Abstract: An improved holder assembly for self-baking electrodes in an electrothermal smelting furnace comprises a plurality of contact clamps which are pressed towards the electrode by hydraulic presses between the clamps and a cylindrical body arranged externally around the clamps. The holder assembly is further equipped with means for conducting current, coolant and/or pressure agent to the contact clamps. The contact clamps extend at least up to the zone where the raw, unbaked electrode paste is unaffected by the heat from the smelting furnace. The cylindrical body extends up from the area of the presses. The cylindrical body is slidably arranged with respect to the contact clamps. Each of the contact clamps is separately suspended and may be moved individually with respect to each other and with respect to the surrounding cylindrical body.

Abstract: A sound masking system for generating background sound. The background sound is automatically adjusted to ambient noise levels by adjusting the amplitude of the frequency levels detected.

Abstract: A panel joining system of the kind that comprises two rigid and preferably metal plates between which a suitable insulating fill material is inserted, and where the panels are arranged in flush formation to one another, and each one possesses a grooved inset with respect to the plane thereof at the end on one of its faces at least, for the purpose of inserting a join cover to conceal the connection between panels from the outside, and where each panel possesses also a second innermost slot or groove close by to the first such groove as described, for the purpose of housing a bolt head or nut whose function is to secure the join between panels and, if applicable, to attach them to a stationary anchorage.

Abstract: In a diaphragm type pump, a minute amount of the operating fluid is supplied instantaneously from an oil reservoir to an operating chamber at the final stage of the suction stroke in a main cylinder, and an excessive amount of the operating fluid and/or bubbles are discharged into the oil reservoir in the delivery stroke in the main cylinder. The minute amount of the operating fluid is within the range of 0.1 to 2% of the whole volume of displacement of diaphragm.

Abstract: This invention relates to new chiral organoboranes of the general formula ##STR1## in which X represents a methylene group or a sulphur atom, n and p are 0 or 1, and to a preparation process of these compounds, consisting in reacting a bicyclic substituted di- or tri-thiane with a borane such as B.sub.2 H.sub.6 or BH.sub.3 : Lewis base.

Abstract: The present invention relates to new amino-functionalized acrylic copolymers, their preparation and their use in peptide synthesis.

Abstract: The disclosed invention is an apparatus for connecting two current conducting tubes, which also conduct fluids such as for example, a coolant. The connection apparatus conducts current from one tube to the other through a sleeve, the said tubes having a machined external surface against which the sleeve is pressed. A hose receiving hydraulic pressure is disposed between the sleeve and an external casing for providing a removable pressure against the sleeve for clamping the pipes in the sleeve. The present invention may be used in conjunction with a holder assembly for electrodes in an electrothermal smelting furnace.

Abstract: The invention relates to a method and apparatus for charging an electric smelting or reduction furnace. In accordance with the invention, a charge tube movable within the roof or smoke hood of the furnace and is normally held in a protected position therein. When charging of the furnace is desired, the charge tube is lowered into the furnace to serve as a means for channeling charge material into the furnace. Preferably, the charge tube is operative to accumulate charge material while in its protected position and to release the material as it is lowered toward the furnace pot.

Abstract: A method of manufacturing a thin net by a polycondensation reaction is disclosed. One of the reactants is deposited upon a template and subsequently the second reactant is also deposited on the template. An embossed structure is obtained which can then be biaxially oriented to form a net sheet if desired.

Abstract: A mattress comprising a plurality of spaced springs, a plastic support platform having a plurality of extruded unoriented plastic spaced longitudinal support members and a plurality of extruded unoriented plastic spaced longitudinal stabilizing members, at least one of said stabilizing members being in position in each space between said longitudinal support members, said stabilizing members being smaller than said support members, a plurality of extruded plastic spaced cross-stabilizing members that intersect said support and stabilizing members substantially at a right angle and are integrally joined at the crossings, said cross-stabilizing members being oriented and smaller than said longitudinal support members, said support platform being in position on top of said springs with said longitudinal support members extending along the length of the mattress in contact with a majority of plurality of springs, said longitudinal members having a breaking load of at least about 35 pounds for a strip having one l

Abstract: A tubular shaft for rotary cultivators, to which shaft (2) there is attached to a series of tools (4), the tip of each tool comprising a working face (unreferenced) at an angle .alpha. to the ground (9) where .alpha..gtoreq.15.degree. and an approach face (7) at an angle .beta. to the working face where 35.degree..ltoreq..beta..ltoreq.75.degree. and also where .alpha.+.beta..ltoreq.90.degree.. The tools (4) are attached throughout the whole length thereof, suitably spaced away from one another, there being at least one such tool per diameter, and all arranged in an orderly fasion so as to cover the whole length of the shaft with no limit, the tools being set at angles to one another so that their tips describe one or several helical paths from one end of the shaft to the other.

Abstract: A flexible shaft-coupling of the type having one coupling part comprising a hub with arms extending radially therefrom and a second coupling part having radial projecting portions extending between the arms separated by elastic pieces therebetween. The second coupling part comprises a plurality of similar pieces, each including a V-shaped radial projection connected to wing portions extending circumferentially from the open ends of the V. The ends of the wing portions abut each other successively and are connected to form a continuous external housing having the point of each V projecting inward and each V-shape outwardly open. A plurality of drivers affixed to the opposing shaft mate with the V-shaped openings.

Abstract: The present invention relates to an electrode holder assembly for self-baking electrodes in an electrothermic smelting furnace. The electrode comprises an electrode casing having vertical fins projecting radially outwards from the casing. A plurality of clamping means are slidably arranged on said fins. The clamping means function both as means for conducting current into the electrode and as means for holding the electrode in position. The clamping means impose only tangentially forces on to the electrode in the baking zone. Protection shields are preferably arranged in lateral direction around the electrode, the shields being arranged between the clamping means or outside. Means for supplying air/gas into the space between the shields and the electrode in order to improve the baking conditions are provided.

Abstract: A color separation optical system consisting of prism blocks is provided with a bias light source and a bias light guide-in device. The bias light guide-in device consists of a plane parallel plate located with an air gap in front of an entrance face of the color separation optical system. The plane parallel plate has light reflecting surfaces to reflect the bias light toward the entrance face. The light reflecting surfaces are provided at the periphery of the plane parallel plate and are desirably made into light diffusing faces.

Abstract: Selective extraction of zinc from chloride solutions which contain iron, copper and zinc, where the zinc is extracted in organic phase by means of tri-n-butylphosphate in an organic solvent. The extraction is carried out on chloride solutions in which the lead contents is possibly lowered and where the copper contents is maximum 50 grams per liter higher copper concentration being reduced for instance by electrolysis in diaphragm cell. The zinc containing organic phase is washed, and zinc back-extracted and conducted to a diaphragm cell for electrolysis of zinc, the used electrolyte being returned to the back-extraction step. The raffinate from the zinc extraction is used for repeated leaching of metals after preceding reoxidation.

Abstract: Manganomanganic oxide or a material containing manganomanganic oxide as its principle ingredient is used as a colorant with good staining and retention properties in compositions of water emulsion based coatings.

Abstract: Manganomanganic oxide fume or a material containing manganomanganic oxide fume as its principle ingredient is used as a color pigment in the formulation of solvent-base paints.

Abstract: The invention relates to a process and apparatus for making a thermoplastic polymer sheet and particularly a thermoplastic polymer netting structure. It further relates to a process and apparatus for splitting a thermoplastic polymer sheet or net structure so as to divide the sheet or net at the center thereof into two thin sheets. According to the invention, a previously formed plastic sheet or netting structure is reheated and then placed between two opposed heated smooth surfaces such as metal rolls. The sheet or net is heated to a temperature within the range of temperatures wherein the adhesion of the resin forming the sheet to the metal rolls is good and where its cohesion is poor. The opposed faces of the sheet or net structure adhere to the heated smooth surfaces. The opposed heated surfaces are separated; this causes the sheet or net to split in half to follow each surface.

Abstract: Paint formulations employing zinc and manganomanganic oxide fume or a material containing predominantly manganomanganic oxide fume as a corrosion inhibitive system.

Abstract: A holder assembly (2) for an electrode (1) in an electrothermal smelting furnace is movable suspended from a suspension means and comprises a plurality of contact clamps (3) which are pressed towards the electrode (1) by means of pressure producing means and an externally arranged thrust member (5). The holder assembly (2) is further equipped with means for supplying current to the electrode. The thrust member (5) is formed of the cooling shield which surrounds the electrode and the holder assembly. On the inner surface of the cooling shield (5) a plurality of vertical, current conducting rails (7) are arranged. Sliding contacts (10) arranged on the pressure producing means (4) are thrusted against the rails, providing proper electrical contact. The rails (7) are preferably insulated from the shield (5). The shield (5) may preferably be stationary arranged with respect to the electrode and constitute an integral part of the furnace roof/hood (6).