Abstract: A device including a drill bit is disclosed. The bit preferably comprises lug members, joined by a support member, each lug member includes a through hole, bearings rotatably mounted on the lug members which bearings support cutter members, a sleeve with lubricant mounted upon the support member, a central channel within the sleeve whose lower end can be closed or opened with a reciprocating valve-plate, an annular piston snug-fitting between the sidewalls of sleeve and central channel, which piston has a discharge valve outletting the lubricant through the piston, a spring disposed in the sleeve, rods mounted in the sleeve and inserted through the holes, lubrication channels arranged in the lug members and communicating the lower portion of sleeve with the bearings for lubrication thereof. The rods are coupled to the piston and the valve-plate. Embodiments include shafts supporting the bearings. Some shafts are hollow and have a coolant system.

Abstract: A monitor embodiment, monitoring overflow levels in a bathtub, comprises an input water unit, including a control circuitry, coupled to a hot-cold water facet; a water level detection unit including telescopically joined tubes with a floatable lowest tube associated with an indicator, an uppermost tube fixed to the input unit, sensors attached to non-lowest tubes variably coupled. The sensors detect the indicator's position reaching a predetermined alarm or shutoff level, causing respective initiating an alarm signal, or terminating the input unit's water flow. Another embodiment additionally comprises an output water unit associated with the circuitry, incorporating a temperature sensor and a user preset-temperature selector. The output unit outlets cooled water from the bathtub, the input unit inlets hot water until the preset-temperature is reached, provided no alarm signal was issued. An additional sensor, incorporated in the input unit, allows adding the hot water when it's hotter than the bathtub water.

Abstract: The inventive gear drive comprises toothed wheels with teeth of toothed crowns interacting with single- or multi-flow elements. Working profiles of the interacting teeth comprise piecewise and/or pointwise conjugate, convex at a tooth point and concave at a tooth root arc-shaped sections continuously connectable to each other or to involute sections. The interacting toothed crowns are so embodied that a phase gap of the face tooth intermating at a discrete angle from a point, where the interaction of profiles ends at a point, where the interaction of the face profiles of the next tooth pair starts. The drive is so embodied that the face tooth overlap ratio thereof is less than 1. The so improved teeth provide for high level of the contact tightness and absence of axial forces at engagement, increase the structural flexibility of the gear drive teeth in order to improve their qualities.

Abstract: There is disclosed a hydro-electric generating device comprising a solid plate fixedly supporting two bearings, which bearings rotatably support a shaft, the plate has a cutout fillable with water subjected to wave motions; a turbine fixed on the shaft. The turbine has a plurality of blades disposed in the cutout. The device further comprises a transmission, kinematically connected to the shaft, an electrical generator mounted on the plate and driven by the transmission, and a forklift furnished with wheels. The plate is secured on the forklift, and the forklift provides for a three-dimension adjustment that constitutes relocation of the generating device along the coastal line, displacement of the generating device from and to the current waterline, and vertical displacement of the plate and turbine of the generating device depending upon the current wave height. The device can be supplemented by a mat placeable on the coastal surface.

Abstract: The claimed method and apparatus relate to cryogenic technology, particularly to purifying and separating by distillation a target heavy component concentrate thereby obtaining target components, e.g., krypton and xenon, and isotopes of light gases such as deuterium, tritium, helium-3. The method includes temperature-stabilizing a target heavy component concentrate flow, a low-boiling target component fraction flow, and a high-boiling target component fraction flow, irradiating the flows with ionizing radiation thereby obtaining light gas isotopes, purifying the flows, concentrating the light gas isotopes in the flows with subsequently extracting thereof, purifying the production flows from nuclides, using xenon as the high-boiling target component of the concentrate and using krypton as the low-boiling target component of the concentrate. The claimed apparatus can be used for implementing the method.

Abstract: The proposed gas discharge laser comprises extended solid main discharge electrodes, at each of which at least one ultraviolet pre-ionizer is placed, a gas flow area being formed by means of dielectric gas flow guides and the work surfaces of main electrodes and the pre-ionizers being placed outside of the gas flow area for illuminating a space between the main discharge electrodes through a gap defined between the main electrodes and dielectric guides. The proposed invention makes it possible to design a gas discharge laser for a high pulse repetition frequency mode with high-quality laser radiation.

Abstract: A power installation is proposed for conversion of airflow energy into compressed air energy used by a pneumo-motor or/and by an electro-generator associated with a control system. An embodiment of the installation comprises a number of turbine units arranged in box-sections serving as the walls and roof of a truck. The turbine unit includes X-shaped members supporting a shaft with a turbine driven by a resistance airflow appearing during movements of the truck. The rotation of the turbines is conveyed to a pump, charging a tank with compressed air, used for driving the truck. In embodiments the turbines' blades may comprise a load and may revolve in mutually opposite directions. The installation may include an additional compressor, or may include a first muff connecting the pneumatic motor to a power train, an additional fueled engine, and a second muff connecting the fueled engine to the power train.

Abstract: The invention relates to the automobile industry, is usable in transportation means differential drives capable of automatically blocking the wheels, and aimed at simplifying the self-blocking differential's design, reducing dimensions, easing the manufacturing, increasing the differential's strength and efficiency. The differential comprises a drive housing, provided with half-axial elements, arranged therein coaxially to each other, whose external surfaces are provided with helical grooves of an opposite spiral direction, rolling members in the form of balls fill in a chain manner at least one closed-loop channel arranged in the housing, and a part thereof made open for insertion of segments of the balls into the grooves. According to the invention, the longitudinal section of the channel is made of a rectangular longitudinal cross-section with rounded external corners, the transversal cross-section of branches of the channel is equal to the ball's diameter and the number of balls in the channel is odd.

Abstract: A method of interactive television providing for generating, transforming or displaying video information taking into account individual peculiarities of the user's eye and individual peculiarities of a group of viewer's eyes. The method provides simultaneously all or, at least, two operations from the above operations of formation, conversion and transmission of video signal and display of video information perceptible on the screen of information display facilities for one and/or a group of users or an unrestricted group of users. This is accomplished by one or a combination of various video editing and transmission adjustment techniques.

Abstract: A method for formation of projection systems color video-images comprises: preliminary programmed processing of video-signals, dividing them into three primary colors components, and generating frame- and line-synchronizing pulses for CRT raster, provided by processing means; formation of three primary color images adjacently positioned on a screen of a single projection type one-beam CRT, the screen of which is divided into three rectangular areas for red, green and blue images wherein each area is coated by a red, green, or blue color phosphor layer respectively, and each image of a primary color is located on the corresponding phosphor layer of its color; superimposing the images to form a combined color image by optical means; displaying the combined color image on a common projection screen.

Abstract: A lamp socket is disclosed for connecting an electric bulb, having a base, base contact, and bottom contact, to an electrical grid. The socket comprises (a) a clamp including a spring-loaded embracing section with a first contact, capable of passing the base through in an open position and gripping it in a closed position, and a spring-loaded dielectric retainer, having a second contact, capable of retaining the section in the open position and releasing it into the closed position upon being depressed by the base, and (b) a spring-loaded clasp, capable of expanding the section in to the open position. While the clamp is being in the closed postion, the first contact is depressed by the base contact, and the second contact is depressed by the bottom contact. The section and retainer can be made as a single whole, and spring-loaded by one spring. The socket increases safety of operation.

Abstract: The proposed optic-fiber connector is used for interconnecting optic-fiber cables. It comprises a receptacle with spring-loaded centralisers and two plugs with ferrules. The centraliser at each side includes an embracing portion, fixed end, movable end furnished with projections. The receptacle includes two sliders, each having a lock with a releasing knob. Each plug is provided with —a movable grid for compressing a spring-loaded insertion, —an arm for moving the grid, and —a fixing device. The embracing portions tightly encompass the ferrules. The slider essentially fixes the plug in the receptacle, and releases the grid for displacement. The insertion produces a force required for compressing the counterpart ferrules.

Abstract: The proposed invention relates to methods of precious metal recovery and may be applied to the recovery of precious metals from various types of mineral raw source materials containing chlorides of alkali and earth metals, e.g. collective concentrate produced from clay-salt residue of potassium production, or marker clays, etc. This method includes chlorinating roasting of the collective concentrate produced during enrichment of the material with residual chlorides content of 7-13%, or natural concentrate with up to 15% chlorides content. Thereafter, the cinder is leached by an aqua-regia solution, the precious metals are recovered from the pulp via of sorption, chlorinating roasting is held at 600-700° C., the precious metals are leached from the cinder using diluted solution of aqua-regia, and then via sorption. The process is cost-efficient due to the use of chlorinating agent, reduction of the process steps number, decreasing of the roasting temperature, and the leaching by diluted acid.

Abstract: A two-stroke opposite radial rotary-piston engine is proposed, comprising a block including sleeves, pairs of pistons disposed within the sleeves and oppositely movable, guiding bearings, a power takeoff shaft, rotors mounted thereon having an inner surface formed by a closed curved line, the rotors' transverse axes are predeterminedly disposed. On the frontal part, the rotors have concaved surface portions along the curved line. T-like traverses are mounted, pair-wise spanning the pistons. The traverses include convex protrusions, cooperating with the concaved portions during the start of the engine. A clearance between the concaved and convex portions is provided after the start. The engine comprises support bearings, coupled to traverses. Support bearings include an external bushing, rolling over the inner surface of the rotor associated with the traverse, thereby impelling the rotor.

Abstract: The proposed plug-and-socket connector assembly comprises a male plug with contact pins and a female receptacle with contact sockets. The receptacle comprises a slider, opening the sockets to pass the pins and closing them by tight clamping, an arm displacing the slider, a lock holding the slider so that the pins freely penetrate into the sockets, and a lock releasing button. Optionally, the arm can be substituted by a knob, shifting the slider on guides. The slider is designed as a frame with a grid of plates passing through rows of the sockets shaped as clamps having embracing portions for tightly gripping the pins. The first sockets' ends are fixed in the receptacle, the second ends thereof are movable, varying the embracing portions. The proposed assembly improves contact, simplifies the design of such devices, and reduces their size.

Abstract: A wind tunnel is provided usable for training of sportsmen-parachutists and entertainment purposes. The tunnel comprises a channel, including sequentially arranged and interconnected components: an input confusor, a first working zone, an intermediate confusor, and a second working zone. The working zones are shaped as diffusers, having different longitudinal flow speed gradients, so that the working zone having the lesser longitudinal speed gradient is shorter, whereas the working zone having the greater longitudinal speed gradient is longer. A honeycomb is arranged between the working zones. The entrances and exits of the working zones are equipped with safety nets. The structural design of the tunnel makes it possible to simultaneously train parachutists for team acrobatics and artistic types of parachuting under conditions, maximally adapted to a given type of training, thereby improving a training quality and substantially increasing the tunnel's cost effectiveness.

Abstract: The invention relates to sports training devices and can be used for training a volleyball spike-motion. The inventive device comprises a bearing frame, a ball, and a unit for returning the ball to the initial position thereof, which unit is provided with an elastic stretching connected to the frame by one end thereof, a rod whose one end is fixed to the frame in such a way that it has at least two degrees of freedom, whereas the second end of the rod is connected to the ball, and the second end of the stretching is connected to the rod. The frame is also provided with a limiter of traveling the rod. The device enables the ball to be moved along an arc, thereby increasing the quality of the spike-motion training, and improves effectiveness and safety of the training.

Abstract: A sea electrical survey method for hydrocarbon deposits, situated under seabed not exceeding 10 meters of depth, is disclosed, comprising: providing a plurality of multi-channel bottom systems with receiving lines having at least three electrodes and capable to register electromagnetic signals, excitation devices generating a series of computer-controlled alternating-sign pulses, a horizontally positioned dipole, synchronizing the excitation devices and bottom systems, submerging the systems upon the seabed along a predetermined direction, aligning the receiving lines, moving the dipole within the survey zone, excitation of the pulses, registering signals, measuring the potentials difference and the spatial derivatives of the signals during the pulses and the pauses, recording data, analyzing the data with accounting the fields behavior in time and in space simultaneously, determining the environment resistivity and environment polarizability based on a predetermined mathematical model, and compiling the depo

Abstract: The invention relates to closed-circuit tunnels used for aerodynamic researches, sportsmen-parachutists training and other purposes. The inventive closed-circuit tunnel comprises a confuser, a working area, a diffuser, one or several return channels, a blower unit and turning bends having different flow deflection angle, wherein the bend having the smaller flow deflection angle is placed in a high-speed flow cross-section, whereas the bend having the greater flow deflection angle is arranged in a low flow speed cross-section. In a preferred embodiment, the tunnel comprises a first turning bend containing one turning gut for turning the airflow at 60 degrees, a second turning bend containing two turning guts for turning the airflow at 120 degrees, and a third turning bend containing three turning guts for turning the airflow at 180 degrees. The invention makes it possible to reduce air pressure losses, the drive power and a specific amount of metal per structure.