Abstract: An ornamental ring having a flashing capacity controlled by a minute electrical circuit incorporating one or more light-emitting diodes which are confined in the gem-display region of the ring, is disclosed. A time delay, capacitor-resistor arrangement governs the activation and deactivation of a pair of transistors whose function is to cause the light-emitting diodes to alternately flash or blink in substantially identical intervals.

Abstract: A die holder comprising a housing in which is freely journaled a spindle, the spindle terminating in a free end portion capable of supporting a die. A collar is mounted upon the spindle and is associated with a position-referencing system which governs an at-rest position of the spindle relative to the housing. At least one shearable pin or lug fixedly secures the collar to the spindle, the lug having a shear-resistance below the bending and shear-resistance of the spindle, the collar and the housing so as to be capable of shearing in the presence of the application of an excessive torque to the spindle before any damage occurs to the remainder of the die holder. The die holder also includes a releasable spring-clutch device interposed between the spindle and housing for overcoming any rotary force exerted against the spindle tending to rotate the latter to its at-rest position before the die held by the die holder is fully released from a workpiece.

Abstract: A method of molding elastomeric stock, the method comprising interposing an apertured, heat-resistant, flexible, insulation plate between a heated mold and the discharge portion of an elastomeric stock injection unit such that respective mold cavities provided in the mold are aligned with respective apertures in the insulation plate which intercommunicate the mold cavities with an internal discharge chamber in the injection unit. The mold and injection unit are moved relative to one another such that each presses against the other through the intermediary of the insulation plate, thereby permitting expulsion and transferring of a portion of elastomeric stock from the injection unit into the mold cavities to be cured, an excess portion of elastomeric stock remaining in the injection unit being prevented from undergoing curing by means of the presence of the insulation plate.

Abstract: Method and apparatus for coating a fabric with elastomeric stock, wherein improved impregnation of the interstices of the fabric is achieved, the method comprising concomitantly feeding both elastomeric stock and a fabric in pressurized contact with one another between mutually confronting stationary and movable surfaces. The mutually confronting surfaces converge toward one another and cooperatively define a pressure chamber terminating in a restriction orifice. The movable surface is driven in a direction of feed of both the stock and fabric to frictionally carry and wedge both into and through the pressure chamber, thereby causing the interstices of the fabric to be increasingly impregnated by the stock.

Abstract: A raw pneumatic tire carcass having an uncured, elastomeric, annular body and an uncured, elastomeric, liner superposed upon and affixed to the internal surface of the body, is disclosed. The liner in one form thereof includes bead-communicating recesses for venting fluid from between the liner and an inflatable bladder used in a mold for effecting inflation of the body and liner from a cylinder to a torus. The liner in the latter form is constituted of an appropriate thermoplastic material which, when engaged and inflated by a smooth surface of the bladder and vulcanized, undergoes a transformation in which the recessess gradually disappear substantially and are transformed into a correspondingly smooth surface. A second form of the liner (which is preferably incorporated as part of the first said form of the liner) is represented by a convexity on at least one surface of the liner.

Abstract: A fabric for reinforcing rubber or rubber-like belts, the fabric comprising weft cords interlaced with and extending transversely of warp cords to retain the latter in parallel relation, the warp cords being constituted of synthetic spun yarn having no greater than two single ends plied together. The foregoing abstract is neither intended to define the invention disclosed in the specification, nor is it intended to limit the scope of the invention in any way.