Abstract: The present invention pertains to a gas purging device for introducing gases and/or solid reactants into the metal melt of a metallurgical crucible, consisting of a gas purging plug, a well nozzle sleeve surrounding it, and/or a well nozzle surrounding the plug or the nozzle brick, with a mounting device arranged in the area of the respective end face.
Abstract: A method of marking forms such as pharmaceutical tablets, capsules, confectionery and food with a water based ingestible ink comprising mixing pigments, a polymer, and optionally a plasticizer into water to form an ink dispersion, and printing the ink dispersion onto said forms to form a trademark, logo, or the like.
Abstract: A vibrating tamping float for smoothing the top surface of freshly poured concrete, pushing coarse aggregates down into the concrete while allowing cream to surface, and reducing a formation of large air pockets in the concrete, includes a float body having a bottom surface and a pushing device for pushing coarse aggregates down into the concrete while allowing cream to surface. The pushing device includes a plurality of ribs mounted on the bottom surface of the float body. The ribs have a ramp on front and rear portions thereof for providing a smooth entrance into the concrete and pushing coarse aggregates downward as they are slid back and forth in the concrete. A vibrator is provided on the float body for vibrating the float body to reduce a formation of large air pockets in the concrete, to aid in pushing the coarse aggregates on the surface down into the concrete, and to aid in leveling-off and smoothing the top surface of the concrete.
Abstract: The present invention pertains to a process for preparing a benzo(a)pyrene-free, carbon-containing, refractory ceramic material that can subsequently be used for preparing ceramic preforms.
Abstract: The invention concerns a process for producing metal hydroxides with a small specific area in which the metal hydroxide is produced by hydrating a corresponding metal oxide and then treating it under pressure in an autoclave.
Type:
Grant
Filed:
April 16, 1993
Date of Patent:
March 28, 1995
Assignee:
Chemson Polymer-Additive Gesellschaft m.b.H.
Abstract: A re-inkable ribbon cartridge for use in a printing device for printing on a sheet of paper and obtaining a consistent darkness of print. The ribbon cartridge has a base member with an exit arm and an entrance arm extending from the base member with a print space between ends of the arms. A ribbon storage chamber is formed in the base member, and an ink ribbon extends from the ribbon storage chamber and through the exit arm, the print space, and the entrance arm to return to the ribbon storage chamber. A drive wheel is mounted in the cartridge for moving the ribbon out of the storage chamber with a press wheel that presses the ribbon against the drive wheel and meters ink onto the ribbon. An ink reservoir chamber is formed in the cartridge, and a foam pad containing ink is positioned in the ink reservoir chamber. A wick extends from the foam pad and contacts the press wheel to transfer ink by capillary action from the foam pad to the press wheel which meters the ink onto the ribbon.
Abstract: A polish composition for pharmaceutical tablets, food products and confectionery pieces comprises beeswax, carnauba wax, water and emulsifier. A polish composition for pharmaceutical tablet, food products and confectionery pieces comprises wax, water and an emulsifier with an HLB value of about 16 to about 17.
Abstract: A method of making a boat includes the steps of forming an integral hull having a rear outer wall by applying successive layers of an outer smooth coating, resin and fibers to a female mold, and allowing the hull to cure, separately forming a rear inner wall by applying sucessive layers of an inner smooth coating, resin and fibers to a male mold and allowing the inner wall to cure, attaching the rear inner wall to the inside of the hull at a position spaced away from the rear outer wall, injecting a syntactic foam comprising a plurality of microspheres encapsulated in resin between the rear inner wall and the rear outer wall to form a core between them, which core bonds throughly to the inner and outer walls forming a strong, sandwich structure after the foam core cures.
Abstract: An electromagnetically lossy liquid- or gas-tight fusion seal for use as a low pass radio frequency signal filter constructed as a matrix of glass binder and ferromagnetic and/or ferroelectric filler. Metal cased electrical filters are made by reflowing the material to form fused glass-to-metal seals and incorporating electrical thru-conductors therein which may be formed as inductive windings.
Abstract: The present invention pertains to a device for preparing and feeding a monolithic ceramic mass into a metallurgical melting vessel, including a mixer 30 and a feeding device 32, characterized in that the mixer 30 and the feeding device 32 are designed as a compact unit 28 for arrangement above the metallurgical vessel, wherein the mixer 30 and/or the feeding device 32 are arranged relative to one another and movably such that the mass prepared in the mixer 30 can be directly introduced at any desired point of the metallurgical vessel via the feeding device 32.
Abstract: The present invention pertains to a refractory casting slip consisting of a refractory matrix material and a finely divided reactive component, as well as a hydraulic binder and various additives, which can be discharged as a free-flowing mass upon addition of water.
Abstract: A hanging-folder file frame for hanging folders which have two rigid top edge members with end hooks, and a web which extends downwardly from one top edge member to a fold line and extends upwardly from the fold line to the other top edge member, comprises a first U-shaped end frame member which has a base portion with two legs that extend upwardly from the base portion and terminate in top portions, a second U-shaped end frame member which has a base portion and two legs that extend upwardly from the base portion and terminate in top portions, a pair of side rails that extend between the first and second U-shaped end frame members, and corner caps which connect the ends of the rails to the top portions of the end frame legs. The corner caps have key holes that receive keys formed in the top portions of the legs to present rotation of the corner caps. The top edge members of the hanging folders cross brace the file frame.
Abstract: The present invention pertains to a portland cement clinker containing the following amounts of clinker phases, in wt. %:C.sub.3 S: 30 to 80,C.sub.4 A.sub.3 S: 5 to 30,C.sub.4 AF: <30,C.sub.2 S: <40,C.sub.3 A: <20,and an SO.sub.3 content between 2 and 8 wt. %, obtained by calcining a raw material mixture containing CaO, SIO.sub.2, AL.sub.2 O.sub.3, and Fe.sub.2 O.sub.3 in the presence of an additive containing SO.sub.3 and an additive containing fluorine at temperatures between 1,150.degree. C. and 1,350.degree. C.
Abstract: The invention relates to a metallurgical vessel, in particular a transport ladle or a treating ladle, for the production of steel with a bottom (2b) having a refractory lining (3) with a basic working layer (5). In order to create a durable lining it is provided that the working layer (5) consists at least in part of dry basic bulk material, the upper side of which is covered, before the vessel (1) is heated for the first time, by a chemically hardened protective layer (6) and which, after the vessel (1) has been filled, is partly present as a monolithic layer or the upper side of the working layer (5) is covered, before the vessel (1) is charged for the first time, by a monolithically fritted basic layer formed by heating the bulk material. The invention furthermore relates to a method of making the refractory linings of such vessels.
Abstract: The present invention pertains to a device for installing and removing gas purging plugs (17) for metallurgical vessels, comprising a guide (7) for axially displacing the gas purging plug (17). On the one hand, movement exactly in the axial direction can be achieved during introduction, and, on the other hand, the extracted gas purging plug can be brought into an ejection position by providing hinges (6, 11), which permit at least two independent pivoting movements of the gas purging plug (17) around different axes (6a, 11a).
Abstract: This invention relates to a disposable foot warmer comprising an inner bag capable of being applied to socks or stockings to warm a foot, and the inner bag is shaped so as to have an area and a thickness which does not protrude out of the plantar arch of a foot, so that the inner bag may be used as being applied to socks or stockings at their portion confronting the plantar arch.
Abstract: A detachable connector apparatus to provide an outlet from a bag includes a hollow nipple having a stem extending through the bag, and a nipple clamp engaged with the nipple and a portion of the bag. The bag may be supported in a pouch and locked thereto by a locking ring, which engages the nipple clamp. An optional end cap is provided to stop the fluid flow and seal off the nipple.