baber/WOPTO huggingface dataset:
Patent GB-1282091-A (GB)
Title: Fuel burner assemblies
Inventor: LEACH HAROLD WILLIAM
IPC: F23C5/02
Filed: 1968-06-27
Abstract: 1282091 Mounting liquid fuel burners JOSEPH LUCAS (INDUSTRIES) Ltd 22 Sept 1969 [27 June 1968] 30691/68 Heading F4T A liquid fuel burner 10, so mounted on a boiler 25, so as to slide between an aperture position and a second position at which a fuel supply valve 11 is automatically shut off and the burner can be removed. The burner is carried by a support which is slidably with respect to the boiler 25 and comprises plates; 26, 27 through which the burner passes and to which are secured horizontal plates 28, 29 and a box-shaped housing 31. The housing has a pivotal flap 32 which closes when the burner has been removed from the support. The horizontal plates 28, 29 support the supply valve 11 and a spill valve 13 which have operating arms engaging in slots 22, 24 in a plate 24 secured to the boiler so as to close the valves on sliding the burner to the second position. One end, 106, of the burner has a recess 38 in which engages a hand wheel 37 secured to one end of a pivotal clamp arm 35 so as to secure the burner to the plates 26, 27 when the burner is in the second position, the hand wheel can be unscrewed and the arm 35 pivoted upwardly to release the burner, such pivoting being prevented by a fixed bar 50 when the burner is in the operative position. The other end of the arm 35 carries a ring 41 between which and the arm 35 is formed a D-shaped opening into which a D-shaped part 46 carried by a spring urged piston 44 engages when the burner is in the second position. An extension 48 of the plate 27 is wedge-shaped at 49 so as to correspond with a block carried by the piston (44 and be engaged by same) when the burner has been removed. Thus the burner support cannot be moved to the operative position without the burner.
Patent GB-489982-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B9/08
Filed: 1937-11-09
Abstract: 489,982. Photographic cameras. ZEISS IKON AKT.-GES. Nov. 9, 1937, No. 30750. Convention date, Feb. 26. [Class 98 (i)] A photographic camera having an objective mounting which can be pushed into the camera housing, and an auxiliary shutter for covering the ray path when the objective mounting is in the pushed-in position, includes means for positively moving the said auxiliary shutter into the covering position and also opening the main shutter in the camera housing, operation of said means being necessary before the objective mounting can be pushed into the camera housing. As shown, the objective mounting 5 is slidable in the housing 2 which also contains the shutter 3 controlled by setting and release members 19 and 20. The mounting is maintained in the exposure position in a bayonet joint 6. It has in its surface a longitudinal groove 7 leading to a circumferential groove 8. The groove 7 engages a projection 10 on the ring 9 which thus rotates with the objective. A plate 13 with an extension 12, pivoted at 14 to the housing 2, constitutes the auxiliary shutter. The time setting ring 15 has a lug 16 engaging the groove 8 in the objective mount. To push the lens mount into the camera the time setting ring is turned to the " bulb " position indicated by the scale 17 co-operating with a mark 18, and the lens mount turned until the groove 7 is opposite the position which the lug 16 has taken up. By then the extension 11 on the ring 9 will have engaged first the extension 12 on the auxiliary shutter 13 to move the latter into the ray path, and then the lever 20 to open the main shutter. The objective mounting may then be pushed into the camera housing through the main shutter.
Patent GB-521747-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: B63H23/24
Filed: 1938-10-25
Abstract: 521,747. Control of A.C. motors. GENERAL ELECTRIC CO., Ltd., and COATES, H. J. Oct. 25, 1938, No. 30756. [Class 38 (iii)] A motor 1 supplied by alternators 2 driven by diesel engines, and used in a ship propulsion system, is braked or reversed, by opening the " ahead " switch 11, closing a switch 16 to apply D.C. excitation to a stator winding 15. When the motor has slowed down sufficiently the switch 16 is opened and the " astern " switch 12 is closed. This sequence of operations prevents the possibility of stalling the diesel engines.
Patent GB-1420526-A (GB)
Title: Method of manufacturing gas-tight tubes or reservoirs
IPC: C23C16/34
Filed: 1973-06-28
Abstract: 1420526 Silicon nitride coatings PHILIPS GLOEILAMPENFABRIEKEN NV 28 June 1973 [1 July 1972] 30809/73 Heading ClA A coating of pyrolytic silicon nitride is deposited on the inner surface of a tube or reservoir to render it gas tight, the said coating being corrosion resistant at temperatures up to 1000‹ C., the material of the tube or reservoir having a coefficient of thermal expansion which is larger than that of the pyrolytic silcon nitride, the deposition comprising the concave inner walls of the tube or reservoir at a temperature between 750‹ and 900‹ C. with a current of a gas mixture comprising ammonia and a volatile silicon compound. The volatile silicon compound may be silane, silicon tetrafluoride or silicon tetrahalide, and the mixture may also contain hydrogen and optionally nitrogen or a rare gas. The concave walls may be maintained at a temperature differing not more than 100‹ C. from the maximum temperature reached during the use of the tube or reservoir, but is at least 750‹ C.
Patent GB-1367238-A (GB)
Title: Complex polyelectrolytes
IPC: C08L71/08
Filed: 1972-07-30
Abstract: 1367238 Dialysis; ultra filtration RHONEPOULENC SA 30 June 1972 [2 July 1971] 30833/72 Heading B1X [Also in Division C3] Films and membranes useful for fractionating protein solutions and in applications such as artificial kidneys and lungs are formed from complex polyelectrolytes which comprise an ionically crosslinked, polymer which is soluble in a liquid organic medium and which corresponds to the general formula: in which the symbol N<SP>+</SP> represents a quaternary nitrogen-containing group; the symbol represents a first macromolecular chain to which the indicated -SO 3 <SP>-</SP> groups are linked via a divalent radical or a direct bond, the symbol represents a second macromolecular chain, the symbol indicates that the N<SP>+</SP> groups shown are linked to said second macromolecular chain via at least one divalent radical or direct bond, and said macromolecular chains, considered together, do not contain oppositely charged groups which are capable of forming inter chain covalent bonds; the ratio n/m is from 0.1 to 10; and the nature of the units forming the macromolecular chains and the values of n and m are such that the polymer of the formula: in which M represents a hydrogen ion or an alkali metal or alkaline earth metal ion and x is 1 or 2, and the polymer of the formula: in which A represents a hydroxyl radical or the anion of an inorganic or organic acid of formula AHy, y being 1, 2 or 3, are both insoluble in water but soluble in a common liquid organic medium. The films and membranes can be planar, tubular or spiral and may have isotropic (dense structure of uniform porosity) or anisotropic (having a porosity gradient from one face to the other) structure. In Examples the membranes are used to fractionate (e.g. by ultra filtration, inverse osmosis or dialysis) bovine albumen, ovalbumin, lysozyme and cytochrome C. In the Examples the polyelectrolytes are derived from (a) acrylonitrile-sodium methallyl sulphonate copolymer or sulphonated polyaryl ether/sulphone and (b) acrylonitrile/3-vinyl-6-methyl pyridine copolymer quaternised by methyl sulphate, a phenoxy resin quaternised by treatment with epichlorohydrin and then with trimethylamine, or a polyester-quaternised polyurethane.
Patent GB-149569-A (GB)
Title: Improvements in bulkhead and like doors
IPC: E05C19/00
Filed: 1919-12-10
Abstract: 149,569. McNeil, A. Dec. 10, 1919. Multiple-bolt fastenings.-In a multiple-bolt fastening for bulkhead and like doors, T-shaped, links E are attached at one end to lugs D on bolts C and at the other are provided with pins H. which work in a continuous cam-groove J to lock and unlock the door, the bolt on the hinged side of the door preventing the bolts from being shot when the door is open. The bolt N, Fig. 2, passing through the cam-plate K, boss K', and bearing-block M, is secured by the nut O, the camplate being rotated by means of horns P formed on the bolt-head and bearing-block. In addition to guide-straps F and G, flanged angle-brackets V are secured, one at each corner of the door, by integral base-plates V<1>. Wedge pieces U, Fig. 3, attached to the angle-ring R riveted to the bulkhead Q, extend the same width as the bolts to ensure a tight joint.
Patent GB-974882-A (GB)
Title: Washing apparatus
IPC: A47K3/12
Filed: 1960-09-08
Abstract: 974,882. Aerated baths. S. L. SIERANT. Sept. 7, 1961 [Sept. 8, 1960; Sept. 26, 1960; Jan. 13, 1961; Jan. 17, 1961], Nos. 30925/60, 32923/60, 1486/61 and 1865/61. Addition to 959,196. Heading A4N. [Also in Division B1] A network of ducts C is provided in a rubber or plastic aerating mat having a network of grooves overlying the ducts. Air under pressure is supplied to pipe F and passes through holes extending between the ducts and the bottoms of the grooves to aerate the bath. The use of warm air is referred to, and this may subsequently be made to issue from upstanding perforated pipes to dry the bather. When the mat is used to wash crockery, the warm air may be used for drying it. Instead of a separate mat, the network of ducts may be formed in the bottom wall of a plastic bath which has perforations communicating with the ducts.
Patent GB-742630-A (GB)
Title: Acylhydrazones of mixed ketones
IPC: C07D213/86
Filed: 1953-11-10
Abstract: The invention comprises compounds of the formula <FORM:0742630/IV(a)/1> wherein A is an aryl or heterocyclic radical, either of which may be nitro-substituted, R1 is a phenyl or heterocyclic radical, either of which may be nitro-substituted, R2 is hydrogen, a lower alkyl or lower hydroxy alkyl radical, R3 is hydrogen, a lower alkyl or an amino group either free or present as a salt with a mineral acid or substituted with one or more lower alkyl or acyl radicals.  By "lower" is meant up to eight carbon atoms.  The compounds are prepared by reacting a hydrazide of the formula A-CO.NH.NH2 with a mixed ketone of the formula R1.CO.CHR2R3, e.g., by refluxing in ethyl alcohol.  The examples describe the preparation of the isonicotinyl hydrazones of (1) 5-nitro-2-acetothienone; (2) 2-propiothienone; (3) a -acetamido-2-acetothienone; (4) a -acetamido-b -hydroxy-2-propiothienone; (7) a -amino-acetophenone hydrochloride; (8) a -acetamido-acetophenone; and (9) a -acetamido-b -hydroxypropiophenone; and also (5) 2-acetothienone p-nitrobenzoyl hydrazone; (6) 4-nitro-2-acetothienone benzoyl hydrazone and (10) a -propionamido-acetophenone p-nitrobenzoyl hydrazone.
Patent GB-871061-A (GB)
Title: Improvements in or relating to process for making uranium hexafluoride
IPC: C01G43/06
Filed: 1958-09-30
Abstract: Uranium hexafluoride is prepared by reacting uranium concentrates, in which the uranium has a valency of 4 to 6, with fluorine in a fluidised bed in at least two stages.  In the first stage, which is carried out below 300 DEG C., non volatile uranium-fluoride compounds are formed, and in the later stages these compounds are further fluorinated to uranium hexafluoride, which is condensed from the issuing gases.  The uranium may be present in the form of an oxide, e.g. UO3 or U3O8, or as UO2F2, or as a fluoride, or in the form of a material selected from the group consisting of uranium oxides chemically combined with acidic or basic oxides. In the preferred process, a uranium ore concentrate is comminuted, and all the uranium values are converted to UO2 by fluidisation with a hydrogen-containing gas in at least two stages, the first stage sufficing to reduce all the reducible impurities a part of the uranium, and the remaining stages completing the reduction of the uranium.  This product is now fluidised with HF in at least two stages, the first stage fluorinating the impurities without sintering, and the remaining stages completing the conversion of UO2 to UF4.  This is now fluidised with a fluorine-containing gas in at least two stages, the first stage forming non volatile UF5 and the remaining stage completing conversion to UF6, which is volatilised. In any step the gases from a later stage may be cycled to the preceding stage.  All the steps prior to the fluorination step may also be carried out under non-fluidised conditions.
Patent GB-504644-A (GB)
Title: Improvements in boxes or cases
IPC: B65D43/12
Filed: 1937-11-15
Abstract: 504,644. Boxes. BLELOCH, W. E. Nov. 15, 1937, No. 31304. [Class 18] The removable lid 6 of a box engages with one end of the latter by means of a tongue 7 and groove 8 and, at the other end, it is held on by a spring strip 10 riveted in a recess on the outside of the box, the upper end of the strip fitting over a projection in a recess in the lid. A recess 17 facilitates opening of the lid, and a projection 18 prevents the lid from being slid back so far as to strain the strip 10. In the closed position, the lid rests on ledges 16. The box can be made of wood, metal, or synthetic resin.
Patent GB-741563-A (GB)
Title: Manufacture of acetyl-acetone
Filed: 1952-12-10
Abstract: The process of the parent Specification for the manufacture of acetylacetone from acetone, ethyl acetate and an alkali alcoholate is modified by using an alkali metal or alkali metal hydride instead of an alkali alcoholate.  Preferably the alkali metal is used in the form of an emulsion in an inert liquid.  In the example, acetone, ethyl acetate and sodium finely dispersed as an emulsion in a high-boiling petroleum fraction are gradually added to ethyl acetate while the mixture is cooled; when the addition is complete the temperature is raised to the boilingpoint and the alcohol formed is distilled off as an azeotropic mixture with ethyl acetate and any acetone present; the cooled mixture of sodium acetyl-acetone, sodium ethyl aceto-acetate and ethyl acetate left is acidified and worked up in known manner to give acetyl acetone.
Patent GB-1142715-A (GB)
Title: Abscisin II
IPC: C07C51/00
Filed: 1967-07-07
Abstract: 1,142,715. Abscisin II. R. J. REYNOLDS TOBACCO CO. 7 July, 1967 [2 Nov., 1966], No. 31390/67. Heading C2C. 3 - Methyl - 5 - (1 - hydroxy - 4 - oxo - 2,6,6- trimethylcyclohex - 2 - en - 1 - yl) penta - cis - 2, (raws-4-dienoio acid (abscisin II) is prepared by a process which comprises oxidizing a C 1-4  alkyl ester of cis,trans-α-ionylideneacetic acid with a tertiary alkyl chromate and then hydrolysing the resultant ester. Suitably the oxidation is carried out at 60- 120‹ C. using the methyl or ethyl ester of cis, trans-α-ionylideneacetic acid. Abscisin II can be separated from its trans, trans isomer by slow crystallization from ether or benzene. α-Ionylideneacetic acid is prepared by reacting α-ionone with the reaction product of sodium hydride with trimethylphosphonoacetate
Patent GB-937279-A (GB)
Title: Improvements in pivoted bolts for sliding doors or the like
IPC: E05B65/08
Filed: 1962-08-16
Abstract: 937,279. Deadbolts. G. H. A. WOOD. Aug. 16, 1962. No. 31427/62. Class 44. A claw type deadbolt includes claws 13 pivoted at fixed points 12 within the casing and swung apart and drawn together by the linear movement of a sliding plate 16 having a recess 22 engaged by the nose 25 of an operating hub 23. The movement of the nose 25 is limited by stops 26 to give positions producing positive bolting and unbolting. Tongues 33 are provided to protect the claws 13 from attempts at picking. The bolt is operated by a cylinder lock 27 which has a tongue 31 engaging a slot 24 in the operating hub 23.
Patent GB-1098778-A (GB)
Title: Arrangement of baffles in a centrifugal strainer
IPC: B04B3/04
Filed: 1966-07-14
Abstract: 1,098,778. Centrifugal strainers. ERNST HEINKBL MOTORENBAU G.m.b.H. July 14, 1966 [July 27, 1965], No. 31579/66. Heading BID. In a centrifugal strainer in which maternal flows from inlet 11 down the inside of a cloth or perforate screen 8 lining a frusto-conical drum 7, a liner 4, 5 rotates with the drum and carries a plurality of circumferentially adjustable rings (19) (Figs. 2, 3, not shown) which carry generally spirally extending baffles 6 extending outwards to abut screen 8. Baffles 6 curve so as to oppose the flow of material between screen 8 and liner 5, and by adjusting the rings (19) so that baffles 6 abut axially or are more or less staggered, the dwell time of material in the drum is adjusted. Rings and baffles may 'be of plastics, and further adjustment of dwell time may be effected by changing rings (19) for another set whose baffles have a different curvature or pitch. Hub 4 supports drum 7 on shaft 1, liquid is drained from chamber 15 by outlet 17 and solids are thrown into chamber 14.
Patent GB-838276-A (GB)
Title: Improvements in telephone dials
IPC: H04M1/23
Filed: 1958-10-03
Abstract: 838,276. Impulse transmitters. STANDARD TELEPHONES & CABLES Ltd. Oct. 3, 1958 [Oct. 9, 1957], No. 31668/58. Class 40 (4). In a telephone dial the finger-plate 3 is moulded from nylon on to the spindle 2, the gear-wheel 5 being moulded on an integral boss 4 on the finger-plate 3. A stud 17, which limits the travel of the dial, is moulded integrally with the finger-plate and gear-wheel. An annular well 18 is formed in the boss 4. The number-plate 9 has an opening through which the boss 4 may be inserted to enable the gearwheel 5 to mesh with a governor pinion 6. The star-wheel 7 driven from the governor pinion is moulded from nylon.
Patent GB-369585-A (GB)
Title: Improvements in or relating to the casting of metals
IPC: B22D21/00
Filed: 1930-10-22
Abstract: 369,585. Mould materials. AMERICAN MAGNESIUM CORPORATION, Oliver Building, Pittsburg, U.S.A.- (Assignees of Wood, R. T. ; Lakewood, Ohio, and Frary, F. C. ; Oakmont, Pennsylvania, both in U.S.A.) Oct. 22, 1930, No. 31726. Convention date, Oct. 23, 1929. [Class 83 (i).] Moulds for casting magnesium and other easily oxidizable metals are made from sand mixed with 1 to 3 per cent of ammonium phosphate. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a mould material containing in addition to ammonium phosphate one or more other protective substances such as ammonium fluoride, chloride, bisulphate or .borate, magnesium fluoride or oxalate, potassium sulphide, sulphur, boric acid, glycerine, glycol, urea, naphthalene, and anthracene. This subject-matter does not appear in the Specification as accepted.
Patent GB-1433872-A (GB)
Title: Lakaline electric storage cells
IPC: H01M2/18
Filed: 1972-07-06
Abstract: 1433872 Alkaline storage cells CHLORIDE ALCAD Ltd 4 July 1973 [6 July 1972] 31756/72 Heading H1B A cell is similar to that disclosed in Specification 1,080,992 having electrodes in the central region of a cylindrical casing 22 of greater width than the electrodes in the two regions to either side of the central region, so as roughly to conform to the cylindrical inner surface of the casing. As shown, the positive electrodes 10 and negative electrodes 16 are both composed of perforated pocket units of a standard width which may be crimped together to form an electrode consisting of two or three units. Thus, the positive electrodes 10 consist of two electrodes each having two pocket units and three electrodes each having three pocket units, and the negative electrodes 16 consist of two electrodes each having a single pocket unit, two electrodes of two pocket units and two electrodes of three pocket units. The pocket units are formed of perforated steel strip (Fig. 2, not shown) and contain the active material. The electrodes 10 are connected together by a foil strip 12 welded to one edge of the electrodes and the electrodes 16 are connected together at their opposite edges by a foil strip 18. A separator strip 14 of plastics fabric extends zig-zag fashion between the electrodes 10, 16 and contains the alkaline electrolyte. To facilitate recombination of the gases generated within the cell and enable the cell to be sealed, the electrodes are arranged in step formation at their edges and the separator strip is so wound that gas-accumulation pockets 24, 26 are formed bounded by exposed surfaces of the negative electrodes 16, in which pockets gas recombination may take place.
Patent GB-638594-A (GB)
Title: Improvements in or relating to the grinding of tools
IPC: B24B41/06
Filed: 1947-12-02
Abstract: 638,594. Grinding lathe tools. SIMMS MOTORS UNITS, Ltd., and WEBB, F. O. Dec. 2, 1947, No. 31830. [Class 60] A device for use in the precision grinding of metal cutting tools for lathes comprises a substantially rectangular carrier block 1 having a recess 2 in one side face in which a plurality of tool blanks can be positioned side by side with their ends which are to be ground to the required front rake and profile all extending beyond the block at an inclination to the end faces of the latter which is equivalent to the required amount of front rake, the carrier block having a second recess 4 formed in another side face in which second recess the tool blanks can be positioned side by side at an inclination to the floor of the recess equivalent to the amount of top rake required ; the device also comprises means for clamping the tool blanks in the respective recesses, the arrangement being such that the tool blanks, when clamped in a recess, can be simultaneously ground to the appropriate shape on a normal grinding machine. When grinding the profile and front rake, Figs. 1 and 2, the tool blanks 3 are clamped in the recess 2 by a bar 5 secured to the block 1 by set screws 6. The inclination of the blanks is determined by a pivoted arm 7 set by a slip gauge 8 ; a screw 7a carried by the arm 7 engages a clamping nut displaceable along an arcuate groove 9 in the base of the recess 2. For checking of the profile and rake by an optical device 11, Fig. 5, the block 1 is supported by an end face 1a provided with sine bar rollers 12 secured by screws 13 ; the block is tilted, so as to bring the tool blanks horizontal, by a slip gauge 8a. When grinding the top rake, Fig. 4, the recess 4 is used. This contains a platform member 14 provided with sine bar rollers 15, 15a secured by screws 16. The sine bar roller 15a is formed with a pivot at each end, the pivots being engaged in recesses in hinge blocks secured to the block. The desired inclination of the platform 14 is obtained by a slip gauge 8b co-operating with the roller 15. A clamp pad 21 is pivotally carried by a clamping bar 19 secured across the recess 4 by means of set screws 20. The front ends of the tool blanks bear against a stop plate 23 secured to the block 1. To hold the platform 14 against the base of the recess 4 when not in use, a screw 25 is passed through a central aperture 24 in the platform 14 and engages a screw-threaded aperture 26 in the base of the recess 4.
Patent GB-1103947-A (GB)
Title: Process for the production of monoallyl ether copolymers
Filed: 1965-07-26
Abstract: Copolymer dispersions are produced by copolymerizing at least one monoallyl ether of a di- or poly-hydric alcohol with vinyl acetate, chloride and/or caprate, styrene, methyl and/or ethyl acrylate, and/or methyl methacrylate in dispersion in an aqueous medium which is free from emulsifier.  The ether may be a monoallyl ether of glycerol, pentaerythritol, hexanetriol or trimethylol-propane.  The polymerization mixture may contain hydroxymethyl cellulose, (NH4)2S2O8 and NaHCO3.