baber/WOPTO huggingface dataset:
Patent GB-2284117-A (GB)
Title: An operational transconductance amplifier using MOSFETs
Inventor: KIMURA KATSUJI
IPC: H03F3/45
Filed: 1994-11-10
Abstract: An operational transconductance amplifier having a good transconductance linearity within a wide input voltage range that can be realized easily without increase in chip area. A first balanced differential pair of first and second MOS transistors (M1, M2) are driven by a first constant current source, and a second balanced differential pair of third and fourth MOS transistors (M2, M4) are driven by a second constant current source. The transistors have the same transconductance parameter. Drains of the first and fourth transistors are coupled together and drains of the second and third transistors are coupled together. A differential output current of the amplifier is derived from the output ends of the first and fourth transistors and the output ends of the second and third transistors. Gates of the first and second transistors are applied with an input voltage. Gates of the third and fourth transistors are applied with a voltage produced by dividing the input voltage. Various multipliers are also described. <IMAGE>
Patent GB-2284688-A (GB)
Title: Disk drive servo control system
Inventor: MUELLER FRANCIS EDWARD
IPC: G11B5/596
Filed: 1994-11-17
Abstract: A digital servo control system for a disk drive provides asynchronous servo information signal demodulation. The system includes a digital demodulator having a digital squarer 164 that removes any phase component of the digitized servo information signal and includes a burst signal accumulator 168 that accumulates the squared terms according to respective burst timing intervals to produce a digital, quadrature position error signal (PES). The demodulator also can include a filter 154 comprising a harmonic notch filter preferably implemented as a Hilbert Transform filter. In another embodiment the demodulator does not include a filter and squarer and, instead, the squarer comprises a sum-and-squarer that sums the squares of odd and even digitized samples. A split burst servo pattern for the servo control system is comprised of half-width transitions that can be written in a single pass of a recording head and therefore has no phase misalignment between adjacent flux patterns. <IMAGE>
Patent GB-2284732-A (GB)
Title: Spectral analysis of speech signals
Inventor: HOLMES JOHN NICHOLAS
IPC: G10L15/04
Filed: 1994-11-22
Abstract: The method of spectral analysis of signals, particularly speech signals, comprises the steps of deriving a time-varying first signal representative of the signal to be analyzed, filtering the first signal to obtain second time-varying signals each in one of a plurality of frequency bands, dividing the second time-varying signals into substantially equal units, dividing each of the second time-varying signals into a set of frames, each frame comprising at least one of said units. The position of the boundary between each frame is selected so as to minimise the "cost" of moving between frame boundaries. The subdivision of the signals should not blur or distort important acoustic or phonetic features of the signal and enables subsequent analysis of the signals to be performed in a way that is not computationally expensive. Application is to automatic speech recognition systems. <IMAGE>
Patent GB-2283214-A (GB)
Title: Use of thermoplastic sandwich material for the production of vehicle bodies
Inventor: RINGDAL LARS
IPC: B62D23/00
Filed: 1994-05-09
Abstract: This case concerns the use of laminates consisting of thermoplastic materials in the manufacture of car bodies/cabins and larger parts of such for vehicles. It is presumed that the application will be performed in one operation, preferably by means of rotational moulding. It is presumed that the materials in the different layers are bound to one another without the use of added adhesive/bonding agents. The application further consists of preferably varying qualities/colours in the different layers of the thermoplastic laminate.
Patent GB-2299361-A (GB)
Title: Temporary closure assembly
Inventor: LONGMAN ROBERT WILLIAM
IPC: E06B9/02
Filed: 1995-03-31
Abstract: A temporary closure assembly 10 comprises a framework 14 removably mountable across an opening such as a doorway, with a closure member 16 mounted thereto so as to be movable between positions closing and permitting access through the opening. Brackets 20 may be provided adjacent each corner of the framework 14 which mount sprung fingers 24 engageable in a rebate (32, Fig 3) of the opening and interconnected in pairs by wires 30 to permit ready retraction thereof.
Patent GB-2289106-A (GB)
Title: Apparatus for measuring the relative position of two members
Inventor: KENNEDY DAVID WILLIAM JACKSON
IPC: G01B5/14
Filed: 1995-05-01
Abstract: A rotary sensor 14 which responds to changes in the distance between two components in a vehicle suspension, one unsprung and one sprung, is driven by a link in the form of a crank part 16 connected to a rod 18 through a hinge 20 formed from flexible material. The link may alternatively be formed as a twisted strip (Fig. 2). The link is intended to reduce the problem of wear that takes place in drive links which include a mechanical articulation joint. <IMAGE>
Patent GB-2289636-A (GB)
Title: Wet-on-wet coating method
Inventor: HIROAKI ODA
IPC: C09D201/08
Filed: 1995-05-19
Abstract: The present invention provides a wet-on-wet coating method comprising applying, to a substrate:   (i) a thermosetting aqueous coating composition (A) which contains a base resin with a neutralization value of 10 to 40 KOH mg/g; and, to the uncured surface of the said composition (A); (ii) a thermosetting aqueous coating composition (B) which contains a base resin with a neutralization value which is from 10 to 20 KOH mg/g higher than that of the base resin of the aqueous coating composition (A).
Patent GB-2290438-A (GB)
Title: Intergrated user network interface device
Inventor: HUSCROFT CHARLES KEVIN
IPC: H04L12/70
Filed: 1995-05-30
Abstract: A method of interfacing between a non-continuous stream of cells of data eg. ATM, and a continuous stream of frames of data, eg. SONET/SDH, which includes transforming an incoming non-continuous cell stream into a continuous transmitted stream by inserting idle or non-assigned cells into the data stream during idle periods. The cells in the continuous stream are then mapped sequentially and continuously onto the payload portions of frames. The frames are then transmitted synchronously. Such a method bases the receiving and transmitting of information on a cell basis rather than a byte basis and thereby overcomes certain inefficiencies of conventional byte based methods. The delineation process is also disclosed. <IMAGE>
Patent GB-2304028-A (GB)
Title: A waste collection assembly
Inventor: SOULEY ANDREW WILLIAM
IPC: B65F1/00
Filed: 1995-08-05
Abstract: The assembly comprises a receptor support (10, Fig 4) which can be attached to a further waste collection receptacle (12, Fig 1). Individual waste receptors (14, Fig 3) are located and supported within the receptor support. Both the support and the receptors are provided with integrally formed handles.
Patent GB-2292121-A (GB)
Title: Life-saving floation unit and seat provided with such a unit
Inventor: RONZATTI GERARD
IPC: B63C9/30
Filed: 1995-08-10
Abstract: A life-saving floatation unit 6 comprising a closed fabric skin enclosing at least one buoyant element 11, said skin comprising at least one recess in the proximity of two opposite sides thereof forming releasable holding means for said unit upon a seat frame portion 4, 3a this recess being shaped to act as a continuous or discontinuous loose cover 10a, 10b, able to be slipped on said seat frame portion 4, 3a, so that the user may grab said unit without making any effort. This unit is applicable in particular to buoyant cushions (Figs 8 and 9, life jackets and vests (Fig. 6). <IMAGE>
Patent GB-2295965-A (GB)
Title: Receptacle
Inventor: MINDELL BERTRAM
IPC: A47B37/04
Filed: 1995-08-24
Abstract: A receptacle (1) which may contain food or drinks or may be a plant container for example is provided with an upright central locating tube (2) which is attached to an aperture in a recess (3) in its base and is mounted on e.g. a parasol pole (6) by means of a jubilee (RTM) clip (5) which encircles and grips spring fingers (4) which extend from the bottom end of the locating tube. The above clamping arrangement is concealed within the recess (3) and hence the appearance is enhanced. In a further embodiment the spring fingers are omitted and the locating tube is provided with apertures above and below the surrounding region of the base which enable the receptacle to be attached to the supporting pole by pegs or threaded fixing means and, when the receptacle is dismounted from the pole, function as drainage and/or ventilation holes. The clamp (e.g. "jubilee" clip) may be attached to the pole and the receptacle rested on top of it. Other methods of attachment are also disclosed. <IMAGE>
Patent GB-2294070-A (GB)
Title: Rotary drill bit with enclosed fluid passage
Inventor: CLEGG JOHN MARTIN
IPC: E21B10/54
Filed: 1995-09-29
Abstract: A rotary drill bit for use in drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, a number of blades 12, 14, 16, 18, 20, 22, 24, 26, 28 formed on the leading face of the bit and extending outwardly away from the axis of the bit so as to define between the blades a number of fluid channels 30, 32, 34, 36, 38, 40, 42, 44, 46 leading towards the gauge region, a number of cutting elements 48 mounted side-by-side along each blade, and a number of nozzles 50, 52, 54, 56, 58, 60 in the bit body for supplying drilling fluid to the fluid channels for cleaning and cooling the cutting elements. In at least one of the fluid channels 30, adjacent the gauge region, is an opening 96 into an enclosed passage 98 which passes internally through the bit body to an outlet 100 which, in use, communicates with the annulus between the drill string and the wall of the borehole being drilled. The portion of the gauge region outwardly of the opening comprises a bearing surface 102 which, in use bears against the wall of the bore hole and extends across the width of the channel 30. <IMAGE>
Patent GB-2306502-A (GB)
Title: Briquettes containing an oxidiser
Inventor: JABRZEMSKI KRZYSZTOF
IPC: C10L5/36
Filed: 1995-10-23
Abstract: Briquettes, particularly based on carbonaceous matter, contain an oxidising material e.g. inorganic nitrate, nitrite, chlorate, perchlorate, permanganate etc. or nitrocellulose. The briquette may also be treated with an oxidising acid such as nitric acid to form the oxidising material. The briquettes may be layered or shaped with an igniting layer containing the oxidiser and may have flues running therethrough. Utility may be domestic or industrial.
Patent GB-2309523-A (GB)
Title: A location-dependent message system
Inventor: SILVIE JON ALEXANDER
IPC: G01S13/76
Filed: 1996-01-23
Abstract: A system comprising a device 2 which can be carried by a user and a transponder 1 which can be mounted at a specific location; the device having means 3 to communicate with the transponder when the user is within a predetermined distance from the transponder to cause the transponder to transmit a code 5 specific to the location; the means 3 receiving the location-specific code and employing the code to retrieve a message providing location specific information, eg a spoken message, to the user from a random access store 7 for playback (at 8). A number of transponders can be provided at respective different locations each with it's own code to trigger a different message.
Patent GB-2315654-A (GB)
Title: RF assisted microwave hybrid furnace
Inventor: WROE FIONA CATHERINE RUTH
IPC: H05B6/80
Filed: 1996-07-25
Abstract: A microwave furnace has additional RF heating via electrodes 68,70 supplied from a 50* capital Greek omega * RF generator 80 via a matching network 78. The RF source provides a oscillating electric field within the object 88 at a location and/or at a temperature where the field strength of the microwave induced field falls below a predetermined threshold value.. This permits ceramic materials treated in the furnace to possess a higher final density as shown in fig 11. Conventional radiating electric elements 64 may be included. Alternative conventional gas units may be employed. The heating systems may be separately controlled.
Patent GB-2309077-A (GB)
Title: Detecting defects in a structure by temperature distribution measurement
Inventor: YAMAZAKI KENICHIRO
IPC: G01N33/38
Filed: 1996-08-02
Abstract: In order to detect a defect in a structure (31), such as a concrete bridge, the radiation energy from the surface of the structure is measured by means of an infrared radiometric thermometer (2). This thermometer is used to detect areas of the surface having a temperature which is different by 0.3{C from the temperature of the surrounding areas. It is determined that there is a defect present if the area detected is not less than 400 cm 2 . Furthermore, the radiation energy in both day time and at night time is measured and the temperature distributions of the structure's surface at these various times are obtained. Since defected areas have a higher temperature than non-defected areas during the day, and a lower temperature during the night, defects in the structure can be more accurately detected by determining the differential temperature distributions between these various times, since the difference between defected and non-defected areas then becomes more enhanced.
Patent GB-2305932-A (GB)
Title: Soap bar
Inventor: DODD SARAH RUTH
IPC: C11D9/44
Filed: 1996-10-07
Abstract: A soap bar comprises from 10% to 99% by weight of the bar of at least one soap base and from 0.1 to 10% by weight of the bar of at least one temperature sensitive dye. The soap bar is operative to change colour when the temperature of the bar moves beyond a transitional temperature for the temperature sensitive dye.
Patent GB-2318713-A (GB)
Title: Reduced power density region in an electric heater
Inventor: TAYLOR JOHN CRAWSHAW
IPC: H05B3/26
Filed: 1996-10-22
Abstract: There is disclosed an electric heater 2 of the type comprising an electrically resistive heating track 8 applied to an electrically insulating substrate 6. In a region 10 of the heater intended to receive a thermally sensitive actuator 12 of a thermally sensitive control, a portion of the track 8 is made wider than an adjacent portion of the track so as to reduce the power density per unit area of the track in that region.
Patent GB-2302191-A (GB)
Title: Bit error measuring instrument
Inventor: SOTOME TETSUO
IPC: G06F1/12
Filed: 1996-02-22
Abstract: A pattern generating means, a multiplexing means, and a pattern position specifying-recording means of a testing device used for testing bit errors. An M-channel pattern generator and a pattern generation control section (10) which allows the pattern generator to output a pattern while successively switching the generating section of each channel and when a certain channel is selected to output a pattern, controls the pattern generating operations of the ondly, a clock frequency difference detecting section (150) which measures the frequency of an input clock (111), detects a frequency change that exceeds a prescribed frequency difference by comparing the measured frequency with the frequency value meajudges whether or not measurement is being conducted, and controls the permission/inhibition of the phase inverting operation of a clock switching circuit (128) is provided. Thirdly, a pattern position recording section (210) which stores the information about the reference pattern generating position of a reference pattern generator (262) in a recording memory (220) when an error detecting signal (265a) from a collating device (265) is detected, is provided.
Patent GB-2311827-A (GB)
Title: A friction clutch having wear compensating means
Inventor: VEHARA HIROSHI
IPC: F16D13/75
Filed: 1997-02-14
Abstract: A friction clutch comprises a fulcrum slide ring 8 and a wear-responsive adjust slide ring 7 which are coaxially disposed on a clutch cover 1. First biasing spring 13 circumferentially urges the fulcrum slide ring 8 relative to the clutch cover 1, and second biasing spring 15 circumferentially urges the fulcrum slide ring 8 relative to the adjust slide ring 7. This circumferential action moves, via inclined guide surfaces (11, fig 4), the fulcrum slide ring 8 and the adjust slide ring 7 axially towards clutch facing (4, fig 2), thereby reducing gap (S1, fig 6) which appears as the clutch facing wears. A wear detecting resilient member 9 aids an alternating movement between adjust slide ring 7 and the fulcrum slide ring 8 (ie they move circumferentially in opposite directions) which shifts a fulcrum point 9b of diaphragm spring 6 so that a reliable and immediate adjusting action can be accomplished. The second spring 15 has a smaller spring force than the first spring 13 which allows, during a clutch release operation, the second spring 15 to be compressed returning the fulcrum slide ring 8 and the adjust slide ring 7 to their original positions. Second spring 15 is installed in a pre-compressed initial state, this is maintained during assembly by a pin 19.
Patent GB-2312971-A (GB)
Title: Anti-trapping device
Inventor: PRUESSEL HOLGER
IPC: G01M99/00
Filed: 1997-04-22
Abstract: In a system to monitor the operation of an adjusting drive 10 eg for an electric window or sun-roof, two criteria maust be satisfied before it is decided that an obstruction has been encountered and a corrective action is initiated eg to stop or reverse motion of the window 11. Firstly at any given position a measure of the speed 12 of the motor during the current operation must exceed the speed 16 at that position during a previous normal operation of the device by more than a set amount. Secondly a value dependent upon the first and/or second positional derivative of a measured variable of the drive eg speed or supply voltage must deviate from a second reference 17. Taking account of the second factor prevents erroneous operation of the safety means resulting from changes in the supply voltage between operations.
Patent GB-2316942-A (GB)
Title: Purification pentafluoroethane
Inventor: SCHIRMANN JEAN-PIERRE
IPC: B01J19/02
Filed: 1997-08-29
Abstract: Crude pentafluoroethane (F125) containing chloropentafluoroethane (F115) is purified by subjecting it to heat treatment in the presence of hydrogen, the treatment being carried out at a temperature of at least 550{C and with an H 2 /F115 molar ratio of at least 10. It is thus possible to obtain particularly pure F125.
Patent GB-2317605-A (GB)
Title: Display containers
Inventor: MACLEAN DOUGLAS
IPC: A47F5/11
Filed: 1997-09-30
Abstract: A dump display container made of corrugated board or the like, for standing on the ground and defining an upwardly opening walled and floored storage space (32) for articles for sale, is collapsible into a substantially flat condition for storage. The container comprises an outer tubular body made of hingedly interconnected wall panels, foldable substantially flat, and an inner floor structure, separate from but secured to the tubular body, which is foldable between a substantially flat condition inside the body and an expanded condition in which it defines the storage space floor.
Patent GB-2320032-A (GB)
Title: A sintered body produced from two compacted partial bodies
Inventor: GRUNDNER ALOIS
IPC: B22F7/08
Filed: 1997-11-26
Abstract: A method of producing a sintered body 1 having different cross-sections along its main axis 5 (e.g. toothed belt or chain wheels) by fitting two partial bodies 6 and 7 together along the main axis 5 of the body 1 and jointly sintering, the partial bodies 6 and 7 having been separately compacted and optionally pre-sintered. In addition to the sinter connection, the partial bodies 6 and 7 are also preferably mechanically connected together by caulking or beading of corresponding peripheral portions 9 after the joint sintering. To obtain different material properties, such as different radial shrinkage or abrasion resistance, the partial bodies 6 and 7 may be made from different powders. A body 1 produced from such a method is also claimed.
Patent GB-2318620-A (GB)
Title: Friction coupling device
Inventor: MIZUKAMI HIROSHI
IPC: F16F15/123
Filed: 1996-10-04
Abstract: In a friction coupling device comprising a damper disc assembly 1, first core plates 15A are spacedly fixed circumferentially to an outer circumferential portion of the damper disc assembly 1, second core plates 15B are each fixed to a corresponding first core plate 15A adjacent thereto, and a cushioning plate 17 is disposed between the core plates 15A and 15B, a friction member 16 of a composite metal/ceramics material being fixed to the outer side of each core plate 15A, 15B.
Patent GB-2335264-A (GB)
Title: Container with snap-action lid suitable for an exterior light
Inventor: GIBBS PETER CHARLES
IPC: F21V31/00
Filed: 1998-03-10
Abstract: A container comprising a base 11 suitable for attachment to a wall and a snap-action lid 13, in which either the base or the lid includes a recess 15 facing away from the wall, for receiving a screw driver 33 to disengage the snap-action connectors. The lid's lower edge region has an external skirt (14,fig.2) which surrounds the base's upper edge. Connector elements 31 on the skirt's internal wall engage behind corresponding flange elements 26 on the base's edge. Security formations maintaining the relative positions of the base and lid when interengaged comprise upstanding formations 27 on the base's outer wall which are received in a channel (29,fig.2) defined by the lid's lip and skirt. A resilient sealing element 24 is held between an endless channel on the base's upper edge and an endless lip on the lid's lower edge.
Patent GB-2324045-A (GB)
Title: Metalwood golf club head
Inventor: ROSE DAVID L
IPC: A63B53/04
Filed: 1998-03-13
Abstract: A hollow metalwood golf club head comprises a weight 3 situated along the interior of the sole plate and towards the heel portion of the head. The resulting head has a high moment of inertia about the axis passing through the centre of gravity of the head.
Patent GB-2336799-A (GB)
Title: Portable workbench provided with tool box
Inventor: CHEN NICK
IPC: B25H1/04
Filed: 1998-04-28
Abstract: A workbench consists of a frame 10 provided with a receiving space 17 and an opening 18 in communication with the receiving space. Two threaded rods 20 are fastened pivotally with the frame. A fixed desk board 21 is fastened to the frame by bolts 22. Two movable seats 23 are fastened with the threaded rods and a movable desk board 24 is fastened pivotally with the movable seats. A tool box (29 Fig 2B) is received removably in the receiving space of the frame. Two handles 27 are fastened with the threaded rods such that the handles are capable of turning the threaded rods to drive the movable seats and thus to displace the movable board relative to the fixed board.