baber/WOPTO huggingface dataset:
Patent GB-944386-A (GB)
Title: Improvements relating to glass structural materials
Inventor: PROCTOR BASIL ALLISTER
IPC: C22C32/00
Filed: 1960-05-21
Abstract: 944,386. Casting composite articles. ROLLSROYCE Ltd. May 23, 1961 [May 21, 1960], No. 18000/60. Heading B3F. [Also in Division B5] A structural material comprises a number of individual glass members such as plates or rods, surface-etched to remove weakening surface cracks or other imperfections, and embedded in a settable metal matrix in spaced-apart relationship. In an example a number of silicate-glass sheets are immersed in an etching solution containing 15% HF and 10% H 2 SO 4  for a time sufficient to remove a surface layer of 10 thousandths inch, and are then mounted in parallel spaced relationship in a mould into which a molten metal, e.g. an aluminium alloy, is poured.
Patent GB-450902-A (GB)
Title: Means for transportation and emptying of moulds such as are used in the manufacturing of artificial building stones
IPC: B28B7/00
Filed: 1935-06-22
Abstract: 450,902. Load - engaging devices. CARLEN, C. A., Kumla, Sweden. June 22, 1935, No. 18001. Convention date, July 21, 1934. [Class 78 (iv)] [See also Group V] Means for transporting and emptying moulds comprises a carrying stirrup member 1 provided with arms to which are pivotally connected frames 4 which carry gripping members 7 to engage the mould. The mould is turned over to empty it. The gripping members comprise discs 7 and plates 6 mounted on a bolt 5. By turning the bolt 8, the disc 7 is moved axially to approach the plate 6 and thus grip a plate 20, attached to the mould between them. A projection 9 on the disc 7 may enter a hole in the plate 20.
Patent GB-1121932-A (GB)
Title: A process for the production of a globular or spherical silica granulate
IPC: B01J2/12
Filed: 1966-04-25
Abstract: Spherical granules are formed by passing a dry precipitated silica powder, having a powder density of 50 to 100 g./l. and a secondary particle size of 1 to 70 microns, through a rotating, inclined mixer and stabilized by heating to 900 DEG  C.  The size of the granules, generally 0.5 to 8 mm. diameter, is controlled by the rate at which the powder is supplied to the mixer drum and by the speed and angle of rotation of the drum.
Patent GB-1154021-A (GB)
Title: Cosmetic Preparations
IPC: A61K/
Filed: 1966-04-25
Abstract: 1,154,021. Cosmetic preparations. PRODUITS DE BEAUTE - PARFUMS JEAN D'AVEZE S.A. 25 April, 1966 [23 April, 1965], No. 18051/66. Addition to 1,077,378. Heading A5B. A cosmetic preparation comprises one or more hydroperoxides of a fat having at least one ethylenically unsaturated fatty acid radical containing from 10-22 C atoms in the fatty acid chain and having an iodine number between 50 and 150, the hydroperoxide(s) having a peroxidation value of at least 20. The preparation is either anhydrous and contains another cosmetically active ingredient or non-active diluent, or is in the form of an aqueous emulsion having a pH of less than 7.
Patent GB-500197-A (GB)
Title: Manufacture of insecticidal compositions
Filed: 1937-06-30
Abstract: 500,197. Insecticides. COLLIE, B., ELLINGWORTH, S., ROBERTSON, A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 30, 1937, No. 18240. [Class 81 (i)] [Also in Group IV] Insecticidal compositions comprise an active ingredient of the formula wherein R=an alkyl group of not more than 6 C atoms or a hydroxyalkyl or alkoxy-alky) group and the benzene group may have substituents, admixed with an inert pulverulent diluent such as talc, chalk, kieselguhr or bentonite to which may be added an, agent such as wool fat; or the active compound may be dissolved, suspended or emulsified in water or a water-miscible' organic liquid e.g. a mineral oil to which may be added wetting, emulsifying, &c. agents. Examples describe the preparation of compositions comprising active substances of the above formula, of which benzthiazyl-2-ethylsulphide is typical, and in which there are employed as emulsifying agents cetyl trimethylammonium bromide, turkey red oil, the agents described in . example 1 of Specification 323,720, [Class 81 (i)], and in example 1 of Specification 7137/13, [Class 2 (iii)], and polyglyceryl ricinoleate; as solvents, benzene, ethanol. petroleum oit and kerosene; as solid diluents, a mixture of tale, bentonite and sodium cetyl sulphate, and talc alone when the preparation is to be used as a dust. The octive compounds may be made by reacting mercaptobenzthiazote or a nuclear substituted derivative or a sodium salt of such compound with an alkylating agent, e.g. a dialkyl sulphate or alkyl halide.
Patent GB-270130-A (GB)
Title: Improvements in or relating to electric-light fittings
IPC: F21V19/02
Filed: 1926-07-21
Abstract: 270,130. Buckingham, R. W. July 21, 1926. Mounting electric lamps in lanterns.-In means for adjusting electric lamps relatively to their shades, the lamp-holder 31 is secured to a plate 21, slidable in a tubular guide 15 and having a nut 23 engaging a screw 17 adapted to be rotated through mitre wheels 24, 25 by a spindle 26 extending through the shade-holder 10. The guide 15 is screwed on the stem of a supporting- ring 13, having an insulated bush 14 through which the electric leads pass. The guide is formed with a slat 16 for the passage of a projection 22. which carries the nut 23 and engages a guide rod 20, the screw 17 and rod 20 being mounted in flanges 18, 19 on the guide. A downturned portion 80 of the flange 18 carries a bearing 29 for the spindle 26. The guide 15, plate 21, and shade-holder 10 are provided with ventilation holes 34.
Patent GB-562066-A (GB)
Title: Improvements in and relating to thermally operated electric control means for an electric motor
IPC: H01H61/00
Filed: 1942-12-24
Abstract: 562,066. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 24, 1942, No. 18302. Convention date, Dec. 31, 1941. [Classes 38 (iii) and 38 (v)] [Also in Group II] A split-phase motor is started and protected against overload by two hot-wire switches. On completion of the supply both motor windings 54, 56, Fig. 6, are energized, after a short interval, the wire 17 expands sufficiently to open contacts 11 and cut out the starting winding 56. On overload the wire 16 expands to open contacts 10. After an interval both wires contract, but contacts 11 are adjusted to close before contacts 10, so that the starting winding is again operative. The two switches are mounted side by side on the same base 9, Fig. 2. Each comprises movable contacts 10 carried by a flexible arm rocking about a pivot 25 and urged to open position by a C- spring 14, but held closed by a wire 16 secured at 28 to the contact carrying arm and at the other end to an adjustable lever 29. A permanent magnet 18, of the alloy described in Specification 423,897, [Group II], gives a snap-action to the contacts. The wire 16 may be made of an alloy of 80 per cent nickel and 20 per cent chromium.
Patent GB-809213-A (GB)
Title: Improvements relating to fastening devices for wearing apparel
Inventor: WOOD HERBERT HOWARD
IPC: A44B13/00
Filed: 1957-06-11
Abstract: 809,213. Hook fastenings. WALKER Ltd., T. June 20, 1957 [June 11, 1957], No. 18313/57. Addition to 777,137. Class 43 A hook fastening member for wearing apparel such as trouser waistbands comprises a tongue 2 which is cranked forwardly from and is as wide as a hose plate 1 carrying rearwardly extending prongs 3, 8. The prongs 3 extend from the outer edge ofthe hose plate and the prong 8 extends from the centre of the inner edge through an aperture 7 in the tongue and cranked part 5. The prongs pass through the material and are clenched over a backplate. The aperture may have the same size as the prong 8 or the tongue may have no aperture the prongs being formed one at each end of the base plate and one at the centre of the edge.
Patent GB-873365-A (GB)
Title: Reactors
IPC: G21F5/00
Filed: 1946-06-18
Abstract: 873,365. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 18, 1946 [May 28, 1945], No. 18326/46. Class 39(4). In a graphite moderated, water-cooled nuclear reactor, the upper surface of the reactor is covered by a water tank and fuel elements are inserted and removed through a coffer dam which may be lowered into the tank over each fuel channel in turn. The reactor is cooled by the flow of water from the upper tank, down the vertical fuel channels to a reciving tank beneath the pile. From here the water is pumped to the upper tank through a heat exchanger through which a secondary coolant flows to an evaporation cooling tower. The graphite mass is sealed in a helium atmosphere. Between the upper tank and the moderator is a shield tank containing iron shot and water. Neutron absorber control and safety rods are moved vertically into the reactor under the control of neutron density monitoring devices at the pile outer surface,. As shown, the fuel element is supported in the vertical channel 46 by the tapered steel plug 50 and is spaced from 46 by the lugs 47. The coffer dam 70 is lowered over 46 by the hooks 71, 72, 73, 74, 75 and is centred in groove and gasket 79, 80. By rotation of hook 73 the fuel-rod removal tool 78 is screwed into 50 at the threaded member 83. Hook 73 is lifted and the rod 40 is withdrawn into the lead coffin 77, (Fig. 9). Both are lifted together from the steel cylinder 76. Diphenyl may be used in place of water as a coolant and uranium oxide or carbide may be used as a fuel. In the control system, the control and safety rods are coupled to their respective operating systems tthrough magnetic clutches which are de-energised upon failure of the electricity supply, failure of coolant water supply or if the coolant temperature rises above a datum, and the rods fall freely into the pile.
Patent GB-352685-A (GB)
Title: Bullets for practice cartridges
IPC: F42B8/02
Filed: 1930-06-16
Abstract: 352,685. Projectiles. BLECHTA, F., 4, Koldi nova Ul, Prague. June 16, 1930, No. 18352. [Class 9 (i).] Relates to practice bullets comprising a hollow lead core 1 having a transverse partition 3 near the centre of gravity and provided with an outer copper jacket 2, and consists in protecting the hollow rear end by an internal copper liner 5 which prevents the fouling of the gun barrel by exudation of lead from the bullet and ensures a better trajectory for the bullet.
Patent GB-1380607-A (GB)
Title: Web guide roller
IPC: H05F1/02
Filed: 1972-04-20
Abstract: 1380607 Antistatic coatings EASTMAN KODAK CO 20 April 1972 [22 April 1971] 18367/72 Heading B2E A web guide roller has a layer of elastomeric polyurethane containing at least one antistatic agent. dispersed therein, the amount of antistatic agent being sufficient for the agent to exude constantly to the surface of the substance so to be removed therefrom by a web material passing in. contact with said surface. The antistatic agent is preferably a salt of a phosphoric ester such as triethanolamine octylphosphate. A method of protecting material from the accumulation of electrostatic charges during handling comprises passing the web, e.g. a photographic film material, over such guide means.
Patent GB-387229-A (GB)
Title: Improved manufacture of alkali carbonate or mixtures of alkali hydroxide with alkalicarbonate and ammonia
IPC: C01D1/26
Filed: 1931-08-21
Abstract: Alkali cyanides are hydrolysed by steam in a thick layer, say in the form of briquettes, to produce alkali carbonate or in a thin layer, say in layers 2mm. or less thick of the pulverulent material, to produce alkali hydroxide admixed with a lesser quantity of alkali carbonate.  According to the examples a mixture of sodium bicarbonate and coal is cyanidized by the action of nitrogen at 950 DEG  C. and the resulting product is hydrolysed by steam at 400-500 DEG  C. under either of the conditions set forth above.  The process is also applicable to the corresponding potassium compounds.  Specifications 379,549 and 381,373 are referred to.
Patent GB-592664-A (GB)
Title: Automatic high-frequency heater for heating plastic moulding powders and the like
IPC: H05B6/50
Filed: 1944-09-26
Abstract: 592,664. Valve generating circuits. BURTON, H., PARISH, P. G., and ROTOL, Ltd. Sept. 26, 1944, No. 18389. [Class 40 (v)] Push-pull high-frequency oscillator has anode and grid circuits tuned by simple Lecher wire systems and anodes connected through a condenser 8, the plates of which may be used for dielectric heating. Switching and relays incorporate time delay for enabling filaments to heat, safety measures operated by excess current, controlled process-timer and visual indicators.
Patent GB-1535593-A (GB)
Title: Electrochromic display device with a contrast-enhancing adjuvant and method of producing the same
IPC: G02F1/153
Filed: 1976-05-05
Abstract: 1535593 Controlling light BBC BROWN BOVERI & CO Ltd 5 May 1976 [7 May 19751 18402/76 Heading G2F In a display device comprising an anhydrous electrolyte layer between two electrodes and a layer of solid electrochromic material such as W03 between at least one electrode and the electrolyte with an optical absorption which alters in response to a current between the electrodes and in a sense determined by the polarity of the current, at least one light absorbing or reflecting fabric layer is disposed in the electrolyte layer to intensify the contrast between the different absorption states of the electrochromic layer. It is said that the use of a fabric layer, rather than a dispersed pigment prevents the introduction of water and other contaminants into the electrolvte. As the latter is anhydrous, higher operating voltages and faster switching times may be used without hydrogen evolution and destruction of the electrodes. As described, each electrode is overlaid with a WO 3  layer, and is formed of SnO 2  on glass, and the electrolyte is one molar LiClO 4  in propylene carbonate, The fabric may be of PTFE, nylon, or SiO 2  or carbon fibres and may incorporate a dye, or have a metallic coating (Au). In the later case it is spaced from the electrodes by further transparent fabric layers, or a further insulating Al 2 O 3  or SiO layer is provided over the metal coating.
Patent GB-104323-A (GB)
Title: Improvements in or relating to Coagulating Rubber Latex.
Inventor: THOMAS GEORGE MONTAGUE
IPC: B29C65/00
Filed: 1916-12-22
Abstract: 104,323. Thomas, G. M., and Maude, M. D. Dec. 22, 1916. Latex, coagulating -Rubber is coagulated naturally, that is without any addition, in an air-tight vessel such as A, Fig. 1. The cover C is provided with a liquid seal, the liquid levels on the two sides of the flange C' being equalized by means of a U-tube D, which allows air to escape. Alternatively, the flange C' may be provided with inner and outer pockets closed at the bottom, open at the top, and com. municating one with the other.
Patent GB-121198-A (GB)
Title: Improvements in or relating to Kilns or Ovens for use in the Manufacture of Pottery, Tiles and other Ware and for other purposes.
Inventor: MADDOCK JOHN STUART
IPC: F27B9/08
Filed: 1917-12-13
Abstract: 121,198. Maddock, J. S., and Maddock, W. E. Dec. 13, 1919. Kilns.-A gas-fired pottery or like kiln of the tower type is constructed with an inner hollow wall or lining containing air and heat passages or flues communicating with the combustion chamber, and forming a central vertical bore or passage for the goods, which are passed through it, preferably from below upwards, out of contact with the heating-gases. An expansible ring is provided at the base of the central bore to support the shelves for the goods. As shown in Fig. 1, gas is supplied at j and burnt in the combustion chamber with air supplied through the outer passages d in the lining, and the products of combustion pass downwards through the inner passages c of the lining to the outlet at k. The combustion chamber may be separate from the lining, The air is first supplied to the upper part of the kiln, which is fitted with deflectors g, g'. It then passes by the pipe h to the lower part of the kiln and rises the passages d to the combustion chamber. The passages c. d are annular in form, with intercommunicating openings arranged alternately at opposite sides of the kiln. Surplus air may be led away from the top of the tower. The goods are supported on slabs or shelves n with intervening props p, which are raised by a lifting-device m, the lowermost slab being supported by the expansible ring o during the insertion of another one, with its charge, beneath it.
Patent GB-394488-A (GB)
Title: Improvements in fans or ventilators
IPC: F04D29/32
Filed: 1932-06-30
Abstract: 394,488. Screw fans. PAUL & CO., Ltd., M. and WORKMAN, R. E., Levenford Works, Dumbarton. June 30, 1932, No. 18493. [Class 110 (i).] In a screw fan the chord length of the blade increases from the hub outwards to a distance of 10 per cent of the radial length of the blade and then decreases. The angle of attack is a maximum at the hub and decreases outwards or first decreases and then increases or remains the same.
Patent GB-1513318-A (GB)
Title: High tension power converters
IPC: H02M7/5387
Filed: 1976-05-05
Abstract: 1513318 Inverting L'ELECTRONIQUE DES VEHICULES ET DES RESEAUX (EVR) 5 May 1976 [15 May 1975] 18497/76 Heading H2F A power converter comprises a series connection of inverters connected across H.T. supply terminals, each inverter having four transistors T1-T4, T'1-T'4 etc and a transformer T, T' etc. connected in an H configuration as shown, a first oscillator circuit 10-17 for supplying transistor controlling pulses at a predetermined switching frequency to switch on the transistors T1, T'1 etc. and substantially anti-phase pulses to switch on the transistors T3, T'3 etc., and a second oscillator circuit 20-27 for supplying transistor controlling pulses at said switching frequency but displaced by a phase angle ## from the pulses of the first oscillator circuit to switch on the transistors T4, T'4 etc. and substantially antiphase pulses to switch on the transistors T2, T'2 etc., both oscillator circuits including a clock oscillator 10, 20, a delay circuit 12, 22 to delay pulses from the clock oscillator by a short delay #t and logic circuits 11, 13, 14, 15 and 21, 23, 24, 25 connected to provide said transistor controlling pulses and substantially anti-phase pulses only when both the clock pulses and the delayed clock pulses are of the same polarity thereby preventing simultaneous conduction of any pair of transistors in the same branch of each inverter. As shown in Fig. 1, the output of clock oscillator 10 is applied directly to a divide-bysix device 11 and via the delay device 12 to a divide-by-six device 13, the outputs 1 and 1' being applied to a NOR gate 14 whose output pulses control the transistors T1, T'1 and the outputs 4 and 4' being applied to a NOR gate 15 whose antiphase output pulses control the transistors T3, T'3. The transistors T4, T'4 and T2, T'2 are controlled in the same manner by elements 20-27. Similar arrangements (not shown) are provided for the other two phases. The secondary windings L, L' of the transformers T, T' are connected in series and to a rectifying, filtering and voltage dividing device 28 whose output is applied to a diode 29. The diode 29 is one of five diodes 29-33 which perform the logic OR function, the cathodes of these diodes being connected to one input of a comparator 34 whose other input is supplied with a reference voltage. The output of comparator 34 controls the phase of clock oscillator 20. Diodes 31, 32 and 33 are connected to starting arrangements, only one of which is shown. This consists of a voltage providing device 36, a transistor 37, an exclusive OR gate 39 connected to the outputs 1, 1' of the dividers 11 and 13 and 1#, 1'# of the divider 21 and 23, and an integrator 40. The diode 30 is connected to a rectifying filter (not shown), which receives the current of a current transformer arranged at the terminals of the conductor through which the current coming from the windings L, L' passes. The switching of diode 30 is thus used for limiting the current passing through the windings L, L'.
Patent GB-1464922-A (GB)
Title: Magnetic recording and reproducing apparatus
IPC: H04N5/782
Filed: 1974-04-29
Abstract: 1464922 Endless-tape magnetic recording/ playback apparatus TOKYO SHIBAURA ELECTRIC CO Ltd 29 April 1974 [28 April 1973(2)] 18609/74 Heading G5R A magnetic tape recording and playback apparatus has an endless magnetic tape 1, Fig. 1, wound around a rotatable reel 3 to form a roll 4, drive means 9, 10, 12 for transporting the tape at a speed higher than 5 meters/sec. during normal recording and playback operations, restricting means 5 for applying to the edges of at least some of the turns of the tape roll a force to counteract centrifugal force acting on the roll 4 when it is rotated by the drive means, a normally stationary magnetic head 16 for recording FM signals on, and reproducing recorded signals from, any selected one of a plurality of longitudinal tracks on the tape 1, and means 17 to move the head 16 transversely of the tape 1 to effect track changing. The restricting means 5 may comprise three rotatable rollers 5a as described in Specification 1,464,921. The tape 1 is driven by a capstan 9, and at least one pinch roller 10, 12 and is guided by fixed posts 6, 7, 8, or generally crescent shaped guide 11 and buffering means comprising a fixed post 19 and a wall 20. The guide 11 has a flange 14 at its lower edge and a cavity 15 opposite a convex member 22, Fig. 3A, movable with the head 16 which projects through a slot 23 therein. The tape may be up to 300 meters long, may have a graphite coated backing and may be ¢ inch wide with 100 tracks at 125 microns pitch. The track pitch may be as small or 60 microns. The track changing arrangement has a motor which is energized when the end of each track is detected by reflection of light from a reflecting region on the tape or when a timing switch, set to a period equal to the time of each track, times out. The motor rotates a wheel 33, Fig. 3C, via a wheel 31, whereby a vertically fixed nut 36 rotates causing vertical movement of a bolt 35 to which the head 16 and member 22 are fixed via a plate 44 sliding in fixed guides (48), (49), (50), Fig. 3B (not shown). The motor stops when the actuator 43 of a microswitch 42 engages in the next notch 40 of a cam disc 39 rotating with nut 36. In a modification, a pulse motor (80), Fig. 10 (not shown), is directly coupled to a nut 36. Motor (80) may alternatively drive a vertically fixed bolt 35 with the head 16 then being mounted on a nut moved vertically by bolt 35.