baber/WOPTO huggingface dataset:
Patent GB-2459832-A (GB)
Title: Beamforming in a radiated power controlled multi-antenna transmission
Inventor: VITHANAGE CHERAN MALSRI
IPC: H01Q3/26
Filed: 2008-03-14
Abstract: Beamforming is described for a two antenna transmitter. The approach involves determining a beamforming relationship between the two antennas, which antennas are separated by a distance which is less tan half a wavelength of operating wireless signals, the beamforming relationship being determined on the basis of an equivalent isotropic radiated power restriction (EIPR) and wherein the beamformer is operable to determine said beamforming relationship on the basis of signal to noise ratio at a receiver with which said apparatus seeks to communicate. Another approach to the invention comprises beamforming on the basis of a first test to determine if antenna selection is acceptable in comparison with antenna mixing. If antenna mixing is the better approach, then the mixing is determined on the basis of an optimisation with respect to signal to noise ratio at the receiver. In one embodiment, a codebook approach is used, such that only a selection of possible mixings are tested and the best is selected. The invention is particularly suited to ultra wideband (UWB).
Patent GB-2445528-A (GB)
Title: Door hinge assembly
Inventor: SHIPLEY STEPHEN P
IPC: E05D7/08
Filed: 2006-08-14
Abstract: A door hinge assembly comprising a frame-support portion arranged to be fitted, in use, to a door frame, and a door-support portion arranged, in use, to be fitted to a door, the door support portion comprising a cylindrical portion, an arm portion and a door attachment means arranged to attach to the door, the arm portion being arranged to support the attachment means at a distance from the cylindrical portion, the hinge assembly having an open position and a closed position and being further arranged such that a gap between the frame-support portion and the cylindrical portion remains substantially the same when the hinge assembly is in either the open or the closed positions and also substantially at any position in between the open and closed positions.
Patent GB-2451728-A (GB)
Title: Brick cutters
Inventor: PUGH ANTHONY
IPC: B28D1/22
Filed: 2008-07-07
Abstract: A first brick cutter comprises two opposing jaws 456 and 460 supported by a frame 402. A first jaw 456 is mounted on one arm of a lever 432 which is pivotally attached to the frame 402. A threaded member 440 is screwed through the other arm of the lever and engages the frame 402. Rotation of the threaded member 440 pivots the lever 432 whereby the first jaw 456 is urged towards the second 460. A second brick cutter (Fig.17) comprises a hydraulic ram which has a manually actuated piston (322, Fig. 17) and a cutting jaw supporting piston (428, Fig. 17). Movement of the actuated piston (322, Fig.17), which has a smaller cross-sectional area than the supporting piston (428, Fig.17), applies force to the supporting piston (428, Fig.17). A third brick cutter (Fig. 1) comprises opposing jaws (12 and 14, Fig. 1), two upstanding threaded members (16 and 18, Fig. 1) and respective nuts (20, Fig. 1). One of the jaws (14, Fig. 1) is mounted on a support having two open bores (34 and 36, Fig. 1) through which a respective threaded member (16 and 18, Fig. 1) projects. A brick (8, Fig. 1) is located between the jaws (12 and 14, Fig. 1) and force is applied thereto by rotating the nuts (20, Fig. 1) on their respective threaded members (16 and 18, Fig. 1). In a fourth brick cutter (Fig. 7) a threaded member is connected to one of the jaws (104, Fig. 7).
Patent GB-2462070-A (GB)
Title: Contactless connector for use in a gas turbine
Inventor: BODIN ROBERT MICHAEL GEORGE
IPC: H01F3/10
Filed: 2008-07-18
Abstract: A system for monitoring an operational parameter of a gas turbine, including a magnetic coupling between a signal source and a data output terminal. The magnetic coupling comprises a primary coil 57 electrically connected to the signal source 54, and a secondary coil 59 electrically connected to the output terminal but electrically isolated from the primary coil. The primary and secondary coils may be wound around separate magnetic cores 58,60 which are physically separated from one another, perhaps by an air gap. Alternatively, the coils may be wound around the same core with the secondary coil arranged to be detachable from the core.
Patent GB-2451567-A (GB)
Title: Separation of phycobilin-based pigments using an adsorbent, the surface of which comprises a calcium phosphate-based compound, and phosphate elution buffers
Inventor: KOBAYASHI SHINTARO
IPC: C09B11/02
Filed: 2008-07-28
Abstract: A method of separating at least one phycobilin-based pigment from a sample containing a plurality of phycobilin-based pigments (e.g. from red algae, blue-green algae or cryptophytes algae) comprises: <UL ST="  Ò  "> <LI>  preparing an adsorption apparatus (1) having a filling space (20) for filling an adsorbent (3), wherein at least the surface of the adsorbent comprises a calcium phosphate-based compound (e.g. hydroxyapatite) and at least a part of the filling space is filled with the adsorbent; <LI>preparing a sample solution by mixing the sample and a phosphate buffer; <LI>supplying the sample solution into the filling space so that the plurality of phycobilin-based pigments are adsorbed by the adsorbent; <LI>supplying phosphate elution buffers having different salt concentrations, to elute at least one of the plurality of phycobilin-based pigments from the adsorbent into the filling space, continuously or in a stepwise manner; <LI>and fractionating the eluate which is discharged from the filling space into different portions corresponding to the respective phosphate elution buffers to thereby separate the at least one phycobilin-based pigment from the other phycobilin-based pigments. The method is capable of separating a specific phycobilin-based pigment with high purity by a simple operation, including the following pigments with a phosphate elution buffer having the specified salt concentrations: <UL ST="  Ò  "> <LI>  R-phycoerythrin (1 mM to 25 mM), <LI>phycocyanine (25 mM to 75 mM), <LI>allophycocyanine (75 mM to 250 mM), and <LI>Y-phycoerythrin (greater than 250 mM). The separated pigment may be crystallised by adding ammonium sulphate to the eluate and may be used as a marker.
Patent GB-2462321-A (GB)
Title: Flat-pack coffin with L-shaped bracket for securing side panels to base panel
Inventor: MORPHET ROBERT JOHN
IPC: A61G17/00
Filed: 2008-08-05
Abstract: A flat-pack coffin [1, Fig. 1] comprises a lid [3, Fig. 1], and at least one side panel 2, secured to a base panel 4 using an L-shaped support bracket 18 in combination with a plurality of dowels 14 provided around the periphery of the base panel 4. The dowels project outwards from the base panel 4 in a direction substantially parallel to the plane of the base panel 4 and are received in a series of bores 15 formed in the side panels 2. The L-shaped support strip 18 has one flange 19 which is secured to the lower edge of the outer side of the side panel 2 while its other flange 20 extends around the edge of the side panel 2 to project outwards from panel 2 and under base panel 4. Pilot holes [21, Fig. 4] are formed respectively in flange 20 of the support strip 18 and in the base panel 4 to enable a screw fastener 17 to be used to secure the support strip 18 to the base 4. Preferably, the coffin (1) is made substantially of inexpensive, recycled and/ or biodegradable material such as paper-pulp based materials such as cardboard and fibreboard. Panels of the coffin may be of honeycomb construction with a wood veneer. The coffin can be stored in flat-pack form and can be assembled quickly using a screwdriver.
Patent GB-2462434-A (GB)
Title: Trackball pointing device with capacitive proximity sensor
Inventor: SUTTON TONY
IPC: G06F3/0354
Filed: 2008-08-05
Abstract: A pointing device 30 such as a scrolling device or trackball, including a ball 32 formed of conductive material, a capacitive proximity sensor 40 that measures a value of capacitance representative of the proximity of a sensing object to the ball 32, an electrical switch that is activated only when the sensing object 42 is in contact or in close proximity to the ball 32, and a controller that communicates the movement data to the interface only when the switch is activated. When the switch is in the deactivated position, the controller does not communicate with the interface. The ball 32 may either be formed entirely of a conductive material, comprise an outer layer of a conductive material or comprise a core 34 formed of a conductive material and an outer layer 36 formed of a non-conductive material. When the sensing object 42, such as a user's finger, is no longer in contact with or in close proximity to the ball 32, the switch may remain in an activated position for a preset time period. Similarly, the switch may remain in an activated position until the speed of the ball 32 falls below a preset threshold. The conductive material may have a resistivity no greater than 1Omegam at 20°C and the material may be steel, copper or gold. The device 30 may be used as a power saving feature. Trackballs are vulnerable to environmental events such as shock and vibration and this device is used to prevent the resulting unintended ball movements that can occur.
Patent GB-2452379-A (GB)
Title: Scroll compressor back pressure chamber defined between seals on spaced planes
Inventor: ZAMUDIO CARLOS A
IPC: F04C18/02
Filed: 2008-08-13
Abstract: A scroll compressor has a back pressure chamber 56 defined by two seals 58, 64 on different planes. Locating the seals on two distinct planes allows a more direct connection for a tap 66 from a compression chamber to the back pressure chamber and the volume of the back pressure chamber can be made significantly larger, reducing resistance at startup of the scroll compressor. The radially inner seal 58 may be formed between a radially extending flange 54 on the foot of an orbiting scroll drive boss 52 and a crank case lower surface 60. The radially outer seal 64 may be at a portion of the crank case adjacent the orbiting scroll base 51. The seals may be held in either or both of the orbiting scroll components or the crank case.
Patent GB-2451027-A (GB)
Title: Ice protection power supply
Inventor: STOTHERS IAN MCGREGOR
IPC: B64D15/12
Filed: 2007-03-19
Abstract: There is disclosed an electrical system for an aircraft comprising: at least one generator (302); a power control system (304) for distributing power from the generator to electrical subsystems (306, 308) in the aircraft; and an ice protection control system (310) for controlling at least one ice protection device (312, 314, 316), wherein the ice protection control system is connected to said at least one generator.
Patent GB-2455654-A (GB)
Title: Antenna system combining independent electric and magnetic fields
Inventor: RHODES MARK
IPC: H01Q1/04
Filed: 2008-12-19
Abstract: An antenna system comprises independent electric (E) field and magnetic (H) field transducers arranged to provide fields which are orthogonal to one another. The antenna system includes means to control the amplitude and phase of each field such that they may generate or receive an electromagnetic signal. The E-field transducer may be formed by a pair of parallel conductive plates 302, 303 while the H-field transducer may be formed by at least one magnetic dipole 300, 301. The H-field transducer 300, 301 may be located between the plates 302, 303 of the E-field transducer. Alternatively, an electric transducer with two or more parallel plates, where the spacing between the plates may be equal or variable, may be located within the H-field transducer. The conductivity of the ambient medium of the antenna system may be measured to provide a basis for adjusting the magnitude and/or phase relationship between the E and H-fields. The antenna system may be used in low frequency, underwater, communication arrangements.
Patent GB-2467948-A (GB)
Title: Thermal shrinking chuck with inner gripping member thermally decoupled from chuck body
Inventor: DUPONT RALF
IPC: B23B31/02
Filed: 2009-02-20
Abstract: A chuck 40 for gripping a tool comprises a body 42 made of thermally sensitive material that is excited by a thermal excitation element 50 to change the perimeter of a bore 44 in the body 42, and a gripping member 52 that is disposed inside the bore 44, the thermal expansion of the gripping member 52 being decoupled from the thermal expansion of the body 42. The gripping member 52 may be integral with the body 42 or may be formed from a separate part to the body 42. The separate part may comprise a layer inside the bore 44. A plurality of contact points 54 may be formed by the gripping member 52. The gripping member 53 may be formed from ceramic material. A coil 50 for conveying AC current may circumscribe the outer surface of the body 42 in order to thermally excite it.
Patent GB-2468163-A (GB)
Title: An automatically applied brake unit for a pushchair or trolley
Inventor: NAZHAM MURTAZA HASHAN ALEXANDER
IPC: B62B5/04
Filed: 2009-02-27
Abstract: A safety brake unit 1 for a baby buggy, pushchair, trolley or the like is engaged at all times and must be disengaged before the pushchair, pram, trolley etc. can be moved. The brake mechanism may comprise a central shaft 2, surrounded by a coil spring 4, or the spring may be replaced by a pneumatic mechanism. At the base of the shaft are wedge shaped brake lock inserts 6, which slide into the wheel brake grooves (22, figure 9) to lock the wheels against movement. A brake lever (20, figure 5) may be mounted on the buggy handle and connected to the brake mechanism by cable 16. When the brake lever 20 is released the coil spring pushes the central shaft down and the brake lock inserts into the wheel brake grooves which prevents the wheels from rotating and the pushchair/pram from moving. The brake is disengaged by simply pushing the brake lever forward and holding it against the pushchair, pram or trolley handle.
Patent GB-2455429-A (GB)
Title: Extensible cleaner hose with solution tube
Inventor: PARR RICHARD S
IPC: A47L7/00
Filed: 2005-11-28
Abstract: A cleaning apparatus (60) for cleaning a surface in which cleaning solution is dispensed to the surface and substantially simultaneously extracted along with the dirt on the surface (74) in a continuous operation is provided. The cleaning apparatus (60) includes a base portion (64) for movement along the surface and a handle (62) pivotally connected to the base portion (64). A solution tank (76) for supplying a flow of cleaning solution to the surface (74) is removably mounted to the handle (62). A recovery tank (80) is removably mounted to the handle (62). A suction nozzle (174) is secured to the base portion (64) and in fluid communication with the recovery tank (80). A suction source is in fluid communication with the suction nozzle (174) for generating suction to draw dirt and liquid through the suction nozzle (174) and into the recovery tank (80). An accessory assembly 632 including a hose portion 800 and a solution tube 496 are provided. The maximum length of the hose assembly 800 is at least 25% greater than the minimum length of the accessory assembly 632. The solution tube 496 is coiled within the hose.
Patent GB-2455939-A (GB)
Title: A multi-channel assignment method for multi-radio multi-hop wireless mesh networks
Inventor: JETCHEVA JORGETA
IPC: H04W72/08
Filed: 2007-09-19
Abstract: Techniques are described for automatically determining quasi-static per-link channel assignments for each radio in multiple-hop mesh networks having nodes with two or more radios and where only a small number of channels is available for use in the network. The method optimally assigns the channels to the radios of all of the nodes in the network so as to achieve the lowest interference among links and the highest possible bandwidth.
Patent GB-271997-A (GB)
Title: Improvements relating to the driving of cam or other auxiliary shafts in internal combustion engines
IPC: F01L1/02
Filed: 1926-04-16
Abstract: 271,997. Morris Engines (Coventry), Ltd., Pendrell, A. G., and Woollard, F. G. April 16, 1926, Valve gcar.--In an engine in which a chain a drives a sprocket c on a pump, magneto, or dynamo shaft from a sprocket b on the crank shaft, and in which the cam shaft i, or other shaft which may require to be dismounted, is driven from another sprocket e through spur gearing f, h, the wheels e, f are carried by a frame g which is located by dowels k and secured to the cylinder head j by bolts l. In a modification, Fig. 4, the wheels e, f are carried on a boss m secured to the cylinder head by a screwed pin r. In another form, the wheels e, f are mounted on a hollow pin formed with a flanged end, which is secured by set-screws to the cylinder head.
Patent GB-394779-A (GB)
Title: Improvements in and relating to machines or appliances for trimming welded tubes
IPC: B23D79/02
Filed: 1932-04-08
Abstract: 394,779. Trimming welded tubes. REYNOLDS, A. M., Hay Hall Works, Tyseley, Birmingham. April 8, 1932, No. 10093. [Classes 83 (iii) and 83 (iv).] Planing; tools.-Apparatus for trimming welded tubes comprises a rotatable tool-holder h carrying a number of similar trimming tools i and rotated intermittently by ratchet mechanism to bring a fresh tool into cutting relation with the tube j when required. Brackets bare provided for attachment to the welding-machine. The bearing members f for the tool-holder spindle g and the bearing d of a roller 3 which supports the tube against the cut are adjustable by screws in vertical guides c. The outer cutting edge of each tool is concave and conforms to the surface of the tube, and the tool shanks may be of round or square section. The toolholder spindle carries a ratchet k engaged by a fixed locking-pawl l, Fig. 5, and by a pawl m carried by a casing o which may be oscillated to an extent determined by stops s, t by means of a treadle connected by lever mechanism v .. x to the casing. This movement, effected by the operator when a tool becomes worn, serves to bring a fresh tool into operation. An additional pair of adjustable rollers are provided at 5 and behind these is arranged a supplementary trimming tool 9 which is normally held out of action by a spring but is moved to operative position by a hand lever 12 so as to trim that portion of the tube which is left untrimmed during the changing of the main tools. The tools are re-sharpened by transferring the holder h to a grinding machine, Fig. 9, where the tools are brought in succession, by movement of a hand-lever 17, into engagement with the periphery of a profiled grinding wheel 16 which is trimmed by a diamond 18 moving in the required arcuate path about a pivot 19. Intermittent rotation of the holder h is effected by hand. For sharpening the faces of the cutting tools, the tool holder is placed on an adjustable table 20 and the tools brought successively by a lever 24 against the face of a grinding-wheel 21, which may be trued by a diamond 25. The holder is secured by a catch operated by a lever 23 and engageable with one of the tools or with one of a series of holes in the holder.
Patent GB-200564-A (GB)
Title: An improved concrete block waterproof dressing
IPC: C04B26/02
Filed: 1922-04-10
Abstract: 200,564. Hartgrove, F. April 10, 1922. Water paints.-A waterproof. dressing for concrete consists of white copperas, glue, and water, in the preferred proportions of 1 lb. each of white copperas and glue to 1 gallon of water.
Patent GB-817003-A (GB)
Title: Improvements in lubricants
Filed: 1955-04-07
Abstract: A lubricating composition, suitable for application to the bobbin guides and bobbin carriages of textile machines manufacturing lace or netting consists of 70-95 per cent by weight of graphite and 30-5 per cent by weight of an anionic surface-active agent.  The surface-active agent may be a salt of a sulphated fatty alcohol, for example the sodium salt of sulphated lauryl alcohol or mixed salts obtained by hydrolysing sperm oil, or hydrogenating coconut oil, palm kernel oil or palm oil, to produce the alcohols, sulphating the alcohols and converting the sulphated alcohols to their sodium salts. The lubricating composition may be employed in dry powdered form and may contain in addition a substance such as oleyl alcohol, which inhibits the formation of dust clouds.
Patent GB-549656-A (GB)
Title: Improvements in or relating to fluid operated friction clutches and desludging devices therefor
IPC: F16D25/062
Filed: 1941-08-12
Abstract: 549,656. Centrifugal separators. UNITED AIRCRAFT CORPORATION. Aug. 12, 1941, No. 10257. Convention date, Sept. 28, 1940. [Class 23] [Also in Group XXIV] A fluid operated friction clutch is provided with means for removing, by centrifugal action, sludge in the actuating fluid. As shown, for a cone clutch, the inner cone member 12 is slidably keyed to a shaft 10, the other member 16 having a clutch facing 28 being rotatably supported on the shaft 10. A piston 66 fixed to the member 16 engages a bore in the inner member 12 and has an inwardly directed conical extension 74. A corresponding coned flange 70 is attached to the hub 72 of the member 16. Pressure fluid enters the clutch through ducts 60 and passes to the space between the extension 74 and the radial wall of the member 16. Here sludge is thrown radially outwardly and passes to the outside of the clutch through ducts 88, 92. The cleaned liquid then passes radially inwardly and round the inner edge of the extension 74 where it acts upon the member 12 to cause engagement of the clutch. To disengage the clutch the supply of pressure fluid is stopped and all the fluid within the clutch is drained through the duct 92, a valve controlled aperture 118<SP>1</SP> being formed in the extension 74 for this purpose. A clutch-release spring 29 is provided. Valve means within the shaft 10 comprises a slidable plunger the ends of which co-operate with seats, one of which is formed on a tube 38 and the other of which is formed at 42 on a plug 34. Low pressure lubricating oil within the hollow shaft 10 acts on the right hand end of the plunger 40 and the clutch actuating fluid which enters the tube 38 acts on the other end of the plunger. In the position shown the clutch is disengaged. When the supply of actuating fluid is opened up the plunger is moved to the right and the fluid passes through passages 58, 48, to the ducts 60. A bearing 32 for the shaft 10 is supplied with lubricant through passages 52, 46, 54. In a modification the piston 66 has a radial wall instead of the partition 74 and radially arranged pockets lead to the outlet ducts 88. The invention is applicable to variablespeed gearing such as is described in Specification 547,676, [Group XXIV].
Patent GB-778945-A (GB)
Title: Improvements relating to the continuous dyeing of vegetable fibres with vat dyes
Inventor: HANNAY ROBERT STEWART ERSKINE
Filed: 1954-04-08
Abstract: In the continuous dyeing of vegetable fibres, e.g. cotton and linen, with vat dyes in an aqueous dyebath containing a vat dyestuff, sodium hydrosulphite and a caustic alkali, the caustic alkali concentration of the bath is between 120 and 400 gms. per litre.  Specified alkalies are caustic soda, caustic potash and a mixture of caustic soda with sodium zincate.  Fixation of the dyestuff may be effected by passing the impregnated material through molten metal, as described in Specifications 620,584, 661,086, 663,066, 665,454 and 681,983, or through hot oil or steam.  Numerous examples are given.