baber/WOPTO huggingface dataset:
Patent GB-1099894-A (GB)
Title: A process for the extraction and purification of oxytetracycline
IPC: C12P29/00
Filed: 1966-07-19
Abstract: Oxytetracycline is isolated from a fermentation broth by acidifying to pH 1.5 to 3.0, filtering to remove the mycelium, diluting with water sufficient to prevent the formation of a solid interphase when later solvent extracted, adjusting to pH 7.5 to 8.5, and extracting with a water-immiscible solvent for oxytetracycline containing at least one atom of oxygen in the molecule; separating the organic phase and diluting it with 50-65% of its volume with an aliphatic hydrocarbon containing 6-8 carbon atoms in the molecule, acidifying to a pH of not less than 1.5 and separating the oxytetracycline from the aqueous acidic phase, e.g. by adjusting to pH 4.0 and then pH 5.0 and separating the precipitated oxytetracycline.  Prior to the final step, the oxytetracycline solution may be treated with potassium ferrocyanide to remove iron and with oxalic acid to remove calcium ions. Suitable oxygen-containing solvents are butanol, methylisobutyl ketone and butyl acetate.  The preferred aliphatic hydrocarbon is n-hexane. The oxytetracycline producing micro-organism is preferably an oxytetracycline producing mutant of Streptomyces utilis.
Patent GB-289116-A (GB)
Title: Process and apparatus for concentrating and evaporating liquids
IPC: C01D3/06
Filed: 1926-12-23
Abstract: 289,116. Salt Union, Ltd., Plumbridge, D. V., and Gibbs, W. E. Dec. 23, 1926. Spray evaporators. - Liquids e.g. brine, are evaporated by spraying them while hot in countercurrent to a relatively cool current of gas which is passed through a cooler to deposit moisture and then recirculated. The liquid is pumped by a pump 10 through a heater 9 to spray nozzles 1. The falling spray meets an upward stream of air drawn by a fan 4 over cooling coils 6 on which the entrained moisture is deposited. The solids produced by the evaporation are removed on conveyers 2, 3. In a modification a multiple effect is obtained by circulating the liquid to be evaporated in the next effect through the coils 6.
Patent GB-347575-A (GB)
Title: Improvements in the combustion and gasification of carbonaceous materials and apparatus therefor
IPC: C10B7/00
Filed: 1929-10-25
Abstract: 347,575. Gas producer furnaces. GREENE, F. C., 230, South Clark Street, Chicago, U.S.A. Oct. 25, 1929, No. 32484. [Classes 51 (i) and 55 (i).] In the partial combustion or gasefication of coal or similar fuel, the charge is advanced and its temperature increased progressively while air is passed over the hot exposed surface of the fuel without penetration, the temperature gradient being on a plane transverse to the direction of flow of the air. In the apparatus shown in Fig. 1, the coal is fed through a shoot 17 to an annular trough 23 at the periphery of a conical fuel support 22 which is mounted on wheels 26 and rotated bv gearing 29 so that spiral flanges 45 cause the fuel to ascend the outer surface of the cone 22. Part of the air enters through a conduit 31 leading past a steam injector nozzle 36 and delivering into a tube 34 and below a deflector 42, part enters through an inlet 52 leading to the space 53 around the tube 34 and through the space above the upper edge of the support 22, and part through an aperture 40 at the top. A blower induces a downward draught over the surface of the incandescent layer 47, and the gases containing carbon monoxide escape through ducts 13 to an outlet conduit 14, carrying the ash particles with them. Distillates from the under surface of the fuel pass through openings 46 into a collecting chamber 57 leading to a reservoir 58 from which the liquid condensates are collected, the vapours being drawn into the tube 34 and mixed with the air blast. The whole apparatus may be encased within a mound of loam 64. In the apparatus shown in Fig. 2, a reciprocating pusher 78 having serrations 79, and divided by longitudinal partitions, feeds the coal from a hopper 84 towards a chamber 87, an arch 91 having ridges 92 extending over the surface of the fuel. Impellers 88 hinged to the main impellers 78 push non-combustible material into the chamber 87. Air enters through an opening 95. In Fig. 5, the fuel is fed through the combustion chamber by impellers 134, comprising strips of metal. In Figs. 2 and 5, the air is supplied between the points 169, 170 where the most violent combustion takes place, and the gases which pass to between the points 169, 165 are carbon dioxide and inert gases, and here the carbon dioxide is converted to carbon monoxide and passes out of the stack pipes 71 or 132.
Patent GB-281703-A (GB)
Title: Manufacture of benziminazolone-arsinic acids
IPC: C07F9/80
Filed: 1927-12-02
Abstract: 281,703. I. G. Farbenindustrie Akt.- Ges. Dec. 2, 1926, [Convention date]. Addition to 256,243. N-Alkyl, aralkyl-, and alkylene-3:4-benziminazolone-arsinic acids are prepared by treating with arsenious acid a diazo compound obtained from an aminobenziminazolone substituted at a nitrogen of the heterocyclic ring by an alkyl, aralkyl, or alkylene group. According to the examples, 3 : 4 - benz - (N-methyl)-iminazolonearsinic acid is obtained by diazotizing 1-amino- 3 : 4-benz-(N-methyl)-iminazolone, adding arsenious acid and excess of caustic soda, and isolating the product with hydrochloric acid; in a similar way, 3 : 4-benz-(4-N-ethyl or propyl)-iminazolonearsinic acid is prepared from 1-amino-3 : 4-benz- (4-N-ethyl or propyl)-iminazolone. Aminobenziminazolones used as starting materials for the above or prepared bv treating 1- chloro-2 : 4-dinitrobenzene or 1-chloro-2 : 5-dinitrobenzene with an alkylamine, aralkylamine, or alkyleneamine e.g. ethylamine, propylamine, or allylamine, partially reducing the dinitroaniline derivative, e.g. with ammonium sulphide, whereby the nitro group adjoining the substituted amino group is reduced, treating the product with phosgene, and finally reducing the remaining nitro group.
Patent GB-1377071-A (GB)
Title: Foundry moulding sand compositions
IPC: B22C1/16
Filed: 1972-07-12
Abstract: 1377071 Foundry mould composition FOSECO INTERNATIONAL Ltd 12 July 1972 [12 July 1971] 32620/71 Heading C3N A foundry moulding sand composition comprises at least 50% by weight of a particulate refractory material, a liquid aqueous sodium silicate, and a wood flour impregnated with a liquid petroleum oil. The petroleum oil is preferably a predominantly aromatic cracking residue obtained from the catalytic cracking of crude petroleum oil. The weight ratio of wood flour to the petroleum derivative may vary between 1 : 1 and 5 : 1 and the weight ratio of impregnated wood flour to sugar from 10 : 1 to 2 : 1. The sand may also include a reducing sugar and the weight proportion of impregnated wood flour and reducing sugar may be 0À5 to 2%. Silica flour may also be added.
Patent GB-366134-A (GB)
Title: Improvements in or relating to pole structures
IPC: E04H12/10
Filed: 1930-10-31
Abstract: 366,134. Lattice poles ; constructional ironwork. WALLEN, A. C., 1468, Medland Avenue, Bronxville, New York, U.S.A. Oct. 31, 1930, No. 32801. [Classes 20 (i) and 20 (ii).] A pole section of rolled section metal is made from a blank strip formed by welding together, end to end, flat blanks 10, 11, 12 of uniform width and then bending the strip across the welds to the section required. The flat blanks .may be of the same or of different thicknesses. The pole sections are joined together to form a lattice pole by means of a connecting member 18 welded to them at 17. More than one section may be used at each side, in which case the adjacent flanges are bolted together by bolts 21.
Patent GB-1081403-A (GB)
Title: Improvements in or relating to coin-operated food-dispensing apparatus
IPC: G07F11/68
Filed: 1964-08-12
Abstract: 1,081,403. Coin-freed apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 12, 1964 [Aug. 15, 1963], No. 32823/64. Heading G4V. A coin-operated food-dispensing apparatus for delivering packages of heated food comprises a cooled space for the storage of the packages and a micro-wave source with a wave-guide for conducting micro-wave energy to a heating unit situated within the storage space. The descriptive matter is substantially the same as that dessribed in Specification 996,039. Reference has been directed by the Comptroller to Specification 996,039.
Patent GB-1096269-A (GB)
Title: A method and a device for marking materials
IPC: B23H9/06
Filed: 1965-08-02
Abstract: 1,096,269. Spark erosion. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Aug. 2, 1965 [Aug. 7, 1964], No. 32932/65. Heading B3V. [Also in Division G1] Material tested non-destructively (by electrical probing, magnetic or ultrasonic detection) and found defective is automatically marked by an electrical discharge released by signals indicating the presence of defects. Workpieces 19 may travel as fast as several metres a second under an ultrasonic inspection instrument whilst being spaced by a roller 18 in a support 17 from a graphite or metal electrode 1 insulated from the support 17. Electric power proportional to the rate of travel is applied to parallel low-frequency and high-frequency circuits 2, 3 connected across the electrode 1 and support 17. When a relay 8 associated with the inspection instrument signals the presence of a defect in the piece under test, high-frequency current in the circuit 3 produces an initiating spark to trigger the generation of high-current, low-tension sparks between the electrode 1 and the piece 19 if it is of conductive material or if not, the roller 18. Thus in either case the piece 19 is furnished with markings spaced in accordance with the speed and indicating it is defective.
Patent GB-837646-A (GB)
Title: Improvements relating to milk cans and their production
Inventor: RIDGLEY HERBERT GEORGE
IPC: B65D25/24
Filed: 1957-10-22
Abstract: 837,646. Making hollow ware; soldering. DAIRY SUPPLY CO. Ltd. Oct. 22, 1958 [Oct. 22, 1957], No. 32964/57. Classes 83 (2) and 83 (4). In making a milk can comprising a main body 1 the base of which is supported clear of the ground by a hoop 6, the hoop and at least the lower part of the body are given a preliminary tinning before their assembly, the hoop and lower part of the body being shaped to form when assembled a trap to restrict or prevent the escape of molten tin passing downwardly between the opposed faces of the hoop and body, the hoop is heated and assembled on the body and finally after the assembly of body and hoop have cooled and the hoop contracted to the body, the assembly is tinned. In an embodiment the main body comprises a lower part secured to an upper part 3, the connection being strengthened by a strap 4 welded to the parts. At least the base of the lower part and the hoop 6 are tinned, the hoop is heated to the melting point of tin and is fitted on to the lower part which seats on an inwardly directed flange 7 on the hoop, the adjacent surfaces of the body part and hoop forming the trap. The assembly is finally tinned by rotating it through a bath of molten tin and then the hoop may be soldered to the body at 10 and 11.
Patent GB-176073-A (GB)
Title: Cementing or uniting leather, leather containing rubber or rubber containing surfaces or the like together or to one another
IPC: C09J7/10
Filed: 1920-11-23
Abstract: 176,073. Peachey, S. J. Nov. 23, 1920. Compound sheet materials.-Rubber, leather, &c. are cemented together by a gel of vulcanized rubber, prepared as described in Specification 129,826 [Class 70, India-rubber &c.] or otherwise. The gel, or the solutions from which it is prepared, is spread over the surfaces to be united, which are then pressed together until the solvent has sufficiently evaporated to ensure adhesion.
Patent GB-1192963-A (GB)
Title: Bowling Pin
IPC: A63D9/00
Filed: 1967-07-18
Abstract: 1,192,963. Bowling pin. AMERICAN MACHINE & FOUNDRY CO. 18 July, 1967 [1 Aug., 1966], No. 33012/67. Heading A6D. [Also in Division C3] A bowling pin having a preshaped core encased in a synthetic resin protective cover is produced by moulding a partially cured preform of polyurethane, applying at least one preform to the pin core, centring the core and preform in a mould having a cavity conforming to the dimensions of the finished bowling pin, applying pressure to the mould until the preform flows to form an integral uniform adhering enclosing layer on the core, and curing the polyurethane. The core may be of wood, plastic or metal and may be reinforced with a mesh fabric envelope. An epoxy resin may be included in the preform.
Patent GB-1516983-A (GB)
Title: Automatic tool and machining process
IPC: G05B19/18
Filed: 1974-07-26
Abstract: 1516983 Machine tool control ALFRED HERBERT Ltd 11 July 1975 [26 July 1974] 33026/74 Heading G3N A numerically controlled machine tool 4, e.g. a lathe, miller or grinder, cuts a workpiece 2 during a machining cycle while a resiliently biased monitoring device 15, coupled to follow the tool movements, engages the surface of a previously machined component 13 to detect errors from the programmed dimensions. The errors are used to correct the machining of workpiece 2 during the current, or a subsequent, cycle. In Fig. 1, reader 16 produces a position signal which, with the error signal from device 15, passes via amplifiers 14a, 16a to manipulator 17 which sums the signals and, via control system 18, drives control 19 which continuously imposes the required offset for tool 4. In another embodiment Fig. 2 (not shown), the component 13 errors are determined in one cycle and corrected machining occurs in a subsequent cycle.
Patent GB-330511-A (GB)
Abstract: 330,511. Ellis, G. B., (Soc, des Usines Chimiques Rh¶ne-Poulenc). March 1, 1929. Divided on 329,721. Acyl halides; acetaldehyde; halogen acetaldehyde; halogen. and dihalogen-ethyl esters.-Acyl halides and acetaldehyde or halogen acetaldehyde are produced by dissociating alpha-halogen- or alpha-#- dihalogen-ethyl esters by passing their vapour through heated tubes which may contain catalysts. The catalysts mentioned are pumice, refractory earths, Kieselguhr, activated charcoal, and silica gel, which may carry acid activating agents such as mineral acids such as sulphuric or phosphoric acid, acid salts such as bisulphates and acid phosphates, zinc or cadmium halides, or the acid catalysts mentioned in Specification 329,721. Increased or diminished pressure may be employed. The halogen esters may be the crude product of the action of halogen acids or halogens or vinyl esters. In the examples (1) alpha-chlorethyl acetate vapour is passed over pumice at 250-300‹ C., the condensate being acetyl chloride, acetaldehyde, and unchanged ester; (2) alpha-#-dichlorethyl acetate vapour is passed over pumice at 250‹ C.; (3) alpha-chlorethyl acetate vapour is passed through a tube heated to 360-380‹ C. Specification 325,115 also is referred to.
Patent GB-1080618-A (GB)
Title: Hybrid semiconductor circuits
Inventor: BOSWELL DAVID
IPC: H01L41/12
Filed: 1966-07-22
Abstract: 1,080,618. Mounting semi-conductor devices on printed circuits; printed circuits. STANDARD TELEPHONES & CABLES Ltd. July 22, 1966, No. 33056/66. Headings H1K and H1R. An insulating substrate of glass or ceramic may form the base of a printed circuit and bears conductive lands from which extend conductive fingers integral therewith but spaced from the substrate and which make contact with electrode areas on an integrated circuit mounted on and/ or under the fingers. Several integrated circuits and other components may be mounted on the substrate. To make a particular structure, the substrate is first coated in selected areas with aluminium, and gold is then coated over the entire substrate and photoresist masked and etched to the desired pattern of lands and fingers (or it may be deposited in the desired pattern). Those portions of the fingers which are to be spaced from the substrate are formed over the aluminium deposits. The metal coatings may be applied by vapour deposition, chemical plating, spraying, painting, or gluing. The aluminium is then selectively etched away using a solution of sodium hydroxide and potassium bromide. The fingers may be pulled further away from the substrate by suction nozzles so that an integrated circuit may be slid beneath them and, if desired, bonded to the substrate. The fingers are then joined to the electrodes by thermocompression bonding, for example. As a variant the integrated circuit may be inverted and placed on the fingers to which the electrodes are bonded by heating the structure in an oven or, if the substrate is transparent, by the use of laser welding. A portion of the integrated circuit may be bonded directly to the substrate to take the weight off the fingers. If the integrated circuit is to be mounted only on the fingers the aluminium need not be etched away until bonding has taken place. In a modification some fingers may be pulled away from the others so that a circuit may be slid between the two sets of fingers which are then bonded to electrodes on the two faces of the circuit.
Patent GB-406103-A (GB)
Title: Improvements in holders for index cards
IPC: B42F17/18
Filed: 1932-11-23
Abstract: 406,103. Visible card indexes. WHALLEY, W. R. M. DE, and RONEO, Ltd., Roneo Building, Holborn, London. Nov. 23, 1932, No. 33063. Addition to 290,461, [Class 146 (i)]. [Class 146 (i).] In visible card indexes in which the cards are supported by bars constructed as described in the parent Specification, the thimble at each end of each bar is formed in two parts A, B rotatable relatively to one another so as to facilitate turning a card to inspect both its faces. The part B is bored to receive loosely a pin F which is rigidly secured to the part A. Alternatively the pin F is formed integrally with the part B. The end of the card-supporting bar is received in the part A which can rotate relatively to the part B, the latter engaging beneath a channel on a tray in the usual way.
Patent GB-1195479-A (GB)
Title: Method for the Manufacture, by Moulding, of Lined Footwear
Inventor: BAUDOU ANTOINE JOSEPH GEORGES
IPC: B29B13/00
Filed: 1968-07-11
Abstract: 1,195,479. Boots &c. A. J. G. BAUDOU. 11 July, 1968 [12 July, 1967], No. 33216/68. Heading A3B. [Also in Division B5] A lined footwear article of the type having two overlapping fastening flaps, such as a ski-boot, is injection or compression moulded in a mould comprising a last 3, over which the lining 5 is shaped, mould halves 1 and 2, and a sole block 11. The mould half 2 carries a tongue 6 which projects between and separates the edge regions 7 and 8 of the lining during the moulding which edge regions line the inner surfaces of the overlapping flaps.
Patent GB-648528-A (GB)
Title: Improvements in and relating to the treatment of metal sulphates
IPC: C01B13/18
Filed: 1948-12-24
Abstract: Metal oxides are produced by partially dehydrating the hydrated sulphate, e.g. ferrous, zinc, or copper sulphate, by introducing it, in crystalline form, into suspension in a heated gas, and thereafter subjecting it to a higher temperature to decompose it to the oxide. The degree of dehydration may correspond with the trihydrate, so as to ensure that the material does not fuse or coalesce in the later heat treatment.  A suitable drying plant is disclosed in Specification 592,354, [Group XIII].  A rotary furnace or kiln or multi-hearth (Herreshoff) furnace may be used for the roasting, a temperature of 600-1000 DEG  C. being suitable. Carbon may be added to the partially dehydrated sulphate before roasting.  Specification 510,733 also is referred to.
Patent GB-376168-A (GB)
Title: Improvements in or relating to cartridge type fusible electric cut-outs
IPC: H01H85/157
Filed: 1931-12-01
Abstract: 376,168. Fusible cut-outs. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and POOLEY, A. M., 21, Birches Lane, Kenilworth, Warwickshire. Dec. 1, 1931, No. 33308. [Class 38 (i).] The porcelain or like body a of a cartridge-type fuse is made with one or more longitudinal grooves b into which parts of the end caps c, c<1> can fit or be depressed. The fuse wire w runs between a hole in a central depression in the cap c and a washer f to which the cap c<1> can be secured by solder passing through holes j. Solder also secures the wire wand cement, introduced between the body a and the caps, renders the fuse watertight.
Patent GB-447684-A (GB)
Title: A method for the production of moulded articles from artificial resin and artificial resin-containing mixes
IPC: B29C67/00
Filed: 1934-11-19
Abstract: The method described in the parent Specification is carried out at such a speed and within such a temperature range that the extruded mass is not yet completely converted into the resite condition, after which subsequent hardening is effected.  The moulding operation may either be carried out at the ordinary temperature but at greater speed or at a lower temperature and the usual rate.  The extruded article may be substantially unhardened or partly hardened, and while still in a hot and flexible condition it may be bent or curved to any shape desired.  The subsequent hardening may be produced by heat and pressure or by simple heating.
Patent GB-466221-A (GB)
Title: Improvements in or relating to braces for personal wear
IPC: A41F3/02
Filed: 1935-12-03
Abstract: 466,221. Braces for personal wear. CHILVERS, J. Y., and CHILVERS, J. J. Dec. 3, 1935, No. 33472. [Class 141] A brace tongue is provided with buttonholes 3 and 4 at opposite ends and is adapted to be folded in either of the positions shown in Figs. 1 and 2, means such as studs 5 and 7 and studholes, being provided whereby the tongue may be secured in its folded positions.
Patent GB-1390255-A (GB)
Title: Lamps
IPC: B63B45/04
Filed: 1972-07-18
Abstract: 1390255 Supporting lamps AQUA-MARINE MFG Ltd 18 July 1972 [7 Sept 1971] 33508/72 Heading F4R A navigation lamp is mounted at the top of a tubular post 11 the lower end of which is received in a bushing 21 having a tapered skirt 22 disposed in a tapered opening 18 in a mounting bracket 14 adapted to be secured to the deck of a boat. The bushing has an axiallyextending tapered slot (26) to receive an axial key (20) in the opening 18 so that when a screw cap 30 is tightened on the threaded neck 23 of the bushing the post, bushing and bracket are clamped tightly together. Complementary electrical connectors 31, 38 on the bracket and post convey power to the lamp and permit ready disengagement of the post. (For Figure see next page.)
Patent GB-986736-A (GB)
Title: Process for producing glutamic acid from fermentation broth
IPC: C12P13/14
Filed: 1963-08-23
Abstract: Glutamic acid is obtained from a fermentation broth containing it by adding a solution containing zinc glutamate and mineral acid to obtain a pH of 2.5-4.0, crystallizing out and separating the glutamic acid, adjusting the pH of the mother liquor to 5.5-7.5, and crystallizing and separating zinc glutamate; this may then be used to treat a subsequent portion of fermentation broth.  Additional zinc ions may need to be supplied to the mother liquor after crystallization of glutamic acid.
Patent GB-1153006-A (GB)
Title: Improvements in or relating to Liquid Level Control Systems using Thermistors
Inventor: COUFFER ROBERT WILLIAM
IPC: D06F39/08
Filed: 1966-07-26
Abstract: 1,153,006. Liquid level control systems. DOLE VALVE CO. July 26, 1966, No.33654/66. Heading G1N. [Also in Division D1] The level of water in a washing machine is sensed by a selected one of a number of thermistors 42, 43, 44 Fig.1 successively covered by the water as it rises in the wash tub 12, the resulting change in temperature and resistance of the selected thermistor stops the water flow and causes the timer to proceed to the next operation in the washing cycle. Level selection is effected by manual operation of a switch 42b, 43b or 44b.