baber/WOPTO huggingface dataset:
Patent KR-200495878-Y1 (KR)
Title: 2개의 평면 엘리먼트들을 유지하기 위한 클립
IPC: F24S25/634
Filed: 2017-05-30
Granted: 2022-09-08
Abstract: 본 고안은 2개의 평면 엘리먼트들의 주 표면 상에 결합 조립된 2개의 평면 엘리먼트들을 유지하기 위한 클립(1)에 관한 것이며, 클립은 그루브(3a, 3b)가 각각 장착된 적어도 2개의 측벽들(2a, 2b)을 포함하며, 그 그루브(3a, 3b)는 상기 클립(1)이 2개의 조립된 평면 엘리먼트들 상에 삽입될 수 있게 하고, 2개의 조립된 평면 엘리먼트들을 서로에 대하여 유지할 수 있게 하도록 개방 및 구성된다.  측벽들(2a, 2b) 중 적어도 하나에는 슬롯(12a, 12b)이 장착되며, 그 슬롯(12a, 12b)은 그루브(3a, 3b) 내로 개방되고, 벤딩 영역(14a, 14b)에 의해 벽(2a, 2b)의 나머지에 고정되는 가요성 암(13a, 13b)을 정의한다.  가요성 암(13a, 13b)의 자유 단부는 적어도 그루브(3a, 3b)를 부분적으로 차단하는 정지부(15a, 15b)를 지지한다.
Patent KR-200496389-Y1 (KR)
IPC: A01K97/22
Filed: 2020-06-04
Granted: 2023-01-31
Abstract: 본 고안은 폴대 연결에 사용되는 주요부품을 시판되고 있는 규격의 너트와 나사봉으로 사용할 수 있도록 하여 일일이 부품을 기계가공해야 하는 번거로움을 해소할 수 있고, 너트를 폴대 내에 고정하기 위한 부품은 금속보다 비교적 가격이 저렴한 재질인 합성수지를 이용하여 사출성형으로 제조함으로써 기계가공에 비하여 제조가 쉬운 것은 물론이고 제조비용을 대폭 절감할 수 있는 수상좌대용 폴대의 연결조립체를 제공한다.    
본 고안의 수상좌대용 폴대 연결조립체는, 폴대의 안둘레면에 압입고정되는 외측고정면과, 육각머리홈을 형성하는 내측고정면을 구비하고, 합성수지재를 사출성형하여 제조되는 압입고정부재와, 압입고정부재의 육각머리홈에 끼워져 결합되는 금속재의 육각머리너트와, 육각머리너트와 나사결합하기 위한 금속재의 나사봉을 포함하며, 상기 압입고정부재 2개를 한쌍으로 하여 육각머리너트 양쪽에 육각머리홈을 끼워결합한 상태에서 양쪽 폴대의 안둘레면에 2개의 압입고정부재를 각각 압입고정하여 육각머리너트를 설치하고, 상기 양쪽 폴대에 설치된 육각머리너트와 나사봉을 나사결합하여 이루어진다.
Patent KR-200496191-Y1 (KR)
Title: 고양이 사료 배급기
IPC: A01K5/01
Filed: 2022-08-30
Granted: 2022-11-23
Abstract: 본 고안은 고양이 사료가 저장되고 배급되는 부위가 무해하고 변질되지 않으면서 세척할 수 있는 재질로 이루어지며 배급기에서 분리 결합 가능하게 설치됨으로써 매우 위생적으로 사용하며 관리할 수 있는 고양이 사료 배급기에 관한 것이다. 
이에, 본 고안에 따른 고양이 사료 배급기는 하우징(100)에서 분리 가능하게 사료 공급부(110)의 내측에 배치되고, 저부에 제1배출공(210)이 형성되며, 고양이 사료(F)가 저장되는 합성수지 재질의 사료 저장용기(200)와; 상기 하우징(100)의 하측에 전후 방향으로 인출입 가능하게 설치되되 하판부재(310) 상에 합성수지 재질로 이루어진 상판부재(320)가 분리 가능하게 결합되는 배급부재(300)를 포함한다.
Patent PH-22015000237-Y1 (PH)
Title: Detection of pathogens
Inventor: DESTURA RAUL V
IPC: C12Q1/04
Filed: 2015-05-19
Abstract: The present utility model relates to a methods and diagnostic kits for the rapid detection of different pathogens employing the loop-mediated isothermal amplification platform (LAMP) that may be performed or used even outside the laboratory. The said utility model uses novel primer combinations for sequences within the housekeeping genes of the target organism.
Patent PH-22017000355-Y1 (PH)
Title: Process of producing wine from garcinia vidalii merr. and the product derived thereof
Inventor: NANCY ANN P GONZALES
IPC: C12G3/02
Filed: 2017-07-05
Abstract: A process of producing wine from bili (Garcinia vidalii Merr.) fruit comprising the steps of: preparing the ingredients by gathering, cleaning and washing the matured fruit thoroughly; paring the matured/ripe Garcinia vidalii Merr. fruit, removing the seeds of the Garcinia vidalii Merr.; weighing 250 grams of Garcinia vidalii Merr. and add 250 ml water; boil for 30 minutes; straining; measuring 500 ml of Garcinia vidalii Merr.; cooling the Garcinia vidalii Merr. juice; adding 250 grams brown sugar and 5 grams of yeast; pouring the Garcinia vidalii Merr. in the bottle and cover with cloth or gauze; fermenting for 30 days; straining and transferring to another bottle; pasteurizing fermented wine, maintaining a temperature of 30 degrees centigrade for 30 minutes; cooling the pasteurized wine; packaging the Garcinia vidalii Merr. wine.
Patent BR-202014010829-Y1 (BR)
Title: disposição construtiva aplicada em gabarito
Inventor: ALUISIO VIEIRA DE VASCONCELOS
IPC: B25B11/02
Filed: 2014-05-06
Abstract: disposição construtiva aplicada em gabarito, compreendendo base de furação (a), fim de cursor (b), régua graduada (c), ou opcionalmente uma haste (h) que terá a mesma função e trava (d), a base de furação (a) é dotada de furos (e) e abertura retangular (f), seu lado posterior é provido de aba (g), o gabarito é produzido em aço 1045, seu campo de apiicação pertencente à montagem de móveis.
Patent BR-202014025181-Y1 (BR)
Title: triturador e compactador de poliestireno expandido.
Inventor: FERNANDO HENRIQUE PEREIRA
IPC: B29B17/00
Filed: 2014-10-09
Abstract: triturador e compactador de poliestireno expandido o presente modelo de utilidade refere-se a um equipamento destinado a auxiliar na trituração e compactação de poliestireno expandido (eps), enquadrando-se assim na área de gestão de resíduos sólidos. essa máquina visa à compactação em 40 vezes do volume inicial do eps, viabilizando assim seu transporte até os centros de reciclagem. o eps é inserido no equipamento por meio de um funil de alimentação. através de um único eixo de acionamento acoplado a um sistema de motoredutor adquire-se a potência necessária para transportar, triturar e realizar a pré-compressão do material. o transporte e a pré-compressão são realizados em um transportador de perfil helicoidal com diferentes passos e seções transversais nos estágios descritos. na etapa de transporte são adicionados fragmentadores denominados facas para o cisalhamento do eps, permitindo assim a trituração na fase inicial de transporte. o componente denominado comporta limitará a passagem, aumentando-se assim a taxa de compactação através de um processo de prensagem. por fim, na saída do equipamento tem-se o eps compactado em seção transversal quadrada, podendo ser cortado em qualquer unidade de comprimento de acordo
Patent BR-202017018184-Y1 (BR)
Title: Disposição construtiva em colheitadeira de grãos de uva
Inventor: ANDERSON GIACOMIN
IPC: A01D46/28
Filed: 2017-08-24
Abstract: A presente DISPOSIÇÃO CONSTRUTIVA EM COLHEITADEIRA, com sistema de colheita latado, no campo dos equipamentos agrícolas, mais especificamente compreende uma caçamba coletora(7) dotada de um cilindro giratório (1) munido de discos de colheita que possuem hastes flexíveis duplas (2), e composto por um eixo metálico (5) com um furo transversal (6), responsáveis por maior trepidação na colheita, e um prolongamento de eixo (8) que possibilita a inclusão de mais discos de colheita (9), bem como através de um tubo acoplado (16) que permite uma expansão lateral das paredes para ampliação da área da colheita, além de uma movimentação lateral do conjunto colhedor por meio de uma peça de deslocamento(17)
Patent BR-202018013678-Y1 (BR)
Title: Espeto pressurizado
Inventor: MAICOL ALVES PACHECO
IPC: A47J37/07
Filed: 2018-07-04
Abstract: ESPETO PRESSURIZADO Trata-se de espeto pressurizado, tipo vaso sob pressão que possui disposição construtiva com a forma geométrica de um recipiente hermético preferencialmente de corpo cilíndrico (1) ou oval ou prismático com secção poligonal, e com tampa (3) em uma das extremidades do corpo cilíndrico (1) e o corpo cilíndrico (1) possui, em sua parede externa, manípulo (1.1), o tampo fixo (2) com alça (2.1), uma ou mais válvula de segurança (9) e válvula limitadora da pressão (10), e o corpo cilíndrico (1) possui na base oposta da tampa (3), parede rígida lacrada com uma ou mais ponteiras (7) em forma de haste rígida paralela ao eixo do corpo cilíndrico (1), e o corpo cilíndrico (1) possui em sua parede interna uma ou mais guias (81) em forma de perfil reto longitudinal dispostas paralelas ao eixo do corpo cilíndrico (1).
Patent BR-202019025189-Y1 (BR)
Title: dispositivo de travamento e liberação do cabeçote da torre telescópica para hélice continua
Inventor: ANDRÉ LOPES
IPC: E21B7/00
Filed: 2019-11-28
Abstract: “DISPOSITIVO DE TRAVAMENTO E LIBERAÇÃO DO CABEÇOTE DA TORRE TELESCÓPICA PARA HÉLICE CONTINUA”. Compreendido por uma torre, provida no extremo inferior uma sapata de sustentação, acima da qual verifica-se uma morsa hidráulica e no extremo superior é provido de uma cabeça, abaixo da qual verifica-se um guincho auxiliar e um cabeçote de perfuração dotado superiormente um tubo guia e inferiormente um trado este provido superiormente de um prolongador, cuja secção superior é dotado de cabeça giratória, caracterizado pela torre ser bipartida formando uma secção primaria e secundaria, esta provida internamente de haste extensora dotada transversalmente de compartimento que acondiciona um dispositivo de travamento, formado por uma lingueta que descreve na secção inferior uma parede oblíqua guia, enquanto a secção superior verifica-se plana formando uma base de sustentação, sendo que a secção traseira projeta um segmento cilíndrico para acondicionamento de uma mola, dita base de sustentação promove o travamento do cabeçote de perfuração, sendo dita haste extensora comandada por cilindro pneumático.
Patent BR-202022020179-Y1 (BR)
Title: Disposição construtiva aplicada em evaporador e condensador aramado de alumínio
Inventor: DUARTE RODRIGO
IPC: F25B39/00
Filed: 2022-10-05
Abstract: disposição construtiva aplicada em evaporador e condensador aramado de alumínio. compreendido por um evaporador (1) e condensador (2), ambos confeccionados em tubos de alumínio (3), dotados de arames de alumínio (4) fixados através de solda com ou sem a adição de outro metal ou ligas de soldas, brasagem, estampagem, travamento e outros tipos de fixações.
Patent IT-221139-Z2 (IT)
Inventor: CIANCIAVICCHIA DOMENICO
IPC: A61M1/16
Filed: 1990-02-08
Granted: 1994-02-16
Abstract: A flowmeter (1) comprising two U-shaped coplanar tubes (2, 3) carrying an upstream fluid ( PHI 1,  PHI 2); a body (4) inside which the ends of the tubes (2, 3) are fitted; first means (27) for oscillating the tubes (2, 3) at their resonance frequency about an axis (A-A) defined by the points at which the tubes (2, 3) are fitted to the body (4); and second means (32, 33) for determining the tilt angle of central portions (5, 6) of the tubes (2, 3) opposite the body (4). From each central portion (5, 6), there originate two lateral arms (7, 11 and 8, 12); the arms (7, 11) of the first tube (2) respectively defining an obtuse and an acute angle with its central portion (5), and the arms (8, 12) of the second tube (3) respectively defining an acute and an obtuse angle with its central portion (6). <IMAGE>
Patent IT-223259-Z2 (IT)
Title: Giunto di interconnessione fra pannelli, in particolare per la reali- zazione di strutture termoisolanti.
Inventor: MICHELETTO ALDO
IPC: F25D/
Filed: 1991-06-27
Granted: 1995-06-21
Abstract: Il giunto comprende un primo ed un secondo profilato (P1, P2; P1', P2') atti ad essere fissati ai lati di estremità di due pannelli (A, P) da interconnettere e sagomati in modo tale per cui nella loro condizione accoppiata essi definiscono una sede longitudinale (11, 12). Un profilato (P1,P1') presenta un incavo longitudinale (8) dal profilo arrotondato atto a ricevere un rilievo longitudinale parimenti arrotondato (9) dell'altro profilato (P2, P2').Un elemento di bloccaggio (C) viene inserito assialmente in detta sede (10, 11) ed impedisce il disaccoppiamento di detti profilati (P1, P2; P1', P2'). (Figura 1)
Patent YU-593-A (YU)
Title: Stočna hrana i dodatak njoj ili vodi za piće koji poseduje antibiotičku smešu gentamicina s linkomicinom ili klindamicinom
Inventor: SEVER B
IPC: A23K20/195
Filed: 1993-01-06
Abstract: Opisana je nova stočna hrana i dodatak njoj ill vodi za piće, koji poseduje antibiotičku smešu 1 masenog dela gentamicina i 5 do 60 masenih delova linkomicina ili klindamicina, prvenstveno u obliku njihovih farmakološko prihvatljivih kiselinsko adicijskih soli, za povećanje prirasta telesne mase kod tovljenika. Za povećanje prirasta telesne mase kod živine je izuzetno delotvorna smeša gentamicin sulfata i linkomicin hidrohlorida.
Patent CR-8370-A (CR)
Title: Metodos y composiciones para inhibicion de selectina
Inventor: NEELU KAILU
IPC: C07D409/06
Filed: 2006-04-27
Abstract: Esta relacionada con el campo de las sustancias anti-inflamatorias, de manera mas particular a nuevos compuestos que actuan como antagonistas de las proteinas de adhesion de mamifero conocidas como selectinas.
Patent CR-8762-A (CR)
Title: Sistema mejorado para enmarcar
Inventor: HILDRETH JOHN
IPC: E04B1/00
Filed: 2006-11-21
Abstract: La presente invencion satisface la necesidad anteriormente mencionada a una gran extension mediante el suministro de una pared de esquileo enmarcada que tiene un par de correas de tension cruzadas que pasan a traves de las barras que forman la pared de esquileo.
Patent IS-4512-A (IS)
Inventor: JOERGENSEN-BECK FRODE
IPC: B65D85/60
Filed: 1997-06-26
Abstract: PCT No. PCT/DK96/00002 Sec. 371 Date Jul. 7, 1997 Sec. 102(e) Date Jul. 7, 1997 PCT Filed Jan. 4, 1996 PCT Pub. No. WO96/20873 PCT Pub. Date Jul. 11, 1996In carton boxes of that particular dispenser type, where the broad front side (2) of the box exhibits a dispenser opening, which is internally covered by a slide panel (18) with an opening (20), the slide panel is displaceable into a dispensing position by an outward pivoting of an associated end flap (26) of the box. The slide panel is prevented from falling into the box in that it has laterally projecting side flaps (28) which ride on the top edges of inner, upright side wall portions (8) of the box, this riding engagement being secured by the side flaps being folded down along the upper, exterior area of the side wall portions (8). Outer side wall portions (12) folded own from the front or top panel (2) are at their lower edge area welded or glued to the root zone of the inner, upright side wall portions. The associated folding of the said side flaps (28) may result in an inward pivoting of the inner side wall portions (8), which in turn disables a perfect face-to-face engagement in the lower joining zone (A, B) between the side wall portions. According to the invention this drawback is eliminated in arranging for a longitudinal cutting line (C) near the middle of the inner side wall portion (8), such that by the folding down of the side flap (28) it will only be the strip area above this line which is forced inwardly, while the remaining lowermost strip area can be joined safely face to face with the outer side wall portion (12).
Patent JP-H1027500-A (JP)
Title: Method for testing high speed disturbance of semiconductor storage and word line decoder
Inventor: SO HEISEI
IPC: G11C11/401
Filed: 1997-01-06
Abstract: PROBLEM TO BE SOLVED: To shorten and accelerate a disturbance test time by simultaneously selecting a plurality of word lines and disturbing them. SOLUTION: A figure is a block figure of a predecoder of this word line decoder, and shows the predecoders 3, 5, and they are operated in a normal mode when an output QA of a flip-flop 9 is '0', and are operated in a test mode when '1'. When the predecoders are operated in the normal mode, the predecoder 3 is the same as a regular decoder, and selects only a piece of word line to be operated as a row decoder. In the test mode, since all of lines T0 and T1 become '1', addresses B0, B2 or B1, B3 predecoded according to the value of the address A2 are selected to be inputted to a decoder not shown in figure.  In such a case, since two word lines are selected simultaneously according to the values of the addresses C0-C3, only the combination of eight pieces of addresses may be considered for disturbing all of 16 pieces of word lines, and the whole disturbance time is reduced to 1/2 compared with a usual method.
Patent JP-H09185569-A (JP)
Title: Method for determining transmission time of terminal equipment and terminal equipment in communication network
Inventor: NAITO YOSHINOBU
IPC: G10K15/04
Filed: 1996-01-04
Abstract: PROBLEM TO BE SOLVED: To prevent the centralization of transmission in executing transmission to a host device by the initiative of a terminal equipment. SOLUTION: A cental controller 31 compares a transmission time read from a hard disk 33 and a present time clocked by an electronic timer 34 with each other. When it is the transmission time judging from the result, the cental controller 31 calls an information center 1 through a public line network 5 to transmit a password. Then OK of the password is transmitted from the information center 1 and connection is completed.
Patent TR-27297-A (TR)
IPC: B66B13/30
Filed: 1994-01-10
Abstract: In the pre-assembly of a hoistway door, pre-assembled hoistway-door units (11) are fitted into hoistway-door openings (7) equipped beforehand with dowel plate ((4), door-girder angle (5) and fastening plate. On the underside of the hoistway-door unit (11), a projecting threshold-girder plate has notches at both front ends. When the threshold-girder plate is put down on the door-girder angle (5), the notches engage in a cut-out in the door-girder angle (5). The cut-out has the same spacing as the notches. There are locking mechanisms (13) on both sides on the top of the hoistway-door unit (11). The locking mechanisms (13) have locking bolts which are pushed into locking pockets (9) on the lateral fastening plates and also fix the hoistway-door unit (11) at the top. Cover angles which can be extended laterally at the hoistway-door unit (11) and can be fixed to the lateral fastening plate by means of punched-out folded lobes bridge the lateral assembly air gap. Finally, the top assembly air gap still present and the visible fastenings are covered with cover profiles and lining plates. During the entire assembly time, the hoistway-door opening (7) is secured with a safety barrier to prevent persons from falling in. <IMAGE>
Patent DK-18385-A (DK)
Inventor: VICTOR ALAN MICHAEL
IPC: H04B/
Filed: 1985-01-15
Abstract: Superheterodyne radio receiver 200 with the ability to select several channels, with a first frequency synthesizer 230 which is able to develop any of a predetermined number of first oscillator frequencies for mixing with an incoming signal, to form a first intermediate frequency. A second frequency synthesizer 235 develops selectively one of two oscillator frequencies which corresponds to either high or low side injection for mixing with the first intermediate frequency, to form a second intermediate frequency. A frequency selector circuit 260, 255, 250 is connected to two synthesizers 230, 235 to select a suitable one of the first oscillator frequencies in order to set the receiver to the required channel and to select a suitable one of the second oscillator frequencies in order to eliminate self-disconnecting error signals in the receiver. <IMAGE>
Patent DK-19885-A (DK)
Inventor: COMBOURIEU MICHEL
IPC: C07D405/12
Filed: 1985-01-16
Abstract: The present invention relates to new compounds of the general formula:    <IMAGE>  I  in which X represents oxygen or sulphur and R represents a linear or branched alkyl group with 1 to 7 carbon atoms, and pharmaceutically acceptable acid addition salts thereof, having valuable cardiovascular properties.
Patent DK-29080-A (DK)
Inventor: JEAN L
IPC: E04G1/15
Filed: 1980-01-23
Abstract: 1.  A device for mounting on a scaffold a single-piece floor-element forming a complete floor-section extending between two lateral vertical scaffolding frames, by resting at its ends by means of hanging lugs (12) on horizontal cross-members (11) of the said frames, the said hanging lugs (12) comprising rigid pins (18) inserted in the said horizontal cross-members (11), characterized in that the said pin (18) of each lug (12) fastened to the ends of the floor element (10) is greater in length than the diameter of the horizontal cross-members (11) and is inserted in a corresponding vertical diametrical hole (25) of the said cross-members (11) to form a rigid semi-embedment of the floor element (10) in the cross-members (11).
Patent DK-57083-A (DK)
Inventor: ANDERSSON KURT GOETE INGVAR
IPC: B65G15/42
Filed: 1983-02-10
Abstract: A device for conveying pieces of dough through a fermentation chamber and/or a baking oven comprises a metallic transport band with upstanding lateral ribs of elastomeric material, especially silicon rubber, each having a continuous external groove of a depth approximating half the thickness of the rib which facilitates the fastening of the rib to the band and allows the rib to flex outward on passing around end rollers supporting the band. The band may also be provided with spaced-apart wooden flights bridging the space between the ribs for entraining the goods to be treated.
Patent DK-61389-A (DK)
Inventor: EVANS KENNETH ARTHUR
IPC: A61Q11/00
Filed: 1989-02-10
Abstract: This invention relates to toothpaste containing an alumina hydrate abrasive and flavouring. According to the invention, there is provided a toothpaste containing flavouring and unmilled, precipitated alumina trihydrate as an abrasive, wherein the alumina trihydrate particles have a median particle size of at least 3 micrometres. The median particle size of the alumina trihydrate is preferably below 30 micrometres, more preferably from 5 to 20 micrometres, and most preferably 8 to 12 micrometres. It has been found that the use of an unmilled alumina trihydrate, obtained by precipitation, reduces the amount of flavouring material required to obtain a given flavour strength when compared with an equivalent content of milled alumina trihydrate of similar particle size.
Patent DK-73092-A (DK)
Inventor: HANSEN HANS SPANGENBERG
IPC: B28B3/04
Filed: 1992-06-01
Abstract: In concrete block making machines a mould 8 divided into cells is used, and an overlying counter plate 12 with pressure foot plates 16, which can be pressed down in order to compress the concrete mass in the casting cells 10 and to expel the cast concrete fabrications by lifting the mould.  The mould 8 is fixed to bottom carriers 24 and the counter plate 12 to an overlying carrier head 6 and accurately centred in relation to one another, which calls for great accuracy when forming holes for clamping bolts, in the same way that clamping of the counter plate is difficult to perform.  In the invention a direct pre- centring of the counter plate 12 in the mould 8 is performed, using distance pieces 52, and so that all moulding equipment 8, 12 is inserted into the intermediate space between the carrier head 6 and the mould carrier 24, following which the mould is fixed to the latter.  In the insertion a "fluid" engagement is established between interacting holder parts 44, 46 on the top of the carrier head and, after fixing of the mould, pressure cylinders 48 are actuated to draw the holder parts 46 of the carrier head up for clamping of the counter plate in the centred position.  The distance pieces are then removed and the equipment can be put into operation. Fitting of the counter plate can thus be easily performed and it is possible to work with very rough tolerances. <IMAGE>
Patent GB-1021424-A (GB)
Title: Improvements in and relating to balls
Inventor: OSBORNE DENIS ANTHONY NORMAN
IPC: A63B37/00
Filed: 1962-01-02
Abstract: The cores of balls, and particularly golf balls, are impregnated with a polyurethane covering composition.  The composition may be formed by reacting suitable polyesters (for example polyethylene glycol adipate), polyethers (e.g. polyglycols obtained from propylene oxide and tetrahydrofuran) or polyesteramides with an organic polyisocyanate or polyisothiocyanate (e.g. naphthalene diisocyanate, toluene diisocyanate or diphenylmethane diisocyanate). The resultant prepolymer is mixed with a cross-linking agent such as butane diol or an amine, fillers, mineral oils and colouring materials being added to the mixture if desired. In a particular example described, a liquid polyurethane prepolymer obtained from polytetrahydrofuran and toluene-diisocyanate is mixed with titanium dioxide and methylene-bis-(ortho-chloroaniline).ALSO:A ball comprises a cover of a polyurethane composition, and a core having a barrier which is impermeable to liquid polymers at a distance of between 0.2 mm and 3 mm radially inwards of the outer surface of the core.  The invention is particularly applicable to a golf ball, and in the preferred method of manufacture, the ball is formed by impregnating the outer surface of the core with a liquid polyurethane precursor, (which may be mixed with fillers mineral oils and colouring materials), and converting the precursor to a cross-linked polyurethane, in which case the barrier serves to limit the degree of penetration of the cover material into the core.  As described, the core may comprise either a fluid-filled, paste-filled, or solid centre, wound with layers of rubber thread and rubber tape, and the barrier is formed either by overlapping the edges of the rubber tape in one of said layers, or by dipping the core in a sealing compound at the appropriate stage of its manufacture, suitable sealing compounds being rubber latex, aqueous dispersions of synthetic rubbers, or solutions of synthetic rubbers in solvents which are not deleterious to the rubber windings of the core.