baber/WOPTO huggingface dataset:
Patent GB-656478-A (GB)
Title: Preparations for use in contact with the teeth
IPC: A61K8/19
Filed: 1948-03-11
Abstract: A preparation for use in contact with the teeth is prepared by mixing an at least sparingly water-soluble fluorine-containing salt; a salt having as cation beryllium, iron (ic), thorium, vanadium or zirconium and having a water-solubility of at least 0.05 per cent at 70 DEG F; and a flavouring material and/or a cleansing agent.  Specified fluorine-containing salts are sodium fluoride, ammonium bifluoride, sodium fluosilicate and potassium fluoborate.  The metal salts referred to are ferric ammonium sulphate, vanadium chloride, zirconyl chloride, beryllium nitrate, beryllium chloride, ferric chloride, and thorium nitrate. Specified flavouring materials are salt, sugar, saccharin, vanillin, peppermint, spearmint, cinnamon, anise, and clove. Cleansing agents include sodium lauryl sulphonate, the sodium salt of the cocoanut oil fatty acid monoester of 1, 2-dihydroxypropane-3-sulphonic acid, the oleic acid ester of the sodium salt of isethionic acid, the potassium salt oleic acid amide of N-methyl tourine, the sodium salt of the lanyl-alcohol ester of sulphoacetic acid, the sodium salt of the sulphoacetamide of amino ethyl laurate, the potassium salt of the sulphonic acid derived from the condensation product of benzene and a chlorinated kerosene fraction, the monolauryl ether of 1, 2-dihydroxy-propane-3-sodium sulphonate, the monolauryl ether of the sodium salt of isothionic acid, alkyl mercaptan polyglycol ethers and phenol polyglycol ethers. Other additions include abrasives such as calcium sulphate and pumice, alcohol, terra alba, gum tragacanth, glycerine, dyes and thickening agents such as quince gel or methyl cellulose.  The preparations may take the form of dentrifices, mouth washes and chewing gums.  The Specification as open to inspection under Sect. 91 refers to hydrogen fluoride as one of the initial ingredients.  This subject-matter does not appear in the Specification as accepted.
Patent GB-804860-A (GB)
Title: Improvements relating to coupling networks for wideband electronic amplifiers
Inventor: PERCIVAL WILLIAM SPENCER
IPC: H03F1/50
Filed: 1954-03-16
Abstract: 804,860. Impedance networks. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 9, 1955 [March 16, 1954], No. 7542/54. Class 40 (8). [Also in Group XL (c)] A network for use as a wide-band intervalve coupling (see Group XL (c)) comprises a transformer 5 of turns-ratio # primary inductance L/# <SP>2</SP>and with its secondary shunted with a resistor 1 of resistance R, in series with a parallel RC network comprising resistor 2 of resistance R/# and condenser 4 of capacity #C. It is shown in the Specification that if the condition L = R<SP>2</SP>C is fulfilled the network has a substantially constant transfer admittance. Specification 460,562, [Group XL], is referred to.
Patent GB-704226-A (GB)
Title: Process for making polyalkanolamines
Inventor: HUSCHER MYRON EARL
IPC: C07C215/12
Filed: 1952-03-24
Abstract: Polyalkanolamines are obtained by passing an olefine oxide containing not more than five carbon atoms into contact with an anhydrous alkanolamine of formula R-NH-R1, in which R is a monohydroxy alkyl radical and R1 is hydrogen or a monohydroxy alkyl radical, neither of which contains more than five carbon atoms, in the absence of a solvent and of ammonia, at a temperature maintained between 0 DEG and 100 DEG C., the oxide being added in a molecular proportion, relative to the alkanolamine, not exceeding 1:1 when R1 is a monohydroxy alkyl radical and not exceeding 2:1 when R1 is hydrogen. Suitable oxides are ethylene oxide, propylene oxide, isobutylene oxide and butadiene monoxide.  Suitable alkanolamines as starting materials, are monoethanolamine, monoisopropanolamine, monoisobutanolamine, diethanolamine, diisopropanolamine and monoethanol monoisopropanolamine.  Preferably the reaction is conducted under reflux or in a closed vessel at a pressure at least equal to the autogenous pressure of the reaction mixture.  In the examples (a) monoethanolamine is reacted with ethylene oxide to give a mixture of triethanolamine and diethanolamine; (b) propylene oxide is reacted with monoisopropanolamine to give triisopropanolamine with a little di-isopropanolamine; and (c) propylene oxide is reacted with diethanolamine to give diethanolmonoisopropanolamine.  U.S.A. Specification 2,373,199 is referred to.
Patent GB-981963-A (GB)
Title: Clarification of coal washery effluent
IPC: B03D1/016
Filed: 1961-03-02
Abstract: Coal washings, having a pH exceeding 6, are coagulated by a polyacrylamide of m.w. exceeding 500,000 and less than 1% hydrolysed. Specification 760,653 is referred to.
Patent GB-1060384-A (GB)
Title: Sealing closure
IPC: B65D41/12
Filed: 1964-02-25
Abstract: 1,060,384. Sealing closures. F. M. HAGMANN, H. B. GRAHAM, and R. B. MORRIS. Feb. 25, 1964, No. 7775/64. Heading B8T. A sealing closure, of the crown or screw-on type, for a container 30 comprises a cap 10, Fig. 4, having a continuous groove 12, the edges of which provide pressure ridges 17, 18; and a sealing-lining element 20 of resilient material, e.g. a plastics material, including a sealing member 22 adjacent the groove, such that before the cap is applied to the container a portion of the member is outside the groove. The skirt of the cap is fitted with dimples 14a or an annular groove to retain the element in the cap. During capping, extrusion of the sealing element is prevented by high pressure applied at the ridges, and the sealing member becomes confined between the groove and the container lip when capping is completed, Fig. 5 (not shown). Out-of-flat deviations of the container lip 31 are accommodated by varying amounts of vertical travel of the sealing member during capping. In the embodiment of Fig. 7 (not shown), the groove (56) is defined by two depressions (54), (55) which form pressure ridges. The sealing-lining element may be formed with a central liner portion 21, or simply with a narrow flange (71), Fig. 7. The sealing member of the element may be a full O-ring of solid cross-section, Fig. 10 (not shown). In the embodiment of Fig. 13 (not shown) the shape of the cap has been so adjusted during capping that the groove space and the volume of the ring are equal. A further embodiment of the sealing-lining element comprises simply an O sealing ring of solid cross-section.
Patent GB-937084-A (GB)
Title: Apparatus for centering a moving web
Inventor: POWERS RICHARD WALTER
IPC: B65H23/038
Filed: 1962-02-28
Abstract: 937,084. Feeding webs. J. L. FIFE. Feb. 28, 1962, No. 7888/62. Class 100 (1). A pair of feeler type, photo-electric or vacuum type sensing heads are provided one at each side of the web in a web-centering device. Means responsive to one head is provided for moving that head laterally in following relation with lateral variations of the respective side edge of the web and simultaneously moving the other head an equal distance in the opposite direction. A web-shifting mechanism of a known type, such as a cambering roll assembly, as described in Specification 840,929, or an unwind web roll-shifting mechanism, is provided, which is responsive to the other sensing head for retaining the opposite side edge of the web in a predetermined relation with respect to said other head. The above device will therefore have the effect of centering the centre line of a moving web. Fig. 1 shows a web-shifting mechanism 4 in the form of a cambering roll assembly, hydraulically operated and controlled by a four-way control valve 58. Two vacuum type sensing heads 20, 22, with suction orifices 24 connected to respective vacuum pumps 64 are provided. Head 20, connected to the piston-rod 42 of an hydraulic ram 34, senses the edge 65 of the web 6, and head 22 associated with an hydraulic ram 36 senses the edge 70. The rear of ram 34 is connected by a conduit 48 to forward chamber of ram 36. A pump 50 supplies hydraulic fluid under pressure to either of the rams, via conduits 54 and 56, under the control of head 20 and control valve 58. Any lateral movement of head 20 will result in an equal and opposite movement of head 22. Head 22, associated with vacuum pump 64 controls the operation of valve 58 which in turn controls the shifting mechanism 4. In a further embodiment, Fig. 3 (not shown), the two hydraulic rams are replaced by a single ram associated with two movable racks and a fixed pinion. Each rack carries one sensing head thereby providing equal and opposite lateral movement of the heads.
Patent GB-1504407-A (GB)
Title: Shaving system
IPC: B26B21/14
Filed: 1975-02-25
Abstract: 1504407 Razors GILLETTE CO 25 Feb 1975 [5 March 1974] 7890/75 Heading B4B A razor comprises a grip portion 14, a support portion 16 for a blade element 12, a connection 18 between the grip portion and the support portion for permitting movement therebetween during the course of shaving, and means 60, 80, 100, 120 for controlling the amount of such movement. As shown in Figs. 8, 9, the support portion 16 is connected to the grip portion 10 by means of an arcuate bearing device including curved grooves 131 co-operating with curved flanges 164. The support member is formed with a recess 134 for engagement with a pair of spring tabs 128 which normally maintain the support in a neutral position. During shaving the support may move between two extreme positions determined by stops 138, as shown in Figs. 8, 9. A slidable lock member 100 is provided with latch portions 110 adapted to engage in grooves 136 formed in the support when moved by a manually-operable lever 60 so as to lock the support in its neutral position. In the modification shown in Fig. 10, the support member is formed with resilient webs 210, 212 adapted to engage with respective surfaces 224, 222 formed in a slidable member 220 provided in the grip portion. The member is incrementally adjusted by means of a control member 60<SP>1</SP> in order to vary the degree of resilience of the webs.
Patent GB-290783-A (GB)
Title: Improvements relating to the conservation of heat in a steam power system
IPC: F01K11/00
Filed: 1927-03-22
Abstract: 290,783. Steam Heat Conservation Co., Ltd., McCallum, J., and Anderson, H. P. H. March 22, 1927. Steam, returning to boiler. -In a method of conserving heat within a steam power plant in which exhaust steam is partially condensed in a relatively small cooler and compressed by a further exhaust, the resulting steam-water mixture being returned to the boiler by a pump, the velocity of travel between cooler and pump is kept from falling in order to retain the mixture in economically pumpable condition. The cooler which may comprise a nest of tubes c with a jacket d having an inlet e and an out.let f for water or other cooling medium, is connected with an exhaust pipe b from an engine a and with the suction side l of a pump m by an outlet member g and a pipe j, the cross-sectional areas of which progressively diminish. The pump is connected with the boiler p by piping o, o<1> which may also have a diminishing cross-sectional area. A valve s in a bye-pass connection r between the exhaust pipe b and the cooler outlet member g is controlled by the pressure of the exhaust so that should tEe pressure and heat content of the steam-water mixture exceed a predetermined limit the valve partly closes and reduces the amount of steam bye-passed.
Patent GB-193300-A (GB)
Title: Improvements in and relating to alternating current dynamo electric machines
IPC: H02K17/36
Filed: 1922-03-18
Abstract: 193,300. British Thomson - Houston Co., Ltd., (General Electric Co.). March 18, 1922. Alternating-current induction machines ; machines with two or more armatures.-An alternating-current machine for use at higher driving or driven speeds than are usually possible with commercial supply frequancies has two armatures rotatable relatively to each other and to a third element and having their alternating-current windings so arranged that the relation between speed, frequency per second of supply f, and number of pole-pairs P in the windings is S=120f/P and S<1>=60f/P, where S is the relative difference in speed in revs. per min. between the two armatures at synchronism and S<1> that between the third element and either of the armatures at synchronism. The third element is a wound field structure in a synchronous type of machine and is a cage or wound secondary structure in an asynchronous machine. In the form shown, the casing supports a stationary bipolar armature 2 which is separated from a similar rotary armature 12 on the shaft 10 by a bipolar continuouscurrent field member 6 carried by a frame 5, journaled on the shaft at 9 and having poles each of which co-operates both with the inner and outer armatures. The field structure is adapted for high speeds by means of end bells 14 or the like and is energized through slip-rings 8 from an exciter 17, as shown in Fig. 5. The two armatures, which in the case shown generate three-phase current, are connected in reverse directions to common bus-bars 20 from which power is taken at 22. If the inner armature is driven at 7,200 revs. per min., i.e. a speed suitable for direct turbine drive, the magnet, when excited, will speed up to 3,600 revs. per min. and induce 60-cycle current in both armatures. If 60-cycle current is fed to the armatures, the field structure will rotate at 3,600 revs. per min. and the inner armature will run as a motor at 7,200 revs. per min. If leading currents are supplied to the machine the amount of continuous-current excitation may be reduced or it may be entirely dispensed with by making the field structure 6 of material with a permanent polarity. With a cage or wound asynchronous field member, the machine will act as an induction motor or induction generator. The outer armature may rotate and the inner one be fixed, or the field member mav be fixed while the armatures rotate in opposite directions. Alternatively to the concentric construction shown, the armatures may be mounted on either side of the field on a common horizontal axis.
Patent GB-768594-A (GB)
Title: Air-cooled two-stroke internal combustion engine having piston-controlled ports
IPC: F02F1/04
Filed: 1955-03-18
Abstract: 768,594. Construction and cooling of twostroke engines. KLOCKNER-HUMBOLDTDEUTZ AKT.-GES. March 18, 1955 [April 23, 1954], No. 7989/55. Class 7 (2). In a crank-case compression air-cooled twostroke engine with reverse loop scavenging between piston-controlled inlet and exhaust ports of a cylinder 1 longitudinally displaceably mounted in an engine housing 2, crankcase pump inlet ports 9 disposed in the cylinder on the sides thereof adjacent to and opposite the exhaust ports 10 open into a manifold 13 substantially surrounding the cylinder. As shown, bolts 7 support the cylinder 1 from a casing 5 itself bolted to the housing 2 and forming therewith a cooling air jacket. A rubber gasket 8 and shoulders 4 guide the cylinder 1 in the housing 2. The manifold 13 has an inlet 16 connected to a filter and is interrupted by fins 18 directed towards the exhaust ports 10. The cylinder 1 has a force-fit liner and transfer ducts 11. The engine may operate with mixture-compression or fuel-injection.
Patent GB-355273-A (GB)
Title: Improvements in water tube boilers and furnaces
IPC: F22B37/14
Filed: 1930-03-12
Abstract: 355,273. Water-tube steam boilers. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.-(Babcock & Wilcox Co. ; 85, Liberty Street, New York, U.S.A.) March 12, 1930, No. 8010. [Class 123 (ii).] Water-tube boilers having a number of steam and water drums are provided with furnace cooling water tubes and slag screen tubes arranged in sets comprising independent circulation systems each being fed by and delivering to one only of the steam and water drums. Water-tubes 21 extend across the top of a furnace between downtake and uptake headers 22, 20 which are connected to the water spaces of three drums 14, 15, 16 by nipples 23, 19. To enable water to circulate between the middle and outside drums some of the nipples are crossed so as to feed tubes leading to an adjacent drum. The outer drums communicate through pipes 35, 36 and 35<1>, 36<1>, respectively with headers 37, 37<1> near the bottom of the furnace and supplying slag screen tubes 38, 38<1>, the outer tubes of which are more inclined than the middle ones. A return connection with the outer drums is established by wall tubes 40, 40<1> and pipes supplying tubes 44, 44<1> which enter the drums at different heights. Branches 46 of the pipes 36, 36<1> feed headers 47, 47<1> supplying side wall tubes 48, 48<1> which are similarly connected through headers, pipes, and tubes 52, 52<1> with the respective outer drums.
Patent GB-724710-A (GB)
Title: Improvements in or relating to portable fuel storing and charging cartridge
IPC: F23Q2/52
Filed: 1953-03-24
Abstract: 724,710. Forcing liquids by gaseous pressure. RONSON ART METAL WORKS, Inc. March 24, 1953 [April 22, 1952], No. 8048/53. Class 102 (2). [Also in Group XI] The inner end of the nozzle 3 of a hermetically sealed portable fuel-storing and charging cartridge for fuelling cigar lighters and containing liquefied fuel such as butane under a body of pressurising permanent gas such as nitrogen, carbon dioxide, or air, is provided with a seating 19 adapted to receive, on discharge of the fuel by puncturing the diaphragm at the outer end of the nozzle 3 by the puncturing head 14 of the valve 12 of the lighter in its open position, a float 17 e.g. of "Buna-N" (Registered Trade Mark) synthetic cellular rubber pressed into engagement with the seating by the pressure of the permanent gas. In its closed position the valve forms a seal with the elastic washer 11.
Patent GB-722442-A (GB)
Title: Improvements relating to parachutes
IPC: B64D17/00
Filed: 1952-03-31
Abstract: 722,442. Parachutes. GREGORY, J. March 31, 1953, [March 31, 1952], No. 8116/52. Class 4. A parachute includes a canopy with a central vent and a number of shroud lines extending along the seams of the gores, and provided with a rigid ring or anchorage member inside and of much smaller diameter than the vent, to which the shroud lines are attached, each to the nearest portion of the ring or anchorage member. As illustrated by Fig. 3, the central vent is defined by webbing 13 sewn to the canopy gores 10. Each shroud line 14 is stitched to the webbing 13, looped'round the ring 16, knotted to itself by two half hitches 20, and sewn to itself as at 17, preferably ending as at 18 short of the webbing. The ring or anchorage member may be metal. The vent may or may not be closed after manufacture: When the number of shroud lines is such that their loops round the ring 16 are close together, they may be bound or stitched together in pairs near the ring.
Patent GB-271983-A (GB)
Title: Improvements in or relating to motor cycle and other road vehicle brakes
IPC: F16D51/22
Filed: 1926-03-26
Abstract: 271,983. Birmingham Small Arms Co., Ltd., and Hulse, F. W. March 26, 1926. Blocks and shoes acting on drums; blocks and shoes; compensating for wear.-Brake shoes for internal expanding brakes formed from sheet metal by stamping and piercing so as to produce a two-part ring of L-shaped cross-section are provided, with projections 4 for the attachment of the releasing springs 5, formed by suitably drilling, piercing and upsetting parts of the web 2 of the shoes. Blocks 11 each provided with a flange 12 for engagement with the radial edge of the web of the shoe are secured to the web to take the pressure of the cam 14. To permit adjustment of the clearance of the shoes, the pivot 8 thereof is adjustably secured in a circumferentially elongated slot 17 in the anchor plate by means of a serrated washer threaded on the pivot and forced against the anchor plate by a nut screwing on the shank 18 of the pivot. The shoes are made by first pressing a sheet metal blank so as to form the flange 1 and then piercing a central hole to leave the web part 2. A block is secured to the web of the ring and a hole drilled through the block and the web to provide the pivot bearing. The ring is then cut across diametrically to form the two shoes.
Patent GB-680792-A (GB)
Title: Improvements in or relating to arrangements for balancing axial thrusts on turbo-machine rotors
IPC: F01D21/08
Filed: 1947-03-26
Abstract: 680,792. Elastic-fluid turbines and compressors. SOC. RATEAU, and ANXIONNAZ, R. March 26, 1947 [April 29, 1946], No. 8243/47. Classes 110(i) and 110(iii) A balancing arrangement for axial thrust in either direction on the rotor of a turbine using gaseous or vapour fluid or of an axial or radial flow compressor, blower, supercharger, or pump (excluding liquid pumps), comprises a disc or drum b rigid with the shaft a and formed on each face with impeller vanes c working in separate chambers b<SP>1</SP>, b<SP>2</SP> the inlet to each of which chambers is provided by co-operating regions of the chamber walls and of the disc or drum whereby throttling passages are formed such that on the occurrence of any axial movement of the shaft a restoring thrust arises by a reduced throttling on one side of the disc or drum and an increased throttling on the other side of the drum or disc respectively causing increased and reduced pressures of a circulating balancing fluid (oil) on the; two sides of the disc or drum, the circulating balancing fluid being heavier than the fluid driving the turbine or handled by the compressor &c.. a throttling passage (which need not be variable) being provided at the discharge side of the chambers to ensure that an effective pressure is set up in the balancing space. The top half of the figure shows the disc or drum disposed in mid position while the bottom half shows it slightly displaced to the right. The inlet r<SP>2</SP> to the chamber b<SP>1</SP> is provided by a shoulder a<SP>2</SP>, formed in the shaft a, co-operating with a casing part; the discharge from the chamber b<SP>1</SP> is through a throttling passage n formed between the periphery of the disc or drum and part e on the casing. When the disc or drum moves to the right the inlet r2 is increasingly throttled while the inlet r' to the opposite-side chamber b<SP>2</SP> is opened out and thus a restoring thrust is given by the increase of pressure in the chamber b<SP>2</SP> and the decrease of pressure in the chamber b<SP>1</SP>. The Specification as open to inspection under Sect. 91, comprises also an arrangement Fig. 3 (Cancelled) in which an end thrust balancing disc b with vanes c on one side sets up pressure in a chamber provided with discharge openings k, l, m arranged at different radial distances and opened by valves h controlled by an altimeter so that the balancing and thrust (due to the heavy balancing fluid) is adjusted according to the ambient pressure of the air taken in by the axial-flow compressor &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-935713-A (GB)
Title: Improvements in or relating to driving attachments for road wheels of vehicles
IPC: B60K25/00
Filed: 1961-03-07
Abstract: 935,713. Securing together rotary parts. JOHNSTON BROS. (CONTRACTORS) Ltd., A. B. BONE, and A. D. COLLINS. April 11, 1962 [March 7, 1961], No. 8344/61. Class 80 (2). [Also in Group XXXI] A driving attachment detachably secured to the tyre carrying portion of a road wheel has means for centring the mounting relative to the wheel axis. A disc 20 has radial slots 21 receiving pins 27 and bolts 28 securing radially adjustable plates 22 to the disc. The plates 22 are rigid with L-shaped brackets 25 engaging one side of the wheel rim 14 and are secured to the rim by hook bolts 31. The plates are adjusted to centre the disc with respect to the wheel by a cam 34 mounted on a boss 33 of the disc. A threaded spindle 44, having a conical projection 45 to engage a centre drilling in the wheel hub, is screwed into the disc 20 and carries a threaded sleeve 47 to which is slidably keyed a sprocket 49 for the drive to a grit spreader. Alternatively a bevel gear and shaft may be used for the spreader drive. In modifications, the disc 20 may have a conical surface engaging the wheel rim for centring, the plates 22 may be moved by jacking screws and have graduations, or the hook bolts may have rubber centring bushes.