baber/WOPTO huggingface dataset:
Patent GB-998324-A (GB)
Title: Improvements in and relating to the separation and concentration of hydrogen peroxide produced in the anthraquinone process
IPC: C01B15/013
Filed: 1962-06-14
Abstract: 998,324. Separation of hydrogen peroxide from aqueous solution by distillation. FMC CORPORATION. June 14, 1962 [Aug. 4, 1961], No. 22838/62. Heading B1B. Concentrated hydrogen peroxide is separated from an aqueous solution, containing carbonaceous impurities, obtained by extracting the hydrogen peroxide from the product of the anthraquinone process with water, by introducing the aqueous solution through line 10 into a heater 12 where a substantial proportion of the water and hydrogen peroxide are vaporized, these vapours enter rectifier 20 from the base of which a product containing 50-80% by weight of H 2 O 2  is withdrawn. A residue comprising 2-10% by volume of the feed is continuously withdrawn from the heater 12 and is passed through line 22 into column 16 where hydrogen peroxide is stripped from the residue by means of steam which has been withdrawn from the upper section of rectifier 20 and introduced, via line 30, into the lower section of column 16. A final residue, containing all the carbonaceous impurities and only 1-3 % by weight of the H 2 O 2  in the feed, is discharged through line 38 from the reboiler 36 of column 16. Water is introduced into the top of the rectifier 20 through line 26 and into the top of column 16 via line 42. Aqueous hydrogen peroxide is withdrawn from the side of column 16, and is passed through line 14 to heater 12. The process is carried out in absolute pressure of about 30-100 mm. Hg. Excess steam is removed from the system through lines 44 and 46. This steam may be condensed, and the condensate used as reflux for rectifier 20 and column 16. The apparatus should be constructed of glass, stoneware or passivated stainless steel. Stabilizing agents, such as sodium stannate or dipicolinic acid, may be added at any point in the system.
Patent GB-644263-A (GB)
Title: Improvements in supports for ceramic ware during firing
IPC: F27D3/12
Filed: 1948-08-31
Abstract: 644,263. Telescopic posts. LOVATT, J. W. A. Aug. 31, 1948, No. 22881. [Class 20(i)] [Also in Group XII] Posts for supporting shelves adapted to carry ceramic ware during firing comprise sectional lengths 11 with spigot and socket joints of oval cross - section, the spigots 13 being slightly smaller than the sockets 12, flanged bottom sections 14, and top sections 16 provided with helical teeth 17 co - operating with helical 1 lugs 19 on flange members 18 as disclosed in Specification 643,809 so that relative rotation of said top sections and said flange members adjusts the height of the posts. The stability of the posts is increased by rotating the sectional lengths 11 until adjacent lengths bind together as shown in Fig. 4 and distance pieces may be inserted between adjacent sections. The posts are shown assembled on the floor of a kiln truck. In a modification (Fig. 5, not shown) the section 16 is disposed in the middle of a post and co-operates with a member above it having helical teeth, both parts being formed with a round socket engaging an axial pin. In a further modification (Fig. 8, not shown) special T- shaped elements of the type disclosed in Specification 635, 047, [Group XII], are inserted at the base of and at intervals in the posts, said elements having circular axial openings large enough for the spigots 13 to turn freely therein.
Patent GB-410365-A (GB)
Title: Thermal insulation
IPC: F25D23/06
Filed: 1933-08-17
Abstract: 410,365. Nonconducting coverings for heat; refrigerators. PARISH, R. L., 25, Broadway, New York, U.S.A. Aug. 17, 1933, No. 22973. Convention date, Aug. 17, 1932. [Classes 29 and 64 (ii).] Heat transmission between the outer and inner shells 20, 21 of a refrigerator cabinet is prevented by a unit structure 29 having one or more sheets of dullsurfaced metal such as cold-rolled black steel of 0.006 inch thickness. The metal surface has high reflective and low emissive properties within the wave lengths of the radiation concerned. The unit, Fig. 5, is formed with bent edge portions 30<a> integral with the sheet 30, while the sheet 31 is formed with a flange 31<a> interlocking with the part 30<a>. The central plane of the two sheets, or the sheet itself if there is only one, is arranged closer to the wall exposed to the higher temperature, at a position which may be calculated. Each sheet may have parallel ribs, and the parts between the ribs may be slightly inclined to one another instead of being in the same plane. In a modification, the spaces between the ribs may be provided with shallow diamond-shaped depressions.
Patent GB-614820-A (GB)
Title: Screening or conveying apparatus
IPC: B07B1/42
Filed: 1946-08-01
Abstract: 614,820. Jigging conveyers. STBAIN, G. H. Aug. 1, 1946, No. 22973. [Class 78 (i)] [Also in Group II] Apparatus for conveying or screening pulverulent or broken material of the kind comprising a secondary mass including a tray or screening member which is caused intermittently to make impact through a striker against a primary reciprocating mass by an elastic connection, is provided with springs 7, 8 inserted, respectively between the secondary mass 2 and the primary mass or anvil 1 in a state of compression coupling the secondary mass to the primary mass, and between the screen frame 12 and the stationary frame 14, thereby coupling the secondary mass to stationary members removed from the vibrating mass. The springs 7, 8 act in opposition to one another and determine the natural frequency of the secondary mass 2. The tension of spring 8 may be adjustable by wing-nut 9. The degree of collision between the secondary and primary masses 2, 1, may be viewed by means of pusher rods 5 operated by wheel 6. These rods vary the compression of two of the eight springs 4 which determine the natural frequency of the primary mass 1 and maintain its static position in relation to the secondary mass. A semi-cylindrical trough 10, Fig. 5, adjustable about its longitudinal axis 11 controls the forward flow of the material on to the screen or tray 3. Specifications 493,216, [Group II], 533,438, 552,073 and 571,102, [Group II], are referred to.
Patent GB-962851-A (GB)
Title: Improvements in or relating to methods of bonding
IPC: C09D167/00
Filed: 1960-07-01
Abstract: 962,851. Cementing footwear. BOSTIK Ltd. July 1, 1960 [July 10, 1959], No. 23034/60. Heading A3B. [Also in Division B5] Surfaces are bonded together by applying to one surface a thick layer of a molten amorphous adhesive composition comprising a crystallizable linear polyester resin, supercooling the composition, or allowing it to supercool, below its crystal melting point but above its second order transition temperature, in amorphous condition, and pressing the second surface against the composition, causing it to flow and inducing crystallization to form a firm bond. The resin used is preferably a copolyester (in molar ratio between 60:40 and 90:10) of terephthalic and isophthalic acids esterified with a straight chain glycol of 2-10C atoms having the hydroxyl groups on the terminal atoms, the preferred glycols being those having an even number (for example 2, 4 or 6) C atoms, the most preferred being 1,4-butanediol. In making the resins the glycol may be reacted with the acids themselves or their methyl esters or acid glycols. In the preferred application the molten resin is extruded and cooled to form supercooled rods, and these rods are used in a heated gun to apply a line of molten resin to an insole 12 held with an upper 10, and lining 20 and box toe material 22, on a last 13 of a lasting machine, the turned-over edges of the upper 10 then being pressed by the machine against the insole to spread the resin into a crystallized layer 28. Specifications 962,852 and 962,853 are referred to.
Patent GB-1222043-A (GB)
Title: Speech transmission systems
Inventor: BURON RENE HENRI
IPC: G10L19/02
Filed: 1969-05-06
Abstract: 1,222,043. Vocoders. INTERNATIONAL BUSINESS MACHINES CORP. 6 May, 1969 [27 May, 1968], No. 23045/69. Heading H4R. A channel vocoder has a number of filter channels arranged in contiguous, non-overlapping fashion across the normal frequency band of voiced speech, e.g. 250 to 3700 Hz., and a further filter channel which covers the frequency range of the top filter in the normal frequency range, e.g. 3150 to 3700 Hz, together with the remaining part of the normal frequency range of an unvoiced sound, i.e. from 3150 to 7000 Hz. During voiced sounds the signals from the bank of filters covering the normal voiced frequency range are transmitted while during unvoiced sounds the signal from the top channel of the normal voiced frequency range is replaced by the signal from the further filter channel. At the receiver the synthesizer comprises only the same number of channels as are present in the analyzer for the normal voiced frequency band and the channels cover the frequency range of the normal voiced frequency range, the extra energy detected during unvoiced sounds in the range 3150-7000 Hz. on synthesis is concentrated in the range 3150 to 3700 Hz. and gives the impression of greater band-width.
Patent GB-258866-A (GB)
Title: Improvements in carburetters
IPC: F02M13/06
Filed: 1926-09-18
Abstract: 258,866. Lioud, F. Sept. 23, 1925, [Convention date]. Addition to 223,899. Spray carburettors.-The carburettor claimed in the parent Specification is modified by (1) substituting a calibrated air inlet for the regulatable air inlet arranged coaxial with the choke tube, (2) arranging the calibrated air inlet in a separate casting and permitting it to communicate with the choke tube through a &eries of orifices of gradually-increasing area, and (3) placing the nozzles in vertical wells so that they may be removed and changed without stopping the engine. A constant-level tank 1, containing water, communicates through a calibrated nozzle and a channel 3 with a chamber 5 into which projects a. tube 6 open at both ends. A second constant-level tank 2 containing petrol communicates through an aperture 7, calibrated nozzle 8, and well 9 with a chamber 10 into which passes a tube 11 which surrounds a tube 12 open to the atmosphere at its lower end through a calibrated section 13. The tubes form between them annular spaces and terminate at their upper ends in a conduit 14, open to the atmosphere through a calibrated nozzle 27, and communicating with the interior of the choke tube 16 through an annular chamber 15 and a series of apertures 17 of gradually-increasing area from the channel 14 and formed above a shoulder 24 in the interior of the tube 16. In a modification, the apertures 17 consist of sets of orifices comprising an increasing number of a standard size of slit. The well 9 has, in addition to the nozzle 8, a calibrated nozzle 19 in communication through an aperture 28 with the slow-running channel 21 which terminates in outlets 22, 23 of which 23 is covered by the throttle 18, in its closed position. The other end of the channel 21 communicates with the atmosphere through an aperture 20 controlled by a valve 25. Apertures 26 permit of the escape of air during insertion of the calibrated nozzles.
Patent GB-732325-A (GB)
Title: Improvements in or relating to rotor blades for axial flow machines
IPC: F01D5/28
Filed: 1953-08-21
Abstract: 732,325. Turbine, compressor and pump blades. MASCHINENFABRIK AUGSBURGNURNBERG AKT.-GES. Aug. 21, 1953 [Sept. 4, 1952], No. 23169/53. Class 110 (3). A rotor blade for an axial-flow gas turbine, compressor or pump has a protective layer of material of very low wear resistance at those places which are likely to catch against or graze stationary parts of the machine. In the ceramic blade shown, a protective coating 5, preferably consisting of a glaze or other ceramic composition, which will be foamy and highly porous after the blade has been fired, is applied to the blade tip. The layer may be applied over an initial layer of compact glaze. The layer has a low resistance to abrasion and the final machining of the rotor periphery can be done by pushing a slightly conical cylinder over the rotor while the latter is rapidly rotated, thereby grinding the blade tips to the required dimension. In the case of a metal blade, the protective layer may be of sintered metal.
Patent GB-964320-A (GB)
Title: Memory systems
IPC: G11C11/44
Filed: 1960-07-01
Abstract: 964,320. Digital data storage apparatus. RADIO CORPORATION OF AMERICA. July 1, 1960 [ July 10, 1959], No. 23183/60. Heading G4C. [Also in Divisions H1 and H3] An information storage device comprises a closed loop of super conducting material in which binary information is represented by the two directions of current flow, a selecting conductor which determines the information to be stored and when it is to be read and a sensing conductor, also of super-conducting material and located in the magnetic fields produced by the currents in both the loop and the selecting device. Fig. 1 shows the loop 10, of super conducting-material normally in a super conducting state, current in one direction, meaning 1 and in the other 0. Information is stored in the loop by applying current simultaneously and in the same direction to selecting conductors 16, 18 which are also super-conducting but of a higher critical field than the loop. This momentarily drives the loop resistive but when the selected currents cease the loop again becomes super-conductive and the direction of the current in the loop indicates the direction of current in conductors 16, 18 and hence the information stored. The information is read out by applying currents I, -rather smaller than the registered currents to conductors 16, 18. If these currents assist the magnetic field due to the loop at the sensing conductor 14 it becomes resistive; if not, it stays super-conductive. The state of the sensing conductor is determined by a pulse supplied to a sensing device 22 which may be a cryoelectic device, the output at 24 indicating whether or not the sensing conductors are resistive. The read selecting currents are then removed from conductors 16, 18 and conductor 14 again becomes super-conducting. In a further arrangement (Fig. 5, not shown) a single conductor may replace selecting and relay conductors 16, 18 of Fig. 1. The Specification states that at 4. 2k lead may be used for loop 12, Niobium for conductors 16, 18 and Tantalum for sensing conductor 14. The Specification refers to the possibility of having conductor 14 normally resistive. Fig. 6 shows an arrangement in which a number of closed loops is associated with a single sensing conductor 23 which passes them all and which comprises conductors 35 acting as selectors and each associated with all the loops in one column and row selectors similarly associated with all the rows. The appropriate signal is registered by means of "write" signals to the row and column, which energize the super-conducting loop at the intersection. This system is prepared for reading by reading currents also applied to the column and row selectors and the state of the selected loop is registered by sensing device 34.
Patent GB-706316-A (GB)
Title: Improvements in electrical impulse mechanism for use in electrifying fencing
IPC: H05C1/04
Filed: 1949-09-08
Abstract: 706,316. Electromagnetic interrupters. WOLSELEY SHEEP SHEARING MACHINE CO., Ltd., and MACNAMARA, H. J. Dec. 7, 1950 [Sept. 8, 1949; Nov. 12, 1949; Nov. 12, 1949], Nos. 23242/49, 29025/49 and 29026/49. Class 38(5) Electrical impulse mechanism for electrifying wire fencing includes an induction coil and interrupter the latter comprising contacts 7, 8 of which 8 is carried by a balance wheel 9 biased to the ' open ' position, Fig. 3 (not shown). The bias may consist of a pair of volute springs connected to opposite sides of the balance wheel and acting in opposite directions, or it may consist of weights. Since, when no current is flowing the contacts are open, an impulse must be given to the balance wheel to start it and this may be done either by manual operation of a spring loaded rod which impinges on the periphery of the wheel or, as shown, by temporary energization of an electromagnet 20 which then attracts an armature 21 on the wheel. The oscillations of the wheel are maintained by a ' kick' given to the wheel each time the contacts 7, 8 close and the contact 7 is pulled down by the attraction of the armature of the induction coil.
Patent GB-182361-A (GB)
Title: Improvement in metal expanding machines
IPC: B21D31/04
Filed: 1921-09-01
Abstract: 182,361. White, H. E. Sept. 1, 1921. Cutting and making expanded metal ; expanding- dies.-Machines for slitting sheet metal and expanding it are arranged to pass the edges along diverging paths so that metal is spread out in a fan-like manner and the slits opened out into meshes as shown in Fig. 7. A blank sheet is passed between a pair of ribbed rolls 3, 4, Fig. 3, which slit and groove it as shown in Figs. 9 and 10. It is removed from the rollers by strippers 5 and passes along a guideway 6 to ribbed rollers 8, 9 which feed it to members J, J<1>, Figs. 1 and 2, which diverge in horizontal and vertical directions. The members J, J' are pivoted at 11 so that they can be adjusted in a vertical direction and secured by bolts x, and have their outer edges ribbed and grooved at E, E', Fig. 4, to grip the edges of the sheet, which is moved forwards by pairs of ribbed rollers 20, 21. These rollers are geared together and driven from a shaft 44, Fig. 1, which also drives the other parts of the machine.
Patent GB-1468822-A (GB)
Title: Shutter mechanism
IPC: G03B9/08
Filed: 1973-05-16
Abstract: 1468822 Camera shutters KODAK Ltd 9 May 1974 [16 May 1973] 23301/73 Heading G2A A camera shutter comprises an opening blade 1 having a re-entrant opening edge and a closing blade 4 having a complementarily shaped closing edge 4C. As shown, a shutter-diaphragm opening blade 1 has a pear shaped opening 1 c, the narrow end of which forms the re-entrant opening edge. An aperture 1d is provided for a photo-cell (not shown). Depressing shutter release 2 closes an exposure control circuit switch 3b and releases a latch 2a to allow blade 1 to move rightwards across an exposure aperture 10 under the central of a governor 8a, b. Blade 1 operates a timing switch 3a of the exposure control circuit which after a photo-electrically determined period energizes an electromagnet 8 to release a latch 7 and allow closing blade 4 to move rightwards The shutter is re-cocked by a lever 5.
Patent GB-764719-A (GB)
Title: Improvements in or relating to rotary pumps or motors
IPC: F01C1/10
Filed: 1954-08-12
Abstract: 764,719. Rotary engines and pumps. NUEBLING, O. Aug. 12, 1954 [Aug. 13, 1953], No. 23396/54. Class 110 (2). In a rotary engine or pump having internallymeshing rotors of the n and n+1 lobe type, the internal rotor 2 is provided with a rotatably adjustable control valve 11 which is partitioned for separating the inlet and delivery sides, see Fig. 1 (not shown), and has a cross passage 29 for relieving liquid trapped in a diminishing space. As shown, one face of the valve corresponds in width to that of the radial slits 33 in the rotor 2 whilst the opposite face of the valve is of greater width. The shaft 1 and the valve are provided with ports 10, 18 respectively, see Fig. 1 (not shown), for the passage of the liquid. Specification 681,893 is referred to.
Patent GB-379089-A (GB)
Title: Improvements relating to laundry presses
IPC: D06F71/36
Filed: 1931-08-20
Abstract: 379,089. Laundry presses. TULLIS, Ltd., D. & J., and JACK, W., Kilbowie Iron Works, Clydebank. Aug. 20, 1931, No. 23437. [Class 138 (ii).] To permit adjustment of the buck 1 relatively to the head 2 the buck is mounted on a carriage 8 which is provided with a recess 7 into which a member 6 having a domed head 11 is screwed. The head rests upon a portion 3 of the machine frame and is provided with levers 5 whereby the screw may be rotated to adjust the height of the carriage and buck.
Patent GB-947834-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/504
Filed: 1962-06-19
Abstract: 947,834. Hydraulic shock absorbers. FORD MOTOR CO. Ltd. June 19, 1962 [June 30, 1961], No. 23479/62. Heading F2S. An hydraulic shock absorber connecting spring and unsprung components comprises compression and rebound pressure chambers 38, 36 formed in a pressure tube 14, the chambers being connected by a passage 34 external of the tube. An inertia sensitive valve 12 permits fluid flow between the chambers through the passage 34 in response to a predetermined acceleration rate of one of the components. In the construction shown the inertia sensitive valve 12, 12<SP>1</SP> is incorporated in the foot valve assembly 22 and comprises a body member 46 having a longitudinal bore 48 communicating with a cross-bore 50 (not shown) and a spring suspended, annular valve element 52 closing the ports of cross bore 50. The valve element 52 is displaced on jarring of the vehicle suspension to allow fluid to pass from the compression chamber 38 through bores 50, 48 and 42 the passage 34 and port 40 to the rebound chamber 36. In a modification, Fig. 3, an elongated body member 146 is provided with two valve elements 152, 156 mounted for reciprocation against a spring 160 and possessing normally misaligned ports 154, 158. Enlarged ports 154 are aligned with ports 150 of body member 146. In operation valve element 156 moves downwardly or valve element 152 moves upwardly to allow fluid to flow through the then aligned ports. A valve 162 in combination with the chamber housing spring 160 provides a dashpot. The foot valve and the valving of piston 16 are of conventional design.
Patent GB-773805-A (GB)
Title: Television tube grid structure
IPC: H01J19/00
Filed: 1954-08-13
Abstract: 773,805. Cathode-ray tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Aug. 13, 1954 [Aug. 24, 1953], No. 23522/54. Class 39(1). Grid structures of parallel wires mounted in cathode ray tubes are made of cold drawn metal wire in which during the bake out of the tube at a temperature below the recrystallization point of the metal the stresses are partially relieved and increase the tautness of the wires. The grid adjacent to the phosphor stripes 20 of a colour tube comprises two sets of wires 22 passing grooves in bars 24 at each end of the target and secured to hooks 28 insulated from each other. The wire is stainless steel hard drawn which will shrink at the bake out temperature 750F. Other wire materials and their recovery temperature limits are specified and include carbon steel, nickel, tungsten, molybdenum, copper, silver, gold and metal alloys. Specifications 648,257, 745,180, 745,181, 757,071 and 757,811 are referred to.