baber/WOPTO huggingface dataset:
Patent RU-2068057-C1 (RU)
Title: Versatile excavating-conveying tool
Inventor: DONCHUK VLADIMIR YU
IPC: E02F3/24
Filed: 1988-12-28
Granted: 1996-10-20
Abstract: FIELD: earth moving. SUBSTANCE:: excavating-conveying mechanism includes drive butt cutting member with cutting parts and launcher secured to the front part of the butt. Disc 14 of the launcher is secured to the shaft of worm wheel of upper part of gear casing. Working member represents cylindrical ring 21. Outer surface of the cylindrical ring 21 is related to disc 24 through cutters 22 with two-sided cutting edges expending over the limits of butts of carrying members (blades) 23. Gear casing of cutting member drive is made of two hinged parts installed so as to be turned mutually about one another and fixed. When digging trench or recesses of width equal to cutting member width, lower part of gear casing is turned about upper part and stopped by pin 17. Soil guiding mechanism 24 is rigidly connected to sleeve 25 installed on rotary telescopic rod 26 so as to be turned around axis and fixed. EFFECT: high efficiency. 6 dwg
Patent RU-2027263-C1 (RU)
Inventor: PETLIN ANATOLIJ I
IPC: H01R13/68
Filed: 1989-03-30
Granted: 1995-01-20
Abstract: FIELD: electrical engineering. SUBSTANCE: plug has body 1 made of insulator, guiding dowels-protectors 2 and contact members 3. In this case dowels-protectors 2 are hard-mounted in body 1 by means of thread in hole 4 for possible electric contacting with contact members 3. Dowel-protector 2 has tubular member 5, tips 6 and fuse. End 9 of the dowel has a thread. EFFECT: facilitated manufacture. 1 cl, 4 dwg
Patent RU-2028328-C1 (RU)
Title: Rubber mix
Inventor: SHELUDKO GENNADIJ P
IPC: C08L9/02
Filed: 1989-03-06
Granted: 1995-02-09
Abstract: FIELD: production of rubber mix. SUBSTANCE: rubber mix contains: mas. part. for 100 mas.part. of rubber butadiene-nitrile rubber with 26-34 mas. part. of nitrile of acrylic acid of tri-ethylopropylenediene rubber 100; sulfur 1-2; vulcanization accelerator 1.5-4.5; vulcanization activator 5-10; antiager 1-2; antiscarcher 0.3-0.5; dispersant 1-2; filter 50-70; plasticizer 15-30; modifier 0.5-6.0. Introduced as modifier is unsaturated compound with general formula C 13 -C 21  N 2-4 O 2-4  H 18-26 . Rubber mix is prepared by rollers. Modifier is introduced into rubber mix in the process of sulfur introduction. Vulcanization is carried out at 153  ±  1 C for 60 min. Rubber from mix based on SKN-26ASM and SKD (80:20) rubbers features the following characteristics: stress at 300% elongation 7.4-8.2 MPa; tensile strength: at 20 C 14.1-15.8 MPa; at 100 C 8.1-8.7 MPa, elongation 480-520%; rupture strength 52-54 kN/m; rebound elasticity 32%; hardness to TM2 58-59; endurance at multiple tensioning 31-45 thous. cycles; coefficient of thermal aging (140 C x 72 h), strength 0.89-1.03; elongation 0.43-0.6; abradability 26-32 cu. m/tj. EFFECT: higher efficiency. 7 tbl
Patent RU-2020323-C1 (RU)
Title: Vibration isolating joint
Inventor: EGIPKO VLADIMIR N
IPC: F16F15/04
Filed: 1990-03-12
Granted: 1994-09-30
Abstract: FIELD: mechanical engineering; damping vibration in structures. SUBSTANCE: vibration isolating joint has structural members and vibration isolating member connecting them. This member is made of composite material or metal and structural members are made respectively of metal or composite material. Vibration isolating member is connected with structural members by adhesion. EFFECT: enhanced reliability. 8 dwg
Patent RU-2024285-C1 (RU)
Inventor: FATIKHOV VASIL A
IPC: B01D53/14
Filed: 1990-11-29
Granted: 1994-12-15
Abstract: Использование: очистка газов от кислых компонентов в нефтегазовой и химической промышленности. Сущность изобретения: поток газа разделяют на два. Основной поток пропускают через зону предварительной очистки, затем через зону тонкой очистки и выводят из верха абсорбера. Поток абсорбента делят на два, первый поток смешивают в эмульгаторе с неосновным потоком газа и полученной газожидкостной эмульсией заполняют зону предварительной очистки. Второй поток абсорбента подают в зону тонкой очистки. При очистке газа от CO 2  водой производительность процесса составляет 30 м 3 /ч при расходе воды 200 л/ч и степени очистки 68% при начальном содержании CO 2  , равном 1 об.%. 1 ил., 1 табл.
Patent RU-2011564-C1 (RU)
Title: Device for power supply of rolling stock in subway depot
Inventor: GUDIN ALEKSANDR I
IPC: B60L5/00
Filed: 1990-12-17
Granted: 1994-04-30
Abstract: FIELD: transport facilities. SUBSTANCE: device comprises contact bus line, contact rail, power cable, current-collecting carriage, car current collector in the form of electric connector with electromagnet inside. Ferromagnetic core of said magnet insulated from car body carries contact element of connector. One of electromagnet winding terminals is connected to car body via adjoining circular contacts of which the first one is positioned on inner surface of connector body whereas the second one, in recess of thicker cylindrical portion of core. EFFECT: improved design. 4 dwg
Patent RU-2007402-C1 (RU)
Title: Method of 2-azabicyclo(2,2,1)hept - 5 - en - 2 - acetic acid derivatives synthesis
Inventor: DEVID ANDRE KORTES
IPC: C07D209/52
Filed: 1991-02-14
Granted: 1994-02-15
Abstract: FIELD: organic chemistry. SUBSTANCE: product - derivatives of 2-azabicyclo - (2,2,1) hept - 5 - en - 2 - acetic acid of the general formula   (1), where R 3 -R 8  - H or C 1 -C 4 -alkyl; Y - CN, C(O)OR-group, C(O)N(R 1 )(R 1 ) at R and R 1  - H or C 1 -C 4 -alkyl, independently. Reagent 1: compound of the general formula 2: where Y - see above. Reagent 2: H 2 N-CH 2 -Y formaldehyde and cyclopentadiene or methylcyclopentadiene. Synthesized compounds are used as intermediates for synthesis of N-phosphonemethylglycine, which is herbicide and regulator of plant growth. EFFECT: improved method of synthesis.
Patent RU-2009552-C1 (RU)
Title: Acoustic resonator for clavichord tab musical instrument
Inventor: PETRUSHEVSKIJ GEORGIJ S
IPC: G10D11/02
Filed: 1990-12-26
Granted: 1994-03-15
Abstract: FIELD: musical instruments manufacturing. SUBSTANCE: valve aperture is making from lavsan-type material. EFFECT: better sounding of musical instrument. 2 cl, 2 dwg
Patent RU-2013602-C1 (RU)
Title: Two-stroke free-piston internal combustion engine
Inventor: DIDOK ALEKSEJ A
IPC: F02B75/02
Filed: 1991-01-09
Granted: 1994-05-30
Abstract: FIELD: automotive engineering. SUBSTANCE: casing 1 of the engine accommodates cylinders 2, 3 and pistons 4, 5. The energy of moving pistons is converted into load through a power hydraulic transmission including reactive turbines 7, 8 and power take-off gear 17. EFFECT: enhanced efficiency in operation. 1 dwg
Patent RU-2009925-C1 (RU)
Title: Interlocking mechanism for hopper car hatch cover control panel
Inventor: VLADIMIROV DMITRIJ V
IPC: B61D17/16
Filed: 1991-03-28
Granted: 1994-03-30
Abstract: FIELD: railway transport. SUBSTANCE: interlocking mechanism of hopper car hatch cover control panel has pipelines 2 connected with supply line 1 by means of twin disconnecting cocks 3. Cock control handles 4 have holes 5 to let pass hooks 6 of locking rod 8 installed in guides 7 and engaging in transportation position with stop 9 kinematically coupled with stop 10. It has also vertical rod 14 and horizontal rod 15 with detents 14 hinge-connected through bell-crank 11 and installed in guides 12 and 13, respectively. Stop 9 is made fast on vertical rod 14. Stop 10 is made in form of hook and is secured on horizontal rod 15. Required sequence of operations of operator which controls discharge of loose cargo 20 from hopper car is provided at equal travels of horizontal rod 15 and vertical rod 14. EFFECT: enhanced reliability. 5 dwg
Patent RU-2051435-C1 (RU)
Inventor: KAMENETSKIJ YURIJ M
IPC: H01F41/04
Filed: 1991-04-01
Granted: 1995-12-27
Abstract: Использование: для изготовления обмоток малогабаритных электродвигателей. Сущность изобретения: устройство содержит оправку, на которую укладывается наматываемый провод. Провод удерживается на оправке упорами, которые прижаты к оправке рессорами. Оправка закреплена на ведущем валу. Для перемещения упоров применяются трубки, жестко связанные со звездочками, выступы, связанные с упорами, ролики и штифты. С помощью сопла, через которые подается горячий воздух, укладываемый провод закрепляется на вращающейся оправке. 2 ил.
Patent RU-2022705-C1 (RU)
Inventor: SHINSKIJ OLEG I
IPC: B22D46/00
Filed: 1991-04-22
Granted: 1994-11-15
Abstract: Изобретение относится к литейному производству и может быть использовано для определения положения и конфигурации потока металла в полости литейной формы при исследовании литейных процессов и освоении литейной технологии. Цель изобретения - получение объемной информации о фронте потока металла в реальном масштабе времени и повышение точности контроля. Указанная цель достигается тем, что устройство непрерывного контроля положения и конфигурации потока металла в литейной форме, включающее датчики 2 с высоким электросопротивлением, соединенные с источником питания и регистрирующим прибором, дополнительно содержит сбалансированные мосты 3, подключенные к аналоговому коммутатору 4, соединенному в последовательную цепь с масштабирующим усилителем 5, аналоговым цифровым преобразователем /АЦП/ 6 и ЭВМ 7, причем датчики 2 включены в плечи мостов и расположены в полости формы с шагом 1 на всю ее высоту, а регистрирующий прибор выполнен в виде графопостроителя 8. Кроме того, в устройстве контроля положения и конфигурации фронта потока металла в литейной форме датчики расположены в полости формы 1/6 - 1/2 толщины отливки. 1 з.п. ф-лы, 2 ил. 1 табл.
Patent RU-2020603-C1 (RU)
Title: Device for training operators
Inventor: KUDRYASHOV NIKOLAJ I
IPC: G09B9/00
Filed: 1991-05-28
Granted: 1994-09-30
Abstract: FIELD: automatics; computer technology. SUBSTANCE: device has clock pulse generator 1, code former 2, standard setting unit 3, time setting unit 4, random pulse sequences forming unit 5, control unit 6, unit 7 for showing information, registration unit 8, comparison units 9 and 10, operator's desk. Invention provides capability of forming patterns with specific lengths. It is possible to change one element in random order when showing data subsequently. If correct answers are achieved, time of showing may be reduced and length of pattern may be increased, that results to exposure of level of skills of intellectual development and ability for training. EFFECT: widened didactic capabilities. 4 cl, 12 dwg
Patent RU-2012250-C1 (RU)
Title: Surgical draining apparatus used in application of compression anastomoses to hollow organs
Inventor: BORISENKO VALENTIN A
IPC: A61B17/115
Filed: 1991-03-28
Granted: 1994-05-15
Abstract: FIELD: medical engineering; surgery. SUBSTANCE: when applying apparatus to tissue, threads 9 and 13 were positioned inbetween tightened contact sutures and connecting rings 2 and 3 were joined by exerting pressure via tissue to allow uniform compression. During the first 48 h of early post-operative period, tube 1, first clamping member 4 and second clamping member 48 resolved to relieve connecting rings 2 and 3. Nonnecrotized tissues and necrotic fluid were drained via recesses 50 and 7, drain passages and cutouts, side drain holes 17, gaps in tube 1, and bushings 40. EFFECT: effective drainage. 5 cl, 18 dwg
Patent RU-2067748-C1 (RU)
Title: Cone checking device
Inventor: RACHKOV BORIS I
IPC: G01B5/24
Filed: 1991-06-24
Granted: 1996-10-10
Abstract: FIELD: measurement technology. SUBSTANCE: cone checking device is intended to check angle of cone. With movement of measurement mechanism mobile contacts 20 move together with braces. When mechanism is balanced they can be either closed or open with immobile contacts. Depending on closing or non-closing of pairs of mobile and immobile contacts proper lamps of light annunciator go on signalling whether checked part is good or rejected. EFFECT: simplified design, increased operational reliability. 1 dwg
Patent RU-2030927-C1 (RU)
Title: Device for imparting vibrations to object under investigation
Inventor: KHILCHENKO NIKOLAJ F
IPC: B06B1/04
Filed: 1991-06-27
Granted: 1995-03-20
Abstract: FIELD: equipment for imparting vibrations to objects. SUBSTANCE: double-stroke electromagnetic vibration exciter has N pairs of coils 10 positioned in casing 1 on movable bases 3 in symmetry relative to axis of flat pulling anchor. Coils are connected to self-oscillating circuit with feedback sensor formed as inductive anchor vibration sensor 20. Vibration exciter flexible system has several pairs of flexible members-springs 9, which are positioned in symmetry with respect to anchor axis, with one end of each spring being supported by movable base and other end abutting supports 7, which are positioned in movable bases 3. Rigidity of flexible system is adjusted by mechanisms, which regulate spring-loading by displacing movable bases. These mechanisms are mounted on casing 1. EFFECT: increased efficiency in creating vibrating force. 2 dwg
Patent RU-2001489-C1 (RU)
Inventor: BODIK MIKHAIL K
IPC: H02K41/03
Filed: 1991-07-18
Granted: 1993-10-15
Abstract: Использование; изобретение относитс  к электротехнике , а именно к электромагнитным механизмам . Сущность изобретени  электродвигатель содержит  цилиндрический статор, включающий установленные  соосно три электромагнита, первый из  которых  вл етс  т говым 1. второй - стопорным 2,  а третий - управл емым т говым 3 Подвижный   корь электродвигател  выполнен в виде  корей 4  и 5 первого и третьего электромагнитов соответственно , соосно соединенных стержнем 6, на котором установлена с возможностью перемещени  вдоль  него на величину шагового зазора мэгнитопрово-  д ща  втулка 7,  вл юща с   корем второго электромагнита  2 исходное положение которой задаетс  с помощью пружины 8 На взаимодействующих  поверхност х втулки 7 и электромагнита 2 выполнены  поперечные зубцы Якорь 5 т гового  электромагнита 3 выполнен в виде цилиндра с  центральным конусообразным вырезом. Цель  изобретени  достигаетс  за счет того, что третий  электромагнит 3, благодар  специальной конструкции   кор  5 выполн ет ка т говую функцию вместе  с пеовым электромагнитом 1 при «ш мом ходе, так и  функцию регулирующего стопорени  при управл емом  обратном перемещении  кор  1 за ф-лы,  1 ип
Patent RU-2016351-C1 (RU)
Title: Fluorescent lighting fitting
Inventor: SHCHEPOCHKINA YULIYA A
IPC: F21K2/08
Filed: 1991-08-15
Granted: 1994-07-15
Abstract: FIELD: lighting engineering. SUBSTANCE: current is supplied to radiator 4 through base 1 and electrodes 2. Electric field is built at n surface 5. Under action of electric field fluorescent material coating radiant flux which illuminates object through bulb 3. EFFECT: enlarged operating capabilities. 3 dwg
Patent RU-2051986-C1 (RU)
Title: Способ получения антикоррозионного полимерного покрытия
Inventor: ULITSKIJ VLADIMIR A
IPC: B29C33/60
Filed: 1991-04-22
Granted: 1996-01-10
Abstract: Изобретение относится к получению антикоррозионного полимерного покрытия на поверхность металлического изделия плазменным напылением полимерного слоя на основе вторичного полиэтилена (ВПЭ) и 5 (6)-амино-2(П-аминофенил)бензимидазол (БИА) в качестве стабилизатора. Процесс осуществляют при температуре основы 100 - 220 o С в течение 0,01 - 0,5 с в среде инертного газа. Полимерная композиция дополнительно содержит сажу ДГ - 100 и низкомолекулярный полиэтилен (НМПЭ) в следующем соотношении, мас.ч.: ВПЭ - 100; БИА - 0,1 - 0,2; ДГ - 100 - 1,0 - 20; НМПЭ - 0,1 - 5,0. 1 табл.
Patent RU-2008181-C1 (RU)
Title: Installation for working articles by abrasive material flow
Inventor: LYSENKO ANATOLIJ G
IPC: B24C3/00
Filed: 1991-07-03
Granted: 1994-02-28
Abstract: FIELD: grinding or polishing equipment. SUBSTANCE: installation has abrasive material collecting bunker 17 in which no less than one wall is mounted at an angle to the horizon equal or smaller than the angle of internal friction of the abrasive material. Baffle 19 is positioned under the wall at an angle of 20-25. EFFECT: improved structure. 4 dwg
Patent RU-2025558-C1 (RU)
Inventor: SEROGODSKIJ ALBERT V
IPC: E01H13/00
Filed: 1991-08-28
Granted: 1994-12-30
Abstract: Использование: в средствах для рассеивания туманов преимущественно над взлетно-посадочными полосами аэропортов, экваториями морских и речных портов, карьерами и т.д. Цель изобретения - повышение эффективности работы и упрощение конструкции. Сущность изобретения: истекающий из сопла-форсунки газообразный охлажденный азот вызывает появление центров конденсации водяного пара, находящегося в воздухе. Пар выпадает в виде осадков, при этом исчезает туман, находящийся в воздухе. Новым является то, что источник холода выполнен в виде заполненного жидким азотом сосуда Дьюара, снабженного герметичной крышкой, на которой смонтированы редукционный клапан, приемный трубопровод и инициатор начала работы, выполненный в виде стержня, прикрепленного к внутренней стороне крышки, на котором с возможностью продольного перемещения смонтирован аккумулятор тепла. Выход приемного трубопровода соединен со спиральным теплообменником, соединенным с соплом-форсункой, причем вокруг него смонтировано пассивное сопло. Устройство имеет простую конструкцию и эксплуатацию, не загрязняет окружающую среду. 2 з.п. ф-лы, 2 ил.
Patent RU-2003462-C1 (RU)
Inventor: KOLESNIKOV VLADIMIR M
IPC: B28B7/02
Filed: 1991-10-24
Granted: 1993-11-30
Abstract: Сущность изобретени  матрица содержа разъемный корпус с вкладышами на его внутренних  стенках Фланцы разъемных частей снабжены пакетом  прокладок В стенках выполнены выступы, в  которых размещены винтовые механизмы регулировани  положени  вкладышей вдоль стенок корпуса  Один из торцов вкладышей выполнен со скосами  с углом больше угла самоторможени  Рабочие  поверхности вкладышей с нижней стороны  матрицы выполнены со скосом под углом 05.2&deg;  4ш
Patent RU-2062925-C1 (RU)
Title: Two-flow gear transmission
Inventor: BYKOV VLADIMIR A
IPC: F16H3/20
Filed: 1991-07-08
Granted: 1996-06-27
Abstract: FIELD: mechanical engineering. SUBSTANCE: transmission has housing 1, driving shaft 4 and driven shaft 6 with gear wheels 5,7, two intermediate shafts 8,9 with gear wheels 10,11 and 12,13 that interact with the gear wheels 5,7 of the driving and driven shafts, and mechanism for balancing a load between the wheels. The driving and driven shafts are mounted on pad 2,3 inside the housing. The balancing mechanism is made up as bearing unit 2 mounted on driven shaft 4 and consisting of barrel 14, sleeve, and mechanism for moving the sleeve, which are mounted coaxially on driving shaft 4 in series. The mechanism for moving the sleeve is made up as the pair of movable wedges with opposite slope. There are guides inside housing 1. The guides are perpendicular to the split plane. The sleeve is mounted for permitting movement in the guides. Sleeve 14 is eccentric and mounted for permitting rotation with respect to the sleeve. EFFECT: improved design. 2 cl, 3 dwg
Patent RU-2039716-C1 (RU)
Title: Glass
Inventor: PAVLUSHKINA TATYANA K
IPC: C03C4/00
Filed: 1991-12-18
Granted: 1995-07-20
Abstract: FIELD: glass industry. SUBSTANCE: glass has, wt.-% silicon oxide 64-72; aluminium oxide 2.5-7.5; calcium oxide 3.5-6; sodium oxide 14.5-19; fluoride 3.5-6.5. Glass properties: whiteness is 0.76-0.93, opacifying phase is 29.1-42.3% Glass is used for lighting engineering article making. EFFECT: enhanced quality of glass. 2 tbl
Patent RU-2031853-C1 (RU)
Title: Method for regeneration of sulfocationite
Inventor: FERAPONTOV NIKOLAJ B
IPC: C02F1/42
Filed: 1991-09-17
Granted: 1995-03-27
Abstract: FIELD: ion-exchange technology. SUBSTANCE: sulfocationite of Ca or of mixed Ca-Mg-Na form is regenerated into hydrogen form. The process is carried out in reflux ion-exchange column with the help of 4-6 M HCl solution. Hydrochloric acid being used as regenerant is constantly fed from top of the column to its bottom, and ionite is fed from bottom to top, ratio of their streams being 1:(1.1-1.05). Sulfocationite regenerated to 93 ± 24 % is withdrawn from the top of the column. Said sulfocationite has degree of regeneration 90-93 %, thus prepared concentrated solution CaCl 2 ,MgCl 2 ,NaCl has no impurities of HCl. EFFECT: increases degree of regeneration, provides complete utilization of regenerant. 1 dwg
Patent RU-2056840-C1 (RU)
Inventor: PREOBRAZHENSKIJ VIKTOR N
IPC: A61P1/04
Filed: 1992-03-03
Granted: 1996-03-27
Abstract: FIELD: medicine. SUBSTANCE: method involves injecting 5-10 ml of freshly prepared leukocytic mass through a special needle during gastroscopic examination procedure each second week. The treatment is preceded by blood exposition to ultra violet radiation beams by means of Isolde device with following reinfusion 2-3 times with 3-5 days pauses. EFFECT: accelerated treatment course; reduced risk of relapses.
Patent RU-2009737-C1 (RU)
Title: Three rollers screw rolling mill and its basic equipment mill
Inventor: ROMANTSEV BORIS A
IPC: B21B19/02
Filed: 1992-01-13
Granted: 1994-03-30
Abstract: FIELD: metal rolling. SUBSTANCE: rollers of three rollers screw rolling mill are set at low angle of rolling ( 10 -30 deg. ) and with significant tangential shift ( 0.3 - 0.75 of medium diameter of the rollers). There are additional design solutions for similar scheme of the rolling mill, that allow to increase significantly accuracy of the pass setting due to relieving adjusting mechanisms of rolling pressure and increases sensitivity of the mechanisms. EFFECT: basic equipment of the screw rolling mill increases rolling pass setting accuracy and sensitivity of its adjusting mechanism. 4 cl, 8 dwg
Patent RU-2015753-C1 (RU)
Title: Method of steel sheet making
Inventor: SHMATKO MARGARITA N
IPC: B21B3/00
Filed: 1992-02-06
Granted: 1994-07-15
Abstract: FIELD: ferrous metallurgy. SUBSTANCE: steel has carbon, nickel, chrome, manganese, nitrogen and, additionally, cerium at the following ratio of components, wt.-%: carbon 0.08-0.12; nickel 6.5-7.5; chrome 16.6-17.5; manganese 0.8-1.2; cerium 0.03-0.06; nitrogen 0.04-0.06, and iron - the rest. To make steel sheet hot and cold rolling are carried out, and final cold rolling is carried out with relative deformation 55-70%. EFFECT: increased output of method. 1 tbl
Patent RU-2036998-C1 (RU)
Title: Grinding apparatus working unit
Inventor: SUKHAREV SERGEJ D
IPC: D21B1/04
Filed: 1992-03-19
Granted: 1995-06-09
Abstract: FIELD: pulp and paper industry. SUBSTANCE: working unit has worm, turns of which have cuttings with first and second in direction of worm rotation side planes. First plane is turned relatively to its rotation axis, that is perpendicular to axis of worm, in direction of discharging branch pipe. Second side plane is turned at angle of 5 - 20 deg.. EFFECT: grinding apparatus working unit is used in pulp and paper industry. 2 cl, 4 dwg, 1 tbl
Patent RU-2031323-C1 (RU)
Title: Method of controlling electric drive of ventilation set
Inventor: BASTRON ANDREJ V
IPC: F24F11/04
Filed: 1992-03-26
Granted: 1995-03-20
Abstract: FIELD: electric engineering. SUBSTANCE: any air consumer is connected to air duct through the branch provided with a shutter according to random law. Position of each shutter is fixed by end switches and control parameter of electric drive control unit is formed according to positions of the end switches. Total current is used as control parameter; the current passes through additional resistors. Resistors are switched into control circuit by means of end switches. Current passing through each resistor is formed proportionally to discharge through corresponding branches provided with shutters. Capacity of ventilation set is changed proportional to the total current by means of changing number of revolutions of electric engine. EFFECT: improved efficiency. 1 dwg
Patent RU-2004050-C1 (RU)
Inventor: VOKHMYANIN VLADISLAV G
IPC: H02K33/00
Filed: 1992-04-02
Granted: 1993-11-30
Abstract: Использование: электротехника. Сущность изобретени : электромагнитный вибратор содержит  обмотку управлениа расположенную на немагнитной  направл ющей 2, внутри которой расположена  пружина из ферромагнитного материала, выполн юща  роль  кор  3. 1 ил.