baber/WOPTO huggingface dataset:
Patent GB-2233261-A (GB)
Title: Apparatus for use in repairing turbine rotors.
Inventor: FRASER MICHAEL JAMES
IPC: B23P6/00
Filed: 1990-06-13
Abstract: Apparatus for use in repairing turbine rotors comprises a stand which supports a turbine rotor (10) at positions spaced along its axis, the stand further comprising work stations (31, 32) adapted to provide a work surface (47) extending alongside a blade (73) positioned in an array of blades (12, 13) on the rotor and stop means (90) prevents movement of the rotor relative to the work station so that work operations can be carried out on a blade. The rotor may then be rotated about its axis (15) until an adjacent blade is brought into proximity with the work station whereafter that blade may too be repaired and so on until all blades have had necessary repairs carried out thereto. The work surfaces may be adapted to receive machine tools (50) and other apparatus for the repair of the blades. A plurality of work stations may be provided enabling the simultaneous repair of a plurality of blades on the rotor thereby considerably decreasing the time necessary to carry out full repair to the rotor.
Patent GB-2245002-A (GB)
Title: Method of producing anode materials for electrolytic uses
Inventor: TAKI KUZUHIRO
IPC: C22F1/18
Filed: 1990-06-14
Abstract: A method of producing an anode materials for electrolytic use comprises heat-treating at a temperature of 400 to 800 DEG C during the process a titanium alloy which consists of 0.1 - 10 wt% of nickel and the remainder of titanium and unavoidable impurities and which has been thermally affected above its beta transformation point. Alternatively, the alloy is cold-rolled to a working degree of at least 10 percent prior to the heat treatment. The anode material is made to have a surface roughness, Rmax, of at least 100  mu m, a yield strength of at least 30 kgf/mm<2>, a Vickers hardness of at least 150, and a flatness of at most 6 mm per meter.
Patent GB-2235373-A (GB)
Title: Laboratory furniture
Inventor: RHODES KEITH GEORGE
IPC: A47B87/00
Filed: 1990-06-21
Abstract: Laboratory furniture, for example, a work bench includes a plurality of linked bench modules 14, 16 or 32, 34. Each bench comprises a substantially planar polygonal work surface 20 and connected thereto a bridging unit 24. One free end of the bridging unit 24 is adapted for attachment to an edge of an adjacently disposed module. Each module 14, 16, 32, 34 also includes a support structure (not shown) which serves to carry and support the bridging unit 24 and the work surface 20. The support structure includes connections for services such as gas, water, electricity etc and outlets, for example, gas taps 18, water taps 28, drain 30 etc are provided in or on the work surface and/or the bridging unit. The modules can be combined in a variety of arrangements with each work surface being provided with a number of service points. <IMAGE>
Patent GB-2246365-A (GB)
Title: Hydrocarbon treatment
Inventor: DE MUNCK NICOLAAS ANTHONY
IPC: B01J23/755
Filed: 1990-07-27
Abstract: Olefins, which may be sulphur-contaminated, are oligomerized using a supported nickel catalyst having a nickel content of at least 35% by wt. The support may comprise silicon and calcium in a Si: Ca wt. ratio of at least 8:1.
Patent GB-2247132-A (GB)
Title: Digital video data compression
Inventor: WALKER GAVIN ALEXANDER
IPC: H04N7/30
Filed: 1990-08-17
Abstract: In order to avoid edge effects in a block transform based video data reduction scheme, the video data is divided into overlapping blocks, with each block corresponding to a portion of the video picture such that each portion overlaps with adjacent blocks. The block form video data is transform coded, such as by a discrete cosine transform, on a block-by-block basis. Coefficient selection is then performed on the transform coded data, such as by ordering the coefficients by magnitude and selecting the first N coefficients, thereby generating compressed data. In order to reconstitute the video data, such as after transmission, the compressed data is regenerated according to the coefficient selection scheme, and is inverse transformed so as to recover the block form video data. Edge reconstruction of the blocks is then performed by weighted addition of corresponding video data samples in overlapping parts of adjacent blocks. Preferably, the weighted addition involves averaging each two corresponding data samples at the overlapping block edges, and averaging each four corresponding data samples at the overlapping block corners. <IMAGE>
Patent GB-2249480-A (GB)
Title: Earpiercing cartridge assembly
Inventor: MANN SAMUEL J
IPC: A44C7/00
Filed: 1990-11-07
Abstract: A disposable earpiercing cartridge assembly for protecting the earpiercing gun and customer from contamination during piercing is provided. A stud cartridge 20 releasably contains a pair of earring studs. A clutch cartridge 50 releasably contains a pair of earring clutches. A spring gun 75 for ejecting the earring stud from the stud cartridge causes the stud to leave the stud cartridge and pierce the ear and engage the clutch. The spring gun is adapted to selectively receive and position the stud cartridge and the clutch cartridge for piercing, the stud cartridge being positioned between the ear and the spring gun, while the clutch cartridge is positioned between the ear and an anvil 82 of the spring gun. <IMAGE>
Patent GB-2238465-A (GB)
Title: Mounting bracket for roller assembly
Inventor: JACKSON JOHN
IPC: E06B9/11
Filed: 1990-11-28
Abstract: A mounting for a roller assembly is formed as a pair of brackets adapted for attachment to a vertical wall surface, with at least a first bracket 30 including an inclined guide path 42 formed between guide walls 41. A slot 46 at the guide path's upper end is provided with a square cross-section recess or socket 48 adapted to receive a square cross-sectional spring loaded spindle of a roller assembly (not shown). The spindle rests at the bottom of the socket on one end 60 of a lever 52 pivotally mounted through a slot 50 in the surrounding wall. Thus operation of the lever's other end will depress the spindle and release same from the socket. A second bracket may be indentically formed or the lever 52 may be omitted. <IMAGE>
Patent GB-2246256-A (GB)
Title: Signal delay circuits
Inventor: SIN YUN-SEUNG
IPC: G11C11/4076
Filed: 1990-12-31
Abstract: A signal delay circuit includes a driving circuit means DRV for driving an output signal Vo with a swing width between a supply voltage Vcc and a ground voltage Vss. The signal delay circuit further includes a varactor load means VCL which is coupled with the output signal Vo and has a capacitance increasing according to the supply voltage Vcc within the variation range of the supply voltage Vcc. In the signal delay circuit, to solve the problem that the delay characteristic of the signal propagation circuit adapted in the CMOS semiconductor integrated circuit depends on the change of voltage with the result that the operating speed is limited, the delay characteristic of the signal propagation circuit is kept independent of the change of the voltage of the supply voltage by use of a MOS varactor or a combination circuit of these so that high-speed operation of the CMOS semiconductor integrated circuit can be obtained and reliability can be improved. <IMAGE>
Patent GB-2253712-A (GB)
Title: Collapsible eyeglasses
Inventor: HUANG DAVID
IPC: G02C5/00
Filed: 1991-03-12
Abstract: A pair of collapsible eyeglasses comprising two lens frames (20, 20') connected with a hinge (21) between them so as to be collapsible on each other, two arms (22, 22') of resilient material hingedly connected to the outer side of each lens frame and having almost the same length as that of each lens frame and carrying a silicone rubber pad (221, 221'). <IMAGE>
Patent GB-2253892-A (GB)
Title: Valve for sudden rapid transfer of gas
Inventor: BAKER THOMAS
IPC: F16K31/122
Filed: 1991-03-21
Abstract: A valve (10) for sudden rapid transfer of helium from a gas cylinder to a flotation bag comprises a piston (12) in a cylinder housing (11) having an inlet (22) and an outlet (25). Above the piston head (15), the housing (11) forms a closed chamber (18). Within the piston (12) is a rod (38) of a servo device (37). The rod (38) is acted upon by high pressure helium and bears against housing cover (17) to hold piston (12) in its normal closed position. The housing (11) has actuation ports for supplying compressed air to a chamber (35) to actuate the valve (10). The valve (10) has a number of gas-tight seals (30, 31, 56), all of which vent on their downstream sides either to the actuation ports or to the outlet (25). <IMAGE>
Patent GB-2244519-A (GB)
Title: A rotary internal combustion engine
Inventor: BOEHMERT ERICH HUGO
IPC: F02B53/08
Filed: 1991-05-28
Abstract: In a rotary internal combustion engine 2 a casing 4 includes a bore (6) in which an engine rotor 8 is mounted for rotation, first vanes 10 being associated with the engine rotor 8 for sliding operation against the wall 12 of the bore 6, a compressor rotor 14 being mounted for rotation in the bore 6, second vanes 16 being associated with the compressor rotor 14 for sliding operation against the wall 12 and passage means (18, Fig 5) permitting gases to be passed from the part of the bore 6 containing one of the rotors to the part of the bore 6 containing the other rotor. Part 52 serves as an inlet/outlet for air/waste gases and 50 denotes a waste canal. Oil 20 within engine rotor 8 acts as a lubricant and coolant. Cooling fins 23 are provided. <IMAGE>
Patent GB-2248444-A (GB)
Title: Process for removing hydrogen sulfide from a gaseous mixture and producing sulfur therefrom
Inventor: RENDALL WILLIAM ALAN
IPC: C01B17/04
Filed: 1991-09-04
Abstract: A two-step method for removing hydrogen sulfide (H2S) from a gaseous mixture comprises (1) reacting carbon dioxide (CO2) with H2S in the presence of a catalyst such as alumina to form carbonyl sulfide (COS) and (2) subsequently decomposing COS to carbon monoxide (CO) and sulfur (S) which may be in the presence of a metal catalyst such as alumina or a metal sulphide or by photochemical or microwave means. Hydrogen (H2) as well as S may be recovered where CO is substituted as a reactant for CO2.
Patent GB-2247020-A (GB)
Title: Increasing the enantiomeric purity of glycidic acid esters
Inventor: GHIROTTO LUCA
IPC: C07D281/10
Filed: 1991-09-30
Abstract: The enantiomeric purity of a non-racemic ester of 3-(4-methoxyphenyl)-glycidic acid in which the enantiomeric ratio (2R, 3S):(2S, 3R) is at least 80:20 may be increased by crystallization from a solvent, especially methanol, ethanol, propanol or butanol.
Patent GB-2261704-A (GB)
Title: Subjecting hydrocarbon fuel to a magnetic field
Inventor: CHARLES COLIN
IPC: F02B3/06
Filed: 1991-11-13
Abstract: Fuel flowing to an i.c. engine or a furnace burner is subjected to a field between 4000 and 25000 gauss at a gap 27 in the region of N and S permanent magnet poles. Various magnet arrangements are described (Figs. 3 to 5) together with particular materials for the support components. <IMAGE>
Patent GB-2262199-A (GB)
Title: A security camera drive arrangement
Inventor: DAVIES TREVOR
IPC: G08B13/196
Filed: 1991-12-06
Abstract: A security camera housing adapted to support a television camera mounted on a rotatable support member driven by a final drive wheel (21) thus to pan across a site to be viewed includes drive means for the support member comprising at least two motors (29, 30) which are capable of driving the support member separately or simultaneously through reduction gearboxes (28, 31) and an epicyclic gearbox (24, 25, 26) to enable rotation of the camera slowly in an automatic mode or at an increased speed to follow a moving target or to turn rapidly to a desired direction. The system utilises reliable fixed speed motors which do not require brushes or expensive variable frequency controllers or mechanical clutches and so is inexpensive to manufacture and maintain. The camera may be driven at the speed of either motor or at the sum or difference of their speeds. <IMAGE>
Patent GB-2252928-A (GB)
Title: Metal castings
Inventor: BAYLISS COLIN RICHARD
IPC: B22D18/02
Filed: 1992-02-05
Abstract: A quantity of molten metal 26 is introduced into a die cavity 20 and a pressurising force is applied to the molten metal by thermal expansion of a second material 24 in liquid form via a partition 18 separating said molten metal and said second material. The chamber holding the second material, e.g. mercury, is provided with a pressure relief valve 30 and a drain/ refill value 32. Heat for expansion of the second material is derived from the molten metal in the cavity. Additional heat may be provided by element(s) 36. <IMAGE>
Patent GB-2251302-A (GB)
Title: Solid fuel stove
Inventor: GREENALL JONATHAN
IPC: F24B1/02
Filed: 1992-02-14
Abstract: A stove comprises a fire-box (4), and an ash-chamber (5) separated by a dividing wall including a grate (19). Air intake means (21, 23) is provided beneath the ash-chamber. Air supply means (30) connected to the air intake means extends vertically past the ash-chamber and the fire-box to an upper region of the fire-box. Air delivery means (27) provides communication between the air supply means and the fire-box. External air is pre-heated by passing underneath the ash-chamber and past the ash-chamber and the fire-box during its passage into the fire-box. Turbulence caused by an interaction between pre-heated air entering the fire-box and combustion products causes smoke and soot to be pushed away from a door (35) at the front of the fire-box. The door (35) includes an air inlet (37). <IMAGE>
Patent GB-2266880-A (GB)
Title: Blister package
Inventor: BRYANT NEAL CHARLES
IPC: B65D75/34
Filed: 1992-05-16
Abstract: A blister package comprises two card portions which are sealable one on the other by contact adhesive to enfold at least one blister strip, each card having apertures which in use register exactly with each other and with individual blisters. The card portions may comprise discrete cards or may be integrally joined with a fold line. The blisters may contain pharmaceutical tablets or capsules. The adhesive may be screen printed on the card and may be Latex based, or may be a film with a high tack adhesive on both sides. The package may have further folds or flaps to form a wallet (figure 4). <IMAGE>
Patent GB-2268717-A (GB)
Title: A security device for a vehicle
Inventor: HORN ROBERT
IPC: B60R25/00
Filed: 1992-07-16
Abstract: The anti-theft security device is shaped and sized to prevent the operation of both of the clutch and the brake pedals of a lorry. The security device, which is made from mild steel, has two spaced enclosures (2) defined between a base wall (6) and a top wall (4). Each of the base and top walls (6, 4) has a substantially U-shaped cutout (8) defining, together with intermediate walls (10), a U-shaped channel (20). With a retaining bar (14) removed, the device is oriented with its base wall (6) on the floor of the lorry and is then moved such that the clutch and brake pedals are received within respective enclosures (2). In this position, the channel member (20) is around the steering column or around part of one of the pedals. The retaining bar (14) is then inserted through slots (12) in the walls (10) to close the channel member (20) and to retain said part of the lorry within the channel member (20). The bar (14) is then locked in position by a padlock provided in an aperture (18) therein.   <IMAGE>
Patent GB-2259557-A (GB)
Title: Tripode universal joints
Inventor: RICKS MICHAEL
IPC: F16D3/205
Filed: 1992-09-10
Abstract: A torque transmitting universal joint of the tripode type, having an outer joint part (13) with three circumferentially spaced recesses (14) extending parallel to its rotational axis and each defining opposed tracks, an inner joint member (11) having arms (12) extending into the recesses, each arm supporting a respective roller assembly (16) with a roller (18), the roller being carried relative to the arm so that it is movable lengthwise of the arm and is able to rotate about and pivot relative to the arm. Each roller is supported on a part-spherical surface of the arm or of the roller-carrying means so arranged that when the joint is transmitting torque in the aligned condition, the resultant of forces acting on the roller through the part-spherical surfaces is at a perpendicular distance from the axis of rotation of the joint different from the perpendicular distance from the axis of rotation of the joint of the resultant of forces acting on the roller from the outer joint member, so that the roller is subject to a tilting moment about its region of contact with the loaded track. <IMAGE>
Patent GB-2262311-A (GB)
Title: I.c.engine fuel injection nozzle.
Inventor: GORDON UWE
IPC: F02M61/04
Filed: 1992-11-16
Abstract: A nozzle tube 1 has a plurality of lip parts 2, the edges 3 of which rest one against another. The lip parts 2, which form a frustocone, are held together under high prestress by a clamping sleeve 7 and a cap 10. Pressure build-up in the interior space 5 of the nozzle tube 1 spreads the lip parts 2 elastically, gaps being formed which shape flat spray jets (13, Fig. 2). <IMAGE>
Patent GB-2273982-A (GB)
Title: Security system for angling equipment
Inventor: ROMANG DEREK
IPC: G08B29/04
Filed: 1992-12-30
Abstract: A passive infra-red detector 12 having an area of surveillance covering the interior of a shelter for an angler and external passive infra-red detector 10 having an area of surveillance covering exposed items of equipment lying outside the shelter are connected to a control unit 14 having an alarm 16. The internal detector may be incorporated in the control unit and the second detector connected to it by a wire or radio signal. The system may also be used to protect a caravan. The sensors may be armed singly or in combinations; the external sensor may be disarmed if the internal sensor detects movement. <IMAGE>
Patent GB-2264181-A (GB)
Title: Optical isolator
Inventor: HOSOKAWA TADATOSHI
IPC: G02F1/09
Filed: 1993-02-15
Abstract: An optical isolator comprises a first polarizer (3) for separating an incident light beam into two light beams which are orthogonal one to another in a direction of polarization and which are non-parallel one with another in a direction of propagation, a 45 degree Faraday rotator (4), a second polarizer (5) which corresponds with the first polarizer (2) in respect of a light beam-separation angle but which differs from the first polarizer (3) by 45 degrees in respect of an angle between the two separated light beams and the polarization of the beams and at least one birefringent crystal plane plate (6) which directs two parallel light beams, in planes of polarization at right angles one with another into a single beam. The first and second polarisers may be Wollaston or Rochon prisms. <IMAGE>
Patent GB-2266988-A (GB)
Title: Semiconductor saturable absorber for a laser
Inventor: JACOBOVITZ-VESELKA GLORIA R
IPC: G02F1/355
Filed: 1993-04-30
Abstract: A laser is modelocked or Q-switched by means of a semiconductor saturable absorber. The composition or other characteristic of the absorber varies along the direction of light propagation within the absorber. The saturable absorber may consist of a series of quantum wells separated by barriers.
Patent GB-2266787-A (GB)
Title: Thin film reinforcing structure and method for manufacturing the same
Inventor: VIITANEN VELI-PEKKA
IPC: H01J5/18
Filed: 1993-05-07
Abstract: A reinforcing structure on a film less than 5 micrometers thick which is permeable to X-ray and ultraviolet radiation is made by applying a curable photosensitive layer to the film on an etchable support, imagewise exposing and developing the layer, to form the structure, curing the layer and removing, by etching, the substrate. The film is preferably polyimide, as is the photosensitive layer and the support is preferably silicon or a metal. The structure produced is preferably in the form of a lattice. The product may be used as a detector window in an X-ray analyser.
Patent GB-2267398-A (GB)
Title: Coaxial connectors
Inventor: COHEN THOMAS SHACKNEY
IPC: H01R13/646
Filed: 1993-05-21
Abstract: A coaxial connector has integral central contact (72) and resilient retention (80) portions, with a peripheral coaxial contact (26) separated by an insulating element (22) secured to both. The peripheral coaxial contact (26) may be secured also in an insulating housing (10). A plurality of coaxial connectors may be mounted in a singe housing. <IMAGE>
Patent GB-2269016-A (GB)
Title: Mechanical deceleration sensor
Inventor: NISHIZAWA MUNEO
IPC: B60R21/33
Filed: 1993-07-08
Abstract: A mechanical acceleration sensor having a weight 2 movably supported on a casing, a latch lever 3 loaded with a set load and disposed to face the weight, and a firing pin 4 spring-loaded and engaged with the latch lever. The latch lever 3 is disengaged from the firing pin 4 against the set load by inertial movement of the weight 2 relative to the casing, thereby allowing the firing pin to perform a percussive action. A sub-lever 5 is provided in connection with the latch lever. The sub-lever 5 is disposed to face a side of the weight 2 which is opposite to the side thereof that faces the latch lever so as to cooperate with the latch lever 3 to clamp the weight 2 from both sides of the direction of inertial movement of the weight, thereby making it possible to sense acceleration acting on the sensor in both the positive and negative directions of inertial movement of the weight 2 by the inertial movement thereof. <IMAGE>
Patent GB-2273785-A (GB)
Title: Wheel alignment measuring system
Inventor: GROSSART PETER SIMPSON KIRKWOO
IPC: G01B7/315
Filed: 1993-12-15
Abstract: A wheel alignment measuring system has front wheel clamps (17, 18) each carrying a forwardly projecting arm (22) having an angle sensor bracket (23, 24) having dual operation. Inwardly directed toe tracking arms (32, 33) extend towards each other across the front of the vehicle and are linked by an elastic cord (34). Rearwardly projecting arms (29) are linked by elastic side cords (30, 31) to forwardly projecting tracking arms (28) of rear angle sensors (26, 27) clamped to the rear wheels (13, 14). Conventional angle sensors (26, 27) detect the angle of tracking arms (28). The dual function angle sensors (23,24) on the front of the vehicle each comprise a potentiometer (55) journalled in a movable body (62) which can be raised or lowered by a solenoid (67), thereby causing either an upper drive finger (60) or a lower drive finger (61) to engage a drive connector (65 or 66). Thus, potentiometer measurements can be made in response to rotation of the upper drive connector (65) connected to the elastic front cord (34) or to the lower drive connector (66), influenced by one of the elastic side cords (31). The advantage of the arrangement is that all the elastic cords (31, 34) are left in position throughout the measuring of the wheel alignment measurements, specific readings being taken by selecting appropriate function of the dual function angle sensor. <IMAGE>
Patent GB-2282332-A (GB)
Title: Bubble forming flying toy
Inventor: KWAK SANG
IPC: A63H33/28
Filed: 1994-03-25
Abstract: A bubble-forming flying toy includes an annular aerodynamic surface 12; a bubble-forming framework 14 having at least one bubble-forming aperture 30 bordered by other apertures within the confines of a circumferential outer ring structure; and a plurality of equal length struts 16 disposed between the annular aerodynamic surface and the bubble-forming framework that the bubble-forming framework is offset vertically from the aerodynamic surface by a distance of from about 1 inch (2.54cm) to about 1 1/2 inches (3.81cm). The framework 14 is suitably made up of a number of apertures 30 surrounded by a plurality of soap-solution storage rings 36. The storage rings may be provided with radial ridges and grooves to increase the storage capacity. <IMAGE>