baber/WOPTO huggingface dataset:
Patent GB-696661-A (GB)
Title: Improvements in fuel supply systems for gas turbine engines
IPC: F02C7/22
Filed: 1951-05-31
Abstract: 696,661. Gas turbine plant. HOBSON, Ltd., H. M., and TYLER, S. R. April 25, 1952 [May 31, 1951], No. 12887/51. Class 110(iii) [Also in Group XXIX] In a fuel system for aircraft gas-turbine engines in which a spill valve 3 is actuated by a servomechanism 5 governed by a.flow control unit (not shown) for maintaining a required rate of flow of fuel selectable by the pilot but varied in response to changes in ambient atmospheric pressure, and by a maximum speed governor, one side of the servo mechanism being exposed to a high pressure fluid and the other side having a restricted connection 7 with the high pressure side and connections 9, 10 to the flow control unit and a governor operated valve 11, respectively, a pressure regulating valve 22 in the spill line 4 maintains a substantially constant pressure drop across the spill opening thereby keeping the flow control unit equally sensitive atall altitudes. As shown, the servo mechanism is connected on its high pressure side to pump delivery pressure but may, alternatively, be connected to the spill line upstream of the valve 22. The governor valve 11 is operated by a diaphragm 13 subject to the pressure difference across an engine driven impeller 15 and-opens to vent the conduit 10 through a conduit 14, the impeller, a conduit 30 and restriction 18, in the event of excessive speed. The valve 11 may, alternatively, be operated by a mechanical governor. If the piston of the servo mechanism reaches the top of its stroke continued reduction by the flow control unit of the pressure in the conduit 9 causes a valve 27 to open, lowering the pressure on the left-hand side of the diaphragm 23 of the regulating valve 22 and thereby permitting an increased spill flow. The valve 27 also opens to prevent excessive overspeeding should the servo piston be unable to rise sufficiently quickly in response to opening of the valve 11. Instead of the lift valve 22 shown, a sleeve valve may be employed in which case. the diaphragm 23 is not necessarily of the differential nature consequential upon the use of a lift valve. In this case a restriction may be placed in the pump delivery line 2 between the tapping 24 to the diaphragm 23 and the spill valve to obtain desired characteristics of the system. The restriction 18 in the spill line may be replaced by a pressurizing valve, in which case the conduit 30 may be taken to the tip of the impeller instead of connecting with a conduit 16. A restriction 25 and duct 29 containing the valve 27 can be omitted and replaced by a restriction either in'the delivery line 2 upstream of the spill valve or in the duct feeding the lower side of the servo piston. In the latter case a conduit containing a pressurizing valve and leading to the inlet side. of the pump is also connected to the lower side' of the servo piston resulting in substantially constant pressure being applied to that face of the valve 11 which is exposed to pressure in the conduit 10 as in Specification 696,452.
Patent GB-394795-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1932-05-05
Abstract: 394,795. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Knight, D. B. ; 209, Lincoln Place, Brooklyn, New York, U.S.A.) May 5, 1932, No. 12912. Convention date, May 5, 1931. [Class 29.] Absorption machines and systems.-The vapour evolved from the generator of a continuously-acting machine is rectified by heatexchange firstly with strong liquor passing from the absorber to the generator and then with condensate. In a machine of the inert gas type, the vapour bubbles through the strong liquor in the vessel 28 connected to the heat exchanger 15 and flows through the pipe 21, the upper end of which is cooled by condensate in an enclosing vessel 29, to the condenser 11. The strong liquor is pumped through a riser pipe 17 into the upper part of the generator, and the refrigerant and absorbent liquid, e.g. ammonia and water respectively, are selected so that the strong liquor rises to the surface of the liquid in the vessel 28.
Patent GB-1533465-A (GB)
Title: Method of drying a hearth connection in a dc arc furnace
IPC: F27B3/08
Filed: 1976-03-31
Abstract: 1533465 Arc furnace ASEA AB 31 March 1976 [1 April 1975] 12915/76 Heading H5H In order to dry the lining compound 1 filling the space between the externally cooled casing and the electrically conducting electrode 2 of the hearth connection of a D.C. arc furnace, the electrode 2 is provided with a through channel 5 along which heated gas is caused to flow from one end to the other. The electrode may have several parallel channels 5 or may have a common portion and several branches provided with communicating channels. An oil or gas burner 3 within the furnace is the source of heated gas and an ejector provided at 6 increases the gas throughout. The electrode 2 may be tapered from the outside to the inside of the furnace. In use melt from the furnace fills the channel(s) in the electrode and solidifies at the outer end thereof so that the construction is identical with that described in Specification 1,501,207. Several hearth connections may be provided in each furnace.
Patent GB-1194942-A (GB)
Title: Weft Stop Motion for Weaving Looms
Inventor: RIHA MILOSLAV
IPC: D03D51/36
Filed: 1968-03-18
Abstract: 1,194,942. Weft stop motions; shuttleless loom. ELITEX - ZAVODY TEXTILNIHO STROJIRENSTVI, GENERALNI REDITELSTVI. 18 March, 1968 [16 March, 1967], No. 12951/68. Heading D1E. As the sley retracts after beat-up the weft 20 tilts a feeler 7 to open contacts to allow the loom to carry on working. Absence of weft retains the contacts closed and the loom is stopped. During retraction the sley pulls the feeler out off the fabric.
Patent GB-129154-A (GB)
Title: Improvements in or relating to Resilient Wheels for Vehicles.
Inventor: WADE HAROLD
IPC: B60C7/12
Filed: 1918-08-09
Abstract: 129,154. Wade, H., (Morand Bros.-Martin Cushion Wheel Co.). Aug. 9, 1918. Spring wheels with continuous outer rigid ring and rubber-ring and like cushions. - In motorvehicle wheels with resilient cushion elements, the inner and outer channel-shaped rings 6, 12 are separated by a rectangular-sectioned rubber cushion 8 having two annular series of bushings 18, and bolts 16 pass through the bushings and through the rim flanges 7, 13, of which one at least is detachable. The cushion may be formed of an intermediate ring having perforations 9 and rubber side rings 15, and the perforations may be arranged in groups.
Patent GB-958766-A (GB)
Title: Improvements in or relating to cameras having built-in exposure meters
IPC: G03B17/08
Filed: 1963-04-02
Abstract: 958,766. Camera viewfinders; prisms. ZEISS IKON A.G. April 2,1963 [April 17, 1962], No. 13022/63. Heading G2A. A camera has a built-in photo-electric exposure meter whose photo-sensitive surface 5 extends parallel to but outside the path of light rays entering the camera viewfinder, a partially reflecting mirror surface 2 being placed in the light path to direct light on to surface 5. The mirror surface 2 may lie at the contacting surfaces of a pair of prisms 1a, 1b comprising an eyepiece 1, the outer surface 3 of prism 1b being curved to form a lens, and the rear surface 4 of prism 4 being plane. A pentagonal prism may be mounted in front of the eye-piece to connect it to a telescopic view-finder.
Patent GB-180196-A (GB)
Title: Improvements in driving belts for pulleys
IPC: F16G5/18
Filed: 1921-05-07
Abstract: 180,196. Edwards, T. F. May 7, 1921. Belts.-A belt for V-shaped pulleys comprises a series of channel-shaped sections a of leather or like material hinged together by metal links d, the leaves of the hinges being directly connected to the bottoms of the sections by rivets e or screwed bolts. The channel may be completely or partially filled with rubber, leather, or like material, as shown at 2, Fig. 7.
Patent GB-495262-A (GB)
Title: Improvements relating to the preparation of purified noble metals
IPC: C22B11/00
Filed: 1937-05-07
Abstract: Noble metals are obtained in a form suitable for use as catalysts, or for preparing chemically pure salts, by precipitating impure reducible salts in presence of an inert carrier, the precipitate so obtained being separated, dried, and ignited so that the noble metal is obtained in metallic form and the impurities are oxidized and removed by a suitable solvent. For example, impure silver nitrate solution may be precipitated with a suspension of two equivalents of calcium carbonate or other carbonate or one of calcium carbonate and one of sodium carbonate. By drying the precipitate and heating it in air to about 400 DEG  C. the silver carbonate is reduced to metal, and the impurities remain as carbonates or oxides.  These along with the excess carbonates are dissolved by one or more solvents such as acetic acid.  Specification 477,522, [Group II], is referred to.ALSO:Noble metals are obtained by precipitating impure reducible salts in presence of an inert carrier, the precipitate so obtained being separated, dried, and ignited so that the noble metal is obtained in metallic form and the impurities are oxidized and removed by a suitable solvent.  For example, impure silver nitrate solution may be precipitated with a suspension of two equivalents of calcium carbonate or other carbonate, or one of calcium carbonate and one of sodium carbonate.  By drying the precipitate and heating it in air to about 400 DEG  C., the silver carbonate is reduced to metal, and the impurities remain as carbonates or oxides.  These along with the excess carbonates are dissolved by one or more solvents such as acetic acid.  The metal obtained is suitable for use as a catalyst, or for preparing chemically pure salts.  Specification 477,522 is referred to.
Patent GB-885807-A (GB)
Title: Improvements in carbide and like tipped tools and tips therefor
Inventor: ELLIOTT BERNARD
IPC: E21C35/18
Filed: 1960-04-13
Abstract: 885,807. Percussive tools. HIGHER SPEED METALS Ltd. Oct. 19, 1960 [April 13, 1960], No. 13130/60. Class 124 [Also in Group XXI] The hard metal tip 11 of a mineral-mining pick or a rock drill is so shaped that when secured in the body 1A of the pick or drill maximum prorection against wear of the material of the body is provided. The tip has a base formed with parallel side faces 12 and with edge faces 13 substantially at right angles to one another so that each side face at the lower extremity is V-shaped. At the junction between the base and head portions of the tip the head portion is of considerably greater section than the base so that a shoulder is formed that projects laterally beyond each side face. These shoulders when the tip is inserted in an end milled recess in the end of the body of the pick or drill abut and project beyond the end surfaces of the pick or drill.
Patent GB-472387-A (GB)
Title: Improvements in or relating to tops
IPC: A63H1/16
Filed: 1937-05-07
Abstract: 472,387. Tops. RICHTER, J. May 7, 1937, No. 13151. [Class 132 (iii)] A hopping and dancing top 1 has a helical spring 3 projecting downwardly therefrom and terminating in a cap 4, the lower surface of which is spherical with centre 6 coinciding with the centre of gravity of the entire top, so that the point of the cap in contact with the floor is always vertically below the centre of gravity of the top, thus preventing wandering and wobbling of the top.
Patent GB-886780-A (GB)
Title: Improvements in arrangements for ejecting used sand moulds out of moulding boxes
IPC: B22D29/02
Filed: 1960-04-13
Abstract: 886,780. Moulding-machines. BADISCHE MASCHINENFABRIK A.G. April 13, 1960 [Jan. 19, 1960], No. 13155/60. Class 83 (1). Used foundry moulds in flasks 2 are transferred laterally by grippers 3 from the rails 1 to a position above a dumping box 8 where the flask contents are forced out by a plunger 4, the empty flasks being then returned to the rails. The forcing-out plunger 4 has elastic rubber lips 9.
Patent GB-262378-A (GB)
Title: Method of determining the behaviour of the individual particles of a body when subjected to stress
IPC: G01N3/06
Filed: 1926-05-25
Abstract: 262,378. Hõrter, L. Dec. 4, 1925, [Con. vention date]. Drawings to Specification. Testing physical qualities of materials. - A method of determining the behaviour of the individual particles of a body under stress consists in dotting the surface of a section of the body parallel to the direction of the stress as by spraying with colouring material, subjecting the body to stress which increases continuously or in stages, and exposing a photographic plate to obtain a record of the paths of the dots within the duration of the application of the stress. The dots may be sprayed uniformly over the section, or along intersecting lines, or in parallel strips with the aid of a stencil.
Patent GB-902676-A (GB)
Title: Combined fly ash and bottom ash handling system
Inventor: MCLENNAN JAMES ALAN
IPC: F23J3/06
Filed: 1960-04-13
Abstract: 902,676. Fluid-pressure servomotor-control systems. ALLEN SHERMAN HOFF CO. April 13, 1960, No. 13209/60. Class 135. [Also in Group XII] The delivery of ash to a sump 5 from a furnace ash pit is controlled in accordance with the water level in the sump by a differential pressure sensing device 75, a pilot valve 100 and a diaphragm device 33, Fig. 2, controlling a valve 32 in the supply line for high-pressure water to entrain the ash for delivery to the sump 5 through pipe 6. The normal level of the water in the sump 5 is maintained above the level of a pipe 87 connected to one side of the differential pressure device 75 by a water supply pipe 57 with a level controlled valve. The other side of the differential pressure device 75 is connected to a pipe 89 opening above' the water level in sump 5. When the water level in sump 5 falls due to the removal of ash and water by a pump 48, the reduction of the hydrostatic pressure in line 87 causes an increase in the pressure above the diaphragm of pilot valve 100, to. open the valve and allow fluid to flow from a supply pipe 101 through pipe 105 to device 33 to open valve 32. A rise in the water level in sump 5 causes an increase in the pressure difference between lines 87 and 89, and a decrease in the pressure within chamber 84 of the differential pressure device 75, so that liquid flows from valve 100 through pipes 102, 103 and 104 to the space below the diaphragm of valve 100 to close it and cut-off the supply of fluid to line 105, thus closing the water supply valve 32. The differential pressure arrangement enables the water.. and bottom ash supply to be controlled independently of variations in the pressure in upper part of the sump 5 caused by the operation of the cyclone separator 60 for the fly ash delivered from a pipe 11.
Patent GB-1468222-A (GB)
Title: Method for solubility of dipeptide sweeteners
IPC: A23L27/30
Filed: 1974-03-25
Abstract: 1468222 Artificial sweeteners GENERAL FOODS CORP 25 March 1974 [2 April 1973 (2)] 13213/74 Heading A2B A method of making a dipeptide sweetening composition of improved solubility in water comprises blending together a dipeptide and a solid edible acid. The composition may be made by (a) grinding the dipeptide, (b) grinding the solid edible acid, and (c) mixing the dipeptide and acid, step (c) being carried out either before or after grinding. In addition a volatile inert organic liquid e.g. chloroform, ether or ethanol, may be added to the ground mixture, and evaporated, resulting in a composition in which the dipeptide is coated with the acid. The preferred dipeptide is L-aspartyl- L-phenylalanine methyl ester, and the acid may be citric, malic or adipic. The ratio of acid to dipeptide is from 2:1 to 6:1 and the particle size may be 160 to 50 U.S. mesh. The composition may be used in beverage compositions, gelatin desserts, baking formulations, candies, salad dressings and dog foods.
Patent GB-164221-A (GB)
Title: Improvements in galvanic batteries
IPC: H01M6/22
Filed: 1920-05-13
Abstract: 164,221. Fuller's United Electric Works, Ltd., and Fuller, L. May 13, 1920. Electrolytes.-The electrolyte of a dry cell consists of a mixture of two or more substances in granular form, the grains being approximately all of the same size. This is stated to prevent the ingredients from becoming unevenly distributed if the cell is shaken, and also to prevent caking of the mixture when liquid is added to excite the cell. Percolation of the liquid is also facilitated. The electrolyte may comprise the mixtures described in Specifications 102,294 and 152,818.
Patent GB-933926-A (GB)
Title: Improvements in or relating to apparatus for cleaning vehicle windscreens
Inventor: GRAHAM ROBERT
IPC: B60S1/52
Filed: 1960-04-13
Abstract: 933,926. Windscreen cleaners. MICROCELL Ltd. April 7, 1961 [April 13, 1960], No. 13263/60. Class 138 (1). Apparatus for cleaning a vehicle (particularly an aircraft) windscreen 12 includes at least one brush and preferably two cylindrical brushes 28, contained by a trough 13 having its mouth against the windscreen and carried and movable, e.g. rotatable within a support adapted to be moved to and fro over the windscreen and which preferably comprises a trough 13 formed integrally with a tube 14 spigoted on a boss 21 adjustably attached by screws 39 to a rotatable driving stub axle 22 and a perforated pipe 41 for supplying cleaning fluid to the brushes or the windscreen surface. The brush shafts 27 are contra-rotated by a drive means comprising intermeshing gears 29, 31, a shaft 32, bevel gears 35, 38 and a drive shaft 36 journalled in the stub axle 22. The periphery of the trough and the wall 23 carry respectively a rubber blade 18 and a serrated rubber strip 25 in contact with the windscreen. The bristles of at least one of the brushes are, preferably, arranged helically and may be of natural or synthetic material. The cleaning liquid may be a deicing liquid. The brushes 28 may be non- cylindrical and may reciprocate parallel to the windscreen instead of rotating. In further constructions the cleaner may move about other axes of revolution or, alternatively, may reciprocate linearly instead of rotating.
Patent GB-132696-A (GB)
IPC: B01D29/00
Abstract: 132,696. Burris, M. G. Jan. 2, 1919. Bag filters.-Gasolene entering a casing A by a pipe 14 filters through chamois-leather supported on a corrugated per. forated sleeve C and enters through perforations 19 a collecting- member B connected to a discharge pipe 18. A sediment-container 11 is provided with a drainage cock 12 and return-float pipe 15.
Patent GB-133612-A (GB)
IPC: E01B9/10
Abstract: 133,612. Bellan, E., and Laine, H. L. March 31, 1919. Sleepers, wood.-Rails are secured to wood'en sleepers by clamps C, Fig. 15, having two hooks n entering the sleeper and a shoulder p engaging the rail, each clamp being secured by an anchor bolt A having a locked nut B and a pair of lateral arms b terminating in claws g which penetrate the sleeper across the grain. The arms b may be integral with the bolt or fixed to it, or may be formed on a nut, in which case the head of the bolt bears on the clamp C. To secure the arms b, the bolt A is slotted at d, Fig. 6, whilst the arms are recessed at h and shouldered at i, a hole j being provided for the insertion of a tool to disengage the arms b. To secure rail chairs, the anchor bolts are used without the clamps C. The bolt head is marked at f to indicate the direction of the arms.
Patent GB-1043714-A (GB)
Title: Improvements relating to a method for treating minerals containing a naturally magnetic or magnetizable substance and the products obtained thereby
IPC: C01F7/066
Filed: 1963-04-04
Abstract: A method of treating minerals containing at least one naturally magnetic or magnetizable substance comprises treating said minerals with a NaOH solution having a NaOH concentration higher than 35% by wt. and a temperature not less than 110 DEG  C., seeding the solution with ferrous ions or divalent metal ions of an ionic radius similar to that of the ferrous ion, and separating the naturally magnetic or magnetizable metallic oxides, or causing them to settle, by applying a magnetic field.  The term "minerals" includes not only ores mined directly out of the ground and materials that are partly or completely the residue of physical and chemical treatment of such ores, but also coke. The process is especially applicable to the treatment of bauxites or Al ores containing Fe and/or Mn. Mg++, Zn++, Mn++, Cu++, Ni++ and Co++ are exemplified as divalent metal ions having an ionic radius similar to the Fe++ ion.  The magnetic field can be continuous or periodic, and may be provided by electro- or permanent magnets or by rotating fields in the sodium hydroxide solution.  Surface active agents may be added to the liquids used in the method.  KOH solution may be added to the NaOH solution used in the first step of the process.  In the treatment of the "red muds" obtained in the Bayer process, after magnetic separation of the oxides, the oxides may be washed, the washings being returned to the residual sodium hydroxide solution, which may be processed conventionally to yield a solution containing NaOH and NaAlO2, which may be recycled for attacking the bauxite.
Patent GB-153854-A (GB)
Title: An improved air pump for use in inflating pneumatic tyres and for other purposes
IPC: F04B33/00
Filed: 1920-05-15
Abstract: 153,854. Davies, T. M. May 15, 1920. Actuating pumps by hand power; oscillating- cylinder pumps.-A pump for use in inflating pneumatic tyres &c. and of the kind described in Specification 143,747, comprises a pump barrel c, Fig. 1, pivotally mounted at its lower end to a supporting-standard a having feet a<2> and a base b which extends on the opposite side of the standard to that of the operating hand-lever d, d<1> which is pivoted at one end to the standard and at an intermediate point to the pump-rod c<3>. The base is provided with feet b<4> upon which the whole apparatus is adapted to be rocked, and the standard with a revolubly mounted handle a<1> which may be fixed upon the top or the side of the standard. The upper portion d of the handlever is adapted to be in line with the pump-rod at the end of the pressure stroke of the rod, and the other portion d' is bent outwards from the point at which the lever is pivoted to the pumprod, and is approximately parallel with the upper portion d of the lever. The base and the standard are connected by stays b<3> secured to the base by thumb-screws so as to allow the base to be folded up when the pump is out of use. A curved cross-stay b' between the stays b<3> supports the flexible air-delivery tube f. In a modification, the base is formed with an adjustable extension member, and in another arrangement, the outer end of the base b, Fig. 9, is pivoted to a block i, pivotally mounted upon a base-board h. The base-board is provided with clips for holding the feet a<2> of the standard.
Patent GB-1347181-A (GB)
Title: Manufacturing wear-resistant metal products by casting
IPC: B22D17/00
Filed: 1972-03-22
Abstract: 1347181 Casting composite articles HONDA GIKEN KOGYO KK 22 March 1972 [27 March 1971] 13511/72 Heading B3F [Also in Division F2] In a casting process in which molten metal is forced through a runner into a mould by the action of a piston, a thermoplastic resin is supplied to the runner so that it becomes dispersed in the cast metal. The resin, e.g. polypropylene, polyethylene or polystyrene, may be mixed with a wear-resistant or lubricating material in powder form, e.g. graphite, molybdenum disulphide, lead, tin, copper, silicon, phenol resin, epoxy resin or polytetrafluoroethylene. Examples describe the casting of aluminium products for use as bearings.