baber/WOPTO huggingface dataset:
Patent GB-2248781-A (GB)
Title: Retentive dental pin
Inventor: FILHOL STUART JULIAN
IPC: A61C5/35
Filed: 1991-10-18
Abstract: The pin comprises in sequence a lower portion 2 which can be secured within the dentine of the tooth, a head portion 3 to which a tooth restoration such as a filling, crown or enamel film may be secured, a detachable connection 4, and a fixing portion 5 attached to the head portion by the detachable connection, the head portion being connected to the lower portion by dentine-engaging means 6 comprising an inwardly and downwardly extending surface carrying grooves shaped to screw into the dentine. In an alternative embodiment, the head portion additionally comprises a grooved, narrow, elongate portion which is upwardly extending and is joined to the detachable connection 4. <IMAGE>
Patent GB-2260740-A (GB)
Title: Fluid pumps in propeller driven craft
Inventor: WORTHINGTON PAUL BARRIE
IPC: B63H5/15
Filed: 1991-10-25
Abstract: A device for pumping fluid in propeller driven craft comprises a substantially cylindrical open-ended shroud surrounding and coaxially aligned with the propeller 6, the internal diameter of the shroud varying along the length thereof. At least one fluid pipe 8 is provided, the outlet 10 of which is located on the internal surface of the shroud at the region 12 thereof with minimum internal diameter. The negative pressure induced at the minimum diameter region of the shroud on rotation of the propeller produces a pressure drop at the outlet of the or each fluid pipe. The device may be used for a number of different purposes, including the pumping of water from water-lubricated bearings, ventilation of the craft and as part of a ballast system for the craft. <IMAGE>
Patent GB-2262010-A (GB)
Title: CCD imaging device having two merged readout registers
Inventor: POOL PETER JAMES
IPC: H04N5/361
Filed: 1991-11-27
Abstract: A charge-coupled device (CCD) has a light-sensitive image section 40 and two readout registers 42, 44 situated at opposite ends of the image section, the device being arranged so that light-induced pockets of charge in the image section may be read out along either of the two registers, and wherein the outputs of the two registers are merged to provide one common output 55 for the device. In operation while one readout register outputs image information, the other outputs dark current information. <IMAGE>
Patent GB-2257997-A (GB)
Title: Method of straight hole drilling
Inventor: CLAYTON CHARLES H
IPC: E21B17/10
Filed: 1992-09-16
Abstract: A method comprising matching a bit 12 and a stabiliser 22 in which the maximum outer diameter of the bit 12 and stabilizer 22 have been measured and machine to be within predetermined tolerances. The maximum stabilizer diameter is in the range of.003-.025 inches in diameter less than the measured bit O.D. Preferably, the maximum stabilizer diameter is in the range of.005-010 inches in diameter less than the measured bit O.D. The matched bit 12 and stabilizer 22 are used in drilling a well hole as straight as possible. <IMAGE>
Patent GB-2262377-A (GB)
Title: Driving a liquid crystal display
Inventor: HIDAKA KIYOSHI
IPC: G02F1/133
Filed: 1992-12-01
Abstract: An enlarged image is displayed on a liquid crystal display having row and column electrodes by selecting a single line of column electrodes (COL1 to COL3) according to the display data and at the same time selecting a plurality of adjacent row electrodes (ROW 1 to ROW 10). A control circuit (43, 52, 53) produces a display control signal comprising a plurality of pulses during a latch period that latches the display data. A column electrode driving section (11) latches the display data in a latch circuit (412) in response to the display control signal and based on this latched data drives the column electrode. Simultaneously, a row electrode driving section (12) drives the plurality of row electrodes also in response to the drive control signal. <IMAGE>
Patent GB-2263254-A (GB)
Title: Business form or mailer with external self-contained address recording label
Inventor: SMITH JAMES CHRISTIE
IPC: B41L1/26
Filed: 1993-01-15
Abstract: A business form or mailer has an external face (10) provided with a self-contained address-recording adhesive label (28). Internally there may be copying portions (e.g. using carbon paper or carbonless sheets (10, 14)) which are out of register with the label portion (28). Thus impact printing of the external face (without application of ink or other colour-producing component) enables confidential information to be recorded internally (A, C) (by avoiding the label portion) and address information to be recorded externally (B) (and optionally internally as well) (by printing on the label portion). <IMAGE>
Patent GB-2269426-A (GB)
Title: Fuel injection pumps for internal combustion engines
Inventor: PISCHINGER ANTON
IPC: F02M59/26
Filed: 1993-07-30
Abstract: A fuel injection pump comprises a pump piston (7) reciprocable in a cylindrical bore (5) of a cylinder liner (3) defining a pump working chamber (11), a constant-pressure valve (15) sealed relative to the cylinder liner (3), and a connection part (17) for delivering fuel pumped through the valve (15) to a pressure line (13) leading to an injection valve (21). The liner (3), the pressure valve (39) and the connection part (17) abut at sealing surfaces (72) and are clamped end-to-end by tie-rods (65) and a flange (74). The sealing surfaces (72), on the valve member (39) and the connection part (17) are provided on respective tubular extensions (70, 69). The dimensions and the dispositions of the sealing surfaces are such that movements of the sealing surfaces (72) relative to one another, normally caused by differential expansion, is reliably avoided so that wear at the sealing surfaces is reduced or eliminated. <IMAGE>
Patent GB-2281668-A (GB)
Title: Radio transmitter with power amplifier linearizer
Inventor: HOROWITZ IIAN
IPC: H03G3/20
Filed: 1993-08-20
Abstract: This invention relates to a radio transmitter having a power amplifier and a linearizer arrangement, for example Cartesian feedback, for compensating for non-linearity in the power amplifier. A training signal is applied to the amplifier (36) and the linearizer arrangement is adjusted during a training mode of operation. A look-up table (23) is provided for storing predetermined operating condition adjustment parameters. According to an operating condition input (e.g. frequency, temperature) a control microprocessor (21) selects operating condition adjustment parameters during the training mode and adjusts the training signal to compensate for loop gain variations during the training mode. <IMAGE>
Patent GB-2271429-A (GB)
Title: Digital multi-meter
Inventor: YONEYAMA GEN
IPC: G01R15/12
Filed: 1993-09-27
Abstract: The meter comprises a pair of probes 20a, 20b for connection to an input signal 90, an A/D converter 35 for supplying a digital output signal 91 to an AC/DC determining unit 36 and a switching unit 32 which is automatically changed over when the unit 36 determines that the input signal is an A.C. signal. The switching unit is normally in a position for measuring D.C. signals but when the circuit detects that the input signal has exceeded both positive and negative threshold valves, the switching unit is changed over for A.C. measurement. The meter also enables frequencies to be measured and has grooves on its periphery for storing the probes and leads. <IMAGE>
Patent GB-2271359-A (GB)
Title: Graphite electrode for use in an electrolytic fluorine cell
Inventor: LEWIN ROBERT GLYN
IPC: C25B11/12
Filed: 1993-10-05
Abstract: The electrode comprises a substrate 12 comprising carbon, and a layer on the substrate comprising a multiplicity of graphite particles 18 bonded in a non-graphitic carbon layer 16 to the substrate. The carbon layer 16 comprises vitreous carbon. <IMAGE>
Patent GB-2274010-A (GB)
Title: Coin freed gaming or amusement apparatus.
Inventor: MCLAUGHLIN NIGEL KEITH
IPC: G07F17/32
Filed: 1993-11-19
Abstract: A coin-freed gaming or amusement apparatus comprises visual display means 1 and lens means 3 arranged over the visual display means and adapted to modify the appearance and/or apparent size of the display means. The use of a lens 3 enables the apparent size of the visual display 1 to be changed to a size suitable for the artwork 5 provided on the external fascia 4 of the apparatus. The lens may be a spherical lens or a Fresnel lens. <IMAGE>
Patent GB-2274136-A (GB)
Title: Shrouded shackle lock construction
Inventor: LEBRECHT HORST
IPC: E05B9/08
Filed: 1994-01-12
Abstract: A shrouded shackle lock having two shell halves (11, 12) is engaged together using a lock retainer ring (56) welded to one shell half and thereafter bent over and around the other shell half (at 58). <IMAGE>
Patent GB-2286457-A (GB)
Title: Inspection method using area of interest (AOI) analysis
Inventor: SCHWARTZ NIRA
IPC: G01N21/90
Filed: 1994-02-03
Abstract: A technique for detecting defects in stationary products or in products (for example containers) moving on a production line (102, Fig 1) by analyzing areas of interest (AOIs) of their modified images uses a matrix or linescan camera (104, Fig 1) for taking images of products (102). The product's dimensions are measured with accuracy, and the existence and alignment of caps and seals is determined. The technique is much faster and more accurate than current techniques and is based up on an analysis of the AOIs and their discontinuities. (209 Fig 1). Carefully selected AOIs of the modified image (2 to 8, Fig 2) are saved in the memory of a computer (106, Fig 1). The method also includes loading look-up tables to modify the gray levels of the products; saving AOIs in memory to be analyzed (Fig 1); analyzing AOI data, counting pixel discontinuities, etc. The results can be used to measure product ovality, check caps and seals on products, and check changes of fluid or content levels in containers. Leaks in caps and seals of bottles can be determined by monitoring the level of fluid in a bottle whilst applying a force to the bottle.   <IMAGE>
Patent GB-2275595-A (GB)
Title: Support means
Inventor: RIGBY MICHAEL HUGH
IPC: A01G17/06
Filed: 1994-02-28
Abstract: The support means e.g. to support growing plants or to provide fencing comprises a housing 10, 30 having means to accommodate and grip a main support member 14 and being apertured 11, 28, 29 to receive one or more further support members 15. The housing 10 may be a cylindrical sleeve 15 containing a resilient filling 12 or may be formed from a strap (20, Figure 5) with ribs (23, 24) to grip the main support member. Other variations and uses are disclosed. <IMAGE>
Patent GB-2287554-A (GB)
Title: Projection screen
Inventor: ORR EDWINA MARGARET
IPC: H04N13/363
Filed: 1994-03-15
Abstract: A projection screen (2), with an achromatic response comprises a composite element consisting of a focusing element (3) e.g. a Fresnel lens, with positive optical power combined with a diffraction grating (4), a louvred screen (5) and a diffuse holographic optical element (6). The projection screen may be used in an autostereoscopic system and element (6) may have more than one diffuse zone if used in projection of similar stereoscopic viewing zones. <IMAGE>
Patent GB-2290507-A (GB)
Title: Bicycle chain transmission assembly
Inventor: LAN JIN-HUA
IPC: B62M9/04
Filed: 1994-06-16
Abstract: The transmission assembly has a first and second drive sprocket 31, 42 mounted respective ends of a drive axle 221 driving first and second driven sprockets 35, 46 mounted on respective ends of a driven axle. Paired with each driven sprocket is an idle sprocket 34, 44 and first and second drive chains 37, 47 can be selected to engage with the first driven sprocket 35 and the second idle sprocket, 44, or the first idle sprocket 34 and the second driven sprocket 46 respectively, so increasing the number of selectable gear ratios. <IMAGE>
Patent GB-2292197-A (GB)
Title: Installing measuring or control devices by self-sealing couplings
Inventor: DOYLE JAMES
IPC: F16L55/07
Filed: 1994-08-10
Abstract: Use of self-sealing couplings 9, 6 and 10, 7 in place of conventional isolation valves facilitates installation and removal of inline devices such as fluid control valves or flow meters 11, and optionally provides for prevention of reverse flow. The diagram shows how two such couplings 9, 6 and 10, 7 may be combined in a single concentric meter receptacle, which is provided with means of clamping it to a service line which crimp-seal the line between tee connectors 4, 5, so that a water meter 11 may be retrofitted without difficulty to an existing underground service line 2 within the restricted access offered by a narrow meter pit. When coupling parts 9, 6 couple a valve is displaced to allow fluid connection between line 2 and meter or control device. Fluid then flows out (downstream of meter or control device) through a second coupling 10, 7 by forcibly displacing the valve in the second coupling. <IMAGE>
Patent GB-2293117-A (GB)
Title: Mixing of chemical reaction components using ultrasound
Inventor: RAY RONNIE AURUN
IPC: B01F11/02
Filed: 1994-09-13
Abstract: Continuous permeabilisation of cells during intracellular nucleic acid chemical reaction is performed using ultrasound. An ultrasound wave generating block 1, driven by a motion generator 4, is disposed over a temperature-transmitting surface 2 of a temperature-controlling surface 3. Samples are arranged in chambers 8 of the block 1. The technique can be used for the polymerase chain reaction (PCR) and primed in situ extension (PRINS). <IMAGE>
Patent GB-2319086-A (GB)
Title: Testing a sample by nuclear resonance
Inventor: SMITH JOHN ALEC SYDNEY
IPC: G01R33/46
Filed: 1994-09-26
Abstract: A method of detecting the presence of a particular substance in a given sample comprises exciting nuclear resonance in the substance and detecting the response signals from the substance using a probe 14, and adjusting the probe in dependence on the character of the sample. The adjustment may be by means of altering the probe impedance, returning the probe or adjusting its Q-value. signals by blanking detection for a short time after excitation and using two different types sample detection can be used to adjust the probe.
Patent GB-2285661-A (GB)
Title: Multistage ejector system
Inventor: NAGAI SHIGEKAZU
IPC: F04F5/22
Filed: 1994-02-24
Abstract: In a multistage ejector system provided with ejectors in a multistage, a high-pression assembling of a plurality of nozzles and diffusers is made unnecessary, assembling of these parts is easy and these parts can be formed at a low cost. A body (2) of the multistage ejector system has a grooved structure provided in the thick bottom portion thereof with a through bore (5) into which a nozzle body (12) and a multistage ejector structure (14) are inserted. The multistage ejector structure (14) is provided with diffuser-nozzles (15a, 15b) and a final-stage diffuser (15c) which are provided coaxially with an ejection port (13) of a nozzle body, larger-diameter portions (16a, 16b) having air suction ports (17a, 17b) and formed among the parts (15a, 15b, 15c), and flanges (18a - 18c) provided on the outer circumferential surfaces of the parts (15a - 15c), with these components being integrally molded. Vacuum generating chambers (21a - 21c) defined by the flanges are formed among the inner surface of the through bore in the system body and the outer surfaces of the nozzle body and multistage ejector structure which are fitted air-tightly in the through bore, and these chambers communicate with a suction port (31) via a plurality of suction passages provided in the through bore in the system body. <IMAGE>
Patent GB-2298144-A (GB)
Title: Three-dimensional chess
Inventor: TUCKER CHRISTOPHER VIVIAN
IPC: A63F3/02
Filed: 1994-11-30
Abstract: Three-dimensional chess is played on an array of between two and eight 8x8 chequerboards with between one and four standard sets of chessment.
Patent GB-944540-A (GB)
Abstract: 944,540. Electrolytic capacitors. TELEGRAPH CONDENSER CO. Ltd. April 24, 1962 [June 19, 1961], No. 15572/62. Drawings to Specification. Heading H1M. A method of manufacturing a solid electrolyte capacitor comprises the steps of forming a dielectric film upon the surface of a film forming electrode (which constitutes the anode of the capacitor), coating the film with a solution comprising an organic charge-transfer complex compound having a resistivity in the dry state and at room temperatures not exceeding 1000 ohm-cm., removing the solvent from the solution so as to leave a solid layer of the said organic compound, which constitutes the cathode layer, on the dielectric film, and covering the layer of organic compound with an electrically conductive material. By a chargetransfer complex is meant the complex resulting from the interaction of two molecules in the electron donor sense, one molecule acting as an electron donor, the other as an electron acceptor. Particularly useful charge-transfer complexes are perylene-bromine and perylene-iodine complexes, which have low resistivities (approx. 8 ohm-em. at room temperature), but the Specification lists a number of other suitable complexes whose resistivities are in the appropriate range. Suitable solvents are hydrocarbons, alcohols, chloroform and acetonitrile, which have boiling points below 125‹ C. A particularly suitable anode material would be a porous tantalum pellet with an anode film provided by formation by electrolysis in a phosphoric acid electrolyte, but the Specification also refers to other film forming metals-aluminium, niobium and titanium, and other structures such as foil and wire. The contact cathode electrode may be silver on a foundation layer of graphite, and the entire unit may be housed in a metallic can.
Patent GB-2290238-A (GB)
Title: Golf club
Inventor: HONMA YUKIHIRO
IPC: A63B53/02
Filed: 1995-01-03
Abstract: A golf club having a head made of metallic material such as aluminum, stainless steel, titanium or the like is provided with a shaft sleeve (2) made of non-metallic material such as fiber reinforced plastic, wood or the like mounted on a tip end portion of a shaft or on a shaft insertion portion (3a) of a head (3). <IMAGE>
Patent GB-2286422-A (GB)
Title: A locking and adjusting arrangement for precision optical instruments
Inventor: GARDAM ALLAN
IPC: G02B7/00
Filed: 1995-02-02
Abstract: A locking and adjusting arrangement for precision optical instruments comprises first and second mountings 56, 58 defining respective opposing first and second concave surfaces 60, 62 and a member 64 for location between the mountings and defining oppositely directed convex surfaces 66, 68 for engaging respective concave surfaces. Adjustment is provided by loosening nut 74 of fixed pin 72 and rotating member 64 about a vertical axis passing through the engaging surfaces. Linear adjustment along the vertical axis is achieved by means of shim 80 and positioning relative to the other two axes is accomplished by means of an eccentric hole 84, which is a tight fit on pin 72, in plate 82. The member 64 and first and second mountings 56, 58 are locked along the vertical axis by nut 74; the first mounting 56 and plate 82 being fixed, with respect to the other axes, to pin 72 by adhesive. <IMAGE>
Patent GB-2298949-A (GB)
Title: Safety device
Inventor: JONES DEAN ANTHONY
IPC: G09F19/22
Filed: 1995-03-17
Abstract: A safety device, particularly for guiding persons to an exit under conditions of poor visibility comprises a strip of material having a raised pattern e.g. of arrows, on its surface to enable persons through tactile contact with the patterns, to determine the route to the nearest exit. The device may be made of a fluorescent material. The strip of material is mounted inside a building.
Patent GB-2289327-A (GB)
Title: Movable louver window
Inventor: ASHIDA MASAKI
IPC: E06B7/084
Filed: 1995-04-03
Abstract: A movable louver window has a frame body A and a plurality of double-vane assemblies 30 each having first and second louver vanes 31, 32 and a pair of left and right coupling members 33 coupling the first and second louver vanes. A plurality of double-vane assemblies are mounted within the frame body. Air-tight and water-tight sealing between the frame body and the double-vane assemblies is established by seal members 5, 10, 11 and (29, figure 4) which are provided over the entire circumference of the frame body and continuously connected with each other. The pivot centre (37a, figure 1B) of each vane assembly 30 is positioned interiorly of the first vane 31 and the positional relationship between vane assemblies 30 is defined by P3 < P2 + P1 and  theta 2 >  theta 1 (see figure 1 and claim 13). <IMAGE>
Patent GB-2301161-A (GB)
Title: Fixing of tubular rails to posts
Inventor: SUMMERS DENNIS ARTHUR
IPC: E04F11/18
Filed: 1995-05-22
Abstract: A combined mounting and blanking spigot (17) for providing fixing between a rectangular cross-section tubular rail (11) and a post (13), comprises a solid member having a height and width slightly less than that of the interior dimensions of the rail (11) and a length sufficient to blank a gap between the rail (11) and post (13), the spigot (17) being inserted in the open end of the rail (11) either so as to be pivotable about the bolt (19) or so as to be non-pivotable. The spigot (17) has one planar end (17a) for attachment to the post (13) and one planar side (17b), the other end (17c) and other side (17d) being formed to be arcuate (17e) or cut away at their adjacent corner. A railing unit comprises at least two rails (11) each attached to a post (13) by a spigot (17).
Patent GB-2301278-A (GB)
Title: Sunshade for an infants car seat
Inventor: FISHER GAYNOR MARIE
IPC: A47D15/00
Filed: 1995-08-22
Abstract: A sunshade for an infant car seat of the type which has a carrying handle. The sunshade 8 has a top cover and two side screens 6 and is characterised in that it is mounted over the seat without recourse to using the handle as part of the supporting means. In the example shown, a pocket 4 at the back of the shade engages over the back of the child seat and a stretch strap 5 loops around the back of the head restraint 9 of the main vehicle seat. In an alternative embodiment the cover is partially supported by means of a clip which is attachable to the upper run of the adult seat belt.
Patent GB-2294358-A (GB)
Title: Pumpless fluid cooling circuit for laser
Inventor: REIMER PETER
IPC: H01S3/04
Filed: 1995-10-11
Abstract: A cooling device for a pulsed laser includes a cooling circuit with a cooling medium 5 whose volume is increased by heating due to the pulsed excitation process. The coolant is circulated over the surface of the active medium 2. Inlet 6 and outlet 7 valves are provided in the cooling circuit, and are dimensioned in dependence on the operating parameters of the laser such that circulation of the cooling medium takes place in the cooling circuit due solely to the increase of the cooling medium volume in the excitation process. The cooling circuit may include a reservoir 8 comprising active 12 and/or passive cooling means for the coolant medium. <IMAGE>
Patent GB-2308818-A (GB)
Title: Remote control platform
Inventor: HAYWARD JOHN DEWES
IPC: A63H30/00
Filed: 1996-01-04
Abstract: A remote controlled mobile platform comprises wheels, motors, batteries and guidance system. It can be fixed a variety of toys and other objects by means of locating points in order to move them around. The platform has four wheels and can be activated by radio, infra red or computer. By means of hand controllers two or more platforms can be operated at the same time so that, for instance, toys may be raced against one another. Children can use the platform to build movable vehicles. Also, the platform can be used with various toy block construction systems. Existing electronic remote control toys have to have their own individual wheels, motors, batteries and controls but with this invention a range of toys and other objects can be fitted to the platform in turn.