baber/WOPTO huggingface dataset:
Patent GB-816560-A (GB)
Title: Automatic speed changing transmission for rotary motion
IPC: F16H61/02
Filed: 1957-11-13
Abstract: 816,560. Change-speed gearing. REIS, S. Nov. 13, 1957 [Nov. 14, 1956; Dec. 24, 1956; Jan. 4, 1957], No. 35453/57. Class 80 (2). The planet carrier of an epicyclic gear is moved axially against resilient means, by torque loading on the helical teeth of the gears, to change the gear. An input shaft 1 has a sungear 2, and an output shaft 3 has a sun-gear 4 rigid therewith. The two sun-gears mesh with stepped planets 9, 10 carried by a planet carrier 5 having axial freedom on the shafts 1 and 2. A spring 15 urges the planet carrier towards the shaft 1 so that a cone-shaped member 11 contacts a clutch drum 12 rigid with the shaft 1 to provide a direct drive. An increase in torque passing through the gears 2, 9, 10, 4 which have helical teeth causes the planet carrier to move axially against the spring 15 and member 11 to contact a brake ring 13 and arrest the carrier to provide a ratio drive through the gear. A snap-action for the planet carrier is provided by a spring-ball detent 17 and grooves 19 in the shaft 3. In a modification the planet carrier is connected to the gear casing by a one-way clutch to prevent reverse rotation during the change interval and the spring 15 acts through a lever external to the casing. The lever may be connected to a piston subject to engine intake depression so that the spring pressure is proportional to engine torque. The lever may also be manually operated. An embodiment shows two of the gears connected in series to provide four speeds.
Patent GB-1505510-A (GB)
Title: Skid control system
IPC: B60T8/70
Filed: 1975-04-18
Abstract: 1505510 Skid control systems EATON CORP 18 April 1975 [10 May 1974] 35510/77 Divided out of 1505507 Heading F2F The subject-matter of this Specification is identical with that of parent Specification, but the claims are concerned with a first logic circuit to provide a signal, computed from first or second wheel speeds signals, indicating an incipient skid condition, a second logic circuit providing a second skid signal when the acceleration of the faster of the two wheels exceeds a reference level, and an enabling circuit which passes a second skid signal to relieve brake pressure, only when the signal is initiated while the first skid signal is present.
Patent GB-507506-A (GB)
Title: Improvements in or relating to the manufacture of titanium pigments
IPC: C09C1/36
Filed: 1937-12-22
Abstract: 507,506. Titanium pigments. TITAN CO., @ Dec. 22, 1937, No. 35547. Convention date, Dec. 24, 1936. Addition to 499,153. Drawings to Specification. [Class 95] In the production of stable white titanium dioxide pigments, with modified colour tone, by a process including the step of calcining a titanium pigment containing a trace of tungsten and/or molybdenum, the titanium pigment containing the tungsten and/or molybdenum is exposed to reducing conditions at temperatures between 700 and 1000‹ C., for a short time only, whilst the pigment is heated for calcination purposes, whilst it is cooling subsequent to calcination, or during a special reheating of the calcined pigment. The tungsten and /or molybdenum may be introduced at any stage prior to calculation, and may be added in elemental form or as a compound. Preferred quantities are from 0À001 to 0À0001 per cent on the weight of titanium dioxide. Reducing conditions may be obtained by providing an atmosphere of hydrogen, carbon monoxide or water gas, or by adding a small amount of a carbonaceous material which liberates reducing gases on ignition, and temperatures of about 900‹ C. are preferred. An exposure to reducing conditions of from 1 to 5 seconds is usually sufficient. The process is applicable also to the production of composite titanium pigments, such as titanium dioxide-barium sulphate and titanium dioxide-calcium sulphate pigments. Examples are given.
Patent GB-167717-A (GB)
Title: Improvements relating to music stands or rests
IPC: B42D9/00
Filed: 1920-12-20
Abstract: 167,717. Dickson, M. Dec. 20, 1920. Leaf-holders. - A pivoted counterweighted leaf-holder or finger b is formed from a single piece of metal, the weighted end e being stamped or otherwise made of hollow semi-pear shape formation. The pivot hole c may be plain or countersunk, and may be lined with a flanged fibre bush f.
Patent GB-787340-A (GB)
Title: Improvements in or relating to the regeneration of catalysts
Inventor: LAIT RAYMOND
IPC: B01J23/96
Filed: 1954-12-09
Abstract: In the manufacture of hydrogen peroxide by the alternate hydrogenation and autoxidation of an organic compound dissolved in a solvent or solvent mixture with removal of the hydrogen peroxide formed and recycling of the autoxidized compound, the supported palladium hydrogenation catalyst, after it has become deactivated, is reactivated by treatment with a non-oxidizing aqueous alkaline solution, preferably at a pH greater than 12. The reactivating solution preferably contains a caustic alkali such as sodium hydroxide, but solutions of alkali metal carbonates or phosphates may also be used.  In an example a palladium catalyst prepared according to Specification 718,306 is used in the hydrogenation stage of a process employing 2-ethyl anthraquinone dissolved in a mixture of benzene and methyl cyclohexanol acetate.  Reactivation is carried out by washing with benzene, drying, stirring twice with sodium hydroxide solution at 80 DEG  C., and finally washing and drying.  Reactivation with an aqueous solution containing sodium bicarbonate and sodium hypochlorite, described for comparative purposes, shows inferior results.  Specifications 465,070, 686,574, 741,444, 744,634, 760,737 and French Specification 1,068,893 also are referred to.
Patent GB-367891-A (GB)
Title: Improvements in or relating to electrical glow discharge devices
IPC: H01J17/00
Filed: 1930-11-27
Abstract: 367,891. Discharge lamps. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Weinhart, H. W. ; 61, Dayton Street, Elizabeth, New Jersey, U.S.A.) Nov. 27, 1930, No. 35716. Convention date, Dec. 31, 1929. [Class 39 (i).] A cathode glow is produced in a narrow elongated passage formed in the cathode and open at both ends, the anode being in close proximity to one end of the passage, and the beam projected from the other end. As shown in Fig. 2, the cathode 25 has a cvlindrical passage 27 and a cup-shaped extension 26 within which a disc or plate anode 28, mounted in insulating cement 30, is spaced by an insulator 29. The cup is supported by metal strips 24 from a collar 23. In a modification, the cathode consists of a metal tube embedded in insulating material in which the anode is mounted. As shown in Fig. 8, the cathode consists of a metal thimble 44 cooled by an internal circulation of liquid and having a capillary opening 45, at one end of which the anode 28 is mounted; or the cathode may consist of an externally threaded cylinder mounted in the thimble. In other modifications, (a) the cathode has heat-radiating plates, (b) the passage consists of a narrow slit of rectangular section, and (c) the anode had a conical recess.
Patent GB-349898-A (GB)
IPC: F02M63/00
Filed: 1929-11-22
Abstract: 349,898. Two- and four-stroke oil engines. LEFORT, G., 31, Avenue des Ecoles, Villejuif, Seine, France. Nov. 22, 1929, No. 35777. Convention date, Nov. 24, 1928. [Classes 7 (ii), 7 (iii), and 7 (vi).] Liquid fuel is cracked by being injected into a portion of the burnt gas, and combustion air is added later in the cycle. In a two-stroke engine, a valve 4 isolates a portion of the burnt gas in a chamber 1 just before the exhaust port is uncovered by the piston, and liquid fuel, either alone or with air, is injected by a pump through passages 10, 8, 6. During the compression stroke, the valve 4 is lifted once or twice by a cam acting through a rocker 16 and against a spring 15. In a four-stroke-cycle engine, the chamber 1 is omitted, but the valves are timed so that there is an interval, between the closing of the exhaust valve and the opening of the inlet valve, during which the liquid fuel is injected. Ignition may be by spark or compression. The cylinder head may be made of nickel or copper or an alloy of these metals to assist cracking by catalysis. Reference has been directed by the Comptroller to Specification 2492/05, [Class 7, Air and gas engines].
Patent GB-326187-A (GB)
Title: Improvements in devices for controlling the movements of the carriages of spinning mules
IPC: D01H3/04
Filed: 1928-12-05
Abstract: 326,187. Hurst, R. R. A., and Bentham, H. Dec. 5, 1928. Mules.-In an arrangement for controlling the movement of the carriage at the end of the inward run, in order to avoid twisting of the carriage, the check band is dispensed with and the check scroll a, on the scroll shaft 3, is connected by a flexible connection k to the back shaft b to retard the back shaft and operate through the usual bands between the back shaft and the carriage. A gear c on the shaft b meshes with a gear d mounted on a short shaft f carried by an arm h pivoted on the shaft h. A drum g is mounted on the shaft f and the connection k is secured to the drum. The drum may be mounted loosely on the back shaft and connected thereto by a ratchet device. In order to regulate the tension of the bands the arm h has secured to it an arm m, which bears against a plate q on the floor and can be adjusted by a flexible connection n passing round a pulley p and connected at its other end to an adjusting screw.
Patent GB-1400856-A (GB)
Title: Dynamoelectric machines with liquid cooled rotors
IPC: H02K9/19
Filed: 1972-08-01
Abstract: 1400856 Liquid cooled dynamo-electric machines &c WESTINGHOUSE ELECTRIC CORP 1 Aug 1972 [17 Sept 1971] 35873/72 Heading H2A [Also in Division F2] Sealing means at the coolant inlet and outlet passages of a liquid cooled rotor of a dynamoelectric machine comprises a stationary seal housing 46 surrounding the rotor and having a coolant chamber 47, a seal chamber 49 supplied with sealing liquid at a pressure not exceeding that of the coolant liquid, a collection chamber 50 adjacent the seal chamber 49 for receiving leakage therefrom and supplied with drainage means, and a further chamber 56 adjacent the collection chamber and containing air at a pressure exceeding the pressure in the collection chamber. As shown in Fig. 2, for the inlet end, cooling water is supplied from a stationary pipe 45 through a rotary tube 33 to a bore (31) in the rotor (20, Fig. 1). A stationary seal ring 48 fits in the seal chamber 49 and sealing water at a pressure slightly less than that of the cooling water is supplied through a pipe 52 and radial openings in the ring 48 to the clearance space between the ring and the rotary tube. The collection chamber 50 is maintained at atmospheric pressure and water leaking from the seal ring clearance into the chamber 50 is drained through a drain pipe (53, Fig. 1), the chamber being sealed from outside by a labyrinth seal 55 between it and the air chamber 56 which is maintained at a pressure above atmospheric. The chamber 56 is sealed by a labyrinth seal 57 which may be protected by a chamber 58. At the discharge end of the rotor cooling water is discharged through opposed radial passages 42 into a stationary housing 60 which is sealed on each side by means similar to the inlet end.
Patent GB-950815-A (GB)
Title: Fluid metering and dispensing apparatus
IPC: G01F11/02
Filed: 1962-09-20
Abstract: 950,815. Delivering measured quantities of liquids. PYLES INDUSTRIES Ltd. Sept. 20, 1962 [Sept. 22, 1961], No. 35899/62. Heading B8N. A liquid dispenser with a measuring cylinder 12 has a free differential piston 46 through which a valve rod 62 passes axially. The valve rod is controlled by fluid pressure on a piston 88 biased by a spring 100 in the head portion 24 of the container. In the position of the valve shown in Fig. 1, bores 56 between outer and inner diameters of the piston 46 provide a connection between the back and front of the differential piston head 48 regardless of the position of the piston 46. The pressure of the liquid to be dispensed, which is supplied from pipe 18 to entry port 20, causes the piston 46 to rise to the position shown in Fig. 1 in which the measuring chamber 12 is full. When the valve is displaced to the position shown in Fig. 3 the connection between the back and front of the differential piston head is severed and an exhaust port 36 at the bottom of the measuring chamber 12 is opened. The pressure of liquid to be dispensed at the back of the differential piston head forces the piston downwards to the position shown in Fig. 3 to discharge a measured quantity of the liquid through the exhaust port to an outlet pipe 42. On restoration of the valve rod 62 to the position shown in Fig. 1 the differential piston 46 returns upwardly and the measuring chamber refills as it does so. Withdrawal of the end portion 64 of the valve rod after the exhaust port 36 has been closed causes liquid in the outlet pipe 42, when this liquid is of a viscous nature, to retract and consequently reduces any tendency the liquid may have to drool out of the dispensing nozzle between deliveries. The capacity of the measuring chamber 12 is variable by means of the base plug 28 and lock-nut 30 in the bottom portion 22 of the dispenser.
Patent GB-435853-A (GB)
Title: Improvements relating to the shaping of materials
IPC: B21B1/02
Filed: 1933-12-22
Abstract: 435,853. Rolling, forging, &c. compound ingots. KRUPP AKT.-GES., F., Essen, Germany. Dec. 22, 1933, Nos. 36196 and 36197. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 23, 1934]. [Classes 83 (i), 83 (ii), and 83 (iv)] Metal that tends to become short or fissured during the rolling, forging, or shaping (e.g. a 25 per cent nickel steel) is wholly or partly covered with a protective metal and then worked. The metal may be cast in a mould of protective metal, or dipped in it when molten, or the protective metal may be cast round it, or sprayed or electro-plated on it. Removal of the protective metal may be facilitated by the use of a separating layer of ceramic material, tar varnish or oil, precipitated, sprayed, or diffused on it. Nickel alloys rich in sulphur may be cast round with ordinary soft steel and then rolled without fissuring. Other metals or alloys requiring a protective shell during working are the acid resistant 17 per cent silicon iron, aluminium iron, aluminium iron chromium alloys of over 15 per cent, a series of steel alloys with up to 10 per cent of tin and antimony. The course crystalline steel with 12 per cent manganese and 1À2 per cent carbon is cast round with pearlitic steel. The Figure shows a tapered protective casing 1 into which the friable metal 2 is cast, and, on shrinking, is forced down by hydraulic pressure 3 to fill the mould again. The pipe in the cast metal may be filled up with sand. The protective shell in several parts may be built round the metal and edge welded.
Patent GB-342049-A (GB)
Title: Improvements in covers for jars and other containers
IPC: B65D43/02
Filed: 1929-11-26
Abstract: 342,049. Covers for jars &c. EUWER, R. C., 603, Warwood Avenue, Wheeling, West Virginia, U.S.A. Nov. 26, 1929, No. 36245. Convention date, April 12. [Class 125 (iii).] A cover for jars &c. comprises in combination a cap 1 of stiff material, having a side wall 3, preferably slightly flared, formed with a circumferential abutment 4 and an inturned lower edge 5, and provided with a a flat-sided packing ring 6 of rubber &c. fitting adjacent the side wall and in contact with the abutment. The packing ring, before fitting, preferably takes a form in which the inner diameter of the lower, edge is greater than .the inner diameter of the upper edge. On pressing the cap into position, the rubber &c. flows upwardly to fill the space between the upper edge of the container and the abutment. The device may be used as a vacuum closure.
Patent GB-1240468-A (GB)
Title: Improvements relating to television cameras
Inventor: NEWTON GEORGE CHARLES
IPC: H04N5/225
Filed: 1967-08-08
Abstract: 1,240,468. Television. E.M.I. Ltd. 28 Oct., 1968 [8 Aug., 1967], No. 36313/67. Heading H4F. The response lag at low levels of illumination of a television camera comprising one or more pick-up tubes having photo-conductive targets is reduced by additionally illuminating the target(s) uniformly by biasing light from a source 4 transmitted through an optical fibre 3 whose emergence end is located on or near the axis of the objective 1, which may be a zoom lens. Fibre 3 is positioned such that light from source 4 travels either directly to the target electrode or, as shown, via a beam splitting device 2 which splits the beam from objective 1 into red, green, blue and luminance components for colour reproduction. In an alternative embodiment (Fig. 2, not shown), two optical fibres, both terminating outside the optical path from the subject are employed, the fibre ends being directed such that light from source 4 again illuminates the required area. The or each optical fibre may be terminated by a small reflector.
Patent GB-1193954-A (GB)
Title: Control of Micro-Organisms
Inventor: CLARK NIGEL GEORGE
IPC: A01N35/08
Filed: 1966-08-12
Abstract: 1,193,954. Method for combating microorganisms. BOOTS PURE DRUG CO. Ltd. 2 Aug., 1967 [12 Aug., 1966], No. 36314/66. Addition to 1,507,131. Heading A5E. A method for combating Xanthomonas malvacearum on cotton plants or seeds or for combating Erwinia amylovora on apple or pear trees comprises treatment with 2-bromo-2-nitropropane-1, 3-diol. Specification 1,057,131 is referred to.
Patent GB-157078-A (GB)
Title: Improvements in or relating to a method of manufacturing seatings for disc valves
IPC: F16K15/08
Filed: 1920-12-29
Abstract: 157,078. Breinl, J. C. Jan. 15, 1920, [Convention date]. No Patent granted (Sealing fee not paid). Portable turning-apparatus.-A valve port is shaped in such a way that it conforms to the stream lines of the fluid passing through it. The port s of an annular disc lift valve extending between the valve seat and the annular groove g is turned down by means of a prismatic cutter so that its walls a.re given an S-curvature, and the walls are finished off with a shaped cutter M.
Patent GB-913876-A (GB)
Title: Improvements relating to the fabrication of ruthenium
Inventor: COPE ROBERT GEORGE
IPC: C22C1/04
Filed: 1960-10-04
Abstract: 913,876. Powder metallurgy. INTERNATIONAL NICKEL CO. (MOND) Ltd. Oct. 4, 1961 [Oct. 24, 1960], No. 36435/60. Class 82 (1). Ruthenium powder with a surface area of 2 to 10 m.<SP>2</SP>/gm. is compacted at a pressure of 2 to 10 tons per square inch, sintered preferably in vacuum at a temperature of at least 1350‹ C. to form a compact with a density greater than 90% of theoretical which is then hot and/ or cold worked. The ruthenium powder is produced by igniting ammonium ruthenium chloride in hydrogen at 400‹ C. to 550‹ C. or alternately from ruthenium chloride or ruthenium oxide or complex compounds of ruthenium. In an example ammonium ruthenium chloride is ignited at 525‹ C. under hydrogen, hydrostatically pressed at 5 tons/square inch and sintered in vacuo at 1450‹ C. The sintered compact is hot swaged at 1450‹ C. under hydrogen to a 96% reduction in area. The sintering may also be effected in a neutral or reducing atmosphere.
Patent GB-361643-A (GB)
Title: Improvements in mowing machines
IPC: A01D69/12
Filed: 1930-12-08
Abstract: 361,643. Lubricating mowing- machines. BAMFORD, J., St. Mary's Mount, and BAMFORD, C. J., The Parks, both in Uttoxeter, Staffordshire. Dec. 8, 1930, No. 36891. [Classes 12 (ii) and 12 (iii).] In a mowing- machine having a reciprocating cutter bar actuated by a connecting-rod 1 from a crank-pin 4 on a shaft 2 driven by gears 10, 11 from a shaft 12 geared to one of the supporting wheels of the machine, lubricant contained in the gear case 9 and thrown by the wheel 10 against the cover is collected in the open end 21 of a pipe 20 which conducts it into the end of a longitudinal passage 24 in the shaft 2, whence it reaches the shaft bearings 5, 6 through passages 28, 29 and the surface of the crank pin through passages 25, 26, 27. Alternatively, the oil may be allowed to enter a pocket above the bearing 6, the pocket being inter- .mittently in communication with the passage 24. Specification 355,427 is referred to.
Patent GB-782242-A (GB)
Title: Improvements in the recovery of nickel from lateritic ores
IPC: C22B23/06
Filed: 1955-12-28
Abstract: In the process for extracting nickel from laterite-type ore by reduction to form nickel and then treating with carbon monoxide, the process is effected in two stages, (1) treating the finely-divided ore with a mildly-reducing gas at 400 DEG  to 600 DEG  C., followed by treatment with carbon monoxide at about 50 DEG  C.; (2) treating the residue with a similar reducing gas at 700 DEG  to 870 DEG  C., and finally with carbon monoxide.  A mildly reducing gas contains reducing components (hydrogen or carbon monoxide) in the proportions of 3 : 1 to 1 : 3 relative to nonreducing components (carbon dioxide, steam, or nitrogen).  In an example, a Venezuelan ore containing 1.8 per cent Ni and 20 per cent Fe is ground to pass 100 mesh, and treated with a mixture of 25 per cent CO2, 25 per cent H2, and 50 per cent N2 for 4 hours at 550 DEG  C., and after treatment with carbon monoxide for 18 hours at 50 DEG  C., the residue is treated with the same mixture of gases at 760 DEG  C. for 2 hours.  The final treatment with carbon monoxide is continued for 6 hours.  87 Per cent of the nickel is recovered.
Patent GB-1389158-A (GB)
Title: Thermal treatment of container packed commodities
IPC: A23L3/04
Filed: 1973-08-07
Abstract: 1389158 Sterilisation STORK AMSTERDAM BV 7 Aug 1973 37443/73 Heading A2D A thermal treatment for commodities packed in containers comprises introducing the packed containers into a treatment space provided with a gas inlet and gas outlet by means of an endless conveyor via a pressure-resistant inlet lock and discharging the containers via a pressure-resistant outlet lock, the conveyor traversing the treatment space along a loopshaped path, and the temperature and pressure of the gaseous atmosphere within the treatment space being regulated by a supply of steam and gas, wherein the steam is injected in an upward direction within the treatment space along the path of the conveyor so as to create turbulence in the atmosphere within the treatment space to cause disturbance of the atmosphere adjacent the containers. The steam may be injected at one through one or more nozzles disposed at a plurality of locations within the treatment space. A suitable apparatus for carrying out the above treatment, is shown in Figure 3 wherein packed commodities are transported through the apparatus on conveyor 2 and are subjected to a turbulent steam-gas atmosphere within space 1. This atmosphere is created by upwardly injecting steam from pipes 19, and supply air from inlet 17 into the space 1. The supplies of steam and air are regulated by pressure feeler 13 and temperature feeler 14 respectively.
Patent GB-1433479-A (GB)
Title: Propulsion unit test support device
IPC: F01D25/28
Filed: 1972-08-11
Abstract: 1433479 Engine test stand LUCAS INDUSTRIES Ltd 5 Oct 1973 [11 Aug 1972] 37522/72 Heading G1W A test stand for a gas turbine engine 10 comprises a bore 11 carrying a pair of spaced vertical reaction columns 12, 13, a platform 14 mounted from base 11 by stainless steel straps 15 which permit floating movement of the platform, a pair of uprights 16, 17 mounted on the platform 14 and supporting the engine 10 by means of a frame 20, and load cells 25, 26, each mounted between one of the uprights 16, 17 and a respective one of the reaction columns 12, 13. The load cells are carried by U-shaped brackets 23, 24 mounted on the uprights 16, 17, and are situated in the horizontal plane in which the axis of the engine lies.