baber/WOPTO huggingface dataset:
Patent GB-2214008-A (GB)
Title: Rechargeable battery pack
Inventor: MARTENSSON NILS ERIK VILHELM
IPC: H01M50/204
Filed: 1987-12-16
Abstract: A battery pack 3 which powers an electrical device, such as a calculator, tape recorder or cellular radio, carries solar cells (7), (Fig 2), connected to the battery cells via a diode for charging the battery when the pack 3 is removed from a main casing 1 of the device. The solar cells may also supplement the battery power to the device when the pack 3 is fitted to the casing 1, and in this state additional solar cells which may be mounted on the main casing 1 may be connected to the solar cells on the pack 3 to supplement the power available to the device. <IMAGE>
Patent GB-2200988-A (GB)
Title: Temperature measurement
Inventor: FOWLER PETER HOWARD
IPC: G01K11/30
Filed: 1988-01-22
Abstract: . A system for measuring the temperature of an item comprises means (1) for supplying a beam of neutrons to expose the item (7) to the beam; means (10) for monitoring the transmission characteristics of the item to neutrons; and means (11) for obtaining from the result of the monitoring a representation of the temperature of the item. Non-scattered neutrons at different energies which have passed through the item are counted to produce an indication related to a neutron-energy dependent neutron transmission spectrum. A part of the spectrum due to a resonance resulting from an element in the item is utilised to produce the representation of temperature by comparison with measurements taken with the same element in a sample at known temperatures. <IMAGE>
Patent GB-2209019-A (GB)
Title: A document file
Inventor: GLASER JACKIE
IPC: B42F7/00
Filed: 1988-03-07
Abstract: A box-type document file comprising: a file body having a rectangular base member 2 adapted to support documents thereon, four side members 3-5 each extending from said base member at each corresponding side of said base member, a fold line 3a-5a formed at the junction between said base member and each side member, along the length of said junction, a second fold line 3a'-5a' formed on each side member, at a position spaced from said first fold line by a certain distance, said second fold line extending in parallel with said first fold line and dividing the side member into two portions, one of which forms a side wall and the other of which forms a cover member 3b-5b, when the file is folded into a box-type; a handle 7 mounted on the portion of one side member 4 between first and second fold lines; and a file closing means e.g. bands 10, adapted to maintain the file at the folded condition. <IMAGE>
Patent GB-2205385-A (GB)
Title: Improvements in a load holding and control valve, in particular for hydraulic circuits with either open or closed centre directional control valve
Inventor: STORCI ANDREA
IPC: F15B13/01
Filed: 1988-05-11
Abstract: A load holding and control valve for a hydraulic actuator enables operation with either open or closed centre directional control, and comprises a coaxially - arranged check valve 19 and a pressure - operable valve 18 having therethrough a bore 32 which may be closed by one end of a coaxial needle valve 31 whose other end is also exposed to pressure. In a further embodiment (figs. 4, 5) two such assemblies are coaxially arranged to share a single needle valve. <IMAGE>
Patent GB-2221869-A (GB)
Title: Method of continuously producing boards
Inventor: LAI CHERENG-JAW
IPC: B29C48/07
Filed: 1988-08-16
Abstract: The present disclosure is related to a method of producing boards which are made of a highly elastic material such as polystyrene. This method is characterized by that the time, labor and material used in producing the present boards are effectively reduced. The material preferably used in the present method is a mixture of PS material and a foaming agent. The mixed material is first extruded into a continual tubular element which is then inflated to expand it into a predetermined size with pressurized air; the inflated tubular element is subsequently pressed by a number of heating rollers to cause the substance to foam and the foamed upper and lower portions thereof can be meltingly bonded together as a result of heat. The product is further led through a number of cooling rollers to finish its shaping, and the edges of the continuous processed boards are evenly removed and the continuous product is then cut into small-size boards of equal length.
Patent GB-2224820-A (GB)
Title: Heat exchanger tube supports
Inventor: WALKER FRANK
IPC: F28F9/013
Filed: 1988-09-20
Abstract: Facilitating threading of flexible support tubing through narrow lanes in a tube bundle of a heat exchanger, for example, is achieved by diametrically splitting the leading end 12 of a length of flexible tubing and adhesively securing together the split end portions 13, 14 together in face-to-face relationship with a flat thin flexible bade element 15 therebetween. This provides a means for gripping and guiding the leading end in order to draw the tubing along a narrow inter-tube lane. <IMAGE>
Patent GB-2222981-A (GB)
Title: Manufacture of concrete products
Inventor: DUKE CYRIL OURY
IPC: B28B1/00
Filed: 1988-09-22
Abstract: In the manufacture of concrete slabs vibratory tables T1 and T2 are positioned at pouring stations S1 and S2. Hoppers H1 and H2 adapted to discharge measured quantities of cement mixes are respectively positioned at the stations S1 and S2, and moulds M are moved along the line in the direction of arrow A. Whilst a mould M is at the station S1 a measured first mix is dumped into the mould from the hopper H1. Table T1 is then vibrated briefly to give a good face and the desired evenness of distribution of plastics beads or granules contained in the mix. After completion of vibration the mould M moves on to the table T2 and at station S2 a smaller quantity of a second mix consisting of cement and "finings" only is dumped from the hopper H2 into the mould, following which the table T2 is vibrated for another brief period. <IMAGE>
Patent GB-2226081-A (GB)
Title: Fluid friction pump or turbine
Inventor: KIRBY STUART JAMES
IPC: F04D5/00
Filed: 1988-12-14
Abstract: Known shear force pumps and turbines comprise a number of very thin, separately manufactured plates, mounted on a hollow spindle with spaces between each pair of adjacent plates. Apertures are provided in the wall of the spindle to allow a flow of fluid from the spindle interior to atmosphere or vice versa, via the spaces between the plates. The present invention obviates the separate plates, their spacers and the spindle by forming a corresponding part which is a continuous helix. The helix is formed by flanks 22 in a tubular body 10 mounted for rotation in a casing 16. By means of studs or bolts 32 (Fig 3) the helix is strengthened and its pitch may be adjusted. <IMAGE>
Patent GB-2236250-A (GB)
Title: Ibuprofen solutions and topical compositions
Inventor: SMITH JOHN FRANCIS
IPC: A61K31/19
Filed: 1989-09-26
Abstract: Ibuprofen dissolves in benzyl alcohol to form a solution which can be admixed with a vehicle to form a stable topical composition. The solution can also comprise a pharmacologically acceptable alcohol, especially propylene glycol. The solubility of ibuprofen in propylene glycol is substantially enhanced when in the form of a solution in benzyl alcohol.
Patent GB-2224601-A (GB)
Title: Actuating device for an electrical switch
Inventor: SCHILLING JAN
IPC: E05B83/16
Filed: 1989-10-30
Abstract: In a door or lid lock, an actuating lever 18 for closing and opening an electrical switch 19 is also manually movable when the door or lid is open, independently of a latch 4 of the lock, to cause the switch 19 to be switched off whilst the door or lid is open. The switch 19 may be used to turn a light on and off or used to detect unauthorized access. 
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Patent GB-2230085-A (GB)
Title: Gas hobs
Inventor: BERTAZZONI ROBERTO
IPC: F24C15/12
Filed: 1990-02-26
Abstract: In a gas hob having a pivoted cover 10 and a safety device capable of interrupting the gas supply when the cover is closed, a gas valve 1 controls the gas supply to the gas burners and has a vertical rod 2 biased upwardly, downward movement of which rod causes valve opening, the cover 10 is provided with a cam 5 which, when the cover is open, causes downward movement of a slidably mounted inclined pin 3, which causes rotation to the position shown in Fig. 2 of a hooked member 9a against the bias of springs 13, the member 9a being pivotally mounted on a plate 6 which is fixed to said rod 2. At this position of member 9a, pressure on a push button 2a causes the rod 2 to open the valve 1, whereupon the member 9a adopts the position shown in Fig. 3 to prevent upward movement of rod 2 until cover 10 is moved from the open position. <IMAGE>
Patent GB-2236089-A (GB)
Title: Containment bags used in monolithic packing system etc
Inventor: WALTERS ALBERT EDWARD DAVID
IPC: B01F5/06
Filed: 1990-03-29
Abstract: A closed plastics containment bag (1), for receiving a cement mix(es) (2) as part of a monolithic pump packing system for strata control, during mineral winning such as coal mining (see Figs 5, 8 not shown), has at least one plastics lay-flat filling tube (8), secured to the bag (1) and communicating at an inner end (10) of the tube (8) with the bag interior (11). The tube inner end (10) constitutes a non-return valve; and the bag has suspension hooks (12) attached via plastics pads (13) welded to the bag, for hooking onto a previously filled bag. Apparatus for filling the bag comprises a filling nozzle (15) having an outlet aperture (16) for at least one flowable medium or mix, the aperture opening at an intermixing zone (17) comprising turbulance-inducing baffles (18) supported from an elongate open frame (19). The frame (19) is inserted into the bag's filling tube (8) and the mixed cement is pumped into the bag. <IMAGE>
Patent GB-2232030-A (GB)
Title: Diamond follower type unity gain amplifier provides high slew rate, bandwidth
Inventor: LEHMANN KLAUS
IPC: H03F1/48
Filed: 1990-04-27
Abstract: The amplifier provides the combination of negligible input offset voltage, high slew rate, and high bandwidth by providing first and second opposite polarity current mirror circuits 20, 21 which respond to currents flowing through first and second complementary input transistors 3, 4 to boost current available to charge parasitic capacitances C1 to C4 during fast rise times and fast fall times of an input pulse 35. The rapid charging and discharging of the parasitic capacitances eliminates degradation in the rise and fall times of an output pulse 36 produced by the unity gain amplifier. …<IMAGE>…
Patent GB-2244612-A (GB)
Title: Digitisers
Inventor: DENSHAM RODNEY HUGH
IPC: H03M1/18
Filed: 1990-06-01
Abstract: A digitiser for converting an analog signal, such as a control voltage from a potentiometer 10, into a digital code includes an A/D converter 12, a windowing processor 14 and a low-pass filter in the form of an adder circuit 16 and a divider circuit 18. The range reduction effect resulting from the windowing processor 14 is compensated by gain provided by the low-pass filter, and a look-up table 20 restores the digital code range to that provided by the A/D converter 12. <IMAGE>
Patent GB-2232668-A (GB)
Title: Antiparasitic compounds
Inventor: PERRY DAVID AUSTEN
IPC: C07D493/08
Filed: 1990-06-08
Abstract: Compounds obtainable by fermentation of Saccharothrix sp N814-103 (ATCC 59301) are active against endo- and ectoparasites. They are of formula (I):   <IMAGE>  wherein R is a residue of formula A, B or C:   <IMAGE>
Patent GB-2238165-A (GB)
Title: A photodetector device
Inventor: HISA YOSHIHIRO
IPC: H01L27/14
Filed: 1990-07-06
Abstract: The device comprises a transparent substrate 1, a p-type epitaxial layer 12 in which n-type regions 15a, 15b are formed, light absorption material 20 on alternate regions 15b, reflective electrodes 19 on each of the regions 15a, 15b and a protective film 21 on the layer 12. The electric outputs from adjacent regions 15a, 15b are the same when the radiation from a target e.g. at 1000 DEG K is detected but the outputs differ when the target has a temperature of e.g. 300 DEG K, thereby enabling the determination of whether a target is at high temperature. The device may be used in an infra red video image tracking apparatus. <IMAGE>
Patent GB-2236689-A (GB)
Title: Continuous solids/liquid separator
Inventor: BRIGNAL WILLIAM JOHNSON
IPC: B01D24/22
Filed: 1990-09-11
Abstract: A suspension of solids and water is fed at 7 to the top of a granular filter bed 2, the water filters downwards to outlet 5 and air is fed upwards continuously or intermittently through the bed to prevent accumulation of solids therein, and to enable a continuous discharge of concentrated suspension from above the bed by outlet 8. A backwash liquid inlet 6 and overflow 9 are also provided. The separator is used to concentrate the solids fraction of the effluent from an activated sludge process for recycling. <IMAGE>
Patent GB-2249623-A (GB)
Title: Solar heat storage arrangement
Inventor: PERCIVAL DAVID THOMAS
IPC: F24S23/30
Filed: 1990-10-04
Abstract: The outer skin of a building consists of transparent sheets (3) to focus sunlight which is directed down light fibres (8) and tubes onto elongated blocks (10) below the ground. The footings of the building are deepened and incorporate insulation. The heat from the blocks is thereby able to be slowly absorbed by the ground. Heat can be channelled through closable tubes (24) located in the ground. <IMAGE>
Patent GB-2242560-A (GB)
Title: Electronic still camera
Inventor: OGAWA KIMIAKI
IPC: H04N5/781
Filed: 1991-02-08
Abstract: Audio and/or video signals are recorded coaxial tracks of a magnetic disk (1) in an electronic still camera. Control circuitry (7, 8) is provided to implement playback from or erasure of a single track, all of the tracks, or a selected plurality of adjacent tracks. In the latter case, the R/W head (4) is accessed to a predetermined "starting" track, whereafter the playback or erasing operation is performed on successive tracks radially inwardly or outwardly from the starting track until a predetermined "final" track is reached. The camera comprises a plurality of operation switches, an image processing mode setting means for setting an image processing mode, and an additional image processing mode setting means for modifying the image processing mode into an additional processing mode relative to the image processing mode when at least one of the operation switches not used in the image P. <IMAGE>
Patent GB-2242937-A (GB)
Title: Propfan engine
Inventor: GRIEB HUBERT
IPC: B64D33/02
Filed: 1991-03-22
Abstract: A propfan engine 1 for an aircraft has a shroud 2 and, on the leading edge of the shroud, has one or more, preferably two, preferably pivotally mounted, separate sector-like part-annular profile parts 16a, 16b which can be moved by actuating means 18a, 18b from the shroud 2 so as to form slot-like ducts 17a, 17b between the profile parts and the shroud. This arrangement prevents dangerous flow separations on the outside of the upper shroud region and on the inside of the lower shroud region at large angles of attack of the aircraft engine. <IMAGE>
Patent GB-2244330-A (GB)
Title: Analysis using neutrons
Inventor: WARD CHRISTOPHER BRIAN
IPC: G01V5/10
Filed: 1991-05-01
Abstract: A tool suitable for borehole logging, including production oilwell borehole logging, contains a radioisotope neutron source 14, a fast neutron detector 15 and a gamma-ray detector 16. The fast neutron detector is positioned to detect neutrons as they leave the source and before they enter the material to be analysed 12. Subsequent interactions with the material of neutrons scattered by the fast neutron detector give rise to gamma-rays which are detected. Information is registered as to the time delay between detection of a neutron and detection of a gamma-ray. This may be presented simply as an energy spectrum of gamma-ray detection events selected by coincidence or anticoincidence with detection of a neutron, or a time spectrum at selected energy levels. <IMAGE>
Patent GB-2246000-A (GB)
Title: Drive circuit for electroluminescent lamp
Inventor: IHMS DAVID WARREN
IPC: H05B44/00
Filed: 1991-05-14
Abstract: A driver circuit for an electroluminescent lamp (26) comprises means (28) for detecting the light intensity of the electroluminescent lamp (26) and for providing an output signal responsive to the intensity of the lamp and means (78) responsive to the output signal for driving the electroluminescent lamp (25) at a set intensity. The detected light intensity signal is compared with a reference value in an integrator (78), the output being used via comparator (56) to control the drive at the base of a power transistor (42), which supplies an inverter (14). Reference potentiometer (88) sets a minimum level of brightness such that the lamp cannot be turned off by an operator. Potentiometer (72) then acts as a dimmer control. Applications include illumination of automotive and aircraft display panels. <IMAGE>
Patent GB-2248957-A (GB)
Title: Charging for the usage of roads by vehicles
Inventor: GREEN NORMAN CHARLES
IPC: G07B15/06
Filed: 1991-08-23
Abstract: A road pricing system in which a contact-less smart card storing prepaid credit is used in conjunction with a vehicle- borne receiver to pay for road usage at a rate dependent upon signals broadcast from transmitters within a toll area. The receiver is arranged to provide visible indication of legitimate usage, or otherwise, for policing purposes. Remaining credit may be indicated both to the vehicle driver and to an external receiver. An essential element of the vehicle engine management system may be incorporated in the smart card. The card may rest during use in a shallow recess of a housing for the vehicle-borne receiver such that when the vehicle is subjected to an acceleration of greater than a predetermined value the card may ride over the lip of the recess to inhibit further operation of the engine. A fixed toll at bridges and tunnels may be extracted from the smart card credit as the vehicle passes through an electronic gate.
Patent GB-2247906-A (GB)
Title: Structural elements
Inventor: MUELAS-MEDRANO SANTIAGO
IPC: E02D29/02
Filed: 1991-09-12
Abstract: An earth structure is provided with a plurality of rectangular facing panels (1) having moulded ridges (2) of increasing spacing and width parallel to the shorter, vertical sides (3) thereof. Some of the facing panels are secured in a first orientation and others are secured in a second orientation inverted relative to the first, to create archetectural effects. The facing panels have securing means (4, 5) for securing them to structural elements, such as counterforts, of the earth structure. The securing means (4, 5) and the vertical sides (3) of the panels are such as to permit the use of the two orientations of the panels. <IMAGE>
Patent GB-2249152-A (GB)
Title: Adjustable belt tensioning device
Inventor: SCHLERETH ARMIN
IPC: F16H7/08
Filed: 1991-09-20
Abstract: In an adjustable tensioning device comprising an eccentric adjusting member 1 pivotally mounted about a fixing bolt 6 on a fixed support 7, an eccentric working member 3 carrying a tensioning roller 4 and pivotally mounted about the eccentric adjusting member, and a spring 8 extending between the working member 3 and a base plate 5, the eccentric adjusting member 1 is rotatable relative to the base plate 5, and the base plate 5 and the fixed support 7 have interengaging means 11 for preventing pivotal movement of the base plate with the eccentric adjusting member 1. Adjustment of the relative angular positions of the two eccentric members is facilitated by means of markings 12, 13. <IMAGE>
Patent GB-2251426-A (GB)
Title: A flow control device for a fluid container
Inventor: RODD TIMOTHY
IPC: B65D49/00
Filed: 1991-12-12
Abstract: A flow control device for a fluid container comprises flow control means (2) which allow passage of fluid and limiting means (4, 5, 6) which prevent further outward flow of fluid once a predetermined total volume of fluid has passed through the fluid control means (2). The device prevents re-use of the container if refilled with a counterfeit product. <IMAGE>
Patent GB-2251275-A (GB)
Title: Locking differential
Inventor: SCHLOSSER KRAIG J
IPC: F16H48/40
Filed: 1991-12-17
Abstract: A locking differential includes a case 11 which is rotatably driven by a power source. A cross shaft 17 is mounted within the case 11 for rotation therewith. A pair of pinion gears 18 are rotatably mounted on the ends of the cross shaft 17. The pinion gears 18 mesh with side gears 13, 14 splined onto respect axle shafts 15, 16. Thus, when the case 11 is rotated, torque is transmitted through the cross shaft 17, the pinion gears 18, and the side gears 13, 14 to the axle shafts 15, 16. A locking collar 20 is journalled on one (13) of the side gears for axial movement between locked and unlocked positions. In the locked position, the locking collar 20 is connected to the side gear 13 for rotation therewith. In the unlocked position, the side gear 13 is free to rotate relative to the locking collar 20. The locking collar 20 is connected to a shifting collar 21 by a plurality of spoke portions 21b which extend through respective slots 11b formed through the case 11. Bearing means 23 are provided in each of the slots 11b for engaging and guiding the axial movement of the shifting and locking collars 20, 21. <IMAGE>
Patent GB-2262601-A (GB)
Title: Cookers
Inventor: BROWN GEOFFREY JOHN EDMUND
IPC: F24C15/02
Filed: 1991-12-19
Abstract: A cooker having a cooking chamber with a grill burner 25 for carrying out grilling operations in the chamber has a forced air supply system including a fan 15, to provide an air flow through the door 16 of the chamber to maintain the outer surface of the door at an acceptably low temperature. The air enters a space 19 between inner and outer door panels via a series of holes 19a and exits from the top of the door. The door also has a guide for directing air flow from fan 15, into the space 19 when the door is in a partly opened position during a grilling operation in the chamber. Beside keeping the outer surface of the door at the acceptably low temperature, the air flow leaving the door space also retains the flow of hot gases from the chamber in a path that lies close to the front of the cooker. <IMAGE>
Patent GB-2251731-A (GB)
Title: Preventing failure of resistors due to surges of electrical energy
Inventor: BLOOM TERRY R
IPC: H01C7/22
Filed: 1992-01-02
Abstract: Conductive material 11, 12 is applied to a resistor 10 to provide controlled shunting of current from localised regions of the resistor that would otherwise destructively fail during surge. Various embodiments are disclosed having varying resistance, dimension and placement. The continuity of the original resistor material is not altered, nor is the current diverted in such a way as to create new localised regions that might destructively fail. The resistors so designed have application in lightning surge environments, power supply and power input circuitry and other applications where potential short duration surges might otherwise cause destructive failure of standard resistors. <IMAGE>