baber/WOPTO huggingface dataset:
Patent GB-938743-A (GB)
Title: Improvements in or relating to ion-exchange materials
Inventor: HEBBS LEWIS GOODIN SPIRE
IPC: B01J47/00
Filed: 1960-02-11
Abstract: An ion-exchange material comprises a cellulosic sponge having dispersed therein an ion-exchanger which may be an ion-exchange cellulose or an ion-exchange resin.  Specified ion-exchange celluloses are cation-exchangers sulphethoxy cellulose, cellulose phosphate, carboxymethyl cellulose, cellulose citrate, cellulose hydrogen phthalate and oxidized cellulose anion-exchangers aminoethyl cellulose, aminopropyl cellulose, diethylaminoethyl cellulose, ecteola cellulose, di-isopropylaminoethyl cellulose and tri-ethylaminoethyl cellulose.  Specified ion-exchange resins are cation-exchangers polystyrene sulphonic acid, phenol sulphonic acid/formaldehyde and polymetha-crylic acid anion-exchangers a styrene polymer or amine/aldehyde condensate having amino groups or quaternary ammonium groups as active groups.  The ion-exchanger is incorporated into a viscose solution and cellulose regenerated from the mixture in sponge form in the usual manner; flax fibres may be included in the mixture.  Specifications 245,049, 308,838, 369,082 and 379,235 are referred to.ALSO:An ion-exchange material comprises a cellulosic sponge having dispersed therein an ion exchanger which may be an ion-exchange cellulose or an ion exchange resin.  Specified ion-exchange celluloses are cation-exchangers sulphethoxy cellulose, cellulose phosphate, carboxymethyl cellulose, cellulose, citrate, cellulose hydrogen phthalate and oxidised cellulose anion exchangers aminoethyl cellulose, aminopropyl cellulose, diethylaminoethyl cellulose, ecteola cellulose, di-isopropylaminoethyl cellulose and triethlaminoethyl cellulose.  Specified ion-exchange resins are cation exchangers polystyrene sulphonic acid, phenol sulphonic acid/formaldehyde and polymethacrylic acid anion exchangers a styrene polymer or amine/aldehyde condensate having amino groups or quaternary ammonium groups as active groups.  The ion-exchanger is incorporated into a viscose solution and cellulose regenerated from the mixture in sponge form in the usual manner, flax fibres may be included in the mixture. Specifications 245,049, 308,838, 369,082 and 379,235 are referred to.
Patent GB-556623-A (GB)
Title: Improvements in or relating to dressings, blankets and the like, particularly for use in hospitals
IPC: A47G9/02
Filed: 1942-04-10
Abstract: 556,623. Blankets. SUTCLIFFE, E. R. April 10, 1942, No. 4773. [Class 142 (iv)] [Also in Group VI] An adsorptive dressing on blanket comprises active carbon applied in a loose, granular or finely divided state and dispersed and retained within a fibrous material such as cotton wool, the fibrous material charged with the carbon being enclosed in a covering of cotton gauze. The carbon c may be disposed between two layers b, b<SP>1</SP> of coarse unbleached cotton wool, and the cotton wool may be arranged between two sheets a, a<SP>1</SP> of fine mesh cotton gauze. To prevent displacement of the cotton wool, the dressing or blanket may be tacked together and passed through a quilting machine. The carbon may be derived from coal as described in Specifications 20679/14, [Class 50], and 166,202, [Class 55 (i)].
Patent GB-395982-A (GB)
Title: Improvements relating to the control of eddy current track brakes
IPC: B61K7/12
Filed: 1933-02-16
Abstract: 395,982. Eddy-current brakes. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Feb. 16, 1933, No. 4783. Convention date, Feb. 27, 1932. [Class 103 (i).] In order that the current in the coils of eddycurrent track brakes for vehicles may be caused to rise rapidly to the stationary value to render the brake effective an impedance which is normally included in the circuit is cut out when the circuit is initially closed and is automatically switched in when the current reaches a predetermined value. The Figure shows a circuit in which current for brake coils 1 is derived from alternating current mains 5 through a transformer 4 and a rectifier 3, the circuit including choke coils 71, 72, 73 which can be selectively switched in to vary the current strength. When the controller 20 is moved to position I, the winding of the switch 6 is energized to close the circuit through the coils 1 and the winding 91 of a switch 9. The winding of a switch 81 is also energized so that the switch is closed to shortcircuit all the choke coils to impress the maximum voltage on the circuit. The windings 92, 93 of the switch 9 are also energized through the controller. When the current in the coils 1 and winding 91 reaches a predetermined value assisted by that in the windings 92, 93, the switch 9 and therefore also the switch 81 is opened and the choke coils are effective. To obtain a higher current the controller is moved to position II, in which all the choke coils are initially short-circuited as before, but the switch 82 is permanently energized to short-circuit the coil 72 so that only the coils 71, 73 are finally effective when the switch 81 re-opens. Also, in this position of the controller, the coil 93 is not energized so that the switch 9 opens at a correspondingly higher value of the current. In position III of the controller 20 all the choke coils are initially short-circuited as before, but switches 82, 83, are permanently energized so that only the choke coil 71 is finally effective, and as only the winding 91 of the switch 9 is energized the switch opens at a correspondingly higher current value.
Patent GB-942000-A (GB)
Title: Improvements in or relating to constructional panels, slabs or the like
IPC: E04C2/22
Filed: 1959-02-11
Abstract: 942,000. Strengthening edges. B. JAB. LONSKY. Feb. 11, 1960 [Feb. 11, 1959], No. 4797/59. Heading B5K. [Also in Division E1] In a panel of expanded P.V.C. or polystyrene having a reinforcing strip 3, 18 partly or completely along one or more of its edges, the strip is of U, T, Y, H, or of plane section and may have apertures 12 through which pass wires 11 secured to a second panel or to a support structure. The strip is of metal or fibrous plastic partly or wholly surrounding the panel and may be attached by adhesive. As in Fig. 5, panels have plane strips 18, 19, are rabetted, and are secured to a support structure by purlin hooks 20. In an embodiment (Fig. 4, not shown) the strips are attached by punching spikes out of each strip down into the panel.
Patent GB-1067613-A (GB)
Title: Improvements relating to stabilizing frames for excavators
Inventor: BAMFORD JOSEPH CYRIL
IPC: E02F3/36
Filed: 1963-11-18
Abstract: 1,067,613. Preventing overturning. J. C. BAMFORDS (EXCAVATORS) Ltd. Feb. 4, 1965 [Nov. 18, 1963], No. 4820/65. Heading B7D. [Also in Division E1] Within each of the vertical, telescopic stabilizer legs forming opposed sides of a rectangular frame for carrying an excavator assembly and for mounting on transversely of the rear of a tractor is an hydraulically actuated piston cylinder unit that is pivotally connected to the upper and lower portions of the leg, the upper pivotal connection being such as to allow of a, controlled amount of universal rocking movement between the unit and said portion. The connection comprises a pin projecting axially from the top of the unit to extend through a clearance hole formed in the plate closing the top end of the upper portion of the leg and having a retaining member associated with the free end of the pin for retaining the pin in the hole.
Patent GB-875758-A (GB)
Title: Process for obtaining crystalline polyolefins with a high affinity for dyes
IPC: C08F255/02
Filed: 1958-02-14
Abstract: A graft polymer having a high affinity for dyes is prepared by intimately mixing a high molecular weight crystalline polymer of propylene with from 1%-25% by weight of at least one monomer which will undergo free-radical polymerization and heating to a temperature above the melting point of the propylene polymer whereby the monomer polymerizes and is grafted on to the macromolecules of the propylene polymer.  The monomer may be styrene, divinyl benzene, o-nitrostyrene, or an ester, halide or amide of maleic, fumaric or acrylic acid, such as monoisoamyl or diethyl maleate.  The propylene polymer may be peroxidized prior to mixing with the monomer, e.g. by reaction with molecular oxygen at 50 DEG -120 DEG C.  The product may be extruded to form fibres, films or tapes.
Patent GB-566031-A (GB)
Title: Improved arrangements for reducing variations in an electric supply
IPC: G05F1/52
Filed: 1943-03-27
Abstract: 566,031. Automatic control systems for electricity supplies. SCANTLEBURY, G. S. P. March 27,1943, No. 4974. [Class 38 (iv)] Voltage.-An oscillation frequency of a tuned circuit is made dependent on a quantity, such as voltage or current, of an electricity supply system and variations of such frequency with respect to a reference frequency of predetermined value are caused to operate means for regulating the quantity. Fig. 1A shows the saturating winding of a reactor 5a, in the tuning circuit of an oscillator V0, responsive to the voltage at the terminals 2 of a load circuit. The oscillating valve is combined with means whereby the output of a stable oscillator S0 may be caused to produce a beat frequency which is applied to a circuit tuned to the normal beat frequency and comprising a transformer 10. The output of the transformer is applied to resistances 16, 17, the first of which is supplied through a network 15 giving a 180 degrees phase shift. The total voltage across these resistances, which is a measure of the supply voltage deviation, is applied through voltage doubling rectifiers to the grid of an amplifier A which is coupled to the grid of a series impedance valve V1 to correct any deviation. A filter condenser 28 also serves to apply sudden changes in load voltage directly to the amplifier A. Fig. 2A shows the output of the oscillator V0 coupled to tuned circuits of a discriminating transformer D and through rectifiers and resistances 36, 37 to produce a voltage on resistance 38 which varies through zero as the oscillator frequency passes the frequency to which the transformer is timed. This voltage is applied through two amplifiers 19, 40 to the series tube 1 to effect stabilization. A discriminator network in the form of a crystal filter may be used in this arrangement. The controlled quantity may control a capacity or a reactance valve in the tuning circuit of the variable oscillator.
Patent GB-899355-A (GB)
Title: An improved method of manufacturing articles including a hollow body
IPC: B21C37/15
Filed: 1958-02-17
Abstract: 899,355. Making hollow-ware; force fits. HEATH, I. A., and BRADLEY, W. G. Feb. 17, 1959 [Feb. 17, 1958], No. 5029/58. Classes 83 (2 and 83 (4). [Also in Group XI] A method of manufacturing hollow-ware comprises forming a cup-shaped hollow body having a plan cross-section which varies from one position to another lengthwise of the body by forming by die casting or otherwise, a plurality of structurally separate body sections, each such section being a segment of the wall of the body, assembling the sections in their proper positions to form the body and retaining them in this relation by forcing them within an apertured circumscribing part at one or more positions along the length of the so formed body. In an embodiment the article forms part of a hearth companion set and comprises an elongated cup-shaped hollow body 10 of elliptical cross-section formed from two identical sections 12 each having an integral rib 13 along one of its longitudinal edges for masking the joint between the assembled sections. Arms 17 on each section provide supports for the fire irons. Each section at its lower end is formed with an integral segment of a spigot 21 which has a one degree taper and longitudinal ribs on its outer surface to form a force fit in a base 23 formed with a socket 24. At their upper ends the assembled sections are embraced by a ring part 25 having a force fit similar to that of the base. An inwardly projecting rib 28 on the ring masks the upper edges of the body sections. If the article is to be used as a vase a sheet metal or plastic liquid-tight liner is fitted within the article.
Patent GB-475718-A (GB)
Title: Improvements in or relating to high frequency signalling systems
IPC: H03C1/62
Filed: 1937-02-19
Abstract: 475,718. Multiplex systems. PUNGS, L. Feb. 19, 1937, No. 5033. Convention date, Feb. 21, 1936. [Class 40 (iv)] [Also in Group XL] In systems in which high-frequency carrier waves are subjected to multiple modulation by intermediate frequency carriers which are modulated by the signals, the principle of " floating " carrier such as is described in Specification 363,480, [Group XL], is applied to the intermediate carrier waves.
Patent GB-798196-A (GB)
Title: Improvements in or relating to methods of producing renderings for walls, facades and the like
IPC: C04B28/26
Filed: 1956-02-17
Abstract: A rendering for walls, &c., is produced by applying thereto a paste formed from an aqueous solution of sodium and/or potassium silicates and a dry mix comprising calcium carbonate, e.g., ground marble, at least one barium compound in powder form, and quartz sand.  Preferred proportions by weight are 50-60 parts dry mix and 40-50 parts solution.  As barium compound there may be used barium sulphate and barium oxide or sulphide, and titanium oxide, asbestos fibres, metallic oxide, or chrome pigments may also be added to the dry mix. The aqueous solution may contain glycerin, especially that formed by fat-processing in the manufacture of soap, and caustic soda.
Patent GB-109222-A (GB)
Title: Improvements in and relating to Railway Rail Joints.
Inventor: ZAHURANEC JOHN
IPC: E01B11/08
Filed: 1917-04-12
Abstract: 109,222. Zahuranec, J. April 12, 1917. Rail joints for railway rails comprise a member 16 having a tread portion 29, a part 17 adapted to fit against the rail webs, and a flange 20 engaging over the rail flange. Longitudinal openings 32 are formed in the central portion of the member 16, into which project lugs 28 having conical-shaped recesses for engaging the coneshaped ends 26 of the securing-bolts 23. The bolts are locked in position by the plates 34 engaging underneath the ends of the bolts, these plates being held tightly in position by wedge strips 36 secured by pins 46, 50. Pivoted catches are mounted in recesses in the under surface of the plates 34, which engage serrated portions of the wedge strips. Strengthening-ribs 30 are spaced along the member 16.
Patent GB-1459445-A (GB)
Title: Pressure vessels
IPC: F16J12/00
Filed: 1973-02-01
Abstract: 1459445 Rocket motor casings IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 9 Jan 1974 [1 Feb 1973] 5180/73 Heading F3A A pressure vessel such as a rocket motor casing comprises a tubular body 2, a fitting 4 bonded to the interior surface of an end portion of the body, and a reinforcement 10 overlying the inner end of the fitting, the reinforcement comprising a band of plastics material reinforced with fibre, the tensile modulus of the fibre being about the same as or higher than that of the unreinforced body. The body 2 is composed of strip steel laminate and the reinforcement comprises carbon, boron or steel fibres impregnated with epoxy resin. The fitting 4 is bonded to the casing 2 with resin injected through an aperture 9 into an annular cavity 8.
Patent GB-633310-A (GB)
Title: An improved alloy
IPC: C22C30/02
Filed: 1948-02-23
Abstract: An alloy, particularly suitable for dental purposes and for use in the manufacture of jewellery, has the following composition:-Au 35-92 per cent, Ag 1-25 per cent, Cu 1-45 per cent, Zn 1-15 per cent, Be 0.05-1 per cent.  In making the alloy, beryllium may be added as a beryllium-copper alloy containing 2 per cent of beryllium.  The alloy may be hardened, after quenching from 550-650 DEG C, by heating at 200-500 DEG C for a period of from 5 minutes to 20 hours.
Patent GB-724948-A (GB)
Title: Improvements in or relating to rotary joints or connections for the passage of fluidbetween stationary and rotary members
Inventor: SHAW HARMON LEE
IPC: F16L27/08
Filed: 1953-02-26
Abstract: 724,948. Stuffing-box substitutes. PERFECTING SERVICE CO. Feb. 26, 1953, No. 5378/53. Class 122 (5). [Also in Group XXVIII] In a joint between a stationary housing 21 and a pipe 30 connected, for instance, to a rotary drum, the pipe rotates in a bearing 40, and a sleeve 50 slidably keyed to the pipe is spring pressed towards the bearing so that an end face of the sleeve is in sealing contact with an end face of the bearing. As shown, a key 52 fitted in the sleeve 50 engages a slot 53 in the pipe, spring pressure is provided by a truncated washer 55 held in position by a clip 36, and the bearing comprises a metal sleeve 40a bonded to a sleeve 40b of metal impregnated with graphite- and is fixed to the housing 20 by a ring 66 secured by screws 68. The sleeve 50 may have a groove 60 to receive a rubber ring 61 providing an additional seal and permitting floating action of the sleeve.
Patent GB-469072-A (GB)
Title: Improvements in and relating to apparatus for tempering glass sheets
IPC: C03B35/20
Filed: 1937-02-23
Abstract: 469,072. Tempering glass. AMERICAN SECURIT CO. Feb. 23, 1937, No. 5384. Convention date, Feb. 29, 1936. [Class 56] A glass sheet 12 during tempering is carried by a frame suspended from a travelling carriage and comprising a number of bars 35, having narrow metal strips 42 let into them, and a flange having a wearing surface 41 on which the lower edge of the glass rests, and may be held against accidental displacement by spring clips 44 inserted in holes in the top or bottom of the frame. The frame is pivoted so as to tend to hang vertically and is given an adjustable inclination by set screws 38.
Patent GB-608377-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/46
Filed: 1946-02-21
Abstract: 608,377. Knitting-machines. HEMPHILL CO. Feb. 21, 1946, No. 5448. Convention date, Feb. 27, 1945. [Class 74(ii)] Screws 2, 3 and a fixed abutment 4 secure the sinker cam cap of a circular independent needle knitting-machine against shcgging during reciprocatory knitting; and cams 6, 7 at the auxiliary side of the machine advance the sinkers to receive body and plating yarns 23, 54 over their backs immediately after a centre sinker cam 5, having two sides converging substantially to a point, has retracted them, to transfer loops from their backs to their throats. On either side of the centre sinker cam 11 at the main side, are casting-off cams 12, 13: respectively above and below them are pivoted flopper cams 14, 15, operative alternately during reciprocatory knitting to hold in the sinkers and prevent the fabric being carried up as the needles move up the front or rear stitch cam 16 or 17. Each two cams 12, 14 and 13, 15 are, together, only the thickness of a normal cam. The sinkers associated with a few of the instep needles immediately preceding the last of those needles to knit before the beginning of reciprocatory knitting, have butts too short to engage upper cams 13, 14; and, therefore, during the clockwise stroke, of reciprocatory knitting, when cam 15 is inoperative, these sinkers will not be advanced, so ensuring that they shall not injure the instep yarn. A centre guard cam 40, on the auxiliary side is swingable about a horizontal pivot, to retard the point at which the needles begin to descend in either direction of knitting, e.g., when wrapping. A fixed cam 44, exposed when cam 40 is retracted to inoperative position before the knitting of heel or toe is begun, lowers the needles as cam 5 retracts the sinkers, on the first clockwise stroke, sufficiently to ensure that such sinker loops as were not transferred to the sinker throats by cam 11 on the last stroke of counter-clockwise knitting shall be at throat level when the sinkers advance again. Fig. 12 indicates the deviation from the normal of the path taken by needles receiving wrap yarn 55. Specifications 600,947 and 601,056 are referred to.
Patent GB-588702-A (GB)
Title: Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type
IPC: H01H33/32
Filed: 1945-03-05
Abstract: 588,702. Gas-blast switches. REYROLLE & CO., Ltd., A., and CHRISTIE, J. March 5, 1945, No. 5471. [Class 38 (v)] A gas-blast switch has its pneumaticallyoperated contact B prevented from moving until adequate blast pressure is built up in the casing A. Pressure is communicated by pipe F<4> to an adjustable spring-loaded valve F, which by exposing a greater area to the gas when the piston lifts off its seating F<6>, snaps back, allowing pressure to pass to the contact-actuating piston B' via port F<1> and pipe F<2>. The are thus formed is blown through an arc-resisting, metal nozzle so as to extend between contacts E, D, When the blast is shut off, a spring F' closes valve F, venting port F<1> to atmosphere via port F'. In an arrangement with two breaks exhausting through a common vent, Fig. 2 (not shown), two contact-actuating pistons are controlled by one valve to ensure simultaneous opening.
Patent GB-1388812-A (GB)
Title: Finger printing apparatus
IPC: A61B5/117
Filed: 1973-02-05
Abstract: 1388812 Finger-printing apparatus IDENTICATOR CORP 5 Feb 1973 [7 Feb 1972] 5502/73 Heading B6C A finger-printing apparatus comprises a casing 11 having a supply 37 of magnetizable powder and a magnet movably mounted in the casing to pick-up and brush powder on to the surface of a medium having a finger-print impressed thereon to develop it. The movable magnet comprises a body 43 having magnets 45 rotatably mounted on a shaft 47 which in turn has a pinion rotated by a toothed sector on a lever having a handle 25. The finger-printed medium is inserted in a folder and the folder inserted in a slot 22 past a spring biased cover 39 which normally closes a cavity 35 in which contains the magnetizable powder. A spring loaded hammer 69 cocked and tripped by the lever knocks excess powder from the medium.
Patent GB-883590-A (GB)
Title: Improvements in and relating to television receivers and the like
Inventor: LATUSEK WALTER BERTHOLD
IPC: H04N5/655
Filed: 1958-02-20
Abstract: 883,590. Cathode-ray oscilloscopes. RADIO & ALLIED INDUSTRIES Ltd. May 20, 1959 [Feb. 20, 1958], No. 5540/58. Class 40(7). [Also in Group XL(b)] Some of the components other than the cathode-ray tube in a television receiver are carried by panels 13, 14 pivotally mounted at 17, 18 so that they may be swung outwardly and backwards away from the main body of the receiver to facilitate accessibility to such components during servicing.
Patent GB-1188922-A (GB)
Title: Improvements in or relating to Thermoplastic Elastomers and to Articles made therefrom.
Inventor: LANDAU LUCIAN
IPC: C08L53/02
Filed: 1968-02-02
Abstract: 1,188,922. Block copolymer-other copolymer compositions. PHILLIPS PATENTS Ltd. 20 Jan., 1969 [2 Feb., 1968], No. 5548/68. Heading C3P. Block copolymers particularly poly-(styreneb-butadiene-b-styrene) are compounded with up to 50% of an ethylene-vinyl acetate copolymer and optionally a filler such as whiting. The compositions are used for forming articles by injection moulding.
Patent GB-1236892-A (GB)
Title: Automatic gain control circuit
IPC: H03G3/30
Filed: 1970-02-05
Abstract: 1,236,892. Automatic gain control. NATIONAL CASH REGISTER CO. 5 Feb., 1970 [11 Feb., 1969], No. 5577/70. Heading H4R. Automatic gain control circuit includes a delay circuit 25 in the signal path from an input terminal 23 to the base of an amplifier transistor 8 with negative feedback applied to the amplifier transistor via an emitter impedance the value of which is controlled by the potential applied to the gate electrode of the FET 42, derived from the input signal at the input terminal 23. The gain control circuit includes a rectifier 68 so that only positive peaks pass to charge up capacitor 74 which has a discharge path provided by potentiometer 72. Diode 92 then restores the negative going excursions of the rectified signal to earth potential as they are applied to control the impedance of the FET 42. The circuit may be used for the pulse output from a magnetic sensing head.