baber/WOPTO huggingface dataset:
Patent NL-1027974-C1 (NL)
Title: Geothermal power system, has agent with very low boiling point like air, nitrogen, methane, oxygen, pumped under pressure and below critical temperature into low grade geothermal area
Inventor: CROUGHS ERWIN JOHAN
IPC: B60K7/00
Filed: 2005-01-07
Granted: 2006-07-10
Abstract: The system has a generator and a heat exchanger (10). An agent with very low boiling point like air, nitrogen, methane, oxygen, is pumped under pressure and below a critical temperature into a low grade geothermal area. The low grade geothermal area holds gas at a pressure similar to the gas in natural oil and gas wells. Electricity is generated based upon retrieval of the agent.
Patent RU-2000789-C1 (RU)
Inventor: PETROV REM V
IPC: A61K35/28
Filed: 1981-10-13
Granted: 1993-10-15
Abstract: Использование: в медицине, а именно в различных  област х клинической медицины и при проведении  исследовательских работ. Сущность:  обезболивающее средство представл ет собой гуморальный  фактор костного мозга - смесь низкомолекул рных  веществ пептидной природы Положительный  эффект: сокращаютс  сроки лечени  и  реабилитаци  больных за счет получени  обезболивающего  эффекта с одновременной стимул цией  защитных сил организма в виде повышени  анти-  те лопродукции. 1 табл.
Patent RU-2020151-C1 (RU)
Inventor: EDENS LIPPO
IPC: C12C5/02
Filed: 1988-08-24
Granted: 1994-09-30
Abstract: Использование: биотехнология, пищевая промышленность, касается предотвращения окисления пива и поддержания его качества во время хранения. Сущность изобретения: в пиво, разлитое в емкость, в качестве удаляющего кислород вещества помещают высушенные дрожжи Saccharomyces cerevisiae, иммобилизованные в слое полимера, или парафина, или воска. Причем толщина слоя иммобилизованных дрожжей составляет 0,1 - 500 мкм. Емкость с пивом и иммобилизованными дрожжами пастеризуют до момента соприкосновения дрожжей с пивом. Результаты показывают, что время хранения пива может быть продлено по меньшей мере на два месяца. 5 табл.
Patent RU-2080672-C1 (RU)
Title: Ship emergency cable
Inventor: KATANOVICH ANDREJ A
IPC: H01B7/00
Filed: 1990-01-30
Granted: 1997-05-27
Abstract: FIELD: cable emergency communication lines on ships. SUBSTANCE: current-carrying conductors of cable have core made of three steel wires twisted with spacing 5.0-5.5 and insulation manufactured from sealed fluoroplastic. Protective covers has cushion for armoring in the form of braiding produced from heat-resistant fibrous material. Armoring is fabricated from low-alloyed manganese steel with mean content of carbon. EFFECT: enhanced mechanism strength and heat resistance which ensure cable reliability in usage. 1 dwg
Patent RU-2114579-C1 (RU)
Inventor: DEHVID L DZHIBSON
IPC: A61F2/16
Filed: 1989-07-07
Granted: 1998-07-10
Abstract: Изобретение относится к медицине и касается имплантации протезирующих устройств. Цель - введение протеза под эпителиальную ткань. Протез для субэпителиальной имплантации содержит покрытие из сшитого или несшитого фибронектина его биологически активного компонента или аналога, при этом поверхность протеза состоит из коллагена или сополимера коллагена, способных связывать фибронектин, или из синтетического полимерного материала, обработанного поли-L-лизином и сшивающим агентом. 3 ил.
Patent RU-2028890-C1 (RU)
Title: Cutter
Inventor: NAGAJTSEV VLADIMIR F
IPC: B23K9/00
Filed: 1989-07-06
Granted: 1995-02-20
Abstract: FIELD: mechanical engineering. SUBSTANCE: tool has a casing with a cutting plate secured according to the central hole with a nut bush and screw. The casing is made cylindrical and is rigidly connected with a holder. EFFECT: simpler design. 1 dwg
Patent RU-2069548-C1 (RU)
Title: Fitting element and endoprosthesis of joint
Inventor: BRANEMARK PER-INGVAR
IPC: A61F2/42
Filed: 1990-04-24
Granted: 1996-11-27
Abstract: FIELD: medicine; medical equipment. SUBSTANCE: endoprosthesis of joint has connecting unit tied with fitting member. The latter is hollow and symmetrical relating the axis. The fitting member is made of material being compatible with osseous tissue and has external thread. The fitting member is made for deformation of titanium. Surface of the fitting member has microscopic unevenness with diameter of 10-300 mcm. Holes with cutting edges are made onto the surface of fitting member. The fitting member has open entrance end. Thickness of the member's wall reduces gradually at the direction to its entrance end. There are longitudinal hollows with cutting edges at the area of entrance end. One end of the member expands gradually and is mounted in guide bushing being free of rotation. EFFECT: improved reliability. 13 cl, 10 dwg
Patent RU-2030521-C1 (RU)
Inventor: KOCHETKOV VLADIMIR P
IPC: E02F9/20
Filed: 1990-03-20
Granted: 1995-03-10
Abstract: Изобретение относится к приводам горных машин. Сущность изобретения заключается в том, что оно содержит командоаппарат 1, сумматор 2, тиристорный преобразователь 3, первый нелинейный элемент 30, пороговый датчик тока 31, регулятор 15, датчик скорости 13 и датчик упругого элемента, второй нелинейный элемент 16 и коммутирующий ключ 17. 1 з.п.ф-лы, 1 ил.
Patent RU-2053579-C1 (RU)
Inventor: SERDYUKOV IGOR V
IPC: H01C10/26
Filed: 1990-04-03
Granted: 1996-01-27
Abstract: FIELD: measurement technology. SUBSTANCE: known low-value precision wire-wound resistor that has spiral-type wire-wound resistance unit placed inside insulating case with current-carrying rims on its ends in the form of tubular members accommodating metal rods held tight by means of flexible members against inner surfaces of tubular contact has its resistance unit made of metal wire whose ends are clamped in tubular contact; one of wire ends is soldered to one of tubular contacts and other is located and clamped between metal rod and inner surface of other contact for extension of resistance unit. EFFECT: improved design. 3 dwg
Patent RU-2033097-C1 (RU)
Title: Method for regeneration of menstrual cycle at descending ovariocelle
Inventor: BOCHORISHVILI GEORGIJ GEORGIEV
IPC: A61B17/42
Filed: 1990-08-14
Granted: 1995-04-20
Abstract: FIELD: endocrinology. SUBSTANCE: X-ray endovascular occlusion of testicular vein is carried out, venous pressure in renal vein being not more 12 mm Hg. EFFECT: improves efficiency of the method.
Patent RU-2080801-C1 (RU)
Title: Method for clarifying raw juice from grape, berry and other fruits, vegetables or seeds, and installation for its realization
Inventor: VALTER GRESH
IPC: A23L2/72
Filed: 1990-05-15
Granted: 1997-06-10
Abstract: FIELD: canned industry for clarification of fruit juices. SUBSTANCE: raw juice is fed to clarification system by cooling cycle; separated haze or residue of filtration installation with transverse flow working by cooling cycle is fed to one more system of clarification working by heating cycle. Installation comprises clarification system of cooling cycle and installed after it, clarification system of heating cycle with units of filtration. Unit of filtration of both systems has at least one filtration device with transverse flow. EFFECT: high-quality juice with reduced expenditures. 17 cl, 3 dwg
Patent RU-2023039-C1 (RU)
Inventor: BOSHIN STANISLAV N
IPC: C22C9/04
Filed: 1991-02-01
Granted: 1994-11-15
Abstract: Изобретение относится к порошковой металлургии, в частности к спеченным латуням. Предложена спеченная латунь следующего состава, мас.%: цинк 20,0; железо 0,3 - 0,6; ванадий 0,2 - 0,4; медь - остальное. 1 табл.
Patent RU-2003634-C1 (RU)
Inventor: YAKERSON ISAAK B
IPC: B66C13/12
Filed: 1991-04-03
Granted: 1993-11-30
Abstract: Использование: в подъемных устройствах а  именно в устройствах дл  сматывани  и накатывани  кабел  Устройство содержит корпус ТО, жестко  св занный с барабаном 12 дл  наматывани  кабел   24. приводной вал 1. св занный с корпусом 10 собачками  7 и 17 и храповыми колесами одно из которых  9 - внутреннего, а другое 16 - наружного  зацеплени  жестко закрепленное на приводном валу  1. Корпус 10 установлен с возможностью вращени  вокруг вала 1. Устройство снабжено установленными  на валу 1 регулируемым тормозом 2, а  привод 21 снабжен регулируемым механизмом  крут щего момента дл  регулировани  усили  наматывани  кабел  24. Корпус 10 и вал 1 установлены  на самосто тельных опорах 4, 14. Храповое  колесо 9 жестко закреплено а корпусе 10. Привод  21 снабжен регулируемой муфтой 4 ил.
Patent RU-2005837-C1 (RU)
Inventor: ZEGE SERGEJ O
IPC: E01D1/00
Filed: 1991-04-19
Granted: 1994-01-15
Abstract: FIELD: bridge building. SUBSTANCE: bridge span structure comprises cover plate, movable supporting members, beam structure and prestressed tension bars with supporting devices which hold cover plate to beam structure. Span structure has ties arranged horizontally under beam structure while prestressed tension bars are set at an angle in planes intersecting the planes of main beams of the beam structure, and are connected to ties. Said ties may be made as a rod truss, polygonal closed supporting contour, a system of crisscrossing horizontal braces or horizontal flat members with supporting end projections arranged in planes parallel to axes of main beams. EFFECT: improved design. 5 cl, 8 dwg
Patent RU-2017075-C1 (RU)
Inventor: ASTSATRYAN SEREZHA A
IPC: G01F13/00
Filed: 1991-04-22
Granted: 1994-07-30
Abstract: Использование: в машиностроении. Сущность изобретения: в автоматическом сливном бачке, содержащем накопительную емкость, питающую трубку, датчик уровня и сливной клапан объединены в механизм сброса, содержащий подпружиненный шток, установленную в нем с возможностью осевого перемещения трубку, клапан с емкостью и сифоном, причем накопительная емкость, клапан и сифон связаны гидравлическими каналами, выполненными в трубке и клапане. 2 ил.
Patent RU-2017274-C1 (RU)
Title: Process of manufacture of high-temperature superconducting material
Inventor: SHNEJDER ALEKSANDR G
IPC: H01L39/24
Filed: 1991-04-24
Granted: 1994-07-30
Abstract: FIELD: making of superconducting materials. SUBSTANCE: mixture of Bi 2 O 3 , SrCO 3  and CuO corresponding to proportion 2:2:0:1 by cations of Bi, Sr, Ca, Cu as well as mixture of CaCO 3  and CuO corresponding to proportion 1:1 by cations of Ca and Cu are prepared. First mixture is sintered at temperature 800 C for 2 h and second mixture - at 1000 C for the course of 8 h in argon. Then after hardening in air both mixtures are mixed, ground and sintering is conducted at temperature 830-850 C in atmosphere of argon for 12-14 h followed by hardening in the air. EFFECT: improved operational characteristics.
Patent RU-2044134-C1 (RU)
Inventor: KLIMENKO MIKHAIL M
IPC: F01K13/00
Filed: 1991-05-07
Granted: 1995-09-20
Abstract: FIELD: heat-power engineering. SUBSTANCE: thermal unit has combustion engine 7 and oxidizer preparation unit 2 and fuel preparation and supply unit connected to combustion chamber by means of pipe lines. Thermal unit is also provided with steam generation system, flue gas heat recovery unit, smoke stack 9, heat exchanger 35 and sea water supply pump 42. Heat exchanger 35 has heating surface and heating chamber having inlet and two outlets in liquid and gas zones, respectively; inlet is brought in communication with hydrogen sulfide layer of sea water through suction pipe line. Outlet in liquid zone is brought in communication with layer of sea water whose content of hydrogen sulfide does not exceed its concentration in water discharged from heat exchanger. Connection is made with the aid of outlet pipe line. Outlet of gas zone is connected to pipe line 5 which connects the fuel preparation and supply system with combustion chamber 7. Heating surface is connected to steam generation system; sea water supply pump 42 is mounted in suction pipe line 37. EFFECT: enhanced reliability. 1 dwg
Patent RU-2010449-C1 (RU)
Title: Tv cameras
Inventor: BUZULUTSKIJ KONSTANTIN D
IPC: H04N5/225
Filed: 1991-05-12
Granted: 1994-03-30
Abstract: FIELD: TV engineering. SUBSTANCE: TV camera has sync generator, videosignal forming unit, memory unit, termination pulse former, background component compensating unit. EFFECT: improved contrast sensitivity of TV camera. 4 dwg, 2 tbl
Patent RU-2029057-C1 (RU)
Title: Core catcher
Inventor: NIKOLAEV VLADIMIR F
IPC: E21B25/14
Filed: 1991-05-24
Granted: 1995-02-20
Abstract: FIELD: drilling equipment. SUBSTANCE: core catcher has holder 2 with ports 1, toggle 3 with turning shafts. Toggle 3 has cutting edge 5 on one end and shank 6 on the other end, and ring 7 locking toggle in holder ports and contacts shank 6 of toggle 3. Toggle 3 is installed with its shank contacting ring over ring inner surface generating line. Part of contact surface of toggle 3 with ring 7 lies below plane running through axis of shaft square to longitudinal axis of core catcher. Height of contact of shank 6 of toggle 3 with ring 7 exceeds radius of shaft end face. EFFECT: prevented washing out of core and higher reliability of catcher operation due to its increased strength. 2 cl, 2 dwg
Patent RU-2011181-C1 (RU)
Title: Method for determining fatigue of blades of gas-turbine engine
Inventor: PLOTNIKOV YURIJ I
IPC: G01N3/32
Filed: 1991-06-13
Granted: 1994-04-15
Abstract: FIELD: testing equipment. SUBSTANCE: method involves cutting out a specimen from one blade of used set of blades, taking a skew section and measuring changes in microhardness of surface layer in length. Said microhardness changes in blades and specimen are determined relative to microhardness of middle layer of blades in order to determine endurance of the entire set of blades. EFFECT: higher efficiency, quick and easy determination of endurance of engine blades for their further safe operation on engine. 3 dwg
Patent RU-2021100-C1 (RU)
Inventor: LARINTSEV VASILIJ F
IPC: B26B15/00
Filed: 1991-05-12
Granted: 1994-10-15
Abstract: Использование: разрезание тканей войлока, резины и других материалов. Сущность изобретения: ножницы содержат режущую головку, включающую шарнирно закрепленные неподвижный и подвижный ножи с криволинейными режущими кромками, привод перемещения подвижного ножа, связанный с последним посредством червячной передачи, и механизм регулирования прижатия ножей. При этом подвижный нож имеет кулису, связанную с шестерней червячной передачи посредством ползуна и пальца, который закреплен в одном из отверстий, имеющихся в шестерне. Отверстия, имеющиеся в шестерне для размещения пальца, эксцентрично расположены на разных межцентровых расстояниях от оси вращения шестерни. Ножи имеют сменные лезвия. 7 ил.
Patent RU-2043276-C1 (RU)
Title: Garbage collector
Inventor: DZHANKARLO GALEADZI
IPC: B65F1/14
Filed: 1991-10-10
Granted: 1995-09-10
Abstract: FIELD: public services. SUBSTANCE: garbage collector has unit made in form of structure 1 with base 2 and cover 3 which are intended to form space to take in container 4. Structure 1 is connected with lifting mechanism 9, 10 installed for movement between position in which structure 1 is telescoped into well 11 and position in which it extends completely from well 11. Hollow column 15 is rigidly connected with cover 3 and with garbage container 4. EFFECT: enlarged operating capabilities. 16 cl, 5 dwg
Patent RU-2023455-C1 (RU)
Title: Пеногенератор
Inventor: KHARIN VASILIJ V
IPC: A62C5/00
Filed: 1991-12-09
Granted: 1994-11-30
Abstract: Использование: в противопожарной технике для получения воздушно-механической пены при тушении пожаров. Сущность изобретения: пеногенератор содержит корпус с пакетом пеногенерирующих стенок и распылитель, выполненный в виде многосопловой струйной форсунки с диаметром сопел в пределах 3 - 7 мм. Применение в пеногенераторе струйной форсунки с указанным диаметром сопел позволяет увеличить дальность подачи монодисперсной пены с высокой тушащей эффективностью. 3 ил.
Patent RU-2018198-C1 (RU)
Title: Galvanic cell
Inventor: SOKOLOV EVGENIJ A
IPC: H01M6/02
Filed: 1991-12-17
Granted: 1994-08-15
Abstract: FIELD: electrical engineering; measurement technology. SUBSTANCE: offered galvanic cell is of sectional design. Placed between two electrodes made of heterogeneous conducting materials is replaceable dielectric separator wetted with any electrolyte, for instance with water. Incase of power drop it is sufficient to wet separator with electrolyte or replace separator. EFFECT: enhanced operation reliability. 2 cl, 1 dwg
Patent RU-2019605-C1 (RU)
Inventor: ORCHINSKIJ SERGEJ V
IPC: D06F35/00
Filed: 1991-12-20
Granted: 1994-09-15
Abstract: FIELD: washing textile materials. SUBSTANCE: textile material is placed into washing container and is washed at high temperature with the help of detergent solution. Before washing and/or rinsing textile material is wetted within period which depends upon type of textile material and its contamination degree, said period being not less 1 min. During washing and rinsing treated material is affected by high-frequency vibrations of liquid's pressure, wavelength of said vibrations being in proportion to the size of washing container. EFFECT: improves efficiency of the method. 1 dwg, 2 tbl
Patent RU-2016103-C1 (RU)
Title: Method of processing copper-ammonia solutions
Inventor: PISARUK VIKTOR I
IPC: C22B3/44
Filed: 1992-03-31
Granted: 1994-07-15
Abstract: FIELD: radio technique, polygraphy and other industry branches. SUBSTANCE: method comprises steps of making pH of copper-ammonia solutions, being processed, equal to 8.2-8.8; subsequent heating of the solutions up to 75-90 C; treating them by alkali till achieving pH value, equal to 12.5-13.5, at agitation; performing the above mentioned heating process up to 75-90 C by bubbling steam or air through the solutions. In preferred variant of the invention, when the solutions had been heated up to 75-90 C, introducing to the solution powdered copper oxide. EFFECT: enhanced efficiency of metal recovery. 3 cl, 1 tbl
Patent RU-2012629-C1 (RU)
Title: Copper-base alloy
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C22C19/05
Filed: 1992-02-11
Granted: 1994-05-15
Abstract: FIELD: alloys. SUBSTANCE: alloy containing carbon, iron, nickel, manganese and aluminium has additionally silicon at the following ratio of components, wt. -% : carbon 0.3-0.4; iron 2.2-3.5; nickel 2.9-3.4; manganese 9.5-11.0; aluminium 3.5-4.2; silicon 3.4-4.2, and copper - the rest. Positive effect: enhanced resistance of metal against plastic deformations, prolonged period of exploitation of articles made of alloy proposed. EFFECT: enhanced hardness of alloy. 1 tbl
Patent RU-2045060-C1 (RU)
Title: Different oscillations combined converter
Inventor: BAKULIN ANDREJ V
IPC: G01N29/24
Filed: 1992-03-03
Granted: 1995-09-27
Abstract: FIELD: geological acoustics; measurement technology. SUBSTANCE: longitudinal and shift vibrations are excited in tested medium, which have inverse orthogonal polarization. EFFECT: improved efficiency; improved precision of measurements. 3 cl, 1 dwg
Patent RU-2012677-C1 (RU)
Title: Steel
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C22C38/28
Filed: 1992-05-09
Granted: 1994-05-15
Abstract: FIELD: metallurgy. SUBSTANCE: steel has, wt. -% : carbon 0.35-0.45; silicon 0.17-0.37; manganese 0.5-1.0; chrome 5-6; titanium 0.11-0.15; niobium 0.2-0.3; copper 0.2-0.3; cerium 0.15-0.2; tantalum 0.8-1.1; aluminium 0.01- 0.03; hafnium 3.8-4.8; rhenium 0.7-1.0; nitrogen 0.1-0.15, and iron - the rest. Steel is used in machine engineering. Hardness of steel proposed at 600 C is 52-55 HRC, and bearing strength is 0.07-0.1 mm. EFFECT: enhanced quality of steel. 1 tbl
Patent RU-2035989-C1 (RU)
Title: Apparatus for the counterflow contacting of liquid and gas
Inventor: KOMAROV STANISLAV MIKHAJLOVICH
IPC: B01J8/04
Filed: 1992-04-24
Granted: 1995-05-27
Abstract: FIELD: chemical industry. SUBSTANCE: apparatus for the counterflow contacting of liquid and gas a vertical cylindrical housing in which the ion-exchange moulded catalyzer or this catalyzer together with a checker and the checker itself are disposed throughout the height as alternating layers. The borders between the catalyzer layer or the catalyzer together with the checker and the checker layer disposed under it have shape of a cone with the vertex directed downwards and with the angle at the vertex equal to 110-170. The remaining borders are horizontal. EFFECT: facilitated manufacture. 1 dwg
Patent RU-2017427-C1 (RU)
Title: Dry milk gruel
Inventor: LADODO KALERIYA S
IPC: A23C9/00
Filed: 1992-04-27
Granted: 1994-08-15
Abstract: FIELD: milk processing industry. SUBSTANCE: dry milk gruel is prepared of dry milk base (44-48 mass %), meal processed by extrusion (38-45 mass %) and saccharose. EFFECT: improves quality of desired product. 7 tbl
Patent RU-2092862-C1 (RU)
Title: Способ контроля изоляции в сетях с глухозаземленной нейтралью и устройство для его осуществления
Inventor: GRIGOREV EDUARD NIKOLAEVICH
IPC: G01R27/08
Filed: 1992-05-08
Granted: 1997-10-10
Abstract: Использование: изобретени относится к области электротехники, в частности к контролю изоляции участков целей, влияющих на электро- и пожаробезопасность в электроустановках с заземленной нейтралью и могут быть использованы во всех производственно-технических и бытовых электросетях. Сущность: изобретение заключается в измерении суммарного сопротивления изоляции с помощью милливарметра, милливарметра, со шкалой, проградуированной в килоомах, токовая обмотка которого подключена к вторичной обмотке дифференциального трансформатора тока нулевой последовательности, выдающего напряжение несимметрии токов петли фаза - рабочий нуль. При этом многофазные цепи предварительно должны быть переведены в однофазный режим с помощью дополнительного коммутационного аппарата, замыкающего цепь одного из фазных силовых контактов общего контактора участка сети, отключаемого на период измерения. Изобретение позволяет уменьшить трудоемкость измерений, количество замеров и расчетов при нормальных и искусственных режимах работы электроустановки, упростить устройство и уменьшить его массогабаритные характеристики. 2 с.п. ф-лы, 1 ил.
Patent RU-2043481-C1 (RU)
Title: Light-weight heat-resistant grouting material
Inventor: SIRENKO PETR MIRONOVICH
IPC: C04B24/24
Filed: 1992-05-14
Granted: 1995-09-10
Abstract: FIELD: mining. SUBSTANCE: lightweight heat-resistant grouting material contains, mas. bentonite mud powder 2.0-19.0; filtering perlite 3.0-10.0; hydrolyzed polyacrylonitrile 1.0-1.3, and binder 70.0-93.7. Filtering perlite is used with the following composition, mas. SiO 2  65-74; Al 2 O 3 -12-15; 65-74; Fe 2 O 3  - 1,5-2,5 12-15; R 2 O 3 - 5-7 1.5-2.5; CaO 1.5-2.5; MgO 0.5-1.5; 60-1400 kg/m 3  5-7; some others 3-7. Grouting material features: density 60- 1400 kg/cu. m; moisture content within 2% floating particles not above 12% EFFECT: low water loss of material and low gas permeability of stone with simultaneous increase of stone strength. 2 cl, 1 tbl
Patent RU-2037308-C1 (RU)
Title: Tomato juice
Inventor: YANOVCHIK OLGA E
IPC: A23L2/02
Filed: 1992-06-05
Granted: 1995-06-19
Abstract: FIELD: food industry. SUBSTANCE: tomato juice is prepared from heat-treated plasma liquid and pulp of high-carotene orange-fruit tomatoes with the pulp fraction not less than 15 wt.-% The juice may also contain ascorbic acid, salt and spices to taste. EFFECT: improved flavor and taste characteristics. 2 cl
Patent RU-2047421-C1 (RU)
Inventor: KULIK ANDREJ DMITRIEVICH
IPC: B22D41/08
Filed: 1992-06-15
Granted: 1995-11-10
Abstract: FIELD: ferrous metallurgy. SUBSTANCE: sliding shutter has fixed and movable fire-resistant slabs mounted in steel casings, pressure members with rockers and separators provided with rockers and positioned between movable slab and rocker slides. Sliding shutter is further provided with movable slab motion limiting members. Slides of rockers are made detachable. Movable slab has thickness equal to total height of detachable slides and rollers. Slab motion limiting members are made in the form of vertical pin received in opening of movable slab casing. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 2 dwg