Abstract: Trouser-fly pieces are sewn to a continuous slide fastener chain and at the same time are surged along a curved edge. Variable spacing between the surged curved edge and the line or lines of stitches sewing the fly pieces to the fastener chain is made by selective puckering of each fly piece between two sewing mechanisms. The trailing end of each fly piece is lifted during the sewing to permit the positioning of the next fly piece against a stop.

Abstract: A punch stripper for a multiple station high speed cold heading machine, such as a nut former, wherein the stripper is biased in the retraction direction and is advanced momentarily to strip the blank, being immediately withdrawn so that the working tip of the punch can be cooled during a substantial portion of the machine cycle. The stripper is advanced by means of a cam-actuated bell crank, and the stripper and punch are mounted for easy removal and replacement.

Abstract: A modular control device which may be used separately or in predetermined multiples to provide desired detection and correction functions along with appropriate control functions normally associated with current day aircraft flight control. The module includes a housing which makes provisions for a plurality of bores capable of receiving various types of valve mechanisms therein. Control valves such as a servovalve and a solenoid valve are affixed to the housing and are hydraulically interconnected with the valves disposed in the various bores. The module may be connected to a hydraulic actuator which is moved to in turn position a load in accordance with control signals applied to the control module.

Abstract: Water dispersible paints of improved leveling characteristics, suitable for use with water in the roller coating of metal articles, such as cans, and capable of being rapidly cured to a level, unribbed and unstreaked surface despite the presence of water, include as leveling agent in the paints a water insoluble N,N-dimethyl fatty acid amide, the fatty acid of which is of 6 to 14 carbon atoms.

Abstract: The method of drawing uniformly heavy walled parts in a multiple plunger machine without any intermediate anneals and a machine for carrying out the method. The method comprises a number of press operations which convert a flat blank to a final desired drawn configuration, the relatively uniform wall thickness being maintained throughout the operation by the mouth configuration of each die and by means of supplemental sleeves that assist the punches in extending the drawn shells into the dies with no stretch to the metal or thinning of walls. Work hardening due to stretch or tensile load is minimized allowing more deformation without anneals.

Abstract: A method and apparatus for forming a superplastic metal sheet features the utilization of a plunger movable within a chamber filled with finely divided particulate material to create a column of material arranged to bear against the metal sheet and effect mold forming thereof within a mold cavity heated to required superplastic forming temperature. The material additionally aids in minimizing loss of heat from the mold cavity and insures against non-uniform heating of the metal sheet.

Abstract: An ejector mechanism associated with the punch or punches in a header, operable to free the work blank from the punch after a heading blow so that the blank may remain in the die for a further forming blow, the mechanism including timing means to insure actuation of the ejector at the moment when the punch starts its withdrawal movement, as well as clearing of the ejector to prevent transmission of a load to the ejector mechanism on the heading blow.

Abstract: There is disclosed a wire clamp assembly which includes a screw member and washer or clamping member in mounted relation on the screw member, and adapted to provide a terminal assembly for a terminal block or the like. The washer or clamping member comprises a generally rectangular plate-like washer having a central aperture, engageable by the screw member to be advanced downwardly for clamping a wire or wires against the surface of a terminal member. The surface of the washer member facing the terminal member surface includes two pairs of opposed ramps spaced apart from the central aperture and extending downwardly and diverging outwardly toward the outer periphery of the washer member. The same or undersurface of the washer further includes downwardly sloping corners defining sloping edge portions, for biting engagement with the wire to establish and maintain, together with the ramps, electrical and mechanical connection between the wire and the terminal member.

Abstract: Coupling elements molded on connecting threads have projections or fins extending in a direction from the connecting threads toward heels of the elements; the projections are engaged within weft or filler thread loops on the inner edges of woven tapes supporting the coupling elements by the loops extending around the connecting threads. The projections inhibit twisting of the coupling elements.

Abstract: A slide fastener and method and apparatus for making the same is disclosed wherein the slide fastener chain includes a pair of carrier tapes with interlocking elements on adjacent edges thereof and portions of the tapes are compacted to constitute strips or bands arresting fiber slippage of the tape fabrics.

Abstract: A cushion includes a core, a shell surrounding the core, and a flexible membrane interposed between the core and the shell. Both the core and shell are formed from foam material, with the foam material of the core being substantially stiffer upon initial loading than the foam material of the shell. The membrane is also formed from foam material, but is quite a bit denser than the foam material of either the core or shell. The overall effect of the membrane and the different load bearing characteristics for the two foam materials is a cushion which is quite soft to touch, but nevertheless capable of supporting heavy loading without excessive deflection. The cushion is produced by placing the core, which is cut from slab foam, into a mold cavity and then molding the shell about it.

Abstract: A slide fastener is disclosed as being secured to garment edges which are to be detachably connected. The slide fastener includes a reinforced separating end stop attached to a pair of stringer tapes having interengaging elements operable by means of a slider. Reinforcing of the separating end stop is effected by tapered reinforcing means in grooves of a pre-corrugated section of a sized stringer tape disposed adjacent the end stop.

Abstract: An apparatus for attaching a load bearing line to a helicopter is disclosed that utilizes a curvilinear track mounted on the underside of the helicopter with a carriage having a cargo hook freely movable thereon. The curvilinear track has a radius of curvature that extends from the center of gravity of the helicopter to maintain forces imposed on the helicopter from a swinging load directed through a point near the center of gravity of the helicopter.

Abstract: A slider for a slide fastener is disclosed which includes a pull tab having stiffening ribs cooperating with grooves on the slider body. A pair of cam supports are also provided on the pull tab formed of the same stock as the ribs and serving as forming die for the cam members as well as cam supports.

Abstract: A split carrier for receiving bottom stops from a feeding chute is biased toward a raised position beneath a ram which upon downward movement forces the bottom stop and carrier downward where the forces of wing portions of the bottom stop engaging camming seating edges on respective halves of the carrier force the carrier halves apart and install the bottom stop on the slide fastener.

Abstract: A fabric backed cellular cushioning material is produced in a mold by introducing a liquid reaction mixture into a mold cavity and then covering the mold cavity with a coposite material consisting of a fabric backing and a thin layer of preformed cellular material attached to the backing. The preformed cellular material is presented toward the mold cavity. The reaction mixture expands into a cellular cushioning material, which assumes the shape of the cavity, the expansion being sufficient to enable the molded cellular material to completely fill the cavity and diffuse partially into as well as adhere to the preformed cellular material. The air displaced by the expanding reaction mixture passes out of the mold cavity through the preformed layer of cellular material, but once the expanding cellular material reaches the preformed layer, the mold cavity is sealed.

Abstract: A slider stop member has a flexible portion and a channel for slidably receiving coupling elements of a slide fastener. The stop member also has a prong for penetrating into a portion of the slide fastener when the flexible portion is forced inward together with a locking projection or abutment for securing the prong projecting in the slide fastener portion.

Abstract: In producing a dyeable coating on a metal article, such as a slider on a slide fastener, the article is coated with a powdered solid polymer resin containing active proton acceptor groups, such as amine groups. The powder coating is heated to convert the powder coating into a polymer film which is capable of being dyed by any of a wide variety of dyes to produce a desired color in the polymer film. During the heating, the temperature is maintained below the temperature at which substantially all the active proton acceptor groups would be transformed or rendered inactive.

Abstract: In the manufacture of trains of fastening elements for slide fasteners, flowable synthetic polymer resin is injected into gate or runner channels formed in a cavity wheel and extending beneath one edge of a band enclosing cavities of the cavity wheel such that the flowable synthetic polymer resin flows through the channels into the cavities to form fastening elements.

Abstract: The improved lockbolt collar comprises a substantially cylindrical first section and an outwardly flaring skirt connected to the cylindrical section. During the initial setting operation, the cylindrical portion of the collar is swaged into engagement with appropriate locking grooves on a lockbolt pin. In a second setting operation, the skirt is deformed inwardly so as to engage the locking grooves. As a result of the angular relationship of the skirt to the cylindrical section, the second setting step has the effect of elongating the collar to form a tightened joint.