baber/WOPTO huggingface dataset:
Patent GB-1064982-A (GB)
Title: Process for modifying the characteristics of structures containing keratin fibres and product thereof
IPC: D06M15/564
Filed: 1963-09-12
Abstract: Structures containing keratin fibres are shrinkproofed and permanent configurations and mechanical effects, e.g. pleating, crimping and calendering, are set therein by reacting them with a polyfunctional isocyanate compound containing at least two groups which are isocyanate or isothiocyanate groups and a polymeric polyfunctional compound which is a polyester, polyamide, polyepoxide, a reaction product of a phenol and an alkylene oxide, a formaldehyde resin, a hydrogenation product of an olefin-carbon monoxide copolymer or a polyepihalohydrin.  The isocyanate compound and the polymeric polyfunctional compound may be reacted together to an extent below which a gel is produced which is insoluble in a non-reactive organic solvent to form a prepolymer and the prepolymer then applied to the fibres.  The isocyanate compound may be an aryl, alicyclic or alkylene diisocyanate or diisothiocyanate.  The isocyanate compound and the polymeric polyfunctional compound may be applied to the fibres as a solution in a non-reactive organic solvent, e.g. a halogenated hydrocarbon, an aromatic hydrocarbon, n-butyl acetate, ether or phosphate, p-dioxane, ethyl oxalate, methyl isobutyl ketone, pyridine, quinoline, N,N-dimethyl-formamide or acetamide or 2,2,4-trimethyl pentane by padding, immersing, spraying or applicator rolls or as aqueous emulsions or dispersions when the isocyanate groups are blocked by reaction with tertiary alcohols, secondary aromatic amines which contain only one group having a hydrogen atom reactive with an isocyanate group, mercaptans, lactams, imides, monohydric phenols or compounds containing enolizable hydrogen.  The treating solution may also contain a catalyst, a silicone resin and a coreactant containing at least two -OH1-NH2-NRH,-COOH or-SH groups or the coreactant may be applied from a separate solution.  Numerous examples of suitable isocyanates, isothiocyanates, polymeric polyfunctional compounds, catalysts, coreactants and isocyanate group blocking compounds are given.  After impregnation the fibres may be dried and cured by heating to 200 DEG -260 DEG F., aged for 12 - 24 hours, scoured and dyed with premetallized or acid dyes. During impregnation the fibres and solutions are preferably maintained at a pH of 3-9.  Fabrics comprising wool alone or in admixture with synthetic polyamide, polyester, acrylic, cellulose acetate, viscose rayon or cotton fibres may be treated.  Other suitable keratin fibres are mohair, alpaca, cashmere, vicuna, guanaco, camel hair or llama may be treated.  In inserting a desired configuration, e.g. pleat, in a fabric, the fabric may be impregnated, arranged in the configuration and cured. Alternatively the fabric may be impregnated, dried, made into garments, pressed to the desired configuration and cured. Reference is also made to crimped yarns and crimped stretch fabrics.  Crimped yarns may be obtained by knitting yarn, impregnating, curing and unravelling the knitted fabric.
Patent GB-859349-A (GB)
Title: Improvements in or relating to soaking pit furnaces
IPC: C21D9/70
Filed: 1958-11-10
Abstract: 859,349. Soaking pit furnaces. UNITED STATES STEEL CORPORATION. Nov. 10, 1958 [Dec. 4, 1957], No. 36089/58. Classes 51 (1) and 51 (2). A regeneratively heated soaking pit furnace 2 has bottom openings 20 and 22 associated respectively with flues 16 and 18 leading to reversible regenerators 12 and 14, a burner port 32, 34 in each flue supplied with fuel by a three-way valve 38, and blocks of burners 40 and 42 above the flue openings. The burners 32, 34, 40 and 42 may be supplied with a high calorific value gas, e.g. natural or coke oven gas, or with powdered coal or liquid fuel. Initially, the heat may be supplied from burners 32 and 34 alternately, followed by one and then both of the burner blocks 40 and 42. In an alternative construction, Figs. 4 and 5 (not shown), the regenerators are replaced by a single recuperator, and a single block of upper burners is disposed above the flue supplying the heated air.
Patent GB-911732-A (GB)
Title: 21-methyl steroids
IPC: C07J9/00
Filed: 1960-10-21
Abstract: The invention comprises 5a ,21-dibromo-6b -fluoro - 21 - methyl-pregnane-3b ,17a -diol-20-one and the corresponding 3-ketone, and the preparation of the latter by oxidation of the former, which may in turn be prepared by reacting the corresponding 21-unsubstituted steroid with from about 1 to 1.5 molar equivalents of bromine in acetic acid or in a hydrocarbon or halogenated hydrocarbon solvent at about 0 DEG  to 40 DEG C. for about 1 1/2 to 4 hours.  Examples are given and the conversion of the 3-ketone to 6b -fluoro-21-methyl-D 4-pregnene-17a ,21-diol-3 20-dione 21-acetate by reaction with sodium or potassium acetate, the epimerization of this to the corresponding 6a -fluoro-compound, the 11-hydroxylation of this to 6a -fluoro-21-methyl-D 4-pregnene-11b ,17a ,21-triol-3, 20-dione 21-acetate by the use of organisms of the genera Curvularia, Chaetomella, Spondylocladium or Epicoccum, the hydrolysis of this to the 21-ol, the dehydrogenation of the 21-acetate or 21-ol to the corresponding D 1,4-compound, and the conversion of these or the D 4-compounds to the corresponding 6,9-difluoro-compounds via the D 9(11)-compounds, the 9,11-bromohydrins and the 9b ,11b -epoxides also are described.  5a  - Bromo-6b -fluoro-21-methyl-pregnane-3b , 17a -diol-20-one is prepared by reacting 17a -hydroxy-pregnenolone with formaldehyde and dimethylamine to give 21-dimethylamino-methyl-D 5-pregnene-3b ,17a -diol-20-one, reacting this with methylbromide to give the corresponding methobromide, warming this with aqueous alkali to give 21-methylene-D 5-pregnene-3b ,17a -diol-20-one, catalytically reducing this to 21-methyl-D 5-pregnene-3b ,17a -diol-20-one and reacting this with N-bromoacetamide and anhydrous hydrogen fluoride.
Patent GB-1067270-A (GB)
Title: 4-substituted-b-norsteroids
IPC: C07J1/00
Filed: 1965-08-23
Abstract: The invention comprises compounds of formula <FORM:1067270/C2/1> wherein X is chloro, bromo, hydroxy or acetoxy and W is carbonyl, b -(hydroxy or acetoxy)-methylene, b -(hydroxy or acetoxy)-a -(methyl, ethyl or ethynyl)-methylene or b -(acetyl, hydroxyacetyl or acetoxyacetyl)-methylene, and their preparation from 4-unsubstituted B-nor-steroids by (a) treatment with sulphuryl chloride or bromide, any free hydroxy group being protected, to form a 4-halo compound, which may be treated with a strong base to form a 4-hydroxy compound, or (b) reaction with alkaline hydrogen peroxide to form a 4,5-oxido-B-nor-steroid and treating this either with hydrogen chloride or hydrogen bromide to form a 4-halo compound or with aqueous acid to form a 4-hydroxy compound, or for com ounds in which X = acetoxy, by (c) 4-acetylation of a 4-hydroxy compound. The compounds of the invention have anti-androgenic and central nervous system stimulant activity and may be used in pharmaceutical compositions in combination with a carrier.
Patent GB-1510157-A (GB)
Title: Frames for opening or fixed lights
IPC: E06B3/12
Filed: 1976-08-12
Abstract: 1510157 Window frames E & E KAYE Ltd and D B PLUM 12 Aug 1976 [3 Sept 1975] 36297/75 Headings E1J and E1R An elongate member e.g. of extruded aluminium 10 for forming a main frame for a window or door comprises a web 13 with a flange 14 and a second flange 19 which with the wall 22, 23 forms a water channel 21. A further flange 16 contacts the wall 17. Drain holes 23a are provided in the channel 21 of bottom frame member. A glazing bead 25, with a groove 26 engaging the ridge 24, and seals 27, 30 retain the pane 12. Where an opening light 31, 32 is provided (Fig. 3) the flange 14 and wall 22 from contact surfaces for sealing strips held in grooves 34, 36.
Patent GB-1274705-A (GB)
Title: Improvements in or relating to electrophotographic printing or copying
IPC: G03G15/056
Filed: 1969-07-18
Abstract: 1,274,705. Electro-photography. OWENS - ILLINOIS Inc. July 18, 1969 [July 19, 1968], No. 36305/69. Heading G2H. A photo-conductive member 10 having a surface layer which exhibits persistent internal polarization is situated between electrodes 12 and 14 of reversible polarity and is exposed first to uniform radiation and then to imagewise radiation through the electrode 14 which is in the form of a flexible wire mesh which transmits 60-90% of the radiation to which it is exposed and is removable for development of the image. Exposure may be to visible, UV, IR or X-ray radiation.
Patent GB-156098-A (GB)
Title: An improved vibration damping device
IPC: G01G23/08
Filed: 1920-12-29
Abstract: 156,098. Berkel, C. F. M. van. Nov. 21, 1919, [Convention date]. Dash-pots. - A vibration-damper, particularly applicable to weighing - apparatus, comprises a cylinder 1 with an end opening 5, and connected at opposite ends to a regulator provided with an adjustable valve 11 and an air vent 13. The cylinder and the regulator contain liquid which is circulated past the valve 11 by the piston 2 connected to the weighing or other apparatus. The regulator 8 may be situated outside the casing of the weighing or other apparatus, and the cylinder situated inside.
Patent GB-936776-A (GB)
Title: Improvements in or relating to semiconductor relaxation oscillator circuit arrangements
IPC: H03K3/282
Filed: 1961-10-10
Abstract: 936,776. Semi-conductor devices. SIEMENS HALSKE A.G. Oct. 10, 1961 [Oct. 10, 1960], No. 36327/61. Class 37. [Also in Group XL (c)] A relaxation oscillator comprises two semiconductor members connected together, each member including a transistor, a semi-conductor diode operating as a capacitor and a portion of semi-conductor material having high resistance. Fig. 1 shows the circuit of a free-running flipflop with transisors E<SP>1</SP>, B<SP>1</SP>, K<SP>1</SP> and E<SP>11</SP>, B<SP>11</SP>, K<SP>11</SP> and frequency determining circuits R<SP>1</SP> 2 , C<SP>1</SP> and R<SP>11</SP> 2 , C<SP>11</SP>. Fig. 2 shows a semi-conductor body which is used to provide the transistor, capacitor C and resistors R 1  and R 2  of one half of the circuit of Fig. 1. The body consists of silicon with N-type region 1 having P-type layers 4, and 5. The transistor is formed by emitter electrode E which comprises an N-type region on the base layer 5 to which is connected an annular base electrode B. Ohmic contact K constitutes the collector. The PN junction between regions 4 and 1 is used to provide the capacitor C with electrodes C and K. Resistance R 1  is provided by the resistance of the semi-conductor material between electrode K and an additional ohmic electrode F and resistance R 2  by the semi-conductor material between F and a further ohmic electrode A. Fig. 3 shows two such elements each of trapezium shape in which electrodes A and C are connected together in each device, electrodes F are interconnected, the base of each transistor is connected to electrode A of the other element and terminal pins F, G and H are proviced for connections to the emitters and to electrode F. The elements are mounted on a ceramic base and may be assembled in a gastight housing or encapsulated in resin. The electrodes may be provided by pressing discs of gold and antimony against the semi-conductor and alloying or by alloying aluminium to the body. In a modification, a strip of aluminium is placed to connect electrodes C and A and then alloyed so that a thin P-type region exists along the body providing an extension of the PN junction 3. Connections to the electrodes may be made by thermo-compression of gold wire.
Patent GB-1361628-A (GB)
Title: Apparatus for delivering moving air in a vehicle
IPC: B60H1/34
Filed: 1971-08-03
Abstract: 1361628 Ventilating vehicles FORD MOTOR CO Ltd 3 Aug 1971 [8 Sept 1970] 36384/71 Heading F4V An air distribution device for a vehicle comprises an outer fixed cylinder 16 having an air inlet 32 and a set of air outlets 20, 22 and 24 angularly spaced around the cylinder 16, and an inner cylinder 18 which is rotatable within the cylinder 16 and has an inlet 42 and outlets 34, 36, wherein the inlets 32, 42 are aligned whenever outlets of the cylinders 16 and 18 are aligned. Air is supplied to the inlet 32 via a duct 14 by a fan 12. The cylinder 18 is adjustable by a projection 44. The cylinder 18 may be moved to a position in which all inlets and outlets of the cylinders are closed. As shown, further air outlets 26, 28, 30 are provided at the opposite end of the cylinder 16 from outlets 20, 22, 24. The ends of cylinder 16 are closed by members 50, 52.
Patent GB-344479-A (GB)
Title: Improvements in or relating to the manufacture of ketones
IPC: C07C45/00
Filed: 1929-11-28
Abstract: Catalysts for the production of ketones by subjecting the vapours of primary aliphatic alcohols in admixture with water vapour to temperatures of 200-700 DEG  C. comprise mixtures of metallic zinc, zinc acetate, zinc oxide and zinc carbonate with one another, or mixtures of one or more of these substances with one or more oxides, hydroxides or salts (e.g. carbonates, borates, silicates) of earth alkali metals such as calcium, barium and magnesium.  The catalysts may be supported on non-metallic filling or contact materials, such as pumice or kieselguhr.  The apparatus may comprise a tube or other form of apparatus of copper, iron, staybrite or earthenware.  In an example a catalyst of zinc acetate or of zinc oxide and calcium silicate in a copper tube is employed for the production of acetone from ethyl alcohol at 475-485 DEG  C.ALSO:Aliphatic ketones are manufactured by subjecting vapours of primary aliphatic alcohols containing at least two atoms of carbon in the molecule, in admixture with water vapour to high or relatively high temperatures, particularly temperatures of 200-700 DEG  C., in the presence of a catalyst consisting of zinc or a salt or compound thereof, or a mixture of such substances. Advantageously the catalyst may also contain alkali or alkaline-earth oxides, hydroxides or salts, and may be supported on non-metallic filling or contact agents.  Catalysts mentioned are metallic zinc, zinc acetate, zinc oxide or zinc carbonate and mixtures with one another or with oxides, hydroxides, carbonates, borates and silicates of calcium, barium and magnesium. The apparatus may be made of copper, iron, staybrite, or earthenware. The vapours may be mixed with oxygen or a gas containing oxygen or with an indifferent gas, and the reaction may be carried out under atmospheric, reduced or elevated pressures.  In an example, a mixture of ethyl alcohol vapour, steam and oxygen is passed over a catalyst consisting of zinc acetate, or of zinc oxide and calcium silicate, at 475-485 DEG  C., producing acetone, which may be purified by fractional distillation.  The preparation of diethylketone, from propyl alcohol is referred to.
Patent GB-443309-A (GB)
Title: Improvements in electric cooking ranges
IPC: F24C7/00
Filed: 1934-12-20
Abstract: 443,309. Electric cooking - stoves. WILKINSON, G., 23, Otley Road, Harrogate. Dec. 20, 1934, No. 36480. [Class 39 (iii)] An electric cooker consists of the combination of a heat storage block a for rapid heating to boiling temperatures with low-rated hot-plates for continuing the cooking process. A grill toaster c is located on the underside or upon one side of the block a, the heating effect of the block reinforcing that of the toaster which is also protected by the block from cooling by the impingement of cold air upon its heating elements. The hot-plates are wound in portions of unequal wattage and controlled by switches to give different grades of heat. An oven h<1> and hot cupboard i<1> are included in the cooker structure. A board j carries switches controlling the heating elements of the hot-plates toaster, oven, and hot cupboard.
Patent GB-326481-A (GB)
Title: Improvements in the treatment of gutta percha, balata and the like thermoplastic natural and artificial products and the manufacture of moulded articles therefrom
IPC: C08C4/00
Filed: 1928-12-12
Abstract: 326,481. Smith, W. S., Garnett, H. J., and Deam, J. N. Dec. 12, 1928. Insulating coverings for cables. - Cables &c, coated with gutta-percha or allied gums are subjected to a heat treatment to stabilize the electrical constants, and to reduce softening, with rise of temperature. Gutta - percha which normally softens in accordance with curve a is heated to a temperature below the limits shown by the curves (in the example shown, about 55‹ C.) until its softening curve approximates to b. By raising the temperature gradually, deformation of the insulation is prevented. In an example, the temperature rises to 50‹ C. in 14 hours, and remains thereat for 5 hours. Alternate heating and chilling accelerates the process. Material thus heated is denser, is less affected by water and vapours such as tar, and is less liable to " sweat." If heated above the limiting temperature, the material reverts to its original state. The heating may be accomplished by passing a current through the conductor, or by leading the cable through a series of compartments in line containing alternately cooling and heating media, or by reeling the cable on a hollow perforated drum in a tank. and passing heating medium into the interior of the drum. Specifications 307,390 ; and 322,208, [Class 70, Indiarubber &c.], are referred to.
Patent GB-427662-A (GB)
Title: Improvements relating to roller shutters
IPC: A62C2/16
Filed: 1933-12-30
Abstract: 427,662. Fire - preventing shutters. MATHER & PLATT, Ltd., and INCLEDON, C. S. L., Park Works, Newton Heath, Manchester. Dec. 30, 1933, No. 36737. [Class 47 (ii)] Means for closing roller shutters automatically in case of fire, whilst permitting normal opening and closing both before and after such automatic closing, comprises a drum f operatively connected with the shutter shaft, and a rope g which normally is wound loosely about the drum and is connected at its free end to a weight i. The other end of the rope is anchored to a drum h which is free to turn on its shaft under the pull of the rope and is braked by a spring- pressed plate k. The weight is supported by arms m, p retained by a cable q embodying a thermal release, such as a fuse. As shown, the drum f is keyed to a winding shaft c geared to twin shutter shafts a, b. Normally, the looseness of the rope g on the drum f allows the shutters to be raised or lowered. In case of fire, the weight i is released, and first tightens the rope on the drum, and then rotates the latter to close the shutters. After it has fallen some distance, the weight is arrested by a stop w causing the rope to be slackened on the drum f due to the over-run of the drums f and h. Stops t, u limit the rewinding of the rope on the drum h when the mechanism is reset. In a modification, the drum f is applied directly to the shutter shaft a, and the weight i is in two parts, only one of which is arrested by the stop. Further, the end of the rope g may be connected to a light weight, instead of to the drum h. According to the Provisional Specification, the rope may be automatically detached from the anchor drum when the rope is fully paid out.
Patent GB-821099-A (GB)
Title: 6-halogen-3-hydroxy-benzoic acid -Ï-halogen-alkyl esters and process for their manufacture
IPC: C07C69/88
Filed: 1955-12-22
Abstract: The invention comprises esters of the general formula <FORM:0821099/IV (a)/1> wherein Hal, which may be the same or different, is chlorine, bromine or iodine and n is 2 to 5, and their preparation by esterification of the free acid with the alcohol HO-(CH2)n-Hal, advantageously in the presence of acid catalysts such as halogen hydracids or concentrated sulphuric acid.  The products are useful as antimycotic agents.  Examples describe the preparation of the 21-chlorethyl, 31-chlorpropyl and 41-chlorbutyl esters of 6-chloro-3-hydroxybenzoic acid and of the 21-chlorethyl and 41-chlorbutyl esters of 6-bromo-3-hydroxy-benzoic acid. Reference is also made to the use of 5-chloro-pentanol and to the use of the bromine and iodine analogues of the chloro-alcohols used, in the process of the invention.
Patent GB-805362-A (GB)
Title: Non-solid erasable writing media
IPC: B43K7/00
Filed: 1954-12-21
Abstract: An erasable writing medium suitable for use in a ball point pen consists essentially of a nondrying hydrocarbon oil, as tackifier poly-isobutylene in solution in the oil and pigment particles dispersed in the solution, the size of the particles being not greater than 7 microns and not small enough to penetrate into the pores of conventional writing paper when the medium is applied thereto by a ball point instrument.  Preferably the tackifier constitutes from 16 to 32 per cent by volume and the pigment from 10 to 25 per cent by weight of the medium.  In making the writing medium the tackifier may be dissolved in a volatile solvent and a light oil, the solution heated to drive off the volatile solvent and the resulting solution mixed with a previously prepared dispersion of the pigment particles in the hydrocarbon oil. Pigments specified are carbon, graphite, barium, lithol and "Monastral Blue" (Registered Trade Mark).  A wetting agent such as an unsaturated fatty acid or salt thereof, e.g. oleic acid, may also be added in amount, e.g. of 1/2 to 1 per cent by volume of the medium.
Patent GB-635904-A (GB)
Title: An improved process for the treatment of gold- and silver-bearing ores, residues and other products
IPC: C22B1/08
Filed: 1946-12-18
Abstract: Gold ores, residues, &c. which may also contain silver are admixed with a relatively large amount of a soluble chloride, say 10-14 per cent common salt, a carbonaceous material, say 4 per cent sawdust, and a source of sulphur, which may already be present as sulphide ore, and the mixture roasted, e.g. at 800 DEG  C. to render the gold amenable to cyanide extraction.  The salt is added as a brine solution, which preferably contains alkali and cyanide, whereby any gold soluble in cyanide is extracted prior to roasting.  The salt present in the roasted material is recovered by leaching with water or dilute brine, which preferably also contains cyanide and alkali so as to extract gold simultaneously. After precipitation of the gold, the solution is used for treating fresh ores, residues &c., together with solid salt to make up losses.  Due to the build-up of sodium sulphate in the brine, the amount of sulphide sulphur added to or present in the roaster charge may be decreased with time.  After roasting, the material should be cooled quickly to 500 DEG  C. to avoid volatilization losses.  Specification 635,905 is referred to.
Patent GB-1311062-A (GB)
Title: Plugs for closing the mouths of microbeculturing and animal- rearing vessels
IPC: C12M1/00
Filed: 1970-08-03
Abstract: 1311062 Stoppers &c SHINETSU CHEMICAL CO 3 Aug 1970 [4 Aug 1969] 37338/70 Heading B8T [Also in Divisions C3 and C6] A silicone rubber plug has an open-cell cellular structure and is covered by a surface skin except in two opposite sides which when the plug is inserted into the mouth of a vessel for microbe-culturing or animal-rearing face inwardly and outwardly with respect to the interior of the vessel. Figs. 1-4 illustrate plugs having surface skin, 1, cellular material, 2, and cut surfaces at 3. The silicone rubber plug may be made by (a) mixing a silicone gum with a blowing agent, (b) blowing the resulting mixture in a mould, and (c) cutting the resulting moulded form to remove at least some of its surface skin from two opposite sides.