Abstract: A number of layered vanadium oxide crystalline compositions are prepared by simple hydrothermal reactions. Generally, the compositions comprise parallel layers of mixed valence vanadium oxides with guest cations intercalated between the layers. The guest cations may comprise metal coordination complexes with bidentate ligands, monomeric ammonium or diammonium cations, or mixtures of alkali metal cations with monomeric ammonium cation or diammonium cations.

Abstract: A wall is disclosed for a gas turbine engine combustion chamber having a generally annular configuration around a central axis wherein the wall has an inner surface bounding at least a portion of the combustion chamber and a plurality of rows of cooling openings, each cooling opening having an elongated, generally rectangular configuration with a length l and a width e such that l is greater than e, the cooling openings in each row being equidistantly spaced apart a distance d in which d is not greater than the length l. The cooling openings of a given row are circumferentially displaced from cooling openings of an adjacent row and, since the distance d is not greater than the length l of the cooling openings, the opening areas overlap in adjacent rows to provide an even distribution of the cooling film within the combustion chamber.

Abstract: A motor-vehicle seat comprising a vertically elongated and upwardly open lateral hollow body, arranged substantially at one side of the backrest rearwardly of the seat cushion and providing a stand receptacle for umbrellas or similar articles.

Abstract: The invention concerns a shaft-hub joint between two equiaxial machine parts for transmission of high torques in a power train--a first machine part on the power input end and a second machine part of the power output end. The machine parts are joined to each other in a fashion movable relative to each other but rotationally fixed, and a positive-locking overload relief mechanism is provided between the machine parts, the individual locking elements of which are prestressed in the sense of locking. The overload relief mechanism locks the two machine parts against axial thrust up to a specific adjustable limit value whereby the positive locking will be eliminated when the limit value is exceeded. The interlocking elements comprise bolts with a head surface beveled in wedge fashion.

Abstract: Defibrillating device equipped with a plurality of connector/electrodes assemblies of different types. Defibrillating device equipped with a plurality of connector/electrodes assemblies of different types, having each at least a connector cable and adapted to be plugged in, in a removable and interchangeable manner, to the casing of the device at a single connection site equipped with a fixed complimentary connector, all of the control (13, 13') and, preferably, adjustment devices (17) of the functioning of the defibrillating device (1) being mounted on the connector (8)/electrodes (9, 9') assemblies, each type of which is intended for a class of authorized user and/or specific application(s), the casing (2) of the defibrillating device (1) having only indicator and/or display devices (2'), and preferably, no control or adjustment device.

Abstract: Double closing unit of an injection molding machine has a pair of movable mold mounting plates and a stationary mold mounting plate having a pair of stationary mold faces, aligned between the pair of movable mold mounting plates. Two pairs of bar members and a pair of locking units are provided so that each locking unit couples one of the pair of movable mold mounting plates to one of the pairs of bar members. A pair of pressure cushion systems located in the stationary mold mounting plate are each connected to one of the pair of movable mold mounting plates, the pair of pressure cushion systems being independent of each other. At least one pair of fast-motion cylinders is also provided, at least one cylinder being connected between each movable mold mounting plate and the stationary mold mounting plate. The cylinders hold one of the movable mold mounting plates in a closed position when the other movable mold mounting plate is in an open position.

Abstract: A carton blank including a reinforced hang tab. The hang tab includes a tab having an upper portion, a top edge defined by a fold line and a cutout formed in the upper portion. A foldover panel is connected to the tab at the fold line. The foldover panel has first and second side flaps and a middle bridge portion that define a notch formed in the foldover panel. Upon assembly, the foldover panel is folded along the fold line and secured to the tab so that the notch overlaps the tab cutout to form a reinforced hang tab with an opening formed therein. The first and second side flaps and the middle bridge portion of the foldover panel reinforce the opening and the upper portion of the upper tab to prevent the tab from easily ripping or breaking. The lower tab that is secured to the bottom portion of the upper tab is configured to correspond to the notch in the foldover panel.

Abstract: A headrest for motor vehicle seats wherein the two support rods of the headrest resilient body are fitted through a pair of tubular guide elements adapted to be rigidly connected to the structure of a seat backrest. The two tubular elements are formed by molded plastic material bushes whose mutual positioning is fixedly pre-set upon molding thereof.

Abstract: A device for controlling and regulating the relative speed between the scroll (4) and drum (2) of a centrifugal extractor, comprising a dc or ac electric motor (10), stator (10a) of which is made integral with drum (2) and rotor (10b) of which is made integral with a gear (7) which drives scroll (4) via appropriate means (7a, 8a, 14a; 7b, 8b, 14b) of connection, there being furthermore provided means (30a, 30b) for detecting the speeds of rotation of such rotor (10b) and stator (10a) and for converting them into a representative electric signal, and means (40, 50) for comparing such electric signals designed to emit a signal (D.sub.rs) capable of operating means (60; 1060) for supplying to rotor (10b) a current capable of compensating for any deviations of the parameters of the extractor from the programmed operating conditions.

Abstract: A method and apparatus are provided for measuring pressure in a combustion chamber of an internal combustion engine is provided with a non-intrusive, metal-embedded fiber optic pressure sensor. A Fabry-Perot Interferometer is arranged in a terminated, single mode fiber to function as a pressure gauge. The fiber Fabry-Perot Interferometer (FFPI) is embedded in a metal part which is disposed in the cylinder head of the engine. The metal part and FFPI experience a longitudinal compression in response to the pressure in the chamber. In another aspect of the invention, a non-intrusive fiber containing the FFPI is embedded in a hole drilled or otherwise provided in the metal housing of a spark plug. The spark plug is threaded into the cylinder head of an internal combustion engine and is directly exposed to the combustion chamber pressure. Consequently, the spark plug housing and FFPI experience a longitudinal strain in response to the pressure in the chamber.

Abstract: A headrest for motor vehicle seats whose support rods are slidable through respective tubular guide members for height adjustment of the headrest resilient body. The support rods are forwardly and rearwardly swingable around a transverse axis placed in proximity of the lower ends of the tubular guide members between a first angular position in which respective stationary restraining engage corresponding positioning notches of the support rods so as to prevent sliding thereof, and a second angular position in which sliding is enabled. The support rods are normally maintained in the first angular position by respective annular sliders slidably mounted over the tubular guide members.

Abstract: An essentially non-polluting, substantially non-toxic drilling fluid composition has been discovered that is particularly useful as a lubricant or spotting fluid in drilling oil and gas wells. The fluid comprises silicone which may be is mixed with an emulsifier for application in the water base mud system.

Abstract: An expandable clamp of the type that is used within a channel to compress a planar member within that channel against a wall of that channel. The clamp has an expandable bladder of an elongated cylindrical shape and a valve for introducing a gas or a liquid into the bladder for expanding it. Alternatively, the clamp may be manufactured with a closed bladder that is partially filled with a fluid. This closed bladder may be expanded by increasing the pressure on the fluid such as by compressing the fluid with a piston. The clamp is particularly suited for use in Standard Electronic Modules for providing more uniform contact between the frame of the electronic module and the card chassis of the instrumentation.

Abstract: With a process for manufacturing compostible thin-walled molded articles such as cups, plates, fast-food packagings, trays, flat sheets and the like, by applying a starch-based baking composition on the lower part of a multipart, preferably bipartite mold, to obtain a tough, durable article of high mechanical stability by using an essentially fat-free baking composition composed of water, a starch product, a release agent, and optionally further conventional additives, by baking the baking composition filling the mold, and by conditioning the resulting product to establish a moisture content of 6-22% by weight, the invention proposes the use, in addition to or instead of starch, of at least one modified starch selected from the group comprising starch esterified with organic acids or phosphoric acid, etherified starch, cross-linked starch and starch capable of being modified by ionic interaction.

Abstract: An oilfield stuffing box 10 employs mating flange plates 15, 16 with bolt holes appreciably larger in diameter than the bolts employed to hold the flange plates together, thereby permitting lateral displacement between the two flange plates. The lateral adjustment permits the tubular stuffing box section 13 carried centrally on the upper plate 15 to be centrally positioned about a polished rod 12 extending between the two flanges. The lower plate 15 is preferably integral with a well head section 14, and is also provided with the large diameter bolt holes to double the range of permitted lateral adjustment. The relative size of the bolts, bolt holes, polished rod diameter and well head diameter are selected for optimum lateral adjustment with a minimum practical hole-to-bolt size differential. A static seal 22 between the two mating flange plates provides a leak-proof seal at any of the different lateral positions between the two flanged sections 13, 14.

Abstract: A rotary vane internal combustion engine wherein the section of the rotor housing where ignition takes place is formed in the shape of a circular arc matching the curvature of the rotor, with the balance of the housing periphery being composed of a series of tangent arcs to define an elliptical shape that is continuously concave and has no drastic changes in curvature. The rotor and housing are "stretched" along their axial dimensions so that each combustion chamber has an axial measurement substantially greater than its circumferential measurement, and each segment of the rotor surface between adjacent vanes has formed therein a plurality of combustion chamber pockets spaced from one another along the axial dimension of the rotor and each provided with a spark plug.

Abstract: A non-contact laser-based sensor guided by a precision mechanical system scans a thread form producing a set of digitized images of the thread form. The digitized images are analyzed to derive quantitative information about thread characteristics such as pitch, lead, root radius, flank angle, surface roughness, helix variation, and pitch diameter. Thread form data may be stored and later retrieved in order to provide traceability and verification of thread form measurements to a predetermined thread form specification. The apparatus and method of the invention can measure characteristics for shapes similar to threads, such as gears and dies used for cold forming processes. The thread measurement system can be mounted on thread making machines and used for on-line monitoring and control of the thread forming process.

Abstract: Long acting narcotic compositions comprising a water-soluble analgesic or antagonist drug dispersed within a polymer matrix, methods of producing the same and treatments with the complex.

Abstract: A track work machine comprises a machine frame supported by undercarriages on the track for moving in an operating direction, a broom housing, and a ballast broom having a horizontal shaft extending in a transverse direction and rotatably mounted in the broom housing. A holding device is provided for temporarily storing the ballast broom, the holding device being mounted on the machine frame and comprising two bearing arms for supporting the horizontal shaft of the ballast broom, the bearing arms being spaced from each other in the transverse direction. A horizontal guide extends in the transverse direction and displaceably guides the holding device in the transverse direction, and a drive is connected to the holding device for displacing the holding device in the transverse direction.