Abstract: Apparatus for producing bent multi-sided pultruded fibre reinforced plastic reinforcement bar for concrete (commonly known as FRP rebar) comprises multiple resin wetting stages to simultaneously resin impregnate multiple bundles of fibreglass rovings continuously drawn through the resin wetting stages, multiple spiral winding stages arranged to spiral wind warps around the multiple wet rovings, and multiple rotating multi-sided former frames for continuously winding thereon the multiple wet rovings and holding the multiple rovings while curing. A related method is also claimed.

Abstract: A radio communication apparatus includes a first antenna, a second antenna, a third antenna, and a processor that varies a phase difference between a first signal transmitted from the first antenna and a second signal transmitted from the second antenna, measures a received power pattern of a synthesized signal of the first signal and the second signal that is received by the third antenna, and adjusts a phase shift of a signal that is transmitted from the first antenna or the second antenna, based on a difference between the measured received power pattern and a received power pattern obtained by calculation.

Abstract: A composite reinforcing bar is formed by providing a reinforcing material supply of fiber strands ravings; a resin supply bath, and a puller for pulling the resin-impregnated reinforcing material through the resin bath. The material is wound on a helical holder, while the resin remains unset, rotated about its axis on a drive system so that the material is wrapped the holder which is indexed along it axis and removed when full for curing the resin on the holder while the body remains wrapped thereon. The bar is wrapped with the turns side by side and is then stretched out and held by longitudinal straight bars while the reinforcing structure so formed is embedded in a cast material.

Abstract: A method is presented for making a composite material from strips comprising longitudinal fibers and a binder or resin, which material comprises a number of layer assemblies one on top of the other. Each layer assembly comprises m sets (with m at least 2) of parallel strips each extending in a different direction, Each layer assembly is manufactured by successive steps of depositing groups of parallel strips according to a well defined pattern (without longitudinally interweaving strips with previously deposited strips). Before completing a layer assembly, with the exception of the last layer assembly, by depositing its last group of parallel strips, the first group of parallel strips of the following layer assembly is already deposited. A composite material manufactured with such a method is presented too.

Abstract: A support comprising a handhold in the center with two ends extending straight out in opposite directions away from the handhold for winding and storing a rope or cord in a secure condition in a figure-8 configuration around the ends of the support using a flexible tie affixed at one end to the center of the support to wrap around and secure the rope or cord to the support when the other end of the tie is fastened to a cleat located in the center of the support. A method of winding and releasing a line on the support.

Abstract: A polyester monofilament package is formed by reeling a polyester monofilament comprising polyethylene terephthalate and satisfies all of the following requirements (a) to (d): (a) the coefficient of dynamic friction between yarns of the polyester monofilament being 0.13 ?d or less; (b) the package end being in a tapered shape with a taper angle (0) of 75° or less; (c) the variation gradient in unreeling tension (AT) being 0.02 cN/dtex-m or less; and (d) in a part of a reeling thickness of 1 mm in the inner layer of the package, the variation in contraction stress of the polyester monofilament being 3.0 cN/dtex or less.

Abstract: A composite reinforcing bar is formed by providing a reinforcing material supply of fiber strands rovings; a resin supply bath, and a puller for pulling the resin-impregnated reinforcing material through the resin bath. The material is wound on a holder, while the resin remains unset, rotated about its axis on a drive system so that the material is wrapped around a plurality of bars at spaced positions around the axis such that the fed length of the body is wrapped from one bar to the next to form bent portions of the body wrapped partly around each bar and straight portions between the bars. Each bar has angularly grooves which are shaped to mold the bent portions to a required bent shape. The holder is indexed along it axis and removed when full for curing the resin on the holder while the body remains wrapped thereon.

Abstract: A polyester monofilament package is formed by reeling a polyester monofilament comprising polyethylene terephthalate and satisfies all of the following requirements (a) to (d): (a) the coefficient of dynamic friction between yarns of the polyester monofilament being 0.13 ?d or less; (b) the package end being in a tapered shape with a taper angle (0) of 75° or less; (c) the variation gradient in unreeling tension (AT) being 0.02 cN/dtex-m or less; and (d) in a part of a reeling thickness of 1 mm in the inner layer of the package, the variation in contraction stress of the polyester monofilament being 3.0 cN/dtex or less.

Abstract: A support comprising a handhold in the center with two ends extending straight out in opposite directions away from the handhold for winding and storing a rope or cord in a secure condition in a figure-8. configuration around the ends of the support using a flexible tie affixed at one end to the center of the support to wrap around and secure the rope or cord to the support when the other end of the tie is fastened to a cleat located in the center of the support. A method of winding and releasing a line on the support.

Abstract: A manufacturing method of a rotor of and AC generator for a vehicle according to the invention includes the steps of applying a fluid resin material to a conductor immediately before the conductor is wound on a spool, and heating the entire structure to cause the resin to be heat-cured after the conductor to which the fluid resin material has been applied is wound around the spool in multi-rows and multi-layers.

Abstract: A tape package comprises a coreless body formed from a plurality of spirally wound layers of tape that define the package body with an outer diameter and a traverse length. The spirally wound layers of tape extend axially along the traverse length of the package body and include a number of spiral windings of tape in each layer. The package body permits lengths of tape to unwind from along its interior and to pay-off laterally through an egress area or opening in a sidewall of the package body with little residual twist. In one configuration, the package body has the same given number of spiral windings of tape along each side of the egress area or opening. Any twisting occurring along a length of tape unwinding from along the package body interior in a first direction on one side of the egress area or opening is accommodated or substantially reduced by any twisting occurring along the length of tape unwinding in a reverse direction on the other or opposite side of the egress area or opening.

Abstract: A composite reinforcing bar is formed from a series of inner rovings with first and second helical wrappings of at least one roving wrapped around the inner rovings in opposed directions of wrapping with the resin permeated therethrough. The bar structure is formed to allow torsional bending sufficient to allow the formed bar to be wound to form a coil of the bar wrapped a series of times around an axis at right angles to the length of the bar. The bar is forwarded into a rotating winding frame formed by a series of posts around a vertical rotation axis. The coil is held in place while the frame is removed for transporting the coil to a remote location. At the remote location the coil is placed in a similar winding frame and the bar is pulled from the coil and cut to a required length.

Abstract: An apparatus for managing lengths of flexible elongate elements between two fixed points has a single spool with a track of predetermined width sufficient for winding alternate turns of the elongate element about opposite side regions of the track in a folded figure eight pattern. A first turn of the elongate element is wound about a first side region of the track, then the element is crossed over to the second side region of the track and a second turn is wound about the second side region of the track. The elongate element is crossed back over to the first side region and a third turn is wound about the first side region. The process is repeated until at least the majority of the slack between the fixed points on the element has been taken up.

Abstract: A level wound coil (LWC) having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on a mount surface. The shift section has the k-th shift section on inner layer side and the (k+1)-th shift section on outer layer side, where a start point of the (k+1)-th shift section does not transit, relative to a start point of the k-th shift section, to a winding direction of the pipe.

Abstract: A level wound coil (LWC) having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on a mount surface. The shift section has the k-th shift section on inner layer side and the (k+1)-th shift section on outer layer side, where a start point of the (k+1)-th shift section does not transit, relative to a start point of the k-th shift section, to a direction reverse to a winding direction of the pipe. A length of the shift section that does not transit to the reverse direction is controlled.

Abstract: A level wound coil (LWC) having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on a mount surface. The shift section has the k-th shift section on inner layer side and the (k+1)-th shift section on outer layer side, where a start point of the (k+1)-th shift section does not transit, relative to a start point of the k-th shift section, to a winding direction of the pipe.

Abstract: A level wound coil (LWC) mounted on pallet having; an LWC having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding; and a pallet on which the one or more LWC is mounted or on which the one or more LWC is mounted through a cushioning material. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on the mount surface. A start point of a (k+1)-th shift section does not transit, relative to a start point of a k-th shift section, in a reverse direction to a winding direction of the pipe. The pallet or the cushioning material has a recessed area that is formed at all or a part of a portion of the pallet or the cushioning material to face the (k+1)-th shift section not transiting in the reverse direction.

Abstract: A level wound coil (LWC) having a plurality of coil layers each of which has a pipe wound in alignment winding and in traverse winding. The LWC has a shift section where the pipe is shifted from the m-th coil layer to the (m+1)-th coil layer on a bottom surface thereof when the LWC is disposed on a mount surface. The shift section has the k-th shift section on inner layer side and the (k+1)-th shift section on outer layer side, where a start point of the (k+1)-th shift section does not transit, relative to a start point of the k-th shift section, to a winding direction of the pipe.

Abstract: A method for calibrating a phased array antenna comprises performing initial measurements of array antenna elements to ensure that calibration measurements are within the linear dynamic range of receive elements contained within the array. The method includes deriving calibration coefficients from a direct measurement of a forced out of phase condition and detection of deep nulls through adjustment of amplitude and phase settings over a range of frequencies of interest.

Abstract: A fiber optic sensing coil is formed by winding a non-coated optical fiber in a substantially circular loop. The non-coated optical fiber includes a core and a cladding. Once the non-coated optical fiber is wound, turns of the non-coated optical fiber are fused so that the cladding of the individual turns of the optical fiber are fused to one another at points of mutual contact.

Abstract: An apparatus and method is disclosed for winding a web about a central axis and a rotating mandrel to form a roll. A rolled web product with an alternating winding pattern may be manufactured. A feeding mechanism provides a running web to be wound into a roll. A retainer assembly may be configured for holding the web as it is wound upon the rotating mandrel. The retainer assembly may be configured to accommodate oscillating movement of the rotating mandrel between a clockwise and a counterclockwise direction. The web may be placed upon a roll by winding in one direction and then back again in a second direction repeatedly to form a roll. Retaining means, such as paddles, may be actuated from an active position in contact with the web to a resting position removed from the roll. Paddles may serve to hold the web upon the outer surface of the roll at the time in which the rotating mandrel is changing rotational direction.

Abstract: A method of winding an optical fiber on a reel, utilizing the optical fiber having the following characteristics: effective area is larger than 50 &mgr;m2, zero dispersion wavelength is outside a range of 1530-1565 nm, absolute value of the dispersion value in the entire wavelength range of 1530-1565 nm is in a range of 2-14 ps/nm/km, and bending loss at a 1550 nm-wavelength is in 1-100 dB/m when wound at a diameter of 20 mm, and the reel with a barrel diameter of 100 to 200 mm; and winding the optical fiber on the reel with satisfying d<p<2d and 0.004≦(2T/D)≦0.007, wherein d is a coating outer diameter of the fiber (mm), D is a barrel diameter (mm), T is a winding tension (N), and p is a winding pitch (mm).

Abstract: The invention relates to a yarn package provided on a yarn package holder, such as a tube, wherein the yarn is at least partly unstable, such that a variation in the yarn tension results in a rotational movement thereof, characterized in that, the position of the yarn in the yarn package is controlled by the direction of the rotation of the yarn.

Abstract: A device is disclosed for winding an optical fiber. The device includes a mandrel that is connected to a brace. In an operative mode, the brace engages a stabilizer and the stabilizer is releasably fastened to an optical fiber storage assembly. The stabilizer can be releasably fastened to a spool, a hub, or a tray.

Abstract: By using carbon fibers having a fineness of 25,000 deniers or more, the present invention provides a carbon fiber package including a cheese winding package or a coreless package in which an outside diameter of the package, a diameter of a bobbin or an inside diameter of the package, and a winding width are regulated in the specific ranges, a square-end type package in which a yarn width per fineness, wind angles at the start of winding and at the end of winding, and shifting of the yarn are regulated in the specific ranges, and a carbon fiber packed member in which an average bulk density is regulated in a specific range. Those carbon fiber packages and the carbon fiber packed member solve troubles and inconveniences during use, and also packages which have a high winding density and which do not break easily can be obtained.

Abstract: A magnet wire having generally round cross section is taken out from a wire pack and formed by a forming roller mechanism into a polygonal shape in cross section to be wound on a bobbin tightly, thereby increasing the space factor of a coil. Then, magnet wire having round cross section is wound in a portion where pressure may be applied from the outside. Since the round wire is easy to move and able to dodge the pressure, a reliable coil of a high space factor can be obtained.

Abstract: In a optical fiber coil arrangement for use in rotation sensors, for example, axial and/or radial errors can be reduced or substantially eliminated by employing trimming lengths of the first and second ends of the optical fiber used to wind the coil. The first and second ends are spatially separated from one another so as to reduce such errors. The trimming lengths may be in the form of trimming turns. To eliminate axial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in an axial direction. To eliminate radial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in a radial direction. Radial and axial compensation may be combined.

Abstract: In a optical fiber coil arrangement for use in rotation sensors, for example, axial and/or radial errors can be reduced or substantially eliminated by employing trimming lengths of the first and second ends of the optical fiber used to wind the coil. The first and second ends are spatially separated from one another so as to reduce such errors. The trimming lengths may be in the form of trimming turns. To eliminate axial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in an axial direction. To eliminate radial errors, the first end is formed into a first number of trimming turns and the second end is formed into a second number of trimming turns so that the first and second number of trimming turns are spatially offset from each other in a radial direction. Radial and axial compensation may be combined.

Abstract: An annular coil assembly includes a multi layer coil having a wound-over portion in which an upper winding layer is wound over a lower winding layer, and a non-wound-over portion in which each turns of the upper winding layer is housed between two adjacent turns of the lower winding layer. The ratio of plastic deformation of the wire in the wound-over portion and adjacent areas thereof is less than that of the wire in the non-wound-over portion.

Abstract: In a optical fiber coil arrangement for use in rotation sensors, for example, errors resulting from axial and/or radial time varying temperature gradients can be minimized or substantially eliminated by employing reverse quadrupoles for the sensor coil. One of the quadrupoles is wound in a + - - + winding configuration. However, the next adjacent quadrupole is wound in a - + + - winding configuration. This reverse quadrupole arrangement substantially eliminates radial time varying temperature gradient dependent errors and reduces axial time varying temperature gradient dependent errors. The axial time varying temperature gradient dependent errors can be substantially eliminated by winding a reverse octupole arrangement. Accordingly, a reverse octupole arrangement is wound with a + - - + - + + - - + + - + - - + winding configuration.

Abstract: An optical fibre storage system comprising a container in which turns of fibre (4) are wound in a substantially helical formation, the diameter of the turns and container being such the turns of fibre are maintained in position by their natural resilience pressing them outwardly against the inside of the container (5). The inside of the container may be coated to aid location of the turns. In another embodiment an inflatable member located within the turns is inflated to press against them to aid positional stability. A source of gas may be connected to the container to enable propulsion of the fibre out of the container in a duct, or the container itself may be pressurized.

Abstract: A bobbin-type winder for winding a synthetic yarn at a constant speed is disclosed. The winder includes a bobbin shaft having a bobbin mounted thereon and a bobbin shaft driving apparatus, operably connected to a first inverter, for rotating the bobbin shaft. The winder further includes a traverse device for traversing the yarn supplied to the bobbin, and a contacting roll arranged such that it is movable into contact with the circumferential face of a yarn package wound on the bobbin. The contacting roll is driven via a second inverter and a rotational speed detector is provided for detecting the rotational speed of the contacting roll. A controller is electrically connected with the bobbin shaft driving apparatus and the rotational speed detector for controlling the rotational speed of the bobbin shaft in accordance with the detector rotational speed of the contacting roll.

Abstract: A deep nested filament winding includes a groove formed in a winding spool. The groove is disposed to provide an overall winding pitch about equal to the diameter of the filament multiplied by the square root of three (3).

Abstract: A method for making an Airspring and Sleeve that each have a chamber portion and rolling lobe portion reinforced with successive layers of embedded cord by winding cord in one layer at opposite helical angles from cord of a second successive layer and winding cord at inconstant helical angles in an annular band portion of at least one of the sleeve portions.

Abstract: An optical fiber coil is formed by winding successive loops of a fiber in a toroidal helix to form a self-supporting ring. No coilform or adhesives are necessary, resulting in relaxed boundary conditions at the outside of the fiber jacket, and in an overall reduction of thermally-induced strain, as compared to existing coil constructions. One low-stress mounting includes a trellis or spoke-like frame structure which frictionally supports the coil about its circumference. Another mounting includes a bouyant bead support structure. In a third mounting, a filament suspends the coil from a frame. The coil may be suspended within an isothermal enclosure to further reduce thermal effects.

Abstract: A method of winding optical fiber on a bobbin comprising alternately winding in one direction around the bobbin compact and crossover layers. Each compact layer extends axially of the bobbin from a start end proximate one end of the bobbin to a finish end proximate the other end of the bobbin and includes a plurality of fiber turns in virtual axial contact with each other which define generally parallel grooves in the surface of the compact layer. The turn defining the start and finish ends of each compact layer is aligned with a respective start and finish set-back groove in the surface of the immediately preceding compact layer axially spaced from the respective start and finish ends of the preceding compact layer.

Abstract: The invention relates to a method whereby wire is coiled conically on to a spool. The spool has at least one conically formed flange. The number of windings per layer is gradually increased during the coiling operation.

Abstract: The wire coil wound to a variable diameter which is packaged onto a display backing in the form of a card (3) has groups of turns of different diameters which are stacked by being overlapped according to an increasing or decreasing diameter pattern meeting the relation E=D.sub.o .+-.2 n .phi. where E is the increasing or decreasing winding, D.sub.o is the initial coil diameter, n is a positive integer and .phi. is the wire diameter.

Abstract: A rigid core for a textile yarn package particularly for dyeing is cylindrical in shape, corrugated over the whole outer peripheral surface corresponding to the package, and has a part situated at one end which is provided with a groove, incorporating perforations of a maximum diameter of 2 millimeters, which is intended for forming a yarn reserve, a central part perforated with tapered orifices, wider at the outer surface than the inner, with an angle of taper, relative to the axis of the respective orifice, being between 2.degree. and 80.degree., preferably between 20.degree. and 70.degree., and two interengably shaped ends to permit the fluid-tight nesting of the cores on each other during the dyeing.The method of using such a yarn package in which a textured continuous polyester yarn is reeled at a speed of between 400 and 1,000 m/min.

Abstract: A package of tape is formed with flanged portions built up at the ends and a central helical traverse portion. The flanged portions are effectively formed by a plurality of separate spiral windings each of which is interlocked with each other and the central traverse portion. The central portion is formed from a plurality of helical traverses with reversal positions slightly inside the inner edge of the flanged portions. Either the central traverse portion or the flanged portions is built up first to form a step following which the other is built up to meet the step. The step cannot be so high that the tape cannot traverse the step. The extreme ends of the package is thus formed by the stable spiral windings while edge drop-off from the ends of the traverse portion is limited to height of the last helical traverse.

Abstract: Elongate materials such as slide fastener stringer tapes are discharged in circular motions into a storage container by a tape guide pipe guided by a pipe guide rotatable in composite circular motions along successive first circular paths while revolving along a second circular path. The elongate materials thus discharged are piled up in an orderly manner in the storage container so that they can be picked up at a later time without being entangled with each other. The pipe guide may be rotated in the composite circular motions by a link mechanism, a gear-turntable assembly, or a planetary gear assembly.

Abstract: A method and apparatus for producing a ribbon free randomly wound yarn package is disclosed, and wherein a plurality of critical winding ratios at which undesirable pattern formations or ribbons would normally occur are determined and stored in a microprocessor control unit. During the winding operation, the spindle speed and traversing frequency are monitored by sensors and are transmitted to the control unit, and the control unit computes the optimum time for rapidly changing the traversing frequency so that the actual winding ratio moves rapidly through each of the approaching critical winding ratios. The original traversing frequency is re-established after having passed beyond each of the critical winding ratios.

Abstract: A ball of hand knitting yarn is formed by winding the yarn in an overlapping constantly progressing angular winding to form a partial sphere, thereafter continuing the winding by applying a plurality of turns of said yarn in substantially parallel circumferential turns about substantially a central equator of the ball and subsequently finishing the winding with a plurality of overlapping progressively angled windings so as to hide the circumferential turns.

Abstract: A package for multiple strands of surgical sutures which provides for delivery of individual suture strands. The several sutures are contained within a single compartment of the package, with each suture being individually wound in the form of a coil comprising a series of convolutions, each convolution being laterally displaced from adjacent convolutions and disposed in sequence over the length of the suture. Each individual suture within the package compartment is laterally displaced from adjacent sutures in a contiguous, partially overlapping relationship. The desired suture coil configuration and positioning within the package compartment is conveniently obtained by sequentially winding individual sutures around two vertical winding pins in an upwardly spiraling pattern, with successive loops of each suture and successive sutures being displaced laterally along the pins.

Abstract: A process and apparatus for winding a yarn or thread on a reel or bobbin by way of a reciprocating yarn or thread guiding device, and which comprises a pair of settable counters driven by the bobbin or reel basket drive. After a predetermined number of revolutions of the bobbin or reel basket has been counted by one of the counters, the reciprocating guiding device is operated so as to decrease the width of the yarn or thread layers wound on the reel or bobbin and at the same time start the second counter which, after a predetermined number of revolutions, shuts off the reel basket drive.

Abstract: A method and apparatus for laying continuous pipe particularly for offshore oil installations and wherein said continuous pipe is pre-formed into flat spirals of pre-selected inner and outer diameters depending upon available handling equipment and arranged in stacks in which each flat spiral is interconnected with the adjacent flat spiral. A stack of flat pipe spirals is positioned on a power driven rotatable pipe spiral carrier mounted on a deck of a pipe laying vessel. Pipe is withdrawn from the stack of spirals by rotating the pipe carrier and moving the pipe through pipe straightening and tensioning means, after which the pipe is fed to suitable pipe laying means for connecting the pipe to subsea installations.