A pneumatic vehicle tire which has fine slits in the tread. These slits are inclined relative to the circumferential direction of the tire. In order to increase the frictional connection to the roadway, to make the wear of the tread more uniform, and in addition to be able to use mechanically stiff plates for the associated vulcanization molds, the fine slits are twisted about an at least approxim...

1,264,338. Coated polyester film. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 June, 1970 [15 July, 1969], No. 35556/69. Heading B2E. [Also in Division G2] Coated biaxially oriented synthetic linear polyester films are produced by melt extruding a substantially amorphous polyester film, drawing the film in the longitudinal direction, thereafter applying a primer coating other than a heat sealable coating ...

A water heater including a water tight tank having a tank wall and top and bottom head members welded thereto. A combustion chamber and burner are mounted beneath the bottom head. A pair of concentrically arranged jacket members are mounted around the tank wall with the space between the jacket members serving as a flow passageway through which combustion air flows downwardly to the combustion cha...

PCT No. PCT/SE85/00132 Sec. 371 Date Nov. 14, 1985 Sec. 102(e) Date Nov. 14, 1985 PCT Filed Mar. 26, 1985 PCT Pub. No. WO85/04736 PCT Pub. Date Oct. 24, 1985.A data processing system which includes an address bus connected to k computer elements is supervised with the aid of an arrangement including a plurality of indication registers connected to the bus and to an error signal generator. The addr...

An interlayer for a laminated glass, said interlayer being composed of a film or sheet of a thermoplastic resin (1), at least one surface of the film or sheet of a thermoplastic resin having numerous coarse raised (4) and depressed (5) portions and numerous fine raised and depressed portions (3) existing on the surfaces of the coarse raised and depressed portions (2), the average distance between ...

1. Process for the production of foils (4) with low surface adhesivity from a plasticised melt (A) having a plasticiser-containing polyvinylbutyral basis or a basis or polymers with similar properties, by extrusion with a broad slit tool (1), wherein the plasticised melt (A) is shaped with the wide slit tool (1) with input channel (10), distribution channel (11) and outlet gap (13) to form a foil,...

Retroreflective sheeting has been improved by a coating comprising silica and a transparent polymer selected from aliphatic polyurethanes, polyvinyl chloride copolymers having a minor amount of a comonomer containing at least one carboxylic acid or hydroxyl moiety, and acrylic polymers. Silica comprises 10-80 weight percent (10-70% in the case of polyacrylates) of the transparent protective coatin...

PURPOSE:To obtain good critical current characteristics and mechanical characteristics in superconductive wire formed of Nb and Sn-based metal material and Cu-based metal material disposed around it by mixing a certain quantity of Cr in at least either the Cu- or Sn-based metal materials. CONSTITUTION:In superconductive wire obtained by applying a cross sectional contraction work and a heat proces...

The device for generating pressure pulses in a drilling fluid flowing down through a drill-pipe string (1) comprises a valve (V) arranged in the drill-pipe string (1) and having a tubular outer part (3) supported in a fixed position, a tubular main valve body (4) which can be displaced from a bottom initial position against the flow direction (2) of the drilling fluid into a top end operating posi...

The invention relates to a process for the production of solutions of polycarbonates in organic inert solvents which is characterized in that from 2.5 ppm to 100 ppm phosphorous acid, based on the weight of the diphenol used for polycarbonate production, are added to the emulsion of the two phases obtainable by the known two-phase interfacial process and the emulsion is worked up in known manner.

Nylon granules are based on (A) from 20 to 99.99% by weight of a nylon, (B) from 0 to 60% by weight of fibrous or particulate fillers or a mixture thereof and (C) from 0 to 40% by weight of an impact modifying rubber and contain (D) from 0.01 to 1% by weight of an outer shell consisting of a mixture of (d1) zinc stearate or aluminum stearate or a mixture thereof, (d2) calcium stearate and (d3) an ...

An electromagnetic device such as an electromagnetic brake or an electromagnetic coupling comprises an electromagnet, at least two parts arranged so that, when the electromagnet is switched on, a magnetic flux extends through the parts. Formations reducing residual magnetism in the parts, including a plurality of gaps formed as slots, are provided in at least one of the parts, such that this part ...

An apparatus for use particularly in department stores or supermarkets, which apparatus comprises a computer and a storage unit, and is designed as an information and display system. This apparatus allows a user to select desired information stored in the storage unit in a simple and reliable manner. Moreover, direct dialogue between the user and the apparatus is possible. To these ends, a large a...