baber/WOPTO huggingface dataset:
Patent GB-702186-A (GB)
Title: Manufacture of sulphuric acid
IPC: C01B17/74
Filed: 1952-02-08
Abstract: Sulphuric acid is manufactured by passing gases containing sulphur dioxide and sulphur trioxide into aqueous sulphuric acid, the sulphur trioxide being absorbed whereby the resulting acid reaches a temperature of at least 150 DEG C. and preferably boiling temperature at which latter temperature evaporation of water effects concentration of the acid, and subjecting the gases containing sulphur dioxide remaining after the absorption of the sulphur trioxide to an oxidation treatment to obtain further sulphur trioxide.  The unabsorbed gases may be heated, for example by indirect heat exchange with hot gases derived from roasting pyrites, prior to the oxidation treatment to a temperature of between about 400 DEG C. and about 500 DEG C.  The acid produced may be cooled by air which is then used for the roasting of pyrites. Specification 687,160 is referred to.
Patent GB-112851-A (GB)
Title: Writing Frames for use of the Blind.
Inventor: SKELHORN JOHN
IPC: G09B21/00
Filed: 1917-03-09
Abstract: 112,851. Skelhorn, J. March 9, 1917. Blind persons, t e a c h i n g. - To enable the oncesighted blind to write, the paper is placed underneath a frame with spaces as illustrated. T h e frame is hinged at B, C to the base, and a holder A for a pen or pencil is provided at the top. Reference has been directed by the Comptroller to Specifications 8562/96 and 16922/06.
Patent GB-1035742-A (GB)
Title: Improvements in or relating to gas heated water boilers and heaters
Inventor: LOMAY WILLIAM
IPC: A47J31/54
Filed: 1964-01-28
Abstract: 1,035,742. Water heaters. MAXOL HEATERS Ltd. Jan. 27, 1965 [Jan. 28, 1964], No. 3483/64. Heading F4A. The pan of a water heater or boiler heated by a gas ring has a cover T comprising a number of internal imperforate baffle plates 10, 11 leaving staggered spaces at the sides so that steam is constrained to follow a tortuous path to the outlet 14. The cover comprises a flange 8 fitting on the pan, a concave bottom 9 with a central aperture covered by gauze 13 and baffle plates 16, 11, 10 arranged at right angles to each other. Steam generated in the pan takes a tortuous path around the edges of the baffle plates to the upper aperture which is covered by gauze 15. Water supplied to a reservoir E, Fig. 1 (not shown), passes by pipe e3 to an annulus G and through pipe M to the pan. Boiling water can be run off through a pipe S<SP>1</SP> and hot water through a tap mounted on the casing F.
Patent GB-138639-A (GB)
Title: Method of evacuating the bulbs of electric incandescent lamps and other glass vessels
IPC: H01J9/38
Filed: 1920-02-04
Abstract: 138,639. Deutsche Gasgl³hlicht Akt.- Ges. (Auerges). May 18, 1918, [Convention date]. Addition to 101.621, [Class 8 (i), Air and gases, Compressing &c.]. Forming electric-lamp bulbs and the like.-In a process for exhausting lamps as described in the parent Specification, the ends of the exhaust nipples are fused and removed in a molten condition. The heating-means may consist of an electric resistance k surrounding the nipple, or a cup l containing a flux and heated by a resistance m. The operation is carried on in a bell cheated by a resistance d and surrounded by an outer bell b. The bells rest on a plate a through which an exhaust tube f passes. The resistances k, m may be coils or plates. The bulbs are mounted in a frame o suspended by a rod q passing through a stuffing-box in the bells; the rod q is provided with a locking-pin r which may be removed to raise the bells or to depress the nipples into the heaters. Additional heating-means may be pro. vided within the bell c or frame o. A single bell may be used.
Patent GB-243202-A (GB)
Title: Improvements in tight closing devices for bottles, preserve tins and similar vessels
IPC: B65D51/16
Filed: 1925-02-09
Abstract: 243,202. Draullette, E. Feb. 9, 1925. Packing-rings for stoppers and lids.-Bottles, tins &c. for preserving food products are hermetically closed by a cover having means for positively engaging it with the vessel and a resilient packing ring comprising a base or heel placed without tension either externally around the vessel or unternally with the cover the ring having a horizontal groove formed by two flanges which are pressed against the cover and vessel by difference of pressure within and without the vessel. A cover 2 secured to a vessel 1 by a bayonet joint is formed with inward projections or a horizontal groove 8 for retaining a packing ring 3, the flanges 3<1>, 3<2> of which are pressed against the cover and vessel by atmospheric pressure. The packing ring 3‹, Fig. 7, has its flanges turned inwards to resist internal pressure, the cover 2 being secured by an external bayonet joint 11, 12, and an inner stopper 10 being provided. The bayonet joint may be effected by forming the flanges of the vessel and cover of oval shape and cardboard &c. discs or plates may be used as packing for the ordinary junction devices.
Patent GB-1395152-A (GB)
Title: Altering current dynamo-electric machine windings
IPC: H02K55/04
Filed: 1971-02-01
Abstract: 1395152 AC dynamo-electric machines INTERNATIONAL RESEARCH & DEVELOPMENT CO Ltd 1 May 1972 [1 Feb 1971] 3620/71 Heading H2A In an A.C. dynamo-electric machine, e.g. a superconducting alternator shown in Fig. 2 or an iron-wired machine having an air-gap armature winding, having a stationary A.C. winding carried by a non-magnetic hollow cylindrical support structure coaxial with a rotor, the winding includes two coaxial cylindrical layers of conductors X 1 , X 2 , Y 1 , Y 2 , Fig. 1, or 11, Fig. 2, each of which conductors is composed of one or more helical sections with each conductor of a layer having the same lateral relationship to the other conductors of the winding as every other conductor of that layer and all conductors of each layer being at the same radius from the rotor axis substantially throughout the conductor lengths and, between the ends of the conductors of the two layers, end connections which complete the turns of the winding each of which turns comprises at least one conductor of the first layer connected in series with at least one conductor of the second layer each end connection extending substantially radially between a conductor end of the first layer and an adjacent conductor end of the second layer. Each conductor may form a single helical section as shown, or two equal length sections of opposite sense, and may be finely divided and twisted, directly fluid cooled via a water manifold 20, and overlap the rotor winding by a considerable amount. The support structure of Figs. 3 and 5 comprises an assembly of non-conducting, e.g. densified hardwood rings 25 each having two circles of helically inclined holes 21, 22 through which preformed helical winding conductors are threaded. Alternatively, each such ring may be sequential (Fig. 6), or the structure may comprise three juxtaposed hollow cylinders having winding - receiving helical grooves (Figs. 7 ... 10). In the alternator of Fig. 2 the stator conductors 11 are non-superconducting and the rotor field winding 10 is cooled by liquid helium circulated through a refrigerator 14 via supply and return connections 15, the space within the rotor being evacuated via a vacuum connection 16; a rotor outer part 13 serves as a vacuum casing and an eddy current screen, and a Cu screen 19 surrounds both windings.
Patent GB-554849-A (GB)
Title: Improvements in or relating to illuminating or signalling devices
IPC: H01J61/32
Filed: 1942-03-18
Abstract: 554,849. Electric lamp casings: signs. STEVENS, A. H., (Electronic Laboratories, Inc.). March 18, 1942, No. 3624 [Class 75 (iv)] [Also in Groups XVIII and XL] An illuminating signalling, or advertising device consists of a length or coil 1 of high voltage gaseous tubing embedded in a protective envelope 5 of polystyrene which is moulded about the tubing and forms a substantial portion of the exterior off the device. The envelope may be of streamline form including a bluntnosed portion 6, tapering tail portion 7, and a flange 8 by which it may be attached for example to an aeroplane wing. A heating coil may be moulded within the envelope and the terminals for the tubing may be brought out through the envelope to attachment terminals 4. The polystyrene may be coloured.
Patent GB-759351-A (GB)
Title: Method of, and apparatus for, bending tubes
IPC: B21D7/024
Filed: 1952-02-12
Abstract: 759,351. Angular bending. HUET, A. Feb. 12, 1952 [Feb. 13, 1951], No. 3683/52. Class 83 (4). A method of bending a straight tube consists in winding said tube over a bending roller having a semi-elliptical, semi-'oval or parabolic groove whilst heating that part of the tube that will, after bending, form the internal portion of the bend, so that a heated. semi-circular portion of the tube may spread out during bending to avoid increasing the thickness of the tube wall at the interior of the bend. Apparatus for carrying out the invention comprises the bending roller K, two rollers t for pressing the tube j into the groove of the roller K, a blow lamp O for heating the region A of the tube prior to bending and an arm or yoke K<SP>1</SP> attached to the roller K for gripping the tube. The bending is effected by rotation of the roller K. The semielliptical groove of the roller K allows, during bending, the diameter CC of the tube to increase by expanding into the groove and this prevents increase in thickness of the tube at the inside portion of the bend. The ends of the bend may be tapered to facilitate joining to straight tubes of circular section. Specification 678,002 is referred to.
Patent GB-940979-A (GB)
Title: Improvements relating to jet propulsion nozzles for gas turbine engines
Inventor: TAYLOR MAURICE IAN
IPC: F02K1/12
Filed: 1959-02-03
Abstract: 940,979. Jet propulsion nozzles. ROLLSROYCE Ltd. Feb. 3, 1960 [Feb. 3, 1959], No. 3697/59. Heading F1J. A jet propulsion nozzle having a variable area outlet has means radially spaced therefrom to define a duct for atmospheric air which is mixed with the exhaust gases and means for controlling the outlet area of the duct in accordance with the outlet area of the nozzle. The propulsion nozzle 16 has its outlet area varied according to different engine operating conditions by an annular assembly of flaps 38 which are actuated by screw jacks 24 through links 36. A cylindrical member 19, mounted on the outlet end of the nozzle 16, supports a series of circumferentially spaced apart flaps 18 which are radially spaced from the flaps 38 to define a duct communicating with the atmosphere and the interior of the member 19. The members 38 are actuated by the spindles 28 of the jacks 34 acting through links 30. The cylinders 26 are moved simultaneously by an annular member 32 supported by a roller bearing 34. The flaps 36, 38 are arranged to move simultaneously so that when the nozzle area formed by flaps 18 is at a minimum then the duct outlet area is at a maximum and vice versa.
Patent GB-1045838-A (GB)
Title: 2-substituted thiophen derivatives
Inventor: AUSTIN WILLIAM CHARLES
IPC: C07D333/24
Filed: 1964-01-28
Abstract: The invention comprises compounds of the formula <FORM:1045838/C2/1> where X represents -CH2-CH2-, -CH2-CH2-CH2- or -CH = CH-, Y represents -CH2-CH2- or -CH2-CH2-CH2-and R represents -H or -CH3, the non-toxic acid addition salts thereof, and methods for preparing these compounds.  When X represents -CH2-CH2-or-CH2-CH2-CH2-the thiophen derivatives are prepared by reacting an alkylene diamine, H2N-Y-NH.R, where Y and R are as defined above with either the hydrochloride or an imidate ester of formula <FORM:1045838/C2/2> where n is 2 or 3 and R2 represents an alkyl radical with 1 to 6 carbon atoms or a nitrile of formula <FORM:1045838/C2/3> where n is 2 or 3, in the presence of an organic sulphonic acid or gaseous hydrogen sulphide. When X represents -CH = CH-, an alkylene diamine is reacted with the hydrochloride of 3 - (11 - imino - 31 - (211 - thienyl)allyloxy) -propane sulphonic acid and, when required, isolating the desired free base from the resulting hydrochloride salt which latter compound is prepared by reacting 2-thienyl-acrylamide with 1,3-propane sultone.  3-(21-thienyl)propionitrile is prepared by hydrogenating 3-(21-thienyl)-acrylonitrile which is made by refluxing 2-thiophene - carboxaldehyde with cyanoacetic acid.  Pharmaceutical compositions having anthelmintic activity contain as the active ingredient compounds of the first general formula where X, Y and R are as defined above and non-toxic acid addition salts thereof.  The compositions may be administered as solutions, in admixture with feed or mineral supplements or in the form of tablets, boluses or capsules.ALSO:The invention comprises an adsorbate of compounds of general formula <FORM:1045838/C3/1> where X represents -CH2-CH2-, -CH2-CH2-CH2- or -CH = CH-, Y represents -CH2-CH2- or -CH2-CH2-CH2- and R represents -H or -CH3 and a cation-exchange resin such as the sodium form of a styrene/divinyl benzene copolymer having sulphonate cation-exchange groups.
Patent GB-899388-A (GB)
Title: Method of bleaching polyalkylene ethers
Inventor: MATELL PAUL MAGNUS TORKEL
IPC: C08G65/30
Filed: 1960-02-02
Abstract: Polyalkylene ethers are bleached by treating with a metal borohydride in amount of 0,001 to 5% by weight of the polyether. Preferred borohydrides are alkali metal borohydrides, but those of other metals such as magnesium, calcium, barium and strontium can also be used. The treatment may be effected in a solvent, e.g. water, ethanol, benzene or toluene.  The polyethers specified are of the formula H(OR)nX where R is alkylene, specifically ethylene or propylene, and X is hydroxy or a residue of an organic compound containing a reactive hydrogen atom, e.g. water, amines (such as oleylamine), alcohols (lauryl, oleyl, cetyl, ethyl and tallow fatty alcohols), phenols (nonylphenol) and carboxylic acids (tall oil fatty acids). The values of n exemplified are from 3 to 80.  Any temperature below decomposition temperatures may be used.  Specification 828,208 is referred to.ALSO:Polyalkylene ethers are bleached by treating with a metal borohydride in amount of 0.001% to 5% by weight of the polyether. Preferred borohydrides are alkali metal borohydrides, but those of other metals such as magnesium, calcium, barium and strontium can also be used.  The treatment may be effected in a solvent, e.g. water, ethanol, benzene or toluene.  The polyethers specified are of the formula H(OR)nX where R is alkylene, specifically ethylene or propylene, and X is hydroxy or a residue of an organic compound containing a reactive hydrogen atom, e.g. water, amines (such as oleylamine), alcohols (lauryl, oleyl, cetyl, ethyl and tallow fatty alcohols), phenols (nonylphenol) and carboxylic acids (tall oil fatty acids).  The values of n exemplified are from 3 to 80. Any temperature below decomposition temperatures may be used. Specification 828,208 is referred to.
Patent GB-110290-A (GB)
Title: Improvements in Telescopic Periscopes.
IPC: G02B7/28
Filed: 1917-03-15
Abstract: 110,290. Kelvin, Bottomley, & Baird, Watson & Sons, W., and Conrady, A. E. March 15, 1917. Periscopes.- A focussing-device for a periscope having a telescope system comprises a reversing lens 2 situated below the tele metric scale 3 and axially movable for focussing by means connected to its mount 4 in such a manner as not to interfere with the practically hermetic closure of the main tube 1. In the construction shown, the lens mount 4 is connected by a pin 5, passing through a slot 6 in a fixed tube 7, with a slidable tube 8 to which is connected a rod 9 passing through a stuffing-box 10 in the tube 1. The rod 9 is actuated by means of a rack 11 at its lower end with which meshes a pinion 13 on the same shaft as a worm 15 operated by a hanel-wheel 17.
Patent GB-849505-A (GB)
Title: Improvements in and relating to platinum-base magnet alloys
Inventor: CHASTON JACK CHAMBERS
IPC: C22C5/00
Filed: 1958-02-05
Abstract: A method of heat treating a cobalt-platinum alloy containing 17-27% cobalt, the remainder being platinum and unavoidable impurities comprises heating the alloy to a temperature sufficient to effect disordering within the alloy, quenching the alloy to a temperature between 550 DEG C. and 750 DEG C., maintaining the alloy at the latter temperature for a predetermined time, and finally quenching the alloy in water or cooling it in air.  The quenching at 550-750 DEG C. may be carried out in a salt bath for 5 hours to 1/4 hour, and the disordering temperature may be 850-1000 DEG C. The alloy may also contain up to 1% each of nickel, iron and/or titanium.  The material treated by the invention is stated to be suitable for the production of permanent magnets of high energy and coercive force.
Patent GB-415650-A (GB)
Title: Apparatus for the manufacture of textile fabrics
IPC: D04H11/04
Filed: 1934-02-06
Abstract: 415,650. Pile fabrics; folding fabrics &c. McKAY, R. F., Fort Dunlop, Birmingham. -(International Latex Processes, Ltd. ; 10, Lefebvre Street, St. Peter Port, Guernsey.) Feb. 6, 1934, No. 3836. [Class 142 (iv).] A pile fabric is formed by feeding a fibrous web of yarn, felted or matted material or paper to a folding device and then applying adhesive such as latex, and, if desired, a fabric or paper backing, to one or both sides of the thus formed pile layer, the double coated structure being subsequently cut to form two pile fabrics. In the machine construction shown, yarn from a beam 1, Fig. 4, is fed to a pair of alternately operating folding blades 6, 7, each of which, after forming a fold, holds the web against the supporting plate 8 or 9, Fig. 5, of the other blade while the latter is being withdrawn and also while a vertical movement in the direction of the web is imparted to both blades to move the withdrawn blade to upper position. The folded web then passes through a shoot 93 to a conveyer 95 which carries it beneath an adjustably mounted adhesive applying device 96 and under heating coils 106 which set the adhesive. During its subsequent passage through the machine, the reverse side of the fabric is coated and set by adhesive applying and heating units 109, 110 respectively. Backings 115, 121 may be applied to the web after its passage through each heating unit and the structure so formed is cut to form two pile fabrics by a knife 113, Fig. 7. In a modification, Fig. 13, adhesive is applied to both sides of the folded web simultaneously by spraying units 132 and backings B are similarly applied by rollers 140 prior to the passage of the web through a heating chamber 133. Folding mechanism. The blades 6, 7 are slidably guided on castings 8, 9, Fig. 5, by cap plates such as 48 and are secured at their rear ends to slidably mounted frames 53 provided with bifurcated links such as 68 which are adjustably connected to slotted arms 72 on shafts 73. The shafts 73 have rigidly fixed thereon cam levers such as 75 co-operating with grooved cams such as 79 on shafts 41, 42, rotation of the latter causing the blades to be reciprocated at right angles to the plane of the web. Manually operable means are provided for adjusting the spacing of the supports 8, 9 and for altering the stroke of the blades 6, 7. The vertical movement of the folding blades is produced by connecting the castings 8, 9 to levers 23, 24 which have a pivotal connection with levers 27, 28 on shafts 29, 30 respectively, each of the latter being provided with a lever 34 for engagement with a grooved cam such as 40 on constantly rotating shafts 41, 42. The castings 8, 9 are guided in their vertical movement by tubular extensions 12 which are slidably mounted on posts 14.
Patent GB-310462-A (GB)
Title: Clutch and speed-changing apparatus
IPC: F16H61/02
Filed: 1929-02-05
Abstract: 310,462. Soc. d'Exploitation des Brevets Cotal. April 26, 1928, [Convention date]. Variable-speed gearing comprises two epicyclic spur trains in series, the first controlled by electromagnetic clutches and brakes, the second by dog elements, so as to yield in all six forward and three reversed speeds. The first train connects shaft 1 to an intermediate shaft 16 upon which a divided sun gear 6, 8 with magnetic armatures 4, 9 is loosely mounted. The carrier of planets 14 is secured to shaft 16 by a web 16'. There is a loose encircling gear 7 with magnetic armatures 5, 10. Upon a vehicle, the mechanical clutch is dispensed with and automatic clutching action is obtained by exciting electromagnet 2 carried by engine shaft 1 by current. from a dynamo driven by the engine. The second train connects shaft 16 to a tail shaft 17. The first train yields a solid drive and two reduced speeds. In one reduced speed, the sun 6 drives and the annulus 7 is held. In the other reduced speed the annulus 7 drives and the sun, in this case sun 8, is held. The second train yields a solid drive, one reduced speed, and a reverse. The six forward and three reversed drives are combinations. The carrier 27 of tho planets 19 of the second train slide along with the annulus 20 in order to effect the changes. The solid drive is obtained by locking the shafts 16, 17 together by the teeth of the planets 19 engaging gear teeth 18, 31 on each. The reduced speed is effected by holding the annulus 20 by clutching to a fixed magnetic brakes member 11, the drive passing from the carrier 27 through dogs 29, 24 to shaft 17. The reversed drive is obtained by holding the carrier 27 and taking the drive from the annulus 20, a sun gear 18 formed on shaft 16 being the driving- element in each case. The principal clutch 2, 4 is devised to have a definite air-gap when disengaged. An annular disc 33 is kept apart from magnet 2 by a flange 37, and the armature 4 is kept thrust to the right against a shoulder 36 on that disc by springs 34.
Patent GB-187098-A (GB)
Title: Improvements in circuits and electro-medical apparatus for transforming and utilizing electric currents
IPC: A61N1/40
Filed: 1921-09-07
Abstract: 187,098. General Electric Co., Ltd., Watson & Sons (Electro-Medical), Ltd., Gough, H. B., and Gossling, B. S. Sept. 7, 1921. Electric appliances.-Relates to apparatus for use in diathermy of the type in which the highfrequency oscillations are produced by an oscillating vacuum tube or thermionic valve. According to the invention, energy is supplied at 5,000 volts, 50 cycles from the secondary 2 of a step-up transformer connected to the mains. The connections are made in accordance with the diagram, in which 3 is a choke coil, 6 an earth connection, 7 is a high resistance in the grid circuit intended to damp out higher harmonics, 8 a variable contact on the inductance 10 of the main oscillating circuit, 9 a condenser several times larger than the condenser 11 of the main oscillating circuit, 12 a condenser of large capacity shunted by a high resistance 13, 14 the inductance of the patients' circuit loosely coupled with the inductance 10. Electrodes 17, 18 are applied to the patient, condensers 15, 16 being placed in the circuit to prevent shocks from low-frequency currents. Specifications 1499/07 and 154,535 are referred to.
Patent GB-955041-A (GB)
Title: A muff
Inventor: COOPER SPENCER THOMAS
IPC: A41D13/08
Filed: 1962-02-01
Abstract: 955,041. Protection muffs. FRANK BRYAN Ltd. Feb. 12, 1963 [Feb. 1, 1962], No. 3879/62. Heading A3V. A muff for protecting the hand of a person holding the handle of a carrying device, e.g. a golfing trolley, comprises a tubular sleeve-like portion 1 (Fig. 2) having an outer layer of waterproof material and an inner layer of pile or fur fabric, and having ribbed wollen cuffs 4 at either end. Secured to one of the cuffs is a strap 5 which may be secured, e.g. by studs, around the handle of the carrying device. The user inserts his hand through the open end of the muff to grasp the handle.