Two bone fragments may be connected by means of an osteosynthetic implant including connecting device and connecting bands comprising reabsorbable, biocompatible material, such as, for example, polygluconate or polylactate, the bands preferably in woven or knit form, and connected to the bone fragments by means of connecting elements. Different types of connecting elements are suitable for use wit...

Arrangement for the biological cleaning of water, said arrangement being suitable for large urban stations for cleaning sewage or for the cleaning of waste waters of industrial plants. The arrangement comprises an activating system with pneumatic aeration and a separating system communicating therewith, the arrangement operates on the basis of fluid filtration and automatic return of activated slu...

A device for biological activated purification of effluent, in which an activation chamber with aeration and a separation chamber for fluid filtration of the activated sludge are provided in a common container. In order to decrease energy consumption and to simplify the design, the activation chamber has an annular cross section and completely encloses the separation chamber.

The injector apparatus is of the kind having a constriction which lies, in the flow direction, immediately before a following adjoining mixing section, in which fibrous stock suspension is mixed with air for the purpose of subjecting the suspension to flotation in a flotation tank. The mixing pipe in which the mixing section is disposed has a radial diffusor at its outlet end, and, for a greater f...

Polymer concretes having little or no shrinkage and high compressive strength and improved bond are prepared by; A) mixing a current catalyst with an unsaturated resin selected from the group consisting of unsaturated polyesteramide resins, unsaturated polyester resins and unsaturated vinylester resins dissolved in one or more ethylenically unsaturated monomers to provide a catalyzed resin, B) mix...

The process entails the sludge, where appropriate after previous biological treatment, being mixed with complexing agents and enzymes, being dewatered and being mixed with solidifying aids, and is characterised in that the complexing agent is added in excess over the amount of metals contained in the raw sludge, in that a slow-acting hydraulic binder is added to the sludge before the dewatering, a...

A fibrous bone filler having an excellent biocompatibility is described. The bone filler comprises fibers containing hydroxyl apatite. The hydroxyl apatite is "intact", that is, the hydroxyl apatite substantially retains its hydroxyl groups.

A corrugated mould block for a vacuum moulding machine is provided with a face (20) arcuate about a longitudinal axis and corrugated in the longitudinal direction with alternating grooves (22) and lands (24), said face being formed of sheet metal. A housing (50) is provided about the back of the face and adapted for carriage about an endless path, and reinforcing members (54) are provided which ar...

PURPOSE:To contrive highly efficient mass production and cost-down, by a method wherein the receiving tube and the guide tube of a punch are embeded respectively into left and right molds, the punch, fitted into the guide tube, is operated by a cylinder or the like to effect automatic boring of attaching- holes on the attaching pieces to be formed on a blow molded form before the left and right mo...

Compositions for flame proofing wood e.g. in the form of aqueous solutions containing tetrakis (hydroxymethyl) phosphonium salt, methylolmelamine with at least 3.5 optionally alkylated hydroxymethyl groups per melamine nucleus, a polyfunctional nitrogen compound with at least 2 N-H groups e.g. urea and a base e.g. triethanolamine.

A heat insulating structure of ceramic material for high temperatures is made up of a plurality of reflective layers in order to provide protection against the action of heat for short periods of time. The reflective layers are made up of a substrate of impregnated, fired ceramic fiber and a noble metal layer. The heat insulating structure is made up of a plurality of such parallel spaced reflecti...

A fuel injection pump of the distributor pump type having a pump piston driven for simultaneous reciprocation and rotation, the supply quantity of which that is effective for injection is controlled by the opening of a relief conduit of the pump work chamber in that with the aid of a mechanical regulator an annular slide is moved into variable stroke positions on the pump piston. Additionally, for...

A blood pressure measuring device has a probe (1) having at the bottom thereof a blood flow sound detector (3) to be pushed to the skin over an artery to be examined. The probe (1) which comprises a hollow elastic body of a size to cover the width of the arter is airtightly and removably connected by a connecting member (5) to a pressure gauge (2). The connecting member (5) has enough elasticity t...

Electronic locking system including keys (30) and self-sufficient door locking units (50) both of which carry multiple "zone" codes (F1,F2...). Upon recognition of a key (30) by a door unit (50), the zone codes within the key and door unit are matched against each other so that a match between any one of the key zone codes (FI) and any one of the door unit zone codes (FJ) will result in an "allow ...

A direct relay equipment includes a first antenna (11), a second antenna (12), an up direction circuit (15-23) connected from the first antenna via a first circulator (13) to the second antenna via a second circulator (14), and a down direction circuit (25-33) connected from the second antenna via the second circulator to the first antenna via the first circulator. In the up direction circuit and ...

A Substance P antagonist for use in drugs for the prophylactic or therapeutic treatment of diseases released by Substance P. The antagonist consists of (D-Pro<2>, D-Trp<7,9>) Substance P having the formula A drug for the prophylactic or therapeutic treatment of inflammations, especially in the eye, is also described, said drug containing as the active substance the above-mentioned Substanc...

The present invention relates to a process for inhibiting corrosion of an existing steel material built in an inorganic material by applying an aqueous solution of an inorganic salt, an aqueous solution of a water-soluble silicate compound and a cement composition having corrosion-inhibiting effects on the surface of the inorganic material.

A vinyl or acrylic polymer-modified epoxy resin comprising a reaction product of (A) an epoxy group-containing vinyl or acrylic polymer, (B) a bisphenol compound, and (C) a diglycidyl ether of a bisphenol compound.

A cache memory has a data buffer for storing blocks of data from a main memory and an index for storing main memory addresses associated with the data blocks in the data buffer. The size of the blocks of data stored in the data buffer can be varied in order to increase the "hit ratio" of the cache memory. The index is a set associative memory and bits provided to an address input of the index are ...