baber/WOPTO huggingface dataset:
Patent GB-1094256-A (GB)
Title: Improvements in or relating to the removal of oxides of nitrogen from gases containing them
IPC: B01D53/86
Filed: 1965-03-30
Abstract: <PICT:1094256/C1/1> The nitrogen oxide content of a mixture of gases comprising NO, NO2, oxygen and inert gases, e.g. the tail gases from nitric acid manufacture, are rendered innocuous and presumably converted to nitrogen by passing the mixture of gases together with a gaseous reducing fuel at a temperature which is above the ignition temperature of the gaseous mixture through a plurality of gas flow channels extending in the direction of gas flow through a supported catalyst comprising an inert rigid porous refractory honeycomb structure, the surface of the channels and of superficial macropores of said honeycomb structure which communicate with the channels having thereon a refractory metal oxide impregnated with a platinum group metal, the macropores being predominantly of a size in excess of 2000, preferably 20,000 Angstrom units.  The platinum group metals specified are platinum, palladium, and rhodium, and the porous refractory support material is specified as zircon-mullite, the activated oxide being alumina. The reducing fuels specified are a normally gaseous hydrocarbon, e.g. methane or natural gas, or hydrogen, or carbon monoxide, said gas being supplied in at least the stoichiometric amount required to react with all the nitrogen oxides and oxygen present and the mixture of gases is contacted with the catalyst at a space velocity of between 100,000 and 1,000,000 standard volumes of gas per volume of catalyst per hour.  A reactor used in the process comprises a cylindrical housing 5, gas inlet 6 and outlet 7, a plurality of superposed catalyst blocks 8 which have the necessary channels extending in the direction of gas flow and consist of a catalyst supported on an inert rigid porous refractory honeycomb structure as specified above.  The blocks 8 extend over the whole cross-sectional area of the housing 5, and are preferably arranged in superposed horizontal layers as shown, the blocks of each layer being arranged in straight rows within the layer, and also in straight vertical rows each having an axis normal or substantially normal to the first-mentioned rows.  The outer shell 11 of the housing 5 is preferably corrugated to provide thermal and mechanical strength, and the outer blocks 8 are similarly corrugated to provide a snug fit and to ensure that they are rigidly held; axial movement of the block assembly is prevented by screens 15 and 19, which are firmly bolted to bands 16, the whole assembly resting on support-plate 23.  Preferably the first layer of catalyst blocks in the direction of gas flow have at least 12 gas flow channels per linear inch and the subsequent blocks have at least 10 gas flow channels per linear inch.
Patent GB-167325-A (GB)
Title: Improvements in or relating to galvanizing plant
IPC: B65G49/04
Filed: 1920-05-18
Abstract: 167,325. Harris, E. J. May 18, 1920. Galvanizing. - In a galvanizing-plant provided with mechanical means for carrying the plate through the whole process after it leaves the water bosh, the plate is removed from the bosh and fed through rolls g into a drying-apparatus in the form of a trolly a run into position over an open fire on a grate r. The ends of the trolly are open and the bottom is perforated and is also provided with guides which conduct the plate to the exit rolls g, from which it passes between guides u into the flux-box 2, and is passed through the galvanizing-bath by the usual rolls, being delivered from the exit rolls 6 on to conveyers 9 which carry it to a water bath from the exit rolls 24 of which it passes through guides 25 and rolls 26 into a drying-stove 27. Conveyers 20 arranged over the end of the conveyers 9 counteract any tendency of the sheet to curl at the end, and ensure its passage between the entrance rolls 19 of the water bath. The conveyers 9 are carried at one end by sprocket-wheels 10 mounted loosely on a spindle 12 which is mounted in open bearings 15 to facilitate removal of the spindle when it is. desired to lift the galvanizing-framework out of the bath.
Patent GB-354230-A (GB)
Title: Improvements in or relating to metal arches for mines and the like
IPC: B21D7/08
Filed: 1930-05-03
Abstract: 354,230. Bending bars and pip e s. BRYMBO STEEL CO., Ltd. and GRIFFITHS, L., Brymbo, Wrexham, Denbighshire. May 3, 1930, No. 13663. [Classes 83 (ii) and 83 (iv).] A machine for curving metal pipes or bars, such as fishplates or I-sections for forming colliery arches, comprises a pair of spaced, curved guideways of substantially similar contour or a number of guideways in sequence through which the bar &c. is forced by a pair of rolls. A bar 1 is fed by a pair of rolls 2, 3 through a curved guideway 4 and preferably also through a second guideway 7. The guideways may be set to the desired radius by a rod 35 pivoted to a bracket 34 on the bedplate. The bar is preferably hot and the roll 3 of slightly greater diameter than the roll 2 so as to elongate the outer flange of the bar. The rolls are geared together and are driven by bevel and spur gear from an electric motor 14. The guideway 4 is secured to the base 5 in brackets 6 and the guideway 7 is secured to the extension 8 through holes 9, both guideways being interchangeable to suit the radius required. The guideways may have cover flanges to prevent springing of the bar therefrom. In front of the rolls a roller 16 or other support may be provided to guide the bar where a straight end on the bar is required. The outward end of the guideway 7 may be straight or reversely curved to obtain a straight portion on the forward end of the bar so that the sections can be joined by straight instead of curved fishplates. Ordinarily the curve of the end of the guideway 7 is of slightly less radius than the normal, to correct the curvature of the end of the bar due to clearance in the guideway 4. The base of the guideway 7 may contain a detachable shoe 21 over which is clamped to the guideway a cap so as to prevent or correct distortion of the outer flange and the web and antifriction rollers may also be provided for this purpose. The roll spindles are connected by slightly extensible adjustable tie-rods 28, the spindle 26 being floatingly mounted in a slot 25 in the framing, so that the rolls may grip when reversed to remove the bent bar. The pass adjustment may also be effected by forming the bearing portion 31 of the spindle 26 eccentric and angularly adjusting it by a lever 32. The motor may be reversed by hand or by engagement of the end of the bar with a trip contact at the end of the guideway 7. The lever 32 may be connected to the reversing switch so that the pass may be slightly decreased when the motor is reversed to eject the bar. According to the Provisional Specification a bar of length sufficient to form one or two half arches may be passed completely through the rolls in which case a second pair of rolls is provided at the other end of the guideway. Bars of double length may be cut to length by a saw arranged on the exit side of these rolls and subsequently straightened at their ends.
Patent GB-943919-A (GB)
Title: Phosphoramidates and process for their production
Inventor: MOYLE CLARENCE LLEWELLYN
IPC: C07F9/24
Filed: 1960-04-19
Abstract: The invention comprises phosphoramidates of formula: <FORM:0943919/C2/1> where R is C1-4 alkyl, R1 is hydrogen or C1-4 alkyl and n is an integer from 1 to 5 inclusive. They may be prepared by reacting a halophenyl phosphorodichloridate of formula: <FORM:0943919/C2/2> with a C1-4 alkanol or a reactive functional derivative thereof, giving a halophenyl alkyl phosphorochloridate: <FORM:0943919/C2/3> and then with ammonia or a C1-4 alkylamine, or, alternatively, by reacting a chlorophenol or a reactive functional derivative thereof with an alkylphosphoramidic dichloride: <FORM:0943919/C2/4> giving a chlorophenyl alkylphosphoramidochloridate: <FORM:0943919/C2/5> and then with a C1-4 alkanol or a functional derivative thereof.  Alkali metal alkoxides and phluoxides are the specified functional derivatives. The halophenyl phosphorodichloridates may be prepared by reacting about 4 moles of POCl3 with the appropriate halophenol and the alkylphosphoramidic dichlorides by reacting excess POCl3 with the appropriate alkylamine hydrochloride. The products are pesticides and herbicides (see Division A5).  Intermediate products prepared as above in examples are: 2-chloro-, 2,4-dichloro-, 3,4-dichloro, and 2,4,5-trichloro-, phenyl methyl phosphorochloridates; 4-chloro-, 2,4,5-trichloro-, 2,4,6-trichloro, and 2,3,4,6-tetrachloro-phenyl ethyl phosphorochloridates; and 2,4,5-trichlorophenyl N-ethylphosphoramidochloridate.ALSO:Organophosphorus compounds of formula <FORM:0943919/A5-A6/1> where R is C1-4 alkyl, R is hydrogen or C1-4 alkyl and n is an integer from 1 to 5 inclusive (for preparation see Division C2) are used as herbicides and pesticides, alone or with a solid or liquid carrier.  For pharmaceutical purposes they may be administered by oral, parenteral or topical means and control external and internal parasites.  Specified carriers for intramuscular injection are diethyl succinate, ethyl acetate, propylene glycol, ethyl lactate, diethyl adipate, peanut oil and sesame oil.  For oral administration the active compounds may be mixed with, for example, ethanol, water, skimmed milk, syrups, edible oils, surfactants, edible powders, animal feeds or concentrates or vitamin and mineral supplements.
Patent GB-352611-A (GB)
Title: Improvements in and relating to the manufacture and production of artificial threadsand filaments and products therefrom
IPC: D01F2/30
Filed: 1930-05-05
Abstract: Artificial threads and filaments of reduced lustre are obtained by dry-spinning a solution of an organic ester of cellulose in a volatile solvent which solution also contains a small proportion of titanium oxide and in addition either a monhydric aliphatic ester of a higher fatty acid, as described in Specification 352,412, or an organic ester of a saccharide as described in Specification 352,610. Cellulose acetate threads &c. so obtained are duller than ordinary cellulose acetate silk and readily lose their lustre when treated with a hot soap solution; also they show less tendency to regain lustre when treated in the wet state with a hot iron.  In examples (1) titanium oxide is finely ground in water and the suspension is added to an acetone solution of cellulose acetate containing 1,5 per cent of glucose pentacetate; (2) titanium oxide is ground with an equal weight of amyl stearate and the paste added to an acetone solution of cellulose acetate.  The amount of titanium oxide in each case is 1,25 per cent of the weight of the cellulose acetate. Delustring is effected by treatment for half an hour with a 1,5 per cent olive oil soap solution at boiling point.  Specifications 7341/03, [Class 2, Acids and salts, Organic &c.], 14142/11, [Class 2 (iii), Dyes &c.], 274,054, 297,364, 339,603, [all in Class 2 (ii), Cellulose &c.], 341,897, and 342,743; German Specification 137,255; French Specification 360,395; and U.S.A. Specification 1,365,882 also are referred to.
Patent GB-1458667-A (GB)
Title: Retaining means for rotatable members
IPC: F16B21/18
Filed: 1973-03-22
Abstract: 1458667 Mounting for free relative rotation WILMOT-BREEDEN Ltd 6 Feb 1974 [22 March 1973] 13776/74 Heading F2U [Also in Division E2] The rotatable member 14 of, for example, a key-operated lock is axially positioned within a housing 10 by means of a sheet metal pressing 19 having a washer portion and one or more axiallyextending tongues 21 engaging in a groove 18. A waved washer 22 may be disposed between the locking member 15 and the pressing 19 which may be made from sheet steel; alternatively the waved washer 22 may be dispensed with and the pressing 19 itself waved. The housing 10 is mounted on a plate 12 by a locknut 13.
Patent GB-1116591-A (GB)
Title: Improvements in or relating to the teeming of steel
Inventor: SHAKESPEARE ALAN GOUGH
IPC: B22D23/02
Filed: 1964-05-03
Abstract: 1,116,591. Casting processes. BRITISH IRON & STEEL RESEARCH ASSOCIATION. 3 Aug., 1965 [3 May, 1964], No. 13830/64. Heading B3F. In a method of teeming steel from a ladle 2 into a mould 7, the molten steel is passed through a region of inert gas which is formed by an openended tube 6, extending from a point spaced from the ladle to a point within the mould, and through which the inert gas is passed, from a position intermediate the ends of the tube, both prior to and during teeming. The molten steel is thus shielded as it passes from the ladle to the mould. The tube 6 extends into the mould to a point near the bottom thereof and is dissolved or decomposed as the level of metal in the mould rises.
Patent GB-1042053-A (GB)
Title: Cores for electrical coils and their method of manufacture
IPC: H01F1/22
Filed: 1963-04-08
Abstract: A silicone rubber coating for the threaded core of a timing coil, may be formed by a dipping, or pasting, method, a cross-linking agent being present in the dispersion, or the paste, used.  The core may be dipped into a dispersion comprising 30 parts by weight of cold-vulcanising rubber material, in 50 parts of toluol, 20 parts butanol and 0.2% hardener.  After treatment, the cores are repeatedly dried on a rotating drum, with moderate heating to drive off residual solvent.  For larger cores, the coating is pasted on in strip-like form and comprises 60 parts of hot-vulcanising rubber paste, mixed with 30 parts toluol and 20 parts butanol.  The cones are fed continuously onto a conveyor belt, moving past a paste applying device, from which pumps or gas pressure force jets of paste onto the cores. Residual solvent is removed by heating at 80 DEG C., and vulcanisation takes place at 100-150 DEG C.  Alternatively, the larger cores are first coated by the dripping process, the dispersion in this case comprising 30% cold-vulcanising rubber in benzine (thinned with equal parts of toluol).  After centrifuging to remove excess dispersion and solvent, a hot vulcanising rubber strip is applied by the pasting method, the excess solvent is driven off at 80 DEG C., and vulcanisation carried out at 150 DEG C., to form a homogeneous coating.
Patent GB-217411-A (GB)
Title: Improvements in and relating to circular saws and benches for same
IPC: B27B5/18
Filed: 1923-05-26
Abstract: 217,411. Fogarty, F. M. May 26, 1923. Circular-saw machines. - Logs or other pieces of timber are cut by a circular saw carried by a rocking frame e and driven by an internal - combus - tion engine through a chain i. i. The pivots of the frame may be eccentrically mounted for the purpose of adjusting the chain. The motor may exhaust into the hollow base which acts as a silencer; or an electromotor may be used. Reference has been directed by the Comptroller to Specifications 18480/01, 3194/14, and 165,712.
Patent GB-990072-A (GB)
Title: Pressure responsive safety control for internal combustion engines
IPC: F01M1/24
Filed: 1962-04-11
Abstract: 990,072. I.C. engine stop gear; emergency alarms. AMOT CONTROLS CORPORATION. April 11, 1962 [April 17, 1961], No. 14033/62. Headings F1B and F1K. A pressure-responsive safety control comprises a first lever 16, Fig. 1, connectable to an engine shut off device 17, e.g. a fuel injection pump or air throttle, a spring 18, Fig. 4, urging the first lever to a shut off position, means 21 rotatable with the first lever and having a latch shoulder 22, a second lever 23 carrying a pawl 24 which moves between an advanced position, in which the pawl engages the shoulder to hold the first lever in the run position, and a retracted position in which the first lever is released by movement by the spring into the shut-off position; pressure responsive means 26 being connected to move the second lever to its advance position when engine oil pressure is present and permitting movement of the lever to its retracted position when the engine oil pressure is absent. Operation. Lever 16 is swung to the run position and a temporary holding latch handle 78 is raised to its horizontal position to cause a cam portion 76, connected thereto, to displace lever 23 against the force of an adjustable spring 51 to its advanced position in which pawl 24 engages shoulder 22. With lever 16 temporarily supported in its run position the engine is started and increasing engine oil pressure displaces diaphragm 42 and pin 46 to the right to cause a slight clockwise rotation of lever 23 thereby permitting rotation of cam 76 by the falling weight of handle 78. Alternatively the handle 78 may be spring-loaded. When loss of oil pressure occurs, spring 51 displaces lever 23 in the anti-clockwise direction to withdraw pawl 24 from shoulder 22 thereby permitting displacement of lever 16 to its shut-off position by spring 18. The engine oil pressure in chamber 26 can be arranged to be reduced by components arranged in line 27 and sensitive to temperature, vibration or speed. The device may be tripped manually by means of a lever 69 which acts through a spring-loaded pin against a side arm attached to the end of lever 23. In a modification the tensioning spring is replaced by a pin reciprocated by a spring- loaded lever directly attached to an engine load lever so that the tripping pressure exerted by the spring is increased in accordance with the engine load. In addition to or as an alternative lever 16 may be connected to actuate an alarm or warning device.
Patent GB-1139089-A (GB)
Title: A method of and slinger for lining vessels with granular material
IPC: B22C15/20
Filed: 1966-03-30
Abstract: 1,139,089. Repairing ladle linings. BADISCHE MASCHINENFABRIK G.m.b.H. 30 March, 1966 [30 March, 1965], No. 14187/66. Heading F4B. [Also in Division B3] In a method of lining axially symmetrical vessels such as foundry ladles, granular material such as sand is projected into the ladle by a sand slinger, the head 8 of which is angularly movable about a horizontal axis and rotatable about a vertical axis, whereby a jet of sand from the slinger head is directed into a gap between a former 3 and the inner periphery of the ladle 1 in the form of a helix thereby building up a lining within the ladle, the diameter about which the slinger head rotates being adjustable so that the thickness of the lining can be varied by depositing consecutive layers and variations in the diameter of the ladle or vessel can be accommodated. The sand slinger 4 comprises a support column 5 with a cantilever arm 6 from which is suspended by a carrier 7 a slinger arm with a centrifugal slinger head 8. The arm 6 is slidable on rollers 9, 10 to permit variation in the operative length of the arm and the slinger head is adjustable about the vertical axis of rotation of the carrier 7 by means 23 to vary the diameter about which the head rotates. The angular movement of the slinger arm and head 8 about the horizontal axis through trunnions 18 on the carrier 7 is effected by means 19, drive motor 13 effecting the rotation of the slinger arm and head about the vertical axis and motor 21 driving the slinger head. The lining material is fed to the slinger head from hopper 24 via conveyer belts 25 and 27 on the cantilever arm and slinger arm respectively to the wheel 20 of the slinger head.
Patent GB-567866-A (GB)
Title: Curved wall welded connections
IPC: B64C3/18
Filed: 1943-08-31
Abstract: 567,866. Uniting by fusion. DEWEY, C. L. Aug. 31, 1943, No. 14203. [Class 83 (iv)] [Also in Group XXVIII] In a welded joint for tubes, a tube 10 has a bulge 12 comprising an imperforate wall curving in all directions from the crest of the bulge, a tube 11 has a plane end face engaging the bulge in line contact on its inner edge, and a welding ring 14 surrounds the joint and underlies the butt end of the tube 11. Specification 519,500 is referred to.
Patent GB-1286767-A (GB)
Title: Improvements in and relating to fluid-tight seals
IPC: G21F7/005
Filed: 1971-05-11
Abstract: 1286767 Seals ROBERT BOSCH GmbH 11 May 1971 [26 June 1970] 14269/71 Heading F2B A rotary coupling member 15 for transmitting rotary motion to mechanisms within, for example, a contaminated nuclear reactor chamber 10 comprises a bushing 14 which is mounted in a wall 12 of the chamber and provided with a shoulder or step portion 16 for supporting the bushing, and sealing rings 17, 18 disposed one each side of the shoulder or step, the coupling member being adapted to be connected to a drive-shaft 23 and having a wall portion 25 which closes the passage through the bushing. The drive-shaft is supported in a vacuum chamber 11 by columns and a bearing sleeve 24 and is driven by a motor 34 through a safety coupling 36. As shown, the halfcoupling 15 and drive-shaft 23 are sealed from the chamber 10 by the sealing ring 17, lip seal 18, liquid seal 29<SP>1</SP> (e.g. oil or grease) and lip seals in the bearing sleeve 24. If leaks occur at these seals, oil running down the drive-shaft will collect on a disc 42 and flow over the edge into a trough 43 which may be provided with a leakage indicator. To remove the drive-shaft from the half coupling 15 the annular space 19 containing the lip seal 18 is first evacuated through a suction pipe 21 to retain the seal at the coupling, the liquid seal 29<SP>1</SP> then being removed with the shaft and bearing sleeve after removal of a fixing ring 27.
Patent GB-1219893-A (GB)
Title: Tobacco smoke filters
Inventor: DIXON OLAF GEORGE
IPC: A24D3/10
Filed: 1967-03-30
Abstract: 1,219,893. Tobacco-smoke filters. COURTAULDS Ltd. 18 June, 1968 [30 March, 1967], No. 14533/67. Heading A2C. [Also in Division D1] A tobacco-smoke filter comprises a compact bundle of fibres of cellulose acetate in which at least part of the surface of some, or all, of the fibres has been saponified to cellulose. The whole of the surface of the cellulose acetate fibres may be saponified, or part only (e.g. by drawing a tow over a wick dipping into, or a roller surfaced with, an alkaline reagent). Saponified fibres may be combined with unsaponified fibres. Where unsaponified fibres or fibres with their fibres only partly saponified are present, bonding of the fibres with a plasticizer such as triacetin is possible, otherwise bonding is effected with an adhesive such as a high molecular weight ethylene oxide polymer, a resin latex, or a cellulose ether. The filter may form a component of a multiple filter that includes a crimped paper section with or without adsorbent additive material such as active carbon.