baber/WOPTO huggingface dataset:
Patent GB-1287387-A (GB)
Title: Error correcting decoder
Inventor: BOSSEN DOUGLAS CRAIG
IPC: H03M13/15
Filed: 1971-05-19
Abstract: 1287387 Error correction-systems INTERNATIONAL BUSINESS MACHINES CORP 19 May 1971 [28 Sept 1970] 15761/71 Heading G4A A syndrome is computed from a code word including check bits, the syndrome is transformed successively through a succession of values, a gate responsive to a predetermined value senses the succession of syndrome values, and a code word bit, in a position corresponding to the number of successive values counted when the gate responds, is inverted to correct an error. In the described embodiment a shortened Bose-Chaudhuri code word containing 15 check bits and 64 data bits is fetched from memory and is entered in a ring counter 114 having a connection from the 00 bit stage 116 to the 78 bit stage 118. An exclusive OR tree syndrome computer 122 derives a 15-bit syndrome by modulo 2 addition of groups of bits. If no error is present the syndrome is all zeros, and a linear feedback shift register 126 arranged according to the generator polynomial of the check bits is successively shifted left so that if an error syndrome is present successive patterns of the syndrome matrix are generated by successive shifts. The register 126 feeds a bank of recognition gates 154 of which a first G oo  is used for single error correction and the remainder G 01 -G 78  for double error correction. If two errors are present, the gate corresponding to the difference between the indices of the two erroneous bits responds when the first erroneous bit is in stage 116 of ring counter 114, and a second response is subsequently obtained from G oo , after correction of the first bit, when the second erroneous bit reaches stage 116. The OR'ed outputs of gates 154 are fed to correction gates 158, 159. The number of shifts made is counted at 164, and after 79 shifts, timing gate 162 is closed and data read-out gate 166 is opened. For faster operation, the output of syndrome computer 122 may be connected to conventional circuits for correcting single errors and detecting double errors, only the detected double errors being corrected by the above shift register circuit.
Patent GB-618043-A (GB)
Title: Improvements in or relating to the production of compressed air on board aircraft
IPC: F04D27/02
Filed: 1941-12-06
Abstract: 618,043. Fluid-actuated valves. AIREQUIPMENT. Dec. 6, 1941, No. 15771. Convention date, Dec. 24, 1940. [Class 135] [Also in Groups XXVIII and XXXIII] An automatic pressure regulating and relief valve suitable for use in a compressed air distributing system for aircraft (see Group XXVIIJ), wherein air normally flows from union 75, Fig. 4, to union 76, comprises a stop-valve 82 and a duct 84 leading to atmosphere and being controlled by a needle valve 87. The valve 87 carries a rod 89 pivoted to a lever 90 itself pivoted at one end to a stationary pin 91 and at the other end to a spring-loaded piston 92 subjected to the pressure of air in the duct 78. At a predetermined air pressure the piston 92 is depressed to open the valve 87 and so afford release to atmosphere, the valve 82 remaining closed. A cam 95 fixed to the lever 90 co-operates with a follower block 97 to break the balance when the lever 90 is rocked. A regulating valve, for air passing from a duct 51, Fig. 3, to a duct 53 and maintaining air pressure at the duct 53 substantially constant and independent of variations in atmospheric pressure acting through orifices 68 on a piston 61, comprises a disc 56 urged to its seat 57 by a spring-loaded sleeve 58 carrying a rod 60 by which the disc may be held off its seat by the sleeve 61. In addition to the pressure of the atmosphere the sleeve 61 is urged downwardly by a spring 64 and a flexible spring-loaded diaphragm 67 bounding an evacuated chamber 69. Reduction in atmospheric pressure on the sleeve 61 due to altitude is compensated by an increased pressure from the diaphragm 67. A pressure relief valve 6, Fig. 7, mounted on a compressed air purifier 5 is held closed by the pressure of the atmosphere, a spring 7 and a bellows 140 sealed at normal atmospheric pressure. At high altitudes the atmospheric pressure effect is compensated for by an increased thrust of the bellows 140.
Patent GB-130970-A (GB)
Title: Improvements in Apparatus for the Production of Esters.
IPC: C07C67/08
Filed: 1919-06-23
Abstract: 130,970. U.S. Industrial Alcohol Co., (Assignees of Backhaus, A. A.). Aug. 7, 1918, [Convention date]. Drawings to Specification. Distilling-plant.-Esters are prepared in a continuous manner by feeding an alcohol, an organic acid, and a catalyst to a mixing tank from which the mixed reagents are fed to a column still. The production of methyl acetate from methyl alcohol, glacial acetic acid, and sulphuric acid, is described. The apparatus is identical with that shown in Fig. 2 of Specification 130,968.
Patent GB-1445294-A (GB)
Title: Arrangement for sealing a bearing gap
IPC: F16J15/56
Filed: 1974-04-09
Abstract: 1445294 Seals SIEMENS AG 9 April 1974 [10 April 1973] 15777/74 Heading F2B The overlapping plastics segments 10 of a seal ring are mounted in a groove 12 and each urged radially inwards by a spring 20 to seal against an unmachined plastics tube 4 of an electrical load break switch. Preferably the segments 10 and the tube 4 are made of polyoxymethylene.
Patent GB-581517-A (GB)
Title: Halogenomethyl derivatives of amido compounds
IPC: D06M13/322
Filed: 1944-08-18
Abstract: Halogenomethyl derivatives of amides or carbamates of the formula R-CO-NH2 or R-O-CO-NH2, where R is an alkyl or cycloalkyl radical of at least 10 carbon atoms, are made by reacting them with formaldehyde-yielding agents and hydrogen chloride or bromide under conditions whereby high concentrations of the amido compound in the presence of the formaldehyde-yielding agent are avoided. Paraformaldehyde or trioxymethylene may be suspended in a liquid medium such as benzene, and hydrogen chloride and the amide or carbamate passed in gradually or all three reagents passed from separate sources into benzene. Alternatively, paraformaldehyde and the amido compound may be mixed dry and passed gradually into benzene while simultaneously passing hydrogen chloride.  Behenic acid amide in particular gives products which form quaternary ammonium compounds with tertiary bases such as pyridine, picoline, quinoline, trimethylamine, triethylamine, dimethylaniline, and piperidine, and isothiouronium compounds with thiourea.  The products may also be reacted with potassium or lead thiocyanate to replace halogen by thiocyano radicals, the thiocyanates isomerizing on standing to isothiocyanates or reacting with tertiary amines to form quaternary ammonium thiocyanates.  The products, and the quaternary ammonium compounds, isothiouronium compounds and isothiocyanates are applied to fabrics from aqueous or organic solution as water-repellents. Other acid amides, such as stearamide, lauramide and montanic acid amide, and carbamates of the above formul  give similar products.  In examples: (1) a solution of behenic acid amide in hot benzene is added gradually to a suspension of paraformaldehyde in benzene while passing hydrogen chloride.  The solution is heated and evaporated in vacuo to yield the chlormethylamide; (2) the product of (1) is reacted in carbon tetrachloride with lead thiocyanate at 80 DEG  C., the product, which reacts with pyridine to form a quaternary ammonium salt, apparently being bis-(thiocyano-methylene)-dimethylene-tribehenamide.  Applied to cotton or wool from an organic solvent at a concentration of 0.5 per cent, followed by baking, it gives a water-repellent fabric fast to laundering and dry cleaning; (3) behenamide is reacted in a manner similar to that of (1), the product being reacted with triethylamine and pyridine to give water-soluble compounds acting as water-repellents when applied to cotton or regenerated cellulose, (4) the chlormethylamide of (3) is reacted with lead thiocyanate and the product used as a water-repellent for cotton, wool or rayon; (5) docosyl carbamate is reacted in a manner similar to that of (1), the chlormethyl compound being converted to the thiocyanate which is used as such or after conversion to the pyridinium salt as a water repellent, being applied from aqueous or carbon tetrachloride solution.  Specification 581,518 is referred to.
Patent GB-168992-A (GB)
Title: Improvements in or relating to concrete slabs and building blocks
IPC: E04B2/02
Filed: 1920-06-11
Abstract: 168,992. Eisel, H. C., and Etherington, W. B. June 11, 1920. Building-blocks, special shapes of.-Walls, columns, and other structures are formed of L- shaped blocks so placed as to form cavities which may be filled with concrete with or without reinforcement. Fig. 1 shows a pillar and Fig. 3 shows a wall. A space g separates the inner and outer block of the wall, and grooves f are left uncemented for draining away moisture. The blocks may interlock by tongues and grooves and may be reinforced. Reference has been directed by the Comptroller to Specifications 15540/02, 2370/06, 14948/11, 14549/12, [Class 87 (ii), Moulding plastic &c. substances], 15955/12, and 140,926.
Patent GB-1457653-A (GB)
Title: Apparatus for controlling the speed of a rotary cutter
IPC: B23D36/00
Filed: 1974-04-10
Abstract: 1457653 Automatic control I MIYAKITA 10 April 1974 [4 Oct 1973 31 Dec 1973] 15886/74 Heading G3N The speed of a rotary cutter driven by an electrohydraulic pulse motor is synchronized with the feedrate of a sheet material at a cutting position by applying all the pulses of a pulse train to the motor and the total number of pulses in the pulse train is decreased depending on the cutting length of the sheet material. As shown, cutter 1', 2' mounted on rotary members 1, 2 are driven through gearing 4, 6, 6' by an electro-hydraulic pulse motor in response to a pulse train from a device 8 driven by the material to be cut. The pulse train is modified by a control circuit 50 so that the cutters are synchronized with the material over a zone about the cutting position and decelerated and accelerated outside this zone in dependence on the length of material to be cut.
Patent GB-297370-A (GB)
Title: Improvements in or relating to beer pipe fittings
IPC: B08B9/04
Filed: 1927-06-15
Abstract: 297,370. Selby, L. June 15, 1927. Cleaning; pipes. - The pipes 2, 3 of beer engines which are inclined to each other at angles other than a right angle are connected by a fitting 1 having portions 4, 5 in alignment with the pipes so that cleaning brushes can be passed through them when the closing caps 6, 7 are removed.
Patent GB-102257-A (GB)
Title: Improvements in Submarines.
IPC: B63G8/22
Filed: 1916-11-08
Abstract: 102,257. Lake Torpedo Boat Co., (Assignees of Walker, W.L.). Nov. 12, 1915, [Convention. date]. Ballasting.-A device for automatically emptying the main and trimming ballast tanks of a submarine, when the vessel exceeds a predetermined depth, comprises a closed vessel containing a chemical such as calcium carbide, to which water is admitted to generate gas under pressure for emptying the tanks. Fig. 1 shows the main ballast tank A and auxiliary or trimming tank B having a connexion to the sea controlled by a spring-loaded valve C. The chemical chamber E has a removable cover E' and is connected to the main ballast tank, which is open to the sea, by a pipe H fitted with a check valve H<1>, a normally open stop valve H<2>, and a frangible disk I adapted to be ruptured by the hydrostatic pressure when the predetermined depth is exceeded. The gas generated in the chamber E passes through a pipe L and presses back a spring-loaded piston K<1> to close the air vent to the trimming- tank and to admit gas to this tank to expel the water through the valve C. A pump is provided to empty the gas chamber. A modification is described showing the application to the main ballast tank.
Patent GB-172993-A (GB)
Title: Improvements in and relating to the employment of antiseptic, disinfectant, or preservative agents
IPC: A01N25/02
Filed: 1920-06-12
Abstract: Thymol, carvacrol, and other higher phenols, and alcoholic, aldehydic, and etheric bodies of the aromatic or terpene groups which are constituents of essential oils are used in association with propyl, butyl, or amyl alcohol or other higher aliphatic monohydric alcohols, or the corresponding aldehydes or ketones as antiseptics, particularly for preserving food.  In the presence of oxygen, or oxidizing agents such as hydrogen peroxide or ozonic ether, compounds are stated to be formed which may be used for the same purposes or which may be decomposed by heating to yield the thymol or other constituent in a chemically pure form.  The invention is described with reference to a mixture of substantially equal quantities of thymol and isobutyl alcohol which on standing in presence of air yields a reddish oily compound.  This compound on distillation under reduced pressure at 50 to 60 DEG  C. yields a distillate from which crystals of thymol separate on standing.
Patent GB-1514428-A (GB)
Title: Starch/latex cast coatings for paper
IPC: D21H19/22
Filed: 1976-04-21
Abstract: 1514428 Starch binder composition for paper coating CHAMPION INTERNATIONAL CORP 21 April 1976 [5 May 1975] 16047/76 Heading C3U A non-proteinaceous binder composition for cast surface coating of paper comprises modified starch and two carboxylated styrene-butadiene latexes which differ in respect of type and/or amount of carboxylation. The preferred starches are ethylated, cationic or high amylopectin starches. The compositions generally contain an insoluble filler, an inorganic polyphosphate dispersant, an organic dispersant, an oleaginous release material and a pentaerythritol ester of rosin. The preferred composition comprises: 85 parts of CaCO3, 15 parts of coating clay, 0À5 parts of an inorganic polyphosphate dispersant, 0À7 parts of an organic dispersant, 3-5 parts of a modified starch, 6-8 parts of one of two carboxylate styrene-butadiene latexes and 5-12 parts of the other latex, 1À5 parts of oleaginous release agent, 1À0 part of the sodium pentaerythritol ester of rosin, the composition having a pH of 9À5-10 and a total solids of 55-60%.
Patent GB-1135826-A (GB)
Title: A pressure suppression system for nuclear reactor plants
IPC: G21C9/00
Filed: 1966-04-13
Abstract: 1,135,826. Reactors. ALLMANNA SVENSKA ELEKTRISKA A.B. 13 April, 1966 [13 April, 1965], No. 16130/66. Heading G6C. The pressure rise inside a containment structure of a steam cooled nuclear reactor is limited in the event of a failure of the reactor pressure vessel by a steam condensing system within the structure. As shown, the reactor 1 is surrounded by the containment 4 which also contains the cooling and heat-accumulating packing 5. If pipes 2 or 3 burst, steam flows to the packing 5 and is condensed. Later sprinkler tubes 10, 15 are coupled to the space 8 by the pump 12 and heat exchanger 12.
Patent GB-561279-A (GB)
Title: Improvements in or relating to tubular contamers for electrical condensers or other apparatus
IPC: H01G4/224
Filed: 1942-11-14
Abstract: 561,279. Metal containers for condensers. SPORING, P. A., and TELEGRAPH CONDENSER CO., Ltd. Nov. 14, 1942, No. 16133. [Class 66] [Also in Group XXXVI] A tubular metal container 2 for condensers 1 is closed at one or both ends by means of a disc 4 of glass or ceramic material over the periphery of which the end of the metal tube 6 is spun with the intervention of a gasket 5. A shoulder 3 may be formed in the tube to hold the disc and the spun-over end of the tube may be soldered to a metallized surface on the disc 4. Specification 541,096, [Group XXXVI], is referred to.
Patent GB-1372145-A (GB)
Title: Movement monitoring system
IPC: G01B11/16
Filed: 1972-04-07
Abstract: 1372145 Detecting relative movement COMPAGNIE GENERALE D'ELECTRICITE and COMPAGNIE INDUSTRIELLE DES LASERS 7 April 1972 [9 April 1971] 16136/72 Heading H4D [Also in Division G1] In a device for detecting relative movement between two elements such as a dam 1 and a valley 2, a laser beam source 6 on one side of the valley projects a beam 7 via a movement detector (comprising semi-reflector mirrors 9, 10 and four unit photo-cells 12, 13) which is attached to the dam wall 1, on to a four cell unit photosensitive device 8 on the other side 4 of the valley. The laser beams incidence is kept central of the four unit photo-sensitive device by a feedback loop from the photo-sensitive device 8 controlling a deflector 16 of the laser beam 7 or means moving the source itself. Thus the laser beam can be treated as a reference and after calibration the movement detector will be able to detect movement in two dimensions. The movement detector may be initially calibrated by arranging for the sub-beams to fall on the photo-detectors 12 and 13 in the centre of their photo-sensitive surfaces thereby equally illuminating each of the constituent cells. The device may be extended to detect in three dimensions by incorporating a further four cell detector and semi-reflector into the movement detector.
Patent GB-529545-A (GB)
Title: Improvements in electric resistance welding installations
IPC: B23K11/24
Filed: 1939-06-02
Abstract: 529,545. Supply systems for resistance welding. BERGHAUS, B. June 2, 1939, No. 16319. Convention date, June 3, 1938. [Class 38 (iv)] A resistance welding installation comprises a transformer 6 the primary of which, in series with a condenser 5, forms the oscillatory circuit of a thermionic valve oscillation generator fed from a source 1 of D.C. or rectified A.C. and producing high or medium frequency current for energizing the welding circuit. The load on the D.C. source may be equalized by a choke 2 and regulable buffer battery 11. In a modification, Fig. 2 (not shown) the installation is fed from a three-phase network through a rectifier, the welding load is coupled through an additional transformer, and an auxiliary load is connected in parallel with the oscillation generator.
Patent GB-1367860-A (GB)
Title: Closures for containers
IPC: F16J13/24
Filed: 1973-04-05
Abstract: 1367860 Vessel closures SWINNEY ENG Ltd 5 April 1973 16342/73 Addition to 1181757 Heading F2P In a closure for a pressure vessel, in which a cover 1 is latched as in the parent Specification 1,181,757 a relief valve 11 is positioned centrally, so as to obviate the need to make a separate hole for it in an optional weather-proof lid 21. The latching members 7 cannot be released, until valve 11 has been opened, in which position pins 13 are clear of notches 16. The cover 1 is carried by bolts 23 on lid 21, which is hinged at 22.
Patent GB-625357-A (GB)
Title: Improvements relating to ornamental articles
IPC: A44B17/00
Filed: 1947-06-20
Abstract: 625,357. Jewellery. UNIVERSAL PLASTICS, Ltd., and JOHNSTON, J. June 20, 1947, No. 16359. [Class 43] An ornamental article comprises a base permanently secured to a garment and provided with a headed projection over which an apertured ornament is detachably snapped so that the head appears through the hole in the ornament. The projection 3 of a base 1, consisting of the stud part of a metal press-stud fastener which is sewn to a garment, is detachably engaged in a hole 4 in an ornament 2, moulded from plastic to simulate flower petals, the projection representing the centre of the flower. The base may be of plastic instead of metal.
Patent GB-356765-A (GB)
Title: Improvements in and relating to percussion caps and the like
IPC: F42C19/10
Filed: 1930-05-28
Abstract: 356,765. Percussion caps for fog signals. BROWNSDON, H. W., 43, St. Agnes Road, Moseley, Birmingham, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. May 28, 1930, No. 16441. [Class 9 (ii).] Relates to percussion caps of the kind comprising a casing A containing a priming composition.in its closed end and an anvil B inserted througl its open end which is adapted to be placed against the baseplate c of a fog signal, and consists in sealing the cap by means or wax or solder applied at the joint d between the edge of the casing and the anvil B, Fig. 2, or the plate c, Fig. 1, so that the sealing material does not come in contact with the priming composition.
Patent GB-334202-A (GB)
Title: Improvements in or relating to the preserving of wood
IPC: B27K3/50
Filed: 1929-05-28
Abstract: 334,202. Carpmael, A., (I. G. Farbenindustrie, Akt.-Ges.). May 28, 1929. Proofing against bacteria; proofing processes and compositions.-Materials suitable for woodimpregnation are prepared by forming salts or salt-like compounds of nitrated phenols with hydroxyalkylamines of the formula <X>Y#N-R-OH, in which R represents an alkylene residue and X and Y are hydrogen atoms or an aliphatic or aromatic residue. The components may be melted together, or mixed in the dry state or in solution. Nitrated phenols specified are 2 : 4- dinitrophenol and 3 : 5 - dinitro - 2 - hydroxy - 1- methylbenzene; hydroxyalkylamines mentioned are mono- and di-hydroxyethylaniline, monodi- and tri-hydroxyethylamine and the corresponding hydroxypropylamines. Mixtures of the nitrated phenols or of the hydroxyalkylamines may be employed, e.g. the mixture of primary, secondary and tertiary hydroxyalkylamines obtained by interaction of ethylene oxide or propylene oxide with ammonia. The materials, which are readily water-soluble, may be used in admixture with other wood-impregnating compounds, e.g. fluorides, chlorides, phosphates, arsenites, and formaldehyde or substances yielding formaldehyde; an anti-corrosive, such as potassium dichromate, may also be present. An example is given of the impregnation of pine wood, under reduced followed by increased pressure, with an aqueous solution of a mixture of sodium fluoride, zinc fluoride, hexamethylenetetramine and 2 : 4- dinitrophenol-hydroxyethylaniline.
Patent GB-484044-A (GB)
Title: Method of and means for singeing yarn
IPC: D02J3/16
Filed: 1937-06-14
Abstract: 484,044. Singeing yarns. HEROLD, R. June 14, 1937, No. 16448. [Class 120 (iii)] [Also in Group XI] Yarns are singed by passing them between flames which are brought progressively closer and then through a burnerless passage wherein a final singeing by an elongated flame from the burner passage occurs. The singeing device consists of an elongated casing 1 containing 2 blocks, 8 and 8<1>, recessed at 9 to form a gas distributing chamber 10 fitted with a supply pipe 11 and connected by ducts 13 with gas channels 12 covered, on the sides facing the singeing channel 10<1>, with plates 14 slotted to form burners. The front 2 of the casing 1 is hinged at 3 to give access to the burners but is normally kept closed by catches 7. Yarn is fed through a slit 4 over a guide roller 5 to an eye 6 in the flared opening 1<1>, which allows the yarn to oscillate, as for cross-winding. The singeing passage 10<1> tapers in the direction of travel. An exhaust applied at 17 serves to draw the flame from the burners into the burnerless passage 16 and also to carry away any ash removed by the guide 6. Air for combustion enters at the holes 18.
Patent GB-829684-A (GB)
Title: Nickel-copper base alloys and glass moulding elements made therefrom
IPC: C22C19/00
Filed: 1956-05-28
Abstract: An alloy suitable for moulding elements for glass or for cast dies for the casting of non-ferrous metals has a composition, in per cent by weight, within the following range: Cu 20.0-40.0, Al 0.5-17.0, Ti 0.01-0.5, Si 0.2-1.5, Mn 0.5-2.5, C up to 0.2, Mg 0.02-0.1, B 0.03-0.5, Fe 0-2.5, Co 0-1.0, Ni and impurities the balance.  Pb, if present, should not exceed 0.005 and one or more of Sn, Sb, Se, Te, Cd, Bi and Ag may be present up to 0.05 in total.  The alloy may be made by forming a molten bath of Ni and Cu containing some Si, oxidizing with nickel oxide to remove oxidizible impurities, deoxidizing with Si, adding the Mn, carburizing with not over 0.2% of C, adding some of the required Al, adding the Ti and then the remainder of the Al, adding B together with or followed by Mg and casting the alloy.