Abstract: A change-over apparatus for use in conjunction with a cooling system of an internal combustion engine having an engine and radiator and having an upper hose between the radiator and the engine which has been cut to form an upper radiator hose section and an upper engine hose section wherein a change-over apparatus comprising at least one tubular body having first and second tube bodies having end openings, with the end opening for connection to said upper radiator hose section, said second end opening for connection to said upper engine hose section, a liquid ingress opening spaced from said first end opening, a liquid egress opening spaced from said second end opening, and, optionally, a flow regulating means placed between said liquid ingress opening and said liquid egress opening.

Abstract: In an edge gluing machine, a milling device (6) with a rotating milling tool (9) is provided for shaping the corners (7,8) of the projecting edge bands (14), its pivoting device (11) being arranged on a vertically adjustable housing (15). During the adjustment of the bridge (2) to the respective thickness of workpiece (3), the housing (15) is adjusted vertically by a displacing member (18) and by means of a limit switch (28,29) such that the pivot axis (11') of pivoting device (11) is located in the center of workpiece (3). A linear path control activatable by a light barrier causes the milling tool (9) to be positioned at half the thickness of the workpiece from the leading or trailing narrow surface of workpiece (3). The position of the pivot axis (11') is thereby determined such that a perfect machining of the corners (7,8) is ensured.

Abstract: A machine tool has a plurality of lubrication points to which lubricant must be delivered at specific maintenance intervals. At least some of the lubrication points are connected, via a system of lubricant lines, to a central delivery station for lubricant.

Abstract: The purging of residual fuel in gas turbine combustor fuel injectors is disclosed in which the fuel injector includes a fuel element having a first and second fuel passage for discharging the fuel to the combustor of the gas turbine. Upon interruption of the fuel to the fuel element, high pressure air is passed through an air passage to the first fuel passage to force the fuel in the reverse direction through the first fuel passage, through the second fuel passage, and discharge the residual fuel in each of the passages to the combustor through the second fuel passage.

Abstract: A holder for a tool comprises a tapered hollow shaft, having an upper opening, for clamping into a tool receptacle, and a coolant tube arranged in the interior of the tapered hollow shaft for delivery of coolant to the tool. The coolant tube comprises an inlet opening for coolant, facing the upper opening, as well as an upper tube section having a cylindrical outer enveloping surface with which, when the holder is clamped into the tool receptacle, a sealing ring, which is arranged in a delivery tube for coolant which then at least partly overlaps the coolant tube, is in contact. A cover for the inlet opening is provided, which prevents chips from getting into the coolant tube. In addition, a further tube section, the outside diameter of which is smaller than that of the upper tube section, adjoins the upper tube section at the bottom.

Abstract: A hubcap attached to a wheel hub wherein a chamber is formed between the hubcap and the wheel hub for housing a lubricating fluid for the associated wheel bearings. A vent passage extending through the hubcap is provided for relieving the pressure formed therein. A porous material is positioned to cover the vent passage for allowing a flow of gases to enter and exit the vent passage while preventing liquids and other contaminants from traveling therethrough. The porous material is held in a compressive abutting relationship to the hubcap surface by an enclosure which surrounds the vent passage and encases the porous material to shield the outer surface of the porous material from exposure to external grit and other contaminants. The enclosure further has at least one port to accommodate air flow to the porous material.

Abstract: A surgical technique for removing corneal tissue with scanned infrared radiation is disclosed which utilizes short mid-infrared laser pulses to provide a tissue removal mechanism based on photospallation. Photospallation is a photomechanical ablation mechanism which results from the absorption of incident radiation by the corneal tissue. Since photospallation is a mechanical ablation process, very little heat is generated in the unablated adjacent tissue. The disclosed surgical system includes a scanning beam delivery system which allows uniform irradiation of the treatment region and utilizes low energy outputs to achieve controlled tissue removal. A real-time servo-controlled dynamic eye tracker, based on a multiple-detector arrangement, is also disclosed which senses the motion of the eye and provides signals that are proportional to the errors in the lateral alignment of the eye relative to the axis of the laser beam.

Abstract: A process for the manufacture of a food product of the pizza type, in the shape of a pocket and edible as a sandwich, and the product obtained thereby. The process consists of: cooking a bottom raised pizza crust with its ingredients, of roughly rectangular shape, in a pizza oven, on the hearth and at the ambient heat of this oven, in the classical manner, up to a point near complete cooking; covering the bottom crust with its ingredients thus cooked with a thin raised pizza crust forming an envelope and enclosing the ingredients in a hermetic manner on the bottom crust, and making it one piece with the bottom crust by its edges; and placing the assembly obtained in the manner in the oven once again so as to cook the enveloped crust.

Abstract: A method of making a dental porcelain restoration comprises providing a soft-sintered dental porcelain pellet; milling the soft-sintered pellet under the control of a CAD/CAM system to provide a tooth structure; investing the tooth structure with an investment refractory material to provide an invested tooth structure; fusing the invested tooth structure; and removing the investment refractory material from the fused tooth structure to provide the dental restoration.

Abstract: Containers for medical use comprising a storage portion formed of a soft polyvinyl chloride resin containing a vinyl chloride resin and diundecyl pthalate (DUP) as a plasticizer wherein the sheet exhibits an oxygen permeability of about 9.0.times.10.sup.-10 to 22.0.times.10.sup.-10 cc.cm/cm2.sec.cmHg/22.degree. C. and a carbon dioxide permeability of about 6.0.times.10.sup.-9 to 19.0.times.10.sup.-9 cc.cm/cm2.sec.cmHg/22.degree. C. The containers are suitable for the storage of blood, especially the cellular components of blood. The invention also provides processes for making such containers as well as methods for storing blood cells using such containers.

Abstract: A hubcap attached to a wheel wherein a chamber is formed between the hubcap and the wheel for housing a lubricating fluid for the associated wheel bearings. A vent passage extending through the hubcap is provided for relieving the pressure formed in the chamber. A first one way valve is positioned to cover the vent passage for allowing a flow of gases to exit the vent passage while preventing liquids and other contaminants from entering the vent passage. A porous material is mounted across an air inlet passage extending through the hubcap for allowing air to enter the chamber. A second one way valve is mounted across the air inlet passage between the chamber and the porous material to shield the outer surface of the porous material from exposure to lubricating fluid from the chamber.

Abstract: A resin composition comprises an EVOH (A) and a thermoplastic polymer (B) having at least one functional group selected from the group consisting of boronic acid group, borinic acid group and boron-containing groups convertible into boronic acid group or borinic acid group in the presence of water. The composition may further comprise a thermoplastic polymer (C) other than (A) or (B). The resin compositions thus obtained have good compatibility and give molded products having superior transparency and good mechanical properties.

Abstract: A pressure-actuated valve of the type used in the fuel systems of gas turbine engines and the like combines the functions of check valve and metering valve in a housing forming a single assembly. A movable valve actuator is slidably movable along a central axis within the housing, The actuator has two spaced-apart valve faces that cooperate with two spaced apart valve seats mounted to the housing. One of the valve-seat/valve-face combinations controls flow through a primary outlet port from the housing, and the second combination controls fluid flow through a separate, secondary outlet. The second valve combination includes telescopically mating inner and outer wall surfaces having a metering passage in the outer wall characterized by a transverse cross-section that varies from a minimum to a maximum at its opposite ends. As the inner and outlet wall surfaces move relative to each other, the exposed cross-section of the metering passage increases to permit increased flow through the valve.

Abstract: A machining apparatus is disclosed which includes a rotatable tool turret having a plurality of modular machine tools removably supported thereon in circumferentially spaced apart relationship, a transmission assembly for effectuating the indexed rotation of the tool turret, and a multi-disc variable-speed drive system for independently driving each of the modular machine tools supported on the tool turret.

Abstract: An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.

Abstract: This invention concerns an electrical connector of the actuation handle type. This connector has an actuation handle (1) in the shape of a stirrup, mounted articulated on the casing of the fixed element or base (3) of the connector, handle (1) being provided with two inner grooves (25, 23), respectively open toward the top for manipulation of cover (7) and open toward the bottom for the manipulation of plug member (5), and cover (7) and plug member (5) each have two lateral catches (27, 29) cooperating respectively with said grooves (25, 23) for their said manipulation, handle (1) being, moreover, mounted articulated on a flexible axial joint (19) allowing easy passage through a hard point of entrainment of catches (27, 29) on the profile of each of grooves (25, 23) before locking at the end of the course of the grooves, with recall, by placing pressure on cover (7) or plug member (5) respectively in their closed or plugged-in position.

Abstract: A food supplement comprises isolated animal mesenchymal matter of fetal origin and extracts of animal organs of fetal origin, the mesenchymal matter consisting of a network of loose connective tissue and the food supplement being free of chemical preservatives.

Abstract: A process is provided for producing an additive-containing PTFE or other fluorocarbon polymer resin which achieves substantially complete and thorough homogeneous distribution of the selected additive within the polymer matrix. The selected additive and polymer are blended and then subjected to an air milling in an air impact pulverizer to achieve particle to particle impact and the homogeneous distribution of the additive in and among the polymer particles. The milled polymer-additive composite is paste extruded and further processed to form additive-containing PTFE products such as dental floss, insulating or conductive materials, laser markable materials, abrasion resistance materials and the like.

Abstract: A lens assembly is disclosed for a matrix lamp display which includes a reflector portion having a rear wall and plurality of peripheral walls extending forwardly therefrom, and a lens portion having a peripheral frame including structure for engaging the peripheral walls of the reflector portion, an inclined curved lens face extending forwardly from the frame, and a ventilated top wall extending rearwardly from an upper edge of the lens face to the frame.