baber/WOPTO huggingface dataset:
Patent GB-2440021-A (GB)
Title: Frequency compensation of a switching regulator using an external zero
Inventor: GALINSKI MARTIN F III
IPC: H02M3/158
Filed: 2007-06-27
Abstract: A switching regulator controller 310 incorporated in a closed loop feedback system of a switch mode voltage regulator 300 has a compensation circuit 320 comprising an amplifier 330 with a first feedback resistor Rzero whose non-inverting input receives a feedback voltage VFB and whose output is connected via a second resistor RIN to an input of error amplifier 308 that compares a feedback voltage with a reference voltage VREF. A first capacitor Cpole and a third resistor Rf are connected between the input and output of error amplifier 308 and introduce a first zero (fig 4) in the closed loop feedback system. A second capacitor Czero can be coupled to the inverting input of amplifier 330, to introduce a second zero in the closed loop feedback system. Controller 310 may be monolithic and so capacitor Czero can be an external, off-chip capacitor, whose capacitance can be determined to suit the regulator LC output filter 11 values, and in particular the equivalent series resistance (ESR) of capacitor COUT that may be a tantalum, electrolytic or ceramic type. Gain of the closed lop may be increased by adding a resistor (fig 7, R1) and a capacitor (fig 7, C1) so that the gain is increased at a frequency determined by their values. Type II or type III compensation may therefore be implemented to compensate for the effect of poles in the inductor-capacitor (LC) filter 11, improve stability and prevent oscillation.
Patent GB-2452335-A (GB)
Title: A tamper proof GPS wrist/ankle band or collar
Inventor: BRAMLEY JAMES
IPC: A01K27/00
Filed: 2007-09-03
Abstract: A tamper proof GPS wrist/ankle band or collar worn by a human or animal that allows the location of the wearer to be known. The band or collar has at least a layer of Kevlar (RTM), with an internal pouch to hold the GPS system to prevent the removal and/or tampering of the GPS system and the band/collar from being damaged. The band/collar has an integrated combination lock A that prevents anyone from removing the band/collar except by the owner or combination holder. The location of the wearer within 5 metres may be available through SMS, internet, IVR or a managed service, with real time tracking. Preferably the band/collar has an internal chain, which is covered with Kevlar (RTM), with an outer waterproof banding.
Patent GB-2449510-A (GB)
Title: A method and system for the creation, management and authentication of links between people, entities, objects and devices
Inventor: BUCUK ASIM
IPC: H04L12/28
Filed: 2007-09-27
Abstract: Methods and systems for establishing relationships and creating links between entities (such as users, devices, organisations etc) are described. The method comprises receiving at a first device 110 over a short range wireless link, an identifier which relates to a nearby device 116. This identifier is sent to a server 112 associated with the first device and at least an identifier for a data object is also sent to the server. The server makes the data object available to an entity 118 associated with the nearby device by associating the identifier for that entity and the identifier for the data object. The data object may comprise a packet of data (e.g. a file or document), a link to data stored elsewhere or a collection of data (e.g. a collection of contact details). The nature of the relationship established is determined by the data packet. Embodiments describe a system for mutually authenticating links between devices capable of short range communication (Bluetooth, WiFi, infrared etc), each having an associated server database storing unique identifiers and between which authorisation data is transmitted. A first wireless device searches for proximal wireless devices and graphically displays them. On selection of a displayed device, an IP address of a server is determined from which access authorisation to the device is requested. The server authenticates the user of the first device by requesting verification from the displayed device or from a server associated with the first device. On verification the user of the first device may access personal data associated with the user of the device, control the device or access a service offered by the server. Embodiments also relate to wirelessly unlocking vehicles, billboard advertising, cash point machines, currency transfers, voting and banking.
Patent GB-2444634-A (GB)
Title: Drill bit with three ribs
Inventor: DURFEE LAVERNE R
IPC: B23B51/00
Filed: 2007-12-05
Abstract: The drill bit includes a shank 1 defining a longitudinal axis. Three ribs 8 extend in a curve about the longitudinal axis. The ribs include side edges 10 extending for a first portion 8a at a first angle relative to the longitudinal axis and for a second portion 8b at a second angle relative to the longitudinal axis. The second angle may be greater than the first angle. A lead screw 14 may extend along the longitudinal axis with threads extending at a thread angle. A cutting edge 12a is formed along the edge of each of the ribs. The cutting edge may have a bevel angle where the thread angle is less than the bevel angle.
Patent GB-2459307-A (GB)
Title: Method and apparatus for collecting rainwater from the roof of a building
Inventor: HONEY ALEX
IPC: E03B3/02
Filed: 2008-04-19
Abstract: A rainwater harvesting system comprises a collecting element in communication with water tank, wherein the collecting element is provided on a suitable surface of a building and the water tank is provided within the roof of the building.
Patent GB-2449207-A (GB)
Title: Glucose dehydrogenase
Inventor: KITABAYASHI MASAO
IPC: C12N1/21
Filed: 2007-03-27
Abstract: The invention provides a glucose dehydrogenase which is excellent in thermostability and substrate specificity and is not affected by dissolved oxygen. More particularly, the invention relates to the glucose dehydrogenase which is derived from a eukaryote and is characterized by maintaining 90% or more activity after a heat treatment at 55{C for 15 minutes in a liquid state compared to the activity before the heat treatment. The invention efficiently produces a glucose dehydrogenase derived from Aspergillus oryzae and provides a more practical glucose dehydrogenase. The invention provides a method for producing a filamentous fungus-derived FAD-GDH with excellent substrate specificity by high expression in a recombinant, a FAD-GDH protein obtained by the method and a glucose assay reagent utilizing the protein. The invention relates to a method of improving the stability of a composition containing a soluble glucose dehydrogenase (GDH). As the soluble GDH, the filamentous fungus-derived FAD-dependent GDH is preferable, and particularly, the best effect has been observed in an A. oryzae-derived FAD-GDH or an A. terrus-derived FAD-GDH.
Patent GB-2466425-A (GB)
Title: Analysing connections in a computer network, receiving checksums of data items in computer networks and determining error correction to data
Inventor: O'HANION SHANE
IPC: H04L12/24
Filed: 2008-10-09
Abstract: Analysing a connection between two computers, comprising generating output data indicating performance of the connection, the output data (graph) comprising a first predetermined number of data points (e.g. time period), each data point (time period) having a value selected from a predetermined second number of discrete data values (i.e. values 0-15). Each data point represents a corresponding flow value that is the amount of data passing between the two computers in each predetermined time period. A second embodiment of the invention includes transferring/receiving data from/at a computer from another computer, comprising determining/receiving a checksum of a data item, determining/receiving a plurality of secondary checksums, identifying the data item based upon the checksum and secondary checksums. A third embodiment of the invention includes receiving error correction data associated with received data, receiving secondary data with the received data, processing the data and error correction data to identify at least one error in the received data, and determine at least one correction to the error, processing the secondary data to determine whether the at least one correction should be made.
Patent GB-2464695-A (GB)
Title: A coupling device for connecting gas supply lines
Inventor: SAGE-PASSANT PETER
IPC: F16L37/413
Filed: 2008-10-22
Abstract: A complementary plug 2 and socket 4 connector for coupling gas supply lines comprises a socket having a body member 12, an end piece 14 attached to the body member, a piston 18 slidably mounted within the body member, a poppet valve 20 mounted within the piston, and a retaining sleeve 16 mounted around the body for retaining a plug, the end piece / nut having an internal wall 46 relative to which the valve 20 is able to slide. Ideally, the valve includes a valve stem / plunger 39 having a tail piece 44 which extends through a guide hole in the wall / plate. The valve stem preferably has an abutment piece 38 to limit movement relative to the wall. A tapered spring 36 is preferably provided between the piston and the (poppet) valve. The end piece 14 may be retained to the body member by a snap ring / circlip 22.
Patent GB-2464704-A (GB)
Title: Air motor
Inventor: MA THOMAS TSOI-HEI
IPC: F01B17/00
Filed: 2008-10-23
Abstract: An air motor is described having a variable volume air chamber 10 controlled by a reciprocating piston 12, intake and exhaust ports to and from the air chamber 10 controlled by respective cyclically actuated intake 14 and exhaust 18 valves for receiving compressed air from a compressed air storage tank 20 and discharging expanded air to the ambient atmosphere. The air motor is characterised in that it operates according to a four stroke cycle with an additional pair of air metering strokes prior to the expansion and exhaust strokes of the air motor, the pair of air metering strokes comprising an intake stroke during which compressed air from the compressed air storage tank 20 is admitted at substantially constant air tank pressure into an increasing volume of the air chamber 10 and a return displacement stroke during which some of the admitted compressed air in the air chamber 10 is returned at substantially the same air tank pressure from a decreasing volume of the air chamber 10 back to the compressed air storage tank 20. The pair of air metering strokes controls the quantity of compressed air retained in the air chamber 10 at the beginning of the expansion stroke of the air motor by the difference in mass flow transferred into and out of the air chamber 10 during the intake and return strokes respectively.
Patent GB-2455176-A (GB)
Title: Amine derivatives useful for treating ophthalmic diseases and disorders
Inventor: SCOTT IAN L
IPC: A61K31/137
Filed: 2008-10-22
Abstract: Compounds of Formula (A) or (I), or tautomers, stereoisomers, geometric isomers or pharmaceutically acceptable solvates, hydrates, salts, N-oxides or prodrugs thereof. Z and X are a bond or various linking groups, G is -C(R41)2-C(R41)2-R40, -C(R42)2-S-R40, -C(R42)2-SO-R40, -C(R42)2-SO2-R40, -C(R42)2-O-R40, -C(R42)2-N(R42)-R40 or -C(=O)-N(R42)-R40 wherein each R40 is -C(R16)(R17)(R18), aryl or heteroaryl, R5 is C5-C15 alkyl, aralkyl, heterocyclylalkyl, heteroarylalkyl or carbocyclylalkyl and the remaining R groups are various residues. Preferred compounds are aminoalkylbenzene derivatives. The compounds may be useful in treating ophthalmic diseases and disorders, in particular Stargardt's disease and age-related macular degeneration (AMD). Pharmaceutical compositions comprising the compositions are also disclosed.
Patent GB-2455890-A (GB)
Title: A scaffolding stand assembly
Inventor: JENKINS ANTHONY LEWIS
IPC: E04G1/28
Filed: 2008-10-24
Abstract: A stand assembly for attachment, in use, to a scaffold structure, in which the assembly comprises a platform 1 configured to support a worker, the platform comprises at least one clamp arranged to removably engage with the scaffold structure. The stand assembly also comprises a support member 3 pivotally connected to the platform and which can be configured to be at a position supporting the platform. The support member comprises a stopping member configured, in use, to retain that position. Preferably the support member 3 is a ladder. The support member may be pivoted relative to the platform 1 in a folded fashion. Preferably, the length of the support member is adjustable. The support member 3 may comprise a rest member 7 pivotally connected to the support member.
Patent GB-2455877-A (GB)
Title: Transceiver circuit for a wireless accessory of a portable computer
Inventor: AKKILA JARI
IPC: H04B1/40
Filed: 2008-12-18
Abstract: The circuit comprises an oscillator circuit (10), a control circuit (20) connected to the oscillator circuit, and a quenching circuit (30) connected to the oscillator circuit. According to the invention, the oscillator circuit (10) is formed of an LC resonator (L1, C16), the quality factor of which is at least 10, and the quenching circuit (30) is formed in such a way that the energy of the oscillator circuit is discharged by a predefined current. The interference caused by rapid quenching and power consumption caused by poor quenching are thereby reduced.
Patent GB-2452668-A (GB)
Title: Optical apparatus
Inventor: FEENSTRA BOKKE JOHANNES
IPC: G02B26/02
Filed: 2007-06-01
Abstract: Optical apparatus for a display device. The optical apparatus comprises a cavity, and a first fluid (14) and a second fluid (16), held within the cavity, which are immiscible with each other. The first and second fluids are separated from each other by a meniscus (28) having a peripheral edge (30). The optical apparatus further comprises a fluid motion control system arranged to control movement of the first and second fluids within the cavity using electrostatic forces, and a first surface (26) and a second surface (21). The first surface has a different wettability for the first fluid than for the second surface. The first and second surfaces are arranged in the cavity to determine, upon activation of the fluid motion control system, a motion of the fluids within the cavity which has a preferential initiation at a first part (32) of the peripheral edge.
Patent GB-2468310-A (GB)
Title: Mounting a stator core
Inventor: FULFORD HOWARD CHARLES
IPC: H02K1/18
Filed: 2009-03-03
Abstract: A stator core 1 comprising a pair of poles 3,4 separated by an air gap 5, and a pair of mounting recesses 13,14. Each pole 3,4 comprises a first side 8 adjacent the air gap 5 and a second opposite side 9 remote from the air gap 5. Each mounting recess 13,14 is arcuate and is formed in the second side 9 of a respective pole 3,4 and engages on the inside of a pair of posts 27 formed on a plastics housing 21 which supports the rotor 29 and its shaft 28 via bearing 30. A printed circuit board 24 is secured to the ends of the posts by screws 25. The neck section between at least one leg and its respective pole may increase in width at the end adjacent the pole and relative dimensions of the recesses are disclosed. Windings 23 are disposed around the leg parts 6,7
Patent GB-2458030-A (GB)
Title: Methods and apparatus for photonic power conversion downhole
Inventor: WILSON COLIN A
IPC: G01V1/40
Filed: 2007-09-05
Abstract: Subterranean oilfield sensor systems and methods are provided. The subterranean oilfield sensor systems and methods facilitate downhole monitoring and high data transmission rates with power provided to at least one downhole device by a light source at the surface. In one embodiment, a system includes uphole light source, a downhole sensor, a photonic power converter at the downhole sensor, an optical fiber extending between the uphole light source and the photonic power converter, and downhole sensor electronics powered by the photonic power converter. The photonic power converter is contained in a high temperature resistant package. For example, the high temperature resistant package and photonic power converter may operate at temperatures of greater than approximately 100{ C.
Patent GB-2471731-A (GB)
Title: Reading aid
Inventor: BYRNE SHEILA
IPC: B43L7/00
Filed: 2009-08-13
Abstract: A reading aid comprising a ruler having a slot or window through which a single line of text may be read. The ruler also has two grooves positioned along one edge in order to receive the users fingers and which provide a grip. The reading will preferably be made of coloured plastic and may also be calibrated with centimeters and inches.
Patent GB-2474280-A (GB)
Title: Cutting tool insert with ridges and troughs
Inventor: OLLERENSHAW ANDREW
IPC: E21B10/00
Filed: 2009-10-09
Abstract: An insert for a cutting tool 100 for use down a well bore comprises a body of a hard material tungsten carbide suitable for cutting steel. The body is shaped for formation in a mould that comprises a die 70 and first 74 and second 78 (fig 6) punches and arranged so that the first punch can eject the body after formation from an opening of the die closed during formation by said second punch. The insert has first 12 and second 14 ends whose faces are defined, at least in part, by corresponding faces of the first and second punch. Between them is a longitudinal axis 24 of the insert. The area of the first end is less than the area of the second end. The body has flanks 16 that form ridges 18 extending between the first and second ends. The ridges form cutting edges of the insert. They are separated by V-shaped troughs 20 of said flanks. The ridges taper and spiral about the axis. Alternatively, the insert may include tiers 140a where the ridges and flanks run between the tiers.
Patent GB-2462964-A (GB)
Title: Method and system for determining RFID tag tampering
Inventor: KARIM BAZLUL
IPC: G01V15/00
Filed: 2008-06-09
Abstract: The invention provides an RFID tag with means for determining when such tag has been tampered and means for securing the tag to an object. The tag may use an optical or infrared transmitter/receiver pair for detecting active tag removal from the object to which it is attached; and a method of attaching the tag holder to rounded objects regardless of object diameter while still preserving tamper capability of the active tag. Alternatively the tag may use an infrared radiation sensor to determine a change infrared radiation that occurs when the tag is removed from a person, and a light sensor to determine when tag has been tampered.
Patent GB-182879-A (GB)
Title: An improved device showing the apparent movements of the sun and moon
IPC: G09B27/02
Filed: 1921-04-05
Abstract: 182,879. Vickers, J. W. April 5, 1921. - Orreries.-Relates to apparatus for demonstrating the apparent movements of the sun and moon. A graduated annular dial 6 representing the ecliptic is supported by standards 8 from a plate 4 mounted to rotate on a base 2. A plate 14, representing a part of the earth's surface and bearing objects in relief, is hinged to a standard 10 within the dial. A vertical dial 18 representing the meridian is fixed to the plate 14 and can be turned by means of a friction wheel 30 and a knob 24 so as to alter the inclination of the plate 14 to represent different latitudes. An hour-dial 34 is adjustably secured to the plate 4 and co-operates with a pointer 38 fixed to the standard 10. The sun and moon are represented by electric bulbs 42, 43 or heads adjustably mounted on the dial 6. Beads representing the planets may also be attached to the dial. The apparatus may be made collapsable, and may be supported in a tilted position, with the plate 14 horizontal, by means of an adjustable leg. Specification 15800/91 is referred to
Patent GB-970123-A (GB)
Title: Improvements in and relating to incontinence pads and other pads for like purposes
Inventor: SMITH ANDREW ELLIOT
IPC: A61F13/15
Filed: 1961-03-20
Abstract: A diaper comprises an absorbent filling between an upper reticulated plastic film sheet and a lower liquid-impervious plastic sheet, the sheets being secured together at their bounding edges.  Cellulose wadding is enclosed between the sheet of reticulated film e.g. high density polythene, polypropylene, ethylene/butene copolymer or ethylene/propylene copolymer, which has square holes forming a mesh, and a sheet of polythene.  The liquid impervious sheet extends around the sides of the filling and is secured to the reticulated sheet by stitching, heat-sealing or adhesive.  Specification 914,489 is referred to.ALSO:A non-adhesive surgical pad comprises an absorbent filling between an upper reticulated plastic film sheet and a lower liquid-impervious plastic sheet, the sheets being secured together at their bounding edges.  Cellulose wadding is enclosed between the sheet of reticulated film, e.g. high density polythene, polypropylene, ethylene/butene copolymer or ethylene/propylene copolymer, which has square holes forming a mesh, and a sheet of polythene.  The liquid-impervious sheet extends around the sides of the filling and is secured to the reticulated sheet by stitching, heat-sealing or adhesive.  The pad may be used as an incontinence pad, a child's napkin or a sanitary napkin or may have extension pieces so that it forms a draw-sheet. Specification 914,489 is referred to.
Patent GB-903210-A (GB)
Title: Epicyclic reduction gearing
Inventor: FERGUSON DEREK PETER DOUGLAS
IPC: F16H1/28
Filed: 1958-03-28
Abstract: 903,210. Epicyclic gearing. NAPIER & SON Ltd., D. March 20, 1959 [March 28, 1958], No. 10096/58. Class 80 (1). In a planetary reduction gear between the shaft 13 of a gas-turbine carrying an input sun 10 and shaft 16 of an aircraft propeller carrying a planet carrier 20, to prevent misalignment between the planet pinions 12 and a fixed annulus 11 due to the planet carrier being connected to the output shaft 16 on one side only, the pinions are mounted on flanged resilient diaphragms 31 which are rigidly bolted at 30 between the carrier members 20, 21 and allow the axis of the pinions to deflect relative to the carrier. The sun pinion 10 is splined to the input shaft 13 and rotates in bearings 37, 38 carried on the ends of a number of circumferentially spaced resilient fingers 39 40 which extend axially from the carrier parts 20, 21 and resiliently maintain concentricity between the sun and the carrier. Rubbing pads 41, 42 are urged by lubricating oil pressure into contact with the innermost point of each side of the planets 12 to limit their deflection. Lubricating oil reaches the pinion bearings 33 through ducts 45, 46, sealed chamber 47 and duct 50. The fixed annulus 11 may be resiliently mounted as described in Specification 861,158.
Patent GB-180833-A (GB)
Title: An improved method of laying roofing tiles upon buildings or the like
IPC: E04D1/34
Filed: 1921-04-06
Abstract: 180,833. Bell's United Asbestos Co., Ltd., and Cann, J. A. April 6, 1921. Roofing.-Corrugated roofing tiles are laid so that they abut laterally and overlap longitudinally and the abutting edges are covered with narrow corrugated tiles b which overlap longitudinally and of which the upper edges abut against the lower edges of the main tiles. The tiles b are held by means of clips c attached to the main tiles a as shown, and no nailed portions areexposed.