baber/WOPTO huggingface dataset:
Patent TW-202331838-A (TW)
Title: Method for forming deposition film
Inventor: SATO DAISUKE
IPC: H01L21/3065
Filed: 2022-10-25
Abstract: The present invention provides a method for forming a deposition film, the method being capable of forming a deposition film that has improved uniformity of the film thickness. This method for forming a deposition film is used for the purpose of forming a deposition film on a substrate (21), on which a pattern (22) has been formed, and comprises a deposition step in which the substrate (21) is placed on an electrode, and a deposition film (40) is formed on the substrate (21) using a plasma that is obtained by applying a bias power to the electrode so as to change a deposition gas into the plasma. The material that constitutes the pattern (22) is composed of at least one material that is selected from among a carbon-containing material, a silicon-containing material and a metal-containing material. In addition, the deposition gas contains an unsaturated halon. This unsaturated halon is an unsaturated compound which has a fluorine atom, a bromine atom, and two or three carbon atoms in each molecules. In addition, the power density of the bias power applied to the electrode is more than 0 W/cm2 but not more than 0.5 W/cm2.
Patent TW-202322801-A (TW)
Title: Microparticles containing leuprolide and method for producing the same
Inventor: KIM JU-HEE
IPC: A61K31/40
Filed: 2022-12-02
Abstract: The present invention provides microparticles containing leuprolide and a method for producing the same. When the microparticles are administered by injection, they may lower pain due to their small size, control the release rate of leuprolide at a target site, prevent excessive release of leuprolide at an initial stage, enable exposure to a sufficient amount of the drug to exhibit the effect of leuprolide, and exhibit the effect of leuprolide for 1 month or more. The present invention also provides a method for producing microparticles, in which the microparticles have a uniform particle size and a smooth surface and may exhibit the effect of releasing leuprolide sustainably over a long period of time.
Patent TW-202332063-A (TW)
Inventor: SHIN HONG-SIK
IPC: H01L29/78
Filed: 2023-01-16
Abstract: 可提供半導體裝置，所述半導體裝置包括：主動圖案，位於基板上且在第一方向上延伸；閘極結構，位於主動圖案上，包括在不同於第一方向的第二方向上延伸的閘電極；源極/汲極圖案，位於閘極結構的至少一側上；以及源極/汲極接觸件，位於源極/汲極圖案上且連接至源極/汲極圖案，其中相對於主動圖案的上表面而言，閘電極的上表面的高度相同於源極/汲極接觸件的上表面的高度，並且源極/汲極接觸件包括下部源極/汲極接觸件及位於下部源極/汲極接觸件上的上部源極/汲極接觸件。
Patent UA-38395-A (UA)
Title: Очний протез
Filed: 2000-06-29
Abstract: Винахід належить до медицини, зокрема, до офтальмохірургії і може бути використаний при протезуванні ока. Очний протез має імплантат, який складається із шарнірно поєднаних якоря і корони. Додатково протез містить рогівку, райдужну оболонку, знімний ектопротез грибовидної форми, з подовженими боковими частинами такої величини, що забезпечує прикриття імплантату при максимальних кутах повороту 36°. Корона з'єднується з якорем за допомогою нероз'ємного шарніра, нерухома частина якого виконана у вигляді кулі з циліндричною основою, прикріпленою на якорі. На якорі імплантату по його контуру зроблено отвори, а на боковій поверхні - виконано 4 коритоподібних канали. Корона має 4 штифти для надійної фіксації ектопротезу, та канали для розміщення м'язів.
Patent UA-47706-A (UA)
Title: An electrolyte for anodizing aliuminum alloys
Inventor: YAVORSKYI VIKTOR TEOFILOVYCH
Filed: 2001-07-31
Abstract: An electrolyte for anodizing aluminum alloys, containing sulphate and oxalate acids and formoguanamin as an amino-derivative.
Patent UA-51179-A (UA)
Inventor: BOHDAN KIM STEPANOVYCH
Filed: 2002-01-28
Abstract: 敍桴摯映牯挠湥牴晩杵污挠獡楴杮漠⁦睴ⵯ慬敹⁲湩潧獴戠⁹敳畱湥楴污瀠畯楲杮琠⁯桴⁥潭摬戠潲杵瑨椠瑮⁯潲慴祲洠瑯潩⁮景瀠敲捳楲敢⁤潤敺⁳景搠晩敦敲瑮椠⁮档浥捩污挠浯潰楳楴湯洠汥獴‬楷桴渠敥敤⁤湩整癲污‬瑡挠湯楴畮畯⁳潣瑮潲汬湩⁧慶祲湩⁧慭獳愠摮琠浥数慲畴敲漠⁦桴⁥湩潧⹴䄠瑦牥瀠畯楲杮映物瑳洠汥⁴敤汦捥楴湯漠⁦桴⁥捡畴污搠獯⁥牦浯琠敨挠污畣慬整⁤湯⁥獩搠瑥牥業敮⁤湡⁤瑳牯摥※潣牲捥楴湯漠⁦桴⁥牰獥牣扩摥搠穯⁥景琠敨猠捥湯⁤污潬⁹獩洠摡ⱥ愠捣牯楤杮琠⁯桴⁥慶畬⁥湡⁤楳湧漠⁦桴瑡搠晥敬瑣潩㭮愠瑦牥琠慨⁴潰牵湩⁧景琠敨猠捥湯⁤污潬⁹獩瀠牥潦浲摥‬瑡漠瑰浩污映牯琠敨朠癩湥瀠楡⁲景愠汬祯⁳整灭牥瑡牵⁥景琠敨漠瑵牥氠祡牥‬楷桴愠捣畯瑮漠⁦瑩⁳捡畴污洠獡ⱳ愠摮猠杩慮⁬獩朠癩湥映牯挠瑵楴杮琠敨映潬⁷景琠敨猠捥湯⁤污潬⁹瑡愠档敩楶杮琠敨愠橤獵整⁤牰獥牣扩摥搠穯⹥䄠瑦牥琠慨⁴敤汦捥楴湯漠⁦桴⁥捡畴污搠穯⁥景琠敨猠捥湯⁤敭瑬映潲⁭桴⁥牰獥牣扩摥瘠污敵椠⁳瑳牯摥※湡⁤湩攠捡⁨景映汯潬楷杮挠捹敬⁳牰摯捵楴湯漠⁦湩潧獴椠⁳潣牲捥整⁤潦⁲牰獥牣扩摥搠穯獥漠⁦潢桴愠汬祯⁳潣牲獥潰摮湩⁧潴琠敨瀠潲慢汢⁥慶畬獥漠⁦敤汦捥楴湯漠⁦桴獯⁥牦浯琠敨挠污畣慬整⁤湯獥‬潦湵⁤湯琠敨戠獡獥漠⁦桴⁥潴慴⁬敲畳瑬⁳景搠穯湩⁧湩瀠敲楶畯⁳祣汣獥മ
Patent UA-55749-A (UA)
Title: Damper spark suppressor
Inventor: TALALAIEV SEMEN MYKOLAIOVYCH
Filed: 2002-06-04
Abstract: Damper – spark suppressor has housing with installed in it in coaxial positions chambers of rotation and separation, with connected to the rotation chamber in tangent direction inlet branch pipe with ejector, its passive part is placed between the walls of the rotation chamber and the housing; discharge branch pipe, this is connected to the separation chamber. At that, between the chambers of rotation and separation there is installed a confuser, and the wall of the separation chamber is equipped with installed in it in uniform way, in perimeter, openings with tangent branch pipes. A screw, which includes a rod and screw wall, is installed in the inner cavity of the separation chamber coaxially to it.
Patent UA-57282-A (UA)
Title: Method for recording data and reconstructing images in nmr tomography
Inventor: NOVOSELETS MYHAILO KYRYLOVYCH
Filed: 2002-07-05
Abstract: The method for recording the data and reconstructing the images in NMR tomography consists in superimposing the constant and gradient components of the magnetic field and the high-frequency pulses of spin excitation within the space of the object under study to provide for the spatially localized nuclear magnetic resonance resulting in the fluctuation of the spin systems recorded as the drop of the free induction signal. The method provides for employing the variable frequency of the excitation pulses acting simultaneously with the transverse gradient system of the magnetic resonance tomograph. The drop of the free induction signal within the excited band being recorded depends on the excitation frequency for each orientation of the transverse gradient. The average spin density of the excited band is recorded taking into account the increment of the signal registered in different time interval for the various orientation of the transverse gradient of magnetic field. The patterns of the average spin density recorded are used for reconstruction of the spin density of each spatial point using the convolution technique.
Patent UA-57383-A (UA)
Title: Method for making flexible heat-insulation material
Filed: 2002-09-10
Abstract: Method for making flexible heat-insulation material with strips of roofing material comprises making strips of a band, for instance, of paper, synthetic, textile and other materials, this is cut into strips having needed width; and to one side of the strip glue layer is applied, with uniform adhesiveness, with formation of rolls.
Patent DO-P2001000120-A (DO)
Title: Compuestos, composiciones farmaceuticas de indazol y metodos para mediar e inhibir la proliferación celular
Inventor: REICH SIEGFRIED HEINZ
IPC: B22D41/56
Filed: 2001-01-17
Abstract: Se describen los compuestos de Indazol que modulan y/o inhiben la actividad de las proteínas cinasas. Estas composiciones y los compuestos farmacéuticos que los Contienen, son capaces de mediar enfermedades dependientes de cinasas para modular y/o inhibir la proliferación de células indeseables. La invención también se dirige al uso Terapéutico o profiláctico de Las composiciones farmacéuticas que contienen estos compuestos y a Los métodos de tratamiento de cáncer así como también a otras Enfermedades asociadas con la angiogénesis y/o a la proliferación celu1ar indeseable, tal como la retinopatía diabética, el glaucoma neovascu1ar, la artritis reumatoides y la soriasis, con la administración eficaz de estos compuestos.
Patent DO-P2010000232-A (DO)
Title: Derivados de indazol
Inventor: HOCKERMAN SUSAN LANDIS
IPC: C07D413/14
Filed: 2010-07-29
Abstract: La presente invención se refiere a compuestos, composiciones farmacéuticas y procedimientos para eI tratamiento de una afección mediada por la actividad del receptor CB1 en un sujeto mamífero, incluyendo un ser humano, que comprende administrar a un mamífero que necesita dicho tratamiento una cantidad terapéuticamente eficaz del compuesto de fórmula (l): en la que R1, R2 y R3 son como se definen en la presente memoria descriptiva.
Patent DO-P2014000047-A (DO)
Title: 2-(Croman-6-iloxi)-tiazoles sustituidos y su uso como farmacéuticos
Inventor: GOEGELEIN HEINZ
IPC: A61K31/427
Filed: 2014-03-04
Abstract: La presente invención se refiere a 2-(croman-6-iloxi)-tiazoles 5 sustituidos de la fórmula I, en la que Ar, R2, R3 y R4 son como se define en las reivindicaciones. Los compuestos de fórmula son inhibidores del intercambiador de sodio y calcio (NCX), especialmente del intercambiador de sodio y calcio del subtipo 1 (NCX1), y son adecuados para el tratamiento de diversos trastornos tales como arritmias, insuficiencia cardiaca e ictus, en los que la homeostasis del calcio intracelular está alterada. La invención se refiere además a procedimientos para la preparación de los compuestos de la fórmula I, a su uso como compuestos farmacéuticos y a composiciones farmacéuticas que los comprenden.
Patent EC-SP13012498-A (EC)
Title: Motivo de identificación bidimensional, artículo que comprende tal motivo y procedimientos de marcado y de identificación de tal motivo
Inventor: DECOUX ERIC
IPC: G06K19/06
Filed: 2013-03-18
Abstract: Procedimiento de marcado de un artículo con un motivo de identificación que puede comprender una información relativa al artículo y/o su utilización, que comprende las etapas siguientes: - se define un alfabeto (AT1, AT2) constituido de varios símbolos, - se define, para cada símbolo, al menos dos estados válidos y al menos un estado inválido, - se elabora (S1) un motivo de referencia o "patrón" (P1, P2) que comprende un conjunto de símbolos del alfabeto antes citado, - se elabora (S2) al menos una representación (P1', P2') de dicho motivo de referencia o "patrón" asignando a cada símbolo de dicho motivo de referencia o "patrón" un estado válido específico, se aplica (S3) sobre el artículo un marcado que reproduce dicha representación del motivo de referencia o "patrón"
Patent EC-SP14013261-A (EC)
Title: Sistema y método de craqueo en frío con vapor
Inventor: NUERK RUEDIGER UWE
IPC: C10G99/00
Filed: 2014-03-21
Abstract: Método para potenciar la recuperación de petróleo de un yacimiento petrolífero, que comprende: aplicar calor a un medio hidrocarbónico coloidal que comprende cadenas de hidrocarburo; y aplicar ondas de presión con una frecuencia y una intensidad predeterminadas a las cadenas de hidrocarburo, para fraccionar las cadenas de hidrocarburo en cadenas de hidrocarburo relativamente más cortas. Opcionalmente: la aplicación de calor puede comprender aplicar vapor; las ondas de presión se pueden aplicar directa o indirectamente a las cadenas de hidrocarburo que se van a fraccionar; la aplicación de las ondas de presión se puede realizar dentro del yacimiento petrolífero mediante el uso de un activador dentro o fuera del yacimiento petrolífero; la aplicación de las ondas de presión se puede realizar dentro del yacimiento petrolífero; la aplicación de las ondas de presión se puede realizar mediante el uso de un rotor situado en un alojamiento impregnado por el medio hidrocarbónico coloidal.
Patent EE-200000376-A (EE)
Inventor: SCHUCKMANN ALFRED VON
IPC: A61M15/00
Filed: 1998-12-22
Abstract: A blister pack assembly for an inhaler for administering powder containing medicament by inhalation, comprising: a suction tube (7) through which powder is in use drawn on inhalation by a user; and a blister pack unit (5) comprising a blister pack element (11) which includes a plurality of blisters (12), each containing a dose of powder containing medicament, and an attachment member (13) disposed to one side of the blister pack element (11) to which the suction (7) is attachable when not in use.
Patent GB-189701259-A (GB)
Title: Improvements in Incubators.
Inventor: PHILLIPSON BURTON RICHARD
Filed: 1897-01-18
Granted: 1898-01-18
Abstract: 1259. Phillipson, B. R. Jan. 18. Drawings to Specification. Incubators.-Relates to detail improvements on incubators having the egg chamber heated by means of a hot-water tank. The body of the incubator is made of wood and is lined with sheet lead or other metal, so that the bottom forms a water tray which is provided with an overflow pipe and is filled through a pipe leading from a funnel arranged on the outside of the incubator. The egg drawer is mounted on runners so arranged as to project outside the incubator and support the drawer when open. The water tank is made in the form of a drawer, so that it can be inserted through an opening in the side of the incubator.
Patent GB-189702479-A (GB)
Title: An Improvement in Bicycles.
Inventor: ROUGEMONT ALEXANDER DE
Filed: 1897-01-30
Granted: 1898-01-29
Abstract: 2479. Rougemont, A. de, [Smith, T. L.]. Jan. 30. Brakes; safety wheels and supports.-Relates to a combined ground brake and support for bicycles. A forked lever B, E, F, terminating in a handle A, is pivoted on, or near, the wheel axle, as shown. The handle A is fitted with a spring catch for engaging a rack C, D and fixing the lever in any position. When the handle A is raised, the ends B are brought into contact with the ground, thus acting as a brake and also as a support for the bicycle. Castors, wheels, or shoes may be fitted to the ends B of the lever. In a modification, shown as applied to a lady's bicycle, two levers are pivoted on the pedal-crank axle ; the lower ends of these levers are brought into contact with the ground by means of a foot stirrup acting on the upper ends, which are cam-shaped to facilitate the action.
Patent GB-189703610-A (GB)
Title: Improvements in Lubricators.
Inventor: JONES WALTER JOHN HUBERT
Filed: 1897-02-10
Granted: 1898-02-05
Abstract: 3610. Jones, W. J. H. Feb. 10. Lubricators.-Oil is stored in the cup 1 which communicates with the chamber 2 by the capillary aperture 3. The chamber 2 is mounted on a pivoted stem 6 oscillated by convenient means, so that the ball 4 rolls in the chamber 2 when the machine to be lubricated is in motion. The movements of the ball cause variations of pressure i n the chamber 2, so that oil is sucked through the aperture 3 and is delivered through a pipe or pipes 5 to the part to be lubricated. When used for lubricating the motor described in Specification No. 29,610, A.D. 1896, the apparatus is mounted on the oscillating motor cylinder; it may be similarly applied to other rotating bodies. The chamber 2, instead of being straight, may be curved to an arc of a circle having its centre at the axis about which the stem 6 oscillates. In another modification, the chamber 2 is fixed and a plunger or piston is reciprocated within it.
Patent GB-189705282-A (GB)
Title: Improvements in Washing Machines.
Inventor: HARVEY HENRY JAMES
Filed: 1897-02-27
Granted: 1898-02-26
Abstract: 5282. Harvey, H. J. Feb. 27. Washing-machines. -Fig. 1 shows a side view, partly in section. The washtub is provided with uprights B having grooves in which slide the ends. of the cross - bar D, which supports .the plunger H by the bent rod F, and is driven from the crank A, A by the hangers c. A staple J passes through holes in the cross-piece above the machine, and may be used for retaining the crank A, A in its highest position.
Patent GB-189707698-A (GB)
Title: A New or Improved Table Game.
Inventor: ROBERTS HARRY OWEN
Filed: 1897-03-25
Granted: 1897-05-22
Abstract: 7698. Roberts, H. O., and Roberts, J. O. March 25. Games played with basins, plates, discs, and sticks.-A bowl is placed in the centre of the table, and represents a porridge basin. Around it are placed a number of square or round discs or other articles representing sugar. Each player has in front of him a small plate, and a stick, having a padded end after the manner of a drum stick and representing a spoon, is also supplied. One player pretends to stir the porridge with the spoon and gives another player an imaginary spoonful by touching his plate with the spoon. He then puts the spoon back into the bowl, picks up a piece of 'sugar' and places it on his own plate, while the player who has received the porridge catches hold of the spoon and endeavours to touch the former player's hand with it before he has placed the sugar on his plate. According to whether he does this or not, he or his opponent receives that piece of sugar. When all the sugar is gone from the centre, the game ends, and the player who has the most piece3 wins the game.
Patent GB-189712579-A (GB)
Title: Improvements in and relating to Mantle Stands for Articles of Dress for Personal Wear.
Inventor: WILLIAMSON JOHN
Filed: 1897-05-21
Granted: 1897-07-10
Abstract: 12,579. Williamson, J. May 21. Lay-figure stands. -A sheet - metal collar a is placed over dress - stand busts to support wire or other metallic strips or pieces b on which padding paper rolls care mounted.
Patent GB-189714688-A (GB)
Title: Improvements in or relating to the Ornamentation of Bread Platters and the like.
Inventor: EVINSON SAMUEL THOMAS
Filed: 1897-06-17
Granted: 1898-04-30
Abstract: 14,688. Evinson, S. T. June 17. Drawings to Specification. Plates.-A bread platter or the like is formed of a plain wooden &c. platter, ornamented by removable ornaments or designs, attached in suitable places by screws &c., the ornaments being removed to allow the platter to be cleaned. The ornaments may serve to prevent the slipping about of the bread.
Patent GB-189715695-A (GB)
Title: Improvements in Weft Pile Cutting Machines.
Inventor: DAYMONT JOHN BENTLEY
Filed: 1897-07-01
Granted: 1898-06-04
Abstract: 15,695. Daymont, J. B. July 1. Pile-cutting.-The fabric b is fed through a slit in a tension bar R, and when passed over the inclined table shown is secured by a bar at the righthand side of the table, a ratchet device T on the bar R serving to hold it in tension. The knife-holder, which is mounted on a traversing-table, consists of an arm P', having a depending arm a', which carries within a hub at its base an arm f on which the knife sheath s is mounted. The knife is guided by a shoe p and plate o', and the arm f normally rests against a stud m. When, however, the knife accidentally penetrates the fabric, the arm f escapes from the stud m, and the knife is thrown, by means of the spring n', into the position shown in dotted lines in Fig. 4. The table is traversed by means of a band J passing over a reciprocating pulley K which, by means of a cam device, is caused to reciprocate to slightly varying extents, so that the knife will commence to operate in a varying line, thus preventing streaks in the fabric. Moreover, the pulley is so operated that it will move slowly towards the end of its movement in either direction, which arrangement prevents vibration of the knife. The knife is automatically moved across the fabric by means of a screw N, which has a pinion P adapted to engage with a spring rack h'. On the forward movement, the rack is held down by a pivoted pawl g out of engagement with the pinion, so that the cross movement of the knife is effected only on the backward movement of the table.
Patent GB-189716210-A (GB)
Title: Improvements in Shifting Spanners.
Inventor: MITCHELL FRANK
Filed: 1897-07-08
Granted: 1898-07-02
Abstract: 16,210. Mitchell, F. July 8. Spanners.-The jaws A<1>, B<1> are carried by the stems A, B, formed with teeth F, G which interlock when the stems are laid flat upon one another. The teeth are arranged on an arc struck from the pivot C connecting the stems. A setscrew H, screwing into one stem and passing through a slot I in the other, keeps the stems together. The teeth may be cut along the edges L, M and the pivot C may be dispensed with, the stems being simply held together by the hand.
Patent GB-189717313-A (GB)
Title: Improvements in Process of and Apparatus for Distilling Ammonia.
Inventor: KREBS HENRIK JOHANNES
Filed: 1897-07-22
Granted: 1897-11-13
Abstract: 17,313. Krebs, H. J. July 22. Distilling ammonia.-The ammoniacal liquid enters the apparatus through the pipe 32, Fig. 2, and, serving to cool the vapours passing upwards through the tubes 25 of the rectifier 3, flows through the pipes 33, 34, 19 into the analyser 4 which it enters in a heated condition. During its passage downwards the ammonia is distilled off by steam admitted through the pipe 12 from a boiler to which the waste liquid collecting in the chamber 11 is automatically fed through the pipe 13. Each section of the rectifier 3 is divided, as shown, into two parts, one 24 serving as a cooling-chamber and the other 23 for the collection of condensed vapours, which flow away through pipes 26. In the upper part of the rectifier the cooling is effected by water entering through the pipe 29. The ammonia passing away through the pipe 35 is condensed, and the liquid obtained is purified by further distillation at a temperature of about 100‹ F., in a still 40, Fig. 4, surmounted by a rectifying- column 44. The ammonia passes away through the pipe 62 to a condenser. The impure liquid which accumulates in the still 40 is run into a still 51, and distilled at a higher temperature by hot water so as to remove ammonia.
Patent GB-189721778-A (GB)
Title: Improvements in Tyres for Carriages and other Vehicles.
Inventor: PICKLES JAMES
Filed: 1897-09-23
Granted: 1898-07-23
Abstract: 21,778. Pickles, J. Sept. 23. Tyres, elastic other than pneumatic ; felloes or rims.- The ordinary felloe or rim A receives a channelled metal rim B, round the circumference of which is placed a layer of cork or similar blocks D. This layer is secured in position by a vulcanized rubber cover E, the edges of which are held by the inwardly-inclined flanges C of the rim B.
Patent GB-189723228-A (GB)
Title: Improvements in Gas Cooking Stoves.
Inventor: COOKE JETHRO JAMES
Filed: 1897-10-09
Granted: 1898-09-03
Abstract: 23,228. Cooke, J. J., and Cooley, G. Oct. 9. Gas cooking and grilling stoves.- The burners F for the oven are removable by turning aside the hinged tube F<2> on which the nipples are mounted. The walls A of the stove carry distance-pieces A', against which fit side-plates D<1>, D<2>, &c. These are kept in place by the bottom frame E and corner angle-irons E<2>, the latter being secured by sliding the top plate D into place and bolting it at D*. The hot gases pass from the oven into the space above and around it. The burners H are adapted for either boiling or grilling. For the latter purpose they can be turned axially together by suitable levers so as to direct the flames beneath the firebrick plates C, which radiate the heat downwards on to the meat beneath. The edges of the plates are grooved and serrated as shown. The ring burners K, L are locked by lugs K<3> , K<2>, L<2>, so that a single screw holding the burner L to the supporting-bar G fixes them in place. The griller C is held in grooves in bars G<1>, G<2> supported respectively by the frame B' and the bar G. In the Provisional Specification the burners H are described as having a longitudinal movement, so that the flames either 'hit' or 'miss' the serrated edges of the griller C.
Patent GB-189728195-A (GB)
Title: Improvements in Self-locking Seals.
Inventor: TYDEN EMIL
Filed: 1897-11-30
Granted: 1898-01-15
Abstract: 28,195. Tyden, E. Nov. 30. Seals and sealing.-Fig. 3 shows the partlyclosed seal with the front plate removed. The seal consists of a flat box A having a narrow neck A<4> which is entirely filled by three thicknesses of the metal strip C. The strip C is provided with a slot A at the bend C<1> to pass over the spring D. When the end of the strip C is pushed home, the ends of the spring D pass through the three corresponding openings C<2> and prevent the strip from being withdrawn.