baber/WOPTO huggingface dataset:
Patent GB-585855-A (GB)
Title: Improvements in or relating to a holder for tubular electric lamps
IPC: H01R33/08
Filed: 1944-12-11
Abstract: 585,855. Mounting electric lamps in lanterns. COLE, Ltd., E. K., and HANAWAY, J. J. P. Dec. 11, 1944, No. 24747. [Class 75 (iv)] [Also in Group XXXVI] A holder for one end of a tubular electric lamp comprises a socket a partially rotatably secured in a bracket d and screw g to a frame f in turn attached to a mounting bracket q by two links o, p pivoted at each end. The terminals j, k of contact pins l slidable in the socket are engaged by the ends of a rocker bar i centrally pivoted on an extension h of the socket, said pins being maintained in contact with a lamp cap by means of a tension spring r. Two such holders may thereby adapt themselves to lamps of different lengths and the limited rotation of socket a accommodates a lamp whose cap contacts are not co-planar. The socket a is housed in an openmouthed box b supported on flanges f<1>, f<2>, f<3> on the frame f and having a slot n whereby it is slidable on the said flanges. According to the Provisional Specification one of the links o, p may be telescopic.
Patent GB-612497-A (GB)
Title: Improvements in driving gear for use with internal combustion engines
IPC: F01B9/06
Filed: 1946-08-20
Abstract: 612,497. Driving-gear. MELLORS, J. W. Aug. 20, 1946, No. 24754. Addition to 570,721. [Class 7 (ii)] The driving mechanism for an internal combustion engine according to the parent Specification is modified by mounting the eccentric disc 11 directly on the crank-shaft 16. The disc is formed with a single spoke 14 extending from the crank-shaft axis to the peripheral part of the disc and disposed at an angle of from 5 to 90 degrees in advance of the deadcentre position, Fig. 2.
Patent GB-651562-A (GB)
Title: Improved method of and apparatus for roasting ore
IPC: C22B1/10
Filed: 1948-09-22
Abstract: In a furnace for roasting mineral sulphides in gaseous suspension in which rabble arms move over the collecting and drying hearths, the <PICT:0651562/III/1> <PICT:0651562/III/2> <PICT:0651562/III/3> <PICT:0651562/III/4> drying chamber and hearth is located beneath the collecting hearths.  As shown, Fig. 6, mineral sulphide particles in gaseous suspension are roasted in the chamber 32 after being dried in a chamber 25 lying beneath the collecting hearths 34, 35, water-cooled rabble arms 40, 41, 42, mounted on the rotatable shaft 37 moving over the hearths 34, 35, and drying hearth 36.  In operation, the moist sulphide particles are conveyer-fed into the drying chamber 25 from the hopper 50, Fig. 8, and after being dried by hot combustion gases tapped from the combustion chamber 32 via the conduit 44, Fig. 9, are fed through opening 52, and the pipe 54 to the ball mill 21.  After grinding the material is carried in an air current generated by the air blower 26 through the classifier 22 to the separating cyclone from whence the air is returned to the blower circuit through pipe 57 and the particles dropped into the bin 62 for advancement by the conveyer 63 to an air injector 64 which is connected to a source of compressed air for injection into the burner conduit 66.  The combustion gases, after leaving the drying chamber 25 through piping 71, are returned to the burner circuit via the conduit 73 and fan 67, atmospheric air for supporting oxidation of the sulphide particles being drawn through the inlet 72.  Any excess air from the grinding circuit is tapped from the vent 58 and introduced to the burner circuit through the inlet 70.  The stream of suspended ore particles is introduced to the chamber 32 via the conduit 66, junction 68, conduits 76, 77, Fig. 7, and upwardly-inclined burner nozzles 74, 75.  Combustion gases collecting in the chamber formed between the collecting hearths 34, 35, are withdrawn through the outlet 82 and passed to a waste heat boiler and cyclone (not shown).
Patent GB-386598-A (GB)
Title: Improvements in and connected with means for illuminating billiard tables and the like
IPC: F21V7/05
Filed: 1932-09-06
Abstract: 386,598. Billiard table &c. lampshades. PERRY, A. W., 18, St. Nicholas Road, Brighton. Sept. 6, 1932, No. 24854. [Class 75 (ii).] A billiard table or like lampshade comprises a number of juxtaposed substantially rectilinear shades each provided with a source of light and. with light emission openings in their opposed sides for spreading their beams from one end of the table to the other, the lines of intersection of the beams substantially coinciding with the boundaries of the top of the table. In the form shown, the lampshade comprises a central shade 4 with trapezoidal openings 9 and accommodating a light source 2 and two symmetrically-disposed end shades 1<a>, 3<a> having trapezoidal openings 12 and accommodating light sources 1, 3, the outer walls 11 of the end shades being more steeply inclined than their inner walls 10 and all the shades being longer longitudinally than transversely of the table 15. The shades may be coupled together by hooks and eyes on their opposed lower edges.
Patent GB-1119888-A (GB)
Title: Process for improving the fullness and coherence of a synthetic filament
Inventor: DEKKER JAN
IPC: D01D5/00
Filed: 1967-05-30
Abstract: The surface of a filament, obtained by stretching a rod of foam of a thermoplastic polymer, which foam has a density before stretching not above 300 g/l, is fibrilated by passing it along one or more moving rolls provided with pins, needles or bristles; the fibrous filament so produced may be twisted to form a yarn.  This fibrillation treatment may be effected by cutting the filament into lengths and feeding to a carding machine, whereby staple fibre is produced. Staple fibre may also be made from the fibrillated filament by stretching it between pairs of rods, or by carding as above. Polypropylene, polyethylene and nylon are specified.
Patent GB-1142210-A (GB)
Title: Improvements in or relating to burners used in the manufacture of steel
Inventor: NEWBY MICHAEL WILLIAM
IPC: F23D17/00
Filed: 1965-06-12
Abstract: 1,142,210. Liquid fuel burner. G.K.N. STEEL CO. Ltd. 13 June, 1966 [12 June, 1965], No. 24913/65. Heading F4T. A liquid fuel/oxygen burner for use in steel making comprises a cylindrical body with a nozzle member 16, an annular passage 13 being supplied with oxygen and pipes 23 being supplied with fuel from main 25, said pipes 23 being disposed within a cooling water return passage 17, the oxygen passage 13 opens via divergent passages 20 into discharge orifices 21 formed in the peripheral side wall 22 of the nozzle member and a central cooling water supply pipe terminates in a divergent water space 14 ahead of the orifices 21. The fuel is supplied to the passages 20 inwardly of orifices 21 through nozzles 26 associated with non- return valves 24. The fuel pipes 23 are thermally insulated by air-tight enclosures provided by U-section covers 32 welded at their edges to the outer wall 18 of oxygen passage 13. In the embodiment of Figs. 3 and 4 (not shown), the passages (20) are of oval cross-section and are divided by a central web (29) in which liquid fuel passages (28) are formed which open into shallow ports (30) formed in wall (22). In the embodiment of Fig. 5, the oxygen and fuel discharge passages, arranged as in Figs. 3 and 4, terminate in the end face of a frusto-conical nozzle configuration.
Patent GB-856073-A (GB)
Title: Improvements in or relating to the purification of metals
Inventor: WRIGHT DAVID BRIAN
IPC: C22B35/00
Filed: 1958-08-01
Abstract: A process for removing volatile impurities from beryllium comprises powdering the beryllium under reduced pressure and heating the product at a temperature below its sintering temperature for a period sufficient to allow escape of the volatile impurities.  These impurities may be halogens, e.g. chlorine.  The size of the beryllium powder is preferably below 150 m .  The temperature may be between 700 DEG C. and 950 DEG C. and the reduced pressure below 10 m  of mercury.  A getter may be present in the furnace used for heating, e.g. uranium or titanium.
Patent GB-443581-A (GB)
Title: Apparatus and process for the rapid development of intermediate films for televisionpurposes
IPC: G03D3/13
Filed: 1934-08-30
Abstract: 443,581. Photographic developing machines and processes. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. Aug. 30, 1934, No. 24999. Convention date, Sept. 26, 1933. [Class 98 (ii)] The photographic film is passed under a yieldable roller before it enters the first developing tank, so as to form a compensating loop whereby the length of the film in the first developing tank may be varied without any change in the length of the film in the other liquid tanks. The tanks 2 are compartments of a large tank and the film is passed therethrough over idle rollers 17 and toothed drums 7 mounted on a cover plate 5. Before the film enters the tank 2 it is passed under a tensioning roller 13, over a toothed drum 7<1>, under a compensating roller 13a, and over a fixed idle roller 17. The roller 13a is connected to the roller 16 in the developing tank by a band 22 passing over a driving pulley and hand crank 19 so that the length of film in the developing tank can be varied. If the film also comprises a sound track, a heated reservoir 23 containing developer applies the liquid to the sound track by means of a brush or sponge 24 giving a constant development to the sound track. The liquid in the tanks is heated by baths 3, the film being dried in a chamber 18 heated by a current of hot air from a fan coupled to a motor 9. In order to determine the required length of immersion of the loop in the developing liquid for any particular film, the light intensity ratio for the darkest and lightest parts of the scene photographed is determined photometrically during the taking operation, and from previouslydetermined curves showing the relation between development, light intensities, and the blackening of the film, the time of development is obtained. The loop 21 of film is then adjusted by the hand crank 19 to a length corresponding to the required time. In establishing the relation between development and the light intensity ratios, several strips of film are exposed under a grey wedge and developed until the minimum blackening is due to fog. Curves are drawn for a variety of development times.
Patent GB-178384-A (GB)
Title: Appliances for playing indoor games
IPC: A63F9/10
Filed: 1921-09-21
Abstract: 178,384. Phipp, F. W. Sept. 21, 1921. Dominoes and the like.-A game appliance comprises fifty-six pieces of wood, bone, or ivory of triangular or other shapes, bearing numerals from one to fifty-six. When assembled, the pieces form a sixteen-pointed star. In playing the game, the pieces are shuffled and divided equally between the players, who play the pieces according to rules, the winner being the player who succeeds first in placing the whole of his pieces. A four-pointed star is provided for use when the game is played by three players.
Patent GB-443781-A (GB)
Title: Infinitely variable epicyclic gearing
IPC: F16H61/02
Filed: 1934-08-31
Abstract: 443,781. Hydro-mechanical variablespeed gearing. SPALDING, J. H., Lynwood, Rockshaw Road, Merstham, near Redhill, Surrey. Aug. 31, 1934, No. 25044. [Class 80 (ii)] Variable - speed gearing comprises a three-element spur epicyclic train 3, 4, 5 and an hydraulic coupling with vane elements represented at 9, 10, one of which, such as 10, screws away from the other, such as 9, so as ultimately to reduce the speed of a driven shaft 15. The sun gear 3 is fast on a driving-shaft 2 and the planets 4 are carried by the coupling member 9, which is fast on the shaft 15. The annulus 5 is loose on the shaft 15 and is rigid with a boss 23 formed as a helix upon which the other coupling member 10 screws. A spring 12 normally holds the hydraulic coupling at its tightest with the member 10 against a stop flange 11 on the boss 23. During drive, the annulus 5 would spin freely backwards if it were not prevented. The member 9 drives the member 10 forwardly, and this carries the annulus 5 with it, so that the gearing turns solid, or forwardly on lower gear with the annulus 5 slipping backwards. The torque on the hydraulic element 10 tends to screw it on the boss 23 against the spring away from the element 9, so as to increase the slip in the coupling and so reduce the speed of the shaft 15. A balance is set up with the speed varying automatically. In the form shown, means are provided for preventing continued reversed rotation of the annulus 5, so that there is a definite minimum speed transmitted by the train 3, 4, 5. The annulus 5 has a boss 24 with a helix 24<1>, and upon that a loose nut 17. When the annulus 5 starts rotating backwards, the nut 17 lags behind by inertia and screws outwards so that teeth 25 upon it engage fixed teeth 33. This prevents the annulus 5 from turning backwards farther while permitting it to turn forwards as part of the automatic speed changing. To effect reverse driving, a dog sleeve 16 loose on the shaft 2 is slid to the right. A flange 32 upon the sleeve 16 carries the nut 17 out of engagement with the fixed teeth 33 which are then engaged by teeth 34 on the sleeve. The sleeve 16 which is thus immobilized then engages with dogs 31 like dogs 30 on a relatively large and loose sun gear 7 which meshes with step planets 4<1>. The stepped planets 4, 4<1> roll backwards on the gear 7 forcing a reversed drive upon the shaft 15. An hydraulic engine clutch is preferably used.
Patent GB-790510-A (GB)
Title: Improvements relating to the recovery of ammonia from gases
IPC: B01J39/00
Filed: 1955-09-01
Abstract: <PICT:0790510/III/1> In a process for the selective recovery of ammonia values from gases which also contain weak acids, e.g. carbon dioxide, hydrogen sulphide, and/or hydrogen cyanide, the gases, after removal of suspended impurities, e.g. tar, and entrained solid particles, are passed at a temperature exceeding the dissociation temperature of the volatile ammonium compounds contained therein, e.g. above 60 DEG  C. through a vessel containing a cation exchange material in the form of a porous exchange mass, and the adsorbed ammonia values are recovered during regeneration of the exchange mass after discontinuance of the gas flow.  The gas from 1 passes through filter 2 to remove tar and mists and is cooled in tower 3 to about 65 DEG  C.  The cooled gas passes through cation exchanger column 5 where ammonia is adsorbed by less than 30 seconds contact.  The cation exchange mass may be styrenemethacrylate resin or sulphonated copolymer of styrene and divinylbenzene and several exchange columns may be used.  The ammonia-free gas passes by 14 through anion exchanger column 15, where H2S and HCN are adsorbed, and residual gas, presumably containing CO2, leaves at 15a for further processing. Condensates from 3, 5 are passed through 3a, 5a to separator 6, where tar is withdrawn at 7, and the collected aqueous condensates are either returned to the hot gas through 20, or passed through 20a to stripper 8. Sulphuric acid to regenerate ion exchanger in 5 is drawn from tank 13 and the acid solution of ammonium sulphate, after repeated use, is drawn from tank 12 to saturator 11.  Strong ammonia water to regenerate ion exchanger in 15 is drawn from tank 16 and the solution of ammonium sulphide, or hydrosulphide, and/or ammonium cyanide, after repeated use is drawn from tank 17 to stripper 8, where it is steam distilled with the condensates.  The distillate is withdrawn at 9 to waste, or as washing liquid.  The distilled vapour mixture is led into saturator 11, where ammonia combines with excess acid to produce saturated ammonium sulphate solution, while the gaseous acids are withdrawn at 19 to sulphur or HCN recovery or to sulphuric acid processing.  Alternatively, the cation exchanger may be regenerated with hot water and/or steam to produce ammonia gas. In all cases the cation exchanger is washed after regeneration with water as cold as possible to bring the ion exchanger to a temperature substantially below the entry temperature of the gas.  Alternatively, the cation, or anion exchanger, may be regenerated by electro-dialysis to produce ammonia gas, or gaseous H2S and/or HCN. The cation or anion exchange masses may be fluidized or eddying layers.  The aqueous condensates may, alternatively, be contacted with a cation exchanger.
Patent GB-655807-A (GB)
Title: Improvements in or relating to the heat treatment of high speed steels
IPC: C21D9/22
Filed: 1948-09-27
Abstract: In a method of heat treating high-speed steel, the steel is quenched from the primary hardening temperature to a temperature between room temperature and that at which the austenite-martensite transformation begins and then heated, without cooling, to a tempering (or softening), temperature between that of the quenching bath and that of secondary hardening for a time sufficient to cause softening but insufficient to produce isothermal changes or secondary hardening on cooling to room temperature.  The steel may then be subjected to a secondary hardening treatment.  The quenching bath temperature may be between 80 DEG C and 118 DEG C, the tempering (or softening) temperature between 250 DEG C and 450 DEG C, and the secondary hardening temperature between 510 DEG C and 620 DEG C.  Secondary hardening may be a cyclic or multiple process.  Various methods are given for finding the most effective quenching bath temperature.  It is stated that before secondary hardening the steel is in a soft condition and may be easily straightened or stored without risk of breaking or distortion.
Patent GB-518436-A (GB)
Title: A device for finely cutting clay or the like into small discs and shells
IPC: B28B3/22
Filed: 1938-08-26
Abstract: 518,436. Cutting, extruding and de-airing clay &c. REISSMANN, K., and REISSMANN, E. Aug. 26, 1938, No. 25155. Convention date, Jan. 5, 1938. [Class 87 (ii)] In devices for cutting clay or the like into thin discs or parings, a cutting drum comprising wires f extending between spaced rotatable discs e is provided in co-operation with an extrusion mouthpiece d the rim whereof is shaped to conform with the curved path of the drum. The wires f are disposed at equal radial distances from the axis of rotation. The cutter may be disposed in a vacuum chamber c between extrusion worms a, b. The cut particles are thrown by the cutter into the worm b. Alternatively, the cutter may be provided at the end of a pug mill worm, being enclosed by a cover not forming a vacuum chamber.
Patent GB-1060766-A (GB)
Title: Leather substitute product and method of manufacturing same
IPC: D06N3/00
Filed: 1964-06-18
Abstract: A laminate used as a leather substitute comprises a layer of textile material and a plastics layer made porous by projection of fibres of flocked tissue therethrough, by vibratory electrostatic or other means.  A layer of P.V.C. foam may be included between the textile and the flocked layer or between a flocked surface layer and a similar layer adhered to the textile base.  The fibres of the flocked layer or layers may be animal, vegetable, mineral or synthetic, the plastics layer may be of plasticized P.V.C. or of a composition containing a P.V.C./P.V. acetate copolymer, an acrylic or polyurethane resin and a ketone solvent, and the foam layer of plasticized P.V.C.  The layers may be formed by direct successive coating or coating on a support from which they are subsequently stripped.
Patent GB-924300-A (GB)
Title: Polymerisation process
Inventor: PERRINS LYLE EUGENE
IPC: C08F14/06
Filed: 1960-07-20
Abstract: Vinyl chloride is polymerized alone or with vinyl acetate in aqueous medium in the presence of at least 0,02% by weight of the monomer or monomers of a cetyl quaternary pyridinium compound. Any of the usual catalysts and polymerization aids may be used. In the example, the catalyst was hydrogen peroxide and a silicone antifoam agent was used.  Cetyl pyridinium bromide was the emulsifying agent for a copolymer of vinyl chloride and vinyl acetate.  The mixed monomers were fed in at constant pressure and the pyridinium compound added dropwise.  When polymerization was finished further pyridinium compound was added.  The products have useful antistatic properties and may be made into gramophone records.
Patent GB-870267-A (GB)
Title: Tank for storing low temperature liquids in ambient surroundings
Inventor: RAE RANDOLPH SAMUEL
IPC: F17C3/10
Filed: 1957-08-09
Abstract: 870,267. Storing liquefied gases. GARRETT CORPORATION. Aug. 9, 1957, No. 25286/57. Class 8(2). The space between inner and outer walls 5, 6 of a liquefied gas e.g., hydrogen container of cylindrical form is occupied by an insulating layer 19 surrounding and adjacent the wall 5 and an insulating member 16 surrounding the layer 19 and having on its inner face parallel grooves 17 connecting headers 22, 23 at the ends of the container and through which is circulated by a blower 40 cold gas withdrawn from above the liquid level 30 through an aperture 31 in the wall 5 and insulating layer 19, the member 16 also having on its outer face parallel grooves 18 adjacent the inner face of wall 6 and connecting headers 28, 29 at the container ends through which is circulated by a blower 53 a warm gas whereby frost is prevented from forming on the outer face of the container wall 6. The blower 40 withdraws hydrogen gas from header 23 through ducts 34, 35, a pass 37 of a heat exchanger 38 having a path 43 traversed by liquid hydrogen which is thereby vaporized and discharged through a supply line 44, and a duct 39 leading to the header 22. The warm gas blower 53 draws hydrogen gas from header 29 through a duct 48, path 50 of a heat 'exchanger 51 warmed by engine exhaust gas traversing a path 54, and the so warmed hydrogen traverses a duct 52 leading to the header 28. An alternative or supplementary supply of warm gas to path 54 of exchanger 51 comprises combustion products of a furnace 59 supplied with hydrogen gas through a duct 62 branching from duct 52 and with oxygen through a duct 60. A relief valve 66 in duct 48 allows venting of the gas space of the container to atmosphere through a duct 43, packing 47 and the duct 48. Specifications 870,265 and 870,269 are referred to.
Patent GB-1105977-A (GB)
Title: Light-sensitive compositions for photomechanical purposes
Inventor: SEIDEL BERNHARD
IPC: C08G59/40
Filed: 1965-06-15
Abstract: Light sensitive polymers of olefins having substituent azidosulphonyl groups attached to aliphatic carbon atoms may be prepared by reacting chlorosulphonated olefin polymers with sodium azide.  Specified polymers are polymers of ethylene, propylene and butadiene, and copolymers thereof with vinyl acetate, acrylic and methacrylic esters and nitriles, styrene, vinyl chloride and vinylidene chloride.  The polymers may be coated, optionally in admixture with other polymers and sensitizers, on metals, paper and plastics, and selectively exposed to form resists.  Specified other polymers are polymers of butadiene, isoprene, norbornadiene, cyclopentadiene, vinyl acetate, vinyl alcohol, ethylene, styrene, acrylic and methacrylic esters, amides and nitriles.  The preparation of a polychloroethylene sulphazide by reacting chlorosulphonated polyethylene with sodium azide is described, and resists are prepared from (1 and 2) polychloroethylene sulphazide in admixture with (3) an ethylene/ vinyl acetate/norbornadiene copolymer and (4) polyisoprene or purified natural rubber.