baber/WOPTO huggingface dataset:
Patent GB-203722-A (GB)
Title: Improvements in and relating to the treatment of metallurgical gases containing sulphur dioxide
IPC: C22B7/02
Filed: 1922-03-10
Abstract: 203,722. White, A. E., (American Smelting & Refining Co.). March 10, 1922. Sulphur dioxide.- Substantially pure sulphur dioxide in solution or as a gas and of predetermined strength is obtained from intermittently supplied metallurgical gases by passing the cooled scrubbed gases in counter-current with water or a solution of dioxide prepared at a previous stage in the process. The cooled scrubbed furnace gas enters near the bottom of a tower 310 and is enriched by gas discharged from a solution of sulphur dioxide which is sprayed from a pipe 317 and falls on a splash board 321. The enriched gas is in part withdrawn through a pipe 314<A> and the remainder is re-absorbed in a packed tower 323 which receives the spent solution from the tower 310. Removal of sulphur dioxide from solution in the tower 310 is facilitated by the pump 314 and also by the entrance of the dilute furnace gases. Water or a solution of sulphur dioxide prepared by passing scrubbed furnace gases through an absorption tower is supplied bv means of a pipe 329 and a solution of sulphur dioxide may be withdrawn through a pipe 327. When a gaseous mixture containing oxygen and sulphur dioxide is desired, air is admitted through a pipe 335. Sulphur dioxide may be removed from solution by boiling and dried by passing up a packed tower irrigated with strong sulphuric acid prior to being liquefied. Before passage to the drying tower, the hot liberated sulphur dioxide is used to preheat a portion of the solution to be discharged, and the remainder is preheated by the spent solution coming from the boiling tank. The spent solution is used in the treatment of further quantities of furnace gases. In a modification, the solution is freed from sulphur dioxide by passing air at atmospheric temperature.
Patent GB-786015-A (GB)
Title: Improvements in or relating to cushion supports for the metatarsal arch of the foot and to foot aids incorporating such supports
IPC: A43B7/22
Filed: 1956-03-07
Abstract: 786,015. Orthopaedic appliances. SCHOLL MFG. CO., Ltd., [formerly SCHOLL MANUFACTURING CO., Ltd.]. March 7, 1956 [March 7,1955],no. 7226/56. Class 81 (2). A metatarsal support comprises a sheet 4 of cushioning material, such as foam latex, carrying a support pad 6 of similar material and provided with a loop 5 for engagement with an intermediate toe. The pad 6 is secured to the sheet 4 by pressure sensitive adhesive so that, if necessary, it can be removed and a thicker or thinner one can be substituted. The undersurface of the sheet may be covered with a fabric backing.
Patent GB-1079755-A (GB)
Title: Screw thread cutting apparatus
IPC: B23G1/46
Filed: 1964-08-21
Abstract: 1,079,755. Tapping device. SVENSKA PRECISIONSVERKTYG A.B. Aug. 21, 1964 [Aug. 22, 1963], No. 7279/67. Divided out of 1,079,754. Heading B3N. The description is identical to that of the parent Specification but the claims are directed to a screw-thread cutting apparatus having a slipping clutch drive formed by an input 112, Fig. 1, which drives a ring 132 through a ball 128, the ring having face cams which cooperate with similar cams 134 on a second ring 124 which drives a part 16 through a ball 120, rings 132, 124 being interconnected by a coupling 18.
Patent GB-195070-A (GB)
Title: Improvements in the framework for buildings
IPC: E04B1/18
Filed: 1923-03-14
Abstract: 195,070. Forssell, C. A. March 15, 1922, [Convention date]. Columns; beams.- The framework of a building consists of reinforced - concrete columns and steel beams rigidly connected together. A single beam such as g is passed through the column and grouted in, and the column bars i are bonded across the beam at the fixing points. For crossed beams. the ends of the transverse beams e, f are secured in brackets j which are reinforced by bars k.
Patent GB-833619-A (GB)
Title: Process for vapor phase nitration
IPC: B01J19/00
Filed: 1958-03-06
Abstract: Alkanes are nitrated by introducing a mixture of an alkane and nitric acid simultaneously with a spray of a molten salt or mixture of salts having a temperature of from 200 DEG  to 550 DEG  C. into a reaction zone and removing gaseous reaction products from the reaction zone. It is preferred to employ a eutectic mixture of potassium and sodium nitrates, since this mixture can be maintained in the molten state over a range of 260 DEG  to 550 DEG  C. A eutectic mixture of sodium, potassium and lithium nitrate may also be used.  The alkane and the nitric acid may be used in a mol. ratio ranging from 1 : 1 to 40 : 1. The amount of molten salt used is preferably at least 30 times the weight of alkane and nitric acid introduced. The process is particularly useful for the nitration of the lower alkanes, methane, ethane, propane, butane, pentane and hexane.
Patent GB-592252-A (GB)
Title: Improvements in or relating to the manufacture of coating materials
IPC: C09D7/00
Filed: 1945-03-23
Abstract: Amorphous, finely divided silica obtained by oxidation of silicon or silicon monoxide in the vapour state is incorporated into coating materials.  The silica is conveniently obtained in the production of ferrosilicon in which excess siliceous material is reacted with iron and carbon yielding silicon which combines with atmospheric oxygen forming silica in a finely divided state. Alternatively, coarse silica or quartz may be reduced and the issuing vapours oxidised.  An example describes a varnish comprising silica dispersed in oil length chinawood oil-linseed oil varnish.ALSO:Coating compositions have incorporated therein silica obtained by the vapour phase oxidation of silicon or silicon monoxide (see Group III).  Examples describe (1) a varnish comprising silica, oil-modified glyceryl phthalate resin, toluene and driers; (2) and (3) lacquers comprising alkyd plasticising resin or blown castor oil, ethyl, butyl and amyl acetates, butyl alcohol, naphtha, toluene, nitrocellulose wet with ethyl alcohol, maleic acid modified ester gum and silica and (4) an enamel comprising oil modified alkyd resin, xylene, lampblack, pigments, driers and silica.
Patent GB-1375112-A (GB)
IPC: B65G35/00
Filed: 1972-02-17
Abstract: 1375112 Conveying sheet material hanging in loops STORK AMSTERDAM NV 17 Feb 1972 7561/72 Heading B8A Material 3 is fed in loops 12 along guides 4 extending through a steam treatment chamber by each loop being picked up by a respective rod 10 carried by spaced chains 8 of an endless conveyer which passes over guide wheels 9 and deposits the rods 14 successively at the beginning of the guides 4. According to the invention, each end of each rod 10 is carried on its respective chain by a shoe 20 which normally encloses the rod end on four sides, two of which are provided by two bolts 30, 31, arranged to be movable so that at the positions at which the rods 10 are deposited on, and picked up from, the guides 4 by the conveyer, the rod ends are enclosed on three sides only. The other two side enclosures are provided by the opposed sides 21 of a channel forming the shoe 20 proper. A member 26 provides guides for the bolts 30, 31. Each of the latter has a respective follower roller 32 which co-operates with a respective cam guide slot 34. One guide slot 34 guides one of the rollers 32 at the beginning of the guides 4, and another guide slot (in a different lateral plane from the first slot) guides the other roller 32 at the end of the guides 4 (where the rods 10 are picked up again by the endless conveyer).
Patent GB-551581-A (GB)
Title: Improvements in or relating to coated fabrics or reinforced paper
IPC: D21F11/00
Filed: 1941-06-16
Abstract: 551,581. Reinforced paper; compound fabrics. BAILEY, F. W., CLAYTON, F. H., and BROCKLEHURST-WHISTON AMALGAMATED, Ltd. June 16, 1941, No. 7626. [Classes 96 and 140] Textile sheet or web, e.g. bolting silk, canvas, sacking &c. of cellulosic, animal, or artificial fibres and which may have a raised nap is supported on a stationary or moving woven wire, e.g. on the wire cloth of a Fourdrinier papermaking machine, whilst pulp, e.g. of cotton, bast fibre, wood, plant stems, or leaves, is felted, with the aid of suction, on to the fabric to form a reinforced paper. Silk, wool or asbestos, and china clay, rosin, rubber latex, aluminium sulphate or colouring matter may be added to the pulp, and the reinforced paper may be impregnated &c. with size, oils, waxes, &c. and may be finished by calendering or embossing. The fabric may be of open mesh so that some of the pulp is drawn through it and felted on the under surface thereof, or the area of the openings in the mesh of the fabric may be varied by variations of the thickness of warp or weft or of their proximity so that the thickness of pulp deposited may be varied, or the fabric may be printed or stencilled with a design to show through the paper. An electrically conducting strip or wire may be included in the pulp deposit or in the fabric. The reinforced paper may be relatively free from change of length or breadth with change of humidity. For mechanical or ornamental purposes the pulp may be prevented from felting on the fabric over certain areas as by filling up the mesh so that water does not drain through these areas or by preventing the fabric becoming wetted-out at those parts, or alternatively the pulp may be released locally from the fabric whilst it is wet. Two or more plies of reinforced paper may be united by adhesives, with the fabric or pulp faces in contact. Individual sheets of the reinforced paper may be made by placing fabric upon a wire gauze supported on a grid above a funnel which may be filled with water and drained to provided suction which may be increased by connection with an aspirator, or the paper may be made continuously by feeding the fabric to the travelling wire cloth near the breast roll in which case a vacuum couch roll and a dandy roll may be used. Specification 479,141 is referred to. Reference has been directed by the Comptroller to Specification 23063/99, [Class 96].
Patent GB-1597914-A (GB)
Title: Cyclic hydrocarbon perfluorination process
IPC: C07C23/28
Filed: 1978-02-27
Abstract: A process for the preparation of perfluorinated, polycyclic hydrocarbons in which, as starting material, partially fluorinated, non-aromatisable, polycyclic hydrocarbons are employed and are fluorinated in the gas phase by means of cobalt trifluoride in a two-step process. In the first step of the gas-phase fluorination, the temperature is not more than 50 DEG C above the boiling point of the fluorinated material, and the degree of fluorination, based on the perfluorination, is not more than 75 - 95%. In the second step, the fluorination is continued at a higher temperature to give the perfluorinated, polycyclic hydrocarbon. In this way, a perfluorination is successfully carried out without the cyclic structure of the polycyclic hydrocarbon being opened. The partially fluorinated starting material can be prepared by fluorinating an optionally partially chlorinated or brominated polycyclic hydrocarbon or a derivative thereof containing carbonyl groups, carboxyl groups or hydroxyl groups in the liquid phase.
Patent GB-1068981-A (GB)
Title: Cold separation of gas mixtures
IPC: C01B3/50
Filed: 1966-02-23
Abstract: 1,068,981. Cold separation of gas mixtures. CONCH INTERNATIONAL METHANE Ltd. Feb. 23, 1966 [March 19, 1965], No. 7851/66. Heading F4P. Separation of a compressed hydrocarbon gas mixture, e.g. refinery tail gas comprising methane and heavier saturated and unsaturated hydrocarbons into liquid and gaseous fractions is effected by cooling in an indirect heat exchanger (24) traversed by liquefied natural gas means so as to partly condense the feed mixture, withdrawing from a separator (34) uncondensed feed gas through a line (38), compressing at (40) to a pressure above that of the feed gas, cooling in exchanger (24) and in an exchanger (46) also cooled by L.N.G. withdrawing -the condensed C 2  and C 3  hydrocarbons from a separator. (4) through a line (54) and withdrawing uncondensed methane contaminated with hydrogen, nitrogen and carbon monoxide through a line (59). Crude condensate from separator (34) is expanded at (36) into a de-methanizer column (20) then fed through a line (67) to a de-ethanizer column (4) from the base of which crude liquid propane is withdrawn through a line (88) and passed into a propylene splitter column (92). Product liquid propane is discharged from column (92) through a line (110) and gaseous propylene through a line (96) and a condenser (102) to be discharged as product liquid propylene through a line (106). The condensed C 2 , C 3  hydrocarbons in line (54) are also passed to de-methanizer column (20) and from thence to de-ethanizer column (4). Gaseous ethylene and ethane withdrawn from column (4) are passed through a line (68) to an ethylene splitter (16) from which gaseous ethylene is withdrawn through a line (70) expanded at (72) condensed, at (74) and discharged as product liquid ethylene through a line (78). Gaseous ethane is also withdrawn from splitter (16) through a line (80) and after being condensed at (82) is discharged by a pump (84) as product through a line (86). The coolant L.N.G. which is admitted through a line (112) and is pressurized by a pump (114) and after being warmed in exchangers (24, 26) serves to cool condensers (82, 102) and reflux coils (126, 128) in columns (4, 16). To the so-vaporized natural gas in line 144 is added a gaseous stream of methane, hydrogen, carbon monoxide and nitrogen withdrawn from the head of de-methanizer (20) through a line (66) and a compressor (65) and a consumer line (146).
Patent GB-1413992-A (GB)
Title: Heat exchanger
IPC: F28F3/00
Filed: 1972-02-21
Abstract: 1413992 Heat exchangers COURTAULDS Ltd 20 Feb 1973 [21 Feb 1972] 7877/72 Heading F4S In an apparatus in which a vertical sheet of flexible thermoplastic film separates two downwardly flowing liquids in heat exchange with one another through said sheet, the lower end of the sheet is turned upwardly to form a channel for collecting one of the liquids. Preferably as shown there are two such sheets 18, 19 forming between them a channel (supplied by a pipe 13) for one of the liquids. Each sheet in fact comprises a major part of the wall of a tube of flattened cross-section. Hence two such tubes 1, 2 respectively are provided being supplied with the other of the two liquids by respective pipes 7, 8. At its lower end, each tube has its wall cut and folded back (Fig. 3) to enable the collecting channels 29, 30 to be formed. The liquid discharges from each end of the channels 29, 30 into collecting troughs (22, 23, Fig. 1). Splash guards (16, 17, Fig. 1) formed from a tube (14) with portions thereof cut away are suspended in the space between the sheet portions 18, 19.
Patent GB-435193-A (GB)
Title: Improvements in and relating to electric welding apparatus
IPC: B23K11/24
Filed: 1934-03-13
Abstract: 435,193. Switching systems for resistance welding ; valve relaying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and WHITELEY, A. L., 16, Vernon Avenue, Hillmorton Paddox, Rugby. March 13, 1934, No. 7946. [Class 38 (iv)] [See also Group XL] In welding-apparatus timed application of the welding current is obtained by a control circuit comprising a welding contactor 1, the coil of which is controlled by a push button 2 in series with the contacts 6 of a relay, the coil 5 of which is in the anode circuit of a gridcontrolled arc discharge valve 4. The valve is rendered normally nonconducting by an out-ofphase voltage applied to a condenser 12 in its grid circuit from a winding 10 on a transformer 11, through a contact 9 which is closed when the contactor 1 is open. The grid is thus negative with respect to the cathode. An in-phase voltage obtained from a winding 14 is also applied to the condenser 12 through a potentiometer 3 and resistance 15 which is such as to limit the voltage so that it does not exceed the effect of winding 10. When the push-button 2 is closed, contactor 1 is closed and a holding contact 21 made around the switch 2. Contact 9 is opened and the negative potential on the grid of the valve is gradually discharged over a resistance 16 until, after a predetermined time, a positive potential appears on the grid sufficient to render the valve conductive and operate relay 5 to open the welding circuit. At the same time a contact 7 is closed so as to keep the valve conductive until the switch 2 is opened so as to prevent the occurrence of a second weld. The welding time is determined by the settings of the resistances 3 and 16. A condenser 19 and resistance 18 are shunted around the relay coil 5 to assist its operation on half wave current. Specification 390,309 is referred to.
Patent GB-472171-A (GB)
Title: The manufacture of azodyestuffs for wool
IPC: C09B29/00
Filed: 1936-03-17
Abstract: Azo dyes for animal fibres are made by coupling diazo compounds of amines of the formula <FORM:0472171/IV/1> (wherein X and Y = H or CH3 and the benzene nucleus may contain further substituents) with any coupling component such that the dyestuffs formed contain at least one solubilizing group. In examples, dyes from the following components are described: diazo components: 1 - (N - acetyl or benzoyl - isopropylamino) - 4-aminobenzene, 1-(N-acetyl-isopropylamino)-3-aminobenzene, 1-(N-methoxyacetyl-isopropylamino)-4-aminobenzene, 1-(N-acetyl-isopropylamino)-4-aminobenzene-2-sulphonic acid, 1-(N - acetyl- or benzoyl - sec. - butylamino) - 4-aminobenzene, 1 - (N - p - toluenesulpho - isopropylamino) - 4 - aminobenzene, 1 - (N - benzenesulpho-sec.-butylamino)-4-aminobenzene; coupling components: 2-naphthol-6 : 8-disulphonic acid, 1-naphthol-3- or 4-sulphonic acid, 2-naphthol-6-sulphonic acid, 1-naphthol-3 : 6- or 3 : 8-disulphonic acid, N-acetyl H or K acid, g -acid, 1-(2<1>-chloro-5<1>-sulphophenyl)-3-methyl-5-pyrazolone, N-benzoyl M acid, N-benzoyl or acetyl J acid, N-acetyl g -acid. Other acyl derivatives such as the methoxyacetyl, chloracetyl, carbethoxyacetyl, benzoyl, hexahydrobenzoyl and phenoxyacetyl derivatives of 2 : 8 : 6-, 1 : 8 : 6, 1 : 5 : 7- and 2 : 5 : 7-acids may also be used.  The diazo components are made by condensing 1-chlor-4-nitrobenzene or its 2-sulphonic acid with the corresponding amine, if necessary splitting off the sulpho group, acetylating and reducing or by acetylating, nitrating and reducing the corresponding alkylamine.  Specifications 238,737, 275,258, 313,110, [all in Class 2 (iii)], 340,640, 341,461, 420,775, 424,354, 438,129, and 450,564 are referred to.
Patent GB-112099-A (GB)
Title: Improvements in or relating to Machinery for the Manufacture of Wired Glass.
IPC: C03B13/12
Filed: 1917-06-07
Abstract: 112,099. Chance Bros. & Co., and Beetlestone, E. June 7, 1917. Wire skeletons, embedding in glass.-Rollers for embedding wire in glass are made with a series of projections b in place of the continuous annular ribs usually employed. In the arrangement shown, the projections are disposed in staggered relation, are longer than the interspaces, and are arranged at right-angles to the axis. The projections may be arranged obliquely or transversely.
Patent GB-864542-A (GB)
Title: Process for the manufacture of modified cyclohexanone resins
Inventor: JENKINS VICTOR FREDERICK
IPC: C08L63/00
Filed: 1957-03-12
Abstract: A cyclohexanone-methanol resin, an alkyl cyclohexanone-methanol resin, a cyclohexanoneformaldehyde resin or an alkyl cyclohexanoneformaldehyde resin each containing hydroxyl groups, is reacted with an epoxy compound.  The alkyl cyclohexanone resins are advantageously prepared from methyl cyclohexanones e.g. an isomeric mixture of ortho-, meta- and paramethyl cyclohexanone. Epoxy compounds specified are epichlorohydrin, ethyleneoxide, propylene oxide and epoxy resins.  It is also possible to use alkylene oxides formed during the reaction e.g. ethylene oxide from ethylene carbonate.  The modification is carried out in the presence of catalysts e.g. sodium methoxide, boron trifluoride. The reaction with ethylene carbonate is carried out in the presence of a strong alkali catalyst such as sodium hydroxide or potassium carbonate.  Examples are given of the preparation of a methyl cyclohexanone-methanol resin followed by modification with ethylene carbonate and ethylene oxide and of the preparation of a cyclohexane-one methanol resin which is modified with ethylene carbonate.  The products are useful in surface coating materials such as lacquers or paints.  Specification 864,541 is referred to.
Patent GB-547812-A (GB)
Title: Improvements in or relating to shuttle guards for looms for weaving
IPC: D03D49/58
Filed: 1941-06-30
Abstract: 547,812. Shuttle guards. RICHMOND, H. June 30, 1941. No. 8181. [Class 142 (iii)] A shuttle guard adjustable by hand from operative position to inoperative position when the loom is stopped and which is returned automatically to operative position when the loom is restarted comprises arms 4 pivoted upon the sley cap, and guard rails 5 or flexible metal mesh mounted upon the arms. In the operative. position, the arms are as shown in full lines, in a downwardly directed position; and their mounting permits them to be swung towards one side of the loom into inoperative position. A catch surface 12 may be arranged to engage one of the guard rails to hold the guard in inoperative position, and a spring may be provided to pull the guard into operative position.
Patent GB-570072-A (GB)
Title: Catalysts for reforming
IPC: B01J21/16
Filed: 1941-06-30
Abstract: 570,072. Catalysts. TRIGGS, W. W. (International Catalytic Oil Processes Corporation). June 30, 1941, No. 8216. [A Specification was laid open to inspection under Sec. 91 of the Acts, Dec. 30, 1941] [Class 1 (i)] A catalyst for reforming hydrocarbons comprises a crystalline aluminium hydrate and a minor proportion of an oxide of a metal of Group VI, particularly molybdenum, and is activated by heating to about 1200‹F.
Patent GB-1218887-A (GB)
Title: Improvements relating to the ventilation of motor vehicles
IPC: B60H1/24
Filed: 1969-02-14
Abstract: 1,218,887. Vehicle bodies. DAIMLERBENZ A.G. 14 Feb., 1969 [16 Feb., 1968], No. 8241/69. Addition to 1,082,530. Heading B7B. The rear pillar of a vehicle forming an air conduit for air entering the interior inlets 8 adjacent the rear window 7 and being discharged via the apertures is provided over part of its height by a vertical partition 9 which is turned outwardly at 9a to terminate at the level of the lowest aperture to drain any water which might enter via the apertures.
Patent GB-123463-A (GB)
Title: Improved Mixer for Hot and Cold Water.
Inventor: SHANKS JOHN
IPC: F24D17/00
Filed: 1918-05-17
Abstract: 123,463. Shanks, J. May 17, 1918 Freely-flowing material mixed in conduits.-A mixer for hot and cold water comprises a box 1 fitted with loose superposed baffle-plates 5, 6, imperforate plates 5 having notched edges alternating with plates 6 having central openings. The inlets 2, 3 for hot and cold water are spaced apart laterally at one end of the box, and the outlet 4 is situated at the other end. Feet or projections may be provided on the plates 5, 6 for spacing them apart, and the plates 5 may be dished or formed at or near the centre with conical projections directed towards the central openings in the plates 6 to spread the waten passing through the openings.