baber/WOPTO huggingface dataset:
Patent GB-2173199-A (GB)
Title: Dental composite resin composition
Inventor: YOSHIDA BUNSAKU
IPC: A61K6/884
Filed: 1986-03-27
Abstract: A dental Composite resin composition comprises as main components a polymerizable monomer, an inorganic and/or organic filler, a platinum-color element powder and/or a platinum-color alloy powder, and a polymerization catalyst. The dental composite resin composition of the present invention is useful as a filling material for repairing a tooth cavity, has a platinum-color luster and exhibits an excellent abrasion resistance as well as an excellent X-ray contrast.
Patent GB-2189942-A (GB)
Title: Transmission-line bias T
Inventor: MINNIS BRIAN JOHN
IPC: H01P1/20
Filed: 1986-04-30
Abstract: A TEM-mode transmission line comprising an elongate conductor (3) and at least one ground plane (e.g. microstrip) has a short-circuited shunt stub (4) connected to the line for supplying a bias voltage, the stub (4) having a characteristic impedance which is substantially greater than that of the line at the point where the stub (4) is connected. To provide a broad operating bandwidth, the line has a substantial decrease in characteristic impedance in one or both senses along the line towards said point provided by one or a succession of progressively lower impedance-transforming sections (5, 6); the stub and the or each section have the same effective electrical length which suitably is a quarter wavelength at the centre of the operating frequency range. The bias T may be designed as a band-pass filter, and with a succession (5) of three impedance-transforming sections can provide a bandwidth of 10:1. <IMAGE>
Patent GB-2176316-A (GB)
Title: Fluid flow control apparatus
Inventor: ASHCROFT ANDREW JOHN
IPC: G05D7/03
Filed: 1986-04-30
Abstract: Apparatus for controlling the flow of water through a pipe (26) including a valve (29) and an orifice plate (37) and supplying a water distribution system comprises a governor (1) actuating a pilot valve (14) in a servo system controlling the valve (29). The governor (1) has two diaphragms (5 and 6) linked by a tension spring (7) the extension of which is determined by the rate of flow through the orifice plate (37). The first diaphragm (5) operates a valve member (13) of the pilot valve (14) and is subjected to the differential pressure caused by flow through the orifice plate (37). The second diaphragm (6) is loaded by a compression spring (8) and its displacement is dependent upon the control pressure at a tapping (38) in the pipe (26). The movement of the valve member (14) is the combination of the displacements of the two diaphragms (5 and 6), and raises the control pressure at tapping (38) when demand for water increases. In a modification Fig. 3, (not shown) the two diaphragms are housed in separate compartments, the first diaphragm (5) is loaded by the tension spring (7) against differential pressure and the displacements of the two diaphragms are combined at the pilot valve, the first diaphragm (5) moving the valve body and the second diaphragm (6) to the valve member. <IMAGE>
Patent GB-2177762-A (GB)
Title: Anti-friction bearing seal
Inventor: LAROU ALBERT MICHAEL
IPC: F16J15/34
Filed: 1986-07-01
Abstract: An improved seal for an anti-friction bearing in which a felt ring 32 is positioned between a pair of flingers or retainers 28, 30, at least one of which is adapted to rotate relative to the other. A felt engaging surface of one flinger 28 is coated with an anti-friction material 38, such as a nylon, to reduce the heat generated by the felt rotating and rubbing the surface of the coated flinger. <IMAGE>
Patent GB-2193978-A (GB)
Title: Yarn clearers
Inventor: BRIERLEY JOHN BERNARD
IPC: D01H13/22
Filed: 1986-07-17
Abstract: In a yarn clearer, yarn 1 from a bobbin 2 passes through a monitor 3, sensor 10 and cutter 4, to a winder 5. When the monitor 3 senses a fault in the yarn 1, the knife 8 of the cutter 4 is activated, to cut the yarn 1, whereupon the yarn falls out of the sensor 10, which in turn sends a signal to a controller 11, to stop the winder 5. Sometimes, the cutter 4 can operate but fail to effect a cutting action. To prevent faulty yarn from being wound upon the winder 5, logic circuitry receives control signals from the yarn clearer. If the signals and denote that the yarn 1 is continuing to run past the sensor 10, a predetermined time after the cutter 4 has been activated, then a FAULT signal is emitted, and the winder is stopped. This indicates to an operator that the cutter 4 has been operated but unsuccessfully, and allows the operator to find and clear the fault, before restarting the yarn clearer. <IMAGE>
Patent GB-2193797-A (GB)
Title: Air guns
Inventor: HARPER STEPHEN ASHLEY
IPC: F41B11/00
Filed: 1986-08-05
Abstract: A low muzzle energy air gun adapted to receive a known compressed air cartridge has in place of the conventional dual action trigger assembly, a freely pivoted trigger lever 42 which can readily be retracted to a transport position. When in this position the lever 42 is held by locking means, eg. magnets 51, 54, or a spring biased detent (112, 114, Fig. 6). Finger pressure applied to the rear end of lever 42 causes it to be released and engage one end of a firing pin 56, whereupon finger pressure is now applied to the opposite end of the lever 42 to move pin 56 along a channel 50 and so engage the firing element of the air cartridge 32. The air gun is shown (Fig. 1) disguised as a walking cane. <IMAGE>
Patent GB-2209586-A (GB)
Title: Tunnel-type waste-heat boiler
Inventor: BERLIN ZALMAN LEIVIKOVICH
IPC: F22B1/18
Filed: 1987-09-07
Abstract: The waste-heat boiler comprises a water-walled furnace chamber 1 and an adjoining horizontal convective gas duct 2 with tubular heating surfaces constituted by vertical platens 8, 9. The platens 8, 9 adjoin a crown 10 of the gas duct 2, are made in at least two given sizes as to height alternately lengthwise of the duct, and are evenly distributed across the width of the gas duct 2. By arranging the platens more thickly in the crown of the gas duct, the gas is partly directed downwardly to flow around the lower portions of the platens.   The boiler has particular application to waste gases from non-ferrous metallurgical furnaces and the wood-pulp and paper industry. <IMAGE>
Patent GB-2200941-A (GB)
Title: System for protecting water piping against freeze damage
Inventor: FERMIN FREDERICK COLLINS
IPC: E03B7/10
Filed: 1987-09-28
Abstract: An electrically powered circuit is provided with a manually-resettable, thermostatically-actuated switch (22) to operate solenoids (26, 40) connected to valves (30, 44) controlling the inflow to a water piping system and drainage therefrom. When the ambient temperature surrounding the switch is above the freezing point of water, i.e. 32 DEG F, electrical power (10) to a solenoid (26) connected to the inflow valve (30) holds it open and simultaneously, electrical power (10) to a solenoid (40) connected to the drainage valve (44) holds the latter in its closed position. Upon the ambient temperature dropping to a predetermined value selected by the user, e.g. 33 DEG F, the switch (22) acts automatically to interrupt the supply of power (10) to the solenoids (26, 40) so that the water supply to the protected piping system (P) is shut off and the protected piping system (P) is drained by opening of the drainage valve (44). The protective system maintains itself in this condition until and unless the switch (22) is manually reset. Manual bypassing of the safety system may be obtained to obtain main's flow even when the protective system has acted in response to a low enough ambient temperature. <IMAGE>
Patent GB-2210630-A (GB)
Title: Garment pressing machine
Inventor: EVERETT NICHOLAS WYNNE
IPC: D06F71/18
Filed: 1987-10-06
Abstract: An adjustable form is made of two opposed parts (10, 12) adapted in shape for a particular type of garment, e.g. skirt e.g. by independently pneumatically actuated top and bottom links (58, 60 Fig 2). To engage the lower edge margin of the garment, when located over the form, and draw it down so as to tension the garment lengthwise, means such as a bar (80), which extends transversely of each form part (10, 12), carries spring-loaded hinged flaps 83. Fig 9 and is slidably adjustable up and down, is provided. Additional clamping means (82) are provided to clamp specific areas, e.g. pleats, against the form. Steam, air and vacuum can be provided during pressing, e.g. via the form parts (10, 12). Time-consuming hand pressing is avoided and clamping only specific areas avoids impression marks. <IMAGE>
Patent GB-2214750-A (GB)
Title: DPCM picture coding
Inventor: JONES ARTHUR HOWARD
IPC: H04N19/593
Filed: 1988-01-08
Abstract: A differential pulse code modulation (DPCM) coder with a predictor chain (24) has its coefficients 26 determined 39 from the coefficients of an adaptive least mean squares (LMS) predictor with a predictor chain 30 whch may be same as the DPCM predictor chain. In order to improve DPCM coding efficiency while retaining adequate error performance the picture being processed may be divided into a plurality of blocks. The DPCM coefficients for each block are determined separately by respective LMS predictors. Alternatively or additionally, stability is enhanced by one or more of the following: LMS coefficient increments are reduced in magnitude by a fraction of the sum of all these increments. The LMS predictor is moderated by adding a small fraction of a stable predictor. A stability condition is imposed on the LMS predictor or on the DPCM coder.        A quantizer is introduced to add pseudo-random noise. The DPCM coefficients are changed less frequently than the LMS coefficients, e.g. on the basis of average of the latter. <IMAGE>
Patent GB-2214574-A (GB)
Title: Improved piston engine
Inventor: RILETT JOHN WALTER
IPC: F01L21/04
Filed: 1988-01-29
Abstract: A piston engine powered by expanding fluid is characterised by the provision of internal valve gear. The engine comprises a hollow piston (7) for reciprocation within a working cylinder (20) for extracting work from a working fluid under pressure. The valve gear includes an inlet valve (4) mounted in the working cylinder head and a poppet-type exhaust valve (11) mounted substantially within and guided by and on the centre-line of the hollow piston. An inlet valve operating stem (13) attached to the exhaust valve opens the inlet valve as the piston approaches the cylinder head. A spring opens the exhaust valve when the piston is in the vicinity of the end of its expansion stroke thereby causing the working fluid to be exhausted through one or more outlets (15) in the piston throughout substantially the whole of its return stroke. The exhaust valve closes when the said piston is in the vicinity of the end of its return stroke. <IMAGE>
Patent GB-2212057-A (GB)
Title: Reclining seat mechanism
Inventor: WYNNE-JONES TIMOTHY
IPC: B60N2/225
Filed: 1988-05-03
Abstract: The adjustable seat mechanism includes cooperating gears 17 and 19 arranged to rollingly engage under the influence of an eccentric cam 20, 21 and 22. In use, when the cam is rotated the cammings effect is reduced, making the gear easier to operate, due to the relative rotation of the parts 21 and 23. The parts 21 and 23 are biassed to adopt a maximum camming configuration when the gear is not in use to accommodate gear back-lash and prevent rattle. <IMAGE>
Patent GB-2207013-A (GB)
Title: Electric appliance
Inventor: WOZNY ANTHONY GEORGE
IPC: H01R25/14
Filed: 1988-05-20
Abstract: An electrical appliance such as a kettle, fryer, food mixer includes an electrical plug for connection to an electric sockete outlet, the height of the electric plug means being selectable and fixable so that the appliance may be stood on a surface ajacent to the socket and the pins of the electric plug means may directly connect with the electric socket outlet. The plug pins (27,28 two of three being shown) are provided with respective rollers (35, 36) which engage respective power-supply tracks (53, 54, 55). Alternatively, a plug may be joined to a coiled flex (Fig. 4 not shown) and the tracks dispensed with. <IMAGE>
Patent GB-2221951-A (GB)
Title: Power operated garage door opener
Inventor: METCALF JACK
IPC: E05F15/16
Filed: 1988-07-14
Abstract: As seen in plan view, the upper edge 16 of an up-and-over door carries cam plate 15. Horizontal arm 10, rotatable by an electric motor about vertical axis 10A, carries a roller which co-acts with plate 15, when arm rotates from A to D, to start door opening. At D, the door balance spring starts to move the door fully open, and the arm rotates on to A to await the next door opening. Arm 10 carries a latch plate co-acting with manually operable, spring biased latch 13. A motor control circuit is described. <IMAGE>
Patent GB-2212140-A (GB)
Title: Container handling
Inventor: BOUGHTON THOMAS TRAFFORD
IPC: B60P1/64
Filed: 1988-11-04
Abstract: A load handling device for a vehicle which enables the vehicle to pick up and set down standard ISO comprises a mast 5 pivotally mounted at one end adjacent the rear of the vehicle for movement about a horizontal axis, and a cross-member 10 mounted for movement along the length of the mast, the cross-member including elongate flexible tension elements extending from its ends and provided with load-engaging means at their respective free ends, the device further including means to vary the effective lengths of the flexible tension elements independently or in unison, advantageously mounted within the cross-member. …<??>In use, the load-engaging means are attached to the corner fittings of a container while the mast is vertical and the cross-member is at the lower end of the mast. The tension elements are then pulled into the cross-member and the cross-member is moved along the mast as the mast is tilted, so that the container is lifted on to the vehicle. Offloading is achieved by reversing the procedure. …<??>The mast is telescopic, and the cross-member moves up the mast as it extends. …<IMAGE>…
Patent GB-2224951-A (GB)
Title: Multiple-layer bubble blowing devices
Inventor: LIN MONG SHENG
IPC: A63H33/28
Filed: 1988-11-21
Abstract: A bubble blowing device comprises concentric coplanar rings 1-3 and elements 12, 21, 23, 32 which link the rings and extend out of the plane of the rings. Blowing on the side of the assembly on which the elements extend produces bubbles within bubbles. <IMAGE>
Patent GB-2226229-A (GB)
Title: Slatted shelving support system
Inventor: DONARTE ROBERT P
IPC: A47F5/08
Filed: 1988-12-24
Abstract: An improvement in or modification of the shopfitting structure of our copending British Patent Application No. 8812170.2 (GB 2218898 A) comprises providing, for each vertical channel member, a forward extension (41) to one of the opposite sides thereof and a laterally directed channel (42) in that forward extension for receiving an end (43) of a slatted shelving support rail (40). This adds an extra element of flexibility of construction, as a single basic structure in a shop can be used to support brackets as in GB 8812170.2 or slatted shelving panels for receiving conventional slatted shelving shelf brackets. <IMAGE>
Patent GB-2221071-A (GB)
Title: Electronic keyboard
Inventor: IMPETT DAVID L
IPC: H03M11/00
Filed: 1989-07-04
Abstract: An electric keyboard comprises key switches arranged in an electrical matrix and a microcomputer arranged to cyclically scan the matrix in order to detect a change in state of a key switch within the matrix as between the previous scanning cycle and the present scanning cycle. The microcomputer is configured to compare also the detected changed state of the key switch with the state of other key switches within the matrix using a stored bit map (38, 40 in Fig. 2) or rescanning (Fig. 3, not shown). The microcomputer is responsive to the relative states of the switches and prevents transmission of false key switch data which can be caused by ghost keys in certain multiple key depression situations. <IMAGE>
Patent GB-2228997-A (GB)
Title: Atomic absorption spectroscopy
Inventor: STEINER JOHN WILLIAM
IPC: G01N21/74
Filed: 1988-04-29
Abstract: A process for the chemical determination of an analyte in a specimen using thermally activated atomic absorption spectroscopy where a specimen may be injected directly through sampling port (12) into an atomiser furnace (10) without complicated pretreatment. Constituents of the specimen which may interfere with the process are removed by volatilisation controlled by introduction of reactive gases through gas ports (13, 14) creating reducing, oxidising or neutral environments, and also controlling pH. Volatile substances causing deterioration of the atomiser furnace may also be inhibited or neutralised by introduction of such gases. Suggested gases, by way of example only, are carbon monoxide, ammonia, hydrogen, methane, argon and oxygen.
Patent GB-892673-A (GB)
Abstract: 892,673. Intercommunication systems. GYLLING & CO., A. B. Dec. 9, 1959 [Dec. 9, 1958], No. 41909/59. Class 40 (4). In a system employing an amplifier F at a central station, the operation of a home relay UR at a calling station and a call relay LR at a called station effects the connection of the subscribers' instruments, microphone M and loud-speaker H, to the appropriate inputs and outputs of the amplifier over 8 common wires which are also used in pairs to provide selective calling circuits, speech currents being excluded therefrom by a blocking impedance 45 in series with each relay LR. This impedance may take the form of a germanium diode, or of a suitable resistor, which may be a varistor, in series with a rectifier. For a system with 20 stations, an additional wire 9, which also serves for control, is required for calling, and the connections of the relays LR to the wires 1. . . 9 are indicated by small rings. Wires 10 ... 12 provide current supply from a source SA at the central station. The actuation of a selecting key such as 22 connects up relay UR at the calling station, relay LR at the called station and relay CR at the central station. Relay SR operates for a period determined by a shunt capacitor 37 to supply tone current from an oscillator OSC to the loud-speaker H of the called party. The direction of transmission of the amplifier F is determined by the alternate earthing of wires 38, 41 under the control of relays TL I, TL II, HR which are in turn controlled over wire 9 by reversing keys TL at the calling and called stations. Release is effected from the calling station by means of key A which controls relay BR. During a call a red lamp 34 lights at all stations and a green lamp 35 at the called station.
Patent GB-2242526-A (GB)
Title: Odometer
Inventor: TAYLOR PETER
IPC: G01C22/00
Filed: 1990-03-27
Abstract: An odometer (100) comprising a plurality of odometer wheels (12-24) each having numerals zero to nine print on their outer periphery, each odometer wheel being rotatably mounted on a first shaft (34); pinion gears (38) rotatably mounted between adjacent odometer wheels for driving the odometer wheels; flag drive means (32) on one side (30) of the odometer wheel (24) further to the left; and flag means (50) comprising a sector-shaped portion lying in a plane substantially parallel to the planes of the odometer wheels and having a throughbore for pivotal mounting on the first shaft adjacent said one side of the odometer wheel furthest to the left, the flag means further comprising a first arm (70) extending away from the outer arcuate edge and over the outer periphery of the odometer wheel furthest to the left to define a flag, and a second arm (58) having a lip at its free end engageable with the flag drive means (32) for pivotally moving the flag means, as the odometer wheel furthest to the left rotates from displaying the numeral nine to displaying the numeral zero, from a first position in which the flag is not visible to a second position in which the flag is visible and obscures the numerals on the odometer wheel furthest to the left. Provides a means for flagging an odometer when all the odometer wheels have completed at least one full revolution. May also overcome the problem of backlash between the odometer wheels and the pinion gears to substantially hold the numerals on the odometer wheels in alignment. <IMAGE>
Patent GB-2243592-A (GB)
Title: Structure of hand tool tag card
Inventor: CHEN JOHNNY
IPC: B65D73/00
Filed: 1990-05-03
Abstract: A tag card for holding a hand tool e.g. pliers for commercial presentation includes a V-shaped fastening member 6 having three unitary spigots 61-63 outstanding from the three ends thereof and respectively inserted through a plurality of fastening holes on a mounting card 5 to fasten in three sleeves 71-73 of a V-shaped holder member 7 so as to firmly secure a hand tool to the mounting card. Each spigot has a plurality of latching projections 611, 622, 633 spaced axially along its length selectively engagable with an internal stop ring 714, 724, 734, of the coacting sleeve so that the fastening position of the fastening member to the holder member can be adjusted according to the thickness of the hand tool to mount. In a modification (Fig 5), the holder member 7 is omitted and two of the three sleeves are integral with a moulded card and the third sleeve is received in a selected one of series of card holes. <IMAGE>
Patent GB-2247161-A (GB)
Title: Electrical trigger control of water jet
Inventor: WADDINGHAM SHAUN
IPC: B05B12/00
Filed: 1990-08-22
Abstract: The electrical trigger control of a high pressure water jet pumping system (e.g. fig 1) comprises a high pressure pump (2) transmitting water through hose (3) to hand held lance (8) and nozzle (9). The process of pumping of water from high pressure pump (2) into hose (3) may be activated / deactivated by depression of lever (7) which actions switch (6) within trigger assembly (5) sending the appropriate electrical signal back to pump (2) via cable (4). <IMAGE>
Patent GB-2247652-A (GB)
Title: Motor vehicle steering column assemblies
Inventor: HAYWARD ROLAND JOHN
IPC: B62D1/19
Filed: 1990-09-05
Abstract: The assembly comprises a tubular outer column (11) and rotatable inner column (12). A connection 17 for mounting the assembly to the vehicle body structure (13) comprises a flange 18 and a strap member (19), formed integrally with the outer column and connected to the outer column by frangible sections (21). On impact, deformation of the vehicle body structure causes progressive peeling back of the strap member and breaking of the frangible sections 21 instead of driving the steering column assembly upwards towards the driver. In another embodiment, the steering column assembly is guided for substantially rectilinear movement during vehicle impact. <IMAGE>
Patent GB-2242951-A (GB)
Title: Pipe joint
Inventor: CUTTING NEIL WILLIAM
IPC: F16L21/02
Filed: 1990-10-31
Abstract: A pipe joint, which can be used (a) to repair a break or other damage to a pipe or (b) to provide for expansion and contraction of the pipe, thereby compensating for earth movements and temperature changes, comprises an outer sleeve (11) which is a first length of pipe of greater diameter than either of two pipes to be joined, the outer sleeve having a pre-moulded or "O"-ring seal (14) and seal retainer (15) on its inner surface adjacent one end thereof and an annular stop (16) on its inner surface adjacent the other end thereof; and an inner sleeve (12) which is a second length of pipe being substantially identical to the inner diameter of the "O"-ring seal (14). The inner and outer sleeves are slidably engageable, the limits of their relative movement being determined by the positioning of the stopped end of the inner sleeve (12) within the outer sleeve (11). Alternatively, the pre-moulded or "O"-ring seal (14) and retainer (15) are attached to the outer surface of the inner sleeve (in place of its annular stop (17)) instead of to the inner surface of the outer sleeve.