baber/WOPTO huggingface dataset:
Patent RU-2042710-C1 (RU)
Inventor: SKOTT TED DZHOLLI
IPC: C10N40/30
Filed: 1990-09-28
Granted: 1995-08-27
Abstract: FIELD: cooling liquids. SUBSTANCE: liquid has fluoro-containing hydrocarbon C 1 -C 2  and effective lubricant quantity that is an ester of polyhydroxy-compound of the formula R[OC(O)R 1 ] n  where R unsaturated hydrocarbon; every R 1  independently each of other hydrogen, lower linear alkyl, branched alkyl C 8 -C 22 , linear C 4 -C 20 -alkyl or alkyl substituted with carboxy or ester group at condition that at least one R 1  is hydrogen, lower linear alkyl, branched C 4 -C 20 -alkyl or alkyl substituted with carboxy or ester group; n 2-10. Synthesized compounds were used in compressor type equipment. EFFECT: improved method of synthesis. 9 cl, 3 tbl
Patent RU-2007695-C1 (RU)
Inventor: VIKULIN IVAN M
IPC: G01J5/00
Filed: 1990-06-18
Granted: 1994-02-15
Abstract: FIELD: measurement technology. SUBSTANCE: photoresistor is used for measurement. To improve precision of measurement semiconducting resistor is placed into magnetic field. Sensitive surface of the resistor is disposed in parallel to magnetic field magnetic induction vector flux and in perpendicular to direction of the flux through semiconducting photoresistor. In this case measured light flux vector, current passing through semiconductor photoresistor and magnetic field induction form the right triple of reciprocal-orthogonal vectors. Semiconducting photoresistor is chosen to have conductivity being close to intrinsic conduction. EFFECT: improved precision of measurement. 1 dwg
Patent RU-2065771-C1 (RU)
Title: Drum mill
Inventor: SHULGIN YURIJ VITALEVICH
IPC: B02C17/10
Filed: 1990-06-27
Granted: 1996-08-27
Abstract: FIELD: grinding and drying machinery for construction, mining and other industries. SUBSTANCE: drum mill has body 1 resting on main roller supports 2 and additional roller support 3. Arranged inside the body are grinding paths and running on them are grinding rolls 8,9 and rolls 10 and 11 with curved working surface. Symmetry axis of roller supports 2,3 is shifted relative to vertical axis of mill cross section, and centers of rolls 8,9,10,11 are located on axes of spread of roller supports. Cutting edges of blades of throw-down device 13 form a common cutting edge. EFFECT: high productive capacity and efficient drying. 4 dwg
Patent RU-2026443-C1 (RU)
Inventor: KASYLKASOV ZHENYS MADYKENOVICH
IPC: E01B11/00
Filed: 1990-11-16
Granted: 1995-01-09
Abstract: Использование: в рельсовых путях. Сущность изобретения: рельсовое стыковое соединение содержит стыковые накладки 3, установленные по обе стороны от рельсов 1, упругий крепежный элемент, образованный коническим стержнем 4, наружная поверхность которого охвачена жесткими сегментами 5, и фиксатор в виде гайки 6. 2 ил.
Patent RU-2018405-C1 (RU)
Inventor: RIEDISSER GUENTER DIPL ING
IPC: B21J13/14
Filed: 1991-01-28
Granted: 1994-08-30
Abstract: Использование: в прессовом оборудовании. Сущность: привод подвижно установленного в ползуне механического штамповочного пресса и расположенного со стороны пуансона выталкивателя 13 содержит установленный в ползуне 7 с возможностью поворота угловой рычаг 15, плечо 14 которого действует на выталкиватель 13, а плечо 17 находится в кинематической связи с водилом 18, шарнирно прикрепленным к приводному шатуну 6. Кинематическая связь включает двуплечий рычаг 18, а также серьгу 23 и кулисный камень 21. Водило 18 поворачивается на угол, определяемый соотношением размеров звеньев соответствующей кинематической цепи, включая величину эксцентриситета эксцентрика 5, и при каждом ходе ползуна 7 по меньшей мере один раз распологается под прямым углом к направлению движения ползуна. 1 з.п. ф-лы, 1 ил.
Patent RU-2018191-C1 (RU)
Title: Methods for recovery of mis device threshold voltage upon its exposure to ionizing radiation and for determination of recovery voltage characteristics
Inventor: EMELYANOV ALEKSEJ M
IPC: H01L21/26
Filed: 1991-02-25
Granted: 1994-08-15
Abstract: FIELD: electronic engineering; recovery of MIS device threshold voltages. SUBSTANCE: method involves application of voltage (τ r ) positive in respect to semiconductor to field-effect electrode of device within definite time (V r ). Values (τ r ) and (V r ) should be predetermined using proposed method. In the course of threshold voltage recovery of MIS device using p-type semiconductor the latter is illuminated on insulator side by light having same spectral composition and intensity as that used for determining (τ r ) and (V r ). (τ r ) and (V r ) characteristics are determined by means of test instruments. Test instruments are divided into two groups one of which is irradiated under conditions ensuring maximum threshold voltage variation and other group, under conditions affording minimum threshold voltage variation. Unknown characteristics are determined by varying time and value of voltage applied with aid of various test instruments. EFFECT: facilitated procedure. 3 cl, 1 dwg
Patent RU-2010537-C1 (RU)
Inventor: CHOKHATARIDI GEORGIJ N
IPC: A23K1/16
Filed: 1991-01-03
Granted: 1994-04-15
Abstract: Использование: в кормопроизводстве, в частности при получении корма, обеспечивающего его полноценную питательность при снижении энергозатрат. Сущность изобретения: кормовая смесь содержит в своем составе, мас. % : дрожжи, выращенные на гидролизате глютеновой суспензии 91-92, мука злако - бобовых культур 5-5,5; кормовая патока 2-2,5; кормовой жир 0,4-0,5; поваренная соль 0,1-0,2; мел 0,1-0,2; обесфторенный фосфат 0,2-0,3; микроэлементы 0,2-0,3. 1 табл.
Patent RU-2008354-C1 (RU)
Inventor: DANILEVICH VASILIJ N
IPC: C12N9/96
Filed: 1991-03-13
Granted: 1994-02-28
Abstract: FIELD: biochemical technology. SUBSTANCE: dimethylsulfoxide is preferably used at a 25-30 % concentration for maintaining proteinases in aqueous buffered saline solution with its pH corresponding optimum pH value of such enzyme for at least one year. EFFECT: allows loss in enzymatic activity of proteinases to decrease considerably. 2 tbl
Patent RU-2014101-C1 (RU)
Title: Method for correcting body constitution
Inventor: KHIMICH OLEG K
IPC: A61N1/36
Filed: 1991-04-18
Granted: 1994-06-15
Abstract: FIELD: medicine. SUBSTANCE: new method prescribes taking physical exercises with consideration for heart rate corresponding to thresholds of aerobic and anaerobic metabolic rates and in addition carrying out electric stimulation of muscles to be corrected in accordance with extent of fatigue during 5 to 8 min, current amplitude falling within range of 10 to 30 mA and pulse rate being equal to 50 Hz. In order to diminish fatiguability of muscles by providing dynamic feedback with amount of load with conserving desired training effect, one will have to carry out additional electric stimulation at threshold level of algesic sensations during 2 to 5 min and record instant of onset of fatigue as parameter to be monitored. EFFECT: shorter training period owing to individual dose of physical load.
Patent RU-2017932-C1 (RU)
Inventor: MYSLYUK MIKHAIL A
IPC: E21B31/03
Filed: 1991-04-19
Granted: 1994-08-15
Abstract: Изобретение относится к бурению нефтяных и газовых скважин, в частности к способам ликвидации прихватов колонны бурильных труб путем установки жидкостной ванны. Цель изобретения - повышение эффективности ликвидации прихвата за счет увеличения амплитуды изменения давления в зоне прихвата путем создания депрессии в зоне прихвата. Для этого во время продавки жидкостной ванны в зону прихвата в составной столб продавочной жидкости, закачиваемой в колонну труб, включают облегченную жидкость, высота столба которой выбирается из условия создания технологически допустимой депрессии в зоне прихвата. После этого формируют пачку газа в изолированном затрубном пространстве необходимой высоты и сжимают ее до получения максимально допустимого давления на устье закачкой в колонну труб жидкости. По достижении этого давления внутреннее пространство колонны труб сообщают с атмосферой и стравливают жидкость из колонны до получения необходимой депрессии в скважине. После этого ванну вымывают из скважины и извлекают колонну.
Patent RU-2010220-C1 (RU)
Title: Method of determination of technological parameters of lyphilization of biological materials
Inventor: SHALAEV EVGENIJ YU
IPC: G01N25/04
Filed: 1991-05-05
Granted: 1994-03-30
Abstract: FIELD: pharmaceutical industry. SUBSTANCE: method includes preparation of several samples of material with different water contact from initial to zero. Specified samples are subjected to thermal analysis during which temperatures of physical-chemical transitions of material from solid to liquid state and back are determined, namely temperatures of vitrification, of material sagging or of start of ice melting. Then diagram of dependence of specified temperatures on content of water in samples is plotted. Later this diagram is used for determination of freezing temperature equal or below temperature of material vitrification, of temperature of material at ice sublimation established below sagging temperature or start of ice melting, of temperature of after-drying of material below sagging temperature. EFFECT: improved efficiency, reduced labor input. 2 dwg
Patent RU-2028625-C1 (RU)
Inventor: SKURATOVSKIJ NATAN O
IPC: G01R21/06
Filed: 1991-06-19
Granted: 1995-02-09
Abstract: Использование: изобретение относится к электро- и радиоизмерениям. Сущность изобретения: устройство содержит исследуемое сопротивление, измерительный трансформатор с первичной обмоткой и двумя вторичными обмотками, переключатель реверса, потенциометр, два диода, два резистора и два конденсатора. 2 ил.
Patent RU-2015733-C1 (RU)
Title: Liquid atomizer
Inventor: SALTAN SERGEJ S
IPC: B05B15/02
Filed: 1991-06-24
Granted: 1994-07-15
Abstract: FIELD: liquid spraying. SUBSTANCE: working orifice in atomizer core is arranged radially. Spring-loaded body turning detent is installed in place of arrangement of working orifice at acute angle to axis of working orifice. Atomizer has bracket secured on outer surface of core. Spring-loaded detent is mounted on bracket. EFFECT: enhanced quality of atomizing. 2 cl, 2 dwg
Patent RU-2010574-C1 (RU)
Title: METHOD OF PREPARING OF CHORIONIC αo-GLOBULIN
Inventor: KALININ YURIJ A
IPC: A61K35/50
Filed: 1991-06-24
Granted: 1994-04-15
Abstract: FIELD: biotechnology, biochemistry. SUBSTANCE: method involves fractionation of butanol extract of early human chorion on immobilized testosterone coupled with trichlorotriazine-epsilon-aminocaproic acid following by ion-exchange chromatography of eluate on DEAE-cellulose. Purity of prepared α o -globulin is 50% , yield is 27.5% . Preparation can be used in obstetrics, gynecology, andrology. EFFECT: improved method of preparing.
Patent RU-2004917-C1 (RU)
Inventor: BALABANOVA LYUDMILA V
IPC: G03C1/675
Filed: 1991-06-25
Granted: 1993-12-15
Abstract: Использование, в средствах дл  репрографии,  полиграфии, микроэлектроники, опт.ико-электрони-  ке, в частности в светочувствительных композици х.  Сущность изобретени  дл  повышени  светочувствительности  и срока сохранности полученного  изображени , а также стойкости последнего к воздействию  органических растворителей композици   содержит, мас% 1,1.3,3-тетраметил-1.3-диферро-  ценилдисилазан 1,5 - 6, соолигомер или i омооли-  гомер 15-20, СВг4 10 - 17 и растворитепь до 100
Patent RU-2033743-C1 (RU)
Title: Method and device for estimating smoothness of follow-up motions of eyes
Inventor: EFIMOV SERGEJ K
IPC: A61B3/00
Filed: 1991-06-27
Granted: 1995-04-30
Abstract: FIELD: vocational selection. SUBSTANCE: method involves repeated presentation to the examinee of a moving object in a limited field of vision, for example, through slits, changing the object at each presentation and estimating smoothness of follow-up motions of eyes by the number of correct answers. The device comprises an opaque screen positioned before the object. Said screen has a number of narrow slits arranged square to the direction of moving object. The width of slits is related to the distance between them as 1: (23-27) and the size of the object is not larger than the distance between slits. EFFECT: improved functional and operating characteristics. 2 cl, 2 dwg, 1 tbl
Patent RU-2031702-C1 (RU)
Inventor: OTTO STAKHL
IPC: B01J12/00
Filed: 1991-08-15
Granted: 1995-03-27
Abstract: FIELD: chemical industry, cooled reactor for exothermic catalytic conversion of gaseous materials, for example, for oxidizing synthesis, for hydrogen and nitrogen conversion for the aim of methanol production. SUBSTANCE: reactor has cylindrical high-pressure vessel, distributing means for synthesized gas, at least one sheet to secure tubes and one or more catalytic chamber, provided with cooling tubes for indirect cooling of reacting gas. Each cooling tube comprise external tube provided with heat-exchanging external wall. This external wall surrounds internal tube and is coaxial to it, thus the external tube restricts annular gap, the internal wall of which is provided with holes to direct cooling gas flow into annular gap and along heat-exchanging wall. The synthesized gas may be used as cooling gas or be a part of it. EFFECT: temperature drop in catalytic chamber is levelled rapidly that results in increased yield of the product, and hence enables to decrease amount of catalyst for the said process. 6 cl, 5 dwg
Patent RU-2053207-C1 (RU)
Inventor: ZHAN-LYUK BERNAR
IPC: C03B/
Filed: 1991-10-28
Granted: 1996-01-27
Abstract: Techniques for making fibres by internal centrifuging of glasses of high melting point, such as basaltic glasses. 
<??>According to the invention the fibre production is obtained by maintaining a temperature gradient between the inner and outer walls of the peripheral band of the centrifuge. The invention also relates to a device for making fibres in which the peripheral band is made of a material which has a thermal conductivity lower than 20 W m<-1>  DEG C<-1> at 1000 DEG C. 
<??>Application to the production of fibres from glasses whose working range is less than 100 DEG C in width. 
<IMAGE>
Patent RU-2008729-C1 (RU)
Title: Radio cassette
Inventor: FADEEV ALEKSANDR N
IPC: G11B23/04
Filed: 1991-09-19
Granted: 1994-02-28
Abstract: FIELD: radio engineering. SUBSTANCE: device has radio receiving unit, power supply, tuning unit, input circuits, high-frequency section, low-frequency amplifier, headphone, ring inductance coil, gap in ring inductance coil, magnetic head, tape recorder/player. EFFECT: increased functional capabilities. 2 cl, 1 dwg
Patent RU-2017873-C1 (RU)
Inventor: FEDOROV VLADIMIR A
IPC: F16C31/02
Filed: 1991-07-31
Granted: 1994-08-15
Abstract: Изобретение относится к швейному машиностроению и может быть использовано при изготовлении швейных машин, работающих на высоких скоростях, и позволяет уменьшить себестоимость изготовления пар трения швейных машин. Для этого детали пар трения изготовляются из определенных алюминиевых сплавов и методом электрохимического микроплазменного процесса (методом микродугового оксидирования) на их рабочих поверхностях получают слой износостойкого материала, который состоит из композита на основе твердых фаз. Этот композит содержит, мас.%: α Al 2 O 3  5-8; γ Al 2 O 3  -80-85; Al 3 O 4  - 7-15, характеризуется низким коэффициентом трения 0,003 - 0,012, интенсивностью изнашивания I h  10 -9  и микротвердостью H - 13ГПа. 3 з.п. ф-лы, 1 ил., 1 табл.
Patent RU-2012054-C1 (RU)
Title: Device for exhaustion of permutations
Inventor: BABAEV ALEKSANDR A
IPC: G06F7/76
Filed: 1991-07-01
Granted: 1994-04-30
Abstract: FIELD: computer engineering. SUBSTANCE: device has two decoders, two multipliers, two OR gates, group of n adders where n is maximal length of generated permutations, n division units, two groups of n registers, three groups of delay gates and group of AND gates. Device implements algorithm for conversion of m(0≅ m<k) into corresponding permutation of elements (k≅ n). EFFECT: increased field of application due to generation of permutations having variable length. 1 dwg
Patent RU-2096114-C1 (RU)
Title: Method for operation of press for squeezing continuously cast hot slab by width
Inventor: GERKHARD KHAJTTSE
IPC: B21B1/02
Filed: 1992-02-21
Granted: 1997-11-20
Abstract: To increase production in an upsetting press for reducing the width of a hot slab cast in a continuous casting installation by lateral pressure on the slab in the upsetting press between the pressing tools, which can be moved towards and away from one another by a lifting eccentric while the slab is moved on a roller table through the upsetting press, the upsetting press is to be operated in such a way that, in the time phase in which the pressing tools are not in contact with the edge of the slab, the slab is accelerated from the predetermined run-through speed and then retarded again to the original run-through speed, the upsetting reduction being reduced beforehand if required.
Patent RU-2044152-C1 (RU)
Title: Internal combustion engine
Inventor: NIKULICHKIN ANATOLIJ K
IPC: F02B77/00
Filed: 1991-12-02
Granted: 1995-09-20
Abstract: FIELD: engine engineering. SUBSTANCE: engine has fuel supply system provided with filter-settler, fine purifying filter, and carburetor connected in series and ignition system with a spark plug. The outer surface of the bank head in the zone of securing of the plug and outer sides of spark plug cap, filters, and carburetor are coated with an antistatic lacquer. EFFECT: enhanced efficiency. 2 dwg
Patent RU-2101875-C1 (RU)
Inventor: MAL TSEV GEORGIJ NIKOLAEVICH
IPC: H04N5/30
Filed: 1991-07-09
Granted: 1998-01-10
Abstract: FIELD: extensive object observation systems operating in conditions of atmospheric distortions without a reference point source. SUBSTANCE: the system uses a receiving optical antenna, wave-front corrector two lense systems, beam splitter, image receiver, mask corresponding to the area of uncertainty of the object position in the system angular field, matrix photodetector, readout circuit, image size meter and a logical control unit. EFFECT: improved design. 2 wdgb
Patent RU-2082376-C1 (RU)
Inventor: GRITSENKO ANATOLIJ G
IPC: A61H23/00
Filed: 1991-12-17
Granted: 1997-06-27
Abstract: Изобретение относится к медицине и может быть применено в лечении нейросенсорной тугоухости. Способ осуществляется следующим образом. Осуществляют мануальное воздействие на позвоночник, направленное на восстановление положения смещенных позвонков на уровне C 2 -C 5  с усилием 15-25 кг/см 2  в течение 3-5 сеансов.
Patent RU-2069602-C1 (RU)
Title: Method to produce pieces of powder quick-cutting steel
Inventor: TOLKACHEVA ELENA P
IPC: B22F3/18
Filed: 1991-12-25
Granted: 1996-11-27
Abstract: FIELD: metal sheet rolling. SUBSTANCE: metal sheet rolling is exercised during blank heating up to temperature of 950 - 1000 C. First runs are carried out with deformation degree of 20 - 22 % and rolling is finished in temperature interval of 780 - 800 C with deformation degree of no less than 50 %. EFFECT: improved process. 1 tbl
Patent RU-2008650-C1 (RU)
Title: Device for determining gas and liquid density
Inventor: KRICHEVSKIJ YURIJ S
IPC: G01N9/20
Filed: 1992-02-07
Granted: 1994-02-28
Abstract: FIELD: instrumentation engineering. SUBSTANCE: device has two floats of different volumes joined together by means of double-arm levers so that lever axis crosses centers of floats, fixed support, position sensor connected to power transducer, and turning gear that provides for turning the device about lever axis through 180 deg. EFFECT: improved design. 1 dwg
Patent RU-2027113-C1 (RU)
Inventor: VINOGRADOV EVGENIJ D
IPC: F23R3/14
Filed: 1992-02-04
Granted: 1995-01-20
Abstract: FIELD: power engineering. SUBSTANCE: air directing branch pipes are arranged at definite distance from burners and are deepened in fire space of flame tube to definite depth described in the invention. Total passage area of branch pipes relative to passage area of air swirlers has been determined. EFFECT: enhanced efficiency. 1 dwg
Patent RU-2017510-C1 (RU)
Title: Respirator
Inventor: KOMPANIETS VIKTOR M
IPC: A62B7/10
Filed: 1991-08-12
Granted: 1994-08-15
Abstract: FIELD: medical engineering. SUBSTANCE: respirator has framing rim which matches configuration of peripheral edge of framed semi-mask 2 and at the same time is rigidly connected to retaining arcs 13 of guard shield 7 of exhalation valve. Frame carries four or five knobs 8 in different sections of semi-mask 2 on both sides from vertical axis of symmetry of semi-mask 2 for dislocating headrest 4 to match patient's individual traits. Framing rim 1 is 8 to 10 mm wide and its inner undulatory edge has depressions of 2 to 3 mm in depth. EFFECT: greater convenience and simplicity. 3 cl, 3 dwg
Patent RU-2005385-C1 (RU)
Inventor: FALALEEVA RIMMA V
IPC: A23K1/00
Filed: 1992-02-25
Granted: 1994-01-15
Abstract: Изобретение относится к сельскохозяйственному производству и может быть использовано при обеззараживании рассыпного комбикорма. Задачей изобретения является разработка технологии высокочастотного обеззараживания рассыпного комбикорма. Для этого рассыпной комбикорм с влажностью 12 - 13 % подвергается воздействию электромагнитного поля с частотой 1.76-300·10 6  Гц при напряженности электрического поля 15 - 80 кВ/м в течение 0,5 - 15 мин со скважностью импульсов воздействия 0,2 - 0,8, причем температура нагрева комбикорма составляет 50 - 120С. 3 табл. , 8 ил.
Patent RU-2077739-C1 (RU)
Inventor: SOLOPAEVA INESSA M
IPC: G09B23/28
Filed: 1991-12-25
Granted: 1997-04-20
Abstract: FIELD: medicine. SUBSTANCE: method involves administration of chorionic gonadotropin simultaneously with mussel food hydrolyzate. Gonadotropin is administrated once per a day at dose 75-85 U/100 g body mass at 1, 2, 3, 9, 10 and 11-th days after administration beginning. Administration is carried out by gavage into stomach once per a day (3 ml 33% aqueous solution), for 4 days, then pause for 2 days followed by three-fold repetition of this course. EFFECT: improved method of recovery, enhanced effectiveness. 3 cl, 1 tbl
Patent RU-2045039-C1 (RU)
Title: Refractive index measurement technique for condensed media
Inventor: MOROZOV VLADIMIR N
IPC: G01N21/43
Filed: 1992-03-03
Granted: 1995-09-27
Abstract: FIELD: measurement technology. SUBSTANCE: position of two color-contrast boundaries appearing both in reflection from analyzed medium and from boundary of two parts of prism with refractive index n 1   and n 2  is recorded simultaneously; here, n anal <n 2 <n 1 , where n anal  is refractive index of analyzed medium; two parts of prism are joined so that their boundary makes obtuse angle relative to base plane of first prism and refractive index of analyzed medium n anal  is found from equation n anal = n 1 ·sin(arcSin n 2 /n 1 +γ), where γ is difference in angular position of color-contrast boundaries. EFFECT: facilitated procedure. 3 dwg, 1 tbl
Patent RU-2117568-C1 (RU)
Title: Method of manufacturing phenol-bonded grinding wheel
Inventor: GORSHKOV N B
IPC: B24D3/28
Filed: 1992-03-20
Granted: 1998-08-20
Abstract: FIELD: manufacture and operation of abrasive tools on organic binder; may be used in manual material snagging and/or polishing operations. SUBSTANCE: abrasive mixture based on phenol binder is placed between two spacers from raw rubber into closed pressure mold. Then, pressure mold is heated to the temperature of fluid state of binder and at the same time subjected to vacuum treatment to attain rarefaction down to 1 mm Hg. Heat pressing is performed with pressure of up to 500 kgf/sq.cm with holding for at least two minutes on at least 10 cm of wheel height. Then, semifinished product is subjected to heat treatment at temperature up to 180 C with simultaneous evacuation to rarefaction of 1 mm Hg and holding to attain final solidification of mixture. EFFECT: higher efficiency. 1 dwg, 1 tbl
Patent RU-2030729-C1 (RU)
Title: Device for sampling fluid
Inventor: ROMANOV VLADIMIR IVANOVICH
IPC: G01N1/10
Filed: 1992-03-02
Granted: 1995-03-10
Abstract: FIELD: investigating properties of materials. SUBSTANCE: sampler is constructed as a sleeve which encloses the upper part of soil-conducting pipe. The pipe is rigidly secured inside the sleeve. The top face of the pipe is mounted below the top face by 1/6 of the sleeve length. The bottom face of the air-conducting pipe is connected to the soil- conducting pipe at 2 cm height above the bottom face of the soil-conducting pipe. EFFECT: improved design. 1 dwg