baber/WOPTO huggingface dataset:
Patent NL-1022908-C1 (NL)
Title: Loading device for forklift truck has telescopic arm for moving load rack in both a first and second direction relatively to truck
Inventor: LUKASSEN HENDRIKUS ALBERTUS JO
IPC: B66F9/06
Filed: 2003-03-12
Granted: 2004-09-14
Abstract: The loading device for a forklift truck (1,2,3) has a telescopic arm (8,10) for moving a load rack in both a first and a second direction relatively to the truck. The telescopic arm is provided with a pick-up component (12,13) for securement of a loading rack (23). With the forks of the vehicle, part loads can be taken out of the loading rack and placed in a desired position.
Patent NL-1024318-C1 (NL)
Title: Baby harness for holding baby in position during e.g. sleeping, has fasteners for releasably securing it to support structure such as mattress
Inventor: HOBO IRIS EPKJEN
IPC: A47D15/00
Filed: 2003-09-18
Granted: 2005-03-21
Abstract: The harness is provided with fasteners for securing it to corresponding fasteners on a support structure such as a mattress, changing mat, towel or blanket. The fastener system comprises hook and loop fastener tapes (e.g. Velcro) and the fasteners on the support structure are releasably secured to the latter.
Patent NL-1034724-C1 (NL)
Title: Textile piece for tent on child car seat, has front portion attached to head of chair in front of vehicle, and rear portion attached to headrest of seat of vehicle, where piece surrounds sides and edges of seat of vehicle
Inventor: HUIBERTS PETRUS MARTINUS
IPC: B60N2/60
Filed: 2007-11-20
Granted: 2008-12-23
Abstract: The piece has a front portion attached to a head of a chair in front of a vehicle, where the piece surrounds the sides and edges of a seat of the vehicle. A rear portion is attached to a headrest of the seat of the vehicle.
Patent RU-2066695-C1 (RU)
Title: Method of restoring rolls from hypereutectoid steels
Inventor: DAVYDOV VLADIMIR N
IPC: C21D9/38
Filed: 1986-11-25
Granted: 1996-09-20
Abstract: FIELD: metallurgy, namely restoring of rolls from hypereutectoid steels operating in conditions of complex cyclic loads and large temperature drops, for example, rolls of hot rolling mills. SUBSTANCE: in order to enhanced mechanical properties of roll and quality of its surface after fusion on end heat treatment roll is being subjected to surface heating by compressed pulsating arc up to 1150-1250 C upon motion of heat source with rate 100-180 m/h and subsequent air cooling. Novelty is carrying out not only restoring of roll but also its surface heat treatment. EFFECT: enhanced mechanical properties and surface quality of restored roll. 1 cl, 1 tbl
Patent RU-2045542-C1 (RU)
Title: Method of making thin-walled hollow polymeric article or polymeric coating on the backing
Inventor: UILYAM DUNKAN POTTER
IPC: A61F6/04
Filed: 1990-08-17
Granted: 1995-10-10
Abstract: FIELD: polymeric articles. SUBSTANCE: articles were made by applying solution of urethan prepolymer with terminal amine groups at fuctionality 2 and mean molecular mass at the range from 8000 to 60000. The source of vulcanizing agent: 0.5-10.0 wt.-% solution of compound which reacts with the terminal amine groups. Polyurethan solution is applied by gage dipping on it followed by dipping in vulcanizing agent working solution. The surface is heated after applying urethane prepolymer solution and vulcanizing agent solution on the gage surface. EFFECT: improved method of making. 11 cl, 1 tbl
Patent RU-2012427-C1 (RU)
Title: Device for the seed separation by elasticity
Inventor: KHARLAMOV SERGEJ A
IPC: B07B13/00
Filed: 1990-08-13
Granted: 1994-05-15
Abstract: FIELD: agriculture. SUBSTANCE: device has feeder 4, batcher 3, reflecting members in the shape of truncated cone 11, dividers of cylindrical shape 12, slide boards in the shape of funnels 13. In the process of separation the most elastic fractions are separated out of the initial product. The device operation is based on the numerous collisions of the seed material particles with the reflecting surfaces under the action of their gravitational force. The quality of the separation is regulated by the change in the feed of material, by the displacement of the reflecting surfaces and the dividers, by installing the working organs with different geometric parameters. EFFECT: increased quality of separation. 2 cl, 3 dwg
Patent RU-2022363-C1 (RU)
Inventor: YAKUBOV MARAT A
IPC: G06G7/62
Filed: 1990-08-31
Granted: 1994-10-30
Abstract: Имитатор выходных сигналов тензорезисторов относится к технике метрологии для проверки и аттестации вторичных тензоизмерительных приборов. Цель изобретения - расширение метрологических возможностей и области применения за счет способности имитировать сигналы статического и динамического характера. Имитатор выходных сигналов тензорезисторов содержит измерительный мост 1, плечи которого образованы резисторами 2 - 5, источник 14 питания, два диода 6, 17, четыре линеаризующих резистора 7, 8, 18, 19, источник 9 образцового напряжения с первым и вторым выводами 10 и 11, первый и второй выводы 12 и 13 питания измерительного моста, первый и второй информационные выводы 15 и 16 измерительного моста. 1 з.п.ф-лы, 1 ил.
Patent RU-2057811-C1 (RU)
Inventor: DROKIN DMITRIJ A
IPC: C12Q1/68
Filed: 1990-12-17
Granted: 1996-04-10
Abstract: Использование: вирусология, создание новых синтетических олигонуклеотидных зондов для идентификации флавивирусов. Предлагаемый набор олигонуклеотидных зондов предусматривает проведение четкой видовой идентификации 9 видов флавивирусов. В набор входят также группоспецифичные зонды - к вирусам японского энцефалита и Денге I, II, IV клещевого энцефалита желтой лихорадки, а также для идентификации вируса энцефалита долины Муррея и энцефалита Сан-Луи. 6 табл.
Patent RU-2035525-C1 (RU)
Title: Method and device for continuous production of nickel strip
Inventor: MNUKHIN ALEKSANDR S
IPC: C23C16/54
Filed: 1991-01-03
Granted: 1995-05-20
Abstract: FIELD: production of metallic nickel. SUBSTANCE: method involves delivery of reaction gas containing nickel carbonyl vapors and their thermal decomposition on the heated external surface of a rotating drum. The device for realization of the method comprises reaction chamber with drive drum, reaction gas delivery unit, reaction products discharge unit and unit for withdrawal of produced strip. The amount of reaction gas delivered to outer section is 1.2-1.6 times larger than its amount delivered to the central portion of the drum. The delivery unit is arranged coaxially with the drum, has a slot of variable section whose clear area can be adjusted by a split bushing installed inside. The relation of areas of the central and outer portions of the slot is 1:1.2-1:1.6, the length of each outer portion of the slot is 5-20% of its total length and the area of each outer portion is 5-20% of the total drum area. The delivery unit has the form of a cylinder. Each end face of the rotating drum has water-cooled radiators with a fluoroplastic ring whose outside diameter is larger than the drum diameter by the thickness of the formed strip. EFFECT: improved functional and operating characteristics. 4 cl, 5 dwg, 1 tbl
Patent RU-2009997-C1 (RU)
Title: Method of material making from artificial graphite
Inventor: PREOBRAZHENSKIJ ALEKSANDR YA
IPC: C01B31/04
Filed: 1991-01-17
Granted: 1994-03-30
Abstract: FIELD: technical materials. SUBSTANCE: artificial graphite of spectral purity is made in the form of block, enclosed it by envelope consisting of powder-like magnesium oxide at the ratio of envelope and block size at the range from 2: 1 to 3: 1. Then block with envelope is subjected for successive pressure (1.0-2.5 GPa) and temperature (2000-2500 C) for 4-6 min. Method insures to obtain material made of artificial graphite with volume mass exceeding 2.00 g/2.00 g/cm 3  and showing high ordering degree of microstructure. EFFECT: enhanced quality of material. 1 tbl
Patent RU-2028236-C1 (RU)
Title: Rail vehicle running gear body frame
Inventor: ZINCHENKO VIKTOR IVANOVICH
IPC: B61F1/02
Filed: 1991-02-28
Granted: 1995-02-09
Abstract: FIELD: railway transport. SUBSTANCE: end parts of center sills 1 in frame of rail vehicle running gear body are interconnected by means of box-shaped circular (or elliptic) member 5 which is additionally fastened to side beams 2. EFFECT: enlarged reliability of cars. 3 dwg
Patent RU-2042597-C1 (RU)
Inventor: MATVEEV OLEG S
IPC: B65G47/34
Filed: 1991-03-05
Granted: 1995-08-27
Abstract: Использование: в средствах для подачи материалов к станкам, например к деревообрабатывающим станкам раскряжовочных установок. Устройство содержит раму, цепной конвейер с грузонесущими траверсами и ведущей звездочкой. Ведущая звездочка осью закреплена на раме и с ней через кинематическую связь соединен многоступенчатый привод. На рычагах, шарнирно закрепленных на оси ведущей звездочки, имеющих привод качательного движения, размещен центрирующий ролик. Кинематическая цепь между приводом и ведущей звездочкой имеет большее передаточное отношение, чем кинематическая цепь между ведущей звездочкой и центирующим роликом. Система управления устройством содержит блок управления перемещением ролика в различные позиции выше уровня траверс и блок опускания ролика в конце цикла подачи. 7 з.п.ф-лы, 10 ил.
Patent RU-2005340-C1 (RU)
Inventor: KOVALEV MIKHAIL M
IPC: A01D45/06
Filed: 1991-04-17
Granted: 1994-01-15
Abstract: Изобретение относитс  к сельскохоз йственному  машиностроению и может быть использовано1  в льноуборочных машинах. Делитель содержит  опорный полозок 1, боковые стеблеотводы 2, 3,  шарнирно соединенные с опорным полозком 1 и  рамой 4 машины, и разделительный брус 5, нижний конец которого закреплен на опорном полозке 1, а  верхний установлен с возможностью обеспечени   поворота на раме 4 машины. Опорный полозок 1  выполнен пустотелым, а передние концы стеблеот-  водов 2, 3 соединены между собой, расположены  внутри опорного полозка 1 в плоскости 0-0 симметрии  делител , при этом в месте соединени   стеблеотводов 2, 3 выполнен продольный паз 6, в  котором расположен шарнир 7. Верхний конец  разделительного бруса 5 посредством шарнира 8  установлен на раме 4 машины. На шарнире 7 креплени  боковых стеблеотводов 2. 3 с опорным полозком  1 с обеих сторон соединенных концов стеблеотводов  2, 3 смонтированы упругие элементы.  Дл  изменени  положени  делител  в пластинах 10  имеютс  отверсти  11. Изобретение позвол ет повысить  надежность и упростить конструкцию устройства . 2 злф-лы, 6 ил.
Patent RU-2001872-C1 (RU)
Inventor: KURDYUKOV ALEKSANDR S
IPC: B66D5/10
Filed: 1991-05-05
Granted: 1993-10-30
Abstract: Использование: в скреперных лебедках большой  мощности, примен емых в шахтах Тормозное  устройство дл  скреперной лебедки содержит металлическую  ленту с колодками, выполненную по  меньшей мере из двух участков, Участки пенты соединены  между собой шарниром и установпены ид  наружной поверхности зубчатого венца Свободные  концы частей ленты соединены т гой с упора -  ми Участки ленты выполнены разной длины, причем  участок ленты с большей длиной установлен на барабане  со стороны сбегающей ветви 2 ип
Patent RU-2111489-C1 (RU)
Title: Method to predict nonactive type of tuberculosis
Inventor: STRELIS AJVAR KARLOVICH
IPC: G01N33/49
Filed: 1991-05-12
Granted: 1998-05-20
Abstract: FIELD: medicine, clinics of internal diseases. SUBSTANCE: the smear of peripheral blood of a patient is simultaneously fixed and fluorochromised in 0.5% alcoholic solution of chlortetracycline for 30 s, then neutrophilic luminescence intensity is detected by luminescence microscope and at its decrease by 10% and higher against the norm nonactive type of tuberculosis is predicted. EFFECT: higher accuracy of diagnostics.
Patent RU-2068583-C1 (RU)
Title: Device which accounts numbers of vehicles
Inventor: KOLTSOV NIKOLAJ E
IPC: G07C5/10
Filed: 1991-06-27
Granted: 1996-10-27
Abstract: FIELD: vehicles. SUBSTANCE: device has vehicle accountant radio station 1, control point radio station 2, controller 3 and recording unit 4. Radio station of vehicle accountant has keypad 5, memory register 6, indicator 7, parallel-to-serial code converter 8, pulse generator 9, pulse counter 10 and multiplexer 11, transmitter 12 with modulator 13, receiver 14 with demodulator 15, power supply 16, which is connected to transmitter 12 through single pulse generator 17, and pulse selector 18. Radio station of control point has transmitter 19 with turn-on switch 20 and modulator 21 and receiver 22 with demodulator 23. Controller 3 has frequency dividers 24, 34, counters 25, 35, 39, pulse generators 26, 40, 42, serial circuit which has parallel-to-serial code converter 27, register 28, gates 29, 33 and 26, pulse generator 37, integrator 41. Increased precision is achieved by introduction of keypad which provides possibility to input and encode numbers. Device may be used for automatic centralized accounting numbers of vehicles (carriages, containers) in areas of railroad terminals, ports, warehouses, storehouses and building sites. EFFECT: increased speed, increased precision. 2 dwg
Patent RU-2046050-C1 (RU)
Title: Hydrofoil ship
Inventor: PERELMAN BORIS S
IPC: B63B1/12
Filed: 1991-09-30
Granted: 1995-10-20
Abstract: FIELD: shipbuilding. SUBSTANCE: hydrofoil ship has above-water and underwater hulls connected by struts; hydrofoils are secured on hulls; weatherworks consists of two hulls connected by means of transverse beams; these hull are of standard shipboard lines at considerable deadrise; underwater portion has volume equal to about 70 percent of volume displacement of ship. Hulls together with connecting members and hydrofoils form rigid frame-truss structures. EFFECT: enhanced reliability. 2 dwg
Patent RU-2085426-C1 (RU)
Title: Method of checking condition of rail switches and detecting premature wear in zone of switch points
Inventor: VOLFGANG NAJER
IPC: B61L5/10
Filed: 1992-05-07
Granted: 1997-07-27
Abstract: In a method for monitoring the condition of rail switch points and for detection of premature abrasive wear-and-tear in the region of the tongue switching rail (3) of the points, the signals from at least one proximity sensor (2) in the region of the tongue switching rail (3) of the points are evaluated when the tongue switching rail is travelled upon, and the smallest measured value of the separation distance (l) during the travel is stored in memory. The smallest measured value stored in memory and at least a first limiting value for the smallest separation distance are compared with one another and, when the smallest measured value in memory exceeds this first limiting value, a warning signal is generated.
Patent RU-2071884-C1 (RU)
Title: Machine for electroerosion treatment of stationary part by wire tool-electrode
Inventor: LEHMANN HANS
IPC: B23H7/02
Filed: 1992-05-29
Granted: 1997-01-20
Abstract: FIELD: cutting out parts with use of wire electrode. SUBSTANCE: machine includes two brackets, two cutting out heats mounted on two systems for crossing motion. Foundation of machine is formed by vertical members mutually connected with formation of cavity. Cross beam carrying two systems for crossing motion is mounted on one or several members of machine foundation. Posts for system of part fastening are also mounted on foundation. The latter includes collector for dielectric liquid and for waste wire electrode. Volume of foundation cavity from lower cutting out head until collector is empty. EFFECT: enhanced accuracy; improved design. 8 cl, 3 dwg
Patent RU-2017995-C1 (RU)
Title: Two-stroke internal combustion engine
Inventor: PLYUSHCHEV VALERIJ G
IPC: F02B33/12
Filed: 1991-12-09
Granted: 1994-08-15
Abstract: FIELD: engine engineering. SUBSTANCE: finned heat exchanger is received in an under-piston compression chamber. The heat exchanger has passages for circulating of a coolant. The passages are coupled with a pump which is set in operation by a shaft of the engine. Axes of inlet openings point in the finned surface of the heat exchanger. EFFECT: enhanced efficiency. 4 dwg
Patent RU-2017786-C1 (RU)
Title: Composition for recultivation
Inventor: OSATSKIJ LEONID G
IPC: C09K17/00
Filed: 1991-10-28
Granted: 1994-08-15
Abstract: FIELD: agriculture. SUBSTANCE: composition for recultivation has, %: brown coal dust 29.00-41.1; alkaline waters of benzene rectification (as dry matter) 7.74-10.98, and water - the rest. Alkaline waters of benzene rectification are dissolved in water, brown coal dust is added, and mixture is stirred up to homogeneous mass preparing. Composition is added to the soil after 24 h, not early. EFFECT: enhanced quality of composition. 7 tbl
Patent RU-2070022-C1 (RU)
Inventor: GRITSENKO ANATOLIJ G
IPC: A61H23/00
Filed: 1991-12-13
Granted: 1996-12-10
Abstract: Изобретение относится к медицине, в частности к терапии, и может быть использовано для лечения больных амилоидозом. Для этого определяют положение остистых отростков позвонков на уровне С 3 -C 6 , D 9 -L 1 , L 4 -S 3  и при их смещении проводят репозицию мануальным воздействием с усилием 15-35 кг/см 2  при проведении 25-30 сеансов.
Patent RU-2006287-C1 (RU)
Inventor: PONOMAREV GRIGORIJ M
IPC: B03B5/02
Filed: 1991-11-05
Granted: 1994-01-30
Abstract: FIELD: mechanical engineering. SUBSTANCE: concentrator enriching member 3 has a chute with wedge-shaped projections 4 and discharging tray 5 with a bottom fastened to a perforated lower section of the chute over finishing tray 6. EFFECT: improved structure. 2 dwg
Patent RU-2049104-C1 (RU)
Inventor: KOSHELEVA ANTONINA F
IPC: C09J4/02
Filed: 1991-12-27
Granted: 1995-11-27
Abstract: Использование: для изготовления слоистых изделий из силикатного стекла, предназначенных для остекления автомобилей. Сущность изобретения: клеевая композиция включает метилметакрилат, алкил (C 4 -C 8 ) акрилат, дибутилфталат, монометакрилатэтиленгликоля, диметакрилатэтиленгликоля, триаллилизоцианурат, метакрилатметилметилдиэтоксисилан и инициатор полимеризации при определенном соотношении компонентов. 1 табл.
Patent RU-2012657-C1 (RU)
Inventor: SHCHEPOCHKINA YULIYA A
IPC: C22C37/08
Filed: 1992-01-13
Granted: 1994-05-15
Abstract: FIELD: metallurgy. SUBSTANCE: cast iron containing carbon, silicon, manganese, chrome, nickel, niobium, zirconium, boron, iron has additionally tungsten and nitrogen at the following ratio of components, wt. -% : carbon 2.5-4.0; silicon 0.4-0.8; manganese 1.8-2.2; chrome 22-25; nickel 0.5-0.8; niobium 0.8-3.0; zirconium 0.05-0.1; boron 0.12-0.2; tungsten 0.7-1.3; nitrogen 0.02-0.03, and iron - the rest. Cast iron is used in machine engineering. EFFECT: enhanced wear-resistance and strength of cast iron. 1 tbl
Patent RU-2051316-C1 (RU)
Inventor: POTAPOV VALERIJ IVANOVICH
IPC: F23J11/00
Filed: 1992-03-16
Granted: 1995-12-27
Abstract: Использование: в энергетике, на тепловых электростанциях с газотурбинными установками, работающими на природном газе. Сущность изобретения: устройство для удаления газа тепловой электростанции дополнительно содержит эжектор, напорный патрубок которого соединен с трубопроводом подачи воздуха, выходной с вентилируемым зазором дымовой трубы, а всасывающий с выходным трубопроводом газотурбинной установки, причем последний подключен к газоотводящему каналу, при этом вентилируют зазор между несущей оболочкой и газоотводящим каналом дымовой трубы газом, а в качестве газа используют охлажденные продукты сгорания газотурбинной установки или смесь воздуха с продуктами сгорания газотурбинной установки. 2 с. п. ф-лы, 1 ил.
Patent RU-2038282-C1 (RU)
Title: Load-lifting mechanism for articles with cone or cylindrical shape
Inventor: TEMNIKOV GENNADIJ V
IPC: B66C1/62
Filed: 1992-04-20
Granted: 1995-06-27
Abstract: FIELD: rigging works. SUBSTANCE: load-lifting mechanism has crosspiece 1 on which gripping organs equipped with screw props 5 fixing the article position relative to suspensions 2 are rigidly mounted. EFFECT: enhanced efficiency. 5 dwg
Patent RU-2031201-C1 (RU)
Title: Hollow part cleaning device
Inventor: MAKAROV ALEKSANDR E
IPC: B08B9/032
Filed: 1992-04-13
Granted: 1995-03-20
Abstract: FIELD: construction engineering. SUBSTANCE: coaxial reflectors of case have tops. Working surface of reflectors is essentially assembly of axial-symmetry surfaces of revolution. Reflector tops face each other, working surfaces are concave. Generating lines of surfaces of revolution are common-focus quadric curves placed on geometric axis of power electrodes. EFFECT: improved design. 1 dwg
Patent RU-2051637-C1 (RU)
Inventor: NIGMATULLIN KAMIL KASIMOVICH
IPC: A61B17/60
Filed: 1992-04-28
Granted: 1996-01-10
Abstract: FIELD: traumatology and orthopedics. SUBSTANCE: tongs comprise articulated branches with working jaws which have slots for a pin, main punch, main matrix, and additional matrix and punch positioned side by side with the main ones. The punches are shaped as plates rounded at the working side while matrices have the form of rectangular hollows in the working jaws. EFFECT: improved design. 4 dwg
Patent RU-2018927-C1 (RU)
Title: Modulo 3 adder
Inventor: AVGUL LEONID B
IPC: G06F7/49
Filed: 1992-05-18
Granted: 1994-08-30
Abstract: FIELD: computer technology; microelectronics. SUBSTANCE: adder has two bicondition gates, two modulo 2 addition elements, inputs of senior and junior digits of the first operand, inputs of senior and junior digits of the second operands, outputs of senior and junior digits of the result. Senior and junior digits x 1  and x 2  of the first operand X=2x 1 +x 2  enter inputs of the adder, as well as senior and junior digits y 1  and y 2  of the second operand Y=2y 1 +y 2 , where x i ∈ {0, 1}, Y i ∈ {0, 1}, i= 1, 2 and X∈ {0,1,2,3}, Y∈ {0,1,2,3}. Two-digit binary code of result R=2z 1 +r 2  is formed at outputs of the adder for operation of modulo 3 addition of two numbers X and Y. EFFECT: high speed of operation; simplified design. 1 tbl, 1 dwg
Patent RU-2032797-C1 (RU)
Title: Method for making of cast-in-place pile by drilling
Inventor: KORSTEN MATTI LEMBITOVICH
IPC: E02D5/36
Filed: 1992-04-27
Granted: 1995-04-10
Abstract: FIELD: construction. SUBSTANCE: method for making cast-in-place pile by drilling includes drilling of hole in ground with use of drilling mud and subsequent underwater concreting of pile. Method features application of drilling mud in form of aqueous solution of hydrolyzed polyacrylonitrile. Underwater concreting is carried out after formation of gel stone on hole walls. EFFECT: higher efficiency.
Patent RU-2007949-C1 (RU)
Inventor: TARANTSEV ALEKSANDR A
IPC: A47K1/14
Filed: 1992-06-03
Granted: 1994-02-28
Abstract: FIELD: sanitary engineering. SUBSTANCE: casing of plug-filter is made in form of a cup provided with holes. Casing has upper insert rotary cap provided with identical holes. Cap has flanging along the perimeter; the flanging hangs over the casing. The casing itself is provided with sealing layer along its perimeter. For one design the rotary cap is connected with adjusting ring and casing has a hole provided with a screw which is connected with rotary cap from the lower part. In the other design rotary cap has axial hole and protrusion and casing has bottom-axial channel, moreover, adjusting ring has a rod fixed in the channel of the casing. EFFECT: improved convenience of exploitation. 5 cl, 3 dwg
Patent RU-2031760-C1 (RU)
Inventor: PIRAJNEN VIKTOR YU
IPC: B23B51/04
Filed: 1992-05-29
Granted: 1995-03-27
Abstract: FIELD: materials machining. SUBSTANCE: cutting tool has casing 1 with a slot located perpendicular to its longitudinal axis and enabling cutting member 3 placing in it. The cutting member may be fixed by threaded rest. The rest is installed in longitudinal opening in casing wall, and catch 21 is made in the form of one beam for spring loaded two-beamed lever installed such to enable revolution around axis linked to a cantilever fixed such to prevent motion related to the casing. Cutting members 3 are made along all face of the casing 1. Cutting teeth 4 are made on the internal side of casing wall, and hollows between teeth 4 have communication with closed spiral slot 5 and hollows between cutting members 3. Drive shaft 11 and rod 18 are located in the casing. EFFECT: ring drilling and kern cutting advantages. 2 cl, 5 dwg