baber/WOPTO huggingface dataset:
Patent RU-2024656-C1 (RU)
Title: Device for laying lease cords to sizing machine
Inventor: MAZINOV VALERIJ S
IPC: D02H9/02
Filed: 1991-03-06
Granted: 1994-12-15
Abstract: FIELD: textile industry. SUBSTANCE: device comprises guide rollers, thread divider, knotting unit, dividing unit and lease reeds, all these being installed after the post for warping shafts of the machine. Leases are connected with their vertical motion drive. The number of divider shafts is equal to that of warping shafts and the divider shafts are installed in vertical posts by means of revolving frame. EFFECT: improved design. 2 cl, 3 dwg
Patent RU-2017693-C1 (RU)
Title: Glass
Inventor: SYTKO VLADIMIR V
IPC: C03C3/21
Filed: 1991-03-29
Granted: 1994-08-15
Abstract: FIELD: glass industry. SUBSTANCE: luminescence glass has, wt.-%: phosphorus pentoxide (P 2 O 5 ) 53.5-57.8; tungsten oxide (WO 3 ) 12-15.5; terbium oxide (Tb 2 O 3 ) 10.2-15, and potassium oxide (K 2 O) 15.5-20. Luminescence range of glass at 400-620 nm. Glass is used for irradiation transformation. EFFECT: enhanced quality of glass. 2 tbl
Patent RU-2025387-C1 (RU)
Inventor: CHERNOBROVKIN YURIJ G
IPC: B62L1/12
Filed: 1991-04-22
Granted: 1994-12-30
Abstract: Использование: в тормозных устройствах велосипедов. Сущность изобретения: тормоз для велосипеда содержит ось 1, на которой установлены две скобы 7, 8 и втулка. Во втулке выполнены поперечные пазы, длина каждого из которых превышает половину диаметра втулки. В пазах втулки установлены верхние концы пружин 9, 10. Пазы отстоят друг от друга на определенном расстоянии. На скобах 7,8 расположены упоры. Один упор выполнен с отверстием, а другой - с пазом. Пружины 9, 10 выполнены с односторонней навивкой, и их нижние концы расположены в одной вертикальной плоскости. 6 ил.
Patent RU-2026192-C1 (RU)
Inventor: VOLOSTNOV VADIM B
IPC: B29D30/20
Filed: 1991-05-05
Granted: 1995-01-09
Abstract: Использование: в шинной промышленности при сборке покрышек пневматических шин на разжимных сборочных барабанах. Сущность изобретения: средство для удержания слоя корда снабжено П-образными кронштейнами 8. Последние смонтированы на внутренней поверхности сегментов 3. Элементы захвата 10 установлены на кронштейнах 8. 3 ил.
Patent RU-2007313-C1 (RU)
Inventor: TALANOV BORIS P
IPC: B60T1/14
Filed: 1991-05-12
Granted: 1994-02-15
Abstract: FIELD: transport engineering. SUBSTANCE: when braking the tip of rotary lever 2 engages with a surface, and the tip is made in the form of mill 9. EFFECT: improved structure. 2 cl, 6 dwg
Patent RU-2000470-C1 (RU)
Inventor: VOROBEV MIKHAIL E
IPC: F03D7/00
Filed: 1991-06-03
Granted: 1993-09-07
Abstract: Использование: ветроэнергетика. Сущность  изобретени : ветроэнергетическа  установка  снабжена плавучей платформой 2,  на которой установлен ветродвигатель 1, резервуаром  6 с входным 7 и выходным 8 отверсти ми , напорной емкостью 13 с размещенным  в ней фильтром 15, резервуаром 20  очищенной воды и магистралью 21. Магистраль  21 соедин ет через задвижку 22 напор-  ную емкость 15 с резервуаром 20  очищенной воды. Плавуча  платформа 2 помещена  в резервуаре 6. Входное отверстие  7 соединено через первый регулирующий  клапан 11 с напорной емокстью 13, выходное  отверстие 8 соединено через второй регулирующий  клапан 12 с водоисточником.  Установка также снабжена системой регулировани . 2 ил.
Patent RU-2031902-C1 (RU)
Inventor: SENCHISHIN VITALIJ GEORGIEVICH
IPC: C08F2/44
Filed: 1991-06-17
Granted: 1995-03-27
Abstract: Сущность изобретения: смесь виниловых мономеров с активирующими и спектросмешающими добавками полимеризуют в присутствии насыщенных одноосновных жирных кислот с числом атомов углерода С=12 - 17 в количестве 0,015 - 0,02% от общего объема реакционной массы. Полимеризуют смесь при 60 - 80°С до образования форполимера, а дополимеризацию проводят при 140 - 200°С. 1 табл.
Patent RU-2008908-C1 (RU)
Title: Method for production of placental-spermal beta globulin
Inventor: KALININ YURIJ A
IPC: A61K35/52
Filed: 1991-06-24
Granted: 1994-03-15
Abstract: FIELD: medicine, obstetrics, gynecology, andrology, neonatology. SUBSTANCE: method consists in fractionation of man sperm plasma on immobilized testosterone through trichlorotriazine with subsequent ion-exchange chromatography of eluate on DEAE cellulose. EFFECT: production of 50% purity target product with 16% yield of placental-spermal β 2  globulin.
Patent RU-2014322-C1 (RU)
Title: Method of synthesis of dimethyl-2-difluoromethyl-4-(2-methylpropyl)- 6-trifluoromethyl-3,5-pyridinedicarbothioate
Inventor: KHELEN LI DZHANOSKI
IPC: C07D213/83
Filed: 1991-09-18
Granted: 1994-06-15
Abstract: FIELD: organic chemistry. SUBSTANCE: product: dimethyl-2-difluoromethyl-4-(2-methylpropyl)-6-trifluoromethyl-3,5- pyridinedicarbothioate, gross-formula is C 15 H 16 F 5 NO 2 S 2 , yield is 99%. Reagent 1: methanethiol. Reagent 2: aqueous solution of alkaline metal hydroxide. Reagent 3: corresponding pyridinedicarbonyl chloride. Reaction conditions: in organic solvent, in the presence of catalyst of phase transfer at 25-65 C. EFFECT: improved method of synthesis. 7 cl, 1 tbl
Patent RU-2022048-C1 (RU)
Title: Сталь
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C22C38/32
Filed: 1991-10-14
Granted: 1994-10-30
Abstract: Сталь, содержит, мас.%: углерод 0,25 - 0,35; хром 13,0 - 15,0; бор 0,01 - 0,02; кальций 0,001 - 0,02; медь 0,5 - 0,8; нитрид кремния 1,5 - 2,1; железо - остальное. Сталь обладает повышенными механическими свойствами, что позволяет изготавливать из нее изделия, работающие в условиях высоких нагрузок. 1 табл.
Patent RU-2025869-C1 (RU)
Title: Pole of electric machine with fluid cooling
Inventor: MAKSIMOV VITALIJ S
IPC: H02K9/00
Filed: 1991-10-30
Granted: 1994-12-30
Abstract: FIELD: electric machine engineering. SUBSTANCE: salient pole 1 of electric machine with fluid cooling has core 2 and shoe 3 with damping bars 4 dropped in slots and excitation coil 9 with solid conductors 10 insulated from core 2 with moulded dielectric 15 and registered with washer 14. Coolers 17 made of ferromagnetic corrosion-resistant steel are placed in slots over perimeter of core 2, coolers 18 and 19 of ferromagnetic corrosion-resistant steel are located in slots over perimeter of shoe 3. Service or running water or ferromagnetic fluid circulate through coolers as cooling agent. Cooling of coil 9 is accomplished through dielectric 15 and of shoes 3 and damping bars 4 through steel of pole 1 by means of coolers 17, 18, 19 anchored in slots by welding 20. EFFECT: facilitated manufacture, improved cooling conditions. 4 cl, 4 dwg
Patent RU-2014713-C1 (RU)
Title: Stabilized voltage converter with digital microcircuits
Inventor: SKACHKO VALERIAN N
IPC: G05F1/46
Filed: 1991-07-08
Granted: 1994-06-15
Abstract: FIELD: electrical engineering. SUBSTANCE: stabilized voltage converter is meant for secondary power supply sources. Push-pull amplifier is set in action from generator of rectangular voltage. Switching on of each transistor of it is delayed till natural process of switching off of transistor operated before is over. For this signals from supplementary winding of output transformer are used. Novelty of invention consists in that necessary amplification of signals of generator is performed with the aid of buffer elements with open collectors. For supply of power amplifier built on p-n-p transistors sum of voltages is used: positive polarity for supply of microcircuits and negative polarity is supplied from stabilizer which inverts (changes polarity) primary voltage and so controls generated voltage that measured (and stabilized) voltage in feedback circuit is kept within preset limits. In this case unit for suppression of through currents is built on two transistors of p-n-p type of conductance. Junctions base-emitter of transistors of power amplifier are shunted in turn by spacings collector-emitter of these transistors. Control over transistors of unit for suppression of through currents is conducted both by signals from supplementary winding of output transformer and by signals from buffer elements of opposite arms. EFFECT: improved operational characteristics. 2 cl, 2 dwg
Patent RU-2016959-C1 (RU)
Inventor: BARANOV ANDREJ YU
IPC: E02D1/00
Filed: 1991-12-13
Granted: 1994-07-30
Abstract: FIELD: geological survey. SUBSTANCE: device comprises extension pipe 13 with cone 1 in lower part, pressure transmitters 11, filter 7, and support member in the form of circular flange with central recess. Said recess communicates with radial through channels having oval wiser section at end wall of circular flange. The oval wider sections have nonreturn valves. EFFECT: improved design. 4 dwg
Patent RU-2034705-C1 (RU)
Title: Constructional product dry compaction press
Inventor: KOZLOV VALENTIN BORISOVICH
IPC: B28B3/00
Filed: 1991-12-18
Granted: 1995-05-10
Abstract: FIELD: construction material industry. SUBSTANCE: press has cheeks with slots disposed at the sites of interaction between cheeks and axle and extending in the direction of motion of compacting hydraulic cylinder stem. EFFECT: increased quality of constructional product and enhanced reliability in operation. 5 dwg
Patent RU-2105343-C1 (RU)
Title: Device for situation control
Inventor: OMEL CHENKO V V
IPC: G05B19/18
Filed: 1991-07-23
Granted: 1998-02-20
Abstract: FIELD: automation and systems for automatic control, in particular, for control of digital control objects, solving recognition and analysis problems for objects, situations, processes and phenomena which are described by finite set of features (symptoms, characteristics). SUBSTANCE: device has input register, N output registers, clock oscillator, OR gate which has N inputs, N classification units, each of which has AND gate, three memory units, comparison unit and address counter. In addition device has control unit, which has N OR gates, two groups off N AND gates and N inhibition gates which have M-1 inputs. In addition device has decision making unit which has M groups of AND gates which have respectively two, three, .., M inputs, and group of M OR gates which have respectively N-m inputs. EFFECT: searching tolerance classes of current control situations and corresponding control actions from set of connected component tolerance spaces which are dual to linear structure. 3 cl, 5 dwg
Patent RU-2013401-C1 (RU)
Title: Enamel
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C03C8/04
Filed: 1992-01-09
Granted: 1994-05-30
Abstract: FIELD: manufacture of coating for cast iron products. SUBSTANCE: the enamel comprises the following components (wt % ): 45-48 silicon oxide; 4-5 boron oxide; 4.5-6.1 aluminium oxide; 5-8.2 calcium oxide; 15-17.3 sodium oxide; 4-65 potassium oxide; 1-1.5 titanium oxide; 1.5-2 lithium oxide; 1-2 antimony oxide; 5.8-6.5 ferric oxide; and 5-5.7 zinc oxide. The enamel characteristics: the spreadability 48-57 mm; the firing temperature 800 C. EFFECT: improved properties of the enamel. 1 tbl
Patent RU-2101955-C1 (RU)
Title: Универсальный тестоприготовительный агрегат
Inventor: KORNIENKO VALENTINA DMITRIEVNA
IPC: A21C1/00
Filed: 1991-11-28
Granted: 1998-01-20
Abstract: Использование: изобретение относится к тестоприготовительному оборудованию и может быть использовано для приготовления теста как опарным, так и безопарным способом. Сущность изобретения: агрегат снабжен дополнительной тестомесильной машиной, параллельно подсоединенной к материалопроводу, выходящему из аппарата брожения, связанного с первой тестомесильной машиной. Наличие поочередно работающих заслонок позволяет приготавливать тесто как опарным, так и безопарным способом на одном и том же агрегате. 1 ил.
Patent RU-2034631-C1 (RU)
Title: Method for manufacturing filtering element
Inventor: USKOV ALEKSANDR M
IPC: B01D39/12
Filed: 1992-02-19
Granted: 1995-05-10
Abstract: FIELD: chemical industry. SUBSTANCE: after coiling wire on skeleton wire coils are squeezed to one another. Shaping of slot surface is carried out using removal of wire material part in the point of contact of the wire to one another, and by generation of slots and projections along all the length of spiral line, with slots and projections are made in points, where coils are touched to one another on one a coil an form a slot. Projections height equals slot width. EFFECT: highly productive manufacturing method. 2 dwg
Patent RU-2060203-C1 (RU)
Title: Cycloidal propeller
Inventor: FEDCHISHIN VITALIJ G
IPC: B63H1/04
Filed: 1992-03-17
Granted: 1996-05-20
Abstract: FIELD: manufacture of propellers for river and sea-going vessels. SUBSTANCE: propeller has blades with driven gears fitted on their axles and kinematically linked with central non-revolving gear whose shaft is rigidly connected with worm wheel; propeller is additionally provided with two vertical hollow struts with chain drives arranged inside them; arranged in outer recesses of these struts are plate-type reducers interconnected by horizontal blades having common line of orientation. Angular velocity of blades revolving about their axes is half the angular velocity of plate-type reducers. Struts are provided with stability stabilizers, fore flaps and aft steering gears or may be placed on swivel platform. EFFECT: simultaneous creation of driving and lifting forces; operation in shallow waters and washing ashore. 12 dwg
Patent RU-2071831-C1 (RU)
Title: Method for mixtures separation
Inventor: BRAGIN PAVEL A
IPC: B03B5/18
Filed: 1992-03-19
Granted: 1997-01-20
Abstract: FIELD: benefication of mineral resources, that is extraction of gold and platinum from gold placers. SUBSTANCE: method provides loading of material on screen, that makes arc-shape movement in liquid, its separation and separated products unloading. Movement of screen is exercised so, that each its point makes vibrations with amplitudes proportionally increasing in vertical and decreasing in horizontal planes depending upon distance of the point of screen to immovable point, around which screens are making swinging movements. EFFECT: increased effectiveness of gold extraction.
Patent RU-2060632-C1 (RU)
Title: Method of planting and keeping of insufficiently frost-resistant heat-loving perennial plants
Inventor: TSAPKO VASILIJ Z
IPC: A01G1/00
Filed: 1992-03-25
Granted: 1996-05-27
Abstract: FIELD: agriculture, timber industry, ornamental gardening. SUBSTANCE: one wall of hole for planting is made tilted to form slope. Plant is placed on slope square to its surface. With plant crown growing, hole is made deeper to provide shelter for plant in winter. EFFECT: enlarged operating capabilities, enhanced protection of plants. 3 dwg
Patent RU-2051134-C1 (RU)
Inventor: KOLESNIKOV VLADIMIR P
IPC: C02F101/30
Filed: 1992-02-28
Granted: 1995-12-27
Abstract: Использование: биохимическая очистка сточных вод в анаэробных и аэробных условиях органических и азотсодержащих веществ, а также биохимической очистки хозяйственно-бытовых и близких к ним по составу сточных вод с повышенным содержанием восстановленных и окисленных форм азота. Сущность изобретения: устройство для биохимической очистки сточных вод и удаления соединений азота состоит из денитрификатора, камеры смешения, биофильтра с системой орошения и направляющим поддоном, аэротенка-отстойника, аэрационных колонн, циркуляционного насоса и технологических трубопроводов. Эффективность процессов нитрификации и денитрификации обуславливается расположением денитрификатора перед камерой смешения и подсоединением подводящих трубопроводов денитрификатора к трубопроводу исходных сточных стоков и к напорному трубопроводу, подающему обрабатываемые стоки из камеры смешения в биофильтр. 1 ил.
Patent RU-2051822-C1 (RU)
Inventor: TALANOV BORIS P
IPC: B61D31/00
Filed: 1992-04-07
Granted: 1996-01-10
Abstract: FIELD: railway transport. SUBSTANCE: safety device to hold passenger on sleeping berth in rail car is made form of sheet with hooks on upper horizontaledge. Hooks engage with rings mounted on rod. Lower edge of sheet is secured on shaft fitted in brackets for turning by drive. Drive is formed by spring one end of which is secured on shaft, and other end, on wall of compartment. EFFECT: enhanced safety of passengers. 2 cl, 2 dwg
Patent RU-2031208-C1 (RU)
Title: Method for production of elastomer roofing material
Inventor: DOLINSKAYA RAISA MOISEEVNA
IPC: E04D5/00
Filed: 1992-04-15
Granted: 1995-03-20
Abstract: FIELD: manufacture of building materials. SUBSTANCE: in method for production of elastomer roofing material based on weather-proof rubbers, the side edges of panel of roofing material is formed with reducing thickness in process of vulcanization on drum continuous vulcanizer. EFFECT: higher efficiency. 1 tbl
Patent RU-2045365-C1 (RU)
Title: Device for the wire twisting
Inventor: IVANOV IGOR A
IPC: B21F7/00
Filed: 1992-05-25
Granted: 1995-10-10
Abstract: FIELD: melioration and highway engineering. SUBSTANCE: device has a housing in which covers with notches for the means of fixation the working body are disposed. The means of fixating are made as plates placed in the cover notches. The working body is made in the form of the driven gear wheel engaged with the drive one. EFFECT: enhanced efficiency. 2 dwg
Patent RU-2074202-C1 (RU)
Title: Method for production of modifying agent for polyvinyl chloride
Inventor: ZHILTSOV VALERIJ V
IPC: C08F279/02
Filed: 1992-05-26
Granted: 1997-02-27
Abstract: FIELD: production of modifying agent for polyvinyl chloride. SUBSTANCE: graft polymerization of vinyl chloride or methyl metacrylate on latex of rubber elastomer is carried out, mass ratio of monomer and elastomer being 5-30: 95-70 respectively. Said polymerization takes place in the presence of radical initiator and 0.1-1.3 % of elastomer. Said elastomer is chosen of group which includes 4-methyl-2,6-di-tert-butyl-phenol, 4-methoxy-2,6-di-tret-butyl-phenol, 2,2′-methylene-bis/4-methyl-6-tert-butyl-phenol/. Copolymer of butadiene and acrylonitrile at their mass ratio 80-55:20-45 respectively is used as said rubber elastomer. EFFECT: improved efficiency.
Patent RU-2062529-C1 (RU)
Title: Superlattice
Inventor: KAREVA GALINA G
IPC: H01L29/15
Filed: 1992-06-15
Granted: 1996-06-20
Abstract: FIELD: computer engineering, microelectronics, optoelectronics. SUBSTANCE: tunnel-clear layer of dielectric is placed between semiconductor substrate and metal electrode in superlattice. Substrate is so doped that region of spatial charge on boundary with dielectric in semiconductor is tunnel- clear. Thickness of dielectric layer is 1-5 nm. JnGa is used in the capacity of metal of electrode if substrate is made from silicon of p-type of conductance. EFFECT: facilitated manufacture, improved operational stability. 2 cl, 7 dwg
Patent RU-2077436-C1 (RU)
Title: Device fur delivering sand under locomotive wheels
Inventor: ISAEV IGOR P
IPC: B61C15/10
Filed: 1992-06-22
Granted: 1997-04-20
Abstract: FIELD: railway transport; locomotive sanding systems; devices to increase wheel-to-rail adhesion. SUBSTANCE: device has sand hopper 1 with holes 4, valves 5 installed on hopper 1 over holes 4 with armatures 6 secured in valves, and electromagnet 7 to control closing and opening of valves 5. Sand hopper 1 made in form of hollow ring with inner radial partitions is secured on wheelset disk. Additional holes are made on outer side of hopper 1. Holes are arranged diametrically opposite and equidistantly from each other. Valves with armatures secured on valves are placed over corresponding holes. Electromagnet 7 is arranged in lower portion of hopper above valves displaced when wheels rotate. EFFECT: improved adhesion of wheel and rail. 3 dwg
Patent RU-2094359-C1 (RU)
Inventor: OKHRIMOVICH VLADIMIR MARKIYANO
IPC: B66C13/12
Filed: 1992-07-03
Granted: 1997-10-27
Abstract: Использование: краностроение, в частности устройства для измерения длины и кабельной связи с грузонесущей секцией телескопической мачты. Сущность изобретения: устройство содержит датчик длины стрелы и соосный ему приводной барабан с гибким органом, токосъемный барабан и кабель, конец которого присоединен к оголовку стрелы. Устройство имеет установленную на поворотной части крана вертикальную направляющую штангу с блочком в верхней части и противовесом, смонтированным с возможностью перемещения относительно штанги. Приводной и токосъемный барабаны объединены в одну каретку, а свободный конец гибкого органа связан с противовесом. 1 з.п. ф-лы, 2 ил.
Patent RU-2091298-C1 (RU)
Title: Sulfuric acid production plant
Inventor: SAENKO NIKOLAJ D
IPC: C01B17/76
Filed: 1992-07-09
Granted: 1997-09-27
Abstract: FIELD: sulfuric acid production. SUBSTANCE: invention deals with equipment for production of sulfuric acid from exhausted acids and other sulfur-containing wastes. Plant includes heat decomposition unit, first-step sulfur dioxide washing unit containing evaporation tower 1 and mist eliminator system 2, second-step sulfur dioxide washing unit III containing condensation (3) and blowing-off (4) towers, neutralizer 5, internal water circuit unit IV and drying-absorption unit V, contact-compression unit VI, and unit VII for sanitary purification of effluent gases with sulfite- sulfate lyes. According to invention, plant is provided with neutralizer 5 whose inlet is connected with condensate outlet in second-step washing unit and outlet is connected with inlet of internal water circuit unit, whereas cooling agent outlet of the latter is connected with sanitary effluent gas purification unit. Plant has no sulfate lye and acid water-circuit drains. EFFECT: increased reliability of plant and reduced sulfur dioxide content in effluent gases. 1 dwg, 2 tbl
Patent RU-2046856-C1 (RU)
Title: Loom with clamping shuttles
Inventor: HUEBNER OSKAR
IPC: D03D47/38
Filed: 1992-09-18
Granted: 1995-10-27
Abstract: FIELD: looms. SUBSTANCE: device has mechanism for changing weft thread color having low mass casing and thread transfer low mass rods. Mechanism for changing color is driven directly by highly dynamic servomotor. The loom operates at a speed greater than 350 revolutions per min. EFFECT: high production output. 5 cl, 4 dwg
Patent RU-2039530-C1 (RU)
Title: Osteosuture clamping device
Inventor: SOKOLOV VALERIJ S
IPC: A61B17/58
Filed: 1993-07-14
Granted: 1995-07-20
Abstract: FIELD: medical engineering; orthopedic surgery. SUBSTANCE: device has a plate made of material with shape memory. One end of the plate has the form of a fork with sharp bent ends. The other end is sharp and crooked. The longitudinal groove wall is not less than two thicknesses wide. EFFECT: reliable immobilization of tubular bone fragments without using plaster bandage. 2 dwg
Patent RU-2026184-C1 (RU)
Title: Device for manufacture of hollow articles of composition moulding materials
Inventor: PRUSHAK VIKTOR YAKOVLEVICH
IPC: B29C43/22
Filed: 1992-06-04
Granted: 1995-01-09
Abstract: FIELD: wood industry. SUBSTANCE: device for manufacture of the articles has mean for giving reciprocal motion to the punch with rotation around the axis in the event of its raising. The mean has bearing brackets ensuring fastening of the punch to the press plate with clearance, closed variable-depth groove made in the punch and spring-loaded roller. Ring-ripper with cutting teeth is fastened to the lower face surface of the punch. EFFECT: enhanced efficiency of manufacture of wood articles. 3 dwg
Patent RU-2045236-C1 (RU)
Inventor: ZVEREV EVGENIJ VLADIMIROVICH
IPC: A61B17/16
Filed: 1992-09-09
Granted: 1995-10-10
Abstract: FIELD: traumatology and orthopedics; treatment of fractures and nonunions of the neck of femur. SUBSTANCE: device comprises hollow casing 2 with internal bushed whose outer surface matches with the internal surface of casing 2 and hollow core 1 provided with end cutting edges 3. Said core 1 and internal surface of casing 2 1 have cross sections in the form of rectangular crosses formed by U-shaped members. The end of casing 2 oriented away from the core and the bushed ends are butt-shaped. EFFECT: improved design. 4 dwg