baber/WOPTO huggingface dataset:
Patent GB-2230627-A (GB)
Title: Recursive processor for multiplication
Inventor: KNOWLES SIMON CHRISTIAN
IPC: H03H17/02
Filed: 1989-06-13
Abstract: A recursive processor suitable for infinite impulse response (IIR) filter applications incorporates multiplier cells 16 connected to form rows 12 and columns 14. Each row is arranged to multiply by a coefficient. It begins with accumulator cells 8 and 20, and continues with multiplier cells 16 arranged to multiply by individual coefficient digits and disposed in descending order of digit significance. Columns 14 other than the first column 14, begin with a multiplier cell 16, and the higher significance columns 14, to 144 terminate at respective accumulator cells 20. Any intervening multiplier cells are arranged in ascending order of multiplier digit significance. The multiplier and accumulator coils 16 to 20 operate in accordance with signed digit number representation arithmetic involving digit redundancy. They generate sum and transfer digits for output down columns and along rows respectively to neighbouring cells in the direction of increasing coefficient digit significance. The cell arithmetic employed makes it possible to compute results most significant digit first. Each result digit is recycled when formed to provide a multiplicand digit input for all multiplier cells of a respective row selected in accordance with result digit significance. The processor is also arranged to add successive non-recursive input terms to multiplier products. This provides for the processor to provide a first order IIR filter section, and two cascaded processors provide a second order IIR filter section. The recursive computations required for a first order IIR filter section is effected irrespective of word length with latency of only two clock cycles. <IMAGE>
Patent GB-2220659-A (GB)
Title: Process and apparatus for removing pcb's from electrical apparatus
Inventor: FOWLER DAVID E
IPC: C07C17/38
Filed: 1989-07-24
Abstract: A process for removing polychlorinated biphenyls from electrical apparatus, particularly transformers, to achieve concentration levels of 50ppm or less as required by the EPA uses a dielectric fluid having a relatively low boiling point as compared to polychlorinated biphenyls and other contaminants and in which PCB's are soluble is selected. There is an external cooling loop through which the dielectric fluid is circulated maintaining the temperature and pressure of the transformer within its design limits. There is an external distillation loop where the liquid removed from the transformer is heated to boiling point of the selected dielectric fluid thereby vaporizing the dielectric fluid and leaving the polychlorinated biphenyls in liquid phase in the distillation vessel. The dielectric fluid vapor is then condensed and returned to solubilize remaining PCB's in the transformer.
Patent GB-2226186-A (GB)
Title: An offset reflector antenna
Inventor: NOMOTO SHINICHI
IPC: H01Q19/02
Filed: 1989-10-31
Abstract: A cross polarisation component of electric field on an aperture plane of a reflector 1 in an offset reflector antenna is prevented by purposely generating a cross polarisation component on an opening plane 4 of a feed horn 2, so as to reduce the cross polarisation component of electric field on the aperture plane of the reflector. The structure for providing the cross polarisation component on the aperture of a feed horn 2 may be, for instance, an oblique structure, figure 4a, with a slant angle  theta A-between normal axis direction of an aperture of a feed horn and an axis of the feed horn; an asymmetrical flange (6), figure 4C, attached on an aperture plane of the feed horn (2); asymmetrical chokes (8a-8n), figure 5a, on a symmetrical flange on an aperture plane of the feed horn; or an asymmetrical corrugated structure (9), figure 5b, attached on an inner wall of the feed horn. <IMAGE>
Patent GB-2241574-A (GB)
Title: Fire surround
Inventor: JEVON ROBERT WILLIAM SAM
IPC: F24B1/198
Filed: 1990-02-28
Abstract: A fire surround (10) is constructed by bending one or joining two surround members to form each of two shaped surround pans (11) of a desired configuration and fixing the members in this configuration e.g. by way of a handle (24), cover plate (27). Once formed the two shaped surround parts (11) are slidingly received with a linkage member (12) which permits a relative sliding movement of the surround parts (11) therein thereby allowing the increase or decrease of at least one dimension of the surround (10). <IMAGE>
Patent GB-2244204-A (GB)
Title: A spirit warming set
Inventor: YIP CHUN-KUEN
IPC: A47G23/02
Filed: 1990-05-23
Abstract: A spirit holding and warming set (10) comprising a holding member (12) for a bottle of drink (15), a heating arrangement (14) for warming of the drink, and glass holding means (16) for at least one glass, the bottle holding member, the heating arrangement and the glass storing means all being integrally provided in the spirit warming set. <IMAGE>
Patent GB-2232219-A (GB)
Title: A fastening device
Inventor: WOODCOCK JEFFREY
IPC: F16B33/02
Filed: 1990-05-30
Abstract: A fastening device in the form of a chipboard screw 1 has a thread formation 2 comprising two helices 3. The helices 3 are superimposed on a single thread formation which has a twin start. Facing surfaces 4, 5 of successive turns 6 diverge to provide a wedge shape between successive turns. This formation retains the integrity of material receiving the device. As shown, the helix angle is 211 DIVIDED 2 DEG +/-1 DIVIDED 2 DEG , the distance between successive crests is 0.43 of the shank diameter, the depth of thread is 0.2 of the shank diameter and the point 13 has an angle of 25 DEG +/-2 DEG . <IMAGE>
Patent GB-2241100-A (GB)
Title: Display sign
Inventor: HOBBS MICHAEL ANTHONY
IPC: G09F7/22
Filed: 1990-08-24
Abstract: A retail display sign of the swinging panel kind is provided in which the main frame structure is a gas-cored injection moulding e.g. in polypropylene. The gas core is a single cavity extending along the top rail 1A, the side posts 1B, 1C and the outer portions of the lower rail 1D of the frame. The hollow regions of the frame when viewed in transverse section are convex throughout their periphery in order to assist moulding and centralising the gas core within the moulded structure. The frame structure may include depending connector formations for pairs of pivotted feet 5 which can be moved from positions at right angles to the frame to positions aligned with major planes of the frame. The use of a frame of generally oval cross section and a lower rail 1D raised from contact with the ground provides a structure that is resistant to overturning in high winds. <IMAGE>
Patent GB-2459914-A (GB)
Title: Guidance system for a missile provided with a photosensitive detector
Inventor: ORDONS JACQUES ROZE DES
IPC: F41G7/22
Filed: 1990-10-16
Abstract: A system for the guidance of a missile 1 towards a target (T, Figs 5a-5c) comprises a photosensitive detector 8 mounted on board the missile and associated with an optical system 9, observing the space in front of the missile, the missile being provided with propulsion means (3) and direction controlling means. The photosensitive detector comprises a fixed matrix 8 of controllable photosensitive elements centered on the axis (L-L) of the missile. The propulsion means 3 comprise at least one pair of identical fixed nozzles 4a, 4b which are coplanar and symmetrical with respect to the axis (L-L) of the missile, and the direction controlling means comprise a jet deflection system 13 for the nozzles. Means 21 are provided for maintaining the image of the target (T) at the centre of the matrix 8 of photosensitive elements by controlling the jet deflection system (13) which controls the missile in rotation (Fig 4) to bring the image axis (OZ Fig 5b) and in transverse translation (Figs 3a-3c)to bring the image to the origin (O Fig 5c). The control system may be fixed with a fibre optic connection 22, or it may be mounted on the missile (not shown).
Patent GB-2249730-A (GB)
Title: Show jumping obstacles
Inventor: WILDING RONALD NOEL
IPC: A63K3/04
Filed: 1990-11-14
Abstract: A pole for use in a show jumping obstacle, the outer, decorative surface of which is defined by a removable sleeve of a synthetic resin material. The external surface of the sleeve may be printed to provide the decoration for the pole.
Patent GB-2250959-A (GB)
Title: Folding ruler
Inventor: REDDING TIMOTHY ALFRED
IPC: G01B3/06
Filed: 1990-12-21
Abstract: A 12 inch, plastics ruler (1) consists of two equal halves (2, 3) interconnected by a "living" hinge (4). One half of the ruler can be rotated relative to the other half by rotation about hinge axis X-X, to a fully folded up position. The hinge (4) is releasably force-fitted or snap-fitted into the ruler. Also a protrusion (4j) on one half of the hinge engages with a hole (4m) on the other half to hold the ruler in the folded position. <IMAGE>
Patent GB-2244152-A (GB)
Title: Multiple unit air conditioning system
Inventor: SHIMIZU KEIICHIROU
IPC: F25B49/02
Filed: 1991-03-27
Abstract: Refrigerant flowing through each air conditioning unit (C1..Cn) of a multiple unit air conditioning system is respectively detected by a refrigerant flow sensor 45 in each unit and the degree of opening of a respective refrigerant flow control valve 49 is controlled so as to bring the refrigerant flow to a target value determined, for example, in response to detected room temperature. The capacity of the compressor 23 of a refrigerant supply unit A of the system is controlled according to the total of the respective target values of refrigerant flow. In a second embodiment (Fig 9) a distribution unit (B), remote from a group of air conditioning units (C1-C3) communicates therewith via a wireless remote controller (65a). The system may be used in respective rooms of a building or (second embodiment) in respective areas of a room wherein the capacity of each unit is small. <IMAGE>
Patent GB-2255877-A (GB)
Title: Communications link carrying interface configuration signal
Inventor: CLARK ALAN DOUGLAS
IPC: H04M11/06
Filed: 1991-05-17
Abstract: A communications link is set up between two terminals (1, 2), e.g. computers, via a pair of data communications devices (3, 4), e.g. modems, by one device (4) responding to a communications request signal by sending to the other device (3) an interface configuration signal corresponding to the configuration of the interface between it (4) and the terminal (2) to which it is connected, and the other device (3) responding to the interface configuration signal from the one device (4) by configuring the interface between it (3) and the terminal (1) to which it is connected so that it is compatible with the interface configuration between the device (4) and the terminal (2) to which it is connected. This removes the need for the user to configure his terminal/device interface himself in communicating with a remote terminal. The communication request signal typically originates with the user at their terminal (1) and either the interface between the remote device (4) and terminal (2) is configured to match the interface between the user's terminal (1) and device (3), or vice versa. The data communications devices may be modems or other devices used for asynchronous communication. The interface configuration signal may comprise data format, flow control information and required terminal type. <IMAGE>
Patent GB-2244539-A (GB)
Title: Variable damping force shock absorber
Inventor: YAMAOKA FUMIYUKI
IPC: F16F9/34
Filed: 1991-05-28
Abstract: A pressure cylinder 11 forms a working chamber 100 having first and second portions A, C operable to store damping fluid. A valve 21 is provided to control a first flow G of damping fluid between the first and second portions A, C of the working chamber 100 during compression of the shock absorber. A bypass passageway controlled by an angularly adjustable flow restrictor 28 allows a second flow (I, Fig. 3) of damping fluid between the chambers. A pressure chamber E is in fluid communication with portion C of the working chamber 100 and the valve 21. The flow restrictor 28 is operable to regulate also a third flow H of damping fluid out of the pressure chamber E. Similar pathways J, (L, Fig 3) and K through a second damping valve 15 controlled by restrictor 28 operate on the rebound stroke. <IMAGE>
Patent GB-2259850-A (GB)
Title: Urinal cleaning agent supply apparatus
Inventor: NEO PAUL
IPC: E03D9/03
Filed: 1991-09-24
Abstract: The apparatus comprises a reservoir (3) which contains a cleaning agent and which has a port (41) and an inlet via which the agent can be replenished. A cover (33) is fitted and sealed to the inlet. A horizontal guide pipe (1) has one and fixed and sealed to the port, and the other end, having an opening (12), which can be fitted into a water supply pipe of a urinal so that it collects a fraction of the water flowing in the supply pipe during flushing. Means (4) may be provided for adjusting the level of the port with respect to the reservoir. <IMAGE>
Patent GB-2261764-A (GB)
Title: Method of making seal in alkali metal energy conversion devices
Inventor: MACLACHLAN STUART
IPC: H01M50/191
Filed: 1991-11-22
Abstract: in making alkali metal energy conversion device having a solid electrolyte member 11 separating respective electrode spaces, the electrolyte member being conductive to ions of the alkali metal, with seals between the electrolyte member 11 and an electronically conductive current collecting member 18 of the device formed via an insulating member 12, the insulating member 12 being joined to the electrolyte member by means of a hardened sealant 13 incorporating glass powder at an interface between the members, dry powder incorporating glass powder is moulded and compressed to form a self supporting dry mass of the powder having a shape substantially conforming to the interface between the members, the electrolyte member and the insulating member are then brought together into the joining position with the dry mass of the powder at this interface and the members are heated to melt the glass powder to join the members. <IMAGE>
Patent GB-2265057-A (GB)
Title: Resistance welding supply control
Inventor: STANWAY JOHN DESMOND
IPC: B23K11/25
Filed: 1992-02-28
Abstract: Resistance welding apparatus includes a welding transformer (1) having a primary winding forming part of a primary circuit (2) and a secondary winding forming part of a secondary circuit (3), the secondary winding being connected to welding electrodes (9, 10) and the primary winding being connected to means (5) for controlling the supply of current to the primary winding. The resistance welding apparatus is controlled in dependence upon whether the voltage across the primary winding is above or below a predetermined level. Current may be supplied to the primary winding by way of a capacitor (7) connected in series with a resistor (8) and with the primary winding, or by a resister (16) alone connected in series with the primary winding, so as to establish a voltage across the primary winding. <IMAGE>
Patent GB-2256987-A (GB)
Title: Gps with altitude determination
Inventor: MASUMOTO YUTAKA
IPC: G01S19/50
Filed: 1992-06-17
Abstract: A global positioning system for an automobile includes a GPS receiver 11 outputting either two- or three-dimensional position data. An output unit 15 calculates position data from only data from the GPS receiver while the GPS receiver is operating in three-dimensional mode; when the GPS receiver operates in two-dimensional mode, the output unit calculates position from two-dimensional data and barometric altitude data 13 relative to when the three-dimensional mode ceased. Alternatively (fig 4) the GPS may calibrate the altimeter when the former operates in three-dimensional mode. A CD-ROM 16 contains altitude map data which may be matched with that determined otherwise, or used (fig 5) to give the automobile altitude. <IMAGE>
Patent GB-2271944-A (GB)
Title: Production of ductwork systems
Inventor: HURST DAVID RICHARD
IPC: B21C37/28
Filed: 1992-10-31
Abstract: A method of producing ducting or ductwork systems which overcomes the need for drilling operations on site. The parts 10, 11, 12, 13, 14, 15, and 16 which are to be put together to form the ducting are produced on a single computer controlled turret punch machine which accurately shapes the parts and also accurately forms holes 17 in the parts. Alternatively a computer controlled laser cutter may be used. The accuracy achieved avoids the need for labour intensive and often inaccurate drilling when assembling the ductwork on site. <IMAGE>
Patent GB-2263832-A (GB)
Title: Compressing or expanding circuits which operate without clock signals
Inventor: KIMURA KATSUJI
IPC: H03G7/00
Filed: 1993-01-22
Abstract: A compressing or expanding circuit in which first and second DC signals different in polarity from each other are obtained in response to an input AC signal. The AC signal and the first DC signal are differentially amplified to obtain a first differential output signal, and the AC signal and the second DC signal are differentially amplified to obtain a second differential output signal. A rectified AC signal obtained from the differential output signals is averaged to obtain an averaged rectified signal and first and second signals in accordance with the averaged rectified signal. The AC signal and the first signal are differentially amplified to obtain a third differential output signal and the AC signal and the second signal are differentially amplified to obtain a fourth differential output signal. The third and fourth differential output signals are combined so as to be opposite in polarity to take out the product signal of the AC signal and the averaged rectified signal. <IMAGE>
Patent GB-2264212-A (GB)
Title: Frame synchronisation by use of parity bits in data communication
Inventor: BROWNLIE JOHN DAVID
IPC: H04L7/04
Filed: 1993-02-12
Abstract: Data to be transmitted are divided into frames, which include parity bits. These are of even or odd parity in accordance with a predetermined pattern synchronous with the framing structure, and which does not recur on concatenation of the pattern with itself. A receiver can compare (110) the results of a parity check (109) with the expected pattern, and, in the event of mismatch, invoke resynchronisation procedures (111). <IMAGE>
Patent GB-2275942-A (GB)
Title: Stairway with half steps
Inventor: CARTWRIGHT NORMAN
IPC: A61H3/00
Filed: 1993-03-13
Abstract: The Stairway half Step is a disability aid to assist climbing and descending of stairways, especially in the home. Half steps A are added to the existing stairway, staircase or flight of steps, either to the left or right, so as to double the number of stair treads without any structural alteration. The physical effort of each step or stair ascent is greatly reduced, since by inserting half Steps into a 13 step stairway, it is climbed in 26 stages instead of 13. The stairway can still be used in normal manner, to the right of the Stairway half Steps shown. <IMAGE>
Patent GB-2265973-A (GB)
Title: Casing for fireworks
Inventor: GAMON FERNANDO GARCIA
IPC: F42B12/76
Filed: 1993-04-13
Abstract: A casing (2) for fireworks comprises at least two hollow half-casings formed of layers of pressboard. At least one of the half-casings is provided with an axial orifice, advantageously arranged to receive, in a moulding operation, a plastic tubing (3) which is provided with an axial passage (4). The walls of the tubing (3) may be partially incorporated into the casing (2) at the edges of the orifice so as to provide an axial extension to the pressboard half-casing, in order to constitute the plastic shell of a fuse for the transmission of a flame to the inside of the casing. <IMAGE>
Patent GB-2267961-A (GB)
Title: Gas burner
Inventor: HOLLINS HUMPHREY BOLTON
IPC: F23D14/02
Filed: 1993-06-07
Abstract: A gas burner comprises a housing (10) of circular cross-section with inner and outer peripheral walls (12, 14) defining therebetween an annular passage for flow of water therethrough. Within the housing (10) is a rotary assembly comprising a motor (22), a drive shaft (20), and a plurality of thin metal discs (26) separated axially from one another on a disc (24) which is mounted on the shaft (20). When a gas air mixture is introduced centrally of the rotary assembly, the gas passes radially between the disc (26) to a combustion chamber between the latter and the housing wall (12). The passage for water is in heat exchange relation with the combustion chamber and the fuel is capable of burning with a low flame velocity relative to the rotary assembly but a high velocity of products of combustion relative to the water passage. <IMAGE>
Patent GB-2268104-A (GB)
Title: Electromagnetic levitation type continuous metal casting apparatus having       cooling means
Inventor: YAMADA MASAHIKO
IPC: B22D11/14
Filed: 1993-08-06
Abstract: An electromagnetic levitation type continuous metal casting apparatus employs a molten metal storing furnace 2 for holding and storing a molten metal, a casting vessel 3 for upwardly receiving and holding the molten metal in the form of a molten metal column and cooling means 4 unified with the casting vessel and disposed on the outer periphery thereof for cooling and solidifying the molten metal column, an alternating electromagnetic field generation means (5) for upwardly moving the molten metal column in the form of coils 5a unified with the casting vessel and disposed on the outer periphery thereof, a tube shaped molten metal supply path 7 supplies the molten metal to be cast from the molten metal storing furnace to the casting vessel, and high frequency heating means 8 disposed on the outer periphery of the molten metal supplying path is characterised in that the cooling means causes the flow of the coolant to be inverted at the area where the second coil 5a2 from the lower end of the plurality of coils 5a1, 5a2 for generating the alternating electromagnetic field is disposed. A displacer 5 may be provided for pressurizing the molten metal in the furnace 2 for supply to the path which extends almost horizontally from a side wall of the furnace at a location higher than the level of the molten metal when the displacer 5 is raised. <IMAGE>
Patent GB-2268055-A (GB)
Title: Waste valve fittings
Inventor: COLE ALAN CHARLES
IPC: E03C1/298
Filed: 1993-08-10
Abstract: A waste outlet fitting (1) has a tubular body (2) in which a cartridge (3) is mounted. An elastomeric diaphragm (6) is carried by a central support member (4) integral with the cartridge and defines a skirt flaring outwardly to normally close the bore of the cartridge (25) and thus the tubular body (2). Part of the cartridge wall may be elastomeric for improved sealing with the diaphragm (6). Pressure of water leaving a basin via the outlet fitting (1) causes the diaphragm to deflect downwardly and inwardly allowing water to pass. When the basin is empty the diaphragm (6) returns to its original position under its own resilience, thus sealing the outlet from any back flow.   <IMAGE>
Patent GB-2284112-A (GB)
Title: Battery charging control system
Inventor: CHIANG CHIH-CHENG
IPC: H02J7/35
Filed: 1993-11-23
Abstract: The system controls charging in response to the monitored state of the battery 7. Charging may be effected from an external supply (an AC supply or a car battery) via a switching device 5 controlled by a regulator IC 4 which is responsive to a master control IC 8. The control IC 8 receives signals from a temperature sensor 10 and a current sensor 14. Charging may also be effected by means of a light collector 11 and convertor 13, there being an overvoltage protection circuit 15 which monitors the voltage of the supply from convertor 13 so as to provide a suitable charging voltage. If the battery temperature is below 5 DEG C or above 50 DEG C, charging current is set at a lower level (about 0.1 mA). Charging is controlled in a manner to eliminate problems due to "memory effect". <IMAGE>