baber/WOPTO huggingface dataset:
Patent GB-459972-A (GB)
Title: Process for the production of rubber articles from rubber dispersions
IPC: D01F2/28
Filed: 1935-12-19
Abstract: Lipins or sterols (e.g. wool grease) or mixtures thereof in proportions up to 10 per cent, are added to latex containing more than 45 per cent of rubber, from which articles are to be made, e.g. by dipping.  The formation of films, bubbles and foam in the latex is thereby avoided during working.  Hydrocerin, containing cholesterol and lipins, and Boerocerin, which is a mixture of pure cholesterol and Hydrocerin may be used.  The lipins &c. should preferably be dissolved in fats or oils, e.g. rape seed oil or petroleum jelly, emulsified with water or a liquid miscible with water, and the resultant emulsion is added to the latex.
Patent GB-1074148-A (GB)
Title: Improvements in or relating to optical maser systems
IPC: H01S3/104
Filed: 1964-08-28
Abstract: 1,074,148. Lasers. SIEMENS A.G. Aug. 28, 1964 [Aug. 29, 1963], No. 35262/64. Addition to 1,061,613. Heading H1C. To overcome the so-called " hole burning effect " in the profile of radiation intensity distribution with respect to frequency of a laser, the active medium is subjected to an alternating magnetic or electric field the periodic time of which is less than the natural levelling out time constant of a profile indentation or " hole burning " when the cause of the indentation is removed. According to the Specification " hole burning " is attributed to a reduction of the number of the atoms or molecules capable of emitting quantum energy at the frequency of profile indentation as compared with the total of atoms or molecules in the excited state. Use of the alternating field avoids profile indentations by producing frequency shifts due to the Zeeman or Stark effects. As shown in Fig. 1, an alternating electric field due to a source 10 is produced by at least two ring electrodes in a tube 1, a helium-neon active medium being enclosed in the tube which is positioned between cavity reflectors 2, 3. A frequency of at least 1 Mc/s. is used. The arrangement may be applied to the laser of the parent Specification, Fig. 2, by a suitable choice of frequency for the alternating electromagnetic field passed along the spiral delay line. By altering the field strength of the alternating field modulation of the output beam may be produced.
Patent GB-325845-A (GB)
Title: Improvements in or relating to plugs or the like for tobacco pipes and cigar and cigarette holders
IPC: A24F9/00
Filed: 1928-11-30
Abstract: 325,845. Arthrell, H. J. Nov. 30, 1928. Tobacco pipes and cigar and cigarette holders.-A plug for a pipe or a cigar &c. holder consists of a diaphragm 10 of non- absorbent material (such as hard wood, porcelain, clay, meerschaum, or fire-resisting glass) having a ring of perforations 11 and a slot 12 extending through the diaphragm at its centre for engagement by a tool for inserting and removing the plug. The faces of the plug are recessed at 13, 14, the recess 13 facilitating the insertion of the T-shaped end 22 of the tool shown in Fig. 5. A coil spring 23 on the stem of the tool is compressed by an abutment bearing against the upper face of the plug and the tool is turned so that the end 22 lies across the slot.
Patent GB-1118315-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B25/12
Filed: 1965-08-18
Abstract: <PICT:1118315/C4-C5/1> In a door assembly for horizontal coke ovens of the kind in which when closed the weight of the door causes horizontal pressure to be applied by the door to the door frame, one door locking member 32 only is provided, midway between the top and bottom of the door, and the member 32 connected to a static pressure distribution system 33 . . . 35 to distribute the horizontal pressure to the upper and lower portions of the door.  The member 32 is a bar which engages hooks 20 at each side of the frame, see Fig. 9 (not shown) and which is rigidly attached at each end to bars 33, 34 which, with a bar 35, are connected to the door through plates 36, 37, see Fig. 7 (not shown).  In a modification, Figs. 1 to 5 (not shown) the bar 32 is pivotally attached by arms at each end to a rod rotatable in bearings in a pair of parallel, vertical plates which are perpendicular to the plane of the door and spaced from the door, being connected to the door only through pressure plates corresponding to 36, 37.  The positions of the hooks 20 and bar 32 may be reversed, i.e. the hooks may be on the door and the bar on the frame.
Patent GB-286210-A (GB)
Title: Method of treating waste liquor
IPC: D21C11/04
Filed: 1927-12-31
Abstract: 286,210. Euromerican Cellulose Products Corporation, (Assignees of Dorner, B.). Feb. 28, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Alkali-metal compounds, recovering from liquors containing organic matter. - Waste liquors from soda processes for making cellulose from maize or other straw, wood &c. are treated to separate organic matters in a form suitable for making animal foods or for fermentation to produce alcohol &c. by treating with carbon dioxide or purified flue gases until the liquor is not alkaline to litmus and boiling the liquor to concentrate it and cause precipitation of organic matter. A further or a more complete precipitation may be effected by treating the liquor after cooling with carbon dioxide, preferably under pressure. Specification 283,851, [Class 5 (ii), Housing &c. animals], is referred to.
Patent GB-203977-A (GB)
Title: Improvements in the manufacture of horseshoes with rope insertion
IPC: B21K15/02
Filed: 1922-12-30
Abstract: 203,977. Bloxam, A. G., (Rostock, F., and Paap, M.). Dec. 30, 1922. Bending horseshoes; mandrels. - Horseshoes having a channel of U-shaped cross-section in which rope is inserted are formed from a bar of rolled iron 1, Fig. 3, the part 2 which is to form the outer side being higher and thicker than the part 3 forming the inner side, so that when bent to horseshoe form both sides are of the same height and thickness except at the two ends. To maintain the shape of the cross-section of the bar during the bending process, a chain of links, Fig .7, is inserted therein, the links having the stepped form shown in Fig. 9, and being connected by a metal rope passing through holes 13, 14. The bar with the chain inserted is placed in an angle-iron carrier 48, Fig. 16, and one end is secured between a bending member 24 and a toothed co-operating member 27, which members are carried by a disc 23 driven in the direction of the arrow. The downward tilting of the angleiron 48, as it is fed forward over the roller 39, is limited by a rail 45, and another roller on a pivoted carrier holds it against the disc 23.
Patent GB-523473-A (GB)
Title: Improvements in and relating to supporting means for fluorescent screens for x-ray and like purposes
Filed: 1938-12-06
Abstract: 523,473. Rontgen-rayapparatus. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. Dec. 6, 1938, No. 35526. [Class 98 (i)] A fluorescent screen for X-ray and like purposes is connected by a single pivotal connection at one edge to a supporting arm which is carried by a vertically movable base member and is rotatable with respect to it about a horizontal axis and a second axis perpendicular to the first. In the apparatus shown, the screen 1 has a pivotal connection 2 at one side to a bent arm 4, the reduced cylindrical end 6 of which is rotatably mounted in ball bearings in a socket 7, which is itself rotatable in ball-bearings about an axis perpendicular to that of the part 6 on a carriage 9 vertically adjustable on a trackway 10. A plunger slidable in a diametrical bore 14 in the end 6 of the arm engages a stop (not shown) on the socket 7 to prevent movement of the arm below the horizontal, but may be disengaged to move the arm below this position. Control levers 16 for the X-ray tube and for functions such as shutter diaphragm control are carried on an extension 15 of the screen arm. The means for locking the carriage 9 described in Specification 523,472 may be incorporated.
Patent GB-503441-A (GB)
Title: Improvements in vehicles with several axles
IPC: A61L2/00
Filed: 1937-12-22
Abstract: 503,441. Road-vehicle undercarriages. AUTOMOBILESINDUSTRIELS LATIL. Dec. 22, 1937, No. 35537. Convention date, Jan. 15. [Class 108 (ii)] In a vehicle with three or more axles and in which the frame rests by supports, pivoted thereon, on springs bearing on the axles, the driver may immobilize the supports with respect to the vehicle frame, enabling the vehicle to pass over trenches and other obstacles. In the Figure, the frame 3 is supported on leaf springs 4, 5 on the axles 1, 2 by pivots 6, 7 at one end of each spring, and by pivots 10, 11 connected by levers 8, 9 and links 6a, 7a to the other ends of the springs. The levers 8, 9 are connected by a link 12 which is normally free to move longitudinally, allowing opposite vertical movements of the axles, but which may be immobilized by. a hook 14 movable by a lever 17 to engage between stops 16 on the link 12. In Fig. 3 (not shown) the pivot 6 is at the other end of the spring 4, and the levers 8, 9 are replaced by a swinging beam. In Fig. 5 (not shown) the frame rests on the middle of a leaf spring common to the two axles 1, 2.
Patent GB-301737-A (GB)
Title: Improvements in automatic air compressors
IPC: F04B49/02
Filed: 1928-12-03
Abstract: 301,737. Parant, J. Dec. 3, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Actuating pumps by fluid-pressure motors.-Motor pistons b<1>, b<2> are actuated by vacuum such as that existing in the inlet pipe of an internal combustion engine; they are mounted on cylinders c<1>, c<2> enclosing fixed pistons c<1>, e<2>, and reciprocate the cylinders in which compression takes place, the air entering through ports in the pistons e<1>, e<2> and passing out through valves in a box z which separates the compression spaces. A slide valve r effects the distribution of air to the motor and the compressor cylinders, controlling vacuum and air inlet ports i, k<1> and passages d<1> leading to the compressor cylinders. The valve is held in one position during each stroke by spring- pressed catches n<2>, Fig. 3; at the end of the stroke a motor piston b<2> pushes a rod p<2> which releases the catch allowing a spring m<2> on a rod passing loosely through the valve to flick the valve over till it is held in the other position by the corresponding catch.
Patent GB-1119229-A (GB)
Title: Method for the production of halogenated ethylenes containing bromine and iodine
Inventor: OPPEGARD ASBJORN
IPC: C07C17/02
Filed: 1965-08-19
Abstract: Ethylenes halogenated with Br, I or a mixture selected from C1, Br and I, are prepared by passing acetylene through an aq. cupric halide solution (containing up to 50 mol. per cent cupric halide) at not less than 60 DEG  C. and a pH of 0-3, the pH value being measured with a glass electrode on a sample of the reaction solution diluted with an equal part of distilled water.  Specified main products are: C2H3Br, C2H2Br2, C2Br4, C2H2BrCl, cis-C2HBrCl2, cis-C2HBr2Cl, C2H2ClI and cis-C2HC1I2.
Patent GB-823006-A (GB)
Title: Improvements in or relating to propulsion systems for helicopters
IPC: B64C27/18
Filed: 1957-11-18
Abstract: 823,006. Helicopters. SHEPHERD, G. R. (Westinghouse Electric International Co.). Nov. 18, 1957, No. 35810/57. Class 4. In a helicopter rotor comprising a propulsion unit mounted at the tip of each blade, each unit including rotating masses subject to gyroscopic reaction forces tending to alter the attitude of the propulsion unit, means are provided for applying a force to the unit in opposition to the gyroscopic forces, the magnitude of the opposition force being varied in accordance with changes in the rotative speed of the rotating masses. The invention is described for a two-bladed rotor wherein each blade 14 which is mounted for conventional pitch-changing and flapping movements, comprises a spar 13 formed at its tip with a yoke 21 which supports a gas turbine engine 19. The engine carries rearwardly extending arms 32 which terminate in brackets 33 forming pivots for a control surface 31 located in the stream for propulsion gases from nozzle 26. The surface 31 has an arm 34 connected by a link 35 to a power element 36 which is controlled by an engine fuel control unit 37 adjusted by the pilot through a linkage 39 to vary the fuel supplied to the engine (and thereby the engine speed) from a fuel line 38. The rotating compressor and turbine of the engine exert gyroscopic forces which apply a positive pitching moment to the engine and this is counteracted by increasing the incidence of surface 31 with an increase in fuel supply whereby the surface, through arms 32, applies an opposing negative pitching moment to the engine. The adjustment of the surface may be made responsive directly to the speed of rotation of the engine or to twisting stresses applied to the spar 13.
Patent GB-633708-A (GB)
Title: Diaphragm reciprocating pump for corrosive or other liquids
IPC: F04B43/067
Filed: 1946-12-03
Abstract: 633,708. Diaphragm pumps. LLOYD, C. F. Dec. 3, 1946, No. 35833. [Class 102(i)] A diaphragm pump 41 is actuated by a hydraulic link reciprocated by a piston 26. The piston 26 is actuated by an eccentric and a valve 20 is operated by levers 29, 36 to open the liquid link to the tank 18 to stabilize the pressure in the link. The fulcrum 30 is adjustable so that the stroke of the diaphragm 43 may be varied. A relief valve 17 is fitted.
Patent GB-1134434-A (GB)
Title: Crash pads and other padded trim for vehicles
Inventor: GRIEVE ROBIN LESLIE
IPC: B29C44/04
Filed: 1966-08-10
Abstract: 1,134,434. Moulding padded vehicle trims. PRESSED STEEL FISHER Ltd. 9 Aug., 1967 [10 Aug., 1966], No. 35848/66. Heading B5A. A crash pad, fascia top or other padded trim for a vehicle is made by foaming a microcellular resilient urethane foam precursor in a mould having portions maintained at different temperatures. The mould is arranged so that the exposed face of the fascia top is moulded at a high temperature (relative to the other end of the mould) forming a thin soft skin and the back of the fascia top is moulded at a low temperature forming a thick hard skin. In the example the mould is in two thermally insulated halves, one heated to 30-50‹ C. and the other cooled to 0-10‹ C. The urethane foam precursor may contain a polyether polyol or polyester polyol.
Patent GB-301837-A (GB)
Title: Process and apparatus for utilising waste heat for refrigerating purposes
IPC: F25B27/02
Filed: 1928-12-06
Abstract: 301,837. Kemmer, H. Dec. 6, 1927, [Convention date]. Refrigerating, absorption machines and processes for.-The waste heat from gasworks, cokeries, &c. is utilized to heat the generator of an absorption refrigerating machine, and the cold produced is applied either to the manufacture of ice or to separate, by cooling, the tar &c. in the gas. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a gas-plant in which the waste gas passes from the plant a through the flue e to the generator g, the evaporated ammonia vapour passing in turn through a rectifier, a heat-exchanger k, and a condenser l to a cooler 1 through which circulates the brine from the ice-making machine 7 and the gas cooler 8. The liquefied ammonia flows from the cooler 1 to the evaporator 2 and the evaporated ammonia passes through the heat-exchanger 3, through which weak liquor flows, to the reabsorber 4 from which the strong liquor passes to the heat-exchanger 5 and thence to the cold generator 6. The brine circulates through the evaporator 2, ice-making machine 7, and gas cooler 8 to the cooler 1 and thence to the cold generator 6 and back to evaporator 2. This subject-matter does not appear in the Specification as accepted.
Patent GB-468368-A (GB)
Title: Cellulose derivative coating compositions and articles coated therewith
IPC: C09D101/18
Filed: 1935-12-31
Abstract: A coating-composition for the moisture-proofing of regenerated cellulose and other water-swellable sheet material, &c., comprises a cellulose derivative, a plasticizer, a volatile organic solvent which is immiscible with water and includes a constituent which is immiscible with water, a small proportion of water and a small proportion of an hydrophilic colloid which is insoluble in the organic solvent and is colloidally dispersed in the mixture of cellulose derivative, plasticizer and organic solvent. Nitrocellulose is a suitable cellulose derivative; examples of hydrophilic colloids are starch, gelatine, dextrine, agar, casein and water-soluble gum-resins; to the composition may also be added substances such as wax, gums, resins, oils, chlorinated rubber, chlorinated diphenyl, pigments &c.  Suitable relative proportions of the main constituents are: cellulose derivative 30--80 parts, plasticizer up to 40 parts, water 5 parts, hydrophilic colloid 2 parts, together with up to 5 parts of wax. In an example, nitrocellulose, acetanilide benzoyl benzoic acid, dibutyl phthalate, ethyl benzoyl benzoate, blown oil, oxidized ester gum, and paraffin wax are made into a solution in butyl acetate, ethyl acetate and toluene; to the solution is added in small quantities at a time with vigorous stirring, a water solution of gelatine, starch or gum arabic; the dispersion may be finally filtered to remove the coarser particles.  On drying, the composition leaves a transparent non-tacky coating. Specifications 233,367, [Class 2 (ii)], and 404,933 are referred to.ALSO:By mixing together a cellulose derivative, a plasticizer, a volatile organic solvent which is immiscible with water or includes a constituent which is immiscible with water, a small proportion of water and a small proportion of an hydrophilic colloid which is insoluble in the organic solvent, there is obtained a coating composition in which the hydrophilic colloid is dispersed in the solution of the cellulose derivative &c. Nitrocellulose is a suitable cellulose derivative; examples of hydrophilic colloids are starch, gelatine, dextrine, agar, casein, and water-soluble gum-resins.  In an example, nitrocellulose, acetanilide, benzoyl benzoic acid, dibutyl phthalate, ethyl benzoyl benzoate, blown oil, oxidized ester gum and paraffin wax are made into solution in butyl acetate, ethyl acetate and toluene; to the solution is added in small quantities at a time with vigorous stirring, a water solution of gelatine, starch or gummalic. The dispersion so obtained may be finally filtered to remove the coarser particles.
Patent GB-899012-A (GB)
Title: Improvements in gas scrubbers
Inventor: WRIGHT ROBERT DAVID
IPC: B01D47/10
Filed: 1959-10-28
Abstract: 899,012. Centrifugal separators. ALTA CORPORATION PROPRIETARY Ltd. Oct. 28, 1959, No. 36510/59. Class 23. [Also in Group XII] A Venturi-tube type scrubber has an elongated throat portion 1 of rectangular cross-section and, for removing water and wetted dust particles from the scrubbed gases, a centrifugal separator comprising, a curved conduit 2 of rectangular and gradually increased crosssection leading tangentially into a vortex chamber 3, and an upper chamber 4 with a gas outlet 5 having a flared rim 19 extending a short distance into the chamber 4. Water is sprayed into the gas in the throat portion 1 from the two vertical sides thereof and sludge is removed from the sump 16 of the chamber 3.
Patent GB-1035130-A (GB)
Title: Evaporator for concentrating radioactive solutions
Inventor: AUCHAPT PIERRE
IPC: G21C19/40
Filed: 1964-09-07
Abstract: 1,35,130. Evaporators for concentrating radio-active solutions. COMMISSARIAT A. L'ENERGIE ATOMIQUE. Sept. 7,1964 [Sept. 19, 1963; Jan 30, 1964], No. 36539/64. Heading B1B. An evaporator for concentrating radio active solutions, e.g. a solution of a plutonium salt, comprises a vessel 202 connected by branch-tubes 216 and 222 to an external heater 220 of the rising- film type. The boiling solution enters the vessel 202 tangentially through branch 222, the separated vapour flows out of the top of the vessel, and the liquid is returned to the heater through branch 216. Liquid droplets are removed from the vapours rising up vessel 202 by means of Raschig rings made of glass comprising B2O3. There may be four heaters, each containing three electric immersion heaters 228. The bottom of vessel 202 is connected to branch-tubes 216 by a vertical annular tube 204. The solution-to-be-concentrated is introduced into the apparatus through pipe 212; and the concentrated solution is withdrawn through conduit 226, and means may be provided for regulating the level of the solution in vessel 202. The vapours pass from the top of vessel 202 into cyclone separator 234 where any residual liquid droplets are separated. This liquid is returned to the evaporator through pipes 238 and 212. The dry vapours leaving the cyclone are conducted to condenser 242. In order to absorb neutrons and gamma radiation, blocks of cadmium or polythene 250, 252 are disposed as shown. Provision may be made so that the apparatus is automatically made inoperative if crystallization occurs in the solution.
Patent GB-765663-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H51/22
Filed: 1952-12-05
Abstract: 765,663. Electromagnetic relays. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and CANDLER, J. E. Dec. 1, 1953 [Dec. 5, 1952], No. 36561/55. Divided out of 765,661. Class 38(5) A relay comprises a core 41 energized alternately by coils 42, 43 and an armature 44 pivoted at 51, the armature comprising a permanent magnet 49 having vertical magnetic axis held between two magnetic members 47, 48. Energization of one of coils induces such a polarity in the core poles 45, 46 that armature ends 52, 53 are repelled and ends 54, 55 attracted, and the armature changes over to its other position in which it is again held by the permanent magnet when the coil is de-energized. Energization of the other one of the coils produces an opposite polarity in the poles 45, 46 so that the. armature is returned to the initial position. Movement of the armature operates a set of contacts, not shown. A further contact set (not shown) is operated by a further armature 56 pivoted at 57 to move between the core 41 and a pole piece 59 connected to the core through a permanent magnet 61 having a vertical magnetic axis. When the coils 42, 43 are not energized the armature 56 is magnetically held in the position shown. Energization of the one of the coils produces a field through the core 41 in the same direction as the magnet 61 and the armature 56 is not moved. Energization of the other coils however, produces an opposite field so that the armature is attracted to the core and is then released to be held by the pole piece 59 when that coil is de-energized. In a modification (see the drawing accompanying the Complete Specification, not shown) a single operating coil is provided energized alternately in opposite' directions, and the permanent magnet 61 is omitted. Specification 515,793 [Group XXX], is referred to.
Patent GB-1421566-A (GB)
Title: Transparent fused silica articles
IPC: C03C21/00
Filed: 1973-08-02
Abstract: 1421566 Fused silicon tubes HERAEUSSCHOTT QUARZSCHMELZE GmbH 2 Aug 1973 [5 Aug 1972] 36849/73 Heading C1M A tube of transparent fused silica has an inner layer of pure synthetic fused silica surrounded by a layer formed from melted granular or powdered crystalline quartz and having within its outer surface layer nuclei which promote the formation of cristobalite, on a layer of cristobalite crystals. Synthetic fused silica is defined as silica produced by vapour phase hydrolysis of silicon tetrahalide. The outer layer preferably comprises at least 50% of the total wall thickness.