baber/WOPTO huggingface dataset:
Patent GB-1011339-A (GB)
Title: Fuel element centering device for nuclear reactors
Inventor: BOUDOURESQUE BERNARD
IPC: G21C3/38
Filed: 1963-04-17
Abstract: 1,011,339. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 17, 1963 [April 20, 1962], No. 15164/63. Heading G6C.   A device for centring a herring-bone pattern finned fuel element in the channel of a nuclear reactor comprises at least three spiders secured within the fuel channel, the inner ends of which engage in longitudinal slots formed longitudinally of the fuel element between adjacent sets of fins. The invention is particularly applicable to CO 2  cooled vertically orientated graphite moderated reactors employing fissile fuel enclosed in magnesium-zirconium alloy cans closed at their ends by welded plugs of manganese-magnesium alloy. The fuel element comprises a fissile tube 4 within the can 8, which has a corrugated inner wall coacting with the fuel surface to prevent relative axial movement of the fuel and can. Each end of the fuel tube is closed by a uranium disc 6 and the end plug 14. The can exterior has a herring-bone pattern of fins on it, comprising between four and twelve zones of parallel fins inclined to the longitudinal axis, adjacent zones being of opposite inclination. The spider shown in Fig. 2 is split at the hole accommodating dowel 42, its free diameter being greater than the housing diameter in the graphite tube 19 into which it is expanded. The three spider blades 34, 36, 38 fit within alternate slots 17 (Fig. 1) between adjacent fin zones. A thermal clearance " j " is provided. In an alternative form of spider (Fig. 3, not shown), the outer ring comprises three spaced apart portions joined to one another by three V-shaped inwardly pointing spider blades, the gaps in the outer ring being used to allow compression of the spider prior to release into the annular channel housing. As seen in Fig. 1, it is preferable to use three spiders for centring each fuel element. In a further modification, the spider blades may be independently embedded in the graphite channel tube 19. In all the embodiments the spider blades are preferably formed of a magnesium alloy. Specifications 907,625, 960,813 and 1,011,385 are referred to.
Patent GB-317875-A (GB)
Title: Improvements in and relating to games-practice appliances
IPC: A63B61/00
Filed: 1928-05-24
Abstract: 317,875. Hedge, C. H. May 24, 1928. No Patent granted (Sealing fee not paid). Tennis-practising appliances.-An appliance for practising lawn tennis comprises a net a, at least half the length of a tennis net, and a strip, bar or rail g supported at such a distance above the upper edge of the net as to provide a gap s corresponding at the normal angle of service to the area of the service court. Stop-netting having forwardly directed wings is disposed behind the appliance. The strip g is preferably formed of canvas or other flexible material stretched between extensions e of the net posts b, c by springs q, and stiffened by vertical battens. The height of the strip is rendered adjustable by the provision of a series of screw-eyes f on each extension e. A band n attached to the lower edge of the strip represents the base service line of the court. The posts b, c may be mounted on wheeled bases.
Patent GB-948307-A (GB)
Title: Preparation of quinacridone pigments
IPC: C09B48/00
Filed: 1960-04-29
Abstract: Finely-divided quinacridones are made by precipitating a quinacridone from a polyphosphoric acid solution thereof by dilution with a water-miscible solvent, the said solution being prepared by the ring-closure of a 2 : 5-diarylaminoterephthalic acid by heating with at least an equal weight of a polyphosphoric acid having an orthophosphoric acid equivalent of at least 105%. Water-miscible solvents specified are methanol, ethanol, isopropanol, glycerol, diacetone alcohol, diethylene glycol and acetone or mixtures thereof with water or with other organic liquids such as a mixture of denatured alcohol, ethyl acetate and aviation gasoline. To prevent reaction of the polyphosphoric acid with the solvent, the solution may first be diluted with water or syrupy orthophosphoric acid. Examples are given.
Patent GB-1410565-A (GB)
Title: Coatings
IPC: B05D7/16
Filed: 1973-03-29
Abstract: 1410565 Coated substrates DYNAMIT NOBEL AG 29 March 1973 [1 April 1972] 15281/ 73 Heading B2E A substrate having a metallic surface is coated on the metallic surface with a coating consisting of a layer of polyvinyl fluoride adhering to the surface and a layer of polyvinylidene fluoride adhering to the layer of polyvinyl fluoride. The substrate is preferably steel or aluminium sheet, which may be phosphatised, zinc plated or chromatised. The polyvinyl fluoride may be applied as a dispersion (preferably of particle size 0.1 to 0.14Á) 'by spraying, spreading, dipping or roller coating followed by baking and preferably contains an adhesion promoting pigment e.g. TiO, and/or basic oxide (e.g. an alkaline earth oxide such as MgO, or ZnO). Microparticulate fillers suoh as kaolin, quartz or silicates of particle size <20Á may be present. The polyvinylidene fluoride may be applied and baked in the same way as the polyvinyl fluoride, and may contain a polymer of a C 1  to C 4  alkyl methacrylate or alkylacrylate.
Patent GB-1378487-A (GB)
Title: Punch presses
IPC: B21D28/12
Filed: 1972-01-26
Abstract: 1378487 Punching US AMADA Ltd 26 Jan 1972 [19 Feb 1971] 15300/74 Divided out of 1378183 Heading B3W  A press frame, carrying a turret punch 30, 32, comprises an upper frame 20 supported on a lower frame 18 by four corner posts 122 and has a ram 46, having a punch striker, mounted in the mid-section of the frame for even distribution of loads applied to the ram to avoid misalignment of the striker and the operative punch. A worktable 50 has extensions 54 supported by the lower frame 18 by means of pivotable brackets 62, 64 to allow the extensions 54 to move longitudinally of the table parallel to the Y axis along guides 56 by means of a reversible motor and screw mechanism (84), Fig. 2 (not shown). Movable with the extensions 54 is a guideway 78 in which a carriage 80 including work clamps 82 is slidable along the X axis. The carriage is moved by a numericallycontrolled motor and screw mechanism (81). Work-supporting posts 52 on the table 50 are lowered out of the path of the clamps 82 by engagement of an upper cam edge (86) of members 58 on the extensions 54 which run on the guides 56 with cam followers (87) on cam shaft (88) extending below the table 50 and on which the posts 52 rest.
Patent GB-419613-A (GB)
Title: Improvements in child's cots
IPC: A47D7/02
Filed: 1933-05-27
Abstract: 419,613. Drop-side cots. GOOCH, A. A., 14, Baldwins Gardens, Holborn, HAINES, H. J., 18, Bearstead Rise, Crofton Park, and TIMBER GOODS, Ltd., 164, Kennington Road, Kennington, all in London. May 27, 1933, No. 15383. [Class 52 (ii).] In a drop-side cot of the kind in which the end members or frames have vertical grooves in which projections on the drop-down side frame engage, the width of the opening of the slot or groove 2 in the end frame 1 is restricted by side plates 4 disposed vertically on each side of the slot and projecting slightly thereover, the plates having a keyhole slot 7 and a cutaway part 18 at the bottom for the insertion or withdrawal of the heads of the projections on the drop-side frame, and a projection on ea ch end of the bottom rail of the drop-side is adapted to engage with a stop member 12 pivotally mounted on the end frame. A catch 8 is provided at the upper end of the slot to retain the dropside in raised position. When the stop members 12 are turned into horizontal position, the lower projection on the drop-side falls to the bottom end of the slot, and the upper projection comes opposite the opening 7, so that the side can be removed.
Patent GB-762618-A (GB)
Title: Apparatus for investigating profiles of articles
Inventor: CROOK WILLIAM CHARLES HERBERT
IPC: G01B5/20
Filed: 1954-05-26
Abstract: 762,618. Profile gauges. NAPIER & SON, Ltd., D. May 26, 1955 [May 26, 1954], No. 15575/54. Class 106 (2). A profile gauge comprises, a pair of supports 5 each provided with a plurality of coplanar parallel probes 7, means for urging the probes into engagement with the surface of an article 4 under investigation, means 9 for looking the probes in any position relative to the supports and means for moving at least one of the supports away from the other support so as to permit the article to be withdrawn from between the probes, and for returning the support to its original position, and optical projection apparatus arranged to project an image of the tips of the probes. A vertically-movable platform 1 carries a sliding carriage 3 to which a turbine blade 4 is secured. The blade is moved into a position between two supports 5 which incorporate rams 6 carrying probes 7. Compressed air is supplied through a pipe 17 to the support 7 causing the ram 6 to move towards the blade, and by means of a hole 12 causing the probes to press against the surface of the blade. Pipes 10 supply compressed air to a U-shaped channel 9 in the upper plate against which the probes 7 slide. Thus the probes are held by this pressure in the position they have taken up against the blade. One support 5 is retracted, the blade is removed and the support is returned to its former position. A beam of light from an optical system 18 throws on to a screen the form of the blade as reproduced by the probes, where it is compared with the correct profile. A spring 13 returns the ram to its inoperative position on release of pressure. By moving the platform 1 vertically the blade can be gauged at various cross-sections along its length.
Patent GB-975871-A (GB)
Title: Production of liquid copolymers of diolefins and other unsaturated monomers
IPC: C07C2/04
Filed: 1963-04-19
Abstract: Copolymers of a conjugated diene and a vinyl aromatic hydrocarbon are made by mixing at room temperature 75 to 85 parts by weight of a conjugated diolefin and 25 to 15 parts of a vinyl aromatic hydrocarbon, 100 to 500 parts of an inert hydrocarbon diluent boiling between -15 and 200 DEG C., 10 to 45 parts of a co-diluent being an open chain ether having 4 to 8 carbon atoms or a cyclic diether having 4 to 8 carbon atoms, heating the mixture to a temperature between 40 and 95 DEG C., adding 0.5 to 5 parts of an alkali metal catalyst and continuing the heating until substantially 100% conversion of the monomers to liquid polymers is reached. A C3 to C5 aliphatic alcohol may be used as a catalyst promoter. The diene may be butadiene, isoprene, dimethyl butadiene, piperylene, or methyl pentadiene. The aromatic monomer may be styrene or methyl styrene, and the ethers dioxane-1, 4, diethyl ether, diethyl acetal, vinyl isobutyl ether, dihydrofuran, tetrahydrofuran, or isopropyl ether.
Patent GB-256580-A (GB)
Title: Improvements in or relating to the production of highly porous clay material
IPC: C04B38/06
Filed: 1926-06-21
Abstract: 256,580. Lindman, E. I. Aug. 6, 1925, [Convention date]. Porous clay; concretes.-In the manufacture of a highly porous material for use for insulation purposes, or as an addition to concrete, quaternary, clay, is heated quickly to a temperature near its melting point, for example 1000‹-1050‹ C., and thereafter more slowly to a temperature at which the mass assumes a viscous consistency. The first stage may take place in a shaft furnace, and the second in a rotary furnace. The Specification, as open to inspection under Sect. 91 (3) (a) includes the use of any clay. It also states that the specific gravity of the product may be decreased by the addition to the clay of bog earth or the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-576731-A (GB)
Title: An improved hair curler
IPC: A45D2/12
Filed: 1943-09-23
Abstract: 576,731. Hair curlers. GUIDICE, S. L. Sept. 23, 1943, No. 15651. Convention date. Sept. 23, 1942. [Class 131] A curler comprises a body 1 circular in cross section and spool shaped, a shank 2 integral with the body and shaped in sectional outline to suit gripping means such as the tongs described in Specification 576,730, and a blade having a counterweight 7 and pivoted at 5. The tip of the tress is gripped in a groove 3 in the body by the blade 6 which is forced into the groove as succeeding coils are wound. The provision of the counterweight tends to keep the blade raised for the introduction of the tress.
Patent GB-770908-A (GB)
Title: Improvements in or relating to the treatment of gases containing titanium chloride
Inventor: GROVES JAMES DENNIS
IPC: C22B34/12
Filed: 1954-05-27
Abstract: Hot gases from chlorination of titanium-bearing materials are cooled before condensation by passage upwardly through an indirectly cooled bed of particles which are thereby fluidized. The gases may initially have a temperature of 500-1100 DEG C. and should be cooled finally to just above the condensation temperature of ferric chloride, e.g. to 250-300 DEG C.  Suitable solids for the bed are sand, or one or more of the reactants e.g. coke in the chlorinator; suitable particle sizes lie between 50m  and 5mm and a narrow size range is preferred. Indirect cooling may be provided by a jacketed chamber and/or by a cluster of tubes within the chamber.  Suitable heat exchange media are water, titanium tetrachloride and organic solvents, and gases, the latter preferably being assisted by suspending solids therein to form a fluidized bed.  It is preferred to locate the fluidized cooling bed above the chlorinator and a plurality of beds, preferably located vertically above one another may be employed. A horizontal series of beds may alternatively be used.  Suitable materials of construction are described.  Reference is made to cooling processes in which a static bed of solids is recirculated. Specifications 724,193 and 762,583 are referred to.
Patent GB-621014-A (GB)
Title: Improvements relating to gyro magnetic compass systems
IPC: G01C19/36
Filed: 1942-11-06
Abstract: 621,014. Electric condenses. SPERRY GYROSCOPE CO., Inc. Nov. 6, 1942, Nos. 15728 and 15729. Convention dates, Nov. 6, 1941. [Class 37] [Also in Groups XXXV and XXXVIII] In a capacity pick-off for signalling the position of a compass to a distance, the main moving plate 123 co-operates with four fixed plates 124 ... 127 and is controlled by magnets 257. A subsidiary moving plate 252 connected to the main plate electrically and secured so as to make an angle of 90 degrees with it, cooperates with adjustable tongues 255 connected to the fixed plates. A counterweight is provided at 251. Connection is made to the spindle by means of a cap 249.
Patent GB-170052-A (GB)
Title: An electric switch automatically operated by heat
IPC: H01H37/46
Filed: 1920-06-11
Abstract: 170,052. Bullen, A. G., and Jenkinson, R. L., (trading as Bullen & Co., A. G.). June 11, 1920. Automatic circuit-breakers; thermal switches, cut-outs, and interrupters. - Thermally - released switches for controlling the current supply to electrically heated laundering irons &c. are mounted within casings which form stands for the irons &c. A casing a is provided with a lid b, the lower side of which carries the switch mechanism. The switch comprises fixed contacts i, i<1> connected in a break in one of the supply leads, these contacts being adapted to be joined by an insulated bridging-contact m carried by a switch arm n pivoted at r. The thermal release consists of an aluminium strip or bar 6 secured at one end to the plate b, its free end carrying a pin 8 against which a spring 4 presses a latching-member z pivoted at 1. The upper end of the lever z is twisted and bent over in such a manner that it co-operates with the shaped end y of the lever m, retaining the switch closed against the action of the spring u. When the aluminium strip is heated above a predetermined temperature by conduction from the iron f resting upon the plate b, its expansion causes the pin 8 to move the latching-lever z to release the switch lever m, thereby breaking the heating circuit, a stop 15 being provided to limit the motion of the lever n. The switch may be re-closed by means of a handle x of the lever w secured to the switch lever n, the lever w projecting through an arcuate slot in the bottom of the casing a. Such a re-closure would be ineffective if the aluminium strip had not cooled down sufficiently to allow the latching- member to engage the end of the switch lever n. To prevent buckling of the aluminium strip, screws 11 pass into the plate b through elongated slots 16 at points along the bar 6. The leads from the supply and to the iron pass through the casing, entering and leaving by means of two pin plugs g, g<1> provided in the ends of the casing a.
Patent GB-668712-A (GB)
Title: Device for increasing chimney draught
IPC: F23L17/02
Filed: 1950-06-26
Abstract: 668,712. Chimney pots. BURGER, A. June 26, 1950, No. 15874/50. Class 25 A louvred chimney pot is provided with a roof-shaped weather protection cover 1 formed on its underside with a triangular portion 2 which projects downwardly into the uppermost louvre member 3 and has curved sides 6 forming continuations of the uppermost channels 7. The cover is removably supported in slots 4 in the member 3.
Patent GB-418017-A (GB)
Title: Improvements in or relating to collars for wear
IPC: A41B3/06
Filed: 1933-06-01
Abstract: 418,017. Collars for personal wear. ROGERS, Ltd., R. H. & S., and MANTLE, C. J., 9, Addle Street, Wood Street, London. June 1, 1933, No. 15883. [Class 141.] Collars are stiffened by a piece of cord 5 disposed in each front edge seam of the collar. This strip is capable of yielding in the direction of its length but is substantially less flexible than the fabric of the collar. The stiffener may extend the whole length of the front edges of the collar, or may terminate a short distance away from the collar band. The collar may be formed of a single layer of fabric with edges 2 secured by a tape 3.
Patent GB-529343-A (GB)
Title: Improvements in and relating to control arrangements for electric motors used to adjust regulators and the like
Filed: 1939-05-30
Abstract: 529,343. Control of A.C. motors between limits. FRIEDLANDER, E. May 30, 1939, No. 15890. Convention date, May 28, 1938. [Class 38 (iii)] An A.C. motor 1, driving a regulator &c. drum 3 is rendered inoperative at the limits of movement of the drum 3 by an armature 12 carried thereon closing the magnetic circuit of one or other of two open choke coils 10, 11 in circuit with the motor 1, and thereby reducing the current to the motor. The motor is controlled as to direction of running by a relay 9, and the chokes may be shunted by condensers so as to constitute rejecter circuits.
Patent GB-439056-A (GB)
Title: Improvements in the synthesis of phenol
IPC: C07C37/04
Filed: 1934-05-28
Abstract: In the preparation of phenol by monosulphonating benzene and hydrolyzing the product with alkali, the sulphonated benzene is obtained by reacting benzene with approximately the theoretical amount of sulphur trioxide in the presence of liquid sulphur dioxide as a diluent.  The benzene and sulphur trioxide are each dissolved in the sulphur dioxide and the solutions then run at approximately equal rates into a relatively large amount of liquid sulphur dioxide at atmospheric or higher pressure and at a temperature below the boiling point of sulphur dioxide under the pressure employed.  Examples are given.  Specifications 338,482, 338,483, 338,484, [all in Class 91], and 346,945 are referred to.
Patent GB-679409-A (GB)
Title: Improvements in mobile fabric trimming and waste collecting apparatus
Inventor: STOUT HAROLD EDGAR
IPC: D06H7/06
Filed: 1950-06-26
Abstract: 679,409. Trimming fabrics. TEXTILE TRIMMING & BOARDING MACHINE CO. June 26, 1950, No. 15927/50. Class 42 (i). A movable textile fabric trimming and waste collecting apparatus is characterised by a hand manipulated device provided with material clipping and waste removing means, means for holding the device in a determined position, driving means for operating the clipping and waste removing means, waste collecting means, and means arranged to support the driving means and the waste collecting means in relatively fixed position, the hand manipulated device being capable of limited movement relative to the driving and waste collecting means. As shown, a clipping device 2 is held in inoperative position in a spring clamp at the end of an arm 16 adjustably fixed by a set screw 17 to a post 15 secured to the top 8 of a table 1 mounted on castors 10 so as to be movable from place to place. Table 1 can be maintained in a desired position by placing plates 43 beneath the castors. The clipping means 19 of device 2 are driven by a flexible cable 23 connected to a motor 5 (not shown). A suction nozzle 20 is connected by a flexible conduit 21 to a waste receiving device 3 wherein clippings are collected in a removable receptacle 29; the casing 28 of device 3 is connected by a conduit 37 to a suction generating device 4 driven by a motor 25. Waste receiver 3, suction generator 4 (not shown) and motors 5, 25 are carried by table 1 on a shelf 11. In operation, clipping device 2 is withdrawn from the clamp and brought manually to a position for clipping surplus loops, threads, &c. from material or articles lying on table top 8 or held in the operator's hand. Alternatively, the device 2 may be held stationary in the apparatus and fabric moved against it for the trimming operation.
Patent GB-989372-A (GB)
Title: Improvements in or relating to aqueous dispersions
IPC: C08J3/07
Filed: 1961-05-02
Abstract: Aqueous dispersions of propylene polymers are prepared by dissolving the polymer in a substantially water-immiscible solvent, said solvent or its aqueous azeotrope having a boiling point below that of pure water, adding to the solution less than 20% by weight of an emulsifying agent (e.g. less than 5%) and less than 100% by weight of water, forming an emulsion of the resultant mixture and then removing (e.g. by reduced pressure or by steam distillation) substantially all of said water-immiscible solvent to form an aqueous dispersion of the propylene polymer, which dispersion may be concentrated by distillation or by creaming. The polymer may be polypropylene or a copolymer of propylene with monomers selected from ethylene, butene, isoprene, butadiene, piperylene and divinyl benzene, and may be prepared in the water-immiscible solvent used, e.g. as described in Specifications 821,971, 873,656, 873,657, 873,662, 873,663, 936,132 and 950,067. Preferred immiscible solvents are methylene chloride, chloroform, carbon tetrachloride, carbon bisulphide, benzene, toluene, xylene, cyclohexane, methyl cyclohexane, and paraffinic hydrocarbons.  The emulsifying agent may be anionic, cationic or non-ionic and of the many disclosed those exemplified are the potassium and sodium soaps of coconut oil fatty acids and disproportionated rosin acids, dodecylamine glycolate and hydrochloride, polyoxyethylene sorbitan monooleate and lauryl ether, ammonium and potassium oleates, and the sodium and ammonium salts of desoxycholic acid.  Optionally a water soluble organic solvent may be present; alcohols, glycols, ethers, ketones and aldehydes being specified. The dispersions may be compounded with curing agents selected from organic peroxides, quinones, sulphur, selenium, tellurium and their compounds, aminoplasts and phenoplasts. The latices find application for coating fibres, textiles, fabrics and paper.
Patent GB-562035-A (GB)
Title: Improvements in and relating to arched concrete constructions
IPC: E04B1/32
Filed: 1942-11-11
Abstract: 562,035. Arched concrete structures. WALLER, J. H. DE W., and BOWENCOLTHURST & PARTNERS, Ltd. Nov. 11, 1942, No. 15954. Addition to 545,334. [Class 20 (iv)] A structure formed of arched units of wave form in longitudinal section as described in the parent Specification is provided with tubular tension bars 10 extending longitudinally across the waves and tensioned by screwed nuts or wedges placing the structure in longitudinal compression. The bars are coated with bitumen or are wrapped with paper or cloth to prevent adhesion to the concrete. Tubular branches 13 extending into the structure serve as supports or conduits.