baber/WOPTO huggingface dataset:
Patent GB-2188899-A (GB)
Title: A tensioner for tensioning a traction cable
Inventor: CONVERT BRUNO
IPC: E21B19/09
Filed: 1987-04-07
Abstract: A tensioner for a cable connected between an oil well riser and a sea vessel includes an actuator (12) comprising a cylinder (13), a piston (14) dividing the cylinder into first and second chambers (15, 16), and a piston rod (17) passing through the first chamber (15) and the corresponding end (18) of the cylinder, the free end of the piston rod and the end (21) of the cylinder opposite to the end through which the piston rod passes each being provided with at least one sheave (19, 20). The second chamber (16) of the cylinder is fed with hydraulic liquid from a pressure accumulator system (23, 24) via a duct (28, 29) including a first controlled valve (30) having a first non-return valve (31) connected in parallel therewith to prevent flow from said second chamber towards said pressure accumulator system. The riser includes a weak link (4), Fig. 2 (not shown), and the other end of said cable is fixed to a fixed point (22) of the vessel (7) after being reeved around said sheaves provided on said actuator. The tensioner further includes a very high pressure accumulator device (32) which is connected to said second chamber (16) of the actuator via a second controlled valve (35), with the pressure in said accumulator device being greater than the pressure required to break said weak link. In an emergency the valve (35) is actuated to pressurize the second chamber (16) to cause breakage of the weak link. <IMAGE>
Patent GB-2196974-A (GB)
Title: Bandages
Inventor: HICKS JOHN KENNETH
IPC: A61L15/12
Filed: 1987-10-14
Abstract: Water hardenable splinting bandages comprising a flexible fabric carrying a water curable isocyanate terminated prepolymer and a catalyst therefor wherein the prepolymer is in admixture with an organic acid anhydride to inhibit premature setting of the bandage on storage, water curable isocyanate terminated prepolymers and water hardenable compositions for use in the bandages and methods for their preparation.
Patent GB-2213038-A (GB)
Title: Vapour release device
Inventor: AKIBA YOSUKE
IPC: A23L3/00
Filed: 1988-01-06
Abstract: Device for controlled release of a vapour from a liquid, in particular for storing and dispersing food preservatives in a closed food container. The apparatus includes an absorbent strip sandwiched between two layers of non-woven fabric to form a non-woven fabric combination in a lattice network. This combination is then placed between two layers of plastic film which is then placed between plastic cover layers. The absorbent is impregnated with the said liquid, for example a food preservative. The layers of plastic film are advantageously impregnated with a second liquid providing a vapour, for example a food odour. The plastic cover layers are optionally sealed along their edges allowing the absorbent's vapour emission rate to be quantitatively controlled and regulated by means of prearranged perforations and/or selective opening of the sides and faces of the plastic cover layers.
Patent GB-2214641-A (GB)
Title: Apparatus for use in crack detection
Inventor: ROBINSON ALBERT NORMAN
IPC: G01N27/84
Filed: 1988-01-26
Abstract: Magnetic particle crack detection inspection of offshore structures or pipelines is conducted by manual manipulation single handedly by a diver of an electromagnet having legs 22, 26, 28; 24, 30, 32 protruding from a housing 10. The electromagnet legs engage the member under test and impose a magnetic field on the member. Magnetic ink is dispersed from nozzles beneath the section 34 upon depression of a push button 43, which controls a valve through which ink passes under pressure from an underwater supply connected to the housing at 42. Ultra-violet lamps in the section 34 shine through window 36 to cause the ink particles in the cracks to fluoresce. Electrical connections to the electromagnet coil in the section 12 are made at 14, 16 and to the lamps at 44. The section 12 forms a handle enabling the button 43 to be operated by a thumb. <IMAGE>
Patent GB-2217205-A (GB)
Title: Diaper with high absorbency portion
Inventor: FUISZ RICHARD C
IPC: A61F13/15
Filed: 1988-04-12
Abstract: A disposable diaper 10 contains an absorbent layer 12 in which an island of highly absorbent material 16 is surrounded by an expanse of lesser absorbent material 17 that extends throughout the remainder of the diaper. A liquid impermeable panel 18 or coated region (30 or 40) diverts urine from the lesser absorbant material to the island material. <IMAGE>
Patent GB-2223790-A (GB)
Title: Packing pieces
Inventor: WALLER BRIAN PAUL
IPC: F16B43/00
Filed: 1988-10-12
Abstract: Packing pieces for insertion between vertical studs and an underlying uneven brick wall have a keyhole slot extending to the periphery of the packing piece to enable them to be slipped behind the stud after the mail or screw hole is driven through it. The pieces may have different thicknesses. <IMAGE>
Patent GB-2218215-A (GB)
Title: Detecting the boundary between laminar and turbulent flow over a surface using cholesteric liquid crystal material
Inventor: BONNETT P
IPC: G01M9/06
Filed: 1989-02-10
Abstract: Shear stress in a fluid flow is measured by coating the surface of a body with a cholesteric liquid crystal material. The material is caused to adopt a focal conic texture state. When a fluid flow induced shear stress above a predetermined limit is applied the material changes to a Grandjean texture. This Grandjean texture is of highly iridescent colour in contrast with the opaque appearance of the focal conic texture. The observed surface pattern indicates a boundary between e.g. laminar and turbulent flow. Varying the material composition, time period of applied shear flow, and temperature, varies the boundary between the laminar and turbulent flow. An amount of particulate material, e.g. silica particles with diameters in the range 7-50 nm, may be incorporated in amounts of 1-30% or more into the cholesteric liquid crystal material to render the changes reversible. The method is used on aircraft wings.
Patent GB-2230760-A (GB)
Title: Sheet feeding mechanism
Inventor: WATKINS STEPHEN CHRISTOPHER
IPC: B65H3/06
Filed: 1989-04-11
Abstract: A sheet feeding mechanism comprises a base (6) comprising spaced base parts (6a, 6b) which are inclined at an angle, and side walls (8) into which a stack of sheet material such as paper may be placed. Mounted adjacent to an opening (10) defined between the base parts (6a and 6b) is a feeding device comprising a pair of spaced rollers (12, 14) having outer surfaces of rubber, the rollers being so located in the opening that the lowermost sheet in the stack is urged against the circumferential surface of the rollers, and thus when the rollers rotate the lowermost sheet is 'pinched' between the rollers, and is fed through the nip thereof, being drawn through the opening into a folded condition. The feeding mechanism may be used in conjunction with conventional shredding mechanism, into the nip of which the rollers feed sheet material. <IMAGE>
Patent GB-2218464-A (GB)
Title: Line jamming apparatus
Inventor: MACKENZIE KENNETH LAWRENCE
IPC: F16G11/04
Filed: 1989-05-10
Abstract: The invention relates to the provision of line jamming apparatus wherein at least one roller 3 moves convergently and divergently on a pathway relative to a line feeding out of and back into a channel is in use convergently moveable to jam the line so preventing movement out of the channel and divergently moveable so to unjam the line, a size of the channel being relatively restricted by convergent movement of the runner means and relatively enlarged by divergent movement of the runner means. The roller may be resiliently biassed in direction 6 and the apparatus provided with an unlocking lever to urge the roller in direction 7. <IMAGE>
Patent GB-2222827-A (GB)
Title: Chlorination of sugars
Inventor: KHAN RIAZ AHMED
IPC: C07H13/04
Filed: 1989-09-12
Abstract: A process for the chlorination of sucrose or a derivative thereof, comprises reaction of the sucrose or derivative thereof with thionyl chloride and a nitrogen base at a ratio of about 1 molar equivalent (ME) of thionyl chloride and about 1 ME of base for every ME of free hydroxyl, in a non-reactive moderately polar solvent. The process is particularly suitable for the preparation of sucralose.
Patent GB-2238128-A (GB)
Title: A roll independent inclinometer
Inventor: DANIELS BRIAN WILLIAM
IPC: G01C9/06
Filed: 1989-11-10
Abstract: A roll independent inclinometer for use in a towed sonar array comprises on outer conducting cylinder (32) and at least one inner conductor (31) having circular symmetry, the cylinder and conductor defining between them a fluid-tight envelope (35) symmetrical about the cylinder axis, there being a fluid (preferably a liquid) partially filling the envelope and in contact with the inner and outer conductors, and electrical circuitry connected to respective terminals (A, B, C) on the inner (31) and outer (32) conductors and responsive to the inclination of the fluid within the envelope. The device may work by change of capacitance using a dielectric fluid, or conductance. <IMAGE>
Patent GB-2226515-A (GB)
Title: Sheet bending press
Inventor: CATTI ALBERTO AIMONE
IPC: B21D5/02
Filed: 1989-12-28
Abstract: The press includes a frame which carries a pair of tool-holding beams one carrying a punch and the other a bending die. At least one of the beams is movable towards the opposing beam to perform a working stroke, and in the opposite direction. The movable beam 22 is divided, at least effectively, into a number n of sections, n being equal to or greater than 2. The means for moving the beam are constituted by n + 1 servomotor units 40,42 each of which is provided with a support 12,14 coupled to the movable beam and is adapted to exert a force, through this support, for thrusting the movable beam towards the opposite beam 24 during the working stroke. Two servomotor units 40 are end units whose supports 12 are coupled to respective ends of the movable beam 22. Each other remaining servomotor 42 is an intermediate unit whose support 14 is situated in the transition zone between one section and another. If P is the total force thrusting the movable beam towards the opposing beam, each end unit is adapted to exert a thrust force of P/2(n-1) on the movable beam through its support. A position transducer 64 is associated with each support and the servomotor units are subject to a common control processor E having inputs connected to the transducers and outputs connected to the servomotor units. The processor E is adapted to control each unit so that all the units impart identical movements and speeds of movement of their supports and to the movable beam. 
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Patent GB-2239796-A (GB)
Title: Sheet material for artificial plants
Inventor: LUK KWAI LEUNG
IPC: A41G1/00
Filed: 1990-01-12
Abstract: Slits 3 extend transversely between longitudinal edge portions 2a, 2b of a PVC sheet 1 to define two interdigitating rows of triangular regions 4a, 4b, each row having its apexes 6a (6b) integral with one edge portion 2a (2b) and its bases 7a (7b) integral with the other edge portion 2b (2a). Crease lines 8a (8b) extend along the respective triangular regions 4a (4b). When the apexes are separated, two pieces of bladed sheet material are formed. <IMAGE>
Patent GB-2229154-A (GB)
Title: A hinge spring for an automobile sun visor
Inventor: GABAS CARLOS
IPC: B60J3/02
Filed: 1990-03-19
Abstract: A hinge spring for the hinge-pin of an automobile sun visor comprises a single piece of resilient sheet metal (L) formed into an almost-closed double tube with an S-section: one tube (5, 6, 7, 8) has a generally-rectangular section and seats in a cooperating portion of a tubular housing (19) in the sun visor (18) to prevent the spring from rotating relative to the housing while the other tube is bounded by a flat wall (8) in common with the first tube and by a curved wall (9) so as to form a substantially semi-cylindrical housing (10) for the hinge pin. 
<??>The curved wall (9) is divided into two parts by a transverse slot and projects at both ends beyond the ends of the rectangular-section tube. The common flat wall (8) projects at one end beyond the ends of the other walls (5, 6, 7) of the rectangular section tube and is-bent away from the hinge-pin housing to form a flared entrance to the housing while the rectangular tube has an outwardly-projecting retaining tab (17) which seats in a cooperating recess (20) in the wall of the sun-visor housing. 
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Patent GB-2241157-A (GB)
Title: Food display and serving cabinet
Inventor: BURNS STEVEN JOHN
IPC: A47F3/00
Filed: 1990-08-22
Abstract: A food display and serving cabinet comprises a first surface (4) for displaying food and a second surface (6) by which food may be passed to customers, the second surface (6) being mounted above the first surface in such a manner as to be pivotable from a higher operative position to a lower storage position, the overall height of the cabinet being substantially less when the second surface is in the storage position thereof than when the second surface is in the operative position thereof. <IMAGE>
Patent GB-2241802-A (GB)
Title: Register scoreboarding extended to all multiple-cycle operations in a pipelined microprocessor
Inventor: ARNOLD JAMES M
IPC: G06F9/32
Filed: 1991-01-17
Abstract: A resource scoreboarding mechanism (6) allows overlapped instruction execution in a pipelined microprocessor by extending the capability of scoreboard bits in a register file to all multiple cycle operations. If any instruction being issued is lacking any needed resource then it is stopped and reissued in the next cycle. Resources are checked concurrently with the issuing and beginning of the instructions. Each instruction is conditionally cancelled and reissued depending on the resource check for that instruction. Register Scoreboarding sets the destination register or registers busy once the instruction operands pass the resource chock. When the result returns - whether 1 or many cycles later - the resultant register gets cleared, marked as not busy and free to use. Each multi-cycle functional unit maintains a busy signal that is used to delay a new instruction that needs to use the busy unit. The machine bus is split so that REG Format coprocessors execute on a REG portion of the machine bus and MEM Format coprocessors work off a MEM portion of the machine bus. The scoreboard indication (100, 102) is also split between the two types of operations (REG and MEM). A Scbok line (102) is connected to and controls REG coprocessors (2, 4) and the Mem Scbok line (100) is connected to and controls MEM coprocessors (9). <IMAGE>
Patent GB-2259463-A (GB)
Title: Roll crusher: method and apparatus
Inventor: SZAZDI JR JOHN P
IPC: B02C4/28
Filed: 1991-09-12
Abstract: The method comprises the steps of introducing fresh material feed into a roll crusher which is divided into two distinct feed inlet zones 1,3 with at least one initial feed inlet zone 1 for the fresh material and at least one secondary feed inlet zone 3 for feed which has been stressed at least once by said crusher. Each initial zone 1, 2 and each zone 3 directs feed into, respectively, a corresponding initial feed crushing zone 6,7 and secondary zone 16; fresh material is introduced into the roll crusher only in the initial feed inlet zone(s) 1, 2 whereby it is stressed at pressures sufficiently high to cause the formation of at least some agglomerates. The product this formed is recirculated, without causing any substantial disintegration of the agglomerates, into the roll crusher through the secondary feed inlet zone 2 whereby it is further stressed to cause the formation of at least some agglomerates. Crusher may comprise one or two rolls, <IMAGE>
Patent GB-2260387-A (GB)
Title: Valve handle releasable in one orientation
Inventor: NICHOLSON SPENCER
IPC: F16K35/06
Filed: 1991-09-14
Abstract: A valve, for example a double block and bleed valve, comprises two or more valve elements each with an operating spindle turnable by a handle 15. The latter has a locking flange 18 which, when the handle is engaged on one operating spindle underlies a locking flange 22 of an adjacent operating spindle to prevent removal of the handle. The handle locking flange has a recess (21, fig 2) which when in register with the adjacent spindle locking flange permits handle removal. <IMAGE>
Patent GB-2265845-A (GB)
Title: A nebuliser
Inventor: STIMPSON PHILIP GEORGE
IPC: B06B1/02
Filed: 1991-11-12
Abstract: A nebuliser for use in administering a medicament to a patient undergoing treatment for example, comprises an ultrasonic piezoelectric transducer (60) and a transducer drive system (D) which is caused to drive said transducer at or near its anti-resonant frequency. There is also provided means to optimise nebulised fluid particle size and transfer to the patients lungs for example, by operating at an anti-resonant frequency in the range of 1.36 to 1.56 MHz and having a single outlet baffle and relatively short outlet tube (24) arrangement.
Patent GB-2251013-A (GB)
Title: Single trip casing hanger/packoff running tool
Inventor: SINGEETHAM SHIVA PRASAD
IPC: E21B33/043
Filed: 1991-12-02
Abstract: A well tool assembly for running a casing hanger 40 and a packoff 34 into a wellhead housing 90 during a single trip into the well, comprises a tubular inner mandrel 12, a locking mandrel 26 and inner body 28, an outer annular body 16 surrounding and rotatably connected to the inner mandrel, an outer sleeve 20 surrounding the outer body, and means 30 to selectively prevent relative rotation between the outer body and the locking mandrel. The casing hanger is releasably secured to the tool by a lock ring 36 expandable by the looking mandrel 26 and inner body 28. The packoff is secured to the tool by lock pins 32 withdrawable into a circumferential groove provided on the locking mandrel to permit release of the packoff following landing and setting. A breech block thread system is provided for selectively inter-connecting inner mandrel 14 and the locking mandrel 26. <IMAGE>
Patent GB-2255684-A (GB)
Title: Image sensor and method of producing the same
Inventor: TOKUNAGA MITSUHIRO
IPC: H04N5/369
Filed: 1992-03-27
Abstract: In an image sensor, a light receiving element unit 12 is retained by a housing 11. The housing is produced with an injection plastic material as a monoblock molding. The light receiving element unit includes photoelectric converters, windows, and electrodes. Before the molding of the housing, the unit is installed at a predetermined position in a metallic mold. A surface 16 of the unit is consequently formed to be in a plane where a document-conveying surface of the housing exists, or alternatively to have a step H relative to the document-conveying surface. <IMAGE>
Patent GB-2254700-A (GB)
Title: Method of calibrating a flow sensor in a respiratory system
Inventor: FALB WOLFGANG
IPC: A61M16/00
Filed: 1992-04-06
Abstract: A method of calibrating a flow sensor (9) in a respiratory system (1) having control elements (4, 11) in the respiratory system (1) for the purpose of influencing the respiratory gas flow, is improved with regard to the influence of the composition of the respiratory gas. In order to achieve this object, it is provided that, for the purposes of calibration, the control elements (4, 11) are switched to a closed respiratory system with directed respiratory time-volume relationship, conveys the respiratory gas in the respiratory system (1) via the flow sensor (9). By comparing the time-volume relationship with the measurement signal of the flow sensor (9), a calibration value can be obtained for the flow sensor (9). <IMAGE>
Patent GB-2256389-A (GB)
Title: A method of manufactureing an article by superplastic forming and diffusion     bonding and a vacuum chamber for performing the method
Inventor: DOUGLAS JOSEPH
IPC: B23K20/18
Filed: 1992-04-16
Abstract: A stack (48) of titanium sheets (50, 52, 54) are placed on a worktable (28) in a vacuum chamber (10). One of the mating surfaces of each pair of mating surfaces has had a stop off material applied in a desired pattern to prevent diffusion bonding. A pump (18) evacuates the vacuum chamber (10) and heaters (22) heat the stack (48) to evaporate volatile binder from the stop off. When all the binder has been removed the worktable (28) is moved relative to an electron beam from a gun (20) to weld the edges of the sheets (50, 52, 54) together to form a sealed assembly. The volatile binder is removed quickly and oxidation of the titanium is prevented during baking out of the binder. The sealed assembly is then heated and externally pressurised to diffusion bond the sheets together. The integral structure is then heated and internally pressurised to superplastically form one of the sheets to produce an article of predetermined shape. <IMAGE>
Patent GB-2269263-A (GB)
Title: Electronic wind instrument
Inventor: VALLANCE LESLIE
IPC: G10H1/32
Filed: 1992-07-29
Abstract: An electronic wind instrument comprises a musical sound synthesiser controlled remotely by signals transmitted from an input instrument, Fig. 1, itself comprising a keyboard and a mouthpiece 6. Commands from the keyboard are transmitted through a window 2 as coded infrared signals. Commands derived from the player blowing into the mouthpiece are transmitted as analogue ultrasonic signals, the ultrasonic carrier pressure waves for these signals being generated by channelling the players breath over a resonant cavity 7 in the mouthpiece, the signal amplitude being used to control the amplitude of the output tone, and the signal frequency, which is dependent on the volume of the cavity 7, being used to control the pitch of the output tone. The volume of the cavity is reduced by application of lower lip pressure to a lever (13, Fig. 2) connected to a plunger in the cavity. The mouthpiece may be slidable on the instrument to select the notes, or fixed with keyboard switches selecting the notes (Fig. 5), or may be detached from a piano-type keyboard (Fig. 6). <IMAGE>
Patent GB-2272596-A (GB)
Title: Motion compensated video signal processing
Inventor: BURNS JAMES EDWARD
IPC: H04N5/14
Filed: 1992-11-10
Abstract: Motion compensated video signal processing apparatus comprises a subsampler 80 for horizontally subsampling an input digital video signal 20, to generate a subsampled video signal; a motion vector processor 100 for generating motion vectors from the subsampled video signal; and a motion compensated video processor 70 for processing the input digital video signal according to the motion vectors, to generate an output digital video signal 30. The subsampling allows processing of HDTV signals in real time without the need for multiple parallel processing circuits. Also described is a method and apparatus for generating motion vectors wherein correlation values are derived representing correlation between a search block within one image and a search area within another image, interpolated correlation values are then generated and a point of maximum correlation determined, the motion vector being generated in dependence on the determined correlation value. Further described is an apparatus and method wherein a plurality of motion vectors are derived for each pixel and that having highest correlation with a test block is selected. <IMAGE>
Patent GB-2275183-A (GB)
Title: Adjustable footrest
Inventor: WRIGHT ROBERT VICTOR
IPC: A47C16/02
Filed: 1993-02-01
Abstract: A footrest comprises a footplate 18 upon which the feet of a user can rest and means 37 for adjusting the height of the plate which can he operated by the foot of a user. The footplate is spring biased towards its upper position and post 37 can be operated by foot to unlock the adjusting means and allow the height to be set. <IMAGE>