baber/WOPTO huggingface dataset:
Patent GB-2273667-A (GB)
Title: Process and device for the removal of the dissolved and/or emulsified hydro-carbons contained in waste water by steam stripping
Inventor: BLANC CLAUDE
IPC: B01D3/38
Filed: 1993-02-26
Abstract: A stream of water to be treated is conveyed (7, 8) to the upper part (2) of a stripping column and then flows to the lower part (3) by crossing an intermediate part (4) of said column comprising from 2 to 20 gas/liquid contact theoretical stages. Steam generated by reboiling (11) flows to the top of the column counter to the water stream to be treated and strips the hydrocarbons contained therein. At the head of the column a steam/hydrocarbon gaseous phase (5), which is condensed to form a liquid phase of a temperature equal to or below 30  DEG C, is discharged. The condensed phase is separated into an upper carbon/containing phase and a lower aqueous phase in a separator (19), the aqueous phase being preferably recycled into the stream of water to be treated. A purified water stream (6) is extracted from the bottom of the column. A particular water to be treated is oil and gas production/generated with water. <IMAGE>
Patent GB-2272450-A (GB)
Title: Aqueous surfactant VI phase compositions
Inventor: HAWKINS JOHN
IPC: C11D1/72
Filed: 1993-11-10
Abstract: Aqueous based VI phases (ringing gels) are used as laundry pre-spotters, e.g. in stick applicators, and for a variety of cleaning applications. The compositions typically comprise a non-ionic surfactant having an HLB greater than 15, a surfactant having an HLB below 10 and water.
Patent GB-2274386-A (GB)
Title: Mechanical acceleration sensor for a seat belt pretensioner or an air bag system
Inventor: NISHIZAWA MUNEO
IPC: B60R21/33
Filed: 1994-01-24
Abstract: The sensor includes an inertia weight 2, a latch lever 3, and a spring-loaded firing pin 4. The latch lever is disengaged from the firing pin by inertial movement of the weight relative to casing 1, thereby allowing the firing pin to perform a percussive firing action by the spring load. The weight is supported and guided in the casing by a pair of first and second guide members 6a, 6b. The first guide member 6a is closely fitted in the weight via hole 22, while the second guide member 6b is loosely fitted in the weight via groove 24. An error in parallelism between the first and second guide members is accommodated by the loose fitting of the second guide member and by enlargement of the clearance between the groove and second guide member in the direction of inertial movement of the weight (Figs. 2,6, 7, and 8). When sensing excessive acceleration, the weight effectively moves without interference with other members while only slightly rotating about the axis of the first guide member to absorb the error in parallelism. The sensor may be arranged to sense excessive acceleration, in the positive or negative sense, by fitting a stop screw 72 for the weight in one of two bores (101, 102, Fig. 3B) or by removing it altogether. <IMAGE>
Patent GB-2288138-A (GB)
Title: Cold pressure butt welders
Inventor: INGRAM DAVID JOHN
IPC: B23K20/02
Filed: 1994-04-06
Abstract: In cold pressure butt welding machines of the type in which a pair of wires, rods or sections are gripped in a pair of split dies and brought together under an axial upset pressure such that the yield stress of the parent metal is exceeded. The layout of gripping and upsetting components is such that the lines of action of these forces all converge at a point, eliminating undesirable bending moments on the mechanism. The dies are carried by pivoted arms actuated by a piston cylinder assembly (Fig. 1, not shown). Upsetting pressure is applied by piston/cylinders 7, 8 operating parallel to and either side of the welding axis. <IMAGE>
Patent GB-2290280-A (GB)
Title: Cargo Transportation Apparatus
Inventor: CRAIGON ALAN
IPC: B60P1/02
Filed: 1994-06-17
Abstract: A cargo transportation apparatus, for use in raising a cargo from a loading position to a transit position. The transportation apparatus comprises a load surface forming part of a load carrying box or ship 14, ground engaging wheels (24, Fig 1) and a chassis 16 having a towing socket 26, which engages a towing ball 28 of a towing vehicle 12. The chassis 16 has a first lower loading configuration and a second raised transit configuration and movement of the chassis between the two configurations is produced by longitudinal movement of the towing socket 26. The chassis preferably has two ports carrying, respectively the wheel (24) and the socket 26 and slidable relative to each other. Scissor type links 22, 23 are raisable on moving the towing vehicle 12 and locking wheels (24) to raise skip 14 for transport. <IMAGE>
Patent GB-2280483-A (GB)
Title: Mounting of equipment by screws
Inventor: SEKI MASARU
IPC: H05K5/02
Filed: 1994-07-27
Abstract: Mobile electronic equipment, e.g. a car stereo etc, is mounted in the car boot by means of an L-shaped bracket 5 screwed to the car and having clearance holes through which extend screws 16 which engage nut-like formations 13, 14, 15 pressed in the equipment housing 12. Each formation comprises a hole 13 and a slit 15, and a dished peripheral portion 14 which is stepped by varying its height around the hole 13. A number of sets of holes 13 are provided to accommodate different brackets 5. <IMAGE>
Patent GB-2280074-A (GB)
Title: Clock generating circuit and method for control of electrical systems
Inventor: RUSSELL DAVID MARK
IPC: H04L25/03
Filed: 1993-03-11
Abstract: A digital controller (12) is arranged to provide digital signals to audio modules (10), the digital signals comprising both clock signals and data. All of the logic circuits (18, 22, 23) of the controller (12) and of the modules (10) are arranged to be clocked on the receipt of a rising edge. However, to avoid interference from regular clock pulses, the clock pulses are altered to have a variable mark-space ratio. This means that the clock pulses arrive at random times and have random widths and thus appear to be randomised. The utilisation of randomised clock signals can avoid tones appearing in an audio system, and also avoids interference effects in other electrical systems. The use of randomised clock signals is particularly helpful when trying to design digital circuits which meet current regulations controlling electromagnetic emissions. <IMAGE>
Patent GB-2283058-A (GB)
Title: I.c. engine charge tumble intake system
Inventor: YAMAJI TOSHIO
IPC: F02B29/00
Filed: 1994-10-18
Abstract: The charge intake passage 31 has a straight portion 33 whose centre line is approximately parallel to the face of at least the exhaust valve for generating a tumble charge flow in the cylinder 40. A valve 27 associated with a partition wall 26 in the intake passage 31 may prevent flow in a region of the passage at light engine loads to increase the tumble at low charge flows. The charge control valve (27a, Figs. 4 to 6) may take various forms. The angle ( theta 1, Fig. 2) which the roof (41b) of the combustion chamber containing the intake valve makes with the cylinder axis (42) may be less than that ( theta 2) made by the roof 41a containing the exhaust valve. The engine may have intake passage or direct into the cylinder fuel injection. <IMAGE>
Patent GB-2296369-A (GB)
Title: Radio frequency ion source
Inventor: LANGFORD MARIAN LESLEY
IPC: H01J27/16
Filed: 1994-12-22
Abstract: An rf ion source, e.g. for a mass spectrometer, for low power operation over a range of pressures in air comprises discharge electrodes including one or more cathodes 1 and an anode 2. The or each cathode 1 is connected to an rf signal supply 8 through an associated coupling means 4 and the anode 2 is adapted to provide a surface area over which a plasma discharge may occur no greater than substantially that of the total cathodal area over which the discharge may occur. In this way the anode 2 presents no more useful surface than is required to accommodate the optimum area of the plasma discharge thereby preventing plasma wander and enhancing the stability of the discharge over known ion sources. <IMAGE>
Patent GB-2298367-A (GB)
Title: Device for inserting a decorative stud into the body
Inventor: TIRELLI OSVALDO AURELIO
IPC: A44C7/00
Filed: 1995-03-01
Abstract: A device for inserting a stud through a part of the human body, particularly the nose, comprises a first jaw 24 and a slidable resilient second jaw 29 . In use, the body part is inserted between the jaws 24 , 29 and ring 16 is manually retracted resulting in retraction of second jaw 29 thus squeezing the body part. Retraction of ring 16 also triggers release of plunger 6 which projects stud 28 through the body part causing the sharp point of stud 28 to engage the resilient second jaw 29 . Jaws 24 , 29 may be detached from the device and discarded after use. Also provided are decorative studs for insertion into the body ( Figs 3 and 4 ), comprising a head ( 40 ) and circumferentially ribbed shaft ( 44 , 45 ), able to resist removal from the body.
Patent GB-2299199-A (GB)
Title: Noise generating bicycle attachment
Inventor: LEES BRYAN
IPC: G10K1/076
Filed: 1995-03-21
Abstract: When fitted to a childs bicycle, the unit 6. seeks to provide, when fitted to the rear bicycle frame 1. and driven by the rear wheel tyre 3. and by mechanical means seeks to imitate the sound of a motorbike engine.
Patent GB-2288204-A (GB)
Title: A double cylinder lock having an axial force transmitting thrower
Inventor: WALKER ROBERT WILLIAM
IPC: E05B9/10
Filed: 1995-03-28
Abstract: A double cylinder lock assembly for a mortice lock has two key-rotatable plugs 2, ie barrels, in respective ends of a cylinder body 1, each adapted to turn a central split thrower 8. The thrower 8 is made from two interfitting arc shaped parts 14, 17 which are assembled together so as to define circumferential rims 16, 19 embracing external annular flanges 5 formed on the inner ends of the plugs 2, the parts 14, 17 being fastened together by means of a pin 22 through aligned lug extensions 15, 18. With this assembly, any axial load applied to either plug 2 tending to extract it from the body 1 will be transferred through the thrower 8 to the other plug 2 and thereby firmly resisted, irrespective of the relative angular orientation of the plugs. <IMAGE>
Patent GB-2293047-A (GB)
Title: Energy regulator
Inventor: TAYLOR JOHN CRAWSHAW
IPC: H05B3/14
Filed: 1995-05-24
Abstract: An energy regulator comprises a bimetallic actuator 10 heated by a heater 22 having a variable resistance. The heater may be a ceramic substrate heater having a positive temperature coefficient of resistance, so that as the temperature of the heater increases, its resistance decreases. This limits the heating effect of the heater at high settings of the regulator while increasing its heating effect at lower settings. Alternatively, the heater may have discrete resistance tracks which can be selectively switched in or out. <IMAGE>
Patent GB-2293652-A (GB)
Title: Predicting mechanical failure in underground formations
Inventor: WINKLER KENNETH W
IPC: G01V1/50
Filed: 1995-08-14
Abstract: A method for determining whether a formation is subject to incipient failure is disclosed. The method comprises determining in situ a nonlinear parameter of a formation, and determining whether the nonlinear parameter and/or a derivative of that nonlinear parameter as a function of stress has a relatively large negative value in order to determine whether the formation is subject to incipient failure. In a preferred embodiment, the nonlinear parameter of the formation is a derivative of the square of the shear or compressional velocity with respect to formation stress. The nonlinear parameter of the derivative of the square of the shear velocity with respect to stress is considered to have a large negative value when it is S -0.1 (km/sec)<2>/MPa, while the nonlinear parameter of the derivative of the square of the compressional velocity with respect to stress is considered to have a large negative value when it is S -0.2 (km/sec)<2>/MPa. The derivative of the square of the shear or compressional velocity with respect to stress is considered to have a large negative value when the derivative is S -0.06 (km/sec)<2>/(MPa)<2>. Typically, rocks will fail if uniaxially stressed between 1 - 5 MPa beyond any of those points.
Patent GB-2292842-A (GB)
Title: Rectifier circuit not using a clock signal
Inventor: KIMURA KATSUJI
IPC: H02M7/217
Filed: 1992-10-05
Abstract: In a first arrangement, Figure 3, the AC input is applied to input terminals 16, 16' of a first amplifier 18 incorporating first and second differential amplifier 19 transistor pairs M11, 12 and M13, 14 and first and second constant current sources CS11, 12, whereby the a.c. input is differentially amplified. The output of amplifier 18 is supplied to a differential output current generating circuit 19 incorporating three current mirror circuits and yielding an output current having a constant DC component and a component varying with the AC input. The DC component is removed in a second amplifier 20 which gives a full wave rectified output at terminals 17, 17'. Each of the transistor pairs of amplifier 18 comprises transistors which have different capacity values. The arrangement may be implemented as an integrated circuit using MOS or bipolar transistors or both. In a second arrangement, (Figure 4), a first amplifier (28) differentially amplifies the AC input and a first DC signal (302), a second amplifier (29) differentially amplifies the AC input and a second DC signal (303), and the outputs of the amplifiers (28, 29) are connected in antiphase to provide a rectified output. The DC signals (302, 303) are changed over by switches (S71, S72) controlled by a comparator (A71) which judges the polarity of the AC input relative to a DC bias voltage (E0) rather than relative to zero. The second arrangement may be modified, (Figure 4A), to give half wave instead of full wave rectification. <IMAGE>
Patent GB-2293928-A (GB)
Title: Self-commutated inverter arrangement
Inventor: SCHETTLER FRANK
IPC: H02M7/48
Filed: 1995-10-03
Abstract: A self-commutated inverter arrangement includes a device 6 to increase the fundamental power yield of a self-commutated inverter 2 with capacitive store 4. The outputs of the self-commutated inverter 2 are provided with the device 6 which has per phase (R, S, T) at least one single-phase cascade 8, which consists of a capacitive store 10 and a switching device 12, with which the capacitive store 10 can be connected into or disconnected from the phase (R, S, T) at will. In this way the fundamental power yield of the inverter 2 is increased. Switching devices of the inverter 2 and device 6 may be GTO thyristors (14, figs 4 and 6). The arrangement may be used as a reactive power compensation device. <IMAGE>
Patent GB-2306941-A (GB)
Title: Invalid Lifting Device
Inventor: SELDE KLAUS
IPC: A61G7/10
Filed: 1996-01-09
Abstract: An invalid lifting device comprises two support members 110, 111 or (10 and 11, Figs. 3 and 4), each having at least one vertical or substantially vertical leg 112, 115 (12, 13, 15, 16) and a cross arm 114, 117 (14, 17) which connects the legs adjacent their upper ends. The cross arms 114, 117 (14, 17) are pivoted relative to one another about a vertical axis so that the support members 110, 111 (10, 11) can be angularly displaced by drive means 118 (18) for storage purposes. The lifting device can pass through a doorway of standard width whilst carrying a patient and is also able to straddle a standard bed when in an extended condition. Sensor means are supplied as a safety feature to prevent excessive angular displacement of the support members when carrying a load. A hoist is provided comprising a power operated winch 127 (26), a flexible elongate tape 128 (28), and a sling support 130 (30) connected to the free end of the tape 128 (28) for raising or lowering the patient. Each leg 112, 115 (12, 13, 15, 16) has a wheel or castor 133 (33) at its lower end for movement and braking means are provided in the form of extendable feet for engagement with the floor.
Patent GB-2297893-A (GB)
Title: Attaching insoles
Inventor: PRAHL JAN
IPC: A43B17/18
Filed: 1996-02-08
Abstract: An insole (10) to be secured against displacement inside a shoe has on its flat underside, a Velcro (R.T.M.) fastener comprised of two Velcro portions (11,12), in which one of the two Velcro portions (11,12) is rigidly connected to the insole (10) and the other portion (12) is provided with an adhesive (14) for the connection with the shoe. The insole may be for shock absorbtion, leg length compensation or relief of calcaneal spur.
Patent GB-2301699-A (GB)
Title: Method and apparatus for power generation
Inventor: ANDO YUJI
IPC: H01M14/00
Filed: 1996-03-14
Abstract: Thermal decomposition of a reactant XY proceeds thermally on a negative catalytic electrode 1 to form products X and Y. The product Y is a cellular reaction product which seperates into ions Y+ and electrons e- on the catalytic electrode. The ions Y+ having moved through a solid electrolyte 3 the electrons e- having passed through an external resistor 6, and the product X formed on the catalytic electrode 1 reacts on a positive catalytic electrode 2 reproducing the reactant XY. The positive electrode 2 is heated e.g. by solar heating to promote reproduction of the reactant XY.
Patent GB-2298864-A (GB)
Title: Method for oligomerizing an alpha-olefin
Inventor: TANAKA EIJI
IPC: C07C2/30
Filed: 1993-09-13
Abstract: The invention provides a method for oligomerizing an * small Greek alpha *olefin by means of a catalyst system comprising a chromium compound having at least one chromium-pyrrolyl bond and an alkylaluminum compound, wherein the alkylaluminum compound is used in an amount of at least 20 mmol per g of the chromium compound. Preferably, the oligomerization is carried out in a saturated hydrocarbon solvent in the presence of hydrogen.
Patent GB-2312010-A (GB)
Title: Rendering resembling brickwork
Inventor: MOORE JOHN PHILIP
IPC: E04F13/02
Filed: 1996-04-10
Abstract: A method of rendering a surface such as an external wall of a building (S) comprising applying a first layer (10) of cementitious rendering material to the surface (S), applying a second layer (12) of further cementitious rendering material over the said first layer (10) and cutting through the second layer (12) to reveal the first layer (10) through the second layer (12) according to a desired pattern, such that the external appearance of the rendering resembles brickwork. A base layer may be applied to the surface and allowed to set prior to application of the first and second layers (10,12).
Patent GB-2304930-A (GB)
Title: Automatic picture changing frame assembly
Inventor: CHAN TONG
IPC: G09F11/15
Filed: 1996-08-29
Abstract: An electronic picture system which consists of a casing 10 including a continuous belt 36 having provided thereon a series of photos or posters 49. An electronic system 20 is provided which operates a motor to sequentially move individual photos or posters into a viewing area defined by the casing. A timer may periodically rotate the belt to expose a different picture in the viewing area. A sensing mechanism 54 may stop the movement of the belt after a picture is located in position within the viewing area. On-off switch 22, manual switch 24 and batteries 50 are shown. The system may be arranged to move the pictures vertically instead of horizontally.
Patent GB-2318002-A (GB)
Title: Earth leakage current sensor
Inventor: WEBSTER MELVYN
IPC: H02H3/10
Filed: 1996-10-02
Abstract: A programmable sensing circuit 51 has a current imbalance sensor coil 55 and a line current sensor 59, each coupled to a microprocessor 58 by an analogue-to-digital converter 57,61. An actuator 62 opens switches 63, 64 in response to a signal from the microprocessor 58, which is connected to memories 65, 66. The circuit 51 may respond to changes in the level of leakage current independently of absolute value, or may trip only when an increase in leakage current does not coincide with an increase in load current, so that nuisance tripping is reduced.
Patent GB-2319603-A (GB)
Title: Temperature sensing device using a fibre optic cable and heat shrinkable material
Inventor: MCNAB JOHN CROSS
IPC: G01K5/52
Filed: 1996-11-22
Abstract: A temperature sensing device comprises a fibre optic cable 1 formed into a loop inside a heat shrinkable material 2 in its unshrunk state. When the temperature exceeds the activation temperature of the heat shrinkable material, the material shrinks and forces the fibre to pass below its critical bend radius, and the change in light transmission is detected. Different temperatures along the same fibre may be detected using different activation temperatures. The sensing device may be used in a fire monitoring system requiring reliable and intrinsically safe operation in a noisy or high voltage electrical installation.
Patent GB-2309723-A (GB)
Title: Downhole valve apparatus
Inventor: FRENCH CLIVE JOHN
IPC: E21B34/00
Filed: 1997-02-03
Abstract: Downhole apparatus in the form of a valve 140 comprises a body defining a bore 168 with a curved flapper closure member 142 positioned in the bore. First and second retaining members 144,146 are positioned on respective sides of the flapper 142 for retaining the flapper in a closed position and to hold pressure from both sides. One of the retaining members 144 is retractable to permit opening of the valve flapper 142. The flapper 142 may be locked closed by locking the retractable retaining member 144 in position. On release of the member 144, application of fluid pressure to portions of the member 144 will retract the member 144. In another embodiment the retractable retaining member may be used to lock the valve flapper in open position.
Patent GB-2323957-A (GB)
Title: Active matrix drive circuits
Inventor: CAIRNS GRAHAM ANDREW
IPC: G09G3/36
Filed: 1997-04-04
Abstract: A data line driver circuit for an active matrix liquid crystal display comprises a shift register 41 composed of a chain of DFF's 42, and a bank 43 of data line drivers 44. Furthermore the circuit 40 incorporates a bank 45 of combinational or sequential logic blocks 46 each of which is locally associated with a respective one of the DFF's 42 and may contain pattern detection logic. Each local logic block 46 receives signals from the outputs of one or more of the local DFF's 42 and generates one or more local control signals for the associated data line driver 44. The pattern detection logic may also generate one or more global control signals. The circuit 40 therefore operates as a distributed controller which generates control signals locally, rather than such signals being generated by a global counter and/or combinational logic circuits. Such a circuit offers the major advantage of a reduction in implementation area brought about by minimisation of system complexity, and is particularly advantageous when used for a drive circuit which is integrated on the display substrate in the form of polysilicon thin-film transistors.
Patent GB-2324952-A (GB)
Title: Low fat potato crisps
Inventor: ROLSTON ROBERT MITCHELL
IPC: A23L19/00
Filed: 1997-04-30
Abstract: A process for the manufacture of a vegetable snack product comprises cutting a vegetable to obtain vegetable slices; applying to the vegetable slices an edible oil, to obtain oiled slices; and baking the oiled slices to obtain baked slices having a moisture content of not more than 3% by weight based on the total weight of the baked slices; said baking comprising a step in which the oiled slices are exposed to radiation of near-IR wavelength. The vegetable snack product so obtained has a relatively low fat content, whilst having good textural properties.
Patent GB-2326088-A (GB)
Title: inflatable bed sides
Inventor: WILKINSON MICHAEL ANTHONY
IPC: A47C21/08
Filed: 1997-06-12
Abstract: Inflatable tube(s) or compartments are fitted to the head, foot and sides of a bed so as to be upstanding around the sides of the bed. The inflatable tube(s) or compartments protect the occupant of the bed from injury, from falling out of bed or from being stuck within the side rails.