PURPOSE:To disuse heat treatment in a high temperature in manufacturing by composing a bismuth series compound conductive material of a composition shown by a formula=BaalphaSrbetaCagammaBadeltaOx (in the formula, alpha, beta, gamma, delta and x are respectively molar numbers of elements). CONSTITUTION:A bismuth series compound conductive material is a composition shown by a formula=BialphaSrbetaC...

PURPOSE:To prepare a superconducting wire in which a stabilized metal and a highly functional compound superconductor are finely distributed by supplying a powder consisting of at least two kinds of metals to plasma jet to fuse and strike the powder on a metal base plate, quenching the base plate to form a supersaturated solid-solution membrane on the surface of the base plate, and then heating th...

PURPOSE:To reduce the diameter of a superconducting fiber and heighten the electromagnetic stability by compounding a secondary wire containing Nb fibers in the outside of a central stabilizing material, diffusing Sn from a coating layer formed in the outside of the Nb fibers, further gathering a plurality of in-situ rods containing Nb fibers, and processing after drawing. CONSTITUTION:A stabilizi...

PURPOSE:To produce a sufficient amount of Nb3Sn superconductor fibers within a short time heat treatment by gathering a plurality of coated composite wires having an Sn coating layer formed on the outer circumferences of in-situ rods and carrying out heat treatment for diffusion after drawing. CONSTITUTION:A plurality of coated composite wires 14 prepared by putting in-situ rods 10 in the inside a...

A hydrodynamic brake has a rotor blade wheel and a stator blade wheel with oblique blades and which together form a toroidal work chamber. A series of quick blades are mounted on the stator blade wheel for controlling the flow of braking fluid between the blade wheels and thereby the degree of braking action. Each of said blades is mounted for rotation around a radial axis and can be swung uniform...

The invention relates to a drum brake with two shoes, each having a web (16) and a rim (18), of which the face confronting the drum receives a friction lining (20). The drum brake is arranged on a supporting plate (10) and also includes a mechanical control lever (34) comprising a body of considerable length and of small thickness in relation to its width, the body having, at a first end (36), an ...

The invention relates to a device for putting a radioactive source into a formation through which a borehole passes, the device comprises a gun barrel (20), a bullet (25) containing a radioactive source (26) and engaged in the barrel, and explosive means (22, 24) for propelling the bullet towards the formation. The device in accordance with the invention is characterized by the fact that it furthe...

The vehicle differential (1) has a coupling (15) limiting the relative rotation of the differential output shafts (12a,13a). The coupling torque transmission is controlled dependent on the vehicle operating conditions. The coupling is formed as a circulation displacement machine, hydraulically connected to a pump (8). The pump is driven at a constant speed ratio (via 3) from the differential inp...

Prodn. of fibre-reinforced bitumen (I) involves coating organic (IIA) and/or inorganic reinforcing fibres (IIB) with a layer of vulcanised rubber (III) and incorporating the coated fibres in the bitumen. Specifically, (IIA) consist of natural fibre, esp. based on cotton (pref. rayon), and/or synthetic fibre, esp. polycondensates (pref. polyester and/or polyamide) and/or carbon fibre, in which case...

The invention consists in that, in a process and an apparatus for preparing powders from molten substances by atomising the melt to give particles by means of flowing media and simultaneous cooling of the particles or cooling during their fall, with a melting apparatus (10), with an atomising apparatus (11) and with an atomising tower (12) assigned to the atomising apparatus and attached to the me...

A hydraulic frictional device disclosed herein is a multiple plate clutch or brake. The device includes a set of interleaved friction plates including a plurality of driving plates and a plurality of driven plates. In order for increased dissipation of heat from the friction plates, some of the interleaved friction plates has radially extending through passages for a hydraulic fluid to pass theret...

An axially symmetric air-core choke coil for high voltage applications. The coil includes a plurality of radially concentric, helically wound layers of windings. Non-insulated wire cable is used to produce each winding. Therefore, adjacent turns of each winding, as well as adjacent layers are spaced from one another. Separation between adjacent turns of each layer is provided through longitudinall...

A twin-disc brake comprises a fixed support, extending over an angular sector of about 180 DEG , and common to two calipers associated each with a respective disc. The calipers are mounted so as to slide axially along guides in the support and have hydraulic cylinders arranged on only one side of the associated disc, each caliper presents a reaction face for the pads on the other side of the assoc...

A novel class of resinous organosiloxane polymers includes triorganosiloxy, fluorinated organosiloxy, SiO4/2 and silicon-bonded hydroxyl groups. The fluorine-containing hydrocarbon radicals are bonded to silicon by means of a sequence of at least two methylene group. Preferred organosiloxane polymers stabilize the cellular structure of polydimethylsiloxane foams during curing.

The invention relates to a belt-grinding device for cleaning welding beads on sheet-metal components, in particular on vehicle bodies. The grinding belt, which is guided over guiding and tension rollers in an endless loop, has in its working strand, a cardanically suspended pressure roller or a pressure piece. Attached on both sides of the pressure roller or pressure piece are adjustable spacer el...

Natural rubber latex compounds are modified by the addition of a high styrene content styrene-butadiene copolymer. The films prepared from these modified NR latex compositions exhibit improved tear strength and a good balance of other properties.

To produce molten pig iron by melt-reduction of iron ores of various grain sizes containing a fraction A including grain sizes to which diameters of less than 0.2 mm correspond, by pre-reducing the ore by reducing gas, completely reducing the pre-reduced material and smelting it to molten pig iron in a melter gasifier, the pre-reduced ore fraction A is separated from a fraction B including larger ...

PCT No. PCT/EP90/01981 Sec. 371 Date Dec. 29, 1992 Sec. 102(e) Date Dec. 29, 1992 PCT Filed Nov. 20, 1990 PCT Pub. No. WO92/00108 PCT Pub. Date Jan. 9, 1992.The present invention relates to a powdery, water-insoluble, cross-linked resin which absorbs aqueous or serous liquids as well as blood and is composed of a) 55 to 99.9%-wt. polymerized, unsaturated, polymerizable, acid-groups-containing mono...

Cement blends incorporating at least 5 and up to 40 % siliceous crop residue ash and cement compositions and products containing said blends are provided. At least about 50 % of the ash particles are in the 10-75 micrometer size distribution range and the mean diameter is greater than 6 micrometers. Methods for decreasing the permeability of hardened cement products and a method for accelerating t...

A process for wrapping articles, particularly large or heavy articles, with a stretch wrap film is disclosed. The film is at least 45 mu m thick and is made from a polymer blend, such blend comprising (i) from 1 to 20 wt.-% of at least one polybutene having a number average molecular weight of from 500 to 10,000 and (ii) a polyethylene selected from the group consisting of at least one linear eth...