baber/WOPTO huggingface dataset:
Patent GB-1299916-A (GB)
Title: A sliding clasp fastener with knitted stringer tapes
IPC: A44B19/42
Filed: 1970-05-26
Abstract: 1299916 Sliding clasp fasteners LIGHTNING FASTENERS Ltd 26 May 1970 [4 April 1970] 25060/70 Heading E2S The subject matter is substantially similar to that of Specification 1299913 but the claims are directed to a sliding clasp fastener comprising two stringer tapes knitted to form longitudinal wales, to which two rows of interlocking elements are respectively attached by sewing and where the distance between' the courses of loops in the tapes is smaller than the sewing pitch and the pitch of the rows of interlocking elements. Double sewing threads may be used and inset supporting strands 4 are provided.
Patent GB-1073172-A (GB)
Title: Improvements relating to test packs for the detection of uric acid
IPC: C12Q1/28
Filed: 1964-06-17
Abstract: A test pack for detecting uric acid in blood comprises (a) a separately packed first buffered enzyme system comprising urate oxidase (uricase) and an inhibitor for enzymes having catalase-like activity and (b) a separately packed hydrogen peroxide detecting system.  The blood sample is first contacted with (a) and after reaction, reagent (b) is added.  The inhibitor may comprise an alkali metal azide or a cyanide.  The buffer may have a pH of 8.5-10 (borate, glycine and tris(hydroxymethyl) aminomethane).  A urate oxidase stabiliser (ethylene diamine, 1:2-propylenediamine, ethylene diamine tetracetic acid and other chelating agents for heavy metal ions) may also be present. Reagent (b) may comprise a chromogen the oxidation of which is catalysed by H2O2 in the presence of a peroxidative substance (o-tolidine, o- and p-tolidines, o-phenylenediamine, N:N\sv-dimethyl-p-phenylenediamine, o- and p-anisidines, dianisidine, o- and m-cresols, a - and b -naphthols, catechol, guaiacol, pyrogallol, 2:7-diaminofluorene, leuco-indophenols and gum guaiac), a peroxidative substance (peroxidase; normal whole blood, red blood cells, lyophilised whole blood; iodidemolybdate salts, molybdate salts alone; urohaemin, haemin and metallo-porphyrins, in combination with activating compounds including 2-aminobenzthiazole, pyridine, bipyridyl, bipyridylpyridine and nicotinic acid; iron tannate, ferrous ferro-cyanide and potassium chromic sulphate), a buffer of pH 4.4-5.5 (citrate, succinate, tris(hydroxymethyl) methylamine glutamate or malonate) if desired a further dye (tartrazine). p
Patent GB-647693-A (GB)
Title: Improvements in or relating to the treatment of peat for the production of wax and oxalic acid
Inventor: LEAF GEORGE HECTOR CAMPBELL
IPC: C10G73/00
Filed: 1948-09-27
Abstract: Oxalic acid is obtained as a by-product in the preparation of peat wax from peat by adding dried peat slowly to concentrated nitric acid maintained at a temperature of about 60 DEG  C.  After vigorous reaction has ceased, the wax is separated by filtration through a glass cloth.  The solution remaining is maintained at 60 DEG  C. for a further period, cooled, decanted from solid impurities and crystallized.  A yield of about 20 per cent of oxalic acid is thus obtained.ALSO:Peat wax is extracted from peat by adding peat to concentrated nitric acid with cooling and stirring at such a rate that the formation of nitrous fumes is not excessive.  The peat is preferably air-dried and the temperature of the mixture is kept below 60 DEG  C.  The proportion of peat to nitric acid may be about 1 : 4 by weight.  After vigorous reaction has ceased, the wax is separated by filtration through glass cloth, washed, neutralized with alkali, coagulated, filtered, and finally purified by solvent extraction with benzene and alcohol.  The solution after removal of the wax is heated to 60 DEG  C. for a further period, cooled, decanted from solid impurities and crystallized.  A yield of 20 per cent of oxalic acid is thus obtained.
Patent GB-806393-A (GB)
Title: Improvements in or relating to the construction of internal combustion engines
Inventor: PEARCE DAVID MARESCO
IPC: F02F1/42
Filed: 1956-08-20
Abstract: 806,393. Cylinders. PAVEY, PAXMAN & CO., Ltd. July 9, 1957 [Aug. 20, 1956], No. 25387/56. Class 7(2) A metal casing incorporating an inlet or exhaust passage 1 and a valve chest 3 is secured to a cylinder 7 by a screwed ring providing a valve seat 11. The chest 3 is additionally supported by a bolt 16. There may be inidividual castings for the inlet and exhaust passages or a single casting incorporating both, or the invention may be applied to one passage only.
Patent GB-202538-A (GB)
Title: Improvements in and relating to antifriction bearings
IPC: F16C33/46
Filed: 1922-09-20
Abstract: 202,538. Buckwalter, T. V. Sept. 20, 1922. Variable-speed gearing for motor vehicles. A ball or roller bearing is interposed between the ends of the transmission shafts 1, 2, the bearing being accommodated in a recess in the gear 6 on the motor shaft 1. A conical rollerbearing is shown.
Patent GB-1157419-A (GB)
Title: Process for the manufacture of Self-Extinguishing Styrene/Acrylonitrile-Copolymers
IPC: C08K3/02
Filed: 1968-05-28
Abstract: 1,157,419. Self-extinguishing styrene acrylonitrile copolymers. KNAPSACK A.G. 28 May, 1968 [6 June, 1967], No. 25524/68. Heading C3P. Self-extinguishing styrene/acrylonitrile copolymers are produced by polymerizing the monomers in aq. emulsion to form a latex, stirring into the latex particulate red phosphorus having a maximum particle size of 60 Á as flame-retardant and precipitating the copolymer which is then isolated and dried. In the examples the monomers were polymerized in an aq. mixture of a mixed tert. C 12-16  alkyl mercaptan, potassium persulphate, sodium bisulphite and alkyl-aryl sulphonate as emulsifier, and the copolymer was separated from the latex by addition of acetic acid, the red phosphorus being stirred into the latex prior to precipitation of the copolymer. In comparative examples (1) phosphorus was absent and (7) the copolymer and phosphorus were dry-blended.
Patent GB-297223-A (GB)
Title: Improvements in mechanical movements for moulding presses
IPC: B30B1/02
Filed: 1927-09-28
Abstract: 297,223. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). Sept. 28, 1927. Presses, mechanical. - In a moulding-press, primarily for use in embossing matrices for printing-plates, the movable platen is arranged to be brought into contact with the bed with varying pressures produced by means of a lever provided with changing fulcra. The platen 20 is carried on a head 30 connected by straps 21 to a yoke 20 in which is journaled a shaft 10 having offset portions 11. Straps 12, engaging the offset portions 11, are connected to a thrust member 13 adapted to engage in a recess 14 in the main frame of the machine, the member 13 being connected by a link 15 to a bell-crank lever 16 under the influence of a spring 24 and pin 18. The pin 18, which is slidable in a bracket 17 is engaged, in certain positions of the press, by the ends of levers 9 integral with the shaft 10, the other ends of the levers being connected to a nut 7 on a screw 6. In the position of rest with the platen at its highest position, the nut 7 is at its upper limit of motion, the ends of the levers 9 rest on the bracket 17, and the member 13 is withdrawn from the recess 14. When the nut 7 is lowered, the levers 9 turn on the bracket 17 until the platen rests on the forme carried by the bed. Further movement of the nut then causes the shaft 10 to turn and the ends of the levers to be lifted from the bracket 17, thus allowing the member 13 to be drawn by the spring 24 into the recess 14. The levers 9 then move about the centre of the portions 11 since these are held stationary by the straps 12 and member 13, and this movement of the levers results in the yoke 22 and, therefore, the platen 20 moving a short distance further to apply the necessary high embossing-pressure. On the return movement of the nut 7, the high pressure is first released, the lever 9 turn and engage the pin 18 and so withdraw the member 13, and, finally, turning on the bracket 17, raise the platen.
Patent GB-264230-A (GB)
Title: Improvements in or relating to motor trains of railway and like vehicles
IPC: B61F3/12
Filed: 1925-10-14
Abstract: 264,230. Alley, S. E., and Courtney, B. T. Oct. 14, 1925. Couplings, non-automatic; couplings, axletrucks used as.-The ends A, B of railway vehicles 17, 18 are articulated to and are carried by motor vehicles 10, while the other ends are articulated to and carried by single bogies 21. The coupling between the propelling vehicles and the others comprises part spherical plates 29, 31, Fig. 4. a flat plate 33, a buffer 34 held in place by a ring 35 carried by brackets 36 on a cross-member 37, and a pin 40. Near each end of the member 37 is mounted a housing containing a buffer, constituting a resilient side bearer. A coupling for intermediate vehicles is shown in Fig. 7, and consists of cups 50, 51 attached to brackets 49 secured to the frames of the vehicles. The cup 51 rests on a bearer 52 carried by the bogie 21. A pivot pin 53 is secured to the bogie.
Patent GB-534731-A (GB)
Title: A process for the manufacture of a pozzolanic material from the fine ash of carbonaceous fuels
IPC: C04B18/08
Filed: 1939-09-13
Abstract: 534,731. Puzzuolanic materials. MITCHELL, F. G., and TEMPLE, J. E. Sept. 13, 1939, No. 25769. [Class 22] The puzzuolanic activity of the fine ash from carbonaceous fuels is increased for use with cement by hydrating and then dehydrating. Particles of carbon are removed from the ash by a fine mesh screen and iron oxide by magnetic separation, allowing the dust to fall freely through air in a non-uniform magnetic field. The dust is then hydrated by treatment with saturated steam at moderate pressure and dehydrated by treatment with superheated steam or other dry gas at a temperature of not less than 150‹ C.
Patent GB-1274271-A (GB)
Title: Improvements in or relating to propionic acid derivatives
IPC: C07C205/37
Filed: 1969-05-21
Abstract: 1,274,271. Analgesic &c. compositions. SYNTEX CORP. 21 May, 1969 [30 July, 1968], No. 25852/69. Heading A5B. [Also in Division C2] Pharmaceutical compositions having antiinflammatory, analgesic, anti-pyretic and antipruritic activity comprise, as active ingredient, a 2 - (5' - Y - 6' - methoxynaphth - 2' - yl) - propionic acid, in which Y is a hydrogen or halogen atom, together with a pharmaceutical excipient therefor, and may be administered orally in the form of solutions, suspensions, tablets, pills, capsules, powders or sustained release formulations.
Patent GB-1340140-A (GB)
Title: Forming vessels from sheets of glass which crystallises to glass-ceramic
IPC: C03B23/035
Filed: 1971-04-19
Abstract: 1340140 Reforming glass sheet CORNING GLASS WORKS 19 April 1971 [8 April 1970] 25857/71 Heading C1M To form vessels from sheets of a glass which crystallizes upon application of heat to form a glass-ceramic, a mould is pre-heated to about the temperature of the softening point of the glass sheet, the sheet at room temperature is placed on the heated mould and radiant heat is rapidly applied to the sheet at a rate sufficient to soften the sheet for forming before it becomes rigidified through nucleation and crystallization, the sheet then being vacuum formed while portions of the sheet are maintained planar about the formed portion, the sheet then becoming rigidified. The apparatus shown includes a kiln 10 of refractory material with upper and lower doors 18, movable to allow a ceramic or stainless steel mould 12 to be moved into and out of the kiln 10 on tracks 20. The mould 12 is heated by gas-air radiant energy burners 22 prior to the insertion of sheet 5 which is then heated by burners 22 and by conduction and radiation from the mould 12 so that it passes rapidly through the nucleation temperature range. The mould 12 is supported on a bed 28 into wheels 30 by columns 32 and comprises a planar surface 34 and a mould cavity 36, the cavity 36 being provided with a plurality of vacuum ports 38 connected by conduits 40 to a header 42 leading to a source of vacuum. The sheet S is held against the planar surface 34 by a hold-down assembly 14 which includes a plurality of legs 54 each with a pivoted foot member 74 to engage the sheet S, the legs 54 being supported from a platform 52 and spring- pressed downwardly. The platform 52 is movable up and down by rods 50 connected to screw-jacks 46 operated by a motor 48. The legs 54 are hollow to allow circulation of cooling fluid and they and the members 74 are preferably of stainless steel. Mould surface 34 may also have vacuum ports to assist in holding the edges of sheet S.
Patent GB-311623-A (GB)
Title: Improvements in air line oiler
IPC: E21F17/10
Filed: 1928-09-10
Abstract: 311,623. Marks, Sir G. C., (Ingersoll- Rand Co.). Sept. 10, 1928. Lubricant conveyed by fiuid.-The reservoir of an air-line oiler consists of a number of sections B, C held together in a fiuid-tight manner bv the air pipe L threaded at one end to receive nuts S. Rotatably mounted on the pipe is a weight W, which establishes connection between the pipe and reservoir through radial passages T, an annular groove V, a ball valve j and passages p, q. Initially air passes through the ball valve to the reservoir, and the pressure on the surface of the oil forces oil into a recess X containing absorbent material. Pulsations in the air line cause periodic opening of the valve j with flow of oil in an atomized state into the pipe L. Air pressure in the reservoir is released by a threaded plug v of tapered section such that an outlet is formed with a passage w whilst the threads are still in engagement.
Patent GB-164647-A (GB)
Title: Improved hydraulic rivetting apparatus
IPC: B21J15/20
Filed: 1920-09-09
Abstract: 164,647. Hagger, C. Sept, 9, 1920. Riveting.-A self-contained hydraulic riveter of the horseshoe type comprises an internal-combustion engine driving a variable-delivery pump supplying oil to a riveting-cylinder and a smaller cylinder for returning the tool. The engine 5, Fig. 1, and pump 6 are carried by a bracket 4 at one side of the machine and tanks 8, 10 for fuel, oil, &c. at the other. Pipes 11, 12 supply oil from the pump to the small and large cylinders respectively. An automatic valve 14 controls the flow of oil to and from the tank 10 according to which cylinder is being filled. When the large cylinder is being filled through the pipe 12 the pressure in the passage 19 in the valve 14 acting on the valve 21 closes it and opens the valve 22 so that oil from the tank 10 passes through the pipe 16 and past the valve 22 to the passage 20 and through the pipe 11 to the suction side of the pump to compensate for the difference in the volumes of the cylinders. When the small cylinder is being filled the pressure in the passage 20 closes the valve 22 and opens the valve 21 to allow the excess exhaust from the larger cylinder to flow into the tank 10.
Patent GB-855421-A (GB)
Title: Purification of gases
Inventor: HARTLEY WILFRED
IPC: C10K1/12
Filed: 1956-08-24
Abstract: 855,421. Purifying gases. HUMPHREYS & GLASGOW Ltd. Aug. 16, 1957 [Aug. 24, 1956], No. 26020/56. Class 55 (2). Hydrogen sulphide is removed from a gas by washing it with a solution of chelated iron in the ferric state, the chelated iron being able to exist dissolved in the solution in both the ferric and the ferrous states, and when in solution being reducible by hydrogen sulphide from the ferric to the ferrous state and readily oxidizable from the ferrous to the ferric state, the solution after contacting the gas being regenerated by oxidation for re-use. The chelating agents may be amino acids such as polyamino polycarboxylic acids in which the amino groups are separated from each other by at least two carbon atoms. The amino acid may be of the type in which at least two of the groups X are selected from the class consisting of acetic acid and propionic acid residues and in which R is an alkyl group with at least two carbon atoms in the chain. Alternatively R may be cyclohexane, the nitrogen atoms being attached to the ring in the 1.2 positions. In another form, R is a benzene ring, the nitrogen atoms being substituted for hydrogen atoms in the 1.2 positions and chlorine or a methyl group being substituted for hydrogen in at least one of the positions 3 and 6 in the ring. Examples of suitable amino acids are ethylene diamine tetra acetic acid, ethylene diamine tetra propionic acid, 1.2 diaminocyclohexane N.N<SP>1</SP>-tetra acetic acid, 1.2 diaminocyclohexane N.N<SP>1</SP>-tetra propionic acid, di-ethylene triamine penta acetic acid, N-hydroxyethyl ethylene diamine triacetic acid. In preparing the solution of chelated iron, salts such as alkali metal salts of the acids may be used. The chelated iron solution may be alkaline or not, the hydrogen ion concentration being adjusted by the addition of bases, such as secondary or tertiary aliphatic amines and amino alcohols, or acids such as sulphuric acid.
Patent GB-272374-A (GB)
Title: Improvements in mud pumps
IPC: F04B43/067
Filed: 1926-10-19
Abstract: 272,374. Nouvelle Soc. des Ateliers Patte. Sept. 21, 1926, [Convention date]. Diaphragm pumps; liquid-piston pumps.-In a pump for mud or muddy liquids an adjustable eccentric 11 actuates a piston 9 which acts on a body of glycerine or other suitable liquid above a flexible diaphragm 12, which transmits the pumping action to the mud in the main pump 1. The inlet 2 is provided with a check valve (not shown), and the outlet with a gravity-actuated discharge valve 4. Excessive deformation of the diaphragm is prevented by perforated metal partitions 14. Inlet and outlet valves 15, 16 are provided in the piston, to avoid shocks due to excessive pressure or suction in the pump. Packing and lubrication of the piston is provided by the glycerine, though rubber packing rings may be used if desired. An orifice 4<5> can be opened for cleaning the valve by water under pressure, the head of the valve being made substantially hemispherical. The adjustment of the eccentric is effected by sliding the sheave on the bolts 11' which hold it to a plate 11<4> carried by the shaft.
Patent GB-638889-A (GB)
Title: Improvements in or relating to the production of protective phosphate coatings on metal surfaces
IPC: C23C22/08
Filed: 1947-09-26
Abstract: Protective phosphate coatings on ferrous, zinc or cadmium metal surfaces are produced by the application of a paste-like aqueous coating comprising 10-45 parts by weight of finely-divided silica aerogel (50 per cent passing a 100-mesh screen), and 100 parts by weight of aqueous phosphate solution having a pH of 0.5-6, and an oxidizing agent, e.g. sodium nitrate, cupric nitrate, nitric acid or a nitrate.  The aqueous phosphate solution may contain, in addition to 25-70 per cent of a phosphorus compound capable of supplying phosphate ions, e.g. phosphoric acid and manganese phosphate, or zinc dihydrogen phosphate, a water soluble cellulose ether, e.g. methyl or ethyl cellulose and a wetting agent, e.g. sulphonates or sulphates of long chain organic compounds. Application may be by spray or brush and when reaction is complete the light fluffy layer of silica may be removed by brush, dipping in water or by water or air spray. Enhanced protective effect is obtained by after-coating with an aqueous paste of a water-soluble hexavalent chromium compound, e.g. sodium dichromate and chromic acid, and silica aerogel in a similar manner.ALSO:Protective phosphate coatings on ferrous, zinc or cadmium metal surfaces are produced by the application of a paste-like aqueous coating comprising 10-45 parts by weight of finely divided silica aerogel (50 per cent passing a 100 mesh screen) and 100 parts by weight of aqueous phosphate solution with a pH of 0.5-6 and an oxidizing agent, e.g. sodium nitrate, cupric nitrate, nitric acid or a nitrite.  The aqueous phosphate solution may contain, in addition to 25-70 per cent of a phosphorus compound capable of supplying phosphate ions, e.g. phosphoric acid and manganese phosphate or zinc dihydrogen phosphate, a water soluble cellulose ether, e.g. methyl or ethyl cellulose and a wetting agent, e.g. sulphonates, or sulphates of long chain organic compounds.  Application may be by spray or brush, and when reaction is complete the light fluffy layer of silica may be removed by brush, dipping in water or by water or air spray. Enhanced protective effect is obtained by aftercoating with an aqueous paste of a water soluble hexavalent chromium compound, e.g. sodium dichromate and chromic acid, and silica aerogel in a similar manner.
Patent GB-1353060-A (GB)
Title: Mulit-wire structure and method of making same
IPC: H01B13/02
Filed: 1971-04-19
Abstract: 1353060 Making wire ropes AMERICAN CHAIN & CABLE CO Inc 19 April 1971 [27 March 1970] 26284/71 Heading D1T A wire strand, Fig. 5, comprises a plurality of strips of flat wire 2' wrapped helically in side-by-side relationship about a core member 1, each wire having a permanent preformed helical twist about its longitudinal axis such that each strip of flat wire is able to be wrapped about the core 1 free of residual stress, the wires 2' being then radially compressed into place. Each flat wire strip 2' may be of steel; or of copper with a reinforcing core 2a of a high yield strength material. There may be an outer wrapping 40 of spaced turns of flat wire. Fig. 1 shows the core 1 passing through a rotating circular support 7 carrying forming members 8 around its periphery. The flat strips 2 pass one through each forming member 8 and in doing so are deformed to produce the aforesaid helical twist. The core 1 and helical strips 2 pass to a wrapping station B where pairs of grooved pressure rolls compress the strips 2 onto the core 1. The resulting wire strand structure 6 is drawn off by a pair of endless belts 4 and 5.
Patent GB-278716-A (GB)
Title: Improved process for precipitating viscose solutions
IPC: D01F2/08
Filed: 1927-10-05
Abstract: 278,716. I. G. Farbenindustrie Akt.- Ges. Oct. 5, 1926, [Convention date]. Cellulose xanthates, processes for making filaments and other products from.-Precipitating baths for viscose, particularly such as are used for the manufacture of artificial silk &c., are saturated with respect to sodium sulphate and contain a high percentage of sulphuric acid such that on cooling to the crystallization point trisodium hydrogen sulphate first separates. Suitable concentrations of sulphuric acid are :-at 20‹ C., 16 per cent; at 46‹ C., 17-18 per cent; at 60‹ C., 19 per cent, these percentages being the parts by weight of acid contained in 100 parts by weight of the solution.
Patent GB-1076258-A (GB)
Title: Manufacture of electron discharge devices having cathodes
IPC: H01J9/04
Filed: 1964-06-25
Abstract: 1,076,258. Thermionic cathodes. RADIO CORPORATION OF AMERICA. June 25, 1964 [June 27, 1963], No. 26332/64. Heading H1D. During manufacture of an electron tube, a layer of metal powder is applied to a cathode base member without sintering, and coated with a layer of electron emissive material, the cathode then being mounted in an electron tube assembly and thereafter heated to sinter the metal powder on to the base. In particular, a nickel sleeve, having a wall thickness of 3 to 4 mils, may be coated with a porous layer of nickel powder by dusting, cataphoresis, or spraying with a suspension of carbonyl nickel powder in a binder consisting of a 2% dispersion of nitrocellulose or methyl methacrylate in a solvent, and air dried for one minute at 150‹ C. A layer of alkaline earth carbonates, completely covering the metal powder, is then applied by spraying or dipping. Specific layer thicknesses and densities are given. The indirectly-heated cathode and other tube electrodes are then assembled between mica plates and mounted in the tube envelope. During tube processing, which includes degasing and envelope-sealing, the cathode is heated to 800‹ or 1000‹ C. for one minute or less, to activate the emissive material and sinter the metal powder to the cathode base. The process may also be applied to directly-heated cathodes comprising a nickeliron-chromium alloy base in ribbon or sleeve form, with a nickel powder coating.