baber/WOPTO huggingface dataset:
Patent GB-2472581-A (GB)
Title: Three dimensional labyrinth puzzle
Inventor: GOODE JEREMY
IPC: A63F7/04
Filed: 2009-08-10
Abstract: A puzzle 2 comprises a transparent cuboidal housing 4, a ball 10 disposed within the housing, and labyrinth plates 20a, 20b, 20c extending within the housing, each plate comprising a planar network of spaced apart, interconnected lands 22a-k. The lands of adjacent plates define a three dimensional pathway (X, fig. 4) extending between, and through, the plates, along which the ball can be moved by tilting and rotating the housing. The housing is preferably in the shape of a cuboid defined by planar walls 6a, 6b, 8a-d, and may be fully enclosed with no openings for removing the ball. The lands 22a-k of a particular plate are preferably spaced apart to provide a channel along which the ball may roll within the plate, with the lands of adjacent plates arranged such that they prevent the ball from leaving the channel at some locations, and define passages at other locations which allow the ball to leave the channel bypassing through the adjacent plate. Adjacent plates are preferably spaced by a distance of around half the ball diameter. The puzzle may include a target region 12 which the ball is moved towards by physically manipulating the housing.
Patent GB-2473207-A (GB)
Title: Switchboard for connection to both landlines and mobile lines
Inventor: KING KOBBY
IPC: H04Q3/62
Filed: 2009-09-02
Abstract: The invention relates to a switchboard 1 comprising a base station 2 adapted to be connected to at least one incoming landline 3A,3B and two or more extensions 4A,4B,4C. At least two circuits 5A,5B,5C,5D,5E and 6A,6B,6C,6D,6E each receive a different mobile line from different service providers. In use the switchboard 1 is able to transfer incoming calls on the landline or mobile lines to the extensions. The circuits to receive mobile lines may be provided by SIM card slots.(PBX, PSTN, telephone, cell, trunk.)
Patent GB-2472470-A (GB)
Title: Variable liquid column oscillator using wave energy
Inventor: CHO BYUNG-HAK
IPC: F03B13/20
Filed: 2009-09-29
Abstract: A wave energy device 6 has a U shaped tube 3 containing water with air chambers 5a, 5b in communication with the ends of the U tube. An air tube 7 connects the air chambers 5a, 5b and has a control valve CV0 between the chambers and further valves CV1, CV2 connecting the chambers 5 to the atmosphere. The air in the chambers 5 acts as a gas spring when the valves CV are closed, and the performance characteristics can be controlled by selectively opening the valves CV. The device 6 can be made to resonate with the waves to improve energy extraction, or operated in damping mode in extreme conditions.
Patent GB-1170897-A (GB)
Title: Improvements in or relating to Processes for Lapping and/or Polishing Semiconductor Plates.
IPC: B24B37/27
Filed: 1968-03-01
Abstract: 1,170,897. Abrading. SIEMENS A.G. 1 March, 1968 [3 March, 1967], No. 10004/68. Heading B3D. A process for lapping and/or polishing a plurality of plate-shaped semi-conductor crystals comprises sticking the plates 5 to a carrier 6 in such a way that their flat surfaces to be worked are all in a single plane, bringing and holding the plates in contact with the surface of a lapping and/or polishing tool in such a way that at and from the moment of first contact the working surface of the tool coincides with the plane of the surface of the plates to be worked, and moving the carrier relative to the operating surface of the tool. For mounting the plates on the carrier, a ring 1 is provided having a number of columns 2, the upper surfaces of which are in a common plane and each of which have a ring of suction holes or a single annular suction gap whereby the plates can be held one to each column with the surfaces to be lapped engaging the upper surfaces of the columns, the plates being initially positioned by being placed in recesses 5 in a template 4, the recesses corresponding to the columns. When the plates are held by suction on the columns, adhesive, such as beeswax, is placed on the upper surfaces of the plates and the carrier 6, which has been heated, engaged with the plates. Upon cooling of the carrier, the suction is switched off so that the carrier now holds the plates with the surfaces to be lapped in a common plane. The carrier plate is then applied to the lapping or polishing tool so that at the first moment of contact, the working surface coincides with the plane of the surfaces to be worked.
Patent GB-897404-A (GB)
Title: Toothbrush
IPC: A46B9/04
Filed: 1961-03-20
Abstract: 897,404. Toothbrushes. DU PONT DE NEMOURS & CO., E. I. March 20, 1961 [April 1, 1960], No. 10035/61. Drawings to Specification. Class 19. In a toothbrush having bristles composed of synthetic polymeric material, e.g. a thermoplastic such as nylon, the free ends of the bristles are split lengthwise into at least two parts for a distance not exceeding one-half of their projecting length. Preferably the distance is between 25 % and 45%, and the bristles are between 0.007 and 0.015 inches in diameter. Specification 684,093 and U.S.A. Specifications 2,697,009 and 2,845,649 are referred to.
Patent GB-1141933-A (GB)
Title: Floor construction and method of making same
IPC: B32B27/00
Filed: 1967-03-03
Abstract: 1,141,933. Laminates. AMERICAN BILTRITE RUBBER CO. Inc. 3 March, 1967 [27 April, 1966], No. 10123/67. Heading B5N. [Also in Division B6] A floor construction comprises a base 2; a laminated material 4 adhered to the base with a hard-setting adhesive 9, the material 4 comprising a lower layer of sponge vinyl 6 and an upper layer of asbestos felt 8 bonded thereto; and a wear layer 10 comprising individual members of resinous composition, e.g. A-B-S. impregnated asbestos or vinyl rubber, at least <SP>1</SP>/ 16  inch in thickness adhered to the asbestos felt layer by an adhesive. The layer 9 may be a hard-setting rubber latex adhesive with a high resin content and the asbestos felt layer 8 may be impregnated with acrylonitrile rubber.
Patent GB-1096226-A (GB)
Title: Improvements relating to methods of restoring the surface porosity of porous refractory metal objects
IPC: C23F1/38
Filed: 1965-03-10
Abstract: After machining, the surface porosity of a porous high melting point metal such as tungsten, containing a filling material, is restored by etching the surface with an etchant which attacks the high melting point metal, but does not attack the filling material.  This process is suitable in the manufacture of dispenser cathodes and gas or air bearings.  Suitable etchants used for sintered tungsten impregnated with copper as a filling material may be either an aqueous solution of potassium ferricyanide and potassium hydroxide or sodium hydroxide, or a hot-dilute solution of hydrogen peroxide.  The copper filling is removed by evaporation after etching.  The filling material for sintered tungsten may also be polystyrene or a mixture of barium and calcium aluminates. If a metal filling is smeared over the surface of the object, this is removed by polishing prior to etching.  The process may be applied to other metal objects such as tungsten-molybdenum alloys, rhenium, molybdenum or tantalum.
Patent GB-849833-A (GB)
Title: Improved mats, boards or shaped pieces made from glass fibre or other thermoplastic mineral materials
IPC: D04H1/4218
Filed: 1957-03-29
Abstract: 849,833. Agglutinated fibrous materials. COMPAGNIE DE SAINT-GOBAIN, [formerly PRODUITS CHIMIQUES DE SAINTGOBAIN, CHAUNY & CIREY S.A., DES]. March 29, 1957 [April 3, 1956; May 11, 1956], No. 10329/57. Class 140. [Also in Group XXIII] A mat of glass or other thermoplastic mineral fibres (e.g. slag fibres) comprises an autogenously agglomerated mixture of at least two different catagories of fibres having the same chemical composition but different thermoplastic properties, the softening-temperatures of the categories differing markedly from one another. A thermoplastic or thermohardening resin may be incorporated in the mixture. The softening temperatures may differ by 100 C. or more. Fibres having the required properties may be obtained by differential collection of fibres emitted by the rotating spinner in the usual method of glass-fibre production. If some fibres are arranged to be collected nearer the axis of the spinner and some fibres farther from it they will have markedly differing softening- temperatures. To obtain mats having cohesion and elasticity a mixture of finer and coarser fibres must be used. To carry out the agglomeration the mixture of fibres is subjected to a temperature between 400 and 700 C. The agglomerated mat may be shaped by subsequent passage between rollers or calenders. Suitable thermoplastic or thermohardening resins which may optionally be included are polystyrene, melamine-aldehyde resins, polyesters, epoxy resins and phenol formaldehyde; also gums, starch or gelatine. As shown, a mat 6 of fibres passes on conveyer-belt 3 through tunnel kiln 1 having heating means 2-2a on its internal walls. The mat travels from right to left and towards the outlet of the kiln it passes between shaping rollers 4-5. Specification 827,411 is referred to.
Patent GB-105403-A (GB)
IPC: B41B11/52
Abstract: 105,403. Harrison, G., (Ludlow Co.). April 12, 1916. Type-bar-making machines; assembling and clamping matrices; matrices.-Italic and like matrices 5 and space matrices 9, having the side edges inclined to the top and bottom edges, are assembled in a holder 1 provided with a clampblock 6 and an end block 8, which are formed with inclined faces. The clamp-block is operated by a screw 7. The holder is provided with a hinged side 2, which is turned down preparatory to assembling the matrices, a spring 4 holding the side in either the open or the closed position. The matrices are provided with notches for engagement with projections 10, 11 on the holder and the hinged side. The character-bearing edges of the matrices may project from the holder. The matrices are assembled with the character edges upwards, and the holder is then inverted and placed over a mould 13 on a table 14, one corner of the holder being placed in the corner of a positioning- stop on the table.
Patent GB-1439421-A (GB)
Title: Centrifugal pipe mould
IPC: B22D13/10
Filed: 1974-03-08
Abstract: 1439421 Centrifugal casting mould BRITISH STEEL CORP 7 March 1975 [8 March 1974 31 July 1974] 10553/74 and 33801/74 Heading C7A [Also in Division B3] The addition of 1À90-4À0% Cr 0À50-2À0% MO to a steel significantly improves its resistance to thermal crazing and renders the alloy suitable for use as a centrifugal casting mould for ferrous pipes or tubes. The steel preferably contains 0À08-0À04% C, and a suitable composition is C 0À08-0À40 Cr 1À90-4À0 Mo 0À50-2À0 Si 0-0À50 Mn 0À3-0À7 Mi 0-0À40 Cu 0-0À25 Sn 0-0À03 with iron as balance containing the usual impurities i.e. P and S. Examples of moulds within this composition range which were cast, forged and either normalized at 960 C followed by tempering at 690‹C or heat-treated and oil quenched from 850‹C followed by tempering at 630‹C, slow cooling at 500‹C and finally aircooling prior to machining to final shape, gave a two-fold increase in service life over the current low-Cr, low-Mo steel presently used.
Patent GB-731872-A (GB)
Title: Hygienic pads
Inventor: HAMPTON RONALD
IPC: A61F13/00
Filed: 1953-04-18
Abstract: An absorbent pad is enclosed in an envelope and secured to the inner face of one side thereof, and all, or the greater part, of the other side of the envelope is made to be readily detachable to expose the pad when required.  The removable part of the envelope may be perforated or scored to facilitate its removal and is provided with a projecting finger tab.
Patent GB-1094780-A (GB)
Title: Improvements in or relating to protection devices for bladed fluid-flow machines
Inventor: RICANEK ZDENEK
IPC: F01D21/04
Filed: 1967-05-25
Abstract: 1,094,780. Turbines; engine stop gear. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA. May 25, 1967, No. 10777/65. Headings F1K and F1T. A protection device for avoiding damage caused by the elimination due to thermal expansion, of the radial clearances between the rotor 1, Fig. 1, and the stator 2 of a bladed fluid-flow machine, such as a steam or gas turbine, includes one or more electrical contacts 3 installed in the stator at a smaller radial distance from the rotor than the stator to cause a device 5 in an electrical circuit to be energized when the rotor touches the contacts to operate a signalling device 7 or a governing device 8 for shutting down the machine. The electrical circuit is a relayless circuit such as a multi-vibrator circuit.
Patent GB-1466783-A (GB)
Title: Process for desulphurizing a flue gas
IPC: C01B17/775
Filed: 1974-03-11
Abstract: 1466783 Oxidation catalyst NIPPON OIL CO Ltd 11 March 1974 [15 March 1973 (2) 16 March 1973] 10792/74 Heading B1E [Also in Division Cl] A flue gas, resulting from the burning of heavy oil or coal, is desulphurised by oxidation of its sulphur dioxide content by contacting the gas with a gas containing molecular oxygen in the presence of an aqueous catalyst solution containing at least 3 ppm each of pentavalent vanadium and divalent manganese ion. The catalyst solution is preferably prepared by mixing soot and/or combustion residue, obtained by the combustion of a fuel oil containing a distillation residual oil, with an aqueous treating liquid to give a catalyst solution containing the requisite amounts of Mn<SP>2+</SP> and V<SP>5+</SP>. "Distillation residual oil" denotes crude petroleum, naturally occurring tar, shale oil, tar sand, or the residue of such oil resulting from the separation of a part or whole of volatile fractions by distillation or other means (for example, atmospheric residual oils resulting from distillation at atmospheric pressure, residual oils resulting from distillation at reduced pressure, or asphalt). The oil usually contains a substantial amount of asphaltene, and therefore, usually contains vanadium and manganese. The term "soot obtained by the combustion of a fuel oil", denotes the substance collected by a dust collector from the upper part of a flue after the combustion of the fuel oil and the term "combustion residue obtained by the combustion of a fuel oil", denotes the substance which is formed by the combustion of the fuel oil and collected from the bottom of an oven or flue. The term "aqueous treating liquid" denotes an inorganic or organic aqueous medium which can act as an extracting solvent for vanadium and manganese contained in a mixture of it with the soot and/or combustion residue, and can dissolve the pentavalent vanadium ion and the divalent manganese ion each in a concentration of at least 3 ppm. The "aqueous treating liquid" may be water alone, or an aqueous solution of for example, sodium hydroxide, potassium hydroxide, sulfuric acid, nitric acid, sulfurous acid, hydrochloric acid, ammonium chloride, or an alcohol.
Patent GB-108349-A (GB)
Title: Improved Apparatus for Measuring and Weighing Quantities of Granular Materials.
Inventor: PATTON WILLIAM
IPC: G01F11/10
Filed: 1916-07-31
Abstract: 108,349. Patton, W., and Weber, C. July 31, 1916. Apparatus fitted to volume-measuring apparatus.-Apparatus for dispensing measured or weighed quantities of granular materials comprises a supply bin, which may be transparent to display the contents, and one or more measuring- chambers adjustable in capacity, both for variation of the quantity to be dispensed and for alteration of density of the material. Means for indicating the capacity of the measuring-chamber to the operator and to the customer are provided, and the measured quantity may be delivered into a pan which may be lowered on to a weighing-apparatus, excess material being supplied to this pan from a separate compartment open to the supply bin but having a manually controlled discharge door. Fig. 4 shows an elevation of two similar measuring apparatus separate from the supply bin 1, Fig. 1, the hoppers 3 being located at the bottom of the bin. The capacity of the measuring-chambers is indicated on dials 124, Fig. 1, and the value or quantity is shown by notches in sliding members 102. The material is discharged into a hopper 135, which may form the scale-pan of a weighing-apparatus or may rest in a neck in an outer hopper 134.
Patent GB-146809-A (GB)
Title: Improvements in or relating to machines for stretching woven fabrics or webs
IPC: D06C3/00
Filed: 1920-04-19
Abstract: 146,809. Kilburn, B. E. D., (Sulzer Akt.-Ges., Geb.). April 19, 1920. Stretching.-In swissing-machines, the chains or flexible series of clamps are caused to travel continuously to and fro along zigzag paths on guide walls, which are supported on roller carriages moving transversely to the walls. The chains b move in guides c on walls t linked to screw spindles swinging on pivots f. The walls are also linked to a swinging arm k connected by a rod l to a crank m. The walls are supported on rollers n on a carriage q moving on rollers r travelling on rails p.
Patent GB-592289-A (GB)
Title: Improvements in trolleybus electric motor control systems
IPC: B60L7/04
Filed: 1945-04-30
Abstract: 592,289. Control of D.C. motors. RAMSDEN, H. K., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. April 30, 1945, No. 10866. [Class 38 (iii)] In a trolleybus control system of the kind wherein a compound motor is adapted for rheostatic braking through the series field winding and resistance, and the shunt field winding is disconnected when the vehicle comes to rest or has its speed reduced to about three to five miles an hour, these operations are effected by an Auxiliary Relay which has an operating coil energized over contacts 4, B1, and O/L when the brake pedal controller BC is actuated, and a holding coil connected across tappings R1, R2 on the series field resistance. The energization of the relay operating coil closes contacts AR1 and AR2, the former being in series with a coil B which closes contacts B to complete the rheostatic braking circuit and also opens a back contact B1 to de-energize the Auxiliary Relay coil, but due to a time-delay device provided in the Auxiliary Relay the contacts AR1, AR2 remain closed while the rheostatic braking current builds up to above the value necessary to ensure sufficient current through the holding coil to maintain the contacts closed. The contacts AR2, through the contacts 6 of the controller, close the circuit through coils S1, S2, S4 of contactors S1, S2, S4 which connect the shunt field winding across the supply L1, L2 through part of the shunt field reistance. The current through the relay holding coil is reduced as the vehicle slows down, and the contacts AR1, AR2 open when the current falls to the predetermined value, thereby disconnecting the shunt field winding from the supply lines. Specification 534,766 is referred to.
Patent GB-914005-A (GB)
Title: Process for the manufacture of polyvinyl alcohol
IPC: C08F8/12
Filed: 1959-03-31
Abstract: Polyvinyl alcohol is produced in a solid filterable form by subjecting a polyvinyl ester or a copolymer of a vinyl ester to alcoholysis with a saturated aliphatic alcohol containing 3-6 carbon atoms in the presence of 12-100% of water and 1-10% of an acid, the percentages being calculated on the weight of the polymer or copolymer, at a temperature of 60 DEG -95 DEG C.  The polymeric ester may be a polymer of vinyl acetate, vinyl propionate, vinyl stearate or vinyl benzoate, or a copolymer of these monomers with themselves or with vinyl chloride, crotonic acid, acrylic acid or methacrylic acid or esters of these acids with saturated alcohols containing 1-4 carbon atoms.  The acids may be hydrochloric acid, sulphuric acid, benzene sulphonic acid, toluene sulphonic acid, naphthalene sulphonic acid, kogosin sulphonic acid, and phenyl-kogosin sulphonic acid. Solvents which are not alcohols, such as gasoline having a boiling range of 50 DEG -160 DEG C., benzene, toluene or xylene, acetone, methyl ethyl ketone, methyl acetate, isopropyl acetate, butyl acetate or ethyl butyrate, may also be added.  The polyvinyl alcohols produced are obtained in a granular form and are nearly colourless. Alcoholysis is preferably effected at 65 DEG -85 DEG C.  The treatment of ethylene/vinyl acetate/fumaric ester interpolymers is excluded.
Patent GB-1033354-A (GB)
Title: Improvements in or relating to dry milk products
IPC: A23C1/05
Filed: 1964-03-16
Abstract: 1,033,354. Dried milk products. FOREMOST DAIRIES Inc. March 16, 1964 [March 20, 1963], No. 10925/64. Headings A2B and A2E. "Instant" fat-containing milk is manufactured by forming moist discrete spraydried particles of fat-containing milk solids, for example by spray-drying milk concentrate preferably in the presence of lactose seed crystals, and subjecting these particles to a rapid heating to 130F.-160F. in an atmosphere of steam mixed with droplets containing lecithin, with intermingling of the heated particles, whereby the particles become sticky and adhere together to form aggregates which incorporate the lecithin, and thereafter removing excess moisture from the aggregates. The size of the final aggregates may be reduced by impact attrition to obtain a product of greater bulk density. The moisture contect of the initial particles is preferably 6-12.5%. The atmosphere employed may be obtained by mixing atomised liquid lecithin with wet steam. The final product preferably contains 0.1-1% of lecithin. The final drying may be effected in a shaker with air at 250F.-300F.
Patent GB-126856-A (GB)
Title: An Improved Method of Indicating the Condition of Steel or other Magnetisable Metal when under Heat Treatment.
Inventor: O'GORMAN MERVYN
IPC: C21D11/00
Filed: 1918-07-04
Abstract: 126,856. O'Gorman, M., and Thomas, G. H. July 4, 1918. Annealing; tempering.-The magnetic change which occurs at a critical point in the heat-treatment of iron, steel, or like metal is detected by observing the variation of reactance in an electric circuit. In the arrangement shown in Fig. 1, the heating coil 2 of a vessel 1 and a coil 4 are arranged as two arms of an induction bridge. When the article 5 to be treated is immersed in the heating-vessel 1, the bridge is balanced by the adjustment of a core 9 in the coil 4. The attainment of a critical temperature is indicated by the disturbance of the balance. In a modification, the variation of pressure across the coil 2 is observed by means of a voltmeter, the initial reading of which is adjusted by means of the core 9.
Patent GB-644795-A (GB)
Title: Improvements in or relating to the cold welding of metal
IPC: B23K20/04
Filed: 1947-04-24
Abstract: 644,795. Jointing; sheathing electric cables. GENERAL ELECTRIC CO., Ltd., and SOWTER, A. B. April 24, 1947, No. 11011. [Classes 83 (ii) and 83 (iv)] Angular bending; rolling.-In cold welding by pressure, about 70 per cent reduction is effected along one line to cold weld, with lateral shearing of excess metal to unite strips, flanges, &c. of aluminium, aluminium alloys, copper or the like. The pressure and shearing means may be separate tools or combined as a pair of cutting rollers. Apparatus for sheathing electric cables with aluminium comprises strip-forming rolls 2; a scratch-cleaning brush 10; a core guide roll 8; strip bending rolls 3, one having a supporting flange; cold welding and shearing rolls 4, 4a; finishing rolls 5 and guide rolls 6, 7. The cold welding rolls 4, 4a are power driven to feed the strip, and in profile section comprise a semicircle 20, a coldwelding face 21 and a shearing and worksupporting edge 22, one roll 4a has a backing flange 19. The pass is circular to receive the sheathed cable with extensions for the joint and other rolls not shown may depress the bead flush with the sheath. In modifications, the strip edges are thickened or folded to provide a thicker bead, and the welding rolls may be skewed. Specification 561,111 is referred to.