baber/WOPTO huggingface dataset:
Patent GB-2286480-A (GB)
Title: Method and apparatus for generating high energy acoustic pulses
Inventor: WALTER BRUNO HARTWIG
IPC: B01F11/00
Filed: 1993-08-25
Abstract: A method and apparatus are disclosed for generating intense acoustic pulses by means of the water hammer effect. The method involves generating a water hammer in a conduit (5) by suddenly interrupting a high velocity flow of fluid through the conduit (4). The kinetic energy of the fluid flowing in the conduit (5) is converted into a high pressure pulse which propagates along the conduit (5) away from the point (7) where the fluid flow was interrupted. The high pressure pulse deforms the wall of the conduit (5) so as to radiate acoustic energy away from the conduit into a fluid medium (11) surrounding the conduit. The relative amount of energy dissipated in the form of mass flow in the surrounding fluid (11) and acoustic energy in the surrounding fluid (11) can be adjusted by changing the characteristics of the conduit wall. The direction in which acoustic energy is radiated into the fluid medium (11) surrounding the conduit (5) can be set by making the conduit wall asymetrical or by bending the conduit (5). Embodiments of the invention for acoustic cleaning, viscosity reduction in fluids and acoustic sedimentation are disclosed. <IMAGE>
Patent GB-2287927-A (GB)
Title: Vehicle platform lift
Inventor: PHILLIPS DAVID
IPC: B60P1/44
Filed: 1995-03-15
Abstract: A hydraulically-operated wheelchair lift, for a vehicle, comprises a platform (10, Fig 1) which can be raised hydraulically between ground level and a floor of the vehicle. A pivotally mounted flap 24 extends along an outboard edge of the platform and is movable between a raised stop-forming attitude and a lowered ramp-forming attitude by means of a hydraulic cylinder 34. The cylinder comprises a reciprocable operating rod 36 arranged to bear against a camming block 40 to cause rotation of the flap to its raised attitude upon advance of the operating rod from a retracted position to a first advanced position. The operating rod is arranged to be advanced beyond its first advanced position to assume a locking position as shown in which retraction by any lowering force which may be applied to the flap is precluded. <IMAGE>
Patent GB-2289918-A (GB)
Title: Extended range regenerative pump
Inventor: MOSS NORMAN
IPC: F04D23/00
Filed: 1995-05-24
Abstract: The pump casing has axially spaced, radially extending first and second sidewalls 52, 56 facing the first and second surfaces of the impeller respectively. Axially and radially extending blades or vanes are formed on an outer radial periphery of the impeller for driving fluid from the inlet (70) toward the outlet (72) as the impeller rotates about the axis of rotation. A fixed surface 166 formed in at least one sidewall of the casing for directing fluid back toward the impeller. Improved operating characteristics and extended range are accomplished through modification to the vane configuration of the impeller and/or by modification of the side channel configuration of the pump chamber in an asymmetrical fashion. Eg. the vanes may be bent forward in the direction of rotation (Figures 11 - 12). <IMAGE>
Patent GB-2290630-A (GB)
Title: Disk rotation control apparatus
Inventor: LEE DONG-JIN
IPC: G11B19/20
Filed: 1995-05-31
Abstract: Disk driving apparatus for controlling rotation of a disk in a normal mode includes a spindle motor (212), a servo control (230) for generating the spindle control signal, a device (222) for converting the spindle driving voltage into digital data, a device (240, 250, 260) for storing a rotation range data table of the spindle driving voltage corresponding to abnormal rotation of the disk, and a controller (220) for comparing and analyzing the converted digital data with the rotation range data table, sensing normal and abnormal states, and generating the servo control signal from the sensed results, wherein upon sensing the abnormal state the controller generates the servo control signals to apply a reverse torque to the spindle motor during a predetermined time, and sequentially perform a stop mode and then a normal driving mode. <IMAGE>
Patent GB-2290618-A (GB)
Title: Oxygen concentration detecting apparatus using limiting current oxygen sensor
Inventor: HASEGAWA JUN
IPC: F02D41/14
Filed: 1995-06-19
Abstract: An oxygen concentration detection system has a limiting current oxygen sensor S supplied alternately with a positive voltage (during oxygen measuring periods) and negative voltage (during sensor resistance/temperature measuring periods) by change-over switch 43. The measurements are determined from the sensor current 50. To shorten the time during which oxygen concentration cannot be detected, the timing periods are variable in response to sensor temperature, variation of sensor impedance, oxygen concentration or fluctuation thereof, or operation states such as engine temperature and air intake of an IC engine. To quickly activate the sensor, the negative voltage is continuously applied to determine the temperature of the sensor section 20 until the sensor is active, and a heater (26) is controlled according to the temperature determined. An alternative embodiment controls the timing periods in response to a predicted limited current. <IMAGE>
Patent GB-2291955-A (GB)
Title: Solenoid valves
Inventor: ZIEGLER EWALD DIPL ING
IPC: B60T15/02
Filed: 1995-07-26
Abstract: A solenoid valve (14) has a seat valve (44) with a closure element (43) which is surrounded with a clearance by an annular shoulder (53). Formed in a valve body (45) provided with the valve seat (46) of the seat valve (44) is an annular channel (64) into which the shoulder (53) engages with a slight radial gap in the closed position of the valve. On the outlet side of the seat valve (44), a pressure fluid channel (61) leads to the two end faces (33, 36) of a magnet armature (32) which actuates the seat valve (44). The valve (44) is biassed open by a spring (70) and is closed by energisation of a solenoid (28). Given a pressure gradient between a pressure fluid inlet (47) and a pressure fluid outlet (49), upon de-energisation of the solenoid (28) the seat valve (44) moves from a closed position and assumes a partly open position, since valve opening forces are countered by a pressure disequilibrium established across the magnet armature (32) as a result of the lower outlet pressure acting on the end face of the shoulder (53). The valve (14) can be used, in particular, in slip-controlled hydraulic braking systems of motor vehicles. <IMAGE>
Patent GB-2292984-A (GB)
Title: Releasable connection of tap body to a connector
Inventor: BYTHEWAY QUINN JONATHON
IPC: E03C1/02
Filed: 1995-09-05
Abstract: A tap assembly, method of installing it and a method of replacing it are provided in which the tap assembly comprises a tap body 1 and a connector 13, the connector being connectable to a fluid supply pipe and being releasably connectable to the tap body 1 by the insertion of at least a portion of one of the tap body 1 or connector 13 into the other and subsequently twisting the tap body 1 or connector 13 relative to one another. The tap body 1 may be provided with separate pipes 60, 61 for hot and cold water and cooperates with a rotary barrel valve 64 which aligns apertures 85, 86 with apertures 76, 77 of connector 13 to open the valve as tap body 1 twists to connect. In a separate embodiment a ceramic disc shut-off valve 90, 91, operable upon twisting of tap body, is provided. <IMAGE>
Patent GB-2302827-A (GB)
Title: Laboratory furniture
Inventor: MINSHULL ROBERT JOHN
IPC: B01L9/02
Filed: 1996-07-04
Abstract: An item of laboratory furniture is disclosed which, in one embodiment, consists of a central work station (70) around which are arranged three work benches (1). Each work bench (1) docks against the central working station (70) and the work benches (1) may be height adjustable. The central work station (70) includes water and/or gas and/or electricity supply and the supplies may be coupled to the work benches (1).
Patent GB-2315215-A (GB)
Title: Cosmetic compositions containing clays and preservatives
Inventor: KLUSIATIS JOHN MICHAEL
IPC: A61K8/25
Filed: 1996-07-13
Abstract: Cosmetic composition comprising:  (a) from about 0.1% to about 10% by weight of a crosslinked polymer of acrylic acid; and (b) from about 0.1% to about 10% by weight of a nonionic surfactant having the formula R(OCH 2 CH 2 ) n OH wherein R is a C 10 -C 16 alkyl group and n is a number average value in the range from about 3 to about 30; (c) preservative; and (d) clay; wherein the composition has a pH of about 6 or less. The cosmetic composition of the invention provides improved product stability and increased viscosity.
Patent GB-2315334-A (GB)
Title: Circuit feed detector
Inventor: CREAMER MICHAEL PATRICK
IPC: G01R31/02
Filed: 1996-07-16
Abstract: The ability to identify any electrical outlet in an installation without switching off the supply and not introducing interference to the electrical supply, whilst enabling total installation mapping for the purpose of maintenance, refurbishment or extensions thereto is of prime importance to Industrial, Commercial and Domestic premises. With a selection of adapters a load 9 (preferably resistive) is applied to an electrical outlet 1. The load is synchronised to be applied at virtually zero voltage crossover. This load is applied for a duration which can be detected, as the current is pulsed, by the operator at the distributed fuseway-m.c.b, by a clamp type current meter. Confidence in system operation can be seen before leaving the device by front panel indicators, and is described in detail with-in the main specification, which indicate that the outlet is live.
Patent GB-2301359-A (GB)
Title: 6-aryl-(methyl-or methylidone)-quinoline derivatives as voltage-gated
Inventor: CROSSLEY ROGER
IPC: C07C229/46
Filed: 1995-02-10
Abstract: This invention concerns a compound of generic formula (I) or a pharmaceutically acceptable salt thereof, where the dotted lines represent optional bonds, R 3 is an optionally substituted C 6 -C 10 aryl or heteroaryl group; optionally substituted by one or more substituents the same or different, R' represents one or more optional substituents the same or different, selected from the following: halogen, C 1 -C 6 alkyl, C 2 -C 7 alkoxycarbonyl, C 1 -C 6 hydroxyalkyl, CN, aminocarbonyl, C 2 -C 7 alkanoyloxy(C 1 -C 6 )alkyl, carboxy, C 2 -C 7 alkanoxylamino, optionally substituted C 6 -C 10 or heteroaryl or an optionally substituted (C 6 -C 10 aryl)alkyl or a heteroaryl alkyl radical; and R" represents one or more optional mono- or di-valent substituents in the 5, 7 or 8 positions the same or different: monovalent substituents being selected from the following: C 1 -C 6 alkyl, C 2 -C 7 alkanoyloxy, hydroxy, amino, C 2 -C 7 alkanoylamino, C 1 -C 6 alkylamino, C 1 -C 6 hydroxyalkyl, C 7 -C 17 aralkyloxyamino, R" can also represent hydroxy in the 6 position (when the optional bond is absent); the di-valent substituents being selected from oxo (i.e. = O) and methylene (i.e. = CH 2 ); and the N-oxides thereof, which compounds have pharmaceutical uses conferred by their ability to block voltage gated potassium channels.
Patent GB-2301654-A (GB)
Title: Valve, especially a thermostatic expansion valve
Inventor: RONNOW ALLAN
IPC: F25B41/06
Filed: 1995-03-21
Abstract: A valve, especially a thermostatic expansion valve, has a setpoint spring (15) which bears on a plate (14) having a sloping face (19). A setpoint adjusting device (5) is provided in a housing connecting tube (4). The adjusting device has a pressure-applying piece (21) having a contact face (20) engaging the sloping face (19), is secured against rotation and has a threaded bore (22). An adjusting screw (27) which is supported on the connecting tube (4) against axial displacement engages in this threaded bore. In this construction, the connecting tube requires no machining.
Patent GB-2318070-A (GB)
Title: Separating floating solids from a liquid
Inventor: WHITTAM MICHAEL DAVID
IPC: B03D1/14
Filed: 1996-10-12
Abstract: Apparatus for separating floating solids from a volume of liquid contained within a container (1) an edge of which forms a weir (3) comprises means (7,8) for sweeping surface floating solids over the weir (3). Operation of the sweeping means (8) is confined to an area of the liquid surface adjacent to the weir (3). Surface floating solids are continuously drawn into the 'operating' area by tension in the liquid surface.
Patent GB-2308954-A (GB)
Title: Call processing in a spread spectrum radio telephone system
Inventor: KIM GEUN-BAE
IPC: H04M1/72505
Filed: 1996-12-30
Abstract: A CDMA radio telephone system such as a cordless phone system has a base set 101 connected to a PSTN and a plurality of handsets 102-104 each having a unique pseudo noise (PN) code. For an incoming call from the PSTN, the base set transmits for a predetermined time a composite ring-on signal containing all PN codes to all handsets and each handset despreads the signal with its respective PN code. Following the ring-on signal transmission the base unit listens for a response from a first handset by despreading signals received using the first handset's PN code. If no response is received after a number of ring-on transmissions and listening periods, then a second PN code is used to listen for a response from a second handset and so on. If a response is received, a channel is established between the base set and handset corresponding to the PN code used and a ring-off signal is transmitted to the remaining handsets. A ring-on signal using only one PN code is used to send calls to a particular handset.
Patent GB-2324456-A (GB)
Title: Vehicle restraint for a dog
Inventor: WOODS DAVID
IPC: B60R22/10
Filed: 1997-04-24
Abstract: The restraint shown comprises a length of chain, at one end having a spring clip for attachment to a dog's collar and at the other end having a strap usable as a handle and including a vehicle seat belt clip.
Patent GB-2313212-A (GB)
Title: Device and method for limiting the vehicle speed of a working vehicle
Inventor: MURAKAMI TAKANOBU
IPC: B60W10/10
Filed: 1995-12-25
Abstract: A device and method for limiting the vehicle speed of a working vehicle, wherein it is possible not only to obtain a smooth running condition when the vehicle speed is limited but also set a limit to the vehicle speed that is suited to the environmental conditions. To this end, a vehicle speed control device (10) judges that the vehicle should run at a limited vehicle speed when a vehicle speed signal exceeds a vehicle speed limit value, calculates a correcting step-down stroke signal by a control gain based on a deviation value between a vehicle speed signal and a vehicle speed limit value such that the deviation value becomes smaller and outputs it to an engine control device (40), while when a vehicle speed signal is smaller than a vehicle speed limit value and the correcting step-down stroke signal is greater that a step-down stroke signal, the control device judges that the vehicle should be accelerated and outputs the step-down stroke signal to the engine control device (40).
Patent GB-2311437-A (GB)
Title: Apparatus for measuring an amount of a consumable used in printing
Inventor: TAKAHASHI KAZUYOSHI
IPC: A41H3/00
Filed: 1994-01-28
Abstract: The apparatus is applied to a inkjet printing system for printing an image pattern onto a piece of cloth, followed by a second image which may be a cutting pattern. It calculates the number of dots forming an image and uses this calculation to determine how much ink has been used and also the remaining operating life of the print head.
Patent GB-2327351-A (GB)
Title: Electrosurgical instrument
Inventor: GOBLE NIGEL MARK
IPC: A61B18/00
Filed: 1997-07-18
Abstract: An electrosurgical instrument for the treatment of tissue in the presence of an electrically conductive fluid medium comprises an instrument shaft 10, and an active side-effect tissue treatment electrode 12 at the distal end of a tungsten rod 14 within the shaft 10 for electrosurgically excising tissue pieces at an operation site. A ceramic tip 20 has an aperture 20a through which matter can be aspirated and removed from the region surrounding the electrode 12 by way of a channel formed within the shaft 10 and leading from the aperture 20a to a suction port 10a. The tissue treatment electrode 12 is coupled to a motor 44 so as to move cyclically relative to the shaft 10, and causes electrosurgical morcellation of the tissue pieces. Vaporisation of the fluid medium and tissue is controlled by pulsing the suction pump or adjusting the turbulence produced by reciprocating the electrode 12. Vaporisation is detected by a electrode peak voltage sensor. An RF power source is coupled to connectors 46,48. The rod 14 may be offset or cranked, and the electrode 12 may be end-effect.
Patent GB-2320233-A (GB)
Title: Compensating for installation orientation of attitude determining device
Inventor: WATSON GARY STEWART
IPC: G01C21/16
Filed: 1997-08-26
Abstract: In a method of compensating for installation orientation of an attitude determining device 20, the device is installed on-board a mobile craft 10, such as an aircraft, at an unknown orientation with respect to the reference coordinate system X,Y,Z of the craft 10, and its installation orientation with respect to an earth frame coordinate system is sensed when the craft 10 is at rest to obtain a static orientation measurement thereof. Thereafter, an attitude of the mobile craft with respect to the earth frame is measured with the attitude determining device and such measurement is compensated with the static orientation measurement to obtain attitude information of the craft's reference coordinate system with respect to the earth frame coordinate system. The installation orientation of the attitude determining device may be sensed while the craft is at rest in either a levelled or unlevelled condition.
Patent GB-2316817-A (GB)
Title: Power supply unit for improving power factor
Inventor: MIYAZAKI HIROSHI
IPC: H02M7/06
Filed: 1997-08-29
Abstract: In a power supply unit which prevents untoward noise from being made by short circuiting of a reactor 2, the zero crossing of an AC voltage of an AC power supply 1 is detected by zero crossing detector 10, after which a power factor improvement pulse (24a, Fig 2) is generated by a drive signal generator 11. The power factor improvement pulse (24a) is applied to short circuit element driver 12 to drive a short circuit element 4 to short circuit the AC power supply 1 via the reactor 2, improving the power factor of the power unit. After the generation of the power factor improvement pulse, a noise reduction pulse (26a) of a very small pulse width is fed from the drive signal generator 11 to short circuit element 4 to short circuit the AC power supply 1 via the reactor 2, preventing noise from being made by the reactor 2. Alternatively (Fig 3) the noise reduction pulse (26a) may be applied before the power factor improvement pulse (24a). The short circuit element 4 and reactor 2 may be connected after the rectifier 5 (Fig 4). The unit may be used for an air conditioner.
Patent GB-2321829-A (GB)
Title: Time Delay Control of Frame Synchronous Signal
Inventor: LEE JONG-WOONG
IPC: H04B7/26
Filed: 1997-12-19
Abstract: A digital radio communication system consists of a switching centre 100 and a plurality of base stations 141-14n. During frame synchronous signal transmission the switching centre transmits frame synchronous signals by transmission line to the plurality of base stations. Each of the base stations relays the received frame synchronous signal back to the switching centre. The switching centre then detects the delay between transmission of the frame synchronous signal to each base station and reception of the corresponding frame synchronous signal relayed back from it and transmits the detected delay to the base station in question. The base stations receive and compensate for the respective detected delays transmitted from the switching centre.
Patent GB-2335109-A (GB)
Title: Text enhanced telephony
Inventor: ENGELKE ROBERT M
IPC: H04M11/06
Filed: 1998-03-03
Abstract: A text enhanced telephony (TET) device connected to or incorporated in a user telephone set enables a user, who can speak but has attenuated hearing, both to hear the voice of a communicating party and also to see on a display 38 text characters of the words being spoken, voice and text data being communicated simultaneously over the same telephone line. When the user dials another party, the TET may automatically dial a TET relay (Figs.5,11,12) which then dials the other party. At the TET relay, a call assistant translates the words spoken by the other party into digital text characters which are sent over the phone line to the TET device. An enhanced TDD (telecommunication devices for the deaf) protocol may be used to transmit digital text data with a 7 bit 128 character set which allows for control data to be transmitted between the TET device and the TET relay. Data transmission may operate with frequency shift keying using the conventional TDD tones of 1400Hz and 1800Hz. Notch filters 20, 22 in the TET device and in the TET relay prevent the data transmission tones being heard by the user or call assistant, and prevent voice signals at these frequencies from interfering with data communication. The data passes via a band pass filter 26 and a tone detector/receive modem 28 for detection by a micro controller 30 and application to display 38. Other uses for the device include providing simultaneous translation in text form of a foreign language that the user understands only partially, and for recording telephone conversations in text form.
Patent GB-2335941-A (GB)
Title: Slidable hook member for use on a ladder
Inventor: ALLBRIGHTON STUART EDWARD
IPC: E06C7/14
Filed: 1998-04-02
Abstract: A support arrangement for use on a ladder 1 for supporting a paint container, for example, comprises an upper rung engaging member 5 which hooks around an upper rung 3 and which is adjustably engaged with a main member 10. The main member 10 may have an inwardly bent portion 11 which grips a lower rung 4 of the ladder. A tubular member 6 is attached to the main member 10 and is disposed at substantially 90‹ thereto. A rod 7, having hooks 8 and 9 for suspending paint containers disposed at each end thereof is slidably located within the tube 6. The main member 10 includes a slot 13 into which a bolt 14 attached to the upper rung engaging member passes through to be secured by a wing nut 12. This allows relative adjustment of the rung engaging members 5 and 11.
Patent GB-2327851-A (GB)
Title: A cage feeding or drinking container
Inventor: SEDDON ALAN MARK
IPC: A01K1/035
Filed: 1998-07-31
Abstract: Disclosed is a pet's cage 12 including a feeding or drinking container comprising a tray 10 of moulded plastics being slidable through an aperture (11) between the cage bars. Integral supporting members (21) and (22) maintain the position of the tray as it slides in and out of the cage for filling and/or cleaning receptacle 20. At all positions of movement of the tray 10 between its inner and outer positions a platform 19 together with side walls 15 and the base 17 leave no aperture in the cage wall through which the pet may escape. The device enables the filling and cleaning of the feeding or drinking receptacle without the operator having to place his/her hand inside the cage. A sleeping area 17 is provided.