Abstract: A process and a plant for manufacturing decorative panels or slabs of granular or particulate mineral material bound by a binder are provided in which at least one bottom or base layer comprising an intimate mixture of said material and said binder is continuously formed and at least one upper decorative layer constituted by the same materials but in which the binder is colored is continuously applied to the base layer followed by pre-compression, diversion into slabs, pressing and baking.

Abstract: A process and device for measuring the isotope ratio, specifically of stable isotopes, of chemical substances in a gas to be examined, the process including alternately charging a sample cell with a reference gas and a measuring gas containing the gas to be examined; adding a metrologically neutral gas to the gas to be examined; varying the mixing ratio of this measuring gas by changing the share of neutral gas being added; and calculation of the isotope ratio V.sub.p of the substance according to the equation: ##EQU1## The device includes a White cell having mirrors on each end of the longitudinal length of the cell, a pair of first beam openings located on a longitudinal end, a pair of second beam openings in spaced parallelism on the longitudinal sides of the White cell and a gas inlet and gas outlet located near each mirror.

Abstract: To support a filament, or filament structure, in a halogen incandescent l, which may have a V or U filament, a straight filament, or be of the lumiline type, support ribs are placed within the lamp, which support ribs are formed from the lamp bulb material itself, by deforming the lamp bulb after local softening, for example by punches or by applying a vacuum, to provide interiorly extending, essentially tubular ribs. The tubular ribs may have circular or oval cross section, and can be placed to engage the filament to, for example, pinch the filament therebetween. In the pinching regions, the filament preferably is straight or only single-coiled and may be supported by a core pin.

Abstract: An apparatus (1) for metering dry and pulverulent pourable material, for example dye powder in a laboratory dyeing line for textiles, the apparatus (1) having a discharge container (8) which has a closable outlet (9) in its lower region, scales (10) for metering the amount of material that is to be conveyed from the outlet (9) of the container (8), with outlet (9) being arranged on the underside of the container (8) and having as closure a valve body (12) that tapers towards the top and can be displaced vertically downwards, the valve body (12) being drivable in rotation and rotating while it is in its open position and having the capability for conveying the material in the direction towards the outlet opening (14), therefore performing a dual function.

Abstract: Highly viscous adducts of 1,2-butylene oxide with secondary or primary alcohols are prepared in the presence of an alkali as a catalyst.

Abstract: A seismometer system which provides readouts of the time integral (Cumulative Absolute Velocity or CAV) of the acceleration time history of an earthquake. CAV is found to be a measure of the structural damage potential of an earthquake. Three triaxial low frequency acceleration sensors are connected into a digital computer system. Each sensor has a capacitive pickoff, whose capacitances determines the length of an electrical pulse; the pulse gates high-frequency clock cycles into a counter. The counts are summed to give the time integral. A microprocessor provides for periodic re-zeroing and other calibration functions, and for the actuation of alarms, relays and electrical pulses for utility shutoff and the like at predetermined levels of CAV. The acceleration time history of the earthquake is stored in the memory for later retrieval if desired. The whole system is contained in a small inexpensive package.

Abstract: A lifting platform for motor vehicles consisting of a least one lifting cylinder arranged in a covered pit at whose upper end supporting elements for the motor vehicle are attached, a high-pressure unit for supplying pressurized oil to the lifting cylinder and a guide bushing for the lifting cylinder attached to supporting frame anchored in the foundation of the pit. A central rod mounted on the bottom of the pit projects into the lifting cylinder and is sealed with respect to the lower end of the lifting cylinder by a ring gasket and its upper end face forms a pressure face. In the inside wall of each guide bushing there is at least one lubricating channel which is in flow connection with the pressurized oil return line with each lowering stroke of the lifting cylinder or the lifting platform.

Abstract: A transition-metal catalyst component for a Ziegler catalyst system, obtainable by1) mixing, in a solvent, an inorganic, oxidic carrier with1.1) a vanadium trihalide alcohol complex of the formula VY.sub.3.nZ--OH, whereY is chlorine or bromine,n is from 1 to 6, andZ is a monovalent, saturated, aliphatic, aromatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms, and1.2) a titanium halide or a titanium trihalide/aluminum trihalide complex, where the halogen can be chlorine and/or bromine, or a titanium trihalide complex of the formula TiY.sub.3.nZ--OH or mixtures thereof, whereY is chlorine or bromine,n is from 1 to 6, andZ is a monovalent, saturated, aliphatic, aromatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms, and1.3) a compound of the formula BX.sub.n Y.sub.m R.sub.p or SiX.sub.n Y.sub.m R.sub.q or mixtures thereof, whereX is OR,Y is chlorine, bromine or hydrogen, andR is a C.sub.1 - to C.sub.

Abstract: An autonomous radio timepiece comprises a casing and a bracelet attached thereto. The casing includes an operating circuit, while the bracelet carries a flexible antenna. The antenna can be removed from the bracelet in the event that the bracelet is worn and must be discarded. The antenna carries a plug-in type connector at one end which is adapted to make a tight sealing connection with the casing, and is also adapted to electrically connect the antenna with the circuit of the casing. The circuit within the casing includes a receiver which is fixedly tuned as a function of the antenna inductivity of a foil core to the time message transmitter. Also provided is a variable automatic supplemental tuner to compensate for bending of the bracelet while the receiver is actuated. The antenna comprises a foil of an insulting material on which an antenna conductor is printed, along with two shielding conductors extending parallel to the antenna conductor.

Abstract: A process for the preparation of a base oil and middle distillate which is stable to oxidation and low temperature from a mineral oil fraction having a boiling range above 350.degree. C., by, in a first step, converting the mineral oil fraction on a hydrocracking catalyst under hydrocracking conditions to an extent of from 20 to 80% by weight into fractions which boil below 360.degree. C., separating the reactor effluent, if necessary, into liquid and gas phases in a high-pressure separator, treating the entire reactor effluent or only the liquid phase, directly or after removal of the fractions boiling below 360.degree. C. by distillation, in a second step with hydrogen at from 200.degree. to 450.degree. C.

Abstract: The invention relates to dialkoxybenzylidene-camphor derivatives of the formula I ##STR1## in which R.sup.1 and R.sup.2, in each case independently of one another, are a straight-chain or branched alkyl radical having 1 to 10 c atoms, andX is H or SO.sub.3 H,and to a process for their preparation and their use in cosmetic and pharmaceutical preparations.

Abstract: A dissolution cell for determining the kinetics of dissolution of a solid substance in a particular liquid, includes (a) a housing receptacle having a closed bottom end and an open top end, an interior of such receptacle defining (i) a lowermost upwardly diverging conical zone provided with liquid inlet means extending from a tip of the conical zone through the bottom end of the receptacle, (ii) a first essentially cylindrical zone surmounting the conical zone and (iii) a second essentially cylindrical zone surmounting the first essentially cylindrical zone, having a cross-sectional diameter greater than that of the first essentially cylindrical zone and being in communicating relationship therewith, such conical zone (i) and such first essentially cylindrical zone (ii) defining a chamber for the dissolution of a solid substance in a liquid solvent, (b) a closure leak-proofedly secured to the open end of the receptacle and provided with a solute outlet means, and (c) filtration means secured between such clos

Abstract: This disclosure related to a method and reagents for determining tetrahydrocannabinoids (THC) and THC metabolites in a biological fluid such as urine. In particular, this disclosure relates to a fluorescence polarization immunoassay procedure for determining the presence of THC and to a novel class of tracer compounds employed as reagents in such procedures. The procedure described also provides for novel wash reagent for a THC fluorescence polarization assay.

Abstract: A transition-metal catalyst component for a Ziegler catalyst system, obtainable by1) mixing, in a solvent, an inorganic, oxidic carrier with1.1) a vanadium trihalide/alcohol complex of the formula VY.sub.3 nZ-OH, whereY is chlorine or bromine,N is from 1 to 6, andZ is a monovalent, saturated, aliphatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms, and1.2) a titanium trihalide or a titanium trihalide/aluminum trihalide complex, where the halogen can be chlorine and/or bromine, or a titanium trihalide complex of the formula TiY.sub.3. nZ-OH or a mixture thereof, whereY is chlorine or bromine,n is from 1 to 6, andZ is a monovalent, saturated, aliphatic or araliphatic hydrocarbon radical having not more than 10 carbon atoms or a mixture thereof, and1.3) a zirconium tetrahalide, where the halogen can be chlorine and/or bromine,2) removing the solvent by evaporation,3) mixing the solid-phase intermediate from step (2) with3.1) an organoaluminum catalyst component of the formula AlR.sub.

Abstract: Aluminum magnesium hydroxy compounds of the formulaAl.sub.x Mg.sub.y (OH).sub.35-z R.sub.z.nH.sub.2 Oin which R represents an anion of at least one monocarboxylic acid having from 2 to 22 carbon atoms, and n, x, y and z are defined by: ##EQU1## are described.

Abstract: Disclosed herein is a fire-resistant textile yarn comprising a core formed from an inorganic filament surrounded by fibres formed entirely or in part from aramid resin. Also disclosed is a fire-resistant textile yarn comprising a core formed from a ply yarn comprising double-threaded - multi-glass filaments, the core being surrounded by fibres formed entirely or in part from aramid resin.

Abstract: An intake duct in a cylinder head of an internal-combustion engine has a defined flow profile by which the flow rate of the gas flow is accelerated continuously, specifically up to a first intake duct segment of the intake duct which, as viewed in the flow direction, is situated in front of the valve stem. Subsequently, in a second intake duct segment, the flow rate of the gas flow is reduced continuously, whereby a lower approach flow rate of the valve is achieved. This results in an optimized volumetric efficiency which has a favorable influence on the performance and consumption of the internal-combustion engine.

Abstract: A circuit for adjusting the impedance of a plasma section to a high-frequency generator wherein three capacitors are connected in series between the high-frequency generator and an electrode of the plasma section; located between the generator and the electrode are two parallel oscillatory circuits.

Abstract: A process and device for heating the intake air in internal-combustion engines by means of a flame starting system is disclosed which contains at least one heater plug and has a control unit which supplies the heater plug with voltage for a specific preheating time.

Abstract: This arrangement enables the identification of a plurality of vehicles (4) and determination of the instant of their passing over a reference line (30). It includes a moving station (1) mounted on the vehicle and a fixed station (2) arranged alongside a racetrack (3). The fixed station broadcasts a low-frequency synchronization signal of period T which is received by the moving station, the latter in turn broadcasting a series of signals of duration Tn located in a predetermined rank relative to the time t.sub.o marking each start of period T. Conjointly the moving station allocates an identification code peculiar to a given moving object to each signal Tn. The signals received by the fixed station are stored in a memory which for each signal memorizes its absolute time, its association with a given vehicle and its amplitude. The arrangement is used for motor vehicle races which include a large number of competitors.