baber/WOPTO huggingface dataset:
Patent GB-884771-A (GB)
Title: Thermoplastic resin mixtures and their production
IPC: C08L79/08
Filed: 1958-12-03
Abstract: A thermoplastic resin mixture comprises a base resin of normally-rigid high molecular weight organic polymer, having dispersed therein 0,05-20% by weight of a P.T.F.E. resin in the form of finely-divided microfibrous and sub-microfibrous particles having diameters in the range 100A to 2 microns.  The base resin may be a polymer of formula (-A-B-)n, n being at least 50; A is a divalent hydrocarbon radical of formula (I) or (II), B is a connecting link radical of any of formulae (III)-(IX), <FORM:0884771/IV (a)/1> wherein m is an integer between 1 and 20, Z1 and Z11 are H or alkyl, X is H, alkyl aryl or halogen, Y is H, halogen, nitrile, carboxylate ester, hydroxyl, alkoxy or acetyl, R is H, alkyl, aryl, alkaryl or alkoxymethyl.  Specified base resins are polystyrene, polyethylene, ethylene/1-olefin copolymer, polyvinyl halide, polyvinylidene halide, polyacrylate (e.g. polymethylmethacrylate), a C6-10 linear diamine/C2 10 linear dicarboxylic acid polyamide such as polyhexamethylene-adipor-sebac-amide, C4-12 w-aminoacid superpolyamide such as polycaprolactam, polyether, polycarbonate or a polyoxylakylene such as polyoxymethylene (e.g. as diacetate). The P.T.F.E., prior to being subjected to high shear so as to reduce it to the microfibrous or submicrofibrous particles employed in the composition of the invention, is in the form of a finely divided powder or fluff as obtained from the polymerization reaction; it is reduced to the indicated particle size range before or after mixing with the base resin. Specifications 753,299, 770,717, 868,365 also U.S.A. Specification 2,816,883 are referred to.
Patent GB-1381968-A (GB)
Title: Method for introduction and circulation of oxygen or oxygenous gas in a liquid which is to be clarified and apparatus for carrying out the method
IPC: B01F7/00
Filed: 1972-08-22
Abstract: 1381968 Aerating; agitating and circulating liquids J R KAELIN 22 Aug 1972 [2 Sept 1971] 39039/72 Heading B1C A surface aerator 2 in a clarification tank 1 is associated with an increased impeller 9 which directs liquid towards the aerator. The impeller has adjustable blades, a draft tube 10 and an inlet pipe 11 for oxygen-containing gas. Aerator and impeller may be mounted in a common shaft 7 which also carries a second adjustable impeller 13 within an activated sludge supply pipe 12; the blades of the impeller 13 may be automatically adjusted to regulate the sludge supply to which there may be a gas supply through pipe 14. In modifications the shaft 7 may be dispensed with and the impellers 9, 13 driven by a common submerged motor (16, Fig. 2 not shown); if pure oxygen is used the tank 1 may be closed and have gas supply and discharge pipes (17, 18 Fig. 3 not shown) above the surface of the liquid.
Patent GB-1514959-A (GB)
Title: Hot melt adhesive compositions
IPC: C08L23/00
Filed: 1975-09-25
Abstract: 1514959 Polymer compositions E I DU PONT DE NEMOURS & CO 25 Sept 1975 [26 Sept 1974 18 July 1975] 39424/75 Heading C3M Compositions having a tensile elongation of 50-400% comprise (A) 3-15% of ethylene vinyl ester copolymer having a melt index of 2-100 and comprising 67-90% ethylene and 10-33% vinyl ester containing 1-4 C atoms in the acid moeity, (B) 15-40% of hydrocarbon resin having a ring and ball softening point of 50-70 C. and a viscosity of 0À5-1À5 poise at 135 C., (C) 0-3% of ethylene homopolymer of MW 1500-4000, density 0À91-0À96 g./cc. and melting point 220-270 F., (D) 0-3% paraffin wax, (E) 0-0À3% antioxidant and (F) 40-75% filler. The preferred copolymer is an ethylene vinyl acetate copolymer, and the compositions may be used for backing carpets.
Patent GB-966097-A (GB)
Title: Liquid storage tanks
Inventor: LARSON CARL VICTOR
IPC: A01J9/04
Filed: 1960-11-16
Abstract: 966,097. Refrigerating; cooling liquids in bulk. SUNSET EQUIPMENT CO. Nov. 16, 1960, No. 39431/60. Headings F4H and F4S. [Also in Divisions E1, E2 and F2] A bulk liquid storage tank comprises spaced inner and outer U-shaped metal shells 10 and 12, the upper edges of which have return bend portions 78 and 87 respectively (Fig. 9), shell 10 also having an approximately horizontal portion 82 which is bent downwardly and fixed to the outer shell at 79. The inner shell is supported by a frame, Fig. 5, comprising channelshaped saddle and longitudinal members 16 and 18 respectively and adjustable legs 14 which project through the outer shell. A central transverse bridge member 50, Fig. 1, is secured across the tank and supports a motor 52 which drives an agitator blade 54. On either side of the bridge 50 are provided hinged covers 70, 72 having downwardly turned edges which fit over the return bend portion 78 of shell 10 when in their closed positions, means being provided for retaining the covers in the open position when necessary. Indented plates are welded to the outside of the lower part of the inner shell to define therewith a plurality of refrigerant passages, each having its own supply and return line for refrigerant (Fig. 4, not shown). In a modification (Fig. 20, not shown), refrigerant is supplied to each end of each refrigerant passage and is withdrawn from a central point thereof, a common return line being provided. The operation of the refrigerating system is controlled by a thermostat 126 (Fig. 16), and the refrigeration cycle may be manually initiated by operation of a switch 118 to energize a relay 120 which in turn energizes a heating coil 122 attached to the capillary 124 of the thermostat. Thermal insulation 45 is interposed between the shells 10 and 12 and shell 10 may be provided with a reinforcing member shaped to fit within the return bend portion 78 (Fig. 6, not shown).
Patent GB-1198316-A (GB)
Title: Light-Curing Resinous Mass and Repair Pad incorporating same
Inventor: BENSON BURTON ALLAN
IPC: B32B17/04
Filed: 1967-08-29
Abstract: 1,198,316. Laminated patch for repairing vehicle bodywork. MINNESOTA MINING & MFG. CO. 29 Aug., 1967, No. 39521/67. Heading B5N. [Also in Division C3] A patching unit for repairing damaged vehicle body panels comprises an ultra-violet lightcurable, resin-impregnated, fabric pad having one of its surfaces removably supported on a release liner and covered over its other surface by an ultra-violet light-transparent foil. The unit is stored in an envelope which is opaque to ultra-violet light. For use, a unit is removed from its envelope, the release liner is removed and the exposed sticky surface of the pad is applied to the damaged body panel. Sunlight, or another source of ultra-violet light, cures the resin, after completion of which the transparent foil may be removed. The pad may be of woven glass-fibres or other natural or synthetic fibres, e.g. polyamide, polyester or polyacrylate fibres. The resin, which has a viscosity of 800-1500 centipoises at 115‹ C. and not less than 200,000 centipoises at 24‹ C., may comprise 75 parts by weight of a polyester of maleic anhydride, isophthalic acid and propylene glycol, 25 parts of a polyester of maleic anhydride, adipic acid, o-phthalic acid and diethylene glycol and 25 parts of diallyl phthalate or triallyl cyanurate, or diallyl adipate, or allyl diglycol carbonate, or triallyl phosphite, or tetra-allyl pyromellitate, or diallyl isophthalate. The mixture of 125 parts has an unsaturation value of 0À002 to 0À003 moles of hydrogen per gram. To the mixture is added from 4 to 10 parts of either phenoxy or polyvinyl formal resin and from 2 to 3 parts of an aromatic acyloin photo-polymerization catalyst, e.g. benzoin or benzoin ethyl mether. A portion of the mixture of these five components may be disolved in acetone, the resultant solution being used to impregnate the fabric pad. A further portion of the mixture, free of solvent, is applied at a temperature of about 115‹ C. to both surfaces of the impregnated pad. The ultra-violet light-transparent foil may be an oriented polyester film. The release liner may be silicone-coated paper or a foil of silicone. The liner may form part or all of the unit enclosing envelope.
Patent GB-855996-A (GB)
Title: Double-focussing spectrometer
IPC: H01J49/32
Filed: 1957-12-23
Abstract: 855,996. Mass spectrometers. TRUB, TAUBER & CO. A.G. Dec. 23, 1957 [July 1, 1957], No. 39853/57. Class 39(1). [Also in Group XXXVI] A double-focusing magnetic spectrometer comprises two independently-excitable coil systems 6, 7, one mounted on the central core 1 and the other on the inside of the shell 4, so that the required law of variation of axial field strength in the radial direction may be maintained at both high and low field values in spite of the non-linear effects of the iron present. Preferably the coefficient # of the quadratic term is either or #. As shown the core 1 and shell 4 are joined by shaped pole-pieces 2, 3 and each coil system contains six coils with symmetrical pairs connected in series, magnetic layers 8, 9 being interposed between the coils. A magnetometer arrangement (see Group XXXVI) may be employed to monitor the field distribution continuously so that adjustments may be made, automatically if desired, in the coil currents to maintain the required law.
Patent GB-944468-A (GB)
Title: Improvements in or relating to boilers
Inventor: MASRIEH MARIO MICHEL
IPC: F24H1/26
Filed: 1962-10-22
Abstract: 944,468. Hot-water boilers; vertical steam boilers. PERRY HEATING APPLIANCES Ltd. Oct. 22, 1962, No. 39889/62. Heading F4A. A boiler for heating water for domestic purposes or for generating low pressure steam comprises an upright, cylindrical combustion chamber 1 having in its lower part within a protective hearth ring 5 an oil burner with a combustion grill 4 from which a ring of flame rises closely adjacent the combustion chamber wall. The top of the chamber is closed by a wall 8 below which is suspended by radiallyextending fins 12 encircling a flue gas exit 13, a baffle plate 10 with a depending skirt 9. Gases rising in the chamber are deflected into the space beneath the plate 10 by an annular-shaped baffle projection 14 and escape therefrom through the annular space between the skirt 9 and the combustion chamber wall to flow to the flue exit between the radial fins 12. The vertical wall and upper wall of the combustion chamber are enclosed in a water jacket 15 having a hot-water outlet 17 and a lower cold water inlet, not shown. In modifications, the baffle plate 10 may be located within the skirt 9 at some intermediate point or may be located at the bottom of the skirt.
Patent GB-1308932-A (GB)
Title: Zirconium tetrafluoride process
IPC: C01G25/04
Filed: 1970-08-19
Abstract: 1308932 Zirconium tetrafluoride ELDORADO NUCLEAR Ltd 19 Aug 1970 [25 Aug 1969] 39936/70 Heading C1A Zirconium tetrafluoride (anhydrous) is obtained by preparing a clear solution of zirconyl nitrate in nitric acid solution of normality at least 8 and having a zirconium content of 50- 150 gm./litre, precipitating therefrom at a temperature of at least 30 C. ZrF 4 .H 2 O by the addition of hydrofluoric acid, preferably anhydrous, isolating and drying the zirconium tetrafluoride, prejerably at 250-325, and optionally using the acid solution remaining to prepare the zirconyl nitrate solution. The dried zirconium fluoride is preferably then treated with at least 50 volume per cent HF at 300-500 C. and then at 500-600 C. followed by stabilizing by heating at 500-650 C. in an inert atmosphere.
Patent GB-1484299-A (GB)
Title: Instruments for macerating and removing body tissue
IPC: A61B17/00
Filed: 1974-09-13
Abstract: 1484299 Instrument for cataract surgery NATIONAL AERONAUTICS & SPACE ADMINISTRATION 13 Sept 1974 [14 Sept 1973] 39937/74 Heading A5R An instrument for macerating and removing cataractous tissue comprises a rod 15 having a screw portion 17 and a cutting edge 16, the rod being rotatably mounted in a tube 20 having an axial aperture 21 overlapping a part of the screw portion 17 adjacent its open end so as to achieve a pumping action between the open end of the tube 20 and the aperture 21 on rotating the rod at e.g. 300,000 rpm using e.g. a dental air turbine 18, and another screw portion 26 formed by spiral grooves on the rod 15, the handedness of the portion 26 being opposite to that of the screw portion 17 so that the treatment liquid entering a cavity 23 through passages 30, 31 is directed in the space between the rod 15 and the tube 20 towards the aperture 21 to flush the space, and cool and centre the rod 15. The rod 15 can be moved axially with respect to the tube 20 by depressing a foot-pedal 55 which causes a rod 57 to slide axially a cam 45 in the handle 11 against the force of the springs 52, 53. This movement of the cam results, through the pivotal movement of a bell-crank 47 about a pin 48, in the axial movement of the air turbine 18 and the rod 15. Tubes (8, 9) providing respectively a passageway 41 for the treatment liquid, and a passageway 35 for the cataractous tissue and the used liquid, are either circular tubes or portions of circular tubes attached longitudinally to the tube 20. Alternatively, a single circular coaxial tube with longitudinal barriers or a coaxial tube with an elliptical cross section, the length of the minor axis of the ellipse being equal to the external diameter of the tube 20, is used to provide the passageways. The treatment fluid is supplied to the passageway 41 through a spring-loaded, diaphragm type pressure regulator 68 disposed in the handle. To avoid accumulation of the treatment liquid and air in a cavity containing a spring 32, the cavity is connected to an air-powered ejector (5) (Fig. 4 not shown). Dimensions of the tube, the rod, the aperture and the handle are disclosed.
Patent GB-1089138-A (GB)
Title: Projection apparatus
Inventor: GOOD WILLIAM EARL
IPC: G03B21/20
Filed: 1964-10-01
Abstract: 1,089,138. Cathode-ray tubes. GENERAL ELECTRIC CO. Oct. 1, 1964 [Oct. 16, 1963], No. 40059/64. Heading HID. [Also in Division H4] In an optical projection system particularly for colour in which a light modulating medium 11, Fig. 1, located between input and output masks 9 and 16 is deformed into diffraction gratings by an electron beam, a first array of converging spherical lenticules 13 focuses light from source 10 on to the transparent areas of mask 9 and a second array of converging spherical lenticules 14 images each lenticule of the first array on to the raster area of the light modulating medium. The lenticules are preferably contiguous to form plates, as shown, which are sectors of concentric spherical shells the common centre of which is the centre of the raster area of medium 11. The lenticles preferably extend outward from one of the plate surfaces, the other surfaces being smooth as shown, and the input light mask is located in contact with the smooth surface of the second lenticular lens plate 14. The masks comprise opaque bars which may be in three groups with a central group at right-angles to the outer groups for the transmission of different colour components the light modulating medium being deformed into three diffraction gratings and the input lens system including a colour filter. If the centre-to-centre spacing of the horizontal slots to the vertical slots in the masks are not related to the aspect ratio of the raster area on the light modulating medium, the centre and outer groups of lenticules in one of the plates, preferably the first plate, are situated at different axial locations in order to obtain high efficiency and uniformity of illumination of the raster area, Figs. 6 and 7, not shown. The lenticules which are arranged in vertical columns and horizontal rows have the same aspect ratio as determined by the aspect ratio of the raster but the lenticules in the different groups have different dimensions and focal lengths. Reference has been directed by the Comptroller to Specification 1,027,272.
Patent GB-1427837-A (GB)
Title: Processes for the production of shaped articles
IPC: A47J36/02
Filed: 1974-09-16
Abstract: 1427837 Sheet forming IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Nov 1974 [20 Sept 1973 23 Nov 1973 16 Sept 1974] 44132/73 54386/73 and 40182/74 Heading B5A A process for forming an article, e.g. a food container, comprises cold-forming a molecularly orientated film of a linear polyester, e.g. a biaxially orientated film of polyethylene terephthalate, in a mould, e.g. below 50‹ C., heat setting the film, e.g. at 230‹ C., whilst it is in the restrained condition, and cooling the film. In Fig. 7, the film is clamped by rings 36 against a steel ring mould 33. A sheet copper punch 30 supported on columns 31 is moved into contact with the sheet by an hydraulic jack 37. An aluminium heater 40 is then moved into contact with the punch to set the film. Subsequently a cold-box (44), Fig. 1 (not shown), is moved to a position above the mould 33. The sheet can be heated by infra-red apparatus. A lid can be secured to the container, Figs. 5 and 6 (not shown), by means of adhesive which is set by electric heating wires (24). The sheet can be relaxed during cold-forming by withdrawng the punch 10% of its stroke.
Patent GB-1122995-A (GB)
Title: Improvements in control means for vehicles
IPC: B62D53/02
Filed: 1965-09-22
Abstract: 1,122,995. Controlling vehicles; articulated vehicles. ATLAS COPCO A.B. 22 Sept., 1965 [28 Sept., 1964], No. 40313/65. Heading B7H. [Also in Division F4] A vehicle comprises a driver's compartment, with a seat 47 and steering and power control members 48, 49, swingable from a forward facing position to a rearward facing position, the control members being operable in the same way in relation to a driver when in both positions, the power control 49 controlling forward and reverse vehicle movement and the steering control 48 being coupled to a control valve 113, which directs fluid to contract or expand a steering cylinder 132, through a changeover valve which is controlled by movement of the seat to automatically change the direction of the fluid flow to the cylinder 132 upon turning round of the seat. As shown the vehicle comprises a front unit 40 with an engine 165 pivotal
Patent GB-1209220-A (GB)
Title: Process and apparatus for printing and dyeing of continuous webs
IPC: D06B21/00
Filed: 1968-08-23
Abstract: 1,209,220. Dyeing carpet material. ARTOS DR. ING. MEIER-WINDHORST K.G. 23 Aug., 1968 [24 Aug., 1967], No. 40322/68. Heading D1L. Plant adapted to print or impregnate a continuous length of carpet material comprises alternative printing device 12 and impregnating device 16 followed by common dye setting chamber 15, breadth washing machine 19, vibrating device 20, water removal suction device 21, optional dryer, and folding machine 22. In chamber 15, the material is subjected to an atmosphere of steam supplied from a plurality of nozzles while it passes over a steam-heated cylinder (24), support rods (25), and a rod conveyor chain (26).
Patent GB-1012661-A (GB)
Title: Silo, especially for agricultural silage (green silage)
IPC: A01F25/16
Filed: 1960-11-24
Abstract: 1,012,661. Silos. P. A. MARTINI. Nov. 22, 1961 [Nov. 24, 1960], No. 40387/60. Addition to 1,009,551. Heading A1F. An inclined -silo having a filling opening at one end and an emptying outlet at the other is characterized in that it is curved at its lower part towards the emptying outlet. The filling opening is located at an oblique angle to facilitate filling the silo.
Patent GB-1519203-A (GB)
Title: Marine risers in offshore drilling
IPC: E21B19/00
Filed: 1975-10-02
Abstract: 1519203 Marine riser CHEVRON RESEARCH CO 2 Oct 1975 [2 Oct 1974] 40443/75 Heading E1F A marine riser is tensioned by means of open-bottomed buoyancy chambers 117 secured at their top ends to the riser. To allow for expansion and contraction the lower ends of the chambers are movable along guides 126 secured to the riser. Pressurised gas is fed to the chambers from a source 107 via a pressure regulator 147, a supply valve 122, one or more conduits 123, and a valve 128, Fig. 2, which is controlled by a float 129. When the chamber is to be flooded the valve 122 is closed and a vent valve 121 is opened which causes the air to be vented from the chamber via a one-way valve 127 when the water rises sufficiently to lift the float 129 the valve 128 is opened to further vent the air. The upper end of the riser is provided with a slip joint 106, Fig. 1, which includes a pair of telescopic members 108, 109. The inner member 109 serves as a piston and the outer member 108 serves as a cylinder and includes ports 113 for the passage of water during each stroke. In use the riser is lowered either with the chambers flooded, or with the chambers containing air and the riser suitably ballasted.
Patent GB-1111759-A (GB)
Title: Hydrometallurgical process for treating sulphides containing non-ferrous and ferrous metal values
IPC: C01G9/06
Filed: 1966-09-09
Abstract: Sulphur and a solution containing a predetermined concentration of zinc sulphate (preferably 150 g. Zn/1), are prepared from zinc sulphide ores containing iron by leaching the ore with sufficient sulphuric acid to form the required concentration of zinc sulphate, but insufficient to react with all the sulphide (100 moles acid to 120-160 moles of sulphide), and heating this slurry to a temperature above the melting-point of sulphur, preferably 125-160 DEG  C. with a free oxygen-containing gas at an oxygen overpressure of at least 5 p.s.i., preferably 20-100 p.s.i.  This oxidizes the sulphide to sulphur, forms ZnSO4 solution and oxidizes and hydrolyses the iron to an insoluble basic sulphate which precipitates, the reaction generally being continued until the iron concentration in solution is less than 1 gram per litre.  The leach solution is then separated from the residue and may be treated, e.g. by electrolysis, to extract zinc.  The unreacted sulphide and sulphur are separated from the residue and the sulphur is then extracted from the sulphide by volatilization, solvent extraction or other methods.  The sulphide left is then recycled to the first step.
Patent GB-1471561-A (GB)
Title: Method for continuous sampling of a mixture
IPC: G01N1/22
Filed: 1974-09-17
Abstract: 1471561 Sampling a polyphasic mixture of compounds ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES ELF 17 Sept 1974 [21 Sept 1973] 40483/74 Heading G1B A method for continuously sampling a polyphasic mixture of compounds having a monotonic, as defined, relationship between boiling point and molecular weight for the analysis of gaseous compounds of said mixture which have a mass, i.e. molecular weight, below a selected value, comprises continuously sampling, within a sampling by-pass passage connected in parallel to a main flow passage for the mixture to be analyzed, a fraction of said mixture, passing the said fraction via traced, as defined, pipes through at least one dust remover, then through at least one heat exchanger in which a heat-transporting fluid circulates at an adjustable temperature T 1  condensing gaseous compounds having greater mass than said selected value in a housing placed within an enclosure at an adjustable temperature T 2  greater than T 1  and which housing is maintained under stable pressure and temperature conditions and passing to an analytical instrument the gaseous output from said housing. The analytical instrument may be a mass spectrometer. The sampling flow-rate may be adjusted downstream of said housing.