baber/WOPTO huggingface dataset:
Patent GB-1197947-A (GB)
Title: The Preparation of Trimellitic Acid
IPC: C07C51/56
Filed: 1967-10-20
Abstract: 1,197,947. Trimellitic acid. DYNAMIT NOBEL A.G. 20 Oct., 1967 [20 Oct., 1966], No. 47898/67. Heading C2C. Trimellitic acid is prepared by fractionally distilling under reduced pressure the residue obtained in the manufacture of dimethyl terephthalate by oxidation of p-xylene via methyl p-toluate in the liquid phase, to obtain a distillation fraction relatively rich in methyl ester of trimellitic acid, saponifying this fraction and precipitating the resultant trimellitic acid. The saponification step may be effected in either acid or alkaline media. The trimellitic acid produced may be converted to trimellitic anhydride.
Patent GB-1526849-A (GB)
Title: Continuous vulcanisation of rubber
IPC: B29C35/06
Filed: 1976-11-17
Abstract: 1526849 Continuous vulcanization process R MAURITZON 17 Nov 1976 [28 Nov 1975] 47974/76 Heading C3E A web or strip of rubber or rubber-like material is vulcanized by a method comprising continuously unrolling a roll of web or strip and transporting the unrolled web or strip from a first chamber, in which a pressure in excess of atmospheric pressure and a temperature below the vulcanization temperature of the rubber or rubber-like material are maintained, to a second chamber, in which a pressure in excess of atmospheric pressure and lower than the pressure in the first chamber and vulcanization temperature are maintained, transporting the unrolled web or strip with a to and fro movement through the second chamber and thereafter allowing the vulcanized web or strip to be rolled up, for instance in a third chamber in which pressure in excess of atmospheric pressure is maintained. As shown in Fig. 1, the web or strip 4 is unrolled in unheated autoclave I and transported via channel 5 to a second, hot autoclave 2, in which it is supported by rolls 6 or net 7, which is supported by rolls 8. The vulcanized material is transported through channel 9 to rolling device 10 in third autoclave 3. Sluice 11 reduces leakage of hot gaseous medium from autoclave 2 to autoclave 1 and connection channel 5 may be cooled.
Patent GB-1474612-A (GB)
Title: Pneumatic power tool with solenoid controlled shut-off valve
IPC: B23Q5/26
Filed: 1974-05-03
Abstract: 1474612 Power tools THOR POWER TOOL CO 3 May 1974 [14 May 1973] 48208/76 Divided out of 1474611 Headings B3N and B3C [Also in Division F2] The Specification describes the power tool described in parent Specification 1,474,611, but the claims are directed to the shut-off valve assembly 120 in the tool, Fig. 2.
Patent GB-1329273-A (GB)
Title: Colour radiography
IPC: G03C1/46
Filed: 1970-10-12
Abstract: 1329273 X-ray apparatus SPITALUL DE COPII "CALARASI" 12 Oct 1970 [8 Nov 1969] 48439/70 Heading H5R A film for colour readiography includes two radioresistive colour layers, one on each side of a transparent supporting pellicle, the layers giving rise to different colours, and one being of normal and the other of reversed sensitivity to X-rays. When the film is exposed, if the one layer is red and the other is blue, radioopaque matter will appear blue after development, while the radiotransparent areas will appear red.
Patent GB-1010143-A (GB)
Title: Method and apparatus for producing special yarns and yarns produced thereby
IPC: D01D5/092
Filed: 1963-12-10
Abstract: 1,010,143. Roughening fibres; yarns and threads. MONSANTO CO. Dec.10, 1963 [Dec.26, 1962], No. 48628/63. Headings D1F and D1W. [Also in Division B5] Novelty yarns are made by a melt-spinning process in which the filaments emerging from the spinneret 9 are passed through a fluidized bed contained in an elongated vertically positioned tapered tube 1. A randomly pockmarked yarn (Fig. 4) is obtained by using as the fluidized bed fine particles made of an inert infusible material having a high degree of hardness and cut irregularly (e.g. quartz), so that the filaments are scarred on contact. A randomly nubby yarn (Fig. 3) is obtained by using as the fluidized bed fine particles of a fusible material (e.g. polyethylene or other thermo plastic material) which partially fuses to the filaments on contact. Using sugar as the fusible material, a randomly nubby yarn is obtained which may be washed to yield a randomly pockmarked yarn. Aerosol fogs of water, inorganic or organic liquids may be used to produce a filament having a pimpled or wart-like surface. The spinning of nylon filaments is described. Filaments 10 emerging from the spinneret 9, pass through the tube 1, into the converging chimney 16 and hence to convergence guide 32, pigtail guide 34, traverse guide 35 and bobbin 36. A gas, e.g. air under pressure, is supplied via ports (not shown) in manifold 12 to chamber 13, and fine particles are supplied to annular space 17 from a blower and mixing chamber assembly (not shown), thus forming a fluidized bed in the tube 1. 31 is a recirculating pipe. Using fine particles made of an inert material that ricochet from the filaments after contact therewith without deforming the surfaces thereof, the bed functions as a cooling device for the filaments, a high rate of heat transfer resulting from the large particle surface area available for contact, the temperature within the bed remaining substantially uniform.
Patent GB-1241748-A (GB)
Title: Separator for an underwater oil-well
Inventor: ORIEUX PIERRE
IPC: B01D19/00
Filed: 1969-10-06
Abstract: 1,241,748. Centrifugal separators. COMPAGNIE FRANCAISE DES PETROLES S.A. 6 Oct., 1968 [14 Nov., 1968], No. 48994/ 69. Heading B2P. A centrifugal separator for separating gas from crude oil comprises a number of cylindrical sections, e.g. 17, 18, 19, with inclined ends joined in annular fashion to define a substantially curved path for the crude oil, the separator having an inlet 13 for the crude oil at one end of the path and outlets 21, 24 for oil and gas respectively at the other end of the path. As shown, the separator is formed of seven cylinder sections whose projection in plan, Fig. 1, forms seven elements of an octagonal ring, the eighth elements 27 of which contains inlet and outlet ducts for the separator. Crude oil from an underwater wellhead 1 passes via ducts 3, 4 to a fluid monitoring assembly (not shown) containing monitoring instruments for regulating the rate of flow of crude oil, gas and degassed oil and connected to the separator by means of a rotatable member 5 and a fixed member 11, Fig. 2. From the monitoring assembly the crude oil flows along ducts 8, 12, 13, to the separator where, due to the effect of centrifugal force, separation of the gas and oil is effected. The gas is collected in the upper portion of the separator and passes through ducts 21, 7 to the monitoring assembly and thence through ducts 10, 23 to a flare. The degassed oil is collected in the lower portion of the separator and passes through ducts 24, 9 to the monitoring assembly from which it flows along ducts 6, 25 to appropriate pipes. Manholes are provided at 26 and 28. The separator is supported around the well-head 1 on a first set of arms 29-33 rigidly attached to the base of the well-head and is connected to the upper portion of the well-head by a second set of arms 38-41 hinged to fixing means 42-45 on the separator and detachably connected to a collar 46, 47 clamped on the well-head. In modifications, tubes 48 forming the floor of the separator may be omitted and the instruments in the monitoring assembly may be installed in the separator so that the duct 2 may then be connected to the duct 13, the duct 24 to the duct 25 and the duct 21 to the duct 23, and valves may be installed in these ducts.
Patent GB-1280148-A (GB)
Title: Linear motor propelled air cushion vehicle
Inventor: JARVIS EDWARD ALFRED KEITH
IPC: B61B13/08
Filed: 1968-10-16
Abstract: 1280148 Control of motors TRACKED HOVERCRAFT Ltd 9 Oct 1969 [16 Oct 1968] 49017/68 Heading H2J A track-guided hovercraft is driven by a linear induction motor 15 whose double-sided stator straddles a reaction rail, air being supplied to cushion devices on the vehicle by fans which are driven by D.C. motors 9. Themotor 15 is supplied through an inverter 20. If the track power supply fails when the vehicle is at speed, the fan motors 9 continue to turn due to inertia and the regenerated voltage therefrom is maintained by unit 43 at an appropriate value to provide, through storage capacitors 31, the initial reactive volt-amperes for the linear motor which regenerates A.C. under the vehicle momentum. This A.C. is rectified by diodes 28, 29, to restore the power supply to the fan motors which provide lift and guidance pressure during the braking period. A floating battery 40 excites the fan motors when the main power supply fails. A firing circuit for thyristors 26, 27, comprises controller 50 which automatically adjusts the inverter relative to vehicle speed to obtain the desired braking thrust. In another arrangement, the storage capacitors 31 are sufficiently charged at the moment of failure whereby the inverter 20 itself provides the reactive volt amperes for the linear motor to begin to regenerate A.C.
Patent GB-1520800-A (GB)
Title: Manufacture of polyurethane compositions
IPC: C08L33/00
Filed: 1975-12-05
Abstract: 1520800 Polyurethane compositions BASF AG 5 Dec 1975 [6 Dec 1974 (2)] 49984/75 Heading C3R Polyurethane compositions, which may or may not be foamed, are prepared by reacting an organic polyisocyanate with a dispersion comprising a polyether polyol or polyester polyol of mean molecular weight from 500 to 7000 and 1 to 40% by weight, based on the weight of the polyol, of an at least partially cross-linked particulate polymer of average particle size from 500 to 5000 Angstrom units. The particulate polymer is suitably prepared by dispersion polymerization in an aqueous dispersion medium, the medium being at least partially removed after mixing the polymer dispersion with the polyol. Mono-olefinic monomers are suitably copolymerized with crosslinking agents such as divinylbenzene to produce the particulate polymers. It is preferred that at least one of the monomers contains a group reactive towards isocyanates. Graft polymers having two glass transition temperatures, one below - 20‹ C. and the other above +40‹ C., are also suitable as particulate polymers. Preferred graft polymers are those prepared by grafting monomers, e.g. styrene and acrylonitrile, on to a diene rubber backbone. Conventional polyisocyanates and polyether and polyester polyols are used, and when a foam is desired, conventional blowing agents, surfactants and catalysts are incorporated in the reaction mixture.
Patent GB-1425822-A (GB)
Title: Cementitious compositions
IPC: C08B31/18
Filed: 1972-01-28
Abstract: 1425822 Cement compositions FOSROC AG 29 Jan 1973 [28 Jan 1972] 50222/71 Heading C1H [Also in Division C3] A cementitious composition of reduced water requirement and enhanced concrete crushing strength comprises, in addition to Portland cement and aggregate and optionally triethanolamine, a synthetic water-soluble oxidized polysaccharide having an acid value of 10-100 and preferably having the formula where n is 2-32 or: where n is 6-50, preferably 2-20 (see Division C3).
Patent GB-1164318-A (GB)
Title: Catalysts and the preparation thereof
IPC: C07C5/333
Filed: 1966-11-09
Abstract: 1,164,318. Dehydrogenation catalysts. CHEMETRON CORP. 9 Nov., 1966 [12 Nov., 1965], No. 50243/66. Heading B1E. [Also in Division C5] In a method of making a dehydrogenation catalyst of iron oxide (Fe 2 O 3 ) containing a matrix promoter of ZuO and/or CuO and an alkali metal promoter, the iron oxide and the matrix promoter are milled with an excess of aqueous ammonia until the resulting composition has a magnetic susceptibility of 30 x 10<SP>-5</SP> to 300 x 10<SP>-6</SP> c.g.s.u. Example 1 describes the preparation of a catalyst containing Fe 2 O 3 , ZuO, K 2 CO 3 , Cr 2 O 3  and Portland cement. Shape and size of catalyst particles is disclosed.
Patent GB-1447995-A (GB)
Title: Container with push-fit lid and attached dispensing implement
IPC: B65D77/24
Filed: 1973-10-30
Abstract: 1447995 Spreading implement UHU-WERK HUM FISCHER GmbH 29 Oct 1974 [30 Oct 1973] 50509/73 Heading B2L [Also in Division B8] A dispensing implement is provided with a protuberance 4, which is releasably-retained in a neck ring groove 7 of a can by the lip of a push-fit lid 9 closing the can. The implement may be a measuring spoon or brush. However as described, the implement is an adhesive spreader, Figs 1 and 2 (not shown), comprising a plastics body 1 having a notched edge at one end and a hinged portion 1a, bearing the protuberance, at the other so that, when the latter is trapped in the groove, the body may be folded' down against the side of the can.
Patent GB-1079087-A (GB)
Title: Process and apparatus for dehydrating waste solids concentrates
Inventor: GREENFIELD CHARLES
IPC: C02F11/00
Filed: 1965-11-29
Abstract: 1,079,087. Dehydration of sewage sludge and other waste solids concentrates. C. GREENFIELD. Nov. 29, 1965, No. 50579/65. Heading BIB. A waste solids concentrate, such as sewage sludge or black liquor from the paper industry, is dehydrated by mixing it with a relatively non-volatile organic liquid, e.g. tallow oil, fuel oil or glycerine, and subjecting the mixture to a plurality of heating stages at successively higher temperature, wherein water is evaporated, the evolved vapours from each stage (except the first) being employed as heating- medium in the preceding stage, and withdrawing a substantially anhydrous slurry of waste solids in organic liquid from the last stage. Sewage slurry is introduced through line 1 into tank 2 where it is mixed with 50 parts of tallow oil. The mixture is pumped through line 4 into the first stage 5 of a backward flow triple-effect evaporator, where water is boiled off at a temperature of 110‹F. and a pressure of 2" Hg. absolute, by vapour supplied from the second stage through line 7. The vapour evolved in the first stage is conducted from chamber 8 to direct-contact condenser 10. The partially dehydrated slurry is transferred through line 32 to the second stage 13, where it is boiled at 150‹F. by steam conducted through line 14 from the third stage. The slurry is then pumped through line 16 to the third stage 17, where the remainder of the water is boiled off at 250‹F. by steam at 300‹F. supplied through line 19 from boiler 18. The dehydrated slurry, containing 15% solids and only 1% water, is delivered through line 21 to centrifuge 22, from which a clear oil stream is withdrawn through line 23. A stream containing 30% oil and 70% solids is delivered through line 25 to expeller 26, from which dry solids are conveyed to grinder 28 and then blown through line 29 to the furnace of boiler 18, or withdrawn through line 30 for sale as a fertilizer. Level control in each stage of the evaporator is maintained by a sensing element in the sump of each stage which transmits signals to a throttle valve following the pump in the line supplying slurry to that stage. The evaporator stages may be of the single pass, forced recirculation, flash, falling film or rotary wiped film type. The dehydration of an aqueous dispersion of powdered coal, cement or spent lime is referred to.
Patent GB-1471710-A (GB)
Title: Vapour generators
IPC: F22B37/26
Filed: 1974-11-21
Abstract: 1471710 Vapour generators KRAFTWERK UNION AG 21 Nov 1974 [21 Nov 1973] 50583/74 Heading F4A A vapour generator comprises a housing 1 into which liquid to be vaporised (e.g. water) is passed via inlet 19, a nest of U-tubes 22 for heating fluid (e.g. pressurized water) extending between inlet 9 and outlet 10 chambers, and liquid separators 16 arranged above the heating tubes; diverting means being arranged to direct vapour from above the hot side tubes 3 of the U-tube nest to separators above the cold side tubes 4. As shown a baffle plate 26 is pivoted to a bar 23 arranged above the tubes 3 and can be adjusted by a linkage 27 which is lockable to the lower edge of the separators 16. The bar 23 is mounted on a jacket 14 which surrounds the tubes and defines with the housing wall a downspace 14 for feed and returned liquid. The separators 16 are coarse separators, and fine separators 17 are mounted adjacent a steam outlet 18.
Patent GB-1001175-A (GB)
Title: Improvements in or relating to thermo-electric assemblies
Inventor: POLLES ROBERTLE
IPC: G01K1/14
Filed: 1963-12-23
Abstract: 1,001,175. Thermo-electric arrangements. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 23, 1963 [Dec. 27, 1962], No. 50686/63. Heading H1K. A thermo-electric assembly for measuring the temperature of a metallic wall is produced by introducing each of two thermo-electric wire elements 8, 10 into grooves 4 and 6 in the metallic wall 1, heating to diffuse the wire material 1 into the wall and closing back the lips of the groove to hold the wires in place. In the example, the wires on leaving the surface of the wall are led through stopper 16 into a metallic sheath 12 containing magnesium oxide 12 as an insulator. The thermo-electric wires may consist of copper-constantan, " Chromelalumel " (Registered Trade Mark) or ironconstantan, and the wall of aluminium or zirconium alloy.
Patent GB-1513770-A (GB)
Title: Displacement gyroscopes
IPC: G01C19/46
Filed: 1976-12-07
Abstract: 1513770 Gyroscopic apparatus FERRANTI Ltd 7 Dec 1976 [10 Dec 1975] 50697/75 Heading G1C A displacement gyroscope comprises an erection system in which the erection torque is applied discontinuously in a cyclic manner. In a system using electric torque motors, these are switched on and off by a time-controlled switch; with gas torque motors, the supply to or from the motors is cyclically interrupted, or vanes directing the gas may be repositioned cyclically to provide a nett zero torque.
Patent GB-1356833-A (GB)
Title: Compressed substrates for growing plants
IPC: A01G9/10
Filed: 1971-11-02
Abstract: 1356833 Packages of compressed substrate for growing plants BAYER AG 2 Nov 1971 [7 Nov 1970] 50956/71 Heading B8C [Also in Division C1] A compressed substrate for growing plants comprises particles of hydrophilic polyurethane foam resin which have been compressed and are retained in a compressed state with adhesive, which adhesive is compatible with plants, the foam particles being capable of swelling when treated with water, the compressed foam being covered with synthetic resin foil which is large enough to contain the foam particles after swelling with water. The substrates which are easier to pack and are of reduced volume may be in the form of bands, strands or plates in which the foam particles after compression may occupy 5 to 50% of the volume before compression. The foam particles may be chips, flakes, cubes, threads, strips or bands. Adhesives specified are alginates, starch, cellulose ethers, plant gum, polyvinyl alcohol and natural or synthetic latex. The foil may be based on polyvinyl chloride, polyethylene, polypropylene, polycarbonate, polyester or cellulose derivatives. Optional ingredients are fertilizers, growth promoting agents (gibberellins), hydrophobic polyurethane resin, lime, calcium phosphate, peat, lignite, sawdust, cellulose material, lignin waste products and buffering agents.
Patent GB-1393044-A (GB)
Title: Production of alkylate
IPC: C07C1/00
Filed: 1973-11-05
Abstract: 1393044 Alkylate gasoline TEXACO DEVELOPMENT CORP 5 Nov 1973 [29 Dec 1972] 51254/73 Heading C5E A method of preparing alkylate gasoline from a charge stream containing paraffinic components which comprises: (a) isomerizing and cracking said charge stream in the presence of hydrogen and an isomerizing-cracking catalyst thereby forming an isomerized-cracked stream containing isobutane, light paraffins and heavy paraffins; (b) separating an isobutane-containing stream from said isomerized-cracked stream; (c) thermally cracking the resulting deisobutanized isomerized-cracked stream in the presence of steam thereby forming a thermally cracked stream containing C 4  olefins fraction; and (d) alkylating said isobutane-containing stream with said thermally cracked stream thereby producing an alkylate gasoline fraction. The isomerization/cracking catalyst may be a halogen-activated Al 2 O 3  catalyst containing Pt, Pd, Rh or Ru. Steam cracking may be carried out at 1100-1700 F. The alkylation catalyst may be 95% H 2 SO 4 .
Patent GB-1163007-A (GB)
Title: Tension Control for a Moving Web
IPC: D21G9/00
Filed: 1966-11-16
Abstract: 1,163,007. Photo-electric tension control. CANADIAN GENERAL ELECTRIC CO. Ltd. Nov. 16, 1966 [Nov. 18, 1965], No. 51300/66. Heading G1A. [Also in Division G3] Tension in a moving web is automatically controlled in dependence on the size of a loop formed in the web by differential air pressure and measured by the amount of light reflected from a curved portion of the web. In Fig. 1, a paper web 10 is drawn off a reel 11 and passes over curved surfaces 29, 26 between which is a space 31, with adjustable end walls, to which suction is applied by an exhaust fan 84 so that a shallow loop 32 is formed in the web. Light from a lamp 35 in a compartment 37 passes through a glass roof and is reflected by the paper on to a photo-cell 36 in a compartment 38. The amount of light so reflected is dependent on the size of the loop which is automatically maintained constant by applying the photo-cell output through an amplifier 15 to control a pneumatic, hydraulic, or electromagnetically operated brake 19 acting on reel 11. Other arrangements of lamp and photo-cell are described and, in one, the loop size determines the extent to which the photo-cell is obscured by the web as well as the amount of reflection. The curved surfaces between which the loop is formed may be rollers and air may be blown from above instead of being sucked from beneath the web.
Patent GB-1328817-A (GB)
Title: Ultrasonic delay line glass
IPC: H03H9/36
Filed: 1970-10-29
Abstract: 1328817 Acoustic delay lines FUJI PHOTO FILM CO Ltd 29 Oct 1970 [31 Oct 1969] 51535/70 Heading H3U [Also in Division C1] A glass for an ultrasonic delay line comprises in mole per cent SiO 2  54-65; B 2 O 3  17-28; Al 2 O 5  3-6; PbO 6-13 and alhali metal oxide 3-10, the sum of SiO 2  + B 2 O 3  being 79-85. Up to 6 mole per cent of the PbO over and above said minimum of 6 mole per cent may be replaced by a heavy metal oxide such as Bi 2 O 3 , LrO 2  or BaO. Up to 5 mole per cent of the alkali metal oxide over and above the 3% minimum may be replaced by alkaline earth oxide. Lead zirconate-titanate shear wave transducers may be attached to both ends of a bar of such glass.
Patent GB-1362927-A (GB)
Title: Device for producing a non-adherent plastics granulate of prede termined low moisture content
IPC: B29B13/06
Filed: 1972-11-08
Abstract: 1362927 Drying plastics granulate MIAG MUHLENBAU UND INDUSTRIE GmbH 8 Nov 1972 [10 Nov 1971] 51626/72 Heading F4G [Also in Division B5] A device for producing a non-adherent plastics granulate of moisture content below a predetermined amount comprises a turbulence heater 5 for converting the granulate amorphous structure into an at least partially crystalline one by hot gas, and a tray drier 1, the upper part 2 of which is connected to the outlet 7 of the heater, the drier being arranged for continuous drying of the granulate. Gas is fed through the drier via inlet 21, the moist gas being exhausted through conduit 24 to a centrifugal separator. Agglomerate is conveyed in batches into the turbulence heater by hot gas through a conduit 8 and, by means of the valve 6, is discharged at intervals through the outlet 7 into the tray drier. Exhaust gas passes up through an outlet 14 to the centrifugal separator. A gas-flow circuit is described, Fig. 2, (not shown), which contains gas heaters (13, 22), a gas preparation device (28) and an arrangement of valves (20, 26, 26<SP>1</SP>) such that the entire system can operate as a closed circuit, a partially closed circuit, or an open circuit and regeneration of the drying and treatment gases is provided.