baber/WOPTO huggingface dataset:
Patent GB-1391115-A (GB)
Title: Method of dust supression in rock breaking operations
IPC: E21F5/06
Filed: 1972-05-31
Abstract: 1391115 Suppressing dust IMPERIAL CHEMICAL INDUSTRIES Ltd 9 April 1973 [31 May 1972] 25493/72 Heading C4X [Also in Division E1] A solution for use in dust suppression is formed by dissolving in water free from surface active agent at least one water soluble polysaccharide such as natural gum or a cellulose derivative. Preferably the water contains from 0À1-1% by weight of polysaccharide and preferred polysaccharides are guar gum, karaya gum, carob seed gum or a water soluble salt of carboxymethyl cellulose. There is disclosure of the use of sodium carboxymethyl cellulose having a degree of substitution of 0À5-1À0 carboxymethyl groups per anhydroglucose unit and a viscosity such that. 1% w./v. aqueous solution has a viscosity of 50-4000 centipoises at 20‹ C.
Patent GB-887469-A (GB)
Title: Process for reclaiming oxine flotation reagent from products of flotation
IPC: C07D215/30
Filed: 1958-08-08
Abstract: A solution of "oxine" is reclaimed from an aqueous mineral flotation pulp containing oxine as a collector reagent in a process consisting of three stages as follows:  (1) the oxine reagent is separated from the mineral particles in the pulp by froth flotation in an alkaline medium or by acidification of the solution followed by filtration; (2) a stoichiometric excess of a substance supplying copper, nickel, cobalt, mercury or antimony ions is added to the filtrate from (1) to convert the oxine into a single heavy metal quinolinate which is then precipitated by raising the pH of the solution, if necessary; and (3) the precipitate is treated to remove the ions of the selected metal, leaving the oxine product.  The metal ions may be removed by treating the precipitate with an alkaline metal sulphide in an alkaline suspension and filtering off the sulphide, or by dissolving the precipitate in dilute mineral acid and subjecting the solution to electrolysis or treatment with hydrogen sulphide.  The "oxine" is defined as 8-quinolinol or one or more alkyl derivatives thereof. Specifications 798,768 and 826,827 are referred to.ALSO:A solution of "oxine" is reclaimed from an aqueous mineral flotation pulp, obtained in the separation, for example of niobium or uranium from their ores, in a process consisting of three stages as follows, and the resulting oxine is suitable for use as a flotation reagent in the processing of additional quantities of ore:-  (a) the oxine reagent is separated from the mineral particles in the pulp by froth flotation in an alkaline medium or by acidification of the solution followed by filtration;  (b) a stoichiometric excess of a substance supplying copper, nickel, cobalt, mercury or antimony ions is added to the filtrate from (a) to convert the oxinc into a heavy metal quinolinate which is then precipitated by raising the pH of the solution if necessary; and  (c) the precipitate is treated to remove the ions of the selected metal either by treating the precipitate with an alkaline metal sulphide in an alkaline suspension and filtering off the sulphide or by dissolving the precipitate in dilute mineral acid and subjecting the solution to electrolysis or treatment with hydrogen sulphide.  The "oxinc" is defined as 8-quinolinol or one or more of its alkyl derivatives.  Specifications 798,768 and 826,827 are referred to.
Patent GB-1310207-A (GB)
Title: Gasket-forming composition containing a 2-chloro-1,3-butadiene polymer
IPC: C09K3/10
Filed: 1971-04-19
Abstract: 1310207 Curable chlorobutadiene polymer compositions W R GRACE & CO 19 April 1971 [30 March 1970] 25550/71 Heading C3E A curable polymer composition comprises an elastomeric polymer of 2-chloro-1,3-butadiene dissolved in a volatile organic liquid, i.e. a liquid which is capable of volatilization from the composition in the course of the overall drying and curing cycle, and as a cure accelerator 0À5 to 1À5 p.b.w. of piperazine per 100 p.b.w. of the elastomeric polymer. The composition may also contain plasticizers, fillers, peptizers, lubricants, antioxidants and pigments and is suitable for use in the preparation of gaskets for aerosol mounting cups.
Patent GB-425007-A (GB)
Title: Improved glasses for the stems and flares of electric lamps
IPC: C03C3/108
Filed: 1934-09-05
Abstract: 425,007. Glass manufacture. CORNING GLASS WORKS, Walnut Street, Corning, New York, U.S.A.-(Assignees of Taylor, W. C. ; 120, East 5th Street, Coming, New York, U.S.A.) Sept. 5, 1934, No. 25589. Convention date, Oct. 23, 1933. [Class 58] Glasses which are particularly suitable for the stems and flares of electric lamps are made by using a small amount of lithia as one of the alkalis in a lead-potash-soda glass containing a small amount of alumina. The composition comprises 56 to 60 per cent of silica, 19 to 30 per cent of lead oxide, 8 to 10 per cent of potassium oxide, 2À9 to 3À5 per cent of sodium oxide, 0À1 to 1À2 of lithium oxide, and not more than 2 per cent of aluminium oxide. The composition may also include 6À5 to 7À7 per cent of barium oxide and a small amount of boric oxide. The glasses are of high electrical resistance and have low softening temperatures.
Patent GB-634884-A (GB)
Title: Improvements in or relating to apparatus for electrocuting cats
IPC: A01M23/38
Filed: 1947-09-22
Abstract: 634,884. Electrocuting animals. JONES, A. V., and VAUGHAN, G. H. Sept. 22, 1947, No. 25694. [Class 5(i)] Sponge rubber or like absorbent pads f, g in a cabinet a form opposite electrodes of a high tension circuit, and support the fore and hind legs of an animal. An insulating partition e separates the electrodes. The circuit is closed by the lid i with a catch m placed in either upper or lower openings according to the size of the animal. The cabinet may incorporate two chambers. Materials known under the Registered Trade Marks "Sorbo" and "Perspex" may be used for the pads and cabinet respectively.
Patent GB-829569-A (GB)
Title: Improvements in or relating to low-pressure mercury-vapour discharge lamps
IPC: C09K11/02
Filed: 1956-08-23
Abstract: 829,569. Discharge lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 23, 1956 [Aug. 26, 1955], No. 25784/56. Class 39(1), A low pressure mercury vapour discharge lamp is provided with a fluorescent layer 2 part of which is spaced apart from the inner wall 1 of the lamp by a non-metallic reflecting layer 3 comprising a powder having an index of refraction for visible light of more than 1À9 and a grain size of less than 1 micron, preferably about 0À3 microns. The thickness of the reflecting layer 3 is preferably less than 15 microns and about 10 microns, if of rutile titanium oxide, corresponding to about 2 mgrs. per sq. cm. A thickness of about 5 microns is also referred to. The fluorescent layer can be manganese activated halogen phosphate about 20 microns thick, corresponding to about 3 mgrs. per sq. cm. and sufficient for absorbing substantially all the U.V. radiation from the discharge. The reflecting layer 3 subtends an angle of between 270 and 180 degrees, preferably about 230 degrees, at the lamp axis, the maximum value of the luminous intensity in the direction of the arrow being about 180% and in the opposite direction about 35% of that of the standard 40 watts lamp. The total luminous flux of the lamp is more than 90% of that of a lamp without the reflecting layer. Other materials for forming the reflecting layer 3 can be zinc oxide, white lead, zinc sulphide, antimony oxide, zirconium oxide and anatase titanium oxide. Specification 603,326 is referred to.
Patent GB-500536-A (GB)
Title: Improvements in or relating to electric coils for high frequency purposes
IPC: H01F17/04
Filed: 1938-02-07
Abstract: 500,536. Transformers andinductances. FERROLYTE SOC. A.R.L., and KAUFMAN, A. Feb. 7, 1938, No. 25785. Divided out of 493,346. [Class 38 (ii)] A variable H.F inductance or trans former comprises a tube 43, of insu lating material, sup porting the coils 46, 461, 46<11> and having within a pow dered iron core u two parts, a fixed part 41 and an ad justable part 42, these parts being arranged to meet within the winding space l. The adjustable part 42 is mounted on a support 45 of insulating material which screws into the end of the tube 43 to permit of adjustment. The tube 43 has a slotted base 43 and a slotted flange 47 to permit of mounting in a recess 51 in a supporting plate 50 of insulating material, being retained in position by means of a resilient washer 52 sprung between the lugs 49.
Patent GB-817013-A (GB)
Title: Improvements in or relating to turbo-chargers for internal combustion engines
IPC: F02B37/24
Filed: 1956-08-23
Abstract: 817,013. Charge pumps. DE! LAVAL STEAM TURBINE CO. Aug. 23, 1956 [Aug. 29, 1955], No. 25834/56. Class 7(2) [Also in Group XXVI] A charge pump for a multi-cylinder I.C. engine is driven by a turbine which receives exhaust gases from the engine through a number of conduits, the gases being directed by nozzles approximately tangentially into an annular chamber which surrounds the centripetal rotor of the turbine about the entire circumference thereof. In a two-stroke engine, adjacent cylinders 78, 78<SP>1</SP> with non-overlapping exhaust phases are charged or scavenged through ports 84 by a compressor comprising compressor blading 94 on a common rotor with turbine blading 92. Exhaust gases pass through ports 82, exhaust belts 86 and nozzle passages 88 to an annular chamber 90 surrounding the turbine blading 92. The chamber 90 is of sufficient radial depth to ensure that the pulsating flow is changed to a steady vortex flow before entering the turbine blading 92. Since only one of the cylinders 78, 78<SP>1</SP> is discharging at a given instant, an ejector action occurs, preventing the pressure waves from propagating into the exhaust belt 86 of the cylinder which is not discharging. In another embodiment, in which the two or more nozzle passages of the turbine receive exhaust gases from two or more groups of cylinders of a two-stroke or four-stroke engine, the nozzle passages may be formed by pairs of nozzle blades which are pivotally adjusted, to vary the flow area, in accordance with engine speed, inlet manifold pressure or movement of the engine fuel rack. Specifications 783,448 [Group XXVI] and 792,122 are referred to.
Patent GB-1402142-A (GB)
Title: Anthraquinone dyestuff mixtures
IPC: C09B67/22
Filed: 1972-06-02
Abstract: 1402142 Disperse dye mixtures IMPERIAL CHEMICAL INDUSTRIES Ltd 13 April 1973 [2 June 1972] 25859/72 Heading C4P The invention comprises dyestuff mixtures containing by weight of the total composition (a) 65-95% of a disperse anthraquinone dye of the general formula which may contain up to 30% by weight of a disperse dye of the general formula wherein R is phenyl optionally substituted by one or more Cl, Br, OH, amino, C 1 -C 6  alkyl, C 1 -C 6  alkoxy, hydroxy C 1 -C 6  alkoxy, NC 1 -C 6  alkylamino, N,N-di-(C 1 -C 6  alkyl) amino, carbo-C 1 -C 6  alkoxy, C 1 -C 6 -alkoxycarbonyloxy or C 1 -C 6 -alkylcarbonyloxy groups (b) 5-35% of one or more disperse dyes of general formula where X and Y are C 1 -C 6 -alkyl, hydroxy- C 1 -C 6 - or C 1 -C 6  alkoxy-C 1 -C 6 -alkyl and (c) 0-15% of at least one yellow to red disperse dye. The component (c) is defined by reference to areas 1-9 inclusive of the Hue Indication Chart in the 3rd edition of the Colour Index (1971) of the S.D.C. The mixtures may be obtained by mixing the components. Component (c) may be obtained by condensing a mixture of quinizarin and lencoquinizarin with an amine RNH 2  in presence of boric acid and component (b) is obtained by condensing a mixture of quinizarin and lencoquinizarin with one or two different amines XNH 2  optionally in presence of boric acid. Examples 6 and 7 describe the use of azo dyes. The dye mixtures are used with dispersing agents to dye polyesters in navy-black shades.
Patent GB-358214-A (GB)
Title: Arrangement for converting light variations into current or potential variations
IPC: H01L31/06
Filed: 1930-08-29
Abstract: 358,214. Light-sensitive cells. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 29, 1930, No. 25862. Convention date, Aug. 30, 1929. [Classes 40 (iii) and 40 (v).] Light falling on a cell, in which the light penetrates to a contact surface between a semi-conductor b and an active electrode a to produce photo-electrons, is concentrated so far as possible. The active surface of the semi-conductor, for example, cuprous oxide, is no larger or little larger than the area of the beam of light and conforms to its shape, which may take the form of a slit or circle. In the former case the counter electrode c is a narrow metallic strip and in the latter a cross with narrow bars, Fig. 2 (not shown). The electrode is developed to a small round extension to facilitate connection to the leads. The oxide beyond the desired outline on the copper base a is removed mechanically or chemically, or may be electrically separated by a narrow deep gap in which little oxidation occurs, or the surface outside the desired area is covered with a substance which prevents oxidation.
Patent GB-616142-A (GB)
Title: Improvements in the preparation of tocopherol concentrates
IPC: A61K31/355
Filed: 1946-08-29
Abstract: Tocopherol concentrates are obtained from deodoriser sludge or a partial concentrate thereof by extraction with a liquified normally gaseous hydrocarbon, e.g. propane, ethane, propylene, butanes, butene, cyclopropane and cyclobutane and separating the tocopherol from the resulting solution by a process which may involve neutralization, chilling, extraction at or near the critical point of the hydrocarbon.  The tocopherol can be removed from the sludge batchwise or continuously.  The continuous process may be carried out in a high-pressure packed tower at the phase point temperature so that the sludge passes in countercurrent to the hydrocarbon. Preferably the sludge is subjected to high vacuum unobstructed path distillation prior to phase point temperature separation. Alternatively, the fatty acids present in the sludge may be removed by neutralization in the hydrocarbon solution.  The high melting materials may be removed from the partial concentrate by cooling. Examples are given of propane extraction followed by phase point temperature separation, neutralization and chilling.  Specification 548,731 is referred to.
Patent GB-735275-A (GB)
Title: Improved suspension for road vehicles
IPC: B60G3/26
Filed: 1953-09-21
Abstract: 735,275. Steering vehicles. GENERAL MOTORS CORPORATION. Sept. 21, 1953 [Oct. 28, 1952], No. 25934/53. Class 79(5). [Also in Group XXXII] A vehicle suspension system comprises spaced upper and lower transverse control links pivotally connecting the suspended and non-sus. pended parts of the vehicle the lines joining the axes of the pivotal connections being inclined upwardly and outwardly under a normal predetermined load, the upper link being shorter than the lower link, and the line joining the axes of the pivotal connections of the upper link being disposed at a greater angle to the horizontal than that joining the axes of the pivotal connections of the lower link. In the arrangement shown, in which each front wheel 4 is connected to a frame member 2 by upper and lower wishbone links 8 and 10 respectively, the lower link being sprung against the frame by a coil spring 40, the pivotal axes of the links at the frame member are parallel and are inclined inwardly and downwardly towards the rear of the vehicle so that the pivotal axes of the lower links 10 intersect in the medial longitudinal plane of the vehicle, pass through points disposed on the vertical centre lines of the rear wheels and, at normal vehicle loading, meet ground level at points disposed to the rear, and outside areas covered by the rear wheels. The links incline upwardly from the frame member 2 and are pivotally connected to a steering knuckle support 30 carrying a steering knuckle 36. The inclination of the links is such that if extended they would intersect at ground level on the opposite side of the vehicle. The arrangement is stated to produce progressive increases in positive wheel camber and corresponding decreases in negative camber as the steering angle increases and to reduce track variation to a minimum.
Patent GB-1056323-A (GB)
Title: Improvements in sealed magnetic read contact units
IPC: H01H36/00
Filed: 1964-06-23
Abstract: 1,056,323. Electromagnetic relays. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 23, 1964 [June 28, 1963], No. 25935/64. Heading H2B. The threshold operating current value of an assembly comprising a sealed magnetic reed contact unit, e.g. 11a, 11b, and a biasing permanent bar magnet 24 adjacent thereto is set by rotating the contact unit relative to the magnet. The threshold values of the two contact units 11a and 11b are matched in this way by the following method. The assembly of magnet 24 and contact units 11a + 11b were inserted in a test coil which was energized by a pulse which produced a magnetic flux aiding that of magnet 24 and the operating times of the units were compared on an oscilloscope. Demagnetizing pulses were then applied to the test coil and were adjusted until the operating time of the slower contact unit equalled a predetermined value. The faster contact unit was then rotated about its longitudinal axis until its operating time was the same as the slower unit. The permanent magnet was then demagnetized until the threshold operating current reached a preselected value whereupon the contact units were secured in their adjusted positions relative to the permanent magnet by an epoxy resin. The sequence of the various matching operations may be varied, and the faster or slower contact unit may be rotated depending on whether the reeds are initially edge-on or face-on to the magnet. In Fig. 1, the envelopes of the contact units are seated in recesses 44 formed in end plugs 38 of the coil former.
Patent GB-616205-A (GB)
Title: Improvements in and relating to centrifugal impellers
IPC: F04D29/28
Filed: 1946-08-29
Abstract: 616,205. Making centrifugal impellers. AKT.- GES. BROWN, BOVERI, & CIE. Aug. 29, 1946, No. 26019. Convention date, Sept. 15, 1945. [Class 83 (ii)] [Also in Group XXVI] The cover disc 3 and the blades 2 are cast together in one piece and the hub disc (not shown) is then fixed to the blades. The blades and cover disc may be of cast steel. The fixing of the hub disc is done by riveting, welding or soldering.
Patent GB-991805-A (GB)
Title: Toilet tissue
IPC: A47K10/16
Filed: 1962-07-09
Abstract: 991,805. Toilet paper. S. R. ROSENTHAL. July 9, 1962 [July 12, 1961], No. 26207/62. Drawings to Specification. Heading A4N. In order to assist the retraction through the anal sphernter of protruded or prolapsed parts of the anal canal after defaecation, an absorbent toilet tissue has a non-absorbent smooth and soft central area which can be slid over the displaced tissues without causing irritation or abrasion. The central area may be provided with a wax, resin or clay glaze or a separate sheet of plastic such as "Saran" (Registered Trade Mark) wrap or a layer of lubricant such as petroleum jelly. The tissue may have a conical form or may be a flat sheet with a central protruberance which enters the rectal canal.
Patent GB-1508524-A (GB)
Title: Flash evaporator
IPC: C02F1/06
Filed: 1976-06-24
Abstract: 1508524 Multi-stage flash evaporator R SAARI 24 June 1976 26231/76 Heading BIB A multi-stage flash evaporator (one embodiment thereof being shown in Figs. 3 and 5) comprises a horizontal elongated shell 10' divided into stages by partitions 13' which are spaced from the bottom of the shell 10' to provide openings for flow of liquid, each stage being provided with an inclined baffle 15 which contacts the bottom of shell 10' and the partition 13' at the upstream end of the stage, and vertical baffles 16 extending the full length of the stage and upwardly from the baffle 15. The apparatus shown also comprises baffles 17 and 20. Liquid entering a stage flows into space 23 below baffle 15 upwardly and over baffles 16 into space 24 above baffle 15 from which space liquid flows to the next stage. Vapour condenses on tubes 11', the condensate being removed via troughs 18'. In Fig. 6 (not shown) the shell is open at its top and is mounted in a cylindrical housing in which the condenser tubes are located below the shell. Each inclined baffle extends the full width of a stage and is provided with two slots from the longitudinal edges of which the vertical baffles extend upwardly.
Patent GB-815433-A (GB)
Title: Plastic stencilled material and process and means for stencilling
IPC: D06B11/00
Filed: 1955-09-13
Abstract: 815,433. Coating webs. STEEN, C., DONAHUE, E. L., and DONAHUE, M. S., [trading as D & S PROCESSING CO.]. Sept. 13, 1955 [Sept. 13, 1954], No. 26234/55. Class 140. [Also in Groups XV and XVI] A machine for continuously applying a plastic pattern to the surface of permeable material, e.g. cloth, plastic or paper, comprises a driven conveyer for the material, a rotatable, hollow, apertured stencil containing liquid plastic in contact with the material and driven thereby, a doctor blade within the stencil extending to the inner surface to cut off the plastic at a predetermined height and elongated controlled heating means surrounding a conveyer beyond the stencil. Material 3 is fed from a reel 1 round idler rollers 4, then between an adjustably mounted roller 11 driven by a motor 12 and a cylindrical stencil 14. The coated material is conveyed by an endless conveyer belt 34 through an oven 8 with inlets 37 for heated air then to cooling and storage racks. The stencil is mounted between rollers 15 rotatably mounted in brackets 17, the stencil being rotated by the material 3. The stencil comprises a cylindrical drum having apertures 21 through which liquid plastic 28 contained between a fixed blade 22 and a curved knife 24 passes to the material. The fixed blade is supported by a shaft in a bracket 23<SP>1</SP> and the knife blade is rotatably mounted on brackets 27. The liquid plastic may comprise dioctyl phthalate or tricresyl phosphate with polyvinyl chloride.
Patent GB-732523-A (GB)
Title: Automatic cigarette lighting machine
IPC: G07F11/72
Filed: 1953-09-23
Abstract: 732,523. Cigarette dispensers and lighters. DEVADOSS, S. D. P. K. Sept. 23, 1953 [Sept. 23, 1952], No. 26262/53. Class 18. [Also in Group XI] A cigarette dispenser comprises means for lighting each cigarette by applying a heater and suction'to it, the various elements of the dispenser being operated from cams on a motor-driven shaft. The motor (not shown) is started in known manner by a push button or by inserting a coin, and rotates the cam shaft 5 until the delivery of a cigarette for withdrawal breaks the motor circuit. Cigarettes 11 are each fed from the base of a column 7 into a rotatable holder 8 by a reciprocating pusher 18 operated by a cam 13. Rubber lined "lips" 21 on pinions 22 actuated by a cam 31 engage one end of the cigarette and an adjacent suction tube 20, a suction pump](not shown) is started, and an electric heater 19 brought into contact with the other end. The lips and heater are brought clear of the cigarette, and the holder is rotated through 90 degrees by Geneva mechanism 38-40 to bring the cigarette into the vertical position. A lever 46 actuated by a cam 44 engages pins 51 on a vertically reciprocating slider 49, the slider carrying a rod 52 in contact with the base of the cigarette. Upward movement of the slider presents the cigarette for removal from the dispenser.
Patent GB-1278091-A (GB)
Title: An exhaust system for an internal combustion engine
Inventor: ARENZANA PABLO MARIN
IPC: F01N/
Filed: 1969-05-23
Abstract: 1278091 I C engine exhaust extractors P M ARENZANA 23 May 1969 [5 June 1968] 26421/69 Heading F1B The downstream end of an exhaust pipe 4 has an exhaust extractor in the form of two truncated cones 1 and 2 secured thereto by means of clips 5a, 5b and radial vanes 3a, 3b.