baber/WOPTO huggingface dataset:
Patent RU-2036196-C1 (RU)
Inventor: TIBOR TIMAR
IPC: C07D493/04
Filed: 1990-07-20
Granted: 1995-05-27
Abstract: FIELD: organic chemistry. SUBSTANCE: product: (±) -6-cyano- 3,4- dihydro-2,2-dimethyl-trans -4-(2-hydroxo-1-pyr- rolidinyl)-2H-1- benzopyran-3-ol (cromacalim). Reagent 1: 4-cyanophenol. Reagent 2: isoprene. Process conditions: at 30-120 C in solvent medium in the presence of alkaline metal and/or catalyst. Reagent 3: 6- cyano -3,4- dihydro - 2,2- dimethyl -2H-1- benzopyran at 40-150 C is brominated at position 4 of benzenepyran ring. Reagent 4: (±) -4- bromo-6- cyano - 3,4- dihydro -2,2- dimethyl -2H-1- benzopyran is dihydrobrominated. Reagent 5: 6- cyano- 3,4-dihydro -2,2- dimethyl -2H-1- benzopyran. Reagent 6: N-bromosuccinimide. Process conditions: in solvent medium at 20-120 C. Reagent 7: 6-cyano -3,4- dihydro- 2,2- dimethyl -trans-3- bromo-4- hydroxo -2H-1- -benzopyran. Reagent 8: 2-pyrrolidone. Process conditions: in the presence of alkaline metal or alkaline metal alcoholate at 20-100 C. Yield of the end product is 55-65%. Synthesized compound is used in medicine. EFFECT: improved method of synthesis, increased yield. 11 cl
Patent RU-2023929-C1 (RU)
Inventor: KOZHIN BORIS A
IPC: F16L3/22
Filed: 1990-07-10
Granted: 1994-11-30
Abstract: Сущность изобретения, на фундаменте установлена пространственная металлическая решетчатая колонна, имеющая чутырехугольное поперечное сечение. В углах колонны в основании расположены опорные базы несущих ветвей на крепежных элементах. Трубопровод щарнирно-неподвижно установлен на колонне, выполненном с поперечным сечением в виде ромба, одна из диагоналей которого установлена вдоль оси трубопровода. Расположенная под опорными базами верхняя поверхность фундамента выполнена с уклонами, направленными от центра ромба к базам. В центре колонны размещена дополнительная опорная база, шарнирно-неподвижно соединенная с фундаментом. Базы ветвей установлены к фундаменту и крепежным элементам с зазорами и с возможностью поворота колонны на дополнительной базе на величину больше ее поворота от наибольших температурных перемещений трубопровода до жесткого соединения колонны с фундаментом. 8 ил.
Patent RU-2007429-C1 (RU)
Title: Способ получения кислотного желтого моноазокрасителя
Inventor: LUCHKEVICH EVGENIJ R
IPC: C09B29/10
Filed: 1990-08-07
Granted: 1994-02-15
Abstract: Сущность изобретения: способ получения кислотного желтого азокрасителя заключается в сочетании диазотированной метаниловой кислоты с азосоставляющей - резорцинформальдегидной смолой при массовом соотношении, равном 0,88 - 0,98 : 1 соответственно, при 8 - 12С и рН 5,5 - 5,9. Выход красителя составляет 90 - 93,4% . Краситель получают в непылящей форме. 1 табл.
Patent RU-2018735-C1 (RU)
Title: Block bearing
Inventor: ISTKHEM DEVID RAJMOND
IPC: F16C33/12
Filed: 1991-03-01
Granted: 1994-08-30
Abstract: FIELD: mechanical engineering. SUBSTANCE: bearing has covering layer which is applied by cathode spraying. Covering layer may be made in form of aluminium matrix containing dispersed phase of tin and may have relatively low content of tin near the substrate interface which rises to relatively high level at the surface. Surface may be essentially a layer of pure tin which acts as protective covering layer during initial operation of bearing. EFFECT: enhanced reliability. 15 cl, 3 dwg
Patent RU-2028718-C1 (RU)
Title: Synchronous machine
Inventor: STRIZHKOV IGOR G
IPC: H02P1/50
Filed: 1991-01-08
Granted: 1995-02-09
Abstract: FIELD: electrical engineering. SUBSTANCE: synchronous machine has main windings 1, 2 and supplementary winding 3 provided with additional key 7 connected to three-phase bridge rectifier 5 with terminals of excitation winding 4. Three-phase terminals of rectifier 5 are connected to center taps of windings 1, 2. EFFECT: expanded functional capabilities. 1 dwg
Patent RU-2012380-C1 (RU)
Title: Aeroionizer
Inventor: BEZRUKIKH EVGENIJ G
IPC: A61N1/44
Filed: 1991-03-28
Granted: 1994-05-15
Abstract: FIELD: medical and domestic appliances. SUBSTANCE: aeroionizer has an electroconductive cuvette filled with water and attached to a speeding-up electrode with the aid of brackets covered with high-voltage dielectric material. EFFECT: enhanced efficiency in saturating air with light negative aeroions and cleaning air from dust. 2 dwg
Patent RU-2017970-C1 (RU)
Title: Combine for formation of mine workings
Inventor: NEZAMETDINOV AJDAR B
IPC: E21D9/11
Filed: 1991-02-27
Granted: 1994-08-15
Abstract: FIELD: mining industry. SUBSTANCE: combine has running gear, frame, turning platform, body, hollow boom, power cylinders for boom turning, rock breaking member and loading member. Rock breaking member is made in form of blasting chamber with central hole. Blasting chamber accommodates device for ignition of explosive. Located inside body is device for preparation and metering of explosives which is communicated with inner space of blasting chamber by means of pipeline for supply of hot-flowing explosive. Device for prevention of explosive flowing from blasting chamber inner space is installed in central hole of blasting chamber. Located at outlet of pipeline supplying explosive is device for prevention of blast wave from penetration into pipeline. EFFECT: higher efficiency. 2 dwg
Patent RU-2012758-C1 (RU)
Title: Percussive device for hole drilling
Inventor: VERSTOV VLADIMIR V
IPC: E21B4/06
Filed: 1991-03-12
Granted: 1994-05-15
Abstract: FIELD: drilling. SUBSTANCE: device includes hollow shaft 2 with circular anvil 4, rock cutting tool 1 which is secured to lower part of circular anvil. Circular percussive weight 3 with toothed bosses 7 is installed coaxially to shaft 2. Circular anvil 4 has toothed bosses 7 interacting toothed bosses of circular percussive weight. Upper and lower parts of circular percussive weight have recesses 8 and 9 uniformly spaced over its periphery. Installed in recesses are sleeves for longitudinal motion. Ribs 15 of circular percussive weight are made in form of flexible arc-shaped members whose ends are hinged to sleeves. EFFECT: higher efficiency. 3 dwg
Patent RU-2033488-C1 (RU)
Title: Drying cylinder
Inventor: TOCHIGIN ANATOLIJ ALEKSEEVICH
IPC: D21F5/10
Filed: 1991-06-17
Granted: 1995-04-20
Abstract: FIELD: wood-pulp and power paper industry and light industry. SUBSTANCE: drying cylinder has a casing, and covers with hollow journals and a steam-trapping device. Turbolizing members are mounted on the central shaft by means of radial suspensions. The central shaft is built up in length. Its one fixed part has a drive shaft installed on additional radial suspensions and carrying disks. The disks come in contact with the inner surface of the drying cylinder. The drive shaft carries a gear engaged with a driven gear installed on the other part of the central shaft. This part of the central shaft is mounted for rotation and carries the turbolizing members. EFFECT: improved design. 2 dwg
Patent RU-2011677-C1 (RU)
Title: Method of drilling fluid preparing
Inventor: ZELTSER PAVEL YA
IPC: C09K8/20
Filed: 1991-06-05
Granted: 1994-04-30
Abstract: FIELD: drilling of oil and gas holes. SUBSTANCE: method of drilling fluid preparing involves the dissolution of sodium hydroxide in water and heating of solution up to 80-85 C. Part of finely dispersed silica is added to the heated solution, and water glass is prepared. Water glass prepared is mixed with the residual part of finely dispersed silica and aqueous solution of reagent - stabilizing agent. Carboxymethylcellulose is used as reagent - stabilizing agent. Components indicated above are used at the following ratio, wt. -% : finely dispersed silica 5.7-16.8; sodium hydroxide 0.42-1.06; carboxymethylcellulose 0.3-2.0, and water - the rest. EFFECT: improved method of drilling fluid preparing. 1 tbl
Patent RU-2000935-C1 (RU)
Inventor: KVASENKOV OLEG I
IPC: B29C31/00
Filed: 1991-10-08
Granted: 1993-10-15
Abstract: Использование дозированна  загрузка волокнистыми  пресс-материалами пластикаторов и таб-  лет-машины Сущность шипы на барабане размещены  с посто нным шагом по винтовой линии На  ленте шипы размещены по параллельным наклонным  пр мым. Кинематическа  св зь между барабаном  и приводным барабаном выполнена с передаточным  отношением, определ емым по формуле xZ/SxR где Р - шаг между параллельныопр ми пр мыми шипов ленты, м, к R - радиус барабана  и приводного барабана, соответственно, м Z -  число заходов винтовой линии шипов барабана S -  ход винтовой линии шипов барабана м Шипы расположены  с соблюдением соотношени  , где а -угол подъема винтовой линии шипов барабана. Э -угол наклона пр мых шипов ленты к оси вращени  приводного барабана Такое размещение  конструктивных элементов стабилизирует производительность  путем исключени  пульсации загрузки  Зил
Patent RU-2003149-C1 (RU)
Inventor: LAPTEV LEONID P
IPC: G02B27/48
Filed: 1991-09-02
Granted: 1993-11-15
Abstract: Использование: в лазерных осветительных  приборах Сущность изобретени : световод выполнен  в виде цилиндрического стержн  из оптического  стекла имеющего внутри мелкодисперсные, равномерно  распределенные по объему вкраплени   пузырьков воздуха. К одному из торцов стержн   подключен выход лазера, а на противоположном  торце выполнено зеркальное отражающее покрытие . Отражатель имеет форму усеченного конуса,  лазер при этом вынесен за пределы корпуса дл   обеспечени  лучшего охлаждени . 1 ил
Patent RU-2027447-C1 (RU)
Title: Apparatus for producing saline aerosol
Inventor: KOVALEV OLEG V
IPC: A61M15/00
Filed: 1991-08-28
Granted: 1995-01-27
Abstract: FIELD: medical engineering, particularly, apparatuses designed for individually treating affected respiratory tracts and allergic diseases. SUBSTANCE: this apparatus includes rotatable housing that has horizontal partition in its central portion having through holes, inlet and outlet connections, air conduit, and connecting member for patient. Partition divides housing into two intercommunicating chambers capable of varying their holding capacities and having perforated plates. EFFECT: more sophisticated design. 1 dwg
Patent RU-2007923-C1 (RU)
Title: Cheese-making method
Inventor: PER SPONKHOLTTS
IPC: A23C19/08
Filed: 1991-11-06
Granted: 1994-02-28
Abstract: FIELD: dairy industry. SUBSTANCE: milk to be processed into cheese is condensed by ultrafiltration to dry matter content as in cheese. The concentrate is mixed with coagulating agent, and cheeses are molded in packages for marketing. EFFECT: simpler method; higher product quality. 5 cl, 1 dwg
Patent RU-2037670-C1 (RU)
Inventor: RAKHIMOV SHAVKAT KHUDARGENOVIC
IPC: F04F5/02
Filed: 1991-07-22
Granted: 1995-06-19
Abstract: FIELD: pump engineering. SUBSTANCE: inner side of the metallic housing of the nozzle is constructed as conjugated housings having the common base. The flexible bushing made of a resilient material is separated by the ring slot into the outer part and inner part made up as conjugated tabs of triangle cross- section. The housing is separated by lateral baffle into spaces in which plungers having common rod are housed. Springs are housed in the space arranged from the side of resilient part of the nozzle. The other space is in communication with the nozzle branch pipe. EFFECT: enhanced reliability. 3 dwg
Patent RU-2007970-C1 (RU)
Inventor: KOZHANOV LEONID G
IPC: A61F2/02
Filed: 1991-12-27
Granted: 1994-02-28
Abstract: FIELD: medicine. SUBSTANCE: apparatus is in the form of an outer tube, having a handle on its one end, a half-tube on its other end and a half-tube with a flange, arranged inside of the outer tube. The flange is mounted with possibility of rotation relative to the outer tube, also having a spring-loaded pusher. The apparatus is provided by an additional pusher in the form of two spring-loaded rods, supporting a slide. EFFECT: non-traumatic introducing and removing of the voice prosthesis. 1 cl, 2 dwg
Patent RU-2013463-C1 (RU)
Inventor: SHCHERBAKOVA GALINA K
IPC: C22F1/08
Filed: 1991-11-11
Granted: 1994-05-30
Abstract: FIELD: production of aluminium bronze. SUBSTANCE: half-finished articles are calcined. the process is carried out by heating together with furnace to 470-510 C and by sustaining within 3-3.5 h. Then stepped heating including heating to 600-650 C and sustaining within 0.5-1 h followed by heating to 880-920 C and sustaining within 2.0-2.5 h takes place. Then cooling in oil and tempering at 300-380 C within 3-3.5 h are carried out. EFFECT: improves strength and plastic properties of desired product. 1 tbl
Patent RU-2018122-C1 (RU)
Title: Method of determination of oxyethylated alkylphenol in synthetic detergents containing glycerol
Inventor: AKHMETOVA TANZILYA I
IPC: G01N31/00
Filed: 1992-03-02
Granted: 1994-08-15
Abstract: FIELD: analytical chemistry. SUBSTANCE: determination of oxyethylated alkylphenols is carried out visually as a volume of chloroform layer obtained by sample extraction with chloroform and settling in measuring cylinder in the presence of boric acid. Mass ratio of oxyethylated alkylphenols and chloroform is 1: (3-4), and mass ratio of glycerol and boric acid is 1: (0.6-0.7). EFFECT: improved method of determination. 2 tbl
Patent RU-2057648-C1 (RU)
Title: Punching machine for multicavity seamless stamping
Inventor: BLIK FEDOR S
IPC: B30B15/00
Filed: 1992-01-23
Granted: 1996-04-10
Abstract: FIELD: plastic metal working. SUBSTANCE: upper plate is equipped with central mandrel carrying upper punch, with embracing it additional traverse and circular girdle with conical hole hard-mounted between themselves and with vertical hydraulic cylinders the housings of which are fixed in upper plate and the stems are secured in circular girdle. Central cradle with running-in cone is made in traveling table. Bearing washer with its possible shifting together with dies by means of central ejector is mounted in cylindrical part of cradle. Conical surfaces are made from face ends of die. Upper surface contacts with conical hole of circular girdle. Lower surface contacts with running-in end of central cradle of movable table. At least two opposite lying horizontal broaching systems are equipped with additional sliders connected with dies and additional hydraulic cylinders. Central holes are made in sliders. Broaching punches are set up in holes for their displacement relative to sliders. EFFECT: expanded technological capabilities and enhanced factor of metal utilization. 3 dwg
Patent RU-2058783-C1 (RU)
Title: Agent for mouth mucosa treatment
Inventor: OLESHKO LIDIYA N
IPC: A61K36/41
Filed: 1992-04-20
Granted: 1996-04-27
Abstract: FIELD: pharmaceutical industry, medicine. SUBSTANCE: agent is prepared by mixing plant raw extracts showing adaptogenic action with film-forming agent, plasticizer and water taken at the definite ratio followed by film mass drying. EFFECT: enhanced effectiveness of mouth mucosa treatment.
Patent RU-2058762-C1 (RU)
Title: Atrificial crystalline lens
Inventor: FEDOROV SVYATOSLAV N
IPC: A61F2/16
Filed: 1992-06-29
Granted: 1996-04-27
Abstract: FIELD: medicine; ophtalmology. SUBSTANCE: optical part of artificial crystalline lens of an eye is made of two flat-convex lenses, which are connected by flat surfaces. Optical axes of the lenses are shifted one relatively the other. EFFECT: improved efficiency of correction of vision. 3 cl, 4 dwg
Patent RU-2076421-C1 (RU)
Title: Synchronous load power control technique
Inventor: NEVELSKIJ VALERIJ L
IPC: H02J3/24
Filed: 1992-06-30
Granted: 1997-03-27
Abstract: FIELD: electrical engineering: automatic emergency control facilities of power systems. SUBSTANCE: active power of synchronous load is measured, pre-accident value of active power is stored, its maximum value during accident is recorded, permissible slip of synchronous machine rotor is determined by current parameters, current slip is measured, and if it equals or exceeds permissible value, emergency condition of synchronous load is recorded as unsteady condition, and signal is shaped for reducing its power. EFFECT: improved reliability of accident control. 3 dwg, 1 tbl
Patent RU-2056860-C1 (RU)
Title: Method for testing functional state of a sportsmen
Inventor: DIKAREV VIKTOR I
IPC: A61K39/00
Filed: 1992-06-29
Granted: 1996-03-27
Abstract: FIELD: medicine. SUBSTANCE: method involves examining blood in process of applying physical loading to determine phagocytic activity of neutrophils according to Right method. Lack of training is considered to take place, if index value being equal to 0.5-1.5. The index value being equal to 1.6-1.5, trained state is considered to take place. Contact transducer is mounted in shoes of sportsmen. Piezoelectric transducer is fixed on one of the sportsman wrists to form a series of rectangular pulses for modulating amplitude and phase of high frequency oscillations which are transmitted into the ether to be received demodulated, recorded later with the aim to estimate speed at which sportsmen move, their pulse rates, skill in overcoming distance and uniformity of power distribution over the whole distance. The miniature emitters are mounted on the sportsmen and receivers are mounted at start place. EFFECT: enhanced effectiveness medical examination of sportsmen. 1 tbl
Patent RU-2102174-C1 (RU)
Inventor: KUTUSHOV GARRIJ ANTONOVICH
IPC: B21D26/06
Filed: 1992-07-29
Granted: 1998-01-20
Abstract: FIELD: plastic metal working in sheet forming and drawing. SUBSTANCE: blank is located in liquid between two mutually movable member. The latter are drawn together mechanically and blank is acted upon by shock wave formed in this case. Blank is located in zone of liquid maximum pressure. Projected area of the small member of two mutually movable members onto plane square to direction of drawing together exceeds at least by 20 times the area of zone of blank treatment and exceeds at least by 50 times the area of periphery gap between movable members. EFFECT: higher efficiency. 2 cl, 4 dwg
Patent RU-2055754-C1 (RU)
Title: Internal combustion engine air supply system
Inventor: FESINA MIKHAIL I
IPC: B60K13/02
Filed: 1992-05-26
Granted: 1996-03-10
Abstract: FIELD: automotive industry. SUBSTANCE: internal combustion engine air supply system has additional housing enclosing air intake branch pipes and air cleaner. Air is evacuated from space thus formed. EFFECT: enhanced reliability of air supply. 3 cl, 1 dwg
Patent RU-2028510-C1 (RU)
Title: Oil-well sucker-rod pump unit
Inventor: KHUSAINOV ZINUR M
IPC: F04B47/02
Filed: 1992-09-18
Granted: 1995-02-09
Abstract: FIELD: pump engineering. SUBSTANCE: each balancing counterweight of bed-rocker is hollow and provided with flexible container for fluid and branch pipes for supplying and discharging fluid into the flexible container. The container is mounted for deforming with a plate. EFFECT: enhanced efficiency. 2 dwg
Patent RU-2051120-C1 (RU)
Title: Pulse device for electromagnetic demineralization of solutions
Inventor: TOROPOV VLADIMIR PAVLOVICH
IPC: C02F103/08
Filed: 1992-05-22
Granted: 1995-12-27
Abstract: FIELD: water treatment. SUBSTANCE: casing with inlet and outlet branch pipes and pipe unions, electromagnet and partitions accommodates a solenoid valve arranged along the axis of the device. EFFECT: improved design. 1 dwg
Patent DE-10026625-C1 (DE)
Title: Triangulations-Sensor
Inventor: ADAMIETZ HUBERT
IPC: G01B11/02
Filed: 2000-05-29
Granted: 2002-02-07
Abstract: Bei einem Triangulations-Sensor (10) mit einem Lichtsender (12) und mit einem PD (17) enthaltenden, aus von einem Objekt (15, 15') reflektierten Licht ein Abstandssignal bildenden optischen Detektor wird vorgesehen, dass zwischen dem Lichtsender (12) und der PD (17) eine einen äußeren Lichtspot und wenigstens einen inneren Lichtspot mit höherer Intensität bildende Lichtstrahlenverteileinrichtung vorgesehen ist.
Patent DE-10042042-C1 (DE)
Title: Vorrichtung zur Reinigung einer Fahrbahn
Inventor: TOMASCHEWSKI KARL-HEINZ
IPC: E01H1/10
Filed: 2000-08-26
Granted: 2002-03-21
Abstract: Vorrichtung zur Reinigung einer Fahrbahn, insbesondere einer Start-/Landebahn eines Flughafens, die eine innerhalb eines Gehäuses (1) drehbar angeordnete und über eine Antriebswelle (6) drehangetriebene Verteilereinrichtung (13, 14, 18) zum Aufbringen eines Hochdruckfluids auf die zu reinigende Oberfläche enthält. Um mit einem einfachen und kompakten Aufbau eine verbesserte Reinigung zu ermöglichen, ist innerhalb des Gehäuses (1) ein über die Antriebswelle (6) der Verteilereinrichtung (13, 14, 18) angetriebenes Lüfterrad (21) zur Erzeugung eines Unterdrucks und einer Luftströmung im Gehäuse (1) für die Abführung des gelösten Schmutzes über einen Abfuhrkanal (33) angeordnet.
Patent DE-10052466-C1 (DE)
Title: Hand gun, e.g. self-loading pistol, has combination lock for preventing unauthorized firing of weapon
Inventor: FLUHR NORBERT
IPC: F41A17/04
Filed: 2000-10-23
Granted: 2002-04-04
Abstract: The hand gun has a handgrip (1) with a trigger (9) which is partially enclosed by a trigger guard (11) and which cooperates with a firing rod, a combination lock (17) preventing firing of the gun unless it is released.  The combination lock has at least 3 number discs cooperating directly or indirectly with the firing rod, which are rotated about a horizontal axis perpendicular to the longitudinal axis of the gun, the combination lock positioned in front of the trigger at the transition between the trigger guard and the gun housing, or the handgrip.
Patent DE-10061435-C1 (DE)
Title: Surgical oscillating saw has sawblade clamped between carrier surface of oscillating hollow shaft and clamp surface of axially displaced armature
Inventor: HAGEN THOMAS
IPC: B23D51/16
Filed: 2000-12-09
Granted: 2002-01-17
Abstract: The oscillating saw (1) has a sawblade (23) secured at one end in a clamp provided by an oscillating hollow shaft (14) with a carrier surface for the sawblade and a tensioning armature (18) displaced within the hollow shaft, having a clamp surface facing the carrier surface at one end and a rotatable tensioning screw (29) at the opposite end. The tensioning screw has an external cog engaging a drive device (33,34) provided by the saw for rotation of the tensioning screw.
Patent DE-10101427-C1 (DE)
Title: Parkettverlegesystem
Inventor: KROTTENTHALER JOHANN
IPC: E04F15/04
Filed: 2001-01-13
Granted: 2002-08-29
Abstract: Verlegesystem für Parkett, bestehend aus einer Vielzahl aneinander gefügter rechteckiger Bretter 2, 3, 5, wobei jedes Brett 2, 3, 5 eine Oberseite 2a, 3a, 5a, eine Unterseite 2b, 3b, 5b, zwei gegenüberliegende schmale Längsseiten 2c, 3c, 5c und 2d, 3d, 5d und zwei gegenüberliegende schmale Querseiten 2e, 3e, 5e und 2f, 3f, 5f hat, wobei die Längsseiten 2c, 5d zweier benachbarter Bretter 2, 5 über eine ineinander greifende, formschlüssige Längsholzverbindung 4, 4' verbunden sind, deren Fügeebene in einer Ebene parallel zur Ebene 6 der Oberseite 2a, 3a, 5a angeordnet ist, und die Querseiten 2e, 3f zweiter benachbarter Bretter 2, 3 über eine ineinander greifende, formschlüssige Querholzverbindung 1, 1' verbunden sind, deren Fügeebene in einer Ebene angeordnet ist, die unter einem Winkel alpha quer zur Ebene 6 der Oberseite 2a, 3a, 5a angeordnet ist, wobei der Winkel alpha zwischen 10 DEG und 80 DEG beträgt.
Patent DE-10153995-C1 (DE)
Inventor: BOLDT MATTHIAS
IPC: G06K17/00
Filed: 2001-11-02
Granted: 2003-06-26
Abstract: The present invention relates to a chipcard housing unit having a locking element which may be displaced parallel to the displacement plane of a chipcard. Individual locking elements are provided, mounted such as to be displaced between a cardholder and a control slide mounted thereon. Locking pins, provided on the locking element, engage in guides formed in the control slide. The ends of the locking elements are bent in a suitable manner, preferably hooked, and surround the front face of a chipcard located in the read/write position.