Abstract: Naval power cable comprises a plurality of insulated electrical conductors, at least a pair of strip cords, a water blocking layer, and a jacket layer. Each electrical conductor has a longitudinal extent and is helically intertwined with the other electrical conductors, to form a core conductor assembly having at least a pair of outer interstices adjacent to the insulated electrical conductors. Each strip cord is disposed in and extends along one of the outer interstices of the core conductor assembly. The water blocking layer is disposed about the core conductor assembly and the strip cords, and prevents passage of water along interstices about the electrical conductors. The jacket layer is disposed over and adjacent to the water blocking layer. To provide a power cable construction which has superior physical strength, toughness and resistance to damage, the water blocking layer and jacket layers, are formed from first and second cross-linkable materials, respectively.

Abstract: An electro-optical system and method are disclosed for modulating the intensity of light rays propagating towards an optical element, such as an eye, a lens or aperture stop in a camera station, a camera station in a machine vision system, or other image detection device. The electro-optical system comprises an electro-optical element having a optically transparent surface having electrically addressable pixels. Each pixel has a light transmittance which is controllable by a controller that is operably associated with a computer system. An image acquisition device, such as a camera station, acquires an image of a spatial scene within the field of view of the optical element. The computer system processes the image to determine which pixels are to be addressed and actively driven in order to modulate (i.e. decrease) the intensity of incident light rays propagating through the determined pixels, towards the optical element.

Abstract: A beryllium metal matrix phase includes up to 70% by volume of beryllium oxide single crystals dispersed therein. The composites are useful for electronics applications because of their light weight, high strength and effective thermal properties.

Abstract: An external fixator for osteosynthesis features application to the fixation of fractures of small bones such as those of the hand or foot. A small central unit contains two ball joints which are releasably clamped via a single actuation. Bone fasteners, such as bone pins or bone screws are releasably clamped, via a single actuation at each of two clamping units, and each of the clamping units is adjustably clamped to a carrier rod within a wide range of selected positions, which extends to the smallest of offsets from the central double-ball joint unit, by reason of the fact that the ball of each ball joint is the inner end of one of the respective carrier rods.

Abstract: A method is provided for the dissolution of at least one precious metal selected from the group consisting of platinum group metals, gold and silver. The method comprises subjecting a material containing at least one of the precious metals to dissolution with a sulfuric acid solution maintained at a pH at least sufficient to complex the precious metal with bromide ions in the presence of an oxidizing agent, the amount of bromide ions in the solution being at least sufficient to form a soluble complex of the precious metal. The amount of oxidizing agent is at least sufficient to maintain a redox potential at least high enough to convert the precious metal to an ionic form conducive to forming a soluble bromide complex thereof.

Abstract: An artificial airway device to facilitate lung ventilation in an unconscious patient comprises a rigid airway tube (10), which is curved to follow the airway of the patient, opening into the interior space or lumen of a mask portion (12) whose periphery (14) is adapted to seal around the inlet (36) to the larynx (38), and a rigid handle (9) mounted at the outer end of the airway tube (10) and curved away from the mouth of the airway tube (10).

Abstract: A tassel is formed from a cord which comprises a plurality of twisted ply yarns or strands. A knot is tied in the cord to separate an end portion from a main length of the cord and the end portion is immersed in liquid to cause the yarns or filaments there to untwist and form a loose tuft. This process is advantageously carried out in hot liquid and by using a hot dye bath the dyeing of the tassel and the formation of its tuft are achieved simultaneously.

Abstract: The invention contemplates a surgically implantable device for controlled drainage flow of aqueous fluid from the anterior chamber of the eye into nearby subconjunctival space, all in relief of a glaucomatous condition of excessive pressure within the eye. The device includes provision for so controlling the rate of aqueous flow as to assure against anterior-chamber collapse, thus avoiding irreparable damage which might otherwise result to the corneal endothelium, to the iris, or to the lens of the eye.

Abstract: An improved method for controlling the clamping forces exerted on opposing sidewalls of a casting mold during a continuous casting operation, which comprises the steps of presetting the mold for the maximum load to be experienced by the sidewalls of the mold, securing the mold at the presetting, and, through displacement measuring devices and hydraulic spring mechanisms, controlling the forces exerted upon the sidewalls during the continuous casting operation as a function of the thermodynamic stresses to which the mold is subjected.

Abstract: An inflatable artificial golf green is designed for use at driving ranges. The target green structure is formed at an incline to provide users of the golf range the appearance of a much larger target surface due to the perspective effects when viewing an inclined object from a distance. The construction of the target green is sectional to facilitate transportation. The landing surface includes artificial turf and an energy absorbing pad for more realistic performance.

Abstract: A method of erosive cutting of a hard material such as rock utilizes two spaced clusters of jets for high-pressure discharge of fluid in the course of their movement along the same longitudinal path over the hard material. One of the jet clusters has a fixed orientation for multiple-jet discharge at the hard material, while the other cluster of jets is subjected to oscillating excursions transverse to the direction of the path that both clusters are caused to follow. A cooling medium is directed at the working site between the two clusters. The result is a faster working rate and a more cleanly defined groove in the hard material, along the path of movement.

Abstract: A laryngeal mask has an inflatable ring configured, upon inflation, to establish a peripheral seal around a patient's laryngeal inlet. Installation (insertion) is made in the fully deflated state, wherein the structural relation between the body of the mask and the inflatable ring is such that deflated ring surfaces become tightly opposed to each other so as to form a thin flange which peripherally surrounds the body of the mask and is concave on the posterior side of the mask; the concave flange effectively displaces all ring material away from the aperture of the mask, in the manner of the upturned brim of a hat. The concave flange is softly yieldable in its confinement by local body structures encountered in the course of mask insertion.

Abstract: A work station for use by a trader of securities on an established market. The work station is integrated into a network of competing market makers for a plurality of securities for trading. A centralized database provides a feed of data on current market events for the securities, including price and transaction data. The work station is specifically programmed to receive the feed of data from the database and convert this datastream into a form conducive to enhanced trading. Seven separate applications permit the trader to track the market, select securities, bid and ask pricing, market direction and market depth. Traders equipped with the workstation are capable of entering transactions with more complete and copious knowledge about the extant market.

Abstract: A coin dispensing device comprises a hopper 1 where a supply of coins is held in bulk. The coins are transported one by one on a coin dispensing disc 3 rotatably supported by a rotary shaft 2 for use in dispensing a coin. A base plate 20 is opposed to the coin dispensing disc 3 at a predetermined distance. The coin dispensing device also comprises guide holes 14 penetrating through the coin dispensing disc 3. Each of the guide holes 14 receives one of agitating members 13 which travels along a predetermined orbit on the base plate 20 accompanying with rotation of the coin dispensing disc 3. An extrusion member 50 is disposed on the base plate 20 along the orbit. The extrusion member 50 has a predetermined relative height to the base plate 20 to make a portion of the agitating member be protruded, as the agitation protruding end 13a, through the guide hole 14 from the coin dispensing disc 3 when the agitating member 13 passes on the extrusion member 50 along the orbit.

Abstract: In a coin sorting device which rolls a coin along a sorting passage and which carries out a sorting operation for the coin during movement of the coin, it is readily possible to remove unnecessary material from the sorting passage. The unnecessary material may be surface material which is separated from the coin. If the unnecessary material is left in the sorting passage, it becomes one of factors which cause an error in the sorting operation. Inasmuch as the unnecessary material can be readily removed from the sorting passage, reliability is improved as regards the sorting operation. For removing the unnecessary material, a plurality of through holes may be made to a bottom of the sorting passage. A roller member may be used at the bottom of the sorting passage instead of making the through holes.

Abstract: A method is provided for recovering at least one platinum group metal from an ore containing the same. The method comprises reducing the particle size of the ore to provide the platinum group metal in a leachable condition following which the ore is subjected to leaching with a sulfuric acid solution maintained at a pH of less than 1 during leaching. The solution contains an amount of a soluble bromide compound at least sufficient to complex the platinum group metal while maintaining an amount of an oxidizing agent dissolved in the solutions at least sufficient to maintain the platinum group metal in an ionic form conducive to forming a soluble bromide complex, thereby dissolving substantial amounts of the platinum group metal.

Abstract: A bone-screw or the like clamping coupling comprises two articulated half shells which must be bolted to each other for assembly to bone screws or the like. Articulation is via loosely pivoted interconnection of the half shells at one longitudinal end of the coupling, and one of the half shells carries ball-joint connection structure that is adapted for selectively detachable connection to an external fixator that has a coacting ball-joint connecting formation.

Abstract: This invention is directed to caddy devices mountable on non-porous surfaces by means of suction cups which are easily repositioned in all directions. The devices are characterized by streamlined frame portions, support elements for slidably receiving suction cups and recessed covers that conceal the mounting apparatus from plain view. The disclosed configurations insure close attachment of the caddy device to the mounting surface. Stabilizing structures are also provided for the caddy frame. In various illustrated embodiments, the caddy can be a towel ring, toilet tissue holder, storage rack or multipurpose organizer.