Abstract: A sheet metal clinch nut configured to be attached to a plastic panel. A portion of the plastic panel is extruded into a toothed aperture without puncturing the plastic to axially and rotationally fix the clinch nut to the panel. A plurality of embodiments are disclosed as is the method of assembling these clinch nuts to the plastic panel. Also a method of feeding an interconnected strip of clinch nuts and breaking off the lead nut at the staking station is described.

Abstract: A method and an apparatus for manufacturing the socket portion of a plastics pipe provided with a sealing ring by pushing said sealing ring on a mandrel and by locking it thereto whereupon the heated end of said plastics pipe is pushed onto said mandrel and said sealing ring. Hereafter, the locking of said sealing ring is released, and the pipe and the ring therein a removed from the mandrel.In order to facilitate this removal operation, a mandrel having an adjustable diameter is used, the mantle surface of said mandrel being provided with peripheral grooves into which shoulders in said sealing ring fit for locking said ring to said mandrel for the duration of the socket forming.

Abstract: The invention relates to a method of forming a pipe socket having a sealing ring (8) at the inner surface of the pipe socket wall. The sealing ring has a fastening portion (16) and a sealing portion (20) connected therewith. The sealing portion (20) is displaceable in the axial direction of the pipe socket to be able to take different positions therein in order to adapt to different tolerances. It is a problem that the sealing portion (20) because of its displacability is not adapted to constitute such a surface around which the pipe wall can be formed. In order to obviate this drawback the pipe wall is formed so that the sealing portion (20) is positioned outside the pipe socket during the forming operation, whereupon the sealing portion is folded into the pipe socket after the forming operation.

Abstract: This invention relates to a sewing method. Staples or tacks having the function of a sewing thread are first penetrated successively through a work placed on a bed. The staples or tacks are supplied and fed successively from a feeder which is provided over the work. The extremities of the staples or tacks are then transformed so as not to be removed from the work. The penetrating and transforming operations are performed simultaneously at a plurality of points or successively from point to point, whereby seams or patterned seams adjacent to each other are accomplished to sew the work.

Abstract: A stud for releasable attachment to an article of footwear, particularly for use in games and sports, comprises a support made of plastics material such as glass-filled nylon and a metal pin element. The support has an externally screw-threaded sleeve for engagement with a socket in an article of footwear and an outwardly directed flange for engagement with the lower end of the socket or with the sole of the article of footwear. The pin element comprises a stem and a ground-engaging head which may be blunt or spike-shaped. In assembly the stem is inserted into the sleeve and is then deformed as by riveting to secure the support and the pin element together.

Abstract: This specification discloses a bowling pin fabricated in three sections from plastic material having two different physical characteristics; the hollow top and bottom sections having approximately the same high density, same coefficient of restitution and same melt index, while the medial section is fabricated from plastic material having a greater density, a lower coefficient of restitution and a higher melt index, to permit spinning the top and bottom sections to the medial section, thereby to provide a plastic bowling pin with the physical characteristics of hard maple wood. A base plug may be secured to the bottom section.

Abstract: A first pipe is connected to the wall of a container such as a larger pipe, tank or other vessel, wherein the transverse surface of one end of the first pipe is substantially flush with the inside surface of the portion of the wall of the container to which the first pipe is connected. The method for forming the pipe connection relies upon the plastic memory of the synthetic thermoplastic polymeric material from which the end portion of the first pipe and the portion of the wall of the container, to which the first pipe is to be connected, are formed. The diameter of a hole in the wall of the container is expanded in a cold condition in such a manner that the edges of the hole expand outwardly from the wall of the container while the diameter of the end portion of the first pipe is reduced in a cold condition such that the reduced diameter portion of the first pipe can be inserted into the expanded hole.

Abstract: Method for making a rotor assembly for a stepping motor is provided by locating one flat side of a brittle magnetic rotor annulus against a preformed annular alignment surface molded into a thermoplastic hub and then thermoplastically working localized portions of the hub adjacent the other flat side of the rotor to form in situ a second annular shoulder thereagainst to lock the rotor in the aligned position. Other localized portions of the hub are thermoplastically worked to form in situ an inner circumferential lip extending radially from the hub into a corresponding groove in the shaft supporting the hub, thereby preventing axial movement of the hub and rotor mounted thereon. Required alignment of the brittle rotor disc is thereby achieved while minimizing the danger of breakage and also minimizing the number of components and assembly steps.

Abstract: A construction set of resiliently flexible pipe incorporating an integrally formed interlocking pipe joint. The set and joint are adaptable for use on a small scale as a toy and on a larger scale for construction of furniture, geodesic domes, and the like. Outwardly bowed longitudinal members integrally formed in the pipes are adapted to be inserted with the members of one pipe interlocked with the members of the other pipe. In alternate embodiments, a spherical member or hardenable material are inserted within the assembled joint.

Abstract: A single piece plastic shotshell comprising a tube of high density polyethylene which is uniformly biaxially oriented to a substantial degree throughout its length and has side walls of constant internal diameter, thickness, molecular orientation and physical strength, the tube having a substantially thickened integral transverse base section formed of a compressed length of the tube at one of its end portions with a longitudinally extending primer opening therein, the base section being substantially biaxially oriented and telescoped within said end portion of the tube. Apparatus and methods for making the shotshell are also disclosed.

Abstract: An RF probe and method for making same including laminating sheets of thermoplastic insulation to both sides of a layer of wire screen which is evacuated and pressure thereafter applied by fluid pressure acting on a diaphragm pressing member.

Abstract: Socket pipe of thermoplastics having a groove with longitudinally extending additional recess, which groove is bound by a radially extending head portion.

Abstract: A method of bonding a sheet of hard to bond thermoformable material to a core made of expanded thermoformable material is disclosed. The sheet of thermoformable material is heated to its glass transition temperature and then pressed into voids in the core forming a mechanical bond in addition to the chemical bond.

Abstract: An improved process for manufacturing Jai Alai baskets consists of forming the ring and separator as a molded plastic unit of either U-shaped or hollow cross-section. The ribs are similarly formed from plastic with holes so as to provide for a predetermined amount of flexibility. The ring unit and ribs are then placed in a detachable frame and either woven with plastic strips or welded to a series of parallel plastic strips. The strips are of rectangular cross-section and possess projections which are flattened by the projections of the colaterally located strips to protect the ribs. A glove is sewn on the basket.

Abstract: A heat-recoverable wrap-around device is made from heat-shrinkable sheet material, two opposed edges of which may be secured together by fasteners so as to form a sleeve prior to recovery. Each edge region is provided with a strip of rigid material lying generally in the plane of the sheet. The strips may be bonded or embedded within the sheet material, or positioned in terminal loops therein, and are preferably so designed that they can be deformed into an interlocking relationship which withstands the recovery forces.

Abstract: A bone replacement, for example a portion of a hip joint, a bone junction plate, or the like, includes a core element of a fiber-reinforced thermosetting material with a surface element made of a biologically compatible material, typically polyethylene, completely surrounding the core element. The outside surface element is internally interlocked with the core element, by being molded in one heat treatment operation which simultaneously cures the thermosetting material while molding the outside biologically compatible surface element thereto and interlocking and integrating the two elements into one unitary structure. Preferably, the fiber reinforcement is formed as fibers, woven mats, felted mats, or the like, and the surface element may, likewise, include a reinforcement beneath the surface actually in contact with the human body.

Abstract: A catheter with an inflation cuff, is produced by a method in which an inflation cuff of an elastomeric material which is not thermoplastic is placed on a catheter shaft of thermoplastic material at a desired position. Pressure is directed inwardly around the entire periphery of at least each end of the cuff. The shaft is heated sufficiently to soften it so as to enable at least the ends of the cuff to be recessed into the material of the shaft by the inwardly directed pressure.

Abstract: An ear plug assembly includes a pair of plug bodies made from open cell resilient foam material having a slow recovery rate which are interconnected by a flexible cord having its free ends inserted into preformed holes in the plug bodies before the holes close under the influence of the recovery rate.

Abstract: A base with a central aperture and a post having an axially outwardly open hollow-tipped stem are mounted on a supporting sheet piece to make up either a stud or a socket of a plastic snap fastener. The base is placed in proper position on one side of the supporting piece, while the post is aligned with it on the other side of the supporting piece and is forced to pierce therethrough and to extend through the aperture in the base. The mounting is completed by crashing the hollow walls of the stem under axial pressure while exerting radially inwardly contracting force upon the open hollow tip brim of the stem.

Abstract: A method of making sole by laminating a foamed rubber sheet and a solid rubber sheet is disclosed. The lamination of these sheets can be effected without the use of any adhesives or glues and can obtain an excellent interlayer bonding effect.

Abstract: A thermoplastic front frame having many small protrusions on the whole front face and many thorn-like sharp projections on the whole rear face. The frame is strongly forced onto a cloth with the front face of the frame being directed downwardly, so that the front protrusions cut into the cloth so as to temporarily secure the cloth to the frame. Thereafter, the peripheral portion of the cloth extending outside of the frame is folded upwardly and then further folded inwardly and pierced by the rear projections thereby being temporarily secured. Then, a heated iron is forced onto the rear projections to depress the head portions of the rear projections to cause the projection to make the head of each projection larger than the mesh of the cloth whereby the cloth is permanently secured to the frame. Then, the cloth covered frame so formed is integrally attached to the speaker box.

Abstract: A novel method for embedding a button into a dental cast by forming a cavity and pouring a cold setting material such as a plastic into which a screw is inserted while the poured button is in the fluid form before final setting. The screw has a notch in at least one thread so that the molding material forms an interlock or detent in the notch, which is sheared upon removal of the screw.

Abstract: There is provided an improved guy guard for a guy wire of a utility pole and the like and formed of an elongated tubular plastic guard member having a longitudinally frangible web and differentially stressed to bias the guard member to curl around itself when the web is fractured. The guard member is installed on a guy wire by progressively forcing the guy wire through the frangible web thereby releasing the wrapping action.

Abstract: A bell and spigot pipe joint including a bell end having a locked in sealing gasket and a thickened cross-sectional configuration is disclosed herein. A method and an assembly for making the bell end with its thickened cross-sectional configuration and with the sealing gasket locked in place are also disclosed herein.

Abstract: A method of making a plate cylinder for a web printing press in which a hollow cylinder with a conical interior is formed of ductile steel. Two nickel printing plates are formed to shape so that they will fit virtually exactly around the cylinder without joins between them being readily apparent. A cylindrical mould having two semi-cylindrical mould halves is formed with its inner diameter equal to the outer diameter of the plate cylinder being produced. One mould half is placed with its semi-cylindrical inner surface facing upwards and a printing plate is placed inside. Then the hollow cylinder coated with epoxy resin is placed on this plate, and the other printing plate is placed on the cylinder. The second mould half is secured to the first half, and a conical core is forced into the cylinder to expand it radially so that the plates are held under pressure against the mould surface. Then the mould is heated and the resin allowed to set under conditions of temperature and pressure.

Abstract: The invention permits the lining of a passageway or pipeline with a resilient but robust, semi-rigid plastics pipe. The invention enables the lining of pipelines and passageways of long length by extruding the lining tube on site, deflecting the tube so that it is deflected into smaller diametral size, holding the tube in the deflected condition, feeding the deflected and held tube into the passageway to be lined, and releasing the hold on the tube so that it deflects or is deflected back to its original form and lines the pipeline or passageway.

Abstract: A method of applying a bag to an aerosol type container wherein the product bag is formed of a stretchable material. An upper part of the product bag is first positioned on a tool, after which the product bag is inserted into the can until the upper part becomes seated on the curl which defines a valve cup receiving opening. Then the tool is actuated to effect a radial outward stretching and deformation of the bag upper part with the bag upper part being formed about the curl and thus secured in place relative to the curl. The tool is then removed, the product bag filled with the product, and the customary valve cup positioned.

Abstract: A temperature controlled heat delivery head for heat staking electrical contact retention clips in rapid succession in an insulator. A large heat-conductive body acts to store heat and to deliver it to a substantially smaller heat-conductive projection. The body is maintained at, for example, about 820.degree. F. The projection is maintained at, for example, about 830.degree. F.

Abstract: A switch assembly comprises a deformable electrically insulative substrate with a plurality of grooves formed therein extending in a direction parallel to a given axis. Electrically conductive wires are disposed in the grooves and extend beyond one end of the substrate. The grooves have a width and a depth such that the wires are accurately positioned in the substrate and securely held therein. The wire is secured in the groove by a tool having a concaved end portion which stradles the wire and is moved toward the substrate until the cut out portion essentially contacts the top of the wire, and the substrate material flows onto the wire for locking the wire in the groove.

Abstract: A method of making a sealing member for association with a bore in a barrel member comprises cutting into and rolling a thin layer from a rod of circular cross-section, preferably made of P.T.F.E., leaving the rolled layer integral with the support, forming an annular groove in the support for an elastomeric sealing ring, unrolling the rolled layer so as to form a sheath which covers the ring and so as to leave a rolled portion of the sheath on one side of the ring which forms a resilient annular bulge in the sheath, and compressing the rolled portion whereby the sealing ring is sealed on both its sides by the sheath.

Abstract: A lined pipe including an outer pipe, an inner pipe provided within the outer pipe and extending substantially in the entire length of the outer pipe and the plurality of locking shims provided between the inner surface of the outer pipe and the outer surface of the inner lining pipe formed by injecting a resin into any voids between the inner surface of the outer pipe and the outer surface of the inner lining pipe, letting the resin cure and jarring the lined pipe to break the cured resin into small pieces which wedge between the outer surface of the inner lined pipe and the inner surface of the outer lined pipe whereby the inner lining is locked to the outer pipe.

Abstract: A method is disclosed to embed a perforated body in a cake of soap and to align that body perforation with a transverse hole in the soap so that a support post can easily penetrate the body hole to support the soap by the embedded body.The flat sheet like body is inserted edgewise into bar soap through a slot in the soap created during the soap extrusion. The problem of aligning the hole in the body with the hole in the soap during the high speed production of cake soap is overcome by first placing the body in the soap at the desired location within a distance of one half the diameter of the hole in the body. The final exact location of the body hole is achieved by a pointed punch creating a hole in the soap by the point on the punch picking up the body hole and shifting the body as needed by a corresponding sized portion of the punch entering the body hole.

Abstract: An inplace gasket belling machine wherein a plastic pipe is received in a tilt clamp fixture and tilted thereon for receiving a heating bell on one end portion of the pipe. Heated fluid is directed over the inserted pipe end portion. The heating bell may be withdrawn from the pipe in intermittent steps to afford a temperature gradient along the pipe end portion. The pipe is then tilted to a horizontal disposition for the insertion of a gasket belling mandrel into the heated end portion of the pipe. A gasket magazine is supported adjacent the mandrel for automatically placing an annular gasket on the mandrel for insertion into the pipe end portion. The mandrel includes an outer housing and a mandrel body portion telescopically received within the outer housing. The outer housing has a stop shoulder and a gasket positioning sleeve extended forwardly therefrom. The mandrel body portion has a flared pipe expanding portion and a gasket carrying portion rearwardly thereof.

Abstract: An electric storage battery having a plurality of cell compartments separated from each other by wall means formed of thermoplastic plastics material, each cell compartment containing a plurality of plates electrically connected together, the plates of one cell compartment being electrically connected to the plates in an adjacent cell compartment by an intercell connecting rod which provides a direct connection between adjacent cells through the wall means, the rod having been embedded in position in the wall means by deformation of the wall means when the thermoplastic plastics material was softened by heat.

Abstract: A method of making a composite structure comprising an elongate substrate, especially an insulated electrical cable, and a covering member which has been heat-recovered and sealed around the substrate. A heat-recoverable article of a cross-linked crystalline polymer composition which transmits 5-50% of infra-red radiation incident thereon is placed around a substrate whose exterior is composed of a polymeric composition which is at most lightly cross-linked, which absorbs infra-red radiation and which has a crystalline melting point below that of the heat-recoverable article. The assembly is exposed to infra-red radiation such that the heat-recoverable article is heated to its recovery temperature and the exterior of the substrate is heated to its crystalline melting point, preferably before it is contacted by said article as it recovers. In this way an excellent seal can be created between the substrate and the recovered article without the need for any auxiliary fusible material such as a hot melt adhesive.

Abstract: A cable comprising a central armour, a dielectric helically grooved core and optical fibres housed in said grooves which are formed with a lip protruding from one edge is produced by extrusion of the profiled core on the armour heating of the core, laying of one fibre within one groove with the aid of a fibre guide controlled by a positioning slot in said core, bending the lip to close the groove outwardly and repeating said heating, laying, etc. . . for each fibre and taping the structure.

Abstract: A lens suitable for implantation in the eye is provided with laterally extending iris clips each having at least one of its ends locked within the body of the lens. The clips are initially extended through close-fitting openings, terminally beaded and forcefully retracted sufficiently to bury their beaded ends within the lens body. Cold flow of lens material around the beaded ends locks the clips in place.

Abstract: Method of installing a tip on a tube for making a probe cover comprising: axially, movably supporting the tube on an axially movable support pin with the pin extending beyond the end of the tube; placing a tip on the end of the pin that extends beyond the tube; applying a force to the tip to engage the tip with the end of the tube; applying a force to the end of the tube engaged with the tip to curl that end of the tube inwardly about the tip; and applying heat to the tip to soften that end of the tube engaged with the tip and cause it to reform about the tip in the inwardly curled form induced by the force applied to the end of the tube.

Abstract: A method of molding a socket part on a synthetic resinous pipe end is disclosed. The socket part is for use in the connection of synthetic resinous pipes and is provided with a filler ring for filling a space created by a spigot pipe end, the inclined surface at the interior of the socket part, and a virtual inner surface formed by the two connected pipes. In addition, the filler ring fulfills a function in the capacity of a stopper which regulates the insertion length of the spigot pipe. For the purpose of its being retained in the socket part, the filler ring to be employed should have its external diameter be slightly larger than the internal diameter of the part which has been molded as the socket part, and is held through the medium of a holding means which is maintained concentrically with the core mold.

Abstract: Apparatus for installing metallic inserts into thermoplastic material. The apparatus comprises a heating device in combination with a heating element having a first bore adapted to receive the heating device. The heating element is formed into an elongated tip specifically shaped to grasp a metallic insert which is then heated by conduction to a temperature suitable for melting the thermoplastic material. A longitudinal bore in alignment with the first bore and coupled thereto with a second bore extends through the heating element elongated tip. Plunger apparatus slidably inserted in the longitudinal bore and second bore is positioned by spring apparatus located in the second bore to maintain the metallic insert in engagement with the elongated tip of the heating element during the heating and insertion of the metallic insert into the thermoplastic material.

Abstract: A method for manufacturing a door catch including a main body made of a thermoplastic resin, and a magnet board for attracting a piece to-be-attracted of a door, wherein supports and a leg portion which constitute the main body are integrally molded of the resinous material under the state under which the spacing between the upper parts of the supports is expanded so as to permit the magnet board to be inserted therebetween, and wherein the magnet board is fixed between the supports owing to the shrinkage of the resinous material at the time of cooling thereof.

Abstract: A plastic heel is attached by inserting through an insole of a shoe a fastener, and vibrating the fastener at ultrasonic frequency to cause its shank to melt the plastic and become embedded in the heel. The fastener may be a staple with wide legs having holes therein. The shank of the shoe may be bridged by the staple for added attachment strength. Since less work penetration is needed than in nail-attaching of heels, advantage is gained especially in securing sharply tapering or so-called "stiletto" heels.

Abstract: A characters carrying aggregate or assembly for a printing machine includes a characters carrying disk carrying the characters on the outer ends of radial arms extending from the disk. The disk is mounted on a hub and may include a crown mounted opposite the hub. The assembly is manufactured on a base plate having at least two positioning pins corresponding to two positioning holes in the disk. The base-plate includes a central hole or protrusion for aligning with a central protrusion or hole in the hub. The base-plate further includes an alignment finger which extends through an orientation hole in the disk into a specific oriented alignment with an orientation hole in the hub. The aligned hub and disk are then secured together.

Abstract: A process of molding a teflon tube to a plastic body which includes the steps of jacketing an end zone of a tube of teflon with a sleeve of plastic and with a portion of the teflon extending from the sleeve and heating the extending zone of the teflon so that in response to the heat the teflon curls about the plastic forming a mechanical lock and molding plastic about the plastic sleeve at the end to form a bond and mechanical lock.

Abstract: A contact retaining clip is fixed in an insulator cavity by the use of discontinuities around the clip which can be wedged or embedded in the insulator. Preferably a probe is inserted into the clip to expand it. The clip and/or the probe may be heated prior or during insertion or by heating after insertion of the clip but before expansion of the clip.

Abstract: Methods and apparatus are disclosed for the manufacture of plastic intraocular lenses of the type used for transplant in the human eye for natural lens replacement in cataract surgery. The novel methods and apparatus of the present invention are characterized in that the lines or wires used as retention loops are attached to the plastic lens bodies by fusing the ends thereof internally of the lens body in a position remote from the outer peripheries of the lens bodies but outside the central areas of vision of the lens bodies, one method of fusing the ends of the wires to the lens bodies being by heating the wires and pushing them into the lens bodies.

Abstract: In accordance with a preferred embodiment of this invention, there is provided a new and improved method of forming a four-lumen gastrointestinal tube. This tube may be characterized as having two lumens which extend nearly the full length of the tube and two lumens which extend through only a portion of the tube.

Abstract: A microfiche structure consisting of a laminate of an opaque, apertured web sandwiched between two transparent sheets. The transparent material partially extends into each aperture to thereby define, for each aperture, an optical doublet. The laminate may be continuously formed by compression, as by rolls.

Abstract: There is disclosed a process for assembling weather stripping which comprises continuously gaping the flanged mouth of an elongated holder inserting therein succeeding lengths of a foot portion of an elongate piece of weather stripping and thereafter continuously closing the flanged mouth to retain the weather stripping while it is in a relaxed state.

Abstract: A fiber optic cable for use in a fiber optic connector in which a ferrule is compressed around the end of the fiber bundle in the cable. The bore in the ferrule has a cylindrical wall with circumferentially spaced flat surfaces thereon which minimize the compression hoop effects on the peripheral fibers of the bundle, thereby maximizing fiber bundle consolidation.