baber/WOPTO huggingface dataset:
Patent GB-1517366-A (GB)
Title: Manufacture of aqueous solutions of formaldehyde and urea
IPC: C08G12/00
Filed: 1975-10-23
Abstract: 1517366 Dissolving formaldehyde in aqueous urea solution BASF AG 23 Oct 1975 [2 Nov 1974] 43570/75 Heading C3R [Also in Division C2] Formaldehyde is prepared and dissolved in urea-formaldehyde solution by oxidatively dehydrogenating methanol with air in the presence of a silver catalyst at elevated temperature and passing the product gases successively through (1) an aqueous solution of urea and formaldehyde in 1 : 2À3-5 molar ratio at pH 5-7; (2) an aqueous solution containing 25-32 wt. per cent free urea, 4-10 wt. per cent of free formaldehyde and 15-25 wt. per cent methylolureas at pH 7-8; and (3) an aqueous solution (initially of urea alone) of urea and formaldehyde in 1 : 0À05-0À4 molar ratio at pH 8-9, air supplied to the dehydrogenation being passed through the solution, or part of it, from the first stage. In a preferred embodiment, illustrated, aqueous urea solution is introduced at the head of the 3rd-stage absorber 17; part of the bottoms product in this is recycled and the rest is mixed with part of the bottoms product from the 1st-stage absorber and fed to the head of the 2nd-stage absorber 35, which may form the lower half of the column containing the 3rdstage absorber; part of the 2nd-stage bottoms is recycled and the rest passed to the head of the 1st-stage absorber 10; part of the bottoms product from this is recycled, part passed via a heat-exchanger 28 to the wash column 2, part returned to the 3rd-stage absorber and the remainder removed as product; the wash column effluent is partly recycled and partly added to the product solution removed from the 1st-stage absorber. Air passes countercurrent up the wash column 2, is mixed with methanol and water from the vaporizer 5, and fed to reactor 8; the product gases are cooled in heat exchanger 28, pass co-current down the first absorber 10 and countercurrent up the 2nd and 3rd absorbers 35 and 17; methanol is condensed from the effluent in condenser 25, separated in separator 26 and returned to vaporizer 5.
Patent GB-926800-A (GB)
Title: Dust separator
Inventor: HAITLAND JOHN GIBB
IPC: B04C5/24
Filed: 1960-12-21
Abstract: 926,800. Centrifugal separators. WEST OF SCOTLAND METALLIC WORKS Ltd. March 20, 1962 [Dec. 21, 1960], No. 44002/60. Class 23. Dust-laden gas enters a cyclone separator 10 through an inlet 14 intermediate upper and lower discharge outlets for the gas and dust, respectively, and, after separation of the heavier dust particles, passes with the lighter particles through a multi-cell separator 17 sealingly mounted within the separator 10 and providing the only communication for the upflow of gas between the cyclone dust and gas discharge outlets, the finer dust particles being discharged from the separator 17 through an outlet 19b communicating with the exterior of the cyclone. The inlet 14 may be set at a variable angle. The dust outlet of the separator 17 may extend into that of the cyclone 10 to which is fitted a common discharge valve 20. Alternatively, the separators leave separate discharge outlets which may or may not be provided with valves. To remove the last traces of dust in the discharge gas there may be fitted in the outlet 22 of the cyclone a filter comprising a rotatable hollow sphere made of wire mesh and having internally disposed fine water sprays which are directed on to a mass of charcoal through which the gas passes. The internal wall surface of the cyclone wall may be lined with a wear-resistant layer of cement, rubber or polyvinyl chloride.
Patent GB-1470963-A (GB)
Title: Extinguisher mountings
IPC: A62C13/78
Filed: 1974-04-11
Abstract: 1470963 Fire extinguisher mountings V E SENTINELLA 11 April 1974 [12 April 1973 18 Oct 1973] 44433/76 and 44434/76 Divided out of 1470962 Heading A4B A mounting for a fire extinguisher 8 comprises an upright spine 2, a base-plate 3 projecting forwardly from the spine, a pair of levers 4 pivotally mounted on the base-plate 3 and carrying a pressure plate 7, a first pair of links 5 pivotally connected at one end to the spine 2 and at the opposite end to a first end of a second pair of links 6 integral with an operating handle 10, the second of the second pair of links 6 being pivotally connected to the levers 4, the first and second pairs of links 5, 6 defining an over-centre linkage movable through a dead-centre position between a first position in which the pressure plate 7 is horizontally spaced from the spine 2 and a second position in which the plate 7 is less horizontally spaced therefrom, the first position defining an unlocked position and the second position defining a locked position in which the plate 7 presses against the front of the extinguisher to force the rear of the extinguisher against an abutment 9. A foot pedal 11 is attached to the operating handle 10.
Patent GB-983023-A (GB)
Title: Production of composite metal wire
Inventor: PRICE EDWARD GEORGE
IPC: B22F7/06
Filed: 1962-11-26
Abstract: A method of producing iridium coated tungsten or molybdenum wire, e.g. for use in grids of electron discharge tubes, comprises inserting into a tube of sintered iridium powder having a V.P.N. of from 220-310 a core of tungsten or molybdenum having a V.P.N. of 480/540 or 330/400 respectively and swaging the filled tube to rod and drawing the rod to wire.  In a first example iridium powder having a surface area of 0.3 m.2/gm. is compacted about a 0.25 inch diameter polished mild steel former under hydrostatic pressure of 15 tons/inch2. The former is flange at one end and the powder is supported by a latex sheath.  The compact 4 inches long and having 0.25 inch and 0.375 inch inside and outside diameters respectively is sintered in vacuum at 1500  DEG C. to give a density of 18 gms./cm.3. A sintered tungsten rod of a density of 15-16 gms./cm.3 is ground to produce a sliding fit and inserted into the compact, the assembly being subsequently swaged at 1500  DEG C. to 0.125 inch diameter rod, hot drawn at 750-650  DEG C. to 0.10 inch diameter wire, drawn at 600 DEG C. to 0.02 inch diameter and finally at 550-500  DEG C. to 0.01 inch diameter wire.  The drawing rate initially is from 1-2 ft./min. to about 12 ft./min. at a diameter of 0.02 inch.  The thickness of the iridium sheath is usually 0.001-0.002 inch but may be 0.0005 inch and the hardness of the iridium and tungsten 582 V.P.N. and 803 V.P.N. respectively.  Plugs of iridium may be used to plug the tube if the heating is carried out under oxidizing conditions.  In a second example a rod of swaged and drawn molybdenum containing 0.5% titanium and having a hardness of 375 V.P.N. is inserted in the tube, the ends plugged with iridium and the assembly hot-swaged and hot-drawn to a final diameter of 0.012 inch and a core diameter of 0.005 inch.  The iridium and molybdenum hardness values were 698 V.P.N. and 386 V.P.N. respectively.  The tensile strengths of the tube and core are preferably between 5000/12,000 p.s.i. and the density of the iridium, tungsten and molybdenum 16 to 20; 14 to 17 and 10.2 gms./cm.3 respectively.  It is stated that no fusing bond exists between the metal core and the iridium sheath which can be easily peeled therefrom.
Patent GB-949735-A (GB)
Title: Coaxial cable connector
IPC: H01R9/05
Filed: 1961-12-15
Abstract: 949,735. Couplings. BURNDY CORPORATION. Dec. 15, 1961 [Dec. 19, 1960], No. 45016/61. Heading H2E. A connector for mounting cables comprises two coaxial flanged metal tubes, one inside the other, the outer tube being made of a metal more malleable than the other. The invention is described with reference to routing a coaxial cable on a panel 2. The cable is first stripped of the outer insulation 6, exposing the outer conductor 3 which is terminated at a farther point, exposing the inner insulation 7 which encloses the inner conductor 4. An outer malleable flanged tube 11 is slipped over the cable to cover the exposed part of the outer conductor 3 and the cut end of the insulation 6. A resilient gasket 10 is threaded over the insulated inner conductor which is then led through a hole 5 in a conducting panel 2. The inner tube 8 is slipped over the inner insulation 7 from the other side of the panel through hole 5, through the gasket 10 and under the outer conductor until the flanges 12 and 9 of the tubular members sandwich the panel 2 and the gasket 10. This clamps outer conductor 3 to inner tube 8 and at the same time the outer flanged tube grips conductor 3 and extends lengthwise to compress gasket 10.
Patent GB-1515900-A (GB)
Title: Bituminous compositions
IPC: C08L25/12
Filed: 1975-10-31
Abstract: 1515900 Bituminous composition BRITISH PETROLEUM CO Ltd 20 Sept 1976 [31 Oct 1975] 45217/75 Heading C3N A bituminous composition comprises 45- 94% by weight of bitumen defined as the residue from the vacuum distillation of crude oil or the product obtained by air blowing such a vacuum residue, 5-40% by weight of hardened extract defined as the material produced by blowing a petroleum extract with an oxygen-containing gas, e.g. air, at 250-350‹ C. optionally in the presence of a catalyst, e.g. a Friedal-Crafts metal halide such as FeCl3, and 1-10% by weight of a polymer selected from styrene-acrylonitrile copolymer, polyvinyl chloride and chlorinated polyethylene, and 0-5% by weight of a plasticizer for the polymer.
Patent GB-1522995-A (GB)
Title: Moulding compound
IPC: C08K3/00
Filed: 1975-10-31
Abstract: 1522995 Cementitious moulding composition OWENS-CORNING FIBERGLAS CORP 31 Oct 1975 [18 Nov 1974 (2) 2 Jan 1975 12 March 1975] 45343/75 Heading C1H [Also in Division C3] A moulding composition comprises glass fibres and: (A) a mixture of (1) a thermosetting resin of the phenolic and/or aminoplast type and (2) hydraulic cement; or (B) a condensate resin formed from hydraulic cement and formaldehyde and # 1 of phenol, a polyamine, and resorcinol. The weight of cement is 1-20 parts per part of the water, both that initially present and any formed during curing.
Patent GB-1161768-A (GB)
Title: Improvements in or relating to Heat Exchangers
IPC: F28F9/22
Filed: 1966-10-11
Abstract: 1,161,768. Tubular heat exchangers. GOTAVERKEN A.B. 11 Oct., 1966 [20 Oct., 1965], No. 45376/66. Heading F4S. In a heat exchanger enclosed within a jacket 1, finned tubes 13, through which flow a cooling medium such as sea water, extend between two collecting chambers and are divided into groups by radial baffle plates 14 which guide a medium to be cooled, e.g. engine oil, transversely in a sinuous path over the tube groups, the flow entering and leaving the heat exchanger through connections 15, 16 respectively. Alternate plates 14a extend from the jacket 1 and intervening plates 14b extend from the centre of the exchanger. Walls 17, 18 and 24 subdivide the collecting chambers to provide a four-pass flow of the medium to be cooled through the tubes. When it is desired to reduce the cooling capacity of the exchanger, a number of tubes on both sides of baffle plates 14 within a sector 31 are removed and the zones formerly occupied by the tubes are fitted with cover-plates of suitable shape. The cross-section of exchanger jacket 1 may be circular (as shown), rectangular or polygonal.
Patent GB-1286155-A (GB)
Title: Conveyors
Inventor: CARMICHAEL ALAN
IPC: B65G17/08
Filed: 1969-09-15
Abstract: 1286155 Conveyers EFCO Ltd 14 Sept 1970 [15 Sept 1969] 45448/69 Heading B8A A panel unit for use in an endless conveyer comprises a perforated rectangular portion 12 provided with hinge lugs 17-24 and recesses 35 for accommodating rollers 34. Fig. 3 shows how an endless member is formed of portions 12 hinged together and supported on the rollers 34 which engage a sprocket assembly 36 and a support rail 46. The portions 12 are of moulded synthetic resin and have perforations which may receive clips for holding articles, or upstanding rods for locating upturned bottles. To increase the width of the load-carrying surface two or more of the portions 12 may be arranged end to end, projections 26 and recesses 28 ensuring their alignment. Tie rods 32 pass through the rollers 34 and the hinge lugs. Metal links 50 also engaging the rods 32 may be used to strengthen the assembly. The sprocket assembly 36 is made up of a plurality of identical blocks 38 which interengage by means of crossed ribs 39 and crossed recesses 40. Tie bars 41 and a flange 43A of the drive for the sprocket hold the blocks 38 together. Sprockets may be provided along the length of the conveyer and they may be driven. By laying the portions 12 flat and the rollers 34 uppermost a roller conveyer is provided, Fig. 6. A number of unconnected portions secured to a base may bridge a curved section between the endless conveyer constructions.
Patent GB-959794-A (GB)
Title: Improvements in or relating to steroids
IPC: C07J31/00
Filed: 1960-12-15
Abstract: The invention comprises a compound having the general formula: <FORM:0959794/C2/1> wherein R3 is hydrogen, the acyl radical of a hydrocarbon carboxylic acid containing from 1-12 carbon atoms inclusive, -OSO2R2 wherein R2 is a alkyl or aryl radical, X3 is the methylene radical, the carbonyl radical or the hydroxymethylene radical and the 1, 2-carbon linkage represents a single or double bond linkage, therapeutic compositions thereof and processes for the preparation thereof wherein X3 represents the methylene radical and the 1, 2 carbon atom linkage represents a single bond linkage, which comprises esterifying 3b -hydroxy -16a - fluoromethyl -5- pregnen -20- one, reacting the resulting 3b ,20-dihydroxy -16a - fluoromethyl-5, 17 (20)-pregnadiene-3, 20-diacylate having the general formula: <FORM:0959794/C2/2> wherein Ac is the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms inclusive, with a peracid to form a compound of the general formula: <FORM:0959794/C2/3> wherein Ac is as defined above hydrolysing after separating off the 5b , 6b -epoxide compound which is also produced, then opening the epoxide ring of the 3b , 17a  dihydroxy-5a , 6a -epoxy-16a -fluoromethyl-pregnan -20- one or the 3-acylate thereof to produce 3b , 5a , 17a -trihydroxy-6b -fluoro-16a -fluoromethyl-pregnan-20-one and the 3-acylate respectively, hydrolysing the latter compound if necessary to produce the free 3b -hydroxy compound, brominating to produce 3b , 5a , 17a -trihydroxy -6b - fluoro-16a -fluoromethyl -21- bromopregnan -20- one, reacting this compound with an alkali metal lower hydrocarbon acylate to give a compound having the general formula: <FORM:0959794/C2/4> wherein Ac is as above defined, subjecting the latter to oxidation to give the corresponding 3-keto derivative and then reacting this compound with an acid to give a 6a -fluoro-16a -fluoromethyl-17a , 21-dihydroxy -4- pregnene-3, 20-dione 21-acylate and then if desired hydrolysing to produce the corresponding free 21-hydroxy compound.  Epoxidation may be effected with a peracid, epoxide opening with anhydrous hydrogen fluoride, bromination with bromine in chloroform, and oxidation with sodium dichromate. 11-Hydroxylation may be effected with the microorganisms Cunninghamella blakesleeana, Curvularia lunata or Trichothecium roseum.  A 1, 2-double bond may be introduced by means of Septomyxa or selenium dioxide.  The 21-sulphonate is obtained by treating the 21-hydroxy compound with an alkyl or aryl sulphonyl chloride.  Said therapeutic compositions having anti-inflammatory, progestational and anti-anabolic activities are administered orally, parenterally, or topically as tablets, powder, capsules, pills, solutions, emulsions, suspensions, syrups, elixirs, ointments, lotions, jellies, creams, or aqueous suspensions. Specification 724,094 and 829,903 also are referred to.
Patent GB-1013126-A (GB)
Title: Apparatus for polishing sheet material
Inventor: HESS CHARLES ANTHONY
IPC: B24B7/24
Filed: 1964-11-07
Abstract: 1,013,126. Grinding. LIBBEY-OWENSFORD GLASS CO. Nov. 7, 1964, No. 45472/64. Heading B3D. Apparatus for polishing sheet material, such as glass and the like, comprises a polishing runner having a rigid, generally flat portion 20, Fig. 2, defining a working face thereof, a polishing pad 23 secured about the periphery of the runner and substantially completely covering the working face portion, and a plurality of resilient inserts 27 disposed between the rigid flat portion and the polishing pad in spaced relation to one another, the inserts being positioned adjacent the perimeter of the flat portion and dimensioned radially inward thereof so as to leave the centrally disposed area of the polishing pad spaced from the flat portion and free of resilient backing. The flat portion 20 is formed with an upstanding circular wall 24 and three bearing wells 21 for receiving the shafts of a spider type drive mechanism. The polishing pad is of felt and of square outline, the length of each side being substantially equal to the diameter of the runner. The pad is secured to the wall 24 so as to cover the working face by a metallic retaining ring 25 with the resilient inserts 27 between the pad and working face. The inserts are of resilient soft material, such as polyurethane foam or sponge rubber, and may be between 0À3 inch and 0À76 inch thick and have a rebound hardness of approximately 5 Shore durometer. The inserts may be of triangular or square shape. A number of runners 15, Fig. 1, may be used at a polishing station 10 for working on glass sheets 11 bedded in a layer of plaster of Paris, the runners at the station being arranged in pairs which are rotated in the directions of the arrows 16.
Patent GB-1527625-A (GB)
Title: Aromatic polyamide fibre reinforcement of rubber
IPC: B29C55/00
Filed: 1975-11-26
Abstract: 1527625 Reinforced rubber compositions UNIROYAL Inc 26 Nov 1975 [4 Dec 1974] 45762/75 Headings C3K and C3Q  A reinforced rubber composition comprises (a) 1 - aza - 3,7 - dioxabicyclo(3.3.0)octane or a derivative thereof; (b) resorcinol or its mono- or diacetate, m-aminophenol, m-phenylenediamine, 1,5 - naphthalenediol or a resorcinol - formaldehyde resin and (c) grey discontinuous grey synthetic aromatic polyamide fibres of length up to 5 inches which is added prior to vulcanization of the composition. In the examples masterbatches of natural rubber alone or in admixture with cispolybutadiene and SBR, silica or carbon and vulcanizing agents are compounded with 1-aza-5-methyl, methylol or acetoxy - 3,7 - dioxabicyclo(3.3.0)octane; resorcinol monacetate, resorcinol or a resorcinolformaldehyde resin and said fibres.
Patent GB-1291757-A (GB)
Title: PROCESS FOR THE PRODUCTION OF 9-(beta-D-ARABINOFURANOSYL) ADENINE, 5'-PHOSPHATE AND SALTS THEREOF
IPC: C07H19/20
Filed: 1970-09-25
Abstract: 1291757 9 - (Beta - D - arabinofuranosyl) adenine-5<SP>1</SP>-phosphate PARKE DAVIS & CO 25 Sept 1970 [26 Sept 1969] 45906/70 Heading C2P 9 - (Beta - D - arabinofuranosyl) adenine - 5<SP>1</SP>- phosphate or a salt thereof is prepared by reacting (a) 9-(beta-D-arabinofuranosyl) adenine with (b) phosphorus oxychloride in glacial acetic acid in the presence of (c) a tertiary amine base at 0 to 25 C., the molar ratio of (a) : (b) : (c) being 1 : 4 to 8 : 2 to 10, respectively, and isolating the product of the reaction either in the free acid form or in salt form by appropriate adjustment of the pH with a suitable base. The tertiary amine is preferably pyridine. Reference has been directed by the Comptroller to Specification 1,151,948.
Patent GB-1090958-A (GB)
Title: Pourable,curable elastomer-forming composition
IPC: C08L83/04
Filed: 1966-10-14
Abstract: A composition convertible to a rubber upon addition of a Pt catalyst, comprises by weight: (1) 100 parts of a liquid siloxane of the formula <FORM:1090958/C3/1> wherein each R and R1 is a monovalent hydrocarbon (h.c.) radical free of aliphatic unsaturation, with at least 50% of the R1 radicals being methyl, and n is such that the viscosity of the polymer is from 50,000 to 750,000 cks. at 25 DEG C., (2) 20 to 50 parts of a siloxane copolymer comprising R113SiO0- 5, R112 SiO and SiO2 units, where R11 is a vinyl or h.c. radical free of aliphatic unsaturation, from 2.5 to 10% of the Si atoms contain Si-bonded vinyl radicals, and the ratio of R113SiO0.5 units to SiO2 units is between 0.5:1 and 1:1, (3) 0 to 200 parts of a finely divided non-reinforcing inorganic filler, and (4) an amount of a liquid siloxane of the formula <FORM:1090958/C3/2> sufficient to provide from 0.5 to 1.0 Si-bonded H atoms per Si-bonded vinyl radical in the composition, where a has a value from 1.00 to 2.10, b has a value from 0.1 to 1.0 and a+b is from 2.00 to 2.67, there being at least 2 Si-bonded H atoms per molecule.  Fillers specified are ground quartz, calcium silicate, TiO2, Fe2O3, Cr2O3 CdS, CaCO3, C black, glass fibres, lithopone and talc.  Catalysts specified are Pt, H2PtCl6, Pt-h.c. complexes and Pt-alcoholates.  The compositions cure at temperatures varying from room temperature to 100 DEG  C.  The compositions can be made by mixing all the ingredients together, or by mixing together the contents of two packages, one containing siloxanes (1) and (2), the Pt catalyst and filler, and the other containing siloxane (4) with or without a portion of siloxane (1) and, if used, a portion of the filler.  Uses: for molding; and making glass laminates.
Patent GB-1325700-A (GB)
Title: Apparatus for providing controlled light exposure of plates of sensitized materials and the like
IPC: G03B27/04
Filed: 1970-09-29
Abstract: 1325700 Photographic printer NUARC CO 29 Sept 1970 [2 Oct 1969] 46299/70 Heading G2A A photographic printer comprises a cabinet 12 containing a light source 16, 17 and provided with a track 14 which extends horizontally through the cabinet and projects out from opposing side walls, and a pair of printing frames 30, 31 slidably mounted on the track, each frame being movable between a common exposure position and a loading position outside the cabinet. As shown, the frames are of the two-sided vacuum type with translucent covers 33, 35 and an intermediate vacuum blanket 34 and are connected to pumps (38), (39); they are manually pushed into the exposure position, exposed on one or both sides, and automatically ejected from the exposure position when exposure is completed. The electronic circuitry is designed to automatically delay for a short time the operation of cooling fans 25, 26, 28 and the lamps, and to keep the lamps warm when not in use.
Patent GB-968228-A (GB)
Title: Improvements in and relating to electricity generating plant
IPC: G05F1/67
Filed: 1961-12-28
Abstract: 968,228. Automatic control systems. BROWN, BOVERI & CO. Ltd. Dec. 28, 1961 [Dec. 30, 1960], No. 46420/61. Headings G3R and G3X. Electricity generating plant comprising a generator driven by a prime mover the speed of which is subject to variation due to fluctuation in the energy supplied thereto is provided with means to control the excitation # of the generator in accordance with the speed of rotation n of the prime mover such that approximately # = #n. Thus the effects of transient variations -in generated power are compensated for. Fig. 1 shows a variable resistor 3b in series with the field winding 2b of a D.C. generator 2, the movable arm of the variable resistor 3b being controlled from the driving shaft of a turbine 1 by way of a Ferraris disc 3a. In figure 2 there is shown an alternator having a permanent magnetic field 20b and a capacitor 7 connected across the stator winding 20a, the capacitor current being effective to vary the resultant excitation of the alternator. The embodiment shown in Fig. 3 is similar to that of Fig. 2 but is further provided with a servo mechanism 16 operating upon a tapped transformer 25 to maintain a constant voltage across a main load 41, the transient generated power being absorbed by an auxiliary load 40. In other embodiments the generator or alternator outputs may be connected to motor-generator sets connected into a supply grid, either with a number of generators or alternators connected to operate in parallel into one motor-alternator set or with each generator or alternator operating individual motors all driving a single generator connected to a supply grid.