baber/WOPTO huggingface dataset:
Patent ZA-814856-B (ZA)
Title: Process for the bromination of polystyrenes
Inventor: BARDA H
IPC: C08F8/20
Filed: 1981-07-15
Abstract: The present process is one for the production of brominated styrene oligomers and polystyrene, preferably what are essentially tribrominated polystyrenes. 
<??>One preferred embodiment of the process can be summarized as consisting of:
 1. dissolving polystyrene having a molecular weight of at least 20,000 in a solvent and
 2. reacting the dissolved polystyrene with a stoichiometric excess of bromine chloride over that required for achieving the desired degree of bromination in the presence of up to about 15% by weight of the polystyrene of a Lewis acid catalyst at about 20 DEG C to about 50 DEG C. 
<??>The dominant substitution pattern in the trihalogenated product is at the 2,4,5 positions, with significantly lesser amounts of other isomers including 2,3,5. There does not appear to be any 2,4,6 substitution. A very small percentage of chlorine is believed to be nuclear bound.
Patent ZA-832625-B (ZA)
Title: An electro-optic welding lens assembly
Inventor: EGGENSCHWILER ANDRE M
IPC: A61F9/06
Filed: 1983-04-14
Abstract: An electro-optic welding lens assembly for the use in a welder's helmet or protective eyeshield comprises a filter arrangement with at least one liquid crystal light shutter element and a control unit for changing the transmission rate of the filter assembly in response to ambient light conditions. The light sensing element used to control the transmission of light through the filter arrangement is simultaneously an opto-electric transducer, supplying power to the control unit and the light shutter element. Thereby, there is no need for an additional power supply like a battery. If the sensing and transducer element is arranged behind the light shutter element, a self-regulating loop can be realized to continuously vary the transmission rate of the filter arrangement and thereby to keep the viewing illumination through the lens assembly essentially constant.
Patent ZA-838674-B (ZA)
Title: Process for the preparation of a fischer-tropsch catalyst,a catalyst so prepared and use of this catalyst in the preparation of hydrocarbons
Inventor: HOEK AREND
IPC: C07C9/00
Filed: 1983-11-21
Abstract: A Fischer-Tropsch catalyst is prepared by impregnating a silica carrier with a solution of a zirconium or titanium compound, calcining the composition thus obtained, thereafter impregnating the carrier with a cobalt compound-containing solution and calcining and reducing the composition thus obtained. Catalysts so prepared and containing 5-40 pbw of cobalt and 2-150 pbw of zirconium or titanium per 100 pbw of silica, are used in the preparation of hydrocarbons from a H2/CO mixture.
Patent ZA-848837-B (ZA)
Title: Radiator
Inventor: KEYZER WILLEM G
IPC: F28F9/02
Filed: 1984-11-13
Abstract: @ A radiator comprising a pipe block having channels for passing a fluid to be cooled with the aid of air flowing around the channels and with fluid collecting casings arranged near the ends ofthe pipe block, in which the pipe block or the water casing has an at least substantially U-section continuous groove and the water casing or the pipe block respectively is provided with a continuous fixing rim fitting in the U-section groove with the interposition of a resilient gasket, whilst a limb bounding the U-section groove has holes for receiving guard members, with the aid of which the pipe block and the water casing can be fastened to one another, a guard member being formed by a strip-shaped part and fingers adjoining the strip-shaped part and being transverse of the strip-shaped part, said fingers being passed through the holes in the limb bounding the U-section groove and engaging the fixing rim.
Patent ZA-849219-B (ZA)
Title: Powdered nonionic-based detergent compositions containing magnesium sulphate
Inventor: LAMBERTI VINCENT
IPC: C11D3/37
Filed: 1984-11-26
Abstract: @ The bleeding out during product storage of nonionic detergent active compounds from powdered detergent compositions containing such surfactants is effectively arrested and retarded with the use of magnesium sulphate heptahydrate as a uniformly distributed and intimately mixed ingredient of such detergent compositions.Advantageously, the magnesium sulphate is mixed with the nonionic detergent-active compound in anhydrous form and hydrated to its heptahydrate form thereafter. A mixture of magnesium sulphate heptahydrate together with polyvinyl alcohol when uniformly distributed within a detergent composition is also effective in arresting and retarding nonionic bleeding.
Patent ZA-853113-B (ZA)
Title: Triazolopyrimidine derivatives
Inventor: ISODA SUMIRO
IPC: C07D277/40
Filed: 1985-04-25
Abstract: Novel triazolopyrimidine compounds represented by the formula (I) and physiologically acceptable salts thereof are disclosed. These compounds have an excellent antial- lergic activity in oral administration and are useful for treatment and prophylaxis of allergic diseases such as bronchial asthma, allergic gastro-intestinal disorders, allergic rhinitis, hay fever, urticaria and the like.
Patent ZA-857628-B (ZA)
Title: Process for the preparation of polyketones
Inventor: DRENT EIT
IPC: C08G67/02
Filed: 1985-10-03
Abstract: Process for the preparation of polyketones by polymerization of a mixture of CO and an alkenically unsaturated hydrocarbon in the presence of a Group-VIII-metal catalyst containing ligands, wherein hydrocarbon groups occur which are bound to an element from Group V a, characterized in that the catalyst used is a complex compound obtained by reaction of a palladium, cobalt or nickel compound, an anion of a carboxylic acid with a pKa lower than 2, and a bidentate liqand of the general formula R<1>R<2>-M-R-M-R<3>R<4>, wherein M represents phosphorus, arsenic or antimony, R<1>, R<2>, R<3> and R<4> are similar or dissimilar hydrocarbon groups, R is divalent organic bridging group not causing steric hindrance.
Patent ZA-859676-B (ZA)
Title: Covalently-modified bacterial poly-saccharides,stable covalent conjugates of such polysaccharides and immunogenic proteins,and methods of preparing such polysaccharides and conjugates
Inventor: MARBURG STEPHEN
IPC: G01N33/569
Filed: 1985-12-19
Abstract: Covalently-modified neutral bacterial polysaccharides; covalent conjugates of such polysaccharides linked by a bigeneric spacer, with immunogenic bacterial membrane or other proteins, which conjugates are useful components of bacterial vaccines; and methods of preparing such polysaccharides and conjugates.
Patent ZA-872111-B (ZA)
Title: Roof structure
Inventor: FRANTL ERICH
IPC: E04B7/14
Filed: 1987-03-23
Abstract: To prevent the vibrations caused by wind in suspended-roof supporting frameworks, the suspended-roof supporting framework has main chains composed of bar-shaped main links of relatively small cross section. The ends of these main links are connected to one another at joint centers, and the ends of the main chains are fastened to a stationary perimeter structure. The joint centers of adjacent main chains are connected by means of supplemental links of larger cross section. The supplemental links are larger in cross section than the main links, so they form supplemental chains which are heavier than the main chains. The supplemental chains extend obliquely relative to the main chains, and their ends are fastened to the perimeter structure.
Patent ZA-881540-B (ZA)
Title: Use of metformin in the preparation of medicines
IPC: A61P7/06
Filed: 1988-03-03
Abstract: The invention relates to the use of metformin and its salts in the preparation of medicaments. This derivative is used in the preparation of medicaments manifesting anti-ischaemic and antianoxic properties. It is also employed in the preparation of medicaments intended for the treatment or regression of neovascularisation.
Patent ZA-902971-B (ZA)
Title: Hydroxyl group-containing binder,a process for its preparation,and its use
Inventor: BEDERKE KLAUS
IPC: C09D151/00
Filed: 1990-04-19
Abstract: 1. A hydroxyl-containing binder in the form of a non-aqueous dispersion. 2.1. Previous binders in the form of dispersions were difficult to stabilise. The novel non-aqueous binder dispersion has improved stability toward solvents and can be prepared reliably and economically. 2.2. A non-aqueous, hydroxyl-containing dispersion is described which is suitable as a binder and contains, in addition to organic solvents A) 15-85% by weight of film-forming, dissolved hydroxyl- and carboxyl-containing polyester-(meth)acrylic copolymers or mixtures thereof, it being possible for up to half of the molecules thereof to be esterified by a molecule of maleic acid, and B) 15-85% by weight of a disperse phase of uncrosslinked (meth)acrylic copolymers having a hydroxyl number of at least 300, obtainable by free-radical polymerisation of  a) 80-100% by weight of hydroxyalkyl (meth)acrylates and  b) 0-20% by weight of other  alpha , beta -monounsaturated monomers,  in the film-forming, dissolved, initially introduced component A). 2.3. Preparation of heat-curable multilayer coatings having a base coat and a clear coat.
Patent ZA-913685-B (ZA)
Title: Disulfide derivatives of mercapto-acylamino acids
Inventor: HASLANGER MARTIN F
IPC: A61K31/19
Filed: 1991-05-15
Abstract: Novel mercaptoacylamino acid disulfide derivatives of formulae (I) and (II), wherein R<1> is lower alkyl, cyclolower alkyl, aryl or heteroaryl; R<2> is hydrogen; lower alkyl; cyclolower alkyl; lower alkyl substituted with hydroxy, lower alkoxy, mercapto, lower alkylthio, aryl, heteroaryl, aralkyloxy or aralkylthio; aryl; or heteroaryl; R<3> is -OR<5> or -NR<5>R<6>; R<4> and R<9> are independently -(CH2)qR<8>; R<5> and R<6> are independently selected from the group consisting of hydrogen, lower alkyl, hydroxy lower alkyl, lower alkoxy lower alkyl and aryl lower alkyl, or R<5> and R<6> together with the nitrogen to which they are attached form a 5-7 membered ring; R<7> is phenyl substituted by 1-3 substituents selected from the group consisting of lower alkyl, lower alkoxy, cycloalkyl, halo, cyano and aminomethyl; R<8> is hydrogen, hydroxy, lower alkoxy, mercapto, lower alkylthio, aryl or heteroaryl; n is 1 or 2; p is 0 or 1; q is 0, 1 or 2; and t is 0 or 1; and the pharmaceutically acceptable salts thereof useful in the treatment of cardiovascular disorders and pain conditions and combinations of mercaptoacylamino acid disulfide derivatives and atrial natriuretic factors or angiotensin converting enzyme inhibitors useful for treating cardiovascular disorders are disclosed.
Patent ZA-918052-B (ZA)
Title: Transmission device,particularly for an automotive vehicle
Inventor: ANTONOV ROUMEN
IPC: F16H61/02
Filed: 1991-10-08
Abstract: The crown wheel (2) of a planetary gear (5) is connected to the input shaft (7) while the planet carrier (4) is connected to the output shaft (12). The sun wheel (1) is locked by means of a free wheel (14) when the clutch (9) is released. The device then operates as a reduction gear. The sun wheel (1) rotates with the crown wheel (2) and the planet carrier (4) when the clutch (9) is engaged. The axial forces (FAP?, FAC?), sustained by the sun wheel (1) and the crown wheel (2) when in gear-reduction mode, and resulting from the helical tooth configuration, tend through the stop (17) to compress a spring (18) and release the clutch (9). When in direct drive and beyond a certain torque, the clutch (9) slips, thereby generating the above-mentioned axial forces which compress the spring and accelerate disengaging. The device operates as a reduction gear until the torque on the shaft (7) is reduced, thereby enabling the spring (18) to re-engage the clutch. For use on the input side of a gear box in order to automatically reduce speed ratios during acceleration, the gear box being itself preferably automatically controlled, especially under the effect of axial forces generated by other planetary gears.
Patent ZA-934150-B (ZA)
Title: Bile acid derivatives process for their preparation and use of these compounds as pharmaceuticals
Inventor: ENHSEN ALFONS
IPC: C07J41/00
Filed: 1993-06-11
Abstract: Bile acid derivatives of the formula I  Z(X-GS)n in which GS, X, Z and n have the stated meanings, and a process for the production of these compounds are described. The compounds have pharmacological activity and can therefore be used as pharmaceuticals, in particular as hypolipidaemic.
Patent ZA-949678-B (ZA)
Title: Improvements in or relating to collection devices
Inventor: HOWELLS PAUL EDWARD
IPC: B65G53/06
Filed: 1994-12-06
Abstract: This invention relates to an apparatus for collecting debris including grass cuttings, vegetation, fallen leaves and other rubbish frequently encountered on gardens, public highways and parklands. In particular, apparatus for collecting debris from a surface (5) including a collection duct (D) having a mouth (CM) for receiving debris and an outlet through which debris is discharged into a receptacle (CB), means for establishing a flow of pressure air along the duct (D) for collecting and conveying entrained debris therealong from the mouth (CM) to the outlet of the collection duct to the receptacle (CB), and a cutting chamber (CC) including a reducing means (RD) disposed within the cutting chamber (CC) for reducing the size of at least a portion of the collected debris to be discharged into the receptacle (CB). <IMAGE>
Patent ZA-951695-B (ZA)
Title: Toothbrush
Inventor: HAIDUK HERBERT
IPC: A46B7/04
Filed: 1995-03-01
Abstract: A bent wire serves to form a loop for assembly receiving a brush head of a toothbrush, the bent wire also forming a pair of shanks which are received in a handle holding the shanks together to close the loop and return the brush head assembly therein. At least one of the shanks has formations indexable in the handle. Between the end portions of the shanks and the loop, coil springs are formed in the wire to allow mobility of the brush head in all directions perpendicular to the longitudinal axis thereof.
Patent GB-2362534-B (GB)
Title: Method and system for communicating between computers
Inventor: NEMIROVSKY EDWARD
IPC: G10L21/10
Filed: 2000-05-19
Granted: 2002-12-31
Abstract: A method for facsimile representation of a sending user at a receiving computer, the method including a) creating a source digital image of the sending user's face at a sending computer, b) identifying in a first database a previously-recorded digital image of the sending user corresponding to the source digital image, c) identifying a facial expression in the source digital image, d) transmitting to the receiving computer an image identifier identifying the previously-recorded digital image and an expression identifier identifying the facial expression, e) retrieving at the receiving computer the facsimile digital image from a second database of previously stored digital images using the image identifier, f) creating a composite facsimile digital image by applying the facial expression to the facsimile digital image, and g) displaying at the receiving computer the composite facsimile digital image. If no match is found in the first or second database, no transmission or retrieval is made. Speech recognition may be included so that a phoneme sequence is transmitted, and lip animation and synchronisation can be added at the receiver. The use of a database of facial images can prevent unauthorised users of the system.
Patent GB-2371346-B (GB)
Title: Improving fluid flow in tubing
Inventor: HOUSTON JOHN GRAEME
IPC: A61F2/06
Filed: 2000-12-14
Granted: 2002-12-04
Abstract: There is disclosed a method for configuring or reconfiguring branches in tubing in which the axes of at least two components of the branched structure are arranged askew.
Patent GB-2364060-B (GB)
Title: Method for producing ethylene-vinyl acetate copolymer and saponified product thereof
Inventor: KAWAHARA TAKAHARU
IPC: C08F210/02
Filed: 2001-06-29
Granted: 2004-12-08
Abstract: The present invention provides methods for producing an ethylene-vinyl acetate copolymer and a saponified product thereof that can inhibit visible imperfections (particularly discoloration) at the time of molding by improving the process for recovering vinyl acetate. When the alcohol-based solvent to be blown in when recovering vinyl acetate is deoxidized so that its oxygen concentration becomes not more than 60 ppm, discoloration of a molded product of the above saponified product due to oxygen can be inhibited. <IMAGE>
Patent GB-2382269-B (GB)
Title: Microcell deployment strategies in WCDMA networks
Inventor: HEPSAYDIR EROL
IPC: H04W36/04
Filed: 2001-11-16
Granted: 2005-11-16
Abstract: A WCDMA network using microcells and macrocells in which at least one frequency channel (Frequency 1) is shared by a macrocell and a microcell within the macrocell: while at least one frequency channel (Frequency 2 or 3) of the macrocell or of the microcell is unshared. The shared frequency is allocated to calls whenever possible leaving an unshared frequency for use only if the shared frequency has insufficient capacity. <IMAGE>
Patent GB-2377842-B (GB)
Title: Automated linear image reconstruction
Inventor: CAHILL MARK DAVID
IPC: G06T5/10
Filed: 2002-05-20
Granted: 2005-07-06
Abstract: A process of correcting a blurred image of a scene involves dividing the discrete Fourier transform coefficients of that scene by the discrete Fourier transformed coefficients of two point spread functions(kernels). The results are then inverse transformed and the estimated likely to be the sharpest taken as the true image.
Patent GB-2397502-B (GB)
Title: Cartridge for the preparation of beverages
Inventor: HALLIDAY ANDREW MICHAEL
IPC: B65D85/804
Filed: 2003-01-24
Granted: 2005-06-29
Abstract: A cartridge (1) containing one or more beverage ingredients (200) and being formed from substantially air- and water-impermeable materials, the cartridge comprising an inlet (121) for the introduction of an aqueous medium into the cartridge and an outlet (122) for discharge of a beverage produced from the one or more beverage ingredients, wherein the cartridge comprises an outer member (2) and an inner member (3) conjoined on assembly with the outer member, characterised by the inner member comprising a discharge spout (43) defining the outlet of the cartridge. <IMAGE>
Patent GB-2405067-B (GB)
Title: Blending a digital image cut from a source image into a target image
Inventor: WATSON ALISTAIR IMESON
IPC: G06T5/00
Filed: 2003-08-01
Granted: 2008-03-12
Abstract: Method for blending a foreground object of a first image into a second image in which the transition boundary region between the foreground object and the background comprises a linear color transition based on the colors of the foreground object and the background, respectively.
Patent GB-2400777-B (GB)
Title: Communications bridge between a vehicle information network and a remote system
Inventor: KNIGHT ALEXANDER N
IPC: H04L29/08
Filed: 2003-02-10
Granted: 2006-04-05
Abstract: A communications bridge between a communications network carried by a motor vehicle and configured for communications according to a first protocol and a remote system configured for communications according to a second protocol, includes a first interface configured for coupling to the communications network, a second interface configured for coupling to the remote system, and a digital signal processor (DSP) configured to process multiple operations per instruction cycle. The DSP receives information from the communications network via the first interface, converts this information to the second protocol and transmits the information converted to the second protocol to the remote system via the second interface. The DSP further receives information from the remote system via the second interface, converts this information to the first protocol and transmits the information converted to the first protocol to the communications network via the first interface.
Patent GB-2421560-B (GB)
Title: Gas Pressure Regulator
Inventor: CARNALL MARTIN
IPC: F16K17/04
Filed: 2005-12-20
Granted: 2009-07-22
Abstract: A gas pressure regulator of the kind in which a valve member 12 is spring biased to the valve-open position and is moved to the valve-closed position when upstream pressure at an outlet 19 overcomes the spring 17 is arranged such that gas pressure at an inlet end of the valve member 12 does not influence it in the valve-opening direction. In the embodiment of Figures 3 and 4 a bottom end of the valve member 12 receives a piston-like plug 21A. Openings 30 in the wall of the valve member are occluded when the valve is closed. In the open position of the valve member 12 pressure is equal all round each opening 30. In another embodiment of the invention (Figures 5 and 5A) a spool 31 is provided having one enlarged end 32 within the valve member and another 33 outside it. Pressure on the combined surfaces of the end 32 and the end 20 of the valve member is equal to the pressure on the end 33 of the spool.
Patent GB-2458420-B (GB)
Title: Electrochemical detection of a metal-labelled analyte
Inventor: PORTER ROBERT ANDREW
IPC: G01N33/543
Filed: 2008-11-25
Granted: 2009-10-28
Abstract: A method for determining the presence or amount of a metal-labelled analyte (12) in a sample is described. The method comprises the steps of adding a release agent (20) to the metal labelled analyte (12) to release the metal label (18) from the analyte (12), the release agent (20) forming a charged stable species (22) with the metal label (18), applying a potential to bring the charged stable species (22) to an electrode (22), dissolving the charged stable species (22) under a positive potential to form metal ions (26), and carrying out a quantitative determination procedure such as anodic stripping voltammetry to determine the presence or amount of the metal-labelled analyte (12).
Patent GB-2006792-B (GB)
Title: No-mix orthodontic adhesive
IPC: C08F2/44
Filed: 1978-10-19
Granted: 1982-05-12
Abstract: An orthodontic adhesive for bonding a metal or plastic bracket to tooth enamel comprises two curable components designed to be coated in separate layers on the surfaces to be joined and cured upon contact of the layers. The first component comprises a curable liquid resin having a viscosity of 500-750,000 cps. The second component comprises a curable liquid resin and organic or inorganic filler having a viscosity of at least 1,000,000 cps. One component also contains a polymerization catalyst and the other component contains a polymerization accelerator. The curable liquid resin consists of monomers such as mono-, di- and poly-methacrylate or acrylate ester monomers and mixture thereof.
Patent GB-2117564-B (GB)
Title: Mounting one integrated circuit upon another
Inventor: TALBOT WILLIAM JOHN
IPC: H01L25/18
Filed: 1982-03-26
Granted: 1985-11-06
Abstract: In an integrated circuit assembly a memory chip 3 is mounted on a logic chip 1. A first set of contact pads 2 on the logic chip 1 are electrically joined to corresponding contact pads 4 on the memory chip 3 to secure the chips to one another in face-to-face relationship and to provide interconnections between the chips. A further set of contact pads 5 on the logic chip 1 are provided for external connections to the integrated circuit assembly. The assembly may be contained in a protective package 7, 8 or may be mounted on an etched metal film using a tape assisted bonding technique. <IMAGE>