baber/WOPTO huggingface dataset:
Patent GB-1324576-A (GB)
Title: Method of producing a solar cell
IPC: H01L31/18
Filed: 1971-04-19
Abstract: 1324576 Solar cell manufacture LICENTIA PATENT-VERWALTUNGS-GmbH 19 April 1971 [13 Feb 1970] 21182/71 Heading H1K A silicon solar cell, complete except for its contacts, is vapour coated, in the area to be occupied by its back contact, with a thin layer of aluminium or aluminium-gallium alloy and the temperature raised to completely dissolve the metal in a metal-silicon melt. The high temperature (700-750‹ C.; a temperature below temperatures used in previous processing steps) is maintained for 10-15 minutes and the temperature then rapidly lowered to below the eutectic temperature of the melt and finally lowered to room temperature at a rate of 1-20‹ C./minute. The contacts of the solar cell are then applied, the metal-silicon eutectic being allowed to remain as part of the electrode structure. The process restores the minority carrier lifetime, this having been degraded in the previous processing steps.
Patent GB-443147-A (GB)
Title: Improvements in ovens or kilns
IPC: F27D1/00
Filed: 1934-07-20
Abstract: 443,147. Continuous furnaces. CAMPBELL, A. J., Oulton Croft, Stone, Staffordshire. July 20, 1934, No. 21203. [Class 51 (ii)] A continuous furnace comprises superposed independent trains of ware-conveying units c, d, c<1>, d<1> arranged between a roof a and a base b, the units having transverse ware-supporting bars f, and refractory side members e, e<1> which are in substantial contact with one another and are supported and guided by rails h and rollers i so as to constitute mobile side walls to the structure. The units forming each train are not connected to one another and adjacent trains are preferably moved, by rack and pinion gearing or driving chains, in opposite directions so that units may be inserted and removed at both ends of the furnace. In the case of an electric furnace, heating elements may be disposed in the roof and base or in the conveyer units themselves; in the latter case a system of rubbing contacts is provided. The ware supports f are of grid or lattice form and are constituted by heat-resistant wires or bars on which are carried sleeves of refractory material. Entry of air through the joints between the side members e, e<1> is prevented by mercury or like liquid seals or by the provision of asbestos curtains. The roof and /or base may be longitudinally movable in relation to the intervening conveyer trains, and each of the latter may be subdivided transversely into a number of longitudinal sections which are movable in either direction. Specification 315,773, [Class 51 (ii)], is referred to in the Provisional and Complete Specifications and Specifications 441,690 and 441,769, [both in Group X], in the Provisional Specification only.
Patent GB-730147-A (GB)
Title: Blading for radial flow centrifugal compressors, blowers, fans, pumps and the like
IPC: F04D29/68
Filed: 1953-07-30
Abstract: 730,147. Reducing surface friction. MASCHINENFABRIK OERLIKON. July 30, 1953 [Aug. 28, 1952], No. 21211/53. Class 4. In a hollow blade for a compressor or the like, the surrounding fluid is drawn into the interior of the blade by the provision of apertures 6 and/or 7 in the wall of the blade and an aperture 8 in the trailing edge whereby a flow is induced through the blade from the apertures 6 and/or 7 to the aperture 8 to prevent breakaway of the streamlines over the rear portion of the blade.
Patent GB-336282-A (GB)
Title: Processes of making formaldehyde
IPC: C07C45/38
Filed: 1929-07-10
Abstract: 336,282. Wade, H., (Bakelite Corporation). July 10, 1929. Formaldehyde. - In making formaldehyde by the catalytic oxidation of methanol, the formation of by-products is minimized by adding a basic agent such as ammonia to the reaction mixture at any stage or stages of the process prior to the distillation of the crude product obtained by absorbing or condensing the mixture leaving the catalyzers, the basic agent being in proportion sufficient to ensure that the distillate is substantially neutral. For example, ammonia gas may be fed into the pipe conveying methanol and air to the catalyzers, or ammonia may be added to the crude product before distillation. Basic compounds of the alkali or alkaline earth metals may also be employed as neutralizing agents either during the absorption or condensation step, or during the distillation. It is preferable to maintain the reaction mixture substantially neutral throughout the whole process.
Patent GB-778223-A (GB)
Title: Improvements in or relating to gas valves for use in the flue between a gas producerand a consuming unit for the gas, e.g., a furnace
IPC: F16K13/10
Filed: 1954-07-21
Abstract: 778,223. Valves. PILKINGTON BROS., Ltd., GREENWAY, E. A., and WHITEHEART, J. J. June 27, 1955 [July 21, 1954], No. 21331/54. Class 135. A gas valve for use in a flue between a gas producer and a consuming unit, e.g. a furnace, consists of a hood 4 movable vertically in a vertical portion 1 of the flue and having a cutaway portion on one side 6 which coacts with a horizontal section 2 of the flue. Alternatively, the hood may be formed to lift out of the water seal at all four edges and to control more than one horizontal passage. The vertical part 1 of the flue, which may serve as either the inlet or the outlet, has a deep, narrow trough 7 filled with water into which the lower part of the hood extends to form a seal. Water is continuously supplied to the trough through a connection 15 and escapes through an overflow 17 provided with a further water seal 19. The top of the hood has angle-iron stiffeners 9 by which it is connected to an actuating stem 8 passing through a water seal 10 having water supply and overflow pipes 16, 18. A tube 13, which dips into the water seal, is calibrated to indicate the degree of opening of the valve. The side 6 of the hood may have a notch to provide a small definite opening of the valve just short of total closure. Instead of providing a rectangular opening the cut-away portion of the hood may be in the form of an inverted Vee which may have a parallel portion at its top instead of a sharp apex. A balance weight may be fitted to the hood to compensate for the removal of metal on the side 6. The hood may be duplicated by a vertical dividing wall where two contiguous vertical flues are concerned. Alternatively, two hoods may be arranged back to back in a vertical flue to be independently movable. The casing of the valve is lined with refractory material.
Patent GB-604226-A (GB)
Title: Means for transferring sliced bread from slicing machines
IPC: B26D7/06
Filed: 1945-08-22
Abstract: 604,226. Endless-chain conveyers. PETSKEYES, C. H. Aug. 22, 1945, No. 21418. [Class 78 (i)] A loaf of bread 54, Fig. 3, which has been sliced in a multiple knife slicing machine as described in Specification 597,710, [Group I], is transferred from the shoot 13 of the slicing machine to the conveyer 15 of wrapping mechanism as described in Specification 602,181, [Group XVII], the transfer being done by plates 25, 26 which receive the sliced loaf from 13 and then rock down in synchronism to slide it down in front of one or other of the pushers 16 of the wrapping machine conveyer 15, the plate 25 being slidable underneath the plate 26 when adjusted by a handle 47, Fig. 3, so as to cause the loaf to be pushed along by either the pusher 16<1> or to be missed by it and then be pushed along by the next succeeding pusher 16. The plate 25 slides within grooves formed by the bent-down sides of the plate 26. The plates 25, 26 are coupled together by pairs of toggles 31, 32 coupled by a link 36 to give parallel sliding when the plate 25 is slid by a link 37 pivoted at 39 to a bearing sleeve 40 on a shaft 42, rocked as necessary by the hand lever 47. This adjustment can also be done during full operation. The plates are carried by the shaft 35 which is rocked down by the cam 52 coupled to the main drive mechanism.
Patent GB-710752-A (GB)
Title: Improvements in turbo-jet engine discharge nozzles
IPC: F02K1/15
Filed: 1950-08-31
Abstract: 710,752. Jet-propulsion plant COMPAGNIE ELECTROMECANIQUE. Aug. 31, 1950 [Feb. 20, 1950], No. 21500/50. Class 110(3) In a turbo-jet engine gas discharge nozzle comprising an annular auxiliary gas discharge nozzle 6 disposed concentrically around a main discharge nozzle 5 having reheat burners 4 therein. the inlet of the 'nozzle 6 is disposed between the cutlet of the turbine and the reheat burners and controlled by valve means 8 disposed upstream thereof to open said inlet when the reheat burners are ignited, the outlet of the nozzle 6 being disposed in the transverse plane of the outlet of the nozzle 5. The valve 8 is operated through arms 9 and a tube 10 by an oil operated relay 11; the actuation of the valve and the supply of fuel to the burners 4 being controlled by a governor. Cooling air is fed through struts 3, a cone 2, the members 9. 10 and ports 13 into either the nozzle 5 or the nozzle 6 according to the setting of the valve 8. The nozzle 6 may be subdivided into a plurality of segmental sections.
Patent GB-714931-A (GB)
Title: Improvements in bolt shooting devices
IPC: B25C1/12
Filed: 1951-09-12
Abstract: 714,931. Bolt-firing devices. HILTI, M, [trading as MASCHINENBAU HILTI OHG], and RAMECO SOC.-ANON.. Sept. 12, 1951 [July 18, 1951], No. 21504/51. Class 119  A device for shooting bolts 7 into any material 57 has a handle 34 at the end opposite the muzzle, the handle constituting the trigger and being movable in a direction transverse to the axis of the barrel 1 for releasing the striker pin under the action of its spring. In the device shown the handle is mounted for rotational movement about the axis of the barrel against the action of a tension spring 37. When the muzzle of the barrel is pressed against the material 57 it moves relatively to a barrel guide 22 to compress a spring 29 which extends between the flange of a housing 30 and a surface of a striker guide 16 screwed to the barrel 1. The movement of the barrel also compresses a spring 27 surrounding the striker 19, 24, and extending between a plate 25, see also Fig. 6, on the striker and a striker guide 28 extending from the handle 34. Normally the head 26 of the striker is unable to reach the cartridge 15 by reason of the fact that the plate 25 is out of register with apertures 23 in the guide 16, but these parts are brought into register to effect firing when the handle 34 has been suitably rotated. The handle is held in place by plug-like coupling elements 44, 45, which can be withdrawn to dismantle the gun when a ring 46 with resilient tongues 47 is slidden down the barrel guide. A cup 50 surrounds the muzzle end of the barrel and is fitted with a grooved annular packing member 54. The cartridge holder 3 is removable and may be replaced by others containing, for instance, two bores containing cartridges of different diameters.
Patent GB-423016-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/52
Filed: 1934-07-23
Abstract: 423,016. Metallic-vapour apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. July 23, 1934, No. 21508. Convention date, Sept. 13, 1933. Drawings to Specification. [Class 39 (i)] [See also Group XIII] In an electric discharge tube which has a metal-vapour filling and is surrounded by an exhausted space which does not communicate with the discharge space and does not contain a source of heat, there is provided in the exhausted space a substance which upon increase in temperature produces a gas or vapour and upon cooling returns to the liquid or solid state. Variations in the temperature of the outer wall of the envelope produce corresponding variations in the pressure and thermal conductivity of the gas or vapour in the outer envelope which compensate for the variations in thermal radiation from the tube, and render the temperature of the tube independent of the external conditions. An example is described having a small quantity of mercury provided in an exhausted doublewalled vessel surrounding a discharge tube having a filling of sodium and neon. Vaporizable substances, such as high-boiling oils, mercuric bromide or bromnaphthalene or reversibly dissociable substances, such as sodium, boro-fluoride or acid potassium pyrophosphate, may be used. Solid materials may be spread in a thin transparent layer over portions of the envelope. If, as in Specification 417,441, a screen is provided between the walls of the envelope, a dissociable substance, such as manganese carbonate, may be provided on the screen. Fillings of difficultly volatile metals such as sodium, cadimum, thallium or magnesium may be used. Specification 392,796 also is referred to.
Patent GB-500214-A (GB)
Title: Improvements in and relating to electric control devices, particularly electromagnetic relays for controlling large capacity high voltage circuit breakers
IPC: H01H71/24
Filed: 1937-08-04
Abstract: 500,214. Electrically-released switches; protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 4, 1937, No. 21513. Convention date, Aug. 4, 1936. [Class 38 (v)] A high-speed, large current magnetic relay device which may be used to cause the simultaneous tripping of a number of circuitbreakers 33 in a polyphase circuit comprises an armature 10 held by a magnet 12 in the attracted position shown against the action of biassing springs, a winding 19 adapted when energized to oppose the flux of the magnet 12 through the armature and thereby release it and a winding 20 adapted when energized to assist the flux of the magnet 12 through the armature and thereby restore it to its original position. The magnet 12 is preferably a permanent magnet with poles 14 and the coils 19, 20 are wound on a transverse member as shown. The winding 19 may be energized by the closing of a hand switch 43 or an overload protective relay 41, and the establishmerit of flux is hastened by the discharge of a condenser 45. In the arrangement shown, when the armature 10 is thus released, it closes at 16, 17 three parallel circuits through the release coils 35 of the circuit-breakers 33. These may function in the same manner as the relay of the invention, the coils 35 opposing the flux of magnets 51 so that the catches 34 are released and in turn the contacts 33. A condenser 54 speeds up the flux-building by discharging. With the opening of the contacts 33, contacts 36 will also open, breaking the circuit of the coils 35 and contacts 38 will close the circuit of a relay 46 which then closes at 47 the circuit of the reset winding 20 whereby the armature 10 is brought back to its original position. Supplementary trip coils 35<1> may be provided on the circuitbreakers 33 to cause the simultaneous opening of all of them in case one opens accidentally. When the latter occurs, a circuit is completed through auxiliary contacts 38<1> of the particular circuit-breaker to a relay 55 which completes at 56 the circuit of all the trip-coils 35<1>. Specification 424,746, [Group II], is referred to.
Patent GB-933873-A (GB)
Title: Method of producing grain oriented electrical steel
IPC: H01F1/16
Filed: 1960-06-20
Abstract: Grain-oriented electrical steel containing 2.75-3.5% silicon is heat-treated prior to the conventional rolling/annealing process by treating in the range 1450-1750 DEG  F., quenching drastically (e.g. at a rate exceeding 75 DEG  F./sec.) to retain carbides in solution and then causing carbides to precipitate in lenticular form by holding in the range 600-900 DEG  F.  The treatments may be carried out by allowing the steel to cool slowly through the appropriate range, e.g. from a finishing temperature of 1750 DEG  F. after hot-rolling, rather than at a constant temperature.  After the first cold-rolling stage the steel may be annealed at 1600-1725 DEG  F., preferably in an inert atmosphere having a maximum dewpoint of 25 DEG F., and the second anneal may be at 1400-1500 DEG  F. in an inert or reducing atmosphere preferably containing over 2% of water vapour. The steel is finally box-annealed above 2000 DEG  F. in a dry, preferably hydrogen, atmosphere.  The steel generally contains 0.05% maximum carbon, and 0.15% maximum manganese, the balance being iron and impurities.
Patent GB-1341525-A (GB)
IPC: A24B15/16
Filed: 1972-05-09
Abstract: 1341525 Tobacco and tobacco substitute compositions AMF INC 9 May 1972 [13 May 1971] 21620/72 Heading A2C Smoking compositions comprising tobacco or tobacco substitutes include ammonium polyphosphates having an average molecular weight of the order of 20,000 to 1,500,000. In the examples, reconstituted sheets are formed by casting aqueous slurries of compositions comprising ammonium polyphosphates and either tobacco particles, partially oxidised cellulose, or maize silk. Other exemplified ingredients are refined sulphite pulp, methyl cellulose and ethylhydroxyethyl cellulose. In one example, a blend of Burley stem and Wisconsin leaf dust is utilised. In some of the examples the slurry is foamed with air before casting. Ingredients specified but not exemplified include: peat and alfalfa as tobacco substitutes; and a number of known binders and foam stabilizers.
Patent GB-796164-A (GB)
Title: Improvements in or relating to nuclear power reactors
Inventor: GOODLET BRIAN LAIDLAW
IPC: G21C1/08
Filed: 1955-07-26
Abstract: 796,164. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 25, 1956 [July 26, 1955], No. 21639/55. Class 39(4). In a nuclear reactor, water or heavy water is circulated through the reactor to serve as the moderator and coolant; the heat is transferred by the water, and only small quantities of steam are produced, for stabilizing purposes, at the core surfaces, the water being held at saturation pressure. As shown, the reactor 1 is enclosed in pressure vessel 2a and cooled and moderated by water which also circulates through the heat exchanger 4a. Gaseous decomposition products are removed by pump 9 from the blow-off condenser 7. The latter receives, through safety valve 6, vapour from A, which is condensed and returned to 2a. In further embodiments, not shown, the pressure in vessel 2a is increased by connecting it to a raised tank and the heat rejected in the blow-off condenser is absorbed in the heat exchanger.
Patent GB-1107356-A (GB)
Title: Improvements in process for coating articles with plastics materials
IPC: B05D7/14
Filed: 1965-05-21
Abstract: A coated unprimed metal substrate is produced by coating the substrate with a dispersion containing polyvinyl fluoride or a copolymer of vinyl fluoride containing at least 75% by weight of the total copolymer of vinyl fluoride units and a latent solvent therefor, defined as a liquid medium having substantially no solvent action on the polymer at room temperature but is capable of coalescing the polymer particles at elevated temperatures, and heating the coating at a coalescing temperature in excess of 450 DEG F e.g. 450 to 800 DEG F, for a period of time of 30 seconds to 15 minutes e.g. 2 to 10 minutes, without the application of pressure, to effect fusion of the coating on the unprimed metal substrate by vapourizing the solvent from the coating and leaving the polyvinyl fluoride coating on the substrate as a coalesced homogeneous structure substantially free of the liquid phase of the original dispersion.  Examples of latent solvents are given.  The dispersion may be applied by spraying, dipping or rolling.  Metals specified are steel, aluminium, iron, magnesium, nickel and alloys thereof.  The mono-ethylenically unsaturated monomers which may be copolymerized with vinyl fluoride may be mono-ethylenic hydrocarbons, halogen-substituted mono-ethylenic hydrocarbons, vinyl esters, ethers, ketones N-vinyl imides, acrylic and methacrylic acids and their derivatives, maleic and fumaric acid derivatives, and propenyl esters, examples of which are given.
Patent GB-218541-A (GB)
Abstract: 218,541. Schlesinger, L. Oct. 29, 1923. Lavatory basin supply and waste fittings; lavatory basins.-A screw-down valve 30 operated by a handle 32 admits water from a pipe 13 to a circular sprayer 4 which delivers a spray for the simultaneous use of a number of users who stand round a circular basin 1 supported by a hollow pedestal 2. The pipe 13 is connected to a mixing valve 38 for hot and cold water, end passes centrally along the waste pipe 10. Waste water passes away by a grating 7. A glass receptacle 22 for liquid soap and/or a tray 23 for hard soap is provided. The receptacle is fitted with a number of valved delivery nozzles 27.
Patent GB-460964-A (GB)
Title: Improvements in or relating to burners, more particularly for use with furnaces worked with liquid fuel, and a method of working same
IPC: F23D11/24
Filed: 1935-08-01
Abstract: 460,964. Liqnid-fuel furnaces. SOKAL, S. (Henschel & Sohn Akt.-Ges.) Aug. 1, 1935, No. 21867. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 3, 1936.] Drawings to Specification. [Class 51 (i)] [Also in Group XI] An electrically driven pump and blower supplying liquid fuel and air to a furnace are continued in operation when combustion is not required, a valve in the fuel conduit being opened to byepass the fuel back to the reservoir and a valve in the air conduct being closed except for a small passage allowing scavenging air to pass to the furnace. The fuel and air valves may be operated by electromagnets arranged in circuit with the motor driving the pump and blower.
Patent GB-166451-A (GB)
Title: Improvements relating to the induction pipes of internal combustion engines having radial cylinders
IPC: F02M35/10
Filed: 1920-07-21
Abstract: 166,451. Hall, W., and Yano, S. July 21, 1920. No Patent granted (Sealing fee not paid). Four - stroke - cycle engines; cylinders, pipes for. -The supply passages for an engine having fifty - four radial cylinders disposed in six groups at right-angles to the crank-shaft comprises a chamber containing three annular compartments D, E, F, each of which is connected to one or more carburettors. Each compartment is connected by pipes G to two adjacent groups of cylinders.