baber/WOPTO huggingface dataset:
Patent GB-1186952-A (GB)
Title: Process for producing L-Tryptophan
IPC: C12P13/22
Filed: 1968-06-04
Abstract: 1,186,952. L-Tryptophane by fermentation. KYOWA HAKKO KOGYO CO. Ltd. 4 June, 1968 [17 June, 1967], No. 26548/68. Heading C2C. L-Tryptophane is produced by cultivating a hydrocarbon assimilating micro-organism capable of producing L-tryptophane from anthranilic acid and belonging to the genera Arthrobacter, Brevibacterium, Candida, Streptomyces and Hansenula, under aerobic conditions in an aqueous nutrient medium containing at least one hydrocarbon as the main carbon source and precursor amounts of anthranilic acid. The process is preferably conducted at pH 4À0-9À0 and between 20‹ and 40‹ C. The nutrient medium may contain between 1À0 and 5À0 mg./ ml. anthranilic acid and preferred hydrocarbon sources are n-paraffins and petroleum derivatives, e.g. kerosene. Specified organisms are B. ketoglutamicum ATCC 15587, C. tropicalis ATCC 15114, C. zeylanoides ATCC 15585, H. anomala ATCC 20170, A. paraffineus ATCC 15590, and S. antibioticus ATCC 10382.
Patent GB-1319074-A (GB)
Title: Macromolecule separation device and method
IPC: G01N27/447
Filed: 1970-06-02
Abstract: 1319074 Electrochromatography S T NERENBERG 2 June 1970 [9 June 1969] 26551/70 Heading B1X [Also in Division C7] Apparatus used in the chromatographic electrophoretic or electrochromatographic separation of mixtures of macromolecules, e.g. blood serum proteins (see also Division C7) comprises a column 41 of acrylic plastics having a cooling jacket 42 and containing a granular or non granular separatory gel 52 and also having a internally grooved tubular outlet adaptor 12 which houses an electrically conducting chemically inactive gel, e.g. acrylamide or agar with a cross-linking agent in glycine-Tris buffer, which supports the separatory gel and completes an electrical path between electrodes 60, 61. A dialytic membrane 70 and filter cloth (72), Fig. 1 (not shown) may be used to separate the two gels. In one electrophoretic separation using a non granular separatory gel, e.g. acrylamide, agar or a mixture of agar with starch or acrylamide, the macromolecular mixture is eluted with a buffer solution, e.g. glycine-Tris whilst a current is passed. The gel is subsequently cut to analyse the various bands by staining. In a chromatographic separation a granular gel is used, e.g. dextran, acrylamide, exchange resins or hydroxylapatite, and the eluted fractions are recovered via adaptor outlet 67, adator inlet 64 being closed. The fractions are analysed by U.V. Spectrometry. In another form of electrophoretic separation the bands proceed to the bottom of the column and are washed out at 67 with eluent introduced via adaptor inlet 64 from reservoir 66. Gel segments cut from a column can be re-inserted at the bottom and the fractions obtained this way. In a further form of separation both electrophoresis and chromatography are used simultaneously or sequentially, advantage being taken of the fact that when the direction of electrophoresis is reversed, i.e. upwards, their different effects upon the molecules causes a greater separation.
Patent GB-395899-A (GB)
Title: Improvements in polyhydric alcohol-polybasic acid resins
IPC: C08G63/48
Filed: 1932-09-24
Abstract: The fatty acids of walnut oil, with or without the addition of walnut oil and other oils and fatty acids such as linseed or tung oils, heat treated if desired, are condensed with a polybasic acid such as phthalic anhydride and a polyhydric alcohol such as glycerol to give a resinous product.  In an example the fatty acids of walnut oil are condensed with phthalic anhydride and glycerin.
Patent GB-762716-A (GB)
Title: Improvements in or relating to the separation of 21-acyloxy pregnane or allo-pregnane derivatives from mixtures containing them
Inventor: GRAHAM WILLIAM
IPC: C07J75/00
Filed: 1954-09-14
Abstract: 17a  - Hydroxy - 20 - oxo - 21 - acyloxypregnanes (of both allo and normal series) are separated from their mixtures with 17a -hydroxy - 20 - oxopregnanes (neither of these classes of steroids containing reactive keto groups in the nucleus) by reacting the mixture. with Girard reagents T or P, and thereafter separating the 17a -hydroxy-20-oxo-21-acyloxypregnane from the Girard derivative of the 17a -hydroxy-20-oxopregnane by difference in solubility, e.g. by extraction with water, in which the Girard derivative is soluble, or by effecting the reaction in a hot alcoholic solvent, preferably methanol containing up to 20 per cent v/v acetic acid, from which the 21-acyloxy compound separates on cooling.  Such mixtures of pregnane derivatives are produced during the preparation of 17a -hydroxy-20-oxo-21-acyloxy-pregnanes from the corresponding 17a -hydroxy-20-oxo compounds by bromination and treatment with potassium acetate.  The Girard derivatives of the 17a -hydroxy-20-oxo steroids are subsequently decomposed with acid and the free oxo compound can then be re-converted to the 21-acyloxy derivative.  In examples: (1) a mixture of 21 - acetoxy - 3b ,17a  - dihydroxy-11,20-dioxoallopregnane and 3b ,17a -dihydroxy-11,20-dioxoallopregnane is refluxed with Girard P reagent in methanol containing acetic acid, the solution cooled, when 21-acetoxy-3b ,17a -dihydroxy - 11,20 - dioxoallopregnane crystallizes and is filtered off; ether is then added to the concentrated mother-liquor, precipitating the Girard derivative of 3b ,17a -dihydroxy-20-oxopregnane, which is dissolved in hot water and the free diol liberated with HCl. (2) 3b ,17a -dihydroxy - 5a  - pregnan - 11,20 - dione is brominated in chloroform containing ethanol and dry HCl gas, and the crude 21-bromo derivative refluxed in acetone with anhydrous potassium acetate, giving a mixture of 21-acetoxy-3b ,17a -dihydroxy - 5a  - pregnan - 11,20 - dione and unreacted 3b ,17a  - dihydroxy - 5a  - pregnan-11,20-dione which is then separated as in (1) above.
Patent GB-918653-A (GB)
Title: Drawing pins
IPC: B43M15/00
Filed: 1961-07-24
Abstract: 918,653. Drawing pins. HAYASHI, M. July 24, 1961 [Nov. 2, 1960; Dec. 24, 1960], No. 26682/61. Class 89 (2). A drawing pin comprises a head of a flexible material including a central portion 2 and a surrounding spaced outer portion 4 joined by an intermediate portion 5 as shown, and a pin member 1 projecting from the portion 2. There may be more than one portion 5 integral with the portions 2 and 4, the pin member 1 having an enlargement 6 mounted in the portion 2. In a modification the pin member 1 is detachably mounted in the head, a recess in the portion 2 accommodating the enlargement 6 with the pin member 1 projecting through an aperture in the recess base. The portions 2, 4, 5 may be of flexible synthetic resin.
Patent GB-1045149-A (GB)
Title: Improvements in and relating to welding
Inventor: LAMING LINDON CYRIL
IPC: B23K9/08
Filed: 1962-07-11
Abstract: 1,045,149. Welding by fusion. FORSTER WHEELER Ltd. July 4, 1963 [July 11, 1962], No. 26691/62. Heading B3R. [Also in Division H5] An arc torch for internal butt-welding of tubes to other tubes or headers comprises a stationary non-consumable electrode around which the arc is caused to orbit by a magnet. As shown, a disc electrode 20 is mounted between permanent magnets 22 on a tubular support 18 held by an insulating bush 16 which fits in the hole in the tube plate 12, in order to weld tube 10 thereto. Cooling water is circulated through the support 18 via conduits 26, 30, and an inert shielding gas may be admitted via pipe 36.
Patent GB-578905-A (GB)
Title: Improvements in or relating to spacing means for electrical condensers
IPC: H01G2/04
Filed: 1943-12-30
Abstract: 578,905. Condensers. WAYMOUTH GAUGES & INSTRUMENTS, Ltd., and WAYMOUTH, H. Dec. 30, 1943, Nos. 26748/45 and 26749/45. Divided out of 578,886. [Class 37] To space apart and secure plates as of an electric condenser, distance-pieces 10 of cruciform shape and of artificial resin, have a pair of opposite arms which can pass through slots in the plates, clips 12 being secured on the protruding arms and eyeletted thereto as at 15, flanges 14 bearing against the plates.
Patent GB-953720-A (GB)
Title: Improvements in or relating to gas flow systems of internal combustion engines constituting silencers
IPC: F01N1/08
Filed: 1961-07-24
Abstract: 953,720. Intake or exhaust silencers. L. M. BALLAMY. Oct. 23, 1962 [July 24, 1961], No. 26779/61. Heading F1B. An inlet or exhaust silencer comprises an annular cylindrical chamber 10 with a tangential inlet slot 14, the gases escaping through a slot 15 in the inner wall 12. In any exhaust interior, Fig. 1 the gases enter a longitudinal chamber 13 from which they flow through the inlet slot 14 and along the inner pipe 12 to a tail pipe 19. The chamber 13 may be omitted and the exhaust pipe 17 arranged tangentially of the chamber 10. When used as an intake silencer, one or more carburetters may be connected to the chamber 13 and the pipe 19 is connected to the engine induction pipe.
Patent GB-1314121-A (GB)
Title: Check valves especially intended for use in a power braking system
IPC: F16K15/14
Filed: 1971-04-19
Abstract: 1314121 Valves BENDIX CORP 19 April 1971 [27 April 1970] 26781/71 Heading F2V A check valve, particularly for the vacuum braking system of a vehicle operating from the intake manifold, comprises a housing 20 with inlet and outlet ports 8, 14, and a flexible valve member 28 overlying the inlet port. The valve chamber 12 is closed by a cap 38 inserted in an opening in the chamber and retained against possible backfiring pressures occurring in the manifold, by an annular retaining member 16 secured to the housing. The housing 20 and member 16 are preferably of nylon, secured by sonic welding of a projection (48), Fig. 4 (not shown), on the member 16, to an enlarged rim 30 of the housing. The cap is normally retained by a groove 32 having a flat inner surface 34 and a coned outer surface 36. The valve member is retained over a stem 22 on the housing, by a tabular projection 40 integral with the cap.
Patent GB-184402-A (GB)
Title: Process for dissolving out or recovering the metal constituents of metalliferous materials
IPC: C01G1/10
Filed: 1921-10-10
Abstract: The metallic constituents of ores, sludges, metalliferous residues, metallic wastes, alloys, &c. are dissolved by treatment with sulphuric acid and an amount of nitric acid equivalent to the metal to be dissolved, the process being carried out either under pressure, or in presence of a catalyst.  Suitable catalysts are platinum and the salts of metals with various valencies, such as vanadium, osmium, cerium, and manganese.  The invention is described by reference to copper compounds, and in an example a quantity of cupriferous waste corresponding to a total copper content of 1000 grms. is treated with 3 litres of sulphuric acid of 15.4 per cent strength, and then with 940 c.c. of nitric acid of 36 DEG  B<\>ae.  Finally, a further 7 litres of sulphuric acid are added, this acid containing a catalyst, for instance 5 mg. of osmium tetroxide or about 1 per cent manganese sulphate.  The dissolving-vessel is covered with insulating material, and after 5-7 hours the copper is nearly completely dissolved.  In another example, the solution is effected in a heat-insulated autoclave. To start the reaction, a pressure of about 1.5 atmospheres is produced by electrolysis, using insoluble anodes, after which a period of two hours suffices to complete the process.  The solution of copper sulphate obtained is electrolyzed, using insoluble anodes, and the electrolysis may be performed directly in the dissolving-vessel, thereby enabling the entire process to be carried out in one operation.
Patent GB-208818-A (GB)
Title: An improved composition or alloy for sharpening scissors, razors, or other similar cutting instruments and apparatus for use in connection therewith
IPC: B24D3/34
Filed: 1922-10-04
Abstract: 208,818. Hansen, J. Oct. 4, 1922. Drawings to Specification. Alloys.-An alloy for use in sharpening razors, scissors, &c. comprises 2 per cent antimony, 85 per cent lead, and 13 per cent tin.
Patent GB-1216878-A (GB)
Title: Process for manufacturing paper having an unglazed surface coating
Inventor: LEVY ALBERT
IPC: D21H21/52
Filed: 1968-06-06
Abstract: 1,216,878. Coated paper. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 6 June, 1968 [7 June, 1967], No. 26957/68. Heading B2E. Paper with an unglazed surface locating is produced by immersing uncoated paper in a coating bath containing calcined alumina, comprising more than 80% by weight of α-alumina and having a Blaine specific surface area of 4,000-20,000 sq. cm./gm. and a grain size of less than 40 microns. The alumina may be mixed with kaolin, whilst the bath may contain in addition a natural or synthetic binder, e.g. protein, degraded or non-degraded amylaceous materials, butadiene resins, acrylic resins and vinyl resins. According to a preferred embodiment, the coating bath contains a pigment composition, when dry, from 1-99% by weight of calcined alumina having an α- alumina content of from 90-95% by weight and a Blaine specific surface area of from 4,000-20,000 sq. cm./gm., more than 90% by weight of the grains of calcined alumina having a size smaller than 10 microns.
Patent GB-362011-A (GB)
Title: New or improved paste or glue and process of making the same
IPC: C09J189/00
Filed: 1930-09-10
Abstract: An adhesive paste comprises 1 kg. of acid free casein, 30 grams of crystalline borax, 55 grams of ammonium chloride together with albumen, white sugar and sufficient water to form a homogeneous mass. The casein and borax are first kneaded cold with a part of the water, the remainder of the water is added at about 70 DEG  C., the ammonium chloride is then added with stirring and finally the albumen and sugar are mixed in.  The paste is said to be specially useful with paper bottles.
Patent GB-428211-A (GB)
Title: Improvements in and relating to the manufacture of compound fabrics
IPC: D06N3/00
Filed: 1933-10-02
Abstract: 428,211. Compound fabrics ; coating webs; coated fabrics. MORTON, J., Tuethur, Carlisle. Oct. 2, 1933, No. 27003. [Class 140] Pliable compound fabrics suitable for clothing, upholstery, &c., are made by applying adhesive by a roller at spaced areas on a sheet of textile material, and pressing the sheet by means of rollers into permanent attachment with another sheet of textile material. Adhesive may be applied by a roller at spaced areas on both sides of a sheet of textile material, and sheets of textile material attached to both sides by pressure between rollers, or adhesive may be applied at spaced areas on the inner faces of two sheets of textile material and these sheets attached to an intermediate sheet of textile material. Knitted, woven, or openwork fabrics of wool, silk, cotton, hemp, jute, coir, &c., may be used, and one layer may consist of textile threads arranged side by side. A flexible permanent cement is used such as rubber latex or a rubber mixture with vulcanizing and filling additions, or cellulose derivative or artificial resin solutions, and may be applied in lines, stripes, dots, patches, &c., which may form a design. The adhesive may be coloured, and may be applied thickly so as to embed the threads of the textile layer and form an embossed or relief effect. The adhesive-applying roller may be grooved, fluted, or engraved in relief or intaglio. The compound fabric may be varnished with a natural or synthetic resin or a cellulose derivative in solution. A fabric web A from a roll 20, Fig. 1, is printed at spaced areas with adhesive while passing around an impression cylinder 23 provided with a blanket 231 by a roller 24 supplied with adhesive from a trough 26 by a roller 25 and cleaned by scrapers 27, 28, and is united between pressure rollers 29, 30 to a fabric web B from roll 21, the compound fabric passing around a heating drum 31 before being wound up at 22. Alternatively, Fig. 14, the adhesive may be supplied from a trough 45 by a roll 44 and an endless band 42 travelling around pulleys 43 to spaced projections 41 on a roller 40, the fabric A from roll 20 receiving the adhesive from the projections 41. The Provisional Specification describes also fabrics comprising a sheet of openwork material such as net or side-by-side threads embedded in a layer of adhesive coated on a backing material. The resulting fabric may be varnished.
Patent GB-1514041-A (GB)
Title: Multiple flash bulb unit
IPC: G03B15/04
Filed: 1976-06-29
Abstract: 1514041 Multiple flash-bulb unit PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 June 1976 [2 July 1975] 27025/76 Heading G2X In a multiple flash-bulb unit the thermally operated visual indicators associated with each bulb which show whether or not the bulb has been flashed also act as thermally operable switches forming part of the electric circuit of the unit. In Fig. 2 an electric pulse is supplied to bulb 2 via input terminals 8 and 14. The bulb flashes, shrivelling a lead-tin alloy strip 11 which indicates the bulb 2 has flashed and also ceases to short circuit bulb 3, which is then flashed at the next impulse. In an alternative embodiment the strip 11 fuses to close, not open, a circuit.
Patent GB-292823-A (GB)
Title: Improvements in or relating to folding chairs and the like
IPC: A47C4/14
Filed: 1927-10-12
Abstract: 292,823. Harrison, A. J. Oct. 12, 1927. Folding seats; carrying-handles.-A folding cane chair has a seat 3 pivoted at 7 to the back 1, the lower part of which forms the front legs 5, and a leg frame 2 slidably connected to the seat so that when the chair is unfolded the point of connection 9 is located at the front of the seat and below the pivot 7. Pins 9 on the legs 2 may engage grooves 10 in frames 11 secured to the underside of the seat 3, and a carrying-handle 14 may be provided. Reference has been directed by the Comptroller to Specification 2898/80.
Patent GB-679847-A (GB)
Title: Improvements in optical projection apparatus incorporating a cathode-ray tube
IPC: H04N5/645
Filed: 1949-10-21
Abstract: 679,847. Cathode-ray tubes. PHILIPS ELECTRICAL, Ltd. Oct. 21, 1949 [Oct. 26, 1948], No. 27069/49. Class 39 (i). A television receiver comprises a cathode-ray tube which is adjustably supported with respect to a concave mirror by a frame which can be tilted by two devices which are arranged diametrically with reference to the tube axis and operate parallel thereto, and can be further tilted in a direction which is at right angles both to the tube axis and to the first-mentioned tilt axis by a third adjusting device. In the preferred form, the tube 1 is supported within a frame 31 which houses the deflecting and focusing coils and is carried by adjusting screws 5, 7 in the thickened end parts of wings 3<SP>11</SP>. The chassis' 11 houses the Schmidt system of concave mirror 15, plane mirror 17 and a correcting lens and carries the blocks 9 provided with a cup and groove respectively for the screws 5, 7. Tilting in a direction at right angles to the plane of the drawing is effected against the pull of two inclined springs 25 by a member 23 screwed into the frame 3<SP>1</SP> and carried by a support on the chassis 11.
Patent GB-605888-A (GB)
Title: Improvements in or relating to mixing machines
IPC: B01F7/16
Filed: 1945-10-16
Abstract: 605,888. Mixing-machines. DARLING. G. F. Oct. 16, 1945, No. 27076. Addition to 602,353. [Class 86] The mixing-machine described and claimed in the parent Specification is modified for mounting the driving motor 1 on a tube 6 slidable over a column 7, in which are co-operative electric contacts 12, 13, respectively, which make contact when the tube 6 is depressed against the action of a spring 10 and complete the circuit to drive the motor. The tube 6 may be locked in a selected position on the column 7 by a clamping nut 20 which is threaded on a pin 18 slidable in a slot 17. In an alternative construction the contacts 12 are carried by a plate secured to a vertical rod mounted in the head of the tube 6, and the latter is depressed against the tension of a spring which is attached at one end to the plate and at the opposite end is secured in a housing at the upper end of the column 7.
Patent GB-918527-A (GB)
Title: Improvements in the control of lighting for variable effect
IPC: G05B19/14
Filed: 1958-08-22
Abstract: 918,527. Programme control of stage &c. lighting. STRAND ELECTRIC & ENGINEERING CO. Ltd., BENTHAM, F. P., and LEGGETT, L. W. Aug. 21, 1959 [Aug. 22, 1958], No. 27106/58. Class 38 (4). An apparatus for reproducing a sequence of lighting scenes for, say, a theatre stage or television studio giving overriding manual control comprises a control panel on which the lighting intensities are set or adjusted, an intermediate store, and a memory unit such as a punched card system for setting at a later time the lighting intensities. The dimmers, which may be of any type are controlled by common sets of illuminable pushes 12a-12e giving a variation of lighting intensity, which are selectively connected by the operation of one push 24 over a cable 45 to an intermediate store unit 39, one to each dimmer, which also controls over a cable 55 the dimmer selectively connected to one of contacts 49c-53c when a move push 26 is operated. At the same time a supply is transmitted back to an appropriate lamp 16 through a cable 56. On energization of a card punch push (not shown) a signal is transmitted to the card punch over a cable 57. When the card is read back an appropriate signal is fed into the unit 39 over a cable 63 which has common connections with the lamp 45. After the lighting has been set by a card, it may be manually adjusted by means of the buttons 12a-12e. To ascertain the state of any dimmer, pushes 14 and 24 are operated which connect a meter 15 to the appropriate dimmer, thus directly indicating the voltage output. Where mechanical dimmers having mechanical inertia are used only one card reader is necessary, but where inertia less dimmers such as those controlled by discharge lamps or magnetic amplifiers are used, a second reader with " fade-in " and " fade-out " facilities may be necessary.
Patent GB-283306-A (GB)
Title: Improvements in and relating to lighting systems and apparatus for motor and other road vehicles
IPC: B60Q1/18
Filed: 1926-10-29
Abstract: 283,306. Davies, E. W. Oct. 29, 1926. Lighting, systems of. -Both the head lamps and the side lamps are adapted to project a beam of light forwardly and also simultaneously or otherwise to project a beam of light towards the side at any desired angle to the forward direction. Each head lamp 8 and side lamp 9 may have two reflectors and two electric bulbs and lenses as shown, or the lamps may be pivoted on vertical axes or each provided with a pivoted reflecting device which in one position sends the beam ahead and in the other position projects the sidewardly directed beam. The lamps or the reflecting devices may be interconnected to move in a parallel or other manner. The lamps may be enclosed in a single casing and combined with a coloured signalling lamp, or the lamps for the sidewardly directed beams may be attached to the casings of the existing lamps.
Patent GB-138579-A (GB)
Title: Improved means for cutting manufactured tobacco and for similar purposes
IPC: A24F47/00
Filed: 1919-11-04
Abstract: 138,579. Howe, N. Nov. 4, 1919. Cutting and slicing vegetables &c.-Tobacco in the form of plug, twist, or the like is cut into thin shavings by means of an obliquelyarranged knife a fixed within a sleeve b into which the tobacco is inserted, being pressed forward and rotated by hand. For cutting plug tobacco a rectangular member f attached to a cap h which rotates relatively to the sleeve b is employed. The knife a may be curved in two directions, and is formed with shoulders k and sido projections m, and is sprung into a slot in the sleeve b.