baber/WOPTO huggingface dataset:
Patent GB-2218523-A (GB)
Title: Sensing the composition of gas
Inventor: JONES CHRISTOPHER PETER
IPC: G01N27/12
Filed: 1989-02-22
Abstract: Selectivity in sensing gas composition, using electrical conductance charges in sensing material (e.g. semiconducting oxide) that is catalytic for the decomposition of one or more constituents of the gas, is improved by using either of two alternative methods. In the first, temperature is charged as gas diffuses through a body of the material from a surface of the body to a region in the body where electrical conductance is measured. The resulting conductance/time graph shows respective peaks corresponding to different constituents. In the other method, electrical conductance is measured at two or more different regions (figures 3 and 4) in the material and a composition profile of the gas within the body is obtained as the gas defuses through the body. <IMAGE>
Patent GB-2231028-A (GB)
Title: Stairlift
Inventor: DEREK NICHOLSON
IPC: B66B9/08
Filed: 1989-05-05
Abstract: A stairlift comprises a rail 1, Fig 3 fixed along a flight of stairs so as not to overhang an upper landing 41. A carriage 44 carries a footrest 49 and is movable between an upper position, Figure 3, in which the top surface 50 is level with the upper landing 41, and a lower position (Figure 4), in which the bottom 51 of the footrest 49 rests on the lower landing (52). The carriage may also comprise a stop 18, Fig 1, operative to engage the track 2 over a predetermined maximum speed. <IMAGE>
Patent GB-2220893-A (GB)
Title: Distributing ink in ink-jet printers
Inventor: EVLIN JOHN CHRISTOPHER
IPC: B41J2/19
Filed: 1989-07-10
Abstract: A manifold for sub-dividing the flow of ink into a number of individual sub-flows to be fed to respective nozzles, is characterised in that it comprises an axially elongated chamber having at one end thereof a substantially axially directed fluid inlet substantially co-axial with the longitudinal axis of the chamber and in that it has at the other end thereof a plurality of substantially axially directed outlets for the sub-flows, which outlets are located substantially symmetrically about the axis of the chamber. The invention also provides an ink jet printer containing such a manifold and a method of operating such an ink jet printer. <IMAGE>
Patent GB-2225938-A (GB)
Title: Seats fitted with removable covers
Inventor: JEAN-PIERRE BAUMGARTEN
IPC: A47C31/10
Filed: 1989-12-06
Abstract: In seats fitted with removable covers, of the type where the supporting surface (2) is fixed onto lugs or brackets (3) forming pant of the exposed tubular uprights (1) bordering the said surface, each side of the cover (6, 7) extending along the uprights (1) is reinforced by a rigid frame (8) of hairpin shape, each leg being integral with the corresponding face of the cover and the ends of the said legs being in the direction of the side which includes a sliding fastener. <IMAGE>
Patent GB-2237236-A (GB)
Title: A process and apparatus for the thickness error correction of an extruded blown foil
Inventor: HALTER HARTMUT
IPC: B29C48/10
Filed: 1990-09-04
Abstract: The blown foil extruder unit has an annular extrusion gap nozzle (3) attached to the blowing head (2) with a metallic inner and/or outer annular gap nozzle lip (4) which forms a complete circle for the extrusion of the thermoplasticised synthetic material, the blown foil thickness being subjected to automatic error correction at the annular gap nozzle (3), in conformity with measured thickness readings, by elastically deformable adjustment of one or both of pre-stressed annular gap nozzle lips (4), which are both pre-stressed and adjusted by at least one of a set of peripherally distributed and radially acting setting elements (11). The lips (4) may have deformation inducing grooves (15), and the setting elements may be screw actuated, or piezo-electrically actuated, for both the pre-stressing and the error connection. <IMAGE>
Patent GB-2242545-A (GB)
Title: Air fuel ratio control for internal combustion engine
Inventor: UCHIDA MASAAKI
IPC: F02D41/14
Filed: 1991-01-24
Abstract: A learning or updating function which corrects the feedback correction factor  alpha  is included in a dual oxygen sensor type control system. Correction related data which is used to modify alpha in response to the output of an upstream sensor is recorded at memory addresses corresponding to sub-sections of an engine operation map. When the output of the upstream sensor changes, a sub-region in which the engine operation fell a given time earlier or in which the engine operation has continuously fallen for the given time, is selected and the correction related data which is recorded at the corresponding address is read out. The data is updated according to the output of the second sensor, and re-recorded at the same address. The sensors may be on either side of a catalytic converter. <IMAGE>
Patent GB-2252567-A (GB)
Title: Metal/ceramic protective coating for superalloy articles
Inventor: MOVCHAN BORIS ALEXEEVICH
IPC: C23C14/58
Filed: 1991-02-11
Abstract: A metal/ceramic protective coating as illustrated in Fig 1 for superalloy articles comprises an outer ceramic layer (1) comprising metal oxides; an oxidation-resistant layer (2) comprising an M-Cr-Al-Y alloy, where M comprises Ni, Co, Fe, or a combination thereof, with an Al content in the oxidation-resistant layer (2) of 7.5-14.0% by weight; and an inner plastic layer (3) comprising an M-Cr-Al-Y alloy, where M comprises Ni, Go, Fe, or a combination thereof, with an Al content in the inner plastic layer of 2.5-5.5% by weight, lying between the oxidation-resistant layer (2) and the surface of a superalloy article (4), wherein the ratio of thicknesses of the oxidation-resistant layer (2) and the inner plastic layer (3) is 4.0-1.0. The ceramic layer may be formed of yttria-stabilized zirconia which may contain TiB2, ZrB2, HfB2, or Ce2S3. In addition there may be an aluminide layer between the inner plastic layer and the surface of the superalloy article. The coated product finds use as gas turbine blades or in parts for internal combustion engines. <IMAGE>
Patent GB-2241767-A (GB)
Title: Connection between screw shaft and drive cable
Inventor: YANO HIDEAKI
IPC: F16C1/08
Filed: 1991-02-22
Abstract: A structure for connecting a screw shaft 3 and a drive cable 6 in a seat belt positional adjustment device comprises a first joint 16 coupled to the screw shaft 3, and a second joint 28 coupled to the drive cable 6. The connecting ends of screw shaft 3 and drive cable 6 are noncircular in section. The joint 16 includes a cylindrical rotatable member 20 having a noncircular bore 22 to receive the end 14 of the screw shaft 3. The joint 28 includes a cylindrical coupling member 32 having a noncircular bore 36, a holder 30 for the coupling member 32 and a stopper 38 extending radially from the inner periphery of the holder 30 to prevent release of the spring biassed coupling member 32 from the holder 30. The end 12 of the drive cable 6 is inserted into the bore 36 and the coupling member 32 and rotatable member 20 are engaged with each other. Holders 18, 30 for the rotatable member 20 and coupling member 32 have interengaging elements 26, 46 to prevent the first and second joints from being separated from each other. <IMAGE>
Patent GB-2249588-A (GB)
Title: External axis rotary piston blower
Inventor: SOHLER WOLFGANG
IPC: F04C29/00
Filed: 1991-10-14
Abstract: An external-axis rotary piston blower is provided with two mutually intersecting cylindrical peripheral running surfaces (6) and pistons (7, 8) with running surfaces that are concentric with their axes and which engage their peripheral running surface and axially concentric cylindrical surfaces of smaller radius running against the respective opposing piston. The pistons (7, 8) are radially split in the middle and the two axially end-to-end portions (9, 10, 11, 12) so formed are displaced with respect to one another by 25 DEG  to 45 DEG  to reduce the overall intake and delivery noise, the displacement being clockwise in one piston and in the opposite sense in the opposing piston. <IMAGE>
Patent GB-2260505-A (GB)
Title: A hydrocyclone
Inventor: VIKIOE PENTTI
IPC: B04C11/00
Filed: 1991-10-17
Abstract: A hydrocyclone is provided with a wear monitoring element embedded in the conical wall section of the shell of the hydrocyclone during its manufacturing stage. When the furrows worn by abrasive fraction of the hydrocyclone are deep enough to reach the monitoring element, the wear causes a visually observed leak or some other signal alerting the operating personnel to the need of replacing the partly worn hydrocyclone. The monitoring element may comprise a conduit or tube 24, a conductor wire, or spaced conductor stripes. The hydrocyclone may be used to purify fibre suspensions from dirt in cellulose and paper mills. <IMAGE>
Patent GB-2249245-A (GB)
Title: Microwave oven door choke seal
Inventor: LEE KI IN
IPC: F24C7/02
Filed: 1991-10-21
Abstract: A microwave shielding device for a door of a microwave oven comprising a door frame (11) with an integral seal plate, a bend portion (12) formed at one side of the door frame and having a surface 12a for contacting the oven housing and a noncontact surface 12b, and a choke seal 17 provided at one side of the bend portion by a vertically bent portion 13 and a flange portion 14. Slits 16a, 16b divide the flange into portions 15a, 15b and apertures 18, 21 are formed in these portions. Dimensions are specified in terms of wavelength. <IMAGE>
Patent GB-2263134-A (GB)
Title: Door or window security bolt
Inventor: STEVENS CARL MARK
IPC: E05C3/04
Filed: 1992-01-10
Abstract: A door/window in which the framing (10) of the opening member of the door/window and the surround (6) that is set in a wall (6A) are fabricated from hollow extrusions has a deadlock arrangement comprising a pivoted bolt member (1) housed within one of the surround (6) or the framing (10) and pivotable from a withdrawn, opening member unlocked, position within the surround or the framing to an extended position entered in the other of the surround or the framing to lock the opening member in its closed position. In one form the surround (6) or the framing (10) in which the latch member (1) is housed is provided with a catch means that serves to retain the latch member in its extended position, the action of this catch means being overridable to allow desired movement of the latch member between its withdrawn and extended position. The catch means can be in the form of resilient nibs for engaging the latch member (1) or alternatively can be a key-operated lock fitted to the latch member (1). The head (4) of the bolt can be slotted, for operation by the edge of a coin. <IMAGE>
Patent GB-2252385-A (GB)
Title: Methods and apparatus for lubricating pipes
Inventor: BIRCH MALCOLM WILLIAM
IPC: F16L55/165
Filed: 1992-01-31
Abstract: The external surface of a pipe 11 is lubricated by passing the pipe 11 through a chamber 15 containing lubricant and defined by dies 14, 12 and structure 16 whose ends are sealed to the dies. Preferably the lubricant is under pressure. The die 14 reduces the pipe diameter by a small amount e.g. 1 to 2% to ensure a seal. The die 12 may be a swaging die and the pipe 11 a plastics pipe which after passing through the die 12 is allowed to expand to line a pipe 10. <IMAGE>
Patent GB-2259176-A (GB)
Title: Backlight generating apparatus for a liquid crystal display device
Inventor: PARK JONG-HO
IPC: G02F1/1335
Filed: 1992-04-09
Abstract: A backlight generating apparatus for an LCD device which comprises a light-passing plate (30) sloped with respect to a diffusing plate (10) and a diffusing material (20) having a good refractivity between the two plates. This apparatus permits use of a diffusing plate (10) with good transmittivity, to increase light efficiency, improve brightness, and decrease power consumption. A reflecting layer (40) and a polarizing filter (1) are provided. In another embodiment (fig 4) the light passing plate (30) is sloped on both surfaces and the reflecting layer (40) is set at an angle. <IMAGE>
Patent GB-2266733-A (GB)
Title: Process for indigo dyeing and beaming of warp yarn
Inventor: LAU WAH
IPC: D06B3/04
Filed: 1992-05-07
Abstract: Dyed warp yarn in a sheet form is divided into several sections from left to right and the yarn in the respective sections is mixed and overlapped with each other and wound on to a loom beam, the yarn in each initial section being distributed across the width of the loom beam so as to avoid a progressive change in dye shade from left to right across the width of the beam.
Patent GB-2260037-A (GB)
Title: Above-floor service fitting for poke-through wiring device
Inventor: WUERTZ EMIL S
IPC: H02G3/18
Filed: 1992-07-28
Abstract: A poke-through wiring device for mounting in a bore opening through a concrete floor slab includes individual tubes for through-floor passage of power supply and data/ communication conductors, an intumescent barrier 22 for sealing the bore, and an above-floor service fitting 12 having a main frame 16 including a bottom wall 37 having spaced apart power supply and low voltage data/ communication openings 38, 40 therethrough. A pair of opposing sidewalls 50 extend upwardly from the bottom wall and each defines a plurality of receptacle openings 52. A unitary receptacle barrier 18 mounted on and cooperating with the frame isolates the power supply opening, at least one receptacle opening in one of the sidewalls and at least two of the receptacle openings in the other of the sidewalls from the data/communication opening. An auxiliary frame 16a may be connected to the main frame to increase the number of available receptacle openings. <IMAGE>
Patent GB-2260640-A (GB)
Title: Cell-size inspection device for nuclear fuel assembly
Inventor: MASASHI YOSHIDA
IPC: G21C3/34
Filed: 1992-10-16
Abstract: A cell-size inspection device (1) which inspects the size of each cell of a fuel assembly supporting grid (21) comprises a base (5) supporting the grid, and a movable plate (41) carrying a plurality of pin gauges (51) and relatively movable with respect to the base in a longitudinal direction of the cells to insert the pin gauges into respective cells. The pin gauges are freely slidable in the movable plate along the longitudinal direction of the cells so that a defective cell obstructs the entry of the corresponding pin gauge to cause it to slide in the movable plate and actuate a sensor. The base 5 allows positional manipulation of the grid so that the array of gauges inspects each quarter of the grid in turn. <IMAGE>
Patent GB-2270933-A (GB)
Title: Toilet flushing apparatus
Inventor: OSMOND JOHN SIDNEY
IPC: E03D1/08
Filed: 1992-11-02
Abstract: In a toilet flushing apparatus having a flush tank and a flush pipe opening into a toilet bowl, there is provided a water level control means responsive to depletion of water in said tank to refill said tank to a predetermined water level, said means including; a syphon within the flush tank and comprised of inner and outer tubes and an intermediate tube defining a suction leg 11 opening within the bottom of said tank and extending upward to a bridge at the aforesaid predetermined water level, and a discharge leg 12 continuing from the suction leg and extending downward from the bridge and discharging downwardly and inwardly through an annular let opening and into the flush pipe, and a closed header extending between said inner and outer tubes and spaced above the bridge to define a transfer passage 14 connecting a wet suction leg and a wet discharge leg of the syphon, there being a breather means comprised of a vent opening 28 above the syphon bridge 10 and from the transfer passage 14 to a port 29' immediately below the flush valve seat 25 and into the flush pipe 23 and open to outside atmosphere via the toilet bowl in the passive ready to flush mode, and closed by primer tank water in the flush mode by occluding said port from outside atmosphere and thereby enabling the syphon effect. <IMAGE>
Patent GB-2277136-A (GB)
Title: Cleaning ships' holds
Inventor: HARRISON ROBERT EDWARD HARDY
IPC: B08B7/02
Filed: 1993-04-16
Abstract: A machine for dislodging e.g. coal from the sides of the holds of ships is in the form of a remote controlled rotary head on which are mounted one or more flails e.g. chains 8. The head is mounted on an extendable arm 2 which is movable vertically and horizontally and may be carried on a vehicle (Fig. 3). The head may comprise a conical member 7 to the surface of which are attached the chains 8. <IMAGE>
Patent GB-2277973-A (GB)
Title: Apparatus for securing two parts together.
Inventor: HARLEY DAVID NORMAN
IPC: F16B12/20
Filed: 1993-05-14
Abstract: Apparatus for use in securing an end or edge of a first member (42) to a surface 44 of a second member (46). The apparatus comprises a receptor (50) fixedly installed in a recess (54) in the surface (44) of the second member (46), and a connector (72) installed in a bore (58) formed in the end or edge of the fast member (42) with an end (74) of the connector (72) projecting outwardly the bore. The end (74) of the connector (72) is retained on push-fitting into receptor (50). An adjustor (70) installed in or on the first member (42) is adjustable for altering the position of the connector (72) in the bore (58) so as pull the first and second members (42, 46) towards each other. The adjustor (42) may be a rotatible cam (as shown), or a linear cam, or a rack-and-pinion arrangement. In Figure 6, the adjustor (110) is mounted in a body (114) at the end of the first member (42). The receptor (50) and the body (114) may be fixed by ribs, or screws or nails engaging a flange. <IMAGE>
Patent GB-2270789-A (GB)
Title: Educational aid.
Inventor: BIRKBY ANTHONY DONALD
IPC: G09B19/02
Filed: 1993-05-19
Abstract: The invention relates to an educational aid particularly for helping a user to learn multiplication tables and understand their meaning. A rectangular frame (12) has twelve lateral horizontally extending, rods (17) mounted one above the other and each carrying twelve beads (18) slidably threaded thereon. The beads occupy no more than two thirds of the width of the frame between the side frame members when all the beads are pushed to one side of the frame. The frame is provided with support means (20, 21) for supporting a selected one of a plurality of cards in the frame so that they extend in front of the beads when so pushed to one side of the frame. The cards contain lines of printing, which lines align with the rods when supported in the frame, relating to the multiplication tables. <IMAGE>
Patent GB-2282893-A (GB)
Title: External simulator of current transformers
Inventor: XU QIFENG
IPC: G01R15/18
Filed: 1993-10-13
Abstract: According to the present invention a auxiliary CT Tm is connected to the secondary loop of the main CT Tn. Tm's iron core has the same magnetisation characteristics as Tn's. Tm and Tn have the common impedance when the rated secondary current are same and different impedance when the rated secondary current are different. A high gain amplifier PA is connected as differential amplifier. Its input is the difference between Tn's secondary voltage and Tm's secondary voltage. This circuit is so designed that the current output of the high gain amplifier proportionally to Tn's primary current including harmonics ad unidirectional component. So it is realizable to use this invention to get true primary current externally. It is suitable for new CT's and for CT's already installed in power systems. <IMAGE>
Patent GB-2271649-A (GB)
Title: Optical fibres
Inventor: BARKER PHILIP ALFRED
IPC: C03C25/10
Filed: 1993-12-02
Abstract: An optical fibre package suitable for installation using a fibre blowing process comprises at least one optical fibre, an inner coating about said fibre, and an outer resin coating about said inner coating, said resin coating including a significant plurality of particulate inclusions at least 10  mu m across, wherein the concentration of the particulate inclusions is significantly greater at the outer surface of the resin coating than at the inner limit of the resin coating. The inclusions may be hollow glass microspheres or mica flakes. The relative absence of significant particulate inclusions at the inner limit of the resin coating improves the mechanical performance of the fibre package relative to similar known packages. The presence of significant inclusions at the outer surface of the resin coating tends, during a blowing process, to increase viscous drag effects and to reduce friction between the package and the duct into which the package is blown, thereby enhancing blowability. <IMAGE>
Patent GB-2285012-A (GB)
Title: Plastic floor coverings
Inventor: PORT ANTHONY BRIAN
IPC: D06N3/12
Filed: 1993-12-22
Abstract: The wear surface layer of a plastics floor covering is a thermoset resin such as a thermoset polyester, epoxy or carboxyl-functional acrylic resin, the resin being thermoset by a crosslinking reaction between functional groups on the resin and a crosslinking agent. In a process for forming a floor covering having a wear surface layer of thermoset resin, substantially solvent-free thermosettable resin composition is applied to a release substrate to form a thermosettable film and the film is laminated to a floor covering base. The thermosettable film is thermoset after application to the release substrate and either before, during or after lamination to the floor covering base. Alternatively, the substantially solvent-free thermosettable resin composition may be extrusion coated onto a floor covering base and subsequently thermoset.
Patent GB-2276801-A (GB)
Title: Multiple arc plasma initiating ignition/combustions in a cartridge for a projectile
Inventor: MORTENSEN ROBERT V
IPC: F42C19/12
Filed: 1994-03-22
Abstract: The injector device enables the formation of a segmented, isolated distribution of plasma arcs which are incubated to form a specified energy level of plasma discharge tailored to initiate ignition and establish efficient combustion in a particular segment of a propellant mass 48. The device includes a capillary 20 in which a conductive path comprising electrodes 24, 34, 36 is maintained. Specialized electrodes 34 provide geometric and dimensional flexibility to establish plasma arc and plasma discharge characteristics that are compatible with different zones of the propellant mass. Discharge vents 40, in combination with the electrodes, covered by a rupturable membrane 46, enable the development of a series of regions in the capillary from which plasma discharge is introduced into the propellant mass. <IMAGE>
Patent GB-2292036-A (GB)
Title: Data security monitoring system
Inventor: BRAMALL ROY
IPC: G06F1/00
Filed: 1994-08-02
Abstract: A data security system envisages the identification of a pre-authorised user of data handling equipment and the storage of both the data processed by that user and the identification of the user, for subsequent accessing by security staff. The invention may be applied to fax machines, photocopiers or any such equipment involved in data transmission or copying, whether to an individual or over a network. <IMAGE>
Patent GB-2287503-A (GB)
Title: Handle assemblies
Inventor: HARRISON PETER JAMES
IPC: E05B65/00
Filed: 1995-03-08
Abstract: A self-latching resilient plastics pivoting bolt element (12) Fig. 3 (not shown) of unitary construction for securing 8 handle 2 pivotally mounted on a base plate 3 in a closed position, is mounted on the base plate and has a striker head 15 supported by the resilience of the bolt element for reception in a recess 19 in the underside of the handle 2. The handle 2 is released by manual depression of a push button 26 to displace the striker head 15 from the recess 19. <IMAGE>