baber/WOPTO huggingface dataset:
Patent GB-1343669-A (GB)
Title: Manufacture of carbon shaped articles
IPC: C04B35/83
Filed: 1971-12-29
Abstract: 1343669 Composite carbon fibre-containing articles KUREHA KAGAKU KOGYO KK 29 Dec 1971 [29 Dec 1970 (2)] 60432/71 Heading C1A Composite articles are made by mixing with an organic binding material having a carbonization yield of more than 10%, a heat-treated stabilized organic fibre having an average diameter of less than 40 microns, a ratio between fibre length and diameter of more than 5, a hydrogen/carbon atomic ratio of from 0À25 to 0À8, an ether-bonded type oxygen content of from 3 to 15%, a carbonization yield of from 50 to 92% and a linear shrinkage of from 4 to 25% at a temperature of 1000 C., shaping the mix, and then heat-treating it under carbonization or graphitization conditions. Inorganic or carbonaceous aggregate may be mixed with the stabilized fibre prior to shaping. The fibre heattreated may be of cellulose, polyacrylonitrile, polyvinyl alcohol, lignin, phenol resin, furfural resin, or pitch. The binder material may be coal tar or pitch, petroleum tar or pitch, polyvinyl chloride, polyvinylidene chloride, polyacrylonitrile, a phenol resin, an epoxy resin, a diarylphthalate, a furfural resin, or an unsaturated polyester resin. The aggregate may be a refractory clay, sand, dolomite, siliceous stone, magnesia, alumina, zirconium oxide, silicon dioxide, silicon carbide, carbon or graphite. The fibres may be in the form of a sheet of paper, felt, or cloth. The product may be in the form of a graphitic plate, tube, electrode, an alumina or graphitic brick, or a laminate.  The heat-stabilized fibres are made by heattreating an organic fibre at a temperature of from room temperature to 350 C. in an oxidizing atmosphere. In example I, a melt-spun pitch fibre was heat-treated in an oxidizing gas containing 3% by volume of nitrogen dioxide, by raising the temperature to 250 C. by incremental temperature rises of 1À5 C. per minute. In Example V the fibre of Example 1 was further heat-treated at a temperature of 300 C. for 60 minutes in ammonia gas. In Example VIII, the infusible fibre is made from a polyacrylonitrile fibre having a diameter of 15 microns by heattreatment for 5 hours at a temperature of 220- 240 C. in air containing 3% by volume of NO 2 .
Patent GB-1247190-A (GB)
Title: A rotatable impeller for dispersing particulate matter in a liquid medium
Inventor: MIDGETTE ERNST LELAND
IPC: B01F7/00
Filed: 1968-12-23
Abstract: 1,247,190. Mixing apparatus. E. L. MIDGETTE. 23 Dec., 1968 [6 Feb., 1968], No. 61157/68. Heading BIC. Mixing apparatus, particularly for dispersing particulate material such as paint pigment, in a liquid, comprises an impeller which rotates in the liquid. The impeller comprises a stack of spaced rings 19 on a base plate 12, spaced by washers 21 on securing bolts 20. One inner edge of each ring is bevelled to form a series of venturis between which the liquid and material flow by centrifugal force generated by viscous forces on the ring surfaces. The gaps between the rings may be of constant width outwardly of the bevelled part, as shown, or may widen (Fig. 6, not shown). The plate may have a further spaced ring above it (Fig. 7, not shown), or, for material which is difficult to wet, may have impeller vanes 15. In operation, the impeller is immersed in the centre of a container and rotated to create a central vortex in which the particulate material is dropped. The impeller is then moved towards the side of the container and rotation is continued until the material has dispersed.
Patent GB-1285087-A (GB)
Title: Oil compositions
Inventor: MEIJ PIETER HENDRIKUS VANDER
IPC: C10L1/14
Filed: 1969-12-18
Abstract: 1285087 Crude oil and fuel oil compositions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 18 Dec 1969 61724/69 Headings C5E and C5G The pour points of crude mineral oils or fuels, containing waxes with a melting point above 35 C. and a boiling point above 350 C., are depressed by the addition of 0À001-2 wt. per cent of a polymer A comprising aliphatic hydrocarbon side chains with at least 14 carbon atoms and which has been obtained by the polymerization of compounds comprising an olefinically unsaturated bond and 0À001-2 wt. per cent of a polymer B which has a structure corresponding to that obtained by copolymerization of ethylene and 1-40 wt. per cent of an olefinically unsaturated aliphatic monomer comprising 3-5 carbon atoms. Suitable polymers A have unbranched saturated side chains of up to 30 carbon atoms attached to the main chain either directly or via C, O, N, S or P atoms and have molecular weights of 1000-1,000,000. Polymers A can be formed by the polymerization or copolymerization of olefinically unsaturated compounds of which at least a portion have long hydrocarbon chains or by introducing C 14  or longer side chains into a preformed polymer of olefinically unsaturated monomers. Extensive lists of suitable polymers A are given. Copolymer B can be made by polymerizing ethylene with butene, butadiene, isoprene, acrylonitrile, vinyl acetonitrile, ethyl vinyl ether, divinyl ether, allyl ethyl ether, methyl acrylate, ethyl acrylate, vinyl proprionate or vinyl acetate or by hydrogenating a copolymer of butadiene and an olefinically unsaturated aliphatic monomer comprising 3-5 carbon atoms, and has a molecular weight of 700-100,000. In an example a homopolymer of n-eicosylacrylate and a copolymer of ethylene and vinyl acetate are added to a residual fuel oil.
Patent GB-2025845-A (GB)
Title: Two Circular Saw Blades Mounted for Adjustment of the Distance Between their Centers
IPC: B27B5/34
Filed: 1978-07-07
Abstract: One of the blades 1 is fixed to the driving shaft 6 and the other of the blades 11 is rigid with a bushing 8 keyed to a sleeve 4 rotating with the driving shaft, the bushing being able to slide along the sleeve, under the action of a lead nut 16 coupled to a screw or worm driving shaft 17. <IMAGE>
Patent GB-2001024-A (GB)
Title: Wing lift device
IPC: B64C23/06
Filed: 1978-07-10
Abstract: A device for enhancing the lift capability of an aircraft wing is characterized by at least one forwardly projecting finger member 30 mounted on the leading edge 14 of the wing 10. The finger generates opposed vortices trailing backwardly across the upper surface 18 of the wing as the airflow moves upwardly and around the lateral edges of the finger. As the opposed vortices trail backwardly over the upper surface of the wing, the airflow patterns across that surface of the wing are modified to produce an increase in lift. <IMAGE>
Patent GB-2002675-A (GB)
Title: Moulding cushions
IPC: B29C44/12
Filed: 1978-07-21
Abstract: A foam member suitable for use in automobile seats or in beds comprises a polyurethane foam body 3 having over at least a portion of its surface a surface layer 1 of flexible and porous material provided over at least part of its inner surface with a coating 2 impervious to a polyurethane foam-forming reaction mixture 3'. The cushion may be manufactured by mounting the surface layer 1 bearing the coating 2 within a mould 5 injecting a foam- forming mixture 3' into the mould cavity to contact the surface of the surface layer 1 bearing the coating 2 e.g. of adhesive and closing the mould 5 with a cover 6. A foam layer (4, Fig. 6 not shown) impregnated with polyurethane may be provided between the coating 2 and the foam body 3 to improve the cushioning effect of the cushion. The layer 1 may be of polythene or polyurethane foam, leather, cloth or unwoven fabric. The layer 1 may be positioned in the mould using pins (7, Fig 4) adhesive tape or by wrapping the coating 2 around the mould cover 6 (Fig 5). <IMAGE>
Patent GB-2001997-A (GB)
Title: Phosphazene-plasticized organic polymeric compositions
IPC: C08K5/5399
Filed: 1978-08-02
Abstract: Phosphazenes are plasticizers for organic polymers. The plasticized compositions may be formed into coatings, sheets or films or into flexible or semi- rigid foams. The blends are fire retardant and produce little or essentially no smoke when heated in an open flame.
Patent GB-2002801-A (GB)
Title: Chromogenic compounds for use as color formers in copying recording materials
IPC: C07D493/10
Filed: 1978-08-08
Abstract: The chromogenic fluoran compounds of the invention are of the formula:   <IMAGE> wherein R1 is alkyl of from five eight carbon atoms; R2 is alkyl of from one to eight carbon atoms, benzyl, cyclohexyl, phenyl or phenyl substituted by alkyl of from one to four carbon atoms, alkoxy of from one to four carbon atoms or halogen; R3 is enzyl; X1 and X2 are independently hydrogen or alkyl of from one to four carbon atoms, X3 is hydrogen, alkyl of from one to four carbon atoms, halogen or trifluoromethyl; and n is 1 or 2; providing that R1 does not represent amyl when R2 is alkyl of from 1 to five carbon atoms, X1 and X2 are each hydrogen, X3 is hydrogen, alkyl of from one to four carbon atoms or halogen. These compounds are particularly suitable for use in providing high quality pressure- or heat-sensitive copying sheets in which a color former, dissolved in an organic solvent, is microencapsulated on one surface of a sheet and a sheet coated with an electron-accepting substance is provided in operative association therewith.
Patent GB-2003004-A (GB)
Title: Improvement of signal/noise ratio in pyroelectric vidicon
IPC: H04N5/33
Filed: 1978-08-15
Abstract: A pyroelectric vidicon is provided with an improved signal-to-noise ratio by essentially eliminating pedestal noise and using a reflected or scattered beam electron multiplier 13, 14 to provide signal gain to overcome preamplifier noise. Pedestal noise is substantially eliminated by trimming the charge on the target 12, during the line flyback period, down to a small fixed potential, q above the quiescent value VQ set by secondary emission: a second line sweep during the flyback period or a sweep by a beam from an auxiliary cathode may be employed to trim the target potential. To improve scatter of the beam the target may be pyramidally reticulated. <IMAGE>
Patent GB-2004863-A (GB)
Title: Gradient index optical waveguide
IPC: G02B6/028
Filed: 1978-09-22
Abstract: In the method of making a preform for a high numerical aperture gradient index optical waveguide, the concentrations of two dopant constituents are changed during fabrication. Concentration of the first dopant, e.g. GeO2 is changed radically as the preform is built up in order to produce the desired radical refractive index gradient. The concentration of the second dopant, e.g. B2O3 is changed radically to compensate for the radial change in thermal expansion coefficient caused by the varying GeO2 concentration. B2O3 may be added to an outer cladding layer to make the thermal expansion coefficient of the cladding equal to or greater than the composite thermal expansion coefficient of the gradient index core. The magnitude of residual tension at the inner surface caused by thermal expansion gradients is reduced and premature cracking of the preform is eliminated.
Patent GB-2008117-A (GB)
Title: Vinylidene chloride by vapor phase dehydrochlorination of 1,1,2- trichloroethane
IPC: C07C17/00
Filed: 1978-11-17
Abstract: A process for maintaining catalytic selectively to vinylidene chloride in the vapor phase catalytic dehydrochlorination of 1,1,2-trichloroethane comprises contacting a gaseous mixture of 1,1,2- trichloroethane and a non-reactive diluent with a catalyst in the vapor phase at a temperature of at least 375 DEG C. and a total pressure of at least 3.5 atmospheres while maintaining the partial pressure of 1,1,2-trichloroethane in the gaseous mixture at not more than 3.0 atmospheres.
Patent GB-2023390-A (GB)
Title: Blade assembly for rotary trimmer
IPC: A01D34/73
Filed: 1978-12-05
Abstract: A cutter blade assembly for a rotary trimmer, comprises a circular hub 11 formed with a central opening 13 for mounting it on the drive shaft of a rotary trimmer and three blades 15, 16, 17 integral therewith, and extending outwardly from said hub in equiangularly spaced relation. Each blade is formed with a convex cutting edge 18, the inner end portion 19 of which is tangential to the hub and a comparatively short straight cutting edge 20 on the side of the blade opposite to that having the curved cutting edge. Either of these cutting edges is adapted to be effective when it is the leading edge as determined by the direction of rotation of the trimmer drive shaft and the position of the blade assembly relative thereto. The blade assembly is of rubber which may be reinforced by plastic fibres or layers of fabric. <IMAGE>
Patent GB-2013215-A (GB)
Title: Intumescent Composition
IPC: C09K21/14
Filed: 1978-12-27
Abstract: An intumescent composition which can be applied to an article as a solution or as a putty contains the following ingredients: a binding agent; an inorganic phosphate; a melamine type compound; starch, dextrin or carboxymethyl-cellulose; pentaerythritol; and optionally a foaming agent.
Patent GB-2013664-A (GB)
Title: A Method of Preparing an Anthraquinone
IPC: C07C45/28
Filed: 1979-01-19
Abstract: An anthraquinone is prepared by oxidation of o-benzyltoluene with <IMAGE> nitric acid in two oxidation stages, the first oxidation stage being performed with a nitric acid of 25 to 50 weight-% strength under atmospheric pressure at temperatures of approximately 80 to 110 DEG C in the presence of known oxidation catalysts, after which the liquid oxidation product is further oxidised in the second oxidation stage with a nitric acid of 8 to 15 weight-% strength under a pressure of approximately 10 to 30 bar at temperatures of approximately 150 to 180 DEG C until cessation of nitrogen oxide evolution, the method also including the steps of esterifying the raw o-benzoylbenzoic acid with methanol, distilling the methyl ester, and converting the o-benzoylbenzoic methyl ester into anthraquinone by heating with concentrated sulphuric acid at a temperature of approximately 150 DEG C.
Patent GB-2041916-A (GB)
Title: Process for the Recovery of Dimethyl Terephthalate From Polyethylene Terephthalate Polymer Waste
IPC: C07C69/82
Filed: 1979-02-08
Abstract: A process to improve the yield of the recovery of dimethyl terephthalate (DMT) from poly (ethylene terephthalate) waste in a conventional high pressure methanolysis reaction using methanol, a suitable catalyst and high pressure to convert the polyester waste into dimethyl terephthalate, the improvement of the process comprising the incorporation of a second catalyst capable of converting the by-product formed in the reaction into dimethyl terephthalate, thereby substantially increasing the overall yield of the reaction. The second catalyst, for example an alkaline transesterification catalyst may be added to byproduct- containing filtrate after removing solid DMT obtained with the first catalyst (e.g. zinc acetate).
Patent GB-2015615-A (GB)
Title: Room modules with keying for cast concrete
IPC: E04B1/348
Filed: 1979-02-13
Abstract: This invention relates to accommodation units. The drawing shows an accommodation unit comprising a box shaped metal housing having corner posts (10) side walls (11) floor and ceiling panels, an end panel (32) with a doorway (33) and an end panel with a window unit (29). The outer faces of the side walls (11) have vertically extending parallel T-section ribs (17) thereon which are embedded in concrete cast between adjacent side walls of two such units to provide a reinforced wall. The unit may incorporate a separate service module 71, Fig. 10 secured to one end. Fig. 9 shows a unit collapsed for transportation. <IMAGE>
Patent GB-2025013-A (GB)
Title: A Furnace Chamber Adapted to Form a Continuous Ring Furnace of the Hoffman Type
IPC: F27B13/08
Filed: 1979-03-12
Abstract: A continuous ring furnace of the Hoffman type comprising: (a) an outer furnace structure (11, 12, 33); (b) hollow partitions; (c) fire pits independent of one another and of tapered shape; (d) a base (34-Figure 10) provided with cooling means (33) to render the thermal efficiency of the furnace chamber (10) independent of the nature of the ground on which the furnace chamber (10) stands; (e) a bottom cavity (35, Fig. 11) in a bottom region of the furnace chamber (10) having an aerodynamic profile that dynamically controls gas flow in the chamber (10); (f) a cover (40- Fig. 11) mounted on a ridge portion of the furnace chamber (10) allowing individual gas flows within the cover which are substantially turbulence free, and (g) sealing means between the cover and the ridge portion to render the connection between the cover (40) and furnace chamber (10) gas-tight.   <IMAGE>
Patent GB-2017269-A (GB)
Title: Safety Valve
IPC: F16K17/04
Filed: 1979-03-14
Abstract: The valve has a valve seat 1 attached to the wall 3 of a closed space, e.g. the crankcase of an I.C. engine, and a closure member 5 urged into contact with the seat. When an overpressure occurs in the closed space, the closure member 5 will lift off the seat against the force of spring 6. A flame protection device 10 is arranged on the upstream side of the valve seat, and a further flame protection device 11 is arranged on the downstream side of the valve seat to prevent burning gas from issuing from the valve. <IMAGE>
Patent GB-2015810-A (GB)
Title: Plates for electrical storage cells
IPC: H01M4/74
Filed: 1979-03-15
Abstract: The invention relates to plates for electric storage cells comprising a foraminous support structure 11, such as a porous fabric of glass fibre, sandwiched between two expanded metal meshes 17,18 the composite structure carrying electrochemically active material. The invention also relates to a method of forming such plates including the steps of expanding a metallic strip into a gull wing configuration having a central unexpanded region 3, introducing the fabric between the expanded arms 17, 18 of the strip which are then folded together, applying active material to the composite strip and separating it into elements. <IMAGE>
Patent GB-2019954-A (GB)
Title: Turbomachine housing
IPC: F04D29/52
Filed: 1979-03-28
Abstract: The housing, e.g. for the compressor of a gas turbine engine, comprises radially spaced outer and inner annular casings 21, 22, the inner casing 22 supporting stator vanes 28 and having one or more flanges 30 to 36 projecting towards the outer casing 21. The, or each, flange 30 to 36 has an axially extending portion 38 defining one or more location spigots. The outer casing 21 is provided with a recess in which each spigot 38 engages, such that the outer casing 21 may be passed over the inner casing 22 from one end to secure the inner casing 22 and constrain it against movement in radial directions. Slugging masses may be provided on the outer casing 21 in the region where the spigots 38 engage. <IMAGE>
Patent GB-2023608-A (GB)
Title: Steroidal[16???,17]cyclohexene and Naphthalene-21-oic Acids and Esters
IPC: A61P29/00
Filed: 1979-05-25
Abstract: Steroids having the formula   <IMAGE> and esters thereof, wherein X is hydrogen or halogen; Y is hydrogen, methyl or fluorine; R4 is chlorine, fluorine or hydroxy and R5 is hydrogen or R4 and R5 together are =O; R2 and R3 are each hydrogen, alkyl, phenyl or phenyl substituted with one or more halogen alkyl or alkoxy groups, or R2 and R3 together with the double bond to which they are attached form a benzene ring; R6 and R7 are each hydrogen, alkyl, alkoxy, formyl,   <IMAGE> phenyl or cyano and in addition hydroxy, halogen, carboalkoxy and alkylcarbonyl when R2 and R3 are separate, with the proviso that when R6 and R7 are different one of R6 and R7 is hydrogen; R8 is hydrogen or -CH(R9)(R10) wherein R9 and R10 are each hydrogen or alkyl, have anti- inflammatory activity. Preparation (i) from the corresponding 21-ols by oxidation via 20-one-21-als (and/or 21-acetals thereof) and/or 20-hydroxy-21-oic acids (and/or 21-esters thereof); or (ii) from the corresponding ???<16>-21-ols (lacking the fused ring) by oxidation as in process (i) followed by fusing the cyclohexene or tetrahydronaphthalene group into the 16,17-position.
Patent GB-2029013-A (GB)
Title: A method of and a device for chemical analysis
IPC: C12M1/40
Filed: 1979-05-31
Abstract: A method of chemical analysis comprises converting a substance catalytically with an enzyme by applying the substance in liquid, dissolved or suspended form to one side of a semipermeable membrane at the other side of which is located at least one enzyme, and detecting the reaction product. The invention also includes a device suitable for carrying out the method.
Patent GB-2026525-A (GB)
Title: Phthalocyanine reactive dyestuffs
IPC: C09B62/10
Filed: 1979-06-25
Abstract: Reactive dyestuffs of the formula   <IMAGE>  wherein  Pc is a phthalocyamine radical  A is H or optionally substituted alkyl, R1 and R2 are H or optionally substituted alkyl, cycloalkyl or aryl or (R1+ R2) may be alkylene optionally interrupted by hetero atoms, Y is a NR3R4 or NHR5 group, wherein R3 is H or optionally substituted alkyl or aryl, R4 is optionally substituted alkyl, or (R3 +R4) may form a ring optionally including a hetero atom,  R5 is H or substituted aryl,  a is 0-2  b is 1-3 and  c is 1-3 and a+b+c</=4, and their use for dyeing and printing cellulose-containing materials, such as natural and regenerated cellulose, by processes known for this. The new dyestuffs are also suitable for dyeing materials containing amide groups, such as wool, silk and synthetic polyamides. The resulting dyeings are distinguished by good fastness properties.
Patent GB-2055327-A (GB)
Title: Identity document
IPC: G07F7/08
Filed: 1979-08-04
Abstract: A document having an eye visible and magnetically distinctive pattern is comprised of a support bearing of a layer of magnetic material, the material and support being distinguishable from another by colour. The pattern is formed by engraving the layer so that the support is visible through the layer.
Patent GB-2056519-A (GB)
Title: Foldable shower cubicle
IPC: A47K3/36
Filed: 1979-08-10
Abstract: A foldable shower cubicle having two wings (4, 5) which are swingable so as to overlie two adjoining, angularly-disposed walls (6, 7) of an enclosure in which the foldable shower is installed and which, in an operative mode, are swingable to a position in which their outer edges juxtapose each other at a substantial right angle so as to, in association with the adjoining, angularly-disposed walls of said enclosure, constitute a said shower cubicle having substantially rectangular configuration; or so as to overlie a wall of an enclosure in which the foldable shower cubicle is to be installed, or so that one said wing overlies the other said wing which in turn overlies the said enclosure wall and which, in an operative mode, are swingable to a position parallel to each other so as to constitute, with said wall, three sides of a said shower cubicle having substantially rectangular configuration. <IMAGE>
Patent GB-2056395-A (GB)
Title: Article packing and unpacking apparatus
IPC: B65B21/18
Filed: 1979-08-22
Abstract: Article packing and/or unpacking apparatus, includes a first driven conveyor 20 for articles and a second driven conveyor 18, for moving cases 16 the conveyor 20 having a horizontal section between descending and rising inclined sections in a vertical plane above the conveyor 18; and article gripper means 22 are positioned by carrier bars 24 rotatably mounted on the article conveyor 20, which gripper means depend from the carrier bars in a lower reach of such article conveyor. A pair of control arms 30, 32 are individually secured to each carrier bar at different ends thereof to engage guide means 48, 50 and 52, 54, respectively as the article conveyor means is moved downwardly towards the horizontal section so that the article gripper means are presented on vertical axes as they are moved into, along with, and lifted from cases moving along case conveyor 18. The apparatus is particularly suitable for lifting bottles from cases and/or depositing them into cases. <IMAGE>