Abstract: An apparatus for separation of ferromagnetic materials has a working chamber occupied by a ferromagnetic attachment in the form of plates with openings edged by shaped projections, a magnetizing system and means for consolidation of the plates made in the form of an additional magnetic field source, and inlet and outlet connections, respectively, for fluid medium. The spacing of the openings on the plate, their sizes and configuration, the sizes of the projections and the distance between the plates are selected to be variable throughout the volume of the working chamber depending on the magnetic properties and sizes (dispersity) of foreign particles in the fluid medium being purified, and viscosity of the fluid medium.

Abstract: A gas-jet ejector has an inlet chamber designed to be connected to an evacuated space, a mixing chamber and a diffuser communicating with a vacuum pump which are all series-arranged in a direction coinciding with the direction of gas flow and in alignment with each other inside a housing. A Laval nozzle connected to the surroundings is contained inside the inlet chamber in alignment therewith. The geometry of the critical section of the Laval nozzle, its outflow section and the inlet and outlet sections of the mixing chamber is conducive to increasing the volumetric flow rate across the outlet section of the diffuser 1.35 to 1.80 times.

Abstract: The arrangement for patching off troublesome zones in a well has a string of profile pipes with cylindrical portions at their ends, and a device for setting the string of profile pipes in a well, mounted for longitudinal reciprocation inside the string of profile pipes.Said device includes a reamer of the cylindrical portions of the profile pipes, positioned inside the uppermost cylindrical portion of the string of profile pipes, rigidly connected with an expander positioned above the string of profile pipes and having a housing with expanding elements mounted thereon.

Abstract: The invention consists of a method for absorbing nitrogen oxide and carbon monoxide from tobacco smoke. It includes a base made of acetate, cellulose and acetate-cellulose fibers. The base is impregnated with an absorbing agent, and the absorbing agent may include a complex compound of ferrous iron and thiol-containing low-molecular ligands. A method for impregnating the base of the filter with the absorbing agent comprises immersing the base in an aqueous suspension of a complex compound of ferrous iron and thiol-containing low-molecular ligands and then drying it; or, treating the base with an aqueous solution of a thiol-containing low-molecular ligand, treating the resulting compound with an aqueous solution of ferrous salts and then drying the resulting compound. A composition for absorbing nitrogen oxide and carbon monoxide from smoke comprises a complex compound of ferrous iron and thiol-containing low-molecular ligands.

Abstract: A quick disconnect coupling for an access valve is disclosed which includes a housing having an independently displaced depressor mounted within the housing, a sliding sleeve mounted on one end of the housing, ball bearings retained in the housing between ball bearing cavities and the sliding sleeve, and locking means preventing the removal of the quick disconnect coupling from the access valve unless the depressor is withdrawn to seal off flow from both the valve and the quick disconnect coupling. The quick disconnect coupling can thus be attached to a valve without establishing communication therethrough or through the quick disconnect coupling until the depressor mounted within the housing is independently moved into contact with the core of the access valve.

Abstract: An apparatus for separating ferromagnetic materials from fluid media has a working passage divided by a partition into sections filled with an insert of ferromagnetic material. A magnetizing system is arranged coaxially with the working passage. An arrangement for imparting reciprocations to the magnetizing system is fashioned as at least two electromagnetic coils with one such coil at the opposite ends of the passage, parameters of the coils being such as to ensure movement of the magnetizing system between two extreme positions.

Abstract: A hoisting mechanism comprises a pole (1) with weight and build-up branches (2, 3) and carrying elements (4) in these branches (2, 3) and a mechanism (6) for moving the carrying elements (4) in the branches (2, 3) from one such branch to the other. The mechanism (6) includes a hydraulic cylinder (8) with two pins (12, 13), two pairs of pivotable stops (17, 18), a guide (30), and two pushers. Axes (19) of oscillation of the stops (17, 18) are positioned in their centers of gravity, whereas the guide (30) has the form of an oval cup (31) secured to a housing (7) of the mechanism (6), has a slot (33) in a bottom (32) and holes (37) in the side wall to receive the pushers.

Abstract: A shield unit has a cylindrical shell made up of two sections arranged in succession one after the other, that is, a head section and a tail section which are connected by a traversing mechanism. The mechanism is a differential planetary gear train kinematically associated with a mechanism for moving the tail section and a rock discharge mechanism. The head section is provided with a cutting tool and has a helical surface. The tail section is provided with a device preventing rotation of the tool section in rock.

Abstract: The invention relates to technology and equipment for arc welding.A method of overhead submerged arc welding consists in that flux at the wing site is pressure-fed to the joint being welded from below at different pressures along the joint being welded, a consumable electrode (3) is fed through the flux (3) from below and an arc is struck. A weldpool is formed thereat with a layer of liquid slag.

Abstract: A multi-purpose poultry roaster and baking rack which has a drip pan, and an assembly of wires which forms a plurality of upwardly directed generally vertically oriented skewers positioned about the periphery of the interior surface of the drip pan, and a centrally located upstanding prong formed of the middle portions of the wire assembly, so that poultry or other similar foods can be roated on the inner prong, while potatoes, or apples, or other similar items can be baked on the skewers located about the periphery of the interior surface of the drip pan. The wire assembly is held together by interlocking notch and apex portions of the wire, and held to the drip pan by additional wires affixed to the assembly of wires, and curved to align with holes located about the periphery of the drip pan.

Abstract: In a distraction apparatus for plastic reconstruction of hand, having a proximal support made as a cramp-shaped plate carrying two fixing pins, a distal support carrying distraction pins, and two distraction threaded rods on which the proximal support and the distal support are fitted, according to the invention, the fixing pins are arranged in a plane square with the planes of the cramp-shaped plate, while the distal support is made as a bar having perforations, wherein additional distraction threaded rods are fitted, the distraction pins being held with their distal ends to the proximal ends of the additional distraction threaded rods.

Abstract: A hydraulic drilling machine has a drilling tool connected to a hydraulic motor, a hydraulic percussive mechanism connected through a rotatable fluid distributor to pressure and discharge lines, and a flow governor made up of a non-return valve and a flow throttling valve connected in parallel. The inlet of the flow governor is connected to a discharge line of the hydraulic motor, whereas its outlet is connected to a discharge line of the hydraulic percussive mechanism in the form of a hydraulic reaction turbine.

Abstract: An apparatus for electrochemical machining has a bath for machining workpieces capable of providing in the zone of treatment an ascending laminar flow of electrolyte occupying the bath. A bath for cleaning the electrolyte communicates with the bath for machining the workpieces by way of a pipe for feeding the electrolyte having a pump and pipe for discharging the electrolyte. The workpieces are conveyed to the bath by workpiece gripping mechanisms.

Abstract: In an electric battery with an aqueous electrolyte, a separator matrix includes three layers with a hydrogen/oxygen recombination catalyst inserted into the middle layer.

Abstract: A method of manufacturing filters by laser treatment, wherein working is done by a laser beam and a jet of working gas. An absorbing coating is applied to a surface to be worked. The laser beam is focused to form a focal spot within a work piece at a depth h.sub.1 from its surface with0.025.ltoreq.h.sub.1 /h<0.22where h is the thickness of the work piece.Abrasive particles are introduced in a pulsed periodic manner into said jet of working gas at the moment the variation amplitude of the volume of molten metal in a cutting cavity reaches a maximum value. A device for manufacturing filters has a laser, a nozzle with an optical laser focusing system, and a mechanism for controlling the yield of an absorbing coating.

Abstract: A method for measuring parameters of solid phase of slurries having the following steps: forming ultrasonic oscillations and emitting them into a fluid under study, forming the Lamb waves and directing them into a wall of a vessel containing the fluid under study, forming acoustic currents and radiation pressure of sonic radiation in the fluid under study, and measuring amplitude and length of pulses of ultrasonic oscillations that pass through the fluid under study and the Lamb waves that pass through a predetermined distance along the wall of the vessel containing the fluid under study without and with the action of the acoustic currents and radiation pressure of sonic radiation, the values of which are used for the assessment of concentration of solid phase of the fluid under study. An apparatus for carrying out the method has two measurement channels each having a logarithmic converter, a subtraction unit and a division unit.

Abstract: The invention relates to the field of water purification. A method for sening water by way of its electrochemical treatment involves causing water to pass in the form of two streams through anode and cathode chambers of a membrane electrolyzer. According to the invention, the water stream being fed to the anode chamber is preliminarily softened before supplying it to the anode chamber, and this stream is in the form of catholyte after the separation of precipitating hardness salts therefrom, anolyte being used as the end product. An electrolyzer for softening water has a casing divided by membranes into anode and cathode chambers, respectively.

Abstract: A turbomolecular vacuum pump has a hollow stator accommodating a rotor having bladed wheels with bladed disks interposed therebetween. Flat blades of each bladed wheel are spaced circumferentially at the surface of its hub and are inclined to planes perpendicular to the axis of rotation of the rotor toward the side of its rotation. Each blade is disposed so that lines of intersection of its planes with the planes perpendicular to the axis of rotation of the rotor are at an angle to the radii of the wheel hub at a point of intersection of these lines with hub circles, and are directed with respect to the bladed wheel at the gas pressure side to the direction of rotation of the rotor, and with respect to the bladed wheel at the gas suction side to a side opposite to the direction of rotation of the rotor.

Abstract: A crushing device includes a casing with an inner wall, a rotor having a vertical axis of rotation, mounted in the casing and formed by a disk having a working surface with radially arranged fractionating blades mounted thereon and each including a working lateral face and a lateral face opposite to said working lateral face and each consisting of a main portion rigidly secured relative to the rotor disk and located nearer to the rotor axis and a peripheral portion pivoted to the rotor disk, rotatably mounted about the vertical axis, and having a section radially extending beyond said disk, and stationary grinding elements placed on the inner wall of the casing and arranged coaxially with the rotor disk.

Abstract: A vacuum cleaner bag is described which has a sealing closure device for an inlet opening in a collar of the vacuum cleaner bag. A disc, partially die-cut out of the collar or a separate disc attached to the collar is arranged for hinged movements between a covering position wherein the inlet opening is effectively closed and sealed and and uncovering position wherein the inlet opening is accessible for passage of an inlet fitting of a vacuum cleaner. A locking mechanism is provided for positively locking the hinged cover to disc in its covering position to prevent inadvertent escape of debris from a filled vacuum cleaner bag after removal from the vacuum cleaner. The locking mechanism may consist of a projecting finger on the disc or cover which is forced beyond the inlet opening and snaps behind the collar, or the projecting finger may be secured with any suitable fastener, such as hook and loop tape.