Abstract: A process for the treatment of comminuted proteinaceous materials so as to effect separation of the comminuted proteinaceous materials into fractions differing in composition is disclosed. The process comprises admixing comminuted proteinaceous materials, or fractions derived therefrom, with an organic solvent for any oil in the proteinaceous material and separating the proteinaceous material in the admixture into fractions differing in, in particular, protein content. The separation may be effected by for example subjecting the admixture, in the form of a slurry, to the influence of centrifugal force. In embodiments, a centrifuge and/or a hydrocyclone may be used. The proteinaceous materials are selected from wheat, rye, barley, triticale, peas, beans and buckwheat. Examples of suitable solvents are pentane, hexane, heptane, cyclohexane and alcohols of 1-4 carbon atoms. A variety of products are obtainable, including protein-enriched and protein-deficient endosperm fractions.

Abstract: A vertically mounted high speed winding device for parallel plied textured yarns which device has a vertical friction roller driven at a constant high speed and adapted to rotate a package by surface contact. The device also includes a traversing mechanism embodying an L-shaped lever rotatably attached at its apex to a layrail which is adapted to reciprocate longitudinally of the package at a constant stroke length. One arm of the L-shaped lever carries a traverse modulating yarn guide, e.g., an eccentrically mounted rotatable disc. The other arm of the L-shaped lever is pivotably connected to a slide block slidable in a U-track which is pivotable about a horizontal axis. A cam means is provided for changing the angular position of the U-track with increasing package diameter for the production of conical ended packages.

Abstract: A process is provided for treating tri (alkaline earth metals) tungstates with an aqueous solution containing cations selected from ammonium, sodium and potassium ions and mixtures thereof, and anions selected from hydroxide, carbonate, bicarbonate, and phosphate ions and mixtures thereof, to form a tungstate salt which is soluble in the solution and an alkaline earth metal compound which is insoluble in the solution. The tri (alkaline earth metal) tungstate can be prepared from iron tungstate, manganese tungstate, and/or an alkaline earth metal tungstate or from ores or concentrates of these tungstates, by a high temperature treatment with an alkaline earth metal donor compound, such as calcium oxide. A preferred soluble tungstate is ammonium tungstate, which can be further processed to yield tungsten trioxide and/or tungsten.

Abstract: A process is provided for preparing ammonium tungstate. In the process, a reduced calcium tungstate is treated in the presence of an oxidizing agent with an aqueous solution having at least ammonium cations and carbonate and/or bicarbonate anions, at a temperature of 10.degree. C to the boiling point of the solution. The reduced calcium tungstate reacts with the ammonium cations to form the ammonium tungstate which is soluble in the solution and with the anions to form a calcium compound which is insoluble in the solution. Oxygen and/or hydrogen peroxide are preferred oxidizing agents. The process is especially useful in separating tungsten values from scheelite ores or concentrates.

Abstract: A process for the extraction of oil from oats is disclosed. The process comprises extracting oil from comminuted oats with 2-propanol and separating the resultant 2-propanol solution from the de-oiled oats. Oat oil is recoverable from the 2-propanol solution. The 2-propanol may be in the form of an azeotropic mixture of 2-propanol and water. In a preferred embodiment the 2-propanol contains a minor amount e.g. 0.1- 1.0%, of hydrogen peroxide. The process is capable of producing a clear, lightly colored oil from oats. The oil is believed useful as a vegetable oil.

Abstract: A balanced runner system for injection moulding apparatus is disclosed. The runner system has an inlet, a plurality of runners and five gates. One of the gates is centrally located, the remaining gates being symmetrically spaced about the centrally located gate. The runners are such that the runner system is capable of supplying molten polymer to each gate at substantially the same rate. The runner system may be used to obtain a more uniform flow of molten polymer to a mould.

Abstract: The invention provides a continuous process for producing tubes from sheeting coated on at least one face with a heat sealable composition that melts at a lower temperature than the sheeting itself.

Abstract: A device is disclosed for transporting bulk materials in a shipping vehicle having walls one of which defines a door opening and doors attached thereto. The device includes a flexible liner having sides adjacent the walls of the vehicle, and stretchable connectors supporting the liner from the tops of the walls or if the vehicle has a roof from the roof of the vehicle. The side of the liner adjacent the door opening has at least two apertures in the upper portion, one being an entry opening and one a vent opening, and at least one aperture in the lower portion being a discharge opening.

Abstract: An apparatus for stringing up a rotating package holder on a ring twister with a yarn being fed to a waste jet. A rotatable pulley with a yarn guide attached is used to intercept the yarn and move it into engagement with a cutter attached to the waste jet and a yarn snagging means adjacent the package holder. The waste jet-cutter combination is also designed to cut down a full package at the completion of a winding cycle.

Abstract: An improved process for the treatment of pellets of a partially crystalline polymer to aid in the removal of volatile impurities from the polymer pellets is disclosed. The improvement comprises the step of contacting the polymer with water at a temperature at least as high as the boiling point of the solvent used in the polymerization process, the temperature being between the boiling point and the temperature at which the pellets of polymer agglomerate. In preferred embodiments the polymer is an ethylene polymer, e.g., an ethylene homopolymer or copolymer of ethylene and a higher .alpha.-olefin (e.g. butene-1), and the process is conducted as a continuous process at temperatures between 115.degree. and 125.degree.C.