baber/WOPTO huggingface dataset:
Patent GB-1038382-A (GB)
Title: Process of treating waste gases containing gaseous sulfur dioxide
IPC: C01D5/14
Filed: 1963-02-11
Abstract: Sodium bisulphite is produced when waste gases containing sulphur dioxide are scrubbed with a slurry comprising water and at most 40% (by wt.) of red mud at a temperature in the range from ambient temperature to 100 DEG  C. and preferably in the lower part of this range. After treating the gas, the slurry is filtered to separate a solution containing mainly sodium bisulphite from the insoluble residue.  The red mud mentioned above is that produced as a by-product when bauxite is treated with alkali during the manufacture of alumina.  The pH of the mud slurry preferably ranges from 4 to 5.5, particularly 4.3.  If the waste gas undergoing treatment contains insufficient sulphur dioxide to bring the pH into the desired range, then additional sulphur dioxide is added to the slurry until the desired pH is reached. The sodium bisulphite solution produced may be used to produce sodium bisulphite, or sodium sulphite by the addition of soda ash to the solution under pressure, or deposition after neutralization respectively.  Alternatively zinc oxide may be added to precipitate zinc sulphite which is separated from the sodium hydroxide solution also produced.  Said hydroxide may be used for leaching or digesting crude alumina ores, and calcining the zinc sulphite regenerates the zinc oxide and produces sulphur dioxide for use in the process or for sulphuric acid manufacture.
Patent GB-1370793-A (GB)
Title: Roll changing arrangement for a rolling mill
IPC: B21B31/10
Filed: 1971-02-25
Abstract: 1370793 Rolling mills WEAN UNTTED Inc 21 Jan 1972 [25 Feb 1971] 5436/71 Heading B3M The working rolls 14, 15 of a rolling mill have chocks 19, 23 at the drive side which can be spaced from each other one on each side of the mill passline during a roll changing operation and chocks 18, 22 at the other side so, arranged that one 22 is received within the other 18. The arrangement permits the working rolls 14, 15 of a stand to be changed whilst the strip being rolled remains in a cold rolling tandem mill. The rolls are changed by lowering a lower back up roll 17 by piston-cylinder assemblies 28 to enable wheels 40 on the chock 22 and wheels 58 on the chock 23 of the lower work roll 15 to be  lowered until they engage tracks 47 fixed to and extending between a pair of chock receiving housings 10, 11. An upper back up roll 16 is raised by lifting screws 26 and removing blocks 27 to cause wheels 45 on the chock 18 and wheels 53 on the chock 19 of the upper work roll 14 to engage tracks formed by tracks 44 and 56 connected to the chocks 24 of the upper back up roll 16 and tracks 54 pivotally connected to and extending between the chocks 24. The rolls 14, 15 are moved along the tracks by a ram 83 coupled to the chock 23 on to a carriage 34 of a movable car 71. When the rolls are moved out of the roll stand, the tracks 47 are engaged by wheels 46 on the chock 18, which wheels 46 are normally aligned with apertures 63 in the tracks 47 during a rolling operation.
Patent GB-990064-A (GB)
Title: Improvements relating to combustion apparatus
Inventor: BURRISS WILLIAM LOUIS
IPC: F02C7/00
Filed: 1962-02-13
Abstract: 990,064. Regulating gas turbines; rocket motors. GARRETT CORPORATION. Feb. 13, 1962, No. 5449/62. Headings F1J and FIT. A solid propellant propulsion device has a combustion chamber 10, a nozzle 16 connected thereto by a conduit 12, 14 and a control valve 20 which maintains the output of the combustion chamber at a pre-determined level. Gases from the combustion chamber 10 pass through a valve port 40 and when the gases in the conduit 14 reach a pre-determined pressure the valve 20 is actuated and a port 19 is opened. The increased flow of gas causes a pressure drop in the combustion chamber and the rate of fuel burning is reduced. The nozzle 16 may direct the gas flow to a turbine for driving a pump, alternator or the like.
Patent GB-553851-A (GB)
Title: Television scanning system
IPC: H04N3/223
Filed: 1942-04-25
Abstract: 553,851. Television; valve oscillators. HAZELTINE CORPORATION. April 25, 1942, No. 5575. Convention date, July 1, 1941. [Classes 40 (iii) and 40 (v)] The saw-tooth voltages controlling the scanning operation of the cathode-ray tube of a television receiver are utilized also to control the relative amplitudes of the oscillators generating the saw-tooth voltages and this has the effect that the manual adjustment of one generator causes automatically a corresponding adjustment of the other to maintain the aspect of ratio of the picture. As shown in Fig. 1, the line and field scanning saw-tooth voltages are produced by the oscillators 18, 19 respectively, and are fed to the scanning coils 21, 23, in series with which, resistances 25, 26 are inserted. The saw-tooth voltages developed across these resistances are fed through differentiating circuits 40, 43 and diodes 41, 44 to condensers 42, 42<SP>1</SP>, producing therein pulses E, F, one of which is inverted. These pulsations are fed through filter circuits 46, 47, 48 and 461, 47<SP>1</SP>, 481 to the two grids of a double-triode 45, the anode circuit of which includes the anode resistance 33 of the valve 27 of the oscillator 18. By this arrangement, variations of scanning saw-tooth voltages appearing at the resistances 25, 26, produce opposite changes in the impedance of the double-triode 45 which causes corresponding variations of the voltages applied to the oscillator valve 27 and therefore of the amplitude output of said oscillator. The other oscillator 19 is provided with a variable anode resistance 331 for manual adjustments. The filter circuits 46, 47, 48 and 46<SP>1</SP>, 471, 481 may be made fast or slow acting as desired. The differentiating circuits 40, 43 with diodes 41, 44 may be replaced by peak rectifiers.
Patent GB-714574-A (GB)
Title: Improvements in or relating to flexible sheets for washing and cleaning purposes
Inventor: SERENY RICHARD
IPC: C09G1/00
Filed: 1950-03-06
Abstract: 714,574. Paper for use with detergents &c. HAVEN HOUSEHOLD MANUFACTURING CO., Ltd. March 6, 1951 [March 6, 1950, May 9, 1950], Nos. 5577/50 and 11524/50. Drawings to Specification. Class 96 A flexible paper sheet which is resistant to acids and detergents &c, for use in wiping dishes &c, is given high wet strength by impregnation, e.g. with a melamine- or urea-formaldehyde, or vinyl resin. The paper, e.g. blotting paper, is perforated and may be treated with sulphuric acid.
Patent GB-755988-A (GB)
Title: Improvements in and relating to the winding of yarn
Inventor: MACKIE JOHN PRINGLE
IPC: D01H1/18
Filed: 1954-02-25
Abstract: 755,988. Winding yarn. MACKIE & SONS, Ltd., J. Feb. 9, 1955 [Feb, 25, 1954], No. 5601/54. Class 120 (2). Bast fibres &c. to be wound upon a package 12, or cop, are supplied from a creel 14 situated behind the operator and conveyed through a tube 28 over the operator's head, dust &c. from the yarn being carried along through the tube by virtue of the motion of the yarn, and either deposited into a container 41 at the ends of the tubes 28 or sucked away through an exhaust duct 64. The tube 28 and supporting hangers 30, 32, 34 are slotted to allow of entry of the yarn in " threading-up," the yarns emerging from the tube 28 at 52 and being led about a tensioning device 46 before being wound on to the package. Guide surfaces 40, 47 on the hangers assist in threading-up. The tube 28 may be provided with yarn guides in the form of rollers or fixed porcelain guides to prevent the yarns from contacting the sides of the tube. The creel, which is open towards the bottom to assist in the manipulation of the bobbins therein, is provided with a transparent shield 50 to keep dust from the operator, but allow him to keep the unwinding yarn under review. Specifications 563,613, 563,614 and 683,287 are referred to.
Patent GB-982793-A (GB)
Title: Reverser, for example for lubricating systems
IPC: F16N25/02
Filed: 1962-02-14
Abstract: 982,793. Lubricating; valves. S. CAVALLINI. Feb. 14, 1962, No. 5633/62. Headings F2A and F2V. A reverser to deliver fluid under pressure from a pipeline cyclically and automatically into one and then the other of two lubricating lines L1 and L2 comprises in combination a reversing rod 3 sliding in a cylinder C as main distributer the terminal chambers 15, 16, whereof are put alternately into communication with a chamber 10 accumulating fluid under pressure, through a quick-release subsidiary distributer D the moving rod 5 whereof runs in a cylinder with terminal chambers 17, 17<SP>1</SP> respectively in communication with the two lines L1, L2, alternate movements of the rod 5 occurring in opposition to a catch 6 loaded with a spring of adjustable strength determining in advance the pressure which the fluid must reach respectively in one and the other of the lines L1, L2 so that the rod 5 will be automatically moved from one to the other of its two possible positions, thus causing the shifting of the rod of the main distributer and the delivery of fluid to L1 or L2. The reverser can be manually operated by turning pin 23 by means of knob 24 so that channel 11 at its upper part is disconnected from chamber 10 and connected at its lower part with channels 25, 26 and main line R. The reverser may be linked to an electrical control with a switch 30, so that it executes a complete cycle in predetermined time. The main adjustable-pressure safety valve 31 comes into action if the reverser stops working and the alarm switch 34 is operated.
Patent GB-214044-A (GB)
Title: Improvements in or relating to boots and shoes and to method of producing the same
IPC: A43B9/02
Filed: 1923-02-27
Abstract: 214,044. Kempton, E. F. Feb. 27, 1923. Connecting uppers to insoles and soles. -Relates to methods of making shoes of the kind in which an upper is lasted on to an insole of canvas or similar thin light material, cemented at its edge to the insole, and a sole secured by stitches passing through itself, the upper, and the insole, and consists in the employment of a cardboard or other strip laid between the bottom of the last and the insole to serve as a temporary foundation for the purpose of carrying the tacks which hold the sole in position and to maintain the work in shape after removal of the last during the sewing operation, enabling the shoe to be made with an extremely thin or light and flexible insole. A cardboard or like foundation strip 8, Fig. 4, an insole 1 and attached sock 2 are first secured to the last 7 bv tacks 9. The upper is lasted over the insole and secured by tacks 10 and its edge cemented to the insole, a leather or other plate being, if desired, tacked to the last to keep the edges of the upper in close contact with the insole while the cement is drying. When the cement has set, and the plate, if used, has been removed, the tacks, 9, 10 are withdrawn, a filler 13, Fig. 8, applied, and an outer or mid-sole 4 secured by tacks 14. The last is then removed and the shoe stitched, the stiches passing through the sole 4, and the edges of the upper and insole. The tacks 14 and the strip 8 are then removed. If desired, an outer sole may then be applied. For tennis or other shoes when this outer sole is of crepe or other rubber the mid sole 4 is, before attachment, provided with a layer 5 of crepe or other rubber.
Patent GB-110307-A (GB)
Title: Improvements in Milling Machines for Fluting Twist Drills, Reamers and like Tools.
Inventor: ELLERY ROBERT LUCAS
IPC: B23C3/32
Filed: 1917-04-23
Abstract: 110,307. Ellery. R. L. April 23, 1917. Miding helical surfaces.-Twist drills and like articles are milled in a machine having opposed cutters and in which the e rotating blank is fed axially at a variable rate to obtain a variation in pitch. Increase of thickness of the web is obtained by moving the cutter slides. T h e cutters 47 are secured on spindles axially adjustable in sleeves, themselves axially adjustable in headstocks 1, 2. During the upward travel of the work spindle 5, an arm 55 raises a rod 58, Fig. 8. When the rod bottoms in an adjustable rack 60, feed takes place through a pinion driving the feedscrews 68 of the headstocks through a friction clutch 67 and gears 70. The feed is independently driven at 75 through a worm 26 and wheel 18, and an adjustable collar 72 on the spindle 5 engages a trip 78 to disengage a control lever 22 from a lug 25, allowing a spring to disengage the worm and stop the feed. The rotation of the spindle 5 is obtained through the change-gear 35 and the feed through a screw 6 driven by a gear 34 meshing with the wheel 18. The screw 6 is splined in the boss of the gear and rests on a lever 8 pivoted at 9 and actuated by a cam 12 driven through the spur and worm gearing 33, 14 thus providing a variation in the pitch.
Patent GB-1090743-A (GB)
Title: Anodic phosphating
Inventor: RAJAGOPALAN KUMMATTITHIDAL SAN
IPC: C25D11/36
Filed: 1965-02-10
Abstract: Phosphate coatings are formed on metal surfaces e.g. iron and steel, by applying a stabilized voltage to the surface as anode, using an electrolyte containing phosphate ions e.g. Na2HPO4 and H3PO4.  The stabilized voltage is controlled by a potentiostat to produce phosphate coatings in the range up to 6000 mg/sq. ft. The coating may be modified by adding small amounts of heavy metal salts to the electrolyte or by changing the potential drop at the metal-solution interface.
Patent GB-673408-A (GB)
Title: Improvements in or relating to soot blowers
IPC: F28G3/16
Filed: 1950-03-07
Abstract: 673,408. Soot-blowers. CONTINENTAL FOUNDRY & MACHINE CO. March 7, 1950 [March 7, 1949], No. 5709/50. Class 99 (ii) Means, such as a plate 30, are disposed in a conduit 24 on the upstream side of a valve 19 controlling the flow of a fluid cleaning- medium under pressure to a nozzle 4, and the plate has an orifice 31 which allows the full static pressure of the medium to tightly close the valve when in the closed position and which induces a pressure drop when the valve is open to reduce pressure at the valve and nozzle during the discharge of cleaning medium. The nozzle may be mounted on a tube 3 axially slidable in a body 2 by manually-operated rack-and-pinion means 59 and rotatable by a handle 57 and through gears in a housing 45 secured to the tube. When the tube is moved into and from the advanced position the valve may be opened and closed by a pivoted lever 38 the roller 41 of which is engaged by the J-shaped portion 49 of a dog 47 fixed to the housing.
Patent GB-923999-A (GB)
Title: An improved method of chopping ribbon or thread-shaped products into chips
IPC: B26D1/38
Filed: 1962-02-14
Abstract: 923,999. Comminuting.ONDERZOEKINGSINSTITUUT RESEARCH N.V. Feb. 14, 1962 [Feb. 24, 1961], No. 5710/62. Class 59. [Also in Group V] A method of chopping ribbon or thread-like products 6 into chips 7 comprises guiding the products over the horizontal surface of a fixed cutter 1 having a rounded cutting edge with a radius of curvature of 0.15 to 0.5 times, preferably 0.2 times, the thickness of the products, and driving a movable cutter 2 across the cutting edge of the cutter 1, the clearance between the cutter 1 and the path 8 of the cutter 2 being less than 0.04 mm., preferably less than 0.02 mm. The cutter 2 has teeth 3, 4, 5, &c., the leading side 10 of each of which is backwardly inclined at an angle of 70 to 90 degrees, preferably 90 degrees, relative to the path 8 and the trailing side of each tooth has two surfaces 11, 12, the surface 11 making an angle of 15 to 40 degrees with the path 8 and the surface 12 being at a clearance angle of 5 to 10 degrees relative to the path 8. The angle between the sides of the cutter 1 is preferably 45 degrees.
Patent GB-642945-A (GB)
Title: Improvements relating to glassy phosphate powder compositions and process of making the same
IPC: C02F5/08
Filed: 1947-02-28
Abstract: Phosphate glasses for domestic water softening, prepared for example by heating dihydrogen monosodium orthophosphate and chilling to form a glass, having an alkali metal oxide: phosphorus pentoxide ratio at least 9 : 10, are rendered more easily soluble in water and increased in bulk, by moistening and thus rendering sticky the finely ground glass particles and mixing them with up to 10 per cent of one constituent of a chemical combination which in water generates a gas, drying the thus coated particles below 50 DEG  C. and intimately mixing the other constituent of the combination in powder form with the treated particles. Alternatively equal amounts of ground glass may be treated, one with the first constituent and the other with the second.  The gas-forming combination may be a combination of (a) a solid organic acid such as citric, salicylic, oxalic, maleic or tartaric acids, or an acid salt such as sodium pyrophosphate, sodium acid sulphate, monosodium dihydrogen orthophosphate, potassium acid tartrate &c., and (b) a substance which will react with the acid or acid salt in water to generate a gas, such as sodium carbonate, bicarbonate, sulphite or bisulphite.  The phosphate glass so made is free-running and on adding to water the individual particles are repelled from each other by the gas generated and hence dissolve more quickly.  Specification 642,944 is referred to.ALSO:Phosphate glasses for domestic water softening, prepared for p  example by heating dihydrogen monosodium orthophosphate and chilling to form a glass, are rendered more easily soluble in water and increased in bulk by moistening and thus rendering sticky the finely ground glass particles and mixing them with up to 10 per cent of one constituent of a chemical combination which in water generates a gas, drying the thus coated particles below 50 DEG C and intimately mixing the other constituent of the combination in powder form with the treated particles.  On addition to water the individual particles are repelled from each other by the gas generated and dissolve more quickly, Alternatively, equal amounts of ground glass may be treated, one with the first constituent and the other with the second.  The gas-forming combination may be a combination of (a) solid organic acid such as citric, salycylic, oxalic, maleic or tartaric acids, or an acid salt such as sodium pyrophosphate, or acid sulphate, monosodium dihydrogen orthophosphate, potassium acid tartrate &c., and (b) a substance which will react with the acid or acid salt in water to generate a gas, such as sodium carbonate, bicarbonate, sulphite or bisulphite.  Specification 642,944 is referred to.
Patent GB-715647-A (GB)
Title: Vehicles with tippable hopper-bodies
Inventor: MEATS WILLIAM HENRY
IPC: B60P1/20
Filed: 1952-03-07
Abstract: 715,647. Tipping vehicles. TELEHOIST, Ltd. March 3, 1953 [March 7, 1952], No. 5969/52. Class 108(1) [Also in Group XXX] A hopper d on a road vehicle for carrying cement or other material is swung about a pivot c by a hydraulic ram or rams f, g to. discharge its contents into swivelling shoot h, m. As illustrated the hopper d discharges through a gate e provided with suitable means for securing and operating n. The shoot is formed in two parts, the outer m of which is pivoted to fold over the inner h and is provided with a counter-weight n. The inner portion h of the shoot is secured by a horizontal pivot pin j to a vertical pivot post i to which it is connected by an extensible strut k. The hopper is preferably tipped by two rams which may each comprise two telescoping plungers 9-
Patent GB-115098-A (GB)
Title: Improvements in or relating to File-cutting Machines.
IPC: B23D73/00
Filed: 1917-04-28
Abstract: 115,098. Durham, Churchill, & Co., and Greenhalgh, A. E. April 28, 1917. File and rasp cutting.-In a file-cutting machine, the worm which drives the feed rollers for the blanks is made adjustable and detachable. The bracket 3 carrying the worm 5 is connected to the frame 1 by screws (not shown) engaging elongated holes 6, and the end of the worm shaft is engaged by a thrust screw 9 having a steel ball 12. The worm shaft also has a hardened end plate 13.
Patent GB-1530794-A (GB)
Title: First aid equipment
IPC: A61G3/00
Filed: 1976-02-04
Abstract: 1530794 Stretchers DEFENCE SECRETARY OF STATE FOR 4 Feb 1976 [12 Feb 1975] 6012/75 Heading ASX [Also in Division B7] In a stretcher apparatus for a vehicle a frame 10 for supporting the stretcher 17 has means for rotating the stretcher about a longitudinal axis to any one of a plurality of configurations including inverted. The means comprises hoops 20 attached to frame 13 and having grooves for receiving bearers 21 connected to a pitch adjuster 14. The stretcher feet 17 engage rails 16 of the frame 13 which has fastening devices 18, 19 for locking the stretcher to the rails 16.
Patent GB-680832-A (GB)
Title: Improvements in or relating to liquid-atomising spray devices
IPC: B05B1/34
Filed: 1950-03-10
Abstract: 680,832. Reciprocating pumps. PAINTER, A. S. J., and HOWARD, Ltd., E. R. March 20, 1951 [March 10, 1950], No. 6048/50. Class 102 (i) [Also in Group XXIX] A manually-operable spring-loaded tubular plunger 15, Fig. 2, within a barrel 1 secured to a liquid container by a ring 21, has a hollow spray head 25 housing a nozzle disc 29. The device includes a spring 10 and one-way ball valves 12, 18, and the reciprocation of the plunger effects a spray discharge from an outlet 35 in the disc. The outlet is centrally positioned in the disc, and is fed with liquid from tangential passages 36 formed by grooves in the disc rear wall. and the grooves are fed from an orifice 30 and a circular groove 31 in the spray head.
Patent GB-1060322-A (GB)
Title: Brazing alloys
Inventor: WATSON MICHAEL EARNEST HALL
IPC: C22C30/02
Filed: 1965-02-12
Abstract: A brazing alloy having a melting temperature between 580 DEG  and 640 DEG C. comprises .Sn.9.6-13.6 .In.13.1-17.6 .Cu.27.5-34.2 .Ag.38.9-46.2 the elements being present in proportions such that (1) In/Sn = 1.1-1.6 (2) Ag/Cu = 1.2-1.6 and Ag + Cu/Sn + In = 2.5-3.0. Brazing may be carried out in a controlled atmosphere, vacuum or air, in the latter case a flux is required.
Patent GB-100715-A (GB)
Title: Improvements in Centrifugal Pumps.
IPC: F04D29/42
Filed: 1916-04-29
Abstract: 100,715. Weir, G. & J., and Lang, C. R. April 29, 1916. Casings; impellers in parallel. -To facilitate assembling and inspection, the casing of a centrifugal pump having twin impellers working in parallel is divided horizontally into two portions, the lower portion, which contains the suction port g and the greater part of the suction chamber h, being made up of three pieces, one of which forms the outer wall b of the sub-axial portion of the suction chamber, while the other two form the walls of the sub-axial portions a of the two impeller chambers m, n, and the upper portion, which contains the discharge chamber and port q, being made up of two pieces, one of which includes the outer wall e of the discharge chamber, while the other portion includes the roof c of that portion of the suction chamber situated between the impellers. The casting c, which may be formed with ears f, is connected to the casting e by bolts u, v. The castings a, a are connected to the casting b by bolts s, and to each other by the threaded rod j. The castings b, e are connected by bolts or studs t.