In the automatic control of a motor vehicle friction clutch (1), the clutch is disengaged when the vehicle is stationary and thus, despite the fact that the engine (3) is running and the gear is engaged, the driver can leave the vehicle. In the case of a fault of the clutch system causing engagement of the clutch, the vehicle may set itself in motion. This is prevented by an arrangement in which, ...

A method of optimising a system such as a fighting vehicle system with regard to a predetermined environment, in which the system is represented as a set of elements having values ascribed which are incrementally variable in turn, an aggregate of said element values being maximised to optimise the system.

A data processing apparatus comprises input, file update, display and print processing units which are independently operated and linked to each other. Arbitrary word labels can independently be set in each processing unit. Each processing unit performs only an operation defined by the word labels. The data processed by one processing unit can be used as a source data based on which the succeeding...

Particulate expandable styrene polymers are coated with a distilled acetylated monoglyceride product to reduce the cooling time of articles molded from such expandable styrene polymers. Coating of the expandable particulate styrene polymer is obtained by contacting the polymer with an emulsion of a distilled acetylated monoglyceride and water with a suitable surfactant. The distilled acetylated mo...

Aesthetically attractive, free standing dispensers for the controlled release of volatile liquid materials such as perfumes and fragrances into the atmosphere consist essentially of composite hydrogels comprising a continuous phase of a solubilized polyvinyl alcohol, a dispersed phase comprising a polyelectrolyte and an aqueous solution of the volatile liquid that is distributed between said conti...

PCT No. PCT/EP89/00005 Sec. 371 Date Aug. 2, 1990 Sec. 102(e) Date Aug. 2, 1990 PCT Filed Jan. 5, 1989 PCT Pub. No. WO89/06935 PCT Pub. Date Aug. 10, 1989.A catheter for percutaneous surgery of blood vessels and organs using radiant energy, such as laser or radiofrequency radiation is provided, preferably for percutaneous valvotomy and for incision of membranous obstructions in vessels and hollow ...

A remote data base (13) containing flight schedule and fare information is accessed from a local computer terminal (12). Limitations on the applicability of the fare information are inferred from a locally stored expert rule base. A locally stored travel policy can be applied to the retrieved information to select a plurality of potentially preferred flight/fare alternatives. The flight/fare alter...

Bulky processed sheets which are obtained from mixtures of crosslinked pulp and hot water-soluble fibers, or crosslinked pulp, thermally fusible fibers and binders are described. The sheets may be embossed by hot pressing them in wet state and may be treated with flame retardants. The bulky sheets which may be embossed or treated with retardants have wide utility in various fields and especially a...

A blend, a batt, and a process for making the batt from the blend is disclosed. The blend and batt are made from a uniform combination of cotton and copolyester binder fibers wherein the binder fibers have a melting temperature of 230 to 340 DEG F.

A photomask for a negative resist used for forming a resist image in the form of an isolated pattern. The photomask (40; 60; 70; 80; 90; 100; 120; 140) comprises a substrate (42; 82; 92; 102; 122; 142) transparent to an exposure light and a mask pattern (44; 62; 84 and 86; 94 and 96; 110; 132; 154) on the substrate. The mask pattern is formed of a phase-shifting layer (44; 62) alone or of a phase-...

A non-formaldehyde binder for non-woven fibre or fabrics is prepared which comprises an emulsion polymer containing a crosslinking agent, a glyoxal resin and catalyst.

In an optical data recording and reproducing apparatus comprising an information signal generator (12; 34), a sample/hold switching signal generator (23; 35), a write/read switching signal generator (11; 36), a laser beam source (33), a reference voltage generator (22), a comparator (15) and a photo detector (24), a dummy signal is added to the information signal modulating the laser beam or gener...

The invention discloses an optical head device (10) having:- a diffraction grating element (3) divided into a first diffraction grating (3a) and a second diffraction grating (3b) by a plane including an optical axis that connects a light emitting point on a semiconductor laser (1) to a focal point on a recording medium (6) such as an optical disk, so that the first and second diffraction gratings ...

Device for extracting a liquid out of a tube of great length closed at one of its ends in case a communication between the closed end and a source of a substitution fluid should be difficult to establish, the device includes a mobile member provided with a body connected to a supporting surface apparatus, a piston whose cross-section is adapted to the inner cross-section of the tube controlled val...

A microtome blade made of, for example, sapphire is imparted with greatly improved cutting power as well as durability and anti-corrosion resistance by providing a coating layer of diamond thereon. Such a coating layer can be formed by subjecting a base blade to a treatment of plasma-induced chemical vapor deposition of diamond in an atmosphere of a gaseous mixture of a hydrocarbon compound and hy...

Process in which the fibres are impregnated with a polyamide before a pultrusion, characterised in that the fibres impregnated with a polyamide oligomer or prepolymer are treated while heated to cause the elongation of the polymer chain before the calibration by pultrusion.

A monoaxially or biaxially stretched film is described which comprises principally a linear polyethylene and is capable of reduction of thickness to a greater extent than possible with conventional films of this type. The film according to the present invention, though incomparably thin, has excellent impact strength, stiffness, tensile strength and tear strength and can be favorably utilized as a...

A urea-formaldehyde resin which cures highly exothermally is obtained by condensation of urea with formaldehyde in an alkaline medium and is characterised in that it is obtained by a) condensation in a first condensation step I of from 0.2 to 0.7 mol, preferably 0.5 mol, of urea with from 1.2 to 3 mol, preferably from 1.7 to 2.2 mol, of formaldehyde in the form of solid paraformaldehyde, in an ex...

The slagging efficiency of a coal gasification process is increased to 90% by tangential firing at small angles and the installation of a stack of specific length over diameter ratio between the reactor outlet and the quench inlet. In this manner slag lifting and slag entrainment at the quench inlet - stack outlet are prevented.

AE 6367 AE 6367 TERPOLYMER, BASED ON ACRYLONITRILE AND BUTADIENE The invention relates to a new terpolymer based on acrylonitril, butadiene and vinylpyridine, a process for preparing said terpolymer and an adhesive comprising said terpolymer. The new terpolymer of the present invention has been found to be particularly useful in establishing a secure bonding relationship between fiber cords and ac...