Abstract: A method consists in introducing a flexible sleeve (4) into a pipeline (2), advancing the sleeve through the pipeline (2) and urging it against the internal surface of the pipeline (2) by building up excessive pressure in the space defined by the pipeline (2) and the sleeve (4), the latter having its end turned inside out and secured to the internal surface of the pipeline (2). To join the sleeve (4) to the pipeline (2) and provide a protective coating on the internal surface of the pipeline (2), the latter is heated from inside.An apparatus for performing the method includes a system (1) for supplying a working fluid into the pipeline (2), a system for introducing a flexible sleeve (4) into the pipeline (2), means for heating the pipeline (2) and a system for timing the motion of the sleeve (4) and of the heating means.

Abstract: A device for making springs from wire comprises two driven mandrels located arallel to each other and adapted for winding springs from wire and a carriage feeding wire onto each of these mandrels alternatively while reciprocating along the ways from one extreme position to the other, and backwards.

Abstract: The disclosed process includes the steps of and upsetting the flashing parts being welded. The flashing is conducted with concurrent measurement of useful electric power and an electric parameter of the flashing process which is related to the power by a function which maximizes the useful power at a predetermined value of said electric parameter. Then the value and sign of the power and parameter increments are determined within one and the same period of time. The parts are brought closer together up to the moment when the ratio of the power and parameter increments reverses ints sign. Then the parts begin to be separated up to the moment when the value of said ratio reaches the preset value selected to suit the welding circuit resistance and the cross sectional area of the welded parts.

Abstract: A kit assembly for transforming a container into a kaleidoscope consisting of a hand supportable container which has an open first end and a second end having a viewing hole. A reflecting means is inserted into the container between the first end and the viewing hole. A picture or decal adhered to a rotatable means is placed over the first end of the container and is viewed through the viewing hole and the reflecting means. An image of the picture is defined by a reflecting surface of the reflecting means at the viewing hole so that, when the rotatable means is turned, a viewer sees a varying composite image of the picture.

Abstract: A separator-disintegrator includes a casing accommodating a rotor, a rotor drive, a pipe to charge material to be separated and pipes to discharge fine and coarse fractions of material. The rotor is embraced by an annular chamber installed in the casing and facing the rotor with its open portion. An inner space of the chamber makes up a material separation zone. Side walls of the chamber have openings to communicate the chamber with the pipe to discharge fine fraction of material. The pipe to discharge coarse fraction of material, which communicates with the chamber, has a damper mounted for longitudinal movement.

Abstract: A flash-butt resistance welding process including a flashing of parts being welded and their upsetting. The direction of speed of motion of the parts during flashing is changed by converging and diverging them. The parts being welded are converged up to the moment when the total resistance of elementary contacts arising between the flashed surfaces of the parts becomes equal to 0.4-0.5 of the short-circuit impedance of the welding machine. Then the parts are diverged up to the moment when the summary resistance of elementary contacts reaches 1.4-1.6 of the short-circuit impedance of the welding machine.

Abstract: An apparatus for central electroanalgesia comprises units for rhythmic action, which are connected in series with units for changing the shape of current pulses and preamplification units electrically coupled to a regulator of the amplitude of current pulses, a means for selecting a mode of action, a means for programmed limitation of the current average value, and a means for amplifying the output signal, which is connected, via a means for measuring the current average value, to electrodes secured on the patient's neck below the mastoid processes and on his forehead. The output signal amplifying means is connected to a compensation current limiting unit couple to a constant component compensating unit joined to a compensation current regulator.

Abstract: An electrode tool for electroerosive drilling of holes in workpieces includes a central electrode fabricated from an electroconductive material and disposed in a shell with a gap. The central electrode projects from a working end of the shell toward the workpiece, the projecting portion of the central electrode being bent at an angle .alpha., the end of the bent portion being spaced from the side surface of the shell. A method for electroerosive drilling of holes having variable transverse and longitudinal sections in terms of hole depth, this method also being capable of producing holes with reverse angles and obtaining round shaped configurations of holes.

Abstract: A computer-assisted ticketing device, such as for garages, provides the necessary functions to allow check in and check out, computing the price, printing tickets, displaying appropriate information on a monitor and producing selected reports. The input to the system is produced by the reading of ticket information from specially designed tickets imprinted with bar code data. Additional information is entered into the system by reading bar code data representing, for example, the make of the vehicle, its color, the pricing schedule, etc. All the information is checked for validity and stored in the system's memory, including the time of day and date. System passwords may be used to prevent unauthorized access to the stored information or the unauthorized printing of reports.

Abstract: An electromagnetic power drive for a friction welding machine, comprising a magnetic core installed immovably, which carries a power coil connected to a voltage regulator made as a switch and at least one pickup coil connected to an integrator producing voltage proportional to the actual value of the magnetic flux during friction welding, which is connected to a comparison means comprising two comparators, a driving input of one of said comparators receives voltage proportional to the assigned value of the magnetic flux during friction welding, the driving input of the other comparator receives voltage proportional to the other assigned value of the magnetic flux, and a control signal generator having a hysteresis-loop output characteristic, which is connected to the comparators, the output of said generator being the output of the comparison means electrically coupled with the voltage regulator.

Abstract: A method of friction welding wherein the parts to be welded, of materials with inherent Young's moduli, are jigged coaxially, set to rotate with respect to each other under an axial pressure recurrently varying with a frequency which is in inverse proportion to the lower value of the Young's moduli and to the diameter--or to the smaller diameter--of the parts while these are being heated up for welding, whereby, the value of the frequency varies over a range between + and -15% and the parts are then upset-forged together.

Abstract: Disclosed is a method of producing crack arrester consisting in that a hollow cylindrical blank (1) with a multi-layer wall and a discontinuity (2) provided at least in one of the layers is made so that the diameter and wall thickness thereof are smaller and greater, respectively, than the specified final dimensions of the crack arrester (5) and the blank (1) is then heated and rolled on a ring-rolling mill (4) uniformly over the entire length to the final dimensions of the crack arrester (5) so that the layers fuse to each other in the course of rolling.

Abstract: A magnetic suspension for a vehicle, includes a guide rail vertically mounted on a track and an underframe having a magnetic system surrounding lateral sides of the guide rail on which are mounted strips of permanent magnets. The magnetic system of the underframe also comprises strips of permanent magnets installed on the lateral sides of the underframe facing toward the guide rail, the strips of permanent magnets being installed with a spacing equal to the spacing of the strips of the guide rail, and the polarities of pole facets of the strips facing toward one another being different.

Abstract: A shampoo cape includes a splash guard or capelette which bridges the cape shoulder portions, when the cape is placed on the user, and is received within the sink in which the hair is to be washed or shampooed to deflect water from the hair into the sink and prevent water from impinging on the cape, the user's clothes and chair.

Abstract: A reversible air-operated percussive action machine for driving holes in the ground has a housing accommodating a hammer 2 capable of reciprocating therein. An air distributor 3 is arranged in the hammer 2 in the form of a fixed tube 12 and a valving member 13 movable relative to the tube. Defined between the tube 12 and valviong member 13 is an accumulating chamber 18 which communicates with an air feeding line 4. An air restrictor is further provided for discharging air from the accumulating chamber 18 when the supply of compressed air to the air feeding line is terminated. The valving member 13 spring-loaded relative to the tube 12 by a spring arranged so that during feeding compressed air to the accumulating chamber 18 the valving member 13 is acted upon by a pressure force directed counter to the action of the spring.

Abstract: A holographic recording device includes an acoustical and vibration protection package having, mounted in an enclosure, at least three spaced apart supporting elements, a means for producing reference and object beams being secured to the supporting elements, while a coherent source is rigidly secured to at least two supporting elements. Supporting elements are rigidly secured to at least two rods and a screen set perpendicular to said supporting elements. A holographic recorder is positioned after the means for producing reference and object beams in the path of the source beam.

Abstract: A three-dimensional model of molecular structure comprises plastic modules and their connecting elements which are made as cylindrical rods whose entire surface, as well as the mating surface of sockets of the modules, is provided with easily curved projections alternating with depressions of the same shape. To assemble or disassemble said three-dimensional model use is made of a device, whose jaws each have a wider portion to hold the module and are bent, and the inner surface of the jaws being provided with wedge-like projections to facilitate disassembly of the modules.

Abstract: A method of assembling a cylindrical storage battery includes the step of mounting a block of electrodes in the body of the cylindrical storage battery, and the lid thereof with a gasket is installed on the body of the cylindrical storage battery. Thereupon, the edge of the body of the cylindrical storage battery is rolled-in through the gasket to the storage battery lid, the cylindrical storage battery is filled with a measured quantity of electrolyte, the cylindrical storage battery is electrically charged and discharged and a valve is installed in the lid of the cylindrical storage battery.

Abstract: An autonomous inverter includes a three-phase thyristor bridge (7), a diode bridge (14), commutating capacitors (15), and communicating thyristors (16 and 17). AC leads of the thyristor bridge (7) are connected, via the commutating capacitors (15), to respective leads of the diode bridge (14). DC leads of the diode bridge (14) are connected to the like leads of the thyristor bridge (7) via the commutating thyristors (16 and 17). A master oscillator (24) of the autonomous inverter has the output thereof connected to a first input of a distributing unit (23). The autonomous inverter is also provided with two voltage dividers (18), the first arms of each divider (18) comprising three star-connected resistors (19), while the second arms thereof comprise resistors (20) inserted between the neutral points of the stars and the ground. Outputs of the voltage dividers (18) are connected to inverting and non-inverting inputs of a differential amplifier (21).

Abstract: A method for repairing a pipeline includes the steps of cleaning the pipeline (1) from deposits concurrently with laying therein a flexible line (4) which is used for drawing into the pipeline (1) a traction cable (5) and energy and mortar supply lines (6 and 7) connected to a coating application device (10). In an apparatus for carrying out the method, a flexible line supply device (8) is mounted on a cleaning device (3), behind the cutting tool (9) thereof, and includes a chamber (12) which is open at the end thereof, and houses a horizontally mounted reel with flexible line (4) and a rotatable member (14) for unwinding the flexible line (4) from the reel (13).