baber/WOPTO huggingface dataset:
Patent GB-871076-A (GB)
Title: Improvements in or relating to the desulphurization of gases
IPC: C10K1/20
Filed: 1957-10-16
Abstract: 871,076. Gas purification. OFFICE NATIONAL INDUSTRIEL DE L'AZOTE. Oct. 16, 1957 [Oct. 16, 1958], No. 32389/57. Class 55 (2). In a process for removing sulphur-containing compounds from a gas or vapour, the gas or vapour is contacted with a porous mass primarily consisting of a compound of the formula M 2 O 3 , M<SP>1</SP>O, in which M is a metal capable of forming a sesqui-oxide and M<SP>1</SP> is lead or a metal of the second periodic group, the contact being carried out at a temperature and a time of contact such that substantially all the sulphur-containing compounds are removed. M may be iron, manganese, chromium or cobalt and Ml calcium, barium, strontium, magnesium, zinc or cadmium. The porous mass may be prepared by mixing equimolar quantities of the selected oxides into a pasty mass with water which is then treated with ammonium bicarbonate or carbon dioxide and ammonia, the resulting mass being moulded and heated at between 400‹ and 800 C. Regeneration of used porous mass may be effected by treatment with a gas containing free oxygen at a temperature below the sintering temperature of the mass, possibly with a further treatment, after cooling, with a solution of ammonium bicarbonate and heating at between 400<SP>0</SP> and 800‹ C. In an example a fuel gas containing 240 mg./ cm. of organic sulphur compounds was contacted with a porous mass containing a compound with the formula Fe 2 O 3 , MgO at between 320‹ and 400‹ C. with a contact time of 7 seconds. The treated gas contained less than 1 mg./cm. of organic sulphur compounds.
Patent GB-618305-A (GB)
Title: Improvements in portable bins
IPC: B61J1/10
Filed: 1946-11-01
Abstract: 618,305. Endless conveyers. HOFFSTETTER, G. O. Nov. 1, 1946, No. 32541. Convention date, July 28. [Class 78 (i)] To provide a means for dumping ashes or the like from a railroad wagon at a point where there is no permanent pit or bin, a portable box is placed in a space hollowed out below the track 10, 11 and a portable endless belt or chain conveyer 25 is arranged to remove material therefrom. The box is open at the top and at the end 24 which receives the conveyer and the side walls converge towards the closed end. The side walls have inwardly and outwardly directed flanges 18, 19 and 20, 21, and the box is reinforced by angle section members 23 on the sides and across the open top.
Patent GB-607714-A (GB)
Title: Improvements in or relating to load-handling wheeled vehicles
IPC: B62B3/06
Filed: 1945-12-03
Abstract: 607,714. Flexible shafts; operating clutches. LISTER & CO., Ltd., R. A., and ASHWORTH, P. B. Dec. 3, 1945, No. 32663. [Class 80 (ii)] [Also in Groups XXVIII, XXX and XXXI] A flexible-shaft 21, adapted to be plugged into a power take-off socket 22 of a vehicle - engine, terminates in a conical clutch member 111 fixed into driving engagement with a complementary clutch member 110 in the socket 22 by means of a lever 121, which is loaded by a spring 124 and has a finger 128 engaging in a groove 126 in the flexible-shaft terminal hand-grip or plug 115. The drive can be interrupted by rocking the lever 121 against its spring 124 or by engaging it in a second groove 127 in the hand-grip. A compression spring may replace the tension spring 124 shown, in which case the drive is normally interrupted and the lever rocked to engage the clutch. In either case, the finger 128 can be engaged over a shoulder 125 on the socket to clear the handgrip when it is desired to insert or withdraw it. In a further modification, the plug and socket have a pin and bayonet-slot connection, a helical part of the bayonet-slot causing the clutch to engage and disengage as the plug is turned in the socket.
Patent GB-1359711-A (GB)
Title: Sag rod
IPC: F16B2/20
Filed: 1972-07-06
Abstract: 1359711 Sag rods; releasable fastenings METAL SECTIONS Ltd 6 July 1972 [13 July 1971] 32699/71 Headings E1W and E2B A sag rod 10 for interconnecting roof purlins has at each end a latch 11 projecting transversely to the rod's axis outwardly from an aperture 14 in a hollow portion of the rod, the latch being urged outwardly of the rod by resilient means 12 but prevented from passing through said aperture, the latch also having a slot 19 in its outer end. In use, each end of the rod is inserted into an aperture in a respective purlin and the slot 19 engages over the purlin aperture's edge to interconnect the rod and purlin. The spring 12 may engage a pair of latches projecting through oppositely directed apertures at each end of the rod. The rod 10 may be tubular or of channel section.
Patent GB-432674-A (GB)
Title: Improvements in means for opening packages
IPC: H02P5/68
Filed: 1934-11-13
Abstract: 432,674. Unpacking. BAHLSENS KEKS-FABRIK AKT.-GES., H., 352, Podbielskistrasse, Hanover, Germany. Nov. 13, 1934, No. 32706. Convention date, Nov. 29, 1933. [Class 94 (i)] In the formation of a tearing strip or tab for opening packages, the strip is made by picking out and flattening a portion of the wrapper to make a fold a. The end folds b are made in the usual manner and are secured by a label c.
Patent GB-1273183-A (GB)
Title: Material level detector
Inventor: SHOEMAKER DAVID JOHN
IPC: G01F23/288
Filed: 1969-06-27
Abstract: 1,273,183. Radiation corp. INDUSTRIAL NUCLEONICS CORP. June 27, 1969 [Aug. 13, 1968], No.32725/69. Heading G1A. An arrangement for determining whether a condition of a material, e. g. density at a given level in a container whereby the height of material in the container may be measured, is either between a pair of predetermined limits, comprising a dead band, or on either side of them, comprises means for directing first and second signals indicative of the valve of the condition exceeding the amounts of the limits and a bi-stable element in a logic circuit which is activated to a first state when both signals are greater than the two limiting values, to a second state when the two signals indicate that the received radiation is less than the two limiting values and is maintained in its existing state when the signals indicate the received radiation to be between the two limits. The arrangement is applied to preventing false operation by statistical variation in counter type detector outputs. Indication or control in a level measuring system being effected only when the surface passes below the lower limit during emptying or above the upper limit during filling. The arrangement uses a pair of detectors, pulses from which initiate the production of pulses of predetermined amplitude and duty cycle in a unit 37, Fig. 3 which are applied to a pair of operational amplifier comparators 38, 39 fed at 41, 42 with reference voltages corresponding to the limit levels. The output from each amplifier is applied to both an AND gate 51 and a NOR gate 52 and the outputs from the two gates operate the indicating lamps or control circuit 61 through a flip-flop circuit which is switchable to respond to levels above or below the dead band and may be an integrated chip. Suitable transistor circuits are described including a circuit inhibiting malfunction which responds to transistor currents and may also produce a visual indication of malfunctioning. Level control may be effected by controlling an inlet valve or by opening or closing the container bottom.
Patent GB-660461-A (GB)
Title: Improvements in or relating to thermostatic devices for controlling the flow of liquid fuel to burners
Inventor: SHERLOCK JOHN EDWARD
IPC: G05D23/12
Filed: 1948-12-20
Abstract: 660,461. Valves. BRITISH THERMOSTAT CO., Ltd. Nov. 28, 1949 [Dec. 20, 1948] No. 32872/48. Class 135. [Also in Group XI] A device for controlling the fuel supply to a wick less fuel burner is provided with a float controlled valve to give a constant fuel level in a fuel reservoir and emergency means to shut off the fuel admission to the reservoir in the event of overflow and has a pair of outlets one to serve as a bye-pass and the other, subject to thermostat control, to shut off an additional supply of fuel to the burner. Fuel maintained at a constant level 6a in a reservoir 6 by a float 14 operating through a lever 15, a valve 11, is passed, to maintain the burner in the lighted condition through screw thread grooves formed on the surface of a member 20, and through a tube 2a to the burner. An additional supply of fuel to the burner is effected by means of fluid in a capillary tube 30, operating a bellows 31, whose outer end is formed as a slidable spindle 35, flexing a spring 41 to vary the opening of needle valve 24 through a rod 45 and arm 50, thereby allowing fuel, in addition to the constant fuel supply maintaining the burner in the lighted condition, to pass to the burner through a screw thread passage, formed on a tubular member 22, and thence through tube 2a. The degree of bowing of spring 41 effected by an adjustable knot 52, determines the initial temperature at which valve 24 is operated. In the event of fuel rising above level 6a it overflows through a sleeve 53 into a bucket 54 attached to a lever 56 thereby closing a fuel inlet valve 12. Lever 56 is pivotted on diaphragm 57 forming a partition wall between a fuel inlet chamber 5 and reservoir 6. The rate of fuel flow through the helical passages formed on the members 20, 22 is varied by raising or lowering the members within their sleeves 18, 19 to decrease or increase the length of the passages and hence the resistance to the fuel flowing therethrough. Clips 21, 23 hold members 20, 22 respectively in their adjusted positions. Specification 656,707, [Group XI], is referred to.
Patent GB-803405-A (GB)
Title: Improvements in or relating to the production of corrosion-resistant coatings on aluminium or aluminium-alloys
IPC: C23C22/77
Filed: 1956-10-29
Abstract: In a process for the production of uniformly-coloured and corrosion-resistant coatings on a succession of aluminium or aluminium-alloy articles by treatment with an acidic solution containing fluoride and hexavalent chromium, preferably together with phosphate and/or arsenates, the "active fluoride" present in the solution is measured and maintained constant.  The "active fluoride" content may be determined by measuring the weight-loss suffered by a piece of glass on immersion in the solution for a given time at a definite temperature, or by any other commensurate means, e.g. by measuring the amount of powdered silica dissolved by the solution under chosen conditions of time and temperature.  The example discloses the replenishment with sodium bifluoride of an aqueous solution containing sodium bifluoride, chromic acid and phosphoric acid.  The concentrations of hexavalent chromium and of phosphate and/or arsenate are maintained by conventional means.  Specifications 632,090, 632,097 and 708,937 are referred to.
Patent GB-392963-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J17/04
Filed: 1931-11-27
Abstract: 392,963. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.- (Assignees of Rockwood, G. H. ; 182, N. Arlington Avenue, East Orange, New Jersey, and Lodge, W. B. ; 375, Cabot Street, Newtonville, Massachusetts, both in U.S.A.) Nov. 27, 1931, No. 32920. Convention date, Feb. 11. [Classes 39 (i) and 40 (v).] A gas-filled discharge device particularly for use as a rectifier of radio signals comprises a thermionic cathode 75, Fig. 9, an ionizationproducing electrode 78 at a positive potential to maintain a constant discharge between the electrodes 75, 78 and one or more " collector " electrodes 77 which are common to the input and output circuits. The " collectors " 77 are situated in the luminous positive column of the discharge and are maintained at a positive potential relatively to the cathode to collect negative ions to an extent varied by the signals to be detected. The signals are applied in the cathode-" collector circuit across the terminals 79 and the output circuit is connected in series or shunt to the cathode-" collector " circuit or in the " collector " ionization electrode circuit. As shown, a resistive or reactive load 83 is connected in series with a tuning circuit 85 and a source 82 of biasing potential across the electrodes 75, 77. The input may be from the antenna of a radio transmitter and the load a device for indicating the degree of modulation. - A screen 76 connected to the cathode protects the cathode from bombardment by positive ions and decreases the velocity of the electrons emitted by the cathode. In a device filled with argon at 0À1 mm. or with mercury, cµsium or sodium vapour, an indirectly-heated equi. potential cathode 37, Fig. 5, is surrounded by a helical or mesh screen 76 and by a mesh cylinder 30 forming the ionization electrode and supported on rods 24. The luminous discharge is confined between the screen 76 and the cylinder 30. One or two " collectors " in the form of rods 47 are placed at points of zero or small potential gradient. The cylinder 30 has metal end discs 26, 27 with central insulators 32, 34, a flexible stay 44 secured to an extension of the cathode passing through an aperture in the insulator 32. In modifications, the ionization electrode comprises two parallel. rods connected by a cross-bar at one or both ends and the " collector " is placed between these rods and the cathode or beyond these rods. A mica disc prevents the discharge spreading to the pinch, and the " collector " and ionization electrodes may be duplicated on the opposite side of the cathode for fullwave rectification. Details of voltages &c. and characteristic curves are given.
Patent GB-919053-A (GB)
Title: Tetxile articles of cellulose acetate and their production
IPC: F16D27/02
Filed: 1960-09-26
Abstract: Filaments and fibres of cellulose acetate having a combined acetic acid content of 45-62,5%, insoluble in acetone, having a transverse section similar to that of regenerated cellulose filaments of the polynosic type from which they are made, and of oriented fibrillar micro-structure, are made by acetylating regenerated cellulose filaments or fibres of polynosic type in an acetylating bath containing acetic anhydride and an inert organic liquid diluent which is a non-solvent for cellulose acetate and of potential miscibility with acetic anhydride, at a temperature at which the anhydride and diluent are completely miscible, using as catalyst an alkali metal acetate in amount such that at the end of the acetylation the bath contains at most 2% by weight of free acetic acid.  A "potentially miscible" diluent is immiscible with acetic anhydride at room temperature but miscible at higher temperatures.  The diluent may be decahydronaphthalene, white spirit, carbon disulphide or cyclohexane. The weight ratio acetylation bath: cellulose is preferably at least 10:1 and the weight ratio diluent: acetic anhydride between 2:3 and 3:2.  After acetylation the bath is cooled whereupon it separates into two layers, and the diluent layer can be stripped of the small proportion of acetic anhydride it contains by distillation, fortified with additional acetic anhydride and used again.
Patent GB-1025407-A (GB)
Title: Improvements in or relating to laser harmonic generators
Inventor: WRIGHT JAMES KENNETH
IPC: H01S3/109
Filed: 1963-08-21
Abstract: 1,025,407. Lasers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 13, 1964 [Aug. 21, 1963], No. 33074/63. Heading H3B. In a laser harmonic generator a laser element 3 and a crystal 4 having non-linear dielectric properties are situated inside a resonant optical cavity tuned to the fundamental frequency of the output of the laser element. The crystal 4 of ammonium dihydrogen phosphate, potassium dihydrogen phosphate, quartz, calcite, or cadmium sulphide is cut and placed so that its optic axis is at a critical angle relative to the path of the radiation from the optically pumped neodymium doped calcium tungstate rod 3. Since the crystal is birefringent the radiation from element 3 at the fundamental frequency travels through the crystal 4 as an ordinary ray and gives rise to a harmonic which travels through the crystal 4 as an extraordinary ray, both rays travelling with the same phase velocity along the direction of propagation. The harmonic output is a coherent beam obtained from plane reflector 2. If the reflectors also reflect the radiation at the harmonic frequency the latter may be enhanced.
Patent GB-972116-A (GB)
Title: Improvements in or relating to seals
IPC: F16J15/16
Filed: 1963-08-21
Abstract: 972,116. Seals. E. I. DU PONT DE NEMOURS & CO. Aug. 21, 1963 [Aug. 27, 1962], No. 33131/63. Heading F2B. [Also in Division D1] A method of providing a seal between two chambers between which. a continuous web is passed, comprises running the web between a pair of closely spaced members located between the chambers, at least one of said members being porous, and forcing a gas through said porous member towards the web under sufficient pressure to prevent physical contact of the web and the porous member. Fig. 1 shows a web 11 travelling from a chamber 12 to a chamber 13 maintained at different ambient conditions. A partition 14 separates the chambers and attached thereto are elements comprising porous plates 15, 16 with respective plenum chambers 19, 20 and positioned to provide a narrow slot for the web. A gas is fed through supply tubes 17, 18 and passes through the porous plates and escapes along the faces thereof. In a second embodiment the porous members are concentrically curved and one may be of cylindrical form and can be a roller. Provision may be made to adjust the width of the slot and one of the elements may be flexibly mounted or incorporate flexible means so that it can move to permit passage of splices or to permit threading a new web.
Patent GB-491414-A (GB)
Title: Improvements in and relating to windshield clearing systems
IPC: B60S1/48
Filed: 1937-11-30
Abstract: 491,414. Windscreen-cleaners. TRIGGS, W. W. (Trico Products Corporation) Nov. 30, 1937, No. 33136. [Class 138 (i)] Relates to windscreen-cleaner systems wherein a cleansing liquid is sprayed upon the screen in the path of the wiper, and consists in means for automatically rendering the spray operative at predetermined intervals. As shown, a wiper 3 is operated by a suction motor 5 and liquid. is delivered to a nozzle 14 from a tank 16 by way of a pipe 15. A double piston 19, 23 arranged in a cylinder 18 within the tank 16 is moved through its discharge stroke by a spring 22 and through its suction stroke by means of a connection 25 to one side of the suction motor 5. The connection 25 is controlled by a valve 29 the stem 31 of which is threaded in a sleeve valve 13 which controls the main suction pipe 12 of the motor 5, so that the valves 13 and 29 can be operated simultaneously or independently. In a modification, the piston receives its suction stroke from a cam mounted on the wiper spindle.
Patent GB-331515-A (GB)
Abstract: 331,515. Automatic Telephone Manufacturing Co., Ltd., and Simpson, L. M. March 28, 1929. Divided on 331,500. Drawings to Specification, Totalizators.-In an electric totalizator the signals from the transmitting stations are collected by means of rotating switches individual to the various stations and directing the signals to the requisite adding-devices. The description is wholly contained in Specification 331,500.
Patent GB-988892-A (GB)
Title: Time division, multiplex pulse code modulation system
IPC: H04L25/14
Filed: 1962-08-29
Abstract: 988,892. Pulse-code modulation. KABUSHIKI KAISHA HITACHI SEISAKUSKO. Aug. 29, 1962 [Sept. 6, 1961], No. 33201/62. Heading H4L. A time division multiplex pulse code modulation system is chracterized in that a plurality of transmission lines are used so that pulse code signals of a frequency higher than the available frequency of any one transmission line may be transmitted by distributing the pulse code signals to the plurality of transmission lines. Signals on K input channels are fed into a sampling and multiplexing circuits S whose output is coded by circuit C in known manner. The pulse recurrence frequency fk of the multiplex P.C.M. pulses obtained from circuit C is higher than the available frequency fe of one transmission line, so a distributing circuit H is provided with n transmission lines such that fk/n<fe. Circuit H includes gating circuits G 1  - G n , which are opened and closed in turn at a frequency fk/n by a sequence of pulses from a control pulse generator PG 1 , and stretching circuits E 1  - E n  for increasing the pulse width prior to transmission. In this way the first signal bit in each of the K time slots from circuit C, Fig. 3 (not shown) is fed in succession to the first transmission line L 1  while the second bits go to L 2  &c. The receiving station is provided with gating circuits g 1  - g n  controlled by pulse generator PG 2  for recovering the pulses in the form in which they left coding circuit C and a decording circuit D for regaining the original signals of the K channels. An alternative method of distribution is described, Fig. 4 (not shown); in which the gates G 1  - Gn are arranged to open and close so that all the bits in each of the n slots are fed via a memory to a respective transmission line, the memories being read out by control pulses at a frequency fk/n for transmission.
Patent GB-1311256-A (GB)
Title: Terpolymers of ethylene vinyl chloride and a substituted acrylamide and their use
IPC: C09D127/06
Filed: 1971-07-15
Abstract: 1311256 Treating non-woven fabrics MONSANTO CO 15 July 1971 [16 July 1970 20 July 1970] 33343/71 Headings D1R and D2B [Also in Division C3] A binder for porous non-woven materials is a terpolymer of ethylene, vinyl chloride and N-methylol methacrylamide (see Division C3). In an example a cellulosic/nylon fibre composite is immersed in an aqueous dispersion of such a copolymer, dried and calendered. Fibres which may be used include wood, jute, sisal, hemp, cotton, cotton linters, silk, mohair, cashmere, asbestos, wool, glass, cellulose acetate, polyvinyl chloride, polyvinyl acetate, acrylonitrile polymers and copolymers, polyethylene, polypropylene, polyethylene glycol terephthalate and nylon. Oriented webs are produced on web-style machines. Random webs are produced in air-lay machines using a travelling or stationary flat screen or a shaped screen, e.g. a hot shaped cone and suction may be applied from below. Random webs may also be produced by the spray method from a solution or molten mass of the fibre material. Wet random webs may be formed from slurries on a papermaking machine. Randomly oriented continuous filament fibres may be bonded at cross-over points. The terpolymer is dispersed throughout the fibres before or after their consolidation into material and the material may then be passed between pressure rolls. A sulphur cross-linking agent may be added to the terpolymer dispersion in which case the material is heated after drying sufficiently to cross-link the terpolymer. The terpolymer dispersion may also optionally contain sodium oleate as a foaming agent or octyl alcohol or a silicone as anti-foaming agent. There may also be present a pigment and another binder, e.g. starches, ethylene oxide, modified starches, casein, alpha-protein, styrene-butadiene copolymer, acrylic polymers or polyvinyl acetate.
Patent GB-1584965-A (GB)
Title: Toy construction kits
IPC: A63H17/00
Filed: 1977-08-10
Abstract: The kit can be assembled to form models, in particular vehicle models. For instance, the driver's cab of a lorry can be formed from correspondingly shaped components. The side walls of the model are formed by rectangular panels (2a, 2b, 2c) having on their inner surfaces undercut connecting studs (5). In the region of their edge portion, the side parts (1a, 1b) are provided with corner flanges (3) which protrude at right angles and from the end edges of which there extend undercut recesses (4), into which the connecting studs (5) of the panels (2a, 2b, 2c) engage. Since the corner flanges (3) are set back by the thickness of the panels (2a, 2b, 2c) from the outer edge of the side parts (1a, 1b), a flush termination of the outer edges, the side parts and panels is produced. <IMAGE>