baber/WOPTO huggingface dataset:
Patent GB-888390-A (GB)
Title: Improvements in the stabilisation of acid stripping baths
Inventor: JANSON ALFONS
IPC: D06P5/13
Filed: 1958-12-05
Abstract: Acid stripping baths (used to decolour dyed textile materials) which contain as reducing agents hydroxy alkane sulphinic acids, especially those containing 1-4 carbon atoms, or their salts, or their reaction products with ammonia or ethylene diamine and salts of these products, are stabilized by incorporating in the stripping bath, or in a concentrated solution or solid reducing agent for use in preparing the bath, up to 10% by weight, with reference to the reducing agent, of a saturated aliphatic mono- or dialdehyde with up to 8 carbon atoms in the molecule or a compound which splits off such an aldehyde under the conditions of the stripping process, e.g. paraformaldehyde, formaldehyde-urea condensation products containing 1-3 methylol groups and formaldehyde-ammonia condensation products such as hexamethylene tetramine, or mixtures thereof.  Specified salts of hydroxy alkane sulphinic acids are those of sodium, potassium, calcium and zinc. Specification 646,809 is referred to.ALSO:Acid stripping baths (used to decolour dyed textile materials) which contain as reducing agents hydroxy alkane sulphinic acids, especially those containing 1-4 carbon atoms, or their salts or their reaction products with ammonia or ethylene diamine, and salts of these products, are stabilized by incorporating in the stripping bath, or in a concentrated solution or solid reducing agent for use in preparing the bath, up to 10% by weight, with reference to the reducing agent, of a saturated aliphatic mono- or di-aldehyde with up to 8 carbon atoms in the molecule or a compound which splits off such an aldehyde under the conditions of the stripping process, e.g. paraformaldehyde, formaldehyde-urea condensation products containing 1-3 methylol groups and formaldehyde-ammonia condensation products such as hexamethylene tetramine, or mixtures thereof.  The stripping baths may also contain dispersing agents for the stripped dyestuff, e.g. condensation products of high molecular weight aliphatic alcohols, amines or carboxylic acid amides with ethylene oxide or aliphatic-aromatic sulphonic acid salts such as sodium dibutyl naphthalene sulphonate.  Stripping may be carried out at a temperature of 45 DEG C.-100 DEG C. for 20 minutes to 2 hours using a bath containing 0.01%-3% by weight of the reducing agent adjusted to a pH of 3-6 with formic, lactic, acetic, phosphoric, hydrochloric or sulphuric acid.  Specified salts of hydroxy alkane sulphuric acids are those of sodium, potassium, calcium and zinc. Vat dyestuffs, e.g. anthraquinone and indigo dyestuffs, azo dyestuffs and metal complex azo dyestuffs may be stripped from wool, silk, polyamide, polyurethane, polyacrylonitrile, polyester or casein derivative fibres or fabrics.  Specification 646,809 is referred to.
Patent GB-1326946-A (GB)
Title: Blended hydrocarbon oil and process of manufacture
IPC: C10G45/02
Filed: 1970-08-14
Abstract: 1326946 Refining mineral oils; transformer oils SUN OIL CO 14 Aug 1970 [18 Aug 1969] 39235/70 Headings C5E and C5F An electrical insulating oil comprises a severely hydrorefined naphthenic oil (e.g. 98- 70 parts by weight) and an unhydrorefined naphthenic distillate (e.g. 2-30 parts). The blend suitably has a viscosity of 40-200 SUS at 100‹ F. and contains 20-30 wt. per cent aromatic hydrocarbons; it can contain a cycle oil, from the catalytic cracking of gas oil boiling in the range 600-1000‹ F. with azeolitic catalyst and comprising polynuclear aromatic hydrocarbons, and 2,6-di-tertiary butyl p-cresol as an oxidation inhibitor. Either the blend or the individual components thereof can be further refined will attapulgite. The hydrorefined naphthenic oil is obtained by hydrorefining a naphthenic distillate at above 500 with 800- 3000 psi partial pressure of hydrogen and a LHSV of 0.1-8 using a catalyst containing Mo, Co, Ni and/or W oxide on silica, alumina, alumina-titania, or aluminosilicate and which can be presulphided. The hydrorefined naphthenic oil can be further hydrorefined to convert tetracyclic and higher naphthenes and 1, 2 and 3 aromatic ring compounds to tetracyclic and higher aromatic compounds; this further refining is carried out at about 675‹ F. with a hydrogen pressure below 1600 psi using a catalyst similar to that used for the first hydrorefining or of Pt, Ru or Pd on alumina or of nickel on silica. The hydrorefined oil component of the blend can be a blend of 15-85 vol per cent of severely hydrorefined naphthenic distillate having a 335 UVA of less than 0.04 with 85-15 vol per cent of an oil which has been severely hydrorefined under conditions favouring aromatization, e.g. 725-800‹ F., and has a 335 UVA of 0.6 to 1.2.
Patent GB-1375084-A (GB)
IPC: F01C21/10
Filed: 1972-08-23
Abstract: 1375084 Rotary positive-displacement pumps ROBERT BOSCH GmbH 23 Aug 1972 [24 Aug 1971] 39268/72 Heading F1F [Also in Division H2]  In an electric motor fluid feed pump, the motor armature 19 and the pump impeller 10 are coaxially mounted on bushes 23, 15 for rotation about a fixed shaft 5 in a housing 1, and the fluid which passes through the housing lubricates the bearing surfaces of the bushes and also cools the armature. In operation, fluid is drawn through an inlet 3 and bore 13 into a chamber 7 formed by three plates 4, 6, 8, and leaves via further bores 14, 14' and an outlet 35. In the arrangement shown, the armature 19 and a commutator 24 are extrusion coated with plastics material in a single mould, and the stator magnets 25, the holders for the brushes 30 and the holders for anti-interference coils 41 are all mounted in a single plastics structure 27. A magnetic conductive tube 29 surrounds the magnets 25.
Patent GB-1034938-A (GB)
Title: 2-phenylamino-1,3-diazacyclopent-2-enes
IPC: A61K31/00
Filed: 1964-09-28
Abstract: The invention comprises compounds of the Formula I <FORM:1034938/C2/1> wherein Z represents a 3,5-dichlorophenyl, 3,4-dichlorophenyl, 2,6-dibromophenyl, 2-fluoro-4 - chlorophenyl, 2 - trifluoromethylphenyl, 2 - methyl - 4 - chlorophenyl, 2 - chloro - 4-methylphenyl, 2 - chloro - 4 - ethylphenyl, 2 - chloro - 6 - ethylphenyl, 2 - chloro - 4 - tert.-butylphenyl, 2,6 - dichloro - 4 - methylphenyl, 2,4 - dichloro - 6 - methylphenyl, 2,4 - dimethyl-6-chlorophenyl or 2,6-dimethyl-4-chlorophenyl group; non-toxic, acid-addition salts thereof; a process for their preparation comprising reacting an isothiouronium salt of the formula <FORM:1034938/C2/2> wherein R1 represents a C1- 6 alkyl group and X represents the anion of an acid, with ethylene diamine in the absence of a solvent; and processes for the preparation of compounds of the Formula I in which Z represents a 2,6-dichlorophenyl, 2 - chloro - 6 - methylphenyl or 2,4,6 - trimethylphenyl group, in addition to the groups specified above for Z, comprising (a) reacting an isothiouronium salt of the formula: <FORM:1034938/C2/3> wherein Z1 represents the groups specified above for Z and also a 2,6-dichlorophenyl, 2-chloro-6-methylphenyl or 2,4,6-trimethylphenyl group, with ethylene diamine in the presence of a solvent, or (b) reacting a thiourea derivative of the formula <FORM:1034938/C2/4> with ethylene diamine, or (c) pyrolysing a compound of the formula <FORM:1034938/C2/5> wherein Y represents an oxygen or sulphur atom, to effect ring closure.  Isothiouronium salts of Formula III are prepared by reacting an appropriately substituted aniline with ammonium thiocyanate to produce a thiourea derivative of Formula IV, which is reacted with an alkyl compound, e.g. an alkyl halide or dialkyl sulphate, in a suitable solvent.  Pharmaceutical compositions having hypotensive activity, for oral, parenteral or rectal administration, comprise a compound of the invention, or a compound of Formula I in which Z represents a 2,6-dichlorophenyl, 2-chloro - 6 - methylphenyl or 2,4,6 - trimethylphenyl group, together with a pharmaceutical carrier.
Patent GB-958844-A (GB)
Title: Method and apparatus for the vacuum casting of metals
Inventor: GERO JOHN BERNARD
IPC: B22D18/06
Filed: 1961-11-06
Abstract: A sealing compound for use in a vacuum casting apparatus (see Division B3) comprises a mixture of a low molecular weight glycidyl polyether, a condensation product of such a polyether with a glycol such as ethylene glycol, and a curing agent such as a mixture of a primary curing agent of pyromellitic dianhydride and a secondary curing agent comprising one or more organic acid anhydrides. Accelerators such as alphamethylbenzyl dimethyl amine, n-butyl amine, pyridine and N-methyl pyridine in catalytic amounts, 0.5-3% by weight of the resins may be added, together with fillers such as atomised aluminium, iron, copper, aluminium oxide, silica powder and asbestos.
Patent GB-1520404-A (GB)
Title: Liquid development of electrostatic charge patterns
IPC: G03G15/01
Filed: 1975-09-29
Abstract: 1520404 Multi-colour development XEROX CORP 29 Sept 1975 39731/75 Heading G2C An electrostatic charge pattern having areas of relatively higher and lower charge is developed in more than one colour by successive development with two (or more) liquid developers of different colour, e.g. black and red, the first and the (or each) subsequent developer having a development threshold allowing it to develop the areas of higher and lower charge respectively and the (or each) subsequent developer having a viscosity of not more than 20% of that of the next previously applied liquid developer. The desired development threshold of a liquid developer may be achieved by adjusting its viscosity or by electrical biasing.
Patent GB-971629-A (GB)
Title: Process for the manufacture of copolymers having an extremely heterogeneous structure
IPC: C08F20/62
Filed: 1960-11-18
Abstract: Copolymers are made from a total quantity of monomer comprising 30-95% by weight of vinyl chloride and 70-5% by weight an ester of acrylic acid with a C4-C12 alcohol by copolymerizing at least a major proportion of the ester with an amount of vinyl chloride such that the weight ratio of vinyl chloride to ester is below 9:1, in an aqueous phase, in the presence of a radical-forming activator until 5-20% by weight of the total quantity of monomer is polymerized, then adding the balance of the total quantity of monomer to the aqueous phase containing already polymerized monomer and continuing the polymerization until about 85% by weight of the total quantity of monomer is polymerized.  2-ethylhexyl acrylate is the preferred acrylic ester.  A third monomer, e.g. a vinyl or maleic ester may be present during polymerization. Initiators specified are hydrogen peroxide, benzoyl, acetyl and lauroyl peroxides, persulphates and azodiisobutyronitrile.  The example describes the copolymerization of vinyl chloride and 2-ethylhexyl acrylate in suspension in an aqueous medium containing a mixture of methyl cellulose and sodium di-tert. butyl naphthalene sulphonate and a mixture of lauroyl peroxide and azodiisobutyronitrile.  The resulting copolymer has a heterogeneous structure.
Patent GB-1204383-A (GB)
Title: A process for activating anti-foam liquids
Inventor: KLEIN KURT
IPC: B01D19/04
Filed: 1967-08-31
Abstract: 1,204,383. Antifoam liquids activated with treated silica. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. 31 Aug., 1967 [31 Aug., 1966], No. 39885/67. Heading C3T. Antifoam liquids are activated by incorporating therein a pyrogenic silica rendered hydrophobic by treatment with dimethyldichlorosilane. The silica described is " Aerosil " (Registered Trade Mark) R 972, having a surface of 120 Œ 30 m<SP>2</SP>/g., an average particle size about 20 mÁ and carbon content 1.1 Œ 0.2%. In examples it is added to various commercial silicone oils and other antifoam liquids, and the products are tested in detergent solutions.
Patent GB-1363476-A (GB)
Title: Joint structure
IPC: E04B2/30
Filed: 1971-08-25
Abstract: 1363476 Block walls; permanent formwork QUARIUS CORP 25 Aug 1971 [26 Aug 1970] 39887/71 Heading E1B [Also in Division F2] A wall is built up from concrete blocks 11 by sliding the blocks together with projections 14-21 interengaging and introducing locking members into grooves 30 in opposed faces of the projections. Two opposed skins of permanent formwork (Fig. 2) may be built up in this way and the ties 43 holding the two skins together also held by the locking members passing through apertures therein. Many minor modifications of the overlapping projections, their grooves and the locking members are described. The blocks instead of being moulded in one piece from concrete, may be formed from two slabs of concrete one of concrete and one of metal or wood bonded together. Insulation and pipework may be secured to one of the skins of the formwork before the concrete is cast.
Patent GB-1104450-A (GB)
Title: Improvements in or relating to telecommunication cables
Inventor: DODD GEORGE ALEXANDER
IPC: H01B7/285
Filed: 1965-09-20
Abstract: 1,104,450. Telecommunication cables. BRITISH INSULATED CALLENDER'S CABLES Ltd. 20 Sept., 1966 [20 Sept., 1965; 23 Dec., 1965], Nos. 39921/65 and 54641/65. Addition to 995,582. Heading H1A. In the cable of the parent Specification 995,582, which has a plurality of conductors, each with a cellular plastics dielectric, enclosed in a waterproof sheath and having the interstices between these insulated conductors filled from end to end with a water-impermeable medium, the permittivities of the dielectric and filler material are such that the conductor-to-conductor capacitance of any pair of conductors differs from that in the case of a similar cable without the water-impermeable filler and cellular dielectric material. The conductors may be made of aluminium.
Patent GB-1131345-A (GB)
Title: Improvements in or relating to data processing systems
Inventor: BURNHAM NEIL QUENTIN
IPC: G11C21/00
Filed: 1966-01-04
Abstract: 1,131,345. Delay-line stores. M.E.L. EQUIP. MENT CO. Ltd. 7 Sept., 1966 [4 Jan., 1966], No. 39994/66. Heading G4C. To allow surrounding logic circuits to operate at only half the speed of a delay line 9, e.g. an acoustic delay line, two separate circulation loops are connected to the delay line and alternate bits of the delay line output, which is in the form of " interleaved " pairs of words, i.e. successive bits of information belong to alternate words of the pair, are alternately gated to the two circulation loops 7 and 8. Flip-flops 11 and 12 included in the two loops are alternately fed from the delay line through pairs of AND-gates 13, 16 and 14, 17 enabled by clock pulses α and #, respectively, so that each flip-flop 11 or 12 records the successive bits of a different one of the two-word output of the delay line. The clock pulses are supplied by monostable circuits 3, 4 fed by a clock pulse source 1 via a binary divider 2, and the same clock pulses alternately enable AND-gates 5, 6 for re-entering words into the delay line in " interleaved " fashion. During a read operation controlled by flipflop 25, the contents of one of the flip-flops 11, 12 are read into a read/write register 18 which thus operates at only half the rate at which the complete output emerges from the delay line. The input arrangement from register 18 to one of the flip-flops 11, 12 is similar and is controlled by write flip-flop 24. By increasing the number of circulation loops (not shown), the arrangement may operate on any number of sets of " interleaved " words.
Patent GB-850027-A (GB)
Title: Improvements in or relating to electric batteries having separators between the electrodes
Inventor: SOREDAL SVEN GUNNAR
IPC: H01M50/429
Filed: 1957-12-27
Abstract: 850,027. Batteries. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. Dec. 27, 1957, No. 40222/57. Class 53 A battery, which may be of the zinc-silver type, is provided with separators consisting partially or wholly of condenser paper. Fig. 1 shows a method of wrapping an electrode 1 in a sheet 2 of regenerated cellulose. The sheet is first folded, and the electrode placed in the fold, the open ends of the sheet being closed by strips 4 of condenser paper which may be cemented in position. The sheet is then folded as shown in Fig. 2, the lower ends of the strips 4 being folded round the bend in the sheet 2. Fig. 4 shows a modification in which the strips 4 are replaced by a sheet 5 of condenser paper, three layers of regenerated cellulose and five layers of condenser paper being on each side of the electrode 1. A battery may comprise a silver electrode wrapped in regenerated cellulose as shown in Fig. 2, on each side of which is a zinc electrode similarly wrapped in condenser paper.
Patent GB-1464906-A (GB)
Title: Pipe support in or for an exhaust system
IPC: F16L3/10
Filed: 1974-09-16
Abstract: 1464906 Clips TENNECO INC 16 Sept 1974 [17 Sept 1973 27 Sept 1973] 40304/74 Addition to 1411553 Heading E2B The Specification discloses a mounting system of the type disclosed in Parent Specification 1411553. The post 43 on which the clip 25 of the mounting system is suspended is provided with a resilient layer in the form of a rubber sleeve or grommet 45. The jaws 57, 59 of the clip are part elliptical and in endwise elevation cross each other. The post 43 is mounted between two interengaging parts 27, 35 of the strap 23. The mounting system is used for supporting the exhaust system of a motor vehicle (Fig. 1, not shown).
Patent GB-1087949-A (GB)
Title: Preparation of thioformamide
Filed: 1965-09-22
Abstract: Thioformamide is prepared by treating hydrogen cyanide with hydrogen sulphide in the presence of a base, other than a primary or secondary amine, having a pKa value of 5 to 12.  Examples of suitable bases are ammonia, sodium carbonates, sodium acetate, tri(C1-C5 alkyl) amines, aryl-substituted amines, alkenyl-substituted amines and nitrogen-containing heterocyclic compounds.  The reaction is preferably carried out at pressures no greater than about 300 p.s.i. and between 0 DEG  and 150 DEG  C.  The reaction may be carried out in the presence of solvents, suitable ones being alcohols, glycols, ethers, aromatic hydrocarbons, aliphatic hydrocarbons, esters, halo-hydrocarbons, dimethylsulphone, dimethylformamide, dimethylsulphoxide and mixtures thereof.  In examples the bases used are ammonia, triethylamine, trimethylamine and triethylenediamine and the solvents used are isopropanol, methanol and benzene.
Patent GB-1280986-A (GB)
Title: Improvements relating to electric cable couplings
Inventor: STENT BETRAM HENRY GEORGE
IPC: H01R13/46
Filed: 1968-08-23
Abstract: 1280986 Two-part coupling NIPHAN Ltd 20 Aug 1969 [23 Aug 1968] 40537/68 Heading H2E  An electrical cable coupling member of the kind in which the contact pins or sockets are mounted in a block of insulating material (not shown) which is housed in a recess 3 in a flexible casing 1, the recess having a liner 4 which is less flexible than the casing, e.g. of resin bonded paper tubing and the block being secured in position by screws (not shown) which pass through the casing into the block, the recess 3 in the casing being formed with alip 5 at its outer end which defines a cavity in which the liner may be accommodated. The height of the lip may be equal to the thickness of the liner. The male end of a co-operating coupling member is received in the recess 2.
Patent GB-1439494-A (GB)
Title: Preparation of trimethyl hydroquinone
IPC: C07C67/00
Filed: 1973-08-29
Abstract: 1439494 Preparation of trimethylhydroquinone TEIJIN Ltd 29 Aug 1973 [18 Sept 1972] 40596/73 Heading C2C Trimethylhydroquinone is prepared by heating 4 - hydroxy - 2,4,6 - trimethyl - 2,5- cyclohexadiene-1-one at a temperature of at least 100 C. in a liquid medium which is methanol, water having a pH of at least 6 or a homogeneous mixture of water and a watermiscible organic liquid which mixture has a pH of at least 6.  The intermediate 4-hydroxy. 1,2,4-trimethyl- 2,5-cyclohexadiene- 1-one is obtained by reacting 2,4,6-trimethylphenol with a per-acid or with molecular oxygen in the presence of a basic reagent.
Patent GB-1057951-A (GB)
Title: Improvements in photographic colour processes
IPC: G03C7/30
Filed: 1963-10-16
Abstract: 1,057,951. Stabilizing dye images. EASTMAN KODAK CO. Oct. 16, 1963 [Oct. 18, 1962], No.40779/63. Heading G2C. Finished photographs containing dye images are stabilized by treatment with aqueous solutions of cysteine acid addition salts e.g. the hydrochloride or hydrobromide. The solution may contain buffering agents e. g. sodium citrate, acetate or tetraphosphate.
Patent GB-923797-A (GB)
Title: Improvements in or relating to pressure exchanger plant
Inventor: BARNES JOHN ANTONY
IPC: F04F13/00
Filed: 1960-11-29
Abstract: 923,797. Pressure exchangers. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Nov. 21, 1961 [Nov. 29, 1960], No. 41012/60. Class 8(1). In a pressure exchanger suitable for supplying relatively low pressure air to a powder fluidizing chamber 20 and comprising a plurality of open-ended cell rotors 2 disposed between ported end plates 4, 5, the high pressure scavenging stream issuing from port 9 into a duct 13 is divided into a first portion which traverses a duct 16 surrounding a combustion chamber 18 and leading to the high pressure inlet port 7, and into a second stream in a duct 17 which includes a Venturi 21 discharging into the chamber 22 a blockage downstream of the Venturi merely increases the gas flow through branch duct 16 whilst a sudden pressure drop in chamber 22 will choke the Venturi inlet and thus allow sufficient gas flow to be maintained in duct 16 to prevent an undue temperature rise at port 7.
Patent GB-1267888-A (GB)
Title: Method and apparatus for developing electrostatic latent images
IPC: G03G13/06
Filed: 1970-08-26
Abstract: 1,267,888. Electro-photographic developing process. FUJI PHOTO FILM CO. Ltd. Aug.26, 1970 [Aug.27, 1969], No.41100/70. Heading G2H. An electrostatic latent image on an insulating layer having a conductive backing is developed by spacing the insulating layer from an earthed  development electrode, applying developer comprising toner in an insulating carrier liquid to the space and earthing the electrode and/or the conductive backing through a resistance of 10<SP>6</SP> to 10<SP>12</SP> #. The resistance may be provided in the form of a resistive base for the conductive layer, but it is preferred to earth the electrode through the resistance. In Fig.9 a nozzle 94 sprays developer between an electrode 93 and an image bearing member 10. In Fig. 14, developing liquid 104 floats on a conductive liquid 140 e.g. water or mercury. Liquid 140 may itself act as the developing electrode, or alternatively a conductive plate 141 may be provided. The embodiment of Fig. 10 (not shown) is similar to that of Fig.14 except that the conductive liquid 140 is dispensed with, a conductive plate being essential. In Fig. 11 (not shown), an image bearing member is passed between a number of pairs of rollers, one roller of each pair being earthed through a resistance and being sprayed with developer. These resistances may progressively increase or decrease along the path of travel of the image bearing member.
Patent GB-1204514-A (GB)
Title: Process for the manufacture of alkali paraffin sulphonate solutions containing small amounts of alkali sulphate
IPC: C07C303/42
Filed: 1967-09-11
Abstract: 1,204,514. Alkali paraffin sulphonates. FARBWERKE HOECHST A.G. 11 Sept., 1967 [10 Sept., 1966], No. 41409/67. Heading C2C. Alkali metal paraffin sulphonates having a low content of alkali metal sulphate are prepared from an aqueous extract which is obtained by the sulphoxidation of one or more n-paraffins having a chain length of up to 18 carbon atoms, wherein the main part of the hydrotropically dissolved paraffin is separated from the extract by addition of a low molecular weight alcohol containing 1 to 4 carbon atoms, the aqueous alcoholic solution obtained thereby being neutralized with an alkali and the precipitated alkali sulphate is separated. The alcohols are preferably ethyl or methyl alcohol and may contain up to 20% water. The alkali may be sodium or potassium hydroxide. The paraffin remaining in the alcoholic solutions of the acids may be extracted with a saturated aliphatic hydrocarbon having a boiling point of up to 120‹ C., e.g. alkanes of 5-8 C atoms.