With Stretching Patents (Class 57/310)
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Patent number: 4481996Abstract: In order to improve the fatigue resistance of a cable, particularly a rubber adherable cable for reinforcing rubber articles such as vehicle tires, substantially uniformly distributed residual compressive stress is induced in substantially the complete peripheric zone of the wires making up the cable. The stress may be induced by submitting lengths of the cable to a number of elementary bending--unbending operations in considerably different planes and simultaneously tensioning the cable.Type: GrantFiled: February 4, 1982Date of Patent: November 13, 1984Assignee: N. V. Bekaert S.A.Inventors: Marc De Bondt, Urbain D'Haene, Paul Dambre
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Patent number: 4408376Abstract: A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from the yarn feed rolls to the draw rolls.Type: GrantFiled: April 28, 1978Date of Patent: October 11, 1983Assignee: Phillips Petroleum CompanyInventors: Charles S. Hatcher, Kenneth E. Smith
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Patent number: 4359856Abstract: The invention provides a process and apparatus for forming a yarn of at least two separate continuous filaments and a plurality of fibers. At least one of the filaments is of a partially oriented thermoplastic material such that when a twisting force is applied, a retained twist is obtained due to inter-molecular slippage in the partially oriented filament.Type: GrantFiled: October 4, 1979Date of Patent: November 23, 1982Inventor: Emilian Bobkowicz
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Patent number: 4343144Abstract: The control arrangement is used in conjunction with a textile machine at which a thread or a filament, respectively, supplied from a creel package is guided via a roll, around which it forms a plurality of windings, to a thread guide eyelet and to a ring spindle system. The invention aims at the reliable elimination of any danger of lap-up formation on the roll including the danger of lap-up formation caused by unwinding the thread from a take-up bobbin (unwinding "overhead" from the take-up bobbin). The control arrangement comprises a first thread severing element which severs the thread upstream from the roll, and a second thread severing element which severs the thread along the unwinding path between the roll and the take-up bobbin.Type: GrantFiled: February 13, 1981Date of Patent: August 10, 1982Assignee: Rieter Machine Works Ltd.Inventors: Walter Ernst, Hans Giger, Ernst Sigrist
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Patent number: 4342189Abstract: Disclosed is an apparatus for producing a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability.Type: GrantFiled: October 20, 1980Date of Patent: August 3, 1982Assignee: Toray Industries, Inc.Inventors: Takao Negishi, Kazuo Tomiita
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Patent number: 4341068Abstract: Disclosed is process for producing a bundle of fibrous elements, at least some of which are uneven in the thickness in the axial direction thereof, namely some of which include thick portions having a larger sectional area and thin portion having a smaller sectional area. In these fibrous elements constituting the fibrous bundle, the thick portions have, in general, a higher dyeability than the thin portions, and in the fibrous bundle, these higher dyeability portions are formed substantially randomly at a distribution ratio of at least 300 portions per 10 cm of the length of the fibrous bundle. This fibrous bundle is characterized in that it apparently resembles a fibrous bundle composed of fibrous elements uniform in the thickness and dyeability.Type: GrantFiled: October 14, 1980Date of Patent: July 27, 1982Assignee: Toray Industries, IncorporatedInventors: Takao Negishi, Kazuo Tomiita
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Patent number: 4341063Abstract: Method to provide a novel air textured yarn by combining a cold drawn core yarn and a false twisted effect yarn in a fluid tangling zone.Type: GrantFiled: August 26, 1980Date of Patent: July 27, 1982Assignee: Milliken Research CorporationInventors: William F. Southerlin, Paul W. Eschenbach
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Patent number: 4229404Abstract: A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from the yarn feed rolls to the draw rolls.Type: GrantFiled: April 28, 1978Date of Patent: October 21, 1980Assignee: Phillips Petroleum CompanyInventors: Charles S. Hatcher, Kenneth E. Smith
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Patent number: 4215530Abstract: In a process and apparatus for manufacturing drawn and twisted multifilament synthetic yarn an extruded and partially drawn filamentary synthetic yarn is subjected to a supplementary, simultaneous, drawing and twisting operation using a double twist spindle rotated such that the tension in the yarn causes drawing. After the spinning and drawing, the yarn is subjected to heat treatment under controlled tension and is then wound up.Type: GrantFiled: January 9, 1979Date of Patent: August 5, 1980Assignee: ASA S.A.Inventors: Patrick Beau, Carlos M. Gabalda
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Patent number: 4185451Abstract: A yarn is twist-drawn on an apparatus employing a 2-for-1 twist spindle; at least one guide roll positioned above the spindle; means suitable for receiving a yarn from said guide roll and drawing the yarn; and means suitable for winding the drawn yarn, wherein the guide roll comprises a cylindrical surface mounted on a shaft which is attached to a base suitable for positioning the cylindrical surface so that the yarn rides on the surface of the roll in a relatively fixed position and a substantial amount of twist is not trapped in the yarn ahead of the guide roll.Type: GrantFiled: July 7, 1978Date of Patent: January 29, 1980Assignee: Phillips Petroleum CompanyInventors: Charles S. Hatcher, Kenneth E. Smith
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Patent number: 4168603Abstract: At least one plastic sheeting element which is oriented at least monoaxially and at least in part in a direction which differs appreciably from the longitudinal direction of the sheeting element is twisted to form a string for a ball-striking implement.Type: GrantFiled: February 10, 1978Date of Patent: September 25, 1979Assignee: Fischer Gesellschaft m.b.H.Inventors: Gerhard Reich, Walter Stephan
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Patent number: 4168606Abstract: The invention of this application relates to strings for game rackets which are formed of large monofilaments of thermoplastic, fiber-forming resin in which the monofilaments are twisted to form a bundle and two or more bundles are cabled and twisted in the opposite direction from the twist of the bundle, the composite string being oriented and heat set to prevent unravelling of the string. The strings are laced into a game racket such as a tennis racket under a tension of about 50 pounds to form a racket which has good playing properties as well as tensile retention and good resilience retention.Type: GrantFiled: May 31, 1977Date of Patent: September 25, 1979Assignee: The Goodyear Tire & Rubber CompanyInventor: Douglas D. Callander
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Patent number: 4168138Abstract: A spray spinning nozzle for producing a substantially continuous filament from a molten synthetic resinous material includes a nozzle with a removable orifice from which a filament of molten material is emitted and a gas attenuation assembly which is laterally removable from the nozzle. The attenuation assembly includes at least three gas jets spaced about and radially close to the nozzle axis for emitting parallel high velocity jets. Drag forces produced by the gas jets attenuate the filament to a thin diameter.The resulting filament has a comparatively narrow range of diameter variation.Type: GrantFiled: June 1, 1977Date of Patent: September 18, 1979Assignee: Celanese CorporationInventor: Donal McNally
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Patent number: 4166357Abstract: Filaments are extruded from polyolefin. A plurality of filaments are formed into a strand by twisting. The twisted strand is is twisted with other strands to form a rope which retains its tensile strength and reduces elongation. The filaments are made into strands before the heat introduced during extrusion has completely dissipated.Type: GrantFiled: May 16, 1977Date of Patent: September 4, 1979Assignee: Sunshine Cordage CorporationInventor: William L. Carranza
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Patent number: 4162607Abstract: In order to interlace a plurality of textured filaments and produce bundled yarn, a plurality of textured filaments having reverse twists creating opposing torques, of which the bundled yarn is to be formed, are initially subjected to a prescribed degree of tension. The tensioned filaments are then brought together and permitted to relax. Upon relaxing, the textured filaments tend to entangle with each other to form the bundled yarn having a resultant neutral torque. The entanglement is carried out without the need for supplying jets of air to the yarn to force them to tangle together.Type: GrantFiled: July 1, 1977Date of Patent: July 31, 1979Assignee: Akzona IncorporatedInventor: Bron W. Spivey