baber/WOPTO huggingface dataset:
Patent GB-2282927-A (GB)
Title: Compensating for non-linear effects in signal processing with active devices
Inventor: TUPPER GEORGE IVOR FREDERICK
IPC: H03F1/32
Filed: 1993-05-27
Abstract: In signal processing circuitry using active devices, non-linearity of the device causes distortion of pure tones and the generation of intermodulation products for more complex signals. The transfer characteristics of such active devices (10) may be considered as the accumulated characteristics of input and output filter stages (12, 16) separated by a non-linear region (14). To compensate for non-linearities and reduce intermodulation products, a drive circuit (18) comprises pre- and post-correction filters (26, 28) separated by a compensating amplifier (20). The frequency response of the pro-correction filter (26) corresponds to that of the input filter stage (12) but is reversed in the frequency spectrum; with conventional I.F. The transfer characteristic of the amplifier (20) and frequency response characteristic of the post-correction filter (28) are the respective complements of those of the non-linear region (11) and pre-correction filter (26). The circuitry may be extended to compensate for active devices having more than one non-linear region and has particular application to klystron amplifiers used in broadcast television transmitters. <IMAGE>
Patent GB-2298172-A (GB)
Title: Cycle security device
Inventor: JUERSCHIK KARL PETER
IPC: B62M5/00
Filed: 1995-02-22
Abstract: A security device for a cycle includes a base 1 for securing the device to a solid object such as the ground, and arms 2 including holes 3,4 for receiving a D-lock 8. A cycle may be locked to the device with the cyclist's own D-lock to prevent theft.
Patent GB-2300757-A (GB)
Title: Rotary stepping switch
Inventor: WONG BUN
IPC: H01H17/22
Filed: 1995-05-09
Abstract: A rotary stepping switch comprises a body (11-13, Fig 3), a rotor (34,44), a plurality of stationary switch contacts (31A,31B,41A,41B) located within the body around the rotor, a movable switch contact (33,43) carried on the rotor, and a driving disc (20) supported for angular movement within the body for rotating the rotor in a driving direction to move the movable switch contact into or out of contact with one or more of the stationary switch contacts. The switch includes a one-way clutch (23,39) provided between the driving disc and the rotor for enabling the driving disc to impart a stepwise drive to the rotor, and a one-way stop to stop the rotor against rotation upon return rotation of the driving disc in a non driving direction. At least one stationary switch contact 70A is provided by a one piece strip 71 which has first and second portions 73,75 folded or bent about respective substantially parallel axes to form opposite sides of a clip 78 for clipping an end 81 of a cable/wire 80 upon insertion of the end 81 into the clip 78.
Patent GB-2301540-A (GB)
Title: Kiddie Kascade
Inventor: WILLIAMS KEVIN DAVID
IPC: A63H23/16
Filed: 1995-05-27
Abstract: A Kiddie Kascade includes a frame made of rigid material. The frame consists of uprights of different heights. The frame supports a flexible tube. The tube is supported in such a way that it spirals and has a gentle incline. At the top end of the tube there is a feeder box where the different objects are placed and water flushed in to flush the objects through the tube. There is a receiver box at the bottom end of the tube to receive the objects.
Patent GB-2290632-A (GB)
Title: Control system for metering fuel in internal combustion engines
Inventor: SCHNAIBEL EBERHARD
IPC: F02D41/04
Filed: 1995-06-15
Abstract: On the basis of the operating state of an internal combustion engine and a signal (fr) which corrects the deviation of the air/fuel ratio from a desired value, a signal (tel) for a basic injection quantity is provided. A signal (teukg) for transition compensation is provided which compensates, during and after a change in load, for changes in wall film behaviour. The build up of wall film is estimated (203) from the load (t1) and engine temperature tmot. <IMAGE>
Patent GB-2302665-A (GB)
Title: Garden shears
Inventor: HUANG SHOEI-SHIN
IPC: A01G3/02
Filed: 1995-06-28
Abstract: A garden shears comprises a fixed jaw 20 secured to a first handle 61 and a movable jaw 30 pivoted to the fixed jaw at a pivot 22. A rocking arm 41 is pivoted to the fixed jaw at 23 and is secured to a second handle 62. A connection rod 42 is pivoted to the rocking arm 41 at pivot 412 and engages with a toothed retainer 33, on an extension of the movable jaw, by means of a spindle 423 and grooves 332. A tension spring 44 is fixed at one end to a fastening cover 43 and at the other to a support arm of the connection rod and serves to urge the jaws apart. The arrangement allows for the cutting of an article in stages by letting the spindle 423 to lodge in successive grooves 332 as shown in figs 3 and 4.
Patent GB-2302487-A (GB)
Title: Communications protocol analysers
Inventor: SMITH KEITH
IPC: H04L12/26
Filed: 1995-07-03
Abstract: Telecommunications systems embody means for establishing communications links between entities within that telecommunications system 1, 2, following an exchange of digital messages in accordance with a communications protocol, involving a sequence of complex message exchanges. Known protocol analysers for testing communications protocols involve the use of data bases, which are pre-programmed with all possible combinations of messages sequences which correspond with the protocol to be tested. This is time consuming, expensive and inflexible. By using a neural network 8 within the protocol analyser 9, a sequence of messages exchanged in accordance with a correctly operating communications protocol may be learned, obviating the need for a pre-programmed data base. Training of the neural network 8 is by correct protocol messages stored in memory 5 and errored protocol messages stored in memory 7, generated by a data processor 6.
Patent GB-2305955-A (GB)
Title: An extension ladder with telescopic legs
Inventor: KUO GARY
IPC: E06C1/12
Filed: 1995-10-02
Abstract: An extension ladder includes a pair of telescopic legs 1A, 1B consisting of a plurality pairs of straight round tube members, a plurality of rungs in the same numbers as that of the tube member pairs and each having two lateral ends for the two legs to pass therethrough, a plurality sets of locking mechanisms 80 and lock ensuring mechanisms, and a general switch assembly 90 disposed beneath the lowest rung. The tube members each have a sleeve member 60 and a plug assembly 30A disposed around a top end and in a bottom end, respectively. Each plug assembly includes a set of cover members 33A, 33B and a set of inserts 31A, 31B having an upper and a lower movable hook members 32A, 32B connected thereto. The upper hook member in a lower tube member separately links with the lower hook member in a higher tube member, limiting the tube members of the telescopic legs to be sequentially extended stair by stair. The upper hook member each has an air cock provided at a bottom end thereof to close or open an air port formed on a base of the inserts. The air cocks and the air ports, together with two one-way valves separately disposed at a lower portion of the lowest tube member pairs, enable the ladder to be quickly extended from a collapsed state and be collapsed from an extended state at moderate speed. The locking mechanisms and lock ensuring mechansims are disposed beneath each rung to effectively prevent the ladder from unexpectedly collapsed due to any accidental touch of the locking mechanisms. The general switch assembly serves to actuate and control the sequential and moderate collapse of the rungs.
Patent GB-2296882-A (GB)
Title: Cooled casting roll
Inventor: FUKASE HISAHIKO
IPC: B22D11/06
Filed: 1995-10-13
Abstract: A casting roll 11 on which to cast molten metal comprises central shaft 12, an outer circumferential wall 14 fitted over cylindrical mandrel 15 and roll end walls 16. Longitudinal wall 14 is cooled by water passed through longitudinal passages 22 in that wall. The cooling water is passed to and from passages 22 through passages 23 in the central shaft, radial passages 24 in the end walls 16 and transition passages 25 interconnecting the radial passages with the longitudinal passages. In order to promote cooling of the end corners 31 of the roll, transition passages 25 extend in smoothly curved bends into regions of the roll disposed both radially and longitudinally outwardly from the intersection directions of the longitudinal passages 22 and radial passages 24 so as to provide for water flow close to the roll corners 31 without formation of stagnation pockets.
Patent GB-2307533-A (GB)
Title: A method of adjusting valve clearance by determining cam shim thickness
Inventor: COX IAIN FRANCIS
IPC: F01L1/20
Filed: 1995-11-24
Abstract: A method of adjusting valve clearance comprises 1) measuring, with a depth micrometer, the distance 11 between top surface 12 of cylinder head 1 and top surface 13 of cam follower 3; 2) determine, using a micrometer calliper, the radius of cam heel 10; and 3) using known required clearances between cam heel 10 and top surface 13 calculate the thickness of shim required. Before the measurements can be achieved the cylinder head 1 is split along a line of separation which leaves a lower portion that incorporates lower half 2 of a split camshaft bearing. If the cylinder head has an inclined plane (see figs 3 and 4) a straight round bar (17, fig 3) may be allowed to come to rest at the bottom of cam bearing (16, fig 3) and the distance (18, fig 3) between the top of the round bar and the top surface of the cam follower may be utilized as one of the above measurements.
Patent GB-2296580-A (GB)
Title: Improved medication timing device
Inventor: HOLMES GORDON W
IPC: G04G11/00
Filed: 1994-08-17
Abstract: A medication regime control device employs a plurality of liquid crystal displays controlled by a preprogrammed electronic circuit to display to a patient the number doses of selected identified medications to be consumed at the time of display and any special instructions with respect thereto. The device acts as a watch and personal identifier between displays of the need to take medication. <IMAGE>
Patent GB-2307092-A (GB)
Title: Optical fiber amplifiers
Inventor: IMOTO KATSUYUKI
IPC: H01S3/16
Filed: 1996-04-10
Abstract: A length L M of the fiber 3 of an optical fiber amplifier is set to obtain a substantially maximum saturated output power of the amplified signal light in order to achieve a flat gain and low noise across a wide wavelength band, e.g. for CATV. As described, the amplifier has an Er-doped multiple-core optical fiber. A signal of 1.5m wavelength band is input through an optical isolator 1-1, and pump signals of 0.98m or 1.48m wavelength are injected through WDM couplers 2-1, 2-2 respectively. An amplified signal is output through optical isolator 1-2.
Patent GB-2299533-A (GB)
Title: Method and apparatus for forming sheet metal
Inventor: DUGGAN FRANCIS
IPC: B21D13/04
Filed: 1996-04-18
Abstract: An apparatus for manufacturing profiled sheet metal comprising a plurality of progressive passes for forming flat sheet metal into sinusoidal or corrugated profiled sheet material, each pass comprising an upper 20 and lower roller 22 each roller having the desired profile provided thereon so that as the sheet is progressively formed through each pass OP1 to OP16, the required profile is formed at each pass and is replicated from the first pass to the final pass.
Patent GB-2313382-A (GB)
Title: Metal coating
Inventor: JAILLOUX JEAN-MARC
IPC: C23C4/14
Filed: 1996-05-23
Abstract: A method of depositing a protective metal coating on a hot formed metal object 2, which may be a rolled steel strip, is characterised in that the object is protected from the atmosphere by means of a tunnel 3 of inert gas as it leaves the hot-forming stage. The object is then coated with droplets of molten metal by spray guns 7 to form a priming coating before it cools down. Subsequently, a further coating is applied. The priming coating is less than 30mm thick.
Patent GB-2301779-A (GB)
Title: Thread-wound golf balls
Inventor: MARUKO TAKASHI
IPC: B29K21/00
Filed: 1996-06-05
Abstract: The present invention provides a thread-wound golf ball comprising a thread rubber ball prepared by winding thread rubber around a spherical center, and a cover enclosing the thread rubber ball therewith, which golf ball has a deformation under a load of 100 Kg of from 2.5 to 3.7 mm, and wherein the center has an intrinsic frequency of from 2,000 to 4,000 Hz, an outer diameter of from 30 to 35 mm and a weight of from 19.5 to 29.0 g. The intrinsic frequency is determined by dropping the ball from 120cm onto a steel plate.
Patent GB-2317070-A (GB)
Title: Voice processing/internet system
Inventor: BUTLER NICHOLAS DAVID
IPC: H04M7/00
Filed: 1996-09-07
Abstract: A voice processing system, method and computer program product therefor, allows telephone callers without computers to access World Wide Web pages from the Internet. Usual graphical-based Hyper-Text Mark-Up language (HTML) commands are interspersed with special HTML tags including the commands and data for forming a voice application, which, when run on the voice processing system, provides a voice browser for allowing telephone callers to access Web pages. The voice application tags are provided together with the remainder of the HTML document, thus facilitating editing of the combined data. This helps to keep the graphical browser and voice browser versions of the same data set synchronized.
Patent GB-2317246-A (GB)
Title: Data compressing subscriber identity module
Inventor: GREEN MARK
IPC: H04M1/27453
Filed: 1996-09-13
Abstract: A Subscriber Identity Module SIM 34 - being a smart card comprising a microprocessor 36 and memory 38 - for a mobile station 8 used in a GSM mobile communications system, has the SIM operating system adapted to perform data coding format conversion for data items stored in the SIM and transmitted to the mobile station. This ensures that the SIM is able to receive, and present, data items in the required standard format at the interface between the mobile station and the SIM, whilst allowing the data items to be stored in a compressed format in the SIM memory, thereby increasing the perceived storage capacity of the SIM. In the case of abbreviated dialling number ADN records, data compression may be achieved by removing padding data from a fixed length data coding format so as to store data in a compressed coding format having variable length data fields. Other data, e.g. MDN & MSISDN, may also be stored and compressed by different methods and a gradual de-fragmentation procedure is also discussed.
Patent GB-2306066-A (GB)
Title: Clock recovery
Inventor: ALTMANN MICHAEL
IPC: H03K5/1532
Filed: 1996-10-02
Abstract: In a circuit for recovering a clock from a received multilevel or M-ary signal, the multilevel signal and a reference threshold level are applied to a comparator 10 for deriving a two-level signal, a pseudo-clock signal is derived therefrom via a transition detector 12 and applied to a phase locked loop 14 for recovering the clock signal. The comparator 10 may be a limiting amplifier with a programmable offset. The transition detector may be a zero-crossing detector. The circuit is compatible with standard PLL-type clock recovery techniques for NRZ and generalized two-level signalling. The timing information is extracted from a single threshold crossing irrespective of the number of levels of the signal.The threshold may be programmed for various line codes.
Patent GB-2308891-A (GB)
Title: Rotation angle sensor
Inventor: NAKAZAWA HIROTSUGU
IPC: G01D5/14
Filed: 1997-01-06
Abstract: A rotation angle sensor for sensing the angle of a pivotal member 3, such as an engine throttle valve shaft, comprises a first unit including a magnet 4, and a second unit including a pair of magnetic piece members 5, 6 and at least one further magnetic member, which members are arranged concentrically around the magnet 4. One of the first and second units is connected to the pivotal member 3. A first electric device 11 generates a first signal in accordance with the density of magnetic flux produced between the first magnetic piece member 5 and the or a further magnetic member, and a second electric device 12 generates a second signal in accordance with the density of flux produced between the second magnetic piece member 6 and the or a further magnetic member. The arrangement shown uses two pairs of members 5,6 spaced around the magnet 4, and flux conducting elements 7-10. The electric devices 11,12 may comprise Hall elements. A number of embodiments are described.
Patent GB-2320920-A (GB)
Title: Mobile tool container and workbench
Inventor: GREENE RONALD LOUIS
IPC: B25H1/04
Filed: 1997-01-07
Abstract: A mobile tool container and workbench has a chassis (10),(11) and wheel base (8),(9) upon which the container sits. Handles (13) and (14) combine to form a stand for a workbench top or table (16). For transit, the handle (14) can be folded and rest upon a container door or rotated and come in contact with the handle (13). The workbench top (16) can be strapped or bolted to the container door.
Patent GB-2309782-A (GB)
Title: Oxygen isotopic analysis in water samples
Inventor: PILLINGER COLIN TREVOR
IPC: H01J49/04
Filed: 1997-01-30
Abstract: A water sample and gaseous carrier are fed to an oxygen liberating reactive material e.g. a bed of cobalt trifluoride. The carrier gas containing the liberated oxygen is then supplied at a controlled rate to a spectrometer for oxygen isotope analysis. Rapid repeat analysis can be carried out, typically once every 100 seconds.
Patent GB-2324120-A (GB)
Title: Converting thermal energy of a natural water source into useful power
Inventor: FOTHERGILL IAN ROBERT
IPC: F03G7/05
Filed: 1997-04-09
Abstract: A water transfer vessel 3, travels between a station 2, on the surface of the ocean, and the ocean depths, where the vessel collects cool water and subsequently brings it to the surface. The station has reservoirs 4,16 from which cool and warm water is supplied respectively to a condenser 5, and an evaporator 8, of a low boiling point fluid circuit incorporating a heat engine (turbine) 11. Warm exhaust water is discharged via the vessel 3 at the ocean depths. A single transfer vessel 3, may be used (figure 1) and the or each vessel may be propelled between levels by a variety of means including propellers, water jets, cables or chains, buoyancy control, and impulse drive (piston or catapult). Alternatively the vessel may be propelled along the surface between an offshore location and a land based energy conversion facility (figure 20).
Patent GB-2312794-A (GB)
Title: Cable conduit hose
Inventor: NICHOLSON JOSEPH ALLAN
IPC: F16L11/08
Filed: 1997-04-30
Abstract: A cable conduit hose 10 containing a liquid medium is formed with a reinforcing braid 30 extending at an angle to the longitudinal axis of the hose. Preferably the angle is 25 to 30{. The hose can be formed from an inner layer 20 of nitrile and an outer layer 40 of PVC/nitrile, with a reinforcing braid 30 of aramid fibre interposed between the layers. The layers and the braid may be adhered to one another. The outer surface of the hose can be brightly coloured with a longitudinal stripe 50. The hose is filled with a gel or a dielectric oil, and used as a pressure balanced cable conduit hose on the sea-bed for electric or optic cables.
Patent GB-2309738-A (GB)
Title: Door latching mechanism
Inventor: REMNANT PETER CHARLES
IPC: E05C9/04
Filed: 1996-10-01
Abstract: A door latching mechanism 1 comprises latching bolts 19 and 20 and an intermediate bolt 25 attached to a door 2 and movable in relation to the door 2 by a handle 5 pivotable about a pivot axis 16 parallel to the door 2 between a latched position (Figure 3) effecting latching of the latching bolts 19, 20 and 25 and an unlatched position (Figure 4) effecting unlatching of the latching bolts 19, 20 and 25. Bolt 25 projects parallel to but spaced from axis 16. A lock 27 is mounted on the handle 5 so as to be pivotable with the handle 5 and incorporates a locking bolt 28 to lock the handle 5 in the latched position. Furthermore the intermediate bolt 25 increases the security of the locked door as it prevents the latching bolts 19 and 20 from being sprung out of engagement with the door frame by levering of the intermediate region of the door.
Patent GB-2314683-A (GB)
Title: Semiconductor device
Inventor: ZENKE MASANOBU
IPC: H01L21/02
Filed: 1997-06-30
Abstract: A stacked storage capacitor (13) of a dynamic random access memory cell has an accumulating electrode (13c) increased in surface area by growing hemispherical silicon grains (13b) on an amorphous silicon layer (13a), and a barrier layer (12f) of titanium nitride is previously formed between a source region (11c) of an associated field effect transistor (11) and the amorphous silicon layer so that phosphorous dopant is prevented from diffusing from the amorphous silicon layer into the source region.
Patent GB-2314332-A (GB)
Title: Gene expression in mammalian cells
Inventor: TAN YIN HWEE
IPC: C12R1/91
Filed: 1996-03-22
Abstract: Proteins such as human * small Greek beta *-interferon or human erythropoietin are prepared by culturing mammalian cells which harbour a nucleic acid sequence comprising: (i) a coding sequence which encodes the desired protein and which is operably linked to a promoter capable of directing expression of the coding sequence in a mammalian cell in the presence of a heavy metal ion; and (ii) a first selectable marker sequence comprises a metallothionein gene and which is operably linked to a promoter capable of directing expression of the metallothionein gene in a mammalian cell in the presence of a heavy metal ion; and optionally (iii) a second selectable marker sequence which comprises a neo gene and which is operably linked to a promoter capable of directing expression of the neo gene in a mammalian cell.
Patent GB-2317705-A (GB)
Title: Crankshaft rotation sensor
Inventor: ANTCLIFF STEVE
IPC: F02D35/00
Filed: 1997-09-26
Abstract: An internal combustion engine system 10 includes an engine crankshaft 60 with a plurality of crankshaft webs 70a-70f, 72a-72f. A reference ring 80 is mounted to one 72a of the crankshaft webs to rotate therewith. The ring 80 encircles the crankshaft 60 and has a number of angularly spaced indicators. A sensor 46 is located proximate to the ring 80 and detects the indicators to provide a sensor signal corresponding to a rotational characteristic of the crankshaft 60. The ring 80 may be comprised of more than one piece to facilitate installation and removal without disassembly of the crankshaft 60. The indicators may be provided by defining a number of peripheral teeth for detection by the sensor.
Patent GB-2319608-A (GB)
Title: Embedding biological samples
Inventor: THIEM STEFAN
IPC: G01N1/36
Filed: 1997-11-19
Abstract: Automatic embedding apparatus (1) for treatment of samples for histological examination comprises a plurality of containers (4, 5) arranged beside one another and object holders (6) respectively associated with the containers (4, 5), the object holders (6) being fastened to a rotary disc (7) which is disposed above the containers (4, 5) and connected with a central guide rod (8). The rod (8) is movable perpendicularly to the plane of rotation of the disc (7). Vacuum equipment (9) for production of a vacuum in at least one of the containers (4, 5) is integrated into the apparatus.