baber/WOPTO huggingface dataset:
Patent GB-158337-A (GB)
Title: Process of treating coal tar
IPC: C10C1/04
Filed: 1919-10-31
Abstract: 158,337. Anderson, W., and Meikle, J. Oct. 31, 1919. Resins.-Coal tar is treated for the production of a resinuous solid containing hydrocarbons mixed, it is believed, with oxidized hydrocarbons; other products are gas, carbon, and a liquid free from naphthalene. The tar is injected into a tubular heater by means of steam in excess of that required to effect complete vaporiza. tion at the temperature employed, preferably 450-600‹ C. Carbon is separated from the vaporous products, and the resinous solid and the liquid body are obtained by fractional condensation. The operation is effected by passing the tar through a pipe 2 to preheating tubes 3, and injecting the tar by superheated steam into a tubular heater 4. The products pass to an expansion chamber 6 in which deposition of carbon may be accelerated by introducing a counter-current of steam by a pipe 7. The liquid products may be re-run through the apparatus.
Patent GB-170010-A (GB)
Title: Improvements in electrical entertainment devices
IPC: G10F1/00
Filed: 1921-10-10
Abstract: 170,010. Dinnebier, C. Oct. 9, 1920, [Convention date]. Theatrical appliance s.-Relates to apparatus by which a violin &c. 1 may be made to produce any desired sound in a mysterious manner. According to the invention the sound produced by an instrument 28, the human voice, &c., is transmitted by a telephone instrument 27 to a loud-speaking receiver 2 in the violin 1. Two pads 8, 9, containing metallic filings, are connected to the terminals of the receiver 2 and are arranged so as to be penetrated by two pins fixed to a plate 11 on the performer's shoulder. These pins are connected by wires &c, 25, 26 with/the transmitter 27. In a modification, the violin 1 is placed on a stand provided with pins, instead of being held by a performer.
Patent GB-1263310-A (GB)
Title: The preparation of very pure cryolite
Inventor: CUNEO GIOVANNI
IPC: C01F7/54
Filed: 1969-05-27
Abstract: 1,263,310. Cryolite. MONTECATINI EDISON S.p.A. 27 May, 1969 [27 May, 1968], No. 26797/69. Heading C1A. Cryolite is prepared by reacting Na 2 SiF 6  with a 20-30% excess of dilute NH 4 OH at 35-80‹ C. so that the final pH is 7À9-9À2, separating the resulting solution of NaF and NH 4 F from precipitated SiO 2 , adding a ferric salt to flocculate more SiO 2  and remove phosphate as FePO 4 , the amount of Fe being at least 0À3 pts by wt. per 100 pts F, and being at least 5 times the amount necessary to precipitate all the phosphate, reacting the solution with a deficiency of NaAlO 2  to precipitate cryolite, and recycling all or part of the mother liquor containing 3-6 g./l. F. The Na 2 SiF 6  may be prepared by reacting H 2 SiF 6  with a 10% excess of NaCl. The SiO 2  wash waters may be recycled. The product may be washed, dried and calcined at 650‹ C. The process may be operated batchwise or continuously.
Patent GB-227933-A (GB)
Title: Improvements in electrical condensers
Filed: 1923-10-26
Abstract: 227,933. Trump, E. H. Oct. 26, 1923. Condensers.-A variable condenser comprises a pair of rigid plates B, Fig. 1, supported in insulating frames A and covered by a layer of dielectric material C cemented thereto, a pair of resilient flexible plates D bent as shown, and screw means G operated by a knob H carrying a pointer J, for drawing the frames together so as to increase the capacity by flattening the plates D on to the plates B. The flexible plates D are connected to a lead P and the rigid plates are provided with separate leads N, O so that whilst the maximum capacity may be obtained by using the lead P in conjunction with the leads N, O connected together, a smaller maximum value may be obtained by leaving the lead P disconnected and using the leads N, O. The law of the condenser may be varied by giving different initial curvatures to the plates D. In another form, Fig. 3, the rigid plates are bent as shown and the flexible plates D are operated by an elliptical cam W on the adjusting spindle G. Alternatively a flat resilient plate may be mounted with its middle portion in contact with a sheet of dielectric material covering a curved rigid plate so that by applying pressure to the outside edges of the resilient plate it may be bent so that its two halves approach the curved rigid plate.
Patent GB-366961-A (GB)
Title: Improvements in the treatment of fibrous material and in agents therefor
IPC: D06P1/645
Filed: 1930-09-09
Abstract: Open-chain oxyalkylethers of aliphatic or mixed aliphatic cycloaliphatic amines containing one or more oxyalkyl groups are employed as wetting and penetrating agents in processes for treating fibrous materials, such as textiles or leather, in aqueous baths. The ethers may be employed in the form of their salts with higher fatty acids, with or without other dispersing, emulsifying, wetting or cleansing agents, e.g. soaps, turkey red oils, salts, esters, amides or ester-amides of alkylolamines with fatty acids, sulphonated fatty acids or sulphonic acids of aromatic or aliphatic compounds, or with addition of organic solvents soluble or insoluble in water.  In examples, (1) woollen piece goods are dyed evenly in a bath containing the monooxyethylether of triethanolamine (example (1) of Specification 364,000), Wool Fast Yellow 3G, Anthraquinone blue SR extra, the sodium salt of 4-o-sulpho-p-tolylamino-1-anthra-N-methylpyridone (example B of Specification 486/08, [Class 2, Acids and salts, Organic &c.],), Glauber's salt and sulphuric acid; (2) woollen hat bodies are dyed in a bath containing Naphthylamine black 10 B, Glauber's salt, acetic acid and the dioxyethyl ether of triethanolamine, (3) a stripping bath for hat bodies made from artificial wool is charged with formic acid and the dioxyethylether of diethanol-mono-b -ethylhexylamine, which has been preferably neutralized with oleic acid, oleic sulphonic acid, or the sulphonic acid of stearic acid, or with turkey-red oil acid or the acid sulphuric ester of cetyl alcohol, the goods are introduced into the bath, zinc formaldehyde-sulphoxylate is added and the whole boiled; (4) the dioxyethylether of diethanol-b -ethylhexylamine is added to a bucking liquor for cotton material, and (5) waste wool containing oil and fat is washed in a bath containing soap and the tripropyleneglycolether of triethanolamine (obtained by introducing propylene oxide into triethanolamine solution) or the triethyleneglycolether of tripropanolamine; instead of the ethers their salts with fatty acids, e.g. stearic acid, may be used.
Patent GB-1214341-A (GB)
Title: Improvements in or relating to objectives of variable focal length
Inventor: COOK GORDON HENRY
IPC: G02B15/16
Filed: 1968-06-06
Abstract: 1,214,341. Zoom lenses. RANK ORGANISATION Ltd. June 4, 1969 [June 6, 1968], No.26981/68. Heading G2J. A zoom lens has a divergent front, normally stationary, member 1, movable members 2, 3 and 4, and a stationary rear member 5, wherein the front member is divided into front and rear parts of focal length f A1  and f A2  respectively, and focusing is effected by movement of the rear part thereof, the following conditions being fulfilled: - where F A  is the focal length of the complete front member for an infinitely distant object. Optical data is given of three examples.
Patent GB-1497457-A (GB)
Title: Semiconductor-liquid phase epitaxial growth method and semiconductor device manufactured using the same
IPC: C30B19/00
Filed: 1975-06-25
Abstract: 1497457 Epitaxial growth NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 25 June 1975 [4 July 1974] 26997/75 Heading B1S A method of liquid phase epitaxial growth of gallium arsenide or aluminium gallium arsenide comprises allowing a melt to contact a substrate, using a slide boat, in the presence of a reducing gas or inert gas and forming an epitaxial growth layer of Ga As or Al Ga As or an Al Ga As layer while in the presence of a mixed gas of either the reducing gas or inert gas and one compound selected from GaCl 3 , AsCl 3 , HCl, NH 4 F AlCl 3  and NH 4 Cl. The method is particularly suitable when the Al Ga As layer has been previously exposed to air. As shown in Fig. I suitable apparatus comprises a slide boat 2 and 3 in reaction tube 1 containing 4 melts I-IV and substrate 5. A source of gallium 8 is provided in basket 7, and hydrogen gas via controller 12 and As Cl 3  15 from bubbler 13 is introduced into the reaction tube 1 from tube 14, the mixture serving to improve the crystal growth during the sequential epitaxial growth from melts I-IV.
Patent GB-946958-A (GB)
Title: A method of and an apparatus for the electrolytic production of chromium of a high degree of purity
Inventor: BRANDES ERIC ADOLF
IPC: C25C1/10
Filed: 1961-07-26
Abstract: Pure chromium is electrodeposited from an aqueous fluoride bath to which is added a lead salt such as PbCrO4 and/or in which the anode being used is coated with PbO2, e.g. by anodic treatment in a saturated PbF2 solution.  The anode is of a metal or alloy, e.g. platinum, palladium or their alloys, that is not attacked by the bath.  The bath is preferably contained in a container of polythene or P.T.F.E.  A copper cathode may be used. An example of a fluoride bath is 250 g/l CrO3 dissolved in 5 g/l HF, preferably saturated with PbCrO4.
Patent GB-697628-A (GB)
Title: Liquid cleaned electrostatic precipitator
IPC: B03C3/45
Filed: 1950-11-07
Abstract: 697,628. Electrostatic filters. AIR PREHEATER CORPORATION. Nov. 7, 1950 [Nov. 25, 1949], No. 27170/50. Class 39(i) An electrostatic precipitator comprises a conduit 10 made up of vertically disposed tubular members 12, 20 with intermediate chambers, the tubular members 12, 20 forming grounded collecting electrodes and enclosing high potential electrodes 16, 22, electrode leads 24 extending into some of the chambers, insulators 28 for the leads 24, nozzles 33 for introducing moisture in the form of steam into the dust laden gas, water cooling jacket 36 for tubular members 12, 20 to form condensation surfaces 44, annular troughs 48 and drains 50 for collecting and removing the stream of condensed liquid and dust particles flowing down the tubular members 12, 20, and heating coils 32 for keeping insulators 28 dry. Rods 24, 26 also serve as electrode supports. The particles removed may be ash or dust, especially from gases of combustion. The ionization section is short and the collector section much longer since the particles are quickly ionized but only travel slowly to their collecting surfaces. The steam and cooling water flow may be regulated to give any desired thickness of water film. Condensable vapour originally present in the gas may also be removed in this manner. Gases forming solid or liquid compounds with water, such as SO 2  or NO 2 , may also be removed. Some steam condenses on collector electrode 22 and keeps it clean..
Patent GB-1091041-A (GB)
Title: Improvements in or relating to road marking compositions
Inventor: CAMPBELL SIDNEY GLENROY
IPC: C09D157/02
Filed: 1963-07-09
Abstract: A road-marking composition for application in a hot flowable condition comprises a thermoplastic mixture of from 15 to 30% by weight of a binder which itself consists of 45 to 100% by weight of a polymerized unsaturated hydrocarbon which can be repeatably brought to a flowable condition by melting or softening and 0 to 55% by weight of a heat-stable hydrocarbon oil having a flashpoint of at least 320 DEG  F. (open) and a viscosity of up to 5 poises at 25 DEG C., the composition further comprising from 0 to 25% by weight of filler and the remainder being aggregate.  Suitable polymers include polymerized cracked petroleum gases which may be blended with polyethylene and mineral oil. Suitable aggregates include crushed flint, crushed marble, dolomite and sand.  Fillers include calcium carbonate, crushed mica, bentonite, pigments such as titanium dioxide and chrome yellow, and for light reflecting purposes the glass beads known as ballotini.
Patent GB-165700-A (GB)
Title: Improvements in or relating to nuts and bolts or the like
IPC: F16B39/08
Filed: 1920-09-24
Abstract: 165,700. Shaw, G., and Thorp, T. E. Sept. 24, 1920. Locking nuts. - A nut-lock comprises a stud a provided with a screw - thread of opposite hand to that of a bolt b and having holes a' in its head through which a pin d is passed which engages in radial notches in the head of the nut c. The bolt b mav be eccentrically bored to accommodate the stud a. In a modification, the stud a has a square head which is engaged by a washer having radial lugs which fit into the radial notches in the nut. The pin d may also be replaced by a U-shaped pin which engages grooves or flats on the side of the stud a.
Patent GB-721575-A (GB)
Title: Improvements in or relating to packs
Inventor: JONG ARTHUR BERNARD ELTON DE
IPC: B65D57/00
Filed: 1952-10-29
Abstract: 721,575. Packaging. HORLICKS, Ltd. Oct. 29, 1953 [Oct. 29, 1952], No. 27206/52. Class 94 (1). A package containing an elongated pile of units of a product such as tablets 9, Fig. 3, or 19, Fig. 7, comprises a container 18, Fig. 7, having a series of spacers 20 extending across the width of the container with their peripheral portions secured to the inner surface of the container, the spacers 20 dividing the container into a series of air-tight compartments each housing one unit of the product. The container shown in Fig. 7 is a preformed light weight metal tube, that shown in Fig. 3 is made by enclosing the units and spacers in two sheets 13 of metal foil laminate each of which is longer than the pile of tablets 9 and has free end portions 12 and each of which is slightly greater in width than half the circumference of the discs 10, 11 so that there are free side edge portions 14. The peripheries of the disc are sealed to the foil laminate, and the free edges 12, 14 are sealed together by heat sealing. Alternatively the pile of tablets and spacers may be wrapped in a single sheet of foil. Cuts or score marks 15, 23 may be provided to facilitate opening and the spacers may be provided on one flat surface with a tab by which it may be pulled away.
Patent GB-713201-A (GB)
Title: Electric seam welding apparatus
IPC: B23K11/06
Filed: 1951-11-20
Abstract: 713,201. Transformers. BABCOCK & WILCOX TUBE CO. Nov. 20, 1951 [Jan, 2, 1951], No. 27244/51. Class 38(2) [Also in Group XXII] An electric seam welding apparatus comprises a welding transformer having a secondary winding with its terminals formed as a pair of insulated concentric axially adjacent frusto conical surfaces on which a pair of rotary electrodes are secured. In an embodiment a transformer 10 having a pair of housings 27, 28 forming the secondary and enclosing the primary winding 30 and a core 35, is supported rotatively in bearings 13, 14 in a bracket 11. A sprocket 31 is fixed to the housing 27 and the housing is secured to'a cylindrical member 36. The housing 28 is secured to a cylindrical member 37 telescoped on member 36 but insulated therefrom by sleeve 39. A ring 44 with a sloping surface is secured to member 37 while a cap 45 bolted to the member 36 provides a surface 51 as a continuation of the surface of ring 44. These two surfaces are insulated and form a mounting for electrodes 15, 20 which are insulated by a disc 55 and clamped by a ring 52 on the cap 45. To cool the secondary, coolant is supplied from a rotating union to a tube 67 in a manifold 60 secured to the transformer, to passages 68 in the manifold 60 and from a manifold 70 to interrupted annular tubes 77, 78, 86,87 in the housings. 'The coolant is returned from the tubes 77, 78, 86, 87 to the manifold 70 and then through a thermostat 75 into passages 72 in the manifold 60 to an exit passage 71. Coolant also flows from the tube 67 through a passage 41 in the member 36 to passages 47, 48, 49 in the cap 45 to return along passages 42, 43 in the members 36, 37, to annular passages 104; 108 in manifold 60 and by valves to the outlet passage 71. The primary winding 30 is in four .sections of tubular copper coil and coolant flows from passage 68 in the manifold 60 to a tubular manifold 116 which has connections to one end of each section. The other end of each section is connected through a thermostat 120 to a manifold 124 connected to passages 72 and exit passage 71. A stationary post 130 supports a plate 135 holding brush rings 137, 138 which each support three brushes against commutator rings 155, 160 which rotate in a holder 151 with the transformer. The primary sections are in series and are connected to the rings 155, 160 through the cooling inlet and outlet pipes. Brushes and rings for the thermostat cooling control circuit are employed.
Patent GB-362977-A (GB)
Title: Improvements relating to hose pipes having tubular sheaths
IPC: F16L11/08
Filed: 1930-09-12
Abstract: 362,977. Hose pipes with woven tubular sheaths. SCHLEICHER, K., 13, Schwarzburgerstrasse, Bad Blankenburg, Thuringia, Germany. Sept. 12, 1930, No. 27257. [Classes 142 (ii) and 142 (iv).] A hose pipe has one or more woven sheaths 2, 6, surrounding the rubber core 1, Fig. 2, or cores 1, 4, Fig. 3, the warp threads of each sheath extending spirally instead of being parallel to the axis of the tube. The weft or warp may be of wire, or the fabric may comprise various combinations of yarns or wire, pure silks, wild silks, artificial silks, vegetable fibres or animal fibres. To twist the warp threads, the rubber core is passed over a long mandrel, which is given an uniform feed and also a rotary movement during the weaving.
Patent GB-716089-A (GB)
Title: Control systems for electrically driven waste disposal apparatus
IPC: E03C1/266
Filed: 1952-10-31
Abstract: 716,089. Waste disposal apparatus. GENERAL ELECTRIC CO.. Oct. 31. 1952 [Oct. 31. 19511. No. 27431/52. Class 59 [Also in Group XXXVII] Relates to waste disposal apparatus having comminution means driven by a split phase motor the circuit of which is automatically opened when the motor current falls to its noload value. so indicating that the charge of waste material in the grinder has been disposed of. The motor has running winding 31R and starting winding 31S, a capacitor 34 being connected with the starting winding. When armature 47 is manually displaced to complete a circuit through coil 46, current passes through a thermal overload 44 and coil 38 to the winding 31R Armature 40 then rises to complete the circuit of the starting winding and. at the same time. a coil 35 is energized to open a valve for supplying water to the comminution chamber. As the current of the motor falls to its normal running value, the arm 41 drops to disconnect the starting winding, the valve coil 35 and the switch coil 46, however, remaining at the hold-in level. At the final stages off waste disposal the motor is under substantially noload so that the armature 47 drops to open the circuits of the motor and the valve coil The action of moving the armature 47 to bridge contacts 54, 55, energize coil 46, and start the waste-grinding operation, may be effected by manipulation to a predetermined position of a closure member within the inlet sleeve to the comminution chamber. A suitable armaturelifting device comprises a lever 57 having legs straddling the armature, each leg being provided with a slot 57.3 receiving a pin 58 fixed to the armature. Lever 57 is firmly secured to a rock shaft 60 passing into the interior of the apparatus wherein there is a crank member having an arm 63.1. The armature 47 is biased to the open-position by means of a spring 64. The closure member may be inserted and turned to a predetermined position in which a portion of a cam member 85 engages the crank arm 63.1 to raise the armature 47 and energize coil 46, the motor circuit being mechanically held closed until the closure member is returned to the "off" position. To set the apparatus for automatic operation, the closure member is inserted and turned to a position in which a different portion of the cam 85 engages the arm 63.1, the pin 58 being in a mid-way position in the slot 57.3. In this position. the power of the coil 46 maintains the armature in the closedcircuit position against the weight of the armature until the current demand drops to the noload value. Specification 689,701 is referred to.
Patent GB-424662-A (GB)
Title: Improvements in coils for electrical purposes
IPC: H01F5/06
Filed: 1933-10-05
Abstract: 424,662. Electromagnets; transformers. WESTMINSTER TOOL & ELECTRIC CO., Ltd., 116, Putney Bridge Road, London, and HOOK, G. R., Tenterden, Ruskin Drive, Worcester Park, Surrey. Oct. 5, 1933, No. 27442. [Classes 35 and 38 (ii)] Strips of paper, silk, celluloid, &c. to be wound between the layers of the coils of electromagnets, solenoids transformers, &c. for insulation are formed with serrated edges which project beyond the ends of the coil and are bent over to overlap and protect the ends of the coil. The serrations are shaped as shown, with rounded angles. Several strips may be formed at once by perforating, pressing &c. a sheet of paper along appropriate lines so that it separates into a number of serrated strips as it is wound onto a number of bobbins on a common spindle. Cutting the edges of a strip after winding is disclaimed. The serrations may be coated with adhesive so as to stick together when bent over and form a continuous disc.
Patent GB-279444-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J35/08
Filed: 1927-10-17
Abstract: 279,444. British Thomson-Houston Co., Ltd., (Assignees of Coolidge, W. D.). Oct. 20, 1926, [Convention date]. Vacuum tubes; R÷ntgen-ray tubes. - In a cathode-ray tube, the electrons from a cathode are focussed to a beam and pass through two or more pairs of tubular electrodes connected in cascade so that the electrons are given successive accelerations; means may be provided for preventing acceleration of positive ions. As shown in Fig. 1, a bulb 3 containing a filament cathode 8 is separated from a bulb 4 containing an anode 7 permeable to electrons, by a tubular electrode 5, which has a window permeable to electrons but impermeable to positive, ions, and is maintained at an intermediate potential by a connection 15 between the secondary winding 12, 13 of a transformer or induction coil supplying the anode. The window in the electrode 5 consists of a thin sheet of nickel foil, of molybdenum or copper, and is secured between two flanged tubular members 20, Fig. 2, of nickel-iron or other alloy having the same coefficient of expansion as the glass arms 22 to which they are sealed. Tubular shields 24 for protecting the glass arms from electron bombardment are secured to the members 20. The electron stream is confined to the electrode 5 by a solenoid 30 energized by a battery or means in phase with the discharge. A similar solenoid 33 is arranged near to the anode. The cathode may consist of a filament with a focusing device, and the anode may be of the type described in Specification 251,635 consisting of a thin metal sheet supported by a grating. Side chambers 28 containing a gas-absorbing medium, such as charcoal cooled by liquid air, may be provided. More than two bulbs and permeable intermediate electrodes mav be used, and the bulbs may be separated by an air space between adjacent permeable electrodes. When used as a R÷ntgen-ray tube, a target may be mounted near the anode and outside the tube, or the anode may be made of a metal such as tungsten having a high atomic number. In a modification, the secondaries 12, 13 and their primaries are connected at their mid-points with the magnetic cores, and the primaries are connected through insulating transformers with the mains, a rectifier and a resistance load being provided for absorbing the idle half-waves. Specification 207.262 also is referred to.