baber/WOPTO huggingface dataset:
Patent GB-1346921-A (GB)
Title: Elastomeric seal for pipes
IPC: F16L17/025
Filed: 1971-04-19
Abstract: 1346921 Joint-making packing; pipe joints HAMILTON KENT MFG CO 19 April 1971 [12 Feb 1970] 24348/71 Headings F2B and F2G A tubular elastomeric seal for a bell and spigot pipe joint is provided with a circumferential hook portion 7 at one end and sealing ribs 9, 10 on both the inner and outer surfaces, the ribs on the inner surface being staggered with respect to those of the outer surface and being of triangular cross-section with the surfaces furthest from the hook portion extending perpendicular to the inner surface. Preferably, the ribs 9 on the outer surface are equilaterally triangular in cross-section.
Patent GB-1497467-A (GB)
Title: Band-pass filters
IPC: A61F9/02
Filed: 1975-06-06
Abstract: 1497467 Optical filters FRANCE ARMED FORCES MINISTER OF 6 June 1975 [27 June 1974] 24495/75 Heading G2J A band pass filter comprises a transparent or partially absorbing substrate bearing a multilayer filter composed of three metallic layers interleaved with two transparent layers. The transparent layers are preferably of high refractive index and have an optical thickness approximately one quarter of the wavelength of light in the mid range of the pass band. In cases where adhesion of a metal layer to a transparent layer is poor an intermediate very thin layer of material compatible with both layers to be united may be interposed. Advantageously an antireflection coating is superimposed on the external surface of the filter coating, or at the interface between the filter coating and the substrate, or both. The antireflection coating comprises a metallic layer adjacent a transparent layer, the transparent layer in use being situated in such a position that it is the first of the two layers to be traversed by stray light (stray light being light passing in the opposite direction through the filter to the light which it is arranged to filter). A protective layer may form an outer surface. The filter is particularly adapted for use in sunglasses.
Patent GB-744554-A (GB)
Title: Improvements relating to pre-combustion chamber diesel engines
IPC: F02B19/14
Filed: 1953-09-04
Abstract: 744,554. Combustion chambers. DAIMLER-BENZ AKT.-GES: Sept. 4, 1953 [Sept. 4, 1952; Sept. 4, 1952], No. 24515/53. Class 7(3) The outlet. passage 21 of a precombustion chamber 13 is formed by an insert 24 having a convex or flat and which penetrates into a corresponding depression 31 in the piston ,head at top dead centre, the end of the insert being provided with . throttling apertures 29 which open into an annular piston-head depression 22 forming the main combustion chamber ina direction approximately tangential to the adjacent part of:. the wall of-the depression 22. The insert is screw-threaded at 25 into the precombustionchamber wall and preferably comprises a lower part 27. of high-grade steel butt-welded at 28 to an upper part 24 of. lower-grade steel, air insulation spaces 33, 34, being arranged between; the insert and the water-cooled cylinder head wall. The outlet flange 21 is preferably. increased in diameter at its lower end 35 and the apertures 29 may be of constant diameter or may widen or become narrower in the outward direction. In a modification the insert has a flat and the passage 21 is of constant diameter. The injection nozzle 15 is mounted in the precombustion chamber wall 14 which is surrounded by a cooling water jacket 16. Reference has been directed by the Comptroller to Specification 711,389.
Patent GB-1107782-A (GB)
Title: Improvements relating to the making of microporous sheet material
Inventor: SHARP FRANK
IPC: C08J9/26
Filed: 1964-06-12
Abstract: Microporous sheet materials are produced by mixing a synthetic resin with a fine particulate water-soluble pore-forming material and a solvent incompatible with the pore-forming material but capable of forming a gel with the working material, mixing to form a dough, forming the dough to a sheet, heating the sheet to drive off the solvent, leaching in an aqueous bath to remove the pore-forming material and drying, a wetting agent either of the general formula <FORM:1107782/C3/1> wherein M represents an alkali metal and R an alkyl group, or comprising an ethoxylated fatty acid amine, the wetting agent being selected so as to make the finished microporous material hydrophilic.  Specified resins are polyvinyl chloride and polyurethanes.  The sulphosuccinate compounds are surface active at pH 6 to 9 and the ethoxylated fatty acid amines, e.g. of the formula Alk-N-[-(CH2CH2O)2H]2 at pH less than 3.  The surface active agent may also control the cell size in the microporous sheet.
Patent GB-1471694-A (GB)
Title: Capacitors
IPC: H01G4/224
Filed: 1974-06-04
Abstract: 1471694 Capacitors ERO TANTAL KONDENSATOREN GmbH 4 June 1974 [31 Aug 1973] 24710/74 Heading H1M A capacitor, particularly a tantalum solid electrolytic capacitor, is encased by feeding its leads 3, 4, through apertures 7 in wall 8 opposite the open end 6 of substantially cupshaped housing 1 the apertures tapering from the interior towards the exterior of the casing (Fig. 2, not shown) and being smaller in diameter at the narrowest point than the lead extending therethrough. The housing is then filled with resin 5. Housing 1 may be metal in which case apertures 7 have insulating bushings or insulated lead wires are employed, or plastics, in which case they may be initially closed by a thin skin (Fig. 4, not shown). The apertures may be surrounded by an annular bead (Fig. 3, not shown).
Patent GB-913863-A (GB)
Title: A pharmaceutical composition having anti-hypokaliemic properties
IPC: A61K31/19
Filed: 1961-07-07
Abstract: Therapeutic compositions having hypokalemic dimetic and natriuretic properties comprise a solid or sterile liquid carrier and one or more of the compounds potassium hydrogen maleate, dipotassium maleate, dipotassium fumarate and dipotassium succinate.  They may be in solid or liquid forms suitable for oral and parenteral administration.
Patent GB-737966-A (GB)
Title: Improvements in air cleaners
Inventor: READ JOHN RADCLIFFE
IPC: F02M35/02
Filed: 1953-09-07
Abstract: 737,966. Air cleaning arrangements. ROLLS ROYCE, Ltd. Sept. 7, 1954 [Sept. 7, 1953 No. 24736/53. Class 7(2). The invention relates to air cleaning arrangements for oil fuel engines. The invention comprises the combination of an air cleaner including an intake pipe by which the air is led down into an oil bath through which it is discharged flowing thence upwards through porous filter elements and so to the induction pipe and a settling chamber in series therewith which is cylindrical in form into which the air coming from the filter is discharged tangentially so as to be caused to flow around the same and having a well portion below the main air stream through the settling chamber and an exit from the chamber above such well portion. As shown, Fig. 1, a settling chamber 16 is arranged between an air filter 10 and the induction pipe. The air enters the chamber tangentially through a pipe 14. Particles collect on the bottom of the chamber. Oil can drain through the gap 22a. In Fig. 3 the settling chamber is concentric with the filter. The air passes out at 33. A lip corresponding to the lip 22, Fig. 1, might be formed on the pipe 31, Fig. 3.
Patent GB-263245-A (GB)
Title: Foot-arch support
IPC: A61F13/06
Filed: 1925-10-05
Abstract: 263,245. Pease, I. M. Oct. 5, 1925. Foot-arch supports. - A band encircling the foot and carrying an arch-supporting pad or spring is provided with means for fastening the pad or spring in various positions within the band. Fig. 3 shows a transverse section of a support in which the pad 9 is adjustably fastened to the band 1 by a device 15, which may be similar to a paper fastener, and is passed through any one of a series of apertures in the band. Fig. 6 shows a longitudinal section of a support in which the pad is replaced by a curved spring 20.
Patent GB-1146326-A (GB)
Title: Pressure vessels
Inventor: YOUNG ALEXANDER GILLIES
IPC: G21C13/093
Filed: 1965-06-11
Abstract: 1,146,326. Reactor pressure vessels. ENGLISH ELECTRIC CO. Ltd. 9 June, 1966 [11 June, 1965], No. 24793/65. Heading G6C. A nuclear reactor reinforced concrete pressure vessel 20, is provided with hoop cables A-F, and longitudinal cylindrical cavities 21 for containing heat exchangers. Radial, longitudinally extending, ribs are formed on the external surface. Each cable passes half-way round the vessel, within the concrete wall, and the cable ends are anchored at the outside faces of diametrically opposite ribs, 1-12. Each hoop cable passes twice through the particular diametral plane of the shell in which lie the axes of those penetrations 21 corresponding to the two ribs to which the cable is anchored. The central space, 22, contains the reactor core and may be either cylindrical or spherical and the ribs provide additional reaction shielding to compensate for the shielding loss due to the cavities 21.
Patent GB-202186-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F15/06
Filed: 1922-09-13
Abstract: 202,186. Carpenter, C. Sept. 13, 1922. Gas meters. - In a gas meter having a measuring - d e v i c e adapted normally to discharge a multiple or sub-multiple of a cubic foot of gas per revolution, means are provided for readily enabling the capacity of the measuring-device to be adjusted so that it discharges at each revolution a volume of gas containing the energy equivalent of a multiple or sub-multiple of a therm. In a wet meter, said means comprise the usual slidably-mounted overflow pipe together with a scale so calibrated as to indicate the height of liquid which will cause the meter to register the correct number of British Thermal Units equivalent to the quantity of gas of any califoric value passing through the meter, while in a dry meter the scale is provided on the indicating spindle arm provided with the usual slidably-mounted crankpin connected to the flexible chambers. The dial plate is made in two parts 1, 2, the fixed plate 1 registering therms, while the detachable plate 2 registers the number of cubic feet equivalent to a therm or a decimal part thereof, the plate 2 corresponding to the calorific value of the gas.
Patent GB-317402-A (GB)
IPC: H01J1/00
Filed: 1929-08-14
Abstract: 317,402. International GeneralElectric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Aug. 15,1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Metallic-vapour apparatus; vacuum tubes.- Back-firing in gas or metallic-vapour rectifiers is prevented by arranging the anodes close to one another so as to avoid glow discharge between them. Anode surfaces that may cause glow discharge or are ineffective in the direction of the normal discharge may be coated or screened with insulating material. The cathode may be of mercury or other liquid metal or alloys, or may be incandescent in gas rectifiers. The anodes may be arranged in the coldest part of the condensation space of metallic-vapour rectifiers.
Patent GB-361845-A (GB)
Title: Improvements in or relating to bodies of trucks, waggons and the like
IPC: B60P1/56
Filed: 1930-08-19
Abstract: 361,845. Hopper vehicles. WELCHMAN, W. A., 7, Albert Place, Victoria Road, Kensington, London. Aug. 19, 1930, No. 24845. [Classes 103 (iv) and 108 (i).] In hopper vehicles the body comprises a longitudinally divided floor, the parts of which are adjustable and so mounted that the adjacent edges are moved in a direction to separate them when the floor parts are raised in combination with means to maintain the floor parts in adjusted position. As shown in Figs. 3 and 4, the floor members 19 are hinged at their outer sides and adapted to be raised to any inclined position, limited by the stops 38, by means of a longitudinal ridge piece 20 adapted to be raised by levers 34 operated by worm gearing 32, 33, shaft 30 and handle 29. The side walls 11 are pivoted at their upper sides and are released at their lower ends to discharge the contents. In a modification suitable for railway. wagons the ridge piece is integral with one of the floor members 19, Fig. 8, which are pivoted at 59 intermediate of their edges and are operated by screw gearing 60. The side doors 11 are operated by any suitable means such as levers and may if desired be entirely removable. Specification 337,392, [Class 103 (iv), Railway &c. vehicles, Body details &c. of], is referred to.
Patent GB-1064048-A (GB)
Title: Improvements in band clips
IPC: F16L33/025
Filed: 1964-09-16
Abstract: 1,064,048. Band clips. M. MORAN. Sept. 16, 1964 [June 16, 1964], No. 24862/64. Heading E2B. A band clip comprises a double main loop 1 consisting of a pair of superimposed substantially circular loops 1c, 1d of metal from which there projects outwardly, a pair of diametrically opposite tightening loops 3c, 3d formed from the double loop, and which when pinched, contract the latter. The clip may be formed from two main loops welded together as shown or as two superposed convolutions.
Patent GB-734824-A (GB)
Title: Chlorotoloxy-ethyl phosphates
IPC: C07F9/09
Filed: 1953-09-08
Abstract: The invention comprises alkali metal, alkaline earth metal and magnesium salts of mono-2-(4-chloro-o-toloxy) ethyl phosphoric acid. They are obtained by reacting one molecular proportion of 2-(4-chloro-o-toloxy) ethanol with suitably 2 to 5 molecular proportions of phosphorus oxychloride at a temperature of from about 40 DEG  to 80 DEG  C., conveniently by heating the reactants in a refluxing mixture of a solvent such as carbon tetrachloride. Excess phosphorus oxychloride is removed by distillation and the 2-(4-chloro-o-toloxy) ethyl phosphoric dichloride is then reacted with water to give 2-(4-chloro-o-toloxy) ethyl phosphoric acid which is treated with a stoichiometric equivalent of the appropriate alkali metal, alkaline earth metal or magnesium hydroxide or carbonate to give the desired salts.  Examples describe the preparation by such methods of the disodium, calcium, potassium and magnesium salts.  The products are of use in killing germinant seeds.  The 2-(4-chloro-o-toloxy) ethanol employed is prepared by reacting an alkali metal 4-chloro-o-cresolate with an equimolecular proportion of ethylene chlorohydrin or bromohydrin.  Reference has been directed by the Comptroller to Specification 714,559.
Patent GB-387271-A (GB)
Title: Wrapping for surgical bandage parcels
IPC: B65D75/12
Filed: 1932-09-07
Abstract: 387,271. Packing surgical bandages. SÍHNGEN, [nÚe KOK], H. G. and SÍHNGEN, [nÚe SCHENK], M. M., 25, Waldstrasse, Wiesbaden, Germany. Sept. 7, 1932, No. 24918. Convention date, Sept. 8, 1931. [Class 94 (i).] Surgical bandages are enclosed in a wrapper a of rubbered fabric with extensions c eyeletted at d. The packet is closed by adhesion and is opened by pulling the parts c apart. An incision between the parts facilitates the tearing. The eyelets facilitate the assembly of a number of packets by stringing.
Patent GB-840727-A (GB)
Title: Improvements in electrical control systems
IPC: H02P7/06
Filed: 1956-08-15
Abstract: 840,727. Automatic speed control systems. SANGAMO WESTON Ltd. Aug. 15, 1956 [Aug. 15, 1955], No. 24986/56. Class 38 (4). In a control arrangement for a D.C. motor 52 a direct current proportional to the frequency of a tachometer generator 11 is applied through a speedindicating instrument 12 to the points 29, 31 of a bridge comprising resistors 19, 21, 22 and the operating coil 15 of a relay 16, and a direct current proportional to a reference frequency source 13 is applied to the other diagonal points 42, 43 and is adjusted by means of variable resistors 17, 18 to produce no current through the operating coil at the desired speeds. The currents proportional to frequency are produced across saturable core transformers 24, 36. The relay 16 which is of the centre zero-type with permanent magnet 45, 46 and a resetting coil 42 controls the energization of field 72 through a rheostat 68, reversible A.C. servomotor 65, and power relays 50, 51. Operation of a power relay immediately resets relay 16 so that corrections are pulsed, arc suppression being provided by a resistor 76 across the power relay-operating coil 54. Servomotor reversal is obtained by phase displacement of the current to field winding 77 by a condenser 78. Specification 630,531 is referred to.
Patent GB-737967-A (GB)
Title: New crystalline sodium borate
Inventor: BALL GEOFFREY ROBERT
IPC: C01B35/12
Filed: 1953-09-09
Abstract: Sodium diborate monohydrate is produced by evaporating a solution of sodium borate or of a mixture of sodium borates, in which the molar ratio Na2O : B2O3 is 0.50, under pressure at a temperature above 177 DEG  C. but below that at which the monohydrate decomposes.  The process is preferably continued until steam ceases to be evolved. Before commencing evaporation the solution is preferably held at above 177 DEG  C. for a sufficient length of time to redissolve any Auger's borate (2Na2O.5B2O3.5H2O) that may have been deposited during heating of the solution up to 177 DEG  C.  An example is given.
Patent GB-300744-A (GB)
Title: Improvements relating to devices for the interconversion of electric oscillations and sound waves or equivalent mechanical vibrations
IPC: H04R9/04
Filed: 1927-09-22
Abstract: 300,744. British Thomson-Houston Co., Ltd., Young, A. P., and Hutt, J. Sept. 22, 1927. Diaphragms. - In order that purely axial movement may be ensured, a loud-speaker diaphragm 1 of the conical type is attached at its outer edge to a flexible ring 2 formed with overlapping staggered slots 3, Fig. 1. The ring 2 is preferably mounted in an aperture in a sounding- board 7, and its edges are clamped between rings 4 which may be extended inwardly to cover the slots 3, the space between the ring 2 and rings 4 being packed with rubber tubing or other soft material in order to prevent leakage of air. Alternatively, the sounding-board 7 may overlap the ring 2. At its inner edge the diaphragm may be attached to a plate 5 perforated at 6 as described in Specification 269,804. According to the Provisional Specification the ring 2 and disc 5 may be made of fibre and the space within the flanges 8 may be packed with cotton wool. Specification 231,421 also is referred to.
Patent GB-1188386-A (GB)
Title: Process and Device for Production of Chocolate
Inventor: EHLERT OTTO
IPC: A23G1/18
Filed: 1967-05-31
Abstract: 1,188,386. Chocolate. MASCHINENFABRIK HEIDENUA VEB. 31 May, 1967, No. 25019/67. Heading A2A. A process of making chocolate from which confectionery may be moulded or which may be used as a coating on confectionery, comprises applying liquid cocoa compound (i.e. ground cocoa beans), liquid cocoa butter and sugar or other sweetener dissolved in water or milk in admixture, simultaneously or successively to a heated vertical or inclined surface to form a thin film thereon and applying further liquid cocoa compound to the film, the substances which detract from the the aroma being removed with the water which evaporates on heating and the recrystallisation of the sugar or other sweetener being avoided by continuously spreading the descending thin film. The components may be applied from conduits to the inside wall of a cylindrical casing capable of being heated and provided with a rotor with wiper blades for spreading the film, and a suction device for removing the evaporated water and unwanted substances from the casing by suction.
Patent GB-1239953-A (GB)
Title: Improvements in or relating to methods and apparatus for determining the electrical resistance of the sub-soil
IPC: G01V3/12
Filed: 1968-05-27
Abstract: 1,239,953. Geophysical surveying. BUREAU DE RECHERCHES GEOLOGIQUES ET MINIERES. May 27, 1968 [June 6, 1967; Oct. 9, 1967 and Feb. 2, 1968], No. 25222/68. Heading G1N. The electrical resistance of the earth is determined by establishing a vertical electromagnetic field e.g. with a single turn coil and taking measurements, at a distance from the coil, of the vertical and radial components of the magnetic field and the transverse component of the electric field, and determining the resistance from mathematical formulae. Alternatively formulae (with a correction factor) may be used involving only the ratio of the magnetic field. Details of Apparatus. The magnetic field may be created by a single turn aluminium coil energized from a 300 watt variable frequency (D. C. to 30 kcs) power supply at 25 amps; a set of coils having the same resistance and diameters of 11-600m may be provided; the frequency may be varied in octave steps and corresponding bandpass filters used with the detectors.
Patent GB-638977-A (GB)
Title: Improvements in or relating to a method of and apparatus for producing sheets, films, foils and the like of plastic materials
Inventor: BLUMA RENE
IPC: B29C48/10
Filed: 1946-08-23
Abstract: <PICT:0638977/IV (a)/1> <PICT:0638977/IV (a)/2> <PICT:0638977/IV (a)/3> A pellicle in the form of a flattened tube is formed by extruding plastic material through a nozzle 12, Fig. 3, provided with a removable mandrel 17 and a heating element 20, the extrusion passage being of annular cross-section at the entry end of the nozzle and changing progressively to a straight slot 15 at the discharge end, whilst the cross-sectional area of the passage remains substantially constant and equal to the cross-sectional area of the annular passage between the screw conveyer 11 and its container 10. Fig. 5 shows the plastic material as it appears during its passage through the nozzle.  The pellicle 21 passes between pairs of rollers 22, 25, 33, Fig. 1, which may be heated or cooled as required, the rollers 22 having a linear speed equal to or slightly higher than the extrusion speed of the pellicle and in the latter case producing stretching.  Fabric 24 may be passed between the rollers 22 to coat or impregnate it with the pellicle and the rollers 22 may be run at different speeds to obtain effective impregnation.  Heated or cooled plates 27, 28, infra-red ray apparatus 31 or induction current means 32 may operate on the pellicle.  The rollers 25 are run at higher speeds than the rollers 22 to produce stretching and polishing, and the pellicle may be further stretched by the rollers 33 which may be cooled to deliver the pellicle in its final stable state to a drum 35.  The Specification as open to inspection under Sect. 91 refers to many thermoplastic materials which may be used and gives specific examples, including details of the apparatus, materials, temperatures and roller speeds &c. for producing wrapping sheets, electric cable insulation, photographic film bases &c.  In addition, it states that the element 20, Fig. 3, may be a cooling element and that the two layers of the flattened tube comprising the pellicle may be completely integrated by pressure with or without the application of heat.  This subject-matter does not appear in the Specification as accepted.
Patent GB-585199-A (GB)
Title: Improvements relating to reciprocating pumps for injection of fuel into engine cylinders and for similar purposes
IPC: F02M41/12
Filed: 1944-12-18
Abstract: 585,199. Piston packing. FEDDEN, Sir A. H. R., DUNCAN, I. G., and MIRACKI, Z. Dec. 18, 1944, No. 25392. [Class 122 (i)] [Also in Group XXVIII] The end of a pump plunger is recessed and formed with a slot 30 that co-operates with inlet and outlet ports 28, 29. Pressure acting within the recess tends to expand the end of the plunger to increase the fluid tightness in the cylinder.
Patent GB-245728-A (GB)
Title: Gas off-take pipes for fuel distillation retorts or coke ovens or the like apparatus
IPC: C10B27/06
Filed: 1925-10-12
Abstract: 245,728. Mueller, W. Jan. 8, 1925, [Convention date]. Ascension pipes.-The gas off-take pipes C from retorts or coke ovens are provided with internal angular ribs R or rounded ribs R<1> forming undulations. By means of this construction graphite and the crust formations become loose and drop into the oven.