baber/WOPTO huggingface dataset:
Patent GB-519850-A (GB)
Title: An improved process and apparatus for producing metals
IPC: C21B13/00
Filed: 1938-10-04
Abstract: 519,850. Extracting metals. M. F. C. CO. Oct. 4, 1938, No. 28755. Convention date, Oct. 11, 1937. [Classes 72 and 82 (i)] [Also in Group XII] In a process and apparatus for producing metals from their ores, e.g., iron, chromium or manganese, a comminuted predetermined mixture of ore, slag forming materials, and a reducing agent, e.g., carbon, is continuously fed through furnace wall passages 27 in portions 24 of which the charge, rising in temperature as it advances, is reduced. A reducing atmosphere from the charge is formed in the furnace, the charge itself blocking entrance of air, and draft through the stacks 7 lessened by cooling pipes located inside. With sulphide ores the reducing agent is air supplied through hollow shafts 31. High carbon metal is obtained if excess carbon in the mixture is used and the temperature in the reducing chambers 24 increased by supplying air through the shafts 31. Different ores may be used in different feed tubes and alloys of desired composition obtained by regulating individually the speed of the conveyers 26. Burners at each end of the furnace have their air supply preheated in ducts 19 along the furnace base, covered, half at each end, by hoods 22 housing blowers 21. The mixture is conveyed to the charging hoppers 29 by an elevator 43, Fig. 1, screw conveyers 42 located in troughs 40 and valve provided chutes 39. The feed tubes 27 are cooled by water circulated around them.
Patent GB-810519-A (GB)
Title: Method of making a refractory body and articles made thereby
IPC: C04B35/48
Filed: 1956-09-20
Abstract: A sintered refractory body consists essentially, in the weight ratio, on an oxide basis, of 2 zirconia to 3 alumina to 1 of silica, the three oxides amounting to at least 95 per cent., the zirconia being present as crystalline aggregates 4-10 microns in diameter and being individually surrounded by and embedded in a network of needle-like crystals of mullite, the molar ratio of zirconia to mullite being 2 to 1.  The body is prepared by heating without fusion above 1,500 DEG C. but not above 1800 DEG C. a mixture of two parts zircon to three of alumina, both as fine powders.  Also present, up to 5 per cent., can be mineralizers, e.g. titania, fluorides, boric oxide, and the oxides of zinc, iron, manganese, molybdenum and cerium.  The bodies may be moulded by slip casting, the slip containing a deflocculant, e.g. sodium silicate, or formed by extruding a body mass made plastic by water and, e.g. gum arabic.  Cracks can be avoided when firing the cast article by including up to 20 per cent. of fired grog of similar composition. Specification 462,866 is referred to.
Patent GB-806962-A (GB)
Title: Preassembled fastener units
IPC: F16B19/10
Filed: 1956-09-20
Abstract: 806,962. Mounting terminals. ILLINOIS TOOL WORKS. Sept. 20, 1956 [Sept. 20, 1955], No. 28809/56. Class 38 (1). [Also in Group XXV] An electrically-insulated terminal comprises a stud 16b with a head 24b and a shank 26b, and a tubular anchor member 18b of resilient material, e.g. nylon or polyethylene, with an axial bore 32 in which the shank is fixed. A portion 36b of member 18b which is displaced from the stud head is radially enlarged and the member is flanged adjacent the head. The terminal is pushed into a hole 20 in a workpiece, and may be used to secure parts 12, 14 together. The end of the stud remote from the head may be serrated, knurled or headed to increase its grip on the anchor member. In a modification, the radiallyenlarged portion is formed on the end of the anchor member remote from the head. Bore 32 may pass through the anchor member.
Patent GB-191870-A (GB)
Title: Improvements in ski-cycles or scooters
IPC: B62K3/10
Filed: 1921-10-31
Abstract: 191,870. Ballington, H., and Balling- ton H. Oct. 31, 1921. Bicycles; foot-cycles.-A scooter has a central bottom bracket F carrying a pedalling-gear G and also the saddle pillar I. A split lug K holds stays J and simultaneously the saddle pin L. A spoon brake P is provided.
Patent GB-159025-A (GB)
Title: Improvements in and relating to the treatment of ores and the like by flotation
IPC: B03D1/012
Filed: 1919-11-21
Abstract: 159,025. Taylor, M. T., and Parting- ton, J, W. Nov. 21, 1919. Surface-tension separating-process.-In the concentration of ores by flotation, sulphonated fatty or resin acids are used as agents. Soaps, palm oil, or fatty acids obtained therefrom, may be treated with strong sulphuric acid and the product may be used in the concentration process either alone, or in association with propyl butyl or amyl acetates or other esters, or alcohols, or pyridine, phenol, eucalyptus oil, or other substances. The Provisional Specification refers also to the use of fatty acids as agents.
Patent GB-391438-A (GB)
Title: Improvements in or relating to valves
IPC: F16K43/00
Filed: 1931-10-19
Abstract: 391,438. Valve accessories. MASON, H. L., 103, King Henry's Road, South Hampstead, London. Oct. 19, 1931, No. 29042. [Class 135.] Valves or cocks fitted with supplementary valves for closing the passageway when the main valve is removed for inspection or repair has one end of the supplementary valve provided with resilient means capable of lateral or radial expansion after insertion through the valve seat aperture. In the form shown in Fig. 5 a rubber washer j is compressed by a screw f between a plate i and a perforated cage a provided with a flange c seating on the partition b<1> or in a recess in the partition. The rubber diaphragm may be replaced by a normally dished metal washer or by one having radial corrugations. The cage may be pressed or diecast and the holes k may be made small enough to form a strainer or may be covered with gauze. The cage may also be formed with a nozzle adapted to direct the flow clear of the seating. In a modification the flange c is dispensed with and the screw f extended to form a stop, arranged either to arrest the cage flush with the seating surface or to allow it to fall slightly below the seating surface. In the form shown in Fig. 11 the cage is provided with a circumferential groove housing a resilient band 39 adapted to be expanded by inlet pressure admitted through ports 37. Stops may be projected from the bottom of the cage to prevent it passing through the partition. In a further modification, shown in Fig. 2, a metal stirrup s provided with ears t carries a metal washer i just small enough to pass through the seat aperture and supporting a limp rubber washer g of larger diameter than the hole. In another form a washer with three or four arms replaces the stirrup. The cage may be replaced by a " spider " guide of cruciform section, which provides a convenient grip when tightening the clamping screw.
Patent GB-1512498-A (GB)
Title: Static discharge device and method for fibre discharge from a pressurized digester
IPC: D21C7/08
Filed: 1976-07-13
Abstract: 1512498 Discharging fibrous material AMERICAN DEFIBRATOR INC 13 July 1976 [31 Dec 1975] 29058/76 Heading BIX A discharge device 42 for discharging fibrous material from a continuous pressurised system such as a bagasse digester by the cold blow method using the system pressure to blow the fibrous material to a blow tank through a blow valve orifice is connected to a vertical outlet pipe 40 of the digester of such length to permit the fibres to cool while maintaining a liquid level in the discharge device. Said device comprises a body 44 having a conical lower section 50 below which is attached a scrap collector chamber 58 fitted with upper and lower gate valves 54, 56 into which heavy waste such as stones falls and can be removed at intervals by appropriate manipulation of the valves. A fibre discharge neck 64 extends upwardly above the scrap collector, its internal opening being covered by a grid plate with self-cleaning tapered holes. Quenching liquor is admitted through tangential inlet pipe 84 with smaller amounts through pipe 86 on the scrap collector to keep fibre out of said collector. While the above embodiment has no moving parts a second embodiment (Fig. 5), useful when the discharge stream contains more than 8% of fibre, comprises a mechanical agitator 92 having wiping blades 102 mounted on agitating cross-members 104 to clean the face of the grid and a slightly conical plate 100 at the lower end for agitating the liquid and to direct heavy objects into the scrap collector 58.
Patent GB-1005718-A (GB)
Title: Improvements relating to buckles
Inventor: HEFFORD CHARLES GEORGE
IPC: A44B11/25
Filed: 1961-08-11
Abstract: 1,005,718. Buckles. STADIUM Ltd. Aug. 28, 1962 [Aug. 11, 1961], No. 29090/61. Heading E2A. A buckle for a belt comprising a body member 2 including a clamping surface 18 and two side flanges, a rod 14 supported by the flanges so that it cannot rotate but so that it can be moved in a direction transverse to its length along the flanges and so that when it is moved in one direction it forms a clamp with the clamping surface for a length of belt passed round the rod and means for enabling the rod to be moved manually to a position along the flanges such that the length of belt is not clamped. As shown the rod 14 engages in sloping slots 15 in the flanges and it is moved by means of buttons on the ends of the rod. In a modification a strap is attached to the ends of the rod to enable it to be moved. The buckle can be formed with means for engaging a metal tongue on the other end of the belt.
Patent GB-519904-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J31/14
Filed: 1938-10-07
Abstract: 519,904. Cathode-ray tubes. KOLSTERBRANDES, Ltd., and SMYTH, C. N. Oct. 7, 1938, No. 29128. [Class 39 (i)] In thermionic valves of the deflection-controlled type, the target arranged to intercept a variable portion of the electron beam is treated to render it luminescent under the influence of the beam. The electron gun B produces a divergent beam of electrons D which is deflected to varying degrees by electrostatic plates Y and is intercepted by a target C which is coated with material rendered luminescent under electron bombardment. The target is preferably inclined to the axis of the tube so that it can be seen from the side. The tube is intended to function as a tuning indicator or an amplifier, detector, or modulator valve. There may be additional or auxiliary anodes or targets located in the plane of or in front or behind the coated target to receive electrons deflected therefrom and the valve may have one or more intensity controlling electrodes in addition to the deflection controlling electrodes.
Patent GB-638655-A (GB)
Title: Improvements in and relating to boxes or like containers
IPC: B65D6/18
Filed: 1947-11-03
Abstract: 638,655. Boxes. COOMBER, R. H. Nov. 3, 1947, No. 29257. [Class 18] A box or like container, for fruit and the like, formed from aluminium or aluminium alloy comprises two side walls 1, integrally formed with the base 3 and separately formed end walls 4, 5, the side and end walls being secured together by angle brackets 8. The angle brackets 8 do not extend to the full depth of the ends and sides and the ends and sides are spaced slightly apart at the corners so that a ventilation opening 9 is formed in each bottom corner of the container.. The lower edges of the end walls are inturned and secured to the base 3. Corrugations may be provided in the walls and bottom and the upper edges of the side and end walls may be provided with an inturned flange 10. The brackets 8 may extend above the top of the box to facilitate handling, and battens 20 may be provided on the base 3 to assist ventilation when the boxes are stacked. The side and end walls may be formed of two portions providing a gap between them to assist ventilation. In the last arrangement, plates may be secured on the inside of the upper portion of the end walls adjacent the gap to provide a hand grip.
Patent GB-1430835-A (GB)
Title: Oxindole derivativrs
IPC: C07D209/34
Filed: 1973-06-20
Abstract: 1430835 Oxindole derivatives SANDOZ Ltd 20 June 1973 [23 June 1972] 29287/73 Heading C2C The invention comprises (i) compounds of formula wherein R 1  is C 3-7  alkenyl, and (ii) O-acyl derivatives of compounds of the above formula where R 1  is selected from a wide range of organic radicals (defined in the Specification). Compounds (i) (and their analogues where R 1  is other than alkenyl) are prepared by reacting 4- glycidyloxyindole with R 1 NH 2 , while compounds (ii) are prepared either by acylation, or by hydrogenolysis of the corresponding N-benzyl- O-acyl compounds. Therapeutic compositions having antiarrhythmic activity and exhibiting a blocking effect on the adrenergic beta-receptors comprise the above compounds (i) or (ii), possibly in acid addition salt form. Preferred forms of administration are solutions and tablets.
Patent GB-193918-A (GB)
Title: Improvements in the method of cementation of boron into the surface of iron or steel
IPC: C23C8/70
Filed: 1921-11-03
Abstract: 193,918. Miyaguchi, T. Nov. 3, 1921. Cementation.-A hard and tough surface layer is obtained in iron and steel alloys by a cementation process in which the iron &c. is heated to a temperature of 800-900‹ C. in contact with powdered ferro-boron or a mixture of boron oxide or other boron compound and carbon powder in the presence of a continuous stream of chlorine gas. Parts of the surface not required to be affected are protected by an iron plate, iron powder or clay.
Patent GB-1157085-A (GB)
Title: Improvements in or relating to Magnetic Alloy Components
Inventor: CATT DENNIS HENRY LEWIS
IPC: H01F41/26
Filed: 1965-07-10
Abstract: 1,157,085. Permanent magnets; cores. PLESSEY CO. Ltd. 8 July, 1966 [10 July, 1965], No. 29354/65. Heading H1P. [Also in Division C7] A magnetic shield, magnetostrictive transducer, permanent magnet, or transformer or choke core comprises a self-supporting magnetic body comprising an alloy of elements selected from Co, Fe, Mo, and Ni electroformed from a suitable electrolyte containing quinoline ethiodide with or without saccharin, as stress-reducing additive so that the body has a stress of less than 10,000 p.s.i. tensile. The body may be of laminated construction comprising at least two layers of the above electroformed alloy separated by a film of magnetically insulating material, e.g. formed from an albumin solution or by electrolytic or atmospheric oxidation.
Patent GB-495911-A (GB)
Title: Improvements in indicating devices associated with high frequency generators
IPC: G01R13/00
Filed: 1937-10-27
Abstract: 495,911. Wireless signalling. PEDERSEN, M. P. Oct. 27, 1937, No. 29377. [Class 40 (v)] In high-frequency generators, meters inserted in the grid and anode circuits are combined in one instrument in such a way that their scales are adjacent, Fig. 2, or coincident, Fig. 3. The ratio of grid current to anode current being constant when the valve is correctly coupled, shunts are provided so that when this condition is attained the two pointers C, D are in line F, Figs. 2 and 3, irrespective of their position on the scales. The circuit of the generator is therefore adjusted until the pointers are in line and the valve is then known to be working at maximum efficiency, no actual readings being necessary. The meter which is connected in the anode circuit may be provided with a further scale E, Fig. 2, to indicate the power used in this circuit or in a load circuit coupled to it.
Patent GB-696080-A (GB)
Title: Improvements relating to adjustable brackets
Inventor: STRINGER GEORGE BIBBYE
IPC: A47J47/20
Filed: 1950-11-30
Abstract: 696,080. Brackets. HARTINGTON ENGINEERING CO., Ltd. Feb. 28, 1952 [Nov. 30, 1950], No. 29396/50. Class 52(v) A bracket for attaching a draining board to a sink comprises an inverted U-shaped member with sides 3, 3a and a straight piece 6 extending at right angles to the side 3a then bent upwardly to form an arm 11 with a lug 12 to support the board. An abutment portion with an upturned edge 16 provided with a slot 9 so it may be adjustably attached to the portion 6 by means of a threaded bolt 7. The upturned edge 16 and the arm 3 are provided with rubber coatings 20, 19. Instead of a slot the abutment member may have a series of holes or a serrated slot.
Patent GB-954035-A (GB)
Title: Preparation of alpha-hydroxyisobutyric acid
Inventor: SCHOENBRUNN ERWIN FREDERICK
IPC: C07C51/275
Filed: 1960-08-25
Abstract: The invention comprises a solution of dinitrogen tetroxide in a mixture of acetic and nitric acids wherein the molar ratio of acetic to nitric acid is from 0.5 to 3 to 1.  The solution, which may contain up to 15% by weight of water, may be prepared by absorbing N2O4 in the acid mixture by countercurrent contact in a column at atmospheric or superatmospheric pressure, e.g. 100 p.s.i.g.  The acid mixture is preferably a substantially azeotropic mixture. The solution may be used for the oxidation isobutylene to a -hydroxyisobutyric acid (see Division C2). Specifications 785,152, 855,880 and 883,493 are referred to.ALSO:a -Hydroxyisobutyric acid is prepared by oxidising isobutylene with dinitrogen tetroxide in a reaction solvent comprising a mixture of acetic and nitric acids having the dinitrogen tetroxide absorbed therein, wherein the molar ratio of acetic to nitric acids in the reaction solvent is from 0.5 to 3 to 1.  The reaction is carried out at below 40 DEG C., and preferably below 10 DEG C.  The N2O4 may be dissolved in a mixture of acetic and nitric acids and then the isobutylene passed into the resultant solution or, alternatively, the N2O4 may be dissolved in a first mixture of acetic and nitric acids, isobutylene may be dissolved in a second mixture of acetic and nitric acids (thus forming t-butyl acetate and t-butyl nitrate), and the resulting solutions combined. The preferred concentration of N2O4 in the acid mixture is between 20% and 60% by weight although smaller amounts may be used.  Desirably at least one mole and preferably 3 moles of N2O4 is used for each mole of isobutylene.  In addition to a -hydroxyisobutyric acid the oxidation yields a -nitratoisobutyric acid, a -nitratoisobutyraldehyde, a -hydroxyisobutyraldehyde and a -(a -hydroxyisobutyroxy)-isobutyric acid which may be converted to further a -hydroxyisobutyric acid by further oxidation and/or hydrolysis.  Specifications 785,152, 855,880 and 883,493 are referred to.ALSO:A mixture of acetic and nitric acids wherein the molar ratio of acetic to nitric acid is from 0,5 to 3 : 1 is used for separating dinitrogen tetroxide or isobutylene from gases containing them. Dinitrogen tetroxide may be separated from carbon dioxide, carbon monoxide, nitrogen and nitrous oxide while isobutylene may be separated from complex mixtures of hydrocarbon gases containing both saturated and unsaturated hydrocarbons.  In Example 6 isobutylene is separated from a mixture of isobutane, butene-1, isobutylene, butene-2, n-butane, butadiene and trans butene-2 and in Example 8 isobutylene is separated from a mixture of n-butane, isobutane, propane, isobutylene, butene-1 and trans butene-2.  Specifications 785,152, 855,880 and 883,493 are referred to.
Patent GB-942606-A (GB)
Title: Improvements in means for measuring the length of metal sheets and other rolled stock
IPC: G01B5/04
Filed: 1961-08-16
Abstract: 942,606. Linear dimension gauging. HUTTENWERK OBERHAUSEN A.G.,and SCHLOEMANN A.G. Aug. 16,1961 [Aug. 16,1960], No. 29520/61. Heading G1M. A device for measuring the length of rolled stock such as sheets 5 extending beyond shears 2, 3, comprises a carriage 7 movable on a track 6 and having a tappet 15 which is engaged by a sheet 5. The movement of the carriage 7 turns a pinion 13 (Fig. 3) meshing with a rack 12 and operates an impulse sender 14 to give a measurement. The carriage 7 may be moved by means of a cable 8 passing round pulleys 9,10 and round a drum 27 connected by an electromagnetic clutch 30 to a motor 29 to yieldingly urge tappet 15 against sheet 5. The track 6 and carriage 7 are mounted on bell crank levers 19 and may be swung out of position to enable a crossfeed device to be used on the track 6.
Patent GB-654757-A (GB)
Title: Control mechanism for jet driven sustaining rotor blades
IPC: B64C27/18
Filed: 1948-11-15
Abstract: 654,757. Helicopters. AUTOGIRO CO. OF AMERICA. Nov. 15, 1948, No. 29576. Convention date, Nov. 15, 1947. [Class 4] In a jet-driven helicopter rotor, the operation of the jets is controlled by the relative lag-lead movements of the rotor blades. As shown, the blade drag pivots 13 carry double-armed levers 26 connected by vibration dampers 27, 28 embodying electric contacts connected in series and controlling solenoid valves 19 in the fuel pipes 18 of the jet nozzles 17. The dampers comprise relatively slidable members 27, 28 with interposed strips 29 of friction material, pressed into engagement by springs 31, the strips 27, 28 carrying the electric contacts 33, 35. Equal lag-lead movements of all the rotor blades have no effect on any of the contacts, but excessive relative movement of any blade beyond a predetermined value results in separation of the associated contacts and closure of all the fuel valves 19. An over-riding manual switch is provided to control the valves 19.
Patent GB-733550-A (GB)
Title: Improvements in or relating to an electric windshield cleaner
IPC: B60S1/08
Filed: 1953-10-26
Abstract: 733,550. Windscreen cleaners. TRICO PRODUCTS CORPORATION. Oct. 26, 1953 [Oct. 27, 1952], No. 29576/53. Class 138 (1). A windshield cleaner comprises two wipers driven from a single electric motor, power transmission means for driving one wiper faster than the other so that after a predetermined number of wiper cycles of one wiper, the two wipers will be momentarily brought into phase, and control means for the motor. The electric motor 1, Fig. 4, drives through a worm 3, gears 4, 5 having 64 and 80 teeth respectively. The gears 4, 5 are respectively connected by cranks 13, 131, Fig. 3, and linkage 15 to the pivot shafts of the wiper blades (not shown). In the position of the cranks shown the wiper blades will be in a parked position and adjacent one another along the bottom of the windshield. Each crank has a cam lug 28 and in the positions shown in Fig. 3, the cams engage plungers 25 of switches 21 to open those switches. These switches are in parallel with the operating switch for the motor. When the wipers are started the wiper operable by the crank 13 will effect five complete cycles to every four complete cycles of the wiper operable by the crank 131. On breaking the operating switch the motor and wipers will continue to operate until both switches 21 simultaneously open with the wipers in parked position.
Patent GB-192505-A (GB)
Title: Improvements in or connected with protectors for gas mantles
IPC: F21H1/00
Filed: 1921-11-07
Abstract: 192,505. Haynes, H., and Metcalfe, W. Nov. 7, 1921. Mantle accessories.-A protector for inverted gas mantles comprises a cage formed of strands of members made of, or having incorporated therewith, asbestos or like material, which cage does not touch the mantle, and a metal or other spring-like or adjustable clip, ring or band, adapted to fit. mantle rings of various sizes and to which the strands or members are immovably secured. In one form, a cage is formed of U-shaped strands a, made of metal wire covered with asbestos, which cross at the base and are tied together as at b. The arms of one or more of the strands are wired, tied, brazed or otherwise secured to a metal wire spring clip or open ring c adapted to be sprung round a mantle ring d, the ring c being formed with one or more turns f intermediate its ends, and being preferably covered with asbestos strands h. One or more of the arms of the U-shaped strands may be formed short, as shown at g. Horizontal and diagonal strands may be interwoven with the U-strands.