baber/WOPTO huggingface dataset:
Patent TW-202238424-A (TW)
Title: A provisioning control apparatus and method for provisioning electronic components for electronic devices
Inventor: WOODRUFF TIM
IPC: G06F12/14
Filed: 2022-03-11
Abstract: The invention relates to a provisioning control apparatus coupled to a provisioning equipment server electrically connectable with one or more electronic components for provisioning the one or more electronic components with provisioning data, each electronic component including a security enclave and a non-volatile memory. The provisioning control apparatus encrypts the provisioning data using a secure vault encryption key for obtaining encrypted provisioning data. The provisioning control apparatus includes a communication interface securely providing the secure vault encryption key to the provisioning equipment server for storing the secure vault encryption key in the security enclave. The communication interface provides the encrypted provisioning data to the provisioning equipment server for storing the encrypted provisioning data in the non-volatile memory and creating a secure vault in the non-volatile memory for securely storing the encrypted provisioning data.
Patent TW-202245884-A (TW)
Title: Shaft, method for manufacturing same, and shaft for golf club
Inventor: MATSUBARA Kae
IPC: B29L31/52
Filed: 2022-03-31
Abstract: A shaft (10) including a plurality of layers A (11) and at least one layer B (12), wherein the layers A (11) contain a cured thermosetting resin, the layer B (12) contains a thermoplastic resin and continuous fiber base substrate, and the at least one layer B (12) is disposed between two of the layers A (11).
Patent TW-202313114-A (TW)
Title: gel composition
Inventor: IMORI YOICHIRO
IPC: A61K47/02
Filed: 2022-04-18
Abstract: The present invention pertains to: [1] a gel composition that contains (A) an anionic polyvinyl alcohol, (B) a trivalent metal salt, and (C) water, and that has a pH of 3.0-5.0 at 25 DEG C; [2] a dermal topical agent containing said gel composition; and [3] a method for forming a gel composition having a pH of 3.0-5.0 at 25 DEG C, the method comprising a step for gelling, through mixing before use, (A) an anionic polyvinyl alcohol, (B) a trivalent metal salt, and (C) water.
Patent TW-202245403-A (TW)
Title: Three-phase dc motor driving circuit, cooling device and electronic machine using thereof
Inventor: SHIMIZU HIROYUKI
IPC: H02K11/30
Filed: 2022-04-27
Abstract: The present disclosure provides a motor driving circuit of capable of stopping operation within a short period of time. A bridge circuit of the present disclosure is connected to a fan motor. In response to a stop instruction, a control logic circuit fixes an upper arm of a source phase in which a current flows out to be off in the bridge circuit, and maintains statuses of other upper arms and lower arms. The control logic circuit then fixes the upper arms and the lower arms of all phases of the bridge circuit to be off.
Patent TW-202303774-A (TW)
Inventor: OLSON SIMON
IPC: H01L21/46
Filed: 2022-05-02
Abstract: 本公開一種形成多個電晶體的半導體結構。所述半導體結構包括：源極層（110）；從所述源極層（110）豎立的多個垂直奈米線（140）；第一間隔層，所述第一間隔層佈置在源極層（110）上並圍繞所述多個垂直奈米線（140）中的每一個；閘極層（120），所述閘極層設置在第一間隔層上，並圍繞所述多個垂直奈米線（140）中的每一個；第二間隔層，所述第二間隔層設置在所述閘極層（120）上並圍繞所述多個垂直奈米線（140）中的每一個；汲極層（130），所述汲極層設置在第二間隔層上，並與所述多個垂直奈米線（140）中的每個垂直奈米線（140）接觸；其中所述閘極層（120）包括第一閘極（121）和第二閘極（125），每個所述第一閘極和所述第二閘極包括多個閘極指（122、126），其中，所述第一閘極（121）包括第一互連閘極部分（123），所述第一互連閘極部分與所述第一閘極（121）的閘極指（122）互連，其中，所述第二閘極（125）包括第二互連閘極部分（127），所述第二互連閘極部分與所述第二閘極（125）的閘極指（126）互連，其中，所述第一閘極（121）的多個閘極指（122）與所述第二閘極（122）的多個閘極指（126）交錯，其中，所述第一閘極（121）是第一電晶體（101）的閘極，並且所述第二閘極（125）是第二電晶體（105）的閘極。
Patent TW-202307072-A (TW)
Title: Resin and method for preparing the same
Inventor: JUNG MIN-SUK
IPC: C07D307/91
Filed: 2022-05-16
Abstract: The present application relates to a resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition.
Patent TW-202331373-A (TW)
Title: 具有發射修改的背光單元
Inventor: GARBAR ARKADY
IPC: G02F1/1335
Filed: 2022-05-20
Abstract: 揭示一種顯示系統和方法，該顯示系統包括電子顯示裝置和背光，該背光包括發光陣列、與該發光陣列相鄰的反射器、與該反射器相對的漫射器、與該漫射器相鄰的第一增亮層和包括至少一種光轉換材料或至少一種光轉換材料的光學膜。該光轉換或光吸收材料被構造和配置為減少在約400nm至約500nm之間的有害藍光發射。所揭示的顯示裝置可包括液晶面板，該液晶面板被配置為控制從該背光到觀看者的光透射。該顯示裝置還包括一或多個光學膜，該一或多個光學膜結合有一或多個光轉換或光吸收材料。該光學膜可定位在所揭示的顯示裝置的層之間並且向該顯示裝置提供增強的藍光吸收。
Patent TW-202313630-A (TW)
Inventor: LI XIN
IPC: C07D498/14
Filed: 2022-05-24
Abstract: 本揭露關於含氮雜環類化合物、其製備方法及其在醫藥上的應用。具體而言，本揭露關於一種通式(IM)所示的含氮雜環類化合物、其製備方法及含有該類化合物的醫藥組成物以及其作為治療劑的用途，特別是作為PARP1抑制劑的用途和在製備用於治療和/或預防癌症的藥物中的用途。
Patent TW-202248000-A (TW)
Title: photosensitive glass
Inventor: KATO TAKEYUKI
IPC: B32B3/10
Filed: 2022-05-30
Abstract: The present invention relates to photosensitive glass in which Li2SiO3 crystals precipitate as a result of light exposure and heat treatment, wherein the value of expression (A): [Li2O]/([Li2O]+[Na2O]+[K2O]) is 0.50 to 0.75, and the dielectric loss tangent at 20 DEG C and 10 GHz is 0.0090 or less.
Patent TW-202237113-A (TW)
Inventor: NAITO HIROYUKI
IPC: A61K31/436
Filed: 2015-01-30
Abstract: As an antitumor drug which is excellent in terms of antitumor effect and safety and has an excellent therapeutic effect, there is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-HER2 antibody via a linker having a structure represented by the following formula: -L1-L2-LP-NH-(CH2)n1-La-(CH2)n2-C(=O)- wherein the anti-HER2 antibody is connected to the terminal L1, and the antitumor compound is connected to the carbonyl group of the -(CH2)n2-C(=O)-moiety with the nitrogen atom of the amino group at position 1 as the connecting position.
Patent TW-202320113-A (TW)
Title: System and apparatus for stabilizing electron sources in charged particle systems
Inventor: LA FONTAINE BRUNO
IPC: H01J37/26
Filed: 2022-07-06
Abstract: Apparatuses and systems for stabilizing electron sources in charged particle beam inspection systems are provided. In some embodiments, a system may include an electron source comprising an emitting tip electrically connected to two electrodes and configured to emit an electron; and a base coupled to the emitting tip, wherein the base is configured to stabilize the emitting tip via the coupling.
Patent TW-202330938-A (TW)
Title: Substance and method for evaluating tumor
Inventor: LIU RUI
IPC: C12Q1/6886
Filed: 2022-07-27
Abstract: The present disclosure pertains to substance and method for evaluating tumor. Specifically, the present disclosure provides substances, kits, devices, systems and methods for assessing tumorigenesis risk and/or tumor progression in a subject. For example, the present disclosure provides methods of assessing tumorigenesis risk and/or tumor progression in a subject based on the methylation status of selected target polynucleotide sequence from the subject.
Patent TW-202312004-A (TW)
Inventor: HAUZI HAIM
IPC: G06F117/00
Filed: 2022-08-23
Abstract: 揭示一種晶片設計方法及從一共同設計資料庫設計定案的一組積體電路。界定該積體電路的一完整實例的區域，並界定一或多條截線以識別將針對一或多個部分實例所移除的部分。定義各種技術及機制，以允許該等設計定案從一共同設計資料庫發生，使得可將設計定案部分實例之工作量最小化超出設計定案該完整實例之工作量。
Patent TW-202310550-A (TW)
Inventor: Fu dian-bo
IPC: H02M3/335
Filed: 2022-08-23
Abstract: 本發明揭露LLC諧振轉換器、電源電路及其提供電源電壓的方法。LLC諧振轉換器包括變壓器、開關半橋電路、諧振電路及全橋整流器。開關半橋電路及全橋整流器皆位於變壓器的同一側。開關半橋電路有兩個開關，一個連接至LLC諧振轉換器的輸出電壓節點。諧振電路包括諧振電容、諧振電感及變壓器的第一次級線圈的激磁電感。開關半橋電路通過諧振電路連接至變壓器的第一次級線圈。全橋整流器連接至變壓器的第二次級線圈。本發明揭露一種LLC諧振變換器的新的拓撲，相較於傳統的拓樸，可將變壓器T1設置在印刷電路板（PCB）上而減少PCB的層數，還可降低功率損失。
Patent TW-202303486-A (TW)
Title: Redemption system and redemption method recording coordinate position of mobile device
Inventor: HUANG PEI-TING
IPC: G06Q30/00
Filed: 2020-05-06
Abstract: A redemption system includes a mobile device and a bank server. The mobile device is configured to output a redemption command after receiving a prize notice and a coordinate position of the mobile device. The bank server is configured to determine whether the mobile device is a certified device according to a result of a safety control procedure after receiving the redemption command and the coordinate position, and the bank server outputs an identity verification information to a redemption institute server when the bank server determines the mobile device is the certified device. The redemption institute server verifies the identity verification information and transfers a prize money to a bank account relating to the identity verification information when the identity verification information is verified. The bank server outputs a redemption complete notice when determining the bank account has received the prize money. The safety control procedure is: the bank server outputs a verification message to the mobile device, the mobile device decodes the verification message to generate a verification code and outputs the verification code to the bank server when the mobile device determines that the verification message corresponds to the redemption command, and the bank server determines that the mobile device is the certified device when determining that the verification code corresponds to the verification message.
Patent TW-202316895-A (TW)
Inventor: CHANG CHENG-YI
IPC: H04W74/00
Filed: 2022-10-13
Abstract: 一種由無線保真（Wi-Fi）多鏈路設備（MLD）採用的控制方法包括：響應於通過通道競爭在第一時間點獲得第一鏈路的存取權，在該第一鏈路上啟用多鏈路相干操作模式，以利用N個空間流在該第一鏈路上執行幀交換程序，其中，N為不小於2的正整數；以及，響應於通過通道競爭在第二時間點獲得第二鏈路的存取權，阻止該多鏈路相干操作模式在第二鏈路上啟用，其中，第二鏈路的性能低於第一鏈路的性能。本發明能夠提高系統性能。
Patent TW-202328311-A (TW)
Title: Tow prepreg and method of producing the same
Inventor: ETO KAZUYA
IPC: C08J5/24
Filed: 2022-12-02
Abstract: A tow prepreg in which a reinforcing fiber bundle is impregnated with a matrix resin that is the reaction product of a resin composition containing a bifunctional epoxy resin (A), a bifunctional compound (B) having reactivity with an epoxy group, and a curing catalyst (C) selected from the group consisting of amine curing catalysts, phosphorus curing catalysts, and imidazole curing catalysts, wherein: the matrix resin has a weight-average molecular weight of 300-2,000 and a glass transition point of 15-35 DEG C; the tow prepreg has an unraveling tension of not more than 8.0 N at an atmospheric temperature of 20-50 DEG C; and pulling shear separation load for two tow prepregs under prescribed conditions is 1.0-24.5 N/mm.
Patent TW-202333524-A (TW)
Inventor: PARK CHANG-HWAN
IPC: H04W72/04
Filed: 2022-12-06
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a UE-specific configured grant (CG) small data transmission (SDT) configuration with parameters specific to CG-SDT in a non-terrestrial network (NTN). The UE may receive system information associated with validation of the parameters for CG-SDT on the NTN. The UE may transmit an SDT to a network entity of the NTN using one or more of the parameters. Numerous other aspects are described.
Patent TW-202314991-A (TW)
Title: Precision reconstruction for panel-level packaging
Inventor: SEN AMLAN
IPC: H01L23/31
Filed: 2021-10-04
Abstract: Panel level packaging (PLP) with high positional accuracy of dies. The PLP bonds dies accurately to die bonding regions of an alignment panel. High accuracy is achieved by providing die bonding regions with local alignment marks. Accurate die bonding on the alignment carrier results in a reconstructed wafer with accurate positioning of dies. The dies of the reconstructed wafer can be scanned by a die location check (DLC) scan based on sub-blocks of dies, enabling high DLC throughput. The DLC scan generates a DLC file with coordinate points of sub-blocks of the reconstructed wafer. Also, a laser direct imaging (LDI) file can be generated using sub-block circuit files aligned to the DLC file. The use of sub-block circuit files facilitates high throughput in generating the LDI file with high accuracy due to the reconstructed wafer being formed using the alignment carrier with local alignment marks.
Patent TW-202336956-A (TW)
Title: Substrate processing device, substrate processing method, and manufacturing method for semiconductor device
Inventor: NAITO Tsunahiko
IPC: H01L23/467
Filed: 2023-02-24
Abstract: A substrate processing device 10 comprising: a vacuum processing chamber 16; a substrate holder 50 that holds a substrate S within the vacuum processing chamber 16; sealing that forms a closed space 82 between the substrate holder 50 and the substrate S held by the substrate holder 50; a gas path 84 that communicates with the space 82; a gas supply path 86 that supplies a gas into the gas path 84; a gas discharge path 88 that discharges the gas from within the gas path 84; a first valve 90 that can open and close between the gas path 84 and the gas supply path 86; and a second valve 92 that can open and close between the gas path 84 and the gas discharge path 88.
Patent UA-41084-A (UA)
Title: Method for loading wet holes with explosive
Inventor: PIVEN' VOLODYMYR OLEKSANDROVYCH
Filed: 2001-02-01
Abstract: A method for wet holes charging with explosive (E) includes lowering-in to the bottom of the hole with water an elastic waterproof shell, installation of initiatior, formation of E charge and stemming. The bottom end of the elastic water-proof shell is leaved open, at that preliminary, starting from the bottom end, a site of a firm shell is created by means of a pipe, on which mentioned end of the elastic water-proof shell is dressed with the subsequent hermetic fixing. Lowering-in the elastic waterproof shell to the wet hole is carried out under action of weight of the pipe up to immersing its face surface in a pulp of the hole bottom. The water closed in the elastic shell is used as component of E and stemming which if formed simultaneously with formation of E charge.
Patent UA-47264-A (UA)
Filed: 2001-09-28
Abstract: The method for preclinical treatment of the acute myocardial infarction comprises taking aspirin (325 mg sublingually) within the first minutes of the treatment, employing beta-adrenoblocking agent in case of the absence of the counterindications, initiating the thrombolitic therapy, and employing perftoran at a dose of 5 ml per 1 kg of body mass for 3 hours.
Patent UA-50450-A (UA)
Title: Method for etching solutions depuration of titanium
Inventor: YERMAKOV ANATOLII OLEKSANDROVYCH
Filed: 2002-01-14
Abstract: Method for depuration of etching solutions of titanium comprises of adding to solution potassium salt, with the following separation of potassium hexa-fluoro-titanate. At that, as potassium salt potassium bifluoride is used.
Patent DO-P2021000080-A (DO)
Title: Protección duradera contra la bioincrustación
Inventor: BRIAN MCMURRAY
IPC: G01N31/22
Filed: 2021-04-29
Abstract: Se divulgan dispositivos, métodos y/o sistemas para su uso en la protección de elementos y/o estructuras que están expuestos, sumergidos y/o parcialmente sumergidos en ambientes acuáticos de contaminación y/o incrustación debido a la incursión y/o colonización por tipos y/o clases específicos de organismos biológicos y/o plantas, incluida la protección contra microincrustaciones y/o macroincrustaciones durante períodos prolongados de exposición a ambientes acuáticos.
Patent DO-P2021000118-A (DO)
Title: Cierre de pestaña oculta a prueba de niños para bolsas resellables y métodos
Inventor: WILLIAM BRADFORT HANSEN
IPC: B65D33/25
Filed: 2021-06-16
Abstract: Un bolsa de cremallera resellable incluye una cremallera resellable con perfiles entrelazados. Al menos uno de los perfiles tiene una pestaña de agarre con un extremo libre que se puede colocar tanto por arriba como por abajo del perfil entrelazado y una pestaña de unión por abajo del perfil entrelazado y unida a la pared de la bolsa en una porción anclada en la pestaña de unión. La pestaña de agarre se separa de la primera pared entre bordes de pared lateral opuestos de la bolsa. El perfil entrelazado complementario está unido a la pared opuesta de la bolsa. Algunas bolsas también pueden incluir una abertura en una pared lateral de la bolsa para proporcionar acceso a una porción de la pestaña de agarre.
Patent EC-SP11010776-A (EC)
Title: Quemador de gas para hornos o parrillas
Inventor: BETTINZOLI ANGELO
IPC: F23D14/10
Filed: 2011-01-21
Abstract: Quemador de gas para horno o parrilla, del tipo que comprende al menos un tubo de Venturi (16), para formar la mezcla de aire primario-gas, que tiene por lo menos una zona con una sección reducida seguida de una zona con una sección divergente, por lo menos una cámara de distribución (17) de la mezcla de combustible, situada abajo de la zona con una sección divergente del tubo de Venturi (16), y una pluralidad de agujeros de la llama (19) para la salida de la mezcla de combustible, obtenido dentro de un distribución de la cámara (17), o en la comunicación hidráulica con este último, así al menos un orificio de encendido (13) para encender el quemador. Ventajosamente, el segundo comprende al menos un conducto de derivación (12) durante una parte del flujo de la mezcla de combustible, exhibiendo su propia sección de entrada obtenida en un sector abajo de la zona con una sección reducida del tubo de Venturi (16), y su propia toma de sección de puestos a los antes dicho orificio de encendido (13).
Patent EE-201800022-A (EE)
Title: A method for the preparation of peat based organic soil improver
Inventor: LIIV Jüri
IPC: C05F11/02
Filed: 2018-08-30
Abstract: The present invention proposes a method for the preparation of peat based organic soil improverwhere highly degraded lowswamp peatwith decomposition H>8 is mixed with manure and left to react in a hermetically closed environment with temperature range at 35-70 °C for two to five days to supersede the heavier metal ions linked to peat carboxyl groups of humane acid, thereafter the peat-manure mixture is mixed with a wood ash, whereas a potassium hydroxide formed from potassium oxide by chemical reactions makes humane acids soluble, and said obtained peat-manure-wood ash mixture is then granulated, dried and packaged airtightly.
Patent EG-26333-A (EG)
Title: Hot processing of polyurethane carpet backing systems using dual delayed action catalyst.
Inventor: JENKINES RANDALL C
Filed: 2008-10-07
Granted: 2013-08-19
Abstract: A process for preparing polyurethane carpet backings uses a filled polyurethane-forming composition that contains a mixture of certain metal acetylacetonate and sulfur-containing organotin catalysts. The mixture of catalysts is particularly beneficial in instances where the composition is processed at temperatures of above 30 to about 500 C, as long pot life is provided together with a rapid thermally-induced cure.
Patent GB-189704386-A (GB)
Title: Improvements in and relating to Ring Spinning and Doubling Machinery.
Inventor: BUCKLEY JAMES
Filed: 1897-02-18
Granted: 1897-12-18
Abstract: 4386. Buckley, J., Buckley, J. H., and Ashworth, E. Feb. 18. Spindle apparatus.-Relates to travellers which are in the form of a pair of forks b connected by a bar a. The bar a is placed below the centre line of the forks, as shown by the dotted line *, and the inner surface of the ring is rounded, as shown in Fig. 3. The ring may be provided with a suitable oil-hole d.
Patent GB-189705622-A (GB)
Title: Improvements in Machinery for Cutting and Panning Biscuits.
Inventor: VICARS JOHN
Filed: 1897-03-03
Granted: 1898-01-15
Abstract: 5622. Vicars, J., Vicars, T., and Vicars, J. March 3. Moulding biscuits. -Machines for cutting out dough for biscuits are (1) fitted with a movable table so that the surface shall not be indented by repeatedly cutting on the same place, and (2) provided with cutters, so t h a t sufficient biscuits to fill a pan may be cut at one time, means being provided to feed the pans below the cutters. Fig. 2 shows one modification. The upper part a<1> slides on the main table a between guides a<2>, being actuated by the cam c through the pin d and arm e. In another modification, an endless band of rubber is arranged to be moved at intervals over the table by ratchet or similar mechanism, and in a further modification, the table as a whole is mounted on rollers and caused to reciprocate. Figs. 8 and 11 show cutters and feed-mechanism. The cutter head 2 slides in guides 3, being operated by a cam through the rods 6 and 6<a>. It carries the cutting-box 8 to which the cutters 9 are attached. The ejectors are carried by rods 11 from a plate 12, which is movable relatively to the box 8 by the rods 13 and suitable mechanism. A flexible cover 17 is fitted over the box, and when it is raised it causes a partial vacuum, so securing the lifting of the biscuits. The pans are fed by an endless chain 19 above the layer of dough, so that the latter may be fed into position for the next cutting while the biscuits are being ejected on to the pan.
Patent GB-189707189-A (GB)
Title: Improved Means for Supplying Current to Electrical Cars.
Inventor: OTT MICHAEL
Filed: 1897-03-19
Granted: 1897-11-20
Abstract: 7189. Ott, M., and Silbermann, A. March 19. Electric railways and tramways on a sectional conductor system with mechanical switches. Conductors; switches; collectors. -Projections i on the wheels depress spring pins c in the rail into contact with an insulated conductor g, so as to complete the circuit.
Patent GB-189722335-A (GB)
Title: Improvements in Clips or Carriers particularly Applicable for Attaching Pumps or Inflators to the Framework of Velocipedes.
Inventor: BATE HENRY ALFRED
Filed: 1897-09-29
Granted: 1898-09-29
Abstract: 22,335. Bate, H. A. Sept. 29. Clip suspenders.-Relates to clips or carriers particularly applicable for attaching inflators to velocipedes. The clip consists of an elastic band having notches C and F and holes B and D as shown in Fig. 1. Fig. 3 shows the method of attachment. The band is placed round the frame tube, and the end B threaded through the hole D so that the notches C engage the band. The ends are then passed round the inflator, and the end E passed through the hole B so that the notches F engage the hole B. The end E may be stiffened by the insertion of a vulcanite or other strip.
Patent GB-189723728-A (GB)
Title: Improvements in Cycle Dress Guards and in Means for Attaching and Detaching the same.
Inventor: CROWLEY JOHN SIDNEY
Filed: 1897-10-15
Granted: 1898-01-08
Abstract: 23,728. Crowley, J. S. Oct. 15. Guards, dress.-Relates to means for attaching and detaching dress guards with straight cords. In the arrangement shown in Fig. 1, the quadrant is formed in two parts a, b, the former being easily removable. The cords e are secured to the part a by hooks d fitted with springs c. The hooks may be formed of wire or sheet metal. The ends of the cords are fitted with hooks as shown in Fig. 4 for attachment to the mud guards. These hooks are formed of sheet metal, having serrated edges f which are bent over as shown and may be fitted with a safety catch. If elastic cords are employed, the springs c may be dispensed with, the cords being passed through holes in the quadrant. In modified arrangements, the springs c may be connected to the mud guards instead of to the quadrant.
Patent GB-189724221-A (GB)
Title: Malted Oats and Oatmeal.
Inventor: HILL ALFRED
Filed: 1897-10-20
Granted: 1898-11-19
Abstract: 24,221. Hill, A. Oct. 20. Processes of treating grain; malted meal.-Oats, whether in the form of grain or meal, are treated with malt so as to render them more digestible.
Patent GB-189724794-A (GB)
Title: Improvements in Spring Attachment Devices for Stirrups.
Inventor: HOLLISTER WILLOUGHBY FITZGREEN
Filed: 1897-10-26
Granted: 1897-12-11
Abstract: 24,794. Hollister, W. F. Oct. 26. Stirrup staps, suspending.-A short strap 13 attached to the stirrup is connected to the stirrup strap 2 by a spring connection consisting of two yokes 6, 8 and 11, 14 surrounded by springs 3, 4 with which they are connected by their hooked ends 9, 15. The spring 4 is made stronger than the spring 3, to suit different riders, a light rider bringing only the light spring 3 into operation. The springs are encased in a leather tube extended at 19 to form a flap and prolonged at 22 where it is riveted to the strap 13. The springs are rendered inoperative during mounting by a hook 17 passing through the hole 18 and below the bar 11.