baber/WOPTO huggingface dataset:
Patent GB-2233923-A (GB)
Title: Repairing defective metal workpiece
Inventor: DUNKERTON SUSAN BERNADETTE
IPC: B23P6/04
Filed: 1990-04-27
Abstract: A method of repairing a defective metal workpiece such as metal plate comprises removing metal from the defective region of the workpiece and friction welding a compatible metal plug 4 in place. The plug 4 or the bore may be tapered to allow the weld to develop progressively through the workpiece. <IMAGE>
Patent GB-2247411-A (GB)
Title: Producing foam
Inventor: WILD KENNETH
IPC: B01F3/04
Filed: 1990-06-26
Abstract: Apparatus for producing a foamed, for example, flurocarbon protection medium for application to fabric surfaces, comprising a bead column (22) to which a controlled gas/liquid mixture is forced under pressure, via an injector (19), from a pressurised gas supply (10, 11) and a liquid reservoir (16) containing a foamable liquid. The tortuous path matrix provided by the bead column, (22) produces at its upper end a fine textured foam which may be applied in sheet-like form to the fabric surface to be treated via an applicator head (25) having a narrow slot opening (32). <IMAGE>
Patent GB-2244894-A (GB)
Title: Computer graphics
Inventor: MARTIN PHILIP DAVID
IPC: G06F3/0484
Filed: 1990-06-27
Abstract: A method of electronically generating a line which comprises:   a) storing signals representative of variation in a line produced by an implement of a type in which the produced line varies along the line; and b) generating said line by utilizing said stored signals in succession so that the generated line simulates said variation.   <IMAGE>
Patent GB-2261737-A (GB)
Title: Scanning ultra violet exposure unit
Inventor: MAJOR ADAM PETER
IPC: G03B27/20
Filed: 1990-08-22
Abstract: The present invention uses ultra violet tubes instead of a single point light source. The tubes are scanned across the exposure area on a flat bed and at a very close distance. This reduction of distance between the light source and the exposure area is enabled by use of a linearising screen which is placed between the tubes and the exposure area. This linearising screen thus simulates the angle at which the light hits the exposure area on a conventional exposure machine with the advantage of removing the great distance between the light source and the exposure area. <IMAGE>
Patent GB-2236750-A (GB)
Title: Ceramic material and insulating coating made thereof
Inventor: VINE RAYMOND W
IPC: C04B35/50
Filed: 1990-09-03
Abstract: A yttria stengthened ceria material is disclosed. The addition of a small amount of yttria (for example 0.5%) significantly strengthens the ceria. The yttria modified ceria is useful as a thermal barrier coating, being applied e.g. by vapour deposition to a superalloy after the application of a bond coat to the superalloy. <IMAGE>
Patent GB-2240816-A (GB)
Title: Actuator for dispensing apparatus for metered quantities of pressurised fluid
Inventor: HOWLETT DAVID JOHN
IPC: B65D83/14
Filed: 1991-01-16
Abstract: An actuator (11) for a container (3) having a valve stem (9) through which fluid is dispensed when the valve stem is depressed is co-operable with the valve stem to provide depression of the valve stem and defines a dispensing flowpath for fluid dispensed through the valve stem. The actuator comprises inner and outer nested components (13, 14) defining a break-up nozzle (16) for atomising dispensed fluid, which nozzle includes swirl inducing ducts (18) defined by groove formations formed in the outer nested component. The inner nested component (13) including a first tubular portion defining a bore receiving the valve stem and cooperates with the outer nested component (14) to provide the dispensing flowpath (17, 15) communicating between the bore and the nozzle. The actuator produces an atomised spray of fluid without the use of a separate nozzle insert and is therefore suited for nasal inhalation. <IMAGE>
Patent GB-2243441-A (GB)
Title: Pressure waveform monitor
Inventor: DRZEWIECKI GARY M
IPC: A61B5/0215
Filed: 1991-03-25
Abstract: A pressure waveform monitor for noninvasively monitoring the pressure waveform in an underlying vessel (14) such as an artery, has at least one continuous, relatively thin and narrow diaphragm (12) to be placed on the tissue (24) overlying the vessel of interest. The diaphragm is longer than the diameter of the vessel for purposely monitoring pressure in the tissue adjacent the vessel of interest. The tonometer also comprises deformation sensor means (18, 20) for measuring deformation of the diaphragm both over the vessel and adjacent the vessel, and signal processing means (30) for correcting the waveform monitored by the part of the diaphragm over the vessel using the waveform sensed from adjacent tissue. <IMAGE>
Patent GB-2255168-A (GB)
Title: Improvements in street lighting
Inventor: HARDING GUY ADRIAN
IPC: F21S8/08
Filed: 1991-04-26
Abstract: A light fitting, primarily intended for a street lamp, comprises a base unit (3) having a flange (4) which is adapted to be fitted into a transparent or translucent cover (1) with the flange (4) mating against portions of the cover (1) surrounding an aperture through which the base unit (3) projects into the interior of the cover. A U-shaped bracket (5) which serves as a gear tray is secured to the base unit (3) and serves as a support for stays (6, 7) on which a substantially hemispherical reflector (8) is mounted in a substantially horizontal disposition. An arc tube is mounted in a substantially horizontal position within the reflector and the arrangement is such that the reflector serves to direct the majority of the light from the arc tube in a downwards direction. A small amount of carefully controlled light may be allowed to spill upwards to illuminate the upper part of the cover for aesthetic considerations. <IMAGE>
Patent GB-2245244-A (GB)
Title: Labels and their manufacture
Inventor: WEDEKIND OSCAR VON
IPC: G09F3/02
Filed: 1991-06-18
Abstract: A label comprises a label portion (1) and a removable self-copying checking portion (8). Label portion (1) comprises a main portion (3) and a secondary portion (4) provided with a silicone layer (5) and an adhesive layer (18). The main portion (3) is divided into a plurality of identification fields (21-25) separated by perforations (20). The checking portion (8) is adhered (7) to the label portion (1) and has an adhesive layer (19) and a silicone layer (15) which co-operate with layers (5) and (18) of the label portion (1). The checking portion (8) is also divided into separate portions (26-28). Silicone layer (15) of the checking portion (8) has recesses (16) which expose corresponding regions of the adhesive layer (18) of the secondary portion (4) by which the secondary portion (4) is detachably adhered to the main portion (3) after folding about line 2. Initially portions (1) and (8) have guide perforations (6, 9, figs 1, 4, not shown) for aligning these portions with one another. <IMAGE>
Patent GB-2262253-A (GB)
Title: Laser drilling of reverse tapered holes
Inventor: TURNER BRIAN JOHN
IPC: B23K26/38
Filed: 1991-12-02
Abstract: A method for drilling a series of reverse tapered holes through a surface by means of a laser beam involves projecting the laser beam (18) through a fixed spherical lens (10) located above the surface (9) focusing the laser beam onto the surface such that the taper angle of the beam will substantially conform to the required taper of the hole. The focused beam is rotated about the polar axis of the fixed spherical lens (10) whereby a continuous directional change of laser beam energy is effected through the material (9) after passing through the focal point at the outer surface to give a resultant divergent hole extending therethrough. The apparatus includes a high speed rotating optical assembly (8) positioned above the structural skin (9) with the fixed spherical lens (10) positioned therebetween. <IMAGE>
Patent GB-918079-A (GB)
IPC: G01F1/80
Abstract: 918,079. Measuring electrically. GENERAL ELECTRIC CO. March 17, 1960 [March 19, 1959], No. 9440/60. Addition to 889,929. Class 40 (1). [Also in Group XXXV] In a flowmeter of the type described inthe parent Specification, i.e. the type in which an impeller accelerates the fluid to a uniform speed and then the power lost in decelerating the fluid, corrected in accordance with the speed of the impeller, is used as an indication of mass rate of flow, the correction is applied to the indicator shaft by means of an electromagnetic torque generator fed with a signal proportional to the deviation of the impeller speed from the nominal. In a preferred embodiment a synchronous motor drives an impeller to impart angular momentum to the fluid which momentum is recovered in deflecting a turbine wheel against a spring, the turbine being coupled to the rotor of the transmitter of a selsyn link so that the receiver output shaft takes up a position in accordance with the deflection of the turbine and hence in accordance with the mass rate of flow, assuming the impeller speed is constant.. The selsyn receiver output shaft 25, Fig. 3, is coupled via spring 24 to indicator shaft 9 and torque element 8. Torque element 8 comprises an induction disc 26, e.g. of aluminium, attached to the indicator and moving between the poles of .electromagnet 31. The electromagnet is energized with a reference voltage on coil 27, fed from the supply via capacitor 45, and a control voltage, controlling the torque developed, in coil 28. The control voltage being the unbalance voltage of a Wien bridge fed with the same supply as the impeller drive synchronous motor and tuned to the nominal supply frequency. In order that the torque developed shall vary with the rate of flow the induction disc is shaped to have a varying area within the influence of the electromagnet as the indicator shaft rotates. An alternative form of induction torque generator is described having 3 magnetic circuits, Fig. 5 (not shown). Also described is a permanent magnet torque generator in which a permanent magnet 50, Fig. 7, is attached to the indicator shaft 12, its poles encompassing a toroidal core 53 wound with a graduated coil 52 so that the torque on the magnet and hence shaft 12 varies with the shaft position and coil energization. A demodulator circuit to derive the D.C. drive for this P.M. torque element from the A.C. output of the Wien bridge is also described, Fig. 9, not shown.
Patent GB-2263371-A (GB)
Title: Self routing optical switch
Inventor: EVERARD JEREMY KENNETH ARTHUR
IPC: H04L12/933
Filed: 1992-01-20
Abstract: A self routing optical switch consists of a non linear material 1 surrounded by an array of reflecting or semi-reflecting mirrors or surfaces 3, 4, or 5. These reflecting surfaces reflect some light from the non linear material back to the non linear material. An optical signal beam or optical data packet incident on the non linear material is routed to a selected reflecting surface by including the destination address in the optical signal in the form of the autocorrelation function of the optical signal. The destination is selected by arranging for the round trip propagation time between the non linear material and the semi-reflecting surface to be equal to the time delay between any two peaks in the autocorrelation function. The address and hence autocorrelation function can be changed by varying any combination of the amplitude. phase, frequency or polarisation of the optical signal. This routing information could be in a header or in the data itself and could be removed afterwards if required. This system has the capability to route most of the input signal down the wanted route. <IMAGE>
Patent GB-2253807-A (GB)
Title: A tool head for the extrusion of rigid or flexible tubular preforms of thermally plasticised plastic material
Inventor: RECKMANN BERNHARD
IPC: B29C48/09
Filed: 1992-02-20
Abstract: A tool head (1) for the extrusion of rigid or flexible tubular preforms of thermally plasticised plastic material has a core-shaped inner tool (2) and a surrounding outer tool (3) arranged to form an annular extrusion gap (4), through which the thermally plasticised plastic material flows. The annular extrusion gap (4) has an annular gap nozzle opening (5) at its outlet side and a feeding device (6) for the incoming thermally plasticised plastic material on its inlet side and a rearrangement device (7) disposed between the feeding device (6) and the annular extrusion gap (4) having inlet holes (8) and outlet holes (9) for the thermally plasticised plastic material distributed over its periphery, holes (9) being offset with respect to holes (8) and connected thereto via rearrangement channels (10). <IMAGE>
Patent GB-2253927-A (GB)
Title: Improvements in or relating to gas-heated hot water boilers
Inventor: IRONSIDE RICHARD
IPC: F23N1/02
Filed: 1992-03-12
Abstract: In a gas-heated hot water boiler a rotor 18 is mounted in the inlet air flow, or a rotor 19 is mounted in a flue 17, so as to be rotated by the flow of air or exhaust gases at a speed which is dependent on the velocity of flow. The rotor is coupled to a Hall Effect device 20, which produces a signal dependent on the speed of the rotor, and this signal is used to control (22) the supply of gas to burners 12, for example so that the gas flow is at all times proportional to the volume flow of air into the combustion chamber. The gas flow control is therefore automatically set to achieve the optimum gas/air mixture at all times. <IMAGE>
Patent GB-2264056-A (GB)
Title: Frame for supporting canvas
Inventor: RICHARDSON KEITH TIMOTHY NORTH
IPC: B44D3/18
Filed: 1992-07-07
Abstract: A frame 18 for supporting a canvas is made from at least one moulding 11 having a groove 12 extending therealong and at least one plate 14 insertable in the groove. The frame is laid on a canvas which is secured to the moulding and the plate is gently tapped in the direction of arrow A with a hammer in order to tension the canvas. <IMAGE>
Patent GB-2269766-A (GB)
Title: Multiple spray pattern nozzle assembly
Inventor: BERFIELD ROBERT C
IPC: B05B1/16
Filed: 1992-12-29
Abstract: A spray nozzle is equipped with a multiapertured plate for generating high pressure spray patterns, the plate is made of a material which can be stamped in a die to a tolerance of within .0005 inches.
Patent GB-2274206-A (GB)
Title: Aerodynamic circularly-polarised antenna
Inventor: LEE BRIAN SHEPHERD
IPC: H01Q13/06
Filed: 1993-01-09
Abstract: A wide-band antenna suitable for mounting on an asymmetric surface includes a waveguide section (10) of circular cross-section closed at one end. The diameter of the waveguide section (10) is appropriate to the wavelength of the antenna operating frequency. The open end (11) of the waveguide section is positioned on the asymmetric surface (12) and is covered by a radome (13) of a material substantially transparent to radiation and which converts the surface (12) to a symmetrical profile. A probe (14) extends into the waveguide section (10) near to its closed end in a direction perpendicular to the longitudinal axis of the waveguide section (10) and a quarter-wave plate (16) is positioned in the waveguide section (10) across a diameter of the section at an angle relative to the probe (14) such that the antenna radiates, or is responsive to, circularly-polarised radiation. Other disclosures are: using one antenna system for receiving and another for transmitting with a separating barrier preventing interaction, various surface profiles and various angular directions for the waveguide(s). <IMAGE>
Patent GB-2279447-A (GB)
Title: Plasma waste disposal
Inventor: CHANG KUO-CHING
IPC: F23J15/00
Filed: 1993-06-29
Abstract: A waste processing means includes a high-temperature plasma heating means enclosed in a chamber having a waste transporting means for transporting the hazardous wastes to the plasma heating means for converting the hazardous wastes to a gaseous outflow and an induction heating plasma means for receiving a plasma gas and generating an induction heating plasma for further destructing and decomposing the gaseous outflow into a plurality of simple products suitable for final safe disposal. <IMAGE>
Patent GB-2279635-A (GB)
Title: Winch device
Inventor: HSU SIMON
IPC: B66D1/38
Filed: 1993-07-01
Abstract: A winch device includes a winch (13 - 16) attachable to the wheel disc (5) of the driven wheel of a vehicle and turned by the wheel to take up a rope or cable (18) and a guard board (2) detachably fastened, as by suction mounts (22) to the vehicle to keep the rope or cable away from the body of the vehicle. An anchor board and an anchor grapnel, (Figs 4, 5 not shown) may be used alternatively for fastening the rope or cable to the ground, for example to help the vehicle to escape from a stuck position. <IMAGE>
Patent GB-2268999-A (GB)
Title: Rotary valve assembly
Inventor: STONE SIMON RICHARD
IPC: F16K11/087
Filed: 1993-07-07
Abstract: A rotary valve assembly, particularly for use in mining equipment, comprises a valve body 10 and a valve member 21 rotatable in the valve body about an axis 22. The valve member has an annular, part spherical surface extending about the axis 22, first, second, third and fourth angularly spaced ports 32, 33, 34 and 35 in the part spherical surface and a fifth port 36, 37 in the valve member. The fifth port is axially spaced from the first to fourth ports. The first and second ports are connected by first passage means 38 in the valve member and the third, fourth and fifth ports are connected by second passage means 39, 43, 44 in the valve member. The valve body 10 has four angularly spaced annular valve seats 27, 29 which co-operate with the valve member and which, according to the angular position of the valve member relative to the valve body, sealingly communicate each of at least three of the first to fourth ports with one of at least three ports 15, 16 and 17 in the valve body, the fifth port in the valve member being in permanent communication with a further port 18 in the valve body. In addition to being openable to switch the direction of flow to and from a hydraulic ram 50, the valve may be set to connect both sides of the ram to supply P (Fig. 6) so that the ram will extend more slowly, or to connect both sides to tank R. <IMAGE>
Patent GB-2280369-A (GB)
Title: Testing a fire sprinkling system
Inventor: CAIN BERNARD
IPC: A62C35/15
Filed: 1993-07-29
Abstract: A fire sprinkler system with at least one sprinkler is tested by simulating the operation of a sprinkler and checking the response of an element of the system in consequence of such simulation. Operation is typically simulated by operating a valve to release water from a pipe leading to a sprinkler. The valve is preferably electrically operable via a control circuit which is responsive to a signal sent from a remote location. Element checked may be e.g. electrical power supply to system, mains water pressure, water flow-rate etc.
Patent GB-2269894-A (GB)
Title: Drilling dust collector
Inventor: PIRIE BRIAN
IPC: B25D17/14
Filed: 1993-08-19
Abstract: A drilling dust collector includes a dust retention container 2 or 2A having a frontal collection opening for drilling dust and shavings and attachable to a drill neck by a fastening collar 10, which may be lined with a sponge-like material insert 10A. <IMAGE>
Patent GB-2281224-A (GB)
Title: Multi-phase catalytic reactor
Inventor: LORENTZEN GEIR B
IPC: B01J8/22
Filed: 1993-08-24
Abstract: A multi-phase catalytic reactor 11 is disclosed in which a liquid product is separated from a slurry phase containing a finely divided solid catalyst in a liquid medium. The apparatus includes a vessel 11 which contains a number of vertical reaction tubes 13, arranged to accommodate the slurry phase. Each tube 13 has a portion of its wall made as a filter member 21 in contact with the slurry phase within the tube. The filter members thus define a filtrate zone which is separated from the slurry phase. Gaseous reactants are introduced via distributor 19 into the slurry phase within the tubes and a heat exchange medium is circulated around the outside of the tubes from inlet 20 to outlet 29. The filtrate passing through filters 21 collects on top of tube-sheet 14 and is conducted off through level-governing outlet 26. Gaseous products leave through exit 25. Sleeves (34; Fig. 3) may surround the filters 21 and the filtrate zone for each tube may be enclosed by an outer housing (44; Fig. 4). <IMAGE>
Patent GB-2286646-A (GB)
Title: Apparatus for stopping a leak in a pipe
Inventor: ELKINS ANTHONY BRIAN
IPC: F16L55/172
Filed: 1994-02-18
Abstract: Apparatus (2) for stopping a leak (4) in a pipe (6), which apparatus (2) comprises a tubular member (8) which is made of a hard flexible material, a longitudinal slot (10) which extends the length of the tubular member (8) and which enables the tubular member (8) to be opened and fitted over the pipe (6) at the position of the leak (4), a resilient lining material (12) which is secured to an inner surface (14) of the tubular member (8) and which forms a lining for the tubular member (8), at least a pair of lugs (16, 18) formed as an integral part of the tubular member (8) and positioned one each at opposing edges (20) of the tubular member (8) defining the slot (10), and screw threaded fastener means (22) for passing through apertures in the lugs (16, 18) for clamping the tubular member (8) around the pipe (6) in order to stop the leak (4). <IMAGE>
Patent GB-2286791-A (GB)
Title: Nail removing tool
Inventor: WALLETT GERALD
IPC: B25C11/00
Filed: 1994-02-26
Abstract: A nail removing tool comprises a base portion 1 and a handle portion 2 which are pivotally connected about a pivot 3. The base portion is provided with slots 6, 7 which limit the extent to which the handle pivots about the base. A claw portion 5 is located on one side of the base portion and enables the shaft and head of a nail, screw, rivet or the like to be gripped. A lever force applied to the handle allows the nail to be removed (Fig 3) with a foot portion bearing against a surface of the material in which the nail is embedded. The base portion may function as the head of a spanner such as a box spanner used when working with scaffolding. <IMAGE>
Patent GB-2283522-A (GB)
Title: Method and apparatus for oil or gas well cleaning
Inventor: HASHEMI REZA
IPC: E21B37/00
Filed: 1994-06-08
Abstract: An oil or gas well cleaning method includes inserting tubing, such as a coiled tubing (60), into a well bore (10), for example, into a production pipe (30) in a well bore (10). A cleaning fluid containing a flocculant is passes into the well and the flocculant in the cleaning fluid is mixed with solid particles (11) in the well bore (10) to flocculate the particles. The cleaning fluid and the flocculated particles are then removed from the well. In one embodiment, the cleaning fluid containing the flocculant is discharged from the lower end of the tubing (60) into the well, and the cleaning fluid with the flocculated particles is removed from the well via the production pipe (30). Alternatively, the cleaning fluid containing the flocculant may be introduced into the well through the production pipe (30), and the cleaning fluid with the flocculated particles may be removed via the tubing (60). The flocculant may also serve as a friction reducer to reduce the friction between the cleaning fluid, the solids, the production pipe (30), and the tubing (60). <IMAGE>