Abstract: The present invention relates to new 6-substituted 6H-dibenzo [b,d]pyran derivatives, to a process for their preparation and pharmaceutical and veterinary compositions containing them.

Abstract: Combinations of 9-[[2-hydroxy-1-(hydroxymethyl)-ethoxy]methyl]guanine or a pharmaceutically acceptable salt thereof, and interferon show synergy in their activity against herpes virus infections.

Abstract: A method and apparatus for delivering metered quantities of liquid wherein the liquid is circulated through a chamber to fill the chamber with liquid and circulation is temporarily terminated with the chamber filled with liquid. While circulation is terminated gas under pressure is admitted to the chamber to displace liquid therefrom through a discharge port. The quantity of liquid displaced is controlled by regulating the volume of the chamber and/or by regulating the relative disposition in the chamber of the point of entry of the gas and point of discharge of the liquid.

Abstract: 2-(N,N-dialkylaminomethylene)-9-[[2-hydroxy-1-(hydroxymethyl)-ethoxy]methyl ]guanine either alone or in admixture with interferon is active in treatment of herpes simplex type 1 viral infections.

Abstract: There is provided a device for fastening a rod-like antenna element on an antenna supporting spar having a square or rectangular cross-section which device comprises a U-shaped clamp of spring elastic material having inclined portions at the free ends of the legs which portions extend in the direction of the base of the clamp. Adjacent to the base of the clamp, essentially aligning holes are provided in the legs for inserting an antenna element. In the non-deformed stage of the clamp a deformed portion of the base extends in the linear connection of the holes whereas the antenna element can be inserted into the holes when the legs of the clamp are pressed together.

Abstract: The novel nucleoside analogue 9-[1-(1,3-diacetoxy-2-propoxy)-2-acetoxy]ethylguanine has the effect of stimulating the rate of growth of certain viruses, particularly influenza viruses, so that culturing virally infected cells in the presence of this compound substantially decreases the time required for diagnosis and typing of the virus, ready for administration of appropriate anti viral measures.

Abstract: A sharpening device for a chain saw having an endless saw chain driven by a motor supported by a chain saw housing includes a housing adapted to be mounted to the chain saw housing spaced from the cutters. A grinding assembly having a grinding stone mounted thereon is movably mounted to the housing from a first position spaced from the cutters to a second position wherein the grinding stone is in contact with the cutters, and vice-versa. An actuator assembly is also movably mounted in the housing from a retracted position to an actuated position, and vice-versa. A coupling assembly is provided which moves the grinding assembly to the first position responsive to movement of the actuator assembly to the retracted position. A first spring is mounted between the actuator assembly and the grinding assembly and yieldably urges the actuator assembly toward the retracted position and the grinding assembly toward the second position.

Abstract: A method of alleviating the accumulation of waste nitrogen in human beings is disclosed, wherein phenylbutyrate, or even numbered conger thereof, is administered to a patient having such waste nitrogen accumulation. The phenylbutyrate or other compound is broken down by beta-oxidation to eventually yield phenylacetate, which is known to be useful for removing waste nitrogen from the blood stream.The present invention provides a solution to the offensive odor of phenylacetate, which is unpalatable to patients, and also can eliminate peaks and valleys of drug levels in the patient, due to the gradual formation of the desired compound phenylacetate in the patient's body.

Abstract: There is disclosed a method of forming a furnace cooling element involving casting a metal block or plate (10) around one or more elongated metal tubes (11) which have a protective coating applied thereto, and thereafter the, or each, metal tube (11) is explosively expanded by an explosive charge (12) closer to the surrounding material of the metal plate (10). Also disclosed is a method in which the protective coating on the metal tube is replaced by a full length external shroud tube (21) to increase the thermal efficiency of the cooling element, the inner metal cooling tube (20) is explosively expanded by an explosive charge (23) closer to the surrounding shroud tube (21) prior to casting a metal plate or block (28) around the tube combination (20, 21) to minimize the gap (22) between the outside wall of the metal cooling tube (20) and the inside wall of the metal protective shroud tube (21).

Abstract: Article produced in a mould for a plastics moulding tool having a mould surface defining the contours of the article, with the article comprising a body formed from a composition comprising a sinterable material having a sintering temperature which material, before sintering, is shapable into a desired shape and which during sintering forms a porous body having pores, the sinterable material being at least partially sintered in the mould, and also comprising a matrix having a lower melting point than the sintering temperature of the sinterable material, with the matrix comprising a matrix metal which is infiltrated in the porous body to substantially fill the pores.

Abstract: The invention provides an apparatus for removing an animal from a shell. The apparatus has a tubular helical main portion having an inlet, an outlet and an attachment portion for coupling the apparatus to a source of high pressure fluid. The apparatus may be inserted into the shell and coupled to high pressure fluid which urges the animal from the shell.

Abstract: The present invention relates to new polymer solutions which make it possible to obtain shaped articles such as yarns and fibres, films, sheets and the like.These solutions consist of cellulose having a degree of polymerization of at least 200, polyvinyl chloride, dimethyl sulphoxide and formaldehyde, the weight ratio cellulose/polyvinyl chloride being 0.05 to 0.5, preferably 0.1 to 0.5, the ratio formaldehyde/cellulose being 0.2 to 2 and the total polymer concentration being 6 to 20%, preferably 10 to 18%.Such solutions are particularly suitable for the manufacture of filaments consisting of fibrils substantially orientated along the axis of the fibre and closely interlaced, the cellulose macromolecules being partially involved in a crystal lattice characteristic of cellulose II. The filaments possess valuable properties for textile use.

Abstract: An artificial dental root comprised of a particulate or powdered form of synthetic hydroxyapatite or calcined or sintered synthetic hydroxyapatite or a mixture thereof and an organic matrix, the surface area of said artificial dental root to be brought into contact with a bone being composed of both a phase of said hydroxyapatite and a phase of said organic matrix. The artificial dental root is prepared by blending said hydroxyapatite with said organic matrix and molding the blend. The artificial dental root has moderate affinity for a bone and high mechanical strength.

Abstract: A display panel for displaying goods in a store is formed by elongate horizontal panel sections of sheet metal secured together in vertically superimposed positions. Each section has an intermediate portion extending from the top of a front wall to the bottom of a rear wall, a first channel formation at the top of the rear wall and a second channel formation at the bottom of the front wall. The first and second channel formations are interengaged to define recesses extending rearwardly from the front walls and upwardly behind the second channel formations, the recesses serving to engage conventional aperture board hooks or hooks and shelve units of novel design. The interengaged channel formations have surfaces connected in surface-to-surface contact with one another to reinforce the display panel.