A split tire mold having a tread ring in which provision is made for venting air circumferentially across the inner surface of the tread ring so that the air escapes from the parting line of the mold halves, dispenses with widely used, conventional, radially protruding vent stubs. The air is vented through "butterfly-shaped" or "double-wedge-shaped" arch-vents which provide passage for trapped air...

The invention relates to a blend of divinyl ethers and their use as diluents for irradiation curable resins, which blend comprises between about 65 wt. % and about 35 wt. % of a hydrophobic divinyl ether containing from 6 to 30 carbon atoms and having a Tg of from about 20 DEG C. to about 150 DEG C. and between about 35 wt. % and about 65 wt. % of a hydrophilic polyethylene glycol divinyl ether.

This invention relates to a composition of matter having a fibre structure incorporating a major proportion of heat shrinkable fibres, the structure includes within it discreet fibre groupings which serve to provide structural elements within the composition. The composition of the invention is capable of being formed to provide shaped products. A particular aspect of the invention relates to comp...

A read/write storage system for reading/writing data to and from a flexible optical or magneto-optical media (disc or tape eg helically scanned by rotating drum) includes an optical read/write head and a fine movement stabilizer 64 positioned proximate the flexible media for stabilizing the flexible media in a desired position so that the optical head providing focussed light need not be moved sub...

An apparatus for slit radiography comprising an X-ray source (1), an X-ray detector (6) positioned behind a body (L) being irradiated, said detector collecting the radiation passed through the body, and a slit diaphragm (2) placed between the X-ray source and the body being irradiated, through which diaphragm there is formed a planar X-ray fan beam (4), while for obtaining a complete X-ray shadow ...

Aqueous silicoaluminate suspensions stabilised with a biogum, capable of being employed in the papermaking industry.

The invention relates to opening aids for an ampul which is closed by upper and lower plastic membranes. The opening aids are funnel-shaped sleeves, one of which contains a membrane welded to one of the plastic membranes closing the ampul, and the other of which includes a plastic punch for rupturing the upper membrane.

An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae or fungi. The composition comprises a vinyl polymer or copolymer emulsion containing a dialkyldimethyl ammonium compound with or without an alkylbenzyldimethyl ammonium compound. The preparation of the composition must be done with care in order to preve...

Improved durability and water repellency are provided to porous substrates by the use of a novel penetrating treatment composition comprising (A) C10 to C22 alkyl acrylate(s) or methacrylate(s) which are non-oxidizing and polymerizable to form homopolymers having a glass transition temperature of about 0 DEG C or less and (B) autoxidative compound(s) which function as polymerization initiator-oxyg...

A dosage unit for dosing a number of measured quantities of a liquid, such as an insulin preparation, from a separate cartridge (2), where the dosage unit comprises a cylindrical casing for the cartridge (2). At the distal end the casing (1) is provided with means for fastening a liquid outlet needle (5). The dosage unit comprises furthermore a piston rod (8) activating a piston (4) in the cartrid...

In data processing systems operable to perform floating point computations there is provided a method, and apparatus implementing that method, for predicting, in advance of the floating point computation, whether or not the computation will produce a floating point exception (e.g., overflow, underflow, etc.). The prediction method includes the steps of combining the exponent fields of the operands...

The invention involves the use of at least two different absorbable and at least two different nonabsorbable components to fabricate tubular articles of all sizes and specifically for repair of the peripheral vascular system and for coronary bypass use.

Nitrosourea derivatives, process for their preparation and pharmaceutical compositions containing them. The nitrosourea derivatives of the invention correspond to the formula (I), in which: R can represent a hydrogen atom or an alkyl group from 1 to 30 carbon atoms, X represents a hydroxy group or an -NR1R2 group, Y represents a hydrogen atom, a hydroxy group or an -NR'1R'2 group, where R1 and/or ...

Apparatus is disclosed for the strain-free mounting of a component, such as a mirror 11, to a base in a manner that allows for differential thermal expansion or contraction to take place between the component and the base without distortion of the component. The mounting apparatus of the invention makes use of a linear bearing 10 that is rigid in all directions except one. Such a linear bearing is...

The present invention relates to novel derivatives of formula I that can be derived from milbemycins, to their preparation and their use for controlling pests, and also to pesticides that contain at least one of these compounds as active ingredient. The novel compounds have the general formula I (I) in which X is one of the groups -CH(OR1)-, -C(O)- or -C(=N-OR)-; R1 is hydrogen or an OH...

Method for producing a protective layer by subjecting a ceramic or a ceramic composite body being interconnected residual metal therein to a particular atmosphere, a protective layer can be formed from the interconnected metal. Such a layer can be protective, especially in corrosion environments which include various gaseous or solid species containing sodium and silicon, such as those found in gl...

Sound-insulating and/or vibration-damping cover, comprising a layer of a relatively hard substance (2) which has pores, interstices, cavities (3) and/or hollows (12) containing a material (4) which has a greater plasticity or elasticity than said substance (2). This cover can be applied to an element by subjecting the surface of the latter to be covered to a surface treatment in order to ensure ad...

Sound-insulating and/or vibration-damping cover, comprising a layer of a relatively hard substance (2) which has pores, interstices, cavities (3) and/or hollows (12) containing a material (4) which has a greater plasticity or elasticity than said substance (2). This cover can be applied to an element by subjecting the surface of the latter to be covered to a surface treatment in order to ensure ad...

The invention provides a hydrofoil ship or watercraft arrangement which comprises a body of a ship or watercraft as well as a pair of hydrofoils, of which each has a first and a second planar surface part, and has a rotary or pivoting fastening device for fastening the pair of hydrofoils to the body of the ship or watercraft, and furthermore the hydrofoil ship or boat arrangement comprises a devic...

Blank (1) in one part and made from sheet material for the production of a partition intended to subdivide a container into a plurality of compartments. The invention also concerns a method and a machine for producing such a partition. According to the invention, the blank (1) comprises - two sets (2 and 3) of articulated flaps, which by folding are each capable of forming a part of the...