baber/WOPTO huggingface dataset:
Patent GB-1479204-A (GB)
Title: Means for projecting a stream of molten material
IPC: B22D11/01
Filed: 1974-05-22
Abstract: 1479204 Continuous casting MICHELIN ET CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 22 May 1974 [22 May 1973] 22959/74 Heading B3F Material 2, such as steel, kept liquid, or melted, in a crucible 1, is extruded through a die 3 in a carrier 4, Fig. 1, by pressure in a chamber 6, e.g. caused by introduction of gas through an inlet 7 to pass as a jet 12 into a chamber 14, for solidification in a cooling medium such as a gas, to form wire, filament or fibres; a fluidimpervious packing 20 is situated between the crucible 1 and the die carrier 4 and a cool region 8, e.g. cooled by liquid-circulation in a duct 10, has a heat-conductive connection with the material 2 by way of the packing 20 so that a seal 60, Fig. 6, of solidified material forms between the crucible 1 and die carrier 4. A resilient, metal/plastics or metallic seal 23 or a glued, welded or brazed joint is arranged between the cool region 8 and the packing 20 or chamber 6. The material of the packing 20 may be the same as that of the extruded metal or one of its main elements or be SiO 2 , Al 2 O 3 , silicate, beryllia, or BN; it may be reinforced.  The die 3 may have more than one orifice 13 and the downwardly directed jet 12 need not be vertical. During melting, a vacuum may be established in the pressure chamber 6. In another embodiment, the packing is in the form of an inverted cup so that its base covers the die 3 until the material to be extruded is melted, but is melted or dissolved or yields under pressure to unmask the die orifice when the material melts. As shown in Fig. 6, an agglomeration 60 solidifies at the top of the remaining cylindrical part of the packing 35 to seal the gap 63 betweenthe crucible 1 and the die carrier. In other embodiments, the packing is of flat sheet form and of upturned dish-shape, respectively, It may be of truncated cone, possibly closed at one end and flanged, or be of flat ring.  In yet another embodiment, the layer 20 and the cool region are integral with the pressure chamber 6.
Patent GB-837523-A (GB)
Title: Corrosion preventive galvanic anode zinc alloy
IPC: C22C18/00
Filed: 1958-07-17
Abstract: A corrosion preventing galvanic anode alloy consists of Zn, the purity of which is at least 99.99%, and one or more of In, Tl, Cd and Sn in total amount in the range 0.01-3% by weight.
Patent GB-845593-A (GB)
Title: Improvements in or relating to pressure vessels
Inventor: HILTON GEOFFREY
IPC: G21C13/02
Filed: 1957-07-19
Abstract: 845,593. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 9, 1958 [July 19, 1957], No. 23021/57. Class 39(4). A pressure vessel has a part of its wall formed as a deep box grid sealed by a membrane through which pass pipes for access to the vessel. One end of a vessel 1 is formed of a box grid 10 and a membrane 4 through which pass control rod and fuel loading tubes 3. The vessel rests on a flange inside concrete biological shielding 9 through which pass coolant ducts 15. The access pipes themselves could be used as members in the box grid, being joined by deep webs.
Patent GB-833882-A (GB)
Title: Improvements in and relating to stiffeners for articles of wearing apparel
Inventor: LOCKWOOD ARTHUR WILLIAM
IPC: A41C1/00
Filed: 1957-07-22
Abstract: 833,882. Garment stiffeners. TRUBENISED (GREAT BRITAIN) Ltd. June 18, 1958 [July 22, 1957], No. 23105/57. Class 141 A garment stiffener comprises an elongated stiffening strip and a wider strip of textile tape &c. secured together by a longitudinal line of stitching so that the tape projects beyond both side edges of the stiffening strip. The stiffener may be secured to the garment by stitching through the projecting margins of the tape or by adhesion of the marginal portions; in the latter case, the tape may include threads of cellulose acetate or polyethylene or be coated with a layer of such materials. One form of stiffening strip comprises a strip of sheet rubber secured in stretched condition to a strip of plastic sheet material, the tape being disposed on either exposed face or between the two plies of the composite strip. The stiffener may be applied to the upper edge of a girdle or to either the interlining or back ply of a collar point. Specification 768,641 is referred to.
Patent GB-322732-A (GB)
Title: Improvements in the construction of the holders of book matches
IPC: A24F27/12
Filed: 1928-08-10
Abstract: 322,732. Armelin, E., and Rennie, C. 0. Aug. 10, 1928. Packing Matches. - Book match holders are provided in the flap with a receptacle for cigarette papers, advertisements, complexion powder papers and the like. A rectangular card 1 is mitred at the corners and the edges turned under and secured to the flap 3. The exposed face is slotted at 4 for the withdrawal of the papers. An additional flap 5 may be disposed so as to lie between the match heads and the exposed portion of the papers, when the holder is closed. The striking surface may be placed on the receptacle.
Patent GB-303211-A (GB)
Title: Improvements in or relating to the heating and moistening of boot or shoe parts during boot or shoe manufacture
IPC: A43D95/12
Filed: 1927-09-03
Abstract: 303,211. British United Shoe Machinery Co., Ltd., and Smith, C. J. Sept. 3, 1927. Drawings to Specification. Methods of lasting.-Before lasting, uppers are tempered by exposing them in a chamber to a warm, very humid atmosphere. The uppers are lasted while in the tempered condition. The shoes are then, while still on their lasts, heated to set the uppers. The latter heating may be for a short time, say a quarter of an hour, at a temperature substantially above 90‹ F., particularly for patent leather. Specification 252,006 is referred to.
Patent GB-650856-A (GB)
Title: Improvements in or relating to television time base circuits
IPC: H03K4/43
Filed: 1948-09-02
Abstract: 650,856. Television; radiation responsive control systems. MULLARD RADIO VALVE CO., Ltd., and OVERTON, B. R. Sept. 2, 1948, No. 23153. [Class 40 (iii)] [Also in Group XL (c)] Temperature responsive means are associated with the frame scanning wave generator of a television receiver to maintain the amplitude of the scanning waveform substantially constant as the resistance of the deflector coils changes with changes in temperature during operation. In the arrangement described the frame deflector coils 14 (which have a positive temperature coefficient of resistance) are supplied with a scanning saw-tooth current waveform generated by a blocking-tube oscillator 26 and amplified by a triode amplifier 11 and a negative temperature coefficient resistor 1 which is positioned, spacially, with respect to the coils 14 so as to experience corresponding temperature changes (during the warming-up period after switching on) varies the potential at the anode of tube 26 and, consequently, the amplitude of the generated saw-tooth voltage wave to compensate for variations in the amplitude of the current saw-tooth wave in coils 14.
Patent GB-1000448-A (GB)
Title: Improvements in roll stand constructions for belt conveyors
IPC: B65G39/10
Filed: 1963-06-11
Abstract: 1,000,448. Endless conveyers. JERUIS B. WEBB CO. June 11, 1963 [July 25, 1962], No. 23161/63. Heading B8A. A frame for troughing rollers 14, 15 and consisting of transverse members 26, 27, connected by bracket members 28, is detachably located on transversely spaced frame members 20, 21 by the interengagement of notches 64 on the members 26, with notches 61 on the members 20, 21. In a modification (Figs. 4, 5), the members 20, 21 are replaced by cables 74, and a channel-shaped member 75 is connected to each end of the members 26, 27. Each side wall of each member 75 is formed with a cable engaging notch 86. An element 88 having an operating handle 90 carries a member 91 which is adapted to engage and deform the cable (Fig. 5) to provide a positive location of the roller frame in the direction of belt travel. Each bracket member 28 is formed with two relatively angled bore portions which each receive a bush 48 which is threaded on the appropriate end of a hollow spindle 42. The bush 48 carries seal ring which engages a roller bearing 44, 45. The outer angled bore of each of the outermost members 28 is fitted with a lubrication nipple 54. Oil is thereby forced into the bore of the spindle 42 and from thence into the spindles of the other two rollers. The oil then passes via a port 58 into an annular reservoir space between the spindle 42 and a bore 40 of the associated roller 15.
Patent GB-1458076-A (GB)
Title: Optical memory devices and memory systems
IPC: H01L27/146
Filed: 1974-05-24
Abstract: 1458076 Optical memory device ROCKWELL INTERNATIONAL CORP 24 May 1974 [4 June 1973] 23269/74 Heading H1K An array of optical memory elements comprises a semiconductor body with an insulating layer on one face comprising traps to which carriers may tunnel from the body and formed thereon a transparent conductive layer and a grid structure preventing inversion defining the boundaries of the elements, the semiconductor body containing and having at its opposite face a rectifying barrier which can be reverse biased in operation. As described the grid consists of an ion-implanted N + region in a layer of N-type silicon forming a rectifying barrier with a P-type layer which is ohmically contacted via a region of enhanced conductivity. The N-type layer has an ohmic contact and is coated with a 20 layer of silica through which carriers may tunnel to be trapped at its interface with a 500-1000 layer of silicon nitride underlying a transparent tin oxide electrode. A plurality of such structures may be mounted in polar coordinate arrays on opposite faces of a disc for rotation in front of a radially movable light source comprising gallium aluminium arsenide LEDs. To write information the disc is rotated to align a column of elements with the light source and with the rectifying barrier reverse biased a negative voltage of 50-70 is applied to the transparent conductive layers the light source is radially adjusted and selected LEDs energized to produced minority carriers which tunnel to and charge the oxide-nitride interface above illuminated elements. Stored information is non-destructively read by scanning a light beam over the array with a reduced negative bias on the transparent layer causing generated minority carriers to be drawn to the silicon-oxide interface or the PN junction according to the local state of charge of the oxide-nitride interface, the reverse current of the junction being amplified to indicate this state, the amplifier being disabled during writing and during erasure which is effected by reversal of the high bias voltage on the transparent conductive layer.
Patent GB-398020-A (GB)
Title: Process for the manufacture of complex double compounds of organic heavy metal mercapto compounds
IPC: C07H23/00
Filed: 1932-08-19
Abstract: Double compounds of heavy metal organic mercapto compounds with inorganic sulphydryl compounds or organic mercapto compounds other than thiocarbohydrates are prepared by interaction of the two components in solution in water or organic solvents, such as alcohol and ethylene glycol.  The products, which contain the components in molecular, usually equimolecular, proportions, possess therapeutic properties.  Examples are given of the preparation of double compounds of (1) 1-aurothioglucose with sodium thiosulphate; (2) 1-auroor argento-thioglucose with sodium cystein; (3) 1-aurothioglucose with disodium 4-amino-2-mercaptobenzene-1-sulphonate or sodium thioacetate or potassium xanthogenate; (4) sodium 4 - amino - 2 - auromercaptobenzene - 1 - sulphonate with sodium thioglucose; (5) 4-amino-2-auromercaptobenzene-1-sulphonic acid, as the free acid or its sodium salt, with sodium thiosulphate; (6) silver thiogalactose (see Specification 386,562) with sodium thiosulphate; (7) antimony-3-thiocellobiose (see Specification 386,562) with disodium thiolactate; (8) sodium cuprothiolactate with sodium thiosulphate; (9) sodium 4-amino-2-argentomercaptobenzoic acid with sodium thiosalicylate. Specification 397,293 also is referred to.
Patent GB-749742-A (GB)
Title: Substituted alpha-chloroacetophenones
Filed: 1951-10-08
Abstract: The invention comprises substituted o-hydroxychloroacetophenone of the general formula <FORM:0749742/IV(a)/1> where R is an alkyl or phenyl group or a halogen atom or is the radical <FORM:0749742/IV(a)/2> and R1 is hydrogen or a hydroxyl OH group. The compounds are made by splitting a chlorinated diketochromane of the formula <FORM:0749742/IV(a)/3> where R2 is an alkyl or phenyl group or a halogen atom or a 3-chloro-3-diketochromanylmethyl radical, by treating it with water followed by elimination of carbon dioxide.  In examples (1) 3:3-dichloro-2:4-diketochromane is treated with water to give 2-hydroxy-omega-dichloracetophenone; (2) 3-chloro-3-ethyl-2:4-diketochromane is refluxed with water to give 2 - hydroxy - alpha - chlorobutyrophenone; (3) 3 - chloro - 3 - phenyl - 2:4 - diketochromane is refluxed with water to give 2-hydroxy-alpha-chloro - alpha phenyl - acetophenone; (4) 3:3-methylene - bis - (3 - chloro - 2:4 - diketo chromane) is refluxed with water to give 1:3-disalicoyl - 1:3 - dichloropropane; (5) 3:3 - dichloro - 7 - hydroxy - 2:4 - diketochromane, obtained by treating 4:7-dihydroxy coumarin with sulphuryl chloride is boiled with water to give omega-dichloro-2:4-dihydroxy-acetophenone acid (6) 4-hydroxycoumarin is converted to 3:3 - dichloro - 2:4 - diketochromane by treatment with sulphuryl chloride or with chlorine in carbon tetrachloride and the product is treated with water to give the product of (1).  Specification 710,128 is referred to.
Patent GB-481086-A (GB)
Title: Improvements in or relating to electron discharge tube arrangements
IPC: B60C7/14
Filed: 1937-08-26
Abstract: 481,086. Wireless apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 26, 1937, No. 23425. Convention date, Sept. 19, 1936. [Class 40 (v)] A very high frequency stage assembly comprises a pair of valves 1, 2, Fig. 1, mounted end to end, the grid and anode connectors 4, 3 respectively being connected to the corresponding anode and grid leads 5, 6 of the other valve over neutralizing condensers comprising concentric tubes 7, 8, 9, 10, adjustable by sliding the inner in the outer. The valves are connected in push-pull, the tuned circuit comprising a pair of tubes 11, 12 with adjustable sliding bridge members at each end. The centres of the tubes are connected to the outer cylinders 7, 9 of the neutralizing condensers and are coupled by a condenser 14 constituted by a pair of spaced metal discs. The whole stage is enclosed in a screen 13. As shown in Fig. 2 the stage is intended for coupling on its input side to a master oscillator circuit Mo and on the output side to a load circuit O.
Patent GB-207160-A (GB)
Title: Improvements in means for lubricating the big ends of connecting rods
IPC: F16C3/14
Filed: 1923-09-20
Abstract: 207,160. Soc. Anon. des Ateliers d'Aviation L. BrÚguet. Nov. 18, 1922, [Convention date]. Channels in cranks.-Oil supplied through a hollow crank-shaft a passes to the big-end bearings through tubes b which open into the axis of the shaft at b<1> at a certain distance from one another, the other ends b<2> opening on the surfaces of the crank pins.
Patent GB-488764-A (GB)
Title: Improvements in lathe and like metal cutting tools
IPC: B23B27/16
Filed: 1937-08-28
Abstract: 488,764. Lathe &c. tools. O.K. TOOL CO., Inc. Aug. 28, 1937, No. 23618. Convention date Oct. 27, 1936. [Class 83 (iii)] A lathe &c. cutting tool comprises a holder 10, Fig. 1, having a recess therein adapted to receive a tool-bit 11 and similar to that described in Specification 488,400 other than that the serrated seating surface 14 and the rear abutment wall 15 are so inclined that movement of the tool-bit 11 across the recess serves not only to raise the tool-bit, as described in the Specification referred to, but also displaces it forwardly. The tool-bit may be clamped in the holder in either of the ways described in the above Specification.
Patent GB-628422-A (GB)
Title: Improvements in wave or tide motors
IPC: F03B13/18
Filed: 1947-08-27
Abstract: 628,422. Wave and tide motors. PATRICK, H. H. Aug. 27,1947, No. 23703. [Class 69 (i)] A wave or tide motor comprises a wheeled bogey 1, having a centrally disposed transverse screen, which due to the impact of the waves on the screen is caused to run to and fro along rails 2. The motion of the bogey rotates a shaft 14 owing to ropes 7 being secured to the bogey and passing around pulleys 6, secured on the seaward side of the bogey, and to drums 8 on a shaft 9 and then back to the bogey. The drive between the shafts 9 and 14 is due to bevel gear wheels 15, 16 and 17, pawls 18 secured to the wheels 16, 17 and ratchet wheels 19 secured on the shaft 9. A flywheel 20 is provided on the shaft 14, which may drive electrical generators, air compressors or further lines of shafting. Each rope 7 is tensioned by an engaging roller 10a of an adjustably loaded carriage 13.
Patent GB-805951-A (GB)
Title: Improvements in the production of alpha. beta-dichlorpropionic acid esters
IPC: C07C69/63
Filed: 1956-08-02
Abstract: a :b -Dichloropropionic acid esters (e.g. of saturated aliphatic, cycloaliphatic or araliphatic alcohols) are produced by treating acrylic acid esters with chlorine in the gas phase in the presence of a minor amount (preferably 0.1 to 5 per cent by weight of the amount of acrylic acid ester) of an N-substituted carboxylic acid amide or a primary, secondary or tertiary amine of the aliphatic, cycloaliphatic, araliphatic or aromatic series, or a mixture of these compounds.  The amide or amine preferably has a boiling-point close to that of the acrylic acid ester, whereby the two compounds can be vaporized together, and there is preferably also present a polymerization retarder.  A suitable amount of chlorine is 0.9-1.5 mols. per mol. of ester, and the preferred reaction temperatures lie in the range 80-200 DEG  C.  Examples describe the preparation of the methyl ester in the presence of hydroquinone and (1) methylpyrrolidone; (2) N:N-diethylformamide; (3) N:N-dimethylformamide; (4) dimethylamine; (5) diethylamine; (6) n-butylamine; (7) triethylamine; (8) monomethylformamide; (9) N:N-dibutylformamide; and (10) 2-ethylhexylamine-(1).  Additional amides and amines are listed.
Patent GB-757459-A (GB)
Title: Improvements in and relating to sockets for thermionic valves, electrical plugs or other electrical devices having projecting terminal prongs
IPC: H01R33/76
Filed: 1954-08-16
Abstract: 757,459. Holders for thermionic valves. CINCH MANUFACTURING CORPORATION. Aug. 16, 1954 [Sept. 2, 1953], No. 23823/54. Class 38 (1). A socket for snapping into an aperture 5 in a panel carrying printed conductors 3 comprises a body 6 having circularly arranged socket contacts 16 and a central shield 25 connected to one of the socket contacts. The latter have tails 18 which are bent over outside the body 6 to form shoulders 22 and lips 23 for resiliently engaging aperture 5 adjacent the printed conductors. The shield 25 also has a tail 33 secured thereto which engages aperture 5 adjacent an earthing conductor 3a. Integral with shield 25 is an arm 30, the end of which engages a flat portion 19 of the tail of a selected socket and is secured thereto by dip-soldering, the tails at the same time being soldered to the printed conductors. In a modification, Fig. 9, more than one contact may be connected to the shield by a member 64 centrally apertured for securing to the shield and having an earthing tail 69 and the requisite number of arms 67 for connection to the socket tails as in the previous construction, the arms not required being cut off member 64.
Patent GB-661141-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1949-09-15
Abstract: 661,141. Cylinders. MASCHINENFABRIK AUGSBURG - NURNBERG AKT. - GES. Sept. 15, 1949 [July 11, 1949], No. 23829/49. Class 7(ii) In a two-stroke internal combustion engine a row of exhaust ports 1-4 is arranged above a row of inlet ports I-V, the length of the inlet ports increasing, and that of the exhaust ports decreasing, from the ends of the rows to a central portion thereof. The two outer inlet ports V are wholly or partially in the other half of the cylinder from that in which the reaminder of the ports are located. In order to provide against narrow cylinder spacing in a double-acting engine the scavenging and charging supply ducts for each part of the cylinder merge into a common conduit. The small central inlet port I may be dispensed with altogether in the case of a single-acting engine or removed from the lower row of inlet ports only in the case of a doubleacting engine, as shown in the Figure.
Patent GB-1335412-A (GB)
Title: Cam consisting of several elements with a cont'nuous or non- continuous acceleration curve
IPC: F16H53/02
Filed: 1971-04-19
Abstract: 1335412 Cams USTAV PRO VYZKUM MOTOROVYCH VOZIDEL 19 April 1971 [27 July 1970] 23832/71 Heading F2K A tappet lift cam designed to reduce noise in operation and to increase its life has a plurality of regions of which the first from the non-lift point N has an equation corresponding to a straight line, a sine curve, or a parabolic curve while the second region lift curve equation has a second differential which is curved and a third differential which is zero at the transition point between the first and second regions. Preferably the second differential of the equation of the second region also has zero value at the transition point between the first and second regions.
Patent GB-258734-A (GB)
Title: Device for lifting and carrying shocks of corn or similar objects or materials
IPC: A01D87/12
Filed: 1925-09-24
Abstract: 258,734. Buswell, C. J. Sept. 24, 1925. Holding and pick-up tools.- A bar A is provided with a row of tines B and has at each end an adjustable handle C. The handles are normally arranged to be horizontal when the tines B have been pressed upwardly into a corn shock or other article that it is desired to remove. The devices are used in pairs one on each side of the shock. In a modification two bars are connected at one end by a pivot, chain, rope, or links and the tines closed upon the mass to be removed which is then dragged away by an operator at the free end of the bars.
Patent GB-367304-A (GB)
Title: Improvements relating to microscopes
IPC: G02B21/06
Filed: 1931-08-25
Abstract: 367,304. Microscopes. HILLER, E. G. and NATIONAL BOILER & GENERAL INSURANCE CO., Ltd., National Buildings, St. Mary's Parsonage, Manchester. Aug. 25, 1931, No. 23875. [Class 97 (i).] In a microscope for examining metal surfaces at relatively inaccessible points, a prism is arranged so as to serve as a total reflection prism with respect to the light from the illuminated surface under examination, and to serve also as a refraction prism with respect to light from the source of illumination. The prism m and source of light j are mounted in a holder h detachably mounted on the tube c, the light from the source i passing through the prism to illuminate the surface p, while light from the surface p is reflected by the prism and passes through the microscope objective. The tube c surrounding the microscope tube b is of insulating material and electric leads d, e pass through it to sockets f, g. The holder h is attached to the tube c by pins i entering the sockets and serving also to convey current to the lamp j.