baber/WOPTO huggingface dataset:
Patent GB-1152756-A (GB)
Title: Improvements in or relating to Means for Connecting Together Pipes of Dissimilar External Diameter
Inventor: GLOVER JOHN BENJAMIN
IPC: F16L17/03
Filed: 1967-10-28
Abstract: 1,152,756. Pipe couplings. HEPWORTH IRON CO. Ltd. 28 Oct., 1967, No. 49106/67. Heading F2G. Pipes of dissimilar external diameters are connected together by a slightly resilient synthetic plastics sleeve 3, Fig. 1, having at one end means for securing and sealing to the larger pipe and having at the other end an inwardly extending annular flange 4 terminating in an inwardly extending annular lip 5 with a reduction in thickness between the flange and the lip. The sleeve may be of modified or unmodified 'rigid' polyvinyl chloride, polycarbonate, polyacetal, acrylonitrile butadiene styrene and polypropylene and the sealing ring 8 may be of natural or synthetic rubber. Alternatively the means for securing and sealing the larger pipe may be an outwardlyextending annular flange for fitting in a pipe socket to be secured in place by cement mortar.
Patent GB-1392204-A (GB)
Title: Information records
IPC: H04N5/76
Filed: 1972-03-21
Abstract: 1392204 Recording and playback RCA CORPORATION 21 March 1972 [22 March 1971] 49430/74 Divided out of 1392201 Heading G5R A recording, e.g. of television signals, takes the form of deformations 75 of the bottom of a constant-width constant-pitch spiral groove 15 having sidewalls of curvilinear cross-section which is substantially constant and independent of the recorded signals. A recording process is described in Specification 1,392,203.
Patent GB-994252-A (GB)
Title: Steroids
IPC: C07J75/00
Filed: 1963-12-16
Abstract: The invention comprises steroids having the formula <FORM:0994252/C2/1> in which a double bond may be present in the 21, 22-position; when R = H(OH) or H(OR1), a double bond is present in 5, 6-position; when R = O, a double bond is present in 4, 5-position; and R1 is an acyl radical derived from an aliphatic, cycloaliphatic, or aromatic acid having 1-9 carbon atoms; and process for the preparation thereof by reacting a 17a -hydroxy-pregnenolone - 20 - ketal - 3 - acyl ester with dimethylformamide and phosgene or phosphorus oxychloride to obtain a 21-methylene-17a  - oxido - pregnenolone - 3 - acylester which may be catalytically hydrogenated to obtain a 21 - methyl - 17a ,22 - oxido - pregnenolone - 3-acylester. The latter two compounds may be subjected to acid hydrolysis to obtain 21-methylene - 17a ,22 - oxido - pregnenolone and 21 - methyl - 17a ,22 - oxido - pregnenolone which may be oxidized to obtain 21-methylene and 21-methyl-17a ,22-oxido progesterones.  Pharmaceutical compositions having anti-aldosteronic, anti-inflammatory and progestative activity and containing the above compounds are employed orally in tablets, powders, or pills or parenterally.
Patent GB-1405914-A (GB)
Title: Electrical circuit breaker
IPC: H01H71/50
Filed: 1972-10-27
Abstract: 1405914 Automatic circuit-breakers TOKYO SHIBAURA ELECTRIC CO Ltd 27 Oct 1972 49675/72 Heading H1N In an overload-responsive circuit-breaker of the kind having a tension spring 28 connected between a pivoted operating handle 22 and the knee pivot 27 of a toggle 25, 26 extending between a pivoted release member 24 and a pivoted contact-carrying arm 19, there is provided a further member 29 pivotally mounted on the release member 24 so as to move between one of the toggle links and a fixed guide member 31 when the circuit-breaker is tripped open so as to prevent rebound of the contact-carrying arm from the open position.
Patent GB-1122673-A (GB)
Title: Low-temperature fractionation
IPC: B01D3/14
Filed: 1965-11-24
Abstract: 1,122,673. Cold separation of gas mixtures; refrigeration. UNIVERSAL OIL PRODUCTS Co. 24 Nov., 1965 [3 Dec., 1964], No. 49860/65. Headings F4H and F4P. A low temperature fractional distillation column 18 is operated in conjunction with a heat pump employing a multi-stage refrigeration system in which vaporous refrigerant is passed from a compression stage higher than the lowest of multi-stage compressor 43 by line 30 to heat the reboiler 28 of the column, the cooled refrigerant is separated in separator 35 into vapour in line 47, which is returned to the highest stage of compressor 43, and liquid in line 36, which is expanded into intermediate pressure load 40 and again separated in separator 38, from which liquid in line 39 is taken to cool the overhead condenser 20 of the column then returned to the lowest stage of compressor 43, and vapour from the highest stage of the compressor is expanded into high pressure load 33 and then passed to separator 35. Part of the liquid refrigerant in line 39 is expanded into low pressure load 48 and returned to the lowest compression stage while vapour from separator 38 is returned to an intermediate compression stage. The description relates to separating an ethane-ethylene mixture using propylene as refrigerant and the cooling facilities of 33, 40 and 48 are used in earlier stages of obtaining the liquid distillation feed from a hydrocarbon pyrolysis fraction.
Patent GB-499754-A (GB)
Abstract: 499,754. Fluid-pressure servomotors. TERRY, W. R. July 27, 1937, No. 20684. [Class 135] [Also in Groups XXVI, XXIV, and XXXV] 'The flow of liquid delivered wholly or partly by a variable-speed pump 10 is maintained constant by altering the ratio of a variable-speed gear between the pump 10 and a constant-speed motor 15 in accordance with variations in the rate of flow of the liquid. The liquid discharged from the pump passes through a Venturi tube, the body and throat of which are connected by pipes 18 to either side of a diaphragm 64 with control weight 21. The diaphragm is coupled by rods 22, 63 to a valve 62 in a piston 58 receiving pressure fluid from pipe 61. Valve 62 controls the leakage of fluid through the piston which is connected by rods 60, 35 to the pivoted bracket 32 carrying the motor 15. The motor drives the pump 10 through a wedge-belt 29 and cone pulleys 30, 31, the latter being formed in two spring-pressed axiallymovable sections.
Patent GB-1186874-A (GB)
Title: Fluid Control Valve Assemblies
Inventor: JOHNSON MAURICE REGINALD
IPC: F16K31/12
Filed: 1966-11-10
Abstract: 1,186,874. Valves. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 30 Oct., 1967 [10 Nov., 1966], No. 50379/66. Heading F2V. A valve 2, adapted to supply fluid pressure to one of two motor chambers 35, 36, whilst simultaneously venting the other of the two chambers to atmosphere, comprises a spool 10 which has two lands 11 and 12, each carrying a sealing ring 13, and which is movable between two extreme positions in the first of which pressure inlet port 5 is connected to service port 8 and service port 6 is vented to atmosphere via port 7, and in the second of which pressure port 5 is connected to service port 6 and service port 8 is vented via port 9. Movement of the valve from the first position, i.e. that shown, to the second position is effected by depressing a push-button 29, which button has a domed end 28 in engagement with a slidable and rockable latch member 21 having a domed surface 22, against which surface 22 the spool is biased by a spring 14, and two projections 23 and 24, such movement of the button resulting in projection 23 becoming disengaged from a shoulder 25 and projection 24 engaging a shoulder 26. Repeat operation of the button reverts the valve to its first position.
Patent GB-1417584-A (GB)
Title: Assemblied of purlins or beams and sag rods
IPC: E04B7/02
Filed: 1972-11-01
Abstract: 1417584 Sag rod connections SANDERS & FORSTER LTD and J F D WOOD 12 Nov 1973 [1 Nov 1972] 50419/72 Heading E1W [Also in Division F2] A channel shaped sag rod is connected to a purlin or beam 10 by means of a plate 13 extending from the side face of the purlin and having an upstanding lug 15 which engages in a longitudinally extending slot 12 in the sag rod end. The plate 13 may be releasably secured to the beam 10 by means of a key type engagement, the lower slot 14 engaging the slot 19 to prevent further accidental rotation of the plate. The sag rod may have a rounded or square channel base.
Patent GB-1201276-A (GB)
Title: Improvements in or relating to medical implements
Inventor: MISHKIN SIDNEY
IPC: A61B10/00
Filed: 1967-11-08
Abstract: 1,201,276. Brushes. S. MISHKIN and R. E. BIDWELL. 8 Nov., 1967 [14 Nov., 1966], No. 50879/67. Heading A4K. [Also in Division A5]  In a surgical specimen collecting device, a sponge body 22 is pressed, with rubbing, against a test surface 14a, so that the hollow ground ends of spines 20 engage and abrade it. On releasing the pressure, the spines 20 are retracted within the sponge body 22 and deposit the cellular and bacterial material, adhering to them, on its surface. A plastics handle 16c is secured to an injection moulded body 18 having integral spines 20.
Patent GB-1194395-A (GB)
Title: Improvements in or relating to Spool Assemblies
Inventor: ECKERT HANS
IPC: B65H59/02
Filed: 1967-11-09
Abstract: 1,194,395. Spool support. SCHNELLFLEOHTER BERLIN VEB. 9 Nov., 1967, No 50926/67. Heading D1T. A plurality of supply spools 3, Fig. 1, are rotatably mounted on a common stationary shaft 2 with non-rotating plates 4 disposed between the spook 3. By rotating a nut 7, the compression exerted on the assemlbly by springs 5 is adjustable to control the draw-off tension in the material 8. To prevent the plates 4 from rotating, the shaft 2 is formed with a flat (2a) Fig. 2 (not shown) and the plates 4 are formed with central apertures corresponding to the resulting cross-section of the shaft 2. There may be non-rotating plates 4 between the springs 5 and the spools 3. The sides of the plates 4 adjacent the spools 3 may be covered with a brake lining material
Patent GB-1202702-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: ASKAM JOHN FAIRBURN
IPC: B29D30/00
Filed: 1966-11-15
Abstract: 1,202,702. Moulding pneumatic tyres. DUNLOP CO. Ltd. 9 Nov., 1967 [15 Nov., 1966], No. 51115/66. Heading B5A. [Also in Division B7] A method of manufacturing a pneumatic tyre comprises building a tyre casing of uncured rubberized cord material with or without an uncured tread portion of elastomeric material, moulding the casing to its desired final configuration, and at least partially curing the casing, applying an uncured tread portion of elastomeric material to the moulded and at least partially cured casing except when the tread portion is built on to the casing and curing and moulding the uncured tread portion upon the at least partially cured casing. Preferably, the casing is cooled during curing and moulding of the tread portion to prevent overcure. The outer surface of the at least partially cured casing may be buffed before the tread is applied thereto. The latter may be applied by placing the casing between parallel side members, applying the tread portion to the outer surface of the casing between the members and curing and moulding the tread portion between the members and a plurality of movable moulding segments applied to the outer surface of the tread portion. Alternatively, the completelybuilt, uncured tyre is cured in two stages. Firstly, the casing is at least partially cured by heating it in a mould which has no tread pattern. Then, the tread and, if necessary, the partially cured casing are heated to completely cure the tyre, a tread curing ring provided with a tread pattern moulding matrix being used.
Patent GB-1223763-A (GB)
Title: Process for the preparation of chymotrypsin b
IPC: C12N9/76
Filed: 1968-10-29
Abstract: 1,223,763. Chymotrypsin B. L'OPOCHIMIE. 29 Oct., 1968 [3 Nov., 1967], No. 51160/68. Heading C3H. In a process for obtaining chymotrypsin B by a fractionated precipitation of the proteins contained in a pulpy pancreas mixture followed by dissolution of the final cake in cold water, activation with trypsin and chromatographic purification, a first amount of ammonium sulphate is added to reach a degree of saturation of about 0À2, the mixture obtained is then filtered free of proteins of very high molecular weight and non-proteinaceous impurities, a second amount of ammonium sulphate is added to the filtrate to reach a degree of saturation comprised between 0À4 and 0À5 and the resulting mixture is filtered, giving a final cake the weight of which is approximately equal to 20% of that of the raw mixture of precipitable proteins contained in the aqueous extract before adding thereto said second amount of ammonium sulphate, said cake is redissolved in water, trypsin is added to the resulting solution in a quantity substantially equal to 1/40 of the weight of proteins contained in said solution, as determined from spectrophotometric readings, and the chymotrypsin B contained in the trypsinactivated solution is separated from other enzymes and proteins by a single chromatography. The cake may be dialysed to remove ammonium sulphate before the activation step.
Patent GB-1325800-A (GB)
Title: Method of purifying polymerizable organic substances
IPC: C08G2/00
Filed: 1971-11-03
Abstract: 1325800 Purifying polymerizable substances SOC ITALIANA RESINE SpA 3 Nov 1971 [12 Nov 1970] 51189/71 Heading C2C [Also in Division C3] Polymerizable organic substances i.e. cyclic ethers, lactams, lactones, olefins, vinyl compounds or aldehydes are purified by contacting them, at or below 130 C., in liquid form, with a porous absorbent having a pore diameter of 10<SP>1À3</SP>-10<SP>5</SP> , a surface area of at least 1 m<SP>2</SP>/gm and comprising a cationic ion exchange resin having carboxylic, sulphonic or phosphoric acid groups in the form of alkali metal or alkaline earth metal salts. The resin may be a carboxylated polyphenol, polyacrylate acid, sulphonated polyphenol, sulphonated polystyrene or the product of reaction of styrene and a divinyl monomer. In the Examples trioxane, caprolactam, 13 dioxolane, and caprolactone are purified.
Patent GB-1276049-A (GB)
Title: Opposed vortex combustion chamber
Inventor: VELIE WALLACE W
IPC: F23D11/40
Filed: 1970-10-28
Abstract: 1276049 - Liquid fuel burner NORTH AMERICAN ROCKWELL CORP 28 Oct 1970 [29 Dec 1969] 51293/70 Heading F4T In a liquid fuel burner, atomizer 16 injects a spray of fuel into a combustion chamber 40 formed within a tubular housing 11 on one side of a baffle plate 42 and air is introduced into a peripheral space on the other side of the baffle plate 42 and flows via apertures 48 and 50 to form longitudinally extending counter-rotating vortices. Air from apertures 48 and 50 also cools the combustion chamber walls. A peripherally extending opening 60 in baffle plate 42 near an end closure plate 46 emits air across the end of the combustion zone 40. In another embodiment (Fig. 4, not shown) two atomizers and two baffle plates are used, four vortices being produced. The atomizer 16 comprises a sphere 24 over which fuel is fed from a conduit 22, compressed air being supplied via conduit 30 to a slot 32. Surplus fuel is returned to the supply source via conduit 28. Ignition means such as arcing electrodes are provided.
Patent GB-1512232-A (GB)
Title: Device for aid in teaching accounting
IPC: G09B19/18
Filed: 1975-04-14
Abstract: 1512232 Accounting game S M ZEGEL 14 April 1975 [19 April 1974] 51301/77 Divided out of 1512231 Heading A6H [Also in Divisions B6 and G5] An accounting game or teaching aid includes a plurality of totalizers, e.g. 64' having number wheels 74', 76', 78', 80', which can be manually set to indicate total credit or debit, and each having a slot and window 86 for accommodating and displaying a tag 46 denoting the nature of the account. In an accounting game, sheets setting out the facts of a business are provided and the aim is to produce the accounts therefor.
Patent GB-1471968-A (GB)
Title: Continuously operable stack transport device
IPC: B65H3/48
Filed: 1974-11-27
Abstract: 1471968 Sheet pile tables POLYGRAPH LEIPZIG VEB 27 Nov 1974 [28 March 1974] 51342/74 Heading B8R [Also in Division G3] A continuously operable pile table lift supports a pile 1 of sheets on a pallet 2, the table 3 being raised quickly to an operative portion in which the uppermost sheet is adjacent a jet separator 10, by an asynchronous motor 8 via chains 4, 5, (6), (7), Fig. 2 (not shown). A light sensor 9 then actuates an electric clutch which transfers the drive coupling from the motor 8 to a D.C. motor 12. As the pallet 2 is raised, rods 2<SP>1</SP> associated therewith engage auxiliary stack support rails 18, 19 mounted on articulated guide rails 18<SP>1</SP>, 19<SP>1</SP>. These spring back from the dotted to the full line positions shown when the rods 2<SP>1</SP> have passed the support rails 18, 19, and this triggers a contact 16 which energizes a second D.C. motor 17 to quickly raise the support rails 18, 19 back into engagement with the rods 2<SP>1</SP> thereby to support the remainder of the pile. A contact 19a then causes the D.C. motor 17 to lift the pile at the same speed as did the motor 12 which is simultaneously switched off. The table 3 can then be lowered by motor 8 for pile replenishment. A generator 14 coupled to the drive of the separator and a machine to which the sheets are to be fed, generates a target voltage which is fed via a thyristor voltage regulating device (15), Fig. 3 (not shown), to the motors 12 and 17 to control their speed. The regulating device is adjustable via a potentiometer (37) for sheet thickness, and if a cyclically operable feeler finger 21 senses that the uppermost sheet is too high or low, an associated vane (22), Fig. 4a (not shown), produces a signal by inductance which actuates a motor (36) to correct the potentiometer setting.
Patent GB-1157199-A (GB)
Title: Process for the preparation of Zearalane
IPC: C07C303/28
Filed: 1967-11-13
Abstract: 1,157,199. Zearalane. COMMERCIAL SOLVENTS CORP. 13 Nov., 1967 [13 Dec., 1966], No. 51426/67. Heading C2C. Zearalane, a compound having the formula is prepared by heating a resorcylate of the formula with p-toluenesulphonic acid or sodium ethoxide. The ethyl 6-(10-hydroxyundecyl)-#- resorcylate reactant may be prepared by the following series of reactions: (a) reacting 10- undecenal-1 with methylmagnesium iodide and hydrolysing the intermediate to 11-hydroxy-1- dodecene, (b) reacting the latter with 2-methyl propene in the presence of a mineral acid to obtain 11-t.-butoxy-1-dodecene, (c) reacting the latter with diisoamylborane and hydrogen peroxide to obtain 11-t.-butoxy-1-dodecenol, (d) esterifying the latter with p-toluene sulphonyl chloride, (e) heating the resulting sulphonate with dimethylsulphoxide and sodium bicarbonate to obtain 11-t.-butoxydodecanal, (f) reacting the latter with malonic acid and acidifying the reaction mixture to obtain 13-t.-butoxy-trans-2- tetradecenoic acid, (g) esterifying this acid with diazomethane to obtain the methyl ester, (h) condensing this ester with ethyl acetoacetate in the presence of sodium ethoxide to obtain the monosodium salt of ethyl 6-(10-t.-butoxyundecyl) - dihydro - # - resorcylate, (i) treating this sodium salt with bromine to obtain ethyl 3 - bromo - 6 - (10 - t. - butoxyundecyl) - dihydro - # - resorcylate, (j) reacting the latter with sodium ethoxide and a mineral acid to obtain ethyl 6-(10-t.-butoxyundecyl)-#-resorcylate, and (k) treating this ether with trifluoroacetic acid, followed by neutralization with sodium ethoxide to obtain the desired hydroxyalkyl resorcylate.
Patent GB-1485288-A (GB)
Title: Security seals
IPC: B65D33/34
Filed: 1974-11-29
Abstract: 1485288 Covering wearing apparel ITW Ltd 28 Nov 1975 [29 Nov 1974 30 Aug 1975] 51700/74 and 35842/75 Heading A4X [Also in Division B6] A security seal, intended for use in closing the mouths of and preventing tampering with the contents of polyethylene bags, comprises two elongated portions 1 which can be secured by at least two pairs of co-operating latching members 3, 4, at least one of the said pairs forming a non-return latch and a weakened portion. When the portions are separated the weakened portion breaks. In use the seal is used to close the upper end of a polyethylene bag placed mouth upwards over clothing on hangers, and ribs between the seal portions locate the stems of the hangers. The latching members 3 pierce the bag between the hangers and enter the members 4, in which they are held by non-return fingers. The seal acts to exclude dust and dirt from the bag, as well as giving an indication of any tampering. Preferably the portions 1, hinge 2 and members 3, 4 are moulded from polypropylene, high density polythene or nylon, either as a single unit or as parts which are assembled by welding.
Patent GB-1434824-A (GB)
Title: Carbon artifacts
IPC: C04B35/532
Filed: 1972-11-10
Abstract: 1434824 Carbon artifacts COAL INDUSTRY (PATENTS) Ltd 7 Nov 1974 [8 Nov 1973] 51899/73 Heading C1A [Also in Divisions C7 and H1] Carbon artifacts are produced by mixing together a carbonizable binder, calcined coke grist produced from a solution or extract of coal, and between 1 and 40% of carbon fibres based on the weight of the coke grist, the fibres are randomly dispersed by mixing at a temperature at which the binder is a liquid, finally the mixture is shaped and carbonized, and optionally graphtiized. Both the carbon fibres and binder may be prepared from a solution or extract of coal. The carbon fibres are preferably present in an amount of less than 10%. The binder may be an electrode binder pitch, e.g. coal tar pitch, petroleum pitch or bitumen, and is preferably used in an amount of from 20 to 35% by weight based on the weight of the shaped mixture. In one preferred method the calcined coke grist and binder are first mixed at about 40‹ C. above the binder's softening point, then cooled to a solid before grinding and mixing with carbon fibres. This mixture is subsequently heated and extruded at about 20‹ C. above the softening point of the binder. Other preferred methods are given, e.g. the carbon fibres are mixed initially with the solution or extract of coal used for making the calcined coke grist and this mixture is then coked and further mixed with binder; alternatively the carbon fibres and binder are first mixed and the calcined coke grist is added subsequently in this method. Water and a wetting agent may be added. The produced artifact is suitable for use as an electrode.
Patent GB-1171639-A (GB)
Title: Improvements relating to portable hairdryers
IPC: A45D20/22
Filed: 1966-11-22
Abstract: 1,171,639. Hair drier. RONSON CORP. 22 Nov., 1966 [26 Nov., 1965], No. 52303/66. Heading A5R. A portable hair drier comprises a soft flexible hood for fitting about the head and an electric fan-heater unit supported by the hood for supplying a stream of warm air thereto. The unit comprises a housing 20 in which is mounted a motor 30 which drives a rotor 42 provided with impeller blades 48. Guide vanes 38 extend radially from a stator 36 mounted on the casing of the motor. Air impelled by rotation of the blades 48 is directed by vanes 38 past heating wires 52 wound on frame 51. The discharge end 22 of housing 20 is provided with bayonet fasteners 23, 24 for detachably securing the unit to a collar 17 of an adaptor ring 14 which is positioned in the inlet 13 of the hood. An elastomeric damper ring 65 may be provided at the inlet end 25 of the housing. A rectifier and thermostat may be mounted within the housing.
Patent GB-1093429-A (GB)
Title: Non-contacting displacement gauge
IPC: G01B7/02
Filed: 1964-12-28
Abstract: 1,093,429. Transistor switching circuits. RELIANCE ELECTRIC & ENGINEERING CO. Dec. 28, 1964 [Dec. 26, 1963], No. 52575/64. Heading H3T. [Also in Divisions G1 and H2] A bridge modulator comprises a transistorswitching circuit as shown in Fig. 2. An oscillator, not shown, supplies square waves 180 degrees out-of-phase to lines 76, 78, through complimentary emitter follower pairs 94, 96, and 98, 100 to gate switching transistors 104, 106, 108, 110, so that an A.C. output appears on lines 112, 114, having a peak-to-peak amplitude of twice the D.C. input on lines 90, 92.