Abstract: A method and apparatus for making a composite component. For making a non-cylindrical composite component such as a nozzle, a longitudinal winding of at least one fiber strand impregnated with resin is applied onto a generally cylindrical mandrel at a predetermined angle relative to a line parallel to the mandrel rotational axis. A transverse tape is then spirally cut from the layer and wound onto a component mandrel. The wound transverse tape is then compacted and cured and the mandrel removed. A nozzle exit cone is also disclosed made from such transverse tape so that the fiber strand portions are short enough that they do not follow the curvature of the nozzle and thereby peel. The windings are shingled onto the nozzle exit cone so that only one end of each of the fiber strand portions is exposed to the nozzle surface. The fiber strand portions are oriented at a predetermined angle which may be optimized for erosion resistance and stress requirements.

Abstract: The invention provides apparatus for manufacturing pile fabrics, a method of using the apparatus and pile fabrics produced by the method. The apparatus is particularly suitable for use in the production of pile fabrics incorporating natural woollen fibers by adhesion of a series of courses of wool fiber to a backing sheet of appropriate material.

Abstract: This invention concerns the manufacture of a layer of elastomeric material to form part of a pneumatic tire, and the manufacture of a reinforced elastomeric layer.According to the invention a layer of elastomeric material is formed as a progressive helical winding along a mandrel. The layer may be transferred in cylindrical form to a tire carcass building former to constitute an inner lining for a tire carcass, or a reinforcement filament may be wound over the layer producing a cylindrical reinforced layer which is cut to produce a ply of coated fabric.

Abstract: A method for producing a composite structural beam, particularly a sine wave beam, is disclosed utilizing as an essential feature, the bonding of the junctures of the sine wave web to the opposite flange areas of the beam with a fibrous braided material. The braiding is carried out during assembly of the composite web and composite flange components, prior to curing the components. In one embodiment the braided material extends along the entire height of the web, as well as along the flange areas, and is bonded thereto. In another embodiment the braided material does not extend along the entire height of the web, but only along the opposite edge portions of the web adjacent the junctures thereof with the flanges, the central portion of the web having no braided material applied thereto.

Abstract: A method of constructing a collapsible mandrel for use in fabricating filament wound vessels or tanks includes the steps of preparing a rigid mandrel and supporting the mandrel on a rotatable axle, applying one or more layers of strips of rubber longitudinally on the mandrel to form an enclosure, applying coats of rubber solution over the layers, winding a layer of fibers over at least one of the layers, and curing the rubber layers. The layers are cut into two parts, removed from the rigid mandrel, and rejoined by using reinforcing straps along the seam of the joined parts. The collapsible mandrel may be used to fabricate either filament wound tanks or other collapsible mandrels, neither of which would have a seam or joint since, after constructing the tank or second mandrel on the first inflated collapsible mandrel, the first mandrel would be deflated, collapsed and removed from the interior of the tank or second mandrel.

Abstract: Disclosed is a method of and a device for producing bundles of hollow fibers such as used for dialysis. The device includes a guiding device for a continuous fiber which rotates in a plane. At least two groups of take-up elements are mounted on a conveyor. The conveyor is intermittently activated so that a group of take-up elements is placed in a working position in the range of movement of the guiding device, and a strand of a desired thickness is wound around the take-up elements. Thereafter, the conveyor is activated to discharge the first group together with the completed strand from the working position and place the subsequent empty group of take-up elements in the working position, without interruption of movement of the guiding device. During the winding-up of the subsequent strand, the completed strand is cut and wrapped into bundles.

Abstract: An electrostatic recording head has a plurality of electrode wires arranged parallel to each other at a predetermined pitch to form recording electrodes at one ends thereof, control electrodes arranged along these recording electrodes, and a recording electrode retainer for integrally fixing these electrodes with a resin. The other ends of these electrode wires are integrally fixed by an electrode wire terminal end retainer of a resin. The electrode wires are electrically connected to a part of the conductive pattern formed on a printed circuit board interposed between both retainers, and are grouped thereby to form a plurality of recording electrode set conductors. These conductors and lead wires connected to the control electrodes are connected to connector terminals. A recording voltage is applied to the connector terminals.

Abstract: The inventive method is used to make 3-Dimensional reinforced and flanged parts from filaments which are braided or wound flat (parallel to the surface of a mandrel).The method comprises the steps of:depositing a first layer of impregnated reinforcements on a mandrel parallel to the surface of the mandrel;placing separators on a portion of said first layer;depositing a second layer of impregnated reinforcements over the separators and said first layer;cutting said layers at the separators;removing said layers from the mandrel;parting the layers along said separators;removing said separators from said reinforcements;placing said cut and partially separated layers in a mold;conforming the layers to the shape of the mold;curing said impregnated reinforcements into a composite part; andremoving said composite part from said mold.

Abstract: A structural composite beam that extends along an arc is disclosed. The beam has a core in which web and flange portions are unitary and made by filament winding. A method is disclosed in which a plurality of these beams are made during a single layup, cure and cutting operation.

Abstract: A nozzle structure for supplying synthetic resin to a core of a sheet molding apparatus for molding a sheet molding compound. The nozzle structure has a hollow annular nozzle with an opening directed generally along or at an angle to the core on which the sheet is being molded, and frustoconical members are provided for guiding linear materials through the nozzle structure for coating them with synthetic resin.

Abstract: A varied thickness laminate or panel (92, 128) is fabricated by polar winding incomplete lamina or plies (54, 146, 148) on a mandrel (10, 110, 130) at selected angles. The plies (54) are wound at crossing angles, first one layer (60) at one angle and then a second layer (64) at a second angle. At the most remote crossing point from a wide starting end (32), a V (66) is formed between the crossing plies (60, 64) and in the space (62) formed by the V (66), no plies extend on the mandrel side (30). Thus, the winding on each side (30) is incomplete, a space (62) between successive V's (66, 154, 164, 174) being skipped by steps of the crossing plies. The first V (66) starts a taper from wide starting end (32) to narrow other end (34). Successive plies are wound around the mandrel from the polar ends (48, 50, 134), each successive set forming a V so as to thicken the windings in steps formed by the V's.

Abstract: A varied thickness laminate or panel (92, 128) is fabricated by polar winding incomplete lamina or plies (54, 146, 148) on a mandrel (10, 110, 130) at selected angles. The plies (54) are wound at crossing angles, first one layer (60) at one angle and then a second layer (64) at a second angle. At the most remote crossing point from a wide starting end (32), a V (66) is formed between the crossing plies (60, 64) and in the space (62) formed by the V (66), no plies extend on the mandrel side (30). Thus, the winding on each side (30) is incomplete, a space (62) between successive V's (66, 154, 164, 174) being skipped by steps of the crossing plies. The first V (66) starts a taper from wide starting end (32) to narrow other end (34). Successive plies are wound around the mandrel from the polar ends (48, 50, 134), each successive set forming a V so as to thicken the windings in steps formed by the V's.

Abstract: Apparatus for making plastic screen panels, and especially abrasion-resistant mining screens, includes a large rotary screen drum member on which an extruded, profiled cross-section screen surface-forming wire is helically wound at a pitch which will produce the desired screen slot width. Immediately adjacent the drum member is a rod-positioning mechanism from which a plurality of screen panel support rods are sequentially fed from a stack and welded to the wires on the drum surface in a direction parallel to the drum axis and transverse to the surface wires. The welding is done with a double-edged heater bar which is temporarily placed in contact with the rod and drum before the rod is forced against the drum. The screen drum is indexed after each support rod is attached to it by an angular amount sufficient to provide the desired spacing on the finished panel.

Abstract: A long synchronous belt made primarily of elastomeric material is provided which comprises a plurality of narrow, toothed strips joined in side-by-side fashion, each strip having at least one longitudinally-extending reinforcement located therein. Also provided is a method for making such a belt which comprises the steps of providing a first belt sleeve having the desired tooth configuration, cutting the first sleeve into a continuous strip, winding the strip to form a second sleeve of desired circumferential length, joining the adjacent strips of the second sleeve in side-by-side fashion, and cutting at least one belt of desired width from the second sleeve.

Abstract: Forces are applied to cut fibres in a prescribed fashion to cause them to move in a predetermined manner toward and to be deposited on a mould surface in a controlled oriented fashion.

Abstract: A varied thickness laminate or panel (92, 128) is fabricated by polar winding incomplete lamina or plies (54, 146, 148) on a mandrel (10, 110, 130) at selected angles. The plies (54) are wound at crossing angles, first one layer (60) at one angle and then a second layer (64) at a second angle. At the most remote crossing point from a wide starting end (32), a V (66) is formed between the crossing plies (60, 64) and in the space (62) formed by the V (66), no plies extend on the mandrel side (30). Thus, the winding on each side (30) is incomplete, a space (62) between successive V's (66, 154, 164, 174) being skipped by steps of the crossing plies. The first V (66) starts a taper from wide starting end (32) to narrow other end (34). Successive plies are wound around the mandrel from the polar ends (48, 50, 134), each successive set forming a V so as to thicken the windings in steps formed by the V's.

Abstract: A method of making a plurality of multi-wire nonimpact printheads provides precise inter-wire spacing accuracy and repeatability of manufacturing steps to enable mass production.A plurality of slats are molded, one alongside another on a cylindrical support shell, parallel to the shell axis. A helical thread is engraved on the slats along the axial length of the support shell. A continuous wire is wrapped in the thread and the portions of the wire on the slats are encapsulated. The support shell and wrapped wire is cut between adjacent slats to obtain a plurality of printhead blanks. Each blank is machined to smooth the exposed print wires. The resultant printheads may be used in page- width nonimpact printers.

Abstract: A plurality of lengths of fibers may be disposed into a sheet-like array with the fibers being spaced from each other and defining channels therebetween. A pair of membranes is brought into adhering relation with opposed sides of the fibers of the sheet-like array to form a multichanneled flow device.

Abstract: A method of producing a fiber reinforced plastic product which includes the steps of winding a strand or rovings on a mandrel prepared by a filament winding method in three directions of substantially +60 degrees, -60 degrees and 0 degrees to the axis of the mandrel in desired turns to form braid fabric reinforced in three directions; impregnating a resin before or after the winding step; cutting out the resin impregnated braid fabric from the mandrel to obtain a prepreg reinforced in three directions; and fabricating the prepreg in a desired configuration for a product by heating and a fiber reinforced plastic product made by the method.

Abstract: A method of manufacturing a composite material which comprises filaments enclosed in a matrix of a high temperature resistant thermoplastic polymer. The method entails impregnating the filament with a first high temperature resistant thermoplastic polymer in an amount sufficient only to lightly bind the fibres together. The bound fibres are then interposed between sheets of a second thermoplastic polymer and the whole structure subjected to heat and pressure for a time sufficient to ensure impregnation of said second thermoplastic polymer into said filaments and diffusion of the first thermoplastic polymer into the second thermoplastic polymer.

Abstract: A plurality of reinforced plastic parts are simultaneously molded from separate bundles of resin impregnated strands wound about individual frame sections of a substantially planar frame assembly. A loading station includes a dual-acting elongated carrier engaging the multi-sectioned frame assembly and initially rotatable to wind the bundle of strands thereon. Subsequent reciprocation of the carrier delivers the wound frame assembly to a molding station provided with a plurality of mating pairs of mold sections and having displaceable frame supporting and bundle clamping assemblies for engaging the wound frame assembly and severing opposite ends of the bundles as the mold sections close within the individual frame sections. Upon opening of the mold sections, molded parts and the empty frame assembly are subsequently shuttled from the molding station by a removal station provided with a reciprocating elongated carrier axially aligned with the center line of the molding station and the loading station carrier.

Abstract: A method for making conductive brushes which comprises providing a rotatable cylindrical mandrel having a plurality of longitudinal recesses on its surface, and winding electrically conductive fibers from a supply around the mandrel by rotating the mandrel. The brush backing or base may be formed by a number of methods utilizing the recesses on the surface of the mandrel. In one embodiment, the brush backing is formed by placing a strip of a conductive material in each of the recesses, and after the conductive fibers have been wound thereover, the conductive fiber windings are caused to adhere to each other by adhesive means and another strip of conductive material is placed over the windings to mate with the strip in the recess to form the backing for the conductive brush. Individual conductive brushes are obtained by cutting the conductive fibers in the longitudinal direction of the mandrel.

Abstract: Non woven fabrics are made by a method and an apparatus in which a preformed, planar set of adhesive coated or impregnated fill strands having a fixed orientation, spacing and tension of the fill strands is laminated to warp strands in the nip of pressure rolls.Adhesive lines are printed on a side of the warp strands opposite that engaged by the fill strands to prevent warp strands from hanging loosely from that side of the fabric.

Abstract: Transmission lines using tubular extendible elements in which two such elements are combined to form a coaxial type transmission line or a two-wire transmission line and in which a single element is constructed as a two-wire transmission line and tubular extendible elements and other structures using materials having various temperature coefficients.

Abstract: A multi-layered glass fiber sheet is formed by alternately laying groups of glass fiber warps and glass fiber wefts upon one another. The basic structure of the multi-layered glass fiber sheet is produced by deforming a portion of a circulating endless belt into a cylindrical shape in a section of the path of the belt, guiding glass fiber warps in the longitudinal direction of the cylindrically deformed portion of the belt to cover the entire periphery of the cylinder of the belt, winding glass fiber wefts about the cylinder of the glass fiber warps at right angles or at angles less than right angles to the warps, applying additional glass fiber warps to the cylinder in the longitudinal direction of the cylinder to form a multi-layered cylindrical product comprising warps and wefts, and ripping or cutting the cylindrical product along a line in the longitudinal direction of the cylindrical product by a cutter to provide a multi-layered sheet.

Abstract: A method of producing a composite structure consists of winding a resin impregnated filament tow onto a former or formers having surfaces which correspond with a portion of the finished article, removing the fibre sheets from the former or formers, and placing them in a mould which corresponds in shape to that of the complete article, and pressing the fibre within the mould to consolidate the finished article.

Abstract: A supply of hollow plastic tubing is obtained from an extrusion and sizing apparatus, or from a supply of hollow tubing on a reel. The hollow tubing is provided at a predetermined speed to a tensioning device which imparts a tension in the hollow tubing and delivers it to a feeding point at one edge of the periphery of a rotating drum. The continuous hollow tubing is wound around the periphery of the drum at the one edge and it is forced axially on the periphery by a helical shoe overlying the periphery at the one edge. A bank of quartz lamps heats one side of the hollow plastic tubing just prior to reaching the feeding point, and another bank of quartz lamps heats the opposite side of the hollow plastic tubing at the one edge of the drum just after the tubing passes the shoe. The two heated surfaces are pressed together by the axial force exerted by the shoe, and are fused in side by side relation to form a cylinder having a wall consisting of spiral turns of the plastic tubing fused together.

Abstract: A loop type force transmitting element is made of fiber composite or compd material. The force transmitting element has a predetermined cross-sectional shape and is open at one end. The cross-sectional area through the loop is constant along the length of the loop. However, the cross-sectional shape or configuration varies along the length of the loop. This type of structure is accomplished by machine winding the reinforcing fibers or filaments as an endless loop onto a winding core which has lateral walls spaced from each other so that the spacing corresponds to the wall thickness configuration along the length of the force transmitting element. One loop portion of the initially endless loop is severed after the composite material has been hardened whereby a loop element is formed which is open at one end.

Abstract: A method of manufacturing a fiber-reinforced plastic body of irregular geometrical shape including winding a ring of fibers such that different sections of the ring around its periphery correspond in contour to sections of the body. The sections of the ring are cut from the remainder of the ring, and the sections joined together, such as by bonding to each other, to form the final body. The cut sections may be mechanically processed before joining them together. The fibers run approximately parallel to the outer contour of the finished body.

Abstract: A fiber reinforced resin composite and its formation method is disclosed. The process comprises applying resin in a metered amount to fiber strands, winding the coated strands onto a drum while simultaneously applying chopped fibers to the area immediately to be covered by the strands as they are wound. The preferred material for both the wound strands and the chopped strand is fiber glass.

Abstract: A fiber reinforced resin composite and its formation method is disclosed. The process comprises applying resin in a metered amount to fiber strands, winding the coated strands onto a drum while simultaneously applying swirled continuous fibers to the area immediately to be covered by the strands as they are wound. The preferred material for both the wound strands and the swirled strand is fiber glass.

Abstract: Assembly of a fiber reinforced resin tank includes joining a plurality of prefabricted arcuate wall panel sections by elongated joiner panels extending along the vertical seams between adjacent wall sections to form the perimeter of a cylindrical tank. The wall sections have a plurality of openings adjacent the vertical sides and the joiner panels have columns of transversely spaced pairs of protrusions for coupling with the openings in adjacent panel sections. The joiner panel is able to pass circumferential hoop stress from one panel section to an adjacent panel section by providing effective clamping between the two panels through the use of continuous filament and/or geometrically oriented glass or other fibers placed into a hooked shape so the fibers extend between each pair of spaced protrusions and curve into the protrusions so the fibers extend along the protrusions.

Abstract: A method of preparing resin sheets reinforced by glass and carbon strands is described in which the glass strands are passed through a resin bath. The glass strands are passed through a die as they emerge from the bath to control their resin content and wound on a mandrel. The carbon strands are passed directly into the die and are wetted by the resin in the die and on the mandrel. The glass and carbon strands are laid on the mandrel with resin to provide a resin sheet containing 5 to 70 percent glass by weight and 60 to 5 percent carbon strand by weight.

Abstract: Closely spaced windings of wire are laid down on a revolving drum and retained in place by an adhesive substrate previously mounted on the drum. The cylinder of wire with an adhesive substrate which is formed is cut and removed from the drum and spread into a flat sheet. The wire side of the sheet is placed in contact with the epoxied surface of an elongated plate. The plate traverses the wire sheet in a strip proximate one terminal edge thereof dividing the sheet into a major portion which will ultimately form the lead wires to the head and a minor portion which is trimmed off in later step. After the epoxy has dried, the adhesive substrate is removed and the newly exposed side of the wire is placed in contact with the epoxied surface of a second elongated plate. The two plates form an elongated sandwich containing the wire embedded in epoxy. The ends of the wire forming the minor portion are trimmed and the end surface of the sandwich is polished to form the finished recording head.

Abstract: A method of forming a reinforcing fabric and in particular a body ply for a radial tire. A continuous narrow ribbon, which is formed of an uncured elastomeric material having a plurality of spaced substantially parallel reinforcing means, preferably individual steel filaments, embedded in the elastomeric material and extending along the length of the ribbon, is helically wound on a cylindrical drum with successive turns of the ribbon overlapping one another to form a cylinder whose wall thickness is greater than the thickness of the ribbon. The helical winding of the ribbon is continued until the length of the wound cylinder is approximately equal to the circumference of the bead of the radial tire to be produced.

Abstract: In a method for feeding reinforcing strand when making a tubular product of plastic or other synthetic material, comprising supplying helically a supporting strand during rotation of a tube blank and applying a longitudinal reinforcing strand to the blank, the longitudinal reinforcement strand is in form of pieces cut off from a continuous strand after abutment thereof against the supporting strand. The continuous strand gradually displaces the cut off lengths of strand during the rotation of the tube blank. An apparatus for carrying out the method comprises means for feeding support helically around a rotating tube blank, means for feeding portions of additional reinforcing strand oriented in the direction of the tube blank to place the portions between the supporting strands and the tube blank, and means for cutting off said axially orientated reinforcing strands. The cutting is carried out when the strand portion is held by at least one supporting strand.

Abstract: A pile weatherstripping has a continuous length of a resin anchorage base with even lengths of filaments secured to opposite sides of the base along the length of the base and extending away from the base in the same general direction on each side of the base. The filaments are long enough and dense enough to form insulating pile rows extending out of a retainer slot in which the anchorage base has an interference fit. A sheet resin fin preferably extends continuously outward from the base between the filaments on the opposite sides of the base, and such a weatherstripping is preferably made by wrapping a multifilament yarn around a plurality of bases, securing the yarn to opposite sides of the bases, and then slitting to separate each individual weatherstrip.

Abstract: A method for producing carpeting of a type having pile yarns adhesively bonded to a backing which comprises providing a thin flexible core member having longitudinal and transverse axes, winding a continuous yarn around the core member in a direction perpendicular to the longitudinal axis so as to form a plurality of elongated loops conforming to the cross-sectional configuration of the core member, positioning the core member having the yarn wound thereon on a backing sheet so that the longitudinal axis is parallel to the sheet and the transverse axis is perpendicular to the sheet and so that one end of each of the loops contacts the backing sheet, adhering the end of the loops contacting the backing sheet to the backing sheet, cutting the other ends of the loops, and removing the core member. Carpeting characterized by good register between different colors and different heights with a high degree of flexibility in the design pattern is obtained by this method.

Abstract: Large volume tubular structures, particularly such structures made of reinforced plastic, are slit longitudinally and convolutely coiled to effectively reduce their volume for shipping, handling, or storing. For further volume reducing advantage a plurality of such tubular structures are coiled together in a shippable package. The slit tubes are subsequently reunited or joined together with other tubes for a variety of end uses.

Abstract: A low friction bushing is made by winding a continuous strand of bondable low friction thread impregnated with a bonding resin into the shape of a hollow cylinder having an axial length greater than the finished bushing. The cylinder is inserted into an annular cavity and with heat and pressure is axially compressed therewithin to radially expand it and compact the thread turns and fuse the resin into a solidified matrix with the thread and resin matrix completely filling the cavity and thereafter the solidified bushing is removed from the cavity. One of the cylindrical walls of the cavity is finished with a surface of bearing quality such that the surface of the bushing pressed thereagainst will be of a complementary quality.

Abstract: An apparatus for the manufacture of optical-fiber bundles comprises a frame, a plate-like rotor having upper and lower parallel surfaces journaled to rotate in the frame about an axis of rotation parallel to the surfaces, a fiber guide mounted in the frame along a line parallel to the axis of rotation of the rotor, means for rotating the rotor, and means for moving the fiber guide coordinately with the rotor such that optical fibers passing through the fiber guide are wound on the rotor in a parallel fan-like manner.

Abstract: A method for producing carpeting of type having pile yarns adhesively bonded to a backing which comprises providing a thin flexible core member having longitudinal and transverse axes, winding a continuous yarn around the core member in a direction perpendicular to the longitudinal axis so as to form a plurality of elongated loops conforming to the cross-sectional configuration of the core member, positioning the core member having the yarn wound thereon on a backing sheet so that the longitudinal axis is parallel to the sheet and the transverse axis is perpendicular to the sheet and so that one end of each of the loops contacts the backing sheet, adhering the end of the loops contacting the backing sheet to the backing sheet, cutting the other ends of the loops, and removing the core member.

Abstract: A process is provided for the continuous production of nonwoven webs in cylindrical or sheet form from thermoplastic fibers, spinning the fibers continuously from a melt onto a rotating mandrel and winding them up on the mandrel to form a generally spirally wound cylinder. Density of the wound cylinder is controlled by controlling the distance between the rotating mandrel and the orifices of the spinning die through which the molten polymeric material is spun. If the spinning of the fibers is continuous, the cylinder can be formed in a continuous length. Control of the spinning rate in relation to the diameter and rate of rotation of the mandrel and the rate of advance of the cylinder on the mandrel controls the thickness of the cylinder. The cylinder can be drawn off the mandrel and used as a cylinder, or either slit lengthwise and opened out, or collapsed onto itself, for use as a sheet. The process is particularly adapted for forming filter elements.

Abstract: A pile weatherstripping has a continuous length of a resin anchorage base with even lengths of filaments secured to opposite sides of the base along the length of the base and extending away from the base in the same general direction on each side of the base. The filaments are long enough and dense enough to form insulating pile rows extending out of a retainer slot in which the anchorage base has an interference fit. A sheet resin fin preferably extends continuously outward from the base between the filaments on the opposite sides of the base, and such a weatherstripping is preferably made by wrapping a multifilament yarn around a plurality of bases, securing the yarn to opposite sides of the bases, and then slitting to separate each individual weatherstrip.