Abstract: A tinsel facetting apparatus and method for use in facetting a metallized polyvinyl chloride (PVC) strip including a pair of serrated rolls having a thermal element located in each roll. The PVC strip is facetted as it travels between the two rolls which are maintained at a predetermined temperature determined by the color of the PVC strip. The apparatus and method further provide for timed slitting of the PVC strip into spaced sections constituting facetted icicles, each spaced section separated from the next by a header portion and timed cutting the PVC strip into segments including a spaced section and an unslit header portion so the facetted icicles hang freely from the header portion.

Abstract: A vibrating body is so provided as to surround a jet stream composed of a capsule film material and a capsule filler material extruded from the orifice of two coaxial conduits positioned in a cooling liquid medium. The vibrating body can be controlled in reciprocating vibration in the upward and downward directions whereby it is possible to produce waves in the cooling liquid medium which are most suitable for obtaining the required diameter of capsules and the required speed of manufacture. The jet stream is formed into spherical capsule drops at markedly increased speed of manufacture owing to the control of vibration of the vibrating body and interfacial tension.The method for obtaining seamless capsules can ensure the possibility of manufacture of very small capsules, i.e. miniature capsules by mass production which has never been accomplished satisfactorily by the conventional methods and apparatus in the industry.

Abstract: There are disclosed a process for the continuous production of open, composite reticulated structures consisting of at least two superimposed or overlapping fibrilled films of synthetic polymers, and apparatus for effecting the transversal opening or stretching (with respect to the slitting or fibrilling direction) of a fibrilled film or of a combination of at least two superimposed fibrilled films and which comprises a feeding system for the fibrilled film, a pair of diverging guides each closing upon itself in the form of a ring for transverse stretching of the film, a series of clamps sliding on guides for gripping the edges of the film or film assembly, means for feeding the clamps to the guides, a series of two pulling means for engaging the clamps, means for opening the clamps and dragging them along the guides to the feeding devices, and means for take-up of the open film or the assembly of open films.

Abstract: A method is disclosed for sealing or closing off the open end of a multilayered tubular structure, especially one having a barrier or low-gas permeable layer, whereby the integrity of said barrier layer is maintained. The method gives rise to a multilayered parison structure which comprises a cylindrical body having a body wall, an open portion terminating at one end thereof and a bottom wall at the opposite end of said body, said body and bottom walls being composed of a plurality of layers bonded together, all the layers of said bottom wall extending fully inwardly in contacting and overlapping relationship with like layers along the longitudinal axis of said cylindrical body, and a balancing member attached to said bottom wall, said member being composed of a single layer material forced therefrom while in a plastic state.

Abstract: Disclosed is a method of forming a molded, field-installable optical connector. The method uses a support assembly which includes a wire mandrel, (10), a mandrel holder, (11), surrounding a portion of the wire, and a mandrel sleeve, (12), surrounding a portion of the mandrel holder and including an end surface, (15). Positioned at the end surface is a watch bearing jewel, (16), with an aperture, (17), through which the wire is inserted. As backbone insert, (19), is also located around a portion of the mandrel sleeve. The assembly is positioned within a molding apparatus including a precision frusto-conical die, (25), by inserting the wire through a second jewel, (26), mounted in the die. After molding, the connector, which includes the first jewel embedded at one end of the molded part and the backbone insert as a strength member, is removed from the support assembly.

Abstract: A method of using centrifugal force to reduce the effects of surface tension, viscosity and gravity on the shape of the concave surface in the spin casting of contact lenses.

Abstract: A method of casting contact lenses by forcing the liquid monomer into the optical molds under very high pressure, the pressure being provided by centrifugal force by revolving the lens mold around a center of rotation perpendicular to the optical axis of the lens and polymerizing the liquid monomer under pressure to form the lens.

Abstract: A two-dimensional integral net having a nap in form of relatively long fibres which are integral with the net and protrude from the edges which surround the apertures of the net.A method of producing this net from a film is by heating selected areas of the film to a molten state and dragging out this molten material into fibres to leave apertures in the film while controlling the fibre-dragging by cooling with an air jet.

Abstract: To increase the rate of production of polyester film in cases where such film is produced by extruding a molten polymer onto the quenching surface of a rotating casting wheel, the shell thickness of the casting wheel is reduced.

Abstract: The present invention is carried out in combination with the injection molding of a closure cap or container, wherein a continuous sealing strip having a thermoplastic resin layer on the inner surface thereof is supplied intermittently. Then a reciprocable molding member having a sharp edge at the tip thereof is advanced through the sealing strip to a position where a molding cavity in the injection mold defining a pour-out hole of a closure cap or container is closed by a sealing piece punched out from the sealing strip, and thereafter a thermoplastic resin is injected into the molding cavity.

Abstract: Polyesters are drawn in the form of thick tows in a predrawing and a main drawing step. Predrawing is carried out at 71.degree.-90.degree. C. in water, and the predraw ratio is chosen in such a manner that the main drawing can be carried out at a minimum of draw tension. Between predrawing and main drawing, the tows cool to below 40.degree. C. Suitable draw ratios for the predrawing are from 1:1.05 to 1:1.6. The main drawing is carried out either in steam or hot water.FIG. 2 shows the curve of draw tension in the main drawing step as function of the draw ratio in the predrawing: there is a distinct minimum.

Abstract: A simplified method of making spin cast contact lenses having front and back aspheric surfaces and no effective refractive aspherosity when in place on a spherical cornea.

Abstract: Assemblages of fasteners are manufactured by molding connected individual fasteners and simultaneously stretching the connected fasteners while subjecting them to controlled heating using an insulated probe. The end members of the fasteners are protected from adverse heating effects.

Abstract: A method of forming a plurality of composite paperboard and plastic packages from a single blank of foldable paperboard. Each of the packages includes paperboard panels having at one end thereof an integral pocket for holding a packaged article. The pockets consist of shells which are formed integrally with the panels and have injected plastic therein covering the shells to form plastic liners.

Abstract: An improved machine for heating and die cutting plastic tape to form letters, numerals and other characters is disclosed which includes a rotatable disc-shaped print plate which defines a plurality of raised characters spaced in a circle on and around one broad surface thereof. The print plate includes a central hub, a thermally conductive backing plate attached to the hub but thermally isolated from the hub by thermally insulating washers disposed therebetween, and a thermally conductive print ring, containing the raised characters thereon, which is attached to the backing plate, and a heating ring including electrical resistance wire zig-zagging between a pair of sheets of electrically insulating rubber material, the heating ring being disposed between the backing plate and print ring.

Abstract: A method and apparatus for forming an optical transmission element having a fiber shaped optical waveguide loosely received in a tubular jacket containing a filling material characterized by introducing a fiber into a jacket as it is being extruded at an elevated temperature, cooling the jacket and fiber to a second temperature below said elevated temperature and above the ambient temperature, coiling the cooled jacket into a coil arrangement and while coiling controlling the rate of introduction of the fiber into the jacket so that the fiber lies on the inner diameter of each radius of curvature of the coil with the amount of retardation of the introduction and the amount of the second temperature above room temperature being arranged so that upon cooling to room temperature, the fiber has the desired length relationship to the length of the jacket.

Abstract: In a method for manufacturing a module for a fiber optic link, a plate-shaped transparent circuit unit is molded in advance. The circuit module is transfer molded together with an optoelectronic element connected to leads. The circuit module is clamped between a pair of rod-shaped first dies which have a common central axis and one of which defines an optical path of the module, in such a manner that the optoelectronic element is located on a central axis of the circuit module. Under this condition, the circuit module is housed in a cavity defined by a pair of second dies. A light-shielding molding material is injected into the cavity for injection molding to mold a case. After the case is cured, the first and second dies are removed, and the hole of the case formed by one of the first die is closed with a cap to complete a receptacle.

Abstract: Method and apparatus for stretching of fastener stock. The stock is of stretchable material and is engaged by members which are spaced apart at an angle and rotate at substantially the same peripheral speed in different planes to stretch the portion of the stock that extends between the members.

Abstract: A method of manufacturing an optical fiber cable of the type which compri at least one cellular cylindrical structure of plastic material having a plurality of longitudinal bores housing individual optical fibers and filled with a viscous substance. The viscous substance is injected around the fibers under pressure as they pass along tubes which each have a gap of some length so that said viscous substance can enter the tubes. The optical fibers coated with viscous substance are made to protrude beyond the ends of said tubes. A thermoplastic material is simultaneously extruded through an annular orifice and around the optical fibers under a pressure which is sufficient to completely surround said coated optical fibers. The cylindrical structure thus obtained is rapidly cooled.

Abstract: Truncated contact lenses are produced in a direct casting operation using a mold assembly of a male mold member and a female mold member, both of which have molding surfaces and only one of which is provided with an inwardly flexible continuous rim portion. When vulcanizable or polymerizable constituents are placed in the mold, the two mold members are brought together, the flexible rim is flexed inwardly and the finished lens of the desired shape is obtained. The flexible rim is composed of a circular portion having two ends and a straight line connecting the two ends. This defines a chord and provides the finished lens with the truncation desired.Preferably the lens also has a toric surface and prism ballast to assist in positional stability of the lens on the eye of the wearer.