A port assembly for delivering fluid through a shell of a rotary kiln is disclosed with structures for screening and excluding particulate matter from the port during operation of the kiln. The port assembly comprises a cylindrical nozzle defining a nozzle orifice to deliver fluid to the interior of a kiln. A base member secured to one side of the nozzle is provided with a platform extending partl...

The motorized rest for supporting the piece being worked by grinding machines for cylinders, rollers and the like, according to the invention, consists of a fixed lower body suitable for being joined to a bench of the grinding machine, on which an upper body is slidingly arranged so as to be movable transverse to the axis of rotation of the piece, provided with two or more sliding blocks for suppo...

For use as a heat sealable, high temperature, insulative wrapping, a laminar structure of a polyimide inner layer and two fluoropolymer outer layers wherein the outer layers are pigmented for a combination of color, increased heat aged bond retention, and reduced heat seal energy requirements.

Data are transmitted through a column of drilling mud in a drill string that is being used in drilling a borehole in an underground formation. The data are in the form of pressure waves (such as pressure pulses) and are generated by means of a downhole mud motor that is driven by the drilling mud. The pressure waves are generated by varying the load on the mud motor according to a predetermined pa...

The invention relates to a process for dulling the surfaces of elastomeric, unvulcanised mouldings or semi-finished products in which unvulcanised powder rubber is present as release agent. The process gives good dulling and improved product quality, in particular of articles produced by vulcanisation.

A process for producing polycarbonate resin particles from a methylene chloride solution of a polycarbonate resin obtained by the polycondensation of a dihydroxydiaryl compound and phosgene, which comprises continuously supplying the methylene chloride solution of the polycarbonate resin to a particle-forming vessel, heating it while maintaining it in a suspended state in water to evaporate methyl...

A filter material is described for separating off particles having a diameter < about 100 mu m from a fluid stream, in particular a hot gas stream, which filter material has a fibre-containing support material (3), furnished with cavities (9), and a filter medium layer (2) arranged thereon on one side. In this case, the filter medium layer (2) includes a three-dimensionally crosslinked silicone e...

In a lip sealing ring, in particular for sealing off rotating shafts, with a sealing washer clamped between a housing ring and a clamping ring, an axial limb, provided with a sealing profile, of the sealing washer forms an additional static seal in relation to the housing, and this seal is protected from extrusion of the material of the sealing washer and hence from becoming leaky in continuous op...

To protect brake fluid against evaporation under extreme braking conditions, the brake fluid contained in the wheel brake cylinders is kept at a minimum pressure between 5 and 10 bar even after completion of a braking operation, thereby increasing the boiling point of the brake fluid. The wheel brake cylinders are designed as stepped cylinders with a counterpressure space, into which a likewise co...

An at least uniaxially orientated film comprising a polyphenylene sulfide resin containing from 2 to 30% by mole of m-phenylene sulfide recurring units, the polyphenylene sulfide resin being composed of a blend of a polyphenylene sulfide (1) containing at least 15% by mole of m-phenylene sulfide recurring units and a polyphenylene sulfide (2) containing at least 95% by mole of p-phenylene sulfide ...

Conveyor belt (1), comprises projections (2) and (3) of triangular shape, inclined in opposite direction. In this manner the article being conveyed (4) cannot slide even under the action of thrusts F1 and F2 directed in opposite directions, which may be applied on the article (4) by different machines during operation on the article (4) being conveyed by the conveyor (1).

An optical scanning device is described which comprises a radiation source (6), an objective system (8) and a diffraction grating (9) which is arranged between the objective system and the radiation source to separate the radiation beam (b') reflected by the information surface (2) to be scanned from the beam (b) emitted by the radiation source and for introducing astigmatism in the reflected beam...

Reinforced gypsum boards are produced from gypsum (semi-hydrate), if appropriate reinforcing materials, preferably cellulose particles, polyisocyanates being admixed during the manufacture of gypsum boards and/or being applied to the surface of the gypsum boards. The invention also relates to polyurea-modified reinforced gypsum boards of gypsum (semi-hydrate), if appropriate reinforcing mater...

A process for improving the abrasion resistance of vapor deposited metal layers which comprises vapor depositing a metal layer on at least one surface of a substrate and, before subjecting the metal layer to physical treatment or contact which would abrade the metal layer, vapor depositing onto said metal layer 1) a 1 to 600 nm layer of organic material having a vapor pressure at 20 DEG C equal to...

By comparing the density values of the pixels of a specific color separation image of an original comprising an objective image stored as data in an image memory with a threshold, determining a border line between the area of which density value is higher than the threshold and the area of which density value is lower than the threshold as the conclusive outline of the objective image, and by appl...

A dental opaquing composition comprising (a) at least one polymerizable ester selected from esters of acrylic acid and methacrylic acid; (b) a photopolymerization catalyst; and (c) 30 to 90 percent by weight, based on the weight of said composition, of a pigment mixture consisting essentially of 50 to 66.6% by weight zirconium dioxide and 33.33 to 50% by weight of titanium dioxide. The present com...

A lid lock mechanism in an automobile switch panel device. The mechanism includes an open-top case, a switch panel accommodated in said case, a lid to cover the open-top case, pivotal shafts provided in the open-top case, and clutch members provided in a pair of holes in the lid. At a predetermined opening angle, the lid is maintained in a locked condition while the lid is easily closed manually w...

The patent claim relates to an invention which has the object of simplifying the exchange of the lamps and/or cleaning and/or repair and maintenance. Aluminium profiles and/or plastic profiles have preferably been used for this. They form two frames lying one above the other (supporting frame and holding frame), the supporting frame receiving the entire electrotechnics as well as reflectors and fa...

A resinous composition for denture base, having improved performance suitable for microwave curing comprises (i) a powdery component containing as the main constituents a methacrylate ester polymer having a mean particle size of 50 to 120 microns, a barbituric acid derivative and an organic peroxide, and (ii) a liquid component containing as the main constituents a monomethacrylate ester monomer, ...

PURPOSE:To enable to contract the diameter of a pulley while sufficient friction torque is being obtained, by filling a non-magnetic substance into a space to be formed by an inner wall surface of a pulley part, an end face of the inside of a friction surface part and an external circumferential surface of an outer race of a bearing. CONSTITUTION:A clutch rotor 11 is constituted with an external c...