baber/WOPTO huggingface dataset:
Patent GB-824376-A (GB)
Title: Gas liquid contacting means
Inventor: WILKINS FREDERICK JOHN
IPC: B01F3/04
Filed: 1956-12-19
Abstract: 824,376. Aerating sewage. DISTILLERS CO. Ltd., and ACTIVATED SLUDGE Ltd. Nov. 8, 1957 [Dec. 19, 1956], No. 38638 /56. Class 111. [Also in Group VI] A disperser for dispersing oxygencontaining gases through liquid sewage comprises a gas supply pipe 1, one or more members 4 connected thereto and on each member a diaphragm 10 of flexible elastic material, e.g. rubber, having perforations 7 formed by puncturing means without removal of material, the diaphragm having a flange formed by downwardly or downwardly and inwardly turning the periphery of the diaphragm, the flange fitting over or around and beneath the rim of the member. In Fig. 1, air passes along the pipe 1 (shown in cross-section) through orifice 2 in bolt 3 and into the chamber formed between the member 4 and a rigid diaphragm supporting sheet 5. From this air passes through a central hole 6 in sheet 5 and escapes through perforations 7 in the diaphragm into the liquid sewage in which the device is immersed. The rigid supporting sheet supports the diaphragm against external liquid pressure when air flow ceases, thus preventing inward distension of the diaphragm with resulting passage of liquid through the perforations into the supply pipe. In Fig. 3, the member 4 is so shaped that its upper surface supports the diaphragm when air flow ceases. In Fig. 8, the downwardly turned periphery of the diaphragm forms a flange 17 which is held against rim 16 of the member 4 by means of a clip 18. The diaphragm may be square, oblong, or oval in shape but is preferably circular ; it can be provided with a thickened periphery, as in Figs. 1 and 3, to increase its grip around the rim of the member 4. Specification 605,046 and 660,666 are referred to.
Patent GB-1587845-A (GB)
Title: Cycle exerciser
IPC: A63B23/04
Filed: 1977-09-16
Abstract: A cycle exerciser having a vaned wheel rotatably mounted on a frame and arranged to absorb energy by movement of the broad surfaces of the vanes against the surrounding body of air. Rotation of the wheel is effected through a pair of foot pedals and connected chain and sprocket mechanism, and/or through a pair of handle bars. Each handle bar is pivotally connected to the frame and is also connected to a respective eccentric through a crank ring rotatably mounted on that eccentric and a drive bar connected to both the crank ring and the handle bar. The two eccentrics are arranged 180 DEG  out of phase and are connected to the foot pedal assembly so as to rotate in response to both pivotal movement of the handle bars and operation of the foot pedals. As the eccentrics are drivably connected to the vaned wheel, that wheel is caused to rotate in response to rotation of the eccentrics.
Patent GB-1361371-A (GB)
Title: Piezoelectric electroacoustic transducer
IPC: B06B1/06
Filed: 1972-08-18
Abstract: 1361371 Piezo electric transducer KUREHA KAGAKU KOGYO KK 18 Aug 1972 [20 Aug 1971] 38755/72 Heading H4J Electroacoustic transducer comprises two piezo electric polymer films 1, 1<SP>1</SP> arranged to face one another and supported in either convex, Fig. 4, or concave (Fig. 5, not shown) configuration and electrically connected so that when one of the films is caused to elongate on application of an electric potential thereto, the other film is caused to shrink. The films can be supported in the convex or concave configuration by differential gas pressure or by a filling of light weight flexible material such as pumice stone or foamed plastics. As described the films 1, 1<SP>1</SP> are of polyvinylidene fluoride which are biaxially stretched, surfaces treated with an electric discharge and aluminium vacuum deposited on the surfaces to provide electrodes. A steady potential of 400 kV./cm. is applied across the film with the films maintained at 100 C. for 1 hr., and then cooled, to apply polarization of the film. The two films are placed one each side of a lens shaped member 9 of polyethylene foam and the assembly clamped by aluminium flanges with a polyethylene spacer 8 between the film edges. The electrodes are suitably interconnected, depending on the relative polarization directions of the films, to cause one to expand and the other shrink when a signal is applied. The transducer may be used as a microphone, loudspeaker, or headphone receiver.
Patent GB-966302-A (GB)
Title: Power supply regulating system
IPC: B23K9/073
Filed: 1960-11-11
Abstract: 966,302. Automatic regulation of current and voltage. AIR REDUCTION CO. Inc. Nov. 11, 1960 [Nov.13, 1959], No. 38797/60. Headings G3R and G3X. [Also in Division H2] A load is supplied from an A.C. source over the main winding of a magnetic amplifier, a rectifier and a feedback resistor which is coupled to the control winding of the magnetic amplifier in negative feedback relationship so that the load current may be maintained at a predetermined constant value. As shown, the star-connected secondary winding of a supply transformer 30 is connected to a load 28, e.g. a welding arc, through the main windings 50, 52, 54 of magnetic amplifiers 44, 46, 48, through rectifiers 70, 72, 74, and through a choke 68, a feedback resistor 86, a coarse adjustment selector switch 88, and a fine adjustment rheostat 90. The control windings 56, 58 and 60 of the magnetic amplifiers are connected in series across the feedback resistor 86, together with rheostats 100, 102 and the adjustment elements 88 and 90. The arrangement is such that variations in the load current from a selected value determined by the setting of the elements 88, 90 cause corresponding variations in the voltage drop across resistor 86 whereby the control current in the windings 56, 58, 60 is automatically varied in a corrective sense so that the current tends to remain constant at its selected value. The control path is also connected over a choke coil 112 and rectifiers 104, 106 and 108 to tappings 38, 40 and 42 on the secondary winding of the transformer 30, so that the control current is varied to compensate for variations in the supply voltage. A keep-alive circuit, constituted by the tappings 38, 40, 42 and rectifiers 76, 78, 80, supplies current to the load at a reduced voltage to prevent extinguishment of the arc 28 when the current through the unsaturated reactors is negligibly small.
Patent GB-1049537-A (GB)
Title: Improvements in or relating to apparatus for differential thermal analysis
Inventor: VOICE ERIC HANDLEY
IPC: G01N25/48
Filed: 1962-10-15
Abstract: 1,049,537. Thermoelectric devices. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 10, 1963 [Oct. 15, 1962], No. 38885/62. Heading H1K. [Also in Division G1] Apparatus for analysing a material by heating a test sample and a reference sample of similar thermal conductivity and specific heat and noting their temperature differences comprises a cylinder made of two materials forming a thermocouple, with one cavity 3 (Fig. 2) in the middle, and a further cavity 6, 7 at each end in which are located the test sample and reference material respectively, whereby on heating temperature differences occur which characterize the test material, these temperature differences causing a resultant potential difference between the two thermo-electric semicylinders, whereby a circulating current is produced which reacts with the earth's magnetic field, or a locally produced magnetic field, to cause the cylinder to rotate about a wire suspension 11. The angle of twist is indicative of the temperature difference, and the ambient temperature is measured by a separate thermocouple (not shown).
Patent GB-916447-A (GB)
Title: Manufacture of granular fertilizers
Inventor: HARRIS FREDERICK JOHN
IPC: C05B7/00
Filed: 1960-11-14
Abstract: 916,447. Granular fertilizers. SCOTTISH AGRICULTURAL INDUSTRIES Ltd. Nov. 13, 1961 [Nov. 14, 1960; March 22. 1961], Nos. 38993/60 and 10454/61. Class 111. Granular fertilizers comprising ammonium salts are made by adding ammonia and at least one acid, which reacts exothermally with ammonia, to a localised region of a circulating stream of granules having substantially the same composition as the product, an amount of granular product equivalent to the quantities of ammonia and acids added being removed from another point of the circulating stream. The rates of recirculation of the granules, addition of reactants and removal of product are such that the heat of reaction ensures that the temperature and moisture content (less than about 1%) at any point in the circulating stream are such that at least most of the granules retain their discrete identities. The ratio of the rate of granule circulation to the rate of product removal is preferably at least 20:1. The temperature of the circulating bed of granules, controlled by the various rates and also possibly by external means, may be 85-115 degrees. The acids, preferably sulphuric, nitric or phosphoric acid, may be first added to the granules which are then ammoniated, or ammonia-laden granules may be acidified or the points of addition of ammonia and acids may be substantially coincident. The ammonia may be anhydrous or in aqueous solution. Salts, e.g. potassium chloride, or additives such as fungicides may be added with the ammonia and acids. The reactants may be added at two or more localised regions in the circulating stream. One embodiment of the invention comprises a drum 1 closed at one end 2. When the drum is rotated, granules 7 are circulated via lifting brackets 3 and shoot 4. Acid is added through pipe 5 and gaseous ammonia through pipe 6. At intervals, product is removed by hand scoop, screened and fines returned to the drum. A supplementary drier may be used to produce an exceptionally dry product. Examples describe the production of monoammonium phosphate and mixed fertilizers comprising ammonium phosphate, potassium chloride and ammonium sulphate or nitrate.
Patent GB-1526266-A (GB)
Title: Matrix addressing of liquid crystal displays
IPC: G09G3/36
Filed: 1976-09-22
Abstract: 1526266 Matrix displays DEFENCE SECRETARY OF STATE FOR 22 Sept 1976 [23 Sept 1975] 30931/75 Heading G5C To address elements of a liquid crystal matrix display comprising crossed electrode arrays on opposite faces of the cell, selected phases of a three-phase supply at phase angles of 0, 120 degrees, 240 degrees, as shown, are applied to addressed and non-addressed electrode strips, those addressed being supplied on both faces from the same phase giving zero voltage across the element at the intersection, while those not addressed are supplied from different phases to provide a r.m.s. voltage above threshold. For sinusoidal supply, the r.m.s. voltage across the element, equal to #3 times the phase r.m.s. voltage, must be above threshold, while for a square wave supply of voltage V on each side of a reference voltage, 1À63 V must be above threshold. To display a pattern the liquid crystal material may comprise nematic material containing 1-90% w/w cholesteric material, optionally with 0À25-10% w/w of dichloric or pleochroic dye(s). Such material becomes scattering, and coloured if dyed, within, e.g. 4 ms. of its supply changing to zero, and clears within, e.g. 30 ms. of supply above threshold being restored, so that one short exposure to zero voltage is sufficient to produce scattering lasting much of a longer scanning period. All elements to be displayed in each line in turn are addressed at one time, followed by each succeeding line in sequence at intervals of, e.g. 4 ms., a frame of 21 lines being scanned in 84 ms.
Patent GB-810529-A (GB)
Title: Improvements in or relating to antiozonation of rubber
IPC: C08K5/13
Filed: 1956-12-28
Abstract: A 2,6-dialkoxy-4-alkylphenol is incorporated in natural or synthetic rubber to inhibit attack by ozone in an amount comprising 2 to 5 per cent by weight of the rubber.  Preferably the alkoxy and alkyl groups each contain 1 to 4 carbon atoms, and the two alkoxy groups may be different.  Numerous examples of inhibitors are specified, including 2,6-dimethoxy-4-methylphenol, 2,6 - dimethoxy - 4n - propylphenol, 2,6 - diethoxy - 4 - isopropylphenol, 2,6 - di - isopropoxy - 4 - butylphenol, and 2 - methoxy-6-ethoxy-4-methylphenol.  The inhibitor may be used in association with a microcrystalline or other paraffin wax and/or with a known antioxidant such as phenyl - beta - naphthylamine, 6 - phenyl - 2,2,4 - trimethyl - 1,2 - dihydroquinoline, 2,21 - methylene - bis - (4 - methyl methyl - 6 - tert. - butyl - phenol), 2,6 - di - tert.-butyl-p-cresol, and the reaction product of acetone and diphenylamine.  The antiozonant is non-staining and may be used in light-coloured natural rubber, and in butadiene-styrene, butadiene-acrylonitrile, and butadiene-isobutylene copolymers, "Thiokol" (Registered Trade Mark), polychloroprene, and silicone rubber.
Patent GB-1511559-A (GB)
Title: Anthracycline glycosides
IPC: C07D309/14
Filed: 1975-09-26
Abstract: 1511559 Daunomycin and adriamycin derivatives SOC FARMACEUTICI ITALIA SpA 21 Sept 1976 [26 Sept 1975] 39471/75 Heading C2C Novel 4<SP>1</SP>-deoxy-daunomycins of the general formula wherein R 1 =R 3 =H and R 2  is H, methyl, methoxy, Cl or Br; R 1  = R 2  = H and R 3  is C 1-4  alkoxy; or R 2 =H and R 1  and R 3  are methyl, methoxy, Cl or Br, are prepared by condensing an aglycone of the general formula with 2,3,4,6 - tetradeoxy - 3 - trifluoroacetamido - L - threo - hexopyranosyl chloride, followed by removal of the protecting group. They may be brominated and the resulting 14 - bromo derivative hydrolysed to give the corresponding novel adriamy cin derivative. 2,3,4,6 - Tetradeoxy - 3 - trifluoroacetamido - L- threo-hexopyranosyl chloride is prepared by reacting methyl N - trifluoroacetyl - daunosaminide with methanesulphonyl chloride, treating the resulting 4-O-mesyl derivative with sodium iodide, hydrogenating catalytically the resulting 4 - desoxy - 4 - iodo derivative, hydrolysing the resulting 4-desoxy derivative with an acid, treating the resulting 2,3,4,6-tetradeoxy-3- trifluoroacetamido - L - threo - hexopyranose with p-nitrobenzoyl chloride and reacting the resulting 1-p-nitrobenzoate with HCl.
Patent GB-1390119-A (GB)
Title: Pressurized container
IPC: B65D83/28
Filed: 1972-08-24
Abstract: 1390119 Pressurized piston dispensing containers R S SCHULTZ 24 Aug 1972 [26 Aug 1971] 39494/72 Heading F1R In a pressurized container in which the product is separated from the propellant by a piston, the piston comprises a body portion which is spaced from the container wall and which has one or more annular flanges which engage the wall over a substantial axial extent. The flange or flanges may extend in or against the direction of movement or in both directions.
Patent GB-1285878-A (GB)
Title: Traffic barrier
Inventor: FAULKNER-NUTTALL GEORGE ROBERT
IPC: E01F13/06
Filed: 1968-08-20
Abstract: 1285878 Traffic barrier; operating mechanism G R FALKINER-NUTTALL 15 Aug 1969 [20 Aug 1968] 39713/68 Headings E1G and E2M A traffic barrier for a car park or railway crossing comprises a bar 1 which can be raised or lowered about a horizontal pivot 2 on a support 3, and is constructed such that, if struck by a vehicle when the bar 1 is horizontal, either the whole structure or the outer part of the bar will pivot about a vertical axis; the operating mechanism comprises a linear electric motor 7 and an actuating rod 6 operatively connected between the motor and the inner end of the bar. A crank arm or link 4 extends rigidly from the pivoted end of the bar 1 and is pivotally connected to the actuating rod 6, the motor being operable to move the rod 6 longitudinally in either direction to pivot the bar. The motor 7 is pivotally mounted and has dashpots 10 and 11 at its ends to abut limit switches 12 and 13 at the ends of the rod 6. The mechanism is housed in the support 3 which is rotatably mounted on a base 14. The power supply 9 to the motor may be operated manually, or automatically by vehicle actuation, e.g. by ground plate or light beam. In another embodiment the bar 1 is in two parts hinged together and normally held in alignment by a spring, the outer part pivoting with respect to the inner part when struck. The barrier may be provided with warning lights or reflectors and an automatic signal or alarm device operable when the bar is struck.
Patent GB-1272909-A (GB)
Title: Copper-zinc alloys
IPC: C22C9/04
Filed: 1970-08-18
Abstract: 1,272,909. Copper-zinc alloys. ALCUMA ESTABLISHMENT. Aug. 18, 1970 [Aug.18, 1969], No.39811/70. Heading C7A. An alloy consists in per cent by weight of: Cu 62-65 Pb 1-3 Ni 0À2-0À8 Mn 0À2-0À8 Al 0À1-0À6 Si 0À3-1 Sn 0À2-1 Sb 0À02-0À2 Zn remainder apart from impurities. The alloy may be used for pipes.
Patent GB-869581-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: BARRY JOHN NORMAN
IPC: H03K9/02
Filed: 1958-12-10
Abstract: 869,581. Transistor amplifiers; pulse modulation circuits. GENERAL ELECTRIC CO. Ltd. Dec. 10, 1959 [Dec. 10, 1958], No. 39852/58. Classes 40(5) and 40(6) [Also in Group XL(b)] A transistor amplifier comprises an emitter follower stage V2 having its input shunted by an impedance 13, the value of the impedance being small compared with the input impedance of the stage, followed by a common emitter stage V3 having an input impedance which is high compared with the output impedance of the emitter follower stage. In order to increase the input impedance of transistor V3, a feedback resistor 18 is included in the emitter circuit and is shunted by a capacitor 19 to provide frequency compensation. A resistor 16 is included in the coupling between V2 and V3 to reduce distortion. The amplifier may be included in a demodulator for amplitude modulated pulses, in which the pulses are applied to a transistor diode 2 and a pulse lengthening circuit comprising a capacitor 3 and resistors 4, 5. A low pass filter 11 (see Group XL(b) ) may also be included. The demodulator forms part of a time division multiplex telephone exchange system.
Patent GB-1438367-A (GB)
Title: Drilling devices
IPC: E21B10/04
Filed: 1973-08-22
Abstract: 1438367 Boring earth &c COMPAGNlE FRANCAISE DES PETROLES and SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM 22 Aug 1973 [23 Aug 1972] 39862/73 Heading E1F Drilling apparatus comprises a chamber 1 within the drill 2, Fig. 1. Liquid being supplied to the chamber at high velocity e.g. 150 m/sec via channels 10 orifices 9 and 12 and material within the chamber is comminuted autogenously. The ground material leaves via sieve apertures 14. In use the core material 5 is pre broken by being forced at an angle into the chamber 1 by a ramp 8. The spoil channels 6 around the drill may be flushed by liquid. In Fig. 3 flushing is effected by the slurry itself passing out via tool flushing grooves 13.
Patent GB-1403909-A (GB)
Title: Vehicle tyre intended to be fitted with anti-skid studs and tyre mould for manufacturing same
IPC: B60C11/00
Filed: 1972-08-29
Abstract: 1403909 Tyre treads PATENT HOLDING Ltd OY 29 Aug 1972 [27 Aug 1971] 40050/72 Heading B7C A tyre has a tread 1 with a plurality of radially inwardly extending blind holes 10, each hole consisting of an outer portion 5 of uniform or inwardly decreasing width merging into an enlarged portion 15 which in turn merges into an innermost extension 24 having a curved wall at its radially innermost tip and curved walls of decreasing curvature on moving radially outwards from the tip; in use, antiskid studs 17 are mounted in the holes such that flanges 18 at one end of the studs locate in the hole portions 15 and the hole portions 24 are left unoccupied to facilitate inward movement of the studs when the tyre passes from an ice or snow covered road to a harder ice or snow free road surface. Other particular shapes for the portions 15, 24 of each hole are disclosed in the Specification in addition to those shown in Fig. 2, and in one embodiment (see Fig. 3, not shown) there is a radially outwardly extending rubber projection (25) at the centre of the base of each hole.
Patent GB-1308230-A (GB)
Title: Snap discs and methods and apparatus for making same
IPC: G05D23/10
Filed: 1970-08-20
Abstract: 1308230 Making thermostats; stamping THERM-O-DISC Inc 20 Aug 1970 [22 Sept 1969] 40236/70 Headings B3A and B3Q A snap disc, movable with snap action between two positions of mobility in which the disc has opposite concavity, comprises a shallow dished member having shallow radial scallops 21. The maximum height x of the scallops, i.e. at the disc periphery is less than the concavity h of the disc and the scallops may extend to the centre of the disc. A punch and die set for forming the disc from a flat circular blank is shown in Fig. 4. In an alternative form of disc there are no intermediate portions between the scallops. When the disc is bimetallic, particularly for use in thermostats, the high expansion material is on the lower side 31 of the disc for high temperature operation and vice versa for low temperature operation. Monometallic discs, e.g. for switches, are actuated by fluid pressure or linkage.
Patent GB-1444485-A (GB)
Title: Process for fixing a dental prosthesis
IPC: A61C13/225
Filed: 1974-09-16
Abstract: 1444485 Adhesives for dental prostheses E HOFACKER 16 Sept 1974 [15 Sept 1973 10 April 1974] 40328/74 Heading C3P An adhesive for adhering dentures to the palate consists of or comprises a solution of polyvinyl pyrrolidone. The solution may be in water or an alcohol and may also contain thickening agents and vitamins &c.
Patent GB-1448809-A (GB)
Title: Nuclear fuel rod and apparatus for simultaneously pressurizing and sealing the fuel rod
IPC: B23K9/00
Filed: 1974-09-18
Abstract: 1448809 Welding by fusion WESTING- HOUSE ELECTRIC CORP 18 Sept 1974 [20 Sept 1973] 40723/74 Heading B3R [Also in Divisions G4-G6] Apparatus for the simultaneous pressurization and sealing of a nuclear fuel rod 10 comprises a housing 28 forming a gas chamber 68 for receiving at least the end of the rod 10 carrying a plug 14 with a sealable orifice 20, a rotatable stop member 70 having a conical opening 72 for receiving the conical end of the plug 14, and an inlet 78 for admitting pressurized gas, e.g. He at 450 p.s.i., to the gas chamber 68. A welding electrode 88 is secured in the wall of the housing 28 opposite the sealeable orifice 20 by means of a plug 90 and to obtain welding of the plug 14 in the fuel rod 10, and sealing of the orifice 20, an are is formed and a weld puddle then bridges the circumferential line formed at the junction of the fuel rod 10 and the plug 14 and the orifice 20. The electrode 88 is insulated by a p.t.f.e. insert 92 which is crimped tightly against the electrode to prevent high pressure (e.g. He) from escaping from the chamber 68. During the welding operation, the fuel rod 10 is rotated relative to the stationary electrode 88. A rotatable sleeve 36 is mounted for rotation in a bore 30 of the housing 28 on a pair of bearings 38, while a push rod 40 positioned in the sleeve 36 is provided with enlarged end faces 42, 44, the face 44 engaging a ram 45 located in the end of sleeve 36. A collet holder 48 has a bore 50 merging into a conical opening formed by diverging walls 52 and a collet 54 is positioned within the conical walls 52, the diameters being such that the fuel rod 10 may be inserted through the central openings in the collet holder 48, collet 54 and ram 45. Rotatable sleeve 36 is keyed to push rod 40 and ram 45 to permit rotation of these elements as a single entity via a pulley 94 and a motorized belt drive (not shown). Pneumatic or hydraulic cylinders 64 each contain a reciprocating piston connected to a backing plate 62 through connecting rods 66 such that as the pistons are moved to the right as shown in Fig. 3, the backing plate 62 engages a flange 58 on the collet holder 48, forcing it to the right to cause the collet 54 to capture the fuel rod 10 and thus hold it securely. To preclude leakage from the gas chamber 68 along the surface of the fuel rod 10, a deformable urethane seal 82 having a central opening is positioned in the sleeve 36 and one end 86 of ram 45 contacts the seal 82.