baber/WOPTO huggingface dataset:
Patent GB-894499-A (GB)
Title: Method of manufacturing fine-grained steels and improved steels obtained thereby
IPC: C21C7/00
Filed: 1959-05-25
Abstract: Fine-grained carbon or alloy steel containing less than 1,7%C. also contains 0,001% to 0,05% Ca after treatment while molten with an alloy containing .Ca.15-40% .Fe.4-60% .one or more of Al, Si.5-55% of each .Mn.5-55% of each .Ni.0- 5% <TABS:0894499/II/1> It is preferable to use with the alloy either calcium or magnesium fluoride as flux. An alloy steel according to the invention may contain one or more of Si, Mn, Ni, Co, Cr, Cu, Al, W, Mo, V, Ti and Zr.
Patent GB-373452-A (GB)
Title: Improvements in and relating to voltage regulating transformers
IPC: H01F29/12
Filed: 1931-06-18
Abstract: 373,452. Regulating transformers. LÍBL, O., 2, Neue Bismarckstrasse, Hermsdorf, Berlin. June 18, 1931, No. 17693. Addition to 371,670. [Class 3S (ii).] Relates to regulating transformers comprising primary windings on rectilinearly movable core parts to cooperating with secondary windings on fixed core parts as described in the parent Specification, and consists in providing for use on polyphase c i rcuits a number of such transformers in line with their movable windings on a common operating shaft. Fig. 1 shows an arrangement o f three such transformers for use on a three-phase system, the transformers having separate magnetic circuits. Fig. 2 shows an alternative arrangement in which the magnetic circuits are combined in a three-limbed core.
Patent GB-418193-A (GB)
Title: Improvements relating to electric generators particularly applicable for use in electric arc welding
IPC: H02K23/20
Filed: 1934-06-15
Abstract: 418,193. Exciting dynamos. SUNDER. LAND FORGE & ENGINEERING CO., Ltd., and DAVISON, J. W., St. Luke's Road, Pallion, Sunderland. June 15, 1934, No. 17769. [Class 35.] A shunt wound dynamo with divided poles has additional coils connected between a main and an auxiliary brush and opposing series coils disposed on the halves of the poles which are weakened by armature reaction. In the form shown, the north pole e pieces 5, 6 and the south pole-pieces 7, 8 carry coils 15 connected between the auxiliary brush 4 and the main brush 2 in addition to the shunt coils 12 while the pole-pieces 6, 8 which are weakened by armature reaction have series coils 16 which oppose the coils 12, 15. A cumulative series winding may be placed on the pole-pieces 5, 7 and the commutating poles 9, 10 may be omitted.
Patent GB-545915-A (GB)
Title: Improvements in or relating to resilient engine mounts
IPC: B64D27/04
Filed: 1940-12-17
Abstract: 545,915. Aircraft engine mountings. UNITED AIRCRAFT CORPORATION. Dec. 17, 1940, No. 17778. Convention date, Dec. 20, 1939. [Class 4] [Also in Group XXVI] An engine, particularly an aircraft engine, is connected by spring arms to a ring mounted resiliently on the framework of the aircraft. In the construction shown in Figs. 2 and 4, the engine 10 is connected to a ring 18 by converging spring-arms 14 each consisting of a tube which tapers from the ends to an elliptical waist, the arrangement providing different spring-rates in directions tangential and radial to the ring. Each arm is formed with a foot 60 secured to the engine by bolts 58, and a threaded stem 54 which is parallel to the axes of the ring and extends through a sleeve 52 in the ring and into a tube 34 having a cap 42 welded to the tube. The stem has a key 55 engaging a slot in the tube, and is secured by a tubular nut 62. The nuts are accessible through the outer ends of the tubes 34. The sides of the tubes may be cut away to facilitate access to the nuts. The tubes 34 form part of a welded tubular frame 22, 24, 32 which is secured to the framework of the aircraft by bolts passing through caps 44.
Patent GB-576460-A (GB)
Title: Improvements in and relating to high-frequency oscillators
IPC: H05B6/04
Filed: 1944-09-19
Abstract: 576,460. Valve generating circuits. RADIO TRANSMISSION EQUIPMENT, Ltd., GRINSTEAD, L., and ZANDSTRA, K. A. Sept. 19, 1944, No. 17888. [Class 40 (v)] A high-frequency oscillator comprises in series connection with the tank circuit an auxiliary coil mounted coaxially with the tank inductance and. movable in the axial direction to vary the coupling and so match the impedance to the valve. In the Figure, the conventional Colpitts oscillator is modified by the addition of coil La mounted coaxially with tank inductance L1, L2 and, having a smaller diameter, can slide within it. The central part of the tank inductance L3 may constitute the inductor of an H.F. furnace.
Patent GB-1504284-A (GB)
Title: Dental alloys
IPC: A61K6/847
Filed: 1974-04-24
Abstract: 1504284 Nickel base dental alloy BOC INTERNATIONAL Ltd 11 April 1975 [24 April 1974] 17938/74 Heading C7A A dental alloy of composition:- C 0 to 0À25% Cr 10 to 25%  Si 0À5 to 7À5% Mn 0À1 to 1À5% Fe 0 to 3% B 0À1 to 0À6% Cu 0 to 3% Ni Balance.
Patent GB-1496309-A (GB)
Title: Glucose isomerisation
IPC: C12P19/24
Filed: 1976-05-03
Abstract: Fructose is obtained by isomerisation of glucose, using for the isomerisation a mutant, which has a low or virtually zero intracellular tyrosinase activity, of Streptomyces glaucescens NRRL B-2900 or a glucose isomerase isolated therefrom. The glucose isomerase can be obtained by cultivation of a mutant, which has a low or virtually zero intracellular tyrosinase activity, of Streptomyces glaucescens NRRL B-2900 in a nutrient medium.
Patent GB-252925-A (GB)
Title: Improvements in submarine mines
IPC: F42B22/10
Filed: 1925-07-14
Abstract: 252,925. Armstrong, Whitworth, &. Co., Ltd., Sir W. G., and Hadcock, Sir A. G. July 14, 1925. Mines, marine. - Relates to submarine mines automatically anchored at a given depth determined by a plummet f, .and consists in providing a spring e for ejecting the plummet from the sinker a. As shown, the plummet f is held within brackets b, c and a stirrup d by a catch g, which is released in the usual way when the mine is launched. The spring e is situated between the plummet and the stirrup d and expels the plummet when the catch g is released whatever be the position of the sinker.
Patent GB-274843-A (GB)
Title: Improvements relating to fire extinguishers
IPC: A62C35/60
Filed: 1927-07-07
Abstract: 274,843. Phylax Feuerl÷sch-Automaten-Bau Ges. July 21, 1926, [Convention date]. Fire-extinguishing by pulverulent materials; grenades; sprinklers, automatic. - A fire-extinguisher of the kind comprising a casing a housing an interchangeable vessel m containing extinguishing medium, the cover n and bottom n<1> of the vessel being so constructed as to be displaced or ruptured by the explosion of a firing charge, has, within a cap f<1> of the casing, an explosive charge f which, when ignited by fuse cords arranged within tubes g, drives the cover inwards, ruptures the bottom, and scatters the extinguishing medium. The casing a is secured above the place to be protected by bolts t. The vessel m containing, for example, carbon-tetrachloride, is held within the casing by a ring c. The bottom n<1> is weakened by radial or other grooves.
Patent GB-1010603-A (GB)
Title: Thermoplastic articles, and methods and apparatus for manufacturing them
IPC: B65D1/42
Filed: 1962-05-10
Abstract: 1,010,603. Food containers. ILLINOIS TOOL WORKS Inc. May 10, 1962 [May 10, 1961], No. 18049/62. Heading B8D. [Also in Divisions A4 and B5] Containers primarily intended for food are moulded with a rounded bead 38a, Fig. 1, (see Division B5), and may be provided with a sealing surface 60, Fig. 1A, particularly when used with closures as described in Specification 934,067. Resilient stacking means 48, described in Specification 865,024, are provided having interfering shoulders 50 and 52. In the embodiment of Fig. 2, the stacking means are provided by either a shoulder 68 or a configuration as at 48 in Fig. 1, with the portion 66 of bead 38b, taking the place of shoulder 52, which co-operate with portion 66 of a second like container. Specifications 926,359 and 934,437 are referred to.
Patent GB-278321-A (GB)
IPC: F42B6/00
Filed: 1927-07-08
Abstract: 278,321. Fox Gun Co., A. H., (Assignees of Henke, F.). Sept. 30, 1926, [Convention date]. Gun cartridges-Relates to toy-gun cartridges of the kind containing a spring plunger for ejecting a bullet. According to the invention, the plunger 27 has openings 30, 33 therethrough, and is held cocked against a spring 35 by one or two detente 15 pivoted at 13 and controlled by a pushbutton 22 resembling the primer of cartridges used in firearms. When the pushbutton is pressed in by a firing pin on the toy gun, the detents 15 are deflected and release the plunger 27, which is driven against a light wooden ball 5, the through passage 30, 33 preventing pneumatic pressure in front of the plunger. The plunger is finally stopped by a shoulder 3 near the mouth of the cartridge case 1, and can be pushed in again and recocked by means of a tool inserted in the mouth of the cartridge. The detents are brought back to their engaging positions by the rearward pressure of the spring 35 or by separate transversely disposed springs. The pushbutton is simultaneously returned to its original position flush with the back of the cartridge by the tail ends 19 of the detents 15 or by a separate spring bearing on the shoulder 24 of the pushbutton. The pushbutton is mounted in a thimble 7, which is pushed into the tube 1 of the cartridge and then secured by the crimping of a groove 3 in the tube 1 forcing the material of the tube into a groove 14 in the thimble 7.
Patent GB-964672-A (GB)
Title: Improvements in or relating to lubricants
Inventor: WAIGHT FRANCIS HENRY
IPC: C08G65/18
Filed: 1962-05-11
Abstract: An ester lubricant comprises a major proportion of a diester formed from a C6-20 aliphatic dicarboxylic acid and a C6-12 branched chain aliphatic monohydric alcohol, and a minor proportion of a soluble polymer containing 2-20 repeating units of a substituted oxetane wherein at least one of the three carbon atoms of the oxetane ring is disubstituted and has either both substituents, which need not be the same, chosen from the group consisting of X, CH2X, CHX2, and CX3, where X is Cl or Bt, or one substituent from this group, the other being methyl or ethyl, provided that no halogen atom is attached to any carbon atom which is adjacent to a methyl, methylene or methylidyne group. The oxetane polymer is preferably the dimer, trimer or tetramer of 3,3-bis-(chloromethyl)-oxetane, and several diester oils are specified. The ester oil may be thickened by a polyacrylate or polyalkylacrylate, e.g. polylaurylmethacrylate, or by an ether of a polyoxyalkylene glycol, or by a complex ester derived from a monohydric alcohol, a dibasic acid, and a glycol or polyoxyalkylene glycol.  Further optional additives mentioned include phenothiazine, 3,7-dioctyl phenothiazine, phenyl-a -naphthylamine, metal petroleum sulphonates, azelaic and adipic acids, 5-methyl benzotriazole, tri-cresyl phosphate and other organic phosphates and phosphites, chlorinated di- and poly-phenyls, and silicone anti-foaming agents.  Specification 786,950 is referred to.
Patent GB-909738-A (GB)
Title: Improvements in or relating to writing desks, cocktail cabinets and the like
IPC: A47B17/04
Filed: 1961-05-18
Abstract: 909,738. Cabinets &c. FISHER, G. F. May 18, 1961, No. 18210/61. Class 52 (1). A writing desk has a frame 1 enclosing slidably mounted drawers 2, 3 of which drawer 2 has a hinged flat lid 4 providing a writing surface 6 and upper drawer 3 is divided into pigeon-holes and rests on drawer 2, a lid 8 for the desk being mounted on Y-shaped brackets 9 pivotable on plates 10 and having pins 11, 12 slidably engaging with slots 13, 14 in the sides of the drawers so that when the desk lid is raised drawer 2 is moved outwards and drawer 3 moves slightly inwards.
Patent GB-832144-A (GB)
Title: Improvements in carburetor
IPC: F02M17/04
Filed: 1958-06-06
Abstract: 832,144. Carburetters. BROWN ENGINE PRODUCTS Inc. June 6, 1958 [May 7, 1958], No. 18222/58. Class 7(3) In a carburetter having a body structure defining a fuel passage for conducting liquid fuel from a fuel source pressurized by a flexible diaphragm pump means 25 through a first needle valve 34 to a fuel reservoir 35 and from the fuel reservoir through a second needle valve 55 to a Venturi charge forming chamber 54, the carburetter body structure is formed with a fuel well 65 in the fuel passage immediately upstream from the first needle valve to provide a reserve of fuel for acceleration and to serve as a pressure surge compensation chamber. The body structure 10 permits the idling jet orifices 52 and 53 to communicate with the chamber 51 at either one of two fuel delivery positions. Also the design permits the shaft 62 of the throttle butterfly valve 61 to be disposed either horizontally or vertically. As shown the diaphragm pump is worked by crank case pressure communicated to the chamber 28. From the reservoir 35 the fuel exits through a passage 45 into a tubular filtering element 46. Thence the fuel may flow either through an idling passage 47 or a main outlet passage 47<SP>1</SP>. Flow through the idling passage 47 into an auxiliary chamber 48 may be selectively con-trolled by an idle adjustment needle valve 49. The auxiliary chamber 48 is separated from the reservoir 35 by a removable plug 50. The fuel passes from the auxiliary chamber 48 into a charge forming chamber 51 through either a primary idling jet orifice 52 or a secondary idling jet orifice 53. The charge forming chamber 51 is at the outlet end of a Venturi 54. Flow of fuel from the reservoir 35 through the main outlet passage 47' is controlled by a high speed adjustment needle valve 55. Fuel passing this needle valve enters a high speed jet chamber 56 (which is closed from the fuel reservoir by a plug 57) and passes into the throat of the Venturi 54 through a high speed jet orifice 58. A cylindrical plug of felt may be inserted in the well 70 rather than the tubular element shown. The space below the diaphragm 42 comunicates with the atmosphere.
Patent GB-514017-A (GB)
Title: Improvements relating to extrusion devices for substances of semi-liquid consistency
IPC: B65D83/00
Filed: 1938-06-20
Abstract: 514,017. Piston-extrusion apparatus. BALE, J. H. D. June 20, 1938, No. 18237. [Class 102 (ii)] A device for delivering semi-liquid substances comprises a casing 1 having an outlet 2 and a spout 3, provided with a cover 4, and an inner barrel 5, supported by a spring 7 and having an outlet 6. A container 9, having an outlet 10, is fitted firmly in the barrel 5. When the piston 11 is depressed, the barrel 5 moves until the outlets 2, 6 register and delivery takes place. The barrel 5 is guided by a screw 8 engaging a slot in the barrel.
Patent GB-596053-A (GB)
Title: Improvements in spring wheels and particularly pneumatic tyred wheels
IPC: B60B3/08
Filed: 1945-07-17
Abstract: 596,053. Vehicle wheels. RILEY, N. G. July 17, 1945, No. 18241. [Class 144 (i)] A wheel comprises a pair of discs 2 formed with flanged rim-portions 1 to receive a pneumatic &c. tyre which are secured together, and to the hub 3, at the centre (as by bolts 4), the outer portions of the discs being free to splay apart under load shocks. As shown, the separation of the discs may be controlled by stop-bolts 5 fitted with springs 6. In a modification (not shown), the centre portion of the wheel may be seated in a rubber cushion fitted between the hub-flange and an outer clamping plate.
Patent GB-576138-A (GB)
Title: Improvements in or relating to the distillation of heat-polymerizable materials
IPC: C07C17/42
Filed: 1943-11-03
Abstract: The polymerization of a heat-polymerizable vinyl compound is inhibited at all stages of distillation by conducting it in the presence of a small proportion of an inhibitor for the polymerization, this inhibitor being soluble in the compound and having substantially the same vapour pressure characteristics as the compound at the temperature of the distillation.  Catechols, resorcinols and particularly their alkyl derivatives are, in general, soluble in vinyl compounds and hence effective if they possess the correct vapour pressure relationship.  When mixed dichlorostyrenes were distilled at a pressure of 1 to 3 mm., using 0.1 to 0.4 per cent tertiary butylcatechol as inhibitor, the yield of monomeric dichlorostyrene distilling at 67 to 69 DEG  C. was 93 per cent. Suitable fractionating apparatus is described in the Specification (see Group III).
Patent GB-558722-A (GB)
Title: A process for the manufacture of copper powder
IPC: C25C5/02
Filed: 1942-12-23
Abstract: 558,722. Copper powder. BERK & CO., Ltd., F. W., and MEHL, E. Dec. 23, 1942, No. 18265. [Class 41] Copper powder is electrolytically deposited from an electrolyte containing hydrochloric acid using anodes of brass; chlorides of sodium, potassium, ammonium, or zinc may also be present. The cathode may be separated or surrounded by a diaphragm of asbestos cloth, and the electrolyte may be circulated through the cathode compartment. Specification 264,116, [Class 41], is referred to.
Patent GB-630463-A (GB)
Title: Improved process for the colouration of paper
IPC: D21H21/28
Filed: 1947-07-10
Abstract: Paper is dyed at any stage in its manufacture with a dyestuff containing quaternary ammonium, ternary sulphonium or isothiouronium salt groups, each of which is attached through a methylene radical to the carbon atom of an aromatic nucleus. Suitable dyestuffs are those described in Specifications 576,234, 576,270, 587,636, 613,980, 613,982 and 613,983.  The dyestuff may be added to the paper pulp in the beater, or added dry or in solution to the stream of pulp between the beater and the machine, with or without sizing agents. Alternatively, the dyestuff may be applied to the finished and dried paper.  In the examples: (1) pulp is coloured in the beater by the addition of a solution of the dyestuff obtained by the reaction of tetramethylthiourea with a mixture of copper di- and tri-(chlormethyl)phthalocyanines, together with rosin soap and aluminium sulphate; (2) coloured blotting paper is obtained by adding to the pulp a solution of the dyestuff described in example 1 of Specification 576,270; (3) tissue paper is passed through a solution of the dyestuff obtained from tetramethylthiourea and di(chlormethyl)isodibenzanthrone. Specifications 427,089, 435,249, 455,352, 480,358 and 522,293 also are referred to.
Patent GB-213486-A (GB)
Title: Process of purifying chlorine and other corrosive gases
IPC: C01B7/00
Filed: 1923-07-16
Abstract: 213,486. Marks, E. C. R., (Carbide & Carbon Chemicals Corporation). July 16, 1923. Separating gaseous mixtures by liquefaction.- A corrosive constituent is liquefied from a mixture containing much more volatile gases by compressing the mixture to a pressure not much greater than two atmospheres cooling the compressed mixture in a low temperature zone to liquefy a high percentage of the corrosive constituent, and returning the liquid so produced in rectifying contact with relatively warm gas passing to the low temperature zone. The purification of electrolytic chlorine, and the separation of sulphur dioxide from burner gases and of chlorides of carbon from the mixture obtained in the chlorination of methane are mentioned. In the apparatus shown, impure chlorine enters through one of two coils 20, 20a wherein it is cooled to about 25 C. and is passed into a rectifying column 2 in which the pressure may be 10 to 15 lb. Liquid falls to the bottom and may be drawn off into steel cylinders cooled to 25 C. The impure gas rises through the upper screens 22 into a condenser 1 in which further liquefaction takes place; the gaseous impurities pass away through the pipe 21 with some chlorine, while the liquid chlorine passes down through the rectifier, and is purified. The condenser is cooled by ethane passing in circuit through a compressor 4, cooler 7 and passage 9 into a space 12 around the condenser 1, wherein it is expanded from an initial pressure of say 800 lb. to a pressure of 15 lb. The cooled expanded gas passes around the passage 9 to the jacket 14 of a heat exchanger, in which it cools brine circulated in a passage 16, and back to the compressor. The brine is circulated by a pump 17 to cool the vessels 19, 19<a> through which the coils 20, 20a pass. Either of these coils may be cut out of operation, and freed from condensed impurities by blowing air into it through a pipe 24.
Patent GB-354471-A (GB)
Title: Improvements in or relating to mechanism for controlling the flow of fluids
IPC: F24H9/20
Filed: 1930-06-16
Abstract: 354,471. Magnetically-actuated valves. EWART, J. H., 346, Euston Road, London. June 16, 1930, No. 18410. [Class 135.] Means for controlling the flow of one fluid in accordance with the flow of a second fluid comprises a magnetically-actuated, gravityloaded valve controlling the flow of the first fluid adapted to open when the magnetic flux is decreased by the action of the second fluid. The Figure shows the application of the invention to a device for controlling the gas supplied to a geyser by the water supply. Water admitted through a conduit 6 acts on a floating disc 17 to lift it above a shoulder 13 and in so doing lifts a permanent magnet 16 guided by lugs 18 out of contact with a copper partition 5. The gas valve 21 is adjustably secured to a spindle 20 having an armature 19 adjacent the partition and adapted, when the magnet is in contact with the partition, to be attracted to hold the gas valve closed. The magnet may be counterbalanced and may be actuated by a piston, an expansible element or lipping tank connected through a lever chain or other mechanism. The poles of the magnet may be stepped to actuate two valves in succession. The device may be used in connection with an oxy-acetylene burner.
Patent GB-861130-A (GB)
Title: An improved method of producing power utilising high pressure elastic fluid and an improved tubulous steam generating unit
IPC: F22G5/06
Filed: 1957-06-11
Abstract: 861,130. Regulating steam temperature in boilers. BABCOCK & WILCOX Ltd. June 11, 1957 [June 13, 1956], No. 18440/57. Class 123(3) A water-tube steam boiler has an upright, hopper-bottom furnace 24 lined with steam generating tubes extending from lower headers 28, 32 to an upper steam and water drum 38 and is fired by burners 116...118, the furnace gases flowing between widely spaced platens 106, 108 of reheater tubes in the upper part of the furnace into a lateral pass 26 in which are disposed more narrowly spaced reheater platens 110 and platens 92, 78 of secondary and primary superheater tubes respectively. The gases leaving the pass 26 flow downwardly in a pass 54 lined with superheater tubes and containing banks 160, 162 of economizer tubes to discharge from the unit through an outlet 168. Cooled flue gases are withdrawn from the bottom of the downpass by a fan 122 which delivers them into the throat 144 of the hopper bottom of the furnace through a duct 140, 142 controlled by dampers 146 and into a furnace region immediately below the reheater platens 106, 108 through a duct 126 controlled by dampers 136. In operation, to maintain the reheat temperature constant over a wide load range, the flow of gases through the duct 126 is increased from a minimum at a partial load corresponding to the lowest load at which the superheat temperature can be maintained to a maximum at full load, the effect of the introduction of cool gas immediately before the reheater being to reduce the radiant heat adsorption of the panels 106, 108. To maintain the superheat temperature constant over a wide load range, an increasing flow of cool flue gas is provided through the duct 140, 142 as the load decreases, the effect of introducing gas into the hopper bottom of the furnace being to decrease the proportion of available heat absorbed by the furnace wall tubes and thus to increase the heat input to the convectively heated superheaters 78, 92. The dampers 136, 146 may be controlled auto matically by means primarily responsive to representations of reheat and superheat temperatures respectively. Specifications 526,825 and 656,551 are referred to.