baber/WOPTO huggingface dataset:
Patent GB-719156-A (GB)
Title: Improvements in the purification of liquid hydrocarbons
IPC: C07C7/00
Filed: 1952-05-07
Abstract: Liquid hydrocarbons boiling below 300 DEG  C. are purified by leading in vapour phase at 350-450 DEG  C. over zinc oxide in an amount of at least 1 volume per 2 volumes of liquid hydrocarbon per hour.  The hydrocarbons may be mixed with hydrogen or inert gases, and pressure may be atmospheric, reduced or slightly increased, e.g. 5 atmos.  The zinc oxide is in the form of pieces, e.g. pills, and may have binding agents such as cement, magnesia or silicic acid sol added.  Organic sulphur compounds are decomposed and the hydrogen sulphide formed combines with the zinc oxide.  The spent oxide is regenerated by roasting with oxygen-containing gas at about 600 DEG  C. but zinc sulphate formed must be replaced by fresh oxide.  The hydrocarbons may be further treated with bleaching earth and are suited for use as solvents or for sulphochlorination.  Examples describe the purification of light and heavy benzines using 1 or 2 vols. per vol. zinc oxide at 400 DEG  C. per hour.ALSO:Liquid hydrocarbons boiling below 300 DEG C. such as benzines are purified by leading in vapour phase at 350-450 DEG C. over zinc oxide in an amount of at least 1 volume per 2 volumes of liquid hydrocarbon per hour.  The hydrocarbons may be mixed with hydrogen or inert gases, and pressure may be atmospheric, reduced or slightly increased, e.g. 5 atmos.  The zinc oxide is in the form of pieces, e.g. pills, and may have binding agents such as cement, magnesia or silicic acid sol added.  Organic sulphur compounds are decomposed and the hydrogen sulphide formed combines with the zinc oxide.  The spent oxide is regenerated by roasting with oxygen-containing gas at about 600 DEG C. but zinc sulphate formed must be replaced by fresh oxide.  The hydrocarbons may be further treated with bleaching earth and are suited for use as solvents or for sulphochlorination.  Examples describe the purification of light and heavy benzines using 1 or 2 vols. per vol. zinc oxide at 400 DEG C. per hour.
Patent GB-948022-A (GB)
Title: Improvements in or relating to centrifugal clutches
Inventor: DAVIES DAVID AUBREY
IPC: F16D43/12
Filed: 1961-03-29
Abstract: 948,022. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. March 20, 1962 [March 29, 1961], No. 11509/61. Heading F2C. In a motor-vehicle centrifugal friction clutch engaged through springs 28 by roller masses 34 engaging between a pressure plate 18 and inclined ramps 32 of a reactor plate 22, the clutch is held in light engagement at low speeds by an independent second set of weak springs 27, directly acting between the pressure plate 18 and the cover plate 11 and providing sufficient pressure for tow-starting, low-speed traffic and parking manoeuvres, manual disengagement being effected through conventional release levers 37 and throw-out bearing 38. The reactor plate 22 is supported on the springs 28 on a cover plate 11 secured to an engine flywheel 10, axial inward movement of the reactor plate under the action of the springs 28 being limited by headed studs 26 secured to the cover plate 11. Each roller mass 34 comprises a large diameter middle roller 35 engaging the pressure plate 18 and rotatable relative to two smaller end rollers 36 engaging the reactor plate 11 which is slotted to clear the larger roller.
Patent GB-217713-A (GB)
Title: Improvements in and relating to building blocks
IPC: C04B28/04
Filed: 1923-05-01
Abstract: 217,713. Lumb, E. May 1, 1923. Composite blocks; facing blocks.-Building blocks are formed in two layers, the outer of which consists of a mixture containing 3 parts of sand to 2 parts of Portland cement, the sand being waterproofed by the admixture when in a dry state of a fine, water-repellant powder, while the inner layer is composed of a mixture containing 4 parts of such material as coke-breeze, broken clinker, broken brick, asbestos, and sawdust to one part of cement. Materials such as those sold under the registered Trade Marks " Pudlo " and " Medusa " may be used for waterproofing the sand. The outer face of the block may be decorated by embedding pebbles, granite chippings, or the like therein, as shown.
Patent GB-559536-A (GB)
Title: Holder for cycle pumps
IPC: B62J11/02
Filed: 1942-08-19
Abstract: 559,536. Brackets for cycle reflectors. ELM QUIST, B. D. Aug. 19, 1942, No. 11685. [Class 136 (i)] In a bracket or holde for cycle inflators of the kind comprisng two part tubular members pivoted together and adapted to be brought together and locked to embrace the in flator the swingable par tubular portion is pro vided with a slot or pan cut away to enable the in flator 1 to be moved later ally to facilitate removal As shown two part tubular members 4, 5 are pivotec together at 7 the member 4 being stationary and clipped to the cycle frame tube 2 by a clip 3. The member 5 has a part cut away as shown so that when moved away from the part 4 it permits the inflator 1 to be moved laterally to facilitate removal. The parts 4, 5 are provided with lugs 6 through which a padlock 14 may be passed to lock the parts 4, 5 together. A bottom support 8 clippable to the tube 2 by a clip 12 supports the foot of the inflator and may be provided with means such as a spring 9 to prevent vibration.
Patent GB-713650-A (GB)
Title: Improvements relating to taximeter indicators
Inventor: HOWARTH ARTHUR NEVILLE
IPC: G07B13/04
Filed: 1951-05-18
Abstract: 713,650. Taximeters. BELL PUNCH CO., Ltd. April 23, 1952 [May 18, 1951], No. 11726/51. Class 106 (3) A taximeter indicator comprising a casing one wall of which carries an electrically illuminated panel is subdivided into a plurality of separate portions, a plurality of lamps allocated respectively to the separate portions and switching means for controlling the lamp circuits in such a manner that the respective portions are illuminated automatically in dependence upon the setting of the mechanism is characterized in that the switching means is located inside the taximeter casing. The " flag " spindle 34, Fig. 5, carries a contact bush 38 supplied with current from a battery 36 through a brush 37. The bush 38 carries a contact 35 which in accordance with the setting of the spindle 34 abuts one of the contacts 30, 31, 32 to close the circuits to electric lamps 17, 18, 19 and 20. Each of the lamps is fixed in a socket 21, Fig. 1, the plug 25 of which is screwed into an appropriate hole in a side of the indicator casing 2, 3, 4, 5 which is divided into three compartments A, B, and C by the partition 11 and the lower contact carrier 23. The cover glass 8, Fig. 3, is suitably inscribed at the three compartments. Each inscription is illuminated by its associated lamp when the " flag " spindle 34 is in the corresponding position. The switching means 30, 31, 32 and 35 is located within the taximeter casing to which the indicator casing may be attached in such a way that the casing cannot be removed or opened without opening the taximeter casing.
Patent GB-994719-A (GB)
Title: Improvements in heated or cooled ceiling or wall structures
Inventor: HARRIS PHILIP STUART
IPC: F24D3/16
Filed: 1963-03-25
Abstract: 994,719. Suspended ceilings. G. N. HADEN & SONS Ltd. Feb. 18, 1964 [March 25, 1963], No. 11767/63. Heading E1V. [Also in Division F4] In a panelled ceiling or wall construction the panels have flanges along their edges and heating or cooling pipes and support members are engaged between the flanges of adjacent panels. As shown, aluminium panels 3 having a width of 8 inches are provided with flanges 5 along their longitudinal edges and pipes 2 and supporting rods 4 are alternately secured between the flanges of adjacent panels by clips 6. The pipes and rods are secured to transverse channel-shaped supports 1 by clips (not shown) and a heating or cooling medium is circulated through the pipes. Each panel is formed with a central rib 7 and may be perforated; alternatively the panels may be stepped so that one half of the panel is offset with respect to the other. A thermally insulating and sound absorbing layer may be placed on the panels. The pipes 2 may be spaced by 24 inches rather than 16 inches as shown, in which case two rods 4 are interposed between adjacent pipes.
Patent GB-117708-A (GB)
IPC: B23Q11/00
Abstract: 117,708. Wrightson, W. P. Aug. 17, 1917. Cuttings, catching and removing.-cuttings from a series of boring-machines, lathes, &c. are discharged into a travelling trough c which carries them to a desired point. Lugs e' prevent undue sag between the supports F and a brush I is used to remove the cuttings thoroughly.
Patent GB-326066-A (GB)
Title: Improvements in or relating to nose bands for horses or other animals
IPC: B68B1/04
Filed: 1929-04-16
Abstract: 326,066. Marshall, G. April 16, 1929. Bridles. - A noseband a to replace or to be used in conjunction with an ordinary nose-band is made of rubber or other elastic material and is attached to the bit rings b of a snaffle bridle or to the bit checks of a curb chain bridle. The two ends of the band are secured by a lace c so as to be readily adjustable.
Patent GB-494514-A (GB)
Title: Improvements in or relating to stoppers for bottle and like vessels
IPC: A61F7/08
Filed: 1937-04-24
Abstract: 494,514. Resilient closures for carboys, cans, &c. FREEMAN, W. S. April 24, 1937, Nos. 11791/37 and 10418/38. [Class 125 (iii)] In a closure for a carboy, bottle, can or like container, 10, Fig. 2, comprising a gripping portion 11 which tightly engages the mouth 12 of the container and a resilient sealing skirt 14 attached to the gripping portion and shaped so as to be foldable into and out of position for sealing the mouth of the container, the skirt 14 has an imperforate base to overlie the mouth of the container and a pouring aperture 16, Fig. 1, is afforded between the base and the portion 11 in such a position as to be overlain by the skirt 14 when folded into sealing position. The closure is made of rubber or other resilient material and the part 11 is attached to the base 13 only around part, e.g. one-third, of the circumference, thus providing a pouring slit 16 which is exposed by pushing the skirt to the right, Fig. 1. A groove 17 is provided to facilitate this movement. The base 13 and part 11 may be formed with a co-operating lip and groove round the pouring aperture 16. In a modification the gripping portion may be formed as a plug 21, Fig. 7, to engage the inside surface of the container mouth. The parts 13, 23 are connected at 25 leaving a pouring aperture 24. The plug 21 may be plain and cemented to the container 10. In a further modification the gripping portion 26, Fig. 10, is adapted to serve as a plug 27 or as an outside skirt 28 for a smaller container, while in another form the plug 29, Fig. 11, is formed solid with a pouring hole 30. If desired the gripping portion may be formed with both a plug part and a gripping skirt. A relief valve may be provided in the base 13.
Patent GB-863323-A (GB)
Title: Improvements in the concentration of gaseous isotopes
IPC: B01D59/32
Filed: 1958-04-14
Abstract: Nitric oxide having up to about 2% of isotope-containing molecules e.g. 15NO, N17O and N18O and which are further concentrated by rectification (see Group XXVIII) is prepared by disproportionating of dinitrogen tetroxide with water; the tetroxide being formed during the production of nitric acid.  Lean nitric oxide gas leaving the rectifier is caused to undergo an exchange reaction with nitric acid whereby the starting isotope concentration is re-established according to the formulae: NO + H15NO3 \sp 15NO + HNO3 and NO + HNO218O \sp N18O + HNO3.  Also isotope enriched nitric oxide liquid from the base of the rectifier is treated with nitrous gases and/or nitrous acid as catalyst whereupon the equilibria between individual molecular types readjust themselves according to the formulae: 15NO + N17O \sp NO + 15N17O 15NO + N18O \sp NO + 15N18O and from which mixture 15N17O and 15N18O may be concentrated by rectification.
Patent GB-574459-A (GB)
Title: Improvements relating to adhesives
IPC: C09J157/00
Filed: 1943-07-21
Abstract: Surfaces of metal, wood, glass, rubber and plastics are bonded together by interposing between them a mixture of polyvinyl acetate and/or polyvinyl acetal and a phenol-aldehyde type resin in the resol stage and curing the phenol-aldehyde resin to its infusible and insoluble form.  A solution of the two resins may be applied to one or both of the surfaces and heat applied to cure the adhesive with or without prior evaporation of the solvent. Alternatively, one of the resins may be applied in solution or in liquid form to one or both surfaces and the other applied as a powder.  Further, the mixed resins may be applied between the surfaces as a powder, foil or sheet or impregnated into paper or woven glass fibre fabric.  Curing agents, e.g. additional aldehyde or hexamethylene tetramine, polymerization catalysts, plasticisers and fillers may be added to the mix.  In examples: (1) a solution in ethylene dichloride and methyl alcohol of a mixture of "Novolak" (Registered Trade Mark), polyvinyl formal and hexamethylene tetramine is applied to aluminium alloy surfaces, the solvent evaporated, the surfaces brought together and heated under pressure at 150 DEG -170 DEG  C.; (2) a dehydrated liquid resol is applied to similar alloy surfaces.  Powdered polyvinyl formal is sprinkled on the tacky surfaces which are brought together and similarly heated under pressure; (3) a woven glass fabric impregnated with the solution of (1) above is laid between similar metal surfaces which are then heated under pressure; (4) a polyvinyl formal-resol solution is used to join metal tubes.
Patent GB-416129-A (GB)
Title: Improvements relating to price changing mechanism for meters
IPC: G07F15/08
Filed: 1933-04-24
Abstract: 416,129. Prepayment mechanism for meters. McLUSKY, W. B., Heath Lodge, Skircoat Green Road, Halifax, Yorkshire, and THORP, F., Birchdene, Pinfold Lane, Whitefield, near Manchester. April 24, 1933, No. 11887. [Class 27.] Price-changing mechanism.-In prepayment meters having a changespeed drive between the metering mechanism with the quantity mechanism controlling the valve &c. and means also operated by the metering mechanism to effect one or more speed changes as the total consumption increases, the meter drives a wheel b fixed to a sleeve a on which are loosely mounted gear wheels c, d, e meshing with teeth c<1>, d<1>, e<1> respectively on a face-wheel f attached to a shaft g which is connected to the differential controlling the valve &c. The wheels c, d, e are clutched to the sleeve a by balls c<2>, d<2>, e<2> when these are pressed up by an enlargement h<1> on a rod h entering the sleeve, only one of the wheels being clutched to the sleeve at a time. The rod h is pressed towards the right by a spring i and has a peg j engaging a spiral or circular track k<1>, k<2>, k<3> in a control disc l rotated from the meter through a worm m. The successive circular portions of the track are connected by substantially radial portions k<4>, k<5>. The peg is initially in the portion k' with the wheel c clutched to the sleeve a. After a certain consumption at a dear rate, the peg is moved along the portion k<4> to the track k<2> and the wheel d is clutched to the sleeve, the commodity being now supplied at a cheaper rate. When the peg enters the track k<3> the cheapest rate is in force.
Patent GB-336616-A (GB)
Title: Improvements in the manufacture and production of hydroaromatic hydrocarbons
IPC: C07C1/22
Filed: 1929-04-17
Abstract: 336,616. Johnson, J. V., (I. G. Farbenindustrie Akt.-Ges.). April 17, 1929. Hydroaromatic hydrocarbons are prepared by treating phenols with hydrogen or hydrogencontaining gases at a temperature of 250-100‹ C. and a pressure above 50 atmospheres in the presence of catalysts comprising the oxides or sulphides of metals of the second to the seventh periodic groups (preferably those of the sixth group) in admixture with copper, silver, gold or metals of the eighth group or their oxides or sulphides. The following catalyst mixtures are specified, in which the metals of the second to the seventh group are employed in the form of their oxides or sulphides and the remainder either in the metallic form or as the oxide or sulphide :- cobalt and tungsten; iron and molybdenum; cobalt, molybdenum and copper; nickel and chromium; iron and calcium; nickel and arsenic; cobalt and antimony; nickel and tin; cadmium, iron and antimony; nickel and molybdenum; iron and tungsten; cobalt and molybdenum; aluminium, chromium and nickel; platinum and tungsten; palladium and chromium; osmium and arsenic; osmium and molybdenum; cobalt and calcium; cobalt, nickel and chromium; palladium zinc and molybdenum; osmium, platinum and tin; nickel and antimony; silver, nickel and molybdenum; silver and molybdenum; silver, cobalt and chromium; nickel, cadmium and molybdenum. The constituents are preferably present in molecular or atomic proportions and may be deposited on such carriers as active charcoal, Fuller's earth, Florida earth, diatomaceous earth, silica gel, alumina gel, pumice stone, bauxite, or burnt fireclay. The catalyst is advantageously precipitated upon the carrier or applied in the form of paste. According to the examples, (1) cyclohexane is obtained from phenol using cobalt and molybdenum sulphides precipitated on active carbon (10 parts by weight of molybdenum, 6 parts of cobalt and 50 parts of active carbon) as catalyst; (2) a mixture of hydrocarbons containing hexahydrotoluene from crude cresol in the presence of nickel and molybdenum sulphides (2 parts of molybdenum to 1 part of nickel) deposited on Florida earth; (3) a mixture of hydrocarbons containing hydrogenated naphthalene from the distillation residues of alpha-naphthol using as catalyst a mixture of the oxides of cobalt (2 parts), aluminium (1 part) and zinc (2 parts) mounted on Fuller's earth; (4) a hydrocarbon mixture containing tetra- and decahydronaphthalenes from crude #-naphthol in the presence of nickel and tungsten sulphides (1 part nickel to 3 parts tungsten) deposited on active silica. In each case a hydrogen pressure of 150 atmospheres is employed and a temperature between 250‹ and 350‹ C. Reference is also made to the catalytic hydrogenation of thymol and the phenol fractions of tars. Specifications 247,585, 251,264, 258,272 and 276,001 are referred to.
Patent GB-455303-A (GB)
Title: Improvements in or relating to dental spittoons or the like basins
IPC: A61C17/14
Filed: 1935-04-17
Abstract: 455,303. Spittoons. LEITCH, A. K., 7, Cawdor Street, Nairn. April 17, 1935, No. 11913. [Class 26] A dental spittoon 7, Fig. 1, is arranged to pivot about a vertical eccentric axis 1 which is coaxial with the waste pipe 2 but passes within the periphery of the basin. The basin is carried by the discharge pipe 6 arranged in the form of a double elbow rotatably secured on a ring 4 upon the pedestal 1, the pipe 6 having a downward extension 8 entering the pipe 2 which is housed within the pedestal. The ring carries a bracket 5 supporting an auxiliary basin 9 and containing valves controlling the supply to the basins via pipes 11, 12, 13. The end of the pipe 13 is coaxial with the pipe 2 and is rotatably connected to a twinned outlet 18, Fig. 4, to direct the supply to the sides of the basin.
Patent GB-315493-A (GB)
Title: Improvements in feed mechanism for seed drills
IPC: A01C7/18
Filed: 1928-04-24
Abstract: 315,493. Miller, G. J. April 24, 1928. Seed drills. - Feeding-mechanism for a seed drill consists of one or more inclined rotary discs a mounted within the seed receptacle in contact with fixed back plates c, the rotary discs having holes or pockets b cut through them and the plates c having a portion of their upper parts cut away to allow the seeds held in the pockets to drop into shoots f. The seed receptacle is so arranged that the seed in it may cover only the lower halves of the discs. The inclination of the discs a is such that seeds which do not enter the pockets slide back down the discs as they rotate. Interchangeable discs may be of varying thickness and may be driven at variable speeds. The pockets may be chamfered from the upper or lower side of the discs and may vary in size and number. Different rings of pockets in one disc may discharge. into separate shoots.
Patent GB-1453405-A (GB)
Title: Rt preparation of 3-amino-2,5-dichlorobenzoic acid and deriva tives thereof
IPC: C07C227/00
Filed: 1975-03-21
Abstract: 1453405 3 - Amino - 2,5 - dichlorobenzoic acid CHINOIN GYOGYSZER ES VEGYESZETI TERMEKEK GYARA RT 21 March 1975 [22 March 1974] 11985/75 Heading C2C A process for the preparation of 3-amino-2,5- dichlorobenzoic acid or an alkyl ester or a salt thereof, comprises subjecting an alkyl 3-nitro- 2,5-dichlorobenzoate to reduction and optionally hydrolysing the reduced product. The process is preferably carried out in an aqueous medium. In order to improve the solubility of the starting material it may be suspended in a mixture of water and an appropriate organic solvent, preferably in aqueous acetone. The reduction is preferably carried out at from about 20‹ to 30‹ C.
Patent GB-206173-A (GB)
Title: Improvements in hollow building blocks
IPC: E04B2/42
Filed: 1922-04-28
Abstract: 206,173. Kindstrom, C. April 28, 1922. Building-blocks, special shapes of.-In hollow rectangular blocks having several longitudinal cavities, some of the cavities open only towards the bottom of the block while the remainder extend from the top to the bottom. In the drawing, only the central cavity 2 extends from top to bottom of the block, and the cavities 3 are each stopped at 4. Specification 2190/72 is referred to.
Patent GB-1184222-A (GB)
Title: Method and Composition for reducing Friction on Coated Abrasive Cloth and Abrasive Product
IPC: B24D11/00
Filed: 1967-03-14
Abstract: 1,184,222. Coated abrasive products. ARMOUR & CO. 14 March, 1967 [16 March, 1966], No. 11990/67. Heading C4V. An abrasive product comprises a coated abrasive cloth and a friction reducing back coat thereon, said back coat comprising a wax lubricant and an insoluble alkyd resin binder. The weight ratio of said binder to said lubricant may be in the range of 2 : 1 to 10 : 1. The abrasive cloth may include impregnants, binders and sizes which may be glue, phenolic resin, epoxy resin, alkyd resin, urea-formaldehyde resin, vinyl resin or ethyl cellulose. The abrasive grits may be silicone carbide or aluminium oxide. The lubricant may be a paraffin base wax. The back coat may be applied at the rate of 0À02-0À07 ounce of solid per square foot.