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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 4566646 | Take-up machine motor control This invention relates to a take-up machine utilized in conjunction with the production of fiber or yarn wherein the product fiber or yarn, as it is produced, is wound onto spools or tubes. A control is provided for varying the speed of an electric motor ... | 01/28/1986 |
| 4528556 | Defective motor brush detector This invention relates to apparatus for detection and monitoring of improper operation of commutator-brush combinations conveying current to or from the electromagnetic rotary member of a motor or generator, and relates, more particularly, to means for de... | 07/09/1985 |
| 4518126 | Take-up mechanism A take-up mechanism for a winding unit wherein yarns, tapes or other strands are wound on tubes or similar supports. The invention particularly relates to a compensator wheel mounted for pivoting so that it maintains alignment with the strand passing ther... | 05/21/1985 |
| 4473096 | Weft end reception system In a loom of the type in which a weft strand is projected in free flying fashion from one side of a warp shed to the opposite side thereof and which includes a lay rockable between a weft projecting position and a beat up position, a reed fixed on the lay... | 09/25/1984 |
| 4471817 | Fluid weft insertion loom monitoring system A monitoring unit for a fluid weft insertion loom monitors the yarn supply withdrawal.... | 09/18/1984 |
| 4471818 | Fluid weft insertion loom monitoring system The admission of pressurized fluid into the weft insertion nozzle of a loom is detected by an electrical signal generating means arranged in the nozzle in communication with the fluid delivery passage through the nozzle, the generating means generating a ... | 09/18/1984 |
| 4466469 | Air weft insertion nozzle control system The actuation of a nozzle utilized for propelling the yarn in an air weft insertion weaving system is controlled by means of a single rotary servo valve having an arrangement of ports adapted to be brought during valve rotation into registration alternate... | 08/21/1984 |
| 4466468 | Strand delivery system An intermittently-operating strand delivery system having: (1) a nozzle passageway through which the strand is guided; (2) a supply for pressurized medium; (3) conduit means connecting between said nozzle passageway and said supply including a pressure-operated on-... | 08/21/1984 |
| 4458729 | Strand delivery and storage system A strand is furnished to a strand consuming unit, e.g. loom, having a periodic demand for a finite length of strand by: (a) continuously advancing the strand from a supply source for winding onto a first surface, (b) continuously advancing the strand from the ... | 07/10/1984 |
| 4454997 | Inlet guide means for strand user devices In strand user devices such as a yarn storage feeder system of the type disclosed in U.S. Pat. No. 3,776,480 and having a yarn storage unit upon which a quantity of yarn is maintained from a yarn supply for intermittent withdrawal and delivery to yarn con... | 06/19/1984 |
| 4454084 | Extrusion die control system The thickness of plastic film extruded from a die is maintained at a desired uniform dimension by utilizing the thermal expansion and contraction of die adjusting bolts to control the width of the orifice of the die. A thickness gauge measures the film th... | 06/12/1984 |
| 4450874 | Yarn clamp An improved solenoid actuated yarn clamp for controlling the flow of a moving strand of yarn particularly in conjunction with a fluid weft insertion loom. The improved clamp is double acting, being displaced positively between an operative yarn clamping p... | 05/29/1984 |
| 4421141 | Fabric selvage forming Increased resistance to unraveling is imparted to a fringe selvage of the type formed by weaving on a fluid weft insertion loom by means of a special selvage construction produced along the opposite side edges of the fabric which combines a pair of twiste... | 12/20/1983 |
| 4407334 | Method and apparatus for positively removing weft from air insertion guidance tube In a method and apparatus for weaving in which a weft strand is projected in substantially free flight into the warp shed of a loom and is guided across at least a portion of the shed by a plurality of guides, preferably annular in shapes disposed in oper... | 10/04/1983 |
| 4396040 | Quality monitoring system for looms A quality monitoring system for looms is disclosed. The system includes a plurality of signal producing units disposed at various loci on the loom. These units operate to detect faults in the warp or filling yarns being woven into the fabric. Detection of... | 08/02/1983 |
| 4384596 | Means and method for sensing loom conditions indicative of potential fabric defects A first sensor comprising interspersed light emitting and receiving fibers is situated at the egress slot of an air containment element on a fluid weft insertion type loom and retroreflectively senses filling yarn as it egresses from the element. The firs... | 05/24/1983 |
| 4380254 | Weft guidance tube for looms A weft guidance tube for a fluid weft insertion system of weaving apparatus includes an elongated member having a longitudinal channel therein. A plurality of segments are juxtaposed in the channel. Each of the segments includes a base and an upper end, w... | 04/19/1983 |
| 4377261 | Granulator and improved feed means therefor A granulator primarily intended for the granulation of plastic scrap material in which a pair of meshed paddle rolls serve as a combination metering and feed device through which such plastic material is fed to the granulator. The paddle rolls are mounted... | 03/22/1983 |
| 4377377 | Differential pressure forming machine with variable mold closed cycle A thermoforming machine having opposed mold platens includes a linkage system driven in cyclic movement by rotary cam mechanism to cyclically shift the platens between their open and closed position. The cam mechanism is driven by a variable speed motor w... | 03/22/1983 |
| 4368854 | Yarn feeder motor control In a yarn storage feeder system of the type disclosed in U.S. Pat. No. 4,226,379 and having a yarn storage unit upon which a quantity of yarn is maintained from a yarn supply for intermittent withdrawal and delivery to yarn feeding and/or consuming means,... | 01/18/1983 |
| 4362189 | Fluid weft insertion loom monitoring system A monitoring system for a fluid weft insertion loom monitors the significant operative events of each weaving cycle of the loom, e.g. yarn supply withdrawal, insertion nozzle actuation and yarn end arrival, and indicates the occurrence of each such event,... | 12/07/1982 |
| 4347872 | Air weft insertion system A method and apparatus for inserting a weft strand into the shed of a loom or the like in which a confined zone is provided in proximity to the shed serving as a guide for a weft strand passing through the zone, and a sustained pulse of a supersonic gaseo... | 09/07/1982 |
| 4321027 | Under the press granulator construction A granulator primarily intended for in situ use in combination with an injection molding machine such that plastic scrap such as sprues and runners generated in such formation of plastic parts may be granulated thereby. The granulator is adapted for dispo... | 03/23/1982 |
| 4302172 | Extrusion die assembly An adjustment mechanism for a restrictor bar in a die construction of the type in which such restrictor bar is movable into and out of the internal flow path of the die so as to regulate extrusion of material therefrom. The restrictor bar movement is in a... | 11/24/1981 |
| 4300599 | Warp detection system Loss of tension in individual warp threads is detected in the lease zone by directing a flow of air against one side of the warp threads within the lease zone to displace any relatively untensioned thread toward the opposite side of said zone and detectin... | 11/17/1981 |
| 4294414 | Feed roll device for sheet granulator A device for feeding sheet material into a granulator and particularly scrap plastic sheet material of the type wherein a plurality of such sheets are normally twisted together to form a composite rope which is fed between opposed feed rolls and subsequen... | 10/13/1981 |
| 4280626 | Product separation and granulation system A system for initially separating injection molded plastic parts from the sprue and runner assemblies formed therewith. The system is primarily intended for in situ use with an injection molding machine and includes a hopper-like structure having a suppor... | 07/28/1981 |
| 4226077 | Method and apparatus for manufacturing wrapped yarns Method and apparatus for producing high quality wrapped yarn by a wrapping operation wherein a binder strand, carried by a supply package supported by a rotatably driven hollow spindle, is fed to the free end of the hollow supply spindle and wrapped aroun... | 10/07/1980 |
| 4226379 | Loom storage feeder improvement The disclosure relates to a system and method for correlating strand withdrawal speed from a strand supply package and utility means such as a shuttleless loom thereby reducing the possibility of supply package sloughs and strand breakage caused by condit... | 10/07/1980 |
| 4221753 | Extrusion process An extrusion process is disclosed wherein coolant under pressure is directed against the outer surface of a thermoplastic material being forced through an extrusion orifice such that at least a portion of the coolant immediately vaporizes and the resultan... | 09/09/1980 |
| 4191039 | Sheet shaping method An improved method and apparatus for shaping sheets of thermoplastic material is disclosed in which sheets are pressure molded against a mold member by the direct application of a liquid coolant under pressure thereto. The coolant contacts the surface of ... | 03/04/1980 |
| 4184832 | Die construction An extrusion pelleting apparatus is disclosed wherein the outermost portion of an extrusion orifice is surrounded by a heat reservoir maintained at a temperature significantly higher than the softening temperature range of the polymer being extruded. The ... | 01/22/1980 |
| 4184833 | Pelletizing apparatus A knife adjustment system including a normally non-rotatable quill threadably attached to a hub outwardly extending from the face of an extrusion die at a point proximal said face in order to insure that the operating temperatures of such quill and hub at... | 01/22/1980 |
| 4176796 | Feed device for sheet granulator and method of feeding same This invention relates to size reduction apparatus and particularly to a novel feed device thereof and method of feeding sheet material thereto. A first baffle is adapted to extend into the cutting chamber simultaneously towards the cutting rotor and a do... | 12/04/1979 |
| 4171778 | Granulator rotor The present invention relates to a rotor construction and particularly one in which the rotor includes a plurality of open-faced knife sets each having at least a pair of longitudinally spaced plates. At peripherally spaced locations between said plates, ... | 10/23/1979 |
| 4151241 | Method of cooling pellets A pellet cooling system including a novel coolant cage construction and operational manner so as to insure the cooling of warm thermoplastic pellets as they emerge from a die head and are cut by rotating knives is disclosed. After cooling, as by entrainme... | 04/24/1979 |
| 4151251 | Pelletizing process An extrusion pelletizing process is disclosed wherein coolant is injected into the stream of thermoplastic material being extruded in such a fashion to interrupt the flow thereof and form discrete material lengths thereof as the material moves through the... | 04/24/1979 |
| 4115990 | Voluminous filamentary yarn and method of manufacture Disclosed herein is a novel voluminous multi-filament stretch of set yarn and a method for manufacturing the yarn. The yarn, formed from continuous filaments, substantially all of which have the same extension to break, has the appearance of spun yarn, i.... | 09/26/1978 |
| 4112039 | Pelletizing process An extrusion pelleting process and apparatus is disclosed wherein the outermost portion of an extrusion orifice is surrounded by a heat reservoir maintained at a temperature significantly higher than the softening temperature range of the polymer being ex... | 09/05/1978 |
| 4106708 | Granulator and knife construction therefor The present disclosure relates to a knife construction adapted for positioning within cut out seat portions of a rotor. The base of the knife is provided with a downwardly extending relatively narrow leg at the front face thereof which is adapted to engag... | 08/15/1978 |
