baber/WOPTO huggingface dataset:
Patent GB-793585-A (GB)
Title: Process for the preparation of benzanthrone
Inventor: SCOTT GERALD
IPC: C09B3/06
Filed: 1956-01-04
Abstract: Benzanthrone is prepared by treating benzanthrene with aqueous nitric acid.  An inert solvent such as toluene, ligroin or nitrobenzene may be present.  The benzanthrene used may be pure or may be admixed with other hydrocarbons, for example the mixture of benzanthrene and dihydrobenzanthrene obtained by the pyrolysis of a mixture of a - and b -benzylnaphthalenes (see Specification 409,770, [Group IV]). Examples illustrate the process of the invention.  In an example in which a mixture of benzanthrene and dihydrobenzanthrene was used, the dihydrobenzanthrene was recovered unchanged at the end of the reaction.
Patent GB-1018217-A (GB)
Title: Improvements in or relating to carriers for pneumatic conveying systems
Inventor: MOSS FRANK
IPC: B65G51/06
Filed: 1964-01-03
Abstract: 1,018,217. Pneumatic despatch apparatus. ENGLISH STEEL CORPORATION Ltd. Oct. 26, 1964 [Jan. 3, 1964], No. 301/64. Heading B8A. A carrier from a pneumatic conveying system comprises a metal tube 2 having a closure cup 20 secured to one end and a detachable screwed cover 10 at the other end, the cup and cover presenting abutment faces inside the carrier to locate the conveyed article and sleeves 15, 21 of non-ferrous metal secured around the ends of the tube, to leave a waist 22 therebetween over the central portion of the tube. The cover 10 may have a dome end 6 and has a flange 7 which seats on a resilient washer 8. The flange 7 does not extend beyond the periphery of the outside diameter of the tube 2. The cover may have flats 9, a diametral slot or pin holes to facilitate the screwing operation. A hollow 11 may be formed in the cover and the abutment face is then formed by the rim 12, a central peg extending from the hollow 11 or a bridging member across the hollow. The abutment face at the cup end is formed by a bar 14 fitted inside the tube 2 or by a central peg extending from the cup 20. The sleeve 21 is formed by the flanges of the cup 20 locating on shoulder 19 of the tube 2 and tapers towards that end of the tube, the corners being rounded. The sleeve 15 is likewise located and tapered.
Patent GB-227131-A (GB)
Title: Improvements in and relating to feed water purifiers
IPC: F22D1/30
Filed: 1925-01-05
Abstract: 227,131. Titan-Patente Akt.-Ges., (Assignees of Kiss, D. Ledßcs-). Jan. 4,1924, [Convention date]. Feed-water, heating.-Water is injected under a hood m in a steam dome and falls over a series of superposed trays b<1> - - b<6> supported therein by brackets on the sides. Each tray has a number of compartments formed uy radial baffles s one of which is higher than the others to cause the water to move round the tray before falling over the edge of a cut-away part y of the rim at which point also the tray is narrower. The gaps on adjacent trays are relatively displaced. The water passes to a mud collector d which can be blown out through a pipe f.
Patent GB-1205322-A (GB)
Title: Benzenesulphonyl-ureas and process for preparing them
IPC: C07C311/58
Filed: 1968-01-03
Abstract: 1,205,322. Sulphonyl-ureas. FARBWERKE HOECHST A.G. 3 Jan., 1968 [3 Jan., 1967], No. 447/68. Heading C2C. Novel compounds I (including salts thereof) wherein Z signifies H, C 1-4  alkoxy, alkyloxy, methoxymethoxy or ethoxymethoxy and X signifies halogen, methyl, -CF 3  or methoxy, or, if Z is alkoxy or alkyloxy X may also signify H, are prepared utilizing standard methods. The preparation of the following intermediates is also described: N - [4 - (# - <3 - methylbenzamido> - ethyl) - benzenesulphonyl] - N<SP>1</SP>,N<SP>1</SP> - diphenyl - urea and -N<SP>1</SP> - cyclo - heptatrienylurea, 1 - [4 - (# - <2 - methoxy - 5 - chloro - benz - amido> - ethyl) - benzenesulphonyl] - 3 - cyclo - heptyl - parabanic acid, N - [4 - (# - <2 - meth - oxy - 5 - chloro - benzamido> - ethyl) - benzene - sulphonyl] - phenyl urethane, -N<SP>1</SP> - methyl-urea, -N<SP>1</SP>-acetyl - urea, -N<SP>1</SP>-cycloheptyl - thiourea and the corresponding -N<SP>1</SP>-cycloheptyl - isourea methyl ether, -N<SP>1</SP>-cycloheptyl - isothiourea methyl ether, and -imino - dithiocarbonic acid (in the form of the potassium salt) and the dimethyl ester thereof, N,N<SP>1</SP>-bis-[4-(#-<2-methoxy - 5 - chloro - benzamido> - ethyl) - benzene - sulphonyl] - urea, 4 - [4 - (# - <2 - methoxy - 5 - chloro - benzamido > ethyl) - benzenesulphonyl] - cyclo - octanone - semicarbazone, 4 - (# - <2 - methoxy - 5 - chloro - benzamido> - ethyl) - ben - zenesulphonamide and the cycloheptylamine salt of N - [4 - (# - <2 - methoxy - 5 - chloro - benzamido> - ethyl - benzenesulphonyl] - N<SP>1</SP>- acetyl-urea. Pharmaceutical preparations showing hypoglycemic action contain as active ingredient compounds I; administration may be orally, e.g. in the form of a tablet. Reference has been directed by the Comptroller to Specification 1,080,705.
Patent GB-763886-A (GB)
Title: Quadrantal error correcting means for magnetic antennas
IPC: G01S3/10
Filed: 1955-01-06
Abstract: 763,886. Radio direction-finding. BENDIX AVIATION CORPORATION. Jan. 6, 1955 '[Jan. 25, 1954], No. 457/55. Class 40(7) Relates to a flushmounted magnetic aerial system for direction - finding of the type disclosed in Specification 719,526 which comprises a plurality of coplanar radial elements 1 attached to corresponding pole pieces 4 surrounding a coil 3 wound on a rotatable core 2, the core 2, elements 1 and pole pieces 4 being of high magnetic permeability. According to the present invention each element 1 is pivoted at 25 to a radial projection 24 from its associated pole piece 4 so that quadrantal wear due to re-radiation of the received waves from conductive surfaces adjacent the aerial may be compensated by adjusting the angles between the elements 1 to distort the field produced within the core.
Patent GB-283222-A (GB)
Title: Manufacture of photographic silver-salt emulsions
IPC: H01B17/30
Filed: 1928-01-07
Abstract: 283,222. I. G. Farbenindustrie Akt.- Ges. Jan. 7, 1927, [Convention date]. Sensitized plates, films, and papers,: emulsions, preparing .-Silver salt emulsions with excellent ripening properties are made by using as a carrier for the silver salt, either alone or mixed with gelatin, a substance produced by treating gelatin or another proteid with sulphur, particularly colloidal sulphur, or with carbon di-sulphide, or with an inorganic sulphide, particularly an alkali sulphide or an alkaline, earth sulphide. Hide .cuttings, glue solution or other parent material for obtaining gelatin may be treated with the sulphur or sulphur compound. Iron impurities in the gelatin are not destructive, but have an accelerating action; the latter action can be obtained by addition of an otherwise-not-injurious substance. As an example. one part of sodium sulphide may be added to 500,000 parts of gelatin solution, and any excess of sulphide rendered harmless by cautious oxidization, e.g. with perchloric acid. Alternatively a small proportion only of the total gelatin used, say 0.1 per cent, may be boiled with one-tenth its weight of colloidal sulphur and added to the gelatin subsequently, e.g. before solidification. Or the product of reaction of gelatin with the sulphur compound used may be evaporated to dryness and added to the boiled hide, or even used directly as an addition to the emulsion.
Patent GB-454823-A (GB)
Title: Improvements relating to the prevention of blinding or dazzle in electric arc-welding
IPC: G02C7/16
Filed: 1936-01-08
Abstract: 454,823. Protective devices for arc welding. GRUN, A., 48, Hasenrainweg, Oberesslingen, W³rtemberg, Germany. Jan. 8, 1936, No. 629. Convention date, Jan. 11, 1935. [Class 75 (ii)] To prevent blinding or dazzle and injurious action of the electric arc on the operator's eyes in electric arc welding, a screen is situated before the eyes, which is opened and closed in rhythmic alternation corresponding to the frequency of interruption of the arc and so that the screen is closed whilst the arc is jumping. Manipulation of the electrode is thus facilitated. The periods of opening and closing of the screen may be of different lengths. In alternating current arc welding the two periods during which the screen is open and closed coincide with a half cycle of the current. Dazzle from the electrode or work may be further prevented by goggles of comparatively clear glass.
Patent GB-979753-A (GB)
Title: Improvements in men's wearing apparel
Inventor: STEDMAN SARAH WHITE
IPC: A41B9/02
Filed: 1962-01-08
Abstract: 979,753. Undergarments. STEDMAN MANUFACTURING CO. Jan. 8, 1962, No. 684/62. Heading A3V. A man's brief comprises a front part 1 with an arcuate lower edge 11 overlapping a pouch 12 made of elastic fabric seamed at 16 and lined with knitted fabric 13, non-extensible tapes 8, 9 are sewn to the upper part of the front 1, crossed and sewn to the edges of the pouch 12, the lower end of the tape 8 also being sewn to the lower part of the front 1 but the tape 9 is left free so that a fly opening 10 is provided. An expansion gusset 14 made of knitted ribbed cotton material is sewn directly to the pouch 12 unless the lining 13 is omitted, in which case pouch and gusset are sewn to an intermediate inextensible tape 15 (Fig. 6, not shown).
Patent GB-552620-A (GB)
Title: Improvements relating to clamping, straightening and like devices for the workpiecesbeing operated upon by machine tools
IPC: B23Q3/08
Filed: 1942-01-19
Abstract: 552,620. Work-holders; straightening. ROE & CO., Ltd., A. V., and REDRUP, C. B. Jan. 19, 1942, No. 757. [Classes 83 (iii) and 83 (iv)] Work pieces such as spars 2, 3 supported on a jig-plate 4 are clamped and/or straightened prior to operation in machine tools by means comprising hydraulic cylinders located by T-bolts in the machine table a or auxiliary table placed thereon. The table has T-slots b, c, the slot c being fitted with hollow bolts e each secured to a piston f below which fluid from a line is admitted to cause cylinder g to move a plate h to clamp the spars 2, 3 against the releasing pressure of a spring i. A series of straightening cylinders n having locating ribs p are secured by bolts q to the table at each side of the work, and fluid supplied by lines r, s moves pistons m to straighten the work by forcing it against the jig-plate, or withdraws the pistons to permit the operation of milling or other tools. In operation, pressure is supplied first to the straightening clamps and then to the holding-down clamps. Hydraulic fluid is supplied by a pump v driven by a motor u and is controlled by valves w, x, all the parts being mounted on the machine table or an extension thereof.
Patent GB-394601-A (GB)
Title: Improvements in and relating to steam and gas turbines
IPC: F01D9/04
Filed: 1933-01-09
Abstract: 394,601. Making turbine parts; drilling. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Jan. 9, 1933, No. 771. Convention date, Jan. 8, 1932. [Classes 83 (ii) and 83 (iii).] In a nozzle body 1 for steam &c. turbines, the nozzle passages 2 are cut, at least on the outlet side in a rectangular form out of heatresisting material by drills which are guided in the direction of the steam passage. The passage on the inlet side may be formed conical by a milling cutter. Passages are formed in the nozzle bodies so that cooling medium may be circulated. Circular channels 12, 13 are cut and closed by welded-on plates 14, 15. The cooling circuit is completed by radial bores 19, 20 and a transverse bore 17.
Patent GB-174071-A (GB)
Title: Apparatus for indicating the weight of cargo in ships' holds
IPC: B63B39/12
Filed: 1922-01-10
Abstract: 174,071. Augereau, A. J. Jan. 10, 1922. Draught, indicating.-Apparatus for weighing cargo by consideration of the displacement of ship comprises a receptacle 2 in communication with the water of flotation by way of the flexible tube 3 and suspended by a loop 5 from one arm of a balance 6 on which the weight of the cargo is indicated from calculations based upon the quantity of water in the receptacle.
Patent GB-1378622-A (GB)
Title: Electric storage battery with automatic water filling
IPC: H01M2/36
Filed: 1973-01-05
Abstract: 1378622 Storage battery with water-filling device JAPAN STORAGE BATTERY CO Ltd 5 Jan 1973 845/73 Heading H1B A battery case 5 formed with cells 8 by partitions 5<SP>1</SP> has a water-filling device 61, for each cell, mounted above the cover 6. These devices 61 are enclosed to form water-supplement chambers 46 separated by walls 44 having interconnecting apertures 7. The device 61 at one end of the battery has a port 4 for connection to a water supply and the device at the other end has a port (not shown) for connection either to the atmosphere or to the port 4 of another battery. Each device 61 has a vertical tube 1 normally functioning as a vent, the lower end of the -tube defining the normal level of the electrolyte. The upper end of each tube 1 is encircled by a depending annular wall 43 forming an air-lock chamber 3 preventing water entering the tube 1 from the device 61. A port 2 in the floor of each device enables water to enter the cell and may also function as an air exhaust port. In Fig. 3 (not shown) a number of batteries are coupled by pipes in series in the water-filling system and the exhaust from the final battery is terminated in an explosion-preventing device. The pipe leading to the explosion-preventing device may be transparent so that the water in it may indicate the electrolyte level in the batteries. Since the ports 2, 4, 7 are at substantially the same level, the individual cells of a battery are filled simultaneously.
Patent GB-847156-A (GB)
Title: Electric dry shaver
IPC: B26B19/12
Filed: 1958-01-09
Abstract: 847,156. Dry shavers. ROTARY. Jan. 9, 1958 [Jan. 25, 1957], No. 887/58. Class 131 [Also in Group XXXV] A dry shaver comprises a casing housing an electromagnetic motor, a protective grid, and a cutter mounted on a support carrying magnetic means forming part of the circuit of the motor and rocked about an axis parallel to the grid by energisation of the electromagnet. As shown, cutters 15, 16 diverge from a sleeve 14, rockable to an extent limited by lugs 19 on a spindle 13, and are urged by springs 20 towards the stamped metal grid 21 which has reinforcing ribs 29. Shanks 12 of the spindle 13 are received in tubular guides 11 of a tube 7 of magnetic material pivotally mounted by self-lubricating rings 8 on a fixed spindle 9. Laminated magnetic strips 6 are secured to the tube 7 and have arcuate faces 6a co-operating with pole-pieces 5 also provided with arcuate surfaces 5a to rock the tube 7 and oscillate the cutters when A.C. current energises the core 3 and windings 4 supported on a U-shaped metal cage 2. Springs 24, 25 seated on a ball 23 mounted on a rod 22 connecting the laminations 6 control the oscillation of the cutters. The grid 21 is secured to the cage 2 by rods 33, bent over ends of the cage providing cutting combs 34 which cooperate with cutters 35 to form a long hair cutter.
Patent GB-617869-A (GB)
Title: Improvements in or relating to the manufacture of activated carbon
IPC: C01B31/08
Filed: 1945-01-11
Abstract: Activated carbon is prepared by removing oil and tarry matter from the following carbonaceous material by a solvent, e.g. petrol, kerosene, benzene, ether, toluene, fusel oil or turpentine, removing the solvent and heating in an open or closed vessel to 100 DEG -700 DEG  C.  The carbonaceous material is lamp-, vegetable-, gas-, acetylene-, chimney- or carbon black, or the product obtained by burning various carbonaceous materials, e.g. oils, fats, turpentine, peat, tar, coal, timber, grass, starch, &c., in a restricted atmosphere and collecting the smoke.  Prior to extraction with the solvent, the material should be neutralized by treatment with dilute acid or alkali, as the case may be.
Patent GB-917705-A (GB)
Title: Improvements in or relating to vibratory screens
IPC: B07B1/28
Filed: 1959-01-09
Abstract: 917,705. Treating tobacco. FFOULKES, A. K. F. Jan. 8, 1960 [Jan. 9, 1959], No. 923/59. Class 130. [Also in Groups II, XIII and XXX] A vibratory screen or conveyer for conditioning, e.g. drying, moistening or heating, tobacco is composed of screen sections 13, 14 attached at their sides to angle strips 15, 16 and tensioned by springs 19 spaced lengthwise and connected to stationary frame members 11, 12. The angle members are suspended on inclined springs 20 fixed at their upper ends to the machine frame, and the screen sections are vibrated in opposition by a motor-driven shaft 28 carrying eccentrics 27 driving connecting rods 26. The rods oscillate T-shaped levers 23 pivoted on bearings 24 and drivingly connected to the sections by links 29, 30. Air is drawn up through the screen sections by a fan 33 driven from the shaft 28 and located below the machine cover 32. The air passes to the fan inlet through a perforated plate 35 and then passes through shoots 40, 41 to a space 42 below the screen and is recirculated. For drying the tobacco the air is heated by steam pipes 43. An auxiliary fan may draw out some of the recirculated air. In Fig. 4 a series of screens 50-52 to which the tobacco is fed in succession has winnowers 54, 55 at the delivery ends, which project the tobacco horizontally over the screens a distance proportionate to the weight of the tobacco. The screens may comprise wire mesh or unperforated overlapping slats 60. Air may be passed downwardly through the screens which may be heated by the passage of low-voltage current therethrough.
Patent GB-416375-A (GB)
Title: Improvements in or relating to mercury arc rectifiers
IPC: H01J13/16
Filed: 1933-01-11
Abstract: 416,375. Vapour arc converters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birming- ham. Jan. 11, 1933, No. 954. [Class 39 (i).] The peripheral outline of the end surface of each anode is of such non- circular shape that the substitution of circular anodes for the non-circular anodes would result in an area of anode end surface which is substantially smaller. The anodes may have a rectangular, sectoral, trapezoidal, square or an oval crosssection and the surrounding shields may be similarly shaped. The shields may be formed by two concentric cylindrical walls, wherein the inner wall extends downwardly to a greater extent and the walls are connected, at intervals, by partitions. The anodes may be mounted on the cover plate, and, when separate shields are provided, they also are mounted on the plate, but are insulated therefrom in order that they may be given control potentials. The inner faces of the anodes are cooled by an extension of the cooling jacket 10, Fig. 2, of the condensing chamber, and oval or circular cooling pipes 11, connected between the jacket 10 and a container cooling jacket 13 are located between the anodes and adjacent the working faces thereof. Water passes from the jacket 10 through the pipes to the jacket 13. In a modification, a helical iron cooling pipe may be provided within the condensing chamber. With a rectangular anode, the grid 14 consists of rectangular strips arranged tangentially to concentric circles, the axes of which coincide with the axis of the container, or arranged parallel to a diameter of the container. With sector-shaped anodes, the grid consists of radial strips or of curved strips, the centres of which are on the axis of the container ; additional radial strips may be provided. The anode seals may be staggered and the anodes are arranged on concentric circles so as to extend between the same radial limits. In a further modification, the container is provided with anode arms of rectangular or oval cross-section, the anodes being similarly shaped.
Patent GB-537989-A (GB)
Title: Improvements in garden cloches
IPC: A01G13/02
Filed: 1940-01-16
Abstract: 537,989. Garden frames. COSTAIN, Ltd., R., and PEACHEY, G. W. Jan. 16, 1940, No. 976. [Class 20 (i)] An extended form of garden cloche comprises frame wires 1 bent to semi-circular or semielliptic form and connected on each side by longitudinal wires 3 secured near to their ends to form a stable structure. A transparent cover is bent over the frame and secured on each side by movable wires 7 held in position by spring clips 6 on the end frame wires, the edges of the cover being clipped between the movable and fixed longitudinal wires. The ends of the frame wires are continued below the longitudinal wires so that they may be pressed into the ground.
Patent HK-56593-A (HK)
Title: Method of making a pressure sealing between two chambers
Inventor: STOFFEL GERD
IPC: B65D83/14
Filed: 1993-06-10
Abstract: In a method of making a two-chamber pressurised package with an outer body which surrounds a pressurisable interior space and forms an opening, an inner body made of a material which forms folds or can be crumpled is inserted through this opening. Before flanging the opening or the like, filling the inner body and fitting a valve in the region of the mouth, the outer body and the inner body are connected to one another in a predetermined area and then folded over together to form a flanged rim. 
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Patent HK-64096-A (HK)
Title: Epoxy resin compositions
Inventor: V GENTZKOW WOLFGANG DR
IPC: C08K13/04
Filed: 1996-04-11
Abstract: Epoxy resin mixtures for the production of prepregs and composite materials which are inexpensive to produce and have good processing properties give, without addition of flameproofing agents, flame-resistant moulded materials of high glass transition temperature if they contain the following components: (A) a phosphorus-free aromatic and/or heterocyclic polyepoxy resin, optionally blended with an aliphatic epoxy resin,  (B) an epoxide-containing phosphorus compound, and (C) an aromatic polyamine as curing agent.
Patent HK-90787-A (HK)
Title: Liquid crystal devices
Inventor: WATERS COLIN M
IPC: G09G3/36
Filed: 1987-12-03
Abstract: The device comprises a layer of long-pitch cholesteric liquid crystal material of positive dielectric anisotropy. An amount of pleochroic dye is contained between two cell walls bearing electrodes and being surface treated to align liquid crystal molecules in a tilted homogeneous structure. The surface alignment and natural pitch of the cholesteric material are matched to provide a molecular twist of between pi and 2pi radians across the layer with a uniform tilt direction. The ratio of layer thickness d divided by pitch p lies between 0.5 and 1.0, d being less than 20 microns. The device may be switched directly between a light transmissive ON state and a non-transmissive OFF state. The device has a sharp transmission/voltage characteristic and negligible hysterisis.
Patent JP-H07202391-A (JP)
Title: Printed circuit board
Inventor: FUJII ATSUHIKO
IPC: H05K3/24
Filed: 1994-01-05
Abstract: PURPOSE:To obtain a reliable, low-cost printed circuit board by a method wherein protruding electrodes having a specific thickness are provided on the electrode parts of the printed circuit board by metal plating. CONSTITUTION:The protruding electrodes of a printed circuit boards are formed by electrolytic or electroless plating. The thickness of the plating is not less than 5mum and not larger than 200mum. If it is less than 5mum, a necessary junction between the protruding electrode and the electrode of a semiconductor device is not obtained. If it is larger than 200mum, the variation of the plating thickness, i.e., the height of a bump 3, is large and, even if the electrodes are jointed with the electrodes of the semiconductor device, some electrodes may have electrical continuity but some may not. It is to be noted that, if the bump 3 formed by plating is heated at a temperature higher than the melting point of the plating metal to be melted and then formed into a semispherical shape, the bump 3 is bonded to the electrode more firmly. Further, if low melting point metal such as lead or tin is used as the plating metal, the relatively economical and highly reliable bump 3 can be obtained.