Abstract: Self-supporting pipelines, especially useful for installations in arctic and antarctic regions and floating on permafrost even when said permafrost is molten, comprise prefabricated field units of assembled pipe elements composed of pipes enveloped by spaced shells and having within the space between pipe and shell buoyancy-imparting and insulating means such as foamed plastic. Said pipe elements are connected with each other by flexible joints to form the pipeline. The pipelines do not require foundations or piles. The field units can be mass-prefabricated under workshop conditions independently from the weather.
Abstract: The composite wall element of this invention comprises an insulating wall element arranged within or inserted into an outer, pressure resistant, preferably load bearing wall element which completely encloses the former. Within the inner insulating wall element and/or the cavity within the outer wall element a substantially dry gas atmosphere and preferably air atmosphere is established and maintained under sub-atmospheric, atmospheric, or superatmospheric pressure. Such novel composite wall elements are superior in their thermal and/or acoustic insulation properties to heretofore known structural elements.
Abstract: A wall unit comprising panels lying at opposite faces of said unit, a seal arranged between the margins of said panels, and an insulation occupying the cavity between said panels, wherein the improvement comprises at least one insulating group extending parallel to said panels and comprising two foils capable of reflecting thermal radiation and chambers lying between said foils, the walls of which consist of insulating material. The cavity between said panels may be evacuated or it may be filled with dry air or a dry gas.
Abstract: The invention relates to welding of sheet metal covered with non-metallic layers, and relates more particularly to a method for the spot- or roller seam- welding of sheet metal covered with non-metallic layers by removing the layer from the zones to be welded and subsequently applying a rust-protective layer over the welded zones, wherein on the zones to be welded circular or strip-shaped parts of the covering layer are mechanically removed by milling, rasping or grinding; the metallic zones of the sheet metal thus stripped bare are interwelded by means of opposed electrodes; and finally on the welded zones circular or strip-shaped parts, respectively, of a layer are applied by cementing, spraying or painting, for the formation of a uniform covering layer.
February 12, 1974
Date of Patent:
November 2, 1976
by said Johann Karl Wefers SAID Otto Alfred Becker
Abstract: The invention provides a method for the electrical resistance welding of coated sheet metals, in which welding current is fed to at least one of the coated sheets indirectly through the metal layer thereof and contact is established between blanc areas thereof to be welded to each other, wherein annular or elongated knife edges are provided at the welding area of the sheet metal to be welded on or on intermediate welding pieces, and cavities are produced by embossing and/or by milling, for preserving an outer coating undamaged by the heat of welding.
Abstract: A porous, preferably negative, electrode for alkaline accumulators, characterized by the fact that its electro-chemically active inner surface amounts to between 1 and 20 sp.m. per gram for a volume porosity of between 30 and 85% and that its pore interval ranges between 0.15 and 1.0 .mu.m.
Abstract: Novel .alpha.-halo-.beta.-(4-cyclohexylphenyl)propionic acids and their salts and esters are described. Therapeutic compositions containing same and a method of treating inflammation by their administration are also disclosed.
Abstract: The glass ceramic material of the present invention has the following composition, in weight percent,:About 20 to about 60 percent of silicon dioxide SiO.sub.2,about 5 to about 40 percent of phosphorus pentoxide P.sub.2 O.sub.5,about 2.7 to about 20 percent of sodium oxide Na.sub.2 O,about 0.4 to about 20 percent of potassium oxide K.sub.2 O,about 2.9 to about 30 percent of magnesium oxide MgO, andAbout 5 to about 40 percent of calcium oxide CaO,and may contain betweenAbout 0.5 and about 3.0 percent of fluorine.The glass ceramic material is produced by melting the mixture of components and subjecting the resulting melt to a specific annealing or tempering treatment to cause formation of nuclei and ceramization. Such glass ceramic material is especially useful as bone and tooth replacement material in humans and animals.
Abstract: Novel p-cycloalkylphenylacetic acids which are substituted in .alpha.-position by a carbamylthio, loweralkylcarbamylthio, or diloweralkylcarbamylthio group, and their salts have been prepared. They possess useful antiinflammatory, analgesic, and antipyretic properties.
Abstract: Disclosed is a process for manufacturing elastic floor covering boards comprising a lower, water-permeable layer of natural or synthetic rubber particles bound together by an adhesive and a cover layer of non-woven synthetic textile fibers, which process comprises placing into a mold the cover layer of non-woven synthetic textile fibers, impregnating this layer with a resilient, heat-curable adhesive, placing the particles of natural or synthetic rubber which are likewise impregnated with said adhesive on top of the fibrous layer and subsequently compressing both layers in the mold at a temperature below 100.degree.C. and at a pressure of from 40 to 100 metric tons per square meter until the adhesive is cured. Advantageously, a woven reinforcing layer is interposed between the two layers prior to molding to provide an exceptionally strong and stable product.
Abstract: Certain substituted .alpha.-halo and .alpha.-mercaptophenylacetic acids and substituted phenylacetic acids having in .alpha.-position a sulfur-containing group, a cyano group, or an amino group, their substantially non-toxic esters, salts, and acid amides as well as 5-phenyl substituted 2-imino-4-oxothiazolidines and 5-phenyl substituted 2,4-dioxothiazolidines have a high anti-inflammatory, analgesic, and antipyretic activity, low toxicity, and/or a favorable therapeutic index with minor or no side-effects. Preferred compounds of this invention are .alpha.,m-dichloro-p-cyclohexylphenylacetic acids and its esters and salts.
Abstract: Filament-wound reinforced plastic articles and parts thereof are obtained by wetting and impregnating filaments, rovings, webs, and the like fibrous materials consisting of glass, carbon, graphite, boron, steel, asbestos, temperature resistant organic fibers, and the like with a liquid or liquefied polymerizable organic compound of a high melting point which can be polymerized by addition polymerization, and converting the wetted fibrous material into the desired wound plastic article or part thereof by winding around a mandrel and then subjecting the wound article to addition polymerization. Wetting and winding with the polymerizable organic compound are effected under conditions under which substantially no polymerization takes place. Especially suitable polymerizable organic compounds are bisimides such as the bismaleimides of a melting point which is at least 20.degree. C. below the temperature required for polymerization.
April 8, 1975
Date of Patent:
June 29, 1976
Technochemie GmbH Verfahrenstechnik of Heidelberg
Abstract: Optical silicate glasses containing titanium dioxide and having a high index of refraction and high dispersion are composed of1 % to 10 %, by weight, of silicon dioxide SiO.sub.2,30 % to 50 %, by weight, of barium oxide BaO,18 % to 24 %, by weight, aluminum oxide Al.sub.2 O.sub.3, and21 % to 30 %, by weight, of titanium dioxide TiO.sub.2.In such glasses the barium oxide can be replaced partially by sodium oxide Na.sub.2 O, beryllium oxide BeO, calcium oxide CaO, strontium oxide SrO, cadmium oxide CdO, gadolinium oxide Ga.sub.2 O.sub.3, indium oxide In.sub.2 O.sub.3, or yttrium oxide Y.sub.2 O.sub.3. Likewise, the silicon dioxide therein can be replaced partially by boron trioxide B.sub.2 O.sub.3, lead monoxide PbO, germanium dioxide GeO.sub.2, stannic oxide SnO.sub.2, zirconium oxide ZrO.sub.2, hafnium oxide HfO.sub.2, or thorium oxide ThO.sub.2.
April 9, 1975
Date of Patent:
June 1, 1976
Ernst Leitz GmbH, Optische Werke
Heinz Broemer, Norbert Meinert, Johann Spincic
Abstract: Substantially pure amino methylene phosphonic acids, such as ethylene diamine tetra-(methylene phosphonic acid), nitrilo tris-(methylene phosphonic acid), and others are obtained in a high yield by reacting .alpha.-amino mono- or polycarboxylic acids which are substituted at their amino nitrogen atom, or their alkali metal salts with phosphorous acid and/or a phosphorus trihalogenide, preferably phosphorus trichloride in the presence or absence of an inert diluent.
December 11, 1973
Date of Patent:
May 25, 1976
Joh. A. Benckiser GmbH
Friedrich Krueger, Lieselotte Bauer, Walter Michel
Abstract: Alkaline baths for treating fiber material composed of or containing native cellulose such as cotton do not cause appreciable degradation of the cellulose chain when having added thereto amino alkylene phosphonic acids and/or 1-hydroxy alkane-1,1-diphosphonic acids or their salts.
Abstract: A fluorophosphate glass which has an index of refraction n.sub.e of more than 1.57, an Abbe number .nu..sub.e of less than 70, and a relatively high positive anomalous partial dispersion +.DELTA..nu..sub.e is provided.
Abstract: An inorganic vitreous detector material which in principle is composed of the three-component system consisting of metaphosphoric acid, aluminum metaphosphate, and zinc oxide, is used for the determination of the energy of particles of high energy. Such a material may additionally contain silicon dioxide and boron trioxide.
Abstract: A method for the protection of blanc areas of sheet metal otherwise coated with layers of synthetic materials, lacquers, foils or the like, wherein the said blanc areas are covered by applying a liquid, viscous or solid rust-protective agent by frictional contact, spraying, welding or cementing and a machine for carrying out the above method, comprising means for applying a liquid or pasty rust-protective agent and/or tape or cord on said areas by temporarily moving the means for applying these agents and/or tapes or cords towards, along and away from the sheet metal and, if desired, pressing the same on and/or drying the same on the sheet metal.