baber/WOPTO huggingface dataset:
Patent RU-2029124-C1 (RU)
Title: Method and device for control of fuel supply into internal combustion engine
Inventor: KAMENEV VLADIMIR F
IPC: F02D41/06
Filed: 1989-07-05
Granted: 1995-02-20
Abstract: FIELD: engine engineering. SUBSTANCE: composition of mixture, which is fed to cylinders, is maintained at the extreme poor level by generating main and correction control signals. A feedback parameter, which is proportional to scattering of extreme pressure fluctuations of exhaust, is used for generating the correction signal. Device has unit for control of fuel supply, signal shaper of a parameter measured, unit for detecting quasi-steady-state regime of operation, and unit for calculation of scattering of the extreme values of pressure fluctuations. EFFECT: enhanced accuracy of fuel batching, enhanced efficiency, and decreased toxicity. 6 cl, 7 dwg
Patent RU-2010691-C1 (RU)
Title: Press for magnetic circuit carcass holding during welding
Inventor: MARKO DANI
IPC: B23K37/04
Filed: 1990-03-16
Granted: 1994-04-15
Abstract: PCT No. PCT/EP88/00809 Sec. 371 Date May 11, 1990 Sec. 102(e) Date May 11, 1990 PCT Filed Sep. 7, 1988 PCT Pub. No. WO89/02338 PCT Pub. Date Mar. 23, 1989.A press for welding magnetic yokes comprises first and second frames movable toward and away from each other, on which there are defined respective confronting and parallel pressure surfaces (12, 35), a motive means (50) acting between the frames (11, 30) to produce the aforesaid movements, and a presser (14, 36) associated with each of the pressure surfaces (12, 35) to define a saddle-piece for receiving the yoke (3). Between at least one of the pressers (14, 36) and its respective pressure surface (12, 35) there intervening an elastically deformable pillow (39) functioning as an adjuster of the deformation under load undergone by the corresponding pressure surface (12, 35). This pillow is composed of an elastic material which has a behavior under load, within a predetermined range of specific loads, that approaches a hydrostatic behavior, that is, such that for a given increase in the deformation there corresponds a proportionally low pressure increase.
Patent RU-2060124-C1 (RU)
Inventor: ZAKHAROV NIKOLAJ I
IPC: B23K9/04
Filed: 1989-12-18
Granted: 1996-05-20
Abstract: FIELD: engine construction. SUBSTANCE: method involves preliminarily heating internal combustion engine piston work piece; melting a portion of piston groove by constricted arc; introducing powderlike alloying metal into molten metal bath, with metal powder being supplied to constricted arc active cathode spot zone; maintaining molten metal volume in bath at constant level and uniformly reducing constricted arc current by 10-30%. EFFECT: increased wear-resistance and strength of piston groove zone. 1 tbl
Patent RU-2024226-C1 (RU)
Title: ПРОИЗВОДНЫЕ S- β -ТИОАКРИЛАМИДОВ И КОМПОЗИЦИЯ ДЛЯ ПРЕДОТВРАЩЕНИЯ ИЛИ ИНГИБИРОВАНИЯ РОСТА БАКТЕРИЙ
Inventor: DEVID RICHARD EMIK
IPC: A01N43/40
Filed: 1990-07-27
Granted: 1994-12-15
Abstract: Использование: продукт, химическое средство защиты растений. Сущность: производные S -b тиоакриламидов ф-лы I, в которой R 1 - C 5 -C 10  - алкил, C 5 -C 7  - циклоалкил, фенил, фенэтил, бензил, где арил возможно замещен хлором; Z 1  и Z 2  каждый независимо представляет водород, хлор, C 1 -C 4 - алкил, W 1   и  W 2  каждый COR 2  и COR 3 , где R 2 -C 1 -C 8 - алкил, C 1 -C 4  - алкоксигруппа, C 1 -C 4 -алкиламиногруппа; R 3 -C 1 -C 6 -алкил, C 1 -C 4 -алкоксигруппа, C 3 -C 13 -алкиламиногруппа, циклопропиламиногруппа; каждый возможно замещен одним или более хлором, метилом, метоксигруппой, нитрогруппой, цианогруппой; фениламиногруппа, возможно замещенная одним или более хлором, метилом, метоксигруппой или нитрогруппой; бензиламиногруппа, цианопентиламиногруппа, аминоаллил, аминотиенил, аминотиазонил, аминопиридил, аминоэтилпиридил, аминопиридинил, N-метилпиразолил, аминоморфолил, аминопропилморфолил, и композиция для предотвращения или ингибирования роста бактерий с использованием соединения ф-лы I в количестве 1-90 мас.%, сельскохозяйственно применимый носитель - остальное. 2 с. и 5 з.п. ф-лы, 4 табл. Структура соединения I - см. рис.
Patent RU-2007545-C1 (RU)
Inventor: KRIST ALEKSEJ E
IPC: E21B21/08
Filed: 1990-12-04
Granted: 1994-02-15
Abstract: FIELD: mining industry. SUBSTANCE: part of flow of treated drilling fluid is transformed into high-speed jet for action on rock which includes active chemical substances in its composition. Circulation of drilling fluid in borehole is organized in compliance with direct flushing circuit. Concentration of active chemical substances in upward current is checked and if it exceeds established values action on rock of high-speed jet is stopped. When this concentration diminishes action of jet is resumed. Use of invention makes it possible to control process of treatment of drilling fluid while stripping rock masses lying below and having different properties or while drilling boreholes. EFFECT: improved drilling efficiency.
Patent RU-2056876-C1 (RU)
Title: Method for treating malignant tumors
Inventor: SHENTAL VIKTOR V
IPC: A61N5/10
Filed: 1990-12-18
Granted: 1996-03-27
Abstract: FIELD: medicine. SUBSTANCE: method involves cooling tumor 5 min before the treatment and irradiating the cooled tumor. EFFECT: enhanced effectiveness of treatment.
Patent RU-2093257-C1 (RU)
Title: Device for mixing or homogenization of liquid and fluid medium and method of mixing or homogenization of liquid and fluid medium
Inventor: FRENK MON
IPC: B01F15/00
Filed: 1990-05-04
Granted: 1997-10-20
Abstract: FIELD: processes of multiphase mixing, in particular, mixing of two and more fluid materials. SUBSTANCE: liquid supplied to vessel forms a reservoir from which it is sucked through Venturi tube. Supplying pipe or pipes transport the other liquids and/or gases from separate sources or from volume above liquid reservoir into Venturi tube for mixing with liquid. Supplying pipes may pass through reservoir and be perforated for maintaining level of reservoir liquid. Connected with Venturi tube are pressure pickups for measurement of flow and densitometer to determine velocity of mass transfer of gas and liquid phases. Apparatuses may be enclosed in cartridge for installation in socket of subwater plant. EFFECT: higher efficiency. 25 cl, 6 dwg
Patent RU-2042540-C1 (RU)
Title: Driver's seat of garden tractor
Inventor: VITTORIO VISENTINI
IPC: B62D49/08
Filed: 1991-06-11
Granted: 1995-08-27
Abstract: FIELD: agricultural machinery; garden tractors. SUBSTANCE: tractor has front-mounted control and instrument unit. Seat is arranged between rear wheel fenders and is secured on support device. The latter can be displaced between lower operating position and upper position. Thanks to it access to longitudinal shaft of tractor transmission is provided. EFFECT: facilitated servicing. 3 cl, 5 dwg
Patent RU-2014093-C1 (RU)
Title: Hemosorption device
Inventor: MIKULENOK IGOR O
IPC: A61M1/36
Filed: 1991-01-08
Granted: 1994-06-15
Abstract: FIELD: medicine instrument engineering. SUBSTANCE: device has sectioning body 1 with fibre-type hemosorbent 2 made like ellipsoidal braid placed in every section of body. Coverings 3 and 4 with branch pipes 5 and 6 are jointed tightly to body ends faces. Body sections are separated by filtering partitions 7. Clamping elements 8 made like perforated truncated cone are fixed at every fibre braids ends so its bigger bases to be directed to braid center. Braids are laying out along ellipsoidal curve which big axis coincides with body axis. Clamping elements perforation provides blood free flow passage through body 1 entire cross-section as well as reliable fixing of hemosorbent 2. EFFECT: more simple and reliable construction, better efficiency of operation. 2 dwg
Patent RU-2028307-C1 (RU)
Inventor: AKUTIN MODEST S
IPC: C08F110/14
Filed: 1991-07-22
Granted: 1995-02-09
Abstract: Сущность изобретения: последовательно вводят углеводородный растворитель, компоненты катализатора, трис-(триметилсилокси)фенилсилан и мономер. Катализатор состоит из трихлорида титана и диэтилалюминийхлорида. Трис-(триметилсилокси)фенилсилан вводят в количестве 0,28 - 0,57 мас.% на мономер, его конечное количество в продукте составляет 0,25 - 0,32 мас.%. 2 табл.
Patent RU-2005333-C1 (RU)
Title: Садово-огородные вилы
Inventor: PLYASKIN IVAN F
IPC: A01B1/02
Filed: 1991-02-26
Granted: 1994-01-15
Abstract: Использование: в качестве садового инструмента  Сущность изобретени : зубчатый рабочий  орган шарнирно смонтирован на оси державки 10.  Механизм поворота зубчатого рабочего органа выполнен  в виде подпружиненного рычага 7. На оси державки 10 закреплены лапы 11с п той 12. Лапы  11 выполнены конусными. Основание рабочего органа  выполнено в виде балки 1, котора  закреплена  на оси посредством петель. Зубь  2 закреплены с  внутренней стороны балки 1. К балке 1 прикреплен  сектор 4, на котором размещена пружина 5. на  верхнем конце снабженна  плитой 8. Между шайбой  6 и плитой 8 на рычаге установлены направл ющие . Зубь  2 выполнены по длине конусными, а  в поперечном сечении - треугольными. 2 ил.
Patent RU-2020234-C1 (RU)
Title: Method for reinforcing of reinforced concrete hollow-core slabs
Inventor: LAZOVSKIJ DMITRIJ N
IPC: E04G23/02
Filed: 1991-04-22
Granted: 1994-09-30
Abstract: FIELD: construction. SUBSTANCE: method includes making holes in hollow-core reinforced concrete slab in support zones from atop slab and from below in slab span between adjacent hollows. Between holes on slab lower surface, a groove is made. Then, guides are installed with inclination from hole in support zone to hole in span, and flexible reinforcement is introduced. Guides are withdrawn, and stops are installed on slab upper surface, and spacer is placed into groove on slab lower surface, and reinforcement is stressed. EFFECT: higher efficiency. 2 dwg
Patent RU-2017690-C1 (RU)
Title: Process for benefication of vein quartz
Inventor: KORAGO ALEKSEJ A
IPC: C03B1/00
Filed: 1991-05-14
Granted: 1994-08-15
Abstract: FIELD: technology of benefication of minerals. SUBSTANCE: the process for benefication of vein quartz comprises mechanical crushing of rock, washing it with water, heating to 1000-1100 C, thermal crushing, grinding, screening into the working fraction, magnetic separation, flotation, chemical treatment, washing, filtration, drying and calcination; prior to heating the crushed vein quartz to 1000-1100 C, the thermal pretreatment is conducted at 200-250 C and the acid pretreatment is conducted with 20-25% hydrochloric acid for 1.5-2.0 hr followed by washing to neutral reaction. EFFECT: improved properties of vein quartz. 2 tbl
Patent RU-2019876-C1 (RU)
Title: Method of generating of field electron emission
Inventor: EGOROV NIKOLAJ V
IPC: H01J1/30
Filed: 1991-05-27
Granted: 1994-09-15
Abstract: FIELD: generation of electron fluxes. SUBSTANCE: with application of voltage to cathode manufactured from silicon of p-type of conductance, volt-ampere characteristic of emitter is registered and with its account for it operational voltage is set within range U 1 =U op ≅ U 2  corresponding to section of volt-ampere characteristic for which condition (lgI 2 -lgI 1 )/(I/U 1 -1/U 2 )5·10 4  is realized, where U 1,2  are voltages ensuring generation of average corresponding emission currents (I 1,2 ). From data of energy spectrum in total number of emitted electrons 20% fall at pairs of electrons, 15% drift in groups of 3. Emission of correlated electrons results in increase of peak values of emission current. EFFECT: improved efficiency of generation of electron fluxes. 3 dwg
Patent RU-2043171-C1 (RU)
Title: Sizing screen
Inventor: KHABLO GRIGORIJ PETROVICH
IPC: B07B1/22
Filed: 1991-07-25
Granted: 1995-09-10
Abstract: FIELD: materials size sorting. SUBSTANCE: sizing screen has grating drum, formed by different height fire-grates from unloading tray side and by cables located between fire-grates. Cables are fixed to shell from unloading tray side by shock-absorbers and from loading tray side rigidly. EFFECT: simplified design. 3 dwg
Patent RU-2040519-C1 (RU)
Title: Cyclic imino-derivatives, their isomer mixtures, enantiomers, diastereomers or physiologically tolerated salts showing antithrombotic action
Inventor: FRANK KHIMMELSBAKH
IPC: A61K31/402
Filed: 1991-11-01
Granted: 1995-07-25
Abstract: FIELD: organic chemistry. SUBSTANCE: product: cyclic imino-derivatives of the general formula B-X-A-Y-E where A nonsubstituted or substituted 2-pyrrolidinone or pyrroline-2-one; B nonsubstituted or substituted amino, aminomethyl or amidino-groups; or two nitrogen atoms of amidino-group were bound with ethylene group, cyano, trimethylammonio, guanidino or guanidinomethyl-group; Y-E substituted unbranched C 2-5 -alkyl substituents of which can be substituted; X a group of the formula -X 1 -X 2 -X 3 -X 4 -X 5 -, where X 1  means bond, methylene or ethylene. If methylene is bound with nitrogen atom of A-cycle then between methylene and adjacent residue of X 2  atom of oxygen or sulfur, sulfonyl, imino and other can be occurred; X 2  nonbranched C 2-4 -alkylene, C 2-3 -alkenylene, and double bond must not adjacent with heteroatom, nonsubstituted or substituted phenylene; X 3  bond or -CO-, -CO-NH- or -NH-CO- if after X 3  no heteroatom or triple bond of B-residue directly; X 4  bond, nonbranched C 1-5 -alkylene, nonsubstituted or substituted phenylene; X 2  together with X 3  and X 4  forms nonbranched C 3-7 -alkylene, phenanthrenylene or naphthylene, fluorenylene, etc. X 5  bond, or their isomers, enantiomers, diastereomers or physiologically tolerated salts. EFFECT: improved method of synthesis. 1 tbl
Patent RU-2017621-C1 (RU)
Title: Шнековый экструдер
Inventor: MITINOV ANDREJ V
IPC: B29C48/51
Filed: 1991-10-22
Granted: 1994-08-15
Abstract: Использование: переработка полимеров методом экструзии с вибровоздействием на материал. Сущность изобретения: шнек выполнен из полых элементов, изготовленных из материала с высокими магнитострикционными свойствами. Корпус выполнен из немагнитного материала, например латуни. Снаружи корпуса над каждым полым элементом установлены электромагнитные катушки, питаемые переменным током высокой частоты. 1 ил.
Patent RU-2052570-C1 (RU)
Inventor: KOLESNIKOV VLADIMIR I
IPC: E01C19/28
Filed: 1991-07-08
Granted: 1996-01-20
Abstract: FIELD: road building. SUBSTANCE: road roller has frame with rolls. Arranged along frame axis is pair of shafts with masses in form of balanced flywheels. Shafts are installed by means of flexible supports to form cantilevers. Vibration exciter is installed between some ends of cantilevers and is connected with the latter by means of springs. Other ends of cantilevers of shafts are coupled with drive by means of flexible couplings. EFFECT: enlarged operating capabilities. 1 dwg
Patent RU-2036651-C1 (RU)
Title: Biogenic stimulator for treating and preventing diseases of farm animals
Inventor: SHITOV GENNADIJ GAVRILOVICH
IPC: A61K35/50
Filed: 1991-10-24
Granted: 1995-06-09
Abstract: FIELD: veterinary. SUBSTANCE: this biogenic stimulator taken in injection medicinal form is designed for treating and preventing diseases of farm animals, predominantly, cows and sows. It is prepared from placental tissues of same animals by chemically treating placenta with oxygen compounds of chlorine by conventional method. EFFECT: from viewpoint of pharmacological effect, disclosed preparation is not inferior to prior art preparations based on human being's placenta, allows species compatibility and minimizes side effects.
Patent RU-2046318-C1 (RU)
Title: Device for carrying out semiconductor structure quality control
Inventor: ALEKSEEV VLADIMIR DMITRIEVICH
IPC: H01L21/66
Filed: 1991-08-26
Granted: 1995-10-20
Abstract: FIELD: electronic engineering. SUBSTANCE: device has semiconductor structure under control, optical system, personal computer with monitor and printer. The device also has photometric ball having illuminators and digital telecamera located in the side windows, telecamera input being optically coupled with the structure under control by means of the optical system. EFFECT: enhanced effectiveness of quality control. 1 dwg
Patent RU-2014732-C1 (RU)
Inventor: PANKOV VIKTOR I
IPC: H03K17/00
Filed: 1991-07-02
Granted: 1994-06-15
Abstract: FIELD: computer engineering. SUBSTANCE: multichannel commutator has M asynchronous channels incorporating recording-reading commutator, address commutator, instruction commutator. It implements communication between several computers over four communication lines and between computers and outside reading and recording devices over three communication lines. Number of switched computers equals number of asynchronous channels of commutator. EFFECT: increased speed of information exchange. 4 cl, 2 dwg
Patent RU-2023511-C1 (RU)
Title: Ball mill
Inventor: KOBZEV IVAN V
IPC: B02C17/18
Filed: 1991-12-12
Granted: 1994-11-30
Abstract: FIELD: crushing of materials. SUBSTANCE: mill has cylindrical drum 1 lined with rubber 2 and accommodating crushing bodies 3. Source components are charged through loading device 4 and crushed in milling chamber 5. Outlet screen 6 is installed on discharge side of drum. Lifters 8 mounted on end cover 7, on its inner side, feed ready suspension to discharge cone 9. The latter periodically closes and opens by aid of transfer valve 10 and rod 11. Ball mill is mounted on supports and placed in operation by means of drive. Lifter ends are bent in towards discharge cone at angle of 115-150 deg. EFFECT: enlarged functional capabilities. 3 cl, 1 dwg
Patent RU-2023869-C1 (RU)
Inventor: MARZIEV MAGOMET-SALI I
IPC: E21B37/02
Filed: 1991-12-16
Granted: 1994-11-30
Abstract: Использование: для очистки колонны бурильных и насосно-компрессорных труб при подъеме их из скважин. Сущность изобретения: в обечайке корпуса выполнены окна под очищающий узел. Очищающий узел - составной, две его половины жестко соединены между собой посредством пластин и болтов. Каждая половина выполнена из двух полуколец уголкового профиля, жестко соединенными между собой болтами, с размещенными между ними эластичными элементами. 3 ил.
Patent RU-2067761-C1 (RU)
Title: Method for predicting metastases development of osteogenous sarcoma into lungs
Inventor: KUSHLINSKIJ NIKOLAJ E
IPC: G01N33/68
Filed: 1991-12-11
Granted: 1996-10-10
Abstract: FIELD: medicine. SUBSTANCE: method involves determining androgen receptors in tumor cytosol fraction using micromethod based on sedimenting hormone-receptor protamine complex with sulfate. Their contents being 10 fmole/mg of protein and higher, earlier hematogenous metastases formation of osteogenous sarcoma into lungs independent of adjuvant chemotherapy type in postoperative period is prognosticated. EFFECT: enhanced accuracy of prognosis. 1 dwg
Patent RU-2010927-C1 (RU)
Inventor: TROITSKIJ PAVEL N
IPC: E04B1/38
Filed: 1992-03-09
Granted: 1994-04-15
Abstract: FIELD: building. SUBSTANCE: joint has an end beam plate, column diaphragms positioned on the levels of upper and lower belts of the beam, and the flange of the upper beam belt. The joint has a strap fixed to a column shelf, the flange of the upper beam belt rests against the strap. The lower beam belt is fixed to the strap and the column shelf by bolts. EFFECT: improved structure. 2 dwg
Patent RU-2051612-C1 (RU)
Inventor: BALASHEV BORIS N
IPC: A61B1/32
Filed: 1992-03-16
Granted: 1996-01-10
Abstract: FIELD: medicine. SUBSTANCE: gynecological mirror comprises a platform with threaded supports which carry couplings with joints and brackets. Secured to the latter are handles and flaps. The supporting flat is positioned on swing-down supports of the platform. The gynecological mirror is designed for diagnostic examinations and operations in gynecological clinics. EFFECT: simpler process of examination and operation which promotes the quality of diagnosing and rehabilitation. 3 dwg
Patent RU-2025785-C1 (RU)
Inventor: GILMUTDINOV ARTUR R
IPC: G09B21/04
Filed: 1992-04-20
Granted: 1994-12-30
Abstract: Цель - расширение функциональных возможностей за счет увеличения объема передачи информации в единицу времени. Сущность изобретения: при передаче информации по системе Брайля электрический кодированный сигнал преобразуют в тепловой и считывают тактильно в виде тепловых импульсов. Способ реализуют с помощью устройства, которое содержит информационную матрицу. Информационная матрица выполнена в виде платы со стандартно расположенными шестью ячейками, в которых установлены тепловые информационные элементы. Применение изобретения расширяет возможности общения со слепоглухонемыми, слепоглухими, слепыми и позволяет осуществить информационный контакт с ними и их между собой, упрощает производство и эксплуатацию устройства. 2 с.п.ф-лы, 2 ил.
Patent RU-2052902-C1 (RU)
Inventor: BELOBROV VASILIJ FILIPOVICH
IPC: H04M3/16
Filed: 1992-04-09
Granted: 1996-01-20
Abstract: FIELD: communication. SUBSTANCE: station equipment for connection of additional subscribers operating in agreement with circuit with diode isolation includes subscriber set 3, commutation unit 4 of automatic telephone exchange, marker 5 of subscriber's search and register 6. Subscriber set, marker of subscriber's search and register are interconnected through commutation unit of ATX. Novelty of station equipment lies in incorporation of generator 7, commutator 8, filter 9 and set 1 of additional subscriber. Set of additional subscriber is placed into subscriber's line 2 in series with subscriber set 3. Set of additional subscriber has analyser of line state, which first and second inputs are linked correspondingly to subscriber's line and to unit 11 of polarity reversal and which output is coupled to first input of unit of control over polarity reversal. Receiver of call of additional subscriber is connected to its second input and output of analyser of state of subscriber's set is linked to third input through unit of time delay and vlocking. Output of unit of polarity reversal is connected to first input of polarity reversal key to which second input output of analyser of state of subscriber's set is connected. Output of polarity reversal key is connected to polarity reversal unit which switches wires a,b,c and is linked to subscriber's set. EFFECT: enhanced operational reliability and efficiency. 2 dwg
Patent RU-2046503-C1 (RU)
Title: Electrical machine fractional-slot three-phase winding
Inventor: POPOV VIKTOR I
IPC: H02K3/28
Filed: 1992-04-27
Granted: 1995-10-20
Abstract: FIELD: electrical machines. SUBSTANCE: each coil group of three-phase winding has five coils with slot pitch and turn number y s =16, 14, 12, 10, 8, and 2·(1+x)·W ,, W(1-x)·W for odd-number groups and  =15, 13, 11, 9, 7, and (1+x′)·W ,, (1+x″)·W ,, W ·(1-x″)·W ,, (1-x′)·W for even-number groups; starting sides of coils of first pair of groups are placed in slots numbered 1, 2, 3, 4, 5 and 7, 8, 9, 10, 11; each next group is placed in slots shifted through 2q= 11 slots relative to preceding pair of groups, where p=1, 2, 3, L= 33 p; k=0, 1, 2, 3, (2p-1); 2′·W is number of turns per slot; values of x, x′, x″, are selected from ranges 0,45≅ x≅ 0,50;, 0,75≅ x′≅ 0,80;, 0,25≅ x″≅0,30.. EFFECT: improved design. 4 dwg
Patent RU-2067650-C1 (RU)
Title: Cylindrical mechanism
Inventor: ANDREEV SERGEJ B
IPC: E05B27/00
Filed: 1992-05-21
Granted: 1996-10-10
Abstract: FIELD: hardware. SUBSTANCE: immovable ring and at least one rotary ring are installed in lock casing. At least two members of composed cylinder with radially arranged individual sets of push members installed inside to interact with locking pins and springs are placed so as to be turned. The second member of the cylinder and radially installed in it push members to interact with locking pins and springs are installed in immovable ring so as to be turned. Carrier is rigidly related to these members. Rotation angle stopper of the rotary ring is placed on the immovable ring. Cylinder members of the ring form unit rotary cylinder with key hole together with the second cylinder member when turning. Rotation angle stopper is made in the form of a ball, spring and screw. EFFECT: high reliability. 4 dwg