baber/WOPTO huggingface dataset:
Patent GB-2375906-A (GB)
Title: Laser initiated ordnance system optical continuity test
Inventor: JACOBS RICHARD
IPC: G01M11/00
Filed: 1988-08-19
Abstract: An apparatus is disclosed for testing the integrity of an optical fiber 20 from a single end of the fiber. A test light source 40 with a wavelength that is different from the primary light source 14 is directed into one end of the optical fiber 20. A spectrally selective dichroic material 32 is attached to the other end of the optical fiber 20. This material 32 transmits light of the wavelength of the primary light source 14 and reflects light of the wavelength of the test light source 40. A break or discontinuity in the optical fiber 20 can be detected by an attenuation in a pulse of light from the test light source 40 after it is transmitted through the optical fiber 20 and reflected back out of the optical fiber 20 by the dichroic material 32. This system can detect breaks or discontinuities in the optical fiber 20 with a high degree of resolution.
Patent GB-2226178-A (GB)
Title: Magnetic disk pack with a servo recording surface
Inventor: OHNO YOSHITAKA
IPC: G11B27/10
Filed: 1989-04-25
Abstract: Index patterns on a magnetic disk pack are disclosed. The disk pack includes a plurality of coaxially stacked magnetic disks on one of which is formed a servo recording surface for generating a servo positioning signal. The servo tracks on the servo recording surface include an index pattern consisting of missing pairs of dibits on adjacent pairs of odd and even numbered serve tracks; the index is formed at a starting and ending position of the tracks to mark the circumferential position thereof. In the index pattern, at least three non-missing dibit pairs are interposed between adjacent missing dibit pairs. The examples of the index pattern are: 011110, 0111110, 01111110, etc., in which four, five, or six 1's (representing the non-missing dibit pairs) are inserted between two 0's (representing missing dibit pairs). This organization of the index pattern is effective in reducing the adverse effects of the missing dibits in the index pattern upon the radial position signal obtained from the dibits on the serve tracks. …<IMAGE>…
Patent GB-2235014-A (GB)
Title: I.c engine cylinder
Inventor: WENSLEY CHRISTOPHER BARRIE
IPC: F01L7/04
Filed: 1989-08-15
Abstract: A sleeve 22 arranged to surround the cylinder 10 is provided with at least one port or slot 24 which is operative, when the sleeve 22 is rotated about the cylinder 10, to open and close cylinder inlet and exhaust ports. The rotation is caused by a toothed wheel 26 driven by the engine's crankshaft. Wheels 26 of adjacent cylinder sleeves 22 may engage. Two contra rotating sleeves may control the ports. The sleeve 10 may be formed of a spring steel strip with interleaved crenellated edges. <IMAGE>
Patent GB-2243039-A (GB)
Title: Radar System employing injection locked transmitter stage
Inventor: JOYNSON DAVID WILLIAM
IPC: G01S13/24
Filed: 1989-11-07
Abstract: Problems arise with maintaining the injection locking bandwidth centred on the radar source transmit frequency. The invention maintains this alignment by allowing the injection locked magnetron (38) free running frequency to drift, along with its injection locking bandwidth and then to force the radar source frequency (30) to follow the magnetron frequency. A phase difference measurement (44) between the injection signal (35) and the magnetron output signal (37) provides the control for a feedback loop (60) which may control a tunable VCO (48) or selection from a bank of fixed oscillators (78). <IMAGE>
Patent GB-2244320-A (GB)
Title: Compound crank mechanism
Inventor: DOVISON DAVID
IPC: F16H21/18
Filed: 1990-05-25
Abstract: A mechanism, particularly a piston engine or pump, for converting reciprocating motion into motion in a circle and vice versa, comprises a reciprocating member 3 a transmission member 2 rotatably mounted on the reciprocating member and a rotatable crankshaft 1 so mounted to the transmission member 2 that linear motion of the reciprocating member causes the transmission member to rotate and consequently the crank shaft to counter rotate. The mechanism occupies a third of the volume of a conventional four stroke engine. <IMAGE>
Patent GB-2238676-A (GB)
Title: Radiant electric heaters
Inventor: SCOTT RICHARD CHARLES
IPC: H05B3/74
Filed: 1990-11-05
Abstract: A radiant electric heater (10) has two coiled resistance wire heating elements (22,24) each connected to one terminal (N) of a power supply via respective rectifiers. These rectifiers are each made up of two like-poled arms of a bridge rectifier (34) connected in parallel, and they are arranged to allow current through one heating element (22) on positive-going half-cycles of the power supply waveform, and through the other heating element (24) on negative-going half-cycles. The elements are rated for continuous power dissipation under these circumstances. A PTC thermistor (36) is connected between the ends of the heating elements connected to the rectifiers. Optionally an NTC thermistor (40) can be connected in series with the PTC thermistor. Upon initial energisation the PTC thermistor is a near short-circuit, so current flows through both heating elements on both polarity half-cycles, dissipating twice their rated power. The elements increase in temperature more quickly than if they were initially energised at only their rated power, so the visible response of the elements to energisation is faster. Meanwhile the PTC thermistor increases in resistance owing to self-heating, thereby removing the short-circuit after a few seconds, reducing the power dissipation in the elements to its normal level and protecting them from excessive operating temperatures.
Patent GB-2240158-A (GB)
Title: Pressure control valve
Inventor: HIROKI KAZUCHIKA
IPC: F16K31/06
Filed: 1990-11-07
Abstract: A pressure control valve assembly is provided with a valve spool 4 which is formed integrally with a plunger 54a of an electromagnetic solenoid 5a so that the electromagnetic force generated by the solenoid is directly active on the valve spool. A second solenoid 5b actuates a second plunger 54b formed integrally with the other end of the spool 4. Set springs 4e, 4f are positioned axially outside of the solenoids to make it easy to adjust the set load to be exerted onto the valve spool. The valve may be used in an automotive power steering system. <IMAGE>
Patent GB-2240429-A (GB)
Title: Method for manufacturing a photo diode for a CCD image sensor
Inventor: LEE SUNG MIN
IPC: H01L31/0216
Filed: 1991-01-25
Abstract: A method for manufacturing a photo diode of a CCD image sensor, comprises the steps of forming an oxide layer on an N<-> type substrate; implanting N<+> ions into a selected portion of the N<-> type substrate to form a N<+> type buried region; growing a P type epitaxial layer between the N<-> type substrate and the oxide layer; forming P<+> type channel stop regions by implanting P<+> ions into selected portions of the P type epitaxial layer; and forming a N<+> type photo diode region and a N<-> type well between the P<+> type channel stop regions, the N<+> photo diode being formed over the N<+> type buried region. <IMAGE>
Patent GB-2261310-A (GB)
Title: Adjustable display sign using resilient mountings
Inventor: ORD GRAEME JOHN
IPC: G09F9/37
Filed: 1991-11-08
Abstract: A variable display sign (10) wherein the information to be displayed by the sign comprises one or more characters, e.g. alphanumeric characters, the or each character being composed of one or more elements selected from a predetermined array of such elements. A non-transparent fascia (15) is provided with said character elements of clear form. Each character element has associated therewith an elongate member (20) having the form of an angle bracket, the two limbs (21, 22) of the bracket having different light transmission characteristics. Mounting means mount each elongate member (20) rearwardly of its associated element to be resiliently movable between a first position in which one limb (22) is in substantial registry with said element to provide a first light transmission characteristic and a second position in which the other limb (22) is in substantial registry with said element to provide a second light transmission characteristic.
Patent GB-2252018-A (GB)
Title: TDM digital speech signal coding
Inventor: ROLLETT JOHN MORTIMER
IPC: H04B7/26
Filed: 1992-01-14
Abstract: Speech signals are coded on a frame-by-frame basis, the resuming information is coded by a convolutional coder 4 and the coded bits of each frame are distributed (6-22) amongst a plurality of time slots within a TDM structure comprising time slots of relatively shorter duration separated by intervals of relatively longer duration. The coded constraint length of the convolutional code is less than or equal to the number of time slots over which the coded bits of one frame are distributed, where the coded constraint length is the smallest number of bits that always includes all output bits which are a function of a given uncoded bit. A coding system using the signal is resistant to random and burst errors. <IMAGE>
Patent GB-2252875-A (GB)
Title: Liquid boiling vessels
Inventor: TAYLOR JOHN CRAWSHAW
IPC: H01H3/32
Filed: 1992-01-17
Abstract: An electrically heated liquid boiling vessel (1) comprises a thermally sensitive control arranged in a lower part of the vessel and responsive to overheating of the heater element (26) to open a set of electrical contacts to interrupt the power to the heater (26). A bimetallic actuator (80) which is responsive to steam is arranged at an upper part of the vessel and is mounted on a first elongate member (84). A movable part of the actuator (80) co-operates with a second elongate member (38) slidable relative to the first elongate member (84) and connected to a preloaded spring mechanism such that when the actuator (80) operates, the spring mechanism trips to open the set of contacts to interrupt the electrical supply to the heater element (26). In a cordless appliance, the openable contacts comprise the terminal pins of the appliance and in a corded appliance the contacts comprise leaf springs engageable with the terminal pins. Upon actuation of the bimetallic actuator (80), a closure is moved to prevent further vapour from reaching the actuator (80). An on-off knob 95 cannot be moved from the off to the on position unless a lid is properly positioned on the vessel. If a bimetallic actuator (31) responsive to overheating of the heater (26) fails, a back up protector (50) including thermally deformable material operates. <IMAGE>
Patent GB-2253454-A (GB)
Title: Safety device for a metal baling machine
Inventor: BRAMLEY ALAN GEOFFREY
IPC: F16P1/02
Filed: 1992-02-28
Abstract: Safety apparatus for a metal baling machine comprising a rigid table (30) the table being of dimension to completely surround crushing mechanisms (20, 18) of the metal baling machine and being of such a height such that an operator is prevented from falling into the machinery. <IMAGE>
Patent GB-2265018-A (GB)
Title: Builders collapsible set square
Inventor: LYON ERIC
IPC: G01B3/56
Filed: 1992-03-06
Abstract: This invention of a builders collapsible set square comprises of two box section legs 1 and 5 being connected together at one end by means of a hinge pin 3 and brackets 4 enabling the legs to be opened to 90 degrees and closed parallel to each other. A pair of locking arms 6 are provided to lock open the legs at 90 degrees. <IMAGE>
Patent GB-2266048-A (GB)
Title: A brush
Inventor: HUANG YANCEY
IPC: A46B9/02
Filed: 1992-04-08
Abstract: A brush, e.g. a toothbrush, shoe brush or scrubbing brush has a base (1) and a plurality of bristles extending therefrom. The bristles are arranged in rows (7) of shorter bristles alternating between rows (6) of longer bristles to facilitate cleaning of crevices between eg teeth and plaque removal. <IMAGE>
Patent GB-2268564-A (GB)
Title: Installation of submarine pipelines
Inventor: CORBISHLEY TERENCE JEFFREY
IPC: F16L9/02
Filed: 1992-04-14
Abstract: The invention provides a means of installing by towing and a novel installed submarine pipeline system, whilst also providing mechanical protection. Where required the invention may also provide thermal insulation. The ability to tow is provided by containing a pipeline 1, 2 or group of pipelines within a single or group of elongate outer jackets 4, 5 the annulii around the pipe or pipes and within the jacket or jackets being packed with hollow spherical material 10 having a specific gravity less than that of water, The assemblage of jacket and microspheres forms a compliant structure possessing mechanical strength, impact resistance and resistance to collapse when subjected to hydrostatic pressure. When installed on the seabed, the annulii formed by the jacket and pipes and between the void space between and around the spherical material is flooded with seawater or other suitable liquid or filling material to form an impact absorbing structure. <IMAGE>
Patent GB-2257577-A (GB)
Title: Shielded electrical connector.
Inventor: NAKAMURA MASAHIKO
IPC: H01R13/6582
Filed: 1992-05-28
Abstract: Each part of a two-part shield (6, 7) latches into the other via latches (67) and corresponding keepers (77, one of each is shown). The shield is retained on the body of an electrical connector (1) by latches (65, 75) on the shield and corresponding keepers (17) on the connector. The shield is located by engagement of fingers (62a, 72a) in grooves (16, one is shown) in a peripheral edge frame (15) of the connector body. Projections (79) of one shield half (7) may lie inside a cable grip (69a, 69b) of the other half (6) when assembled to further secure the halves together. <IMAGE>
Patent GB-2257223-A (GB)
Title: Resin bonded expansion assembly
Inventor: CALANDRA JR FRANK
IPC: E21D20/02
Filed: 1992-06-29
Abstract: The frusto-conical expander plug 18 has longitudinal grooves 44 to permit the flow of resin adhesive from a cartridge 76. Ribs 54, 56 are formed alongside two of the grooves 44 and engage in slots 72 of the expandable shell 30 to align the grooves 44 with the slots 72 and also to prevent relative rotation. Pin 52 shears to allow the plug 18 to be pulled into the expandable shell 30 only when the resin begins to harden. Cross slots are formed in the head end of the plug 18. <IMAGE>
Patent GB-2270779-A (GB)
Title: Back-up database system
Inventor: O'SULLIVAN STEPHEN
IPC: G06F11/20
Filed: 1992-09-17
Abstract: A method is described for transfer of data and programs from a live computer database system 1 to a back-up computer database system 2 and for maintenance of the back-up computer database system 2 in which the hardware and operating systems of the two system is different Program lines of each program module are converted into a format compatible with the back-up system and are tested on the back-up system. An incremental file (figure 3, not shown) is created in the live system 1 and this is written to in parallel as data is received in the live system 1. The incremental file is transferred to the back-up system 2 at pre-set intervals and integrity checks are carried out in parallel on the live and back-up systems. At a later stage, efficient balancing tests are carried out on both systems to verify that data stored in both systems is the same. <IMAGE>
Patent GB-2272462-A (GB)
Title: Masonry block
Inventor: LEVER PHILIP
IPC: E04B2/18
Filed: 1992-11-13
Abstract: A masonry block 2, comprises keying formations 16, 18, adapted to engage complementary keying formations provided on a block situated adjacent the block, in such a manner as to obviate the need for a mortar joint between the two. The blocks may be of different depths, allowing staggered blocks horizontally, and the blocks have an insulating facing layer 6. Apertures 22, 24 allow some vertical columns of blocks to be filled with, e.g. concrete, and solid blocks are employed, e.g. adjacent openings in walls formed from the blocks.   <IMAGE>
Patent GB-2263890-A (GB)
Title: Vehicle washing machine
Inventor: BYFORD ROBERT
IPC: B60S3/06
Filed: 1993-01-13
Abstract: A vehicle washing machine comprises a wheeled chassis (12) having a rotatable brush (30), one or more hollow members (20) each having an array of nozzles, detergent tank and water tank (42, 44) or water and water and detergent mixture tanks, and a power source comprising an internal combustion engine (26) which drives either a generator (24) or an hydraulic pump. <IMAGE>
Patent GB-2274730-A (GB)
Title: A mantissa addition system.
Inventor: HOREN YORAM
IPC: G06F7/00
Filed: 1993-01-30
Abstract: A mantissa addition system comprises a mantissa adder for adding two mantissas to provide a result that comprises a plurality of bits arranged in sub-groups. The mantissa addition system further comprises a flag generator for generating a flag for each sub-group: each flag having an inactive state only when at least one of the bits in the respective sub-group is non-zero. A first shifter shifts the groups of bits of the addition result so that the sub-group of bits corresponding to the detected most significant flag is the most significant group. A second shifter shifts the plurality of bits of the shifted result so that the detected most significant non-zero bit is the most significant bit. The output of the second shifter represents the normalised addition result. <IMAGE>
Patent GB-2277361-A (GB)
Title: Manufacture of camshafts
Inventor: SLEE ROGER HARVEY
IPC: F16D1/08
Filed: 1993-04-21
Abstract: A camshaft (10) is formed from a plurality of individual chill cast cams (12) and an elongated shaft (24). Each cam (12) has a hole therethrough which has a groove in its surface at a predetermined angular position. The shaft (24) has a plurality of cam receiving portions (24a) thereon which are spaced along the shaft and each an outer peripheral surface which is a close fit in the hole in one of the cams (12). The outer peripheral surface has a groove therein at a predetermined angular position. The grooves cooperate in forming a passage which receives a wedge member (32) to hold the cam (12) in a fixed orientation relative to the shaft (24). <IMAGE>
Patent GB-2273157-A (GB)
Title: Immunological detection/separation using a plurality of immobilised binding agents
Inventor: ABUKNESHA RAMADAN ARBI
IPC: G01N33/543
Filed: 1993-11-29
Abstract: A separation method, for use in an immunological method for the detection of a plurality of entities, comprises the use of an auxiliary species provided on a support material and the use of an additional immunological species (as defined) provided on a support material. The process may be used in "multi-entity detection" (e.g. "multi-analyte species detection").
Patent GB-2284491-A (GB)
Title: Error prevention and detection in a transaction data processing system
Inventor: MALLIN LIAVAN
IPC: G06F11/32
Filed: 1993-12-01
Abstract: A transaction data processing system has a number of processors (6, 20, 24, 25, Fig. 1) connected to databases (7, 8, 9). The processors are arranged to carry out various technical steps to ensure that data integrity is maintained. In one such step, on inputting of data, pixel control signals are generated for display of a panel 40 to allow a user to indicate possible errors in different aspects of the input data. Processing simplicity, memory efficiency and clarity for the user are achieved by generating, 47, a binary number signal according to the sequence of indicators 42 in a column of input cells. A decimal, number is generated, 48, from this signal to indicate the possible errors and is stored in an associated data record, 49. In another such step array structures are generated in which cells are associated with physical memory locations of records in databases for use in error detection processing (70, Fig 6) for verification of index files (30). A buffer file (10), an audit database structure (9) and a summary database structure (8) are used to ensure integrity of data updates. <IMAGE>
Patent GB-2273659-A (GB)
Title: Absorbent article, e.g. a sanitary towel or pad
Inventor: NAKANISHI HIROFUMI
IPC: A61F13/56
Filed: 1994-01-27
Abstract: An absorbent article includes a liquid permeable sheet 2, a liquid impermeable sheet 3 and a liquid retentive absorbent element 4 interposed therebetween which together constitute an elongate absorbent body, and a fixing device 17 which is secured to the liquid impermeable sheet 3. The fixing device 17 includes two pre-formed fixing elements 17C adapted to hook around the edges of the crotch portion of a pair of briefs (Fig. 16). A method of forming the fixing device is described with reference to (Figs. 17 to 19). The elements (17C) may be provided with gripping projections (17F, Fig. 21) or with adhesive areas (18, 19, Figs. 22 and 23). Modified forms of the overall fixing device are described with reference to (Figs. 24 to 27). <IMAGE>
Patent GB-2290311-A (GB)
Title: Winding thread onto a card or reel
Inventor: SHEEHY TERENCE JAMES
IPC: B65H75/18
Filed: 1994-06-17
Abstract: An adaptor for use in winding embroidery silk or like thread onto a card, comprises a tubular sleeve 20, Fig. 2, having bore 22. The upper end of the sleeve 20 is formed with a transverse slot 26. A card 10, Fig. 1, onto which thread may be wound is formed at its lower edge with a pair of notches 16 separated by tongue 18. The sleeve is fitted over the rotatable bobbin winding spindle of a sewing machine and the card is inserted into slot 26 such that its tongue engages in bore 22 and wall portions of the sleeve 20 engage the notches 16. For winding onto a reel, a post (Fig. 4, not shown) is inserted into the sleeve, the part having a split end to retain the reel. <IMAGE>
Patent GB-2277454-A (GB)
Title: Apparatus for playing a game
Inventor: BRYSON PAUL HOWARD
IPC: A63F3/04
Filed: 1993-01-04
Abstract: The invention in one embodiment relates to an apparatus for playing a game which may comprise a dice (10) or a series of tiles (20) which may be used as a random number indicator for use with existing board games to enhance play. Play is enhanced by the fact that the dice has indicating means disposed on various faces which permit either forward or backward movement. That is to say negative numbers as well as positive. In a preferred embodiment a dice has twenty faces and has an indicator for zero, or selection indicator of possible movement. According to another aspect the invention comprises a playing surface (Figs. 24, 25) which is adapted to be used with a dice capable of displaying random forward or backward motion indicators. <IMAGE>
Patent GB-2280459-A (GB)
Title: Device for retrieving elements from well bores
Inventor: MCGARIAN BRUCE HERMANN FORSYTH
IPC: E21B31/20
Filed: 1994-07-07
Abstract: A retrieval device, being part of a packer-miller assembly, comprises a central mandrel (33), an apertured sleeve (7), an annular cam member (17) and balls (36). The components are biased by a spring (27) into the configuration of Figure 2A until the device enters the bore of the element (40) to be retrieved, whereupon the sleeve (7) is displaced upwardly to allow the balls to run up cam surfaces (24) to reduce the diameter of the device to allow it to enter the element (40) bore. A collar (8) is released, e.g. by shear bolts, to allow the annular cam member (17) to move downwardly to release the device in the event that retrieval has to be aborted. <IMAGE>
Patent GB-2280751-A (GB)
Title: Multi-DETF load cell
Inventor: CHESHMEHDOOST ABDOLREZA
IPC: G01L1/10
Filed: 1994-08-03
Abstract: A load cell comprises a plurality of double ended tuning forks (DETFs) lying axially parallel between two end members 18, each DETF having an exciter means and a frequency pickup means, a load to be measured being applied across the two end members whereby the change in resonant frequency upon application of said load is a measure thereof. A modified load cell (Fig. 8, not shown) has a double ended tuning fork (DETF) fixed across an open frame and means for applying a load to be measured across the frame, wherein the frame acts to attenuate the load and to apply only a reduced but proportionate load across the DETF. <IMAGE>