baber/WOPTO huggingface dataset:
Patent GB-1139085-A (GB)
Title: Process for direct reduction of iron-bearing materials
IPC: C21B13/14
Filed: 1966-03-22
Abstract: 1,139,085. Reduction of iron-bearing materials. R-N. CORP. 22 March, 1966 [22 March, 1965], No. 12600/66. Heading C1A. Iron-containing material, which contains iron in the ferric and/or ferrous silicate and which is of the type which fuses together at a temperature below that at which the iron in the material dissociates from the other elements therein, is treated by heating the material to a temperature slightly below its fusion temperature, converting any ferrous iron components into magnetite by subjecting the material to a mildly oxidizing atmosphere while heating, converting any ferric iron components into magnetite by subjecting the material to a reduction while heating, and thereafter adding a solid carbonaceous reductant to reduce the iron values to the metallic state and reducing at a temperature slightly below the fusion temperature, and thereupon concentrating the reduced material by grinding and magnetic separation, for recovery of metallic iron. Iron silicate ores can be reduced in this way. The iron-containing material is initially roasted in an oxidizing atmosphere such as air for at least one hour at 1800‹ F. to convert the iron to magnetite. Carbonaceous reducing agent in the range 0À1 to 4% by weight is then added and the roasting is continued in a mildly reducing atmosphere for at least one additional hour. The sulphur and/or arsenic content of iron ore may be reduced by roasting the ore in admixture with 2 to 4 % by weight of a solid carbonaceous reductant at 1800‹ F. for 1 to 8 hours to convert the iron to magnetite. Titaniferous and manganiferous iron ore may be similarly treated. The reduction is effected in a rotary kiln traversed by a counterflow of hot combustible gases controllably burned by introduction of free oxygen-containing gas introduced at spaced points along the kilns. The reduction is effected at a temperature of from 1900‹ to 2000‹ F.
Patent GB-1040579-A (GB)
Title: Method of producing a heat exchange element from pipe, and elements produced thereby
IPC: B21D11/07
Filed: 1964-03-26
Abstract: 1,040,579. Making heat exchange elements. ELECTROLUX Ltd. March 26, 1964 rMarch 29, 1963], No. 12799/64. Headings B3A and B3E. [Also in Division F4] A method of making a heat exchange element from pipe e.g. for use as an evaporator 15 or an absorber in a refrigerating machine comprises initially deforming the pipe profile in the regions to be bent so that the resistance to bending is reduced and subsequently cold bending the pipe into a coil. The pipe is deformed into the shape of a figure 8 with the longest axis of symmetry perpendicular to the plane of the required bend. The same or separate tools may be used to effect the deformation and bending of the pipe. A metal plate 18 is attached to the evaporator coil 15 which is adapted to hold ice trays &c.
Patent GB-1519757-A (GB)
Title: Heat-exchangers
IPC: F28F9/013
Filed: 1977-03-28
Abstract: 1519757 Heat exchanger tube supports LINDE AG 28 March 1977 [31 March 1976] 12856/77 Heading F4S Support means for tubes 8 (shown as layers of tubes wound helically around a tubular core 7) comprises clamping elements 1 shaped as in Fig. 1 whereby when stacked one above the other as in Fig. 2, adjacent elements by their formations 5, 6 interfit, permitting relative movement only in the direction of the longitudinal axis of the members 1. In use, the stacks of elements 1 are angularly spaced around the core member 7 to which the innermost element of each stack is welded. Retaining bars may be inserted in the outermost formations 5.
Patent GB-498589-A (GB)
Title: Improvements in vibration apparatus
IPC: D21F1/18
Filed: 1937-05-05
Abstract: 498,589. Jigging-conveyers. AKTIEBOLAGET A. EKSTROMS MASKINAFFAR, and JONSSON, N. W. May 5,1937, No. 12887. [Class 78 (i)] [Also in Groups II, I, and XXXII] Relates to the suspension of vibratory apparatus comprising a trough over which material in its treatment is conveyed with or without screening, and is described as applied to apparatus for sizing, dehydrating or washing fibrous material, particularly in the production of wood pulp, paper, paper board, fibrous boards, &c. The trough 11, Fig. 2, is actuated with an elliptical movement in a vertical plane by an unbalanced rotary shaft, and is partly immersed in a tank 10. The pulp is fed from a tank 13 through an adjustable gate 15 and spout 14. Screened material passes through the trough and is discharged through the channel 63, while the material not able to pass through the trough is led away by the channel 64. One form of suspension is shown in Fig. 4, in which the trough 11 is suspended by links 46 from blocks 38 each of which is mounted between the adjacent ends of two coaxial springs 41, 42, the outer ends resting on adjustable fixed supports 34, 36. The springs have rubber seatings 35, 37, 39, 40 and the whole is enclosed in a tubular casing 22 adjustably secured to the frame work. Movement is limited by extrusions on the block 38 passing with clearance through tubular side members carried by the casing 22 and lined with rubber. Instead of coiled springs, solid or tubular rubber members may be used. In the arrangement shown in Fig. 7, the suspension consists of two springs 73, 74 bearing at their inner 'ends on a supporting member 66 which is pivotally mounted in the fixed frame 17. The outer end of the spring 73 supports a member 72 which is connected by a rod 71 to a sleeve 75 in which the trough 11 is pivotally mounted and on which the outer end of the spring 74 bears. The tension of the springs is adjusted by nuts 69, 70, and rubber sleeves 77, 78 act to limit the extent of the vibratory movement. Fig. 9 shows another arrangement, in which the sleeve member 81, pivotally supporting the trough 11, is connected to a fixed hook 86 by a tension spring 89. A compression spring 83 surrounding the tension spring lies between the member 81 and a member 82 which is pivoted at 85 to a fixed part 84. The springs are surrounded by a sleeve 93.
Patent GB-1513118-A (GB)
Title: Cleaning of flue gases
IPC: B01D53/34
Filed: 1977-03-28
Abstract: 1513118 Scrubbing power station flue gases SAARBERGWERKE AG 28 March 1977 [27 March 1976 8 March 1977] 12901/77 Heading B1R In a power station, condenser cooling water in circuit 8, 9 is used to scrub flue gases from boiler 1 in cooling tower 10. The flue gases discharged from the combustion chamber of boiler 1 through line 16 are precooled in heat exchangers 17 and 18 and then introduced into the lower part of cooling tower 10 through line 19. The cooling water is purified at decompressing unit 20, for example by oxidizing dissolved SO 2  to sulphuric acid, which is removed as calcium sulphate by the addition of calcium ions.
Patent GB-592158-A (GB)
Title: Improvements in propulsion means for marine craft
IPC: B63H1/30
Filed: 1945-11-23
Abstract: 592,158. Propelling ships &c. MORGAN, L. L. Nov. 23, 1945, No. 12951. [Class 114] In propelling marine craft by propulsive effort obtained by direct thrust against the water by means of a propeller consisting of two hinged vanes 16, housed in a cylindrical thrust tube, 10, and adapted to fold together during the forward stroke and open out during the rearward stroke the thrust tube is formed as a closed casing of streamline shape; extended forwardly to house the actuating mechanism and having large apertures 20 in its tapering rear portion 28 to permit entry of the water on which the vanes act. The flaps are mounted on a rod 12 reciprocated directly by the piston 34 of a double acting power cylinder 36.
Patent GB-480413-A (GB)
Title: Improvements in and relating to the frictional treatment of floors
IPC: A47L13/12
Filed: 1937-05-06
Abstract: 480,413. Brushes &c. HARTMANN, H. May 6. 1937. No. 12996. Convention date, May 6, 1936. [Class 19] Relates to floor-cleaning appliances of the kind wherein a handle b pivotally carries a base plate having a polishing-pad i. at one side and a scrubbing brush f at the other; and consists in the provision of side bristles l on the brush. The pad of plush is secured by a leather strap k, and is backed by felt or sea grass.
Patent GB-807983-A (GB)
Title: Breathing apparatus
IPC: A62B7/14
Filed: 1957-04-24
Abstract: 807,983. Respiratory appliances. SWEARINGEN, J. J., and McFADDEN, E. B. April 24, 1957, No. 13057/57. Class 81 (2). An oxygen mask for use in an aircraft is mounted in a container from which it is automatically presented to a passenger on a sudden fall in ambient pressure. A base plate 2 carries a band spring 6, fixed on the base plate by means of a mounting block and which has the mask 20 attached to a tab 6a at its free end. This spring is normally held by a pivoted trigger 10 which is released by withdrawal of a pin 12 by a lever 14 actuated by an aneroid 13. When the aneroid expands on decrease in ambient pressure the pin 12 is withdrawn and a spring 11 throws the trigger 10 round to lift a stop 7, on the spring 6, clear of a pin 8 and allow the spring to fly outwards, carrying the mask with it. The mask is of flexible, rubberized fabric, so as to conform to the features, and carries an adhesive strip around its periphery, so that it can be held on to the face. A protective strip, covering the adhesive during storage, is gripped by a clip 17 so as to be stripped off when the mask is extended towards the passenger.
Patent GB-114614-A (GB)
Title: Improvements in Sponge Articles, and Process and Apparatus for Manufacturing the same.
Inventor: HAYDEN HENRY ARTHUR
IPC: A47L13/16
Filed: 1917-09-12
Abstract: 114,614. Hayden, H. A. April 4, 1917, [Convention date]. Sponges. - Flat sponges are built up from sponge fragments which have been pressed and stitched together by lines of stitching, each line of which lies preferably in one plane and the lines spaced apart in a regular pattern. Fig. 1 shows a finished sponge. The fragments are passed between a series of corrugated rollers 15, Fig. 5, arranged at intervals above and below shoots 17-17<c>, the axes of adjacent pairs being inclined in opposite directions to the length of the shoot. These rollers serve to crush shells, the fragments of which, together with sand, are removed by means of an air blast delivered from a blower 31, Fig. 8, into a net-covered rotary tumbling drum 22 into which the sponge. fragments are fed through a door 27. The fragments are again pressed bv being passed between rollers 32, Fig. 9, from which the flattened fragments are delivered to a portable container or die 40. When the die is full, pressure is applied by a screw 46 and cover-plate 48. Hooks 43 are then rotated over the cover-plate to hold it in position, the die is removed from the press, and the fragments may be left under pressure. The change may be removed from the die by passing a. suitable tool through the hole 40‹ and may then be submitted to the stitching operation. A stack of unstitched sponge members ma.y be kept under pressure in a die similar to 40 but of greater depth, plates being arranged between adjacent members.
Patent GB-700665-A (GB)
Title: Improvements in battery separator
IPC: H01M50/491
Filed: 1952-05-23
Abstract: 700,665. Paper-board for battery-separators. UNITED STATES RUBBER CO. May 23, 1952 [Aug. 4, 1951 ; Aug. 4, 1951], No. 13089/52. Class 96 A cellulosic fibrous sheet 1 for batteryseparators is made from cotton linters or wood pulp &c. with an alpha-cellulose content of at least 90 per cent. and a Gurley air-permeability of 1 to 10 secs. and impregnated with a solution of an A-stage phenol-formaldehyde resin containing a wetting agent, e.g. sodium dodecyl sulphate, sodium oleyl sulphate, a dioctyl ester of sodium sulphosuccinic acid, or a sodium salt of sulphated 2-ethyl hexanol, dried, embossed with ribs 2 and cured to form the C-stage resin, more wetting agent being then applied and allowed to soak in, the sheet being then cut to the required size. The weight of wetting agent may be ¢ to 1¢ per cent. of the resin at the first application, and 1 to 2 per cent. at the second. Specification 700,666 is referred to.
Patent GB-1299534-A (GB)
Title: Improvements relating to anti-lock brake systems for wheeled vehicles
Inventor: SKOYLES DEREK ROBERT
IPC: B60T8/34
Filed: 1970-03-18
Abstract: 1299534 Anti-lock brake systems MULLARD Ltd 19 April 1971 [18 March 1970] 13146/70 Heading F2F A fluid pressure operated anti-lock brake system for use in a vehicle comprises a wheel movement sensor 6, a control valve 5 which is arranged for actuation consequent upon sensing of wheel lock by the sensor 6 to cause braking pressure to be relieved and a fail safe arrangement 1 in communication with a fluid pressure line which is connected to the control valve 5 and through which arrangement fluid is displaced when the control valve is actuated. The fail safe arrangement comprises a fluid cut-off means P 2  and a biasing means S 1 , P 1  for mechanically biasing the cut-off means P 2  towards a first position (as shown in Fig. 3) at which it can be entrained by sustained flow of displaced fluid in the fluid pressure line, as when the control valve 5 remains permanently open, for displacement to a second position at which it forms a seal preventing further flow of displaced fluid. In the construction shown the biasing means S 1 , P 1  consists of a spring loaded piston P 1  mounted in a chamber C 1  acting on the fluid cut-off means which is in the form of a spring loaded piston P 2  through a stem. The piston P 2  is mounted in a chamber C 2  and the two chambers are connected by a valve V 1  allowing fluid to flow from chamber C 2  to chamber C 1 . During normal braking the piston P 1  is urged against its spring loading by the braking pressure so as to allow the piston P 2  to move away from its first position (Fig. 2, not shown).
Patent GB-929248-A (GB)
Title: Improvements in taps or faucets
Inventor: SMITH JOSEPH EDWARD
IPC: B67D3/04
Filed: 1961-04-12
Abstract: 929,248. Tapping casks &c. W. H. HEATH Ltd. April 3, 1962 [April 12, 1961], No. 13148/61. Class 21. [Also in Group XXIX] A tap or faucet for use with barrels comprises a rotary cylindrical plug member 10 whose seating surface is formed by a polythene sleeve 16 retained on the plug by a plurality of lengthwise extending ribs on the plug. A sealing ring 20 is provided on the plug, which plug is retained in the housing by a nut 21. The nut may be threaded externally to engage the housing.
Patent GB-126219-A (GB)
Title: A New or Improved Socket or Device for Receiving or Bearing Screws, such as are Employed for Fastening Purposes.
Inventor: GORDON JOHN CHARLES
IPC: F16B13/14
Filed: 1918-08-14
Abstract: 126,219. Gordon, J. C. Aug. 14, 1918. Screw sockets.-A screw socket formed of helically coiled wire is provided with projections c which form part of the length of wire for positioning the socket in an aperture in a wall, &c., cement, lead, or the like being poured round the socket, when the screw is in position, to retain it in place. The lengths of wire forming the sides of each projection are in contact. The projections may be made of hook-like form by bending their ends parallel to the axis of the socket. The screw may be dipped in oil or whitening and water to prevent the cement or lead, respectively, from adhering to it. The ends of the wire may be bent round the nearest projection.
Patent GB-839365-A (GB)
Title: Improvements in and relating to apparatus comprising electron-optical image converter tubes
IPC: H01J31/50
Filed: 1956-04-30
Abstract: 839,365. Image converter tubes. LUNN, G. H., and CHIPPENDALE, R. A. April 30, 1956, No. 13185/56. Class 39(1). An apparatus comprises an electron-optical image converter tube and has means for permitting electron emission from the cathode into the evacuated space of the tube only from separated cathode parts, the parts being so arranged that a deflection of the electrons produced from the cathode to provide lifting of the corresponding image produced on the anode face, an interlaced image may be obtained on the anode face. The cathode face 3, Fig. 1, is provided with an apertured mask 7 of aluminium, gold, or copper, over which is a continuous coating 8 of photo-emissive material. The mark 7 has apertures 11, Fig. 2, for the passage of incident light each aperture being a square with sides one-thousandth of an inch and separated from the adjacent squares in the two rectangular directions by nine thousandths of an inch. The anode 4 is provided with a phosphor coating 5 and a conducting layer 6. The electron beam is focussed by coils 13 and deflected by coils 14. As shown in Fig. 1, the tube is utilised for taking photographs of the operation of a flash-bulb 12. A synchronising circuit S triggers the generator IVG to ignite the bulb 12, deflection generator DG and tube voltage generator TVG. The deflection coils 14 deflect the beam to move the images formed by the mark on the lines 19, Fig. 2, to provide the required interlacing, the tube voltage being cut-off by the generator TVG before overlap occurs. The changing images are continuously recorded on a camera plate 18 and the plate, recording about fifty images is processed to individual images by using an apertured mask similar to mask 7. Specifications 709,192 and 735,944 are referred to.
Patent GB-455198-A (GB)
Title: Improvements in or relating to steam superheaters for boilers of the locomotive type
IPC: F22G7/10
Filed: 1936-05-11
Abstract: 455,198. Steam superheaters. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Assignees of Blome, A. B.; 6, Hansastrasse, Kassel, Germany) May 11, 1936, No. 13264. Convention date, May 9, 1935. [Class 123 (iii)] The tube elements 25 of a superheater arranged in a water-cooled combustion chamber beyond the firebox of a locomotive boiler are so formed that they line the walls of the chamber. The header 30 is placed behind a transverse wall 34 beneath the fire arch 23. Each element may extend over the top and side walls of the chamber and open into steam compartments 32, 33 formed by a transverse wall 31 in the header, or each element may extend along a side wall and half way across the top of the chamber and open into compartments formed by a longitudinal partition in the header. The elements are held by clamps secured by screwed bolts engaging in the ends of the boiler stays 27. The middle part of each element may be bifurcated.
Patent GB-133415-A (GB)
IPC: F16N39/04
Abstract: 133,415. Helmes, M. J. Oct. 4, 1918. Recovering wsate lubricants.-Used lubricating-oils are clarified by heating and, agitating a mixture with water in a number of reclaiming- vessels A, any or all of which can be put into action at one time. The preferred apparatus comprises: (1) a compressed-air plant D consisting of a motor D<3>, a pump D<2>, and a reiservoir D' with a delivery pipe D<4> having branches connected through valves F to the impure-oil containers A<1> within the jaekating-veasels A; (2) a hot-water circulating system C consisting of gasheated boilers C' and a tank C<2> with delivery and return pipes C<3>, C<4> to and from the jackets A; (3) two or more pairs of reclaiming-vessels each consisting of an impure-oil container A<1> with a pipe connexion B<1> to a clarified-oil reservoir B, and of a jacketing-vessel A having a valved connexion E to its container A' and a drain H and a water overflow pipe L to the drain H. In practice, the oil in one pair of containers A<1> is heater by circulation of water in the jacket A, and water and air are admitted by opening the valves E, F; after treatment has proceeded for a suitable time, the air and water are cut off, the liquid allowed to settle, and the oil layer forced through the pipe B<1> by admission of more water through the valve E. The impurities are run off through the drain H by opening valve J. The compressed-air and hot-water circulating systems are used continuously by treating oil in other pairs of containers when not required for any particular pair. The complete self-contained apparatus described may be built on a motor or trailer so as to be readily portable. The water-circulating system or the compressed-air apparatus described may be dispensed with in places where such apparatus is already available. Injected steam may be used to effect both heating and agitation; or the agitation may be by beaters and the beating by any convenient means, and a suitable coagulant or clarifier may be added to the liquid in the containers A<1>.
Patent GB-398953-A (GB)
Title: Improvements in or relating to heavy-current electric circuit-breakers
IPC: H01H1/54
Filed: 1932-05-09
Abstract: 398,953. Heavy-current switches. SWINNEY, J., 7, Aldermary Road, West Didsbury, Lancashire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. May 9, 1932, No. 13344. [Class 38 (v).] Contacts.-In a circuit-breaker for heavy currents, of the kind in which two stationary contact members 1, la are adapted to be connected by a movable bridging member 4, at least one of the movable contact surfaces is carried on the shorter arm of a lever pivoted to the member 4, the arrangement being such that in the closed position the longer arm of the lever bears directly or otherwise on an abutment and thereby causes pressure to be applied between the contact surface carried by the shorter arm of the lever and the cooperating stationary contact, the current being conducted between the two movable contact surfaces, at least in part, by the longer arm of the lever or a conductor attached thereto. In one arrangement, Fig. 1, the moving contact surfaces 9, 9a are loosely mounted in the shorter arms 7, 7a of a pair of crossed levers 6, 6a pivoted to the member 4 at 5, 5a, the levers being so arranged that in the closed position the longer arm 8, 8a of each lever bears directly on the shorter arm of the other lever through resilient means such as springs 11, 11a. The contacts 9, 9a are connected through flexible conductors 10, 10a to the longer arms of the lever. In a modification, Fig. 2, the contact 9a is carried on the shorter arm 17a of a lever 16a pivoted to the bridge member 4 at 5a, and the contact 9 is carried on a lever 16 pivoted at 5 and is connected through a flexible conductor 10 to the longer arm 18a of the lever 16a, a spring 11 being interposed between the arm 18a and the lever 16. A leaf spring 19, secured to the lever 16, moves between stops 20, 21 on the member 4, and in the closed position of the circuit-breaker engages the stop 21 to determine the pressure between the contacts 1, 9. The member 4 also carries a stop 22 which cooperates with an extension 23 on the lever 16a to limit the movement of the latter relatively to the member 4.
Patent GB-1469814-A (GB)
Title: Solid state electronic device and circuit therefor
IPC: H01L27/00
Filed: 1974-03-26
Abstract: 1469814 Semi-conductor glasses ENERGY CONVERSION DEVICES Inc 26 March 1974 [26 April 1973] 13348/74 Heading CIM [Also in Division H1] A semi-conductor switching material is formed from vitreous semi-conductors found among the three-dimensionally cross-linked chalcogenide alloy glasses. Glasses specified are (in atomic %) (a) 25 As, 67À5 Te, 7À5 Ge; (b) 40 Te, 35 As, 18 Si, 6À75 Ge, 0À25 In; (c) 28 Te, 34À5 As, 15À5 Ge, 22 S; (d) 15 Ge, 81 Te, 2 Sb, 2S; and (e) 83 Te, 17 Ge.