baber/WOPTO huggingface dataset:
Patent GB-768641-A (GB)
Title: Improvements in and relating to articles of wearing apparel
IPC: A41B3/06
Filed: 1951-10-15
Abstract: 768,641. Corsets ; shirt collars ; stiffeners. TRUBENISED (GREAT BRITAIN), Ltd. Oct. 15, 1951 [Oct. 14, 1950; Dec. 5, 1950; Sept. 24, 1951], No. 23966/51. Class 141. [Also in Group IX] A garment is provided with means for opposing undesired curvature or inducing curvature comprising a flexible compressionresistant element incorporated in the garment and an elastic element secured to the appropriate surface of the compression - resistant element in a permanently attached condition. In a collar, Fig. 2, the curvature opposing means comprise strips 21, 21a, positioned between the plies at the edges adjacent the points. The collar may be of the fused type or may have a stiffening lining adjacent each point, the inner edge of the lining being tapered e.g. by reducing the number of flexible yarns, size of yarns etc. In a stiff collar, the collar plies may constitute the compression resistant element whereas, in a soft collar, a separate stiffening strip is employed to which the elastic element e.g. a rubber strip is attached. In an alternative construction, a single strip may extend from each collar point on a diagonal line. In a girdle, Fig. 9, a curvature opposing strip 12' is applied to the upper edge of the front panel 13. The compressionresistant element may comprise three fabric plies fused together and the elastic element is stretched vertically. Instead of using one strip, a number may be employed or the compression resistant element may be continuous whilst the elastic element is in a series of narrow strips. In further forms of curvature-inducing means, a rubber tape may be stitched to a cotton tape stiffened with resin or rubber yarns may be interwoven with the cotton tape so that they are on one face of the strip, which is subsequently stiffened. Alternatively, the stiffness may be provided by nylon monofilaments in the warp of a nylon tape, adhesive or heat being provided to fix the weft yarns. The strip may be tapered by providing ordinary nylon warp yarns on both sides of the nylon monofilaments. The tension of the elastic element e.g. rubber strip applied to a stiffened cotton tape may be varied along its length by means of two eccentrically mounted feeding rolls of different diameter or by varying the width or thickness of the rubber strip or by varying the amount of resin applied to the cotton tape. In a further construction, the curvature inducing means may comprise two strips of rubber, one of which is stretched when applied to the other which is thicker or harder. Specification 768,642 is referred to.
Patent GB-1313812-A (GB)
Title: Flavouring compositions containing thiolkanol-s-oxides and processes for preparing them
Inventor: BRODNITZ M H
IPC: A23L27/20
Filed: 1971-04-19
Abstract: 1313812 Flavourings INTERNATIONAL FLAVORS & FRAGRANCES Inc 19 April 1971 [24 Feb 1970 7 Jan 1971] 24038/71 Heading A2B [Also in Division C2] Thioalkanol-S-oxides of formula: where R is linear C 2-5  alkyl and rearrangement products thereof obtained on standing above 10C are used in flavouring foodstuffs.
Patent GB-249069-A (GB)
Title: Means for measuring the altitude of aircraft
IPC: G01S11/02
Filed: 1925-09-26
Abstract: 249,069. Junkers, H. March 12, 1925, [Convention date]. Locating conductors; frequency and capacities. measuring.-The altitude of an aircraft is determined by measuring the electrostatic capacity between the metal aircraft and a second conductor 2<a> formed by a separate small insulated surface mounted on the undercarriage. The conductors 1<a>, 2<a> are connected in a circuit containing an oscillation generator 4 and a coupling-coil 6 coupled to a coil 10 which forms with a variable condenser 11, 13 a second oscillation circuit. The movable member 13 of the variable condenser is mounted on a mechanically driven shaft 14, which also carries a disc 15 with a radial slit 16 rotating over a stationary scale 17. In parallel with the condenser 11, 13 is a glow discharge tube 18 arranged to illuminate one half of the disc 15, the other half being masked by a screen 19. The tube 18 lights up at the particular point in the revolution of the shaft 14 that corresponds to the position of the movable plates 13 when the coupled circuit is tuned to resonance with the primary circuit, thereby illuminating the slit su at a particular point on the scale. This reading is a function of the capacity between the conductors 1<a>, 2<a>, and therefore of their distance from the ground. In a modification shown in Fig. 3, the tube 18a itself serves as the luminous indicator and is mounted on a rotary disc 20 carrying the movable coatings 13<a> of the condenser, which rotate between the fixed coatings 11<a>. In place of the inductance coupling between the oscillation circuits, any other kind of coupling such as capacitative or direct may be employed. Amplifiers and reaction couplings may be employed for intensifying the effect. The excitation of the oscillation circuit may be effected from the wireless signalling apparatus on the aeroplane. The variable condenser may be replaced by a variometer. The frequency may also be determined by known superimposition acoustic methods, the audible note due to surging undergoing modification as the distance between the aircraft and the ground changes. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a modification in which both conductors 1<a>, 2a are insulated bodies mounted horizontally on the wings at a considerable horizontal distance apart. This subject-matter does not appear in the Specification as accepted.
Patent GB-946730-A (GB)
Title: Improvements in or relating to electrical capacitors
IPC: H01G/
Filed: 1962-06-22
Abstract: 946,730. Capacitors. SIEMENS & HALSKE A.G. June 22, 1962 [June 23, 1961], No. 24079/62. Heading H1M. An electrical capacitor comprises a pair of electrodes separated by a single dielectric layer; one electrode comprising two electrically interconnected metal coatings of which one is deposited on a first varnish layer situated in the field free space between the two coatings and the dielectric layer comprises a second varnish layer overlying the metal coating which is deposited on the first varnish layer. Fig. 1 shows a self-healing capacitor wherein an e.g. cellulose acetate varnish layer 1 formed by painting on a carrier (not shown) is coated with an e.g. aluminium metallic layer 3 by vaporization, which is coated with an e.g. polystyrene varnish layer 5. Two such triple foils are superimposed in assembly 11 with similar varnish layers 1, 2 in contact and lying in the field free region between the metallic layers 3, 4 which are interconnected to a single electrode, e.g. by spraying a metallic zinc end contact and the opposed electrode is formed by metallic layers 9, 10 on varnish layers 7, 8, which are superimposed to lie in the field free region of the metallic layers, interconnected as before. The pairs of metallic layers may be staggered. In a modification (Fig. 2, not shown) each electrode comprises a triple film of e.g. polystyrene, aluminium, cellulose acetate superimposed on a double foil of e.g. aluminium and polystyrene; the aluminium layers being interconnected as before. In a further modification (Fig. 3, not shown) the first electrode comprises two superimposed triple films of polystyrene, aluminium, cellulose acetate with the aluminium layers interconnected, and the second electrode comprises a simple metallic foil superimposed thereon.
Patent GB-1212798-A (GB)
Title: Sodium ampicillin
IPC: C07D499/16
Filed: 1968-05-21
Abstract: 1,212,798. α - aminobenzyl penicillin. AMERICAN HOME PRODUCTS CORP. 21 May, 1968 [23 Jan., 1968], No. 24102/68. Heading C2A. The sodium salt of α - aminobenzyl - penicillin is prepared by admixing anhydrous ampicillin with an excess of diethylamine in methylene chloride to form a solution of the diethylamine salt of ampicillin, admixing with said solution an approximately molar equivalent of sodium 2 - ethylhexanoate, admixing the resulting solution with substantially anhydrous acetonitrile and, after crystallization has occurred, separating the crystals which have formed. The temperature is 0‹ to 15‹ C. and the acetonitrile is added slowly with stirring e.g. at 0‹ + 1‹ C. Anhydrous ampicillin is prepared according to Specification 1,003,863. Specifications 873,049, 980,240, 1,060,034, 1,060,445 and 1,128,235 are referred to.
Patent GB-1526544-A (GB)
Title: Container
IPC: B65D5/28
Filed: 1976-06-11
Abstract: 1526544 Containers SPRINTER PACK AB 11 June 1976 [17 June 1975] 24334/76 Heading B8P A container, e.g. for packing margarine comprises a tray 2 formed from a blank, Fig. 4, and lined by deep-drawn plastics film 3, the blank defining gaps (4), Fig. 3 (not shown), at which the film 3 is formed with pressed-out portions 9 to facilitate nesting. Wall portions 12, 13 of the blank have end portions bent to engage and be adhered to flaps 14, which flaps 14 are of lesser height than the portions 12, 13 in order to define the gaps (4). The erected tray 2 is placed in a mould into which the plastics film is deep drawn under pressure and/or vacuum. A mould flange 7 is co-operable with a lid (not shown).
Patent GB-745097-A (GB)
Title: Process for the resolution of dl-acyltryptophanes
IPC: C07D209/20
Filed: 1953-09-03
Abstract: The invention comprises (1) salts of an N-acyl-L-tryptophane of formula <FORM:0745097/IV(a)/1> in which R is hydrogen or a monovalent hydrocarbon radical, e.g. an alkyl, aryl or aralkyl radical, with L-(+)-threo-1-para-methylthiophenyl-or L-(+)-threo-1-para-nitrophenyl - 2 - aminopropane - 1,3 - diol (2) N-formyl-L-, N-propionyl-L- and N-propionyl-D-tryptophane; (3) a process for resolving N - ocyl - DL - tryptophanes of the above formula, which comprises treating the racemic acyltryptophanes with L-(+)-threo-1-para-nitrophenyl-or L-(+)-threo-1-para-methylthiophenyl - 2 - aminopropane - 1,3 - diol in an aqueous solvent to form a salt, separating the resulting salts of the two enantiomorphs by means of their different solubilities and liberating the D- or L-acyltryptophanes from their respective salts by acidification. The solvent is preferably water or an aqueous aliphatic alcohol containing 1 to 6 carbon atoms.  The L-enantiomorph salt precipitates in said solvent and is removed by filtration, while the free D-enantiomorph is obtained by acidification of the mother liquor, e.g. with hydrochloric acid.  The D- or L-acyltryptophanes may be subsequently hydrolysed to D- or L-tryptophane respectively, and both D-tryptophane and D-acyltryptophane may be racemized to DL-acyltryptophane for further treatment.  The examples describe the preparation of N-formyl- and N-acetyl-L-tryptophane together with the L-(+)-threo-1-para-nitrophenyl- and L - (+) - threo - 1 - para - methylthiophenyl-2-aminopropane-1,3-diol salts thereof; N-propionyl-L-tryptophane and the L-(+)-threo-1 - para - methylthiophenyl - 2 - aminopropane-1,3-diol salt thereof; N-formyl-, N-acetyl- and N-propionyl-D-tryptophane, D- and L-tryptophane.
Patent GB-1504866-A (GB)
Title: Methanation
IPC: B01J23/74
Filed: 1974-06-03
Abstract: 1504866 Methane production IMPERIAL CHEMICAL INDUSTRIES Ltd 21 May 1975 [3 June 1974 4 Sept 1974] 24506/74 and 38633/74 Heading C5E A process for the production of a methanecontaining gas comprises reacting, at an outlet temperature of at least 500‹ C., a gas comprising carbon oxides and hydrogen over a catalyst comprising the product of thermal decomposition and reduction of a compound containing an oxide of divalent nickel and/or cobalt and/or iron, a difficultly reducible (defined) oxide of at least one trivalent metal, hydroxyl ions, divalent anions, and water. Suitable catalysts are disclosed in Specification 1,336,866. The starting gas may be made by partial oxidation of a carbonaceous feedstock such as coal, coke, heavy oil, vaporisable oils, and normally gaseous hydrocarbons having a higher molecular weight than methane, and may be subjected to a CO shift reaction before the methanation stage. The first methanation stage, which is preferably at an outlet temperature of 600-900‹ C., may be followed by one or more conventional methanation stages at outlet temperatures of 250-400‹ C., to produce a substitute natural gas. Alternatively, the first methanation stage may be followed by a lower temperature methanation stage at an outlet temperature of 500-850‹ C. over a catalyst as specified above. Various catalyst production and gas purification processes are described.
Patent GB-1128100-A (GB)
Title: Improvements in or relating to annular sealing means
Inventor: WILLMER PETER LAWRENCE
IPC: F16J9/06
Filed: 1966-06-02
Abstract: 1,128,100. Piston rings. HEPWORTH & GRANDAGE Ltd. 25 May, 1967 [2 June, 1966], No. 24596/66. Heading F2T. In a spacer-expander for a piston ring 8 comprising an axially split spring ring 2 formed by circumferentially spaced radially-opening U-shaped elements 5 interconnected at their base portions 5a, by integral ties 4, the ties are axially staggered. Slots 3c in the portions 5a and also the slots 3d formed between opposed edges of adjacent portions 5a extend obliquely to the axis of the ring 2. Steps 6 are formed on the limbs 5b of the ring 2 which is formed from a spring steel strip blank 1. In use, Fig. 3, split piston rings 8 supported on the limbs 5d are housed with the ring 2 in a piston ring groove 10, and urged radially against the cylinder wall 12 by engagement with the steps 6. The outer peripheral faces 9 of the rings 8 may be coated with molybdenum or chromium. In a modification, Figs. 6 and 7 (not shown) the slots (13) between adjacent elements (5) and the slots (14) in the base portions ( 5a) are parallel to the axis of the spacer-expander ring.
Patent GB-383677-A (GB)
Title: Improvements in electric evaporators
Filed: 1931-09-02
Abstract: <PICT:0383677/III/1> An electric distillation apparatus comprises an evaporator vessel 6 in open communication with a storage vessel 8. Water in the former is boiled by passage of electric current therethrough, electrodes 13 being provided for this purpose.  The steam evolved passes to condenser 7 through a branched pipe 64, water entrained by the vapour being returned to the evaporator vessel. Cooling water for the condenser enters by pipe 77 and passes through the condenser to reservoir 8.  Distilled water passes out through pipe 75.  The rate of evaporation is controlled by tap 65.
Patent GB-1429284-A (GB)
Title: Process for the preparation of polyunsaturated hydrocarbons
IPC: A23L27/20
Filed: 1974-06-05
Abstract: 1429284 1- and 3-Hydroxy or bromo-undecadienes FIRMENICH SA 5 June 1974 [7 June 1973] 24977/74 Heading C2C [Also in Divisions A2 A5 and C5] 3-Hydroxy-undeca-1,5-cis-diene and undeca- 2-trans 5-cis-dien-1-ol are prepared by reacting 1- bromo hept-1-cis-ene with lithium or lithium and copper iodide and reacting the resulting organometallic derivative of the heptene with butadiene monoepoxide. The alcohols may be halogenated by treatment with PBr 3  to give 3- bromo-undeca-1,5-cis-diene and undeca-2-trans- 5-cis-dien-1-yl bromide. Penta-1,4-dien-3-ol may be prepared by reacting vinyl bromide and Mg in the presence of methyl iodide and iodine and reacting the resulting Grignard derivative with aerolein.
Patent GB-172103-A (GB)
Title: Improvements in and relating to man-power aeroplanes
IPC: B64C31/04
Filed: 1920-08-30
Abstract: 172,103. Evans, S. Aug. 30, 1920. Aeroplanes; planes, arrangement and construction of; propelling; land wheels. - An ordinary bicycle is provided with three planes H, I, J arched in front and sloping downwards to the rear, and made of a framework of cane and tension wires covered with linen fabric 1. Longitudinal hinges H2, Fig. 4, allow the outer portions to be folded downwards for storing on the withdrawal of pins M and support wires. Propellers G, G<1> having four blades each are driven through gearing D, C, A by a gear-wheel A fixed to the back wheel of the bicycle. Steering, balancing, and regulating altitude.-A rudder at the rear of the machine is controlled bv a lever positioned by a three-notched quadrant. Side-wind stability sections N, Fig. 5, at the middle of each side edge of the main wing, are pivoted on longitudinal axes N, and operated by a lever L, fastened to the handle-bar tube of the machine, through cords L1 and swivels L2 against the action of springs N3. Elevators W, Fig. 5, at the middle of the rear edge of each wing, can be turned about axes W1 by a lever K through cords K2, swivets K3, and two wires K4.
Patent GB-673872-A (GB)
Title: Improvements in coated paper
IPC: D21H19/22
Filed: 1949-09-29
Abstract: A copolymer of styrene and acrylonitrile in the proportions of from 65-80 per cent styrene and from 35 to 20 per cent by weight of acrylonitrile or a mixture of this copolymer with a copolymer of butadiene and acrylonitrile, the copolymers having a second order transition temperature between 40 DEG  and 125 DEG  C. are coated on to paper and hot calendered above the second order temperature.  A copolymer of 70 per cent styrene and 30 per cent acrylonitrile is made by polymerizing in aqueous media in the presence of potassium persulphate, sodium lauryl sulphate and the condensation product of formaldehyde and sodium naphthalene sulphonate.  A copolymer of butadiene-acrylonitrile is made by copolymerizing in the presence of sodium lauryl sulphate, benzoyl peroxide and dodecyl mercaptan at a temperature of 40 DEG  C. for 8 hours and 65 DEG  C. for 5 hours.
Patent GB-1437174-A (GB)
Title: Ion gauges
IPC: H01J41/06
Filed: 1972-05-26
Abstract: 1437174 lonization monometers MULLARD Ltd 20 July 1973 [26 May 1972] 25017/72 Heading H1D An ionization manometer comprises cathodes 1, 2, an ionization region 13 defined by perforated walls 4, 5 and an end wall 6 opaque to soft X-rays and having an ion exit aperture 7, an elongated ion collector 10 and a reflector electrode 31 biased to cause the ions to converge on the collector 10 and so formed that most X- rays formed in the ionisation region 13 are multiply reflected between the reflector electrode and a truncated conical member 35 attached thereto and therefore the radiation is attenuated before it can reach the collector electrode 10. The rear of the collector and its lead are further shielded by an insulating bead 36 and a shield 37. An extractor electrode 39 is provided between aperture 7 and the collector 10. Reference has been directed by the Comptroller to Specification 1,173,354.
Patent GB-870453-A (GB)
Title: Improvements in and relating to the seaming of sheet material
Inventor: CLEMENTS REGINALD GEORGE
IPC: B29C65/72
Filed: 1957-08-08
Abstract: 870,453. Seaming non-metallic sheet materials. COMMUNICATIONS PATENTS Ltd. Aug. 8, 1957, No. 25056/57. Class 42 (1). A seam is produced between sheets of plastic coated textile material by assembling overlapping portions of the material 3, 4 with an intermediate layer of thermoplastic material, stitching the assembly together and subjecting the assembly to a heating process which softens the intermediate layer so that it flows and seals the stitching. The intermediate layer extends beyond the edges of the material 3, 4 so that when heated the overlapping portion seals the edge of one sheet to the plastic coating of the other sheet. The assembly is heated by means of dielectric heating from a high-frequency electric wave generator. The material may comprise canvas coated on one or both sides with polyvinyl chloride.
Patent GB-630868-A (GB)
Title: Improvements in or relating to electrical heating elements
IPC: F24H3/00
Filed: 1946-08-22
Abstract: 630,868. Electric resistance heaters. DULRAE, Ltd., and STEELE, W. H. Aug. 22, 1946, No. 25063. [Class 39(iii)] A sheet 1 supports two lengths of resistance wire 33, 34 in slots 35, 36, the lengths extending across opposite faces of the sheet. The wire lengths, which are electrically in parallel, are connected to terminals, one of which is shown at 37. The supporting sheet may be of insulating or conductive material, and the elements bare or insulated respectively. A method of forming a heating panel therefrom is described.
Patent GB-1346273-A (GB)
Title: Metal plating of plastics materials
IPC: C23C18/20
Filed: 1972-05-26
Abstract: 1346273 Electroless plating of plastics DR ING MAX SCHLOTTER 26 May 1972 [28 May 1971] 25098/72 Heading C7F Prior to coating plastics material with metals by electroless or electrolytic methods, the surface of the plastics material is exposed to an atmosphere containing SO 3 . The SO 3  can be mixed with a carrier gas, e.g. air, O 2 , N 2 , CO 2  or rare gases, but the preferred source of SO 3  is fuming H 2 SO 4  (oleum). The plastics material is exposed to SO 3  for between 1 second to 20 minutes at a temperature between 30‹C. and 130‹C. After treatment with SO 3 , the plastics surface may be activated by a solution of PdCl 2 , Pd(NO 3 ) 2  or AgNO 3  in HCl, H 2 SO 4  or ammonia salt, sensitized by a solution of SnCl 2  in HCl, and reduced by a solution of N-diethylamino borazane or formaldehyde. In examples, various plastics are coated with Ni or Cu by electroless deposition, and the coating thus obtained may be subsequently electroplated with Ni, Cu, Ag, Au, Sn, Cd or Zn. One of the electroless Ni baths contains nickel chloride, sodium acetate, sodium citrate, the sodium salt of methylene bisnaphthyl sulphonic acid and diethylamino borane.
Patent GB-812643-A (GB)
Title: Improved means for playing a game of chance
IPC: A63F5/04
Filed: 1956-08-16
Abstract: 812,643. Chance apparatus. CARTER, P. YOUNGMAN-. Aug. 16, 1957 [Aug. 16, 1956], No. 25114/56. Class 132(2) Balls of three different sizes 22, 24, 26 are fed from a spiral track 27 on to an upper spinner 15 having peripheral compartments 21 bearing indicia and each having an aperture in the base to retain large ball 22 and allow balls 24, 26 to fall on to middle spinner 10 which likewise has peripheral, apertured, marked compartments 23 to retain 'ball 24 and allow smallest ball 26 to fall on to lowest spinner 4 which has peripheral marked compartments 25. Thus three different indicia are selected, one from each series.
Patent GB-518437-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04L27/06
Filed: 1938-08-26
Abstract: 518,437. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. (Vinogradoff, C.). Aug. 26, 1938, No. 25156. [Class 40 (v)] In a receiver with means for deriving A.V.C. voltage from the signal detector, a voltage opposing the A.V.C. voltage is introduced into the control circuit when the output of a local oscillator is applied to the detector for C.W. reception. As shown the A.V.C. voltage is developed across the resistance R1 in the grid circuit of the triode detector portion of the triode-pentode valve V1. For heterodyne reception switch S2 is closed to energize the pentode portion of valve V1 which acts as local oscillator, the screen grid G2 acting as anode and the anode P1 being connected to the grid G of the detector. At the same time switch S1 is opened to introduce resistance R3 into the A.V.C. circuit the voltage across which, produced by the cathode current of valve V1, opposes the A.V.C. voltage across resistance R1.
Patent GB-317792-A (GB)
Title: Improvements in electro-optical modulators
IPC: G02F1/07
Filed: 1929-08-19
Abstract: 317,792. Soc. Independante de Telegraphie sans Fil. Aug. 22, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Light-valves.-A Kerr cell for use in picturetransmission, photophony and other purposes comprises two piezo-electric crystals within which the light-pencil undergoes repeated internal reflection. Light from a source a passes through crossed Nicol or Glazebrook prisms e, f, a collimating system h, b, and a pair of piezo-electric crystals d whose faces are silvered, windows g being left in the silvering so that the light-beam passes through the crystals but undergoes repeated internal reflection therein. The crystals are cut and positioned in such a way that the light-beam is extinguished normally but is transmitted on the. application to the crystals of an electric field.