Abstract: The invention relates to a container for bulk goods in substantially solid form, having a central conduit arranged in the center of the container and between the inlet opening and the outlet opening, the conduit having openings in its wall for connection with the body of the container.The invention further relates to a method of evacuation of a container containing bulk goods in substantially solid form, the container having a central conduit extending between the inlet opening and the outlet opening and openings in the conduit for connection with the body of the container, which method comprises maintaining a lower material pressure of the bulk goods in the conduit in the area above the outlet point than in other areas in the conduit and in the body of the container. The invention further relates to a method for emptying the container by maintaining the material pressure of the bulk goods in the conduit in the area above the outlet point at below a specified value.

Abstract: A container defined by a cylindrical metallic vessel extending between and supported by two spaced apart metallic frames with adjoining ribs secured to adjacent sides of each frame, characterized in that the edge of the side wall of the vessel is in direct longitudinal abutment against the frames and ribs.

Abstract: A method of producing plastic-based casings including preformed metal fragments for ordnance articles, such as hand grenades, weapon-launched grenades or the like, by rotational molding in a shell-mold; a pulverulent thermoplastic polymer material, such as polyethylene, and steel fragments or particles are introduced into the cold shell mold, optionally in the form of a pre-compact; the closed mold is rotated slowly, i.e. at a speed where the polymer and metal constituents tend to tumble about the inner mold surface and are not held substantially thereon by centrifugal effects; while continuously rotating the shell mold about two or more axes of rotation, the mold is heated by an externally applied hot fluid such as hot gas.

Abstract: The invention relates to the preparation of novel N-substituted alkyl-N-nitrosocarbamoyl azides and to the compounds obtained thereby. The novel N-substituted alkyl-N-nitrosocarbamoyl azides can be reacted with amines, diamines, aminoalcohols, aminoacids or aminoacid derivatives to prepare unsymmetrically 1,3-disubstituted nitrosoureas which show therapeutical activity.

Abstract: The invention relates to a process for the preparation of fiber-reinforced cement-based hydraulically hardenable shaped objects, which comprises spraying matrix and fibers with a spraying apparatus onto a deflecting surface to produce a mixture of matrix and fibers, removing the mixture in the unhardened state from the deflecting surface into a mould, and preparing from the mixture fiber-reinforced cement-based hydraulically hardenable shaped objects.The invention further relates to an apparatus for the preparation of the above described shaped objects.

Abstract: The invention relates to the preparation of unsymmetrically 1,3-disubstituted nitroso ureas from the corresponding N-substituted alkyl-N-nitrosocarbamoyl azide which is reacted with an amine, a diamine, an aminoalcohol, an aminoacid or an aminoacid derivative. The N-nitrosocarbamoyl azide is obtained by reacting the corresponding alkylcarbamoyl azide with nitrogen tetroxide in the cold. The alkylcarbamoyl azide is obtained by reacting the corresponding isocyanate with an alkali metal azide.The invention further relates to novel nitroso ureas obtained thereby, to novel N-substituted alkyl-N-nitrosocarbamoyl azides, and to novel therapeutic compositions containing, as the active ingredient, the novel nitroso ureas.

Abstract: Pentacyclic derivatives of the general formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are defined hereinbelow are useful as cerebral protectors and vasodilators.

Abstract: Apparatus for preparing corrugated sheets is described which comprises a table for supporting one or more sheets, an assembly of cutting and perforating tools for cutting corners off the sheets and making holes in them, and means for moving the table and tool-supporting assembly towards and away from one another to effect the cutting and perforating of the sheets.

Abstract: A high crystalline coke can be prepared by heat-soaking a petroleum feedstock in the presence of added dissolved sulfur, heating to effect controlled thermal cracking thereof, separating non-crystalline substances as pitch, recovering a heavy cokable residue from the pitch free feed, and subjecting the residue to delayed coking.

Abstract: A welding method for joining self-supporting structures made of thermoplastics by assembling said structures to form an area of mutual overlap, generating heat in said area to produce a welding zone having an elevated temperature and containing said thermoplastics in an at least plastic state for mutual coalescence of said structures in said area; an expanding agent is provided in the welding zone to generate a gas pressure therein for promoting coalescence of the weld. The invention is particularly suitable for welding tubes and other pipeline elements, such as fittings or sleeves, of thermoplastics and produces a tumescent weld which fills any macroscopic voids while including a plurality of minute closed cell voids.

Abstract: An apparatus for continuous distribution of at least one additive, such as a pigment or the like material, in a particulate master or base material, such as a granular plastics or the like material, comprising a stationary chamber that has a relatively small volume and includes a rotary distributor having one or more arms with cranked end portions for movement along a circular path in a substantially vertical plane that is normal to the axis of rotation of the distributor; a first inlet for feeding the particulate master into the chamber is arranged below the upper horizontal tangent line of the circular path while at least one second inlet for feeding additive into the chamber is provided above the said tangent line.

Abstract: A multi-channelled distribution network supplies hydrogen such that separated flows of hot coal paste and heated hydrogen meet in the restricted confines of a multitude of inverted caps to promote turbulent intermixing before the mixture enters the active bed of a coal liquefaction reactor.

Abstract: A method of electrolysis is described in which the electrolysis is powered by electricity generated from the energy released by the reaction between at least one of the elements liberated by the electrolysis and a reactive body. A preferred aspect of the invention provides an aqueous electrolytic vat in which the hydrogen liberated at the cathode is reacted with liquid sodium giving sodium hydride and the oxygen liberated at the anode is reacted with barium oxide, either as a liquid or a fluidized solid, to give barium peroxide.

Abstract: A variable track wheel for example for agricultural tractors includes a wheel disc having peripherally spaced connections between it and helical rails secured to a wheel rim, each connection comprising two jaws, one secured to the disc and the other, being movable, is connected to the first jaw by a screwed connection. The jaws are arranged to be clamped to a portion of a helical rail and during clamping the movable jaw moves radially outwardly.

Abstract: The invention relates to a process for the preparation of an ammonia synthesis catalyst based on fused and reduced iron oxide, with or without traces of a promoter oxide of aluminum, calcium, potassium, magnesium or silicon, in which the fused and reduced iron oxide is aftertreated with an aqueous solution of a cerium salt or with an aqueous solution of a mischmetal salt, including a cerium salt.

Abstract: A process for the preparation of an ammonia synthesis catalyst, in which an iron oxide, together with traces of aluminum, calcium, potassium, magnesium and silicon oxides, is fused in the presence of a small quantity of graphite and reduced and the reduced catalyst is thereafter treated with an aqueous solution of a water soluble cerium salt.The use of the so prepared catalyst in the synthesis of ammonia makes it possible to operate at significantly reduced temperatures and/or pressure, and thereby obtain very considerable capital and operational savings.

Abstract: Yeast is produced by fermenting hydrocarbons in an aqueous nutrient medium which includes sulfate, chloride and phosphate ions. When the fermentation is completed the nutrient medium has become depleted in mineral content and a large portion of it is purged. A calcium source is added to precipitate the phosphate ion out as calcium phosphate. The precipitated calcium phosphate is added to the yeast, which in itself is an excellent source of protein. The resulting product is suitable for use as an enriched animal feed. Meanwhile the removal of the phosphate ion eliminates a pollutant from the purge stream.

Abstract: This disclosure teaches a direct fired heater with a double casing. The double casing includes a somewhat conventional inner casing having a burner penetrating therethrough and an outer casing spaced from the inner casing to form a passage in flow communication between the atmosphere and the burner. The outer casing surrounds the burner and is provided with an acoustic inner surface to minimize escape of noise. Design of refractory linings with respect to thickness and density allows for maintenance of skin temperature of the inner casing above the condensation ranges of SO.sub.2 and SO.sub.3.