baber/WOPTO huggingface dataset:
Patent GB-1382147-A (GB)
Title: Method for producing l-tryptophan
IPC: C12P13/22
Filed: 1972-03-09
Abstract: 1382147 L-Tryptophan TAKEDA YAKUHIN KOGYO KK 9 March 1972 [9 March 1971] 11023/72 Heading C2C A method of producing L-tryptophan comprises cultivating a microorganism of the genus Bacillus being resistant to anthranilic acid and selected from those requiring anthranilic acid for growth and those requiring a precursor of anthranilic acid for growth, e.g. shickimic acid, the cultivation being conducted in a medium containing a growth-limiting amount of anthranilic acid, indole, and/or L-tryptophan, then adding to the culture broth an amount of anthranilic acid or indole in excess of that required for bacterial growth to cause the microorganism to synthesize L-tryptophan, and recovering L- tryptophan therefrom. A mono- or di-carboxylic, acid or hydroxycarboxylic acid or a salt thereof is preferably present.
Patent GB-200907-A (GB)
Title: Novel or improved clip for securing tubular, cylindrical and other like bodies in position
IPC: B62D1/16
Filed: 1922-04-20
Abstract: 200,907. Austin, Sir H. April 20, 1922. Supporting pipes and tubes.-A clip for securing rods &c. in position, more particularly for securing the steering- column of a motor to the instrument board, comprise a two-part base. portion a, a<1> screwed to the instrument board and having pivoted between lugs b, members c, which nearly surround the steering column and are drawn together by a bolt f and nut f<1>. Each member c, Fig. 6, is formed from a strip of metal bent at its middle to form a cylindrical portion c<1> and extending from such portion as a double thickness to its pivot axis with the base.
Patent GB-458074-A (GB)
Title: Improvements in or relating to capacity-controlled thermionic valve circuits for operating relays
IPC: G08B13/26
Filed: 1935-04-10
Abstract: 458,074. Valve relaying circuits. ALEXANDRA, A. C., 24, Holborn, and LOVIBOND, R. A., 71, Holder's Hill Drive, Hendon, both in London. April 10, 1935, No. 11107. [Class 40 (v)] In an alarm or similar system in which a relay is operated on the approach of a person by variation of a capacity responsive element 1, the latter element is directly coupled to the grid of a valve oscillator 4 so that increase in capacity decreases the anode current of the oscillator. This decrease is caused to reduce the negative control grid bias on a succeeding direct current amplifier 16 by reducing the voltage drop in resistance 22, the consequent increase in anode current of this valve actuating an iron-cored low-resistance relay 18. The element 1 is connected to the grid of the oscillator 4 over a large inductance 2 which is coupled to an inductance 10 connected to the anode. The oscillation frequency and therefore the sensitivity of the system may be varied by the variable condenser 8 and for fine adjustments by condenser 6 shunted across the grid-leak 7. In a modification, the resistance 22 is connected to the cathode of valve 16, the grid of which is then connected to a tapping on this resistance, Fig. 2 (not shown). The system is suitable for use on A.C. or D.C. mains, the smoothing condensers 24, 25 being of 6 mfd. capacity.
Patent GB-1468123-A (GB)
Title: Furniture frame
IPC: A47C5/12
Filed: 1975-03-18
Abstract: 1468123 Furniture frames HERCULES Inc 18 March 1975 [28 March 1974] 11124/75 Heading A4H  A furniture frame for a sofa bed, recliner chair, rocking chair, comprises a pair of spaced parallel, load bearing mirror-image sub-frames 10, 20, each subframe being moulded in one piece from plastics material and formed of joined plate-portions, each sub-frame including at least one peripherally enclosed load-bearing receptacle such as 22a, 22b, 22c, the receptacle being connected to the remainder of the sub-frame by at least four plate portions such as 23a-f radiating outwardly from the receptacle, and at least one connecting member such as 12, 14, 16 having its ends received within receptacles of the respective sub-frames. Each subframe also includes areas 19 for the attachment of legs 18, castors etc., and upholstery tacking surfaces 28. The plastics may comprise polypropylene foam, polystyrene, polyethylene.
Patent GB-1091428-A (GB)
Title: Electric discharge recording apparatus
Inventor: YASUTOMI MOTOKAZO
IPC: H04N1/40
Filed: 1966-03-14
Abstract: 1,091,428. Facsimile recording apparatus. TOKYO KOKU KEIKI KABUSHIKI KAISHA. March 14, 1966, No. 11145/66. Heading H4F. Apparatus for preparing stencil sheets comprises a photo-electric converter for converting light from an illuminated master sheet into electric signals, a direct current amplifying circuit utilizing no alternating or pulsating current for amplifying the electric signals to obtain a voltage of suitable amplitude and power level to effect discharge recording, and a discharge electrode directly connected to the amplifier. The discharge occurs intermittently at a discharge interval determined by the nature, the thickness, the surface resistivity, the breakdown strength and the dielectric constant of the recording medium and the magnitude of the impressed voltage.
Patent GB-396874-A (GB)
Title: Electricians' screw-driver
IPC: B25B23/16
Filed: 1932-04-19
Abstract: 396,874. Screwdrivers. CHEFFINS, G. L., 221, Townshend Road, Subiaco, Western Australia. April 19, 1932, No. 11158. [Class 61 (iii).] A screwdriver is provided at the handle end with a reel or reels 12, 13, 14 for electric fuse wire which is normally enclosed by a sleeve or hollow handle 16 secured by a nut 17 engaging a threaded part 11 of the shank.
Patent GB-940375-A (GB)
Title: Improvements in or relating to seats convertible into beds
Inventor: HALL WILLIAM JOSEPH
IPC: A47C17/175
Filed: 1959-04-02
Abstract: 940,375. Bed settees. W. STEEL & CO. Ltd. Feb. 12, 1960 [April 2, 1959], No. 11305/59. Heading A4J. In a bed settee in which rearward tilting of the back frame 13 into a horizontal plane causes a seat frame 6 mounted on links 8, 9 to move into this plane, the back frame 13 is guided on rollers 19 which reach the ends 17 of guides 16 when stops 11 and 12 abut links 8. Tension springs 21 assist the conversion but, in the position shown, are stated to have a toggle action about guides 24 which tends to hold the seat frame down.
Patent GB-397598-A (GB)
Title: Improved construction of egg stand
IPC: A47G19/28
Filed: 1932-04-20
Abstract: 397,598. Egg-cooking appliances. MACDONALD, W. F., 13, Brunswick Gardens, Kensington, London. April 20, 1932, No. 11323. [Class 28 (i).] A collapsable wire stand for carrying eggs while being boiled comprises a main member of bent wire, the legs 1 opening outwards and the upper part forming a handle 1b, and two members 10, 12 comprising rings of circular segments connected by loops 11, 13 and adapted to engage loops on the main member and two or more other members 6, the whole being rigidly held together by a sliding link 14. In assembling, the link 14 is slid up the legs 1 to allow the loops 3 to engage the ring 10. The ring 12 is then passed over the feet 5 and engages the loops 4. The additional members 6 are then positioned with their hooked ends 6a engaging the link 14. The eggs are placed in the ring 10, resting on the ring 12. A sliding ring may be employed instead of the link 14.
Patent GB-623309-A (GB)
Title: Improvements in the production of polyesters
IPC: C08G63/199
Filed: 1947-04-28
Abstract: Linear polyesters are produced from trans-quinitol or a formate or acetate thereof and a dicarboxylic acid or an ester-forming derivative thereof such as the methyl or ethyl ester.  Suitable acids are succinic, adipic, glutaric, oxalic, sebacic or mixtures thereof, or acids such as terephthalic, diphenyl-4 : 4-dicarboxylic, and 4 : 41-dicarboxydibenzyl, may be used with additions of w-hydroxycaproic acid to reduce the melting point of the polymer.  A small quantity of a volatile glycol helps the reaction which may take place at 100-350 DEG  C.  Catalysts, e.g. p-toluene sulphuric acid, phosphoric acid, alkali metals or magnesium or alkali metal alcoholates may be added. The pressure may be reduced especially at the end of the reaction. An oxygen-free atmosphere may be maintained, e.g. by passing hydrogen or nitrogen through the mixture.  The reaction is preferably effected in liquid phase, if desired, with addition of m-cresol or phenol as solvent.  Preferably a slight molecular excess of trans-quinitol is maintained because of its volatility.  The products are suitable for fibres films, lacquers, or moulding masses.  Examples describe (1) a polymer from trans-quinitol and succinic acid; (2) a polymer from trans-quinitol, diethyl succinate, and ethylene glycol; (3) a polymer from trans-quinitol, ethylene glycol and succinic acid. Specification 620,494 is referred to in the Provisional Specification.
Patent GB-274777-A (GB)
Title: Adjoint-piece for telescope-sights
IPC: G02B27/32
Filed: 1927-04-29
Abstract: 274,777. Gerdes, A. F. April 29, 1927. No Patent granted (Sealing fee not paid). Telescopes; eye-pieces.-For the purpose of converting a telescopic sight into a night sighting device an electric lamp 2b mounted in the focal plane of a short focus lens 2a is fitted in a sleeve 2 adapted to slide on to the eye-piece of the sight 1. The graticule 1<c> is thus illumi. nated and projected on to the target.
Patent GB-527568-A (GB)
Title: Improvements in and relating to electric thermal switches
IPC: H01H37/68
Filed: 1939-04-14
Abstract: 527,568. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. April 14, 1939, No. 11439. Convention date, April 14, 1938. [Class 38 (v)] A bimetallic strip 5 bears a contact on its free end, cooperating with a contact on a radial arm 7 borne by an electrode passing through the evacuated casing in such a way that it can be rotated to adjust the initial pressure between the contacts to vary the temperature at which the contacts separate.
Patent GB-150650-A (GB)
Title: Needle thread take-ups for sewing machines
IPC: D05B51/00
Filed: 1919-12-18
Abstract: 150,650. Fairweather, W., (Singer Manufacturing Co.). Dec. 18, 1919. Sewing - machines; governing needle thread. - A lever take-up, arranged to provide a large amount cf slack thread for the passage of the needle thread loop over a spool-case containing a commercial reel of thread, is provided with means which absorbs the slack thread during the major part of the downward stroke of the take-up arm and yields it up near the completion of that stroke. A a take-up arm 55 is bifurcated and the needle-thread in passing from the eye 57 in one bifurcation to that in the other is bent round a stationary cam-wire 60 which is curved at 60<1> so as temporarily to absorb the thread which would otherwise be given out by the take-up curing the major part of its stroke. The take-up arm 55 is pivoted to an operating crank-pin 7 and an anchor link 58. The device is described in connexion with a, ring-hook 24 making two revolutions for each stitch as described in Specification 152,895.
Patent GB-1427677-A (GB)
Title: Delayed release pharmaceutical preparation and a method of producing the same
IPC: A61K9/22
Filed: 1974-03-14
Abstract: 1427677 Delayed release medicaments EDELFETTWERKE WERNER SCHLUTER and GLYCO IBERICA SA 14 March 1974 [6 Dec 1973] 11487/74 Heading A5B Delayed release preparations comprise particles of a medicament coated with a fatty acid triglyceride, and a water-soluble calcium salt. The latter may be incorporated in the coated medicament particles or may also be present, e.g. in a capsule or liquid suspension, in the form of particles likewise coated with the triglyceride. The particles may be produced by suspending the particulate material in a molten triglyceride, subdividing the melt and allowing the liquid particles thus formed to solidify in known manner. Alternatively, the melt may be cast into a thin sheet and mechanically subdivided. The particles obtained may be used as indicated above or as constituents of compressed tablets.
Patent GB-759678-A (GB)
Title: Improvements in guided missiles
Inventor: WALLIS BARNES NEVILLE
IPC: F02C3/08
Filed: 1949-04-29
Abstract: 759,678. Gas turbine plant. VICKERSARMSTRONGS (AIRCRAFT), Ltd. April 28, 1950 [April 29, 1949], No. 11533/49. Class 110(3) [Also in Group XXI] In a guided missile, as described briefly in Specification 759,677 [Group XXI], compartments formed by bulkheads contain respectively, electronic directional-control apparatus 23, war-head B and detonator 24, a collapsible liquid-fuel tank 25, and a turbo-jet unit. Compressed air from the fore-part of the spine 14 is admitted through pipe 26 to compress the tank 25 and ensure constant fuel feed through an intermediate part of the spine to the turbo-jet unit. This latter unit comprises a rotor 27, 28, on a tubular shaft 29, which is supported axially by the spine 14. Air inlets for the unit are provided at 34. Specification 759,679 [Group XXI] also is referred to.
Patent GB-428035-A (GB)
Title: Improvements in rollers for gilling machines and drawing machines for the treatment of fibrous material
IPC: D01H5/74
Filed: 1933-07-29
Abstract: 428,035. Fastenings. PLATT BROS. & CO., Ltd., Hartford Works, Oldham, and HUGHES, J., 903, Oldham Road, Rochdale. July 29, 1933, No. 11546/35. Divided out of 427,882, [Group IX]. [Class 44] [See also Group IX] A spring clip 10, serving to grip a reduced part 13 of the arbor 1, is provided in a top roller for a gillbox or drawing-frame to secure the loose boss or roller body on the arbor. The clip comprises a handle 10, bowed arbor-gripping parts and outwardly-diverging ends 11. Specification 427,882 is referred to.
Patent GB-359368-A (GB)
Title: Improvements in or relating to reaction towers for the manufacture of sulphuric acid
IPC: C01B17/86
Filed: 1931-04-20
Abstract: <PICT:0359368/III/1> <PICT:0359368/III/2> Round sulphuric acid towers consisting of tiles covered on the outside with a lead mantle are reinforced by armatures consisting of horizontally extending metal wires or belts of metal netting or gauze, which by means of rigging screws or bolts may be drawn together so as to press against the lead mantle.  The armature may comprise a belt of metal wires 1, Fig. 1, formed into a gauze by vertical wires 2 which may be arranged as shown in Fig. 2, so that there are no protuberances on the side presented to the lead.  A number of such belts are used at suitable distances.
Patent GB-228757-A (GB)
Title: Improvements in alloys or compositions for treating molten metals
IPC: C21C7/06
Filed: 1924-05-12
Abstract: 228,757. Marks, E. C. R., (Electro Metallurgical Co.). May 12, 1924. Dry processes of refining copper and other metals; alloys.-An alloy or aggregate for treating molten steel, bronze, copper, and other metals or alloys comprises zirconium, silicon and an element capable of lowering the melting- point of zirconia-silica slag, which may be manganese, calcium, or boron. Iron may also be present. A zirconium-manganese-silicon alloy is preferably produced by carbon reduction in an electric furnace; or ferromanganese may be fused with a zirconium-silicon-iron alloy; or ferromanganese and a zirconium-silicon-iron alloy may be bonded with metallic or non-metallic binders such as lead, borates, boric acid, or fusible slags. Specification 197,573 is referred to.
Patent GB-566938-A (GB)
Title: Improvements in or relating to devices for use in sharpening safety-razor blades
IPC: B24D15/10
Filed: 1943-07-20
Abstract: 566,938. Sharpening razors. RAVENOR, M. A. July 20, 1943, No. 11801. [Class 60] A device for sharpening double-edged safetyrazor blades comprises two metal strips 1, 2, each of which has longitudinal edges 3 inset between the ends of the strip leaving shoulders 4 at the ends, the strip between the edges 3 being of width less than that of a blade 5. One end of each strip has a cut-out part 6, the metal on the sides of this part being bent over to form a pair of spring clips 7, and the other end of each strip is rolled to form a handle 9. Each strip also is pressed to form an inner channel and outwardly projecting longitudinal rib 8, one strip also having two portions of the rib pressed back into the channel to form projections 11 to engage the holes 12 in the blade 5. In use, the strips 1, 2 are interengaged, as in Fig. 2, with an end 4 of one strip in the clips 7 of the other strip, the blade lying between the strips with its edges projecting beyond the edges,3 ; the device is then moved over a honing or stropping surface with the rib 8 and a longitudinal edge 3 of a strip pressed in contact therewith and the blade being flexed, so that the rib and the edge of the strip determine the stropping &c. angle. One strip only may be formed with a handle ; the strips may be of concave cross-section so as to grip the blade only along their edges 3, so that the blade as a whole may flex when applied to the sharpening surface.
Patent GB-1002927-A (GB)
Title: A method for the manufacture of chalices
IPC: C03B9/33
Filed: 1963-03-26
Abstract: In a method of manufacturing chalices a quantity of glass 1 is fed into a mould 2 provided with a ring to give the glass a rim, said ring being removed and the exposed end of the glass attached to a blow pipe 4, having an internal pressing plunger 10, by grippers 5, the other end of the glass mass 1 then being attached to another blow pipe 7, having internal pressing plunger 11, by grippers 8, the two blowing pipes 4, 7 then being synchronously rotated whilst the plungers 10, 11 make cavities in the glass which on removal of the plungers are blown out in a first blowing operation; the blow pipes and the partially blown out glass are then moved into a horizontal plane and the central portion of the glass mass is formed into a stem 14 by mechanical means 15, e.g. tongs, <PICT:1002927/C1/1> <PICT:1002927/C1/2> <PICT:1002927/C1/3> whilst the two partially inflated end portions are moved outwardly, the viscosity of the glass being controlled by a ring of air jets and burners 17 to 20; after this stretching the glass is enclosed in a final blowing mould wherein one end portion is blown out to form the main receptacle of the chalice and the other end portion a foot.  The moil of the foot is melted off and the article trimmed up.  In an alternative embodiment both end portions may be blown out to form receptacles, the stem being formed of double length, and after cutting, feet are added separately to the two articles so formed.  Several examples of different modifications are shown.
Patent GB-695189-A (GB)
Title: Improvements in or relating to tool holders for lathes and other machine tools
IPC: B23B27/16
Filed: 1952-05-12
Abstract: 695,189. Tool-holders. WESSON MULTICUT CO. May 12, 1952 [May 26, 1951], No. 11911/52. Class 83 (iii). A tool-holder for lathes &c. of the type wherein a bit is held in a tool body by a tensioned band, comprises a body having recesses on the outer surface thereof and means for retaining two or more bits in said recesses, a band anchored at each end having means urging it towards the body between the said bits. The tool bits 10, 12, Fig. 1, are of the solid carbide type and are nested in recesses in a body B. A band 14 passes around the inserts, holes in the ends of the band engaging notches in the ends of a cross-pin 16. The hole for the latter is of oval cross-section, Fig. 4, so that a wedge-ended screw 42, when tightened, moves the pin 16 in a direction to draw the band tight against the tool bits. A height-adjusting screw 32 is provided for each tool bit. To ensure tension of the band around the exposed faces of the tool bits a conical anchor post 38, Figs. 1 and 2, is provided, the slanting edge of which is parallel to the adjacent wall of the body. In a modified holder, Fig. 6, one tool bit 62 of round and one 60 of square section are held by a band 64 the ends of which are anchored by screws 66. The band is tensioned by a shaped block 76, Fig. 8, secured to the middle of the band by a screw 78 which also connects it-to a plunger 70 slidable in a bore in the body H. The plunger is forced outwardly by a compression spring but has a conical depression 84 engaged by the tapered end of an adjusting screw which, when screwed down draws the plunger further into its bore and thus tightens the band 64. Adjusting screws are provided to give a fine heightadjustment to the tools and the correct height is indicated by bevelled-off portions 100, Fig. 6, of a plate 96 secured to the top of the holder. Specification 685,901 is referred to.
Patent GB-1064976-A (GB)
Title: Casting resins for the production of self-extinguishing plastics
IPC: C08F291/00
Filed: 1964-03-20
Abstract: Casting resins for the production of self-extinguishing plastics comprise from 5 to 25% by weight of a halogen-containing polymer (A) or copolymer (B), from 10 to 30% by weight of a known flame-inhibiting substance (C) containing halogen and/or phosphorus, from 3 to 25% by weight of a polyethylenically unsaturated cross-linking agent (D) and at least one ethylenically unsaturated monomeric polymerizable phosphorus- and halogen-free liquid organic compound (E) or a mixture of the monomer (E) with a polymer (F) thereof, the compound (E) or the compound (E) together with the polymer (F), when present, being in the casting resin in an amount of at least 30% by weight and the polymeric component (A) or (B) being soluble in the monomer (E).  The polymeric component is preferably a poly-a -chloroacrylic acid ester or a copolymer of vinyl or vinylidene chloride with, for example, vinyl acetate.  Component (C) preferably contains both halogen and phosphorus, e.g. tri-(b -chloroethyl)phosphate or the substance known as "Phosgard" (Registered Trade Mark); it may also be a compound, such as chloroacrylic acid, which can be copolymerized with the monomer (E). Component (D) may be a diacrylate or dimethacrylate ester and is preferably a dimethacrylate ester of a polyglycol, e.g. tri-, tetra- or poly-ethylene glycol; the dimethacrylate esters of ethylene and butylene glycol are also disclosed.  The monomer (E) is preferably methyl methacrylate or styrene or a mixture thereof; the mixtures with corresponding polymer (F) are generally obtained by partial polymerization of monomer (E).  Curing of the casting resins can be effected using a peroxide initiator, e.g. lauroyl peroxide, if desired together with a hydroperoxide such as methyl ethyl ketone peroxide. Accelerators may also be used, e.g. di-(p-toluenesulphonylmethyl) - amine, lauryl mercaptan, b  - phenylethyl - dibutylamine hydrochloride, copper naphthenate and copper octoate. Redox systems such as diacyl peroxides/tertiary amines may also be used for the curing. The casting resins may be reinforced with glass fibres to form sheets or shaped elements.