baber/WOPTO huggingface dataset:
Patent GB-528051-A (GB)
Abstract: 528,051. Polymerization products. DU PONT DE NEMOURS & CO., E. I. April 19, 1939, No. 11842. Convention date, April 26, 1938. [Class 2 (iii)] Polysulphones are prepared by reacting sulphur dioxide with a mixture of at least one mono-olefine hydrocarbon, which contains at least two hydrogen atoms attached to the unsaturated carbon atoms and where the ethylenic linkage is within two carbon atoms of the end of the carbon chain, and a compound of the formula wherein R is hydrogen or alkyl and wherein A is a negative substituent. Suitable hydrocarbons include ethylene, propylene, n-butylene, isobutylene, 1-pentene, 2-pentene, 1-hexene, 1- octene, 1-nonene, cyclohexene, 3-methylcyclohexene ; suitable other compounds include methacrylic nitrile, methacrylic acid, methacrylic esters such as methyl methacrylate, acrylic esters such as methyl acrylate, vinyl acetate, methyl vinyl ketone and styrene ; suitable catalysts include ultra-violet light, hydrogen peroxide, dibenzoyl peroxide, ascaridol, acetyl benzoyl peroxide, dibutyryl peroxide, dilauryl peroxide, acetone peroxide, urea peroxide, succinic acid peroxide. In examples (1) propylene, sulphur dioxide and methyl methacrylate, vinyl acetate, vinyl methyl ketone, methacrylic nitrile, methyl acrylate or styrene are reacted in the presence of benzoyl peroxide, ascaridol and ethanol (7) n-butylene, sulphur dioxide and methacrylic acid or methyl methacrylate are reacted in the presence of benzoyl peroxide and ethanol (9) n-butylene, sulphur dioxide and vinyl acetate are reacted in the presence of ascaridol. The products may be used in the manufacture of coating compositions.
Patent GB-1033290-A (GB)
Title: Improvements in mineral insulated electric cables
Inventor: MCCLEERY JAMES ALEXANDER
IPC: H01B7/16
Filed: 1964-12-31
Abstract: 1,033,290. Mineral insulated cable. BRITISH INSULATED CALLENDER'S CABLES Ltd. April 7, 1965 [Dec. 31, 1964], No. 53018/64. Heading H1A. Certain mineral insulated thermocouple cables, particularly those heavy sheaths of stainless steel or nickel are subject to embrittlement of the thermocouple conductors when heated, for example during welding or calibration processes. The cable of the invention avoids this by lining the sheath with stainless steel or with an alloy having the following composition, nickel not less than 72%, chromium 14 to 17%, iron 6 to 10% and only small percentages of carbon, silicon, magnesium, copper and sulphur. The invention is stated to be particularly applicable to nickel/chromium and nickel/aluminium conductors.
Patent GB-1370476-A (GB)
Title: Filtration apparatus
IPC: B01D25/21
Filed: 1971-11-16
Abstract: 1370476 Filter press IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Nov 1972 [16 Nov 1971] 53088/71 Heading B1D A filter press frame (Fig. 2) and plate (Fig. 3) are each formed of metal reinforced rubber. The plate and frame are designed to allow flushing of the filter chamber to remove cake therein without any need to open the filter press. The frame comprises an open rectangular box structure having through passages 7, 8 which do not communicate with the interior of the frame and through passages 1, 5 in flanges 15 which do communicate with the frame interior by ducts 6. The filter plate is a flat rectangular plate of increased thickness around the edges and having numerous raised projections 21 across its surface to provide a drain for filtrate. Each corner has a through passage corresponding to the passages 7, 8 in the frame, two of which 9, 10 communicate by passages 11, 12 with the filtrate surface of the plate. The through passages corresponding with the passages 1, 5 of the frame do not communicate with the plate surface. When making up the press the plates are arranged so that the passageways 9, 10 occur alternately on each side of the centre line of the press. In use, suspension is admitted through passageway 1, passageways 8 and 5 being closed and passageways 7 open. Filtrate passes through the filter cloth onto the plate surface and is removed by ducts 11 and passages 9 and 7. Cake builds up in the interior of the frame. When the cake chamber is full, excess liquid is blown out by compressed air admitted through passageway 1. The cake is then washed by water admitted through passage 9, the water leaving via passage 10. Then to clean the cake chambers, passageway 5 is opened and liquid admitted through passageways 1 and 9, the cake being washed out through passageway 5.
Patent GB-1262468-A (GB)
Title: Improvements in or relating to fluid mixing devices
Inventor: BROWN JOHN ALEXANDER
IPC: B29B7/74
Filed: 1968-11-09
Abstract: 1,262,468. Mixing device. BIBBY CHEMICALS Ltd. 30 Oct., 1969 [9 Nov., 1968], No. 53216/68. Heading B1C. A mixing device suitable for mixing polyurethane foam-forming fluids comprises a casing 1 provided with a bore 2 through which the fluids to be mixed are passed, the bore having at least one frusto-conical chamber 5 with a stub pipe entrant portion 19, and a deflecting member 7a or 7b arranged in the chamber to deflect the flow of fluid from the stub pipe along a path between the pipe and skirt 10 and between skirt 10 and the walls of the chamber. The skirt may be spaced from the base of recess 11 as shown; alternatively, it could contact the base, the fluid flowing through perforations in the skirt. The deflecting member may be provided with a flange 15 having through-holes 16 and/or skew-holes 17 to promote swirling, and its downstream face may be conically profiled. The width of the bore may be wider at the outlet end 4 than at the inlet end 3. The casing may be constructed of screwed-together parts between which the deflecting member is clamped. Foaming may be assisted by the introduction of a gaseous fluorocarbon via duct 3c.
Patent GB-1135217-A (GB)
Title: Production of titanium tetrachloride
IPC: C01G23/02
Filed: 1965-12-15
Abstract: 1,135,217. Titanium tetrachloride. E. I. DU PONT DE NEMOURS & CO. 15 Dec., 1965 [17 Dec., 1964], No. 53223/65. Heading C1A. A process for purifying TiCl 4  comprises heating a mixture of crude TiCl 4  containing vanadium impurities with an organic reagent for 2 minutes to 2 hours at 90-150‹ C., optionally contacting the mixture with further crude TiCl 4  and passing the resultant slurry over the heat transfer surfaces of a distillation vessel at 0À05-50 ft./sec. to distil off pure TiCl 4 , preferably until 95% has been distilled. Alternatively the organic reagent may be heated with pure TiCl 4  and the mixture contacted with crude TiCl 4  before distillation. The organic reagent should contain one or more chains of -CH 2 - groups and may be an animal oil, cottonseed oil, tall oil, lubricating oil, paraffin wax, petroleum tar, oleic acid, linoleic acid, Na stearate, Na oleate, Na palmitate, Na xanthate, fatty alcohols, polyethylene, polyolefins, or rosin, but is preferably a powdered soap in amount 0À05-5% by wt. A nucleating absorbent such as activated carbon, diatomaceous earth, silica aerogel, pyrolytic or colloidal SiO 2 , alumina, carbon black, titania, coke, coal or a powdered metal may also be present in the slurry during distillation.
Patent GB-1400876-A (GB)
Title: Calcium silicate material
IPC: C04B28/18
Filed: 1972-11-20
Abstract: 1400876 Expanded calcium silicate; concretes DYCKERHOFF ZEMENTWERKE AG 20 Nov 1972 [21 Dec 1971 9 Sept 1972] 53588/72 Headings C1H C1J and C1A An expanded calcium silicate comprises particles having a grain density of below 1À5 g./cc. The particles have the composition in wt. per cent: 20-55 CaO, 27-60 SiO 2  and 0-27 Al 2 O 3  and have an external vitreous sealing skin and an inner structure comprising numerous small bubbles separated by thin walls. The calcium silicate may be used as a filler in cement to form gas concrete or used to prepare light-weight silica concretes by autoclaving with lime.
Patent GB-1358088-A (GB)
Title: Oil pressure tank
IPC: F15B1/26
Filed: 1971-11-18
Abstract: 1358088 Hydraulic accumulators PIRELLI GENERAL CABLE WORKS Ltd 25 Oct 1972 [18 Nov 1971] 53592/71 Heading F1D A hydraulic accumulator comprises a vessel 10, Fig. 1, for receiving oil under pressure, containing a stack of gas-filled cells 12 with spacing means 14 between the cells to facilitate the escape of gas from between the cells during degassing. The spacers may comprise rings, Fig.2, with radial holes 18, flat discs with slots, Fig.3, (not shown), or plain or corrugated strips. Alternatively the faces of the cells may be profiled with spiral corrugations, raised rims or bosses.
Patent GB-1165049-A (GB)
Title: Firing Circuits for Series-Connected Thyristors.
IPC: H04B1/28
Filed: 1967-11-27
Abstract: 1,165,049. Converters. WESTINGHOUSE ELECTRIC CORP. 27 Nov., 1967 [19 Dec., 1966], No. 53746/67. Heading H2F. [Also in Division H3] A triggaring circuit for a thyristor comprises a F.M. transmitter (not shown) and an F.M. receiver. The receiver comprises a demodulator 49, 51 and the resulting demodulated output pulse is shaped and then fed to a thyristor 58 which triggers two main thyristors 32, 34 (e.g. in a polyphase converter). A protection circuit comprising capacitors 68, 62 will also fire the thryistors in the event of any excess voltage which would otherwise cause anodecathode breakdown. The arrangement is employed for thyristors operating at a high voltage, and as described with reference to Fig. 1 (not shown). The thyristors are immersed in oil, and the transmitting transducer (18) and the receiving transducer 26 are mounted in a tube containing a dielectric gas.
Patent GB-1090210-A (GB)
Title: Method for the manufacture of strands from films of alkylene polymers
IPC: D01D5/42
Filed: 1965-12-20
Abstract: 1,090,210. Making strands from polyalkylene films. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 20, 1965 [Dec. 22, 1964], No. 53837/65. Heading BSB. [Also in Division D1] As shown in the drawing twisted strands of fibrillous structure are made from polyalkylene fibres which have been molecularly oriented in the longitudinal direction and thereby rendered readily splittable or fibrillatable in this direction by drawing the film 12 in the longitudinal direction by feed rollers 11 from a supply reel 10 and fed into the inlet end 14 of a tube or flyer 13 the inlet and outlet ends 14 and 15 of which are straight and parallel to one another. The flyer 13 is mounted in a support 20 for rotational drive around the axis of the inlet end 14. A take-up reel 16 is mounted coaxially with the inlet end 14 of the flyer 13 on a rotating shaft 18 mounted in a support 17 which is reciprocated in a direction parallel to the axis of the take-up reel 16 which is thereby traversed with respect to the outlet end 15 of the flyer 13. The speed of the take-up reel 16 is adjusted so that the tension applied to the film is at least 5 kg. per square mm. and preferably at least 10 kg. per square mm. The curved tube flyer 13 may be substituted by a rotating disc provided with an eccentrically situated passage opening for the strand. Alternatively the tube 13 may be substituted by two eye guides connected to each other by a rod and corresponding with the two straight portions of the tube. The longitudinal stretching and the twisting and fibrillation of the film may be combined in a continuous operation, the draw rolls of the stretching zone functioning as the feed rolls of the twisting zone. The film may consist of a crystalline polypropylene or a low-pressure polyethylene.
Patent GB-1287405-A (GB)
Title: Non-aqueous lubricant compositions
Inventor: BROOK JAMES HAROLD THURSTON
IPC: C10M141/06
Filed: 1968-11-13
Abstract: 1287405 Non-aqueous lubricant SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 22 Sept 1969 [13 Nov 1968] 53870/68 Heading C5F A non-aqueous lubricant comprises a mineral lubricating oil and (a) an oil-soluble succinimide dispersant that is the reaction product of a polyamine and succinic acid reactant or a derivative thereof and (b) either one or more C 9+  acyclic aliphatic alcohols in which one or more carbon atoms may be replaced by a sulphur atom, or one or more esters of (1) a C 8+  aliphatic monohydroxy alcohol and (2) a C 2 -C 11  aromatic or saturated aliphatic monocarboxylic acid, the alcohol or ester additives being soluble in the mineral oil. Preferred alcohol and ester additives are thiopentacosanol, n-dodecanol, cetylalcohol, oleyl alcohol, 5- ethyl nonanol C 15 -C 19  alcohols 4-methyl-7- ethylundecanol-2 the salicylate of mixed C 12 - C 15  alcohols. Optional additives include antifoam agents, antioxidants, anticorrosion agents detergents, extreme pressure agents, metal passivators, pour point depressants and thickeners, and lists of suitable compounds are given for each.
Patent GB-1144079-A (GB)
Title: Explosive compositions
IPC: C06B47/14
Filed: 1967-11-28
Abstract: 1,144,079. Explosive compositions. CANADIAN INDUSTRIES Ltd. 28 Nov., 1967 [6 Dec., 1966], No. 64120/67. Heading C1D. An explosive composition comprises an inorganic oxygen-supplying salt, a flavonoid (a hydroxy flavone or polycondensate thereof), a mutual solvent for the inorganic salt and the flavonoid, and a thickener soluble in the mutual solvent. The oxygen balance of the composition is from + 15 to -35 grams of oxygen per 100 grams of explosive. The flavonoid specified is the sodium salt of polyphenols extracted from wood or bark. The inorganic salt is preferably ammonium nitrate which may be mixed with Na, K, Ba, or Ca nitrate. The preferred solvent is water, part or all of which may be replaced by formamide, dimethyl sulphoxide, ethylene glycol, or a lower alcohol. Finely divided Al or Al alloy, Si, ferrosilicon, ferrophosphorus, carbonaceous material, or carbon may be added. Also included may be a self-explosive e.g. TNT, PETN, RDX, composition B, pentolite, smokeless powder, nitrocellulose, or nitrostarch. Guar gum, carob seed gum, tamarind flour, starch, and hydroxyethyl cellulose are suitable thickeners. Sodium or potassium dichromate or zinc or barium chromate may be present as a cross-linking agent. In examples, other constituents used are urea, sulphur, sodium lignosulphonate, and 2-ethyl hexanol. The flavonoid increases the sensitivity of the explosive and also prevents dispersion of air bubbles entrained in the mixture.
Patent GB-1256110-A (GB)
Title: Fission product retaining fuel
Inventor: GRAHAM LESLIE WILFRED
IPC: B23Q5/26
Filed: 1969-11-05
Abstract: 1,256,110. Nuclear fuel. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 15 Oct., 1970 [5 Nov., 1969], No. 54350/69, Heading G6C. A fission product-retaining nuclear fuel comprises kernels of fuel material, e.g. UO 2 , each coated with at least one layer of a metal carbide, e.g. SiO 2 , and a number of layers of pyrocarbon. In order to minimize thermal stress formation, the temperature range required for the pyrolytic deposition of the metal carbide is determined, and the metal carbide and the pyrocarbon are then deposited at a temperature within this range. The different characteristics of the pyrocarbon layers are achieved by variation in the gas flow conditions. In an example, the sequence of coating layers was as follows: (a) porous inner layer of pyrocarbon, (b) sealing layer of pyrocarbon, (c) barrier layer of pyrocarbon, (d) SiC 2  barrier layer, and (e) outer pyrocarbon barrier layer. Layers (a) and (b) were applied using butane gas as the carbon source and CO as the diluent gas, and layers (c) and (e) using butane and argon. For layer (d) H 2  was used as the diluent gas and methyltrichlorosilane vapour as the coating source material. The coating temperature for the SiC 2  layer was about 1600 C. and the temperature of the coating apparatus did not depart from this by more than about 50 C., tending towards the higher temperature for the outermost coating.
Patent GB-1106718-A (GB)
Title: Improvements in or relating to ball joints, particularly for wheel suspension of motor vehicles
IPC: B60G7/00
Filed: 1966-12-05
Abstract: 1,106,718. Ball joints. J. ULDERUP. 5 Dec., 1966 [16 Feb., 1966], No. 54352/66. Heading E2F. A ball joint, particularly for wheel suspension in motor vehicles, as shown on the right hand side of the drawing, comprises a hollow housing 1 with an interior partspherical surface in which rests an annular part-spherical bearing body 2 for a pin 3 provided with a semispherical head 5; adjacent to the exit aperture 1' is a ring 6 of steel, this ring and the radial surface 5' of the head forming supporting surfaces for surfaces 4 and 7 of the bearing body (preferably of elastic plastics material or sintered metal). The supporting ring 6 can be disposed slidingly or rigidly on the cylindrical portion of the pin 3. The joint may also comprise a resilient ring 9 of elastic material and annular space 10 for containing lubricating grease or oil, and the housing may be closed by a flanged-in sealing plate 8 and an elastic sealing sleeve 11 fixed with a clamping ring 15. In the embodiment shown on the left hand side of the drawing, a bush 12 of elastic sliding material is provided with a flange 13, 14 at each end, one flange 13 extending between the head of the pin and the bearing body, while the other 14 engages in the supporting ring.
Patent GB-1241654-A (GB)
Title: Fluorinated aromatic compounds
Inventor: BELF LEON JERZY
IPC: C07C63/72
Filed: 1967-06-28
Abstract: 1,241,654. Fluorinated aromatic compounds. IMPERIAL SMELTING CORP (N.S.C.) Ltd. 26 Sept., 1968 [28 June, 1967], No. 54547/70. Divided out of 1,241,653. Heading<SP> </SP>C2C. The invention comprises 2,3,4,5-, 2,3,4,6- and 2,3,5,6-tetrafluorobromobenzoic acids, 2,3,4,5-, 2,3,4,6- and 2,3,5,6-tetrafluoro bromotoluenes, and octafluoro-2,2<SP>1</SP> and 3,3<SP>1</SP>-diphenic acids. The benzoic acid derivatives are prepared by heating the Grignard agent prepared from the corresponding dibromo-tetrafluorobenzene and magnesium turnings with carbon dioxide. The toluene derivatives are prepared by heating the corresponding Grignard reagents with dimethyl sulphide. Octafluoro-2,2<SP>1</SP>-, 3,31- and 4,4<SP>1</SP>- diphenic acids are prepared by heating the corresponding dihydrooctafluorobiphenyl with butyl lithium and treating the product with carbon dioxide. The dihydro-octafluorobiphenyls used as starting materials may be prepared by heating the corresponding tetrafluorobromobenzene with copper bronze in boiling dimethylformamide.
Patent GB-1433586-A (GB)
Title: Two of eight tone encoder
IPC: H04M1/50
Filed: 1974-12-18
Abstract: 1433586 Digital sine-wave generation; number senders MOTOROLA Inc 18 Dec 1974 [2 Jan 1974] 54745/74 Headings H3H and H4K In a 2 of 8 encoder, clock pulses from generator 12 are counted in a forwards and backwards sequence in counters 38, 50 programmed according to selected row and column inputs 22, 30, their counts being converted by digital-toanalogue converters 44, 58 to produce respective sine waves which are summed, 62, to provide the selected 2 of 8 tone output. As shown in Fig. 3, each programmable counter comprises an 8-bit binary counter 72-80 receiving the clock pulses via a pulse gobbler 70 controlled by the state of the counter and by the selected row (or column). The four most significant states of the counter are connected to Ex OR (or Ex NOR) gates 100, 102, 104 as shown whereby the outputs of the gates progress sequentially from binary 000 to binary 111 and back at a rate determined by the selected row (or column). Decoder 106 may be C.M.O.S. connected to MOSFET devices. The clock pulses are disabled at 18 if more than one key of a 16 key input keyboard is pressed.
Patent GB-1324932-A (GB)
Title: Textile yarn carrier
IPC: B65H75/28
Filed: 1971-11-25
Abstract: 1324932 Grooving yarn cores SONOCO PRODUCTS CO 25 Nov 1971 [27 Nov 1970] 54770/71 Heading B4B [Also in Division B8] A blade for cutting the groove in a textile yarn core comprises a body portion 43 having a central bore and a hub surrounding the bore for attachment of the blade to a driving shaft. The body portion 43 has a peripheral cutting edge 47 which may extend over the entire periphery of the blade or only part. At least one side of the body portion 43 is provided with a double-taper surface 46, 48 to form a double-taper groove.
Patent GB-1371355-A (GB)
Title: Colour television system
IPC: H04N9/077
Filed: 1971-11-25
Abstract: 1371355 Colour television SONY CORP 25 Nov 1971 [27 Nov 1970] 54858/71 Heading H4F The output of a single-tube television camera veiwing a scene through a red, green and cyan vertically (for horizontal line scanning of the tube) striped filter is converted into an NTSC signal without first demodulating the output to give red, green and blue signals. As described the camera tube includes striped vertical electrodes so that the resulting output contains an index signal which is separated using one, three or five line delay line 19, subtractor 21, inverter 24 and switch 23 operated at half-line frequency. The luminance signal is separated by low-pass filter 17, and the chrominance signal is derived at the output of adder 20. The transmission of each cyan filter stripe is equivalent to the sum of half the transmission through a green stripe and an equivalent transmission of blue light and the resulting chrominance signal in terms of E R , E G  and E B  is as shown in Fig. 8. The luminance signal detected is 1/3 (ER + EG + E cyan) = 0À33 E R  + 0À5 E G  + 0À17 E B  which may be corrected to NTSC form by a signal-0À03E R  + 0À09 E G  - 0À06 E B  which is added to the luminance signal at 56, the necessary ratio of E R , E G  and E B  being produced by phase detecting at 57 the chrominance signal along axis # W  shown in Fig. 16. The carrier frequency of the chrominance signal is changed to that of an oscillator 44 by use of amplitude modulators 43, 42 and band-pass filters 45, 46 and the resulting signal is passed to an amplitude modulator 47 which also receives on input from frequency doubler 49. Modulator 47 is such that at the positive peaks of the signal from 49, the amplitude of the signal from 46 is multiplied by 1À5, whereas at the negative peaks, the signal amplitude from 46 is unaltered. Thus when the positive peaks of the signal from 49 coincide with the positive and negative peaks of the signal from 46 the amplitude of the signal from 46 is multiplied by 1À5, whereas for phase 90 degrees displaced from this (positive and negative peaks from 46 coinciding with the negative peaks from 49) the amplitude is multiplied by 1À0. The phase shifter 48 is adjusted so that a signal which is 23 degrees ahead of the phase of E B  shown in Fig. 8, is amplitude multiplied by 1À5 in 47. If the resulting signals are multiplied by 1/1À61 and advanced in phase by 3 degrees the chrominance signal of NTSC form shown in Fig. 14, is produced. This signal has added to it at 51 bursts from a gate 50 and the resulting signal is added at 53 to the luminance signal to produce a composite NTSC signal. The outputs of low-pass filter 17 and subtractor 21 may be passed to a balanced modulator, which provides a white balance correction signal to be added to the chrominance signal.
Patent GB-1123220-A (GB)
Title: Ignition coils
Inventor: SALT JOHN
IPC: H01F38/12
Filed: 1965-12-28
Abstract: 1,123,220. Securing terminals to bases. JOSEPH LUCAS (INDUSTRIES) Ltd. 14 Nov., 1966 [28 Dec., 1965], No. 54913/65. Heading H2E. [Also in Division H1] An ignition coil includes a casing closed by a synthetic resin cover having terminals 11, 12 for making connection to a winding in the casing, each terminal consisting of contact pieces 13, 14 electrically interconnected and secured to the cover by a rivet 15 of the kind including a rivet head 16 at one end of a hollow shank and means operable from that end for deforming the other end of the shank. Preferably, the deformation is produced by pulling on a wire attached within the shank adjacent the end to be deformed. The rivets also serve to seal oil in the casing.