baber/WOPTO huggingface dataset:
Patent GB-2248910-A (GB)
Title: Electrical operation of fluid-pressure devices
Inventor: BAXTER MICHAEL DAVID
IPC: F15B13/043
Filed: 1991-08-28
Abstract: A fluid control valve 19, 21 comprises a magnetisable coil within which is an armature 17, 27 constrained in the unenergized state by a spring 16 to keep closed on a pressure source port 14, 26 a valve member 15 at one end of the armature and to keep open from a low-pressure port 33 a valve member at the opposite end of the armature, said valves 19, 21 each having a third port 12, 22 and forming a 2-position 3-way valve. The armature can be moved to connect the third port to either of the other two ports, or can be made to vibrate against the spring under the influence of a PWM electrical input current applied to the magnetisable coil to open the normally closed valve and close the normally open valve in proportion to the width of the electrical pulses thereby increasing in similar proportion, the pressure communicated as an output via the third port. <IMAGE>
Patent GB-2252324-A (GB)
Title: Stabilizer composition
Inventor: LEIPER HILDA ADAMS
IPC: C08K5/00
Filed: 1991-12-19
Abstract: Stabiliser compositions comprise (a) a phenolic or amino antioxidant (c) a metal deactivator and at least one of (b) a neutralizer and (d) an antioxidant which is a phosphorus containing compound or a thioether or disulphide. The compositions stabilise polymers such as polyolefins against oxidation. Compositions of (a), (b) and (c) and optionally (d) show synergistic oxidation resistance, while compositions of (a) (c) and (d) increase the tear strength of polyolefin films. The phenolic antioxidant is preferably sterically hindered. The amino is preferably a secondary aromatic amino or a hindered N-heterocyclic compound. The metal deactivator is preferably an hydrazide, oxalamide or a cyclic diazole or triazole, or a hindered phenol. The neutraliser may be a base, e.g. a tertiary amino, a piperidine, an inorganic basic oxide or hydroxide or a salt of a weak acid, e.g. calcium stearate, or preferably an inorganic an ion exchanger in basic form, e.g. magnesium aluminium talcite. The phosphorus compound may be a phosphonite or phosphite ester.
Patent GB-2255243-A (GB)
Title: Dual battery power source apparatus for a vehicle
Inventor: ISHIDA HIDEO
IPC: H02J7/14
Filed: 1992-04-22
Abstract: The apparatus has a first battery 2 for operating an engine starter system 4, a second battery 3 for operating other loads 5, and a charging controller 7 responsive to the battery voltages and controlling the duty cycles of first and second charging switches 61, 62 so that the first battery 2 is charged with priority over the second battery 3 except if, when the voltage of battery 3 is less than that of battery 2, the voltage of battery 2 is above a lower limit corresponding to the minimum required to operate starter 4. The probability of always being able to restart the engine is thus increased. The switches 61, 62 are turned on alternately with adjustable duty cycles D1, D2 that are complementary, i.e. (D1 + D2) = 1, (Fig 3). Switches 61, 62 may be relays, or MOSFETS, or three-phase SCR switches forming respective rectifier bridges with a common diode trio 13, (Figs 5, 6, 7). The alternator field winding energisation may be controlled by comparison of the lower of the battery voltages with a reference. Alternatively a permanent magnet alternator may be used, switches 61, 62 being held off if the battery voltages exceed an upper limit value, (Fig 7). <IMAGE>
Patent GB-2266499-A (GB)
Title: Hydraulic power-assisted steering system with input force sensor.
Inventor: WISE JOHN ARTHUR
IPC: B62D6/00
Filed: 1992-04-23
Abstract: The system comprises a standard rack and pinion steering system wherein a piston 36 on the intermediate rod 18 is acted on by a pressure difference between two pressure chambers 40, 41, the pressure difference being controlled in a closed loop system by a valve 64 which in turn is controlled by a control unit 66 in response to signals from a steering column torque sensor 60, a vehicle speed sensor 62 and a pressure difference sensor 64. In a modification (Fig. 4) the pressure sensor is replaced by load sensors (64B) in the tie rods 16, 17 and a steering box and drag link may replace the rack and pin ion. The system obviates the need for highly accurate manufacture of the steering valve. <IMAGE>
Patent GB-2259092-A (GB)
Title: Method for making a prepreg of an epoxy resin impregnated fibreglass substrate
Inventor: TAKADA TOSHIHARU
IPC: C08G59/40
Filed: 1992-08-25
Abstract: A method for making a prepreg of an epoxy resin impregnated fiberglass substrate for preparing an electrical laminate comprises preparing a resin mixture of an epoxy resin having at least two epoxy groups, a curing agent consisting of dicyandiamide and a halogenated diaminodiphenylmethane derivative of the formula   <IMAGE> [wherein R1 stands for a hydrogen atom, or a lower alkyl group, R2 stands for a halogen atom, or a lower alkyl group, each of R3 and R4 stands for a lower alkyl group, a hydrogen or halogen atom, and also at least one of R3 and R4 stands for a halogen atom], and a catalyst for effecting the reaction between the epoxy resin and the curing agent, diluting the resin mixture in a solvent to form a resin varnish, impregnating a fiberglass substrate with the varnish, and then drying to partially cure the resin impregnated substrate, so that a B-stage cured prepreg is formed. Uses Printed circuit board substrates.
Patent GB-2260314-A (GB)
Title: Device for changing reels of strip material on a pr oduction machine
Inventor: COCCHI LORENZO
IPC: B65H19/12
Filed: 1992-10-06
Abstract: A device for changing reels of strip material includes a traction device 3 for unwinding a first strip 5 off a reel 6 on a supporting spindle 8. A standby reel 13 is supported on two rollers 35 and a swing arm 20 supports a powered disk with suction cups 26 and a central locating spindle (not shown) for partial insertion into the core of reel 13. As the first strip runs out, the standby reel 13 is made fast with the disk by the suction cups 26, the disk is rotated by motor 25 so as to wind a strip off the standby reel and through a guide device 11 and into the traction device 3, and the swing arm 20 pivots about B to load the standby reel 13 on to the axially-sliding supporting spindle 8 in place of the empty reel. <IMAGE>
Patent GB-2262808-A (GB)
Title: Gradient coil system
Inventor: WESTPHAL MICHAEL
IPC: G01R33/385
Filed: 1992-12-17
Abstract: The sensing volume 1 in an MRI system is moved to the end of the magnet bore for improved access by use of asymmetric XY saddle or streamline coils 20 (only Y coils shown) and asymmetric Z ring coils (see fig. 5). Active shielding may be used, which also alleviates net torques, and the main field may be generated by a "slice" type electromagnet. <IMAGE>
Patent GB-2262769-A (GB)
Title: Antitheft type power door lock system.
Inventor: YUGE MASAAKI
IPC: E05B65/12
Filed: 1992-12-22
Abstract: The door lock system comprises a door latch device 104, having a locking/unlocking lever 102, and an electric actuator including a worm wheel 3 driven by a reversible electric motor 1 to rotate in both directions from a neutral position. An operation lever 6 is linked to the (un)locking lever 102 to assume locking and unlocking positions when the lever 102 assumes lock and unlock positions respectively. The operation lever 6 has a projection 6b with which a projection 3a on the worm wheel 3 is engageable to pivot the lever 6 to the locking and unlocking positions upon rotation of the work wheel. An antitheft lever 9 has an engaging pin 9b slidably engaged with a cam groove 4 in the worm wheel 3. In response to the rotation of the worm wheel, the antitheft lever 9 is pivoted between a cancelling position wherein it is kept away from the travelling path of the operation lever 6, and a theft protection position, wherein at least a portion of the antitheft lever 9 is positioned on the travelling path of the operation lever 6. <IMAGE>
Patent GB-2269311-A (GB)
Title: Outdoor cooking device
Inventor: LINGWOOD ANTHONY MICHAEL
IPC: A47J37/07
Filed: 1993-01-08
Abstract: An outdoor cooking device 10 e.g. a barbecue comprises a heat source 28, means 30 for supporting the food to be cooked above the heat source 28, a baffle 32 interposed between the heat source 28 and said food supporting means 30, the baffle 32 being located and shaped so as to both prevent drippings from the food being cooked from falling on to said heat source 28 and collect said drippings together above the heat source 28, a receptacle 24 disposed below the heat source 28, and means 38 to channel the drippings collected by the baffle 32 to the receptacle 24 without contacting the heat source 28. Receptacle 24 is removable. Further described is an outdoor cooking device (10, fig.2) which comprises a heat source (28 fig.2) and an apertured baffle (32, fig.2) above the heat source (28 fig.2) the baffle (32 fig.2) being located and shaped so as to concentrate the heat generated by the heat source (28 fig.2) in the region of the aperture (42 fig.2). The heat source of the cooking device may be charcoal or gas.
Patent GB-2262694-A (GB)
Title: Electric element assembly
Inventor: HUNT ANDREW
IPC: H05B3/82
Filed: 1992-06-24
Abstract: This invention provides an electric element assembly for use with an electric kettle or similar liquid heating apparatus. The invention provides an assembly which avoids the need to connect a central portion of the element sheath (16) to a backplate, e.g. by brazing, by thermally connecting temperature sensitive cut-out means e.g. a bimetallic strip (10), to the sheath (16) through a sleeve or liner (24). Thus, heat generated by a wire (14) is conducted to the bimetallic strip (10) which deflects to break controls (20, 22) to cut the electricity supply to the wire (14).
Patent GB-2275342-A (GB)
Title: Apparatus and method for measuring the sticking tendency of drilling mud.
Inventor: MEETEN GERALD HENRY
IPC: G01N33/28
Filed: 1993-02-19
Abstract: A device for measuring the sticking tendency of drilling mud M comprising: a container 10 for the mud; a porous surface 16, 18 in the container and contacted on one side by the mud; a sensing body a spherical or part-spherical surface 30 within the container and adiacent the porous surface; means 32 for rotating the sensing body; means in the drive 32 for measuring resistance to rotation of the sensing body; and means for forcing the mud through the porous surface so as to build a mud cake thereon and around the sensing body, characterised in that the spherical or part-spherical surface 30 has a radius of curvature of less than about 4 inches. This arrangement allows repeated measurements on a single sample of mud. The forcing means is a supply of pressurised nitrogen which enters the cell 10 via a line 38. <IMAGE>
Patent GB-2277272-A (GB)
Title: Golf practice device
Inventor: PYCROFT MICHAEL ANTHONY
IPC: A63B69/36
Filed: 1993-04-17
Abstract: The golf practice device comprises an elongate plastics element having a straight central portion (10) attached at its opposite ends to arcuate outer portions (12, 13) which curve towards the player. The straight central portion (10) indicates a parallel line (11) on which the player should place his feet, and the arcuate outer portions indicate the path along which he should swing the head of the club to hit the ball. <IMAGE>
Patent GB-2268661-A (GB)
Title: Reset control network for a video signal encoder
Inventor: ACAMPORA ALFONSE ANTHONY
IPC: H04N21/236
Filed: 1993-07-05
Abstract: A video signal encoding system includes a signal processor (300), for segmenting encoded video data into transport blocks, having a header section (314), a packed data (316) section and reset control apparatus (110) for releasing resets of system components, after a global system reset, in a prescribed non-simultaneous phased sequence to enable signal processing to commence in the prescribed sequence. The phased reset release sequence begins when valid data is sensed as transiting the input data lines. As described, valid data relates to an I frame which represents a coded actual (non-predicted) image at the beginning of a group of picture frames. The remaining frames of the group being coded according to a forward or bidirectionally motion compensated predictive method. <IMAGE>
Patent GB-2284529-A (GB)
Title: Ploughshares for clay soil
Inventor: MATTHEWS KENNETH GORDON
IPC: A01B17/00
Filed: 1993-11-24
Abstract: A furrow for a plough comprising a share and a mouldboard, has at least one soil disruption member 3 protruding from the share or mouldboard, the soil disruption member being arranged to impart a substantial degree of disruption to ploughed soil passing across the surfaces of the share and the mouldboard. Also disclosed is a method and means for converting existing furrows to the improved furrow. <IMAGE>
Patent GB-2273846-A (GB)
Title: Head mounted display apparatus
Inventor: AOYAGI KOJI
IPC: G02B5/02
Filed: 1993-12-23
Abstract: A head-mounted display apparatus having an optical system which is of the back-irradiation type comprising at least two optical systems each including a light source (40L,R), a LCD through which the light from the light source is passed (41L,R), a reflecting plate which reflects the light passing through the LCD (43), a screen on the back side of which the reflected light from the reflecting plate is focused to form an image (44) and a lens by which the light from the screen is focused to form an image at a viewing point (45L,R), and a head-mount type member for supporting the two optical systems which are opposed to left and right eyes. According to the preferred embodiment, interference and distortion in the projected images arising from the image of the edges of the LCDs is substantially reduced. <IMAGE>
Patent GB-2275450-A (GB)
Title: Boat top
Inventor: LARSSON KJELL TORSTEN VILHELM
IPC: B63B17/02
Filed: 1994-01-12
Abstract: The invention relates to a convertible boat top construction. The construction enables the top to serve selectively as a roof when raised, or as a deck when lowered. The top construction comprises a roof section (1) carried by a pair of swinging arms (2). The arms enable the roof section (1) to be moved from a raised position in which it serves as a roof, to a lowered position in which it serves as a deck. Preferably, the top construction comprises a rear wall section (3) suspended from the rear edge of the roof section (1). The rear wall section consists entirely or partly of a window that can be opened or closed when the roof section (1) serves as a roof and is folded under the roof section when it serves as a deck. <IMAGE>
Patent GB-2291321-A (GB)
Title: Flexible electrically heatable bottle
Inventor: VINT REGINALD CHARLES DAVID
IPC: A47C21/04
Filed: 1994-07-05
Abstract: A bottle containing an immersion heater which may substitute for a hot water bottle or act as a seat warmer is filled with glycerol or a liquid glycol. An internal frame is provided for supporting the heating coil to prevent contact with the bottle sides. <IMAGE>
Patent GB-2280985-A (GB)
Title: Camera operation control integrated circuit
Inventor: SAITO HIROYUKI
IPC: G03B7/08
Filed: 1994-07-29
Abstract: A digital circuit section 21 and analog circuit 23, 24 sections are constructed on a single C-MOS integrated circuit 20, a regulator 22 is provided therein, a power supply from a power supply terminal is directly supplied to the digital circuit unit 21, and a power supply controlled by the regulator 22 is supplied to the analog circuit unit. Furthermore the output from the regulator may be ON/OFF-controlled by a switch. Deterioration of the performance of the analog circuits while the digital circuits are operating can be prevented by separating the power supply to the digital circuits from the power supply to the analog circuits. Since the regulator 22 is built into the integrated circuit 20, the number of externally provided components is reduced, enabling the camera to be made smaller. <IMAGE>
Patent GB-2293216-A (GB)
Title: Shaft seal
Inventor: BOWERS NORMAN KENNETH
IPC: F16J15/16
Filed: 1994-08-19
Abstract: Sealing apparatus for a rotating shaft 100, comprising a housing 300, one or more sealing elements contained in the housing, a sleeve 500 fixed to and rotatable with the shaft and providing a cylindrical surface against which the sealing elements act, in which the sleeve is formed with one or more cavities 604 extending over at least part of the length of the sleeve and opening into a space in communication with the fluid to be sealed, the arrangement being such that rotation of the shaft causes fluid to flow into and out of the or each cavity, to provide a cooling effect on the sleeve. <IMAGE>
Patent GB-2294195-A (GB)
Title: A cooking apparatus
Inventor: ZANNETOS ZAN MICHAEL
IPC: A47J37/04
Filed: 1994-10-17
Abstract: A cooking apparatus comprising: a rotatable skewer (2) for supporting a food product (6) to be cooked; slicing means (5) for cutting slices from the food product (6); and a motor (9) for driving the slicing means (5) and for rotating the skewer (2). <IMAGE>
Patent GB-2281526-A (GB)
Title: Method of casting
Inventor: BURDETT SAVILE
IPC: B22D27/04
Filed: 1993-04-30
Abstract: A method of casting an article in a thermosetting material utilising a mould (M1) having a casting cavity (1a) corresponding to the configuration of the item to be cast, and a reservoir cavity (6, 7) communicating with the casting cavity (1a), the method comprising introducing molten thermosetting material into the casting cavity (1a) and the reservoir cavity (6, 7), permitting cast material in the casting cavity (1a) to initially cool and at least partially solidify whilst applying heat from an extrinsic source (8, 9, 9A) to the material in the reservoir cavity (6, 7). <IMAGE>
Patent GB-2284033-A (GB)
Title: Cable hose handling chain
Inventor: HART ANTHONY JOHN
IPC: F16G13/16
Filed: 1994-11-16
Abstract: In combination, a cable/hose retention clip 30 and a chain link of a cable/hose handling chain, the chain link having a body including a top wall 13 spaced from an opposed bottom wall 15 by a sidewall 12 to define a compartment 17 for housing a cable/hose and having an open side opposite said side wall through which the cable/hose may be inserted into the compartment, the clip 30 being insertable into the compartment through said opening to an engaged position whereat the clip releasably engages with the top and bottom walls, wherein the clip is moulded from plastics and has a relatively rigid body portion 31 and a pair of relative flexible resilient arm portions 32 depending therefrom, the body portion 31 being arranged to extend between the top and bottom walls to close said open side when the clip is in said engaged position, said arm portions having latch formations 37 co-operable with latch formations 38 on the top and bottom walls for restraining withdrawal of the clip through said open side from the engaged position, the rigid body portion 31 being connected to the top wall and bottom wall by inter-engaging formations 140, 141 which co-operate to restrain outward displacement of the top and bottom walls 13, 15 from one another. <IMAGE>
Patent GB-2283897-A (GB)
Title: Animal feeder
Inventor: ALLEN PETER WILLIAM
IPC: A01K5/02
Filed: 1994-11-22
Abstract: A feeder 1 for animals, comprises a hopper 2, an outlet 4 for dispensing feed, a feed tray 5, and a dispensing device 6 which depends from the hopper 2 and is operable by an animal to move a plate 7 from a position normally obstructing the outlet 4 to a position in which feed can flow through the outlet 4 to the tray 5. A mechanism for adjusting the size of the outlet is disclosed, consisting of overlapping metal plates 9, 10. <IMAGE>
Patent GB-2298072-A (GB)
Title: Distribution apparatus
Inventor: MARCHINI BARRY ALLEN
IPC: G07D3/06
Filed: 1995-02-15
Abstract: Apparatus (10) for distributing or sorting articles, e.g. coins, comprises receiving means (12) which is pivotable in a controlled manner relative to delivering means (14) which is stationary, the receiving means (12) being shaped as a funnel with an open, comparatively large upper end which is always located below an inlet and with an open, comparatively small lower end (20) which is selectively locatable above different outlets (26b) at the bottom of an arcuate trough (30) presented by the delivering means (14).
Patent GB-2287462-A (GB)
Title: Reinforcing glass fibres containing colouring agents
Inventor: CAURAND DANIEL
IPC: C03C3/091
Filed: 1995-02-28
Abstract: Glass fibres, especially for reinforcing organic materials and having an alumino-silicate glass composition with a low content of alkalis including alkaline earths, are characterised in that the composition also comprises a combination of colouring agents formed from iron oxides, cobalt oxide and, optionally, chromium oxide, the said combination enabling the fibres to be dyed in bulk. The fibres according to the invention have more neutral tones and the composites formed from said fibres more natural tints, being characterised by a reduction in certain colorimetric values.
Patent GB-2288341-A (GB)
Title: Catalysts for the shift reaction
Inventor: WARD ANDREW MARK
IPC: B01J23/86
Filed: 1995-03-31
Abstract: Catalyst precursor pellets, suitable for use, after reduction, as high temperature shift catalysts, comprising oxides of iron and chromium and including particles having an aspect ratio of at least 2 and an average (by weight) maximum dimension of at least 500 nm. The particles are preferably acicular and particularly are acicular iron oxide, alumina, or zinc oxide particles.
Patent GB-2294585-A (GB)
Title: Thin film electroluminescent device
Inventor: STEVENS ROBERT
IPC: H05B44/00
Filed: 1995-08-08
Abstract: A TFEL device (12) utilising a luminescent dopant concentration > 0.5 Wt%, such that high intensity operation may be realized via high frequency drive signals (corresponding to those used for active matrix addressing of arrays of TFEL pixels) is disclosed. Also disclosed is a method of manufacturing such a device with integral drive and addressing circuitry, comprising growing a TFEL device (12) onto the drain or extended drain of a MOSFET (10) (and/or onto the electrode of a shunt capacitance) and providing the TFEL device with top (12a) and bottom (12b) contacts, grounding the source of the MOSFET and providing a high voltage supply line to the top contact (12a) of the TFEL, such that when the MOSFET is turned on, emission from the TFEL device is initiated, said emission being capable of being turned on or off by application of a small voltage signal to the gate (10c) of the MOSFET. The active phosphor layer 12e is of manganese-doped zinc sulphide. <IMAGE>
Patent GB-2291605-A (GB)
Title: A nebuliser and nebuliser control system
Inventor: STIMPSON PHILIP GEORGE
IPC: B05B17/06
Filed: 1991-11-12
Abstract: A nebuliser has a transducer (JP2, Figure 13, not shown) arranged to excite fluid L in a chamber 50c. A transducer drive system (A, B, C, D, E, also Figure 13) is arranged to drive the transducer with a high frequency drive signal, thereby causing physical vibrations of the fluid to effect atomisation. The drive system includes a step-up transformer (T1, Figure 13) comprising primary and secondary coils of which the secondary coil is connected to the transducer. <IMAGE>