baber/WOPTO huggingface dataset:
Patent NZ-702255-A (NZ)
Title: Dimensionally stable geopolymer composition and method
Inventor: DUBEY ASHISH
IPC: C04B111/72
Filed: 2013-04-19
Abstract: A method for making geopolymer cementitious binder compositions for cementitious products such as concrete, precast construction elements and panels, mortar, patching materials for road repairs and other repair materials, and the like is disclosed. The geopolymer cementitious compositions of some embodiments are made by mixing a synergistic mixture of thermally activated aluminosilicate mineral, calcium sulfoaluminate cement, a calcium sulfate and a chemical activator with water.
Patent NZ-712473-A (NZ)
Title: Fermented nutrition high in lactose with increased iron bioavailability
Inventor: VAN DEN BRAAK CLAUDIA CATHARINA MARIA
IPC: A61P7/06
Filed: 2014-03-24
Abstract: The present invention relates to a milk-derived product that is fermented by lactic acid producing bacteria comprising lactic acid and/or lactate and further comprising: i) at least 6 g lactose per 100 ml nutritional composition and/or at least 40 wt.% lactose based on dry weight of the nutritional composition; ii) iron and iii) 0.2 g to 1.5g non-digestible oligosaccharides per 100 ml nutritional composition and/or at least 1.0 wt.% to 20 wt.% nondigestible oligosaccharides such as galactooligosaccharides or fructooligosaccharides based on dry weight of the nutritional composition. The composition is provided for improving the bioavailability of iron and preventing or treating of iron deficiency (anaemia), in particular for infants and young children or pregnant women. In another aspect of the invention, the nutritional compositions are for preventing cognitive disorders and/or socio- emotional disorders in an infant and/or young child.
Patent NZ-723446-A (NZ)
Title: Fertilizer capsule comprising one or more cores and method of making same
Inventor: KANAGALINGAM SABESHAN
IPC: C05G3/90
Filed: 2015-01-28
Abstract: In accordance with the present invention, disclosed herein is a fertilizer capsule comprising one or more cores, wherein each of the one or more cores independently comprises a urease inhibitor or nitrification inhibitor and from 10 wt % to 99 wt % of an extrudable binder, coated at least partially with a nitrogen fertilizer shell. Also in accordance with the present invention, disclosed here is a method of producing a fertilizer core via an extrusion process.
Patent NZ-728207-A (NZ)
Title: Oligonucleotide-based inhibitors comprising locked nucleic acid motif
Inventor: VAN ROOIJ EVA
IPC: A61K48/00
Filed: 2013-06-21
Abstract: The present invention relates to chemical modification motifs for oligonucleotides complementary to miR-92a. The oligonucleotides of the present invention, such as chemically modified antisense oligonucleotides, can have increased in vivo efficacy. The chemically modified oligonucleotides provide advantages in one or more of potency, efficiency of delivery, target specificity, toxicity, and/or stability. The chemically modified oligonucleotides have a specific chemical modification motif or pattern of locked nucleic acids (LNAs). The oligonucleotide (e.g. antisense oligonucleotide) can target RNA, such as miRNA or mRNA. Also provided herein are compositions comprising the chemically modified oligonucleotides and methods of using the chemically modified oligonucleotides as therapeutics for various disorders, including cardiovascular disorders.
Patent NZ-735836-A (NZ)
Title: Applicator for cryoanesthesia and analgesia
Inventor: BESIRLI Cagri Giray
IPC: H01L35/32
Filed: 2016-03-24
Abstract: Embodiments of the present invention address the problems of lack of temperature control and of the inability to tightly focus the treatment area when applying anesthesia or analgesia. An embodiment of the invention provides a device for cooling a target area of a cutaneous membrane, a mucous membrane, or tissue of a mucocutaneous zone, the device having an elongated body and a thermally conductive cooling tip. The elongated body has a gripping portion to facilitate handheld manipulation by a user, a proximal end and a distal end. A cooling system is disposed within at least a portion of the elongated body for providing low-temperature cooling of the tip. The tip is disposed on the distal end and is adapted to thermally contact the target area. The tip has a cooling portion configured to physically contact and cool the target area to a temperature ranging from about 5°C to about -90°C to induce anaesthesia or analgesia in the target area.
Patent NZ-747261-A (NZ)
Title: Stevia-containing beverage
Inventor: NAKAJIMA MAKOTO
IPC: A23L27/00
Filed: 2017-03-31
Abstract: The purpose of the present invention is to provide a beverage in which the aftertaste caused by rebaudioside D (RebD) and rebaudioside M (RebM) is improved. The content (A) of tea-polymerized polyphenols in the beverage is adjusted to within a specific range, the total content (B) of RebM and/or RebD in the beverage is adjusted to within a specific range, and B/A is adjusted to within a specific range.
Patent NZ-756301-A (NZ)
Title: Dynamic satellite beam assignment
Inventor: BECKER DONALD
IPC: H04B7/185
Filed: 2018-03-01
Abstract: Embodiments provide techniques for dynamic spot beam assignment in a geostationary satellite communications network. For example, a ground processing node in the geostationary satellite network can monitor spot beam coverage area location and can detect a beam drift trigger indicating present drifting of one or more coverage areas. Ground terminals can be identified as serviced by spot beams associated with the drifting coverage area(s) and as experiencing a signal quality impact from the drifting. The ground terminal node can compute an update to a beam assignment map having a reassignment of the identified user terminals from their presently servicing spot beams to another of the spot beams in a manner that seeks to address at least some of the signal quality impact identified as associated with the drifting. Some embodiments further account for load balancing, and/or other factors, and/or can maintain stateful communications between the reassigned user terminals and the geostationary satellite.
Patent PT-100014-A (PT)
Inventor: MULLER HANS RUDOLF
IPC: C07D475/04
Filed: 1992-01-15
Abstract: The invention relates to a process for the preparation of (6S)- and (6R)-tetrahydrofolic acid and the addition salts thereof with a sulphonic acid or with sulphuric acid, which is characterised in that (6R,S)-tetrahydrofolic acid is reacted with a sulphonic acid or with sulphuric acid, resulting acid addition salt is fractionally crystallised and, if desired, the (6S)- or (6R)-tetrahydrofolic acid is liberated from the resulting diastereomeric acid addition salts by treatment with a base and isolated. The invention additionally relates to the novel acid addition salts of (6S)- and (6R)-tetrahydrofolic acid with a sulphonic acid or with sulphuric acid, to their use as a medicament or starting material for the production of a medicament and to their use for the preparation of optically active 5-methyl-, 5-formyl- and 5,10-methylenetetrahydrofolic acids and the salts thereof with strong bases and acids.
Patent PT-104033-A (PT)
Title: Sistema sanduíche mutável na produção de portas
Inventor: ALMEIDA PEDRO PONTES PIMENTA D
IPC: E06B3/72
Filed: 2008-04-26
Abstract: O SISTEMA SANDUÍCHE É UM SISTEMA ENVOLVIDO NA PRODUÇÃO DE PORTAS, CUJO OBJECTIVO É PERMITIR A COMPLETA PERSONALIZAÇÃO DAS MESMAS POR PARTE DO UTILIZADOR. E UM SISTEMA CONSTITUÍDO PELA SOBREPOSIÇÃO DE 3 CAMADAS: AS 2 EXTERIORES (1 E 2) QUE CONSTITUEM AS FACES DA PORTA E A INTERIOR O SEU RECHEIO (3), COMPOSTO POR ESTRUTURA (5) E PLACAS AMOVÍVEIS (7). NESTA ÚLTIMA CAMADA RESIDE O PONTO FUÍCRAL DA NOSSA INVENÇÃO/REIVINDICAÇÃO, SENDO QUE AS PEÇAS MODULARES (7) QUE A CONSTITUEM PODEM SER REMOVIDAS OU APLICADAS PELO UTILIZADOR QUE, INTERAGINDO COM A PORTA, PODE MODIFICAR A SUA APARÊNCIA. SÃO PEÇAS (7) QUE PODEM POSSUIR INÚMEROS MATERIAIS, TEXTURAS, CORES, NÃO SE RESTRINGINDO ASSIM O SISTEMA SANDUÍCHE A UM TIPO DE DESENHO ESPECÍFICO MAS SIM A UM MODO DE PRODUÇÃO INDUSTRIAL. AS FACES EXTERIORES DA PORTA INTERAGEM COM O JÁ REFERIDO RECHEIO, ATRAVÉS DAS ABERTURAS NELAS EFECTUADAS (4) E TAMBÉM ESTES NÃO POSSUEM UM DESENHO RESTRITIVO NEM OBRIGATORIAMENTE IDÊNTICO EM AMBAS AS FACES. O SISTEMA SANDUÍCHE NÃO IMPLICA NOVAS MAQUINARIAS NA PRODUÇÃO DE PORTAS, MAS, APROVEITANDO AS EXISTENTES PROCURA DAR UM NOVO ÂNIMO A ESTE TIPO DE INDÚSTRIA.
Patent PT-104047-A (PT)
Title: Alimentador para aves (tremonha)
Inventor: SARAIVA ANGELINO AUGUSTO
IPC: A01K5/01
Filed: 2008-04-26
Abstract: A PRESENTE INVENÇÃO DIZ RESPEITO A UM EQUIPAMENTO CINEGÉTICO-AGRO-PECUÁRIO, QUE CONSISTE NUM RESERVATÓRIO DE ARMAZENAMENTO E DISTRIBUIÇÃO DE ALIMENTOS PARA AVES. TECNICAMENTE PRETENDE-SE COM ESTE INVENTO DIMINUIR O DESPERDÍCIO DE ALIMENTO, ATRAVÉS DO CORPO PRINCIPAL (1) EM CONJUNTO COM O CANAL DUPLO SEMI-CIRCULAR DE ALIMENTAÇÃO (3) QUE É ABASTECIDO POR GRAVIDADE EM FUNÇÃO DO CONSUMO, DIMINUINDO O DESPERDÍCIO. A FORMA GEOMÉTRICA DO ALIMENTADOR POSSIBILITA A COLOCAÇÃO DE VÁRIOS EM LINHA, FORMANDO CORREDORES E PERMITINDO A SEPARAÇÃO DE TAMANHOS OU ESPÉCIES DE AVES. A GRANDE CAPACIDADE DE ARMAZENAMENTO, SEM DESPERDÍCIO DE ALIMENTO PARA O EXTERIOR DO ALIMENTADOR AUMENTA A HIGIENE LOCAL E DIMINUI A PERIODICIDADE DE ABASTECIMENTO. ESTES ALIMENTADORES SERÃO FABRICADOS EM MADEIRA OU PLÁSTICO. EXISTE TAMBÉM A POSSIBILIDADE DE APLICAR UMA TAMPA NA PARTE SUPERIOR, PERMITINDO DESTA FORMA A UTILIZAÇÃO DO ALIMENTADOR NO EXTERIOR.
Patent PT-105167-A (PT)
Title: Dispositivos de alimentação e de doseamento para microinjecção
Inventor: REMIGIO BRUNO MIGUEL PEREIRA
IPC: B29C45/20
Filed: 2010-06-18
Abstract: O PRESENTE INVENTO DIZ RESPEITO A UM DISPOSITIVO DE ALIMENTAÇÃO E DE DOSEAMENTO PARA MICROINJECÇÃO QUE INTEGRA SOLUÇÕES CONSTRUTIVAS INOVADORAS RELATIVAMENTE ÀS DISPONÍVEIS NO MERCADO. NA COMPONENTE DE ALIMENTAÇÃO, É DE REALÇAR A EXISTÊNCIA DE UM MECANISMO DE ROTAÇÃO DA TREMONHA (TREMONHA ARTICULADA) QUE, PARA ALÉM DE CONDICIONAR A PASSAGEM DE MATERIAL PARA A CÂMARA DE PLASTIFICAÇÃO, PERMITE A REMOÇÃO DESTE SEM SER NECESSÁRIO PROCEDER À SUA DESMONTAGEM, ASSEGURANDO NÃO SÓ A UTILIZAÇÃO ECO-EFICIENTE DE MATERIAIS DE ELEVADO DESEMPENHO/CUSTO, MAS TAMBÉM O AUMENTO DA CADÊNCIA DE PRODUÇÃO. NA COMPONENTE DE DOSEAMENTO, A INOVAÇÃO PASSA PELA EXISTÊNCIA DE UMA VÁLVULA ROTATIVA DE CORPO CILÍNDRICO, COM ACCIONAMENTO PNEUMÁTICO, HIDRÁULICO OU ELÉCTRICO, QUE ASSEGURA O CONTROLO PRECISO DO DOSEAMENTO DO MATERIAL E EVITA O REFLUXO DESTE PARA A CÂMARA DE PLASTIFICAÇÃO DURANTE A INJECÇÃO, VIABILIZANDO A SUA RECUPERAÇÃO NO DOSEAMENTO SEGUINTE, LOGO EVITANDO A SUA DEGRADAÇÃO E CONSEQUENTE CONTAMINAÇÃO DO PROCESSO.
Patent RO-85276-A (RO)
Inventor: STORNI ANGELO
IPC: C07D277/54
Filed: 1982-10-22
Abstract: Compounds of the formula    <IMAGE>  (I)  in which one of the symbols R1 and R2 represents an alkyl radical that has 3 or 4 carbon atoms and is unsaturated in the 2,3-position, and the other represents such a radical or lower alkyl, R3 and R4 each represents, independently of the other, hydrogen or methyl, and A represents a radical of the formula   <IMAGE>  in which Z1, or each of Z2 and Z3 independently of the other, represents hydrogen or lower alkyl, or Z2 and Z3 together represent lower alkylene, and salts of such compounds in which Z1, or Z3 and optionally also Z2, represent(s) hydrogen, exhibit tumor-inhibiting activities.
Patent RU-94016423-A (RU)
Inventor: ARTEMOV S V
IPC: C08J11/02
Filed: 1994-04-29
Abstract: FIELD: organic synthesis. SUBSTANCE: recovery of dimethyl sulfone is based on its crystallization followed by additional extraction of diluted aqueous mother solution with organic liquids. Mother solution after extraction of reaction mass of synthesis of poly- and copolyether sulfones is used for said crystallization. EFFECT: improves efficiency of method. 4 cl
Patent RU-94017511-A (RU)
Inventor: MAKEEV A M
IPC: A61H23/00
Filed: 1994-05-12
Abstract: FIELD: medicine. SUBSTANCE: during execution of mobilization of the lumbar part of the vertebral column, it is suggested to additionally stand the patient on his one foot on the floor and the other foot is raised and stretched, while the torso is inclined to assume the horizontal position. The operator takes the raised lower extremity at its base near the talocrural part. Additionally, the operator takes the patient's neck from the back side and thrusts with his bent leg (knee) the patient lumbar part and moves it in the horizontal plane to himself the gripped lower extremity and neck. When taking the patient's neck, the operator raises his hand to the shoulder level bends it in the elbow, presses to himself, and hand for gripping the patient's neck from the back side, turns to the patient's neck side. EFFECT: higher efficiency.
Patent RU-94027003-A (RU)
IPC: B01D27/00
Filed: 1994-07-18
Abstract: FIELD: filtration of liquids in various hydraulic systems. SUBSTANCE: filter has housing with filter element mounted coaxially. Taper bush is mounted concentrically between housing and filter element with its narrowing portion downward, thus forming two circular passages interconnected by chamber between bottom of housing and filter element. Acceding flow passage is widened in way of flow of liquid. Bottom of housing which connects it with settling chamber and bottom of filter element are made according to curvilinear profiles to ensure continuous expansion of liquid contained in chamber between them and smooth change of descending flow to ascending flow. EFFECT: enhanced efficiency. 3 cl, 1 dwg
Patent RU-94029845-A (RU)
Inventor: PETROV K V
IPC: E02D37/00
Filed: 1994-08-15
Abstract: FIELD: running maintenance of man-made structures, repairs of stone, concrete supports, span structures. SUBSTANCE: aim is to decrease labour and materials consumption, increase of repairs productivity. Method and apparatus for repairs of supports, span structures provides for opening boreholes with step of 1.2 - 1.8 m and 0.3 - 1 consistency cement mortar delivering in it. The method does not have following operations: borehole water and caustic soda solution cleansing, compressed air blowing through, peptizing agent solution and addition to mortar, pressure changes of mortar delivery. Water-cement mixture of 0.3 - 1 consistency is delivered through external electrode and big series of discharges is exercised in working itself or other above located cavity with following lifting electrodes and exercising significantly smaller number of discharges at each level. Internal electrode is made in the form of four dielectric material covered tabs of square section located at angle of 90 deg to each other and at angle of 45 - 60 deg to own vertical axis and its upper ends form supporting site, that transforms into main and additional cylinders with fixed on them extinguishing rings. Each ring is shifted in respect to below located ring. EFFECT: decreased labour and materials consumption, increased repairs productivity.
Patent RU-94032194-A (RU)
Inventor: KHODORKOV I L
IPC: F16L53/70
Filed: 1994-08-31
Abstract: FIELD: cryogenic engineering. SUBSTANCE: device is made from easily deformable low-heat-conducting profiled material (for example, porolon); its length shall be sufficient for overlapping the structure to be cooled over its perimeter. Profile of structure forms three passages. Central passage includes perforated pipe located over cooling perimeter; this pipe is supplied with cryogenic fluid. Vapor formed due to contact with surface is evacuated through two lateral passages, thus making it possible to fully use cooling capacity of cryogenic fluid and reducing its consumption. Heat-insulating properties of material of structure reduce external heat input to surface being cooled, thus reducing consumption of cooling agent. Easily deformable material used in structure makes it possible to quickly and reliable seal internal cavities over surface being cooled at different level of roughness due to external pressing of walls, thus facilitating assembly of device in-situ. EFFECT: improved operational parameters, reduced consumption of cooling agent, reduction of cooling time and facilitated assembly.
Patent RU-94034013-A (RU)
Inventor: SHESTERKIN N D
IPC: F04D23/00
Filed: 1994-09-15
Abstract: FIELD: pump building. SUBSTANCE: electropump plant includes solar battery to converse solar radiation into D.C., voltage converter to generate alternating high-frequency rectangular voltage of up 200 V amplitude, reservoir capacitor, building-out capacitor, two controllable switches with one placed in a circuit in series, and another in parallel to electropump. Among others are pulse generator to generate enabling pulses for the controllable switches, and threshold device to find switching-off moment for the controllable switches. EFFECT: increased capacity. 2 dwg
Patent RU-94035333-A (RU)
Inventor: KAABAK L V
IPC: C07C17/12
Filed: 1994-09-22
Abstract: FIELD: synthesis of organic compounds. SUBSTANCE: claimed process for preparing trifluoromethyl- 3,4-dichlorobenzene with yield of 92% comprises treating trifluoromethyl-4-chlorobenzene with elementary chlorine in the presence of catalytic amounts of ferric chloride- phosphorus pentachloride complex at trifluoromethyl-4- chlorobenzene to chlorine molar ratio of 1: 1.1-1.2 at room temperature. The ferric chloride-phosphorus complex catalyst results from chlorination of iron chips and phosphorus trichloride in trifluoromethyl-4-chlorobenzene directly in reactor. The claimed process is advantageous in that is has high yield (up to 92%) of the desired product, ecological and simple to be carried out and also uses products manufactured at Russian enterprises as starting raw materials. EFFECT: more efficient preparation process.
Patent RU-94036694-A (RU)
Inventor: SAKHAROV V S
IPC: B32B13/00
Filed: 1994-09-30
Abstract: FIELD: manufacture of building materials. SUBSTANCE: facing panels employed for finishing public, administrative and other buildings are manufactured with preliminarily applying onto the formation surface 0.7-1.5-mm layer of a dry gypsum binder, which is then moistened with aqueous solution until cracks are formed. Cracks are then deformed by means of applying a second layer of dry binder being simultaneously water-sprinkled, whereupon material is covered with basis layer, hardened and transformed to desired parts. EFFECT: improved procedure.
Patent RU-94037804-A (RU)
Inventor: MIGAL V M
IPC: G01S5/04
Filed: 1994-10-07
Abstract: FIELD: radars. SUBSTANCE: method involves calculation of systematic errors of measuring of location angles by means of application of time-invariant characteristics which describe geometry of ranging, calculation of real location angles for objects and detection of their position by means of azimuth-location determination method. Systematic errors of measuring of location angles are calculated by processing of information about location angles to radio range beacon with a priori known coordinates x, yand about reconnaissance plan coordinates x, y; under condition that reconnaissance plan flies along straight line at constant height with respect to radio range beacon. Time invariance of height leads to(1), where ε= ε+Δε and Dis location angle of radio range beacon and distance from i-th point of route of reconnaissance plan to radio range beacon; Δε is constant systematic error. Resolution of (1) with respect to De leads to AtgΔε+BtgΔε+C = 0, (2) where$. (2) provides possibility to calculate Δε. Series of such measurements provides possibility to calculate several values of systematic error Δε:Δε, Δε,..., Δε. Methods of optimal evaluation are used for assessing error in measuring of location angle. EFFECT: increased precision.
Patent RU-94044981-A (RU)
Inventor: TARASOV A A
IPC: E21D11/10
Filed: 1994-12-27
Abstract: FIELD: devices for mechanization of concrete work in mine working support. SUBSTANCE: system for loading of concrete placer has concrete placer with receiving bin, wagon for delivery of concrete mix to point of concreting, and winch with wire rope for hoisting and tipping of wagon body into bin of concrete placer. Bin has levers installed for turning them relative to bin walls. Body side walls have journals and end walls of body upper part have stops. EFFECT: simplified design and reduced labor input in work. 3 dwg
Patent RU-94045495-A (RU)
Inventor: PAVLIKHINA I JU
IPC: D03D15/283
Filed: 1994-12-28
Abstract: FIELD: industrial fabrics; applicable in manufacture of special-purpose articles and jackets for fencing with electric rapiers and electric swords. SUBSTANCE: industrial fabric is made with fine- pattern weave and containing systems of warp and weft threads each of which includes chemical threads and metallic threads. Fabric has doubled weft threads from metallic threads and single chemical one. Warp consists of chemical threads with diameter 2-3 times as large as weft thread diameter. Weaving pattern has weft repeat of 6 threads of which 4 are metallic threads, and warp pattern has repeat of 4 threads. Warp metallic threads are located in each fifteenth warp repeat. EFFECT: increased friction wear resistance and electric conduction and reduced rigidity of fabric.
Patent RU-95100449-A (RU)
Inventor: ARTEMOV I V
IPC: B07B15/00
Filed: 1995-01-11
Abstract: FIELD: agricultural equipment for cleaning and sorting seeds by expansion and other properties. SUBSTANCE: separator has feeder and deflecting surface, which are positioned within separating and feeding device, and discharge device. Separating and feeding device has cylinder with horizontal or inclined axis. Cylinder may be provided with openings or separating members formed as cells, needles, friction coat or bifilar winding on inner surface. Separating and feeding device may be provided with power system such as pneumatic system, electromagnet, electrodes or combinations of above mentioned members. EFFECT: increased separating efficiency, wider operational capabilities and enhanced reliability in operation. 11 cl, 1 dwg
Patent RU-95100702-A (RU)
Inventor: MAJOROV V A
IPC: B01D53/44
Filed: 1995-01-17
Abstract: FIELD: microbiological production. SUBSTANCE: method is carried out by passing gas air exhaust through biologically active material, filtration rate being 0.03-0.15 m/s. Said passing takes place from bottom to the top, said biologically active material being impregnated by culture medium. Straw of cereals is used as base material for said biologically active material. Proposed filtration material is cooled from its top with the help of atmospheric air. EFFECT: improves efficiency of the method.
Patent RU-95101245-A (RU)
Inventor: BLINKOV V A
IPC: B21D1/00
Filed: 1995-01-31
Abstract: FIELD: plastic metal working, namely machine engineering processes, particularly straightening flat products from carbon and alloyed steels. SUBSTANCE: method of straightening flat products of carbon and alloyed steels involves compression of product between plates, heating it and soaking. Novelty is arrangement of flat plate on wheeled out hearth of furnace, placing one or more products onto it to be clamped from upwards by two or more plates having thickness 300-600 mm; wheeling hearth to furnace, heating products up to temperature equal to critical point Ac1 - 20 C, soaking at such temperature during 5-7 hours, air cooling up to 20 C. EFFECT: increased efficiency. 1 cl
Patent RU-95103548-A (RU)
Inventor: BELJAEV A A
IPC: B32B25/18
Filed: 1995-03-13
Abstract: FIELD: civil engineering. SUBSTANCE: multi-layer roofing is made in the form of clothes including at least two functional layers containing the base and bitumen impregnating cover layers and interlayer. As this takes place highly elastic bitumen-polymeric layer is used as the lower layer adjoining the base. The layer has block- co-polymer-styrol-butadien-styrol. Polyethylene film of 0.012 - 0.015 mm thinness is used as sublayer, or quartz sand of the following granulometric composition (% by weight): 0.1 - 0.2 of 0.50 - 1.250 mm size, 13.0 - 14.7 of 0.30 - 0.50 mm size, 85.0 - 87.0 of 0.15 - 0.30 mm size, the dust being the balance. EFFECT: higher reliability. 3 cl, 2 tbl