baber/WOPTO huggingface dataset:
Patent RU-2079492-C1 (RU)
Title: Derivative of 1,8-acridinedione, pharmaceutical composition for bladder relaxing, substance relaxing bladder, methods of synthesis (variants)
Inventor: SAJRUS DZHON ONMAKHT
IPC: C07D/
Filed: 1992-10-20
Granted: 1997-05-20
Abstract: FIELD: organic chemistry and technology. SUBSTANCE: product: 9-(3-cyanophenyl)-3,4,6,7,9,10-hexahydro-1,8-[2H, 5H]-acridine- -dione is synthesized by interaction of 3-cyanobenzaldehyde with ammonium salt and 1,3-cyclohexanedione or by interaction of 3-amino-2-cyclohexa-1-one with 3-cyanobenzaldehyde or its reactive derivative. Proposed compound shows relaxing action on bladder and can be used as an active component in pharmaceutical composition. EFFECT: improved method of synthesis, enhanced effectiveness. 5 cl, 1 dwg
Patent RU-2049117-C1 (RU)
Title: Mixture for molten metal working
Inventor: BARANNIK IVAN ANDREEVICH
IPC: C21C1/10
Filed: 1992-11-08
Granted: 1995-11-27
Abstract: FIELD: metallurgy. SUBSTANCE: mixture has, wt.-% granules of alloy magnesium-silicon 5-50; mixture of metal halides 0.1-10, and ferrosilicon the rest. Ferrosilicon has 45-80% silicon and 0.2-1% one element of the group barium, calcium, rare-earth metals, and iron the rest. EFFECT: enhanced quality of mixture. 2 cl, 1 tbl
Patent RU-2053102-C1 (RU)
Inventor: AGEEV LEONID M
IPC: B24B21/14
Filed: 1992-11-25
Granted: 1996-01-27
Abstract: FIELD: ferrous and non-ferrous metallurgy. SUBSTANCE: aggregate has device for strip rewind, pulling rolls and assembly for strip grinding consisting of tightening roller and drive drum encompassed by endless abrasive belt contacting with guiding roller having parabolic concave barrel and with bearing roller through group strip. The guiding roller is made as cylindrical shell open from face ends. The conical corks are mounted with longitudinal force into shell on both sides in the process of regulating the transversal profile of shell, for example, with the help of conveyance of screw-nut. In this case the nuts of both conical corks-screws are fastened in stationary pillows and by means of gears secured in stationary bearing supports connected between themselves with the axis of coupling, for example. The displacement of conical corks-screws along the axis of cylindrical shell of guiding roller is carried out from engine, in synchronism. EFFECT: facilitated manufacture. 1 cl, 3 dwg
Patent RU-2097175-C1 (RU)
Inventor: SULIM LEONID M
IPC: B27M3/00
Filed: 1992-12-24
Granted: 1997-11-27
Abstract: Использование: производство ваз, сосудов, цветочных горшков и т.п. Сущность изобретения: изделие состоит из элементов, уложенных этажами и соединенных клеем. Боковые поверхности элементов являются поверхностями пересечения изделия с телесным углом, под которым виден данный элемент из соответствующего локального центра. 8 з.п. ф-лы, 14 ил.
Patent RU-2004833-C1 (RU)
Inventor: BOJKO VADIM S
IPC: F01K13/00
Filed: 1992-12-29
Granted: 1993-12-15
Abstract: Использование: в области теплоэнергетики,  преимущественно дл  выработки электроэнергии  на базе комбинированного использовани  тепловых  вторичных энергетических ресурсов (ВЭР) паросиловой  установки и ВЭР избыточного давлени  природного  газа при распределении его потребител м.  Сущность изобретени  перед газопроточной турбиной  установлены подогреватели газа, сообщенные  по греющей среде с конденсатно-питательным  трактом, паропроводом отборного пара, паропроводом  редуцированного острого пара и трактом уход щих  газов котла паросиловой установки. Нар ду  с комплексным использованием ВЭР обеспечиваетс  температурна  защита газопроводов в широком  диапазоне температур. 1.ил.
Patent RU-2082000-C1 (RU)
Inventor: NAGAOKA TADAYOSHI
IPC: E21B43/08
Filed: 1992-12-25
Granted: 1997-06-20
Abstract: FIELD: drilling of oil wells. SUBSTANCE: according to method, base member preferably cylindrical in shape and with holes is installed. Interlaying members are located on outer surface of base member in longitudinal direction. Wire is wound over interlaying member with clearance so as to create circular space between surface of wire and outer surface of base member. By means of interlaying members, aforesaid space is divided into longitudinal passages and at definite intervals these passages are isolated in cross section. This operation is performed by means of hardening fluidic material which is brought to outer surface of filter. Filter is being rotated as hardening material fills longitudinal passages and clearances of wire with covering its outer surface at isolating intervals. EFFECT: better uniformity of gravel distribution in well and prevention of sand penetration into filter. 5 cl, 2 dwg
Patent RU-2080511-C1 (RU)
Title: Уплотнение радиального сжатия для герметичного соединения трубы с вставляемым концом и трубы с раструбом
Inventor: ALEN PERSEBUA
IPC: F16L37/084
Filed: 1993-01-12
Granted: 1997-05-27
Abstract: Использование: для трубопроводов из ковкого чугуна при транспортировке текучих сред под давлением. Сущность изобретения: уплотнение радиального сжатия состоит из кольцевого корпуса из эластомера с наружным фиксирующим выступом, в котором предусмотрены заключенные в эластомер опорные вставки, входящие в кольцевую канавку раструба. Блокирование уплотнения осуществляется с помощью зубчатых вставок в виде венца зацепления, имеющих заднюю наклонную плоскость, которая опирается на наклонную плоскость опорных вставок, размещенных в фиксирующем выступе корпуса, которые блокируются в задней части кольцевой фиксирующей канавки раструба. 6 з.п. ф-лы, 7 ил.
Patent RU-2101451-C1 (RU)
Inventor: SAL VADOR GARSIA SANTAMARIJA
IPC: A47B95/02
Filed: 1992-05-12
Granted: 1998-01-10
Abstract: FIELD: domestic refrigerators. SUBSTANCE: profiled member 3 for heat-insulated doors 1 and 2 of refrigerator having inner and outer panels includes gripping device consisting of two cavities 4 provided near end parts of profile 3 and device for assembly of profile 3 with door 1, 2. Cavity 4 located on side of door 1, 2 is articulated to housing of refrigerator and is closed with cover 14 having horizontal surface; owing to this, cavity located on side of door 1 is articulated to housing of refrigerator cannot be used by mistake for opening the door. EFFECT: enhanced reliability. 6 cl, 17 dwg
Patent RU-2117874-C1 (RU)
Title: Gas-turbine engine annular combustion chamber
Inventor: GREKHNEV V A
IPC: F23R3/38
Filed: 1993-02-03
Granted: 1998-08-20
Abstract: FIELD: aircraft gas-turbine engines. SUBSTANCE: annular combustion chamber includes partition dividing the chamber into central and peripheral sections. Partition is made in form of double cylinder. Combustion chamber is also provided with revolving injector located diametrically opposite cylindrical partition. EFFECT: high completeness of combustion; wide range of operation of compressor at unrated modes; reduced emission of toxic agents. 1 dwg
Patent RU-2083626-C1 (RU)
Title: Glue composition
Inventor: ARUTYUNOV IGOR A
IPC: C09J153/02
Filed: 1993-04-01
Granted: 1997-07-10
Abstract: FIELD: gluing of flexible substrates (for example, rubber, leather, textile materials). SUBSTANCE: proposed composition contains 100 mass parts of butadiene (isoprene) styrene thermoelastoplast, 5-20 mass parts of colophony, ether of colophony, disproportioned or hydrated colophony, 5-20 mass parts of quinolone, 100-550 mass parts of organic solvent. Mentioned above quinolone ether has formula   where R 1  is alkyl, aryl or alkoxyl, R 2  is H, CH 3 , R 3  is H, alkyl, R 4 -C 2 H 5  is C 4 H 9 . EFFECT: improved gluing. 2 tbl
Patent RU-2070878-C1 (RU)
Title: Process for preparing monoethanolamides
Inventor: TUMANOV VYACHESLAV V
IPC: C07C233/18
Filed: 1993-03-22
Granted: 1996-12-27
Abstract: FIELD: organic chemistry. SUBSTANCE: product: monoethanolamides. Reagent 1: animal fat. Reagent 2: monoethanolamide. Reaction conditions: saponification is carried out at animal fat to monoethanolamine weight ratio of 4: 1, at temperature of 120-140 C for 1 hour followed by addition of sodium hydroxide in amount of 0.2-0.5 wt% for 30 min. EFFECT: more efficient preparation process. 3 ex, 1 tbl
Patent RU-2062970-C1 (RU)
Title: Method of control of temperature level of loop thermal tube
Inventor: MAJDANIK YURIJ F
IPC: F28D15/06
Filed: 1993-04-23
Granted: 1996-06-27
Abstract: FIELD: thermal stabilization of various thermally-loaded objects. SUBSTANCE: temperature control of thermal tube is effected by means of controllable thermal action on heat-transfer agent in compensation chamber. Action is effected by heating or cooling the heat-transfer agent controllable according to definite law. Power of control action may be found from formula Q p = C reg Q/L(T cc2 - T cc1 ), where Q p  is power of control thermal action; W; C reg  is heat capacity of liquid heat-transfer agent, J/kg K; Q is heat flow transferred to by thermal tube, W; L is latent evaporation heat of heat-transfer agent, J/kg; T cc1  is temperature of vapor in compensation chamber realizing at preset temperature of vapor in evaporation zone of thermal tube or heated wall of evaporator, K; T cc2  is temperature of vapor in compensation chamber realizing at preset conditions of supply and removal of heat in evaporator and condenser of thermal tube, K. Power may be set by means of automated system at feedback by temperature of vapor in vapor line or wall of evaporator. EFFECT: enhanced reliability.
Patent RU-2048269-C1 (RU)
Inventor: IVANENKO VLADISLAV V
IPC: B22F3/26
Filed: 1993-06-22
Granted: 1995-11-20
Abstract: Сущность изобретения: способ изготовления самосмазывающегося металлофторопластового подшипника скольжения состоит в том, что из бронзовой стружки изготавливают втулку с остаточной пористостью 20 25% и размером пор 0,3 0,5 мм, а затем под давлением 1,5-2,0 т/см 2  пропитывают жидким фторопластом с последующей сушкой и калибровкой изделия при комнатной температуре. Способ позволяет в 2,1 раза повысить износостойкость по сравнению с существующими стружковыми подшипниками и на 30 40% увеличить их долговечность за счет уменьшения отслаивания и задиров фторопластовой пленки. 1 табл.
Patent RU-2072298-C1 (RU)
Title: Part surface finishing tool
Inventor: KOSHELEV ALEKSANDR G
IPC: B24B1/00
Filed: 1993-10-11
Granted: 1997-01-27
Abstract: FIELD: mechanical working of surfaces of parts working under increased temperature conditions. SUBSTANCE: tool has low- melting temperature binder and antiscuff antifriction substances. Substance selected in the group containing paraffin, ceresine, wax or gallium is used as binder. Substance selected in the group containing graphite, molybdenum disulfide, boron nitride and at least one substance selected in the group containing tin, indium, cadmium or bismuth are used as antiscuff antifriction substances. EFFECT: increased efficiency, improved strength of tool and enhanced reliability in operation. 8 cl
Patent RU-2120217-C1 (RU)
Title: Method for regulating moisture content of organic materials
Inventor: UORREN D UINTERSON
IPC: A23L7/10
Filed: 1993-10-29
Granted: 1998-10-20
Abstract: FIELD: tobacco industry, in particular, drying or increasing moisture content of tobacco or other hygroscopic organic materials. SUBSTANCE: method involves conditioning tobacco with flow of air having relative humidity approximating to tobacco equilibrium condition. As volatile content in tobacco is increases, relative humidity of air flow coming into contact with tobacco mass is also increased. Method further involves drying tobacco by treating it with air flow having relative humidity corresponding to or below tobacco equilibrium condition. As volatile content in tobacco is reduced, relative humidity of air flow coming into contact with tobacco mass is also reduced. EFFECT: increased efficiency and improved quality of tobacco or other organic material. 24 cl, 7 dwg, 9 tbl
Patent RU-2069748-C1 (RU)
Title: Method for rill cut mining of thick steeply dipping beds with filling
Inventor: FAJNER ILYA A
IPC: E21C41/16
Filed: 1993-11-22
Granted: 1996-11-27
Abstract: FIELD: mining. SUBSTANCE: method for rill cut mining of thick steeply drilling beds with filling includes dividing the bed into inclined slices and their extraction in descending or ascending manner of each slice by short strips along the strike and filling. Formed in fill mass of extracted slice are drifts and inclines for working the adjacent inclined slice by displacing similar drifts in adjacent slices through the value of half of cross-section to the dip or to the rise of the bed. Stopes in the adjacent slices are formed by alternating on different districts of extraction field by changing the direction of extraction of short strips in adjacent slices to opposite one. Besides, prior to filling, supports with anchoring devices are laid in each strip on its floor. EFFECT: higher efficiency. 2 cl, 22 dwg
Patent RU-2079869-C1 (RU)
Title: Device for information processing and output
Inventor: ROMANOVSKIJ VALERIJ G
IPC: G05B23/02
Filed: 1994-01-27
Granted: 1997-05-20
Abstract: FIELD: automation, in particular, devices for monitoring, processing and recording characteristics of multiple-function controlled objects. SUBSTANCE: device has serial circuit of detectors 2 for first characteristic, differential amplifiers 3, analog-to-digital converters 4 and first-group commutators 5, which outputs are device information outputs 18. In addition device has operator's console 7, decoder 9, multiplexer 10, clipping elements unit 8, current source 1, time intervals meter 12 and detector 11 for second characteristic with corresponding functional connections. EFFECT: increased field of application, increased reliability and validity. 1 dwg
Patent RU-2116582-C1 (RU)
Title: Automatic gas-fired water heater
Inventor: FUNDATOR JULIJ VLADIMIROVICH
IPC: F24H9/20
Filed: 1994-03-11
Granted: 1998-07-27
Abstract: FIELD: water heating appliances. SUBSTANCE: automatic gas-fired water heater has main and ignition torches 2 and 3, respectively, shut-off valve 6 for main burner, heat exchanger 1, room-temperature sensor 10, automatic safety and control gear 7. The latter incorporates water-temperature, ignition-torch flame, and draft sensors 9, 5, and 4, respectively, and electromagnet 8 connected to gas supply valve. Inserted between shut-off valve 6 of main torch and safety and control gear valve is regulating valve 12 of radiator thermostat, such as that of firm Danfoss, coupled through control part with room- temperature sensor 10; electromagnet 8 is supplied with power from flame sensor 5. EFFECT: reduced gas consumption, facilitated servicing, reduced maintenance and adjustment time. 1 dwg
Patent RU-2083731-C1 (RU)
Inventor: MAMAEV ANATOLIJ I
IPC: C25D11/02
Filed: 1994-04-01
Granted: 1997-07-10
Abstract: FIELD: electrochemical treatment of surface of metals and alloys to produce oxide coatings. SUBSTANCE: the essence of the invention consists in preliminary determination, in compliance with requirements to coating thickness, of number of cathode power modules in cathode group and number of anode modules in anode group to obtain the required maximum values of cathode and anode voltages. In unit of mode cycling the type of mode is set: anode, cathode, anode-cathode or break interval, and time of operation in each mode. Then, by switching in the device, the required mode of operation is set and respective electrical characteristics are selected and surface in subject to treatment. EFFECT: higher efficiency. 2 dwg
Patent RU-2063083-C1 (RU)
Title: Alloy for permanent magnets
Inventor: KOMAROV NIKOLAJ N
IPC: C22C33/02
Filed: 1994-04-11
Granted: 1996-06-27
Abstract: FIELD: electronic, instrumentation, radioelectronic, and mechanical engineering, etc. SUBSTANCE: alloy has in its composition rare-earth elements, iron, boron, and also niobium and tantalum; according to invention, alloy contains sum of light and heavy rare-earth elements; light elements are presented by at least one of rare-earth elements chosen from neodymium, praseodymium group and heavy elements, by at least one element chosen from dysprosium, terbium group. In addition, alloy contains one of elements of 1A group, copper, nickel, aluminium, chromium, as well as fluorine and oxygen, in the following proportion, mass percent: light rare-earth elements - 10-30; heavy rare-earth elements -1-7; fluorine -0.02-0.022; oxygen - 0.01-0.03, boron - 0.5-1.5; tantalum (niobium) - 0.01-0.5; group 1A elements - 0.01-0.5; copper, nickel, aluminium, chromium - 0.5-1.5; iron - the rest. EFFECT: improved magnetic characteristics of permanent magnets. 6 tbl
Patent RU-2082800-C1 (RU)
Inventor: DOROZHKIN ANATOLIJ K
IPC: C22C1/08
Filed: 1994-06-10
Granted: 1997-06-27
Abstract: FIELD: electrical engineering. SUBSTANCE: method includes pressing of porous blanks, internal oxidation, caking, calibration, and high- temperature annealing. In the method, powders with particle size 2-7 mcm are used, pressure 1.5-2.3 Tl/sq.cm, oxidation temperature 280- 400 C, and final annealing temperature 860-900 C. Method makes it possible to increase wear-resistance of contacts and eliminate interpolar links resulting in about 50% prolonged service life of actuators with the same amount of silver, or to reduce contact weight by a factor about 1.5. EFFECT: improved performance characteristics of contact. 1 tbl
Patent RU-2085261-C1 (RU)
Title: Способ очистки газа от паров иода
Inventor: MASLENNIKOV BORIS IVANOVICH
IPC: B01D53/02
Filed: 1994-07-27
Granted: 1997-07-27
Abstract: Изобретение относится к очистке воздушных смесей, содержащих различные примеси, в частности, пары элементарного йода. Сущность изобретения: для очистки используют сорбент из торфа, полученный последовательной обработкой торфа растворами щелочей и Al 2 (SO 4 ) 3 . Сорбент имеет размер пор 150-170 мкм при среднем диаметре частиц 0,3-0,4 мм, при постоянной влажности 75-80%. Скорость пропускания газа через сорбент равна 0,02-0,03 м/с. 1 ил, 3 табл.
Patent RU-2078728-C1 (RU)
Inventor: ZAGULYAEV GENNADIJ A
IPC: B65G33/32
Filed: 1994-07-28
Granted: 1997-05-10
Abstract: FIELD: mechanical engineering; transportation of loose materials. SUBSTANCE: intermediate support of sectional screw conveyor has hinge-connected butt joint of shafts of screw of foregoing and following sections with screw surfaces, rod stops in form of screw blade secured on each butt-joined ends for rotation together with shaft, and rim fastened on ends of rod stops. Inner diameter of rim corresponds to inner diameter of housing with circular depression. Surface of outer diameter of rim is located on surface of depression to provide sliding of rim surface over surface of circular depression when shaft is rotated. EFFECT: enlarged operating capabilities. 8 dwg
Patent RU-2083904-C1 (RU)
Title: Device for banding pipe line
Inventor: ZAJONCHKOVSKIJ VIKTOR V
IPC: F16L1/00
Filed: 1994-08-18
Granted: 1997-07-10
Abstract: FIELD: construction and repairing pipe lines. SUBSTANCE: device has C-shaped housing 1 with roller bearings 2,3,4, ring rotor 5 with holders 6,7 of rolls and mechanism 8 for braking rolls, and roll bearing 9 and 10 of drive 12. Housing 1 is provided with suspension 14 with shoe 15 for fixing housing 1 to pipe line 11. Rotor 5 has joints 19 and 20 that are in coincidence with the plane of joints 21 and 22 of housing 1 and suspension 14. The device is mounted on pipe line 11 via roll bearings 9 and 10. Suspension 14 is passed under pipe line 11 and is secured to housing 1 by threaded members 16. EFFECT: improved design. 3 dwg
Patent RU-2102399-C1 (RU)
Title: Method for producing 3′-azido-2′,3′--didesoxythymidine
Inventor: MUSTAFIN A G
IPC: C07H19/06
Filed: 1994-09-26
Granted: 1998-01-20
Abstract: FIELD: organic chemistry; pharmaceutical industry. SUBSTANCE: 3′--azido-2′,3′--didesoxythymidine is prepared by consequent interaction of 1,2-isopropylidene-α-D-xylofuranose with benzoyl chloride and with methane sulfochloride, molar ratio of components is 1:0.7-1.2 and 1:1-2.5, respectively. Product is acylated by acetic anhydride in acetic acid, H 2 SO 4  being added; the process takes place at molar ratio 1:3-1:20-50:1-5. Compound is condensed with silylated thymine, the process takes place in the presence of SnCl 4  in acetonitrile solution. Yield of intermediate nucleoside is 90 %. Intermediate product is affected by desacylation which takes place by heating at 75 C in solution of acetonitrile and 1 M aqueous solution of H 2 SO 4 . Desacylated compound of SOCl 2  is boiled in acetonitrile medium to prepare chloro-derivative of nucleoside at 80 % yield. By treatment with tributyl tin hydride in the presence of AlBN 2-desoxy-derivative is prepared at 90 % yield. By heating thus prepared product at 150 C with NaN 3  in dimethyl formamide and by treatment with excess of MeoNa in methanol product is obtained. Total yield of compound is 25.16 % (as calculated for D-xylose). EFFECT: improved efficiency. 4 tbl
Patent RU-2099372-C1 (RU)
Title: Pigment titanium dioxide and method for its production
Inventor: DZHON R BREND
IPC: C09D7/12
Filed: 1994-11-23
Granted: 1997-12-20
Abstract: Titanium dioxide pigment having a high durability when used in paint or the like exposed to solar radiation and methods of producing such titanium dioxide pigment are described. The durable titanium dioxide pigment comprises rutile titanium dioxide particles having cerium oxide and dense amorphous silica deposited thereon. The particles preferably also have an outer coating of hydrous alumina deposited thereon.
Patent RU-2108104-C1 (RU)
Title: Method for treating chlamydiae-induced infection of urogenical tract in women
Inventor: BATYRSHINA S V
IPC: A61K35/14
Filed: 1994-12-05
Granted: 1998-04-10
Abstract: FIELD: medicine; gynecology; venerology; obstetrics. SUBSTANCE: method involves in addition to regular administration of antichlamydial antibiotics, immunity-correcting preparations and locally acting drugs, introduction of actovegin in the form of intramuscular injections daily for 14-21 days, and local introduction tampons containing 5-% ointment or 20-% gel. EFFECT: higher efficiency.
Patent RU-2126007-C1 (RU)
Title: Derivatives of indolocarbazoleimide, mixture of their isomers and their salts, pharmaceutical composition exhibiting activity inhibiting protein kinase c or light myosin chain kinase and inhibiting immune responses
Inventor: JURGEN KLEJNSHROT
IPC: C07D/
Filed: 1993-05-28
Granted: 1999-02-10
Abstract: FIELD: organic chemistry, biochemistry, pharmacy. SUBSTANCE: invention relates to derivatives of indolocarbazoleimide of the general formula (I)   where R 1  and R 2  - hydrogen, alkyl, cyanoalkyl, azidoalkyl and haloidalkyl, arylsulfonyloxyalkyl, aminoalkyl optionally mono- or disubstituted with alkyl at nitrogen atom and optionally substituted with hydroxyl at alkyl moiety. Two substituents at nitrogen atom in aminoalkyl-group together with nitrogen atom can form pyrrolidine ring, or mean residue of the formula (a)   where n = 1-3; R 11  and R 12  - hydrogen, alkyl; R 3 -R 10  - hydrogen, alkyl, alkoxy-group, halide, hydroxyl, acyloxy-group, aminoalkyl, a mixture of their isomers and their salts. Synthesized compounds are highly active inhibitors of protein kinase C or kinase of light myosin chain, or agents that inhibit immune responses. EFFECT: improved method of synthesis, enhanced effectiveness of compounds. 12 cl, 4 tbl, 11 ex
Patent RU-2121014-C1 (RU)
Title: Electrolyzer with self-sintering electrode
Inventor: KNUT ARNE PEULSEN
IPC: C25C3/12
Filed: 1995-01-06
Granted: 1998-10-27
Abstract: FIELD: design of aluminum electrolyzers. SUBSTANCE: electrolyzer with self-sintering electrode for production of aluminum has cathode that presents electrolyzer bath, unit of anode enclosure placed above cathode in immobile position and carrying carbon anode partially passing into electrolytic bath, means to feed and remove direct current from electrolyzer and aid to inject additives, for instance aluminum oxide, into electrolyzer bath. Anode is divided into two sections so that unit of anode enclosure is composed of two sections placed in parallel and one close to another. Separable lid or structure is positioned between sections of enclosure. Proposed design ensures solving of problem of air pollution, improves gas trapping, simplified loading and provides for metered loading. EFFECT: increased environmental control, improved operational characteristics. 5 cl, 4 dwg