baber/WOPTO huggingface dataset:
Patent GB-1208890-A (GB)
Title: Process for polymerizing 1,3-butadiene
IPC: C08F136/06
Filed: 1967-11-08
Abstract: 1,208,890. Polymerizing impure butadiene. FIRESTONE TIRE & RUBBER CO. 8 Nov., 1967 [12 Dec., 1966], No. 50909/67. Heading C3P. Polybutadiene is made by polymerizing, e.g. in solution, a stream of butadiene-1,3, in the presence of a lithium metal, or an organometallic lthium compound, e.g. butyl lithium, at a peak temperature above 315‹ F., said stream of butadiene containing more than 400 parts per million by weight of 1,2-butadiene or alpha-acetylenes, or hydrocarbon carbonyls or propadiene, and having the modifying effect equivalent to more than 400 parts per million, by weight, of 1,2-butadiene. The polymerization may be effected batchwise or continuously. Details of Mooney viscosities, molecular weight distributions, Shore Hardness, and microstructures are given. The polymer may be sulphur vulcanized. The polybutadiene may be blended with natural or synthetic rubbers, plasticizers, polypropylene, and carbon black. The polybutadiene can be dissolved in styrene and the latter polymerized to give high impact polystyrene. A flow diagram is given of a continuous process.
Patent GB-1364786-A (GB)
Title: Impact crusher
IPC: B02C13/286
Filed: 1972-11-08
Abstract: 1364786 Hammer mills V E H ACTON 8 Nov 1972 [9 Nov 1971] 51443/72 Heading B2A An impact pulverizer comprises a hammer rotor 7 rotatable in a bowl 4. The bowl includes a liner 5 adjustable up or down to compensate for wear and spaced radially outwardly of the beater. The bowl is supported by screw-threaded bolts 9, and nuts 11 secured to flanges 12 carried by the bowl. The bolts 9 are rotated by a sprocket-and-chain assembly 13, 14. One bolt may extend through a cover 2 for rotation by a tool or further sprocket- and chain assembly 15. The hammer rotor 7 comprises spaced discs 16 between which are pivotal hammers 17. Feed is delivered to the mill by a rotatable throwing device 8. The cover 2 may be lifted by an hydraulic jack 18.
Patent GB-1463147-A (GB)
Title: Method of manufacturing a salt of an a-sulphofatty acid ester
IPC: C07C303/32
Filed: 1974-11-27
Abstract: 1463147 α-Sulphofatty acid ester salts as detergents LION FAT & OIL CO Ltd 27 Nov 1974 [29 Nov 1973] 51478/74 Heading C5D [Also in Division C2] Detergent compositions comprise a salt of an α-sulphofatty acid ester which has been prepared by: (1) sulphonating the fatty acid ester by contacting a mixture of 1 to 15% by volume of sulphur trioxide in an inert gas with a film of a fatty acid ester, said ester having the general formula RCH 2 COOR<SP>1</SP> (where R is an alkyl group having 8 to 18 carbon atoms and R<SP>1</SP> is an alkyl group having 1 to 5 carbon atoms), where the molar ratio of sulphur trioxide to fatty acid ester is from 1À0 to 1À5, the temperature is from 50‹ to 85‹ C. and the time of contact is fom 0À5 to 30 seconds; (2) contacting the sulphonation product of step (1) in film form with the said gaseous mixture for a period of from 3 to 120 seconds at a temperature from 95‹ to 150‹ C.; and (3) instantly neutralizing the heated sulphonation product of step (2) by simultaneous addition of both the sulphonation product and a base selected from aqueous alkali metal hydroxides, aqueous ammonia and ethylamine while the pH is maintained from 6 to 10 and the temperature is less than 70‹ C.
Patent GB-1197539-A (GB)
Title: A Process for Producing Chloroprene
IPC: C07C21/21
Filed: 1968-10-30
Abstract: 1,197,539. Chloroprene. SUMITOMO CHEMICAL CO. Ltd. 30 Oct., 1968 [14 Dec., 1967], No. 51531/68. Heading C2C. Chloroprene is produced by reacting 3,4-dichlorobutene-1 with an alkali-metal hydroxide in a reaction medium consisting of water and methanol or ethanol in a weight ratio of from 1: 1À0 to 1: 6À0 and at a temperature of from 10‹ C. to the boiling point of chloroprene, and adding to the reaction product a weight of water, which is at least 1.6 times the weight of methanol or ethanol employed, to separate chloroprene from the reaction product. The process may be conducted as a batch or continuous process.
Patent GB-1065929-A (GB)
Title: Improvements in grill or grid-shaped burners for gas-heated apparatus
IPC: F23D14/04
Filed: 1965-12-07
Abstract: 1,065,929. Gas burners. JUNKERS & CO. G.m.b.H. Dec. 7, 1965 [Dec. 12, 1964], No. 51736/65. Heading F4T. In a grid shaped burner comprising a series of parallel burners (11) mounted on a distribution pipe 10 each burner has a distribution chamber 15 supplying gas to jets 12 and two expansion chambers 18 supplying gas to outlet slots 21 flanking the jets 12, and two further outlets 25, 26 are provided in each side wall 19 of each burner to form a flame bridge for successively igniting adjacent burners of the grid. The outlets 25 are fed from the distribution chamber 15 and the other outlets 26 are fed from the expansion chambers 18. The outlets 25, 26 are arranged above the vertex line of the distribution pipe 10. The expansion chambers 18 are formed by cover strips 20 positioned against the side walls 19 to cover recesses therein. The jets 12 are disposed along a ridge 14 and form butterfly flames. At least one burner is ignited by a pilot burner (23). Each burner is formed from sheet metal by stamping, folding and connecting the edges together.
Patent GB-1124489-A (GB)
Title: Improvements in or relating to coal face support systems
IPC: E21D23/06
Filed: 1965-12-07
Abstract: 1,124,489. Advancing mine roof supports. BERGWERKSVERBAND G.m.b.H. Dec. 7, 1965 [Dec. 30, 1964], No.51898/65. Heading F1P. In a hydraulic mine roof support system comprising a plurality of advanceable roof support units arranged in groups, each support unit has means for feeling the working face and is arranged to generate a control signal when there is sufficient room ahead of the support to allow the support to advance, the signal only becoming effective to initiate the advancing sequence of the support unit when the unit has also received a time signal arranged to be fed in succession to all the support units of a group at predetermined intervals of time. Each support unit may comprise a sliding roof bar 1 guided between two fixed roof bars 2 and urged mechanically, pneumatically or hydraulically against the working face. When the sliding bar of a support is fully extended, electrical contacts 5a, 5b close to produce the control signal and when the support also receives the time signal from a transmitter an electrical circuit including the contacts 5a, 5b is completed to cause the support to advance. At the end of advance further contacts 6a, 6b are made to cause the support to re-set. Alternatively the cessation of the time signal after a predetermined duration may cause the support unit to re-set. The control signals may also be sent by a feeler switch on each support which is responsive to the distance from a conveyer situated between the supports and the working face. If any support fails to advance the full distance a feeler switch may cause (a) operation of an acoustic and/or warning system, (b) the stopping of the conveyer or of a cutting machine or (c) the further lowering of the roof bar of the support.
Patent GB-1441594-A (GB)
Title: Automatic sampling device
IPC: D06F39/00
Filed: 1972-11-10
Abstract: 1441594 Sampling liquids PROCTER & GAMBLE Ltd 9 Nov 1973 [10 Nov 1972] 52023/72 Heading B8N A device for automatically taking a sample of liquid from a drum 11 of a washing machine comprises a sampling container 1 having inlet and outlet openings 16, 27 and constructed to retain a sample introduced therein through a passageway 52 or 52a formed as a convolution, and valve means 7 and 8 for automatically isolating the sampling container upon fulfilment of a predetermined condition. As shown, the device is formed by three compartments 38, 39 and 40 and is releasably held on the wall of the drum 11 by a spring arrangement 10 and prongs 66, 70 which fit through drain holes 72, 73. The end compartments 38 and 40 are each fitted with a scroll 47 and an aperture 52, 52a suitable for scooping up liquid in any direction of rotation of the drum. The valves 7, 8 are connected together with an elastic band 9 which draws the valves into sealing engagement with the openings 16, 27 of the sampling container 1 when the valves are released by the melting of fuse metal rings 60. The device may only be provided with one convoluted passage when a drum rotates in only one direction. The convolutions may be formed by helical or spiral tubes. The valves may be responsive to centrifugal force, solution concentration or a timing device instead of to temperature.
Patent GB-1121070-A (GB)
Title: Collapsible cardboard or like box
Inventor: WEBSTER THOMAS
IPC: B65D5/36
Filed: 1964-12-23
Abstract: 1,121,070. Collapsible cartons. NEW MERTON BOARD MILLS Ltd. 20 Dec., 1965 [23 Dec., 1964], No. 52314/64. Heading B8P. A collapsible cardboard or like box has four walls, two opposite walls of which each have a a medial fold line so that when the box is collapsed part of each said wall lies in a plane with an adjacent wall and the other part of each said wall lies in a plane with another adjacent wall, both of said adjacent walls being extended to form bottom closure panels which interlock as by a tongue and slot and are folded inside the wall panels when the box is in the collapsed position.
Patent GB-1367745-A (GB)
Title: Underwater wells
IPC: E21B33/047
Filed: 1972-11-14
Abstract: 1367745 Wells &c F M C CORP 14 Nov 1972 [14 Dec 1971] 52481/72 Heading ElF An underwater well having a casing 22 is completed by connecting a riser 30 to the casing, feeding a tubing string 36 through the riser and supporting the string in the well adjacent the riser, feeding a tubing extension 48 with a flow control valve 50 into the riser and releasably connecting the extension to the string 36 so that the valve can be withdrawn from the well without disturbing the string. The casing has a hanger 26 supported by a further hanger 27 and a fitting 28 connects the hanger 26 to the riser which is provided with blow-out preventers 34 at the surface. The spring 36 and a tubing hanger 38 are positioned in the well by a removable running spring 40. A tubing string 42 is run into the well and supported by the hanger 38 by means of a removable running string 44. Extensions 48, 54 with valves 50, 56 are fed into the riser and connected to the hanger 38. Back pressed valves are run into the tubing hanger before removing valves 50, 56 with the extensions. The valves 50, 56 are kept open by maintaining pressure in the annulus 90 or in hydraulic control lines.
Patent GB-1069854-A (GB)
Title: Improvements in or relating to food processing factories
IPC: E04H5/02
Filed: 1964-12-28
Abstract: 1,069,854. Food processing factories. SWIFT & CO. Dec. 28, 1964 [Dec. 30, 1963], No. 52563/64. Heading E1A. A food processing factory comprises a sealed, pressurized circular chamber 10 which is subdivided by a floor 44 and consists of metal walls 41, 43 with an intermediate layer of thermal insulation 42 therebetween. The chamber is supported by legs 45 and rollers 49 on a steel track 48 to accommodate thermal stresses resulting in longitudinal displacement. Air locks 73 for the entry of personnel and goods are provided as necessary together with means for regulating the pressure and humidity of the air. For details of food processing plant, handling plant drainage plant &c incorporated in and about the chamber 10 the Specification should be referred to in conjunction with Specifications 1,069,854 and U.S.A. Specification 3,108,318.
Patent GB-1097219-A (GB)
Title: Process for treating organic diisocyanates
IPC: C07C263/20
Filed: 1965-12-13
Abstract: In the manufacture of fibre-forming elastomeric polyurethanes by processes involving the addition of a solution of an organic diisocyanate to a polymeric diol, the diisocyanate solution is pretreated with phosphoric acid in a proportion of about 0.001-1%, based on the diisocyanate.  The pretreatment nullifies the tendency for gel-formation to occur during the manufacture of the polyurethane.  An example is given in which a pretreated solution of p,p1 - diphenylmethane diisocyanate in dimethyl formamide is reacted with a solution of a mixture of 80/20 mol. per cent polyethylene/propylene adipate of molecular weight 1800 in the presence of dibutyl tin dilaurate, whereafter the prepolymer solution so obtained is extended with 1,4 - bis - (methylamino) benzene.  A number of other diisocyanates which may be pretreated are specified.ALSO:Solutions of organic diisocyanates are treated with phosphoric acid in a proportion of about 0.001-1%, based on the diisocyanate.  The treatment nullifies the tendency for gel-formation to occur when the solutions are used in the manufacture of polyurethanes (see Division C3). An example is given of the treatment of p,p1-diphenylonethane diisocyanate in dimethylformamide solution. A number of other diisocyanates which may be treated are also specified.
Patent GB-1334150-A (GB)
Title: Process for the preparation of foamable styrene polymers
IPC: C08F283/12
Filed: 1971-11-15
Abstract: 1334150 Preparation of foamable styrene polymer beads by suspension polymerization FARBWERKE HOECHST AG 15 Nov 1971 [16 Nov 1970] 52950/71 Headings C3P and C3C In a process for the production of foamable styrene polymer beads by suspension polymerizing styrene with or without up to 10% by weight of an alkyl styrene or nuclear halogenated styrene or up to 10% by weight of an acrylic or methacrylic acid ester, acrylonitrile, vinyl chloride, a vinyl ester or a vinyl polysiloxane, in the presence of a blowing agent, the protective colloid for the suspension is 0À02-0À08% by wt. based on the total monomer, of a copolymer of 98-99À5% by wt. of an N-vinyl-N- alkyl acetamide in which the alkyl is C 1-4 , and from 2-0À5% by wt. of a C 6-18  aliphaticalcohol ester of acrylic, methacrylic, maleic, or fumaric acid, said copolymer having a Fickentscher K value of 70-120, measured as a 1% methanol solution at 20‹ C. The preferred protective colloid is a copolymer of N-vinyl-N- methyl acetamide and 2-ethylhexyl acrylate. Other suitable comonomers for the N-vinyl-N- alkylacetamide are n-hexyl acrylate, decyl methacrylate, dodecyl maleate and stearyl fumarate. Blowing agents specified are npentane, isopentane, cyclopentane, hexane, petroleum ether, and halogenated hydrocarbons such as CFCl 3 , CF 2 Cl 2 , CH 3 Cl, and CH 2 Cl 2 . Nucleating agents for pore regulation may also be present, such as hexabromocyclododecane, tetrabromobutane, tris(dibromopropylphosphate), brominated butadiene oligomers and chlorine compounds such as chloro-paraffins and P.V.C., and polysiloxanes. The initiators used are conventional. Other additives such as flame retarders, plasticizers &c. may also be present. The blowing agent may be added before or during polymerization.
Patent GB-1360819-A (GB)
Title: Manufacture of acrylic acid
IPC: C07C51/25
Filed: 1971-11-17
Abstract: 1360819 Acrylic acid BADISCHE ANILIN- & SODA-FABRIK AG 17 Nov 1971 [18 Nov 1970] 53342/71 Heading C2C Acrylic acid is manufactured by the two-stage oxidation of propylene with molecular oxygen in admixture with inert, diluting gas in reaction tubes packed with catalyst, the propylene being oxidized to acrolein in the first stage with further oxidation to acrylic acid occurring in the second stage. The initial propylene concentration is above 2% molar based on the initial gaseous mixture and the rate of flow of the propylene (or acrolein) supplied to each stage is greater than 60 litres per hour per litre of catalyst in that stage. The activity of the catalysts in each of the two stages is varied by dilution with inert materials so that the activity at the inlet end of each of the reaction tubes is less than 100% and increases to 100% at or before each outlet end. The off-gases obtained at the outlet of the second stage is freed from condensible gases and recycled to the first stage optionally together with steam as inert diluting gas. The first stage catalyst contains molybdenum, tungsten and tellurium in addition to oxygen and the second stage catalyst contains molybdenum, tungsten and one or more of iron, nickel, manganese, and copper, in addition to oxygen, and optionally vanadium.
Patent GB-1294334-A (GB)
Title: Method of forming a flexible tube
Inventor: WRIGHT GORDON THOMAS
IPC: B29C61/02
Filed: 1969-11-04
Abstract: 1294334 Flexible hose AES (PLASTICS) Ltd 19 April 1971 [4 Nov 1969] 53955/69 Heading F2P A flexible hose comprising a flexible thermoplastic tubular sleeve having an internal coaxial reinforcing helical spring is produced by surrounding the spring with an expanded sleeve maintained without external radial deforming force and heating the sleeve to contact it into secure engagement with the spring. The sleeve is extruded and inflated by compressed air, the ends of the sleeve being sealed, the walls of the sleeve engaging the internal surface of a jacket which cools the sleeve, to "freeze" it so that the sleeve is held in the expanded state. The sleeve is then applied over the spring which is held axially extended on a mandrel and heated to contract on to the spring. The spring is released on the mandrel and the sleeve is further heated to complete the contraction. The sleeve which may be heated before or during inflation is of P.V.C., and the spring is of steel or plastics.
Patent GB-1202873-A (GB)
Title: Improvements in and relating to a method of assembling a marine propulsion propeller in a surrounding duct
Inventor: ENGLISH JOHN WALTER
IPC: B63H5/14
Filed: 1966-12-02
Abstract: 1,202,873. Propelling and steering ships. NATIONAL RESEARCH DEVELOPMENT CORP. 1 Dec., 1967 [2 Dec., 1966],No. 54157/66. Heading B7V. A marine propeller 5 is surrounded by a duct 2 which is mounted when only partly completed and is thereafter completed by modifying the inner wall thereof to provide the correct clearance between the tips of the propeller and the inner wall. As shown, the duct is provided with a dovetail recess 8 extending around its inner wall, the recess being filled with material of the required thickness in strip or tiled form. Examples of filler material recommended are lignum vitae, nylon, reinforced plastics or a rubber based compound. In an alternative arrangement the complete duct is made of one of, all but the first filler materials recommended, and completion of the duct is effected by rotating the propeller so that the tips remove the unwanted portions of the inner wall. The duct is pivotable on bearings 3 for steering.
Patent GB-1450678-A (GB)
Title: Methods of and apparatus for the manufacture of standard cables
IPC: H01B13/02
Filed: 1972-11-24
Abstract: 1450678 Making stranded cables SCIENCE RESEARCH COUNCIL 5 Dec 1973 [24 Nov 1972] 54480/72 Heading D1T A method of manufacturing stranded cables comprises drawing the strands through a first die means 5, Fig. 2, comprising a male former 33 extending through and beyond a female die member 34 and having a cross-section which varies from circular to a first non-circular cross-section at its extremity so that the gathered strands have said first non-circular cross-sectional shape as they are drawn off the male former, and then through a compacting die means 6 adjacent said extremity whereby the strands are compacted to form the cable, for example the cable 2 of Fig. 3. The compacting means 6 may be a plurality of rollers 35a, 35b, 35c, 35d and these rollers may be moved laterally so that the throat of the compacting means 6 can be adusted in cross-section. The female die member is stationary but the male former 33 may be rotatable, Fig. 6 (not shown). Fig. 1 illustrates the use of a conventional tubular strander in association with the die means 5 and 6 of the present invention. In Fig. 1 a lay plate 26 rotates with the tubular strander 11 and the bobbins 8 are mounted in floating cradles. The die 5 is mounted on a shaft 32 that is held against rotation by a weight 19, the shaft 32 being rotatably mounted in an end plate 14a of the strander. Fig. 5 (not shown) illustrates a conventional planetary stranding apparatus feeding strands to the die means 5 and 6. One application of the cable is in the construction of superconducting magnets.
Patent GB-1487999-A (GB)
Title: Hinge assemblies
IPC: E05F1/12
Filed: 1974-10-17
Abstract: 1487999 Resilient hinges C E & J P BRITTON Ltd 17 Oct 1974 [27 Nov 1973] 54960/73 Heading E2F In a resilient plastics hinge assembly, first and second hingedly-mounted fittings 1 and 2 are anchored to a door 18 and the side wall of a cupboard 19 respectively and are movable angularly when the hinge connection between an inoperative (closed) position and any one of a series of operative positions against the loading of a resilient means in the form of at least one resilient tongue 10 which is integral with the first fitting 1 and engages with a bearing surface 16 on the second fitting 2 to deflect the tongue transversely and increase the loading as the fittings are moved relatively away from the inoperative position. Each of the fittings 1, 2 are provided with a plurality of spaced, interengaging arms 6, 12 respectively, the extremities of which are joined to an integral pin portion (not shown) extending transversely of the arms, the extremities of the arms of the other fitting are of open-eye form which snap into engagement over the pin portion to provide the hinge connection of the fittings.