Abstract: A process for hydrating in a spray tower a water-wet mixture of materials, at least one of which is hydratable, which allows the mixture to be easily formed into the desired size and shape and easily and safely dried.

Abstract: A process of moulding a product (and a product thus formed) wherein particulate ligno-cellulose such as shredded paper, flour, Portland cement, a small amount of caustic soda, and water are mixed together, placed in a mould, and subjected to both pressure and heat until set, and the moulded product is then removed from the mould.

Abstract: A gas treating process is disclosed. Hydrogen sulfide and carbon dioxide are removed from a hydrocarbon vapor stream by absorption into an aqueous carbonate solution. Hydrogen sulfide picked up by the circulating carbonate solution is oxidized to produce liquid sulfur, which is withdrawn. The carbonate solution is then stripped to release carbon dioxide and produce the lean carbonate solution used for absorption. By-product thiosulfate formed in the oxidation step is eliminated by reaction with hydrogen sulfide. Metal phthalocyanines are used as the catalyst for the elimination of thiosulfate and for the oxidation of hydrogen sulfide.

Abstract: A shale oil retort apparatus is provided for retorting oil shale under airtight conditions. The retort apparatus employs a split hub wheel device which allows for the axial feeding of crushed oil shale and the axial dispensing of spent oil shale. The retort apparatus utilizes a rotatable shaft on a stationary axle, said shaft containing three spokes that are set approximately equidistant apart. The spokes serve to feed raw oil shale, dip it into a hot oil bath and dispense spent oil shale out of the apparatus.

Abstract: A multiple hot runner injection bush for lateral tunnel gating, with a foot and a shaft heated by a heating element and a central hot sprue arranged therein, furthermore, with a heated nozzle head which contains radially extending injection channels. The technical problem of the invention is seen in the exact heat control and adjustment of the nozzle head if a plurality of mould nests is gated. The nozzle head is provided as a plate-like head and projects beyond the diameter of the shaft by a multiple distance of the diameter of the shaft (two times through five times). The nozzle head incorporates, at least, four radially extending injection channels. The nozzle head comprises a plane ring face, adjacent to the shaft, and an outer covering apron. A copper ring is attached on the ring face. The copper ring carries a spirally arranged high capacity coil heater.

Abstract: A novel process for the preparation of a pharmaceutical preparation in the form of an polyacrylate film for long-term transdermal administration of systemic pharmaceuticals comprising forming a homogeneous solution of an effective amount of a systemically acting pharmaceutical and a freeze-dried latex of a polyacrylate copolymer of methyl and/or ethyl esters of acrylic acid and methacrylic acid formed by emulsion polymerization and having an average molecular weight of about 800,000 in at least one organic solvent, forming a thin layer of the said solution and drying the layer to form a polyacrylate film and the film product produced by the said process.

Abstract: A method of coating a surface of an article block includes utilizing a mold that has its interior surface electrolessly coated with a metal such as nickel where the mold is made from mild steel and further includes depositing a resinous composition in the coated metal mold and then inserting a surface of the article and then subsequently curing the composition by exposing the mold to heat; the exterior surface of the mold is oxidized and darkened to increase the capacity for the mold to absorb radiant heat; a method of preparing the mold is provided where the mold is electrolessly coated with the metal while the exterior surface thereof is masked to prevent the deposition of the coating metal on the exterior surface.

Abstract: There is disclosed a method of producing a multi-key structure for keyboard musical instruments. A molding material is filled in a mold to form a molded structure which has a proximal end portion and a plurality of juxtaposed key portions extending from the proximal end portion. Molding is carried out in a state that the respective adjacent key portions diverge toward their free ends. The molded structure is removed from the mold, and the proximal end portion is deformed in such a manner that the plurality of key portions are brought into parallel relation to one another to provide the multi-key structure.

Abstract: A new magnetic medium permits magnetic recording either in the longitudinal or the vertical direction. The medium, unlike prior art structures, does not require a nonmagnetic substrate. The medium is a rigid magnetic disk homogeneously prepared from ferric oxide particles and polyethersulfone in ratios and proportions that produce effective and inexpensive magnetic recording media.