Abstract: A cryogenic sorption pump including a pumping element complete with a vessel for a lower temperature cryogenic agent, a radiation screen encompassing the pumping element, a pipe, and a heat bridge. The radiation screen incorporates a vessel for a higher temperature cryogenic agent, a shell having its lower end connected to said vessel and its upper end, to the pump housing, and a chevron screen. The heat bridge is installed between the shell and the pumping element and has its upper end connected to the shell and its lower end to the vessel of the pumping element. The pipe passes within the space defined by the inner walls of the vessels and has its lower end connected to the bottom of the housing and its upper end to the vessel of the pumping element.

Abstract: In a compression-distraction apparatus for osteosynthesis, including at least two supporting units (1), each incorporating at least two fixing pins (3) fitted in pin holders (2) which are made as a bolt (4) carrying plates (8) having open slots (10) for the pins (3) to fit and a set of spacer shims (9) and are fitted on a threaded rod (6) with a possibility of moving lengthwise its axis, according to the invention, the bolt (4) of the pin holder (2) has an axial hole (5) through which the main threaded rod (6) is free to pass, and the plates (8) and the spacer shims (9) are shaped as washers set on the bolt (4), the open slots (10) for the pins (3) to fit are made on the end surfaces of the plates (8) and pass along the chord of their circumference on the far side of hole (12) in the washer, and the pins (3) are curved and locked in place in the pin holder (2) in a criss-cross manner.

Abstract: In a distraction apparatus for osteosynthesis of short tubular bones, including a support unit (1) made as a cramp-shaped plate (3) having a plurality of perforations (4), two fixing pins (10) being secured between the arms of the cramp-shaped plate (3); distraction units (2) incorporating a pin holder (18) and at least two distraction pins (19) installed therein, a distraction threaded rods (15) whose proximal ends are connected to the support unit (1), according to the invention, the fixing pins (10) of the support unit (1) are arranged parallel to each other and lie in a plane square with the planes of the cramp-shaped plate (3), and each of the distraction units (2) is installed on one distraction rod (15) with a possibility of relative motion along its longitudinal axis, while each of the distraction threaded rods (15) is located on the cramp-shaped plate (3) with a possibility of angular motion and the distraction pins (19) of each distraction unit (2) are cantileverly fixed in the pin holder (18).

Abstract: A centrifugal mill having a feeder secured on a housing, the working surface of which has ribs and which accommodates a separator mounted on a shaft and arranged coaxially inside the housing to define an annular clearance with the working surface of the housing and having a cavity and a plurality of through holes in a side wall and balls placed in the cavity of the separator, some of the balls interacting during rotation of the separator with the ribs of the housing via the through holes in the side wall of the separator, the cavity of the separator accommodating a baffle defining with the separator an annular clearance of between 0.1 and 1.0 times the diameter of the ball, the annular clearance between the separator and working surface of the housing amounting to between 0.1 and 0.5 times the diameter of the ball, whereas the through holes in the separator have the form of slots.

Abstract: The method of well construction includes the steps of drilling the rock and consolidating it with a conductor casing, a surface casing string and a flow string, and isolating the troublesome zones of the well with profile pipes being reamed in the course of their setting. The reaming of the profile pipes is effected by building up a pressure drop across them and subsequently expanding them. The drilling of the rock after the casing-in of the well with the conductor casing and the surface casing string is preformed with a bit of one and the same diameter, with the troublesome zones being reamed to a diameter equalling the outer diameter of the reamed profile pipes which are successively set in all the troublesome zones of the well as they are exposed by the drilling.

Abstract: The cryogenic condensation pump comprises a housing (3), accommodating a vessel (3) for a cryoagent, namely liquid nitrogen, a shell heat line and a chevron baffle which make up a radiation shield, and a pump-out element. The cryoagent vessel and pump-out element are provided with suspension pipes. Each of the suspension pipes is provided with assemblies, for joining it to the housing, and assemblies for joining it to the cryoagent vessel and the pump-out element.The suspension pipe of the pump-out element is provided with a support bush, and in the cover of the cryoagent vessel an annular element is secured which makes contact with the support bush. The pump housing, radiation shield and pump-out element are made of metals having low specific weight.

Abstract: A method of preageing vacuum devices comprises discharging, through the gap between the electrodes (14, 15) of a vacuum device (16) upon breakdown of said gap, an open long-line length (4) precharged to a voltage lower than the breakdown voltage and disconnected after breakdown in a time interval determined by the parameters of the long-time length (4).An apparatus for preageing vacuum devices comprises terminals (1, 2) to connect a vacuum device (16) thereto, a breakdown voltage power supply (3) connected to the terminals (1, 2) also connected to which, through a diode (8), is an open long-line length (4) coupled with a charge voltage power supply (5). The long-line length (4) is discharged through the interelectrode gap of a vacuum device (16), upon breakdown of the gap, during a time interval equal to twice the time of propagation of an electromagnetic wave along the long-line length (4), after which the voltage across the latter changes its sign, causing a cuttoff state of the diode (8).

Abstract: The centrifuge has a drive rotating a rotor whose position relative to the vertical axis of the centrifuge is monitored by an unbalance sensor located on the installation plate which is accommodated in a recess of the ring in a plane perpendicular to the vertical axis. The ring is installed on the mounting surface of the drive casing with a provision for being moved and set relative to said surface so that the plane of the ring is constantly parallel with the lower surface of the rotor. The installation plate has a hollow for accommodating the unbalance sensor, the shape of the surface of said hollow being mutually complementary with the shape of the mounting surface of the drive casing and the installation plate is located in said ring with a provision for moving in said plane perpendicular to the vertical axis.

Abstract: An apparatus for separating immiscible liquids of various density is disclosed, comprising a plurality of pan-shaped elements, wherein all walls (6, 7, 8, 9) of each pan-shaped element (5) are inclined outwards. The pan-shaped elements (5) are arranged so that the distance (h) between bases (10) of the adjacent pan-shaped elements (5) is less than the height of their walls (6, 7, 8, 9). Each arrangement for evacuating one of the phases is fashioned as a substantially vertical passage (16) having an inlet (17) flow area greater than the outlet (18) flow area. The passage (16) is arranged so that the walls (20) thereof extend through the base (10) of the pan-shaped elements (5). The outlet (18) of the passage (16) is spaced from the base (10) of the pan-shaped element (5) at a distance greater than the inlet (17) of this passage (16). The passage (16) is provided with a flow control member (19).

Abstract: In a casing of an air heater-cooler there is mounted an additional partition between the wall of the casing and a main partition to form a section for the passage of a heat transfer agent being utilized. Heat transfer elements are provided with finned inserts freely fitted on the surface of the heat transfer elements in the above section and in a section, for the passage of the flow of air being humidified, a capillary porous lining is made at the surface of the inserts.

Abstract: The method consists in that molten metal and slag are obtained in a reservoir and then are poured into a mold and kept there till crystallization of the metal takes place and a shaped casting is produced. Prior to the process of pouring, the mold is moved towards the reservoir so that their upper end faces adjoin each other to form a closed integrated unit, which is turned in a vertical plane to transfer the metal and slag into the mold. The joint of the mold with the reservoir in the process of pouring is tightened by providing a time delay for this process from the moment of covering the joint with a slag layer till the moment of solidification of this layer. In the device for producing the castings, the mold and reservoir are provided with individual drives rotating them in a vertical plane, the drives moving the mold to form a closed integrated unit with the reservoir and rotating this unit in the process of pouring the molten metal and slag into the mold.

Abstract: The correlational gas analyzer comprises a light source passed through the gas under study, which features a quasiperiodic pattern of the specified spectral band, and an optical system with sequentially positioned along the optical path condensor, input slit iris, dispersing means to decomposed the specified spectral band of the gas under study, and rotatably mounted output slit iris configures as a disc with a plurality of slits, uniformly distributed along its circumference and equidistant from the disc center. The spacing between the centers of adjacent slits is approximately equal to the scan length of the specified spectral band of the gas under study. The output slit iris scans the specified spectral band of the gas under study across a photoreceiver, the output signal whereof drives two electric signal amplifiers.

Abstract: An implement of an excavating machine comprises a frame mounted on a boom of the machine. Secured pivotably to the frame at a common pivot are a spring-loaded knife and a bucket. A stop element is provided in the travel path of the knife to restrict its downward movement. A system for controlling the bucket acts to set the bucket to open and closed positions, in the open position of the bucket its back portion bearing on the knife which engages with the stop element, whereas in the closed position a lip of the bucket engages with a blade of the knife.

Abstract: A correlational gas analyzer, comprising a light source with the light beam passed through the gas under study with a quasiperiodic pattern of the spectral band, and an optical system with sequentially positioned along the light beam condensor, input slit iris, beam dispering element and rotatably mounted output slit iris configured as a disc with a slit shaped as an Archimedes spiral. The Archimedes spiral center is coincident with the disc center and its pitch is approximately equal to the scan length of the specified spectral band of the gas under study. The output slit iris scans the specified spectral band of the gas under study across a photoreceiver, the outputs whereof drive the inputs of a first and second electric signal amplifier, with the outputs thereof connected to connected in series corrector unit and recorder.

Abstract: A light signalling anti-phantom device includes a collimator with a reflector (2), a light source (1) disposed in the focal point (F) of the collimator, and an absorber (3) of light. The reflector (2) and absorber (3) are arranged so that any focal ray (4) directed in opposition to the focal ray (5) incident on the reflector (2) falls on the absorber (3). The reflector (2) may be a mirror or catadioptric rings (23) exhibiting total internal reflection. This design eliminates false external illumination signals and makes light signals more contrast during daytime.

Abstract: A video information system includes a screen (1) having at least two cells (2-5, 14-16) rotatable in at least one direction and forming a three-dimensional multi-plane screen system changeable in space. Information from at least one projector is fed to two or more cells (2-5). Video information is presented in an in-depth three-dimensionally unfolding space. The system also has the capability of producing simultaneous changes in time, and the screen system can be efficiently combined with scenery attributes. The video information can be fed to the cells of the screen in the form of front or rear projection.

Abstract: A centrifuge includes a drive which revolves a rotor whose speed is controlled by a sensor located on a mounting plate which is immovably fixed in a recess of a ring installed on the mounting surface of the drive casing. The ring has a hole accommodating a movable element installed with a provision for touching over the radius of curvature upon said mounting surface of the drive casing and ensuring the movement of said ring relative to the lower surface of the rotor for installing the sensor at a certain distance from said surface at which the optimum sensitivity to the rotation speed of the rotor is ensured.

Abstract: A piezoelectric motor comprises includes a stator (1) and a rotor (3). The stator (1) has a housing (7), a piezoelectric oscillator (6) generating radial mode vibrations and mounted on the housing (7), said oscillator including a piezoelectric cell (9) with electrodes (13) and at least two pushers (10). Each pusher (10) has one end secured to at least one flat surface of the piezoelectric cell (9) so that a gap (14) is provided between the piezoelectric cell (9) and the pusher (10). The other end of each pusher (10) rests against the rotor (3).

Abstract: The method of controlling a mechanical hand includes releasing the head in its initial position, moving the hand to its target position and retaining the hand in its target position. With the hand moving towards its target position, the path of its travel is divided into a portion registering the parameters of its motion and a portion correcting the law of its motion. With the hand moving over the registering portion, a reference voltage is supplied to the drive motor, and the speed and running coordinate of the moving hand are measured and registered. With the hand moving over the correcting portion, its speed is measured, and the difference between the speeds measured at the two portions is computed to shape an additional voltage. A voltage is then fed to the drive motor, which is an algebraic sum of the reference voltage and additional voltage.

Abstract: A device for treatment of sexual impotence in human males comprises parallel rods movably interconnected with a possibility of pivoting around their axes, each of the rods being connected to one of the ends of arcuate members which form a glans penis retainer shaped as curved plates, a control retainer and a penile base retainer. The free ends of the arcuate members of the penile base retainer are interconnected through an elastic member provided with a mechanism for reversible adjustment of the degree of its tension and having an eyelet made of the same material as the elastic member.