Wheel Or Pulley Patents (Class 242/155R)
  • Patent number: 6068241
    Abstract: Disclosed is a pulley that comprises a metal bearing with an elastomeric material on its outer rim molded into a polymeric wheel, where the coefficient of thermal expansion of the polymeric wheel is at least 1.0.times.10.sup.-6 cm/cm/.degree.C. greater than the coefficient of thermal expansion of the metal bearing. The pulley is made by applying an elastomeric material to the outer edge of the metal bearing and molding the polymeric wheel around it. The use of the elastomeric material prevents slippage between the metal bearing and the polymeric wheel.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: May 30, 2000
    Assignee: Occidental Chemical Corporation
    Inventor: Leon G. Meyer
  • Patent number: 5957402
    Abstract: The present invention relates to a method and apparatus for reducing catenary during winding of a fiber bundle which includes a plurality of fiber strands into a wound package. The method includes: applying substantially equal tension to each of a plurality of fiber strands; gathering the strands to form a bundle; advancing the bundle at a predetermined speed and tension toward a winding device; measuring the tension of the bundle; adjusting the tension of the bundle by adjusting the speed at which the bundle is advanced, such that (1) the speed of advancement of the bundle is increased when the measured tension of the bundle exceeds a predetermined value and (2) the speed of advancement of the bundle is decreased when the measured tension of the bundle is less than a second predetermined value; and winding the bundle to form a wound package.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: September 28, 1999
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Eugene D. McEathron, Harry Makitka, Robert W. Singer
  • Patent number: 5743307
    Abstract: A system for bringing ground warp threads under tension on a beam stand comprises first and second rollers on which the ground warp threads run. The first roller is mounted on a support which is movable in relation to the second roller. A mechanism for exerting force on the support is provided whereby the ground warp threads on the beam stand are brought under tension. The mechanism includes a hydraulic element that is connected to a hydraulic pressure vessel by a pipe provided with an apparatus for controlling or regulating the hydraulic fluid.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: April 28, 1998
    Assignee: Michel Van De Wiele N.V.
    Inventors: Carlos Derudder, Joseph Verschelde
  • Patent number: 5429319
    Abstract: A compensating thread brake useful, in particular, with warping creels. The thread brake has a rotatable roller whose circumference is at least partially surrounded by and drivable by thread. The roller is connected to the rotor of a turbine. A mechanical thread tension comparator by way of its setting member, influences a throttle in the path of the turbine inlet or outlet stream. The setting member may, preferably, be a throttle plate which regulates the inlet or outlet ports of turbine T. In this manner, the thread tension may be controlled without frictional load on the threads or the need to provide seals against oil or the like. Additionally, an eddy current brake can be provided for the nominal setting of the basic thread tension.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: July 4, 1995
    Assignee: Karl Mayer Textilmaschinenfabrik GmbH
    Inventors: Bodgan Bogucki-Land, Peter Schmuck
  • Patent number: 5406327
    Abstract: Tensioning device suitable for providing an adjustable and balanced tension to the power-supply and multiplexing cable (1) and to the coaxial video transmission cable (2), these being connected up to a camera turret supported by a carriage (C) for to-and-fro translation in a video surveillance tunnel, each of these two cables (1, 2) being anchored in a fixed manner to the carriage (C), as well as to its point (P1, P2) of penetration into the tunnel, coming from outside the latter, and being rigged up over the pulley of a respective tensioning pulley block (M1, M2) before being anchored to the corresponding bracket (S1, S2) of the carriage (C), these two pulley blocks (M1, M2) being connected by a flexible cablet (3) passing over return pulleys (4, 5, 7) and a roller (6) of a tensioning device.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: April 11, 1995
    Assignee: Dessins Et Techniques De L'Ingenierie
    Inventor: Albert Guarnotta
  • Patent number: 5318630
    Abstract: A wire tensioning device having a guide for taking up an advancing wire having slack and a brake for applying a braking force to the guides. In a wire insulating system, a wire from a supply reel or spool is passed to a take-up reel or spool, through intervening components, which accumulate, tension and apply insulation to the advancing wire. The wire is first passed from the supply reel to an accumulating device in the form of a vertical accumulator or a flipper payout. From there it is passed through the device of the present invention having a plurality of rotatable sheaves or pulleys about which the advancing wire is trained. A braking force is applied to one of the sheaves by an air brake to apply a tensioning force. From the tensioning device, the wire is fed through an insulation-applying crosshead device and then on to a take-up reel or spool.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: June 7, 1994
    Assignee: Southwire Company
    Inventors: Mickey E. Akin, Stephen C. Bohannon, Darrell L. Harrison, Michael L. McCloud
  • Patent number: 5000397
    Abstract: A cassette for storing and dispensing filamentary material to a machine for producing hollow articles by filament winding includes a housing having an outlet; a spindle supported internally of the housing; a hollow roll rotatably mounted on the spindle; and a reel of filamentary material carried by the hollow roll. The reel is fixed for rotation with the hollow roll and the hollow roll is rotatable in one direction to permit unwinding of the filamentary material from the reel. A force opposing the unwinding of the filamentary material is provided by a device located internally of the hollow roll. An adjustable braking mechanism is provided to establish a first tension on the filamentary material and an additional tensioning force is applied to the filamentary material by a complementary tensioning arrangement.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: March 19, 1991
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventor: Jean-Louis Darrieux
  • Patent number: 4998942
    Abstract: A system to texturize partially oriented yarn in which the yarn is wrapped around a logarithmic spiral shaped hot draw pin to draw the yarn before the texturing thereof. The shape of the hot draw pin provides even distribution of normal force on the surface of the draw pin.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: March 12, 1991
    Assignee: Milliken Research Corporation
    Inventor: Charles F. Reinholtz
  • Patent number: 4972756
    Abstract: A simple braiding machine readily adaptable to a variety of braiding tasks comprises self-propelled bobbin carriers guided by a track consisting of interchangeable units similar to the interchangeable track units of a toy train. Also disclosed is a simple yarn tensioner capable of maintaining constant tension in the braiding yarn and capable of taking up slack yarn.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: November 27, 1990
    Assignee: University of Delaware
    Inventors: Guang-Wu Du, Timothy D. Kostar
  • Patent number: 4913374
    Abstract: This invention relates to a paying out device comprising, in the direction of unwinding of a filament, at least one wire clamp, an optional return pulley, a brake pulley and a sliding pulley mounted on one end of a dynamometer arm, the other end of which has a graduated sector with a mechanism for positioning the point of attachment of one end of the dynamometer spring. The opposite end of the spring acts on a system of regulating the braking torque. The dynamometer arm is mounted so as to occupy a working position substantially along one edge of the frame, while an output pulley is arranged with respect to the brake pulley and the arm such that, in the working position of the latter, the filament substantially forms a right angle between the brake pulley and the output pulley, passing through the pulley of the dynamometer arm in the working position.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 3, 1990
    Assignee: Altic S.a.r.l.
    Inventor: Marcel Gerest
  • Patent number: 4782988
    Abstract: An apparatus for feeding an elongate surface tape or a strip of piled, plushed or tufted textile along a predetermined path has a drive roller which has a multiplicity of wire bristles planted in its surface for releasable engagement with the strip. Disposed upstream of the drive roller with respect to a predetermined traveling direction of the strip, an idler roller is also provided with a multiplicity of wire bristles for releasable engagement with the strip. The idler roller is constantly braked to hold the strip under tension as it extends over the two rollers. The wire bristles on the rollers may be either straight or bent and may either extend radially of the rollers or be inclined in prescribed directions with respect to the traveling direction of the strip.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: November 8, 1988
    Assignee: Yoshida Kogyo K. K.
    Inventor: Hissai Nishiyama
  • Patent number: 4760992
    Abstract: A novel rope tension damper device is adapted to be installed, for example, at a location between a winch and the fairlead that guides the rope. The device comprises a co-planar pair of sheaves respectively mounted at opposite ends of a rotatable arm.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: August 2, 1988
    Assignee: Lockheed Corporation
    Inventors: George W. Peppel, Paul E. Sullivan
  • Patent number: 4660783
    Abstract: A yarn brake, particularly for textile machines, has a pivoted, low-inertia yarn drum that is wrapped several times by yarn in a slip-free manner in a yarn contact section and is non-rotatably secured to a low-inertia armature of a controllable electric motor which is driven by the moving yarn against its impressed sense of rotation.
    Type: Grant
    Filed: October 8, 1985
    Date of Patent: April 28, 1987
    Assignee: Gustav Memminger
    Inventors: Erich Roser, Gustav Memminger
  • Patent number: 4570874
    Abstract: A tensioning device of a coil winding machine which provides back tension to a wire fed from a wire supply source to a coil winding position through a main tension pulley and a back tension lever which is urged in the back tension applying direction by a spring and is swingably supported. The tensioning device comprises a first back tension spring having one end connected with the back tension lever, a second back tension spring having one end connected to a fixed position of the device, the spring constant of the second back tension spring being smaller than that of the first back tension spring, and means for connecting the first and second back tension springs. A control member is further provided, which fixes the connecting means so that in a first operating mode only the first back tension spring acts on the back tension lever and in a second operating mode the first and second back tension springs operate in series to control the back tension lever.
    Type: Grant
    Filed: October 3, 1984
    Date of Patent: February 18, 1986
    Assignee: TANAC Engineering Kabushiki Kaisha
    Inventor: Shuji Takeda
  • Patent number: 4526598
    Abstract: A filamentary gathering apparatus, apparatus for forming filaments into a gathered bundle of filaments, and a method of forming gathered filaments into a bundle of filaments according to the present invention result in a reduced tendency of the filaments and/or gathered filaments to wrap around the gathering apparatus. The gathering apparatus is a cylindrically shaped gathering shoe having a height much smaller than the diameter of the shoe and having an annular recess providing for a peripheral groove in the shoe. The groove has a plurality of holes extending radially toward the center of the gathering shoe and up the side of the groove. The apparatus for forming filaments has a fiber forming means, an applicator, one or more rotating gathering shoes and a winder mechanism. The one or more rotatable gathering shoes have the groove with radially extending holes.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: July 2, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Walter J. Reese, George T. Salego
  • Patent number: 4494752
    Abstract: A device for stringing tennis rackets and the like, and for tightening sagging strings, which, in the preferred embodiment comprises three rows of rollers clamped around two adjacent strings inside the racket frame. Each row of rollers is attached to the end of a lever. The levers are rockingly linked together so that the strings can be gripped and released between the rollers as desired. The rollers are mechanically coupled to each other by way of a series of intermeshing spur gears. A crank, attached to the gears, drives the rollers and allows adjacent rollers to rotate in opposite directions. Thus, two strings in gripping engagement with the three rows of rollers are pulled in opposite directions as the crank is turned.
    Type: Grant
    Filed: April 11, 1983
    Date of Patent: January 22, 1985
    Inventor: Lynn L. Ray
  • Patent number: 4456160
    Abstract: A guide device for tape-like recording media, especially a reversing guide device for magnetic tapes, that are transported at high speed, which comprises at least one guide roll, around whose periphery the recording medium is guided, and which is rotatably mounted in bearings, a deliberate specific braking torque being produced between the guide roll and its bearings. Further embodiments concern the roughness of the roll's peripheral surface, the design of flanges for the lateral guidance of the recording medium and the use of two guide rolls. The braking torque is produced by braking means acting on the guide roll. The novel guide device can be used advantageously in any high-speed magnetic tape transport apparatus for the recording/reproduction of any type of audio, video or data signal.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: June 26, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Schoettle, Andreas Ilmer, Joachim Flohr
  • Patent number: 4403744
    Abstract: A method and apparatus satisfactorily controls the tension of filamentary material during winding of the material into a layered package. In the method, filamentary strand is conveyed from a source to a rotating contacting means having a drive means to drive the contacting means during the contact in a direction opposite to the direction of movement of the filamentary strand or in a similar direction but at a slower velocity than the direction of movement of the filamentary strand. The filamentary strand during or after contacting the rotating contacting means is moved in a reciprocating traversing movement for collection on a rotating collecting means. The rotating collecting means provides the movement of the strand from the source to the collecting means and collects the strand into a package of strand.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: September 13, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Walter J. Reese, Jimmy D. Walker
  • Patent number: 4346551
    Abstract: A method and apparatus for obtaining packages for dying by twisting and winding processed yarns by a double twister. Between a double twisting spindle and a take-up roller disposed above, there are arranged a winding angle-adjusting device, a feed roller and a traverse device, recited from the side of the spindle. The high yarn tension on the side of the double twister is reduced by using the feed roller having a special structure to obtain a soft wound package.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: August 31, 1982
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Hideo Yanobu, Tadashi Tanaka
  • Patent number: 4333443
    Abstract: A compound bow, and a cabling system and eccentric for compound bows. Cable end terminals are adapted to be removably coupled together whereby to facilitate field disassembly. The bow has a pair of eccentric pulleys revolvably coupled at its opposite ends, over which a preferably segmented cable system is wound. The cable system preferably comprises a pair of pulley cables having a first end revolvably associated with a pulley and an opposite end adapted to be axially secured to the bow, a pair of string cables each having a first end revolvably associated with one of the pulleys and adapted to be selectively coupled to one of the pulley cable first ends and a second end terminating in a teardrop fitting, and a bow string extending between opposite bow limbs coupled to the teardrop fittings for propelling an arrow. Unique coupling members secured to ends of the pulley cables and the string cables enable them to be removably coupled together.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: June 8, 1982
    Assignee: Ben Pearson Archery Inc.
    Inventor: David Roelle
  • Patent number: 4277340
    Abstract: Disclosed is a liquid separation module of the spiral type which is produced by a simple apparatus requiring no manual operations, so that a mandrel is provided with a spirally and tightly wound layer arrangement consisting of a plurality of layer elements without any abnormal relative shifting between any layer elements, without the occurrence of wrinkles in any layer element and with uniform tightness of the winding along the radius of the wound layer arrangement. The layer arrangement is wound on the mandrel in such way that, while the layer arrangement is being wound on the mandrel by rotating the mandrel with the forward end of the layer arrangement fixed to the mandrel, a portion of the layer arrangement which has not yet been tightly wound is radially pressed just before coming into tight contact with the mandrel or with another portion of the layer arrangement which has been tightly wound, so that the degree of winding tightness is increased separated from each other.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: July 7, 1981
    Assignee: Toray Industries, Inc.
    Inventors: Naokatu Kanamaru, Kazuo Imai, Hisaaki Fujino
  • Patent number: 4242556
    Abstract: To provide constant tension on an electro-erosive electrode machining wire, tape or ribbon stretched in a working path between advancing rollers and pulling rollers, a tension loading arrangement, for example weights, springs, or the like, are applied to the wire to maintain the tension thereof at a constant value. The deflection of the wire, due to elongation thereof as a result of heating, differences in manufacturing technologies and the like, is sensed and fed back to the motors driving the advancing and pulling rotors to maintain the tension, as controlled by the motor torques and speeds at a uniform value.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: December 30, 1980
    Assignee: A.G. fur Industrielle Elektronik AGIE
    Inventors: Werner Ullmann, Bernd Schumacher, Herbert Ruh, Beat Kilcher
  • Patent number: 4120209
    Abstract: A clamping mechanism for temporarily clamping cables and the like for the purpose of tensioning or stressing such cables comprising a clamping wheel rotatably mounted at a carriage. A plurality of guide elements for the cable to be tensioned arranged about the periphery of the clamping wheel. These guide elements each comprise two clamping jaws. The clamping jaws of each pair can be pressed against one another by the force of spring means in order to fixedly clamp a section of cable disposed therebetween. Means controlled by the rotating clamping wheel are provided in order to release or eliminate the clamping action of the cooperating pairs of jaws for selectively receiving and releasing the cable at predetermined portions of the revolving path of travel of the clamping wheel. As control element there is employed a single large roller which is eccentrically mounted with regard to the axis of the clamping wheel.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: October 17, 1978
    Inventor: Kurt Vogt
  • Patent number: 4100943
    Abstract: A shuttle for ribbon looms comprises a housing and a bobbin rotatably supported in the housing for carrying a weft thread to be wound therearound. A tensioning device is provided in the housing for keeping the thread under constant tension while being unwound from the bobbin and running, the tensioning device including a frictionally rotatable roller around which the thread is wound, and means for adjusting the tension of the thread. A thread discharge eyelet is supported on the housing for discharging the thread therethrough out of the housing, the eyelet being located at the bottom of the housing and adjacent to the latter. The thread is directed from the bobbin through the tensioning device to the discharge eyelet.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: July 18, 1978
    Assignee: Yoshida Kogyo K.K.
    Inventors: Seiko Terada, Hissei Nishiyama, Masaatsu Oofusa
  • Patent number: 4063697
    Abstract: A device for reducing the otherwise minimum unthreading distance between the end of a bobbin and an unthreading guide in a textile yarn unthreading machine. The device comprises a member which defines a formed edge surface, preferably in the form of a circular disc, mounted substantially perpendicular to the axis of the bobbin and concentric with this axis. The disc is positioned between the bobbin and the unthreading guide to define a specially shaped, yarn supporting edge. The positioning of the disc is such that, as the yarn passes over the edge of the disc while being unwound, the angle formed by the straight line which joins the edge of the disc and the facing edge of the bobbin relative to said axis is equal to the half-angle of unthreading. Further the angle formed by the straight line which joins the edge of the disc to the unthreading guide, relative to the said axis, is markedly greater than the half-angle of unthreading.
    Type: Grant
    Filed: September 21, 1976
    Date of Patent: December 20, 1977
    Assignee: ASA S.A.
    Inventor: Jean Venot
  • Patent number: 4058245
    Abstract: A rotating yarn control element comprises a hub portion with a number of pins spaced around the periphery of the hub portion to define for the yarn a zig-zag path which degenerates with increasing distance from the axis of rotation of the element into a line path lying in a reference plane of the element. In use, with the element rotating about its axis and the yarn passing through the path defined by the guide surfaces, the total area of contact between the guide surfaces and the yarn will depend on the distance of the yarn from the axis of rotation of the element. This in turn determines whether the element operates in the "freewheeling" mode, the "positive grip" mode or the "yarn metering" mode. Other embodiments are described in which the element is formed by an injection moulding technique and the zig-zag path is presented by tooth like projections or by a channel in a drum member. A means for varying the amount of wrap around the element is also described.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: November 15, 1977
    Assignee: National Research Development Corporation
    Inventors: Francis Neil Hurt, Reginald Theaker, David Herbert Plant
  • Patent number: 3999724
    Abstract: In a yarn tensioning device, two abutting rolls in rotatable engagement at their peripheries have a yarn passed therebetween or around one of the rolls. A resilient covering of at least one of said rolls deforms because of such resilient covering peripherally engaging the other roll. The rolls are rotatably driven by pulling the yarn between the rolls, or around one of the rolls which may be mounted on ball bearings or the like. The inter-roll pressure effected at the peripheral areas of mutual engagement may be regulated by having one roll movable transversely to its axis of rotation and thus, the tension imparted to the yarn pulled between the rolls or over one of the rolls may be regulated accordingly.
    Type: Grant
    Filed: December 18, 1974
    Date of Patent: December 28, 1976
    Assignee: Hacoba-Textilmaschinen GmbH & Co. KG
    Inventors: Theodor Haring, Hans Theihsen, Hans Gunther Butterman
  • Patent number: 3993234
    Abstract: A reel for feeding cloth in rope form is provided that employs a plurality of spaced vanes radially arranged in alternately inclined relation so that their projected profiles cross intermediate their length and the outer vane edges are formed with a gently undulating configuration beyond such crossing for particularly effective feeding action.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: November 23, 1976
    Assignee: Gaston County Dyeing Machine Company
    Inventors: Christoph W. Aurich, James Keith Turner, William Cleere Sturkey