baber/WOPTO huggingface dataset:
Patent RU-2024272-C1 (RU)
Inventor: KARTASHOV VIKTOR N
IPC: A63C9/085
Filed: 1991-04-17
Granted: 1994-12-15
Abstract: Изобретение относится к устройствам для крепления ботинок к горным лыжам. Сущность: в передней головке губки поворачиваются на рычаге вокруг вертикальной оси, рычаг взаимодействует через ползун со спиральной пружиной, расположенной поперечно в неподвижном корпусе. Для регулировки усилия срабатывания головки оси расположены на пластине, перемещающейся в продольном направлении, отверстия в рычагах выполнены удлиненными. 2 з.п. ф-лы, 6 ил.
Patent RU-2014284-C1 (RU)
Title: Method for effecting purifying waste water from petroleum products
Inventor: KOZHOKAR ALEKSANDR I
IPC: C02F101/32
Filed: 1991-04-25
Granted: 1994-06-15
Abstract: FIELD: purifying waste water. SUBSTANCE: waste water with the initial concentration of 20-30 mg/l is purified through mixing with extractant which contains low-boiling hydrocarbon, e.g. hexane, n-octane at the volume ratio of (20-100):1 for 7 - 10 min. Then separation into layers is provided for 15 - 20 min at vacuum of 100 - 150 mm m. c. the phases being separated and the residual extractant being removed from the water phase by means of air at a temperature of 50 - 60 C. The content of petroleum products remaining in the purified water never exceeds 0,05 mg/l. EFFECT: improved quality of purification. 2 cl
Patent RU-2100460-C1 (RU)
Title: Amalgamator for isolation of precious metal from slurry
Inventor: EVSEEV YURIJ V
IPC: C22B11/12
Filed: 1991-06-02
Granted: 1997-12-27
Abstract: FIELD: nonferrous metallurgy. SUBSTANCE: amalgamator contains pretreatment chamber made in the form of pipeline with pockets, outlet of pipeline being connected with activation chamber through, disposed in chamber hollow, V-shaped connecting pipe perforated in its upper part and bearing bubbling and recycle facilities on its outlet end, whereas, at lower part of pipeline, siphon and siphon-ejector are fastened. Inlet of pretreatment chamber is connected through ejector with mercury feeder and slurry conduit. Amalgamator possesses a system to maintain mercury level in activation chamber. EFFECT: increased slurry particles-mercury contact area. 2 cl, 3 dwg
Patent RU-2055357-C1 (RU)
Inventor: NOSYREV DMITRIJ YA
IPC: G01N29/02
Filed: 1991-07-17
Granted: 1996-02-27
Abstract: FIELD: measurement technology. SUBSTANCE: invention refers to equipment determining continuity of flow of liquid in pipe-lines. Device includes initiator of collapse of gas bubbles in flow of liquid and receiver, amplifier and continuity indicator connected in series. Guiding gear for spinning of flow of liquid is installed in process of measurement of flow of liquid uniaxially to initiator of collapse and has shape of thin-walled tube which diameter is 3-4 times smaller than that of pipe-line. Device is also provided with second receiver of acoustic oscillations, second amplifier and output of first amplifier is linked to input of comparator which output is connected to input of signalling unit. EFFECT: increased precision of determination of continuity of flow of liquid. 1 dwg
Patent RU-2026649-C1 (RU)
Inventor: BONDARENKO ALEKSANDR N
IPC: A61C5/04
Filed: 1991-12-15
Granted: 1995-01-20
Abstract: Изобретение относится к области медицины, а именно к терапевтической стоматологии. Целью изобретения является сокращение сроков лечения и расширение показаний к применению у лиц, страдающих сахарным диабетом. Сущность заключается в том, что на ткань пульпы воздействуют инсулином, осуществляют внутриканально и при помощи десневого фонофореза при определенной мощности и частоте, а канал зуба пломбируют до уровня культи пульпы составом с добавлением 1% нуклеината натрия. 2 з.п. ф-лы, 1 табл.
Patent RU-2078806-C1 (RU)
Title: Weak bitter liqueur
Inventor: YURGUTIS IGOR ANTONOVICH
IPC: C12G3/06
Filed: 1991-12-20
Granted: 1997-05-10
Abstract: FIELD: liqueur and vodka industry. SUBSTANCE: liqueur has the following components, kg/1000 dal ready product: concentrated grape juice 501-506; apple extract 371-375; rowan melanocarpous extract 188-190; rose aqueous-spirituous extract 115-127; haw-thorn aqueous-spirituous extract 62.7-63.3; vanillin 0.495-0.505, and an aqueous-spirituous liquid - the rest amount. EFFECT: enhanced quality of product. 1 tbl
Patent RU-2027253-C1 (RU)
Inventor: GUSEVA LIDIYA E
IPC: H01L21/22
Filed: 1991-12-28
Granted: 1995-01-20
Abstract: Использование: способ изготовления источников для диффузии фосфора в полупроводниковой электронике. Сущность изобретения: способ включает приготовление диффузянта на основе порошка метафосфата алюминия путем добавления к нему порошка пирофосфата циркония в количестве 30 - 50 мас.%, выдержки его при температуре 1040 - 1120°С в течение 20 - 120 мин и охлаждения до комнатной температуры, нанесение диффузанта на термостойкую подложку слоем толщиной 0,4 - 0,8 мкм с последующим отжигом при температуре 1080 - 1170°С в течение 15 - 20 мин, что позволяет повысить температуру эксплуатации до 1100°С и увеличить срок службы источника до 30 ч. 1 табл.
Patent RU-2047161-C1 (RU)
Title: Set for conducting friction tests
Inventor: LODUS EVGENIJ V
IPC: G01N3/56
Filed: 1991-12-17
Granted: 1995-10-27
Abstract: FIELD: testing technology. SUBSTANCE: test set has platform 4, shafts 2 and 7, wheel 11, grips for specimens 9 and counterspecimens 6 and 13. During rotation of shaft 2, friction occurs between specimens 9 and counterspecimens 6 and 13: sliding friction when retainer 14 is engaged and rolling friction when retainer 14 is disengaged. Test set is used for testing various materials and articles. EFFECT: conducting tests at friction of specimen by two opposite sections of lateral surface. 2 cl, 1 dwg
Patent RU-2047829-C1 (RU)
Title: Firing kiln for ceramic articles
Inventor: LITVINOV ANATOLIJ V
IPC: F27B9/16
Filed: 1992-02-14
Granted: 1995-11-10
Abstract: FIELD: manufacture of building materials. SUBSTANCE: kiln has housing 1 with ring-shaped tunnels 4. The transport equipment is made rotor in the shape of vertical posts 10 mounted in circular slotted channel 9 of stationary hearth 8 and fixed on gear wheel 12 by means of cantilevers 11. Wheel 12 is brought into rotation from the electric motor. In the upper part posts 10 are equipped with shelves 16 for articles. The shelves are disposed in tunnel 4 and are shifted during the rotation of gear wheel 12 through the thermal treatment zone disposed in the middle part of tunnel 4. EFFECT: enhanced efficiency. 1 cl, 5 dwg
Patent RU-2023453-C1 (RU)
Inventor: KOLMAKOV SERGEJ A
IPC: A61M27/00
Filed: 1991-07-08
Granted: 1994-11-30
Abstract: Изобретение относится к области медицины, а именно к хирургии. Цель изобретения - повышение эффективности дренирования гнойной раны в любой топографо-анатомической зоне. Сущность устройства заключается в выполнении элемента очистки дренажной трубки в виде кольца, к внутренней поверхности которого фиксированы равноудаленные друг от друга гибкие нити, соединенные в одной точке с гибкой тягой. Один конец гибкой тяги проходит через блок, установленный в центре дистального конца дренажной трубки. Концы гибкой тяги выведены из проксимального торцового отверстия дренажной трубки наружу. 3 ил.
Patent RU-2075743-C1 (RU)
Title: Стенд для испытания несущей системы транспортного средства
Inventor: FASKHIEV KHAKIMZYAN A
IPC: G01M17/00
Filed: 1992-02-25
Granted: 1997-03-20
Abstract: Использование: изобретение относится к устройствам для испытания несущих систем транспортных средств, в частности, рам, платформ, подвесок. Сущность: стенд содержит основание с установленным на нем нагружающем устройством, состоящим из сервогидравлических цилиндров, задней и передней опор, причем передняя опора выполнена сдвоенной и плавающей в вертикальном направлении и связана посредством сферических шарниров с передней нагрузочной балкой, а задняя опора содержит в верхней части с обеих сторон цилиндрические шарниры. Новым в стенде является то, что задняя опора снабжена дополнительно задней нагрузочной балкой, связанной с основанием стенда посредством сферического шарнира, а по концам с верхними цилиндрическими шарнирами через кронштейны, жестко связанные с нагрузочной балкой. 2 ил.
Patent RU-2043269-C1 (RU)
Title: Device for grouping rectangular articles
Inventor: KUZNETSOV MIKHAIL LEONIDOVICH
IPC: B65B5/10
Filed: 1992-01-29
Granted: 1995-09-10
Abstract: FIELD: materials handling; putting articles in transportation containers or film sheathing. SUBSTANCE: device has feeding conveyor 1 with pressure roller table 2, intake platform 3, article row kickoff 4, transfer platform 5, lifting- and-lowering ribbed table 6 for two rows of articles, ribbed sliding wings 7 mounted on levers 8 set into operation by additional cams mounted on sides of can 13 of shaft 11 with one-turn clutch 12. Platform 5 makes it possible to load platform 3 and simultaneously engage clutch 12 of cam shaft 11 for operation of table 6 and wings 7. EFFECT: enlarged operating capabilities. 3 dwg
Patent RU-2021575-C1 (RU)
Title: Pistol
Inventor: NEUGODOV ALEKSEJ S
IPC: F41C3/00
Filed: 1992-03-13
Granted: 1994-10-15
Abstract: FIELD: shooting weapons. SUBSTANCE: pistol has frame 1 and set of barrels 2. Shot-trigger mechanism of the pistol is cock-self-cocking mechanism. Striking switch mechanism 11 for breaking cap of cartridges, which are in barrels, is disposed in cock 9 made of moulding plastic and forced along the external contour. Striker 11 rotates under action of lateral pins of sluggish slider is returned back by spring 13. Barrels are made with conic expansions of the channels in muzzle part. Frame and set of barrels may be made of moulding plastics and forced with steel. EFFECT: simplified design; improved workability. 3 cl, 17 dwg
Patent RU-2057322-C1 (RU)
Title: Process of identification of minerals and mineral identifier
Inventor: MIKHAJLOV SERGEJ G
IPC: G01N21/66
Filed: 1992-01-31
Granted: 1996-03-27
Abstract: FIELD: mineralogy. SUBSTANCE: for identification of minerals without destruction of samples there are used pulse fluxes or trains of pulse-periodic fluxes of electrons which parameters are chosen from conditions of excitation of cathode luminescence, reproducibility of its spectral composition and physical nondestruction of identified sample. Process is realized with the use of special devices - mineral identifiers based on pulse-periodic electron accelerators. In this case for identification of individual mineral its sample is anchored on immobile fixture in path of electron current diaphragmed by metal diaphragm which diaphragms simultaneously light flux of pulse cathode luminescence. For continuous identification of particular minerals in rocks the latter are set on mobile fixture (in the form of conveyer belt) and photographic recording is carried out after rocks are irradiated at their exit from zone of direct action of electron accelerator. EFFECT: improved authenticity of identification of minerals. 3 cl, 4 dwg
Patent RU-2026277-C1 (RU)
Title: Pyrotechnic cord and composition for its making
Inventor: RUSIN DMITRIJ L
IPC: C06C5/00
Filed: 1991-12-20
Granted: 1995-01-09
Abstract: FIELD: explosive substances. SUBSTANCE: cord has pyrotechnic charge made of pyrotechnic composition with combustion rate above 10 mm/s with central channel and axial section for burning arch thickness, at the ratio of axial charge thickness to the difference of external cord diameter and central channel diameter value 0.0182-0.1882. Composition has, wt.-%: plasticizer 48.00-60.03; combustion modifying agent 4-20; fluoroplastic 1.5-2.5; industrial oil 0.5-0.8; centralite 0.25-0.60, and nitrocellulose - the rest. Composition can has additionally 0.10-0.15% organic pigment. Components were mixed in water and rolled and pressed with cord making after water separation. EFFECT: improved method of pyrotechnic composition preparing. 10 cl, 1 dwg, 4 tbl
Patent RU-2039077-C1 (RU)
Title: Method of preparing meliorative soil agent
Inventor: AZANOVA FANIYA G
IPC: C05F11/02
Filed: 1992-02-28
Granted: 1995-07-09
Abstract: FIELD: chemical technology. SUBSTANCE: method involves treatment of milled brown coal (granule size is 3 mm) with 40-50% nitric acid aqueous solution at the mass ratio brown coal nitric acid aqueous solution 1:(0.24-0.30) for 10-20 min following by addition of ammonia aqueous solution to the reaction mixture, stirring reaction mixture for 10-30 min and drying up to residual moisture 10-20% EFFECT: improved method of agent preparing. 3 cl, 1 tbl
Patent RU-2036545-C1 (RU)
Title: Manufacturing process for field coil of electrical machine rotor
Inventor: KRAEV LEONID P
IPC: H02K15/04
Filed: 1992-04-09
Granted: 1995-05-27
Abstract: FIELD: electromechanical engineering. SUBSTANCE: coil turns are formed from copper strips wound on edge with skewed portions on external surface cooled while machine is running; turns are formed on mandrel, coated with epoxy-phenolic varnish; generating surfaces cooled while machine is running located between two top and two bottom turns are covered with antiadhesion fluoroplastic tape; turns are insulated over perimeter with glass fabric tape impregnated with epoxy-phenolic varnish; internal and external generating surfaces are formed to obtain size corresponding to that of complete coil, subjected to heat treatment, molded through height; turn-to-turn insulation is cut at root of skewed points and removed together with antiadhesion coating. EFFECT: facilitated procedure. 2 cl, 5 dwg
Patent RU-2024393-C1 (RU)
Inventor: ATOYAN VAZGEN R
IPC: B28B15/00
Filed: 1992-04-20
Granted: 1994-12-15
Abstract: Использование: производство строительных изделий из горячей бетонной смеси. Сущность изобретения: в установке для изготовления изделий из горячей смеси к выходному газовому патрубку классификатора песка подключен котел-утилизатор, соединенный паропроводами со струйным смесителем и камерой термообработки. Для подогрева питательной воды, подаваемой в котел-утилизатор, служит водяная рубашка активатора. Использование теплоты отходящих продуктов сгорания для выработки насыщенного водяного пара, используемого для перемешивания бетонной смеси и ускоренного твердения отформованных бетонных изделий, позволяет полностью отказаться от мощной компрессорной установки для производства сжатого воздуха и стороннего источника теплоснабжения (например, коктельной). Помимо этого применение пара для перемешивания бетонной смеси позволяет получить однородную по составу бетонную смесь за короткий промежуток времени. 1 ил.
Patent RU-2048923-C1 (RU)
Inventor: ELISEEV NIKOLAJ I
IPC: B03D1/012
Filed: 1992-05-06
Granted: 1995-11-27
Abstract: Использование: обогащение полезных ископаемых, флотация руд.Сущность изобретения: в качестве собирателя для флотации сульфидных медьсодержащих руд вводят смесь кетотетрасульфида и кетодисульфида с формулами:     где R 1 , R 2 , R 3 , R 4 =C 1 -C 4 . 2 табл.
Patent RU-2029834-C1 (RU)
Title: Layered filler
Inventor: LOBYNKIN VLADIMIR NIFEDEVICH
IPC: E04C2/32
Filed: 1992-03-02
Granted: 1995-02-27
Abstract: FIELD: construction materials. SUBSTANCE: layered filler has layers of vertically mounted stacks of in series connected to each other flat and made of flat development relief sheets. New thing is that relief sheets are made as spatial structure, that has saw-shaped strip of rectangular plates, connected with bordering strips of parallelogram type plates. In the case, angle, formed by rectangular plates between each other, is equal to difference of adjacent angles of parallelogram plate and angle, formed by sheets in adjacent layers is different from 0 deg. EFFECT: layered filler is used in production of construction materials. 3 dwg
Patent RU-2031395-C1 (RU)
Title: Float densimeter
Inventor: ONISHCHENKO ALEKSANDR M
IPC: G01N9/20
Filed: 1992-05-14
Granted: 1995-03-20
Abstract: FIELD: measurement technology. SUBSTANCE: float densimeter has float submerged into the vessel filled with liquid. The densimeter is provided with ohmmeter and resilient elastic cord which has wire made of electroconducting rubber, and envelope of the cord is made of isolation resilient elastic material, for example, of rubber or latex. Top end of the cord is attached to lower base of the float for electric contact of the wire with current-conducting float. Lower end of the cord is fastened to base of the vessel, moreover, the wire is insulated from the vessel and liquid. Outputs of ohmmeter are connected with current-conducting vessel and free end of the wire correspondingly. Density of the float and rigidity of the cord correspond to condition of presence of the float at lower part of the vessel at minimal density of liquid and at top part at maximal density of the same liquid. EFFECT: increased precision of measurement. 3 cl, 1 dwg
Patent RU-2009167-C1 (RU)
Inventor: KARAKUTS VLADIMIR N
IPC: C10G59/00
Filed: 1992-05-13
Granted: 1994-03-15
Abstract: Сущность изобретения: высокооктановый бензин получают каталитическим риформингом прямогонной бензиновой фракции. 30 - 90% полученного бензина риформинга фракционируют и выделяют фракцию, выкипающую в интервале 35 - 150 С. Эту фракцию в количестве 40 - 70% смешивают с 10 - 30% бензина каталитического риформинга и до 100% добавляют алкилбензина. 2 табл. 3 пр.
Patent RU-2094156-C1 (RU)
Inventor: KILOV ALEKSANDR S
IPC: B21D45/00
Filed: 1992-06-02
Granted: 1997-10-27
Abstract: Использование: полное исключение ручного труда при удалении гнутых деталей из рабочей зоны пресса для обработки металлов давлением. Сущность: устройство содержит два подвижных и один неподвижный элемент. Подвижный элемент в виде балансира с осью и стержнем, причем последний взаимодействует со вторым подвижным элементом, имеющим боковые поверхности в виде клиновых захватов, а ось балансира перемещается в направляющих пазах неподвижного элемента. При обратном ходе ползуна балансир, трос, прикрепленный к гибочному пуансону вместе с последним совершают цикл возвратно-поступательного движения, обеспечивая удаление детали напровал. 3 ил.
Patent RU-2041655-C1 (RU)
Title: Crab liver preserves
Inventor: SHCHENIKOVA NADEZHDA V
IPC: A23L17/40
Filed: 1992-06-09
Granted: 1995-08-20
Abstract: FIELD: food industry. SUBSTANCE: formulation of this sort of preserves includes ground crab liver treated with cooled 1 to 2 percent solution of acetic acid to be taken in 1 1 ratio and blanched by live steam at temperature of 95 to 100 C and common salt. EFFECT: disclosed invention allows manufacturing product of high nutritional and biological value, extending range of new products and using end product for medicinal purposes.
Patent RU-2068255-C1 (RU)
Title: Device for prophylaxis of cardiovascular diseases
Inventor: PETRUSHEVSKIJ IVAN IVANOVICH
IPC: A61H1/00
Filed: 1992-06-10
Granted: 1996-10-27
Abstract: FIELD: therapeutic physical training and prophylaxis of cardiovascular diseases. SUBSTANCE: the device for prophylaxis of cardiovascular diseases has a seat installed on a support with a seat-back and head- rest connected to a means for creation of load. The support is made in the form of a bed. A bracket is hinge- joined to the bed by means of lugs and axle. A V-slide is installed between the bracket, bed and lugs. The seat with the seat-back and head-rest is made in the form of a stiff bed with side handrails. The bed is secured on a bracket for longitudinal movement and retaining. The means for creation of load has telescopic levers with pedals. The levers are fitted on an axle and furnished with shaped pins for engagement with the slide. EFFECT: enhanced efficiency. 6 dwg
Patent RU-2029437-C1 (RU)
Title: Systolic failure-proof processor of discrete fourier transform
Inventor: KALMYKOV IGOR ANATOLEVICH
IPC: H03M7/18
Filed: 1992-06-15
Granted: 1995-02-20
Abstract: FIELD: computer engineering. SUBSTANCE: systolic failure-proof processor of discrete Fourier transform has two units 4, 6 of conversion of binary code of weight multipliers to systolic failure-proof code, unit 5 of conversion of binary code to systolic failure-proof code, switching-over unit 7, unit 8 of input registers, (n+2) systolic matrixes 9 of Fourier transform by first coordinate with operational units 10, error detector 12, (n+2) adders 13, (n+2) systolic matrixes 14 of Fourier transform by second coordinate with operational units 15, (n+2) units 16 of shift registers with N channels 17 in each unit, unit 18 of conversion of systolic failure-proof code to binary code and synchronization unit 19 connected functionally. EFFECT: increased productivity of processor. 4 cl, 6 dwg
Patent RU-2038792-C1 (RU)
Title: Method for production of lick salt bricks
Inventor: LEVERASH VASILIJ I
IPC: A23K20/195
Filed: 1992-08-19
Granted: 1995-07-09
Abstract: FIELD: agriculture. SUBSTANCE: method involves compacting the salt and solidifying it either by drying or by natural evaporation of moisture. Bricks can be dried either complete with the mold or after taking the moist brick out of the mold. EFFECT: higher efficiency. 2 cl
Patent RU-2068123-C1 (RU)
Title: Unit for precision pivoted joint
Inventor: LAPTEV ALEKSANDR G
IPC: F16C29/00
Filed: 1992-09-07
Granted: 1996-10-20
Abstract: FIELD: mechanical engineering. SUBSTANCE: unit has bearing member secured to the base by way of a cylindrical pivot. A rolling support is secured to the base. The bearing member has a cylindrical projection that is in a contact with the rolling support. The rolling support is spring-loaded in the axial direction with respect to the base and provided with a position controller. EFFECT: enhanced reliability. 2 cl, 2 dwg
Patent RU-2061269-C1 (RU)
Inventor: RASTEGAEV VLADIMIR S
IPC: H01F1/053
Filed: 1992-05-26
Granted: 1996-05-27
Abstract: Изобретение относится к магнитным материалам, в частности к материалам для постоянных магнитов на основе соединений редкоземельных элементов с металлами железной триады. Сущность изобретения: сплав на основе Nd - Fe - B дополнительно содержит цирконий, гафний, ниобий, марганец, кремний, титан. Улучшается технологичность и повышается температурная стабильность сплава к взаимодействию с атмосферой до 330 o С. 2 с. и 2 з. п. ф-лы, 1 табл.
Patent RU-2063049-C1 (RU)
Title: Device for controlling electro-insulation of electric installations
Inventor: ANDRIENKO PETR DMITRIEVICH
IPC: G01R31/66
Filed: 1992-10-06
Granted: 1996-06-27
Abstract: FIELD: protection of personnel against current injury, and protection against emergency of electric installations. SUBSTANCE: device comprises electro-insulation 1, current-carrying section 2, electrode 3, final control element 4 and load-carrying structure 5. EFFECT: higher efficiency. 4 cl, 3 dwg
Patent RU-2028856-C1 (RU)
Title: Grab apparatus to feed and transport blanks to positions of press stamp
Inventor: BYALSKIJ VALENTIN B
IPC: B21D43/05
Filed: 1992-08-31
Granted: 1995-02-20
Abstract: FIELD: metal treatment by pressure. SUBSTANCE: grab apparatus to feed blanks to press has grab arms 21-28 with clamps 29, mechanism of transverse movement to link and unlink arms with drive from press and base in the form of front and rear poles 4, 5, with which arms 21 - 28 are engaged. Apparatus is made as multiserial in compliance with number of rows of stamping and has supporting frame 1, made of four rigidly connected to each other cylindrical poles 5. Side poles 2, 3 are supports for longitudinal transportation of blanks by rollers 6, fixed in bodies 7, 8, mounted on stamping block 9 of press. Body 13 of mechanism of arms transverse movement is fixed on front pole 4 and rear pole 5. One idle and 2 n working arms are mounted with capability to move on both sides of body 13 of mechanism of arms transverse movement ( with n - number of rows of stamping ). Odd and even arms are linked to each other by connecting plates 30 and 31 and are engaged with corresponding profiles of p[air cams to lin k and unlink pairs of arms. Supporting frame 1, due to drive 12, receives reciprocation. Simultaneously driving shaft 14 receives uniform rotation. Together with frame 1 grab arms 21 - 28 receive longitudinal movement. During driving shaft rotation profiles of pair cams act on driving arms 20 and 21, that together with the rest arms are moving along poles in opposite directions. EFFECT: grab apparatus increases productivity of facilities, on which it is mounted and in case of maximum decrease of kinematic pairs number provides decrease of dynamic loadings on drive of grab arms and increases speed of operations. 3 cl, 5 dwg