Abstract: A device for feeding yarn to a knitting machine comprises a yarn guide and a drive pulley with a yarn feeding roller, mounted on a shaft for rotating said shaft. The yarn feeding roller is defined by two discs being provided, each of said discs, on the side facing the interior of the yarn feeding roller, with slots arranged symmetrically in relation to a plane perpendicular to the rotation axis of the yarn feeding roller. An elastic band runs between the discs in the respective opposing slots and forms the yarn feeding surface of the roller with a variable diameter. Spaced from the yarn feeding roller and mounted in a stationary position in relation thereto is a yarn guide in the form of a rod having its upper portion disposed at an angle to the rotation axis of the yarn feeding roller, and its lower portion disposed parallel to this axis for steady guiding yarn loops along the yarn feeding surface of the roller with a variable diameter.

Abstract: A method for preparing naphthenic acids consists in that a petroleum fraction is oxidized at a temperature of 135.degree.-140.degree. C. in the presence of catalyst consisting of manganese naphthenate and potassium naphthenate; the obtained mixture of organic oxygen-containing compounds containing naphthenic and hydroxynaphthenic acids is diluted with an organic solvent, and the hydroxynaphthenic acids are precipitated and separated; the solution of the organic oxygen-containing compounds freed from hydroxynaphthenic acids in said organic solvent is treated with an aqueous solution of sodium hydroxide; thus obtained aqueous solution of sodium naphthenates is separated; said aqueous solution of sodium naphthenates is treated with diethyl sulphate at a temperature of 90.degree.-95.degree. C. to isolate ethyl naphthenates from which a fraction of ethyl naphthenate boiling out in a temperature range of 75.degree.-170.degree. C.

Abstract: An electrical machine with cryogenic cooling having a superconducting exciting winding secured to the rotor shaft and accommodated in a cavity in the rotor filled with a coolant. At the places where the superconducting winding is secured to the rotor shaft, there are provided grooves which communicate with a channel for the supply of the coolant, extending along the axis of the shaft at one of its ends, and with a channel for the removal of the coolant, extending along the axis of the shaft at its opposite end. The coolant is removed from the rotor cavity through channels provided at both ends of the rotor shaft. The rotor shaft accounts for an improved thermal protection of the superconducting exciting winding which is cooled only by the liquid phase of the coolant at a temperature of about 4.5 K.

Abstract: This invention relates to a new and novel single unit shelf construction and to a multi-shelf assembly and comprises wire shelves having a pair of closely-spaced transverse connection ribs at each of its distal ends. A pair of vertical supports have a transverse connection rib at each distal end. The distal ends of each of the connection ribs are bent so that they are parallel to the remaining portion of the connection rib. A clamp with a central hole is positioned on top of the connection ribs of the shelf. A second clamp with a threaded central hole is positioned underneath the connection rib and the distal ends of the connection rib of the vertical support; and fastening means are used to securely urge the clamps together so as to secure together a single unit shelf unit or a multi-shelf assembly.

Abstract: An apparatus for processing complex metallic materials, such as, copper-zinc or copper-lead-zinc concentrates and also slag-containing zinc and lead, by melting these materials in an atmosphere of gas containing free oxygen, and reducing the resulting melt by means of a gaseous plasma jet formed, for instance, by nitrogen. The apparatus includes one or several plasmatrons whose nozzles are immersed in the melt at an angle to its surface for agitation of said melt by the plasma jet and for reduction of the metal oxides.

Abstract: An image intensifier comprises an evacuated tube envelope which accommodates a serial arrangement of a photocathode, an accelerating electrode having a hollow cylinder in which an element with a grid is disposed, said grid being placed on that end of the element which faces the photocathode, a focussing electrode made in the form of a hollow cylinder having a diameter equal to the diameter of the hollow cylinder of the accelerating electrode, an anode diaphragm, an electronic gate with a diaphragm and deflecting plates and an image scanning system each constituting a through-type two-conductor circuit and having terminals disposed on the tube envelope and a fluorescent screen, the distance L between the photocathode and the fluorescent screen, the distance S.sub.1 between the accelerating and focusing electrodes, the distance S.sub.2 between the focusing electrode and the anode diaphragm, as well as the lengths l.sub.1, l.sub.

Abstract: A method of dehydrating carnallite, residing in that preliminarily enriched carnallite with 39-41 wt. % water is heated up to 205.degree.-230.degree. C. by fuel combustion products having a temperature of 500.degree.-600.degree. C., and a partially dehydrated carnallite with 3-8 wt. % water is obtained. Said dehydrated carnallite is melted in a reaction zone and the melt is subjected to the action of a chlorinating agent. Thereafter the melted carnallite is allowed to settle from solid impurities and, as a result, dehydrated carnallite is obtained with water content less than 0.5 wt. %. The melting of partially dehydrated carnallite with 3-8 wt. % water is performed with the aid of fuel combustion products having a temperature of 700.degree.-1150.degree. C. These products are introduced tangentially to the surface defining the reaction zone at a rate ensuring the formation of an intensive eddy flow of gases, which occupies the whole volume of the reaction zone.

Abstract: A raw mix for the production of portland cement mix consists of a lime component, a clay component, an iron-containing component, and a modifying additive comprising hydrolysis and yeast production waste liquors and products of neutralization of chlorine-containing off-gas from titanium and magnesium production, with the following proportioning of the components (% by weight):______________________________________ lime component 50-52 clay component 7.5-10 iron-containing component 1-1.5 hydrolysis and yeast production waste liquors 30-38 products of neutralization of chlorine- containing off-gas from titanium and magnesium production 1-9. ______________________________________The raw mix according to the invention exhibits improved physico-chemical and mechanical properties. Fluidity of the mix is from 58 to 60 mm, the degree of decarbonization is as high as 18%. Clinker prepared from the mix according to the invention has a strength of from 550 to 560 kgf/cm.sup.2, and the roasting temperature is 80.degree.

Abstract: A drip preventive spill-proof spout comprised of a highly water-repellant elastomer material, such as natural or synthetic rubbers, the preferred material being silicone rubber. The spout is particularly adapted for use with wine bottles, the mouths of which are not standardized. The elastomeric quality of the device enables it to be fitted to a large variety of wine bottles. The spout comprises a funnel formed at an angle of approximately 45.degree. to a horizontal line, thus making for maximum efficient drop retention and return of the residue to the bottle. The angle of the funnel relative to the horizontal or the vertical creates or gives rise to a sharp pouring edge over which each drop of wine must pass when the wine is being poured from the bottle into a glass. This edge and the material from which this spout is made are critical to the operability of the present invention. The material, preferably silicone rubber, causes the wine, which is mostly water, to "bead up" on the surfaces of the spout.

Abstract: A method for drying granulated dielectric materials including superhigh frequency heating of granules which are moved in heating space by a strong hot air flow. The granules are moved at a variable speed, a negative temperature gradient is produced, and humid air is removed from the heating space. According to the invention, the apparatus for drying granulated dielectric materials includes a superhigh frequency generator and a drying chamber which, in turn, has an input waveguide and an output waveguide interconnected by a waveguide elbow. An air inlet and a granules inlet are connected to an input of the input waveguide. The output waveguide has an air separator arranged at its input and a resonator bin arranged at its output.

Abstract: A carburetor comprising a body defining a throat, a throttle slide member slidably mounted on the body and disposed in the throat, and a tapered metering rod or needle mounted on the slide member and extending downwardly into a fuel supply tube leading into a fuel reservoir or bowl secured to the body. The slide member has front and rear, substantially flat panels disposed in substantially parallel relation, with the front panel being shorter than the rear panel for the purpose of providing air at the outlet of the fuel supply tube even when the slide is in a closed position and for directing air toward the outlet when the slide is in an open position. The body is provided with a substantially axial groove intersecting the fuel outlet at the throat for the purpose of directing high speed air flow toward the metering rod and over the fuel outlet when the slide is opened.

Abstract: An improved veneer lathe which cuts off a sheet of veneer from a log supported rotatably by applying a torque directly to the outer periphery of the log. An external force for cutting the log is fed from the vicinity of a knife included in the lathe. The log core is not subjected to a load attributable to a cutting resistance so that even logs of a poor quality are usable for turning veneer sheets therefrom, enhancing the yield of plywood production.

Abstract: According to the invention, a composition for making leads in integrated microcircuits comprises gold bornylmercaptide of the following formula: ##STR1## rhodium bornylmercaptide of the following formula: ##STR2## bismuth dibutyldithiocarbamate, chromium abietinate, colophony, chloroform, and cyclohexanone, the ratio of the components being as follows (% by weight):______________________________________ gold bornylmercaptide 22.2-20.0 rhodium bornylmercaptide 1.0-1.1 bismuth dibutyldithiocarbamate chromium abietinate 1.55-1.4 1.10-1.20 colophony 10.55-9.5 chloroform 31.8-33.4 cyclohexanone 31.8-33.4. ______________________________________The proposed method for making leads in integrated microcircuits, using the above composition, resides in that applied to a cleaned substrate is an adhesion film of lead-borosilicate glass 2,000 to 2,500 A thick, said glass comprising 40% by weight of lead oxide, 10% by weight of boron oxide, and 50% by weight of silica, by baking, at 850.degree. to 900.degree. C.

Abstract: A method for producing a phenol foam plastic, consisting in that polycondensation of phenols with formaldehyde is conducted with simultaneous foaming and curing in the presence of a foaming agent and an acid or alkaline catalyst. Used as the phenols are pyrocatechol, hydroquinone, resorcinol, 5-methyl resorcinol, shale alkyl resorcinols, shale total phenols, or various combinations of said phenols. The method is simple and permits obtaining a foam plastic with improved physico-mechanical properties.

Abstract: Electrolyte for electrochemical polishing of articles made of titanium and titanium alloys contains 45-70 wt.-% sulphuric acid, 4-20 wt.-% nitric acid, 20-35 wt.-% hydrofluoric acid, 0.4-1.9 wt.-% sodium salt of L-sulphocarboxylic acid containing 17 to 20 atoms of carbon in combination with 0.1-1.6 wt.-% sodium salt of carboxylic acid containing 17 to 20 atoms of carbon or 1-2 wt.-% alkyl sulphoureid, 4-20 wt.-% water.The present invention increases by 20% the dispersive capacity of the electrolyte which produces a high surface finish on the article, uniformity of the electric potential and improves corrosion resistance of the treated article.

Abstract: A method of and apparatus for tenderizing a veneer. The method has the steps of forming cuts in one of the surfaces of a veneer transferred in a stretched condition, and bending the veneer toward the side opposite to the cut surface, thereby to allow a number of cracks to be generated from the cuts, thereby to tenderize the veneer and to avoid the curling of the same.

Abstract: A data processing device for variable length formats includes a control unit and a storage unit coupled to the control unit. Two data exchange buses are each coupled to a respective data input and to a respective data output of the storage unit. Two switches are coupled to the control unit and to respective data exchange buses. An arithmetic/logic unit is coupled to the control unit, to the switches and to the storage unit. A data shaft unit is coupled to the data exchange buses and to the control unit. A data masking unit is coupled to the data exchange buses, to the control unit and to the switches. This device enables the preparation for processing of multibyte data fields arbitrarily arranged with respect to the word boundaries in main storage. The data shift unit provides automatic alignment of the bytes of the operands relative to each other. The data masking unit masks irrelevant bytes of the first and last words of each operand.

Abstract: A special-purpose digital computer for statistical data processing comprises a random-number generator, four stochastic data rounding units, of which the first two stochastic data rounding units are connected to input data lines, a shift register unit, and three receiving registers. The first and the third receiving registers have their inputs interconnected and coupled to the output of the shift register unit. The input of the shift register is connected to the second receiving register and to its own output. A single-time step multiplier is connected to the two last stochastic data rounding units. Senior and a junior address digit registers are interconnected and coupled to a decoder. A logical memory is connected to the decoder, to the single/time step multiplier, to the output lines, to the first two stochastic data rounding units, to the first receiving register, and to the junior address digit register.

Abstract: A device for controlling a butt welding machine includes a pressure equalizing hydraulic slide valve connected to a manifold between the rod space of a clamping hydraulic cylinder and a reversible hydraulic slide valve coupled to both the delivery and drain manifolds of a hydraulic fluid supply system. Upon upsetting, the rod space communicates through the pressure equalizing hydraulic slide valve with the drain manifold, providing the same pressure above and beneath the piston and releasing a part of the clamping force. Provision is made for a programmed control unit or timer for energizing electromagnets adapted for switching the pressure equalizing hydraulic slide valve and a follow-up or tracking slide valve of a hydraulic drive adapted for carrying welded parts.

Abstract: An improved medical device container and method of manufacture thereof, wherein the container is adapted to be opened manually and dispense the contents onto a sterile field without the need of manual contact. The container is a thermally formed blister package and features a tray having at least one depression which is sized and shaped to receive a sterile medical appliance, and a pliable backing sheet having at least one flexible insert affixed thereto. The backing sheet is bonded to the periphery of the tray, and the insert engages the medical device and urges it into firm contact with a portion of the depression to secure the device therein. The backing sheet is adapted to be manually peeled away from the tray and thereby pull the flexible insert out of the depression so that the medical device may fall freely onto a sterile location without the need for manual contact.