baber/WOPTO huggingface dataset:
Patent GB-404421-A (GB)
Title: Fastenings for attache, suit and similar cases, and boxes
IPC: E05B65/50
Filed: 1932-10-18
Abstract: 404,421. Hasp fastenings. CHENEY, C. W., Factory Road, Soho, Birmingham. Oct. 18, 1932, Nos. 29051 and 32493. [Class 44.] A bolt 6 for a hasp fastening, which may be provided with blocking means, is mounted to slide on the front face 4 of an attachment plate 1, preferably in a recess 5, by ears 8 passed through slots in the plate 4 and clinched over. The bolt 6 is integral with or attached by turned-down lugs to the operating knob 7. A spring 10 for the bolt bears against and is mounted under the knob 7 to be concealed thereby. The bolt may be blocked by a lever 14 which is turned by a knob 15 and has an upstanding lug 18 to engage behind the bolt 6 ; alternatively, the lug 18 may be dispensed with and the bolt held by the knob 15 engaging directly behind the operating knob 7. Rotation of the blocking lever may be limited by a lug 19 engaging with a slot 20 in the plate 4. The bolt may be blocked by a key-operated device which, according to the second Provisional Specification, may be a partly revoluble tumbler co-operating with a stop on the front plate. According to the first Provisional Specification, the bolt may have a raised extension to move over the hasp.
Patent GB-1409265-A (GB)
Title: Tank structures
IPC: F17C3/02
Filed: 1972-06-21
Abstract: 1409265 Liquefied gas tanks CONCH INTERNATIONAL METHANE Ltd 21 May 1973 [21 June 1972] 29089/72 Heading F4P A self-supporting tank, e.g. for a liquefied gas marine tanker, comprises vertical walls 5 formed by part-cylindrical sections 7 joined along horizontal lines 8 at which reinforcement plates 9 are attached. An internal partition 10, Fig. 1, has reinforcement girders 11 aligned with and connected to plates 9 at their ends. The top and bottom walls 1, 2 have girders 3 with strengthening plates 4. In Fig. 1A (not shown), wider and shallower sections of greater thickness are used. The tank may be of aluminium alloy or 9% nickel steel. In Fig. 3, the tank is in a ship's hold 14 and has top and bottom walls formed by part-cylindrical sections 7, the bottom wall being supported on a drip tray 20 by girders 18. The tank walls and drip tray bottom are insulated either with fibrous glass with a vinyl or aluminium foil impingement barrier or with polyurethane foam on balsa wood. The tank has part-cylindrical and part-spherical connecting pieces as appropriate at its corners. Three or four-legged extruded metal sections, Figs. 6 and 7 (not shown), are used for joining sections 7 and girders 9 and 18.
Patent GB-534500-A (GB)
Title: Improvements in or relating to a process of treating finely divided calcium carbonate material to obtain carbon dioxide and lime
IPC: C13B20/06
Filed: 1939-11-01
Abstract: 534,500. Lime; carbon dioxide; purifying sugar juices. HOLLY SUGAR CORPORATION. Nov. 1, 1939, No. 29179. Convention date, Nov. 5, 1938. [Class 127] [Also in Groups III and XII] Finely-divided calcium carbonate obtained as a by-product in purifying sugar juices or fine particles of natural limestone are treated to obtain lime for treating sugar juices and a stream of carbon dioxide of concentration suitable for carbonating the limed juices. The carbonate is heated partly by direct action of combustion products and partly by indirect action in such a way that the amount of combustion gases which mix with the evolved gas yields a concentration of carbon dioxide of 30-40 per cent. Lime cake from the filters which may be mixed with coke and fine limestone is fed to the upper hearth 20 of a multiple-hearth furnace and is passed downwards over the separate hearths 20-28 by rabble arms 36 carried by a central hollow shaft 35 kept cool by forcing air through it. The bottom-hearth 28 from which lime is discharged through a pocketed wheel 59 is directly fired by burners 281. The hearths 25, 26, 27 are indirectly heated by muffles 291, 301, 31<SP>1</SP> heated by burners 32, 33, 34. The gases evolved are drawn upwards over the hearths to an outlet 61 by a pump. The upper hearths 20, 21, 22 are heated by the waste gases from the muffle chambers and constitute pre-heating and drying hearths from which the gases are drawn to an outlet 68. The carbon dioxide evolved on the lower hearths is diluted by the combustion gases from the burner 281 and the amount of dilution is regulated by means of this burner.
Patent GB-639959-A (GB)
Title: Split collet chuck
IPC: B23B31/20
Filed: 1947-11-03
Abstract: 639,959. Chucks. BECHLER, A. Nov. 3, 1947, Nos. 29240 and 29241. Convention dates, Dec. 6, 1946 and April 19, 1947. [Class 83 (iii)] A projection 15 is provided at the middle of the outer surface of each of the jaws 10 of a split collet chuck for cooperation with a tapered closing sleeve. Each projection is bounded by parallel side edges. The angle x made by each flank of a projection with the tangent at the point of contact with the closing sleeve is greater than the angle of friction of the materials from which the chuck and workpiece are made.
Patent GB-1201718-A (GB)
Title: Semiconductor device
IPC: H01L23/485
Filed: 1968-06-19
Abstract: 1,201,718. Semi-conductor devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 19 June, 1968 [22 June, 1967; 24 Feb., 1968], No. 29276/68. Heading H1K. The metal rectifying contact 8 of a Schottky diode is flared out over that part 9 near the surface of the semi-conductor diode body 1 to produce a marginal portion which terminates abruptly at its outermost end and has a thickness which decreases towards the outside. A diode with such a contact has a high inverse breakdown current with a high reverse voltage. The contact is manufactured by initially covering the diode body, which may comprise an N- type epitaxial layer on an N+ type silicon substrate, with a layer 4 of silicon dioxide and a further layer 5 of silicon monoxide, coating the layer 5 with a photo-lacquer except for those parts where the metal contact is to be, and etching with buffered hydrofluoric acid when the silicon monoxide layer 5 will be removed over the unlacquered area and the silicon dioxide layer 4 will also be removed at a faster rate to produce an aperture which widens out towards the surface of the body; the metal contact is then applied by vapour deposition and will be flared out because of the shape of the aperture. Suitable metals for use with N-type silicon are gold, silver, platinum or palladium. In a further method of producing a metal contact of the required shape an aperture is formed in the silicon monoxide layer 5 by depositing a layer of nickel or aluminium over that part of the silicon dioxide layer 4 where the aperture is required then applying the layer of silicon monoxide of less thickness than the metal layer so that it is interrupted by the edge of the metal layer, and etching to remove the metal layer with its covering oxide layer to leave a hole through which the silicon dioxide layer can be etched to give a flared aperture as before.
Patent GB-287424-A (GB)
Title: Process of dissociating zirconium ores
IPC: C22B34/14
Filed: 1927-11-02
Abstract: 287,424. Rhenania-Kunheim Verein Chemischer Fabriken Akt.-Ges. Nov. 2, 1927. Addition to 282,023. Zirconium oxychloride.-The product obtained by sintering zirconium ores in admixture with lime and an alkaline-earth halide, as described in the parent Specification, is treated with hydrochloric acid of such a concentration that a solution which in the cold is almost saturated with calcium chloride results, whereby a high yield of zirconium oxychloride crystals is obtained. Preferably, to avoid precipitation of the oxychloride whilst filtering the hot solution, insufficient hydrochloric acid to transform all the bases present to chlorides is used, the solution obtained separated from insoluble constituents, and further hydrochloric acid then added to precipitate the oxychloride. In an example, using hydrochloric acid 19‹ BÚ., 85 per cent of the amount of acid necessary to transform all the bases tn chlorides is used, whereby a solution is obtained which can be cooled to 20‹ C. without depositing crystals. After filtration, the remaining 15 per cent of acid is added to the liquor, causing precipitation of the oxychloride. If, however, the whole of the hydrochloric acid is employed for the purpose of obtaining the solution, crystals of the oxychloride separate out at 70‹ C.
Patent GB-1278347-A (GB)
Title: Improvements relating to tunnelling machines
Inventor: MAZZOTTI PETER CHARLES
IPC: E21D9/08
Filed: 1970-06-17
Abstract: 1278347 Tunnelling machines STREETERS PLANT HIRE Ltd 19 April 1971 [17 June 1970] 29347/70 Heading E1F A tunnelling machine comprises excavating jaws 6 pivotally mounted in a tubular shield 1 and operated by rams 9. The shield has a cutting edge 2 and has rams for advancing the shield by pressing on a tunnel lining, Fig. 3 (not shown). The jaws have teeth 8 but these may be replaced by other cutters such as discs, and spoil may be removed manually or by a self-loading endless belt or drag bucket conveyor.
Patent GB-1308577-A (GB)
Title: Coin collecting mechanism for coin operated telephones
IPC: H04M17/02
Filed: 1971-06-23
Abstract: 1308577 Coin collecting mechanism GNT AUTOMATIC AS 23 June 1971 [6 July 1970] 29384/71 Heading G4V A coin collecting mechanism particularly for coin operated telephones, comprises an inclined coin shoot 6 for storing coins of equal size in a row, and a movable flap 8 provided along the line of the coin shoot with a plurality of fingers 13, 15 disposed at intervals corresponding to the diameter of the coins, the uppermost finger 15 being normally disposed on one side of the coin shoot and the remaining fingers being separately adjustable to normally penetrate into the coin shoot from the other side thereof to act as coin stops, and a coin detector 21 situated between the uppermost and adjacent lower finger. On movement of the flap 8 away from the coin shoot as by a solenoid (18) (Fig. 2, not shown) the finger 15 enters the shoot and the lower finger 13 acting as a coin stop is removed from the shoot, allowing coins located between these fingers to fall through an opening normally closed by a portion 12 of the flap, but retaining coins located upstream of the finger 15. The number of coins collected on each movement of the flap depends on which of the lower fingers 13, which are preferably bendable lugs projecting from the edge of the flap (Figs. 3, 4, not shown) is adjusted to penetrate into the coin shoot. The coin detector 21 is preferably of the inductive type comprising two coils situated on one-side of the coin shoot and may be used to control the energization of the solenoid (18).
Patent GB-1279137-A (GB)
Title: Process for production of citraconic acid anhydride
Inventor: IBING GUNTHER
IPC: C07C51/487
Filed: 1969-06-10
Abstract: 1279137 Citraconic anhydride VEBACHEMIE AG 10 June 1969 29407/69 Heading C2C Citraconic anhydride is produced from scrubbing liquors resulting from waste gas scrubbing operations in plants for catalytic gas phase oxidation of alkyl aromatics and other hydrocarbons, in which the anhydride is formed as a by-product and is present in the liquors as citraconic acid. The process comprises isomerization of maleic acid to fumaric acid, separation of the latter without causing a structural change in the citraconic acid, concentrating the solution by distillation under vacuum (sump temperature <80‹ C.) until 80-90% of the water has distilled over, redistilling the residue (sump temperature >80‹ C.), separating the citraconic anhydride from the aqueous distillate, and optionally refining it, e.g. by rectification.
Patent GB-1192636-A (GB)
Title: Casting High Melting Point Materials
Inventor: SYLVESTER EDMUND QUINCY
IPC: B22D7/08
Filed: 1967-06-27
Abstract: 1,192,636. Slab-casting machines; moulds. E. Q. SYLVESTER. 27 June, 1967, No. 29542/67. Heading B3F. To form a mould, e.g. for casting a slab 79 of steel, two cast steel or C.I. mould-slabs 10 are swung, each by a vertical shaft 22 to which its hinge-lugs 20 are keyed, to the positions shown in which they are spaced by bars 34, 36 which form the short sides of the mould; then, after casting, the slabs 10 are swung by their shafts 22, driven by sprocket and chain 23, through 180 degrees to combine with a second pair of bars 34, 36 to form a fresh mould. In this way, thermal stressing of the slabs 10 is reversed. The mould parts 10, 34, 36 are supported slidably on a graphite or C.I. bed 6, but, for moving between the two mould positions, the slabs 10 are each raised by raising both a lowermost hinge-lug 20 and a section 28 of a circular track 8 on which runs a roller 26 associated with edge-brackets 14 of the slab. There are edge-brackets 12 also at the hinge edges of the mould slabs 10, and when the slabs are in position, one set of a number of holes 16 in these brackets of one slab are vertically aligned with a corresponding set of those of the other slab and power-operated wedges 30 are inserted to clamp the mould parts together. A set of wedges 30 adjacent the track 8 coact similarly with a set of aligned holes 18 in the brackets 14. The holes 16, 18 visible in Fig. 1 are in use when the slabs are swung to the mould position to the left in the Figure. Between pours, the bar portions 34, 36 of the moulds are rotated through 180 degrees about their vertical axes by handles 46, 50 to reverse inner and outer surfaces. The outer bars 36 can be moved nearer the opposing bars 34 (to adjust the casting width) by a shaft 58 moving a ram 52 in a head 54. Compression rods 59 for the bars 36 are moved by a power device 62. The metal rises into the mould through a lined gate (64, 68) of which part is in the bed 6 and which is closable by a cut-off plate 72 with an opening 74 and slidable by a cylinder 76 in a groove 70 in the bed. The inner surfaces of the mould can be sprayed with a wash or have ceramic liners 80 attached by clips and the spraying can be done when the particular surfaces are idle, on the outside of a mould assembly. Toggle clamps 86 remove the cast slab 79 when the mould-slabs 10 are swung away.
Patent GB-865828-A (GB)
Title: Improvements in and relating to hand tools
IPC: B25B7/12
Filed: 1958-09-16
Abstract: 865,828. Stripping cables. AMP. Inc. Sept. 16, 1958 [Nov. 27, 1957], No. 29621/58. Class 36. [Also in Group XXIII] Pliers having crimping dies 30, 32 for crimping electrical connectors to conductors are provided with insulation cutting and stripping means. The edges of the handle 46 and link 52 which abut when the handles are closed have cutting surfaces 56a, 56b which will cut into the insulation of a wire positioned between them. The insulation can then be stripped by pulling the wire out of the insulation which is retained by the abutting edges of the handle and link.
Patent GB-1211011-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: JAQUISS MICHAEL THORNTON
IPC: G21C15/28
Filed: 1967-06-27
Abstract: 1,211,011. Moderators. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 20 June, 1968 [27 June, 1967], No. 29660/67. Addition to 1,081,701. Heading G6C. In a graphite moderated nuclear reactor, methane and carbon monoxide are added to the carbon-dioxide gas coolant to reduce corrosion of the graphite by the coolant. In order to reduce the rate at which methane is destroyed, during operation of the reactor, the carbon monoxide and methane concentrations are adjusted so as to give a carbon monoxide concentration between 1 and 7% by volume.
Patent GB-325251-A (GB)
Title: An improved form of lock nut construction
IPC: F16B39/14
Filed: 1928-10-15
Abstract: 325,251. Wood Electric Co., Inc., C. D., and Kulka, E. R. Oct. 15, 1928. Locking nuts. - A cup-shaped locking washer has radially split tongues 14 shaped on their inner ends 15 to engage both faces of the thread of the bolt. When the locking washer is tightened to bear on the nut 10, one tongue is arranged to wedge between the top of the nut and the thread of the bolt.
Patent GB-318412-A (GB)
Title: Improvements in the manufacture and production of insulated articles for electrical engineering purposes
IPC: H01B3/18
Filed: 1928-10-15
Abstract: 318,412. Johnson, J. Y., (I. G. Farbenindustric Akt.-Ges.). Oct. 15, 1928. Impregnating-compositions for electric insulation. - To increase the insulating properties of insulating materials, the materials are treated with salts of naphthenic acid which are only slightly soluble, in water, the calcium, barium, aluminium, magnesium, lead, manganese, zinc, cobalt or iron salts being stated to be especially useful. Double salts may be used, and oils such as turpentine, or resins, gums, asphalt or tar may be added to the naphthenic acid salts. In an example, 30 parts by weight of naphthenic acid zinc salt with 90 parts of artificial resin obtained by condensation of cyclohexanone, 6 parta of castor oil, 10 parts of colophony and 200 parts of crude benzene are mixed together. In a further example, naphthenic acid manganese salt, linseed oil, rubber, and crude benzene are mixed together for the impregnation of cable paper.
Patent GB-226661-A (GB)
Title: Lighting magneto for vehicles
IPC: H02K21/10
Filed: 1923-11-26
Abstract: 226,661. Baumgartner, E. Nov. 26, 1923. Centrifugal switches.- Lighting-magnetos for vehicles are regulated by means of a centrifugal device that causes the armature to be shunted at predetermined speeds through resistances arranged in parallel. A spring e carrying a weight e' rotates with the armature c and is thrown out centrifugally so as to shunt the armature through resistances g', g<2>, g<3> brought successively into parallel at increasing speeds of the armature. The weight acts by pressing together resilient con- 'ducting blades connected to the resistances.
Patent GB-1100785-A (GB)
Title: Improvements in or relating to cutting tools for machines for making tufted carpets
Inventor: NEALE RICHARD BERNARD
IPC: B01D33/00
Filed: 1965-07-11
Abstract: 1,100,785. Soldering. DOCK GRINDING & ENGINEERING CO. Ltd. 14 July, .965' No. 29767/65. Heading B3R. [Also in Divisions B4 and D1] A cutting tip 12 of a yarn loopcutting knife for a tufting machine is fixed to a shank 13 by soldering a shim to surfaces, on both the tip and the shank, which extend at an angle to each other. The shank is laid on a table 18 and is clamped thereagainst by a head 21 on a lever 19 which is connected by a toggle link 23 to a hand lever 22. The tip is laid on a table 24, slidable in guides 25, and after being engaged with the shank is clamped to table 24 by a head 27 on a lever 26 connected by a toggle link 29 to a hand lever 28. Table 24 is then moved by a lever 31 to separate the tip and shank, a shim 30 consisting of a copper strip coated with silver solder is placed between the tip and shank, and table 14 is moved towards table 18 to form the shim into conformity with the joint surfaces. A flux such as borax in water is used, and the tip of an oxyacetylene flame is impinged on tip 12 to heat the material of the joint to about 660 C. A shank made of 0.6-0À7 per cent carbon steel and 0.5 inches: wide and 0À022 inches thick may be fixed to a tip having 80 % tungsten carbide and 20 % cobalt.
Patent GB-1319683-A (GB)
Title: Packing piece for an expansion joint
IPC: E01D19/06
Filed: 1970-06-19
Abstract: 1319683 Expansion joint HELKA SA 19 June 1970 [20 June 1969] 29849/70 Heading E1B In an expansion joint, in order to prevent lifting up due to upward bowing under lateral compression of the elastomeric packing piece 7, the latter is provided with a plurality of projections 13 which are each encased in a rigid metal block 14 held in position by washer 16 and screw 15. Embedded in the side surfaces of the packing piece are two series of equispaced identical metal edge members 8 interconnected by members 9, each member 8 having two flanges at right angles, one of the flanges being formed with two flaps (8b Fig. 2) which extend parallel to the other flange but in the opposite sense and are embedded in the elastomeric material, the other flange being provided with bolt holes for receiving a bolt 6.
Patent GB-244388-A (GB)
Title: Electrical connectors
IPC: H01R9/00
Filed: 1924-06-11
Abstract: 244,388. Clark, J. D'A. June 11, 1924. Two-part couplings. - A two-part coupling similar in construction to an ordinary press-stud fastening, is formed with an extension by means of which a conductor can be secured to the coupling. One of the members a, Fig. 1, may have a stem a<3> carrying nuts b that secure a conductor b<1>, the member being mounted on a panel. The conductor may be secured to the stud or socket member by means of a tang having projections that are bent over the end of the conductor, or by means of screwed extension c, Fig. 3, to which a nut d is fitted. Specifications 17375/04, 24394/04, 4683/08, 16828/11, 170,045, and 244,136 are referred to.
Patent GB-383393-A (GB)
Title: Improvements in alternating current motors
IPC: G04C3/10
Filed: 1931-10-29
Abstract: 383,393. Oscillating motors. AKT.- GES. FœR SCHALTAPPARATE, 23, Gerbergasse, Berne, Switzerland. Oct. 29, 1931, No. 29987. Convention date, Nov. 5, 1930. [Class 35.] A motor having an armature of stamped parts oscillating between the pole-pieces of a permanent magnet is excited by induction by stationary coils fed by alternating current which produce a field which is perpendicular to the permanent-magnet field. In the form shown, the armature which has pole-pieces 6 oscillates between pole-pieces 11 of the permanent-magnet 10 and is energized by the coils 13 on the stationary core 12 which is constructed of soft sheet iron. The armature is returned by the adjustable spring 9 attached to its hub, the oscillations of which spring correspond to the frequency of the current. A lever 18 carrying a pawl is fixed on the motor shaft 4 and produces a unidirectional movement of the ratchet wheel 15<1> and pinion 15 which are loosely mounted on the motor shaft.
Patent GB-669156-A (GB)
Title: Improved furnace installation
IPC: F23C99/00
Filed: 1949-11-24
Abstract: 669,156. Returning combustion products to furnaces. AKT.-GES. FUR TECHNISCHE STUDIEN: Nov. 24, 1949 [Dec. 24, 1948], No. 30148/49. Class 51 (i). In an air heating furnace installation adapted for the re-circulation of combustion products to the furnace chamber, a fluid fuel or pulverulent fuel burner 3 surrounded by a cylindrical jacket 4 defining an air chamber 5 with a narrowed forward outlet 24 is supplied with combustion air from a chamber 11 and re-circulated combustion products from a zone 17 of the chamber 11 under control of an annular slide-valve 6. Air heating tubes 2.may be disposed in the combustion chamber 1 from which waste gases pass by a pipe 12 to an exhaust turbine 13 which drives a fan 7 supplying air through a pipe 8 either to the chamber 5 under control of a valve 18 or to the chamber 11 under control of a valve 10 and also drives a fan 14 which extracts some of the waste gases from said chamber 1 and returns them through a pipe 16 to a chamber 17. On starting, with the valve 6 closed, an additional air fan 21 supplies air to the chamber 5 under control of a valve 23 until the exhaust gas turbine 13 commences to function, after which the fan 21 is stopped and the valve 6 closed. In a modification, Fig. 2 (not shown), the annular slide valve 6 is replaced by flapvalves which direct the re-circulated combustion products either around the burner to mix with the combustion air or in front of the burning zone in the form of a sheet of gases protecting the combustion chamber walls.