baber/WOPTO huggingface dataset:
Patent GB-2439770-A (GB)
Title: Decision error compensation in wireless MIMO receivers
Inventor: QIU WEI
IPC: H04L1/06
Filed: 2006-07-05
Abstract: In a wireless Multiple Input Multiple Output (MIMO) receiver of Space Time Block Coded (STBC) data via several antennas (Fig. 1), distortion of the 16 QAM constellation (Fig. 2) due to a lattice reduction algorithm is corrected by nonlinearly quantizing the detected coordinate values into a table of candidate signals <B>L</B>, and then selecting the candidate signal <B>x</B> which is closest to received signal <B>y</B> when multiplied by channel estimation matrix <B>H</B> in order to yield the final transmitted bit decision <B>b</B> after demodulation. The distortion is caused by the conversion of the original channel matrix <B>H</B> (estimated from pilot signals) into a more quasi-orthogonal matrix <B>< >H</B> having shorter base vectors, thus improving detection algorithm performance at the cost of increased decision errors. Quantizing the least reliable co-ordinates not to the closest but the next closest integer effectively increases the area in which the signal will be correctly detected (extending into the grey areas in figures 5 and 6 which exemplify the effect of different conversion matrices <B>T</B>).
Patent GB-2433023-A (GB)
Title: Monitoring movement of rotating arms of a cleaning machine
Inventor: ANNECKE KARL HEINZ
IPC: A47L15/23
Filed: 2006-12-07
Abstract: The rotational speed of cleaning arms in a cleaning machine is monitored by an electronic control circuit, if the rotational speed drops below a certain threshold, an electronic circuit returns an error message and/or switches the machine off. In the monitoring of the rotational movement of rotating arms (2, 3, 7, 8) of a cleaning machine, a desired value (nk1sn, nk2sn) for basket rotating arms (7, 8), which are attached to an insertable basket (4), is modified as a function of the measured rotational speed value (n1i,n2i) of additional permanently installed arms (2, 3). Through such a sliding desired value, influences on the rotational speed value of all rotating arms due to interfering parameters, such as fluid pressure, temperature, viscosity, and chemicals in a cleaning fluid, can be compensated.
Patent GB-2449221-A (GB)
Title: Motive force generating device of the opposed magnet type
Inventor: SMITH MATT
IPC: H02K53/00
Filed: 2007-02-07
Abstract: A motive force generating device comprises a hollow generally toroidal or doughnut shape body 4 having a series of stationary magnets located therein in a circular fashion. The body of the device has a continuous slit 8 in the body. A series of arms 3 radiate from a central axis and pass through the body of the device. A magnet 5 is located on the end of each of the arms is located within the body of the toroid. The series of magnets 5 and associated arms 3 are free to rotate with respect to the body of the toroid and the fixed magnets contained therein. The interaction of the magnets as they rotate causes the magnetic flux to interact and a torque to be imparted to the arms and associated shaft. A machine such as a dynamo may be attached to the shaft for the generation of electricity.
Patent GB-2436449-A (GB)
Title: Method of making a field emission device
Inventor: TSAKALOKOS LOUCAS
IPC: C01B31/30
Filed: 2004-11-16
Abstract: A method of making a field emission device comprising applying a dielectric layer to a substrate, applying a conductive layer to the dielectric layer and forming at least one cavity in the conductive layer and the dielectric layer thus exposing the substrate. Thereafter growing a nanorod in the cavity by applying at least one catalyst particle within the cavity and exposing the catalyst particle and a portion of the substrate to a metal vapour and an oxidising gas to form an oxide nanorod. The oxide nanorod is subsequently exposed to a carbon containing vapour to carburize the nanorod and the catalyst particle is removed by etching for example. The catalyst particle can be applied as a pattern.
Patent GB-2448884-A (GB)
Title: A sealing element for a hydrodynamic seal
Inventor: WARREN PETER JOHN
IPC: F16J15/32
Filed: 2007-04-30
Abstract: A sealing element for a hydrodynamic seal which seals between relatively rotating elements 10, 12, the sealing element having a sealing surface 26 and comprising at least one stabilising ply 58 of fabric impregnated with or disposed in a binder material which prevents relative movement of fibres of the fabric during use of the seal.
Patent GB-2443303-A (GB)
Title: Method of forming coloured glass using a Fe2O3-Se complex
Inventor: JONES JAMES V
IPC: C03C4/02
Filed: 2007-10-17
Abstract: A method of forming a coloured glass is disclosed which comprises mixing a base material and a colorant including Fe2O3 and Se. The Fe2O3 and Se are combined in a frit or glass cullet as a Fe2O3-Se complex before being added with the base material. The complex form of selenium has a lower volatility than that of the uncomplexed form. The weight of Fe2O3 present may be at least 70% of the weight of selenium. The colorant may be added to the base material in a forehearth. The colorant may further contain MnO2.
Patent GB-2454898-A (GB)
Title: Back Protector
Inventor: TRAVELL GEOFFREY NICHOLAS
IPC: A41D13/05
Filed: 2007-11-20
Abstract: A protector for the back and spinal column of a wearer comprises a waist belt (44, fig.3), shoulder straps (41,42, fig.3), a flexible base sheet 10, a plurality of segments 20 attached to the base sheet in a linear array along an axis so as to permit flexing of the sheet 10 along said axis, the respective segments 20 being elongate and arranged to extend transversely of the axis so as to provide protection to a user's back, and an elongate flexible spinal strip 30 which is attached or attachable to the base sheet 10 and/or to the segments 20 so as to overlie the sheet and/or the segments in a region along the axis. The spinal strip 30 may be detachable by having a series of openings (38, fig.5) releasably engaging a corresponding series of catch members (16, fig.6) provided on the segments 20.
Patent GB-2450767-A (GB)
Title: 3D Display Device with Slanted Backlight
Inventor: LEE BYUNG-JOO
IPC: H04N13/00
Filed: 2007-12-27
Abstract: A display device 101 to display three dimensional images includes a display panel 110 including first to fourth pixels in a first direction, each of the pixels being narrower in the first direction than in a second direction e.g. rectangular; and a backlight unit 125 including two line light regions supplying light to the display panel 110 which are at an angle   r  with respect to the second direction, wherein light from the one region comes to right and left eyes of a viewer through the first and second pixels, respectively, and light from the other light region comes to the right and left eyes though the third and fourth pixels, respectively (figure 2B), wherein the display device has K view points. The line light regions may comprise actual light sources 115 or may be light concentrated at the light regions by lenticular lenses (figure 9), they may be straight or zig-zagged (figure 7A-C) and may be narrower than the width Pa of a pixel. A third light source may be provided for displaying 2D images (figure 8).
Patent GB-2447120-A (GB)
Title: Reversible cutting tool with shield
Inventor: FADER JOSEPH CONWELL
IPC: E21C35/18
Filed: 2008-02-14
Abstract: A shield 402 is removably mounted on a first end 422 of a reversible cutting tool 400 in order to cover and protect from debris a retainer 414 having a protrusion 418 which may be consequently fitted into a sleeve 404 in a holder block when the first end is worn. The cutting tool has a shoulder 310 at an interface between first and second cutting ends, each with a cutting tip 424 at its distal end, and a recess in the body portion with the retainer 414 positioned in the recess. Cutting ends can be mirror images of each other, or may be non-mirror imaged, for example with different gage lengths, to accommodate different operating conditions. With one of the cutting ends mounted in a holder 404, the shield 402 protects the retainer and recess features on the operating cutting end.
Patent GB-2459093-A (GB)
Title: Personal washing soap bar
Inventor: ASTOLFI RAFAEL
IPC: C11D9/60
Filed: 2008-04-08
Abstract: An extruded and stamped personal washing bar comprising: a) 45% to 60% of a fatty acid soap; b) from 0.3% to less than 1.5% of one or more added soluble salts of monovalent cations; c) less than 5.0% of a fatty acid; and d) a structuring system comprising: i) from 5.0% to 14% of a polyol selected from the group consisting of glycerol, sorbitol and their mixtures, ii) from 6% to 25% of a starch, and iii) 0 to 10% of water insoluble particles, wherein the sum of the weights of the polyol, starch and inorganic particles comprises at least about 20% but no more than 30% of the bar by weight-, and wherein the bar composition is an extrudable mass having a yield stress between 350 and 2000 kPa measured at a temperature of 40° C.
Patent GB-2447581-A (GB)
Title: Articulated drillstring entry apparatus
Inventor: HELMS CHARLES M
IPC: E21B19/22
Filed: 2008-06-13
Abstract: An apparatus located above a wellhead to allow a communications conduit to enter a drillstring, and a wireline service method for a drill string comprising a top drive and a rotary table are described. The apparatus has a main body (12) having an upper end and a lower end, said lower end including a lower connection (24) to the drillstring and said upper end providing an upper connection (22) to the drillstring and an entry port; and at least one articulated knuckle joint (30, 32) to allow deflection of said main body relative to said lower connection to the drillstring. The method comprises positioning the articulated joint(s) to align the entry port with the drill string below and offset the drill string above the body, inserting a wireline tool suspended from a wireline through the aligned entry port into the drill string, positioning the joint(s) to align the drill string above and below the body and offset the entry port; and operating the tool in the drill string below the body with the wireline through the entry port.
Patent GB-2454815-A (GB)
Title: Cyclist turn indicators using tilt switches
Inventor: TEDDER KENNETH SIDNEY
IPC: B60Q1/26
Filed: 2008-11-26
Abstract: Apparatus (2) for indicating when a cyclist (4) intends to turn right or left, including a first device (6) for attachment to a right arm (8) of the cyclist (4) and for indicating when the cyclist (4) intends to turn right, and a second device (10) for attachment to a left arm (12) of the cyclist (4) and for indicating when the cyclist (4) intends to turn left. The first and the second devices (6, 10) each have attachment means (16) for attaching the device to the arm (12), such as a strap which may be fastened using a Velcro (RTM) fastener, battery-operated indicator means (18), such as LEDs, which becomes illuminated when the arm (12) of the cyclist (4) is extended to indicate the intended turn, and at least two tilt switches (20, 22, 24, figure 16). The tilt switches are arranged so as to prevent unwanted illumination of the indicator means (18) in response to a different movement of the arm (8). Preferably, there are three of the tilt switches (20, 22, 24). The apparatus may include a plurality of LEDs arranged in a line, or forming an arrowhead, and may illuminate sequentially to emphasise the intended turn.
Patent GB-2467559-A (GB)
Title: Insulated rail joint monitoring apparatus and method
Inventor: JOSSE VALENTIN
IPC: B61L1/20
Filed: 2009-02-06
Abstract: A device and method for monitoring the flow of current between two points 20 along a rail in the vicinity of an insulated joint IBJ between track sections are provided. The two points may be separated by a distance equivalent to that between sleepers of the rail track. The device, which is a voltmeter, may comprise an amplifier 30 for amplifying any voltage difference between the points. It may further comprise two sensors, each having a fault detection switch 36 which is also monitored. A noise filtering arrangement (Figure 7), preferably a cable antenna, may also be included for reducing noise in the monitored signal. A rail track circuit which incorporates the device is also provided. The system allows the insulating ability of the joint to be checked in real time and potential faults to be detected.
Patent GB-2457574-A (GB)
Title: Random access slot selection in a communication system
Inventor: YEE DAVID MOON
IPC: H04B7/212
Filed: 2009-02-16
Abstract: A terminal ascertains 116 a burst characteristic 118 (e.g. a payload size 120 and/or a transmission rate 122) of a message to be sent from the terminal and selects 130 a timeslot in which to transmit the message, the timeslot exhibiting a burst type (e.g. a transmit size and/or slot transmit rate) corresponding to the burst characteristic 118 of the message and being randomly selected, in accordance with a terminal generated 126 random access parameter, from a set of timeslots within a communication resource. The communication resource is preferably divided into a sequence of frames each comprising a particular timeslot pattern (Fig. 5, 6 and 7) and a resource controller periodically sends a service announcement that identifies the set (50, Fig. 5) of timeslots that are configured for random access within a future frame. The random access parameter 'I' defines selection of an Ith occurrence within the sequence of frames, of a timeslot exhibiting a corresponding burst, i.e. preferably having a message transmit size at least equivalent to the payload size 120 of the message and/or a slot transmit rate matching the transmission rate 122 of the message (Fig. 9). The invention provides improved bandwidth utilization compared to the slotted ALOHA protocol which employs random access timeslots having the same size and transmission rate, and is particularly applicable to a random access communication resource maintained within a Demand Assigned Multiple Access (DAMA) system.
Patent GB-2470926-A (GB)
Title: Lighting system with sensor controlled illumination groups
Inventor: MCKINLEY ROBERT
IPC: F21S8/00
Filed: 2009-06-10
Abstract: A lighting system 10 is disclosed for a street or road. The system comprises a plurality of lamps 12 that are arranged in at least one group, with each group comprising at least two lamps. Each of the plurality of lamps comprises communication means 18 for transmitting and receiving signals to and from other lamps. At least one lamp of the group of lamps further comprises sensing means 19a for sensing the presence of a target and for outputting a signal to the communication means associated with the lamp. In use, when the sensing means of a lamp detects the presence of a target, the sensing means associated to said lamp outputs a signal to the communication means associated with said lamp, causing the communication means to transmit a signal causing lamps within the group comprising said lamp to illuminate.
Patent GB-2473281-A (GB)
Title: Steel cable fastener having a bearing and spring
Inventor: LIN RUEI-HSING
IPC: A47F5/08
Filed: 2009-09-07
Abstract: A steel cable fastener includes a bearing retainer 3 that carries a bearing device 31 and arranged inside the locking cap 1 to secure an end of the steel cable 6 and a resilient element, spring 2 arranged between the bearing retainer 3 and the locking cap 1 for relief of twisting stress induced in the steel cable through the rotation of the bearing device 31. The locking cap 1 is mounted using a thread 41 to a fixing seat 4. The fixing seat 4 may be foldable (see fig 5) to allow the steel cable fastener to be mounted in many different configurations.
Patent GB-2474848-A (GB)
Title: Planar loudspeaker
Inventor: COOKE MICHAEL PETER
IPC: H04R7/04
Filed: 2009-10-27
Abstract: The loudspeaker comprises a substantially planar, flexible diaphragm 2a and means for driving the diaphragm. The drive means comprises a linear conductor 1 a carried on the diaphragm and a magnet assembly 3. Vibration damping means 6, 8, 9 is arranged around the periphery of the diaphragm. The diaphragm is tensioned such that the speed of sound within the diaphragm is lower than the speed of sound in air (typically > 1 %).
Patent GB-2462775-A (GB)
Title: Controlling a bias current for an optical source
Inventor: GAO MIAOBIN
IPC: H01S5/06
Filed: 2008-05-22
Abstract: In one embodiment, the present invention includes an apparatus having a current mirror with a current source coupled to a first terminal and an output current to flow from an output terminal, a laser coupled to the output terminal to be biased by the output current, and a comparator to compare a voltage of the first terminal to the voltage of the output terminal and gate the current mirror based on the comparison. Other embodiments are described and claimed.
Patent GB-266926-A (GB)
Title: Improvements relating to the top rollers of doubling frames for stopping delivery ofyarn upon breakage of an end
IPC: D01H13/18
Filed: 1926-04-16
Abstract: 266,926. Whiteley, W. April 16, 1926. Delivery, stopping; rollers and roller heads; thread-guides.-In a doubling frame, the cap bars F are secured adjustably in the standards C by bolts J and are formed with inclines F<1>, F<2> at different levels connected by a step F<3>, whereby on breakage of a thread the corresponding top roller A moves downward on to the step F<3>, the thread being held between the roller and a shaft P supported in a bearing N. The shaft P is provided with pins R, adapted on rotation of the shaft P to re-set the rollers A in their working position and to maintain them therein. A glass guide-rod S is arranged either immediately below or slightly in advance of the centre of the roller B and has necks T, Fig. 3, formed therein to traverse the threads laterally on the rollers as the diameter of the cheeses E diminishes. In' the arrangement for coarse yarns shown in Figs. 1 and 2, the rollers A are held up by the tension of the yarn. With fine yarns the top rollers are arranged slightly forward of the bottom rollers and a stirrup W pivoted at X, Fig. 5, is normally held up by the tension of the yarn. On breakage the frame W falls and engages notches Z in the roller A, whereupon continued rotation of the bottom rollers B moves the roller A down the incline F<1> to the step F<3>.
Patent GB-288973-A (GB)
Title: Process for the refining of chromium ores
IPC: C22B34/32
Filed: 1928-04-03
Abstract: 288,973. I. G. Farbenindustrie Akt.- Ges. April 16, 1927, [Convention date]. Treating ores to remove undesired constituents. -The percentage of chromium oxide in chromium ores is increased by treating the ore at over 100‹ C. with an alkali hydrate or carbonate or mixture thereof in an atmosphere free from oxygen or other oxidizing agents. The ore may be treated with solution under pressure or may be fused with the reagents, the products being washed with water, alkali, or acid, filtered, and the enriched ore further worked up.
Patent GB-116900-A (GB)
Title: Improvements in Protectors for the Soles of Boots and Shoes.
Inventor: ORR JOHN STEVENS
IPC: A43C13/02
Filed: 1918-06-18
Abstract: 116,900. Orr, J. S. June 18, 1917, [Convention date]. Sole irons. - An adjustable protector made entirely of metal comprises a base-plate 1 having an upstanding rim 3, which is inwardl-v bent and provided with bendable teeth 6, and formed with a longitudinal tapering slot 7 and with narrow transverse slots 9 separating tongues 11, which are provided with nail holes 12 and may be stamped with non-slipping projections 14. The protector may be convexed to conform to the longitudinal curvature of the sole. The Specification as open to inspection under Sect. 91 (3) (a) also describes a modified construction in which the rim 3 is formed of a number of overlapping sections hinged together. This subject-matter does not appear in the Specification as accepted.
Patent GB-116901-A (GB)
Title: Improvements in Apparatus for Delivering Toilet-paper Piece by Piece.
Inventor: LUNDBERG JOHAN ADOLF
IPC: A47K10/20
Filed: 1918-06-18
Abstract: 116,901. Lundberg, J. A. June 12, 1917. [Convention date]. Sheet-separators.-A holder for toilet papers from which single sheets are pulled out by hand and a following sheet protruded, comprises a box or case having a friction separ. ating-roller rotated by the sheet drawn out, and suitable guides for the sheet as it moves from the pile. As shown, the pile of sheets 5 is pressed by a spring 10 or weight &c. against a roller 7 covered with a highlyfrictional material such as sandpaper, journaled preferably in grooves 16 in the sides of the box 1. The sheet 9 passes between a guide 12 and the spring 10 to and between rollers 11, 13, and is directed by a guide 14 between the rollers 13 and 8 and thence between the rollers 7, 8 by the curved rear side of the guide 12, and out of the casing through an opening 6. The roller 8 also may be covered with frictional material. Rotation of the friction roller 7 on ptilling-out the first sheet 9 causes the second sheet 15 to be forwarded after the rear end of the sheet 9 passes off the roller 7, the end of the sheet 15 being left protruding from the opening 6 when the sheet 9 has been drawn out. The box or receptacle 1 has hinged doors 2, 3, and the rollers are preferably all journaled, as shown, in the grooves 16.
Patent GB-520421-A (GB)
Title: Improvements relating to furnaces and stoking installations therefor
IPC: F23K3/14
Filed: 1939-03-31
Abstract: 520,421. Grates. RIJSWIJK, J. N. VAN. March 31, 1939, No. 10074. [Class 51 (i)] In furnace in which fuel is delivered by an underfeed stoker to a firepot communicating with an opening in a stationary firebed arranged above, the firepot is rotatable with reference to the firebed. As shown in Fig. 1, a screw conveyer 1 feeds fuel to the firepot 5 consisting of superposed rings the lower one of which is provided with gear teeth 9 by which the firepot is rotated by a toothed wheel 8 on the shaft 7 of the conveyer. A fan 19 supplies air to a chamber 14 beneath the firebed from which it passes through tuyeres 10, 11 in the firebed 6 to to the fuel above and to the fuel in the firepot. The firebed has supply and delivery pipes 12, 13 for cooling water.
Patent GB-291925-A (GB)
Title: Improvements connected with coin-in-the-slot machines
IPC: G07F1/02
Filed: 1927-04-13
Abstract: 291,925. Beddard, W. H. April 13, 1927. Tcsting coins.-In coin-freed apparatus of the kind described in Specification 29362/13 having two sliding pieces c, d guarding the entrance slot g and adapted to prevent the introducticn of soft discs and rubbish, two surfaces i, j are provided in front of the pieces c, d and form a diameter test to prevent the pieces from being moved apart by a coin of incorrect diameter. One surface j is stationary but adjustable bv means of a set screw j<3>, and the other i is formed on a pivoted catch i<2> which has a hook i<3> to engage a projection c<4> on the piece c. A correct coin moves the catch i<2> aside as shown and then forces the members c, d apart against springs c<2>, d<2>. Too small a coin will not move the catch i<2> sufficiently so that the hook i<3> engages the projection c<4> and prevents the piece c from being moved to let the coin pass. Too large a coin cannot pass between the surfaces i, j. Both surfaces may be formed on pivoted catches.
Patent GB-223823-A (GB)
Title: Improvements in ladies' hand bags and the like
IPC: A45C3/06
Filed: 1924-04-24
Abstract: 223,823. Litewsky, D. April 24, 1924. No Patent granted (Sealing fee not paid). Hand and like bags. -A hand or like bag has an interchangeable cover flap 4, Fig. 1, detachably secured in position by the end portion 3 being engaged with snap-button or other fastening means situated within the upper part of the rear pocket 2. The flap may in addition have an opening 10, Fig. 2, covered with transparent material, having behind it a pocket for the reception of a panel 12 of decorative material.