baber/WOPTO huggingface dataset:
Patent GB-1438226-A (GB)
Title: Cryogenic insulating structure
IPC: F17C13/00
Filed: 1974-06-27
Abstract: 1438226 Cryogenic insulation MITSUBISHI CHEMICAL INDUSTRIES Ltd 27 June 1974 [27 June 1973 17 Sept 1973] 28638/74 Heading F4P Insulation for cryogenic tanks or pipes comprises a plurality of foamed layers 5 impregnated with fibres 3 which are orientated so as to extend parallel to the surface 1 to be insulated, the direction of the fibres in planes parallel to the surface 1 being random. Method of forming insulation.-The fibres 3 are fed in an air stream on to the surface 1 so as to form a random web wherein all the fibres extend parallel to surface 1, the random web being maintained by the air pressure while the foamable liquid is sprayed on to the web. The foamable liquid is then foamed or allowed to foam. Foam material.-Polyurethane foam, polyisocyanurate foam, epoxy resin foam and pyranyl resin foam. Fibre material.-Organic fibres such as hemp or cotton, synthetic fibres such as rayon, acetate, polyethyleneterephthalate, polyethylenenaphthalate or hydrolysed ethylenevinylacetate copolymer, or inorganic fibres such as glass, stainless steel or aluminium.
Patent GB-1105429-A (GB)
Title: Improvements in or relating to the production of doped monocrystalline layers of semiconductor material
IPC: H01L21/205
Filed: 1966-06-27
Abstract: 1,105,429. Semi-conductor devices. SIEMENS A.G. 27 June, 1966 [28 June, 1965], No. 28674/66. Heading H1K. In an epitaxial deposition process a vaporizable compound of the semi-conductor material only a vaporizable compound of a dopant diluted with a vaporizable compound of the semi-conductor material are evaporated in separate vessels and fed to the reaction chamber containing a heated monocrystalline semiconductor substrate. As shown, the reaction chamber 1 is connected to bubble evaporators 2, 3 which are cooled by water jackets 14, 15, and into which a carrier gas such as hydrogen is fed via valves 10, 11. Evaporator 2 contains liquid germanium trichloride and evaporator 3 contains a solution of decaborane in germanium trichloride. A third evaporator may be provided containing a vaporizable compound of an impurity of the opposite type diluted with a compound of the semi-conductor material so that the conductivity type of the deposited layer can be changed during the process. The semi-conductor material may also be silicon produced by using trichlorosilane and antimony pentachloride as the vaporizable compounds of the semi-conductor material and dopant respectively.
Patent GB-970168-A (GB)
Title: Improvements relating to apparatus for the treatment of water
Inventor: CHEYNE ROBERT DOUGLAS
IPC: C02F1/42
Filed: 1961-08-09
Abstract: <PICT:0970168/C1/1> <PICT:0970168/C1/2> A series of cylindrical ion exchange chambers 1, 2, 3, 4 have horizontal axes and a downward or upward flow by means of inlets (outlets) 7 and 8.  Alternate chambers may be of strong base and strong acid exchangers. Regeneration may be performed through connections 22 and 14.  A similar arrangement can be made with spherical chambers (Fig. 2).  Specifications 761,159 and 882,362 are referred to.
Patent GB-274693-A (GB)
Title: Improvements in fluxes for soldering
IPC: B23K35/36
Filed: 1926-11-16
Abstract: 274,693. Blackford, J. Nov. 16, 1926. Fluxes.-A flux for soldering metals such as iron and brass comprises 1 oz. of anhydrous zinc chloride, 8 ozs. finely ground ammonium chloride and 1“ ozs. of sodium fluoride. Specification 235,503 is referred to.
Patent GB-1056422-A (GB)
Title: Fast-operating optical shutter
IPC: G03B9/08
Filed: 1963-07-22
Abstract: 1,056,422. Shutters. FOLAS ENTERPRISES Inc. July 22, 1963 [July 31, 1962], No.28880/63. Heading G2A. A flat shutter of opaque material having integral electrically conductive means is opened by the electromagnetic reaction caused by a surge of current through the said conductive means. In the form shown in Fig. 1, a foil 10 of an opaque conductive material is mounted between conductive support clamps 12, 13 and disposed on the optical axis of a photographic apparatus. A capacitor 15 is charged from a high voltage supply 16 with a control 17, and in the circuit is a spark gap 14 which can be triggered by a pulse which is synchronized with the apparatus. When the gap is triggered, the capacitor discharges with a heavy surge of current through the foil. The electromagnetic forces cause the foil to buckle, thus acting as a fast-opening shutter. In a modification Fig. 3 (not shown), two such foils are clamped in an overlapping and slightly offset position, with a transparent plastic sheet between them. The construction is such that current passes through the two foils in opposite directions, so that in addition to the disruptive effect of the current, the foils also tend to repel each other, giving an even faster opening shutter action. Fig. 5 shows another form, in which two shutter plates 63, 64 are mounted so that they can slide in respective grooves 51, 52 in the supporting frame. These plates are stiffer than the foils of the previous embodiments, so that they do not collapse in operation. The arrangement is such that when the spark gap is triggered off, the discharge from the capacitor surges through the plates in opposite directions, so that they repel each other and slide apart, so opening the aperture. Fig. 8 (not shown) is a similar embodiment, but arranged so that the current discharges through both plates in the same direction, causing mutual attraction between them, so that if they were initially spaced apart, they slide together to close the aperture. This arrangement and the previous one could be used in combination, disposed along the same optical axis, and synchronized so as to open, and then shut, an aperture. Instead of the plates being of conductive material, they may be of insulating material, with a conductive strip or wire along the facing edges. For high speed shutter action, the energy discharged from the capacitor should be as high as is possible without burning or shattering the plates. This may be determined by trial and error. The effect on the shutter speed of different shutter dimensions and materials and capacitor energy is discussed.
Patent GB-248449-A (GB)
Title: Improved process for the treatment of house refuse
IPC: B03B9/06
Filed: 1924-12-02
Abstract: 248,449. Hadfield, G. H. Dec. 2, 1924. Refuse, dust-bin, treating.-House refuse after collection and in some cases after preliminary sifting or separation of metal and decayable parts is mixed with water and the mixture is forced by a pump to classifying or separating apparatus or to storage bins. A collecting van a tips the rubbish on to a double screen c, d. which separates it into three products. The material retained by the screen c, consisting of paper, tins, bottles &c., passes on to a travelling belt e for hand-picking. The combustible parts may be burned and utilized to generate electricity. The material retained by the screen d and that which passes through it fall down hoppers g, h into water. The mixture of water and small pieces of coke and clinker and dust from the hopper g is pumped by a pump j to draining-bins which separate water and dust and leave a material suitable for use in making mortar or partition blocks or for separation into coke and clinker. The larger material from the hopper h is, in admixture with water, raised by a pump m to a separator n utilizing clay suspension and is separated into coke for use as fuel and clinker. In separating the ingredients of old deposits of house refuse, the material together with water may be raised directly by a pump. Specification 24054/03 is referred to.
Patent GB-310821-A (GB)
Title: Traversing gear for sound recording instruments
IPC: G11B17/00
Filed: 1927-10-31
Abstract: 310,821. Sykes, A. F. Oct. 31, 1927. Feed mechanism; turntables.-In recording sound the cutter is traversed or controlled by hydraulic means, fluid under pressure being admitted to a cylinder through a suitable orifice or valve to operate a piston which is connected by a rod having some flexibility to the cutter carriage or controls the feed ejected by a feed screw. This arrangement permits adjustment of the orifice or valve to give a variable feed during recording to suit the amplitude of the . vibrations, as described in Specification 303,759, and the depth of cut may be varied simultaneously with the feed by tilting the turntable. The turntable may also be mounted for vertical adjustment to suit the thickness of the blank, thereby avoiding adjustment of the cutter. The recording device 7, Fig. II, is mounted on a wheeled carriage 4 movable along tracks 3 by its connection, which is adjustable, with a rod 13 fixed to a piston 21, Fig. III, in a cylinder 2 into which pressure fluid is admitted by a calibrated valve 9 adjustable by a disc 20. The valve end 47 of the cylinder is bored conical and has a channel 40 communicating with an exhaust port to permit escape of air from the fluid. The turntable 8, Fig. II, with its spindle and motor is supported by horizontal pivots in brackets 24, Fig. V on a frame 22, and the turntable can be tilted out of horizontal, to adjust the depth of cut, by a screw 26 which may be adjusted simultaneously with adjustment of the valve controlling the feed by a Bowden wire or other connection. The frame 22 may be mounted on the base to provide for a small vertical adjustment according to the thickness of the blank. For this purpose, the frame 22 and an arm 28 extending therefrom are mounted on a rod 29 secured by a clip 45, and vertical adjustment is effected by a nut 36 on a screw 35 guided in the base. A lug 31 on the frame is held against a lug 32 on the base by a spring. When this mechanism is employed in making constant tracking speed records the control operates through cams, linkages or the like to impart the required feed adjustment. An arrangement for avoiding wide divergencies from some desired pitch comprises the provision of a master screw 48, Fig. VII, driven from the motor and controlling through a pivoted part nut 49 and rod 53 a needle valve 56 regulating an auxiliary supply to the hydraulic cylinder 2 when the feed produced by this varies. In the arrangement shown, the cylinder 2, moves with the recorder and the piston rod 13 is secured to a fixed part of the frame.
Patent GB-248820-A (GB)
Title: Improvements in rifle sighting devices
IPC: F41G1/30
Filed: 1924-12-03
Abstract: 248,820. Eden, J. L. Dec. 3, 1924. Sights.-A sight intended to correct automatically for range comprises a rear glass plate 1 at right-angles to the axis of the gun, a front wedge-shaped glass plate inclined at an angle of 45‹, and a right-angled reflecting prism 3, or mirror, arranged above the front plate. The faces of the front plate are inclined to one another at a small angle which for a service rifle is about half a degree. The front and rear plates are marked with cross lines. Two images of the target are seen through the sight, a direct image 6, Fig. 3, through the two plates 1, 2, and a weaker image 5 due to reflection from the prism 3 and the rear face of the front plate. To aim the gun, the direct image 6 is aligned on the cross lines of the rear plate 1 and the reflected image 5 on the cross lines of the front plate. In a modification, the rear plate is replaced by a telescope provided with cross-wires, the gun being adjusted when aiming until the reflected image is as much below the horizontal cross wire as the direct image is below the reflected image.
Patent GB-652339-A (GB)
Title: Compositions for inhibiting metal tarnish
IPC: C23F11/14
Filed: 1948-11-08
Abstract: The tarnishing of non-ferrous metals and alloys such as copper, brass and German silver, caused by contact with a calcium sequestering phosphate such as tetrasodium pyrophosphate or hexasodium tetraphosphate, is inhibited by dissolving in the solution at least 0.001 per cent and at the most 5 per cent by weight on the said phosphate of a compound having a nucleus <FORM:0652339/I/1> where X is tetravalent carbon or trivalent nitrogen, the dotted lines indicating that the two adjacent carbon atoms, and/or the nitrogen atom and X, may be attached by double bonds. Photographic developers are excluded from such solutions. Compounds specified as having the above nucleus are ethylene thiourea, benzotriazole, 2-methyl imidazole, 4-methyl imidazole, benzimidazole, 5-methyl benzimidazole, 2-amino benzimidazole, histidine, adenine, guanine, xanthine, creatinine, allantoin and dimethyl hydantoin.  Inorganic compounds such as sodium chloride or sulphate, and synthetic detergents may be added.  U.S.A. Specifications 1,956,515, 2,031,827 and 2,395,971 are referred to.
Patent GB-795779-A (GB)
Title: Improvements in or relating to the treating of surfaces for discontinuities
Inventor: SWITZER ROBERT CHARLES
IPC: G01N21/91
Filed: 1955-10-12
Abstract: 795,779. Detecting surface flaws. SWITZER BROS., Inc. Sept. 24, 1956 [Oct. 12, 1955], No. 29082/55. Class 106 (2). [Also in Group XL (a)] A testing agent for use in detecting surface flaws in test bodies comprises a dye dispersed in a flaw-penetrating liquid selected from the class consisting of polyoxyalkylene glycols and aliphatic mono- and di-ethers thereof. If the liquid chosen is a water-immiscible one there may be added to this liquid one or both of the following: (a) a water-immiscible diluent such as a hydrocarbon oil penetrant, for example kerosene, and (b) an oil-soluble emulsifying agent, such as petroleum sulphonate or any of a wide range of soaps or detergents. The emulsifier may include a coupling agent which will assist the emulsifying agent in coupling a washing water with the oil constituent of the liquid to form an emulsion which will strip off the penetrant from the surface being inspected. The coupling agent is preferably a glycol, for example ethylene glycol. If the flow-penetrating liquid chosen is one miscible with water, water or a water-miscible organic extender may be used as the diluent and the emulsifying and coupling agents omitted. A water-immiscible penetrant can be used without an emulsifying agent where the emulsifying agent is incorporated in the wash water used for washing the penetrant from the surface of a body coated therewith or where the emulsifying agent is applied over the penetrant coated body by spraying or dipping before washing the penetrant from the surface of the article. The dye may be a non-fluorescent colour material or one containing a fluorescent dye responsive to ultraviolet light. Examples of suitable fluorescent dyes are quoted and the use of polyoxyalkylene glycols is stated to enhance the brightness of the fluoragent. Specifications 642,402, [Group XL (a)], 684,021 and U.S.A. Specification 2,259,400 are referred to.
Patent GB-535745-A (GB)
Title: Escape equipment for submarines
IPC: B63G8/40
Filed: 1939-11-01
Abstract: 535,745. Escape equipment for submarines. PATON, A. S. Nov. 1, 1939, No. 29185. [Class 68 (ii)]  The escape chamber 1, allowing access to the sea through the door 3, communicates also with the sea through a duct 7 provided with a valve 8 and sea door 5. An air valve 4 is first opened together with the door 5 and valve 8 to admit water to the chamber up to the level of the manhole door 2, the air escaping into the submarine. A member of the crew then enters the chamber 1, with suitable life-saving apparatus, the door is closed and the valve 8 opened until the chamber is filled; air again escapes into the submarine. With the pressures now equalised, the door 3 may be opened to allow of escape. The door and valve 8 are again closed and by means of the pump 9 water is withdrawn from the chamber and forced out through the conduct 7 and door 5 until it is below the level of the manhole whereupon the device is ready for further escapes. The air-valve 4 may be float-controlled.
Patent GB-214769-A (GB)
Title: Feed-water superheaters for locomotives
IPC: F22D1/42
Filed: 1922-10-26
Abstract: 214,769. Plant, L. G., and Hawley, C. G. Oct. 26, 1922. Feed-water, heating.-In a locomotive engine a tubulous feed heater is arranged forward of the blast nozzle 6 and within a compartment formed in the smoke box by a diaphragm 4, a plate 3 and a cinder screen 12. The heater is inserted through the side of the smokebox and is supported by rails 26 and the frame 48 of the opening. Water, fed by a pump or injector, and in every case slightly preheated by steam to prevent condensation on the exterior of the pipes, passes to the uppermost compartment 42 of the outside header and through tubes a<5> to the inner header 44 whence it returns by tubes a<6> to the compartment 43 and to the boiler. In the example shown the tubes a<5> of the uppermost bank are traversed by close ended tubes a<7> from a header 45 fed with exhaust steam. Each header is constructed from two pressed steel plates so that when assembled stepped compartments are formed, with a plane jointing face 40, the tube plates of each compartment being vertical. The tubes are spaced most closely in the lowest bank. In use, hot gases carrying ash and dust pass under the plate 3 and, in striking the screen 12 clinker is broken up and the particles impinge on the tubes a<6>, a<5> of the feed heater and have a scouring action preventing or removing incrustation. By opening a cock to the atmosphere operated from the cab, and placed in a bypass from the pipe leading from the injector to the heater, a reversal of flow through the feed heater can be effected under boiler pressure, which will clear the heater of sediment. All pipe joints are external to the smoke box to facilitate removal of the heater when desired. The o iter header mav be lagged. By means of partitions in the header or further convolutions in the plates forming the headers the water may be made to pass more frequently across the stream of hot gases and in further modifications the water is heated wholly by the hot gases or simultaneously by exhaust steam and hot gases in all the tubes instead of the top bank only. For use in dismounting the heater, extensions of the rails 26 on suitable supports may be clamped to the side of the smokebox, on which the heater may rest when withdrawn for cleaning or repair. Specification 137,093, [Class 123 (ii), Steam generators], is referred to.
Patent GB-323063-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J7/06
Filed: 1928-10-11
Abstract: 323,063. Harmer, F. E. Oct. 11, 1928. Hoods.-In a collapsable hood or cover for a saloon car of the kind comprising a flexible sheet or strip adapted to slide over the roof a transverse member is provided on the roof with which coacts a member on the flexible, cover for making a watertight joint when the cover is extended. The cover 8 and lining 9 are secured to spring rollers 10, 11 respectively in two parts 12, 13 laced together on the roller by suitable lacing 14. The rollers are situated in housings 15 and the front edges of the cover and lining are secured to the front hoop stick 4 which together with the remaining hoop sticks 4 slide in guides 5. The hoop sticks are connected together by flexible strips 6 acted upon by elastic members 7. The cover 8 near the rear is provided with an upstanding strip 21 adapted to engage with a transverse, turned-in flange 22 when the cover is extended. Specifications 323,064 and 323,065 are referred to.
Patent GB-1485213-A (GB)
Title: Acoustic insulating panel
IPC: E01F8/00
Filed: 1975-07-11
Abstract: 1485213 Building panels; highway sound barriers ASAHL GLASS CO Ltd 11 July 1975 [15 July 1974] 29254/75 Headings E1B and E1G A sound insulating building panel comprises a cement or concrete box 2 reinforced with alkali resistant glass fibres and containing sound absorbing material 1 e.g. foamed polystyrene or glass fibres. The box is closed by a perforated wall 4. The box preferably contains 3-20% by wt. of glass fibres.
Patent GB-303348-A (GB)
IPC: C03C27/02
Filed: 1928-10-11
Abstract: 303,348. Siemens - Reiniger - Veifa Ges. f³r Medizinische Technik. Dec. 31, 1927, [Convention date]. Vacuum tubes.-In sealed joints between metal and glass, the metal part at least at the point of sealing is an alloy of nickel and chromium, which contains preferably from 60 to 90 per cent of nickel. The joint may comprise plates, tubes, or other parts sealed into, upon, or around glass.
Patent GB-1134385-A (GB)
Title: High density rigid polyurethane foams
IPC: C08G18/40
Filed: 1967-06-26
Abstract: 1,134,385. Lasts. UPJOHN CO. 26 June, 1967 [21 July, 1966], No. 29366/67. Heading A3B. [Also in Division C3] Shoe lasts may be moulded from a high density polyurethane foam which had been prepared by reacting under foam producing conditions (a) a polyisocyanate which is (i) methylene bis (phenyl isocyanate) or (ii) mixtures of polymethylene polyphenyl isocyanates containing 35 to 85% by weight of methylene bis (phenyl isocyanate), (b) a polyether polyol of functionality 3 to 8 and equivalent weight of 50 to 200 and (c) a polyester diol having an equivalent weight of 75 to 600, the overall functionality of (b) (c) being 2.5 to 3.5 and the overall equivalent weight being 100 to 175, the overall ratio of isocyanate to hydroxyl groups being 0.9 to 1.2. In Examples various polyurethane-forming reaction mixtures are poured into moulds for shoe lasts. Alternatively a rough shoe last was prepared, which was then finished and fitted with a conventional spring loaded hinge, steel plate heel reinforcement and mounting bracket.
Patent GB-704043-A (GB)
Title: Manufacture of new trisazo-dyestuffs
IPC: C09B35/46
Filed: 1951-12-14
Abstract: The invention comprises trisazo dyestuffs of the formula <FORM:0704043/IV (c)/1> where R is a benzene residue, preferably sulphonated.  These are made by coupling m-phenylene diamine 4-sulphonic acid with the appropriate diazo disazo compound, the latter being obtained by coupling H-acid with 1 mol of tetrazotized benzidine and 1 mol of diazotized R-NH2.  The products dye leather in black shades. Examples show the production of dyestuffs where R is the residue of aniline, sulphanilic acid, o-anisidine-5-sulphonic acid and 4-nitraniline-2-sulphonic acid.  A further example shows the dyeing of velour leather with the product from sulphanilic acid. Other suitable components R-NH2 are aniline-2 : 5-and 3 : 5-disulphonic acids, 4-chloraniline-2-sulphonic acid, orthanilic acid and metanilic acid.  Specification 454,261 is referred to.
Patent GB-847560-A (GB)
Title: Rotary ball type fluid valve
Inventor: WOLFENSPERGER ADOLPH
IPC: F16K5/06
Filed: 1958-09-15
Abstract: 847,560. Pipe joints. ROCKWELL MFG. CO. Sept. 15, 1958, No. 29442/58. Class 99(1). [Also in Group XXIX] Sealing and lubricating material is passed from a screw injector 166 through a tube 140 having enlarged ends respectively sealing with and rocking in a rotary ball valve casing 36 and its seat rings 78, 80 and vents by passages in the rings to grooves 102 between the ball 24 and the seat rings.
Patent GB-1514505-A (GB)
Title: Optical fibres
IPC: C03C25/106
Filed: 1975-07-14
Abstract: 1514505 Coating optical fibres LES CABLES DE LYON 14 July 1975 [16 July 1974] 29519/75 Heading DIP [Also in Division B2] An optical fibre is given a protective coating by passing it through a bath of resinous composition and then through a chamber containing a gas or vapour at ambient temperature which hardens the resin coating, the optical fibre preferably remaining substantially rectilinear during the process. Preferably the resinous composition is a solution in an organic solvent of a phenolic resin and an isocyanate and the catalyst is a tertiary amine. Several coatings can be applied, each bath being followed by a catalyst chamber and a de-gassing chamber for removing the amine.