baber/WOPTO huggingface dataset:
Patent GB-2199511-A (GB)
Title: A device for the separation of solid substances from waste water
Inventor: DUNDER VILHO
IPC: B03C7/00
Filed: 1985-07-11
Abstract: The device comprises a slowly rotating screening drum (1) which is provided with feeding devices for feeding waste water into the screening drum from one end (2) thereof and with devices for discharging solid substances out from the other end of the screening drum. The water is thereby filtered through a mantle (5) of the screening drum. The solid substances for their part are passed forwards inside the screening drum by means of transversal ribs (4) positioned slantingly with respect to the direction of rotation of the drum and, further, are agitated in the screening drum by the action of longitudinal ribs (3) extending over the length of the drum. In order to provide a filtration as effective as possible, at least some of the longitudinal ribs (3) are slanted with respect to the radial direction of the screening drum (1) in such a manner that an angle between that surface of the longitudinal rib (3) which faces in the direction of rotation of the screening drum and the inner surface of the screening drum mantle (5) is smaller than an angle between that surface of the longitudinal rib (3) which faces backwards with respect to the direction of rotation and the inner surface of the screening drum mantle (5).
Patent GB-2204528-A (GB)
Title: Guide shoe for electric tools
Inventor: FREY HERMANN
IPC: B25H1/00
Filed: 1988-04-14
Abstract: Guide shoe 6 for electric tools 2, includes at least one bore 10 for receiving therein a retaining bar 4 of the tool 2 and a guide channel 7 into which engages a guide rib 8 of a guide rail 9 which can be placed on the workpiece 3 along which the tool is guided to work on the workpiece, characterised in that the shoe 6 has-a second guide channel 13 parallel with the first channel 7. The tool 2 slides on the rail 9. The shoe can be reversed to allow channel 13 instead to engage the rib 8 while the tool 2 slides directly on the workpiece 3. The channels 7, 13 are mutually off set. The shoe 6 may alternatively include a single channel and mutually off set bores to receive bars 4 whereby the tool slides on the rail or on the workpiece depending upon which bores are used. The shoe may threadedly receive a depth adjusting compass insert, and circular grooves can be cut. The shoe can be connected to a cam abutment to guide cutter 1 along outer contours of workpiece. The rail includes stops lockable in position on the rib 8. <IMAGE>
Patent GB-2207573-A (GB)
Title: Data transmission circuits
Inventor: PARK YONG EUE
IPC: A61J9/00
Filed: 1988-06-20
Abstract: An improved data transmission circuit for CMOS dynamic random access memory devices having a data input buffer (10) for converting TTL input data signals to CMOS logic level true and complement data signals, a pair of transmission gates (100, 200) for transferring the true and complement data signals in a write cycle, a pair of inverting means connected between respective ones of the transmission gates and true and complement I/O bus lines for inverting data signals from the transmission gates to provide the inverted data signals to true and complement I/O bus lines in the write cycle and an equalising means (500) for precharging and equalising true and complement I/O bus lines in a precharge cycle. It is characterised in that each of the inverting means can operate under the control of a block selecting clock signal regardless of precharging voltages of true and complement I/O bus lines. <IMAGE>
Patent GB-2210214-A (GB)
Title: Uninterrupted power supply
Inventor: BOYLE JOHN WILLIAM
IPC: H02J9/06
Filed: 1988-09-22
Abstract: An off-line power supply includes an inverter for supplying a load from a battery bank when mains are not available. When the mains are available the load is supplied through a gate turn-off static switch and a full wave rectifier provides a supply for maintaining the battery bank charged. The battery voltage is less than that which would normally be necessary to provide the required mains voltage and accordingly the circuit includes a D.C. booster (TR1, L2) and a buck circuit for use when charging the battery from the mains. This enables the A.C. output of the inverter to be taken directly from the inverter output without having to have a heavy and noisy step-up transformer. The supply includes means for reducing switch turn-on and turn-off losses to improve the efficiency of the booster. <IMAGE>
Patent GB-2230260-A (GB)
Title: Strengthening of glass containers
Inventor: BUDD SIDNEY MAURICE
IPC: C03C17/30
Filed: 1989-01-17
Abstract: Glass containers of increased strength are produced by a process in which the containers are treated, immediately after forming and while still hot therefrom, e.g. at a temperature in the range 450-600 DEG C, simultaneously with a silane and an organic fluorine compound. Suitable silanes are methacryl-oxypropyl trimethoxy-silane and methyltri-ethoxy-silane; suitable fluorine compounds are mono-choro-fluoro-methane and 1,1-difluoro-ethane. The containers are suitably treated between the forming machine and the annealing lehr, wherein a "hot end" treatment of the containers may also be applied.
Patent GB-2229303-A (GB)
Title: Alarm signal processing means
Inventor: HOYLE ROGER WILLIAM LESLIE
IPC: G08B13/24
Filed: 1989-03-14
Abstract: An intruder detector system such as a microwave fence having a transmitter 10 and receiver 12 produces a signal proportional to the disturbance created by an intruder. The signal is processed by a microwave detector 14 and processor 16 and supplied, as DC voltage output to two channels 18, 20. First channel 18 compares the DC voltage strength to a pre-set value stored in a first threshold detector/comparator 22. On the DC voltage exceeding the pre-set value an alarm relay 24 is actuated causing actuation of an alarm (not shown). Second channel 20 passes the voltage through a first filter 26 which removes high frequency signal variations characteristic of a fast moving intruder. Thus the signal which is compared with a second pre-set value stored in a second threshold detector/comparator 28 relates only to slow moving intruders and the pre-set value can therefore be set for a lower level of disturbance as would be caused by a crawling human intruder. The intruder detection system may alternatively be a parallel wire electric field sensor. <IMAGE>
Patent GB-2217131-A (GB)
Title: Receiver for personal radio paging service
Inventor: USHIYAMA KATSUMI
IPC: H04W88/02
Filed: 1989-03-23
Abstract: A receiver for personal radio paging service which is housed in a thin, card-shaped housing. The housing with the receiver circuits 3 incorporated therein, is formed by fixedly sandwiching a frame 2 of an insulator between rectangular top and bottom panels 1, 4 of conductive material. A conductor (10) is provided which electrically connects the top and bottom panels at one or more places near one side thereof. At one end of the opposite side, the top and bottom panels are each electrically connected to a receiving input circuit of the receiver so that the housing serves as a receiving antenna. 
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Patent GB-2229787-A (GB)
Title: A mobile emergency shut off valve system
Inventor: CLARKE DEREK WILLIAM FRANK
IPC: E21B17/01
Filed: 1989-03-28
Abstract: A Mobile Emergency Shut-off plug or Valve 6 is located in a branched stowage receptacle 9 above an isolation valve 7 and out of the path of the normal fluid flow, shown by arrow 10 in a pipeline riser 1 leading from an oil production platform sited in water. The plug or Valve 6 is temporarily fixed within the receptacle 9 preventing it moving down the riser 1. For whatever reason, if it is required to shut off the flow of fluid in the riser 1 then the Valve 6 is released into the path of the fluid where its presence would normally constitute an unacceptable restriction. The Mobile Emergency Shut-off Valve system has means of stopping the progress of the valve 6 down the riser 1, fixing if to the inside of the riser 1 and effecting a seal preventing fluid communicating across the Valve 6. Means are also provided to retrieve the valve 6 after use (e.g. by a tether (11, Fig 3) or by pigging). The branched stowage receptacle 9 is located above the water surface but the position for stopping and actuating the deployed Valve 6 is below the water surface. <IMAGE>
Patent GB-2217464-A (GB)
Title: Abdominal probing device
Inventor: PADRON BARRERA FERNANDO
IPC: A61B5/00
Filed: 1989-04-04
Abstract: An Abdominal Probing Device, for early detection of e.g. appendicitis, comprising a probe (2, 3) in a cylindrical body (5), the outer end 3 of the probe projecting beyond the body 5 and the inner end of the probe operating against a compression spring (4) and actuating an electronic of mechanical indicator (1) which indicates the resistance of the abdominal muscle. The preload of the spring may be adjusted and an external collar (9, 10), intended to be placed on the epidermis of the patient, can be adjusted on the body 5 so that the probe end protrudes to varying degrees beyond the collar 10 when pressure is applied to the patient's muscle. <IMAGE>
Patent GB-2217845-A (GB)
Title: Shapemeter
Inventor: LAWSON KENNETH THOMAS
IPC: G01B5/207
Filed: 1989-04-17
Abstract: A shapemeter roll comprises a plurality of shapemeter units (1, 2,...N) arranged side-by-side on a common axis (14) of rotation, and a pair of elongate links (12) each having one end pivotally secured to a respective end of the roll and the other end pivotally secured to a fixed support structure (13). In use, the shapemeter roll automatically takes up a position where its longitudinal axis is normal to the direction of movement of the strip material which engages the periphery of the shapemeter roll. <IMAGE>
Patent GB-2231624-A (GB)
Title: Metering food supply
Inventor: SPERRING RICHARD
IPC: B65B37/06
Filed: 1989-05-19
Abstract: Apparatus for metering a predetermined quantity of aseptic food containing particulate matter into a pre-sterilized package includes a pressurized storage tank (7) for the food, the tank (7) being connected via a valve (9) to a metering device (10). An outlet (16) from the device (10) is connected via a control valve (12) to a fill head (13) through which the package is filled. The device (10) includes a piston (14) movable in a cylinder to bring the food into the cylinder or expel it therefrom, the piston (14) being moved by differences in pressure between its opposite faces, pressure to the rear face of the piston (14) being supplied by a sterilized fluid at a lower pressure than that in the tank (7) so that on closing the valve (9) and opening the valve (12), food is expelled from the cylinder. Piston stroke is controlled by pre-settable control means which controls the supply of sterilized fluid to the rear face of the piston (14).
Patent GB-2227484-A (GB)
Title: Glass enamel
Inventor: ANDREWS RAY
IPC: C03C17/34
Filed: 1988-10-18
Abstract: A glass enamel composition and a method of decorating and bending a glass substrate. The enamel may be fired upon a glass substrate to paint an opaque ceramic color. The glass enamel composition is of special utility in the formation of black windows of automobiles in which an electrically conductive heating grid is also to be formed. The glass enamel composition is comprised of lead or lead-free glass flux material, pigment, a printing vehicle, and an aluminium and/or lithium oxide. The aluminium prevents sticking of the ceramic color to fibrous mold surfaces during hot forming the glass substrate. The aluminium and/or lithium oxide functions a migration preventor to prevent the migration of ions of an electrically conductive material to the glass which stains the glass in the absence of the migration preventor.
Patent GB-2237437-A (GB)
Title: Removable video cassette recorder facia shield
Inventor: GIBBONS GARY KEVIN DAVID
IPC: G11B33/02
Filed: 1989-10-24
Abstract: A removable video cassette recorder facia shield, with means for releasably securing the shield to the facia of the video recorder, comprising a sheet of perspex/plastic 1, coincident in dimensions to the facia of the video recorder 4, and releasably secured by means of "Velcro" type nylon hooked tapes 2 and 3/3A and or a strap or straps 5. "Velcro" is a Registered Trade Mark, <IMAGE>
Patent GB-2231537-A (GB)
Title: Pushchair convertible into infants car seat
Inventor: MOULDS RICHARD ANTHONY
IPC: B62B7/12
Filed: 1990-01-05
Abstract: A push-chair with frame (36) and a seat supported thereby, has a plurality of wheels (11) each connected at the lower, in use, end of a leg (29). Each of the legs (29) is connected to the frame (36) in a telescopable manner. The legs (29) are thus movable in the direction of their longitudinal axis from a retracted disposition in which the wheels are adjacent the frame (36) and an extended disposition where the wheels (11) are remote from the frame (36). Locking means (21, 24) hold the legs (29) in either retracted or extended dispositions. When the legs are retracted the push chair can be used in a car as a safety seat, without disturbing the infant. <IMAGE>
Patent GB-2239956-A (GB)
Title: Testing transmission lines
Inventor: HJIPIERIS GEORGE
IPC: G01R31/50
Filed: 1990-01-13
Abstract: In a test circuit arrangement a transmission line under test (not shown) is connected to a fault detection port (1), and a signal is applied (5) from a test signal source (2) via a splitter (3), The splitter (3) includes a line (8) connected to a signal leveller (9) which maintains the junction of the splitter (3) as a virtual earth, providing good matching. When the transmission line is connected to a fault location test port (10), the signal from the source (2) is again routed via the splitter (3) along another of its output lines (7) to a divider (11) which applies the signal to both the transmission line and to a fault location detector (12). The arrangement enables good matching to be achieved between the splitter (3) and divider (11). <IMAGE>
Patent GB-2228965-A (GB)
Title: Double-glazed windows and doors; Protecting surfaces
Inventor: ROCHMAN PHILIP
IPC: B44C5/02
Filed: 1990-02-19
Abstract: The method of double-glazing a single-glazed window or door (10), comprises attaching a back strip (14) of adherent fibrous material to the frame (11) of the window or door to lie around the primary glazing (12), and applying to the frame (11) a sheet of secondary glazing (13) which carries a mating strip (15) of adherent fibrous material around its periphery so that the fibres of the two strips interengage to secure the sheet of secondary glazing (13) over the primary glazing (12) and entrap a layer of insulating air. The sheet of secondary glazing (13) may be carried in a frame. The method may be used to apply sheets to walls or picture frames to provide protection or insulation. <IMAGE>
Patent GB-2242322-A (GB)
Title: Delayed operation of an indicator or cooling fan in a cooking appliance
Inventor: RYDER GERARD
IPC: F24C7/08
Filed: 1990-03-20
Abstract: Energisation of an oven or grill produces a mains voltage signal at a terminal 2 or 3 whereby a resistor R1 is heated to close a heat-responsive switch S resulting in delayed turn on of a cooling fan F or an indicator. Switch S does not open until resistor R1 cools following turn off of the oven or grill whereby turn off of the fan F or indicator is delayed. Such an arrangement may be used to indicate that a hot plate is still warm after de-energisation of halogen lamp type heaters. A resistor R2 normally cooled by the fan F heats up if the fan fails resulting in opening of a switch or fuse FL, in response to which a fan failure indication is given and the cooling appliance is shut down. The appliance may be heated by gas and/or electrically. <IMAGE>
Patent GB-2243570-A (GB)
Title: Hand tools, eg screwdrivers
Inventor: WELLS TREVOR
IPC: B25G1/04
Filed: 1990-05-02
Abstract: A hand tool, e.g. a screwdriver, includes a locking lever (10) which is operable selectively to cause first and second handle sections (1, 2) of the tool to rotate either in unison or independently of one another. In the latter position, the locking lever (10) projects outwardly whereby more torque may be applied to the tool. In the former position, the lever engages in a slot (12) in the two handle sections thereby locking them together. <IMAGE>
Patent GB-2232778-A (GB)
Title: Electrophotographic photoreceptor
Inventor: MIZUGUCHI JIN
IPC: C07C217/60
Filed: 1990-05-21
Abstract: An electrophotographic photoreceptor comprising an electrically conductive substrate and at least one photosensitive layer containing at least one charge generating material selected from pyrrolopyrrole compounds of formula (6> 
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 wherein
 A and B represent independently from each other C1-C4alkyl, aralkyl, cycloalkyl or a carbocyclic or heterocyclic aromatic radical, and R23 and R24 represent independently from each other hydrogen or substituents which shall not provide water solubility, and at least one charge transporting compound which is a hydrazone aromatic amine, or N-heterocyclic compound selected from formulae (1) (2) (3) (4) and (5).
Patent GB-2246128-A (GB)
Title: Purification of plaunotol
Inventor: NILUBOL NALINE
IPC: C07C33/02
Filed: 1990-06-14
Abstract: Plaunotol is isolated in pure form by extracting the leaves of Croton Sublyratus Kurz, a medicinal plant, with an alcohol followed by extracting the plaunotol from the resulting alcohol solution with a chlorinated hydrocarbon.
Patent GB-2247196-A (GB)
Title: Electrostatic air filter with electronic control
Inventor: WHITING HEDLEY ERNEST
IPC: B03C3/32
Filed: 1990-08-22
Abstract: The filter comprises a metal case, fans 6, printed circuit board, a power pack, a filter unit 7 and a hinged cover 1 having louvred 2 and egg-crate 3 openings. Air entering the through the eggcrate openings is ionised by wires (Fig 2) above the openings, passes between ionising plates 8 to a grounded filter unit 7 of expanded aluminium (Fig 4) and exits through louvres 2. A further grounded filter unit may be provided between the first filter unit and the fans. The filter units may be removed for cleaning by opening the cover 1. Power to the fans, wires and plates is cutoff when the cover is opened and restored when it is closed. The filter may be used in a ceiling to replace a ceiling tile; alternatively it may be mounted in a duct or be free standing. <IMAGE>
Patent GB-2235910-A (GB)
Title: Chain conveyor and pallet
Inventor: FEIN RONALD K E
IPC: B65G17/00
Filed: 1990-09-14
Abstract: A chain conveyor and pallet structure are disclosed in which the pallet (64) contacts an endless chain on an upper run thereof. In one embodiment the pallet contacts the middle link of a three-link chain (35, 36) and the chain is supported on the outer and inner links. The distance between the pallet contact members (70) and the support surfaces (72) is such that the pallet may be removed from the chain conveyor for repair or placement on a second conveyor. In a further embodiment, the pallet (64) is supported on the centre link (42) on both its upper and lower runs, allowing the use of heavier, sturdier pallets. At least some of the rollers in the middle links of the chain are preferably of a greater diameter than the rollers (41, 43) on the inner or outer links reducing the stress between the link and the pallet, and increasing the life of both members. A speed bar may be placed below the three-link chain to engage and rotate the centre link (42) increasing the speed that the pallet is moved at, and providing for a localised speed for the pallet. Means may be provided for lifting the pallet, rotating the pallet and replacing it on the conveyor. <IMAGE>
Patent GB-2238523-A (GB)
Title: Vehicle roof opener
Inventor: SCHURMANN ERICH
IPC: B60J7/16
Filed: 1990-10-19
Abstract: Vehicle roof 1 is pivotable on roof frame 6 by spring 9 engaged in thread 7 of member 8 rotatable by handle 11. Spring end 3 moves in slot 4. The spring is compressed during lowering after spring end 3 abuts the slot bottom. This reduces the space occupied by the opener. Spring end 3 may be fixed. Two or more nested springs may be used. <IMAGE>
Patent GB-2252891-A (GB)
Title: A scarifier
Inventor: DOUGHNEY EDWARD THOMAS PATRICK
IPC: A01D42/04
Filed: 1991-02-12
Abstract: A scarifier blade for use in a rotary or hover mower comprises a generally planar steel strip (1) to which are attached, as by welding, a number of protrusions (5). In the preferred embodiment each protrusion (5) is in the form of a flat steel tooth of generally triangular shape with the base of each tooth welded to the strip (1). In use, the protrusions (5) catch in the thatch of a lawn thereby pulling the undesirable thatch upwards to be cut-off by the leading edge of the blade. <IMAGE>
Patent GB-2254845-A (GB)
Title: Sealing a container to prevent unauthorized reuse
Inventor: SUNMAN ROBERT PETER
IPC: B23K26/36
Filed: 1991-04-17
Abstract: The surface of a container 13 underlying a sealing member 21 adhesively bonded to it is damaged preferably with a laser 23. If the member is then removed, parts of the surface (25, fig 3) are pulled off by the adhesive 22, and the damage is clearly visible. The damaged region may extend all round the container and may be writing, crazing, cracking or a fracture line. Preferably the member and the adhesive are transparent, so that even if they are reapplied the damage is still visible. This visible damage discourages reuse of the bottle by counterfeiters and the like, and the method may be used with perfume or spirits bottles and drug containers. The member 21 forms part of a seal member 16 overlying a closure 15 for the container. <IMAGE>
Patent GB-2256402-A (GB)
Title: Aircraft undercarriages with means to rotate the wheels.
Inventor: MCHALE KEVIN
IPC: B64C25/40
Filed: 1991-06-05
Abstract: An assembly for an aircraft undercarriage has vanes (2) (figs 1-3) provided on the tyres or wheel hubs of an aircraft's wheels (1) to cause the wheels (1) to rotate prior to landing in order to reduce wear and increase safety. The rotation of the wheels (1) is aided by the provision of guide means e.g. a ram air intake (27) to direct pressurised air onto the vanes (23). The pressurised air may come from a positive air supply such as a bleed from an engine of the aircraft or be generated by the aircraft's auxiliary power unit. A wheel speed sensor (28) provides signals to a control unit to warn the pilot if a landing is being attempted with the wheel brakes on. <IMAGE>
Patent GB-2258920-A (GB)
Title: Valve actuating apparatus dependent on liquid level
Inventor: BURNS LAWRENCE
IPC: G05D9/02
Filed: 1991-08-17
Abstract: A valve-actuating apparatus includes an actuator 6 tiltable in one sense by a float 21 which, by way of a vertical tube 20 and as a liquid level approaches an upper position, turns the actuator 6 anti-clockwise until a ball 9 in a tube 7 of the actuator 6 causes the actuator 6 to tilt to one extreme end position to close a liquid supply valve. The actuator 6 is tiltable in the opposite sense by a weight 15 which is substantially weightless when fully submerged in the liquid. As the liquid level approaches a lower position L, the weight 15 pulls a cord or chain 14 to tilt the actuator 6 until the ball 9 causes the actuator 6 to tilt to an opposite extreme position to open the valve. <IMAGE>
Patent GB-2259499-A (GB)
Title: Feeding sheets from a pile
Inventor: FRANK NICHOLAS
IPC: B65H3/52
Filed: 1991-09-11
Abstract: Apparatus (the underside of which is shown) for feeding sheets from the top of a pile of sheets comprises a feed roller (21) and a nudger roller (20) mounted within a support housing (15). The nudger roller is urged, in use, against the top sheet in the stack for feeding the top shoot towards the feed roller. The rollers are so shaped and arranged, and the underside of the housing is so shaped (29, 30, 32, 33), as to provide space to accommodate upcurl of the lateral edges of sheets in the stack. <IMAGE>