baber/WOPTO huggingface dataset:
Patent GB-1209833-A (GB)
Title: Reinforced plastics material
IPC: B32B27/00
Filed: 1968-04-24
Abstract: 1,209,833. Reinforced plastics laminates- ETHYL CORP. 24 April, 1968 [28 April, 1967; 27 Sept., 1967], No. 19443/68. Heading B5N. A reinfroced flexible laminate comprises an inner woven or non-woven web of strands having interstices therebetween, and on each face a preformed sheet comprising a thermoplastic layer (i) and at least one different thermoplastic layer (ii), layer (i) having a sealing temperature below layer(s) (ii), the sheets being bonded together through said interstices by means of layers (i). Specifically disclosed are preformed sheets of two and three layers. The layer (i) may have a sealing temperature at least 5‹ F., preferably at least 30‹ F., below the layer(s) (ii). Layer (i) may comprise a copolymer of ethylene with vinyl acetate, acrylic acid, methacrylic acid or an ester of acrylic or methacrylic acid, various esters being specified. Layer(s) (ii) may comprise polyethylene, polypropylene, ethylene copolymers, propylene copolymers, polyvinyl chloride, vinyl chloride copolymers, polyvinylidene chloride, vinylidene chloride copolymers, nylon, polycarbonate, polyvinyl alcohol, polyesters, polystyrene or polybutyrates. The outermost layer (ii) may contain pigments or fillers, e.g. carbon black, titanium dioxide, aluminium powder, and may be protected by a metal foil. The preformed sheet may be formed by simultaneous extrusion of layers from a single extrusion die. The strand web may be an open-mesh network, examples of such woven and non-woven webs being given (Figs. 5-8, not shown). The strands may be monofilamentary or multifilamentary, and may comprise viscose rayon, acetate rayon, polypropylene, polyvinyl chloride, polyvinylidene chloride, vinyl chloride or vinylidene chloride copolymer, nylon, cellulose butyrate, polystyrene, polyester, polyvinyl alcohol, metal, glass, asbestos, cotton, wool, hemp or twisted paper. The laminate may be made by assembling the layers and pressing together at elevated temperature, e.g. between laminating rolls. The rolls may be heated or the sheets may be preheated. The web and preformed layers may be supplied continuously.
Patent GB-519924-A (GB)
Title: Process for solubilising igneous rocks
IPC: C01F7/06
Filed: 1938-07-01
Abstract: 519,924. Manures. BLANC, G. A., and JOURDAN, F. July 1, 1938, Nos. 19486 and 19487. Convention dates, July 1, 1937, and June 15, 1938. [Class 111] [Also in Groups III and XIII] Potassium containing ores, such as orthoclase, lencite and muscovite, that have been solubilized by treating the powdered ore with an alkaline or alkaline earth metal hydroxide or carbonate in the presence of superheated steam under pressures of at least 30 atmospheres, may be used directly as fertilisers since they are soluble in soil liquids.
Patent GB-371225-A (GB)
Title: Improvements in or relating to the manufacture of brake drums and other annular bodies
IPC: B21D53/30
Filed: 1931-07-07
Abstract: 371,225. Making rings and brakes. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Rosenburg, R. H. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) July 7, 1931, No. 19605. Convention date, July 12, 1930. [Classes 83 (ii), 83 (iii), and 83 (iv).] Forging-machines; planishing and beating; molecular structure altering by mechanical treatment; chucks.-Annular members such as brake drums are swaged by a number of simultaneously acting radially moving hammers on one peripheral surface while supported on the other. A brake drum 86 is held in a series of jaws 85, together forming an annulus, which are moved inwardly to engage the work by movement along a conical wall 88 when the chuck 11 advances towards the swaging-head causing the jaws to abut against a freely rotatable ring 58. A shaft 21 carries conical rollers 35 which, as the shaft is rotated from a motor 13<1>, strike ribs 34, Fig. 10, on radially movable hammers which may carry hardened inserts 144, to cause them to deliver a succession of blows to the work which is slowly rotated from a motor 14 through a chain drive 113 and gearing 109, 110. A cam 119, rotated with the work, feeds forward a shaft 115 producing axial movement of a conical head 43 to feed the hammers into the work during the first part of a revolution, the swaging being then continued without further feeding movement to harden the surfaces of the drum. When the shaft 21 has been set rotating, the operation is commenced by actuation of a handle 129, Fig. 4, which operates a valve to admit pressure fluid to a cylinder 15 to cause the chuck to move towards the swaging-head through a rack and pinion 107, 106, this movement closing the switch of the motor 14. A stop 137<1> is moved on actuation of the handle 129 into the path of a projection 138 which returns the handle 129 at the end of one revolution of the work and reverses the starting movements. The jaws are moved outwardly to free the work by springs 97, an ejector plate 89 being positively moved by a stop if the jaws jam in the head. Cooling and lubricating liquid is continuously supplied to a reservoir 126 and passes to the hammers through channels 128. Specification 371,223 is referred to.
Patent GB-1014355-A (GB)
Title: Pressure release valve for electrolytic capacitors and a method of its manufacture
IPC: H01G9/12
Filed: 1964-05-12
Abstract: 1,014,355. Closure members. F. OEHME. May 12, 1964 [June 26, 1963], No. 19645/64. Heading F2P. [Also in Division H1] A pressure release valve and closure member for a capacitor comprises a rubber coated hardpaper disc having at least one recess 6 in its periphery. The disc is placed in the capacitor, is supported by a ridge 4 and the capacitor edges are rolled over 5 to seal against the rubber coating of the disc. During an overpressure the rolled-over edge releases before the seal is burst from the container. The recesses may be of various shapes (Fig. 1, not shown), the seals may be oval or circular and the seals may be made from strip from (Fig. 4) punched out while the strip is conveyed, between punchings, a distance shorter than the diameter of the seal.
Patent GB-206892-A (GB)
Title: Improvements in change speed for use more especially on motor road vehicles
IPC: G05G9/10
Filed: 1922-07-18
Abstract: 206,892. Austin, Sir H. July 18, 1922. Controlling variablespeed gearing.-A control lever A movable in a gate F about a ball joint a or the like has an extension a<2> engaging a recess b about the middle of a selector locking lever B. The lever B has stepped ends, the lower longer steps b<2>, b4 always engaging between lugs c on a selector bar C, and between lugs c<1> on a selector bar C<1> respectively. The upper steps b<1>, b<3> are adapted to engage slots d, d<1> in fixed locking bars D, D<1>. In neutral position, the lever B is thus locked at both ends. If, say, the bar C<1> is to be moved, the lever B is moved endways towards the other bar C and then pivoted sideways about the end which remains locked.
Patent GB-1424673-A (GB)
Title: Vacuum or thermo forming sheet material
IPC: B29C37/00
Filed: 1972-04-26
Abstract: 1424673 Sheet forming PRESSED STEEL FISHER Ltd 2 July 1973 [26 April 1972] 19736/72 Heading B5A A moulding 16 that has been formed over a forming tool 11, e.g. by vacuum, has an undercut portion (12), Fig. 1, not shown, and is extracted from the tool 11 by blowing air between the tool and the undercut portion to cause it to expand and clear the tool. The non- undercut portion of the moulding is retained on the tool by a hood 15.
Patent GB-198508-A (GB)
Abstract: 198,508. Golland, T. W. April 11, 1922. Refuse-destroying stoves; dampers.-In stoves for burning sawdust and like fuel, of the type in which the fuel is packed in a container F located in an outer casing A, there being means to regulate the air supply to the bottom of a central shaft L<1> which is left in the fuel, a space H is provided above the fuel container which is connected, by a down-cast flue K to a jacketed space F' between the container and casing. The combustion products thus pass from the space H through the flue K and jacket F<1> to the outlet flue D. The container is provided with flanges J, J<1> which form the ends of the jacket F<1>, and it rests upon walls E on the bottom of the casing, the walls E also forming channels E' through which air passes from openings C to the opening in the bottom of the container. A hit and miss ring damper C' controls the openings C.
Patent GB-239186-A (GB)
Title: An improved direction indicator for motor vehicles
IPC: B60Q1/42
Filed: 1925-08-07
Abstract: 239,186. Scott, M., and Scott, J. May 22, 1925, [Convention date]. Positively moved electromagnetic indicators.- A direction indicator for vehicles comprises a hand D on a spindle C which is rotatably mounted in a casing A attached to the windscreen B. The spindle C has a pinion F gearing with a toothed quadrant H which is carried on a spindle G and has attached thereto an electromagnet J. The casing A is made of magnetic material. When the electromagnet J is energized, it is pulled towards the bottom of the casing A 'and the hand D is swung from its normal vertical position into its horizontal indicating position. The hand D carries a lamp E covered at the front and back by coloured glass.
Patent GB-314546-A (GB)
Title: Improvements in or relating to optical systems particularly those used for cinematography
IPC: G02B27/12
Filed: 1929-06-28
Abstract: 314,546. Cox Multi-color Photo Co. June 30, 1928, [Convention date]. Three-colour systems.-Colour kinematographic pictures are projected from a film by an optical system which is capable of adjustment so that the various primary pictures are properly superposed and focussed, the system being arranged so that correction may also be made for variation in the dimension of the film due to continued use, variation of temperature &c. The system comprises a number of objectives 3 arranged symmetrically about the axis E, E<1> and a negative lens 2 together with a positive lens 1, the positions of the lenses being adjustable both in regard to one another and the plane B, B<1> of the film. In the example described the objectives 3 are spaced further from the axis than the centres of the film pictures and in use are nearer to the film than the focal length so that a, virtual image D, D<1> results situated on the axis E, E<1>. The lenses 2, 1 project this as a real image in the plane A, A<1> of the projection screen. As shown in Fig. 4, the lens 2 is moved with the objectives 3 by a pinion 10 to effect register and the lens 1 is moved by a pinion 8 to focus the pictures on the screen. In a modified form of mount the lenses 3, 2 are moved by a screwed sleeve surrounding the mount in which they are supported. The mathematical basis of the system is described in the Specification.
Patent GB-676644-A (GB)
Title: Improvements relating to optical projection apparatus
IPC: G02B5/10
Filed: 1949-07-29
Abstract: 676,644. Railway light signals. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd:, SHEPPARD, E. A., and STEVENS, S. A. June 22, 1950. [July 29, 1949] No. 19958/49. Class 105. [Also in Group XI] In a light projector comprising a block of transparent material having the form of or part of a paraboloid, hyperboloid, ellipsoid, or cone, for producing a beam of light from a light source situated on the longitudinal axis of the block, the latter consists of a number of separate elements at the abutting surfaces of which reflection of light rays from the source takes place. A shunt or short range railway signal comprises an electric bulb 1, Fig. 2, mounted within a recess 2 in the apex of a paraboloidal block of "Perspex" (Registered Trade Mark), comprising paraboloidal shells 9a ... 9e nested together with a central light concentrating core or lens 10, the lamp filament 4 being at the focus of the paraboloid so that the light rays though reflected parallel at the first reflection are projected as a divergent beam through repeated internal reflection at the paraboloidal surfaces of the shells. A lens or prismatic type of cover glass (not shown) may be provided. The core 10 may, alternatively, be omitted. If the lamp is to be used as a long-range signal the nested paraboloidal shells are such that, only one reflection occurs and a hemi-spherical reflector 5, Fig. 1 (not shown), having its centre of curvature at the lamp filament 4 is provided to reflect into the nested shells the rays emitted rearwardly of the lamp 1. In alternative constructions the transparent paraboloidal body may comprise a number of radial segments, or a number of tapered rod elements. The signal lamp shown in Fig. 6 comprises a paraboloidal transparent block 13 of composite nested form, the front surface 14 being of a concave form, as described in Specification 661,311, for preventing "phantom" signals. A back-light indication is provided by a "Perspex" rod 15 arranged opposite an opening 20 in the lamp casing 21 and transmitting by internal reflection light reflected by an ellipsoidal reflector 22 having one focus at the lamp filament 4 and the other within the rod 15. An opaque screen 24 is interposed to avoid "phantom" signals through the block 13 by daylight entering the lamp through the opening 20. In a modified back-light construction the ellipsoidal reflector 22 is omitted and light rays from the bulb pass into one side of the inner end of the rod 15, to be reflected along the axis of the latter at the end surface of the rod 15 which is axially inclined at an angle of 45 degrees.
Patent GB-807107-A (GB)
Title: Fertilizers
Inventor: HANSON THOMAS KENNETH
IPC: C05B1/02
Filed: 1956-06-28
Abstract: Phosphoric acid or phosphate fertilizers are produced by treating phosphate rock with an acid in the presence of urea nitrate, the presence of which is said to speed the reaction and produce workable slurries in conditions not possible hitherto. The urea nitrate may be added to the reactants either as a solid, aqueous solution or melt, preferably in the range of from 10 to 200 per cent by weight of the rock.  The product so obtained may be granulated and/or ammoniated, and potassium salts added if required to produce an N.P.K. fertilizer.  Phosphoric acid may be produced according to the process of the invention if phosphate rock is treated with sulphuric acid in the presence of urea nitrate, and the product may be ammoniated to give ammonium phosphate.ALSO:A process for the production of phosphatic fertilizers comprises subjecting phosphate rock to treatment with acid in the presence of urea nitrate.  The dissolution of the rock is accelerated in most instances, and a workable slurry is obtained in cirucmstances where otherwise a solid would have resulted. Preferably the acids used are phosphoric or sulphuric or mixtures of the two.  The amount of urea nitrate used is variable preferably being in the range 10 to 200 per cent. by weight of the rock and it may be introduced into the reaction system by mixing it with the rock prior to acid treatment or with the acid prior to reaction or by adding it to the reaction vessel as a solid, aqueous solution or water.  Potassium salts may be added to the mixture to obtain an N.P.K. fertilizer which may be granulated. Further, the product may be ammoniated if required.
Patent GB-1314562-A (GB)
Title: Tunnelling machines
IPC: E21D9/11
Filed: 1970-04-27
Abstract: 1314562 Tunnelling CERVOTEC DEVELOPMENTS Ltd 27 April 1970 [5 May 1969] 20103/70 Heading E1F For detaching material from a tunnel face comprising a first surface displaced in the tunnelling direction from a second surface and separated therefrom by a step a tunnelling machine is provided with one or more implements, means, preferably the means of Fig. 6, associated with each implement for inserting the implement through said second surface to the approximate depth of the first surface at a location spaced a small distance from the step and for causing the implement after each insertion to rotate about an axis to cause the implement to be displaced towards the step to detach an increment of material to expose part of a new step face and means for repositioning the implement for removing further increments from successively exposed steps. Preferably the implement(s) is or are movably or rigidly mounted on an arm integral with a tunnelling head frame, the arm lying along approximately the locus of the step as the head, preferably being as described in the referred to Specification 1314563, is advanced along a helical path.
Patent GB-1286025-A (GB)
Title: Diagnostic recording means
Inventor: MAHONEY JEREMIAH FRANCIS
IPC: A61B6/00
Filed: 1970-04-27
Abstract: 1286025 Spirometers LATADY INSTRUMENTS Inc 27 April 1970 20119/70 Heading A5K A diagnostic recording means comprises a body having an enclosed chamber, photographic means for making a record and responsive to light within said chamber, a spirometer responsive to the pulmonary function of a subject under diagnostic testing, a source of light positioned within said chamber and actuated by said spirometer for movement along a path, and projecting means for directing light from said source for recordation by said photographic means. The record producing portion of the diagnostic recording means comprises a body 18 having a light-proof chamber 20 provided with an opening 22 at one end and a photographic means 26. The opposite end of the body 18 is enclosed by a fluoroscopic screen 30 which produces light within the chamber 20 upon impingement by X-rays. A spirometer 40 includes a cylindrical unit 42 provided with a movable circular piston plate 52, the piston plate being sealed with the unit 42 by a flexible folded rollable diaphragm 60. A tube 62 positioned for receiving pulmonary exhalation from a subject is connected through a valve 66 and a fitting 68 to the upper section 56 of the chamber 54. The section 56 is also connected by the fitting 68 to an air exhaust motor 74. A probe element 78 is connected with the piston plate 52 and protrudes into the chamber 20 moving up and down in a vertical linear path with the movement of the piston plate 52. The element 78 carries at its lower end a light source directed towards a projecting means 90. The projecting means 90 is slidably mounted on a rod (92) horizontally spanning the width of the chamber 20 and includes a reflecting surface 104 disposed at a small angle to the vertical direction. Connected to the projecting means 90 is a carriage (120), Fig. 5 (not shown), having wheels (122) which engage the inner edge of an arcuate track (126), said arcuate track also horizontally spanning the width of the chamber 20. The arc of the track (126) is such that it has its centre of curvature on the vertical line of travel of the probe element 78. The bracket on which the reflecting surface 104 is mounted is attached to the carriage (120), such that, at any position of the projecting means 90 on the rod (92), the reflecting surface 104 is directed towards a point on the vertical line of travel of the probe element 78. The projecting means 90 is driven along the rod 92 by means of a band (136) connected to a constant speed reversible motor (132). A two dimensional trace of volume of exhalation versus time is obtained by said photographic means. An X-ray generating means (14), Fig. 1 (not shown), under the control of a console (16), is also included, the patient standing between said generating means (14) and said fluoroscopic screen 30. X-rays passing through the chest of the patient provide a fluoroscopic image on the surface 193 for producing a latent image of the screen 30 on the light-sensitive film of the photographic means 26.
Patent GB-136225-A (GB)
Title: Improvements in or relating to an Improved Automatic Method of Softening, Treating and Filtering Water for Steam Boilers and other Industrial Purposes, an in Apparatus therefor.
Inventor: WADE-WILTON EDMUND
IPC: C02F1/52
Filed: 1918-12-06
Abstract: 136,225. Wilton, E. Wade-, and Hepworth, W., (trading as Wilton & Son, E. Wade-), and Fuessly, C. H. Dec. 6, 1918. Purifying liquids.-Apparatus for heating, treating with reagents, and filtering water for steam-boilers or other industrial use, comprises a heating-tank a, Fig. 1, to which reagent is supplied intermittently from a tank 6 having a delivery portion 7 and a valve 9 operated intermittently by means of levers 11, 14, a cam 17, worm gearing, and a pulley 22. Air is separated from the water in a cylinder k with vent valve m, as the water passes from the tank a to one or more filters s. Live or exhaust steam is supplied to a heater c by the pipe d. The water to be treated enters by a pipe 23. An open-ended tube q surrounding the end of the pipe n, through which the water passes to the cylinder k, prevents the passage of oil or scum. The purified water is discharged from the filter s into a tank 1, and thence by a pipe 2 to suction pumps for use. Additional chemical may be passed into the pipe 2 from a tank 3. With the modified apparatus shown in Fig. 3, the reagent from the tank 6 is diluted in a tank 38 and raised to the tank a by a rotary pump 41 coupled to a turbine 39 driven by water or steam. The spindle of the cam 17 is also geared to that of the turbine. A modification is described in which the lever 11 is omitted, and the lever 14 acts directly on a downward extension of the spindle of the valve 9. Instead of, or in addition to, the heater c, a heater 28 may be provided on the pipe 23. As shown, the cylinder k is omitted, and the pipe h leading to the filters is provided with a downwardly-turned inlet branch 29, and with a vent valve 31 operated by a float 32. An air-vent cylinder, similar to the cylinder k, may be provided on the filter discharge pipe.
Patent GB-846489-A (GB)
Title: Improvements in stools or other articles to be held from moving on a surface
Inventor: HAMPTON FREDERICK JAMES
IPC: B60B33/00
Filed: 1957-06-27
Abstract: 846,489. Stabilizers; stools. HOSTESS TUBULAR EQUIPMENT Ltd. June 26, 1958 [June 27, 1957], No. 20259/57. Classes 52(2) and 52(3) An article of furniture such as a wheeled stool is held stationary by a friction pad 5 pressed against the floor by a spring 7 and liftable by means of a pivoted lever 8 which can then be locked by sideways displacement. The stool preferably has a saddle type.seat 13 angularly and vertically adjustable and capable of rotation, the lever mechanism being mounted in the base frame for foot operation.
Patent GB-148374-A (GB)
Title: Improvements relating to gyro-compasses
IPC: G01C19/38
Filed: 1920-07-09
Abstract: 148,374. Sperry Gyroscope Co., (Assignees of Tanner, H. L.). Aug. 7, 1917, [Convention date]. Gyroscopic compasses.-In instruments comprising a directionally-sensitive unit pendulously supported in gimbals, the pendular oscillations of the unit are damped by means operating around the gimbal axes of suspension. The frictional damping-means shown in Figs. 2 and 4 comprise a band 76 secured to the bearing-casing 77 on the gimbal ring 0 and coacting with a block 80 secured to the outer ring 8. The bloclc is mounted in a cup 81 secured to a spring 82, the ends of which are held between adjusting-nuts 86, 87 on screws 85. These screws are secured to brackets 84 which are carried by clamps 83 on the outer ring 8. Preferably, the band 76 is of steel and the block 80 of carbon. The band 76 is flattened at the top to diminish the resistance to small oscillations, and it is made with increasing radius as shown at 88 to increase the braking effect when the amplitude of the oscillations increases. In a modification, fluid damping-devices are employed comprising pairs of dash-pots disposed one on each side of a pivot, the cylinders being carried by one of the rings and the pistons by the other.