baber/WOPTO huggingface dataset:
Patent GB-1414215-A (GB)
Title: Recovery of meta-xylene by selective crystallization
IPC: C07C67/00
Filed: 1973-08-10
Abstract: 1414215 Selective crystallization of metaxylene STANDARD OIL CO 10 Aug 1973 [11 Aug 1972] 38032/73 Heading C5E Mixtures of C 8  aromatic isomers are selectively and preferentially enriched in metaxylene by controlling the relative rates of crystallization so that p-xylene crystallizes at a low rate relative to that of m-xylene by a process comprising cooling a C 8  mixture in which (a) m-xylene and p-xylene are present in substantially their eutectic ratio; (b) o-xylene is present at a level below the eutectic ratio of o-xylene and m-xylene; and (c) the concentration of p-xylene is 10 mol. per cent or less, under non- equilibrium conditions at -65 to -90 C. for 5-150 minutes to provide a slurry of crystals enriched in m-xylene relative to the ratio of m-xylene and p-xylene obtained in crystallization to thermodynamic equilibrium and then removing the slurry of enriched crystals from the mother liquor. An internal refrigerant such as CO 2 , ethane or ethylene may be added to the C 8  mixture and may also serve as diluent to reduce the p-xylene concentration to the desired level. The mother liquor may be fractionated to remove the refrigerant passed to an isomeration step and recycled to the feed. Metaxylene seed crystals may be added in amount 0À1-2 wt. per cent to the mixture of C 8  isomers during cooling. The slurry of enriched crystals obtained may be further enriched in m-xylene by partial melting or recrystallization.
Patent GB-1518826-A (GB)
Title: Process for producing high-crystalline petroleum coke
IPC: C01B31/00
Filed: 1975-09-16
Abstract: 1518826 Petroleum coke MARUZEN PETROCHEMICAL CO Ltd 16 Sept 1975 [25 Sept 1974] 38065/75 Heading C5E A process for the production of coke from a petroleum feedstock such as crude oil or a residuum comprises the steps of preheating the feedstock 1 in a tube heater 2 to a temperature of 430-520‹C at a pressure of 4-20 Kg/cm<SP>2</SP>G for 30-500 secs; passing the preheated feedstock to a flashing column 3 where it is distilled at 380-480‹C, 0-2 Kg/cm<SP>2</SP>G to give a pitch which is removed from the bottom of the column at 6 and a distillate which is passed to a fractionating column 8; fractionating the distillate to give gas 21, gasoline 20, gas oil 17 and a heavy residue 10; and coking the residue 10 in drums 12, 13 by delayed coking at 430-460‹C, 4-20 Kg/cm<SP>2</SP>G for at least 20 hours. The coke thus obtained has a high degree of crystallinity and a graphite artefact thereof has a CTE (measured in the direction parallel to the extrusion) of less than 1.0 x 10<SP>-6</SP>/‹C over 100‹-400‹C. The pitch obtained from the flashing column may be coked by delayed coking at 410-430‹C, 2-10 Kg/cm<SP>2</SP>G to give a premium grade coke of low crystallinity. To improve the quality of the crystalline coke produced, alkali or alkaline earth metal salts may be added to the feed stock, sodium hydroxide and sodium carbonate being exemplified.
Patent GB-992518-A (GB)
Title: Bleaching cellulosic textiles
IPC: D06L3/08
Filed: 1962-10-09
Abstract: Cellulosic textiles are bleached by forcing a bleach liquor comprising an aqueous solution of chlorine dioxide to flow cyclically from a closed supply of the bleach liquor through a plurality of layers of the textiles and back to the closed supply of the bleach liquor comprising rtionately introducing into the circulating bleach liquor a concentrated aqueous solution containing about 250-10,000 parts per million of chlorine dioxide to maintain 5-200 parts per million of chlorine dioxide in the bleach liquor circulated to the textile.  The textile may be wound on a tubular, perforated beam and the aqueous chlorine dioxide solution pumped into the beam, through the perforations in the beam and through the textile.  Alternatively the beam upon which the textile is wound maybe immersed in the chlorine dioxide solution and solution forced to flow into and through the textile and into the beam through the perforations by applying a reduced pressure to the beam.  During the pumping operation the direction of flow of the bleaching liquor through the textile may be reversed at intervals to promote uniform bleaching. Machines are preferably used in which the ratio of bleach liquor to textile is from about 5 : 1 to 10 : 1 by weight.  Percolator type closed kiers in which the bleach liquor is forced to flow upwardly through folded layers of cloth and the solution withdrawn at the top is returned to the bottom of the kier after the introduction of additional chlorine dioxide solution may be used.  The bleach liquor may also contain wetting agents, e.g. salts of acylalkyltaurides, and polyoxyethylated nonyl phenol, and buffers, e.g. borates, alkali metal phosphates and sodium acetate-acetic acid mixtures, to adjust the pH to 2-8.  The bleach liquor may be maintained at about 70 DEG -210 DEG F.  After bleaching is completed a small amount of wash water may be pumped through the textile.  Fibres, yarns or fabrics, comprising cotton, linen, jute, hemp or regenerated cellulose fibres alone or in admixture with synthetic polyester nylon or polyacrylonitrile fibres may be treated.
Patent GB-859891-A (GB)
Title: Fluorescent coating compositions
IPC: C09D5/22
Filed: 1957-12-09
Abstract: A fluorescent coating composition comprises a substantially colourless transparent varnish having incorporated therein minor proportions by weight of a compound which fluoresces red, a compound which fluoresces blue, and a compound which fluoresces yellow under U.V. light, the compounds being substantially colourless and transparent in dilute solutions by daylight and in such proportion to each other that the composition fluoresces white or blueish-white under U. V. light.  The yellow fluorescent compound can be 3, 7-bis (phenyl-carbamylamino) dibenzothiophene-5,5 dioxide.  The red fluorescent compound can be 2-(3-hydroxy-2-naphthyl) benzimidazole. The blue-fluorescent compound can be 4-methyl-7-di(lower alkyl such as methyl or ethyl) aminocoumarin.  Approximately equal parts by weight of the compounds can be used.  In an example one part by weight of the blue and red fluorescing compounds and one and two tenths parts by weight of the yellow fluorescing compound are used. The varnish comprises a resin and a solvent for the resin such as butylated melamine and a mixture of xylene and butanol, a maleic or fumaric acid-modified resin, and diethylene glycol, ethyl cellulose and xylene, long chain fatty acid-modified phthalic-glycerol alkyd resin and a hydrocarbon solvent, and a liquid drying oil-modified phthalic alkyd resin such as Aroplaz 1278.  The amount of each fluorescent compound is about 0,-1%, preferably 0,1%, by weight of the coating composition.
Patent GB-1214724-A (GB)
Title: Improvements in or relating to swash plate control assemblies
Inventor: JUPE ROBERT JOHN
IPC: F16H21/46
Filed: 1968-08-09
Abstract: 1,214,724. Linkwork. WESTLAND AIRCRAFT Ltd. 5 June, 1969 [9 Aug., 1968], No. 38197/68. Heading F2K. A mechanism for adjusting the velocity ratio between input and output levers or rods comprises relatively rotatable coaxial rings 11, 14, one of which is gimbal mounted on a support 16, each ring being connected to at least one of the input and output levers or rods, and control means for rotating one ring relative to the other to adjust said velocity ratio. As shown, the inner ring 14 is gimbal mounted on a fixed support 16 and the relative rotational positions of the rings are controlled via alink 13 universally pivoted to a lug on the outer ring 11. Input levers or rods act on lugs 19, 20 on the inner ring 14 and output levers or rods are connected to lugs 17, 18 on the outer ring 11. In Figs. 3, 4 (not shown) the outer ring is held against rotation by an elbow linkage (24) and the inner ring is gimbal mounted on a shaft (26) rotatable by an arm (25) for ratio adjustment. In other modifications, the outer ring may be gimbal mounted, or the inner or outer ring may be duplicated to increase the number of control connections available.
Patent GB-1205860-A (GB)
Title: Novel oil treatment
Inventor: HU SHIH-EN
IPC: B01D37/02
Filed: 1968-08-12
Abstract: 1,205,860. Purifying oil. ESSO RESEARCH & ENG. CO. 12 Aug., 1968 [5 Sept., 1967], No. 38421/68. Heading B1D. [Also in Division C5] A lubricating oil system for lubricating internal combustion engines with a mineral lubricating oil and involving the circulation of such oils comprises employing a solids-oil contacting chamber in the oil circulating system, wherein the chamber contains at least one relatively oil-insoluble solid inorganic reducing compound having a cation moiety and an anion moiety wherein at least the anion moiety provides a reducing action and possesses an E‹ oxidation-reduction potential (as defined) greater than -0.8 if measured in an aqueous acid solution and greater than 0 if measured in an aqueous alkaline solution. Suitable compounds include those of sulphur in which the sulphur has a valency of between -2 and +4 inclusive and those of phosphorus in which the phosphorus has a valency between -3 and +4 inclusive. Specific Examples include sulphides, sulphites, dithionites, sulphoxylates, thiosulphites, and thiosulphates; and phosphites, phosphides, hypophosphates, hypophosphites, and pyrophosphites. The most preferred compounds are calcium sulphite, calcium hypophosphite and ferric hypophosphite.
Patent GB-1344548-A (GB)
Title: Benzimidazole derivatives
IPC: C07D235/30
Filed: 1971-08-18
Abstract: 1344548 Benzimidazoles AGFA-GEVAERT AG 18 Aug 1971 [20 Aug 1970] 38668/71 Heading C2C [Also in Divisions C4 and G2] The invention comprises novel benzimidazoles of Formula I when R<SP>1</SP> and R<SP>2</SP> are the same or different and represent H, C 1 -C 3  alkyl, aralkyl, aryl, halogen, CF 3 , CN, SO 2 R, SOR or SO 2 NR 2  where R = alkyl or aryl; R<SP>3</SP> and R<SP>4</SP> are the same or different and represent H or optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aryl, or heterocyclic radicals; R<SP>5</SP> = H or optionally substituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl, or OH, SH, OR, SR or NR 2 , where R = alkyl. The compounds are prepared by (a) reacting an o-nitroaniline of formula wherein R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are as defined above and Hal = halogen with a mercaptan of formula R<SP>4</SP>-SH where R<SP>4</SP> is as defined above, or with a salt thereof, (b) reducing the nitro group in known manner and (c) cyclizing in known manner to form a mercapto or thioether substituted benzimidazole. 1 - Phenylamino - 2 - nitro - 4 - chloro - 5- phenylthiobenzene and 2 - nitro - 4 - chloro - 5- phenylthio-N-methyl aniline are prepared by reacting the corresponding 4,5-dichloro compound with thiophenol in the presence of sodium carbonate. 2 - Amino - 4 - chloro - 5 - phenylthio - N - methylaniline is prepared by the hydrogenation of the corresponding 2-nitrocompound using Raney nickel. 1 - (# - Dimethylaminopropylamino) - 2- nitro-4,5-dichlorobenzene is prepared by reaction of the corresponding 1,4,5-trichloro-2-nitrobenzene with 3-amino- #-dimethylaminopropane in the presence of sodium carbonate and is reacted with 2-hydroxyethylmercaptan in the presence of sodium carbonate to obtain 1-(#- dimethylaminopropylamino)- 2 - nitro - 4 - chloro- 5-(#-hydroxyethylthio)-benzene. 1 - Chloro - 3 - methylamino - 4 - nitrobenzene is prepared by reaction of 2,4-dichloronitrobenzene with methylamine and is further reacted with thiophenol to obtain 1-phenyl-3- methylamino-4-nitrobenzene. 1 - Nitro - 2 - methylamino - 4 - carboxymethylthio-5-chlorobenzene is prepared from 4,5-dichloro - 2 - methylamino - 1 - nitrobenzene by reaction with thioglycollic acid. 1 - Nitro - 2 - methylamino 4 - dodecylthio - 5- chlorobenzene is prepared by reaction of the corresponding 4,5-dichloro compound with dodecyl mercaptan.
Patent GB-920050-A (GB)
Title: Improvements in or relating to stop joints or terminals for high-tension fluid-filled single-core electric cables
IPC: H02G15/25
Filed: 1961-10-30
Abstract: 920,050. Cable joints and terminations. PIRELLI S.p.A. Oct. 30, 1961 [Feb. 4, 1961], No. 38704/61. Classes 36 and 38 (1). A stop-joint or terminal for high-tension fluid-filled single-core electric cables comprises a metal socket to which a cable conductor or, as in the joint shown, two cable conductors 3 is or are connected, surrounded by a metal ring 8 which is embedded in a sleeve 9 of synthetic resin having near one end an external flange 17 borne upon by two asymmetrical portions of a casing 13 whereby the casing joint is located away from the socket 1 in a zone of lower electrical stress. Specifications 778,578 and 871,436 are referred to.
Patent GB-1322352-A (GB)
Title: Machine for excavating an boring soil
IPC: E21B11/04
Filed: 1970-08-12
Abstract: 1322352 Grab buckets A GASAGRANDE 12 Aug 1970 [14 Aug 1969] 38861/70 Heading B8H [Also in Division El] An earth boring grab mounted on a telescopic support 40 comprises a body 84 having flaps 83, 83<SP>1</SP> with levers 93, 94 connected by links 91, 92 to a lever 86 which is moved by a cable 49 to close the flaps. The grab may have a circular or rectangular cross-section.
Patent GB-1080326-A (GB)
Title: Improvements in or relating to turbine installations
Inventor: RIZK WAHEEB
IPC: F02K1/82
Filed: 1964-09-24
Abstract: 1,080,326. Pipe expansion joints; supporting pipes. ENGLISH ELECTRIC CO. Ltd. Sept. 24, 1965 [Sept. 24, 1964], No. 38975/64. Headings F2G and F2P. [Also in Division F1] A gas turbine power plant comprises, Fig. 1 (not shown), two gas turbine gas generators 11 supplying driving gas through ducts (15) to a separate turbine (16) driving an alternator. Each duct (15) comprises a casing 22 mounted within a horizontally divided outer casing 21 by means of locating and support means 32, 34 respectively. The locating means comprises an annular part 32 welded to inner casing 22 so as to surround and engage a circular part (33), Fig. 3 (not shown), screwed to outer casing 21, thus locating casing 22 in the horizontal plane but with some freedom for movement vertically. Locating means identical with 32 may also be  provided below casing 22, vertically aligned with the upper means 32. Each of the three support means 34 comprises a trunnion 35 welded to casing 22 and engaging a housing 36 which is held against members 37 secured to casing 21 by means of a cap (38), Fig. 4 (not shown). The trunnions 35 are thus located against vertical movement whilst they can move horizontally in their housings 36 relative to fixed members 37. The casing 21 is connected at its upstream end to a flange 23 on the gas turbine generator 11 through an arrangement allowing relative axial expansion of the casing and the gas turbine engine. The arrangement comprises an exhaust cone 24 joined to the flange 23 and having an annular recess receiving a flange on the end of a sleeve 25, the other end of which slides within a thin section member 26 attached to the casing 21 through a member 27. The upstream end of the inner casing 22 is supported within casing 21 by a frusto-conical member 28 welded to casing 22 and resting on facings formed on casing 21. Heat insulating wool is secured to the inner surface of easing 21.
Patent GB-1430393-A (GB)
Title: Laminated articles
IPC: B29C48/08
Filed: 1973-08-17
Abstract: 1430393 Coated paperboard E I DU PONT DE NEMOURS & CO 17 Aug 1973 [18 Aug 1972] 38994/73 Heading B2E [Also in Division B5N] A laminated article comprises a layer of paper board having a pH of 7.0-7.5 so as to be non-browning at use temperatures up to 204C having a polyester coating bonded on at least one side, the side or sides to which the polyester coating is bonded being free from clay. The articles may be produced by heating the paper board to at least about 285F, preferably by flame treating, applying e.g. by extruding a layer of polyester e.g. polyethylene terephthalate onto an uncoated surface or surfaces of the heated paper board, and cooling, and solidifying to bond the polyester to the paper board before, during or after shaping of the paper board. Preferably polyester is applied to the two surfaces of the paper board. The laminated article may be in the form of a container, with or without a liquid, useful in cooking or reheating food for human consumption. Forming the container, polyester surface or parts of it may be brought into abutting contact with other parts of the polyester surface or with parts of the paper board surface and heatsealed together or secured together by other means, or the container may be formed by folding a blank or by heating a blank and die pressing it into container form. As shown in Fig. 1 paper board 15 from supply roll 21 is moved past a heating means such as flame or hot gas 22 and into a nip formed by roller 23 and quench roller 24 where the paper board is combined with a layer of freshly extruded molten polyethylene terephthalate material 16 from the 2-ply laminate 17. The laminate 17 is then passed by a second heating means 22, around idler roller 26, a nip roller 27 and into a nip formed by nip roller 27 and quench roller 28. A second molten polyethylene terephthalate layer 16 is cast into the nip from extrusion die 29 and onto the uncoated second surface of the heated ,paper board 15.
Patent GB-856079-A (GB)
Title: Improvements in electrical connectors for electronic valves or the like having projecting terminal prongs
IPC: H01J19/66
Filed: 1958-12-03
Abstract: 856,079. Holder for thermionic valves. UNITED-CARR FASTENER CORPORATION. Dec. 3, 1958 [Dec. 5, 1957], No. 39061/58. Class 38 (1) A connector for engaging a valve pin comprises a pair of sheet metal contact elements 14, 16 having flat, abutting, base portions 30 with curved wings 24, 26 extending from the ends thereof so as to form a substantially cylindrical member, said base portions 30 having indentations 32 which together form a pin-receiving socket. The contact elements, together with an apertured base plate 18, are enclosed by a cup-shaped housing 12, a depending part 23 of the wall of which is turned over the plate 18 to retain the parts together. Plate 18 has an extension 36 for connection to a wire and the housing 12 may have an insulating covering (Fig. 9, not shown).
Patent GB-837095-A (GB)
Title: Improvements in or relating to the production of multilayer photographic materials
Inventor: WYNN NORMAN RATCLIFFE
IPC: B29C48/08
Filed: 1957-12-16
Abstract: 837,095. Coating webs. ILFORD Ltd. Nov. 24, 1958 [Dec. 16, 1957], No. 39100/57. Class 140. A process for coating a web 1, e.g. a photographic film base, with a plurality of layers 6, 7 comprises applying a coating liquid 17 from each of a plurality of stations spaced short distances apart, whereby the web 1 picks up liquid from each station in succession, the liquids after the first being applied to a liquid layer from the next preceding station, each liquid after the first being metered, e.g. by a gear pump, to the web 1 through a slot 13 extending across the web 1 and constituting at its station a bead of liquid 16 connecting the slot 13 and the web 1. Liquid is continuously supplied to and withdrawn from the bead 16. The web 1 preferably passes about a horizontal drum and the stations are preferably disposed about an upper rising quadrant of the drum. Each station comprises a head 8 having a jacket 9 through which a liquid at a controlled temperature is circulated to which is bolted a member 12 having the slot 13. The slot 13 may be 5 to 60 thousandths of an inch wide and spaced 5 to 60 thousandths of an inch from the web 1. The member 12 should be highly polished and all corners rounded. The lengths of slots 13 at successive stations is preferably increased to eliminate edge effects.
Patent GB-1102914-A (GB)
Title: Mounting of switchgear with protective housing
IPC: H02B1/04
Filed: 1965-09-14
Abstract: 1,102,914. Switch cases. STOTZ-KONTAKT G.m.b.H. 14 Sept., 1965 [3 Oct., 1964], No. 39229/65. Heading H1N. A switch 14 and a protective housing 7 therefor are mounted on a plate 1 having flanges 4 engaged by the switch. The housing is secured by screws 9 threaded into nuts 8 secured to plate 1. The screws 9 may be sealed by wires passing through holes therein and through holes 11 in lugs 10.
Patent GB-829211-A (GB)
Title: Improvements in or relating to the manufacture of salt
Inventor: OLIVER MICHAEL
IPC: C01D3/26
Filed: 1956-12-28
Abstract: The caking tendency of sodium chloride in non-dendritic cubic form is reduced by mixing solid crystalline sodium chloride with a soluble nitroprusside or carbonylferrocyanide in an amount not exceeding 0.05% by weight and generally in a range between 0.00002 and 0.01%. The initial salt crystals may be produced in known manner, separated from the mother liquor by centrifuging or filtering or gravity draining.  The resulting crystals containing less than 12% water, may be sprayed with an aqueous solution of, for example, sodium nitroprusside or carbonylferrocyanide. Examples refer to spraying salt obtained from vacuum evaporation of brine with an aqueous solution of sodium nitroprusside and to suspending salt in saturated brine and adding sodium nitroprusside to the suspension. Specifications 667,101 and 752,582 are referred to.
Patent GB-1159941-A (GB)
Title: A Shutter for Photographic Cameras
IPC: G03B9/10
Filed: 1966-09-05
Abstract: 1,159,941. Camera shutters. RICOH K.K. Sept. 5, 1966 [Sept. 16, 1965], No.39540/66. Heading G2A. A shutter consists of a single blade 5, a pin 6a at its upper end moving in a slot 3a in a member 3, and a pin 6b at its lower end moving in a slot 3b in member 3. Member 3 is rotatably supported on the lens barrel 2, which also carries a base plate 1. End 6a is loaded by a spring 7 attached to an abutment 1a on the base plate, and end 6b loaded in the opposite direction by a spring 8 attached to an abutment 1b. Fig. 1 shows the cocked position, both springs being tensioned, and pins 6a, 6b latched against movement by hooked portions on respective members 9, 10. When the shutter release is pressed, member 10 disengages from pin 6b, so that blade 5 is pivoted clockwise about pin 6a by spring 8. This uncovers the lens aperture to begin the exposure Fig. 3 (not shown). At the same time, pin 6b strikes a lever 18, actuating a timing mechanism (not shown) which connects it to another lever 14. After a predetermined time set by the mechanism, lever 14 trips latch member 9 to disengage from pin 6a, so that blade 5 is now pivoted clockwise about pin 6b by spring 7, so terminating the exposure Fig.4 (not shown). By rotating the member anti-clockwise, both springs are tensioned again to re-set the shutter Fig. 5 (not shown).