The present invention provide a biaxially oriented polyester film for use in a floppy disc, which has a coefficient of thermal expansion ( alpha T) in film plane of (1.0 +/- 0.5)x10<-><5>mm/mm/ DEG C and a heat shrinkage of not higher than 0.09% alter treating the film for 72 hours under conditions of a temperature of 60 DEG C and a humidity of 80%RH in any directions in film plane, and simultaneo...

A process for preparing a polyurethane foamed article comprising a hard foam encapsulated by a soft foam is provided. The process provides improved encapsulation over that described in EP 68820 by frothing the hard foam formulation, with for example carbon dioxide, before it is introduced onto the rising soft foam formulation. The hard foam formulation is frothed so that is density is between 75% ...

Mouldable compositions comprising a metallic powder or a combination thereof with ceramic powder, mixed with an organic binder are disclosed, at least a part of which binder comprises a synthetic resin component (A) having a heat deformation temperature of 130 DEG C or higher. The component A may be used in combination with another component (B) having a melting point of 30 DEG C - 100 DEG C, with...

The convertible bed-settee has a support (4) for an upholstered seat which is pulled out of a frame (1) by a drive. The upholstered seat support is movably mounted in a base frame (2) or on an auxiliary carriage (2') with a control (50). A guide, for guide-carriage, (13) slides in a slide guide (14,17) with rollers (19). ADVANTAGE - The height of the seat and recliner is the same, and they are p...

Automatic investigation of a measurement object whose image is a camera has at least two longitudinal edges bounding a reference surface involves illuminating it from different directions. Its image is acquired by a camera unit whose output signal is fed to an electronic evaluation unit. The object is either illuminated with undifferentiated light, and images taken for different zones, or illumina...

For cab signalling and also for automatic vehicle control, signal positions and temporary travel restrictions must be transmitted to the vehicles reliably in terms of signalling technology. For this purpose, a device is disclosed which has a line conductor loop (LL) which is laid on the track section, for example in the track at the signalling location, and a track section device (SG) which feeds ...

The foam (I), contg. catalysts, cell stabilisers, and/or flame retardants, has pores free from halogenated hydrocarbons but contg. minor amts. of blowing agent (II) consisting of at least 3-6C alkane with b.pt. at normal pressure (-)10 (+)70 deg. C. Pref. prepn. of (I) using (II), wherein (1) (II), in conventional amt., is finely distributed either (i) in mixt. of alcohol and isocyanate starting...

The method relates to an alarm system, in particular for a motor vehicle, for protecting the latter against break-ins and thefts. According to this method, for each part or accessory of the vehicle to be protected, a device for the electrical detection of an alarm condition (BE2, BE3, BE4) is provided, these detection devices are connected to an alarm device (AL), and the electrical arrangement is...

For cab signalling and also for automatic vehicle control, signal positions and temporary travel restrictions must be transmitted to the vehicles reliably in terms of signalling technology. For this purpose, a device is disclosed which has a line conductor loop (LL) which is laid on the track section, for example in the track at the signalling location, and a track section device (SG) which feeds ...

The invention relates to a process for the production of substantially non-alcoholic beer by a continuous yeast treatment at a low temperature. In the process, wort which has been clarified and possibly treated by evaporating and/or with an absorbing agent is passed through a packed column reactor containing immobilized yeast at a temperature ranging between the freezing point of wort and +10 DEG ...

A procedure and facility for the detection and evaluation of surface cracks in workpieces (1) in which use is made of an image pick-up camera (3) to take a picture of the workpiece surface pretreated with the aid of the magnetic powder or dye penetration method and/or contrast intensification means, digitise it and process it with a computer (8) in such a way that a binary image is produced of any...

An oriented heat sealable multilayer structure. The structure comprises a substrate having a first surface and a second surface, the substrate comprising a polyolefin film; a polymeric heat sealable layer on the first surface of the substrate, the layer comprising a polymeric material selected from the group consisting of a terpolymer of ethylene, propylene and butene-1, a random copolymer of ethy...

PURPOSE:To obtain a high critical current density by sintering again after loading a compressive stress repeatedly in plural times on a sintered wire material. CONSTITUTION:After plastic-processing a silver pipe filled with a superconductive material powder into a linear form, a sintering process is applied. And by a press process after the sintering, a compressive stress of the pressure 50kgf/mm<...

PURPOSE:To improve the critical current density and to make the thickness constant by connecting and baking a pipe-form formation formed by using a rolled sheet of a superconductor material powder and a punched disk of a sheet to form a unitary body. CONSTITUTION:After a material powder for a superconductor material is baked and powdered, it is dispersed in a solution to make into a slurry, a tape...

PURPOSE:To prevent an oxide superconductor from deteriorating in characteristics by a method wherein the whole surface of the oxide superconductor layer is covered with a double layer composed of an Ag layer and an Au layer, and the Ag/Au layer is processed into an electrode. CONSTITUTION:An Ag layer 5 is formed on the surface of a thin film oxide superconductor 1 through a vacuum evaporation meth...

It has been proposed to sense the roll rate or roll position of a spin projectile using a pendulum or accelerometer to sense the direction of the Earth's gravity. Gyroscopes may also be used. The prior proposals are sometimes expensive and/or not useful in every situation. Herein there is proposed a roll rate sensor which may form part of a roll position sensor (an "up-sensor") and which comprises...

Composite material of low permittivity consisting of a base material comprising polymer material and particles of thermofusing fluororesin dispersed therein.

PCT No. PCT/GB89/00799 Sec. 371 Date Jan. 9, 1991 Sec. 102(e) Date Jan. 9, 1991 PCT Filed Jul. 13, 1989 PCT Pub. No. WO90/00667 PCT Pub. Date Jan. 25, 1990.A logging plug for suspension on a wireline comprises a hollow body provided with packers for sealing it to a nipple included in a tubing string, and a flow tube through which the line may slide with minimal leakage. A sliding equalizing tube i...