baber/WOPTO huggingface dataset:
Patent GB-1535380-A (GB)
Title: Forced air circulation space heating unit
IPC: F24B1/188
Filed: 1976-03-16
Abstract: 1535380 Space heating units; supplying combustion air I C WHITELEY 16 March 1976 10527/76 Headings F4S and F4W A forced draught space heating unit for installation in a fireplace comprises a generally U-shaped conduit 12 having an inlet 20 and an outlet 22 and adapted to be positioned on the floor of the fireplace with the inlet and outlet disposed on opposite sides of the fireplace, a fan 42 for blowing air through the conduit 12 to be heated by burning fuel resting on a base 18 of the conduit, and at least one jet tube 24 or 32 extending from the conduit to supply a stream of combustion air toward the base 18. The conduit 12 is of rectangular cross-section, each leg 14, 16 measuring 2 Î 3 inches and the base 18 measuring 2 Î 5 inches. The conduit is made of sheet steel or cast iron, the thickness of metal in the base 18 being greater than in the legs 14, 16. The tubes 24, 32 are made of ¢ inch diameter copper tubing. A steel pipe elbow 46 is releasably coupled to the inlet 20 and fan 42 so that the inlet and fan can be positioned on either side of the fireplace and connected together by the same elbow 46.
Patent GB-960451-A (GB)
Title: Improved compound semiconductor material and method of making same
Inventor: JOHNSON ROWLAND EDWARD
IPC: H01L29/00
Filed: 1961-03-22
Abstract: <PICT:0960451/C1/1> A doped semi-conductor compound is produced by contacting a mixture of the doping agent and the less volatile constituent of the compound with the vapour of the more volatile constituent at a temperature above the m.p. of the compound, and progressively freezing the resulting molten compound. The compound may contain the stoichiometric amount of, or an excess of, the less volatile constituent, depending on the vapour pressure; and may be practically saturated with the doping agent.  The carrier concentration may be up to about 1020 carriers per c.c. A temperature gradient of 20-45 DEG  C. may be maintained during freezing.  The less volatile constituent may be aluminium, gallium, or indium.  The more volatile constituent may be antimony, arsenic, or phosphorus. The doping agent may be zinc, selenium, or tellurium, or a mixture of selenium and tellurium. As shown, a sealed vessel 19 contains the less volatile constituent and the doping agent in a quartz boat 23 at one end and a quantity 25 of the more volatile constituent at the other end.  Heating is effected by two independent furnaces 17 and 50, the maximum and minimum temperatures, respectively, of which are thermostatically controlled.
Patent GB-457305-A (GB)
Title: Improvements in and relating to means for scavenging the cylinders of two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1936-04-09
Abstract: 457,305. Cylinders. AUTO UNION AKT.-GES., 110, Scheffelstrasse, Chemnitz, Germany. April 9, 1936, No. 10608. Convention date, April 9, 1935. [Class 7 (ii)] In a two - stroke engine cylinder piston - controlled admission ports S1, S2 are arranged on each side of exhaust ports A1, A2 and an inclined baffle c, bell-shaped in plan, causes the scavenging current to be diverted in succession as shown by arrows 1a, 1b, 1c as the piston passes the ports to open them their fullest extent. The height of the baffle c is substantially the same as that of the admission ports, the upper edges of which may be inclined to agree with the slope of the baffle. The baffle may have a rounded nose or extend to the opposite cylinder wall where one or more further admission ports S3 may be provided. These should be either directed towards one another or along the edges of the baffle, which is further so constructed that its centre of gravity is coaxial with the cylinder ; it may comprise a curved wall rising from a flat cylinder face.
Patent GB-615746-A (GB)
Title: Improvements in liquid or lubricant distribution systems
IPC: F16N13/16
Filed: 1946-04-05
Abstract: 615,746. Lubricating systems. TECALEMIT, Ltd., and LE CLAIR, C. C. S. April 5, 1946, No. 10634. [Class 12 (iii)] A lubricant distributing device is operated as and when required, by fluid pressure under electrical control. A number of such devices each supplying an associated point or points may be each separately controlled (for operation at different times) from a master switch or controller driven through reduction gearing from the speedometer shaft of a motor vehicle, from the drive of a machine required to be lubricated or from a clock. The various lubricant distributing devices are supplied with lubricant and pressure fluid (air) through two flexible pipings respectively connecting the lubricant and pressure chambers 11, 31 of all the devices. The lubricant is discharged to the point of use by a plunger 2 when pressure is admitted at the upper side of a piston 18 by the opening of a needle valve provided by a coned end 17A of a rod depending from the plate armature 26 of an electromagnet. The flexible piping may incorporate the necessary electrical conductors as described in Specification 588,748. Specifications 615,709, [Group XXVIII], and 615,710 also are referred to.
Patent GB-466374-A (GB)
Title: Process and apparatus for alkalising or deacidifying water by means of lime
IPC: C02F1/52
Filed: 1936-04-14
Abstract: <PICT:0466374/III/1> <PICT:0466374/III/2> Water which is to be used for the production of lime water is previously treated with sufficient lime water to neutralize the free or partially bound carbon dioxide and passed over material which accelerates the neutralization reaction.  As shown in Fig. 1 lime water drawn from a vessel 1 through an outlet 3 and valve 6 by a pump 5 is added to water flowing through a pipe 2.  The water is passed successively through a vessel 7, containing quartz, calcite, argonite, silicate of calcium or magnesium or other material which will promote the precipitation of calcium carbonate, and through the vessel 1 containing milk of lime.  The main portion of the lime water leaves through an outlet 4.  Fig. 2 shows a similar arrangement comprising a vessel 13 containing pieces of lime supported on a perforated false bottom 12, through which the water passes downward.
Patent GB-1428211-A (GB)
Title: Numerical data input apparatus
IPC: G06F3/14
Filed: 1973-03-06
Abstract: 1428211 Desk top calculator; decimal point positioning SONY CORP 6 March 1973 [9 March 1972] 10732/73 Heading G4A A number is entered into a register X, e.g. for an electronic desk calculator, which usually has its decimal point in a predetermined place. If the number has integer or decimal parts that are too large for the register portion that respective side of the decimal point then the decimal point is shifted accordingly. A keyboard K enters decimal numbers which are each converted to a four bit binary code in encoder E and passed to a 4 bit shift register I and the desired decimal point position is calculated using address counter AD and a decimal point counter PC which memorizes decimal point position. Flip-flop FO indicates that the numeral keys having been depressed and an entered number is recirculated through AND gate B and OR-gate O1. The register X number circulates through AND gate A and OR- gate 02 and the entered number later passes to register X.
Patent GB-650222-A (GB)
Title: Improvements in or relating to aqueous solutions containing soapless detergents
IPC: C11D17/00
Filed: 1948-04-19
Abstract: Stable aqueous solutions of anionic surface active soapless detergents mixed with a water soluble alkali metal salt of a carboxymethyl cellulose, of a higher viscosity than that of the soapless detergent solution, are obtained by keeping the concentration of the soapless detergent below 8 per cent on the weight of the aqueous composition, using not less than 2 per cent of the cellulose salt and employing an alkali metal salt of a carboxy-methyl cellulose having a degree of substitution of at least 0.55 alkali carboxymethyl groups per anhydro glucose unit of cellulose and a viscosity of at least 100 centistokes in a 1 per cent solution in water at 20 DEG  C.  The solutions obtained can be used less wastefully than the ordinary solutions of anionic soapless detergents which are of low viscosity.  Anionic surface-active soapless detergents specified comprise the sodium salts of higher alkyl sulphates such as sodium "Lorol" (R.T.M.) sulphate, "Teepol X" (R.T.M.), and "Halvopow LMX" (R.T.M.), and the sodium salts of alkyl aryl sulphonates such as "Santomerse D" (R.T.M.).
Patent GB-331827-A (GB)
Title: Improvements in or relating to egg-poaching and like appliances
IPC: A47J29/04
Filed: 1929-04-08
Abstract: 331,827. Snowdy, S. April 8, 1929. Egg - cooking apparatus. - An eggpoaching device comprises a box-like receptacle 10 having two hinged overlapping members 11, 12, which have side flanges 25 to embrace the sides of the receptacle 10. The members 11, 12 are normally retained closed by catches 18, each having an inwardly projecting toe 17 to engage beneath the members 11, 12. The fulcrum is in a slotted lug 19 and the upper end of the catch is penetrated by a headed pin 21, a spring 23 urging the toe 17 into the operative position. A handle or suspension member, slidable on the pin 21, is pressed inwards agamst the spring 23 to release the toes 17 to allow the sections 11, 12 to swing open for the discharge of the egg. Drainage of water is permitted by holes 26, which are closed internally by netting. In a modification, four such devices are assembled into a unit, the suspension handle having a centre wire which lies between the receptacles 10. To open a receptacle, the handle is swung to an horizontal position when the wires engage the spring latches retaining the bottom members in position. The centre wire and an outer wire are then grasped; and the corresponding receptacle is opened.
Patent GB-446706-A (GB)
Title: Improvements in or relating to apparatus for playing table football games
IPC: A63F7/06
Filed: 1935-04-08
Abstract: 446,706. Table games. BITHLER, E., 21A, Herrenstrasse, L÷rrach, Germany, and KELLER, M., 28, Kapellenstrasse, Basle, Switzerland. April 8, 1935, No. 10867. Convention date, April 11, 1934. [Class 132 (ii)] Apparatus for playing a table game simulating football comprises a playing board having a cushioned frame 1 provided with goal recesses 4, player - representing balls 9, 10 and a " football " 8. The players have strikers 11 with heads recessed at 13 to the same radius as the balls 9, 10. A stirrup 5 is placed in holes in the frame 1 to form goal posts and cross-bar. An alarm clock placed in the table or the frame indicates the period of play. The frame 1 may be placed on an ordinary dining table.
Patent GB-456115-A (GB)
Title: Improvements in and connected with bolts, for repairing tanls, gasholders and other containers
IPC: F16B35/04
Filed: 1936-04-16
Abstract: 456,115. Bolts. BOTT, T. L., Rosslyn House, Crewe Road, Alsager, Stoke-on-Trent. April 16, 1936, No. 10916. [Class 89 (i)] The connecting limb 1 of a U-shaped bolt is bent or waved so as to give greater support to the patch plate 11 used in the repair of hollow vessels. The contacting face of the bolt may be flattened. In a modification one screwed end of the bolt has a large diameter than the other.
Patent GB-708392-A (GB)
Title: Improvements in scaffold stands for bricklayers
IPC: E04G1/38
Filed: 1952-05-01
Abstract: 708,392. Scaffold stands. SPEIGHT, W. H. April 13, 1953 [May 1, 1952], No. 11023/52. Class 52(3) A scaffold stand for bricklayers comprises a tubular upright a, mounted on feet b, and a tube f of smaller diameter telescoping within the upright, a cotter pin i engaging holes g, h to secure the tube at any desired height, a sleeve j being immovably secured to the top of the tube to slidably receive a putlog k and provided with a locking screw l to secure the putlog. The feet may be formed by projecting limbs welded to the upright and stayed by angles d and the sleeve may have upstanding legs m to receive a toe-board n. The stand is movable towards and away from the wall p according to the width of decking γ required. further supported at the lateral edges by bent strip springs 12 which enter apertures in the rigid frame 1 and are anchored thereto and to the edge member 11 by sleeves 13, 13a. The rear ends of the edge member are bent over and secured to the rigid frame 1. In the case of a mattress for a bed the springs 10 may be connected to the rigid frame at all sides and ends by bent strip springs similar to springs 6, 6a. The helical springs 10 may be replaced by elastic rubber springs. The upholstery may comprise a rubberized hair mattress 14 and a latex foam mattress 16, the latter 'being secured to the springs 10 by strips 18 of fabric.
Patent GB-117323-A (GB)
Title: An Improved Material for the Covering or Jointing of Pipes and the like.
Inventor: MAJERUS VICTOR HOFFMANN
IPC: F16L23/16
Filed: 1917-08-02
Abstract: 117,323. Majerus, V. H., Errington, J. M., and Hammond, A. Aug. 2,1917. Metal pipes and tubes.-A material which is applicable for coating and packing the joints of pipes for conveying acids consists of a metallic soap, either alone, or mixed with china clay and asbestos powder &c. The metallic salts of oleic, stearic or palmitic acids may be used, e.g. lead plaster, aluminium stearate or calcium stearate. A soap is preferably selected which will give an insoluble salt with the acid conveyed by the pipe.
Patent GB-1415462-A (GB)
Title: Method of producing sheet building material
IPC: B32B5/18
Filed: 1973-03-07
Abstract: 1415462 Producing composite building panels; laminates KORNYLAK CORP 7 March 1973 [8 March 1972] 11176/73 Headings B5A and B5N A method of continuously producing a composite sheet building material comprises disposing a layer of foamable polyurethane and a layer of deformable material between moving opposed endless conveyer belts; confining the foaming polyurethane between the belts during foaming to generate a foaming pressure which acts to force the layer of material against the adjacent belt so that it is deformed permanently to conform to a three-dimensional pattern on said belt, and then curing the polyurethane. The layer of deformable material may be a partly cured polyester resin, as in 30 in Fig. 3, a layer 31 of glass fibre reinforced polyester being interposed between the polyester layer 30 and the polyurethane layer 32, an easily deformable sheet 13 of paper, metallic foil, or plastics may be bonded to the polyurethane during foaming and will be textured by the upper conveyer belt. In a modification, the layer 30 may be replaced by a partly cured resin impregnated thermoplastic carrier sheet. In a further modification, the layer 31 may comprise an extruded, partly cured polyester sheet. In another embodiment, Fig. 5, a rigid substrate 35 of wood, metal, reinforced plastics supports a polyurethane foam core 32<SP>1</SP> to which is bonded a sheet 13<SP>1</SP> and an outer resin layer 36 which has been deformed by the foaming pressure to conform to the pattern of the upper conveyer belt.
Patent GB-714458-A (GB)
Title: Improvements relating to multi-channel communication systems
Inventor: RALPH FRANK
IPC: H04J1/10
Filed: 1952-05-02
Abstract: 714,458. Multiplex systems. SIEMENS BROS. & CO., Ltd. May 1, 1953 [May 2, 1952], No. 11185/52. Class 40 (4) In a multi-channel alternating current telegraph system wherein some of the channels are terminated at an intermediate station and the same frequency range is used for communication in the same direction over another part of the system, inter action is prevented by modulating all the signal currents received at the intermediate station so that the frequency bands of the terminated cha,nnels are transposed to a position outside, but adjacent to, the communication band. In one example an eighteen channel system extending over a range of frequencies 420-2460 c.p.s., six channels 420-1020 c.p.s. are received in apparatus R after amplification in amplifier A1, and the whole eighteen channels are also passed via a modulator M and a filter F to an output amplifier AZ. The modulator is fed by a 3600 c.p.s. oscillator and the lower side-bands 1140-3180 are selected by the filter. Six additional channels originating from a sender T and occupying the frequency band 420-1020 c.p.s. are also applied to the amplifier A2 for communication in the same direction.
Patent GB-399887-A (GB)
Title: Means for mounting members on each other about intersecting axes, so as to permit of their independent angular adjustment
IPC: B64C9/02
Filed: 1932-04-19
Abstract: 399,887. Hinges. VICKERS (AVIATION), Ltd. and WALLIS, B. N., Byfleet Road, Weybridge, Surrey. April 19, 1932, No. 11189. [Class 65 (ii).] Means for mounting two structural members on each other about intersecting axes about which said members are permitted independent angular adjustment comprises a locating member, bearings for each of said structural members carried by the locating member adapted to prevent axial movement of the structural members while permitting angular adjustment about their axes relative to the locating member, the locating member being held in position solely by the structural members themselves and bracing members fixed to the locating member. As applied to an aeroplane tail-unit, Fig. 1, which comprises an elevator a tail planes b, b<1> and rudders c, c<1>, the elevator is fixed to a shaft a<1> angularly adjustable in a journal carried by struts a<2>, the tail planes b, b<1> are fixed on a shaft b<2> passing through the fuselage and angularly adjustable therein, and the rudders are fixed on rudder posts c<2> each angularly adjustable about an axis which intersects the axes of shafts a<1>, b<2>. The rudder posts are recessed at c<3> where they are fitted with sleeves c<4> within each of which a plummer block d, Fig. 2, is carried. A locating member e carrying a ball bearing g for the shaft a<1> or b<2> is mounted between jaws d<1>, d<2> of block d by means of trunnions f rotatable in bushes d<3>. The trunnions f are assembled by inserting them from within the bearing housing formed in member e and are located by flanges f<2>. The trunnions f are threaded at f<6> for the reception of locating studs by which they are held during the machining of the bearing housing. After this operation the trunnions f are held in position by the outer face g of the ball bearing for shaft a<1>. This bearing is of the self-aligning type which resists end thrust and is held in position by a distance piece g<2> and ring nut g<3>. The member e is provided with pins e<7> extending outwardly on an axis at right-angles to the intersecting axes of the trunnions f and shaft a<1>. Pins e<7> attach lugs h carrying fore and aft tension stays h<2>, h<3> attached to the fuselage.
Patent GB-700152-A (GB)
Title: Device for influencing the pumping limit of a radial-flow centrifugal compressor
IPC: F04D29/46
Filed: 1952-05-02
Abstract: 700,152. Centrifugal compressors. MASCHINENFABRIK OERLIKON. May 2; 1952, [June 8, 1951], No. 11200/52. Class 110 (1) Surging in a centrifugal compressor is reduced by a hollow cylindrical' throttle valve 1 which is carried by an axially movable carriage 2 so as to be adjustable within the eye of an impeller 8. The carriage 2 has four wheels 4 running in guide grooves (not shown). The valve is actuated by a servomotor 10 through rack 13, pinion 17, cam 15, cam follower 18, tie rod 20 and crank 23. Additional cams for controlling the other stages of the compressor are carried by the cam shaft 16.
Patent GB-358953-A (GB)
Title: Process for the production of phenolates by the alkali fusion of aromatic sulphonic acids
IPC: C07C37/04
Filed: 1930-04-09
Abstract: The excess of free alkali remaining in the fusion melt of benzene sulphonic acid or homologues or derivatives thereof with alkali is converted into phenolate and the melt separated into two layers, the upper consisting of phenolate and the lower of sulphite.  The alkali fusion is preferably carried out with the exclusion of air in a closed vessel.  In an example sodium benzene sulphonate is fused with caustic soda and phenol is added to the melt which separates into two layers.  The separated phenol may be used for the production of salicylic acid.  The process is applicable to the alkali fusion of aromatic sulphonic acids for the production of oxy-benzoic acids, resorcinol, naphthol, alizarine, cresotinic acid, oxynaphthoic acid and the like.
Patent GB-866479-A (GB)
Title: Improvements in or relating to reinforced elastomeric materials
Inventor: MCALPINE ANDREW
IPC: C08L77/00
Filed: 1957-04-06
Abstract: A reinforced elastomeric material is formed by blending nylon with natural or synthetic rubber.  The rubber is mixed, at a temperature of about 50 DEG C., with the usual additives except the vulcanizing agents and accelerators, the temperature is increased to just above the melting-point of the nylon but below the decomposition temperature of the rubber or nylon, the nylon, in the preparation of from 50 to 100% by weight of the rubber, is added and mixed in, the mixture is cooled to about 80 DEG C., and the vulcanizing agents and accelerators are added.  If a high melting-point nylon is used, the melting-point can be reduced by the addition of a sulphonamide plasticizer or the incorporation can be effected in the absence of oxygen, e.g. in an atmosphere of nitrogen.  The tensile strength of the product can be further increased by rolling.  The synthetic rubber is exemplified by acrylonitrile/butadiene copolymer.
Patent GB-844100-A (GB)
Title: Improvements in aircraft take-off indicators
Inventor: FEARNSIDE KENNETH
IPC: G05D1/00
Filed: 1958-04-10
Abstract: 844,100. Ultrasonic velocity-measuring devices. SMITH & SONS (ENGLAND) Ltd., S. April 10, 1959 [April 10, 1958], No. 11355/58. Class 40(7). The measurement of aircraft forward velocity and acceleration for use in a "safe take-off" indicator is carried out by ultrasonic Dopplereffect equipment. Reflected waves from the ground ahead are heterodyned with the output of transmitter source 2 to give a signal corresponding to forward velocity v fed to function generator 9 whose output f(v) actuates pointer 8. The acceleration signal from unit 5 actuates pointer 7. Safe take-off is indicated when α>f (#) i.e. pointer 7 is displaced clockwise from pointer 8. The acceleration signal may be modified by networks 10 adjusted in accordance with ambient temperature and pressure. The velocity signal may be integrated to indicate the extent of runway remaining at any instant.
Patent GB-664949-A (GB)
Title: Improvements in and relating to electric transformers
Inventor: FRANKLIN EDWARD BEAUMONT
IPC: H01F27/14
Filed: 1949-04-29
Abstract: 664,949. Transformers. ENGLISH ELECTRIC CO., Ltd. April 28, 1950 [April 29, 1949], No. 11436/49. Class 38 (ii).  A hermetically sealed  liquid-filled transformer has a space or vessel 4 above the transformer casing for the reception of the surplus liquid produced by expansion due to heating, and a sealed gas chamber 6 situated beneath the transformer which is so connected to the vessel 4 that it receives the gaseous, and not the liquid, fluid displaced from the vessel. The gas chamber 6 is preferably arranged to partly surround the lower portion of the transformer yoke 1 and the connecting pipe 5 arranged to enter the chamber 6 near its lowest point. The connecting pipe 5 may be arranged to pass through the liquid in the tank 3 or alternatively it may be welded or brazed along the exterior surface of the tank 3.