baber/WOPTO huggingface dataset:
Patent GB-915047-A (GB)
Title: Improvements in mixers
IPC: B01F27/91
Filed: 1960-04-12
Abstract: 915,047. Mixing fluids. PINTO, U. April 12, 1960 [July 15, 1959], No. 13059/60. Class 86. A mixing and emulsifying device for immersion in a body of material comprises a motor 16 secured by rods 3 to the housing 5 of a mixing head having a lower, frusto-conical, portion and an upper cylindrical portion. An impeller 7 having radial vanes 7<SP>1</SP> rotates with clearance fit in the frusto-conical portion of the housing 5 ; the vanes 7<SP>1</SP> are curved outwardly and forwardly in relation to the direction of rotation and there are similar but fixed and oppositely curved vanes 4<SP>1</SP>, 411 in the upper, cylindrical portion of the housing. Rotation of the impeller causes the material to be drawn in to the bottom of the housing and ejected at the top, setting up in the container a circulation which is aided by the adjustable deflector 11. The impeller shaft 1, 14 is adjustable for length to adjust the clearance of the impeller in the housing. The clearance between the top of the impeller and the underside of the fixed vanes may be controlled by making the latter a separate unit screwed into the housing 5, see Figs. 5 and 6 (not shown). Specification 777,271 is referred to.
Patent GB-1236912-A (GB)
Title: A method for the multiplication of electrical signals
Inventor: FOURNIER JACQUES MAURICE ARMAN
IPC: G01S7/35
Filed: 1962-04-04
Abstract: 1,236,912. Correlation circuits. SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. April 4, 1962 [April 6, 1961], No.13061/62. Heading G1U. [Also in Division H4] In a correlation radar system, a signal corresponding to the transmittron is multiplied by one corresponding to that of the receiver echo. The result is integrated to provide an indication of the coincidence of the two signals. The target range is measured by the magnitude of the combined signal. The delay of the transmission signal is varied to yield to maximum response and thus a measure of the range. The transmission signal is periodically reversed, prior to multiplication, by an oscillator of frequency different from that of the radar and is then applied to an A. C. amplifier to elliminate all but the product terms, detection, prior to integration, is effected at a frequency synchronous with that of the periodic reversal. The arrangement is stated to elliminate the feed for a D.C. amplifier and to reduce the number of filters required.
Patent GB-326390-A (GB)
Title: A new or improved combined reciprocating ironing machine and press for laundries
IPC: D06F69/04
Filed: 1929-04-27
Abstract: 326,390. Bell, r., and Watts, R. E. April 27, 1929. Ironing-machines with reciprocating iron and stationary tables; ironing-machines with pressing action only.-The iron 4, Fig. 1, is reciprocated over the work table 6 by means of a beam 5 linked to the iron and rocked about its pivot from a crank shaft 24 by the engagement of a head 21 in a slot 5<a> therein, the head being carried by a connecting-rod 20 driven by the crank 25. The stroke of the iron may be adjusted by means of a bell crank lever 22 and vertical link 23 which is pivoted to the head 21. The lever 22 engages a quadrant 22a to hold the head 21 in its adjusted position. The work table is carried by a vertically movable support 7 and is normally pressed upwardly to contact with the iron by means of an adjustable weight 16, Fig. 2, or by spring or pneumatic means. The weight 16 is slidably mounted on a lever arm 17 which is secured to a shaft 13 to which bifurcated lever arms 12 are also secured. Legs 8, Fig. 1, depending from the support 7, are provided at their lower ends with spindles 10 which are supported in apertures in the free bifurcated ends of the lever arms 12 and are guided in slots 9<a>, Fig. 2, in bosses 9 in which the legs 8 slide. The weight is moved along the lever 17 and held in adjusted position by means of a, lever 19. The work support may be lowered against the weight by depression of a treadle 14 carried by lever arms 15 secured to the shaft 13. The machine may function as a press when the iron is stationary.
Patent GB-437615-A (GB)
Title: Improvements in or relating to the manufacture of alkali metal cyanides
IPC: C01C3/10
Filed: 1934-05-01
Abstract: A mixture of alkali metal cyanide and calcium carbide, obtained by reacting alkali metal, calcium cyanamide and carbon at elevated temperature, is reacted with water or aqueous sodium carbonate, acetylene being produced.ALSO:Alkali metal (e.g. sodium, potassium or lithium) cyanides are obtained by heating together alkali metal, calcium cyanamide and carbon, at least three atoms of carbon being present to each molecule of calcium cyanamide and the reaction temperature being such as to cause reaction between the liberated calcium and carbon to form calcium carbide.  Temperatures of 700--1000 DEG  C. may be employed.  Crude calcium cyanamide may be employed, its carbon content forming a part of that necessary for the reaction.  Wood charcoal may be employed as the additional charcoal. According to an example sodium is placed in the bottom of an iron reaction vessel, a mixture of crude calcium cyanamide and wood charcoal being placed above it.  The vessel is heated in a molten lead bath having an initial temperature of 791 DEG  C., but rising to 923 DEG  C. Sodium vapour permeates the mass and reacts.  The product may be treated with water or aqueous sodium carbonate to produce a solution of sodium cyanide with the evolution of acetylene.  When employing lower temperatures, sodium is mixed in the solid or liquid form with the other reactants.
Patent GB-131877-A (GB)
IPC: C21C7/00
Abstract: 131,877. Kissock, A. Aug. 28, 1918, [Convention date]. Alloys.-A metal such as tungsten, chromium, molybdenum, or vanadium is introduced into steel by adding to the molten steel a salt such as a tungstate, chromate, molybdate, or vanadate of an alkali or alkaline earth metal such as cal. cium, the reduction of the salt being effected by carbon, silicon, or other element which may have been previously present in the steel. Reference has been directed by the Comptroller to Specifications 3477/72, 1192/75, 3043/75, 793/79 and 131,896.
Patent GB-378485-A (GB)
Title: Improvements in or relating to hair brushes
IPC: A45D20/48
Filed: 1931-05-05
Abstract: 378,485. Electric and other brushes. THORNE, R., 114, City Road, London. May 5, 1931, Nos. 13303 and 33050. [Class 81 (ii).] In brushes having a detachable bristlemount, the back or stock is recessed to receive the bristle element which is retained by one or more portions on one of the parts, projecting laterally therefrom and engaging one or more recesses in the other part, and by a projecting lug on said element through which passes a screwed member projecting laterally into the recess in the back or stock. By making some or all of the bristles conducting, the brush can be used for applying electricity. A stock 10, preferably of insulating material and having a handle 11, is recessed so as to form a peripheral flange 12 and has a further recess 13 for a dry battery 15. A ledge 22 receives the inner edge of a bristle-mount 17 having a tongue 18, which enters an undercut recess 19 in the stock, and an apertured lug 20 which may be screw threaded and which receives a screw 21 screwed into a bush 16 let into the flange 12. Two rows of tufts, formed of or including conducting wires, are preferably separated by one or more rows of ordinary bristles, and are connected by wires or the like, one row being in contact with the spring terminal 26, the other with the terminal 27, of the battery. A switch of any form may be fitted, such as a slidable rod 33 having a bent metal cam 36 co-operating with the terminal 27 on manipulating the head 34. The rod is guided in lugs 32 formed on a metal plate 28 held in the recessed back by spring flanges 29 which engage the flange 12. This plate is apertured at 30 to receive the battery which is retained by lugs 31. The battery may be dispensed with, and the bristles connected to an exterior source of power by a cable traversing a hollow handle. According to the first Provisional Specification, the bristle-mount may comprise two metal halves separated by a projecting rib on an insulating backing. Pins projecting through the backing are connected to the battery. The invention is not restricted to brushes having detachable bristle-mounts.
Patent GB-1387432-A (GB)
Title: Method of moulding a synthetic plastics article
IPC: B29C33/02
Filed: 1972-03-22
Abstract: 1387432 Moulds MASCHINENFABRIK HENNECKE GmbH 22 March 1972 [24 March 1971] 13338/72 Heading B5A The latent heat required to change the physical state of material 15 contained in chambers 14 adjacent a mould cavity 12 is utilized to ensure that the temperature of a casting or injection mould 5 is kept below and/or above a predetermined value during moulding. The mould may contain one material which melts or sublimes to define an upper temperature limit and another material which solidifies or condenses to define a lower temperature limit. A liquid 17 of lower specific gravity than a molten material 15 may be provided in bores 16 to improve heat transfer and/or prevent oxidation of the material 15. The latter may comprise an inorganic or organic compound, e.g. paraffin having a melting point of 54 C., a metal or an alloy formed from bismuth, tin, lead, cadmium, indium, antimony, and zinc, e.g. Wood's metal. Polyester resins, epoxide resins, silicone rubbers or polyurethanes which may be foamed may be moulded by exothermic or endothermic reactions in the mould 5. The latter may comprise hinged halves 9, 10 provided with an inspection window 18 and four cylindrical chambers 14. Several moulds 5 may be mounted on an endless belt (6, Fig. 2), preheated to 63 C. by external heaters (7), filled with isocyanate (1) and polyol (2) components via a metering and mixing head (3, 4), and then kept at 65 C. during the exothermic formation of the polyester by the melting of Wood's metal (of melting point 65 C.) in the chambers 14.
Patent GB-573408-A (GB)
Title: Method of removing oil from water
IPC: B01D17/02
Filed: 1943-08-17
Abstract: 573,408. Removing oil from water. SHELL DEVELOPMENT CO. Aug. 17, 1943, No. 13347. Convention date, Sept. 22, 1942. [Class 46] [Also in Group XXI] Oily impurities are removed from water by contact with an inert solid presenting large surfaces and having deposited thereon a cation surface active bonding agent for the solid and the oily impurities, the cation of such bonding agent containing at least eight carbon atoms in a single carbon chain in which the carbon atoms are not interrupted by other elements. An anion surface active bonding agent may be used additionally. Sand, silt, clay, limestone, silica, glass dust, metal filings, fibre, chaff, straw, may be used as the inert body which should be in particles of less than -inch diameter and containing a sufficiency of "fines." For the bonding agent there may be used amines or quaternary ammonium, phosphonium, arsonium, stibonium, or ternary sulfonium bases or salts thereof, all of which bases should contain at least eight carbon atoms in a single carbon chain in which the carbon atoms are not interrupted by other elements and should preferably contain one long chain aliphatic radical of eight or more carbon atoms. Oily impurities present in less than one per cent. are removed. Various examples are given in the Specification. If the bonding agent is insoluble in water it may be deposited by vaporization and condensation on the inert solid. The water to be treated may be passed through a filter bed of the coated solid, shaken up with solid, or a slurry of the solid and the water may be passed through a section of pipe. Where a film of oil on a body of water is to be removed the coated solid may be sprayed on the water either dry or as an aqueous slurry. The separation of the oilcoated solid from the treated water may be effected by filtration, centrifuging, decantation, or settlement. The oil may be recovered from the coated solid or removed by burning. The invention may be applied for the prevention of fire by sinking any oil layer in harbour waters, harbour mud being used for the inert solid and treated with the bonding agent and the slurry ejected through a nozzle.
Patent GB-455561-A (GB)
Title: Improvements relating to the production of articles from mouldable material
IPC: B29D1/00
Filed: 1935-05-04
Abstract: 455,561. Screw-cap stoppers &c. HOPF PRODUCTS, Ltd., and HOPF, P. A., 19, Great Prescot Street, Whitechapel, London. May 4, 1935, No. 13370. [Class 125 (iii)] [See also Group V] A cap 1 for scent bottles or other articles is provided with a projection 1<1> on its top with a transverse hole 1<11> therethrough for securing a cord or tassel. The hole 1<11> is formed during moulding by forming a passage through the top of the cap and into the projection. The cap may be screw-threaded and made from synthetic resin. There may be one or more projections and one or more holes in the, or each, projection. Specification 408,919 is referred to.
Patent GB-156044-A (GB)
Title: An improved construction of hollow handle for saucepans, coffee pots, coal shovels and like utensils
IPC: A47J45/06
Filed: 1920-05-15
Abstract: 156,044. Robinson, F. May 15. 1920. Handles.-The tubular part d of the handle of a saucepan, coffee-pot, coal shovel, &c. is fastened to a seuring-plate a by means of a bent metal strip b, which is riveted or soldered to the plate a and has its ends e soldered or otherwise secured to the handle. A stiffening-piece l may engage grooves i formed by bending over the edges of the strip b. The handle may be further secured to the plate a by soldering at h; the solder being allowed to flow into the handle and secure the strip b to the plate a. The end of the part d is closed by a cap f or by an extension forming a non-conducting hand-grip. The plate a may be detachably secured to the body of the vessel.
Patent GB-646139-A (GB)
Title: Improvements in or relating to electric soldering irons, welding tools, or the like
IPC: B23K3/03
Filed: 1947-05-20
Abstract: 646,139. Friction-grip fastenings. RUBERT, M. P. May 20, 1947, No. 13476. [Class 44] Also in Group XXII] A socketed holder for a welding electrode or soldering bit is formed with a cylindrical end surface eccentric to the socket and co-operating with a collar fitting the surface and having a hole of corresponding eccentricity, so that by turning the collar the holes may be brought into alignment for inserting the tool and turned out of alignment to secure it. The electrically heated head a of a soldering iron, which has a socket b to receive the bit d, is formed with a cylindrical rim e eccentric to the socket on which can turn a knurled flanged collar g provided with a hole h of equal eccentricity. The collar and head have index lines j, j<1> which register in the free position of the collar. The flange of the collar may have a rivet engaging in an annular groove in the rim, an entry groove being provided diametrically opposite the rivet in the normal face position of the collar boss. Instead of a flange, the collar may have an eccentric boss fitting into an eccentric recess in the socket.
Patent GB-556538-A (GB)
Title: Improvements in or relating to differential pistons
IPC: F04B1/04
Filed: 1942-09-25
Abstract: 556,538. Differential piston pumps. HIGGINS, C. C., and EYRE SMELTING CO., Ltd. Sept. 25, 1942, No. 13497. [Class 102 (i)] In a differential piston pump the hemispherical end 111A of a smaller diameter piston 111 is held by a spring 113 directly against the end of a larger diameter piston 109 which is operated by a cam 137. The inlet passage 101C has a suction valve 117 and is connected by a passage 101E to the spring chamber 101F. The outlet passage 101D has delivery valves 117A, 125 and a lateral air passage 121 for priming purposes. Specification 567,037 is referred to.
Patent GB-135648-A (GB)
IPC: F41A3/82
Abstract: 135,648. Halse, S. C., Westover, G., and Carver, T. A. B. Dec. 11, 1918. Machine guns.-Relates to fusee springs of the kind which are compressed during the recoil, and consists in connecting the spring to the fusee by a rod which alone changes the line of its axis during operation. The spring d may be supported by a tube f fixed at its ends in brackets g, g<1> on the gun casing, and is compressed by a rod c working within the tube and connected at its rear end to the fusee chain b and at its front end, by a ball-joint h, to the spring-compressing member i, which is constrained to move in guides k in the tube f.
Patent GB-1392831-A (GB)
Title: Apparatus for validating keyboard originated character repre senting indicia signals
IPC: G06F3/02
Filed: 1972-03-23
Abstract: 1392831 Electric selective signalling GENERAL ELECTRIC CO 23 March 1972 [23 April 1971] 13570/72 Heading G4H In apparatus for validating character-representing signals from a keyboard 10 in preparation for recording by a printer or tape recorder, data is passed from an input register 12 to a final register 14 for processing only after it has been established by detection circuits 16-18 that one and only one key has been pressed and that the characters in registers 12, 14 are different. If these conditions are met, gates 11 are blocked by a signal 22, and gates 13 are enabled by a signal 23 as soon as the data already in 14 has been processed; after transfer, registers 12, 14 have the same contents, detection of which causes circuit 18 to reverse signals 22, 23 so as to introduce fresh data to register 12. Violation of one or more of the above conditions (caused by contact bounce or operator tremble for example), is detected by circuits 16-18, the resulting signals 22, 23 then serving to block the transfer of data to register 14 and to allow the input of fresh data to register 12. The above arrangement will, interalia, prevent a character being wrongly duplicated : successive recording ot the same character (requiring 80 msec.) is. effected by means of a time delay 19 (of 30 msec.,) actuated by the NO KEY detection circuit 17, which clears register 14 and thus ensures that CHARACTER SAME circuit 18 cannot hinder the second recording of the character. The output from keyboard 10 may be in 7-bit binary form (see Specification 1,228,280), and is fed in direct and complemented form to direct and complementary parts IT, IR, Fig. 6, (not shown), of register (12), outputs from which are fed to NAND gates forming circuits 16, 17 and, with outputs from 14, to AND and NOR gates forming circuit 18. In an alternative embodiment (Fig. 8, not shown), in which the keyboard output signals are continuously available as long as a key is depressed, gates 11 and register 12 are omitted,
Patent GB-920468-A (GB)
Title: Method of manufacturing composite metal wires
IPC: B23K20/04
Filed: 1961-04-17
Abstract: 920,468. Making composite wires; welding by pressure; broaching. HITACHI DENSEN KABUSHIKI KAISHA. April 17, 1961 [Sept. 7, 1960], No. 13704/61. Classes 83 (2), 83 (3) and 83 (4). A method of making a composite metal wire comprises coating a metal core with a thin layer of a metal different from and having a greater diffusion coefficient to either of the said two metals constituting the core and outer layer of the composite wire than the coefficient between the said two metals, pressure welding while the metal wire is heated to a temperature below its recrystallization temperature a metal band shaped around the core wire by passing through sets of forming and press rolls thereby integrally bonding the outer band to the core wire. Zinc galvanized steel, nickel or tunsten wire 10 wound on a bobbin 12 is passed through guide rolls 13, rotating wire brushes 14 and electrically heated to 200‹ to 250‹ C. between the electrode rolls 15, 16. Aluminium tape 20 wound on a reel 21 is passed through g ide rolls 22, semicircular forming rolls 25, rotating wire brushes 24 and together with the steel wire through forming rolls 30, 40 to completely enclose the steel wire. The temperature of the aluminium tape in contact with the steel wire is raised to 150‹ to 180‹ C. and the steel wire to 200‹ to 250‹ C. and the composite wire passed through the cold pressure welding rolls 50 and the cutting rolls 60 on to a winding drum 80. The wire is finally sized by drawing through a finishing and stripping die 70. In a modification copper, copper alloy or aluminium alloy tape may be used. Various welding pressures, temperatures, material thicknesses, speeds and test results of the mechanical properties obtained are given in the Specification. U.S.A. Specification 2,707,889 is referred to.
Patent GB-528917-A (GB)
Title: Improvements relating to the waterproofing of tunnels and underground chambers
IPC: E21D11/38
Filed: 1939-05-08
Abstract: 528,917. Waterproofing buildings &c. PRODORITE, Ltd., and ANDREWS, W. J. May 8, 1939, No. 13724. [Classes 20 (ii) and 20 (iv)] [Also in Group XXI] Tunnels and underground chambers, such as hangars, shelters, cellars and vaults, are waterproofed by applying thereto juxtaposed layers of bituminous composition and of concrete or cementitious material, both applied by gunning, respectively resisting water penetration and retaining and reinforcing the bituminous composition. In a brick &c. lined tunnel &c. pegs, bolts &c. may be grouted into the lining at intervals, and the lining coated with a quick-drying, asbestos-filled, aqueous bituminous emulsion. A continuous layer of bitumen is then applied by gunning while heated, reinforcement such as wire mesh is fixed to pegs &c. and a thick layer of concrete &c. is applied by spraying or gunning. For an underground or partly buried chamber, corrugated &c. plates are assembled in arched &c. form, and coated before or after assembly with spirit-bound bituminous solution, the seams being caulked with bitumen, and a layer of hot bitumen then applied by gunning ; concrete, with or without reinforcement, is then applied by gunning to bury the corrugations if any, and the whole may then be covered with earth. A suitable bituminous composition comprises, by weight, 48 parts of inert mineral filler such as slate powder or hydrated lime, 24 parts refined Trinidad bitumen and 28 parts refined oxidized bitumen. Specifications 432,831, [Group XXIX], 473,184. [Group V], and 526,649, [Group XXIX], are referred to.
Patent GB-1199997-A (GB)
Title: Improved Electrical Cables
Inventor: ROBINSON HENRY WILLIAMSON HARC
IPC: H01B3/44
Filed: 1968-03-21
Abstract: 1,199,997. Sealing cables. MONSANTO CHEMICALS Ltd. 20 Feb., 1969 [21 March, 1968], No. 13763/68. Heading H1A. An electric cable comprises a gelatinous water-barrier material in contact with a poly. olefin resin component such as a sheath or a dielectric manufactured to contain a minor proportion of the barrier material. The polyolefin may comprise a polymer or copolymer of hydrocarbon e.g. polythene, as such or with a small proportion of a nitrile, halide or an ester and have a melt index preferably less than 2. The barrier material melts between 25‹ C. and 80‹ C. and has a boiling point at normal pressures greater than the highest temperature encountered in processing the polyolefin resin, and could be a hydrocarbon e.g. a paraffin or mixture of paraffins such as petroleum jelly. The polyolefin and the barrier material are preferably mixed and may contain other components e.g. carbon black, lubricants and the resin mixture normally extruded through an annular die while feeding a bundle of conductors with cellular insulation together with further barrier material.