Method for purifying a liquid from solid and liquid impurities by flotation-filtration in which the dirt flocks in the liquid to be purified are separated from the liquid to be purified after which they are led to the top of the liquid to form a sludge bed 16 from there to continue out to a sludge canal 17 and to a drain. The purified liquid flows further through a sand filter 18 to an isolated sp...

A system for storing electrical energy in the form of triple-point CO2 and then using such stored energy plus heat to generate electrical power. A reservoir (11) of carbon dioxide liquid at about the triple point is created in an insulated vessel. Liquid carbon dioxide is withdrawn and pumped to a high pressure (47,15), which high pressure carbon dioxide is heated (19,21) and expanded (23) to crea...

A method and apparatus for centering an annular tread on a pneumatic tire-casing is described. The method, preferably put into use with the apparatus, comprises mounting a casing on a wheel, locating the equatorial plane of the casing or wheel, mounting the annular tread on an axially-moveable tread expander assembly, and positioning the tread on the tread expander assembly such that its circumfer...

The invention relates to a servo-controlled basic appliance for plant cultivation, which can, as desired, be mounted on the tractor or be integrated into working appliances. It senses the plant row by means of a number of capacitive sensors and electronically controls the hydraulic cylinder which moves the movable mounting beam. This basic working appliance can be combined with many sowing, workin...

In a pneumatic vehicle tyre, the rubber inner layer is formed from an adhesive rubber and styrene-butadiene copolymers, wherein the content of styrene, which is bound in the molecule, in the blended mixture is at least 15 parts by weight per hundred parts of rubber. A low gas-permeability and sufficient mechanical strength are hereby attainable for the rubber inner layer. The production of the pne...

In order to bond workpieces made from high-quality elastomeric plastics of ethylene glycol- or 1,2-propylene glycol-adipic acid-polyester in combination with naphthalene 1,5-diisocyanate (VULKOLLAN TM ) to one another or to workpieces made from other materials, trichloromethane is used both to partially dissolve the workpiece surfaces to be bonded and as a solvent for the preparation of a rubber s...

The sunshade has a shaft (10) which can be inserted into the ground or a stand. In order to accommodate a shelf for articles, the shaft (10) has, below the region occupied by the folded-in stretcher frame for the covering (14), a second stretcher frame having a number of supporting levers distributed around the shaft and mounted in an articulated manner which can be stretched into a radial positio...

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...

A soft intraocular lens suitable for placement in the anterior or posterior chamber and either in or out of the capsular bag. The lens has a fenestrated haptic defined by an arcuate member including a tissue contact portion, beam portions and support portions which acting together keep the lens in contact with the eye during distortion and tend to cause the lens to vault posteriorly when compresse...

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% ...

This invention relates to a foldable armchair incorporating adjustable backrest and footrest, in which the connecting elements which control orientation of the footrest are connected to the backrest by pivoting crank pins provided with bearing faces cooperating with stops on said backrest, so as to make a unidirectional angular connection which ensures modification of the orientation of the footre...

A medical device (10) for applying localized heat to a site in a patient's body is described. The device includes a radiant energy transmitting conduit (12), e.g., a fiber optic, and a heat generating element (18) which converts the transmitted radiant energy into heat. A suitable exterior guide member can also be provided for positioning the heat generating element. An opening can be provided in ...

PURPOSE: To couple end parts of tubular metallic members with each other by providing coupling surfaces opposite to each other of two tubular members of a truncated conical shape with slight gradient. CONSTITUTION: In a constitution to couple two tubular members with each other, a pair of truncated coupling surface are used, a series of axially separated cylindrical parts or cylindrical shoulder p...

PURPOSE:To obtain a micro-superconducting wire of less than 1mum by covering a core containing at least one of superconducting intermetallic compound constituent elements with a Cu layer and controlling diffusion of Sn to the core side at the time of an intermediate heat treatment when the diameter of wire is reduced. CONSTITUTION:An Nb core 10 is covered with Cu tube 11 and Cu-Sn tube 12, and the...

The invention relates to a method of analyzing a multi-phase fluid flowing along a hydrocarbon well in order to determine, at each depth, the average static proportion of one of the phases by means of a local measurement. At each depth the local static proportion of the phase under investigation is determined at a point in the flow, which point is situated on a circle having a radius r in the tran...

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 process for the preparation of photosensitive, electroconductive, film-forming polyacetylene by doping film-forming polyacetylene which portion of sp<3>-hybridised carbon atoms in the polyacetylene is less than 0.5 mol %, where the film-forming polyacetylene is coated with a photosensitive dope (dopant) in the absence of light, and this coating is then exposed through a ...