baber/WOPTO huggingface dataset:
Patent GB-864675-A (GB)
Title: Improvements in or relating to addition polymerisation processes
Inventor: SMITH ROBERT ROY
IPC: C08F279/02
Filed: 1957-12-04
Abstract: In the mass polymerization of vinyl aromatic or alkyl monomers by heating in a final stage at between 150 DEG  and 250 DEG C., a diphenyl ethane of general formula:- <FORM:0864675/IV (a)/1> in which R1 to R4 represent hydrogen, or an alkyl group at least two of R1 to R4 being alkyl groups, and in which the benzene radicals A and B are unsubstituted or substituted with alkyl or alkoxy groups, is used as a catalyst. Polymers of styrene and styrene derivatives and copolymers thereof with maleic anhydride, acenaphthylene and acrylonitrile, and allyl esters, e.g. diallyl phthalate, alone or with vinyl chloride are specified. (a a :b b -tetramethyl)-,(a -methyl-a -ethyl: b -methyl-b -ethyl)- and a a :b b -tetraethyl diphenyl ethanes, and (a :b -diisopropyl)-a -b -diphenyl ethane are given as examples of the catalyst.  In the initial stages catalysts such as benzoyl or t-butyl peroxides may be present and the process may be batch or continuous in a tower.  Natural or synthetic rubber e.g. butadiene-styrene rubber, plasticizers, and solvents may also be present.
Patent GB-1432689-A (GB)
Title: Hot metl adhesivee composition
IPC: C08L33/02
Filed: 1973-08-10
Abstract: 1432689 Adhesives for laminating EASTMAN KODAK CO 10 Aug 1973 [15 Aug 1972] 37906/73 Heading B5N [Also in Division C3] Laminates are prepared by using an adhesive composition comprising (a) 50-98%, based on the weight of the composition, of a copolyester of (i) a glycol component at least 80 mole per cent of which is 1,4-butanediol and (ii) an acid component at least 48 mole per cent of which is terephthalic acid and 5-40 mole per cent of which is a dimer acid, and (b) 2-50%, based on the weight of the composition, of a homo- or co-polymer of which at least 50% by weight of its units are derived from a monomer of the formula in which R is hydrogen or a C 1-4  alkyl group and R 1  is hydrogen, chlorine, phenyl or a C 1-4  alkyl group. Suitable co-monomers for copolymeric polymers (b) are listed. The adhesive may include additives, particularly fillers, pigments, viscosity reducing materials and glass cloth. Specified substrates are steel, iron, aluminium, chromium, copper, brass, bronze, nickel, zinc, titanium, tin, wood, glass, ceramic materials, paper, cardboard, fabrics and substrates coated with polyepoxide, epoxy-phenolic resin, melamine resin, phenolic resin, alkyd resin, vinyl resin or acrylic resin. The adhesive may be applied in molten form by spatula or by extrusion or as a film. The sheets are then clamped together and heated in a forced-air oven at 20- 50 C.
Patent GB-1474815-A (GB)
Title: Plasticized thermoplastic semicrystalline block and graft copolymers
IPC: C08L101/00
Filed: 1974-08-30
Abstract: 1474815 Selectively plasticized segmented polymers EXXON RESEARCH & ENG CO 30 Aug 1974 [28 Sept 1973] 38040/74 Headings C3P and C3R Copolymer compositions comprise (a) a block copolymer of formula ABA, ABABA or xB(AB) n yA or a graft polymer with a backbone B and a plurality of A side-chains, where n is an integer of at least 2, x and y are 0 or 1 and A and B are mutually incompatible thermoplastic blocks, where A is an at least partially crystalline block and B is an amorphous block, and (b) a plasticizer having a solubility parameter within 1À20 units of that of block B. Typical polymer blocks A are polyolefins, polycaprolactam, polyethylene terephthalate, poly-(2,3- dimethylenebicyclo - 2 - 2,2 - octane), polyethylene sulphide and polythiacyclobutane. Typical blocks B and (i) polyvinyl aromatics, (ii) polyvinyl acetate and (iii) polyphenyl hydroxy-ether of bisphenol A. Suitable plasticizers (for the B blocks) are phthalates, phosphates, low molecular weight polyesters, polyolefins and polydiolefins and paraffin oils. Examples refer to the plasticizing with various of these conventional types of plasticizers of polyethylene-b-polystyrene- or t-butylstyrene-bpolyethylene (obtained by selective hydrogenation of 1,4 - polybutadiene - polystyrene - or poly - t - butylstyrene - 1,4 - polybutadiene) or of a multi-block copolymer of polystyrene and poly-(piperazine sebacamide). A block copolymer is prepared in Example 7 by reacting polystyrene glycol with toluene diisocyanate and then adding poly(piperazine sebacamide) to yield the multi-block copolymer.
Patent GB-1055060-A (GB)
Title: Process for producing alpha hydroxy-glutaronitrile and its alkyl-substitute derivatives
Filed: 1964-09-17
Abstract: Compounds of the general formula <FORM:1055060/C2/1> wherein R1, R2 and R3 each represent hydrogen atoms or C1-6 alkyl radicals, are prepared by reacting a compound of the formula <FORM:1055060/C2/2> with hydrogen cyanide at a temperature above 30 DEG  C.  The starting materials of Formula II above may be prepared by reacting a compound of the general formula <FORM:1055060/C2/3> with hydrogen cyanide and the subsequent conversion to compounds of Formula I may be conducted with or without isolation of the compounds of Formula III.  In Example 1, a -hydroxygluteronitrile is hydrolysed with hydrochloric acid to give g -butyrolactone carboxylic acid.
Patent GB-1242965-A (GB)
Title: Resilient bushing
IPC: F16F13/00
Filed: 1969-07-30
Abstract: 1,242,965. Liquid damped resilient bushings. GENERAL TIRE & RUBBER CO. 30 July, 1969 [26 Aug., 1968], No. 38313/69. Heading F2S. [Also in Division A4] Distortion of a resilient bushing 2 is damped by two or more pockets 10a, 10b filled with a liquid (e.g. polyalkylene glycols, silicon oil, various polymers) and interconnected by a passageway 32, which is tapered (Fig. 6, not shown) or provided with a one-way flapper valve (Fig. 7, not shown). The elastomeric insert is moulded with recesses 30a, 30b which become pockets when the insert is radially compressed (or bonded) between the inner and outer sleeves 4, 6 of the bushing. Then the liquid is inserted using an apparatus depicted in Fig. 8 (not shown). Fig. 5 (not shown) depicts a circumferential passageway (110) connecting pockets (108a, 108b). The bushing (100) has an outer sleeve (106) of elliptical crosssection, with an end flange (112).
Patent GB-851650-A (GB)
Title: Improvements in or relating to liquid-cooled internal combustion engines
IPC: F02F1/12
Filed: 1958-11-27
Abstract: 851,650. Preventing corrosion. MASCHINENFABRIK AUGSBURG-NURNBERG A. G. Nov. 27, 1958 [Feb. 25, 1958], No. 38316/58. Class 123(1) [Also in Group XXVII] Resiliently mounted plates 3 form -shields preventing cavitation of the cylinder jacket wall 2 of a liquid cooled internal combustion engine. The plates are mounted on rubber pads 4.
Patent GB-384071-A (GB)
IPC: E03C1/04
Abstract: 384,071. Water &c. supply fittings. WINN & CO., Ltd., C., MOUSLEY, A., and MOUSLEY, N. K., 140, Granville Street, Birmingham. Nov. 25, 1931, No. 32654. [Class 26.] A fitting for supplying a film of water or other liquid, applicable to wash-basins, causes the liquid to pass from a tubular body a into an annular space j open at one end, the discharge taking place from the edge of an outwardly directed portion e of the body. A shoulder k may be provided, and the liquid film may be divided into segmental sections by the provision of longitudinal ribs preferably on the body member. The fitting may be used in the position shown, inverted, horizontal, or inclined.
Patent GB-1437417-A (GB)
Title: Method and apparatus for charging with deuterium a feed flow  consisting solely or partly ofhydrogen
IPC: B01D59/32
Filed: 1973-08-14
Abstract: 1437417 Isotope exchange (D 2  : H 2 ) SULZER BROS Ltd 14 Aug 1973 [16 Aug 1972] 38419/73 Heading C1A A feed flow consisting wholly or partially of hydrogen is charged with deuterium using water of natural deuterium concentration as the deuterium source by transferring deuterium from water to steam in a mixture of steam and hydrogen supplied to a plurality of distillation columns arranged in series in respect of increasing deuterium concentration, the mixture leaving each distillation column being superheated and introduced into a separating stage in which deuterium is transferred from the steam to hydrogen in the mixture and the mixture is cooled by heat exchange with the mixture being supplied to the separating stage: downstream of the final column the steam is condensed out of the mixture and the enriched hydrogen from the mixture is fed to an enrichment process in which the hydrogen is deuteriumdepleted by isotope exchange with a substantially non-aqueous liquid medium containing a hydrogen atom exchangeable with deuterium from gaseous hydrogen, and a steam-hydrogen mixture produced from deuterium-depleted hydrogen from the enrichment process and condensate condensed out downstream of the final column is again supplied to the upstream distillation column. The temperature of the mixture supplied to each separating stage may be between 350‹ and 650‹ C. The non-aqueous liquid medium may be methylamine. Apparatus for carrying out the process is described.
Patent GB-891980-A (GB)
Title: Sound-reproducing apparatus
IPC: G11B5/00
Filed: 1960-11-09
Abstract: 891,980. Driving sound film, tape or wire. VOCKENHUBER, K. Nov. 9, 1960 [Nov. 10, 1959], No. 38446/60. Class 40 (2). In a sound record apparatus the magnet 1 of the loud-speaker is arranged for use as a flywheel in the record drive mechanism, and can be used to maintain even speed of a capstan 2 driving a tape record 14 or a gramophone turntable.
Patent GB-929673-A (GB)
Title: Apparatus for pivoted bogies of rail vehicles
IPC: B61F5/48
Filed: 1960-11-10
Abstract: 929,673. Magnetic tests. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Nov. 10, 1960 [Nov. 11, 1959; Sept. 3, 1960], No. 38596/60. Class 37. [Also in Group XXXI] A Hall generator 31, Fig. 3, mounted on the bogie 1 of a train responds to a permanent magnet 32 adjacent the rails to control bellows 21, 22 which align the bogies with the curve.
Patent GB-347239-A (GB)
Title: Process for the treatment of zinc ore
IPC: C22B19/00
Filed: 1929-12-17
Abstract: <PICT:0347239/III/1> <PICT:0347239/III/2> <PICT:0347239/III/3> The production of zinc oxide from zinc ores is effected by introducing into a continuous electrically heated shaft furnace a granular free-flowing charge, preferably preheated, comprising granular sintered zinc ore and granular carbonaceous material and heating the charge by utilizing its resistance to the passage of an electric current to a temperature sufficient to distil the zinc but insufficient to fuse or slag the residue and preferably below the distillation point of the sulphide in the ore, e.g. about 1100 DEG C.  The sintering of the ore may be carried out in conjunction with a desulphurizing process.  The furnace used may comprise a series of independently supported <PICT:0347239/III/4> sections A .. D, forming the reducing chamber, a preheater section F and a discharge section E.  The sections are supported from columns 18 by means of brackets 19 and adjustable insulated depending rods 20 carrying skew-rings 25 which support annular rings 26 of brickwork on which brick columns 27 and annular rings 28 rest.  A shell or casing 29 is provided in sections B, C, D and F, the space between the shell 29 and the brickwork 27 being packed with powdered chrome ore.  In the annular space between the rings 28, 26 are luted either condensers 34x, Fig. 8, if metal is required, or, if oxide is required, tuyeres 32, Fig. 4, leading the zinc vapour to conduits 33 into which air is introduced to oxidize the vapour.  Three electrodes G, H, I, Fig. 9, preferably rectangular or square in cross section, spaced about 120 DEG  apart, extend through the section A of the furnace and corresponding electrodes displaced through 180 DEG , G<1>, H<1>, I<1>, extend through the section D, the current passing diagonally through the charge from each upper electrode to the corresponding lower electrode.  Either alternating or direct current may be used. The preheater section F comprises a tube 10 heated by combustion products from a burner which pass upward in a tortuous path through a flue 11 with baffles 12.  The discharge section E, which may be cylindrical or tapered, is provided beneath its lower end with a rotating table 36 for removal of the residue and to render the furnace readily accessible a lift 34, mounted on a circular track extending round the furnace, is provided.
Patent GB-989074-A (GB)
Title: Apparatus for pumping a liquid and for injecting air or some other gas into it
Inventor: ZIETARSKI SLAWOMIR MICHAL
IPC: A23G9/20
Filed: 1961-10-27
Abstract: 989,074. Aerating ice cream. A. JOHNSON & CO. (LONDON) Ltd. Oct. 22, 1962 [Oct. 27, 1961], No. 38631/61. Heading B1C. [Also in Division F1] In a pump for supplying an aerated ice cream mix a piston 2 draws the mix from an inlet 3, and during the suction stroke air under pressure is injected into the mix via an inlet 7 for a variable period determined by a valve 13 coupled by mechanical, electrical, hydraulic or pneumatic means to the crankshaft operating piston 2. The air line also incorporates a pressure control valve 12, filter 11, shut-off valves 10 and 14, pressure gauges 15 and 16 and a check valve 8. Inlet and delivery valves 4 and 6 may be ball or poppet valves. A number of pumps may be fed by a common air supply.
Patent GB-1064390-A (GB)
Title: Extrusion and injection moulding of polyolefines
Inventor: BELLOTTE ALBERT JOHN
IPC: B29C48/08
Filed: 1964-09-23
Abstract: 1,064,390. Extrusion/injection moulding; extrusion nozzles. BRITISH VISQUEEN Ltd. Aug. 20, 1965 [Sept. 23, 1964], No. 38795/64. Headings B5A and B5B. The die orifice of an extrusion moulding machine, or the injection nozzle of an injection moulding machine, used in the moulding of polyolefinic material, in particular polyethylene, are isolated from the atmosphere at the beginning or end of a " shut-down " period by maintaining a non-oxidizing gas, e.g. nitrogen, therearound. In particular such a gas is utilized until the die or nozzle has cooled to at least 100 C. and, on starting the moulding operation, is used before the die or nozzle reaches a temperature of 100 C. A cover may be placed over the die or nozzle to act as a gas chamber and at the beginning of a " shut-down " period external polymeric residue is removed prior to introduction of the gas. The gas may be fed continuously, or if the chamber is sealable, at intervals during the cooling period. With extrusion, the cover may be retained at the end of a " shutdown " period until the extrudate impinges upon and lifts the cover. With injection moulding, the chamber may be formed by the closed injection mould. The invention particularly relates to apparatus for the extrusion of flat or tubular films.
Patent GB-1494764-A (GB)
Title: Printers
IPC: H04N1/29
Filed: 1975-09-25
Abstract: 1494764 Selective printing OKI ELECTRIC INDUSTRY CO Ltd 25 Sept 1975 [30 Oct 1974] 39249/75 Heading B6F In a high speed printer in which an ink mist from a tank 122 is bombarded with ions produced by electrodes, an electronegative gas containing no chloride component is fed from a tank 120 to an aperture plate 103 through which the ions pass. The gas prevents arc discharge.
Patent GB-1008676-A (GB)
Title: Improvements in and relating to the manufacture of titanium dioxide
Inventor: RICHARDSON JAMES THOMSON
IPC: C22B34/12
Filed: 1960-11-17
Abstract: Titanium dioxide is manufactured by calcining rutile, leucoxene and/or a concentrate prepared by reacting a titanium dioxide containing material with hydrochloric acid or hydrogen chloride gas, in admixture with magnesium, calcium and/or zinc oxides, the molar ratio of the oxides to the titanium oxide content of the ores being at least 2:1 to form the respective titanates (alternatively, an aqueous suspension of the titanium concentrate or leucoxene is treated with calcium oxide at such temperature and pressure that calcium titanate is formed) the titanates are then treated with hydrochloric acid to precipitate titanium dioxide which is separated, the remaining solution is neutralized with metal oxide(s) which is (are) of the same metal(s) as the titanate(s) and is then thermally decomposed to give steam, hydrogen chloride and the metal oxides, the major part of the hydrogen chloride is recycled to treat a further quantity of titanate(s) and/or for preparing a further quantity of the concentrate.  The metal oxides may be formed in situ by using a compound that decomposes during calcination, e.g. the carbonate of magnesium, calcium or zinc.  Before calcination the mixture of titanium substances and metal oxides may also be not more than 2% of hydrochloric acid, magnesium chloride, zinc chloride or calcium chloride and 5-10% of sodium chloride.  If the titanium containing substance contains ferric iron, not more than 10% of a reducing agent, e.g. carbon, may be incorporated with the mixture before calcination. At least a part of the metal oxides formed by the thermal decomposition of the neutralized solution may be used to neutralize further solution and/or is used for the calcination. The precipitated titanium oxide may be calcined.  A rutile retarding agent, e.g. phosphoric acid, calcium phosphate or sodium phosphate, a rutile sealing agent, or a rutile promoting agent, e.g. zinc oxide, may be incorporated either with the solution obtained from the treatment of the titanates with hydrochloric acid before that solution is boiled, or with the precipitated titanium dioxide prior to calcination.  Potassium sulphate may be incorporated with the precipitated titanium dioxide before calcination to serve as a texture modifier.
Patent GB-1194443-A (GB)
Title: Improvements in or relating to Mold Making Machines
Inventor: MASI ANTHONY STEPHEN
IPC: B22C7/04
Filed: 1968-08-19
Abstract: 1,194,443. Moulding machines. A. S. MASI. 19 Aug., 1968, No. 39611/68. Heading B3F. In a mould making machine of the type having an invertible matchplate 10 sandwiched between the peripheral wall 36 of a pattern well 12 and a mould box member 22, the matchplate is supported by means acting between the bottom wall 34 of the pattern well 12 and the downwardly facing surface of said matchplate. Said means may comprise rods or pins 48, 50 fixed to and extending from opposite sides of the matchplate 10 so that their free ends engage a table 32 attached to the bottom wall 34 of the pattern well ] 2 in either position of the matchplate. In a modification (Fig. 7), the matchplate is supported by piston members 68 received in cylinder bores 67 in a cylinder block 64. A passage 74 communicates with the cylinders and supplies hydraulic fluid under pressure to each of the pistons simultaneously.
Patent GB-1002852-A (GB)
Title: Process for polymerising ethylenically unsaturated compounds and catalyst complex therefor
IPC: C08F4/12
Filed: 1961-11-07
Abstract: Monomers of the general formula <FORM:1002852/C3/1> where R1, R2, R3 and R4 are the same or different, and are hydrogen atoms, saturated or unsaturated hydrocarbon radicals, halogen atoms, nitrile groups, carboxylic acid radicals, carboxy esters or other acyl containing groups and halogen-substituted hydrocarbon radicals, are polymerized using a complex boron compound as catalyst, the complex comprising a co-ordination linkage between as first component (a) a boron hydride, a boron alkyl hydride or a boron aryl hydride and as second component (b) a compound containing an element of Group V or VI of the Mendele<\>eeff Periodic Table which is capable of donating electrons to the boron atom to provide the co-ordination complex compound.  The complex has the formula B#cRg H#znD, where R is a hydrogen atom or an alkyl or aryl group and D is a molecule of a compound of electron-donor character, #c is an integer equal to or greater than 1 and 3#c=y+z and n  is equal to or greater than 1/2 #c. Complexes mentioned are B2H6.C5H5N; BH3.(CH3)3N; B2H6.2NH3; B2H6.2PH3, B2H6.Se(CH3)2; B2H6.2NH3; B2H6.2PH3, B2H6.Se(CH3)2; B2H6.S-(CH3)2; B2H6.C4H4O; B2H6.2(C2H5)2O; B2H6 wit triethylamine, tetrahydrofuran, acetone, dimethyl ether or arsines and B2(CH3)2H4 with ammonia.  The monomers mentioned are vinylchloride, styrene, methylmethacrylate, acrylonitrile and ethylene.
Patent GB-1127848-A (GB)
Title: Improvements in or relating to trolleys
IPC: B25H3/02
Filed: 1967-09-01
Abstract: 1,127,848. Hand trucks. HAZET-WERK HERMANN ZERVER. 1 Sept., 1967 [6 Sept., 1966], No. 39992/67. Heading B7B. A hand truck has a wheeled base 1 in which four columns 5, 6 are releasably secured by operation of screwed rods rotated by the hand wheels 19. A cover 4 and an intermediate shelf 3 are slidable on the columns 5, 6, the cover 4 being releasably secured to the top of the columns when the shelf 3 is to be used.
Patent GB-857506-A (GB)
Title: Improvements in or relating to magnetic core trigger devices
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03M9/00
Filed: 1958-12-15
Abstract: 857,506. Magnetic information-storage apparatus. STANDARD TELEPHONES & CABLES Ltd. Dec. 15, 1958, No. 40289/58. Class 40 (9). [Also in Groups XXXV and XL (c)] A magnetic trigger device for use in a coding system comprises a rectangular box of low retentivity magnetic material at whose ends short pole pieces 14, 15 are formed. On these poles a signal winding 17 and a bias winding 18, respectively, are wound. Between the polepieces are a number of small high-retentivity toroidal cores 16 through all of which a wire connected to a trigger source 6 is passed, and through some of which a wire connected to output load 7 is passed. Additional output windings (not shown) are included for the remaining digits of the code. Polepieces 15, bias winding 18 and source 11 may be replaced by a permanent magnet. Specification 806,397 is referred to.
Patent GB-1028208-A (GB)
Title: Connector boards
IPC: H01R31/00
Filed: 1963-10-14
Abstract: 1,028,208. Adaptors. R. F. OXLEY. Dec. 9, 1964 [Oct. 14, 1963], No. 40492/63. Heading H2E. A board 1 is provided with at least one connector fitting 3 comprising a socket member 16 which is a snap-fit within an insulating bush 4 which extends at 8 and 9 beyond the ends of the socket 16. In the embodiment described, the ends of the socket are slit at 21 to make them more resilient and the portion 20 of the socket is squeezed into tapered form to fit a conicallyshaped pin 30.
Patent GB-990031-A (GB)
Title: Contact lens treating solution
IPC: A61L12/14
Filed: 1961-11-13
Abstract: A 0.3 to 0.6% alkali metal halide salt-water solution of methyl cellulose is buffered with phosphates to pH 7.0 to 7.8 polysodium tetracetate and sodium ethyl mercurii thiosalicylate may be added as biocides.
Patent GB-1276192-A (GB)
Title: Brake lining wear detector
IPC: F16D66/02
Filed: 1969-08-14
Abstract: 1276192 Brake-lining wear detectors; spottype disc brakes SOC ANON FRANCAISE DU FERODO 14 Aug 1969 [19 Aug 1968] 40717/69 Heading F2E A stationary bearer, for example the fixed cylinder casing, of a spot-type disc brake is provided with a wear detector device having at least a portion in the path of movement of a braking pad so that the device is caused to operate on pre-determined wear of the pad. In Figs. 1 and 3 a varnished deformable metal strip 25 is secured at 27 to the fixed cylinder casing 16, and after a definite degree of wear of the friction linings 12A, 13A, the free end 29 is entrained by the plate 12B of pad 12 and the extremity 30 comes into contact with the moving disc 10. The varnish coating of the metal strip is thereupon worn away by the disc, so a circuit including disc 10 is closed to energize a warning device. In Figs. 5 to 7 (not shown), the free end 29, 30, of the strip is made narrow and accommodated in the upper end of a groove formed in the friction lining of one of the pads primarily for egress of dust and/or moisture. In Figs. 8 to 10 (not shown) the free end of the strip is laterally extended to encompass the full width of the braking pad, and has a downturned portion such as 29, 30 at each end of the lateral extension.