baber/WOPTO huggingface dataset:
Patent GB-948703-A (GB)
Title: Sound absorbing panel
IPC: E04B1/86
Filed: 1962-04-19
Abstract: 948,703. Ornamenting. EVERS & CO. A/S. April 19, 1962 [April 21, 1961], No. 15355/62. Heading B6G. [Also in Division F2] A sound-absorbing panel comprises a porous board covered at least on one face with a thin fibrous mesh comprising an organic substance which has been melted, dissolved or emulsified and sprayed on to the board through one or more air pressure atomizing nozzles in such a manner that the spray of organic substance is formed into thin filaments. After spraying, the mesh is subjected to a pressure towards the board. The organic substance may contain colour pigments and may be formed from a solution of chlorinated rubber in an organic solvent. Preferably the mesh is formed from a solution of a composition of chlorinated rubber and a copolymer of polyvinyl chloride and polyvinyl acetate in an organic solvent. Furthermore, the organic substance may contain softening means, such as an ester of phthalic acid. The mesh may be coated with a substance, preferably paint, forming with the organic filament material a contact angle which combined with the average spacing of the filaments results in the formation of holes in the coating with diameters of the order of 0.3 to 1.0 mm. Alternatively the mesh is covered with a continuous coating of a material sufficiently flexible to provide the effect of a diaphragm.
Patent GB-502991-A (GB)
Title: A new or improved kneader for kneading machines
IPC: A21C1/14
Filed: 1938-05-23
Abstract: 502,991. Kneading-machines. FERRETTE, A. G. G. May 23, 1938, No. 1539]. Convention date, May 25, 1937. [Class 86] The rotating implement of a kneading- machine is formed as an open frame consisting of radial members b, b<1>, Fig. 1, the ends of which are connected by elbowed members a<1>c, ac<1>, cross members d, d<1>connecting the elbows of one member with the opposite ends of the radial members. In side view the members c, c<1> are straight, the members a, a<1>, d, d<1> being curved, as shown in Fig. 2.
Patent GB-624201-A (GB)
Title: Improvements in gyromagnetic compass apparatus
IPC: G01C19/36
Filed: 1947-06-11
Abstract: 624,201. Gyroscopic apparatus. THOMAS, 1. L. June 11, 1947, No. 15418. [Class 97 (iii)] [Also in Group XXXV] In a gyromagnetic compass system wherein two heading references afforded by pendulously mounted magnetic means and by an azimuth gyroscope are compared to control means for adjusting the gyro heading to correspond with the magnetic, heading and having a movement transmitting system to one or more repeaters for indicating at one or more points the gyroscopic heading, means responsive to the rate at which such movement is transmitted, i.e. to the driving force transmitted, are employed to retard and/or prevent adjustment of the gyro heading consequent upon divergence of the gyro and magnetic headings when the rate or force exceeds a predetermined value. As shown, the voltage in the repeater transmission system T-R, which is proportional to the rate-of-turn of the craft, is applied to a relay 11 which operates when the voltage exceeds a predetermined value to open contacts 12 in the circuit from the means C, wherein the heading from the gyro G and the magnetic compass M are compared, to the precessing means P. In another embodiment, the transmission repeater system voltage operates means to produce a bias voltage which is applied to the amplifier in the precession circuit so that when the rateof-turn exceeds a predetermined value the bias is sufficient to retard and then interrupt the precession of the gyroscope. The control voltage, proportional to the rate-of-turn may be derived from an amplifier in the repeater transmission system.
Patent GB-626641-A (GB)
Title: A process for the production and purification of common salt and other components from brine, including the dehydration of glauber salt
IPC: C01D3/14
Filed: 1946-05-21
Abstract: Impurities in solid sodium chloride are removed by treatment with hydrochloric acid solution, which is subsequently recovered from the dissolved impurities by distillation.  In an example, a brine solution is, if desired, treated with solid soda ash, or a concentrated solution thereof to precipitate magnesium carbonate, which when dried may be added to table salt, and the filtrate evaporated to dryness in a multiple effect evaporator and/or by a solar process.  The solid salt is treated with hydrochloric acid solution of 1.10-1.15 sp. gr. at 0-110 DEG  C., preferably under reflux, ands the solution then withdrawn.  The salt is washed with a saturated salt solution, and traces of acid neutralized with soda. Sodium sulphate resulting from the evaporation of the hydrochloric acid for reuse, is refluxed up to boiling with an aqueous solution of pure ethyl alcohol, or denatured alcohol, or decolourized methylated spirits containing say 2-75 per cent water.  Sodium chloride present in the sulphate is thereby dissolved.  Glauber salt is separated from the cooled solution and washed with an alcohol solution.  If dehydrated sodium sulphate is required, refluxing above 34 DEG  C. is effected.
Patent GB-1032076-A (GB)
Title: Valve device in gas systems
IPC: F16K13/10
Filed: 1964-04-14
Abstract: 1,032,076. Valves. C. G. D. ENGSTROM. April 14, 1964 [April 30, 1963; June 20, 1963], No. 15437/64. Heading F2V. A safety device comprises a safety valve 2, Fig. 1, and a liquid trap 3 arranged in series and controlling the relief of pressure from a conduit 1. The valve 2 comprises a piston 5 loaded by a spring 6 having a passage 9 to connect a pipe 7, leading to the trap, to a chamber 8. The trap is open to atmosphere and if the trap relieves at a pressure of P 1  and the valve alone relieves at a pressure of P 2 , the series arrangement provides opening of the valve 2 at a pressure of P 1  + P 2 . In a modification, the valve 2 is replaced by a ball co-operating with a seat, but once the ball has opened, it does not reseat with a drop in pressure. In a further modification, Fig. 2 (not shown), the valve comprises a diaphragm 30 which is fixed in the housing by a ring 34 engaging threads on the housing. The diaphragm is loaded by a spring 6 but the valve member may act by its own resilience.
Patent GB-1273678-A (GB)
Title: Process of de-inking waste paper materials
IPC: D21C5/02
Filed: 1970-04-01
Abstract: 1,273,678. De-inking waste paper. JAPAN MAIZE PRODUCTS CO. Ltd. 1 April, 1970 [1 April, 1969; 23 April, 1969; 22 Sept., 1969; 29 Dec., 1969], No. 15847/70. Heading D2W. Waste paper is de-inked by beating it in a de-inking agent comprising a dispersion of a polyolefin or a halogenated polyolefin in an aqueous solution of a surface-active agent, and recovering the polymer particles carrying the ink, e.g. by flotation. The polymer may be polyethylene; polypropylene; polybut-1-ene; copolymers of ethylene, propylene and/or but- 1-ene; or a mixture of these; or chlorinated or fluorinated polymers as above. The dispersion may be produced by mechanical pulverisation; by melting the polymer in water and dispersing with surfactant; by swelling with an organic swelling agent, and dispersing with surfactant; or by dissolving in an organic solvent and emulsifying in water with the surfactant. The organic swelling agent or solvent may be a hydrocarbon (cyclic aliphatic or chlorinated), a ketone, an ester, a petroleum liquid, or mixtures. The surface-active agent may be anionic, cationic, amphoteric or non- ionic. The aqueous system may also comprise at least one hydrophilic polymer as protective colloid e.g. starch, oxidised starch, starch phosphate, glue casein, carboxy methyl starch, carboxymethyl cellulose, polyvinyl alcohol, sodium alginate or polyacrylamide. The isolation may also be carried out in the presence of a clay, or a water-soluble metal salt which provides a metal cation having two or more positive charges e.g. Ca<SP>++</SP>, Mg<SP>++</SP>, Ba<SP>++</SP>, Zn<SP>++</SP>, basic Pb salts and Al salts. A water-insoluble metal salt may also be produced in situ in the aqueous system by adding a water-soluble metal salt e.g. CaCl 2  and an acid e.g. H 2 SO 4 , whilst the separation is taking place.
Patent GB-454106-A (GB)
Title: Improvements in holders for confections
IPC: A23G9/50
Filed: 1935-05-28
Abstract: 454,106. Holding - tools. BEECH'S CHOCOLATES, Ltd., and COLLINSON, E. W., Peel Hall Works, Preston, Lancashire. May 28, 1935, No. 15535. [Class 61 (ii)] A device for holding a cylindrical &c. wrapper lined with confection whilst filling it with ice-cream &c. by scooping it within a mass of the material comprises a pair of semi-cylindrical members 10, 11 pivoted together at 14 and pro. vided with handle portions 15, 16 for opening them the members 10 11 are formed at one end with a seating 20 for the wrapper and at the open end with a lip 18 to project over the edge of the wrapper. In the modification, Fig. 6, the semi-cylindrical members 20, 21 are connected by a longitudinally disposed pivot 24 and provided with handles 22, 23.
Patent GB-903282-A (GB)
Title: Improvements in or relating to pirns
IPC: B65H75/28
Filed: 1959-05-06
Abstract: 903,282. Bobbins. RUTI MACHINERY WORKS Ltd. May 6, 1959 [May 6, 1958], No. 15544/59. Class 120(3) The free end of a yarn 10 wound on a pirn 20 is secured by winding such end around the pirn end 20a and subjecting the end coil or at least one of the end coils thus formed, as at 2 ; 3 and 3a; 4, 5 and 6 ; 7, 8 and 9 ; in Figs. 1, 2, 3, 4, to a mechanical action disturbing the order of the yarn layers in the coil, e.g. to produce the coil forms as shown in Figs. 1a-4a. As shown in Figs. 5 and 5a, the yarn-end portion 13 is pushed or drawn in a loop 14 into or completely through the end-coil 12. Alternatively, the coil may be treated by mechanical force so that the yarn layers roughen and felt with each other, or, shortly before the ejection of the wound yarn from the winding machine, the coil may be deformed by a pressing member acting in radial or radial and axial direction, Figs. 6, 6a-8, 8a (not shown).
Patent GB-837116-A (GB)
Title: Shovel implement for shifting loose material
IPC: B62B5/00
Filed: 1957-05-16
Abstract: 837,116. Hand trucks; tipping. vehicles. JAGER, R. May 16, 1957 [May 16, 1956; Sept. 6, 1956], No. 15564/57. Class 108(1) [Also in Group XXXI] A barrow which may be motor driven has a frame 1 supported on a central wheel 6 and two outside wheels 7 and is provided with a scoop-shaped body 11 pivoted at 10 to the frame 1. To the upper side of the body 11 is secured a handle 13 by means of which the body may be tipped and a catch 14 retains the body in position.
Patent GB-350205-A (GB)
Title: Method of and means for obtaining high-tension unidirectional current
IPC: H02M1/20
Filed: 1930-05-21
Abstract: 350,205. Rectifying alternating current. LODGE-COTTRELL, Ltd. and LODGE, L., George Street Parade, Birming- ham. May 21, 1930, No. 15599. [Class 38 (ii).] Commutator switching-arrangements; static contact rectifiers, arrangements of.-High tension unidirectional current for use in the precipitation of suspended particles from gases is obtained by rectifying alternating current by an arrangement comprising a mechanical rectifier in combination with a static contact rectifier. The mechanical rectifier 2, which may be of the type described in Specifications 185,891 and 204,276, [both in Class 38 (ii), Electric currents, Converting &c.], is connected in series with one or more groups of copper-oxide rectifiers 8, 9 on the output side of a supply transformer 7. Where two or more discharge electrodes operating at different potentials are used, static contact rectifiers of different resistance values are inserted in the supply lines to the different electrodes. A safety device such as a spark gap is included in each supply line.
Patent GB-593925-A (GB)
Title: Improvements in rim-brakes for bicycles and the like
IPC: B62L1/10
Filed: 1945-06-20
Abstract: 593,925. Rim brakes for bicycles. CLAREMONT, W. L., NORMAN, F, G., BURGOYNE, G. W., and HANDS, R. A. June 20, 1945, No. 15687. [Class 136 (i)] In a rim brake the shoes 12, are carried by slidable members 11 which are moved into braking position by bell-crank levers 7, 8 actuated by slidable members 14 coupled to a cable 20 or other remotely controlled member, the bell-crank levers and the slidable members being enclosed in a casing 2. Each member 11 is guided between a fixed bearing surface and the cylindrical boss 6 of the bell-crank lever which also makes rolling contact with the members 14. The casings 2 are mounted on the ends of a U-shaped frame 1 to the middle of which is pivoteda spring 21 for separating the shoes. The frame 1 is attached to the bicycle frame by clips secured to its ends.
Patent GB-624221-A (GB)
Title: Improvements in or relating to fluid operated rock drills
IPC: E21B1/30
Filed: 1947-06-16
Abstract: 624.221. Percussive drills. INGERSOLLRAND CO. June 16, 1947, No. 15808. Convention date, July 23, 1942. [Class 124] In a fluid actuated rock drill a passage is provided from the exhaust port to a cavity in the drill body communicating with the drill hole and a valve is arranged selectively to prevent exhaust fluid passing to atmosphere, to cause the piston and distributing valves to assume positions for charging one end of the piston chamber and permit the pressure fluid to flow from such end of the piston chamber through the passage and into the cavity. As shown, pressure fluid enters a drill body through a valve 55 and is fed to either side of a piston 27 through distributing valves 40 and ports 41 and 42, finally exhausting through a port 26 and a valve 60. A passage 58 leads from the exhaust port to a cavity 31. Fig. 1 shows the normal operating position of the drill. If it is desired to blow out the drill hole the valve 60 is moved to the position of Fig. 2 which opens the face 44 of the distributing valve to atmosphere, causes the piston to assume a position in the front of its chamber and allows the pressure fluid to pass through the passage 58 into the cavity 31, finally to the drill hole through the passage 34 in the steel 33. Liquid may be supplied to the drill hole by the tube 52.
Patent GB-1416764-A (GB)
Title: Reflector stud
IPC: E01F9/06
Filed: 1973-04-03
Abstract: 1416764 Road marker studs DUNLOP Ltd 26 March 1974 [3 April 1973] 15872/73 Heading E1G A unitary elastomeric reflector stud body having a substantially flat under surface for adhering to a road or other surface is divided, by means of channels 37 in its top face and/or by internal cavities, Fig. 9 (not shown) into zones which can flex substantially independently of each other, the body having at least one side face extending parallel to a channel or cavity and housing a circular or rectangular reflector 31. The channels and cavities reduce disruptive flexing at the interfaces between the body, the reflectors and the road surface. In a modification the stud body is triangular in plan.
Patent GB-1381324-A (GB)
Title: Interlockable panels
IPC: B65D88/00
Filed: 1972-04-06
Abstract: 1381324 Interlockable panel NAYLER (PETROSEALS) Ltd 30 March 1973 [6 April 1972] 15878/72 Heading E1B A rectangular panel, which can be interlocked with similar panels to form a floating tank cover, has complementary channel sections at its ends and sides When the plane of the panel is horizontal one end channel opens upwardly and the other downwardly, while one half of each side channel opens upwardly and the other downwardly such that upwardly and downwardly opening channels alternate around the circumference. The end channels do not extend across the full width of the panel which is in the form of an inverted tray. The panel may be formed from polyurethane foam with additives to reduce static electric charges.
Patent GB-570883-A (GB)
Title: Treatment of non-woollen textile fibres, yarns or fabrics to obtain increased stiffness and other effects
IPC: D06M14/02
Filed: 1943-09-29
Abstract: Non-woollen fibres, yarns or fabrics are exposed at elevated temperatures to the combined action of water vapour and the vapour of a volatile monomeric vinyl or vinylidene compound, under such conditions that substantial polymerization of the vinyl or vinylidene compound is effected within the materials and whereby the stiffness of the materials is increased and their affinity for water vapour decreased.  Specified vinyl or vinylidene compounds which may be employed are styrene, acrylonitrile, an ester of acrylic or methacrylic acid, or a vinyl ester, e.g. vinyl acetate or diallyl-maleate.  The textile material may be wetted out with water, or water vapour, or an aqueous solution containing a wetting agent or a polymerization catalyst such as ammonium persulphate, before exposure to the mixed vapours.  A non-volatile polymerization inhibitor, e.g. copper rosinate, may be added to the liquid monomer-water mixture from which the mixed vapours are obtained.  In the examples, cotton fabric or viscose rayon staple is wetted out with water, squeezed and subjected at 95 DEG  C. to the mixed vapours of water and methyl methacrylate, or cotton fabric is impregnated with an aqueous solution of ammonium persulphate, squeezed, and exposed to the mixed vapours of water and diallyl maleate, or water and styrene, or water and vinyl acetate, or cotton yarn is wetted out with ammonium persulphate solution, centrifuged and treated at 51-54 DEG  C. under reduced pressure with the vapours of water and acrylonitrile.  Specifications 418,449 and 559,787 are referred to.
Patent GB-430541-A (GB)
Title: Improvements relating to containers
IPC: H02G3/14
Filed: 1934-05-29
Abstract: 430,541. Non - metallic containers; lids and covers. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and MOOR, E., 25, Overcliffe, Gravesend, Kent. May 29, 1934, No. 15976. [Classes 18 and 66] [See also Groups XXXVI and XXV] A container of moulded material comprises a rigid cover 1 having a downwardly extending rim 3 from which extend inwardly two projections 4, and a body having a flange 6 provided with gaps 8 through which the projections 4 pass when the cover is applied, the two parts being locked together by rotating the cover. To avoid accidental displacement a pip 5 is provided on one part (the cover as shown) and engages a surface, e.g. the vertical surface of the flange 6, on the other part during the locking movement, ultimately snapping into a recess 7. A slot 13 allows the body portion to be sufficiently deformed while the pip is being forced over the surface which may be shaped as shown at X in Fig. 6. Where the container is used to insulate a coupling member 10, the cables 11, 12 enter through the slot 13. A further entry slot can be made by knocking out a reduced portion of the wall at the opposite side.
Patent GB-412159-A (GB)
Title: Improvements relating to spring upholstery
IPC: A47C7/28
Filed: 1933-02-20
Abstract: 412,159. Spring upholstery. KNOLL, W. C., and KNOLL & CO., GES., W., Feuerbach, near Stuttgart, Germany. Feb. 20, 1933, No. 16044/34. Divided on 411,235. [Class 52 (iv).] A C-shaped blade spring 1 with its curved ends 3 stiffened by auxiliary springs 8 is supported at each end on cantilever springs 5 extending inwardly from the seat frame 2.
Patent GB-562788-A (GB)
Title: Improvements in or relating to refractory heat insulating material
IPC: C04B35/107
Filed: 1942-11-13
Abstract: 562,788. Bricks. CARBORUNDUM CO. Nov. 13, 1942, No. 16104. Convention date, Nov. 14, 1941. [Class 87 (i)] [Also in Group V] A thin stream of molten alumina containing more than 1 per cent of titania, and optionally some iron oxide and silica, is broken,up and formed into solidified bubbles by the impact of a jet of gas or steam ; the walls a of the bubbles may be solid or cellular and may have internal partitions b..The bubbles are stronger than those obtained from pure alumina and may be conglomerated as by moulding and baking them together with clay &c. to which a small proportion of lignone or dextrine may be added, to form heat-insulating bricks &c.
Patent GB-917925-A (GB)
Title: Process for printing fibrous materials and foils of polyesters
IPC: D06P1/92
Filed: 1959-05-11
Abstract: Fibrous materials or foils of high molecular linear polyesters, including cellulose esters, are printed with a non-aqueous paste containing a disperse dyestuff, a volatile organic solvent and/or binder comprising a polyvinyl ester, a polyacrylic ester or a copolymer of vinyl acetate and crotonic acid, then dried and finally heated.  Suitable organic solvents are ethanol, oil of turpentine, butyl acetate, ethyl acetate and butyl lactate.  The paste may also contain a swelling agent such as the diglycol ether of b -naphthol. If the binder is soluble in water or aqueous alkali, it may be finally washed out.
Patent GB-892644-A (GB)
Title: Improvements in or relating to vibratory equipment
Inventor: SHERWEN JOSEPH WILLIAM
IPC: B65G27/20
Filed: 1958-05-20
Abstract: 892,644. Vibratory apparatus. GENERAL ELECTRIC CO. Ltd. May 7, 1959 [May 20, 1958], No. 16185/58. Class 80 (4). Vibratory equipment for a conveyer or feeder comprises a support 1 which is resiliently mounted within a stationary frame and is vibrated by an electric motor 8 having an unbalanced rotor and arranged with its axis horizontal. The motor is mounted in a swivel mounting 11 for pivotal adjustment about a vertical axis, which mounting is carried by horizontal leaf-springs 17, 18 connected by vertical leaf-springs 19. The springs 19 are connected to the support 1 and the pivotal adjustment of the motor is used to vary the amplitude of the vibrations imparted to the support. Specification 823,857 is referred to.
Patent GB-739065-A (GB)
Title: Improvements in auxiliary hydraulic gear mechanisms for mining machines
Inventor: ANDERSON JAMES
IPC: F15B15/06
Filed: 1952-06-27
Abstract: 739,065. Hydraulic transmission of power. ANDERSON, BOYES & CO., Ltd. Aug. 19, 1953 [June 27, 1952; April 28, 1953], Nos. 16202/52 and 11676/53. Class 69 (2). [Also in Groups XXI and XXVIII] A hydraulic gear mechanism for incorporation in a mining machine comprises a pump unit discharging through a control valve into a rotary distributing valve leading to a number of cylinders which are radial to a cam having a number of swells. Pistons co-operate with the cam so as to rotate either the cam or the cylinders and thus effect rotation of some component of a mining machine. The pump unit 1 comprises spring-urged plungers 7 operated by eccentrics on a shaft 9 driven from a motor of the mining machine. Each plunger is actuated through a lever 12 provided with a fulcrum roller 15 engaging the lever and carried by a slide 16 which is displaceable by manual rotation of a spindle 19 so that the stroke of the plungers may be adjusted. The pumps discharge into a control valve 2 of the piston type, having " off," " forward " and " reverse " settings. Pipes 23 lead to a distributing valve 3 of the rotary type controlled by a cam-wheel 5. Pipes 24 lead from the valve 3 to cylinders 25 having pistons 26. Each piston 26 has a connecting rod 27 provided with a pair of follower rollers 29 engaging twin cam profiles 30 of the camwheel, the rod 27 being pivoted to a pair of links 31 which have a fixed pivot 32. The pistons are arranged radially of the cam-wheel and are actuated in sequence to rotate the cam-wheel. In a modification the cylinders are formed radially in a rotary cylinder block and the cam is stationary and formed as an internally cammed ring.