baber/WOPTO huggingface dataset:
Patent GB-2559044-A (GB)
Title: A vertical take-off vehicle
Inventor: IAN STEPHEN BELL
IPC: F42B10/48
Filed: 2017-12-12
Abstract: A vertical take-off vehicle, rocket or VTOL has an elongate body, a storage container 356, 358 suitable for storing propellant, a combustion chamber 366 in which the propellant is burnt to generate exhaust gases, a nozzle (370, fig 6) connected to the combustion chamber through which exhaust gases can be emitted to propel the vehicle upwards and a balloon 382 mounted on the body of the vehicle in a folded state. When deployed, the balloon is inflated by the exhaust gases. Preferably the balloon may be maintained in its inflated state by the exhaust gases. The nozzle may extend into, or towards, the inner space of the balloon when the balloon is in its inflated state. The vehicle may be capable of controlling the rate at which the combustion emits exhaust gases during the inflation of the balloon and to maintain the balloon in its inflated state.
Patent GB-2570892-A (GB)
Title: Electrochemical cell stack
Inventor: ADAM HARDING WHITEHEAD
IPC: H01M8/242
Filed: 2018-02-07
Abstract: A flow battery cell stack comprises a plurality of cells, each cell comprising a positive chamber for positive electrolyte, a negative chamber for negative electrolyte, a semi-permeable membrane M separating the positive and negative chambers, a respective bipolar plate BP closing each chamber remote from the membrane and at least one soft frame 101, 102 and at least one hard frame 103 regularly arrayed through the stack, wherein each membrane has a soft frame on at least one side and each bipolar plate has a soft frame on at least one side. The hard frames may be formed from an inert polymeric material, for example high density polyethylene, polypropylene or polyvinylchloride, and the soft frames may be formed from an inert elastomeric material, for example thermoplastic polyolefins. The hard frames may have nesting or inter-engaging features or both, preferably stepped rims or stepped projections, for dimensional stability of the cells. A redox flow battery comprises the flow battery cell stack of the invention.
Patent GB-2577030-A (GB)
Title: Scraper blade
Inventor: GIOVANNI PAULO COPPOLA
IPC: B01F27/91
Filed: 2018-03-13
Abstract: A scraper blade assembly for preparing single serve portions of freshly made frozen and/or chilled confections, such as ice-cream, yogurts or sorbets, in a conical container. The assembly comprises opposed blades presented upon a drive hub wherein each blade 1, 200 comprises a body 202 with curved outer surface 3a, curved inner surface 3b and leading edge 4, 201 wherein the leading edge is positioned between the inner and outer surfaces and the body projects downwardly from the hub. The leading edge is tapered such that the leading edge contacts the inner wall of the conical or tapered container in close fit engagement such that the leading edge scrapes or wipes the wall surface when rotated. The curvature of the inner surface of each blade causes inward flow mixing and aeration upon rotation. Ideally, the assembly includes a driver disc with cut-out curved slots where the blades can be inserted into and upon removal from the slots residual material is removed.
Patent GB-2572831-A (GB)
Title: Apparatus and methods for 3D sensing
Inventor: David charles william richards
IPC: G01S13/89
Filed: 2018-04-04
Abstract: An apparatus for generating a three-dimensional (3D) representation of a scene comprises a sensor module comprising: an emitter for emitting a plurality of waves (radiation, e.g. laser or structured light or a dot pattern); a receiver (e.g. sound sensor, microphone, light sensor, or CCD, CMOS or active pixel image sensor) for receiving waves reflected by one or more objects in the scene; at least one actuation module for controlling a position or orientation of one or more components (e.g. emitter, receiver) of the apparatus, the actuation module comprising a shape memory alloy (SMA) actuator wire; and a processor for generating a control signal for the actuation module for adjusting the position of one or more components of the apparatus. A position/orientation sensor such as a gyroscope or accelerometer may further be provided; the SMA actuator control signal may be generated using position/orientation changes. The device may have various embodiments including in a smart phone, tablet, security system, gaming, augmented reality (AR), wearable devices, drones, aircraft, spacecraft or vehicles, and may be applied to depth mapping, aerial or space-based surveying, terrestrial surveying, hydrographic surveying, underwater surveying or LIDAR applications.
Patent GB-2574416-A (GB)
Title: A method and an apparatus for determining a temperature of a rotor
Inventor: THOMAS WOLBANK
IPC: H02P29/66
Filed: 2018-06-05
Abstract: A temperature of a rotor RT of an electric induction machine 1 is determined by comparing an actual stator flux saturation saliency angle ASA with a temperature-independent comparative stator flux saturation saliency angle CSA. A set of temperature-independent comparative stator flux saturation saliency angles in a reference frame is determined. An actual stator flux saturation saliency angle in the reference coordinate frame depending on a machine model MM comprising at least one rotor temperature-dependent parameter is determined. A temperature-independent comparative stator flux saturation saliency angle is determined. The rotor temperature is determined as the temperature which minimizes the deviation between the actual stator flux saturation saliency angle and the temperature-independent comparative stator flux saturation saliency angle. A preferable reference frame is a coordinate frame fixed to the stator current angle or to multiples thereof. A temperature-dependent rotor resistance parameter rr of the machine model may be determined which minimizes the deviation, where the rotor temperature is determined depending on said rotor resistance parameter. The deviation may provide an input to a control function, in particular a PI control function CF.
Patent GB-2574610-A (GB)
Title: Polymer battery cell
Inventor: Melanie Claire O'Sullivan
IPC: H01M4/60
Filed: 2018-06-11
Abstract: A battery cell comprises an anode, a cathode, a separator between them, an anode current collector, and a cathode current collector, wherein the anode is an n-type polymer of formula (I) and the cathode comprises a p-type polymer with repeat unit (II), wherein R1 and R2 are each independently selected from H or a substituent; Ar1 and Ar2 are each independently an unsubstituted or substituted C6-20 arylene or heteroarylene group (preferably phenylene and naphthalene respectively); Ar3, Ar4 and Ar5 are each independently an unsubstituted or substituted C6-20 arylene or heteroarylene group (preferably phenyl); at least one aromatic ring atom of Ar3 is bound directly to an adjacent repeat unit or end group of the polymer; and at least one aromatic ring atom of Ar4 is bound directly to an adjacent repeat unit or end group of the polymer. A method of forming the battery includes depositing the relevant electrode material onto its associated current collector where the polymer is dissolved or dispersed in a solvent. Also claimed is a method of forming a battery cell electrode: providing a current collector with an insulating layer therein, wherein the insulator has a well which exposes the surface of the current collector; treating the insulkating surface and well with a surface treatment agent (preferably SF6 plasma); depositing an electroactive polymer into the well.
Patent GB-2575681-A (GB)
Title: Fence Post
Inventor: MARK ANTHONY NAYLOR
IPC: E04H17/20
Filed: 2018-07-20
Abstract: The fence post comprises metal folded into a H-shaped cross section, with a central rib 12 extending longitudinally along the length of the post and first and second opposing substantially planar surfaces 14, 16 extending laterally from the central rib, the central rib comprising a double layer of metal, the post further comprising fixing means 22 for attaching fencing material 24 to the post in use. The first surface may comprise a double layer of metal. The second surface may comprise first and second coplanar flanges 18, 20 extending from opposite sides of the central rib. The first and second flanges may comprise a single layer of metal. The fixing means may comprise fixing holes extending through the full thickness of the metal of the second surface. The first surface may be narrower than the second. The first and second surfaces may extend perpendicularly to the central rib. The metal may be galvanised steel or galvanised powder coated steel. The post may be folded using a cold-rolling process.
Patent GB-2578430-A (GB)
Title: Data communication
Inventor: BENJAMIN PICKERING
IPC: H04L29/08
Filed: 2018-10-25
Abstract: A method to recover an incomplete data stream S201 that comprises sequences of data points having respective values and sequences of missing data points. The smallest sequence of missing data points is selected S203 and values determined for each of the points based upon a missing data model S204. The model may be based on a linear model or a regularised model and may be created from a relationship between the incomplete data stream and further data streams provided by other data sources. The determination process may include a subset of data being selected that is centred on and spans the selected sequence of missing data. Data points with known values in the subset that are closest to the missing points are weighted higher and the weighted subset input to the model. The incomplete data stream is updated to include the determined values S205, the next smallest sequence of data points is selected and the process repeated until all missing data points are determined S206. A corrected data stream may then be output S207. The data stream may consist of video, audio, sensor data, financial data etc.
Patent GB-2566388-A (GB)
Title: Method and apparatus for operating an electric motor
Inventor: DAVID VICTOR PIETROMONACO
IPC: H02P27/08
Filed: 2017-06-09
Abstract: Apparatus and methods of operating an electric motor are provided, comprising energising a plurality of stator coils in sequence to rotate a rotor. Each said coil is energised with a repeating pulse sequence comprising at least a first portion and a second portion, the first and second portions repeating alternately to form the repeating pulse sequence. The first portion comprises a first pattern of pulses, each pulse in the first pattern having either a first polarity or second polarity, and at least two consecutive pulses in the first pattern having the same polarity. The second portion comprises a second pattern of pulses, the second pattern of pulses having the same pattern as said first pattern of pulses, but having inverted polarity with respect to said first pattern of pulses.
Patent GB-2580690-A (GB)
Title: Mapping an environment using a state of a robotic device
Inventor: Charles Fletcher Houseago
IPC: G06T17/30
Filed: 2019-01-24
Abstract: A mapping system and method for a robotic device 360 are presented, along with the method itself. The robotic device comprises an image capture device 320 such as a camera moveably mounted thereon, a state engine 340 which monitors the pose of the image capture device, and a mapping engine 350 which creates a 3D model 370 of the environment surrounding the robot. The pose of the image capture device with respect to the model is determined using an odometric error, a kinematic error, and a geometric error. The odometric error relates to the movement of the robotic device, the kinematic error relates to the movement of the imaging device relative to the robot, and the geometric error relates to the change in the image of the model. The robotic device comprises actuators 332 for controlling movement relative to the environment and may comprise actuators 334 to move the imaging device relative to the robot. The mapping engine may construct a deformation graph to apply a deformation to the model and may segment the model into active and inactive portions.
Patent GB-2582319-A (GB)
Title: Electrosurgical instrument
Inventor: JAMES DICKSON
IPC: A61B18/14
Filed: 2019-03-19
Abstract: A pivot assembly 200 for a surgical forceps instrument with deployable blade 302, the blade prevented from deploying while forceps jaws 202, 204 are open by mechanical interaction with pivot pin 206. The mechanical interaction may be one or more protrusions 402 of the pivot pin with complementary notches 404 in the blade or vice versa. The protrusion may be an orthogonally projecting fin or boss. The pivot pin may be rotationally locked to one jaw member with the other jaw member able to pivot around it. The pivot assembly may be in an end effector for a surgical instrument that may be part of an electrosurgical instrument or system. Surgical forceps with two jaw members where one or more pivots around a pivot pin, a cutting blade deployable when the jaws are closed and a lock to lock the blade to the pivot pin when the jaws are open.
Patent GB-2576804-A (GB)
Title: Binary-weighted attenuator having compensation circuit
Inventor: YAN YAN
IPC: H03H7/54
Filed: 2017-08-28
Abstract: Binary-weighted attenuator having compensation circuit. In some embodiments, a radio-frequency (RF) attenuator circuit can include a plurality of attenuation blocks arranged in series between an input node and an output node, with each of the plurality of attenuation blocks including a bypass path. The RF attenuator circuit can further include a phase compensation circuit implemented for each of at least some of the attenuation blocks having the respective bypass paths. The phase compensation circuit can be configured to compensate for an off-capacitance effect associated with the corresponding bypass path.
Patent GB-2582651-A (GB)
Title: A device, computer program and method
Inventor: ROBERT MARK STEFAN PORTER
IPC: H04L69/40
Filed: 2019-03-29
Abstract: A method of joining devices 115, 120, 125, 130 to a network comprises joining each device in a priority order, which may comprise joining a first and then a second device, wherein the priority level of the first is higher than that of the second. Back-off times, retry times and delays of registration requests may be applied to each joining device depending on priority level. A device may discover its priority level by discovering a registration API hosted by a network registry 105. The devices may be assigned to network switches 110 or ports based on priority level, which may themselves have a corresponding priority level. A device for carrying out the method is also disclosed, which may be the registry. The network may have a large number of devices attached, and may be an IoT or broadcast studio network. Failure of such a network may lead to the de-registration of the devices, and subsequent re-registration attempts by the devices may lead to congestion. This invention reduces the risk that all devices will attempt to re-register at the same time. High priority devices could be those carrying out critical functions, such as hospital ventilators and live studio cameras.
Patent GB-2569512-A (GB)
Title: Polymers and process for their manufacture
Inventor: Nathan Allcock
IPC: C08G65/40
Filed: 2017-09-21
Abstract: There is disclosed polymers, a process for manufacturing polymers and uses of the polymers. The polymers are polyaryl ether ketones and the process includes a nucleophilic polycondensation of a bisphenol with an organic dihalide compound in a reaction mixture comprising sodium carbonate and potassium carbonate, in an aromatic sulfone solvent, at a reaction temperature rising to a temperature from 290°C to 320°C immediately prior to the addition of a salt to the reaction mixture, wherein the molar ratio of the salt to potassium carbonate is from 6.0 to 10.0. Further organic dihalide compound is added to the reaction mixture wherein the molar ratio of further organic dihalide compound to bisphenol is from 0.009 to 0.035. The resulting reaction mixture is maintained at a temperature at from 290°C to 320°C for from 20 to 180 minutes and then the resulting reaction mixture is cooled and the PAEK recovered.
Patent GB-2571666-A (GB)
Title: Encoding variable length symbols to enable parallel decoding
Inventor: ANDREW KENNETH MARTIN
IPC: H03M7/30
Filed: 2017-10-27
Abstract: An approach is provided in which a source system partitions multiple symbol sets into multiple fixed width data chunks. During the partitioning, the source system creates symbol boundary information corresponding to symbols in the symbol sets relative to boundaries of the fixed width data chunks. In turn, the source system combines the fixed width data chunks into a multiplexed bit stream based on the symbol boundary information and provides the multiplexed bit stream to a destination system.
Patent GB-2573445-A (GB)
Title: Cemented carbide powders for additive manufacturing
Inventor: PAUL D PRICHARD
IPC: C22C29/08
Filed: 2018-02-17
Abstract: In one aspect, particle powder compositions are provided for article manufacture by various additive manufacturing techniques. A powder composition comprises a particle component comprising sintered cemented carbide particles having apparent density of at least 6g/cm3.
Patent GB-2588162-A (GB)
Title: Liquid crystal devices
Inventor: WILLIAM REEVES
IPC: G02F1/1335
Filed: 2019-10-10
Abstract: A method of removing a protective film (6, fig 1) from one side of a polarisation filter to expose a dichroic doped polymer active film 4 or a layer formed in situ on the dichroic doped polymer film. One or more functional layers (10a-30) of a liquid crystal device are then formed in situ on the side of the polarisation filter component. Optionally, the method includes forming a cross-linked polymer layer 8 on the side of the polarisation filter component in direct contact with the dichroic doped polymer active film, and forming the one or more functional layers over the cross-linked polymer layer. Optionally, the forming the functional layers comprises forming a stack of layers defining electrical circuitry for controlling the optical properties of the liquid crystal material. Preferably, the method includes containing liquid crystal material 36 between the control component and a counter component comprising another polarisation filter 32, and the stack of layers defines independently addressable pixel electrodes.
Patent GB-2577409-A (GB)
Title: A method of producing a two-dimensional material
Inventor: SIMON CHARLES STEWART THOMAS
IPC: C30B29/60
Filed: 2016-06-15
Abstract: A method of producing borophene, comprising; i) providing a substrate having nucleation sites within a close coupled reaction chamber having at least one precursor entry point to provide a separation between the substrate surface upon which the borophene is formed and the at least one precursor entry point that is sufficiently small; ii) cooling the at least one precursor entry point; iii) introducing at the at least one precursor entry point a precursor into the close coupled reaction chamber, the precursor being in a gas phase and/or suspended in a gas, and, iv) heating the substrate to a temperature that is within a decomposition range of the precursor, to provide a thermal gradient between the substrate surface and the at least one precursor entry point that is sufficiently steep, such that the fraction of precursor that reacts in the gas phase within the reaction chamber is low enough to allow the formation of borophene from boron released from the decomposed precursor wherein the distance between the surface of the substrate upon which borophene is produced and the point at which precursor enters the chamber is less than 100mm. The precursor may comprise a doping element. The method may comprise producing multiple stacked borophene layers.
Patent GB-2578231-A (GB)
Title: Powder removal systems
Inventor: DIANA GIULIETTI
IPC: B29C64/35
Filed: 2016-11-23
Abstract: A powder removal system for an additively manufactured article comprises a thermal container 101 which defines a cavity 103 to contain a non-reactive liquid 105 and the additively manufactured article within the thermal container, wherein the non-reactive liquid is a gas at room temperature and/or pressure. The system has at least one vibration device 207 attached to the thermal container or a liquid agitator 209 connected to the thermal container and configured to contact the non-reactive liquid. The vibration may be ultrasonic, the liquid agitator may use a tuyere, and the non-reactive liquid may be liquid nitrogen.
Patent GB-2592050-A (GB)
Title: Adapting models for artificial intelligence
Inventor: ALBERTO GIL RAMOS
IPC: G06N20/00
Filed: 2020-02-14
Abstract: An apparatus comprises means for providing a first machine learning model for classifying first input data to one of a first number of classes, for receiving an input indicative of one or more new classes to add to the first machine learning model and for receiving second input data for allocating to the or each new class. The means may be configured to adapt the first machine learning model to provide a second machine learning model by adding the one or more new classes to the first number of classes and to train the second machine learning model using the first input data and the second input data. The models may be Bayesian models and a prior probability distribution for the second model may be based on i) a posterior probability distribution learned for the first number of classes and ii) output(s) generated by the second model after receiving the first input data.
Patent GB-2582456-A (GB)
Title: System, device and method for fingerprint authentication using a watermarked digital image
Inventor: MARCIN JASINSKI
IPC: G06T1/00
Filed: 2017-09-28
Abstract: A system, device and method for fingerprint authentication using a watermarked digital image is provided. A device includes a display device including a touch screen configured to detect fingerprints; and, a controller. The controller: generates, at the display device, an image that includes, in one or more given areas, image-embedded fingerprint information; detects, at one or more portions of the touch screen respectively corresponding to the one or more given areas, user-fingerprint information representing a fingerprint; implements a comparison between the user-fingerprint information and the image-embedded fingerprint information; and when the comparison between the user-fingerprint information and the image-embedded fingerprint information is successful, implement an access process.
Patent GB-2595842-A (GB)
Title: Autotransformer rectifier unit system
Inventor: Ponggorn Kulsangcharoen
IPC: H02M7/08
Filed: 2020-04-09
Abstract: An auto-transformer rectifier system comprises an 18-pulse (or multiple of 18-pulse) autotransformer rectifier unit ATRU 30 having three, or a multiple of three, diode bridge rectifiers 5’a, 5’b, 5’c. A balancing resistor 40 balances the power flow through the diode bridge rectifiers and has a variable resistance. A controller 80 identifies imbalances between power flows of the respective diode bridge rectifiers and adjusts the resistance of the balancing resistor in response to the detected imbalance. The system may also comprise a three-phase supply 10, an input filter 20, a zero sequence blocking transformer (ZSBT) or inter-phase transformer (IPT) 60, a load 70 and common DC link 90. The controller may be an analogue circuit that detects signals indicative of imbalance and controls the resistance of the resistor accordingly. The resistor is any known variable resistor and may include e.g. a solid state switch such as a RDSon or MOSFET device.