baber/WOPTO huggingface dataset:
Patent GB-1373786-A (GB)
Title: Masking device
IPC: G02F1/135
Filed: 1971-10-14
Abstract: 1373786 Modulating light EASTMAN KODAK CO 14 Oct 1971 [19 Oct 1970 (2)] 47866/71 Heading H4F [Also in Division G2] A projected image, such as one produced by illumination of a photographic transparency, is reduced in contrast either by passage through an imagewise mask, formed in a nematic liquid crystal layer 130 located with a transparent photoconductive layer 132 between two transparent electrodes 126, 128, or by passage of illuminating light through such a mask before it reaches the transparency. A D.C. potential is applied between the electrodes, and passage of light through the photo-conductive layer causes it to become conductive locally. Parts of the liquid crystal layer adjacent such conductive portions are changed to a milky white lightdiffusing material under the influence of the D.C. field so placed across them, and form a mask. The projected image, or illuminating light, may pass through either the photoconductive layer or the liquid crystal layer first, and a light source, a photographic transparency, a masking assembly and a sheet of photographic paper may be arranged in sequence. Alternatively a masking assembly S<SP>1</SP> may be located between a light source 102 and a transparency 110 which is to be projected, and may be imaged by passage of light from a second source 124, so directed by a beam splitter 116 and the objective lens 114 of projector P<SP>1</SP> that it passes through the transparency in the opposite direction to that from the source 102. After projection, the imagewise mask is erased by an A.C. potential from A.C. source 135. Suitable liquid crystal materials are N-(p-methoxybenzylibene)-p-butylaniline and a mixture of that substance with chloresteryl oleyl carbonate. The electrodes may be NESA glass, and the photoconductive material may be 4,4<SP>1</SP>-diethylamino-2,21-dimethyltriphenol methane and a polycarbonate resin together with a pyylium dye. A layer of cellulose nitrate, one micron or less. in thickness, may separate the liquid crystal layer from the photoconductive layer, which may suitably be 12 microns and 10 microns in respective thickness.
Patent GB-1418159-A (GB)
Title: Fire-insulated partition and fireproof container made therewith
IPC: E05G1/12
Filed: 1973-10-16
Abstract: 1418159 Safes J MARIOS 16 Oct 1973 48078/73 Heading E1A [Also in Division A4] A safe 1 adapted to protect its contents from damage in case of a fire is of cavity wall and cavity door construction and each of the said cavities is provided with a watersprinkler system activated by means provided on the exterior of said safe, the water circulated in the cavities being discharged from the top of the safe. The sprinkler system in the door 17 is connected to the system in the safe proper by a flexible pipe passing through aligned holes 55, 57. Water is discharged through a funnel 67, pipe 69 and outlet 71; drains 73, 75 being provided as shown. For modified arrangements applied to a filing cabinet, and a strong room Figs. 6 and 8, (not shown), should be referred whilst for minor details of control valves and sprinkler system the Specification and Figs. 2-5 (not shown), should be referred to.
Patent GB-1196975-A (GB)
Title: Improvements in Board Games
Inventor: LAST ALAN ALBERT
IPC: A63F3/00
Filed: 1967-10-25
Abstract: 1,196,975. Board game. CHESHUNT PASTIME PRODUCTS Ltd. 16 Oct., 1968 [25 Oct., 1967], No. 48485/67. Heading A6H. A board game, comprising a board, Fig. 1, having a continuous playing path divided into playing areas marked thereon, a plurality of first sets of playing cards having markings thereon which refer to objects, all of the cards in each first set referring to notionally allied objects which may be bought and sold by the players during the playing of the game, a plurality of second sets of playing cards having markings thereon which indicate actions to be taken by the players during the playing of the game, all said playing cards in all sets being associated with at least one playing area and at least one of the said playing areas, marked M, having markings which indicate that one of the playing cards in the first sets in the possession of each player shall be auctioned among the other players. Each set of the first sets of cards represents one of eight different types of antiques, the sets being placed on the appropritate areas on the board, marked A to H, each card in any one set carrying a buying price and a selling price. The second sets of cards consist of two sets of cards referring to Bad Luck and Good Luck actions placed on the board at I and J respectively. A further single pack of cards associated with playing areas may be used, namely insurance cards placed at K, in which each card of the pack may be used, upon payment of a premium, specifically for insurance against loss by flood, fire or theft. Other areas on the playing path are associated with rewards, opportunities, hazards and compulsory business transactions between players. The area marked "Antique Expert" may be associated with a pack of question cards.
Patent GB-1144044-A (GB)
Title: Plastics ammunition cartridge casing
IPC: F42B5/297
Filed: 1966-10-28
Abstract: 1,144,044. Cartridges. REMINGTON ARMS CO. Inc. 28 Oct., 1966 [24 Nov., 1965], No. 48565/66. Heading F3A. [Also in Division B2] A plastics cartridge casing 12 having an exterior coating (not shown) of a polysiloxane compound containing methyl radicals only or methyl - phenyl radicals which becomes fluidized upon firing of a propellant charge 22 contained in the cartridge and is transferred to a gun chamber from which the cartridge is fired to prevent gun-chamber buildup and corrosion. The coating may include a minor proportion of a film-forming agent selected from naphthenic acids, oleic acid, and lanolin and/or a minor proportion of wax. The casing is provided with a rear metal head 14, a base wad 18 with a primer cup 20 inserted therein, and a combined wad column and shot liner 24.
Patent GB-1557318-A (GB)
Title: Acoustic building elements
IPC: E04B1/82
Filed: 1976-11-23
Abstract: The load-bearing, sound-absorbing structural element has a thickness of at least 50 mm. Its rigid, open-cell structure is produced from a starting material such as sand, flint or granite and of a curable binder. The starting material has a particle size of between 0.5 and 2 mm. The starting material and the binder are mixed in a weight ratio of from 20:1 to 60:1. The structure has porosity in the region of from 0.15 to 0.7 and an air-flow resistance in the region of from 10 to 180 CGS units. The structural element is produced by mixing the starting material and the binder and curing this mixture in a mould. The structural element may be designed as a screen, wall, floor or ceiling. It may be used as part of a building.
Patent GB-1157140-A (GB)
Title: Device for Feeding Preshaped Tyres into a Tyre Vulcanising Press
IPC: B29D30/06
Filed: 1967-10-26
Abstract: 1,157,140. Moulding tyres. A. HERBERT and M, GUHR, [trading as LEONARD HERBERT MASCHINENFABRIK]. 26 Oct., 1967 [27 Oct., 1966], No. 48806/67. Heading B5A. A tyre is inserted into a vulcanizing press by placing the tyre 19 and a support 11 therefore around an expandable centering device 9 external of the press, expanding and contracting the device and then raising the support and tyre away from the device, opening the press and rotating the tyre support through an arc to locate the tyre between opposed mould parts. The tyre is then gripped between seating rings (43, 44), Fig. 5, (not shown), whereupon the support is disengaged from the gripped tyre and returned to a position external of the press. As shown, the support is of hollow frusto-conical shape and has a radical cut-away portion allowing it to surround the centering device and the lower seating ring. It is connected to a sleeve 22 vertically reciprocable on a rod 27 by a fluid motor 25. The rod 27, thence the support, are pivotable about the axis of a sleeve 28a by a fluid motor 31. The support lifting assembly is attached to the vertically reciprocable upper part of the press which carries the upper mould part. The press may comprise two moulds each associated with a tyre feed device which may be automatically controlled.
Patent GB-1208006-A (GB)
Title: Improvement in or relating to universal joints
IPC: F16D1/072
Filed: 1967-10-27
Abstract: 1,208,006. Making universal joints; jointing by forging. NADELLA and A. PITNER. 27 Oot., 1967 [10 Nov., 1966], No. 48908/67. Headings B3A and B3H [Also in Division F2] In a needle-roller-bearing Hooke's joint particularly for automobile vehicle steering, comprising two forks 6 each having a shaft receiving hub 14, each fork is of a single plane sheet of metal so shaped that in the region of each cross-journal-receiving bore 4 each fork branch 5 has a substantially part-cylindrical or part-conical shape and presents, in a plane perpendicular to the corresponding hub axis, an inwardly-facing concavity at 20a, such that mounting the cross by tilting is facilitated, that needle-roller cups 2 are supported, in the load direction, by zones of the bore 4 substantially in alignment with the needle rollers, and that local deformation to provide cup-retaining projections 13 is facilitated. The fork branches may be connected to the hub by part-toroidal or spherical portions. In Figs. 1, 2 the hub 14 has a thickness less than that of the fork branches 5, being pressformed by punching a sheet of metal along the hub axis X-X. An elastomer, round-section, sealing ring 7 is clamped between a cross-journal flange 8 and the internal edge 9 of the open end of one of the cups 2. The branches 5 are partcylindrically bent in a plane perpendicular to the hub axis X-X, and are connected to the hub by portions having part-toroidal surfaces 21a, 21b. In Figs. 5, 6 (not shown) each hub 14 is fixed to its shaft by radial deformation of the hub wall (32) into diametrically opposed tangential recesses (31) of the shaft, and additional securing may be effected by continuous or discontinuous welding at the free end of the hub. In Figs. 3, 4, the branches are formed by two tabs 5a, 5b of a sheet of metal which has its ends folded back to form two screw-and-nut clamping ears 25a, 25b and is then rolled into the form of a cylinder to present a shaft-receiving bore which comprises a part-cylindrical surface 23 and edge faces 24a, 24b. The bore may be splined.
Patent GB-960405-A (GB)
Title: Improvements in or relating to electric circuit-breakers
Inventor: ALDERMAN ALFRED
IPC: H01H33/86
Filed: 1959-06-02
Abstract: 960,405. Gas-blast switches. ENGLISH ELECTRIC CO. Ltd. June 1, 1960 [June 2, 1959], No. 48990/63. Divided out of 960,402. Heading H2B. The circuit-breaker of Specifications 960,402, 960,403, 960,404 and 960,406 is provided with control linkage extending from the exhaust valve and contact operating mechanism (not shown) to a remote primary actuating mechanism 19, the linkage being biased to its " trip " position by a spring 107 disposed adjacent the operating mechanism so as to place the linkage under tension. The linkage may be held in the " close " position by a releasable latch in the mechanism 19 and may be brought into the " close " position against the bias of the spring by a motor, pneumatically, hydraulically or electrically operated. In the multibreak arrangement shown, the control rods 106 of the two interrupter pairs 14 mounted on each insulator 11 are biased by springs 107, extend down support arms 13 and are connected through a bell crank lever 150 with a single control rod 151 passing down the insulator 11, the rod 151 being maintained in tension by a spring 152. The rods 151 are connected by further rods 153 to a common operating rod 154 extending to the mechanism 19. The common rod 154 may also be tensioned by a loading spring and pass to other phases in a three-phase circuit-breaker assembly. Specification 919,843 also is referred to. Reference has been directed by the Comptroller to Specification 919,843.
Patent GB-1321770-A (GB)
Title: Method of and apparatus for electrolycally etching letter and  the like on outer surfaces of annular articles
IPC: B23H9/06
Filed: 1971-10-22
Abstract: 1321770 Electrolytically etching signs on annular articles TOYO BEARING MFG CO Ltd 22 Oct 1971 [19 Dec 1970] 49205/71 Heading C7B Letters, etc., are electrolytically etched on annular articles d by rolling the annular article over a flat fixed electrode 2a on the upper face of which is embossed the required sign 2 whilst maintaining a fixed distance between the annular article and the fixed electrode and electrolyte filling said gap. As shown rails 5 on either side of the fixed electrode support the article above the electrode with the required gap; movement of the article being provided by continuous belt 18, and current supplied thereto by sequential contact with the series of contact plates 19.
Patent GB-1207719-A (GB)
Title: Method of controlling interaction between pretreating and hydrocracking stages
IPC: C10G49/26
Filed: 1968-10-21
Abstract: 1,207,719. Upgrading hydrocarbons. MOBIL OIL CORP. 21 Oct., 1968 [6 March, 1968], No. 49883/68. Heading C5E. In a method of upgrading a hydrocarbon feed containing polycyclic aromatic compounds and N 2  and S compounds, to a material in the gasoline boiling range by a catalytic hydrogenation pretreating stage followed by a catalytic hydrocracking stage, the severity of both steps is controlled in response to the concentration of polycyclic aromatic compounds in (a), the feed to the pretreating stage, and/or (b) the effluent passed from that stage to the hydrocracking stage, and/or (c) a recycle hydrocarbon stream to the second stage. The concentration may be measured continuously or intermittently by visible and U.V. absorption spectroscopy, or by gradient elution chromatography, mass spectrometry, I.F. absorption spectroscopy, gas-liquid chromatography, or magnetic resonance, andprocess variables controlled may be space velocity, H 2  circulation, temperature, or the amount of condensed-ring polycyclic aromatics in the feed to the first stage, see Fig. 1 (not shown). The process is applicable to distillates having a B.R. of 400‹ to 1100‹ F. or residuals free of ash and asphaltic constituents, examples being given. The pretreating step may be carried out at 600‹ to 900‹ F., a hydrogen partial pressure of 1000 to 3500 p.s.i.g. LHSV of 0À2 to 5 v./v./hr., and a H 2  circulation rate of 1000 to 20,000 SCF/B. Corresponding values for the hydrocracking stage are: 450‹ to 900‹ F., 500 to 3000 p.s.i.g., 0À1 to 10 v./v./hr., and 1000 to 20,000 SGF/B. There may be two or more hydrocracking stages, and it is stated that the pretreating and hydrocracking steps may be conducted together in a single stage. Many examples of catalysts for both stages are given.
Patent GB-1210385-A (GB)
Title: An article of metal to be worn on the person
Inventor: MUNTZ FREDERICK ALAN IRVING
IPC: A44C5/00
Filed: 1967-11-02
Abstract: 1,210,385. Ornaments. F. A. I. MUNTZ. 25 Oct., 1968 [2 Nov., 1967], No. 49939/67. Heading A3H. A bracelet 10 or anklet is made from copper and has inner and outer strips 11, 12 respectively, of gold or silver, or of other metal which has an electro-chemical potential more negative than that of copper.
Patent GB-1094390-A (GB)
Title: Preparation of í¸-pregnatriene compounds
IPC: A61K31/57
Filed: 1965-11-25
Abstract: D 1,3,5(10) - 19 - nor - 9b ,17a  - pregnatrienes and 17a  - (hydroxy or hydroperoxy) - D 1,3,5(10) - 19 - nor-9b -pregnatrienes are prepared by hydrogenation of the corresponding D 9(11)-pregnatetraenes with approximately one molar equivalent of hydrogen in the presence of a catalyst consisting of or containing a metal of Group VIII of the Periodic Chart.  20 - Cycloethylenedioxy - 3 - methoxy - D 1,3,5(10),9(11) - 19 - nor - 17a  - pregnatetraene is prepared by the sequence D 5-pregnen-3b ,17a ,19, 20b -tetrol (by reduction of 20-one, prepared in turn by saponification of the 17-acetate) --> 3,19,20 - triacetate --> D 5 - 17a  - pregnene - 3b , 19 - diol - 20 - one diacetate --> 20 - ketal --> D 4 - 3 - one --> 20 - cycloethylenedioxy - D 4-17a  - pregnen - 3 - one - 19 - acid --> 20 - cycloethylenedioxy - D 1,3,5(10),9(11) - 19 - nor - 17a -pregnatetraen-3-ol \-required 3-ether.  3 - Methoxy - D 1,3,5(10),9(11) - 19 - nor - 17a  -pregnatetraen - 20 - one is prepared from the free 3-ol, prepared in turn by the sequence D 5 - 17a  - pregnene - 3b ,19-diol - 20 - one diacetate --> D 4 - 17a  - pregnen - 19 - ol - 3,20 -dione --> 19-oic acid --> required product. The corresponding 16a -methyl compounds are prepared similarly.  D 1,3,5(10),9(11) - 19 - nor - pregnatetraene - 3,17a -diol-20-one is prepared from D 4-pregnen-17a -ol-3,20-dione - 19 - oic acid, itself prepared from the 19-ol.  D 1,3,5(10),9(11) - 19 - nor - pregnatetraen - 3 - ol - 20 - one is prepared similarly, and is converted to the 3-tetrahydropyranyl ether, this to 3 - tetrahydropyranyloxy - 17a  - hydroperoxy - D 1,3,5(10),9(11) - 19 - nor - pregnatetraen-20-one and this to 17a -hydroperoxy-D 1,3,5(10),9(11) -19-nor-pregnatetraen-3-ol-20-one.  D 1,3,5(10),9(11) - 19 - nor - pregnatetraene - 3,17a , 20b -triol is prepared by reduction of the 20-one, and both are converted to the 3-hydroxyethoxy ethers.  3 - Methoxy - D 1,3,5(10),9(11) - 19 - nor - pregnatetraen-17a -ol-20-one and the 20b -ol are prepared by etherification of the 3-ols.  The 20b -ol is then converted to the 20-acetate.  By similar methods are prepared 16a -methyl-D 1,3,5(10),9(11)\h - 19 - nor -pregatetraen - 3 - ol - 20-one and the 17a -hydroperoxy derivative thereof. The first named of these is then converted to the 3-methylether and this to the 17a -hydroperoxy derivative.  The 16b -methyl compounds are prepared similarly.  3 - Methoxy - 20 - cycloethylenedioxy - D 1,3,5(10),9(11) - 19 - nor - pregnatetraen-17a -ol is prepared by ketalization.
Patent GB-1342375-A (GB)
Title: Rectifier apparatus
IPC: G05D23/275
Filed: 1971-10-28
Abstract: 1342375 Automatic temperature control LIDYLITE CORP 28 Oct 1971 [10 Nov 1970] 50179/71 Heading G3R [Also in Division H1] In apparatus where a plurality of rectifiers on a heat sink are cooled by liquid coolant through a heat exchanger, the flow of liquid coolant in the heat exchanger secondary circuit is terminated if the measured temperature of the heat sink is at or below a predetermined value. In the embodiment, a temperature responsive switch 52, mounted on the rectifiers' heat sink, includes a bi-metal strip 108 which opens the  switch at a preset, adjustable temperature to switch off a triac 114 in series with transformer 116 and a solenoid coil 118. The de-energized coil closes a supply valve for coolant e.g. water to a heat exchanger, thus allowing the temperature of the fluid e.g. propylene glycol, which is pumped through the heat sink, to rise due to the heat dissipated by the rectifiers, preventing condensate forming on the heat sink.
Patent GB-1308440-A (GB)
Title: Refrigeration systems
IPC: F25B41/10
Filed: 1971-10-28
Abstract: 1308440 Osmotic membrane GENERAL MOTORS CORP 28 Oct 1971 [30 Oct 1970] 50184/71 Heading B1X [Also in Division F4] The receiver-vaporizer in an ejector-type refrigeration system is divided into two chambers by an osmotic membrane to allow oneway refrigerant flow therethrough. In a preferred form the membrane is a silicone elastomer but it is stated that other elastomers, other plastics and other materials may be used e.g. fluorosilicones, polychloroprenes, acrylonitrilebutadienes, styrenebutadienes, polyisobutylenes, ethylene-propylene polymers, natural or synthetic polyisoprenes, fluorinated elastomers polysulfides, polyacrylates, chlorosulfonated polyethylenes, polyurethanes and polybutadienes. The osmotic membrane may be of planar or tubular form. In the embodiment of Fig. 3 and 4 (not shown) the membranes (230) are generally cylindrical with undulating outer surfaces. Liquid flows through the spaces between outer tubes (228) and the membranes, through the membranes and inner perforated cylinders (231) into central compartments (232).
Patent GB-1140307-A (GB)
Title: Cooling devices for cylindrical electrical components
IPC: H01L23/40
Filed: 1967-11-06
Abstract: 1,140,307. Cooling discharge apparatus and semi-conductors. E. JGER. 6 Nov., 1967 [23 Nov., 1966], No. 50393/67. Headings H1D and H1K. A cooling device for a cylindrical electrical component such as a transistor 1 or a discharge tube comprises at least two segments 12 which together form a substantially complete cylindrical envelope for abutment against the component, each segment having at least one axially extending cooling rib 13 and each rib having at its outer edge a recess 17 for engagement by a spring ring 4 which holds the segments together. The ring is disposed halfway along the length of the component, and the axial length of the segments may, as shown, exceed that of the component.
Patent GB-1273824-A (GB)
Title: Improvements in or relating to methods of stimulating the production of latex from hevea brasiliensis
Filed: 1969-10-14
Abstract: 1,273,824. Stimulating the yield of latex. INSTITUT DES RECHERCHES SUR-LE CAOUTCHOUC AU CAMBODGE. 14 Oct., 1969 [24 Oct., 1968], No. 50411/69. Heading C1B. A method of stimulating the production of latex from Hevea Brasiliensis comprises applying plant hormones or products exerting hormonal activity, along strips or bands of bark, characterized in that the treated bark strips are displayed in the region of the flow area of the tapping cut which is not immediately below a downward cut or immediately above an upward cut. Suitable hormonal compounds are chlorophenoxy acetic acids or salts or esters thereof, such as 2,4-D and 2,4,5-T, which may be used in conjunction with 6-benzylaminopurine to inhibit toxic actions, and also α-naphthylacetonitrile, NAA or salts or esters thereof or MCPA or salts or esters thereof.
Patent GB-1119361-A (GB)
Title: Improvements in or relating to methods and apparatus for crimping yarns
Inventor: GILCHRIST REGINALD SELBY
IPC: D02G1/02
Filed: 1963-12-20
Abstract: 1,119,361. Crimping yarn. KLINGER MFG. CO. Ltd. 17 Dec., 1964 [20 Dec., 1963], No. 50491/63. Headings DID, D1F and D1W. A method of crimping at least two yarns simultaneously comprises feeding the yarns-which may be mono- or multi-filament yarns and include or consist of thermoplastic material, for example, nylon-through three separating means 14-15, 16-19, and 28-29, spaced apart along the yarns, rotating the two ends means, or the middle means, so that the yarns on opposite sides of the location of the middle means are twisted together in opposite directions, stopping the twisted operation, and passing the yarns through the separating means whilst maintaining the twists in the stretches of the yarns on opposite sides of the middle means. As described the middle separating means comprise rollers 16, 17 around which the yarns are respectively passed and which are rotatably mounted on bar 18 fixed in an externally toothed ring 19 which is rotated by motor 20 through variable speed transmission 19 which may include a clutch. Alternatively the middle means may comprise a rotatable pin member. The temperature of heater plates 24, 25 may differ and the number of twists in the two yarns may also differ, so that a non-torque yarn can be obtained. A variable bulked yarn may be produced by periodically altering the number of twists in the two zones-by rotating the twisting member-, or by changing the length of the twist zones-by reciprocating one or more of the separating means-. Eyes 14, 15 may be replaced by a gate tensioner or hysteresis tensioning disc. The apparatus may be modified to crimp 3, 4 or more yarns together. Yarns 10 and 11 are separated from one another at equal speeds by means of a plate 27 pivoted at 27a and having yarns guides 26, 30, 31 so arranged that if one yarn, 10 say, tends to be withdrawn at a faster speed than the other yarn, plate 27 pivots causing yarn 10 to move towards the smaller diameter end of rollers 34, 35 to reduce the speed of the yarn. The yarns may be wound on bobbins 41, 42 or on a single bobbin.