baber/WOPTO huggingface dataset:
Patent GB-1260230-A (GB)
Title: Apparatus for grinding material supplied from a reel
Inventor: OLIVOTTO VIRGILIO
IPC: B24B5/38
Filed: 1969-04-10
Abstract: 1,260,230. Grinding. V. OLIVOTTO. 10 April, 1969 [12 April, 1968], No. 18336/69. Heading B3D. An apparatus B for grinding round material supplied from a roll A comprises a fixed framework 1, a unit 6 mounted for rotation about an axis parallel to the direction of advance of the material to be ground, and at least one pair of rotating grinding wheels 4 supported by the unit. The material to be ground is supplied from the roll A through a straightening device D to the apparatus 3 from which it passes through a winder E to form a roll C. A unit F is provided if the apparatus is to grind bars. The unit 6 consists of a drum mounted in supports 5 in the framework and rotated by a belt on pulleys 10, 15 from a motor 8. A second motor 7 drives a pulley 9 connected by a belt to a pulley 11 secured to a pulley 12 which through further belts drives a pair of pulleys 13 on opposite sides of the axis of the drum. Each of the pulleys 13 is connected by belts to separate pulleys 14 on the shafts of the grinding wheels which are thereby rotated independently of the drum. The shafts of the grinding wheels are eccentrically mounted in members 19 which are rotatably adjustable in unison to adjust the grinding wheels to the diameter of the material being ground and to compensate for wear of the wheels. The adjustment is effected by a differential gear unit which is operable by a motor 33 or by hand 37 either when the drum is stationary or rotating. The feed of the grinding wheels may be effected by a pneumatic system 40 which drives the differential unit and receives impulses from an electronic comparator. A pump 3 supplies an emulsion in the base of the framework to a rotary joint 42 on the shaft of the drum and through pipes 43 to the grinding wheels and guides 45 for the material.
Patent GB-568843-A (GB)
Title: Antiskid pneumatic tire and method of making same
IPC: B60C11/20
Filed: 1943-11-04
Abstract: 568,843. Wheel tyres, pneumatic. WINGFOOT CORPORATION. Nov. 4, 1943, No. 18337. Convention date, June 12, 1943. [Classes 144 (i) and 144 (ii)] [Also in Group V] A pneumatic tyre comprises a resilient tread with short helical springs embedded therein, with their cylindrical sides substantially flush with or slightly protruding beyond the tread surface. The rows of springs 14, Fig. 18, may be circumferential, transverse or diagonal and are sewn to a green tyre comprising a fabric-ply carcass 26 having an outer rubber layer 27. The springs are made of brass-plated steel wire with square ends and are assembled in a hardrubber mould with close-spaced parallel grooves of half-round cross-section. A thin sheet 16, Fig. 16, of green rubber is then placed on the springs and put in a press. The sheet with the attached springs is then reversed in the mould and another thin sheet 20 of green rubber pressed on to form a complete tread section. The sheets 16, 20 may be coated with a layer of rubber cement 30, 32, and the tyre is then vulcanized, the tread being buffed until the springs protrude slightly. In a modification, sheet 20 is covered with a thin layer 38 of non- wear-resisting rubber which rapidly wears off in service to expose the springs. The tread sections are assembled to form a complete tread, or the tread may be made in one length. Spaces may be provided in the mould longitudinally between adjacent or alternate springs and if the tread is patterned, the corresponding springs are pressed into the rubber layer of the original green tyre without losing their round shape.
Patent GB-1408883-A (GB)
Title: Production of tio2-layers by vapour deposition
IPC: C23C14/00
Filed: 1974-04-26
Abstract: 1408883 Vapour depositing titanium oxides BALZERS PATENT & BETEILIGUNGS-AG 26 April 1974 [21 May 1973] 18353/74 Heading C7F In the vapour deposition of a titanium oxide on a substrate of e.g. glass, in an oxidizing atmosphere the composition of the melt corresponds to a ratio of 1.6 to 1.8 of the number of oxygen atoms to the number of Ti atoms.
Patent GB-1285658-A (GB)
Title: Method of neptunium recovery in the reprocessing of spent nuclear fuels
IPC: C01G56/00
Filed: 1970-04-17
Abstract: 1285658 Neptunium recovery KERNFORSCHUNG mbH GES FUR 17 April 1970 [17 April 1969] 18407/70 Heading G6R In order to recover neptunium together with uranium and plutonium in the multi-stage countercurrent extraction of a nitric acid solution of spent nuclear fuel with a phosphoric acid ester (e.g. tributyl phosphate), an oxidizing agent for the neptunium is added to one of the final stages before the discharge of the aqueous phase. Suitable oxidizing agents are solutions containing pentavalent vanadium, hexavalent chromium, or tetravalent cerium.
Patent GB-1135430-A (GB)
Title: Method and apparatus for the production of shaped articles
IPC: B29C31/08
Filed: 1966-04-27
Abstract: 1,135,430. Moulding fibre-reinforced resinous articles. DOW CHEMICAL CO. 27 April, 1966 [29 April, 1965], No. 18481/66. Heading B5A. In a continuous method of moulding reinforced resin bodies porous preforms e.g. glass fibre preforms, are subsequentially impregnated with a predetermined quantity of resin and positioned in a compression mould from which each moulded article e.g. a tray, table top, seat or flower pot, is removed. The impregnation is effected by two nozzles 63, 64 supplied from a metering unit 52 and moved over the preform in guides 68, 69a to distribute the resin in a predetermined pattern. The movement of the preform from the supply conveyor 16 to the impregnation station 13 and to the compression mould 14 is effected by the action of two sets of interdigitated tines 26, 40 and a reciprocable stop 44 controlled by pnuematic cylinders 28, 32, 33, and 36. The moulded article is removed from the press by a reciprocable shoe 85 which carries a vacuum line detector 86, which controls a switch in the electro-pnuematic control circuit, the arrangement being such that the process continues only if the shoe 85 picks-up a moulded article. The nozzles and the piston of the resin metering unit may be coupled by rack-and-pinion gearing, Selsyn motors being interposed if desired. The resin may be an alkyd resin mixture or a polyester mixture.
Patent GB-166236-A (GB)
Title: Process for the polymerisation of unsaturated fatty acids
IPC: C08F20/64
Filed: 1919-07-25
Abstract: Unsaturated fatty acids to be polymerized are converted into alkali salts free from glycerine, and these salts are boiled with caustic lyes, such as caustic soda of 10-20 B<\>ae. to settle out albuminuous and other impurities, precipitated out with common salt, heated in an autoclave at 180-214 DEG  C. for at least 3 hrs., and afterwards concentrated at constant pressure until the soap contains at least 75 per cent of fatty acids, and then heated in the closed autoclave at 180-214 DEG  C. until the desired degree of polymerization is obtained.  The purification of the alkali salts admits of lower temperatures being employed so that fish, oils, refuse oils, and other impure oils can be treated satisfactorily.  Reference has been directed by the Comptroller to Specification 141,720.
Patent GB-617786-A (GB)
Title: Improvements in or relating to silver plating
IPC: C25D3/46
Filed: 1946-06-20
Abstract: 617,786. Electroplating. STANDARD TELEPHONES & CABLES, Ltd., WOLFSON, H., and THOMPSON, B. June 20, 1946, No. 18557. [Class 41] An electrolyte of the cyanide type for silverplating contains both potassium nitrate and selenium. The potassium may be wholly or partly replaced by sodium. Between 100 and 150 grams of potassium nitrate or the equivalent quantity of sodium nitrate may be used with .2 to .6 grams per litre of selenium in the form of potassium or sodium selenite. An example of an electrolyte contains per litre 40 grams silver cyanide, 55 grams potassium cyanide, 100 grams potassium nitrate, and 1 gram potassium selenite. In a modification the amount of potassium nitrate is 150 grams.
Patent GB-361273-A (GB)
Title: Apparatus for lining bearings with bearing metal by centrifugal casting
IPC: B22D19/08
Filed: 1931-06-26
Abstract: 361,273. Casting composite articles. GOLDSCHMIDT AKT.-GES., T., 18, Salkenbergsweg, Essen, Germany. June 26, 1931, No. 18584. Convention date, July 14, 1930. [Class 83 (i).] Casting-machines.-In order to line a bearing o by centrifugal casting it is clamped between an annulus k, connected by bolts i to a driven disc h, and a disc m movable axially by a screw spindle e which can be locked by a hand-wheel g. The bearing is held central by rings n, n<1>. Molten metal is poured through the opening l, which is the same size as the internal diameter of the unmachined lining, any surplus metal being caught by a protective casing.
Patent GB-1371250-A (GB)
Title: Character-scanning device
IPC: G06V10/20
Filed: 1972-04-21
Abstract: 1371250 Character recognition systems ARTHUR KLEMT KG 21 April 1972 [23 April 1971] 18679/72 Heading G4R A character to be recognized is scanned by an array of photo-cells whose outputs are connected to resistor networks. The character field is regarded as being divided into a rectangular matrix of n x m elementary areas. The resistor networks receive signals from 9 groups of areas arranged as a 3 x 3 matrix. In the case of 6 x 3 areas, each signal represents the sum of the intensity of the light received from a respective pair of the elementary areas. Thus group A corresponds to areas 1 and 4, group B to areas 2 and 5, &c. The pairs of areas may be viewed by 9 respective light guides whose entry faces are shaped to view the respective areas, their exit faces being directed to corresponding photocells. Alternatively the photo-cells themselves may be so shaped that each views two areas, or each area may be viewed by a respective photocell, pairs of cells being connected in parallel to provide the 9 signals to the recognition circuits. Because of the effective size of the groups of areas A-J the system is tolerant to off-centred characters, Fig. 6 (not shown).
Patent GB-357538-A (GB)
Title: Salt bath for annealing metal articles
IPC: C21D1/46
Filed: 1930-06-19
Abstract: A molten salt bath for annealing metal articles comprises common salt, sodium or potassium carbonate and potassium sulphate in such proportions that the proportion of sodium to potassium in the mixture is not greater than 1.  Up to 6 per cent of borax or sodium phosphate and up to 10 per cent of the carbonates or oxide of alkaline-earth metals including magnesium may be added to the mixture.  Examples of the bath are: 41 per cent of common salt, 48 per cent of potassium sulphate and 1 per cent of sodium carbonate; 30 per cent of common salt, 44 per cent of potassium sulphate, 21 per cent of potassium carbonate and 5 per cent of borax.
Patent GB-347948-A (GB)
Title: Improvements relating to devices for filing papers and the like
IPC: B42F13/26
Filed: 1930-06-19
Abstract: 347,948. Loose-leaf binders. POL REGISTRATOR CIE, 197, Fischelnerstrasse, Krefeld, Germany. June 19, 1930, No. 18755. Convention date, June 28, 1929. [Class 146 (i).] In loose-leaf binders comprising opposed sets of prongs d<1>, d<2> of which one set d<1> is freely pivoted on a baseplate b and the other set d<2> is controlled by a spring f tending to close the prongs, the set d<2> is moved to open position by a lever and retained in such position by a catch. The pivot rods el, e<2> of the prongs are formed with cranked parts n, o respectively which overlap in the closed position of the file with the part n underneath and are retained in such position by the spring f coiled on the rod e2. In order to open the file, a lever s having its nose engaging beneath the part o is depressed and lifts the part o. A pivoted catch p moves into position beneath the part o under the action of a spring k to hold the prongs d<2> in the open position. After the lever s has been moved a certain distance, a stop w thereon engages a subsidiary lever v adapted to operate on the part n and move the prongs d<1> farther away from the prongs d<2>. To close the file, the prongs d<1> are moved back to their normal position and the part n engages a sloping part p<1> on the catch p so as to force the catch back and allow the loop o and prongs d<2> to return to normal position under the action of the spring f.
Patent GB-1087738-A (GB)
Title: Process for the production of continuously cast steel billets and/or slabs
Inventor: TREPPSCHUH HELMUT
IPC: C21C7/04
Filed: 1964-10-19
Abstract: Fully killed steel is mixed with solid slag in a tundish so as to flush out from the molten steel non-metallic compounds by the cooling effect of the slag on the melt, and thereafter separating the floating layer of at least partially liquefied slag containing the said non-metallic compounds from the molten steel in the tundish prior to continuously casting.  The height of the tundish is greater, preferably three times, its diameter to achieve better mixing.
Patent GB-1387980-A (GB)
Title: Method and apparatus for making sacks and bags which are folded to a fraction of their length
IPC: B31B50/56
Filed: 1973-04-18
Abstract: 1387980 Seaming non-metallic sheet material WINDMOLLER & HOLSCHER 18 April 1973 [12 May 1972] 18803/73 Heading B5K [Also in Division B8] Thermoplastic sheets S in flattened tube form are welded along their leading edges to form bags by welding beams 6 on a cylinder 1 which also carries folding blades 8 behind each pair of welding beams (e.g. by a distance of half a bag length, and each flattened bag is stripped from the cylinder 1 and simultaneously folded transversely in two by folding tongs 11 co-operating with the blades 8 and mounted on a drum 3, which deposits the folded bag on a stacking table 4. For providing a second fold, a further pair of folding tongs 13 is provided on the drum 3 behind each pair of tongs 11 to co-operate with a folding blade 14 on a drum 5 (e.g. to fold the bags into four. Alternatively, the blades 8 and tongs 13 may be positioned so as to fold the bags into three.
Patent GB-812098-A (GB)
Title: Improvements in and relating to water sprinkler systems
Inventor: ALLEN GEORGE
IPC: A62C35/60
Filed: 1957-06-14
Abstract: 812,098. Fire - extinguishing apparatus. HALL & CO. Ltd., M. June 14, 1957, No. 18825/57. Class 47 In the control device of an exhauster valve of a pressurized dry pipe water sprinkler fire extinguishing system, a differentially acting pressure actuated member 13 operates, upon reduction of pressure in the system, to open a cut-off valve 24 which admits pressure to a pressure responsive element 20 by means of which the exhauster valve 5 is opened, the member 13 being mounted in a balance chamber and communicating with the system on one side B directly and on the other side A through a restriction valve 16 which has means whereby on displacement of the member 13 to open the cutoff valve, the rate of flow through the restriction valve is reduced. The restriction valve 16 is mounted in the diaphragm 13 and includes a spring loaded needle valve 30, Fig. 2, which at its lower end is adapted to engage a cam face 29 on the operating lever 25 of the cut-off valve 24 so that the displacement of the diaphragm 13 serves both to open the cut-off valve 24 and to move the needle valve 30 towards its closed position.
Patent GB-245026-A (GB)
Title: Improvements in cartridge-feed mechanism for machine-guns, automatic ordnance, and automatic small-arms
IPC: F41A9/30
Filed: 1925-07-24
Abstract: 245,026. Vollmer, H. July 24, 1925. Machine guns; cartridge magazines.-A cartridge magazine and feed mechanism comprises a drum magazine h and a star wheel d mounted to project into a gap in the periphery of the drum. A spring-pressed arm k pushes the cartridges p towards the rotating star wheel, which feeds them through an aperture z in the magazine to the gun.
Patent GB-940624-A (GB)
Title: Improvements in or relating to the manufacture of flour
IPC: B02C11/08
Filed: 1960-05-30
Abstract: 940,624. Manufacturing flours. J. NARA. May 30, 1960, No. 18992/60. Heading A2 Q. In a process for milling grain, such as wheat, to produce various flours, such as flour containing only embryos, flour substantially free from embryos and bran and flour consisting of bran, the grain is lightly crushed in an impact pulverizer 1P, Fig. 1, and passed through a series of sifters 1S 2S, 3S, 4S, 5S and LS having sieves with 120, 60, 50, 40, 30 and 16 meshes per square inch respectively. The unders from sifter 1 constitute a refined flour # 1-1. The unders from sifters 3S, 4S and 5S are passed, respectively, to air separators AS1, AS2 and AS3 to yield bran-free flour. The unders from sifter LS are passed to an air separator AS4 to yield a bran-free flour rich in embryos, which is crushed in a roller pulverizer RP and sifted in a rotating or vibrating sifter RS to yield, as overs, a flour containing only compressed embryos and, as unders, a bran-free flour. The latter and the bran-free flour from air separators AS1, AS2 and AS3 are passed through another impact pulverizer 2<SP>1</SP>P, a 120-mesh sifter 6S and a 100-mesh sifter 7S. The unders from sifter 6S constitute a refined flour # 1-2. The unders from sifter 2S and the overs from sifters LS and 7S are passed through an impact pulverizer 2P and a 100- mesh sifter 8S to yield, as unders together with unders from sifter 7S, a refined flour # 1-3. The overs from sifter 8S are passed through a series of sifters 9S, 10S and 115 having sieves with 60, 40 and 30 meshes per square inch respectively. The unders from sieves 10S and 115 are passed through two air separators AS, an impact pulverizer 3<SP>1</SP>P and a 120-mesh sifter 12S to yield, as unders, yet another refined flour # 1-4. The overs from sifters 11S and 12S together with the unders from sifter 9S are passed through an impact pulverizer 3P and a 100-mesh sifter 13S, the unders from which constitute a flour # 2a. Coarse flours from all the aforementioned air separators are conducted, as indicated by the broken lines, through a cyclone collector CY and fed, together with overs from sifter 13S, through an impact pulverizer 4P and a sifter 14S, the unders from which constitute a flour # 2b. The overs from sifter 14S are passed through a sifter 15S to yield, as overs bran LB. The unders from sifter 15S are passed through an impact pulverizer 5P and a sifter 16S to yield, as overs, powdered bran SB and, as unders, a refined flour #3. Each sifter may be constructed, as shown in Fig. 3, with a jacket 7, a sieve 8, an axle 9 carrying radial arms 10, a motor 11 which rotates the axle, an inlet 12, an outlet 13 for overs and an outlet 14 for unders. Each air separator may be constructed, as shown in Fig. 4, with a jacket 15, a blow-up pipe 16 for a mixture of flour and air, an outlet 17 for flour subjected to high air resistance and an outlet 18 for flour subjected to low air resistance.
Patent GB-569551-A (GB)
Title: An improved gripping device of the pliers type
IPC: B25B13/48
Filed: 1943-11-15
Abstract: 569,551. Manipulating lamp shade rings. PLEN, M. Nov. 15, 1943, No. 19015. [Classes 61 (ii) and 61 (iii)] A pliers-like electric lamp shade ring gripping tool comprises two curved-section lever members 1, 2 pivoted together intermediate their length by means of rivets 3 passing through pairs of overlapping lugs 4, 5 and shaped at the ends to grip rings such as 12 of different sizes, the gripping action being effected by a spring member 6 movable along the levers to one side or other of the pivots 3.
Patent GB-805546-A (GB)
Title: Improvements in or relating to synthetic resinous material surfaced with metal
Inventor: CLARKSON ARTHUR HENRY
IPC: B29C70/00
Filed: 1956-06-20
Abstract: 805,546. Making metal surfaced plates; foil. MONTECATINI SOC. GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. June 20, 1956, No. 19099/56. Class 83 (2). [Also in Group VIII] A metal sheet 10 for surfacing a body 11 of synthetic resin has re-entrant formations 13 provided by small irregular metal particles 12 randomly distributed on one surface for keying to the resin. The metal 10 is preferably copper foil to which the particles 12 are secured by welding, soldering or metal spraying. The synthetic resin is preferably polytetrafluoroethylene or polymonochlorotrifluoroethylene which may be initially in powder form. The metal sheet is first dipped in a suspensoid of the resin and then dried to leave a layer of resin thereon; the sheet is then laid on the powdered resin 11, preferably contained in a mould, and the assembly is compressed and subsequently heated to 700 F. to sinter the powder. With other resins thermosetting or catalytic curing may be used instead of sintering. In another embodiment layers of fibre-glass are dipped into a suspensoid of resin and after drying are compressed with the metal sheet and cured by heating.
Patent GB-239674-A (GB)
Title: Improvements relating to electric inductance coils
IPC: H01F17/02
Filed: 1924-08-12
Abstract: .239,674. Alston, F. H. Aug. 12, 1924. Inductances.-In winding electric inductances particularly for wireless apparatus, of the type comprising single-layer solenoids with laterally - adjacent turns angularly displaced relatively to one another in the circumferential direction, wire is bent to curved form and then laid without the aid of a former, in displaced turns. The centres 1 - - 3, Fig. 3, of successive turns a<1> - - a<3> may lie on, and be displaced at regular intervals around, a common circle b as viewed from one end of the coil, the displacement being, for example, slightly more or less than 240‹. Parts of each turn die on circular cylinders forming the inner and outer peripheries of the coil and concentric with the circle b and the spaces between the turns a<1> - - a<3> are filled up in the axial direction of the coil by succeeding overlapping turns. The wound coil mav be treated with varnish or sealed in an annular case. The coil is wound on a rotating hollow mandrel 10, Figs. 6 and 7, against a flange 13 on a friction sleeve 12, wire being positively fed to the mandrel through a guide 22 by friction wheels 19, 20 and being bent to a definite curvature independently of the mandrel by an angularly-adjustable deflector 23 on the outlet end of the tubular guide 22. In order to guide successive turns into eccentric and displaced positions, the tube 22 is oscillated towards and away from the mandrel, being pivoted at its lower end 25 and oscillated from an eccentric 31 through including an adjustable plate 28. The turns are held as they are laid by clamping devices 18 arranged around and sliding longitudinally on the mandrel. The devices 18 are urged towards the flange 13 by spiral springs within the mandrel connected to studs 15 extending through slots in the mandrel and are successively retracted to receive the wire when on the upper half of the. mandrel by a stationary cam 34 engaging rollers 33 on the studs 15. The devices 18 may carry felt 18<a> gripping the wire. The friction grip of the sleeve 12 on the mandrel 10 may be increased by a spring 36 on the sleeeve carrying a pin engaging a groove in the mandrel. The sleeve 12 slides on the mandrel to accommodate the wire under the pressure of the devices 18, the width of the coil being limited by a detachable stop-pin 39 engaging holes 38. A thin 'blade 42 carried by a post 43 extends between the flange 13 and the devices 18 to guide the wire against previously wound turns. Slots 41, 40 in the flange 13 serve respectively to hold the initial end of the wire and to allow the turns to be tied or sewn together by a needle and thread before removal from the mandrel. The wheel 20 is conical in form and adjustable on its shaft 21 to vary the rate of feed of the wire. The number of turns wound may be indicated by counting mechanism.