baber/WOPTO huggingface dataset:
Patent GB-2173962-A (GB)
Title: Battery charger with battery voltage and temperature sensing
Inventor: MOORE DEREK V
IPC: H02J7/00
Filed: 1986-04-14
Abstract: The system is designed to charge a battery 11 using two charging terminals 12, 14 and sense battery voltage and temperature through the charging terminals. In measuring the temperature of the battery, the battery is electrically isolated from the sensing circuit by a diode 16 during a portion of the charging cycle where the charging voltage is less than the battery voltage. Should the temperature of the battery, as measured, increase to a predetermined upper limit, the charging cycle is switched to a trickle charge on the battery. The battery voltage is measured at the instant when charging voltage exceeds the battery voltage to give a true indication of the recharged potential of the battery. When the sensed battery voltage is at the desired level, charging is switched to trickle charge. A comparator 86 establishes appropriate time windows for temperature sensing by a comparator 84 and a Wheatstone bridge circuit including resistors 56, 58, 64, 66 and thermistor 18. A comparator 98 similarly establishes windows for battery voltage sensing by comparator 96. Diode 16 may be replaced by a diode (22), (Fig. 2), and parallel FET (20) to allow controlled battery discharge through terminals 12, 14. LED 134 is lit to indicate that the circuit is ready to accept a battery pack 10 and to indicate that the unit has switched to trickle charging. <IMAGE>
Patent GB-2190347-A (GB)
Title: Dumper truck
Inventor: MASON LEONARD WILLIAM
IPC: B60P1/34
Filed: 1986-04-18
Abstract: A dumper truck has a chassis 1,2 and a support 5 for a pivotable hopper mounted on the chassis part 1, the support being mounted on the chassis part 1 so that it may be raised and lowered to enable the hopper to be emptied from a height above the ground directly into a skip or lorry. The raising and lowering means comprises an hydraulically operated scissor lift mechanism 6. In order to preserve stability when tipping from a height, it may be deemed necessary to provide additional counterweighting at the rear of the chassis 1,2 to lower the centre of gravity of the dumper truck. For operator safety, a flexible curtain is provided to impede access to the space beneath the support means and the chassis 1,2 when the support means is raised. <IMAGE>
Patent GB-2177294-A (GB)
Title: Writing or painting instrument
Inventor: KONOSE YOSHIOMI
IPC: A46B11/02
Filed: 1986-05-29
Abstract: A press-action writing or painting instrument enables ink to flow to its brush-like point through a pressing action of a cap 7 attached to a rear end of an inner shaft 8. The latter is slidably received in an outlet shaft 1 an inner diameter of which is so determined as to come extremely close to an outer diameter of the inner shaft to ensure a neat sliding movement of the inner shaft without any looseness, while air in a space defined by these outer and inner shafts escapes outside the instrument through slots 19a or apertures 18 provided in the outer shaft and/or the inner shaft, so that a smooth pressing operation of the inner shaft is possible. <IMAGE>
Patent GB-2187051-A (GB)
Title: Electrical terminal mounting
Inventor: EVANS WILLIAM ALUN
IPC: H01R13/40
Filed: 1987-02-17
Abstract: A mounting for electrical terminals is particularly intended for use in apparatus for measuring thermo-electric e.m.f. where the cold junction terminals must be isothermal. Internally metallised holes are provided in a block 24 of beryllium oxide formed by pressing and sintering, enabling the terminals to be mounted in good thermal contact with the block. Beryllium oxide is electrically insulating and has high thermal conductivity so that local thermal variations are rapidly redistributed. In a first modification the effect is enhanced by means of a copper backing layer 36 soldered to block 24. In a second modification the mounting is partially isolated from the environment by means of a layer 40 of ceramic or other thermal insulator applied either to block 24 or to copper layer 36. Consequently the terminals are maintained at closely equal temperatures. <IMAGE>
Patent GB-2189784-A (GB)
Title: Aromatic compounds
Inventor: MAIGNAN JEAN
IPC: A61K8/00
Filed: 1987-04-03
Abstract: Compounds of the formula:… …<IMAGE>… in which:… n is 0 or 1;and … …  1) when n is 1… R' is hydrogen or a C1-4 alkoxy group;… R'' is hydrogen, an OH group, a C1-4 acyloxy group, a C1-4 alkoxy group or an amino (-NH2) group;… or R' and R'', taken together, form an oxo (=O), methano (=CH2) or hydroxyimino (=N-OH) group;… R1 is a -CH2OH group or a -COR10 group, wherein… R10 is hydrogen, a -OR11 group or a… …<IMAGE>… group, wherein… R11 is hydrogen, a C1-20 alkyl group, or a monohydroxyalkyl, polyhydroxyalkyl, aryl or aralkyl group, any of which may optionally be substituted, or a sugar residue or a… …<IMAGE>… group; wherein… p is 1, 2 or 3;… r' and r'' each are hydrogen, a lower alkyl group, or a monohydroxyalkyl group optionally interrupted by a heteroatom, a polyhydroxyalkyl group, an aryl or benzyl group, any of which may be optionally substituted, an amino acid residue or an amino sugar residue or r' and r'' together complete a heterocyclic ring;… R2, R3, R4, R5 and R6 each are hydrogen, an -OH group, a C1-12 alkyl group, a cycloalkyl, cycloalkenyl or phenyl group, any of which may be optionally be substituted, or a group of formula: … …  (i) -X-C6H5, …  (ii) -X-R12, or …  (iii) -NHCOR13 … in which:… X is -O-, -S-, -SO-, -SO2- or -OCO-,… R12 is a lower alkyl or fluoroalkyl group, and R13 is an alkyl or phenyl group,… with the proviso that at least one of the groups R2 to R6 is other than hydrogen; and… R7, R8 and R9 each are hydrogen or a methyl group, or R7 and R9, taken together, may form, with the benzene nucleus to which R7 is attached and the two carbon atoms between the benzene nucleus and R9, a naphthalene ring;… with the proviso that R7 is not hydrogen or a methyl group when R4 is a methyl group or an OH group, when R2, R3, R5 and R6 each are hydrogen or when R6 is a hydroxyl group; and …  2) when n is 0… R' is hydrogen; and… R'' is an OH group; or… R' and R'', taken together, form an oxo (=O) group;… R1 is a -CH2OH, -CH=O or -COOR11 group, wherein R11 is hydrogen or a lower alkyl group;… R2 and R3, which may be identical or different, are each a hydrogen or -C3-6 alkyl group;… R5 is either … …  (i) a cycloalkyl or C3-6 alkyl group and, in this case R4 is a lower alkyl group, a hydroxyl group or an alkoxy group, or …  (ii) hydrogen and, in this case, R4 is a lower alkyl group; … R6 is hydrogen;and… R7 is hydrogen or a methyl group; … or a salts thereof, including the optical and geometrical isomers of said compound, are useful in human and veterinary medicine and in cosmetics.
Patent GB-2190775-A (GB)
Title: Preventing unauthorised access to information
Inventor: RAGNAR STEN
IPC: G06F21/83
Filed: 1987-04-30
Abstract: In a method of preventing unauthorised access to information inputted by key depressions on a keyboard (21), e.g. PIN codes inputted in a cash dispenser, and transferred from the keyboard in the form of electric signals on electric lines (d0-d3) to a computer (23) processing the information, the computer (23) receives signals from the lines during specific receiving periods, and between these periods the computer transmits, on the said lines, signals which simulate the depressions. The duration and frequency of these simulated key prevent an unauthorised line tapper from distinguishing simulated key depressions from genuine depressions. <IMAGE>
Patent GB-2191379-A (GB)
Title: Animal feed block and packaging method for block
Inventor: FINDLEY JOHN E
IPC: A23K1/00
Filed: 1987-05-29
Abstract: An animal feed supplement in solid block form may be made by:   (a) admixing an aqueous feed solution with solidifying and nutrient ingredients to prepare an aqueous feed supplement liquid; (b) placing a plastic bag formed of a water soluble plastic film into e.g. a vertical-walled form as a mold; (c) pouring the aqueous feed supplement liquid mixture into the plastic bag; (d) storing the mold containing the feed supplement to permit its contents to solidify; and (e) stripping the vertical-walled form from the resultant solid block to recover a solid block entirely covered by said plastic film.   A solid feed supplement has total water content 10 to 35 weight percent and comprises sugar, protein, sodium carbonate, sodium bicarbonate and magnesium oxide. The sugar source may be molasses, whey, pulp and paper industry (lignin sulfonate solution) wastes or corn steep liquor.
Patent GB-2193294-A (GB)
Title: Sliding splined joint
Inventor: FISHER LESLIE
IPC: F16D3/58
Filed: 1986-05-19
Abstract: A sliding splined joint comprising a shaft (10) and sleeve (11) and intermediate members (14) each engaging a groove in the sleeve and connected to the shaft by way of a resilient element (18) so that the joint is torsionally resilient.
Patent GB-2210949-A (GB)
Title: Disc spring
Inventor: ATKINSON WILLIAM FREDERICK
IPC: F16F1/366
Filed: 1987-10-10
Abstract: The discs 1 of a disc spring are of resilient plastics material and have an integral stop 3 to limit axial distortion and so prevent cracking. As shown, discs of different thickness can be assembled into a stack to produce a spring of progressive or increasing rate. <IMAGE>
Patent GB-2201791-A (GB)
Title: Transducer signal conditioner
Inventor: WELSH BARRY LASCELLES
IPC: G01L1/22
Filed: 1988-02-17
Abstract: A temperature compensation circuit for use with a resistance-bridge type pressure transducer (1), particularly useful for wind tunnel experiments. In one embodiment, a differential amplifier (7) senses the transducer output and produces an output signal referenced to an intermediate voltage generated by an operational amplifier (8). The voltage across a sense resistor (R1) connected between the transducer and a power supply (2) varies in accordance with transducer temperature. These voltage variations are applied to the output signal by means of a summing amplifier (10) to compensate for thermal offset in the transducer output. Thermally-induced sensitivity variations in the transducer output may be further compensated by incorporating a thermally sensitive resistor (R3) placed in proximity to the transducer and a gain adjustment amplifier (12). In a digital embodiment, the transducer output and sense resistor voltage are digitised and fed into a signal processor (16) which corrects the transducer output to compensate for thermal offset sensitivity variation using calibration data from a digital memory (15).
Patent GB-2220023-A (GB)
Title: Glazed window unit
Inventor: ENSOR PAUL ROBERT
IPC: B44C5/08
Filed: 1988-06-21
Abstract: A multi-glazed window unit comprises a leaded-light panel 1 protected on one or both faces thereof by a sheet of clear glass 3 and spaced therefrom by peripheral spacer 2, and sealed by adhesive compound 4. The adhesive sealing compound 4 may be coated by a protective layer of metal foil 5. Such a window unit is manufactured by removing an existing leaded light from its original mounting frame. <IMAGE>
Patent GB-2226661-A (GB)
Title: Watch
Inventor: HO WAN-CHING
IPC: G04B47/00
Filed: 1988-07-28
Abstract: A timepiece is disclosed which includes an integral torch (9-11). A compartment 6 holds a battery and a reflector 9 and bulb 10 are located below a window 11. An on/off switch 13 is provided. <IMAGE>
Patent GB-2211111-A (GB)
Title: Micropipette and method of operation
Inventor: SLATER JEFFREY
IPC: G01N35/00
Filed: 1988-10-06
Abstract: A micropipette comprises a tube (20) open at one end and closed at the other end, the open end of the tube having a small bore up which liquid rises by capillary action when the open end of the tube is dipped in the liquid. A heater (18) or cooler controls the temperature of the internal tube volume enclosed by the liquid in the tube, whereby, control of the temperature affords oontrol of the amount of liquld drawn into the tube and/or dispensed from the tube. <IMAGE>
Patent GB-2225319-A (GB)
Title: Regeneration of amine
Inventor: HERRIN JOSEPH PEARMAN
IPC: C07C203/10
Filed: 1988-11-26
Abstract: Amines e.g. alkanolamines are used to remove H2S and CO2 from natural gas by an absorption method. The chemical reaction between amino (called 'lean amine' at the start of the reaction) and H2S and CO2 generates heat. The purified natural gas flows out from the top of the absorption chamber and the reacted amine (also called 'rich amine') flows out the bottom and is generally higher in temperature than the inlets. 'Lean amine' is regenerated by reducing the pressure and adding heat to the 'rich amine' in a low pressure still fitted with a reboiler at the bottom. CO2 and H2S pass out the top of still with hot steam generated in the reboiler. This overhead mixture of steam, H2S and CO2 (called overheads) is higher in temperature than the feed in the still. In the present invention the heat associated with the 'overheads' is utilized to furnish heat to a sequence of heat exchangers through which the 'rich amine' is passed before reaching the low pressure still for regeneration.
Patent GB-2230318-A (GB)
Title: Protective blanket
Inventor: WALTERS CHARLES MICHAEL
IPC: F16L1/24
Filed: 1989-01-18
Abstract: For use in protecting an underwater pipe line or cable there is provided a blanket 1 comprising two opposing weighted edge regions 3 and a row 5 of elongate members 7 flexibly coupled between the weighted edge regions 3, the row 5 of elongate members 7 being arranged parallel one to another and to the edge regions 3 and being substantially end aligned, each elongate member 7 comprising a hollow plastics tube of substantially constant cross-section, the elongate members being coupled together by at least two flexible members 9 passing through the elongate members 7 substantially perpendicular to the edge regions 3 such that two adjacent members 7 may flex with respect to one another. <IMAGE>
Patent GB-2216317-A (GB)
Title: Vehicle antitheft device
Inventor: CARDINI UMBERTO
IPC: B60R25/045
Filed: 1989-02-17
Abstract: The device is characterised by comprising:   a) a diversification of power supply points 2, 3, 4 in order to allow the voltage of at least one of such points to be present when all the other voltages are lacking due to defective contacts, said voltage being able to keep the antitheft circuit 1 inactive particularly during vehicle running, and which would otherwise be activated by the voltage originating from said defective contacts; b) a delay circuit (67, 69 Fig 2, not shown) for delaying, even when all the power supply signals are lacking, the operation of a device on which the antitheft circuit acts to shut off the engine, said circuit not acting however on acoustic and/or optical warning devices to which the antitheft device is connected so that for a predetermined time period following the operation of the antitheft device a prealarm signal is provided which causes said warning devices to operate but not the device which shuts off the engine, so allowing the user to stop the engine.   <IMAGE>
Patent GB-2233711-A (GB)
Title: Rodless piston/cylinder unit
Inventor: CLARKE DOUGLAS CECIL
IPC: F15B15/08
Filed: 1989-05-25
Abstract: A rodless, fluid pressure operated piston/cylinder unit comprises a cylinder 10, a piston 11 reciprocable in the cylinder, a fluid reservoir 12, 13, having a fluid port 25, at each of the two ends of the cylinder, a return passage 14 between the reservoirs, a rotatable drive member 29 in the reservoir 12 and a guide member 34 in the reservoir 13, a flexible drive element 36 connected to one end of the piston and extending around the rotatable drive member and into the return passage, and a flexible tensioning element 37 connected to the other end of the piston and extending around the guide member and into the return passage where it is joined to the flexible drive element. The tensioning element passes through a sealing block 39 positioned between the reservoir 13 and the return passage 14, or the tensioning element is joined to the flexible drive element by a seal (not shown) movable in the return passage. <IMAGE>
Patent GB-2219953-A (GB)
Title: Drill head assembly for cranial perforators
Inventor: BAKER JOHN W
IPC: A61B17/16
Filed: 1988-10-13
Abstract: A drill head assembly (100) for drilling holes in bony structure is disclosed. The assembly has an inner drill (102) and an outer drill (104) which rotate together as a unit. The leading portions (169) of the outer drill are contiguous with the peripheral portions of the inner drill (116) and the inner and outer drills are adapted to form a bore-countersink opening in the bone, whereby the drill head assembly may be used to safely drill through relatively thin bone.
Patent GB-2221159-A (GB)
Title: Package releasing its contents on contact with water
Inventor: EDWARDS DAVID BRIAN
IPC: B29C65/48
Filed: 1989-06-15
Abstract: A package for e.g. a liquid, to be dissolved or dispersed in water, comprises an envelope of water soluble or dispersible material, the envelope having a flexible wall and a water soluble or water dispersible heat seal. The package may contain a pesticide, e.g. fungicide, insecticide or herbicide. The envelope may be made from polyethylene oxide, methyl cellulose or polyvinyl alcohol.
Patent GB-2220510-A (GB)
Title: Detection systems
Inventor: TURNBULL KENNETH J
IPC: G08B25/06
Filed: 1989-06-21
Abstract: In a detection system with detector units 18, 20 signalling over the mains 10 to a control unit 22, the signals are pulse- position-modulated to protect from spurious responses. <IMAGE>
Patent GB-2236716-A (GB)
Title: Marina with driven pontoons
Inventor: ROGERS PAUL RICHARD
IPC: E02B3/06
Filed: 1989-09-28
Abstract: A marina comprises piled parallel main pontoons P1 having secondary pontoons P2 to which are attached hinged finger piers P5. Vessels are securely moored to the pontoons. The secondary pontoons are connectable on the left of the figure by hinged P6 or retractable P7 sections to a shoe, sledge or wheeled carriage 2 located upon an elongate member 1 a component of the main pontoon P1. The arrangement of shoe and rail is duplicated at the right hand end of the secondary pontoons and by the synchronized application of motive power, for example a worm drive mounted on the shoe meshing with a rack gear integral with member 1 the secondary pontoons may be driven together or apart in the direction of the arrows. This movement together with the operation of sections P6 or P7 allows vessels to navigate within the marina as required. <IMAGE>
Patent GB-2241196-A (GB)
Title: Workpiece cutting guide
Inventor: LO TURCO MARIO
IPC: B27G5/02
Filed: 1989-10-27
Abstract: A workpiece cutting guide comprises a sliding jaw A and a fixed jaw B, and a tongue C fixed to the fixed jaw B and slidably received in a guide slot provided in the sliding jaw A. The guide slot allows relative movement of the jaws in two orthogonal directions so that workpieces of different sizes can be accommodated between the jaws. Guides for sawing mitres are provided in the jaws. <IMAGE>
Patent GB-2227569-A (GB)
Title: Camera employing automatic focusing unit abstract of the disclosures
Inventor: ITABASHI TOMOAKI
IPC: G02B7/36
Filed: 1990-01-23
Abstract: An automatic focusing unit is mounted on the light box of a camera by guide means such as a pair of cylindrical members 12b, 20b provided between the light box and the automatic focusing unit, the mounting including a biasing member, such as coil spring 5, and fixing means (such as screws) for adjustably fixing the automatic focusing unit to the box against the biasing force so that the image receiving plane of the automatic focusing unit is placed at an optically equivalent position to that of a film plane with respect to the photographic lens. 
<IMAGE>
Patent GB-2230081-A (GB)
Title: Convection space heating unit
Inventor: WILCOX FRANCIS CLIFFORD
IPC: F24B1/18
Filed: 1990-02-15
Abstract: Apparatus for use with a fire comprises a base plate 18 which sits on the floor of a fireplace, a back portion 22 which extends up the fireback, and a top portion 26 which extends forward to the top of the fireplace. These components are hollow and form between them a duct which extends from an inlet 12 across the floor of the fireplace, up the back of the fireplace and across the top of the fireplace to an outlet at 14. The cross-section of the duct reduces by a taper at 38 so that the heated air accelerates within the duct and is projected out of the outlet 14 into the room with an increased velocity. The apparatus may be used with or incorporated in a simulated open fire or a conventional gas fire. <IMAGE>
Patent GB-2228211-A (GB)
Title: No bounce dart
Inventor: BOTTELSEN WALTER EDWARD
IPC: F42B6/00
Filed: 1990-02-16
Abstract: A no bounce dart (10) comprises a barrel (12) having an axial cavity (16) in its forward end and a point (13) with its rearward portion slidably disposed in the barrel cavity (16). The point (13) is afforded slidable movement between an extended position wherein the rearward end of the point (13) is spaced apart from the bottom wall of the barrel cavity (16) and a hammering position wherein the rearward end of the point (13) contacts the bottom wall of the barrel cavity. An O-ring (30) is mounted in the cavity in the surrounding relation to the point to continuously frictionally impede movement of the point (13) from its extended position to its hammering position. The time delay in the hammering action of the dart (10) provided by the O-ring (30) avoid bounce backs. <IMAGE>
Patent GB-2242052-A (GB)
Title: A display arrangement
Inventor: HODGES IVAN JAMES
IPC: G09F9/35
Filed: 1990-03-14
Abstract: A display arrangement is disclosed that comprises a liquid-crystal panel and an object to be viewed, wherein the object to be viewed is made visible to a viewer by making substantially transparent the panel and thereby allowing light travelling along a path that passes through the panel from the object to be viewed to reach the viewer. The arrangement may include. two or more liquid crystal panels whose opacities are independently, and preferably continuously variable thus presenting the viewer with a temporal sequence of images. An arrangement which finds use in a gaming machine comprises a liquid- crystal panel 3a having discrete and independently controllable liquid-crystal regions 6, with an object to be viewed 2, which may be illuminated (light source not shown) by reflected or transmitted light. <IMAGE>
Patent GB-2235541-A (GB)
Title: Coil and magnet camera shutter actuating device
Inventor: YU CHEUNG LONG
IPC: G03B9/14
Filed: 1990-03-26
Abstract: A camera shutter has a fixed coil 1 and a rod 2 arranged therethrough a permanent magnet 3 is fast with the rod 2. A linkage 40,42 is provided between the rod 2 and the shutter blades 7,8 such that axial movement of the rod opens and closes the shutter. The rod 2 is normally biased to its closed position e.g. by lever 4 and spring 6, but energising the coil with a d.c. supply creates a magnetic field which attracts the magnet and opens the shutter. The biasing closes the shutter as soon as the d.c. supply is removed. Balance weight 5 is shown on lever 4. In an alternative arrangement Fig. 10 the rod is fixed and the coil is arranged to slide along it and is connected to the shutter blades. <IMAGE>
Patent GB-2242441-A (GB)
Title: Process for making metal matrix composites
Inventor: GRIFFIN CHRISTOPHER JAMES
IPC: C22C47/04
Filed: 1990-03-31
Abstract: A process for the manufacture of a composite which comprises embedding continuous filaments of silicon carbide having a discrete surface coating layer of carbon in a matrix of titanium, titanium alloy or titanium intermetallic, under the action of heat.