotor and drawing off of the thread again are controlled by a separate pair of trapping rollers after the end of the thread, which has been trimmed to a certain length, has been transferred to a yarn removal channel leading to the spinning rotor by a transfer trapper.Type: GrantFiled: December 9, 1974Date of Patent: June 15, 1976Assignees: Fritz Stahlecker, Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 3959961Abstract: Located in the path of transport for the fibres in an apparatus for supplying separated fibres to a spinning rotor of an open-end spinning unit is a removal opening, from which the impurities contained in the fibrous material are removed. In order to be able to provide mechanical conveying means, which do not disturb the pneumatic fibre transport, behind the removal opening and at a relatively great distance therefrom, the removal opening is designed in such a manner that it serves as a type of air buffer and impairs the formation of a strong air flow.Type: GrantFiled: October 25, 1974Date of Patent: June 1, 1976Assignees: Fritz Stahlecker, Hans StahleckerInventor: Fritz Stahlecker
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Patent number: 3959962Abstract: A bulked polyester textile yarn composed of drawn helically crimped bicomponent continuous filaments and drawn substantially uncrimped continuous homofilaments is made by interlacing and substantially simultaneously relaxing a mixture of (A) potentially crimpable, drawn bicomponent filaments and (B) drawn continuous homofilaments, the filaments (A) having greater potential shrinkage than filaments (B).Type: GrantFiled: February 21, 1974Date of Patent: June 1, 1976Assignee: Imperial Chemical Industries LimitedInventor: Frank Wilding
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Patent number: 3958407Abstract: A yarn texturing process wherein the yarn is false twisted and heat set and wherein the yarn is passed through an elongated heat transfer means and is supported therein on a cushion of fluid flowing in the heat transfer means.Type: GrantFiled: August 22, 1974Date of Patent: May 25, 1976Assignee: Imperial Chemical Industries LimitedInventors: Martin Joseph Roden, Frederick William Shaw
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Patent number: 3958403Abstract: In an open-end spinning unit for producing yarn from fiber material, the unit including a spinning rotor having a circumferential portion extending axially from one axial end face of the rotor to enclose a space in which such yarn is formed and which defines a fiber collection trough, and a fiber guide disc rotatably mounted coaxially of the rotor and having at least a portion disposed within such space, the guide disc is free of physical connection to any drive system and is mounted to be freely rotatable, and the unit further includes a force transmitting arrangement operatively connected between the rotor and the disc for causing the rotation of the rotor to induce rotation of the disc without physical contact between the rotor and the disc.Type: GrantFiled: April 25, 1975Date of Patent: May 25, 1976Assignee: Fried. Krupp Gesellschaft mit beschrankter HaftungInventor: Rolf Wehling
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Patent number: 3956878Abstract: A process is described for false twist texturing polyester filament yarn at greatly enhanced speeds while inserting comparable twist levels and obtaining comparable yarn bulk without increasing yarn heat setting lengths. The process is particularly adopted to the utilization of partially oriented yarns in a draw texturing operation utilizing friction twisting as the means for simultaneously drawing and heat setting the yarn in a twisted state.Type: GrantFiled: September 10, 1974Date of Patent: May 18, 1976Assignee: Fiber Industries, Inc.Inventors: Peter Schaffer, Geoffrey R. Scantlebury
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Patent number: 3956877Abstract: A spliceless longitudinally extending strand structure and method of fabricating the same which method embodies the steps of stranding at least one generally elongated strand wire about a first individual core wire segment to form a first outer layer segment, bonding a second core wire segment to the first core wire segment, bonding a second generally elongated strand wire to each of the first strand wires and stranding the second strand wires about second core wire segment as a second outer layer segment to form a continuous length of a strand structure. This process is continued until a strand structure of desired length is obtained. A stranded cable is formed by helically twisting a plurality of strand structures together. In the strand structure, the bonded joints connecting the strand wires between adjacent outer layer segments are spaced from the joint between the associated core wire segments and from each other longitudinally of the strand structure.Type: GrantFiled: April 2, 1975Date of Patent: May 18, 1976Assignee: American Chain & Cable Company, Inc.Inventor: William John Gilmore
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Patent number: 3955350Abstract: An apparatus for false twisting threads has three spindles arranged to rotate about substantially parallel axes and fixed at the corners of a triangle centered on the mean path of the thread with friction elements carried by the spindles overlapping each other and means for moving a thread from a position outside the friction elements into a position where the thread follows a zig-zag path between the friction elements and is twisted thereby through an intermediate position where the thread first engages only some of the friction elements and is then moved into position for full rotation.Type: GrantFiled: December 10, 1974Date of Patent: May 11, 1976Assignee: Kugelfischer Georg Schafer & Co.Inventor: Friedrich Schuster
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Patent number: 3955349Abstract: Apparatus and processes are described in which a friction twist imparter is used to twist two filaments or filament bundles while passing through a processing zone in which the filaments are textured by imparting a temporary high twist to the filaments and heat-setting the twisted filaments. Variations in twist density due to variations in the co-efficient of friction between the ply-yarn and twist imparter are controlled by separating the ply-yarn into two separate filaments or bundles of filaments at a point beyond the friction imparter and sensing variations in the position of the separation point, the wrap angle or tension, or both, of the ply-yarn leaving the friction twist imparter being adapted to such variations. The means for this particularly described are mechanical and include a spring-loaded lever projecting between the separated filaments at the separation point so as to follow changes in the position of this point.Type: GrantFiled: April 28, 1975Date of Patent: May 11, 1976Assignee: Heberlein & Co. AGInventors: Kurt Greenwood, Philippe Lanz
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Patent number: 3955348Abstract: A wire cabler is described in which wire is deployed from rotating spools supported on an oppositely rotating frame in a manner which causes the wire to pass in engagement with the circumferential edges of the spools. The relative rotation of the spools and the rotating frame is such that the twist imparted to the wire is substantially equal but in opposite directions for full and nearly empty spools.Type: GrantFiled: February 3, 1975Date of Patent: May 11, 1976Assignee: Belden CorporationInventor: John F. Orlandi
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Patent number: 3952492Abstract: In a textile machine provided with displaceable means for carrying out an operation utilizing air pressure, a main duct is disposed along the length of the machine, and the main duct is provided with a longitudinal aperture covered with a flexible covering member which permits formation of a space by deforming the skirt portion of the covering member. A connecting pipe of the displaceable means is inserted into the main duct through the space and the connecting portion is sealed by a sealing member secured to the pipe during the displacement of the displaceable means.Type: GrantFiled: June 27, 1974Date of Patent: April 27, 1976Assignees: Daiwa Boseki Kabushiki Kaisha, Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Tsutomu Miyazaki, Takashi Kato, Toshio Yoshizawa, Yasuo Yamada
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Patent number: 3952495Abstract: In abstract, a preferred embodiment of this invention is a drive tape tension assembly for use with textile spinning and twisting machines. This assembly is constructed primarily of spring steel and gives the desired control and stops while at the same time eliminating much apparatus heretofore needed to accomplish the same results.Type: GrantFiled: February 20, 1974Date of Patent: April 27, 1976Assignee: Roberts CompanyInventor: Robert H. Petty
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Patent number: 3950933Abstract: A stuffer box crimped yarn of lengthwise uniformity in appearance is produced by twisting together or, more specifically, cabling at least three multifiliment ends, at least one of the ends being of a different color, initial twist or initial texture from at least one other of the ends, or by twisting together, that is, wrapping, two stuffer box crimped multifilament ends, at least one of the ends having an initial twist, the ends being of different colors, initial twists or initial textures.Type: GrantFiled: February 15, 1974Date of Patent: April 20, 1976Assignee: Concorde Fibers Inc.Inventor: Royal P. Tuthill
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Patent number: 3950929Abstract: A method and apparatus of feeding a sliver into a combing section in an open end spinning machine including a feed roller and a combing roller which are arranged side by side on parallel axes within a main body. A pressed sliver is released from the peripherial surface of the feed roller and is guided by the nip surface of a presser which has a curved portion of a radius which is a little larger than that of the feed roller and a flat fiber guide surface extending from the nip surface toward the combing roller substantially linearily relative to the nip surface to guide the sliver fed out from the feed roller to the combing roller. Guide walls are provided extending along the fiber guide surface for limiting the spreading of the fiber bundle passing along the guide surface.Type: GrantFiled: October 8, 1974Date of Patent: April 20, 1976Assignees: Daiwa Boseki Kabushiki Kaisha, Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takashi Morikawa, Hidetoshi Kihara, Tooru Urifu, Hisateru Takahashi
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Patent number: 3950932Abstract: A multi-colored, cabled, stuffer box crimped yarn containing filaments of respectively at least two non-contrasting colors and a contrasting color, the filaments of the at least two non-contrasting colors imparting a heather appearance to the yarn and the filaments of the contrasting color imparting color accents to the yarn, is produced by cabling together at least three stuffer box crimped multifilament ends, each of the three ends containing filaments of at least two non-contrasting colors and one of the three ends containing filaments of the contrasting color in a discrete grouping and in a proportion greater than the proportion in the same end of filaments of any individual non-contrasting color and, prior to being twisted together with the other ends, containing a twist in the same sense as the twist to be imparted in the step of twisting together all the ends and, after being twisted together with the other ends, preferably containing a twist of a higher degree than the twist contained in the other endType: GrantFiled: December 30, 1974Date of Patent: April 20, 1976Assignee: Concorde Fibers Inc.Inventor: William Woodbridge Durling
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Patent number: 3950925Abstract: In spinning machines, a thread is spun from a roving emerging from a draw frame. When a thread breakage occurs, the roving continues to emerge but its path is deviated by air currents.The presence of the roving on the deviated path is detected and a thread re-attachment process is initiated.An apparatus for practicing the above method includes a light source and light detector for determining the presence of the roving in the appropriate location. An alternative embodiment of the invention provides a mechanical device, e.g. a foraminous gate, to respond to the presence of unspun roving in a suction bypass channel of the spinning machine. In both cases, an actuating signal is produced for initiating the thread re-attachment process.Type: GrantFiled: August 5, 1974Date of Patent: April 20, 1976Assignee: Zinser Textilmaschinen GmbHInventor: Wolfgang Igel
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Patent number: 3950930Abstract: The present invention relates to a false twisting device comprising false twisting spindles including a turbine provided with turbine blades capable of rotating by employing of fluid and controlling device for the rotation number of the turbine. The control of the rotation number can be performed by using a rotation number detector, a rotation number prescribing device, a controller for controlling the rotation number of each turbine through a sevo valve and a scanner.Type: GrantFiled: August 6, 1974Date of Patent: April 20, 1976Assignee: Murata Kikai Kabushiki KaishaInventors: Noboru Shindo, Hiroshi Hashizume, Shuichi Kikuchi
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Patent number: 3950934Abstract: An improved plumbers snake and the method of making same of unique construction having a metal core concentrically disposed within a coiled spring wire member and an intermediate resilient body in gripping engagement with the metal core. The intermediate body includes a helically-shaped protrusion extending along its length, the turns of which are interposed between and operably engage the coils of the spring wire member so as to yieldably resist axial bending of the snake and optimize rigidity and flexibility.Type: GrantFiled: March 13, 1975Date of Patent: April 20, 1976Assignee: Augerscope, Inc.Inventor: Lawrence F. Irwin
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Patent number: 3949543Abstract: The present disclosure relates to a method and a machine for forming stranded wire into a wire cord and comprises the steps and elements of mounting several spools of individual wire strands on a common arbor in a manner that the strands may be unwound in the same direction and fed to a gathering sheave, rotating means for supporting two spaced-apart flyer sheaves arranged radially upward of said gathering sheave, said flyer sheaves being arranged so that the several strands are fed radially outward from said gathering sheave and, hence, from one flyer sheave to the other and, thence, to a discharge station arranged coaxially with said gathering sheave and on the same side of a wire coiling means adapted to pull the wire through the machine, the construction and arrangement of elements being such that the individual strands of wire are caused to be formed into a wire cord in which the number of twists per unit length is a function of the speed of travel of the wire and the revolutions per minute of the rotatiType: GrantFiled: November 15, 1974Date of Patent: April 13, 1976Assignee: Wean United, Inc.Inventor: Jesse Clarence Bittman
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Patent number: 3948034Abstract: A method for false twisting filamentary yarn using a friction false twist device comprising a rotatable hollow spindle with a friction surface or bush mounted at one end thereof.Type: GrantFiled: April 26, 1974Date of Patent: April 6, 1976Assignee: Imperial Chemical Industries LimitedInventor: Raymond George Gosden