baber/WOPTO huggingface dataset:
Patent GB-990362-A (GB)
Title: Method of modifying the properties of polypropylene and the resulting products
IPC: C08F8/50
Filed: 1961-05-03
Abstract: Polypropylene is modified by heating at a temperature of at least 275 DEG  C. in admixture with a polymer of a compound containing a CH2=C<group, the temperature and time of heating being sufficient to degrade the polypropylene and effect reaction with the polymer. The preferred polymers are those of hexene, styrene, methyl methacrylate, 3-methylbutene, butene/ethylene, isobutylene, vinyl acetate, vinyl ethers, diethyl ethylene malonate, diethyl itaconate, butyl acrylate, and vinyl acetate/vinyl benzoate, but many others are listed. The products may be waxy and find application as fibre, film, floor polish and heat sealable packaging &c.ALSO:Paper, e.g. kraft paper, is coated with a modified polypropylene obtained by heating in admixture with a polymer of a CH2=C< compound, examples of which are given, to a temperature of at least 275  DEG C., the heating being sufficient to degrade the polypropylene and effect reaction with the polymer. The polypropylene is applied as a melt and the coating is quenched rapidly with a chromium plated calender roll.
Patent GB-857650-A (GB)
Title: Thiocarbonyl fluorides and methods for their preparation
IPC: C01B31/26
Filed: 1958-06-12
Abstract: Thiocarbonyl fluoride, CSF2, of 95% purity and thiocarbonylchlorofluoride, CSFCl, are produced by pyrolysing tetrafluoro-1,3-dithietane or monochlorotrifluoro-1,3-dithietane (see Specification 857,651) by passing these polyfluoro-compounds through a nickel or platinum tube, preferably with an He or N2 diluent, at 400-900 DEG C. under any pressure conditions. The tetrafluoro-compound yields CSF2 and the monochlorotrifluoro-compound yields a major proportion of CSF2 and a minor proportion of CSFCl and thiophosgene, CSCl2, which may be separated by fractional distillation.
Patent GB-1178905-A (GB)
Title: Mixed Crystals of Glutamine and Inosinic Acid Derivatives
IPC: C07H19/20
Filed: 1967-04-07
Abstract: 1,178,905. Monosodium glutamate and disodium inosinate. KYOWA HAKKO KOGYO K.K. 7 April, 1967 [7 April, 1966], No. 16040/67. Heading C2C. [Also in Division A2] Mixed crystals of monosodium glutamate and disodium inosinate are prepared bymixing:c-o-ntinuously or intermittently a solution containing both monosodium glutamate and disodium inosinate with a solution of monosodium glutamate containing seed crystals thereof, and concentrating the resulting solution. The invention also provides mixed crystals of monosodium glutamate and disodium inosinate, said crystals having a substantially uniform ratio of each component. The concentration of the mixed solution is preferably effected simultaneously with the addition of the solution containing both components, and the mixed crystals formed may be cultured for from 6 to 10 hours before being harvested. The crystals are flavour-enhancing and seasoning agents.
Patent GB-1477416-A (GB)
Title: Process for the production of flame-resistant tubber products with textile polychloroprene base
IPC: C08J7/043
Filed: 1975-04-18
Abstract: 1477416 A flame resistant rubber-textile product TAURUS GUMIIPARI VALLALAT 18 April 1975 [19 April 1974] 16069/75 Heading D1P A process for the production of flameproof rubber product comprises impregnating a textile material with a 9-16% of an aqueous solution of an alkali metal monophosphate salt such as sodium hydroxide phosphate representing a flame resisting substance at preferably 50-60‹C, drying the textile material and preferably stretching it simultaneously to prevent shrinkage, applying an organic solution of a fire-proofing polychloroprene mixture preferably comprising magnesium oxide and the combination of di-benzthiazil-disulphide and tetramethyl thiuroammono sulphide as cross-linking agents, whereby the textile material is cross-linked to the polychloroprene. The textile material is a transport cord. A blend of nitryl-butadiene and PVC may be used in the polychloroprene mixture wherein condensation of the nitryl-butadiene and PVC mixture takes place. The aqueous impregnation the rate of which can be adjusted to between 3-9 m/min, may also include the use of borax, and the subsequent drying can be carried out in any impregnation device used in the rubber industry or in any impregnating unit provided with a drying stage. The application of the flameproof substance can be achieved by spraying. A thin layer of the phosphate salt solution may be applied to the textile surface with the aid of rollers representing a roller stretching process. For impregnating thicker textile materials with the polychloroprene mixture a thinner and two-fold impregnation is used, while for thinner textiles a single impregnation with a concentrated solution can be used.
Patent GB-169004-A (GB)
Title: Improvements in and relating to school slate frames
IPC: B43L1/02
Filed: 1920-06-14
Abstract: 169,004. Chocksee, H. C. June 14, 1920. Slates.-In a school slate of the kind having a frame of elastic material such as rubber or celluloid so as to prevent breakage of the slate and injury to the hand of the user, the frame comprises two parts 1, 5, each recessed as shown to form a groove 3 for the edges of the slate 2 when the parts 1, 5 are secured together by rivets &c. 4.
Patent GB-946419-A (GB)
Title: Improvements relating to automatic batch weighing apparatus
Inventor: PARRISH ERNEST ERIC
IPC: G01G13/00
Filed: 1961-05-04
Abstract: 946,419. Weighing apparatus. W. & T. AVERY Ltd. April 24,1962 [May 4,1961], No. 16131/61. Heading G1W. An automatic feed weigher comprises a fixed frame 5 (Fig. 1) a set of two even armed beams 3 fulcrumed thereon at 4, proportional weights 7 (1/3 magnitude of load) suspended from beams 3, a set of four 3 : 1 ratio second order levers 12 fulcrumed at 14 and supported at their free ends by cross piece 11 dependent from rods 10 attached to the opposite ends of beams 3 from the weights. A weigh hopper 8 is carried at points 18 by the four levers 12 and may be disposed beneath a feed gate 17 of a supply hopper 19. The apparatus may incorporate known mechanism whereby the feed is automatically terminated when beams 3 are in equilibrium. A dashpot 20 and shock absorber 21 may connect the beams to the frame.
Patent GB-218682-A (GB)
Title: Improvements in carburetters for internal combustion engines using heavy fuel
IPC: F02M1/00
Filed: 1924-07-05
Abstract: 218,682. Giorelli, A., and Tinelli, G. July 6, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.- Light or heavy fuel mixture is supplied to the engine from one of two mixing chambers according to the position of the throttle valve. Heavv fuel from a float chamber 8 is discharged through a nozzle 7 located in a choke tube 6 in the air passage 5. The mixture is controlled by a throttle valve 3 into the bore 4 of which, in its nearly closed position, a mixture of light fuel and air is delivered through a conduit 12 in communication with a mixing chamber 11 provided wth air inlet ports and receiving fuel from a float chamber 10. The outlet of the conduit 12 is displaced from the central plane of the throttle valve towards the outlet of the carburettor. A gauze screen 13 on the end of the choke tube facilitates mixing.
Patent GB-666639-A (GB)
Title: Improvements in or relating to automatic yarn winding machines
Inventor: MUSCHAMP HAROLD LIONEL
IPC: B65H67/04
Filed: 1948-06-17
Abstract: 666,639. Winding yarn &c. MUSCHAMP, H. L. June 17, 1949 [June 17, 1948], No. 16279/48. Class 120(ii) In an autormatic yarn &c. winding machine of the kind in which a quill &c. is wound between centres and thereafter removed from the winding station and replaced by an empty tube &c., winding thereon being started automatically by an " automaton," package-gripping means are provided adjacent the winding centres which are moved into engagement with the wound package, while it is held between the centres, the core of the package being then released from the centres so that the gripping means may move the package to a waiting position, the filament leading to the package being held in tension in a predetermined position so that it mav be clamped on the spindle prior to a fresh wind. When a quill has been completed, a measuring device stops the winding and starts an " automaton " which rotates a cam 28 to turn a shaft 19, which, through a quadrant 25 and pionion 18. raises the arm 13 to press the rollers 16, carried by spring arms 15. over the completed quill 17 which rests against the ejector 34. The tailstock 23 is now pushed back by a rod 24 and through a lever 31. moves the rod 19 through a shorter distance. This in turn, moves a sleeve 12 to withdraw the quill axially from the spindle head 10<SP>1</SP>. The cam 28 now lowers the arm 13 moving the quill to a waiting position in which the ejector is about to engage blocks 37 to eject the quill. But while maintained in the waiting position and before ejection, a yarn collecting fork 39 (not shown), is moved over the top of the quill to bring the yarn towards the spindle head where it is in a position to be clamped between elements 10<SP>1</SP>, 10<SP>2</SP> as described in Specification 666,638. After a fresh core has been fed into position, the rod 24 brings the tailstock forwards to move the spindle elements to grip the yarn. A thread severing device now cuts the yarn between the doffed quill and the spindle elements and the fork 39 (not shown), is moved back. The cam 28 now further moves the arm. 13 to eject the doffed quill from its waiting' position into a suitable basket &c.
Patent GB-1399655-A (GB)
Title: Hydrogenation of aromatics
IPC: C10G45/52
Filed: 1972-04-10
Abstract: 1399655 Alkali metal-deficient offretite BRITISH PETROLEUM CO Ltd 13 March 1973 [10 April 1972] 16339/72 Heading Cl [Also in Division C5]  Offretite is made by ageing, at 98‹ C. for 4 days, a mixture of (a) a solution containing sodium aluminate, sodium hydroxide and potassium hydroxide, (b) aqueous colloidal silica, and (c) an aqueous solution of tetramethyl ammonium chloride. The offretite, having a SiO 2 /Al 2 O 3  mole ratio of 8À15 is pelleted, calcined and refluxed with aqueous HCl to reduce its sodium and potassium contents and then exchanged with aqueous tetrammine platinous chloride and calcined. The product, having a SiO 2 /Al 2 O 3  ratio of 11À5 and containing 0À78 wt. per cent Pt is used as a catalyst for hydrorefining kerosine.
Patent GB-564975-A (GB)
Title: Improvements relating to snap-action electric switches
IPC: H01H13/14
Filed: 1943-10-06
Abstract: 564,975. Retractive switches; handactuating devices. MICRO SWITCH CORPORATION. Oct. 6, 1943, No. 16387. Convention date, Dec. 21, 1942. [Class 38 (v)] [Also in Group V] The operating member of a snap - action, leaf - spring type of retractive switch, for example, that described in Specification 419,917, comprises an insulating button 52 moulded about a brass disc 50 riveted to the end of a stainless-steel rod 48, the boundary - surface between the insulation and rod being suitably spaced from the latter and outwardly flared to facilitate removal of surplus insulation by means of a rotating wire brush or cutting tool without risk of damage to the rod and consequent impairment of the setting of the switch. The arrangement also better absorbs impact due to one limb 18 of the spring- fulcrum being engaged by the insulating part 60 before the other. The mould is shown in Fig. 7 with a lip 58 to prevent egress of the moulding resin, and with a cavity to accommodate varying lengths of rod.
Patent GB-793997-A (GB)
Title: Improved inductor assembly
IPC: H01F27/33
Filed: 1956-05-28
Abstract: 793,997. Inductors. GENERAL MOTORS CORPORATION. May 28, 1956 [July 5, 1955], No. 16406/56. Class 38 (2). An inductor comprises a coil 2 enclosed in a magnetic core formed in two parts 10, 18 which are connected by a screw 16 and nut 26 and separated by a resilient shim 20. On rise in ambient temperature, screw 16 expands and the core parts are urged apart by the shim to increase the air gap and so vary the magnetic circuit to keep the inductance constant. The core is mounted in a two-part casing 28, 34 by cement 32 and the upper space is filled with a deformable material 36, e.g. silicone putty.
Patent GB-776611-A (GB)
Title: Improvements in and relating to electrostatic precipitators
Inventor: COSBY WILLIAM TREVOR
IPC: B03C3/41
Filed: 1954-06-03
Abstract: 776,611. Electrostatic precipitation. HOLMES & CO., Ltd., W. C., and COSBY, W. T. June 3, 1955 [June 3, 1954; Nov. 6, 1954], Nos. 16458/54 and 32184/54. Class 39(1). The discharge electrodes of an electrostatic precipitator are formed from two or multi-ply barbed wire. The wire is supported by ferrules d, e from the framework i and is tensioned by nut g. The cross-wires c may be wrapped around individual or both strands a, b and each cluster may have any number of barbs. The wire is preferably of galvanised mild steel. According to the first Provisional Specification a wire or bar may be drilled or perforated to receive sharp pins ; or the surface of the wire or bar may be locally cut to provide sharp regions.
Patent GB-228783-A (GB)
Title: Improvements in boxes or containers
IPC: B65D3/10
Filed: 1924-07-10
Abstract: 228,783. Robinson, J. B. July 10, 1924. Wrappers.-A postal tube is formed by an open-ended cylinder 15 which is chucked at both ends to form rolled internal beads 16, 17.
Patent GB-273307-A (GB)
Title: Apparatus for cleansing metals from oil and other impurities
IPC: C23G5/04
Filed: 1927-06-22
Abstract: 273,307. Wacker Ges. f³r Elektrochemische Industrie Ges., Dr. A. June 25, 1926, [Convention date]. Fats and fatty oils, extracting by solvents.-In an apparatus for cleaning metal articles by means of a solvent liquid such as trichlorethylene, benzine. benzol, and carbon tetrachloride, the articles are contained in a perforated basket h pivotally mounted in the upper part e of a closed container a, the part e being separated from the lower part f by a partition d having a tube g secured to an aperture therein. The cleansing liquid is contained in the lower part f, which may be heated, and is forced through the tube g into the part e and round the articles in the basket h by causing a difference in pressure in the parts e and f by air forced by a pump l through pipes r<1>, r<2> into the part f. When the level of the liquid in the part f reaches the bottom of the tube g, air passes through the latter tube and agitates the liquid in the part e, thus increasing the cleansing action. To assist in this operation, the basket h may be rocked by a handle m. When the cleansing action has been completed, the cock i is opened, the pipes r<2>, r' connected, and liquid flows back again into the container f. To dry the articles in the basket, the pump l is connected by the valve i with the pipe r<3> and the part e, and a current of air forced in. This current of air may be heated by a gas heated worm enveloping the pipe r<3>, or by an electric heater inserted in the said pipe. The air passes from the part e by a pipe r' to a cooling vessel k, in which also any solvent entering in the vapour is condensed and flows back into the container a. To purify the'solvent after use, the solvent in the part f is distilled, and the vapour passes by a pipe r<5> into a cooling worm in the vessel k, the liquid condensed passing by a pipe r<6> to a container o. The difference in pressure in the parts e, f may be produced by means of a. motor-driven pump or an air blast, or compressed gas from containers under pressure may be employed.
Patent GB-568980-A (GB)
Title: Improvements relating to furnaces with circulation of internal atmosphere
IPC: C21D9/663
Filed: 1943-10-11
Abstract: 568,980. Dynamo-electric machines. McDONALD, J., and G.W.B. ELECTRIC FURNACES, Ltd. Oct. 11, 1943, No. 16638. [Class 35] [Also in Group XII] In a furnace having an internal atmosphere - circulating fan mounted on the end 2a of the shaft 2 of an external electric motor 1, the portion of the shaft 2 outside the furnace is hollow and cooled by water supplied through a fixed inner tube 3. In the vertical arrangement shown, the shaft 2 carries a hood 6 which deflects the outflowing water downwardly into a tank 4 having an outlet 7. A modification is described in which the shaft 2 is horizontal, the outflowing water in this case being discharged through apertures in the shaft into a surrounding annular chamber.
Patent GB-1472113-A (GB)
Title: Semiconductor device circuits
IPC: H01L29/74
Filed: 1974-04-17
Abstract: 1472113 Semi-conductor devices SONY CORP 17 April 1974 [18 April 1973] 16800/74 Heading H1K In a semi-conductor device including or comprising a transistor, e.g. comprising N-type emitter 13, P-type base 12 and N-type collector 11, an additional region 21 of opposite (P) conductivity type is included in the emitter region 13 and has potential control means connected thereto for applying an electrical potential to the additional region 21 which is between the potentials of the emitter and base regions, whereby the gain of the transistor element may be controlled. By forwardly biasing the region 21 the gain of the transistor element is greatly enhanced. As shown, the transistor element with an additional anode region 1 forms a thyristor structure which may be switched by controlling the potential on region 21 to effect the gain of one of the transistor elements of the thyristor. It is arranged that the minority carrier diffusion length in the emitter region is greater than the effective distance between the regions 21 and 12. This may be effected by utilizing the potential control of region 21 to reduce the minority carrier gradient in the emitter region 13. The impurity concentration in the epitaxially formed regions 12 and 13 may be 10<SP>15</SP> to 10<SP>16</SP> atoms/c.c.
Patent GB-995174-A (GB)
Title: Hydrogenative cracking of hydrocarbon oils
IPC: B01J21/08
Filed: 1963-04-29
Abstract: Hydrocarbon distillate oils are hydrogenatively cracked at elevated temperature and pressure by contacting with a catalyst comprising at least one metal of the platinum and/or palladium groups intimately associated with an acid acting support comprising at least one refractory oxide, the intimate association having been achieved by precipitating the refractory oxide in hydrogel form in the presence of at least one solution of at least one salt of the said metal or metals or by contacting the support in hydrogel form with at least one solution of at least one salt of the said metal or metals.  The support may contain silica and at least one of the following: alumina, magnesia, zirconia and boria.  Preferably the support comprises 50% to 90% by weight of silica and 50% to 10% by weight of alumina.  The hydrogel may be prepared by (1) adding an aqueous solution of an alkali aluminate to an alkali metal silicate, adjusting the pH to approximately 7 by adding mineral acid, ageing and then washing; (2) adding mineral acid to an aqueous solution of an alkali metal silicate to adjust the pH to approximately 2, adding an aluminium salt e.g. aluminium sulphate, adjusting the pH to approximately 7 by addition of a brine e.g. ammonium nitrate and washing the hydrogel formed.  The catalysts may finally be washed, dried and/or calcined at 427 DEG  to 649 DEG  C., and may contain 0.1% to 5.0% by weight of the metal or metals e.g. palladium.  The catalyst may contain (1) fluorine e.g. 0.1% to 5.0% by weight and (2) a metal promoter e.g. Au, Ag, Cu, Cr, Mo, W, Rh, Mn, Fe, Co and Ni. The hydrocarbon distillate oil, which preferably boils at 232 DEG  to 510 DEG  C., may be pretreated e.g. by hydrogenation to remove coke-forming constituents, nitrogen and sulphur.  The nitrogen content is reduced to less than 75 p.p.m. by weight and the sulphur content to below 0.05% by weight of the hydrocarbon distillate oil. The cracking process takes place at 260 DEG  to 454 DEG  C., 35 to 210 atmos. gauge, an L.H.S.V. of 0.1 to 10 litres of oil/hr/litre of catalyst and a hydrogen: oil mol. ratio of 5: 1 to 50: 1.
Patent GB-133767-A (GB)
Title: A New or Improved Substitute for Jam, Preserve or Jelly.
Inventor: RIDDER RAYMOND DE
IPC: A23L21/10
Filed: 1918-10-15
Abstract: 133,767. Ridder, R. de, and Simonis, O. Oct. 15, 1918. Jam; cereal preparations.-A substitute for jam is composed of flour, potato flour, or farina mixed with powdered colouring-materials and flavouring-essences, tartaric acid, and salt. The powder thus formed is boiled with sugar and water, and the resulting material eaten as jam. The material may be mixed with jam, in which case the sugar may be omitted.
Patent GB-104653-A (GB)
Title: Improvements relating to the Circulation in Water Tube Boilers.
Inventor: YARROW HAROLD EDGAR
IPC: F22D7/00
Filed: 1916-11-24
Abstract: 104,653. Yarrow, H. E. Nov. 24, 1916. Water-tube boilers.-To increase the circulation in the tubes A nearest the source of beat, the tubes are prolonged on one side into the drum, as shown. The water-circulation in the drum may be directed into the tubes by a baffle E secured to the tube-plate. The prolonged tube ends shown may be replaced by suitably-shaped ferrules.
Patent GB-934621-A (GB)
Title: New or improved multi-ratio transmission mechanism for vehicles
Inventor: HULL CHARLES HARTLEY
IPC: F16H61/02
Filed: 1961-05-10
Abstract: 934,621. Band brakes. DAVID BROWN TRACTORS Ltd. July 16, 1962 [May 30, 1961], No. 16917/61. Addition to 917,593. Class 103 (1). [Also in Group XXIV] A band brake for use with an epicyclic reduction gear unit of a vehicle transmission (see Group XXIV), comprises a strip of phosphorbronze 102, one end of which is secured to a anchoring member 103, 104 while the other end is connected to a member 105, 106 carried by a piston 109 in a cylinder 110, and engaged by a loading spring 108. The latter is compressed, to release the brake, by supplying pressure liquid to the cylinder 110 through a connection 111 from the control valve unit regulating the operation of an associated lock-up disc clutch in the reduction gear unit, Fig. 2 (not shown).
Patent GB-547521-A (GB)
Title: Improvements in or relating to electric couplings
IPC: H01R13/508
Filed: 1940-11-28
Abstract: 547,521. Two-part.couplings. GILLARD, F. G., and PLESSEY CO., Ltd. Nov. 28, 1940, No. 17023. [Class 38 (i)] The insulating body 12, 20 in which the plug or socket contacts of a coupling are mounted, are retained in a moulded casing formed of two sleeves 27, 28 having interfitting longitudinal projections 29, 30 with radial ribs forming between them a groove 40 for the reception of a locking ring 31. As shown the ribs on the projections 30 lie on one side of the groove and those on the projections 29 on the other side, but one or both of the sets of projections may have a pair of ribs between which the groove 40 is formed. The sleeve 28 may extend beyond the body part 20 to surround the cable ends 10 which are enclosed in a sheath 41 and a rubber connecting sleeve 42. The plug and socket members may be fastened together by a screw ring 34 co-operating with the ribs 29 and retained by a clip or ring 44 set in a groove.
Patent GB-117387-A (GB)
Title: Improvements in the Desulphurisation of Gases and other Fluids containing Sulphuretted Hydrogen.
Inventor: HEMINGWAY HENRY WILLIAM
IPC: C10K1/12
Filed: 1917-11-21
Abstract: 117,387. Hemingway, H. W. Nov. 21, 1917. Materials for purifying; purifier waste, revivifying.-In desulphurizing coal gas &c. by means of ferrous carbonate as described in Specification 12093/01, the ferrous carbonate is recovered by converting the ferrous sulphide obtained into ferrous sulphate and then treating the affluent or " sweet " liquor with the ferrous sulphate. The ferrous carbonate precipitated is recovered for use in the first stage.