Abstract: This invention provides a rotor sealing device used on an open-end spinning apparatus having a spinning rotor which forms therein air-discharge apertures, the opening in said spinning rotor being openably closed by a body member which has a fibers delivery aperture formed therein; said rotor sealing device being characterized in that a sealing member is inserted into the space located between said rotor opening and said body member positioned in opposite relation thereto. This device, though being of such a simple construction, is capable of improving the effect of rotor inside sealing over devices heretofore.

Abstract: A chopper type switching circuit having first and second transmission paths adapted to transmit a predetermined input signal to respective output terminals. First and second switching elements are connected respectively between the mid points of the first transmission path and a reference voltage line. A group of resistors are series connected between the output terminals. Third and fourth switching elements are connected respectively between the series connection points of the group of resistors and the reference voltage line. The first and fourth switching elements and the second and third switching elements are controlled to be alternately rendered conductive and non-conductive.

Abstract: A silver halide photographic light-sensitive material having a hydrophilic organic colloid layer containing a dispersion of a substantially water-insoluble photographic additive dissolved in a phosphoric acid ester represented by the following general formula (I): ##STR1## wherein R.sub.1 represents a saturated alicyclic group; and R.sub.2 and R.sub.3, which may be the same or different, each represents a saturated alicyclic group, an alkyl group or an aryl group.

Abstract: A method is disclosed for the preparation of implants, especially dental implants, from ceramic substances having in particular a porous surface which stimulates ingrowth of bone tissue.

Abstract: Mechanical control carried by a floating caliper 3 with friction pads 9a, 9b around a brake disc 1.A system A of drum cams 16-17 with four helicoidal inclined faces joined in pairs to transform a rotation movement of a control lever 11 into a translation movement imparted to friction pads 9a, 9b so that they clamp on disc 1.The drum cams make it possible to transform and amplify the rotation drive movement imparted by the control lever. Application to heavy vehicles, tractors, road equipment, etc.

Abstract: A wind motor blade of composite construction has a blade shell of plastics material reinforced internally by transverse ribs and intersecting longitudinal struts in which metal fork arms are embedded, the fork arms being connected to a metal root attachment spigot through a metal cross-piece encapsulated in the plastics material.

Abstract: Apparatus for distribution and preliminary separation of a vapor-liquid mixture in a separator with horizontal axis, from a neck 10 on the lower generatrix of the separator, it comprising two symmetrical deflectors 11, 12 in the form of portions of cylinders, with parallel axes perpendicular to that of the separator, each cut by two oblique planes, and completed by three partitions 17, 18. Their edges are provided with troughs 21 for collecting and discharging the water deposited on their concave surface, issuing into spaces separated from the neck. The invention has application to separator-superheaters for wet water vapor from an expansion turbine.

Abstract: A circuit breaker having stationary contactors provided for all of the poles thereof. Movable contactors are provided for all of the poles in correspondence to the stationary contactors. Stationary contacts are provided on the end portions of stationary contactors and movable contacts are disposed on the end portions of the movable contactors. The movable contactors are movable from the stationary contactors by electromagnetic force to open respective circuits before the circuit breaker is opened by an overcurrent tripping device when large current such as short-circuit current flows. Holders adapted to hold the movable contactors of all of the poles are mounted on a common rotatable insulating rod, one of the holders being provided with a latch which is turnable around a rod provided on the holder. A slot is normally engaged with the latch, and when disengaged from the latch, a rod can be turned by the holder.

Abstract: Each key of the pedalboard is supported and guided for pivotal movement in a vertical plane by a steel strip secured to the underside of each key adjacent the midportion thereof. The rear end of each key is operatively connected to a transversely extending rear frame for horizontal reciprocating movement perpendicular to the rear frame and the forward end of each key is disposed between transversely extending upper and lower and front frame members for limited vertical movement therebetween. The forward end of each steel strip is secured to the lower front frame member to normally bias the forward end of each key into engagement with the upper front frame member.

Abstract: The present invention relates to novel treating agents for treating waste water containing dyes and/or other organic substances, a process for treating said waste water by using said treating agent, and an equipment for the same.The treating agent is prepared by mixing component A comprising a water-insoluble calcium salts and component B consisting mainly of aluminum hydroxide, aluminum oxide or a mixture thereof at a molar ratio of 3:1 to 1:3 and heating said mixture of components A and B as such or after granulation at a temperature between 100.degree. C. and 450.degree. C.The treating agent thus obtained has excellent adsorption and oxidative ability and is capable of easily clarifying waste water discharged from fiber processing plants that contains a variety of dyes and other organic substances, for example, sizing agents such as starch, polyvinyl alcohol and C.M.C.

Abstract: A faucet has a sealing member clamped at its periphery and overlying an orifice through which fluid is to flow. Pressure applying means maintains the sealing member in sealing engagement with the wall defining the orifice. Upon removal of the pressure applying means the sealing member moves away from the orifice to permit flow.The pressure applying means is located in a valve body which is screwed into the faucet housing and acts to change the periphery of the sealing member. The valve body may be removed by removing the handle and engaging a pair of projections within the handle with a pair of ears on the valve body. The sealing member is thus unclamped and easily removed.

Abstract: The cortisol compound of the formula (E) ##STR1## wherein R represents a hydroxy group, a tyrosine lower alkyl ester residue, a tyramine residue, a histamine residue, a 7-aminoheptanoyl-tyrosine lower alkyl ester residue, a radioiodinated tyrosine lower alkyl ester residue, a radioiodinated tyramine residue, a radioiodinated histamine residue, a radioiodinated 7-aminoheptanoyltyrosine lower alkyl ester residue, a protein or a polypeptide; and a radioimmunoassay method using cortisol derivative.

Abstract: A heat recovery system for the production of mechanical energy from a plurality of different heat sources at different temperatures comprises a plurality of heat exchangers associated one with each heat source, a plurality of circuits for a working fluid which traverses the heat exchangers, the circuits including expansion devices in which the working fluid is expanded and possibly vaporized to derive mechanical work from it, this being accompanied by a fall in temperature; the circuits for the working fluid have certain parts in common, such as the heat exchanger associated with the heat source at the lowest temperature, at least one of the expansion devices, a condenser in which working fluid vaporized in the expanders can be recondensed, and a circulation pump for driving the working fluid around the circuits.

Abstract: Measuring apparatus for providing a reading representing a magnetic field component or the electric field component of incident radio frequency electromagnetic radiation comprises a set of magnetic field sensors and a set of electric field sensors interchangeably connectable to a measuring device which has an indicator instrument and an optical output to which can be connected a repeater device by means of an optical fibre cable which thus does not exert a perturbing influence on the field being measured. The sensors are omnidirectional balanced devices in which the detector elements are constituted by suitably shaped metallic film deposits on dielectric substrates, and can be interchanged by a simple plug-in connection which also holds the sensor physically in position on the measuring device.

Abstract: A method of preventing tarnishing of a polished glass article comprising storing the polished glass article under a reduced pressure of less than 10.sup.-2 mm Hg before applying a metal, a metal oxide or fluoride coating to the surface of the polished glass.

Abstract: Porous film materials composed of polytetrafluoroethylene having an asymmetric structure are produced by stretching the film using a pair of revolving rolls which are heated to a temperature lower than the melting point of the film. Stretching is produced by revolving the two rolls at different speeds which also tends to produce a compressive force in the thickness of the film. The rolls are heated to different temperatures to produce a temperature difference of preferably 50.degree. C. or more. The combination of the compressive force and the temperature gradient in the thickness of the film is believed to produce the asymmetric structure in the resulting porous film materials which are characterized by a fiber structure in the surface which is different from that in the back.

Abstract: A compound valve device comprises a body member, a first valve member being located in the body member and controlling the fluid communication between a first input port and a first output port, and a second valve member being located in the body member and controlling the fluid communication between a second input port and a second output port. The two valve members operate in sequence, without a significant difference in time in response to one signal pressure.

Abstract: The method for processing a mixture of air and rare gases consisting especially of xenon and krypton which are at least partially radioactive and especially for processing gaseous effluents arising from the reprocessing of irradiated fuels comprises a step involving concentration of the rare gases in solution in liquid argon by cryogenic distillation of the light gases and mainly nitrogen from the liquefied mixture.

Abstract: A monolithic support for a catalyst suitable for use in controlling carbon monoxide emission is prepared by forming a homogeneous, fluid semi-solid mass by admixing colloidal .gamma. alumina, .alpha. alumina monohydrate and ceramic fibres with fluidizing and binding agents, water and a mineral acid, said acid being used in an amount sufficient to convert said .alpha. Al.sub.2 O.sub.3 monohydrate into a gel, forming the mass into a body of the desired shape, drying the body to substantially remove the added water, at least 10% of said added water being removed at a temperature lower than 50.degree. C., and heat-treating the dried body at 800.degree.-1000.degree. C.