Abstract: A device for tensioning of a rope, the device comprising two or more sheaves (6, 6?), each sheave (6, 6?) being operated by a motor (7, 7?), where a rope (10) to be tensioned may be arranged so that it sequentially rests against the contact surface of the sheaves of the device. The sheaves (6, 6?) are arranged in pairs on a rotatable support (2), where the axes of rotation of the sheaves and the turntable are substantially parallel. The sheaves have a first position in which the rope (10) may pass unhindered between the sheaves (6, 6?) of the pair, and be rotated by said support (2) to second position in which the rope (10) has been wound to a substantial contact angle about the sheaves.

Abstract: An automatically-adjusting tensioning mechanism for use in a roll-fed web media transport system, the tensioning mechanism adding tension to the web media, comprising a bracket assembly being adapted to freely pivot around a pivot axis, and first and second tensioning shoe having curved surfaces attached to the bracket assembly. The web media feeds through the tensioning mechanism in an S-shaped media path where the web media is wrapped around the first and second tensioning shoes. The pivot angle of the bracket assembly automatically adjusts in response to differences in a coefficient of friction between the web media and the tensioning shoes such that the tension in the web media has a reduced level of variability relative to configurations where the bracket assembly is held in a fixed position.

Abstract: A device for tensioning of a rope, the device comprising two or more sheaves (6, 6?), each sheave (6, 6?) being operated by a motor (7, 7?), where a rope (10) to be tensioned may be arranged so that it sequentially rests against the contact surface of the sheaves of the device. The sheaves (6, 6?) are arranged in pairs on a rotatable support (2), where the axes of rotation of the sheaves and the turntable are substantially parallel. The sheaves have a first position in which the rope (10) may pass unhindered between the sheaves (6, 6?) of the pair, and be rotated by said support (2) to second position in which the rope (10) has been wound to a substantial contact angle about the sheaves.

Abstract: Provided are a transport apparatus and a printer capable of transporting a recording medium with no slack even when a disturbance or the like has occurred, and maintaining horizontal attitudes of tension bars, as well as easy loading of the recording medium and easy placing of the tension bars after the recording medium is loaded. The tension bars apply tensions in a transport direction and in a direction perpendicular to the transport direction to the recording medium in a roll shape that is fed from a feeding roll and wound up onto a take-up roll. Accordingly, predetermined tensions are applied to the recording medium. Before the recording medium is loaded, the tension bars are supported at retrieval positions, respectively, and the respective tension bars are placed at predetermined positions after the recording medium is loaded, with the result that the recording medium may be loaded with ease.

Abstract: A cable brake system for deployments of cable comprising: a frame configured to be mounted on a ship; a repeater supporting track mounted longitudinally to the frame, the supporting track being configured for slidingly supporting a plurality of repeaters; a spool positioned exterior to the frame, the spool having the cable wrapped therearound and being capable of supplying the cable to an interior of the frame; at least one planar surface on an interior of the frame, the planar surface being positioned approximately parallel to the repeater supporting track; and a plurality of brake sub-assemblies being supported by the planar surface in a manner so as to establish a serpentine path for the cable and to impart variable frictional resistance to the cable.

Abstract: A tensioning device is described for mounting between a knotter and a twine supply roll in a baler. The device comprises a spring biased tensioning arm 210 for taking up slack in the twine 216 and a clamp 220 for gripping the twine 216 at a location between the tensioning arm 210 and the supply roll. In the invention, the clamp 220 is coupled to the tensioning arm 210 in such a manner that the force applied by the clamp 220 to grip the twine 216 varies with the position of the tensioning arm 210.

Abstract: The tension is modulated by a weft-braking device controlled by a tension control block programmed for comparing the measured tension with a reference tension, and for transmitting a braking level signal to the weft-braking device, which braking level signal is adapted to minimize the difference between the measured tension and the reference tension. The yarn consumption speed is calculated, then the yarn consumption speed is compared with a predetermined threshold speed, and if the calculated consumption speed overcomes the predetermined threshold value, the tension control block is enabled, while, if the calculated consumption speed is lower than the threshold value, the tension control block is disabled and the last signal generated by the latter is maintained as braking signal, until the yarn consumption speed overcomes again the threshold value.

Abstract: Apparatus monitoring and/or adjusting tensile force in a yarn (10) including at least three consecutive yarn deflecting elements (11, 12, 13) of which the central deflecting element (12) is displaceably held by a retention device (14) that is supported in such a way that the motion and/or position of the deflecting element (12) is substantially a function only of the tensile force F1 in one yarn segment, such segment being situated between the displaceable deflecting element (12) and only one of the two neighboring deflecting elements (11 or 13).

Abstract: The present invention is an apparatus for applying high tension to strap in an automatic strapping machine. A rotatable frame has a first and a second position. Two driving wheels are mounted on the frame. In the first position of the rotatable frame, strap passes freely through a gap between the two driving wheels to allow feeding of the strap around an object and take-up of excess strap. In the second position of the rotatable frame the strap frictionally engages the periphery of the two driving wheels. Rotation of the two driving wheels when the rotatable frame is in the second position places high tension on the strap.

Abstract: A traveling yarn tension compensating system having a pair of vertically disposed, horizontally spaced ball-type yarn tensioning units and a yarn tension compensating device disposed therebetween. The device has a yarn engaging element with a yarn engaging surface that is downwardly convex for engaging a yarn thereunder. The surface is fixed so as not to rotate or otherwise move in the direction of travel of the yarn and is made of a material that imposes a tension increasing frictional drag on the traveling yarn. The surface engaging element is mounted to be freely movable vertically in response to tension in the traveling yarn. The convex shape of the yarn engaging surface results in a greater extent of surface engagement of the yarn when the surface engaging element is in a lower position resulting from lesser tension in the yarn and at which position it deflects the yarn downwardly over the yarn guides.

Abstract: An optical fibre tensioning device, receiving at its input an optical fibre from a traction device and capable of supplying the optical fibre from its output to a device for storing the fibre. The tensioning device comprises at least one fixed pulley on which the optical fibre is wound for a first length, and at least one movable pulley on which the optical fibre is wound for a second length. A device for measuring the tension applied to the fibre and a motorized device for moving the movable pulley interact with each other to control a distance (Dp) between axes of the pulleys in such a way as to automatically keep the tension applied to the fibre essentially constant.

Abstract: The invention relates to a method of winding optical fiber onto a spool. The method includes varying a target, tension applied to a fiber as the fiber accumulates onto the spool such that the percentage change in lateral load is greater than about −3.4% for each change of about 0.25″ in pack radius. The method also includes varying the target tension such that the change in lateral load per change in pack radius includes an amount greater than about −18.0 N/m2. Additionally the invention includes varying the target tension applied to the optical fiber as the fiber accumulates onto the spool, such that the target tension applied to the fiber at the end of winding fiber onto the spool is at least about 0.1% or greater than the target tension at the start of winding fiber onto the spool.

Abstract: An apparatus for controlling the tension of a traveling yarn includes a rake tensioner having stationary and displaceable yarn tensioning elements in engagement with the traveling yarn, and an electrical coil to which electrical current is supplied by a regulating device. The displaceable yam tensioning elements and the electrical coil are disposed on a common pivot lever. The electrical coil is pivotable in an air gap through which magnetic field lines pass. The tension of the traveling yarn is controlled as a function of the current supplied to the electrical coil. The present invention, thusly, improves the control of the tension of the traveling yarn in spinning or bobbin winding machines.

Abstract: A rope system includes an endless rope, a measuring device and a rope cutter. The endless rope is configured to travel through a machine, while the endless rope is under tension. The measuring device is used to measure the tension in the endless rope. The rope cutter is positioned to sever the endless rope if the tension exceeds a predetermined value.

Abstract: A dancer roll device has a support assembly that supports a roll. A ball screw is rotatably mounted on the support assembly. A weight member is mounted on the ball screw by a nut member that is threaded over the ball screw. When the ball screw is rotated about its own axis by a motor, the nut member and the weight member are displaced along the ball screw, thereby displacing the center of gravity of the support assembly. The moment applied to the roll is changed, thus changing the tension that is applied to a wide web or a narrow web via the roll.

Abstract: A wire brake for use with automatic wedge bonding machines which have cutting pliers arranged behind the associated bonding tool and movable along the bonding wire for detaching bonding wire from the open pliers. The wire brake includes guiding members having a plurality of deflectors that can be applied to the bonding wire, the guiding members having two planes from which the bonding wire can be laterally deflected. A central deflector is provided for deflecting the bonding wire from the planes. The central deflector projects between the two planes for guidance of the bonding wire and is displaceable transverse to the longitudinal extension of the bonding wire. Additional guiding members are arranged opposite the planes such that the bonding wire rides between the central deflector and the additional guiding members when the bonding wire is deflected.

Abstract: Systems, methods and apparatus for winding conductive wires for a stator of an electric motor. In one embodiment, a hysteretic tensioning apparatus is utilizing to substantially stabilize tension in a conductive wire supplied to a winding machine. The hysteretic tensioning apparatus includes a support member, a brake member, and four idler arms. The brake member is rotatably mounted to the brake member and configured to engage the conductive wire. The idler arms each are spring mounted to the support member and also are configured to engage the conductive wire. The conductive wire is extended across the support member so that it extends between adjacent idler arms and the brake and is inserted into the winding machine.

Abstract: Device for modulated braking of a weft yarn for textile machines, comprising a set of three yarn guiding eyes, which form a straight path for the yarn, and an oscillating lever, which is connected to a U-shaped braking, element which straddles a central eye of said eyes and engages the yarn in free portions that lie between said central eye and the end eyes of said eyes in order to divert its straight path for braking, wherein the oscillating lever is controlled by an electromagnetic actuation means which comprises at least one permanent magnet which is constituted by a cylindrical body having a N-S polar axis arranged radially; the body is associated with a stem which is articulated to the oscillating lever and can move in a linear fashion inside a cylindrical shroud with high magnetic permeance, on which at least one coil is wound, an excitation current flowing through the coil; is the axis of the cylindrical shroud, which coincides with the axis of the movable stem, being perpendicular to the polar axis of