baber/WOPTO huggingface dataset:
Patent GB-987295-A (GB)
Title: Improvements in gas-blast electric circuit interrupters
IPC: H01H33/867
Filed: 1962-11-30
Abstract: 987,295. Gas-blast switches. GENERAL ELECTRIC CO. Nov. 30, 1962 [Dec. 4,1961], No. 45357/62. Heading H2B. In a circuit-breaker, generally similar to that of Specification 842,986, a gas-blast transfers one terminal of an arc drawing between the circuit-breaker contacts 14, 16 to a nozzle eletrode 38 and then through the nozzle electrode on to a downstream arcing electrode 48, the nozzle electrode 38 being slotted to cause the current flowing from the arc terminal on the electrode to flow radially outward and so provide magnetic forces in a direction to assist in driving the arc into the nozzle. The slots may extend perpendicularly to a reference plane normal to the longitudinal axis of the nozzle as shown. Alternatively, the slots may extend at acute angles to the plane to cause the arc terminal to move circumferentially about the nozzle during the interval in which this arc terminal remains on the nozzle electrode. An upstream arcing electrode 70 is provided and may have a central passage 120 to prevent the upstream arc terminal rooting at the centre of the electrode 70. In the double-break arrangement shown, a low-impedance path exists between the upper parts of the nozzle electrodes 38, 38a due to an aluminium member 41, and a further low-impedance path is provided between the lower parts of the nozzle electrodes by a conductive ring 114 and arms 112, 112a to prevent the current between the electrodes 38, 38a flowing through the casting 33 in a path which would result in neutralizing the forces referred to above.
Patent GB-1194268-A (GB)
Title: Improvements in or relating to Corpuscular Beam Apparatus Magnetic Lens Pole Piece Arrangements.
IPC: H01J37/141
Filed: 1967-10-05
Abstract: 1,194,268. Discharge apparatus. MAXPLANCK-GES. ZUR FORDERUNG DER WISSENSCHAFTEN E.V. 5 Oct., 1967 [24 Feb., 1967], No. 45411/67. Heading H1D. In a corpuscular beam apparatus, e.g. an electron microscope, wherein two polepieces are held together by non-magnetic spacing means to form a unit adapted to be removed from the apparatus, one of the polepieces being adjustable transverse to its axis across a friction surface and clamped by clamping screws parallel to the axis, friction-reducing means are provided between the heads of the clamping screws and those surface regions of the adjustable polepiece or its supporting member adjacent the screw heads to minimize any transverse forces produced by the screws. In Fig. 1 polepiece 5 is mounted on an annular bearing member 9 which is clamped by screws 11 on to a friction bearing surface 12 or a spacing member 10 carrying the second polepiece 6. Ball bearings 16 in a resilient cage 17 are mounted between bearing plates 14 and 15 disposed between the head of each screw 11 and the surface of the member 9. In an alternative construction (Figs. 2-5, not shown), a washer of plastics material is used instead of a ball bearing. The assembly may also include other elements such as a stigmator, a diaphragm, or a specimen table. The polepieces may be adjusted in accordance with an analysis made of test recordings performed with the unit in the microscope, the unit being removed to make the adjustments with the aid of a photo-optical enlarging facility.
Patent GB-1495016-A (GB)
Title: Method and apparatus for controlling the amount of oil in water to be discharged from a marine vessel
IPC: B63B13/00
Filed: 1975-10-14
Abstract: 1495016 Discharging waste oil from marine vessels J Z C PAVLOU 14 Oct 1975 [21 Oct 1974] 45518/74 Heading B7M Oily water to be discharged from a marine vessel flows through a pipe 40, 44 into which flows clean water ballast through a pipe 42, the mixture being discharged to the sea through a discharge pipe 46 providing the amount of oil in the mixture does not exceed a pre-set limit at which a valve 8 closes. The amount of oil in the mixture is measured by an ultra-violet sensor (not shown) supplied with a sample of the mixture through a probe 38. If the amount of oil exceeds the limit the valve 8 in the discharge pipe 46 is automatically hydraulically actuated. To decrease the amount of oil a remotely controlled hydraulically actuated valve 14 is operated to increase the flow of ballast water. A graphical record of the amount of oil discharged is obtained from readings transmitted by the sensor.
Patent GB-947626-A (GB)
Title: A method of and apparatus for the continuous casting of metals
IPC: B22D11/11
Filed: 1961-12-20
Abstract: 947,626. Continuous casting. COMPAGNIE DES ATELIERS ET FORGES DE LA LOIRE ST. - CHAMOND - FIRMINY ST.- ETIENNE-JACOB HOLTZER. Dec. 20, 1961 [Dec. 20, 1960; March 8, 1961], No. 45730/61. Heading B3F. [Also in Division E1]  Pouring apparatus in a continuous casting machine comprises a hollow body 2 with an inclined base from each end of which extend molten metal inlet and outlet tubes 3 and 4 respectively. Tube 3 has at its lower end a sleeve 6 of a refractory material which is immersed in the molten steel 7 in a tundish 1. Tube 4, whose end is below the level of the molten steel in the tundish so as to promote a syphon effect, has an induction heating device 13 and a suitable pouring nozzle 8 located about the mould 11. The body 2 is also provided with a heating device in the form of a burner 21 and a vacuum producing means in the form of an extractor 15. Neutral gas, e.g. argon or nitrogen is supplied via pipe 24 to the joint 25 between the tube 3 and sleeve 6 to regulate the flow of steel from the outlet of tube 4 and to assist in degasifying the steel. In a modification the neutral gas and colza oil for lubricating the mould are admitted from pipes 44 and 43 respectively at the connection between the outlet pipe and mould said connection being provided with a suitable gas-tight seal 42. The gas pressure is so regulated to prevent the liquid steel rising into the annular chamber 45 in which the ends of said pipes 43 and 44 are located, at the same time this pressure regulates the flow of oil from the pipes 43.
Patent GB-1429917-A (GB)
Title: Television camera tubes
IPC: H01J29/02
Filed: 1974-10-23
Abstract: 1429917 Cathode-ray tubes HEIMANN GmbH 23 Oct 1974 [12 Dec 1973] 45912/74 Heading H1D In a storage or camera tube (e.g. vidicon), silicon multi-diode target 6 is attached by low vapour pressure solder or welding 7 directly or through an intermediate ring (not shown) to signal ring 5, itself glass sealed to the slightly flared end of tube 1 and glass face-plate 4. Anode 2 with held mesh 3 is placed adjacent to target 6, with beam generator and scanning means beyond (not shown).
Patent GB-1150594-A (GB)
Title: Circuit Arrangement to Supervise the Loop Resistance of a Telecommunication, particularly Telephone Line
IPC: H04M3/22
Filed: 1966-10-14
Abstract: 1,150,594. Resistance testing. INTERNATIONAL STANDARD ELECTRIC CORP. Oct. 14, 1966 [Oct.20, 1965], No.45945/66. Heading G1U. [Also in Division H4] The loop resistance R x  of a telecommunication line is supervised by connecting it to two load terminals in a network in which two resistors R are in series between an A. C. source V1 and the loop resistance, resistive potential dividers R1, R2 and R2, R1 being cross coupled between the ends of the two resistors R. If the loop resistance is of a particular value R o , no output at the terminals a, b on the potential dividers is obtained. Any change in the loop resistance R x  in excess of R o  produces a signal output (V1x) in anti-phase with the input, while if R x  falls short of R o  the output is in phase with the input. These alternative conditions are detected by gate or coincidence circuits which produce a '1' when Rx < R o  and '0' when R x  > R o . The system may be used for providing ringing tone trip when a called subscriber lifts his handset by arranging that the ringing voltage provides the supply V1. The lifting of the handset changes the loop resistance for the ringing voltage from high to low, and detection of the change operates the trip to cut-off the ringing current.
Patent GB-1350499-A (GB)
Title: Process and apparatus for continuous steel-making
IPC: C21C5/56
Filed: 1971-10-04
Abstract: 1350499 Continuous steel making CONSILIUL NATIONAL PENTRU STIINTA S I TEHNOLOGIE 4 Oct 1971 [8 Oct 1970] 46039/71 Heading C7D Molten iron is desulphurized in a mixer, or in a trough leading thereto, and is then atomized with air at a pressure of 2 to 8 atmospheres to remove manganese, silicon, phosphorus and residual sulphur,together with partial elimination of carbon, the operation being carried out at 1320 -1450‹C. In a further vessel the metal is then decarburized to 0À2 - 0À8 % carbon at 1520 - 1670‹ C by oxygen blast and dilution with material such as scrap, sponge iron, iron oxide or pre-reduced oxide pellets, after which it is separated from slag, finally deoxidized, and alloyed if necessary. If desired vacuum treatment may precede final deoxidation. As particularly described, iron is fed to mixer 1 where reagents such as lime, sodium carbonate, calcium carbide or aluminium are introduced in a stream of nitrogen or methane. Iron leaving the mixer is atomized by air jets 10a, 10b, with fluxes being added at 11a, lib, the resultant slag flowing off through extended trough 17 while iron flows to decarburizing chamber 16 where it is oxygen blown by lances 20. The resultant emulsion flows into separating chamber 23, from where slag is returned to the atomizing chamber 12, while iron passes through the vacuum degassing vessel 32 (shown inverted for clarity), into the final deoxidation and alloying chamber 34. The decarburizing vessel 16 preferably has a capacity at least fifteen times the output per minute.
Patent GB-1147827-A (GB)
Title: Improvements in and relating to the testing of high voltage electric cables
Inventor: PAPADOPULOS MICHAEL SAVVAS
IPC: G01R31/12
Filed: 1966-10-14
Abstract: 1,147,827. Cable terminations. BRITISH INSULATED CALLENDER'S CABLES Ltd. 6 Oct., 1967 [14 Oct., 1966], No. 46055/66. Heading H2E. In a method of preparing a high voltage cable end for testing, a tubular test end of moulded synthetic resin, having a liquid container mounted thereon, is applied to the exposed end of the cable core dielectric directly or over a tube of insulating material applied to the dielectric, and the region between dielectric and the test end is subjected to insulating liquid under pressure. As shown, Fig. 1, a test end 1 of the kind described and claimed in Specification 1,147,826 is applied to the exposed dielectric 24 of a cable end, a paper roll 22 being interposed between the dielectric and the bore of the test end. An oil container 12 comprises a base portion 14 of P.V.C. which is bolted to the test end, and an upper cylindrical part 19 which is bolted to the base portion. An oil pressure cover 30 comprises a frusto-conical portion 33 having an annular flange 31 by means of which it is secured to the test end to seat in a sealed fashion on the tapering portion 5 thereof, and a cylindrical portion 34 which terminates in an end-cap 35 having one or more pipes 36 therethrough. Cable screen 25 is connected to the metal ring 10 on the test end by means of wrapped wire 26. Container 12 is then filled with oil (outlet pipe 21 being plugged) and the oil is admitted via pipe(s) 36 into cover 30 at a pressure of 30 p.s.i. In an alternative embodiment (Fig. 2, not shown), a fluid-tight chamber (53) is formed between the cable sheath 23 and metal ring 10 and evacuated, to cause oil introduced into container 12 to be drawn down between cable dielectric and test end bore.
Patent GB-1287176-A (GB)
Title: Curable compositions for making high temperature stable -sh terminated polysulfide polymers
IPC: C08L81/04
Filed: 1970-09-29
Abstract: 1287176 Curing polysulphide polymers THIOKOL CHEMICAL CORP 29 Sept 1970 [10 Nov 1969] 46374/70 Heading C3R A curable composition comprising a thiolterminated liquid polymer, an organic peroxide curing agent and cupric abietate or 2,4,6-tri- (dimethylaminomethyl) phenol to activate the curing agent, is stabilized by adding an alkaline earth metal oxide e.g. calcium, magnesium, strontium or barium oxide. The polymer has the formula HS-(-RSS-) x -RSH where R is an alkylene, oxahydrocarbon or thiahydrocarbon and x is from 3 to 100. The peroxide is cumene hydroperoxide, tertiary butyl hydroperoxide, 2,5-dimethylhexane-2,5-dihydroperoxide or 2,5- dimethyl-2,5-di(benzoylperoxyl) hexane. Examples are given of compositions which also contain calcium carbonate and chlorinated diphenyl. Uses.-as a sealant and for coating.
Patent GB-1273011-A (GB)
Title: Improvements in or relating to glass
IPC: C03C4/10
Filed: 1969-09-23
Abstract: 1,273,011. Heat absorbing glass. CARLZEISS-STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN.]. 23 Sept., 1969 [25 Sept., 1968], No. 46865/69. Heading C1M. An infra-red absorbing glass for the radiation range 1À0 to 2 Ám. contains ferrous oxide and optionally cobalt oxide. The glass-forming batch preferably contains 1À5 to 3À5% Fe 3 O 4  by weight with or without 0À7 to 1À0% CaO. The batch also contains 45 to 75% of SiO 2 , up to 10% B 2 O 3 , up to 5% Al 2 O 3  and 15 to 20% of Li 2 O 3 Na 2 O or K 2 O. The glass may further contain 14-17% PbO. The batch may include small quantities of ZnO, BaO, F, NG 4 Cl, NaCl, sugar, or wood charcoal. The glass is stated to be suitable for sealing articles of nickel-manganese-iron and nickel-chromiumiron alloys. The coefficient of expansion of the glasses are in the range 91À5 to 94À9 x 10<SP>-7</SP> per ‹C. in the temperature range 20-300‹ C.
Patent GB-1240913-A (GB)
Title: Production of improved lubricating oils
IPC: C10G65/04
Filed: 1969-09-26
Abstract: 1,240,913. Refining lube oil stocks. TEXACO DEVELOPMENT CORP. 26 Sept., 1969 [3 Oct., 1968], No. 47418/69. Heading C5E. A lube oil charge stock is solvent extracted to reduce its aromatics content, catalytically hydrorefiried and then dewaxed. Suitable charge stocks are fractions obtained from a vacuum or atmospheric distillation overhead or from an atmospheric or vacuum residue which has been deasphalted with methane, propane or butane. The solvent extraction is effected at 150-250‹ F. using a countercurrent of furfural, phenol, dichloroethyl ether or N- methyl pyrrolidone. The raffinate is stripped with steam and then refined with hydrogen at 600-900‹ F. and 800-5000 p.s.i.g. using a catalyst comprising Cr, Mo, W, Fe, Co and/or Ni on a support of alumina, silica, magnesia and/or zirconia, e.g. 3-10% Co or Ni and 10-30% Mo or W on alumina. The effluent from the hydrorefining zone is dewaxed either by contacting the entire effluent with a hydrogenating catalyst supported on a decationized mordenite at a temperature of 450-950‹ F. and a pressure of 100-1500 p.s.i.g. or by solvent dewaxing with a mixture of acetone or methyl ethyl ketone and benzene or toluene or a mixture of benzene and n-butyl ketone.
Patent GB-474435-A (GB)
Abstract: 474,435. Blow-lamp burners. LEVIT, L. Jan. 24, 1936, No. 2327. Void. Convention date, Jan. 24, 1935. [Class 75 (i)] The flame from a wick 7 mounted in a tubular container 1 vaporizes the fuel at the top of a container 9 and the vapour burns on issuing from a nozzle 14a. The lower part of the container 9 contains absorbent material 11 to the level of a perforated gauze-covered partition 9b. The container 1 is also packed with cottonwool 7a or other absorbent material. The containers 1, 9 are closed at the bottom by screw caps 1b, 9a. A nozzle 14d with a smaller orifice may screw over the nozzle 14a. The containers 1, 9 may be connected by distance pieces 1d or be fitted with adjustable sleeves slidable relatively to one another. An igniter for the wick 7 may be attached to the container 1.
Patent GB-1527758-A (GB)
Title: Process for recovering ruthenium
IPC: C01G55/00
Filed: 1975-11-18
Abstract: 1527758 Recovering ruthenium JAPAN CARLIT CO Ltd 18 Nov 1975 [10 Dec 1974 (3)] 47517/75 Heading C1A A process for the oxidizing distillation of a ruthenium-containing substance soluble in H 2 O, acidic and basic solutions comprises oxidizing the substance in a non-reducing acid solution of acid concentration 1-90 wt. per cent and containing also 1-2000 parts by wt. of oxidizing agent per part of ruthenium as metal, and distilling the resulting ruthenium tetroxide at 50-90 C. and 90-700 mmHg in a stream of stabilizing gas. The oxidizing acid solution may be a mineral acid, acetic acid or trifluoroacetic acid containing a per salt or a peroxide. The stabilizing gas may be 0 2 , N 2 , Cl 2  or C0 2 . The distillate may be collected in H 2 0, an acid or a base and reduced with a C 1-4  alcohol. The initial soluble ruthenium-containing substance may be obtained by treating an insoluble material with an alkaline fusion mixture consisting of an alkaline compound plus 10-70 wt. per cent of an inorganic peroxide at 250-750 C. and dissolving the fusion product in acid, e.g. mineral acid, HCOOH or CH 3 COOH, of concentration 2-50 wt. per cent.
Patent GB-973540-A (GB)
Title: Improvements in and relating to an indicating device for dictating machines, a burnerhead for such device, and a dictating machine comprising said indicating device
IPC: G11B27/34
Filed: 1962-12-18
Abstract: 973,540. Recording-apparatus. ZEUTHEN & AAGAARD A. S. Dec. 18, 1962 [Dec. 22, 1961], No. 47775/62. Heading G1J. [Also in Division G5] In a dictating machine the position of a soundrecording head relative to a sound-record carrier is indicated by marks 19, 20 produced on a strip 2 of thermo-sensitive paper moved relative to a recording-head 3 located behind the strip 2 which is guided by a transparent guide 1. Through the guide 1 can be observed the marks 19, 20 produced by heat generated when an electric current is passed through parts 13, 16 respectively of a heating wire embracing the ends of insulating plates 4, 5 and passing round a rivet 14 holding the plates together. Current applied through lead 18 and either lead 11 or 17 reaches the wire 13 through conducting paths 6, 7, 8 and 9 "printed" on the faces of plates 4, 5.
Patent GB-992592-A (GB)
Title: Improvements relating to diaphragm pumps
Inventor: ALLEN RONALD NOEL
IPC: F04B43/02
Filed: 1961-12-19
Abstract: 992,592. Diaphragm pumps. ARTHUR LYON & CO. (ENGINEERS) Ltd. Dec. 19, 1962 [Dec. 19, 1961], No: 48027/62. Divided out of 992,591. Heading F1A. The subject matter of this specification is disclosed in Specification 992,591 but the claims are directed to the second diaphragm being fitted with a pressure relief valve.
Patent GB-1176059-A (GB)
Title: Improvements in or relating to Tufted Carpets.
IPC: D05C17/00
Filed: 1967-10-24
Abstract: 1,176,059. Laminated carpet backing. HERCULES Inc. 24 Oct., 1967 [24 Oct., 1966; 18 Sept., 1967], No. 48365/67. Heading B5N. [Also in Division D1] A tufted carpet has as its primary backing material a film-reinforced non-woven fabric which comprises a synthetic thermoplastic film into which a fibrous staple web has been calendered. The backing may be produced by placing a layer or layers of staple fibres in contact with one or both faces of a thermoplastic film, softening the film, and embedding the fibres into the film by calendering. The fibres may be laid randomly on the film or may be carded to orient the individual fibres; the fibres in this case being arranged so that fibres of adjacent fibre layers are cross-laid. The fibres may be polypropylene, polyethylene, rayon, nylon, polyester, or acrylic fibres or combinations thereof, and the films may be polyethylene, polypropylene, or an ethylene/propylene block copolymer. The fibres may be calendered into the film using a heated roll. In making the carpet, polypropylene yarns are tufted into the backing, and the tufted material is back-scoured in boiling water, and tenter dried, latex is applied to the back thereof to adhere the tufts to the backing, and the carpet is tenter cured.
Patent GB-1021265-A (GB)
Title: Lamp housing for photographic enlarging and printing devices
IPC: G03B27/54
Filed: 1962-12-28
Abstract: 1,021,265. Lamp housings. GEVAERT PHOTO-PRODUCTEN N.V. Dec. 28, 1962 [Jan. 28, 1962], No. 48857/62. Heading F4R. [Also in Division G2] A lamp house for enlarging and printing devices is formed by or incorporates a reflector having a plurality of reflecting surfaces so arranged that when a light source is reflected without passing through a diffuser, a plurality of light spots corresponding to the reflecting surfaces is formed on an image forming plane, the light spots in the central area being more widely spaced than those in the marginal areas. The reflector consists of a bent strip 26 having five reflecting planes, one of which is at rightangles to the optical axis, and two strips at rightangles to the strip 26, each made up of four reflecting planes and having one end inserted in a slot at the inner end of the strip 26. An iodine lamp 13 passes through openings 34, 35 in the strip 26, the ends engaging in contacts 32, 33 in the housing 29 of the lamp. A frame 14 is mounted on the front of the housing and carries diffusing plates 15, 16 and a heat absorbing filter 17. Cooling air passes over the filter 17 between the plates 15, 16.
Patent GB-1165916-A (GB)
Title: Fluorine-Containing Organic Salts
IPC: C07C51/15
Filed: 1966-09-30
Abstract: 1,165,916. Salts of fluorinated carbonyl compounds. ALLIED CHEMICAL CORP. 3 0  Sept., 1966 [1 Oct., 1965], No. 49118/68. Divided out of 1,165,912. Heading C2C. Salts of the general formula wherein each of R and R<SP>1</SP> represents a fluorine atom of a perhaloalkyl radical in which each of the halogen atoms is F or Cl and in which at least one fluorine atom is attached to each carbon atom, and M represents Ag, K, Rb, Cs or a tetraalkylammonium ion, are prepared by reacting a carbonyl compound R-CO-R<SP>1</SP> with a fluoride MF under anhydrous conditions in the absence of other substances which react with the the carbonyl compound, the fluoride MF or the organic salt. The salts in which M is a tetraalkylammonium ion may also be prepared from the potassium salts by reaction with atetraalkylammonium chloride or perchlorate. The invention also comprises salts of the above general formula in which R and R<SP>1</SP> are each perhaloalkyl radicals as defined above containing 1 to 8 carbon atoms. 2 - Trifluoramethyl - perfluoropentan - 3 - one is prepared by reacting perfluoropropylene with perfluoropropionyl fluoride in acetonitrile using caesium fluoride as catalyst. Perfluorooctanoyl fluoride is prepared by reacting the corresponding acid chloride with potassium fluoride in acetonitrile.
Patent GB-1384559-A (GB)
Title: Dispensing containers
IPC: B65D83/04
Filed: 1972-10-25
Abstract: 1384559 Dispensing containers CENTROMINT CO (ESTABLISHMENT) 25 Oct 1972 [9 Nov 1971] 49152/72 Heading B8P [Also in Division F2] In a container for dispensing articles singly and having a spring urging the articles upwardly, the spring is initially contained between a thrust piece 6 and an abutment 7 a stud 12 with a head 13 holding the spring compressed. After assembly into the base of the container the stud 12 is released by rotation so that its head 13 passes through an aperture 14 and the spring released. In another embodiment (Fig. 5) the head 13 is confined to one side only of the stud. Projections 17, 18 ensure positional orientation of the members 6, 7 and projections 19 facilitate assembly of the spring element. The abutment 7 is held in the container by studs (20, Fig. 3) on the abutment engaging holes (21) in the container.