baber/WOPTO huggingface dataset:
Patent GB-1328585-A (GB)
Title: Epoxidation process
IPC: C07D301/14
Filed: 1971-10-04
Abstract: 1328585 Epoxidation FMC CORP 4 Oct 1971 [9 Oct 1970] 46086/71 Headings C2C and C2U Liquid olefinic material that dissolves at least 5% of its weight of peracetic acid, has a boiling point higher than that of acetaldehyde, and is non-reactive with acetaldehyde at the temperatures involved, is epoxidized in a process comprising bringing vaporous peracetic acid in admixture with acetaldehyde into contact with the liquid olefinic material in a contactor, and introducing a strip gas near to the exit of the contactor to facilitate the separation and removal of unreacted acetaldehyde from the liquid to be oxidized. In the example, soybean oil is epoxidized. Olefinically unsaturated liquids which can be oxidized by the process include unsaturated glycerides and other esters, fatty and other acids, alcohols, hydrocarbons including aromatic and halogenated hydrocarbons, ethers, ketones, polymers and copolymers of dienes and sterols (e.g. cholesterol, ergosterol, sitosterol and taraxasterol).
Patent GB-1294086-A (GB)
Title: Method and means involving electrolysis for producing holes
Inventor: BLEE TIMOTHY JOHN
IPC: B23H9/14
Filed: 1968-11-06
Abstract: 1294086 Electrolytic finishing of holes ASSOCIATED ENG Ltd 4 Feb 1970 [6 Nov 1968 22 Sept 1969] 52680/68 and 46613/69 Heading C7B A hole having required flow characteristics is produced by forming an initial hole in a workpiece, and electrolytically finishing the hole to provide the required fluid-flow characteristics whilst electrolyte flows through the hole, and terminating the electrolytic removal of metal when a predetermined rate of flow of electrolyte through the hole, or a predetermined pressure difference across the hole is attained. Attainment of the desired value may be determined by use of a calibrated hole in conjunction with a dummy electrode. In the form shown, electrolyte is supplied from a header tank 30 via pipe 31a and flowmeter 40a to compartment 13A containing electrode tool 18 and workpiece 14 in which the hole 15 is to be finished. Electrolyte is similarly supplied to compartment 13B containing a dummy electrode 38 and a calibrated hole 35, thus establishing similar pressure drops across the holes 15 and 35. Rates of electrolyte flow are measured by the flowmeters 40a and 40b, and fed to comparator 41; the current supply being terminated when the flow-rates become equal. Apparatus is also described, Fig.4 (not shown) in which the hole to be finished and the calibrated hole are arranged in series to produce equal rates of flow therethrough, the electric current flow being terminated when the pressures across the two holes are equal (or have a prearranged relationship).
Patent GB-1087554-A (GB)
Title: Improvements in or relating to pressure sensitive adhesive compositions
IPC: C09J7/38
Filed: 1964-11-17
Abstract: Water-soluble polyvinyl alcohol/polyethyleneimine pressure sensitive adhesive compositions are stabilized by adding an acid, usually in an amount of at least 3-5 parts by weight per 100 parts by weight of polyethyleneimine. Monobasic and polybasic organic and inorganic acids are suitable; preferred acids are phosphoric, tartaric, citric, oxalic, fumaric and malonic acids. The compositions may also comprise humectants (e.g. glycerine, diethylene glycol and propylene glycol), and/or aliphatic alcohols (e.g. isopropanol and ethanol).  Many examples of compositions are given, including comparative examples of compositions not containing an acid.ALSO:Polyvinyl alcohol/polyethyleneimine pressure sentitive water soluble adhesive coating compositions are stabilised by an acid, usually in an amount of at least 3.5 parts by weight per 100 parts by weight of polyethyleneimine.  The acid may be mono- or polybasic, inorganic or organic.  Suitable substrates are paper, paperboard, cloth, metal sheets and foils, fibreglass, foamed plastics, rubber, cellophane (Registered Trade Mark), wood, and plastic films and sheets derived from polyethylene, polypropylene, polyvinyl chloride, polyethylene glycol terephthalate, polystyrene and polyvinylidene chloride.  The compositions may also comprise humectants, e.g. glycerine, diethylene glycol and propylene glycol; and aliphatic alcohols, e.g. ethanol, isopropanol, as anti-curling agents.
Patent GB-1194219-A (GB)
Title: Herbicidal Compositions
IPC: A01N41/06
Filed: 1967-10-13
Abstract: 1,194,219. Herbicides containing sulphonamides. UPJOHN CO. 13 Oct., 1967 [10 Nov., 1966], No. 46894/67. Heading A5E. A process for combating weeds comprises the application of an ortho-nitrobenzene-sulphonamide wherein R 1  is H, Me or Et and R 2  is H or C 1  to C 12  alkyl. The sulphonamide may 'be formulated with conventional adjuvants, e.g. with a powder of particle size less than 60 microns or with a granular carrier of from 10 to 60 mesh.
Patent GB-1188323-A (GB)
Title: Process for Preparing Non-Woven Fibrous Products from Gel Fibers
Inventor: SPENCE THOMAS CECIL
IPC: D21F11/00
Filed: 1967-02-24
Abstract: 1,188,323. Papermaking. DOW CHEMICAL CO. 24 Feb., 1967, No, 46902/69. Divided out of 1,188,322. Headings D2A and D2B. A web is formed by mixing with an aqueous suspension of fibrous material, of which at least 10% is gel fibres, defined as in the parent specification, a water-soluble acrylamide polymer and then forming the web while maintaining the pH above 4. The polymer may be a homopolymer of acrylamide or a copolymer with up to 40% of another monomer such as acrylic or methacrylic acid, their alkyl esters, methacrylamide, styrene, vinyl acetate, acrylonitrile, methacrylonitrile, vinyl alkyl ethers or vinyl or vinylidene chloride, and is of high molecular weight (at least 750,000). The gel fibres are preferably of polyacrylonitrile. Other fibres, if present, may be of acrylonitrile homopolymers or copolymers with up to 20% of allyl alcohol, vinyl acetate, acrylamide, methacrylamide, vinylpyridine, ethylene-sulphonic acid or its alkali-metal salts. vinylbenzene-sulpbonic acid or its salts, 2- sulphoethyl methacrylate or its salts, vinylcaprolaotam, vinyl-pyrrolidone or their mixtures, or of polyamides or polyesters. The fibres may be in staple form and fibrillated or unfibrillated. The acrylamide polymer may be added before, during or after dispersion of the fibrous material in an aqueous medium. but preferably after beating if the fibres are beaten. In the Examples, the fibres are all gel fibres of acrylonitrile homopolymer, and the water-soluble polymer is of acrylamide and acrylic acid in proportions 70/30. In one Example alum is also added, but it is preferred not to do so.
Patent GB-1198467-A (GB)
Title: Improvements in or relating to Speed-Reduction Devices
IPC: F16H13/08
Filed: 1967-10-16
Abstract: 1,198,467. Variable-speed gearing. SOC DE FABRICA D'lNSTRUMENTS DE MESURE. 16 Oct., 1967 [17 Oct., 1966], No. 47004/67. Heading F2D. An epicyclic stepped friction speed-reduction gear for' driving the shaft A of a magnetic register capstan from a motor M comprises sets (e.g. 3) (Figs. 1 and 2, not shown) of planetary balls B 1 , B 2  &c. retained in P.T.F.E. cages C 1 , C 2  &c. freely mounted on the shaft A, each set of balls e.g. B 2  rolling between two plane spring- steel discs, one disc F 2  being fixed in a surrounding casing, and the other D 1  being rotationally fast with the preceding ball cage C 1 , the cages C 1 , C 2 , C 3  &c. being in series such that any one cage, starting at C 1 , may be locked to the shaft by a radial key R to effect a reduction ratio, which speed reduction ratios form a geometrical progression of inverse ratio 2, each ball cage unit running at half speed of the preceding unit. The drive from the motor M is through a roller G 1  or G 2  frictionally engaging a disc L carried by a member H having a face F o  engaging the first set of planetary balls B 1 . The discs F 1 , D 1  &c. have a thickness of 4 to <SP>5</SP>/ 16  of a millimetre and the rotatable discs D 1  are set or glued on the P.T.F.E. cages which are separated by thrust roller bearings.
Patent GB-958456-A (GB)
Title: Polyethylene compositions
IPC: D21H19/22
Filed: 1962-12-13
Abstract: A polyethylene composition contains as a slip agent an acetylated monoglyceride. Also present may be a high temperature adhesive such as a resin obtained by the polymerization of unsaturated compounds obtained from the deep cracking of petroleum or a terpene-type hydrocarbon resin obtained by polymerizing unsaturated compounds obtained by distilling wood. The polyethylene component may contain up to 50% by weight of other resin. The acetylated mono glyceride may contain up to two acetic acid moieties. The other fatty acid moiety is preferably a fatty acid containing 8 to 22 carbon atoms.ALSO:Paper is coated with a composition comprising polyethylene, a high temperature adhesive, and an acetylated monoglyceride of a fatty acid containing 8-22 carbon atoms.  The adhesive agent may be a resin obtained by polymerization of unsaturated compounds obtained from the deep cracking of petroleum or a terpene-type hydrocarbon resin obtained by polymerizing unsaturated compounds from distilling wood. The compositions are applied by hot melt coating.
Patent GB-1428697-A (GB)
Title: Multi-needle sewing machines
IPC: D05B35/08
Filed: 1973-10-09
Abstract: 1428697 Sewing machine VIRGINIO RIMOLDI & C SpA 9 Oct 1973 [20 Oct 1972] 47044/73 Heading DIG A multineedle sewing machine forming stitches which includes a cover thread has an oscillating shaft 17 to which is secured the cover thread laying arm or looper 21 and a cover thread take up and pull off lever 24.
Patent GB-1147142-A (GB)
Title: Improvements in or relating to liquid-fuel burners
Inventor: FINDLAY WILLIAM HUNTER
IPC: F23D11/08
Filed: 1965-06-08
Abstract: 1,147,142. Oil burners. JAMES HOWDEN & CO. Ltd. 24 March, 1966 [8 June, 1965], No. 47559/68. Divided out of 1,147,141. Heading F4T. A burner with a rotary tube 20 and wheel 24 to spray fuel into a combustion chamber and an impeller 26 to cause a flow of combustion air into the chamber has fuel supplied to an annular cup 8 from which it is lifted by rotation of a sleeve 17 co-operating with a helical groove 16 in a stationary core member 13, the air flow being arranged to cool the reservoir 8 and the motor driving the sleeve 17 and impeller.
Patent GB-1160789-A (GB)
Title: Apparatus for Optimizing the Output Flow Rate from a Particulate Processing System
IPC: B02C25/00
Filed: 1967-10-23
Abstract: 1,160,789. Ball mills: grinding cement. BUNKER-RAMO CORP. 23 Oct., 1967 [25 Oct., 1966], No. 48064/67. Heading B2A. In a cement grinding plant comprising a conveyer 34 for feeding new material and reject material to a ball mill 48 the output from which is fed to a separator 84, signals H and [i] representing respectively the hardness of the clinker and particle size distribution of the new material are fed to a digital computer 110 which generates output signals IM and DM controlling respectively motors 16, 22, 30 for determining the fresh input rate and the position of a damper blade 86 in the separator. The computer has also fed thereto signals [e], [f], [p] and '[r] representing the particle size distribution of respectively the ball mill input, the ball mill output, the product and the reject material. The feeding of the [p] and [r] signals to the computer updates its response to the H and [i] signals. The computer has further fed thereto signals I, P and R representing the flow rates of respectively new material, product and reject material. In the plant shown, the respective flow rates are determined by weigh belts 32, 102 and 46, and the position of the damper blade 86 is sensed by a sensor 88.
Patent GB-1074101-A (GB)
Title: Feeding device for ironing machines
Inventor: BOAM HARRY
IPC: D06F67/04
Filed: 1962-12-20
Abstract: 1,074,101. Laundry feeding machines. MANLOVE, ALLIOTT & CO. Ltd. Dec. 20, 1963 [Dec. 20, 1962], No. 48120/62. Heading D1A. A carrier 16 reciprocates transversely to the direction of desired feeding and is provided with dips 25 into which operatives, at one or both ends of the path of reciprocation, fix a sheet. When the carrier 16 reaches the end of travel away from the operative the dips 25 are automatically opened and the sheet is dropped onto rollers 36 which feed it onto a conveyor 39. The conveyor 39 passes through the nip of rollers 45, 46 to grip the sheet which is straightened out by brushes 43, 44, 48 which are controlled by photocells 55, 56, 57 operating solenoids 51, 52, 53, 54 so that the brushes only operate while the sheet is gripped in the nip 45, 46.
Patent GB-1024193-A (GB)
Title: Aluminium organic acid salt compositions
Inventor: HALPERN ALFRED
IPC: C07F5/06
Filed: 1962-12-28
Abstract: The invention comprises the following aluminium double salts-the acetate propionate, citrate propionate, lactate propionate, and tartrate propionate, and the corresponding subpropionates; and their preparation by reacting an aluminium salt and propionic acid salt in an inert medium to obtain the aluminium propionate or subpropionate and reacting this with the appropriate organic acid in an inert solvent.ALSO:Pharmaceutical compositions comprise, with carriers, aluminium propionate and aluminium subpropionate, and the double salts of these with acetic, citric, lactic, and tartaric acids. Preparations mentioned are solutions, emulsions, lotions, creams, ointments, powders for topical application.  The compounds have urease-inhibiting, antiseptic, astringent and anti-inflammatory action.
Patent GB-1492807-A (GB)
Title: Reduction of dislocation in multilayer structures
IPC: H01S5/32
Filed: 1974-11-12
Abstract: 1492807 Semiconductor devices; lasers WESTERN ELECTRIC CO Ltd 12 Nov 1974 [12 Nov 1973 25 April 1974] 48842/74 Headings H1K and H1C Dislocations in a substrate having the zinc blends crystallographic structure are substantially prevented from extending into an epitaxial layer also having the zinc blends structure by selecting the thickness and composition of the epitaxial layer so that a unidirectional array of misfit dislocations is generated at the interface. The substrate is Al x Ga 1-x As, wherein x may be O and the preferably LPE grown layer Al y Ga 1-y As 1-y P z  wherein y is greater than x, z is between 0À03 and 0À007 for a thickness in the range 1 Ám. to 3 Ám., and is such that z/(y-x) is from 0À03 to 0À05, whereby a slight mismatch at the growth temperature caused by the presence of p results in a substantially stress-free arrangement at room temperature, as disclosed in Specification 1,492,808. The length of the dislocation in the plane of the interface may be infinite, i.e. it extends to the edge of the wafer (Fig. 1c not shown). The epitaxial and any further layers will be substantially dislocation free, this being desirable in single and double heterostructure junction lasers and other lightemitting devices. As shown, a double heterostructure laser comprises a Si-doped n-GaAs layer 10, a Te-doped n-Al y Ga 1-y Ga 1-z P layer 12, a Ge-doped n- or p-GaAs layer 14, a Ge doped p-Al q Ga 1-q As 1-p P p  layer 16, wherein for a symmetric wave guide y=q and z=p, and a Ge-doped p-GaAs layer 18 optionally having a high-conductivity surface formed by diffusion of Zn. Contacts 20, 22 are deposited and a resonator is formed by mirrors 24, 26 typically cleavage faces of the GaAs crystal, and heat sinks may be associated with the assembly. Current applied to contact 30 may be confined to zone 30 lying between nip resistivity zones formed by proton bombardment to the depth of junction 13.
Patent GB-1074442-A (GB)
Title: A process for the hydrogenative dearomatization of sulphur-containing straight-run hydrocarbon oil distillates
IPC: C10G65/08
Filed: 1965-11-17
Abstract: A process for the hydrogenative dearomatization of a sulphur-containing straight-run hydrocarbon oil distillate comprises first desulphurizing the sulphur-containing straight-run hydrocarbon oil distillate to a sulphur concentration of 300 parts per million or less followed by hydrogenating the desulphurized distillate in the presence of a sulphur-insensitive catalyst. Desulphurization may be in the presence of hydrogen.  Catalysts for both stages may comprise a sulphide of chromium, molybdenum, tungsten, iron, nickel and/or cobalt supported on alumina.  The catalysts may be in the form of fixed or fluidized beds and the processes may take place in the liquid or vapour phase.  Conditions for desulphurization may be 5 to 70 atmospheres, 275-400 DEG  C., S.V. 0.5 to 12 tons per cubic metre per hour, and hydrogen ratio 10 to 250 m3. per ton; for hydrogenation 25 to 150 atmospheres, 150 DEG -400 DEG  C., S.V. 0.4 to 10 tons/m.3/hour, and 25 to 1900 m.3 of hydrogen per ton of oil.
Patent GB-1442835-A (GB)
Title: Toner for use in developing electrostatic images
IPC: G03G9/097
Filed: 1973-10-19
Abstract: 1442835 Toner compositions KONISHIROKU PHOTO INDUSTRY CO Ltd 19 Oct 1973 [21 Oct 1972 23 Oct 1972] 48920/73 Heading C3P [Also in Divisions G2-G3] Toners for developing electrostatic images comprise (a) a colouring agent, (b) a styrene polymer and (c) polyethylene or polypropylene, optionally together with (d) paraffin wax and (e) metal salts of fatty acids. The colouring agent may be an organic or inorganic pigment. The styrene polymer may be a homopolymer or copolymer with other monomers, e.g. chlorostyrene, vinyl naphthalene, olefins, vinyl halides, vinyl esters, vinyl ethers, acrylic and methacrylic esters, amides and nitriles, vinyl ketones or N-vinyl heterocyclic compounds; or a mixture of a styrene polymer with a homopolymer or copolymer of such other monomers or with rosin-modified phenolic resins, oil-modified epoxy resins, polyurethane resins, cellulose resins or polyether resins. The metal salt may be a cadmium, barium, lead, iron, cobalt, nickel, copper, strontium, calcium, magnesium, zinc, manganese or aluminium salt of stearic, oleic, palmitic, linoleic, ricinoleic, caproic or caprylic acid. The toners may be mixed with iron powder carriers to form developers. Examples describe toners comprising colouring agent, polyproylene and (1) styrene resin, (2) styrene resin and polyvinyl butyral, (3) styrene/ dimethylaminoethyl methacrylate copolymer, (4) styrene / 3 - chloro - 2 - hydroxypropyl methacrylate copolymer, (5) styrene/stearyl methacrylate copolymer, (6 and 21) styrene resin and zinc stearate, (7) styrene/butyl methacrylate copolymer and lead stearate, (8) styrene/butyl methacrylate/methyl methacrylate copolymer and barium stearate, (9) styrene/ ethyl methacrylate and vinyl chloride/vinyl acetate copolymers and polyethylene wax, (10) styrene resin and ethylene bis-stearamide, (11) styrene resin and synthetic wax, (12) styrene/ ethyl methacrylate and higher fatty acids, together with (13) calcium palmitate, (14) styrene resin and paraffin wax, (16) styrene resin, polyethylene wax and paraffin wax, (17) styrene resin, polyvinyl butyral and paraffin wax, (18) styrene/butyl methacrylate copolymer and paraffin wax, (19) styrene resin, polyvinyl butyral, polybutyl methacrylate and paraffin wax, (20) styrene/ethyl methacrylate and vinyl chloride/vinyl acetate copolymers, polyethylene and paraffin wax, (22) styrene resin, polyvinyl butyral, paraffin wax and calcium palmitate and (23) styrene/butyl methacrylate copolymer, polyethylene wax, paraffin wax and lead stearate; and comprising colouring agent, polyethylene and (15) styrene resin.
Patent GB-1486323-A (GB)
Title: Process and apparatus for separation of liquid phases
IPC: B01D11/04
Filed: 1974-11-12
Abstract: 1486323 Separating liquid phases METALLGESELLSCHAFT AG 12 Nov 1974 [16 Nov 1973] 48973/74 Heading B1D Fig.1     A process for separating the two phases of a liquid dispersion comprises passing the dispersion in two streams in opposite directions and at substantially equal rates through a separator of circular cross-section, comprising sharp-edged turnings of stainless steel. As shown the dispersion is fed from inlets 1, 1' through separator chambers 7, 7' filled with stainless steel turnings, the light and heavy phases being discharged through outlets 3 and 2 respectively. In Fig. 5 (not shown) the separator is provided with a central inlet and two pairs of outlets at its periphery.
Patent GB-1074286-A (GB)
Title: Improvements in and relating to the production of chlorine dioxide
IPC: C25B1/26
Filed: 1963-12-11
Abstract: A sodium chlorate solution is obtained by the electrolysis of brine in a diaphragmless cell in a first stage utilizing magnetite or a graphite anode until the residuary NaCl content is not lower than 70g/litre, and in a second stage with a platinized metal or a platinum anode until the NaCl content is between 10% and 3% by weight of the final chlorate content.  The initial brine solution preferably has an NaCl content of between 280g/litre and the saturation point and 1 to 10 gms/litre of an alkali metal dichromate or chromate may be added to the initial solution. During the electrolysis a quantity of NaCl representing up to 33% by weight of the initial NaCl content may be added to the solution either in the first or second stages or between the stages. The cathodes of the electrolytic cells are preferably graphite, cast iron, or steel.ALSO:Chlorine dioxide is-produced by reducing with SO2 a solution of sodium chlorate acidified with an inorganic acid, said solution being prepared in a two-stage electrolytic process in which in the first stage a sodium chloride solution is subjected to electrolysis until the sodium chloride content is not substantially less than 70 gm./ litre, and in the second stage electrolysing the electrolyte from the first stage until the sodium chloride content is a predetermined percentage of the sodium chlorate content, and feeding the resulting sodium chlorate and sodium chloride solution to a chlorine dioxide reactor. The first stage is preferably continued until the sodium chloride content is at least equal to 70 gm./litre, and the second stage until the sodium chloride content is 10 to 3% of the sodium chlorate content.  The first stage electrolysis is preferably effected using magnetite and graphite anodes, and the second stage using platinized metal or platinum anodes.  1 to 10 gms./litre of an alkali metal dichromate may be added to the initial solution, which solution has an NaCl content of between 280 gm./litre and the saturation point. An addition of NaCl of up to 33% by weight of the initial quantity may be added to the electrolyte in the first or second electrolysing stages or between the stages. The cathodes of the electrolysing cells are preferably graphite, cast iron or steel.
Patent GB-1271349-A (GB)
Title: Gas discharge laser
IPC: H01S3/22
Filed: 1970-10-15
Abstract: 1,271,349. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 15 Oct., 1970 [18 Oct., 1969], No. 49026/70. Heading H1C. A quartz gas laser tube 1 having opposed reflector plates 9, 11 secured to its ends contains a quartz auxiliary tube 7 in which the light path is confined, the auxiliary tube being supported at its ends by plates 5, 6 which fit into enlarged bore portions 3, 4 of the laser tube and engage reduced portions of the auxiliary tube. Both plates are secured by enamel 8 to the laser tube, and plate 6 is similarly secured to the auxiliary tube, the other end of this tube being a sliding fit in plate 5. Apertures 2 for gas pressure equalization are provided in one plate 5. The two reflector plates are respectively planar and curved and are provided with dicroic layers 10, 12. Electrodes 14, 15 are provided in respective side-pockets. Dimensions, gas pressure of a He, Ne content and frequency are given.