baber/WOPTO huggingface dataset:
Patent GB-2219661-A (GB)
Title: Sensor for conduit wall temperature/vapour fraction measurement
Inventor: CORNWALL KEITH
IPC: G01K7/00
Filed: 1989-06-05
Abstract: A sensor for sensing the wall temperature and the vapour fraction of two-phase flow in a conduit 1, e.g. a copper evaporator tube of a heat pump, comprises an insulating sleeve insert 11 for the conduit, on which sleeve is mounted a sensor element 12 which is used to sense both the wall temperature and vapour fraction. Wall temperature measurement is achieved by use of a thermocouple junction 14 established between the sensor element and the material of the tube wall. The sensor element also has a temperature-dependent electrical resistance so that by causing it to be electrically heated and measuring its resistance, the rate of heat removal can be measured. Hence the vapour fraction can be established by use of calibration curves. The two measurements may be performed alternately. <IMAGE>
Patent GB-2220756-A (GB)
Title: D.C. biasing apparatus for impedance measurement
Inventor: KUBOYAMA YOICHI
IPC: G01R27/26
Filed: 1989-07-04
Abstract: In an impedance (2) measurement apparatus in which a measurement AC from source (11) and a DC bias (3A, 3B) are applied to impedance (2) the effects on the impedance measurement of the AC measuring current flowing in other components such as a guard line and a shield line are removed. An impedance unit DC bias (3A) is connected via a round trip line e.g. central and outer conductors of coaxial cable 4A, between terminal Hd of impedance (2) and a connecting line (5). A second impedance which may be a second DC bias (3B) is similarly connected via coaxial cable (4B) between the connecting line (5) and terminal (Ld) of impedance (2). 
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Patent GB-2234882-A (GB)
Title: Noise reduction system
Inventor: SALLOWAY ANTHONY JOHN
IPC: G10K11/178
Filed: 1989-08-03
Abstract: An active noise reduction system for an earphone 1 or ear defender, the system comprising a noise reduction sound generator 14, a microphone 5 acoustically coupled to said generator, a feedback loop connected between the microphone and generator, and including loop stabilisation means 6, 7 for filtering and inverting the phase of a microphone signal and means 12 for amplifying the signal, the sound generator 14 being mounted within an earphone or oar defender on a partition wall 16 between a rear cavity which is closed and a front cavity which is closed only when the structure is supported against a user's ear, in which the partition wall 16 is provided with an air vent hole 9 effective to equalise air pressure across the wall such that the effect of a large acoustic pressure pulse in the front cavity will be reduced in amplitude and thereby prevented from causing significant displacement of a diaphragm of sound generator 14, the diaphragm thus being able to be driven solely by the applied electrical signals. This restrains the effects of large external pressure pulses or buffets from causing damage to the diaphragm. <IMAGE>
Patent GB-2235170-A (GB)
Title: Control arrangement for a motor vehicle
Inventor: ROSEN HANS ROBERT
IPC: G05G11/00
Filed: 1989-08-14
Abstract: A control system is provided for a motor vehicle comprising an accelerator pedal and an automatic control such as a wheel slip detector. Means are provided for selectively connecting either a first controlling member 8 operated by the accelerator pedal or a second controlling member 9 actuated by the automatic control to a controlled element 5 which determines the position of the throttle. The arrangement is such that the controlling member which is tending to move the control element furthest towards the right is connected to the controlled element with the other controlling member then being disconnected from the controlled element. <IMAGE>
Patent GB-2223809-A (GB)
Title: Rocket engine
Inventor: HIRAKOSO HIROYUKE
IPC: F02K9/78
Filed: 1989-09-07
Abstract: A rocket engine comprises an air intake 14, a precooler 7, and a condenser 5 whereby air is partly condensed and liquefied by employing a fuel such as liquid hydrogen, from a tank 1 as a cold heat source. The liquefied air is passed via a boost pump 24 to a mixer 25. 
<??>Uncondensed air is compressed in a compressor 21 and then condensed in the mixer 25 utilising the already liquefied air as cold heat source. The liquefied air is subsequently fed to the rocket combustor 19 where it acts as an oxidizing agent for liquid hydrogen supplied by line 8. In alternative arrangements. the mixer may include a heat exchanger (26) (Figures 2, 3 and 4) supplied with outlet liquefied air from the mixer, there may be defrosting means (30) (Figures 3 and 4) between precooler 7 and condenser 5, and the hydrogen supply from tank 1 may be branched (Fig 4) to supply a further heat exchanger in the mixer 25 as well as an additional pass in the condenser 5, suitable valves and pumps being provided. 
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Patent GB-2224428-A (GB)
Title: Fruit slicer
Inventor: DEVEREUX MAHON GERARD
IPC: B26D3/26
Filed: 1989-11-02
Abstract: A fruit slicer for slicing lemons is such that the lemon is first cut in half when forced by a feed cylinder 3 into the fruit slicer container 1 over a knife plate 6, and then each half 16, 17 is sliced in turn by reciprocation of a slicing blade 7. The fruit is held in a lower cylinder which is rotated to permit the second half to be sliced when the first half has been completely sliced. The sliced lemon falls through the open bottom of the container 1. The slicing blade 7 may be reciprocated linearly or arcuately about a pivot, manually or by an electric motor. The feed cylinder 3 may be driven towards the knife plate 6, and the lower cylinder may be rotated, by electric motors. The major axis of the lemon may be horizontal rather than vertical. <IMAGE>
Patent GB-2242265-A (GB)
Title: Antenna for thermal radiation
Inventor: HUNTER IAN
IPC: H01Q19/19
Filed: 1990-03-07
Abstract: An antenna comprises a first reflector (2) for reflecting thermal radiation from a scene to an thermal detector (4), the field of view of the detector being wider than the solid angle of rays received from the first reflector (2), and a second reflector (8) for shielding the detector (4) from rays outside the solid angle, the second reflector (2) reflecting radiation from the detector (4) back onto the detector (4) and/or radiation from cold sky onto the detector (4). By so shielding the detector (4) it can have a field of view appropriate to a first reflector of greater diameter than first reflector (2) and therefore a smaller reflector may be used whilst still achieving the desired resolution. The reflectors may be replaced by refracting systems and the antenna may also be used for short wavelength radio waves. <IMAGE>
Patent GB-2232231-A (GB)
Title: Temperature and volume control valve assembly
Inventor: NICKLAS JAMES R
IPC: F16K11/12
Filed: 1990-05-23
Abstract: A mixing valve (10) has a modular cartridge (60) rotatably mounted in housing (12). The cartridge has a bottom volume control valve plate (58) attached to a lower section (62) housing a pressure balance valve (80). The lower section (62) is secured to an upper section (120) that rotatably receives a temperature control plate (150). The plates (58) and (150) are both rotatable about a common axis (64). The plate (58) is controlled by operation of stem (180) attached to handle (34). The plate (150) is controlled by stem (160) which is operated by knob (38). An insert (250) allows the knob (38) to operate even when hot and cold water supplies are inverted. A splined hot water stop ring (228) sits in handle (34) and adaptably limits rotation of knob (38) for a selected maximum water temperature. Outer seals (58) assure that all water flows through cartridge (60) when the volume is set for partial flow.
Patent GB-2233159-A (GB)
Title: Electric noise absorber
Inventor: MATSUI KAZUHIRO
IPC: H04B15/02
Filed: 1990-05-25
Abstract: An electric noise absorber for surrounding a flat cable (103c) comprises two ferrite pieces (103) having abutting planes, two hinged casing members (105a, 105b) containing the respective ferrite pieces (103) and being closed by engagement members (135a, 131c), and a spring member (107) in one of the casing members for pressing the ferrite pieces (103) against each other when the casing members are closed. The casing members (105a, 105b) and the spring member (107) are separately moulded to provide strength and elasticity. The casing members require no apertures for biassing members and therefore outside magnetic substances are prevented from contacting the ferrite pieces contained in the case members. The contact planes of the abutting pieces (103) may be coated with magnetic fluid. <IMAGE>
Patent GB-2237113-A (GB)
Title: Thermographic inspection
Inventor: MILNE JAMES MORRIS
IPC: G01N25/72
Filed: 1990-09-18
Abstract: A thermographic inspection technique enables discontinuities e.g. reinforcing bars or defects to be detected and located in a material e.g. concrete, brick or fibre reinforced plastics. A surface (14) is heated by an array (12) of lamps controlled in response to measurements of surface temperature to maintain a steady surface temperature for several minutes. The heating array is then removed, and the surface temperature distribution observed with an infra-red imaging camera for a period of up to an hour. <IMAGE>
Patent GB-2248794-A (GB)
Title: Screwdriver with bulb
Inventor: CUSHION NIGEL DAVID
IPC: B25B23/18
Filed: 1990-10-20
Abstract: A screwdriver has a bulb 1 which is mounted in such a way as to illuminate any work being carried out in dim light conditions. Power cells for the bulb are mounted inside the handle. The bulb is operated by a switch 3 on the handle, either mounted forward for comfort, or on the butt to avoid any accidental switching. A reflector may be incorporated into the bulb mounting area of the handle. The bulb may also be mounted near the tip of the blade (Fig. 7). <IMAGE>
Patent GB-2299906-A (GB)
Title: A distributed amplifier for wide band hyperfrequency signals
Inventor: DUEME PHILIPPE
IPC: H03F3/60
Filed: 1990-11-19
Abstract: The amplifier comprises:- a plurality of basic amplifying cells C 1 to C n , with at least one common drain line D 1 -D n and at least one common grid line Lg each cell comprising at least one field effect transistor T 1 -T n which is common-source mounted, and filtering elements and includes a common drain biasing means comprise a plurality of auxiliary field effect transistors T' 1 to T' n functioning in saturable load mode and whose respective sources S' 1 to S' n are distributively connected to the common drain line and whose respective drains D' 1 to D' n receive the biasing voltage Vd.
Patent GB-2256357-A (GB)
Title: Panti-hose
Inventor: FOOTITT NEIL
IPC: A41B11/14
Filed: 1991-05-17
Abstract: A panti-hose includes a body portion having a waist opening and a crotch region defined between a pair of leg openings, Fig. 6. The body portion comprises a pair of side body portions 30, 32, Fig. 4 each of which is formed from a knitted tube slit longitudinally at 35 and defining a respective one of said leg openings, and a front and rear panel located inbetween the pair of side portions so as to space the side portions apart. The front and rear panels each extends from the waist opening to the crotch region and are formed from a single tube 31 slit longitudinally at 38, 39. <IMAGE>
Patent GB-2247646-A (GB)
Title: Prevention of nozzle clogging in thermal ink-jet printers.
Inventor: EBISAWA ISAO
IPC: B41J2/175
Filed: 1991-08-14
Abstract: A recovery method for an ink jet recording apparatus comprising recording means for recording by discharging the ink with bubbles formed by the thermal energy applied to a heat acting area in an ink holding portion, and energy supply means for forming said thermal energy on said recording means, including a compulsory recovery mode in which more than 10<3> predischarges are accomplished by supplying the energy exceeding 1.48 times the minimum energy Eo necessary for producing said bubbles. <IMAGE>
Patent GB-2255725-A (GB)
Title: Liquid treatment
Inventor: SMISSON ROBERT PHILIP MAUDSLAY
IPC: C02F1/52
Filed: 1991-12-19
Abstract: A method of treating liquid carrying suspended solids, e.g. sewage, comprises:   (i) introducing the liquid into a primary treatment vessel 1 and causing agglomeration of solids suspended in the liquid to form flocs which are not settleable to any substantial degree; (ii) transferring an aqueous component comprising the flocs from the primary treatment vessel to a secondary treatment vessel 5 where a floc of a settleable nature is caused to form; and (iii) permitting said floc to settle under gravity in the secondary vessel 5 and recovering an aqueous component having a substantially reduced concentration of suspended solids; wherein the liquid in each vessel is subjected to a low energy circulating flow about a vertical axis. <IMAGE>
Patent GB-915530-A (GB)
IPC: A43D3/02
Abstract: 915,530. Footwear lasts. LUDWIG, H. Oct. 3, 1959, No. 33589/59. Class 17 (1). [Also in Group V] A contractible two - part last 3, e.g. a metal vulcanizing last, comprises a front part 4 having an upper extension 1 for installing the last in a vulcanizing press and a heel part 5 which in the extended position of the last has a face level with the base of the front part 4, the heel part 5 being displaceable towards the extension 1 for contracting the last and being located below said extension in both its extended and contracted positions, the heelward face of the front part 4 and the toeward face of the heel part 5 being abutting surfaces both curved about an axis lying outside and to the rear of the last. In the embodiment illustrated in Fig. 1, the last 3 is divided through a curved plane 2 in which there is provided a dove-tail guide 18, an abutment 20 limiting the downward movement of the heel part 5 to such an extent that the correct extension of the last is ensured. The movement of the heel part 5 is effected by means of a hand lever 7 fixed on a shaft 8 to which is attached an eccentric disc 9 having grooves 10 (Fig. 2) bearing on a slidepiece 11 which is screwed, together with a reinforcement 6, to the heel part 5. In an alternative embodiment (Fig. 5), the space between the extension 1 and the reinforcement 6 is eliminated and movement is effected by means of the hand lever 7 by way of the shaft 8 and a pinion 12, the latter engaging a toothing 13 on the heel part 5. The eccentric drive shown in Figs. 1 and 2 is so arranged that in the extended position of the last, it is guided to a position just over the dead point in order to maintain this position. In the last shown in Fig. 5, the toothed pinion 12 is bolted by means not shown when the last is in the extended position.
Patent GB-2259961-A (GB)
Title: Torque-transmitting means in paper sheet feeding apparatus
Inventor: KIM HYOUNG-CHAE
IPC: F16D41/22
Filed: 1992-03-02
Abstract: An automatic paper sheet feeding apparatus for automatically feeding paper sheets one by one at regular intervals comprises a cylindrical bushing 10 attached to an automatic paper sheet feed roller shaft 3 and having a detent part 10b and an elastic piece 10a allowing elastic motion axially of the shaft 3 and a cylindrical part 20a joined with a feed gear 20 and having an elastic piece 20b allowing elastic motion axially of the shaft 3 and bearing against the elastic piece 10a of the bushing 10. The shaft 3 is inserted into the gear 20 through the bushing 10 so that the gear 20 can rotate on the shaft 3. The elastic piece 20b of the gear 20 is engaged with the detent part 10b of the bushing 10, to transmit torque to the shaft 3 and roller 2 so that automatic paper sheet feeding operation is performed. As a sheet is transferred, the live velocity of roller 2 approaches that of a roller 8 and a gap (Figs 6B and 6C) is produced between piece 20b and part 10b. <IMAGE>
Patent GB-2264666-A (GB)
Title: Apparatus and method for cutting a mountboard
Inventor: WESTON FRANK WILLIAM
IPC: B26F1/38
Filed: 1992-03-03
Abstract: An apparatus and method for cutting a mountboard in which the apparatus comprises a turntable (66), a cutter guide (64) and a cutter (26) mounted on and moveable along the cutter guide (64). A card to be cut is mounted on the turntable and a straight line is cut in the card by keeping the turntable stationary and pressing the cutter (26) into the card and moving it along the guide (63). An arch is cut in the card by rotating the turntable (66) underneath the stationary cutter (26). The movement of the turntable (66) is limited by a pair of stoppers (87, 89). The movement of the cutter (26) is limited by a moveable stopper (86). A card cutter having a planar undersurface for sliding across a surface to be cut and a blade movable from a retracted position to a cutting position where it projects beneath the planar undersurface. <IMAGE>
Patent GB-2262379-A (GB)
Title: A device for loading/unloading a tape cassette
Inventor: SAWAI KUNIO
IPC: G11B15/665
Filed: 1992-03-19
Abstract: A device for loading/unloading a tape cassette includes a cam disc (24) rotatably supported to a chassis (1) and at least one guide route (64) disposed thereon with it extending from the near side of the rotating axis thereof to the periphery side thereof in a manner to be topologically shifted in the rotating direction, a swinging arm (25) pivoted to the chassis and having a cam follow pin (65) belonging to the guide route, and means for transporting the tape cassette together with the cassette holder from the inlet port to the tape deck and in reverse, the transporting means including a shift member (40) adapted to retractively guide the cassette holder (9) with its cooperating to the swinging arm. … <IMAGE> …
Patent GB-2257793-A (GB)
Title: Weighing scale with validating reference channel
Inventor: FEINLAND SEYMOUR
IPC: G01G23/365
Filed: 1992-06-30
Abstract: An electronic scale for weighing an article includes a weighing channel with a sensor such as load cell 12 for providing an output indicative of the instantaneous weight of the article, and a reference channel with a reference sensor 22 for providing an output A indicative of instantaneous vibrations affecting the output of the weighing channel; the two channels include respective matched low pass filters 16, 26. The scale circuitry also provides a signal B indicative of the long term average of the reference channel's output via a filter 28. Comparator unit 30 compares the average signal B with the reference channel's output A and provides a validation signal when the reference channel's output does not differ by more than a threshold amount from the average signal. The validation signal is used by microprocessor 20 to indicate the absence of spurious vibrations and that the output of the weighing channel is valid. The threshold amount is preferably a percentage of the signal B. In an alternative embodiment (Figs. 4, 5 not shown), the filter 28 and comparator 30 are omitted and the microprocessor 20 makes a comparison of the instantaneous output of the reference channel filter 26 with the average value of that output to derive the validation signal. <IMAGE>
Patent GB-2268521-A (GB)
Title: Anti-slip floor surfaces
Inventor: WHITELAW WILLIAM LESLIE
IPC: E04F11/16
Filed: 1992-06-30
Abstract: A tile or floor covering has an integral anti-slip insert 20, presenting an anti-slip surface, formed therein. One method of manufacturing the floor covering includes arranging one or more anti-slip inserts in a mould; pouring an aggregate into the mould and allowing the aggregate to set. The insert and matrix material may comprise a composition of blocked polyurethane, an epoxy resin and an inert aggregate. <IMAGE>
Patent GB-2268683-A (GB)
Title: Protective pillow
Inventor: LIU ING-NAN
IPC: A47C16/00
Filed: 1992-07-17
Abstract: A protective pillow comprising two symmetrical side panels (10,20) connected by a back panel (30) with a receiving space defined therein for comfortable rest of the head, wherein the back panel (30) has ridge (60) fitting the back of the head; the side panels (10,20) may have bottom ends terminated into two hooks (40, 50) by which the pillow is fastened to the users shoulders. <IMAGE>
Patent GB-2273826-A (GB)
Title: Filtered electrical connectors
Inventor: PINNEY DAVID RALPH
IPC: H01R13/719
Filed: 1992-12-24
Abstract: An electrical connector comprises a multi-layer ceramic capacitor array structure 17 for providing capacitive paths between contacts 1, 2 of the connector and a common grounding structure. One or more 3 of the connector contacts which are intended for use in so-called safety critical applications (e.g. fire detection/prevention systems) are electrically isolated from the multi-layer capacitor array structure but connected individually to the common grounding structure through one or more discrete capacitors 20. The multilayer structure 17 and grounding plate 21 are grounded to the connector shell by spring contacts. <IMAGE>
Patent GB-2266175-A (GB)
Title: A device for the measurement of the diameter of coins or other circular objects
Inventor: MULDER ARJEN JOHAN
IPC: G07D5/02
Filed: 1993-03-01
Abstract: The diameter of coins (1) or other circular objects passing along a guide channel is determined by two photoelectric detectors (3, 4) arranged at different heights which are obscured by such coins or other circular objects as they pass. A further photoelectric detector may be provided so that the velocity of the coin or other object along the path can be determined. <IMAGE>
Patent GB-2275851-A (GB)
Title: A combined digital video/audio synchroniser
Inventor: HUDSON JOHN
IPC: H04N5/926
Filed: 1993-03-05
Abstract: A data synchroniser 1 used to synchronise an incoming video/audio signal SDI with a reference clock SPG is adapted for operation with a signal in which the numbers of audio samples in a sequence of fields differ to accommodate the fact that the number of audio samples per field is not an integer. During a resynchronisation operation in which a frame is dropped or repeated, the frame is selected in such a manner as to ensure that the number of audio samples in each outputted sequence of fields is constant, Figs. 3a, 3b, (not shown). The synchroniser operates with both 625 line 50Hz and 525 line 59.94Hz video systems. <IMAGE>
Patent GB-2276330-A (GB)
Title: Swimming pool filter
Inventor: BRIDGE DONALD
IPC: B01D36/00
Filed: 1993-03-10
Abstract: A swimming pool filter comprises stacked cups 3 which hold beds of sand 8 or other filter medium. The cups 3 are housed in a drum 1 into which water is fed in under pressure through an inlet 11. Each cup 3 has a perforated base 3b, and the water flows down through the sand 8 and into a collector 4 whose peripheral wall engages the base. The water flows from collectors 4 through connecting sleeves 5 and 7 to an outlet 10. A vent pipe 2 vents air from the spaces between the bases 3b and collections 4. Each base 3b is perforated across its whole area to facilitate flow of water through the complete cross-section of the sand beds, avoiding dead spots. <IMAGE>