baber/WOPTO huggingface dataset:
Patent GB-892135-A (GB)
Abstract: 892,135. Measuring rotor unbalance electrically. SCHENCK MASCHINENFABRIK G.m.b.H., CARL. Sept. 15, 1958 [Sept. 14, 1957], No. 29418/58. Class 40 (1). The components of the unbalance of a rotor 1 at each of two planes L, R is determined by vibration pick-ups 3L, 3R feeding through a potentiometric device 4 into the moving coils d of each of two wattmeters 5s, 5w supplied on the fixed coils f with synchronous sine and cosine voltages from a phase reference generator 10, the pointers s, w then being clamped and their readings recombined to give a direct indication of the unbalance phase and magnitude, while a servomotor 17 correctly positions the rotor 1 for unbalance correction by a drill. Unbalance measurement on the wattmeters 5s, 5w is made in standard manner, with switch 11 in position M. When the meter readings are steady, the pointers s, w are locked by closing switch D which energizes electromagnetic brakes. Switch 11 is then operated to position R, when the fixed coils f of the meters are energized with sine and cosine voltages from an A.C. generator 12 at any convenient frequency, and the signals from moving coils d are fed to meter 18, indicating the combined magnitude, and meter 19, indicating the resultant phase. The signals from coils d are also fed to a phasesensitive rectifier 13 together with a signal from a resolver 14 energized by generator 12, coupled to the main driving shaft 8, and rotated at a slow speed by motor 17. When the signals are in phase, relays A and B are energized, followed by relay C, which stops motor 17 at C 2 , and locks the shaft 8 at C 1 . The rotor is now at the correct angular position for unbalance correction by the drill in the plane L or R, as chosen by switch 4a. Specification 756,168 is referred to.
Patent GB-2236482-A (GB)
Title: Solar powered unit for treating ambient air in a room
Inventor: WILD RONALD GEORGE
IPC: A61L9/12
Filed: 1989-10-03
Abstract: A unit (10) for treating ambient air in a room comprises a housing (11) which may be mounted on or adjacent to a window (13). The housing contains an air treatment module (20) suitably comprising a wick (22) over which incoming airflow passes in order to transport vapour released from the interior of the module (21) out into the room. The housing (11) may have a face (14) inclined at an angle of 60 DEG  to the vertical. A solar panel (15), which may be set on the inclined face, is connected to a miniature electric motor coupled with a fan (16) for drawing air into the housing. <IMAGE>
Patent GB-2231218-A (GB)
Title: FM interference reduction
Inventor: HAWKES HENRY WILLIAM
IPC: H04B1/12
Filed: 1990-03-16
Abstract: A method of reducing interference between the detected modulations of a strong and a weak received FM signal, of angular frequencies  OMEGA 1, and  OMEGA 2 respectively, forming together a composite input signal wherein the input signal is applied to an amplitude detector 9 followed by a low-pass filter 10 and amplifier 11 to produce a beat signal of frequency equal to  OMEGA 2- OMEGA 1, and is also applied to an amplitude-limiter 7 and filter 71, and wherein the beat signal and the signal from filter 71 are multiplied together in a multiplier 8 whose output is low-pass filtered by filter 12, the output of which is detected via amplitude limiter 13 in a frequency discriminator 14. The arrangement is shown to give detection of the weak-signal modulation. The composite signal may be fed directly, and with a quadrature phase-shift, to two multipliers of a single- sideband generator, the multipliers also receiving phase-quadrature separated versions of the beat signal. Refinements of this technique to give improved performance, and arrangements for giving improved detection of the strong-signal modulation, are described. <IMAGE>
Patent GB-2232318-A (GB)
Title: Reducing multipath error by frequency or phase modulation of source
Inventor: AKABA NORIYUKI
IPC: G01S3/46
Filed: 1990-06-01
Abstract: A direction finding method and system for locating the direction of a source. The source transmits an angle-modulated wave, the receiving end apparatus receives the wave and, also time-averaging, minimizes an angle error due to a multipath interference. <IMAGE>
Patent GB-538441-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B1/08
Filed: 1941-01-07
Abstract: 538,441. Refrigerating. DISTILLERS CO., Ltd., and UNDERWOOD, A. J. V. Jan. 7, 1941, No. 901/40. [Class 29] Vacuum systems. In a system in which low pressure vapour from the evaporator is entrained in an injector operated by pressure vapour generated in a boiler, the condenser 'in which both quantities of vapour are condensed is cooled to a low temperature, e.g.-25‹F., such that the boiler operates at sub-atmospheric temperature, e.g. 30‹F., and may therefore itself be employed for refrigeration. Preferably the condenser is cooled by the evaporator of another such system operating at higher temperature and pressure. Refrigerants mentioned are ammonia, methyl chloride, di-chlordifluormethane carbon dioxide and propane. Specification 1853/15, [Class 29], is referred to.
Patent GB-2237555-A (GB)
Title: Linear motor elevator system
Inventor: YASUDA KUNIO
IPC: B66B11/04
Filed: 1990-10-23
Abstract: An elevator system is driven by a linear motor for vertical movement in a hoistway 1. The elevator system comprises a cage, a counter weight 7 and a hoisting rope from opposite ends of which the cage and the counter weight are suspended. A reaction plate 9 is supported by a side wall of the hoistway over the entire vertical length of the side wall. A stator 11 is secured to a part of the counter weight (or the cage) facing the reaction plate with a small gap C therebetween and guide means is secured to the counter weight (or cage) for guiding the elevation thereof. The guide means may be a guide roller structure comprising a support plate 14 secured to the counter weight (or cage) by bolts 16, adjusting rods 18 engaged with the support plate on a side opposite the reaction plate for adjusting the position of the support plate, and guide rollers 17 which make contact with the reaction plate so as to be rollable therealong. The guide rollers may be replaced by guide shoes secured to the counter weight and mounted with respect to the reaction plate to be slidable therealong or the guide means may comprise a combination of guide shoes and guide rollers. <IMAGE>
Patent GB-2254196-A (GB)
Title: Earthing device.
Inventor: HUBBARD MICHAEL IAN
IPC: H01R4/36
Filed: 1991-03-20
Abstract: This device provides an earthing terminal for Equipotential Cross Bonding, as recommended by the 15th edition of the I.E.E., without the need for a mechanical fixing. It is applied to the cleaned underside of metal surfaces, such as stainless steel sinks, cast iron baths, enamel led steel shower trays etc, where no earthing tag exists. The device comprises a springy metal, dished or bent strip or plate (3) supporting a screwed terminal. Adhesion is achieved with the application of a rapid setting metal to metal adhesive to the underside of zone C. A force of 3Kg is required to bond zone C against said metal surface. A smear of gel over the connector seals against moisture. An earthing cable is inserted into terminal 1 and secured by screw 2. This may then be cross bonded to adjacent pipework using a conventional earth fitting. <IMAGE>
Patent GB-2254118-A (GB)
Title: Interlocking brake structure for perambulators.
Inventor: CHENG KENNY
IPC: B62B9/08
Filed: 1991-03-26
Abstract: An interlocking brake structure for perambulators comprises a pair of rear supporting rods 11, a pair of mounts 12, a pair of engaging elements 14, and a pair of brake levers 13. One end of each rear supporting rod 11 is mounted to a respective mount 12, and each brake lover 13 is mounted to a respective mount 12. The mounts 12 and the brake levers 13 are connected by a wheel shaft 16 to achieve simultaneous rotation of the brake levers 13 and the wheel shaft 16. If one of the brake levers 13 is pressed, the wheel shaft 16 rotates together with the one brake lever and the other brake lever 13 is simultaneously rotated, and each brake lever 13 will simultaneously actuate the associated engaging element 14 mounted thereon to rotate such that the blocking element 141 of the engaging element 14 is engaged into one of the spaces formed by protruding elements (151, Fig. 2) to prevent the wheel 15 of the perambulator from rotating and to produce a synchronous braking function. <IMAGE>
Patent GB-2242732-A (GB)
Title: Flashlights
Inventor: HUI YIN
IPC: F21Y101/00
Filed: 1991-03-28
Abstract: A flashlight has a head position which incorporates a reflector and which is disposed at the forward end of a stem 19 mounted for axial sliding movement in the barrel 10 of the flashlight. The stem is made from a translucent plastics material. When the stem is fully retracted into the barrel, the reflector extends about a bulb 14 disposed in a holder projective at the forward end of the barrel so that the light from the bulb is emitted forwardly both directly and by reflection. When the stem is pulled forward the head position including the reflector is disposed forwardly of the bulb and the light from the bulb is emitted laterally through the translucent material of the stem. <IMAGE>
Patent GB-2254931-A (GB)
Title: A masking frame for use with screens used for cinematic projection
Inventor: JONES HOWARD DAVID
IPC: G03B21/56
Filed: 1991-04-02
Abstract: A vignetting frame for use with cinematic and other projected images in which the image is projected on to the front of either a screen or any other surface that is to be used as a screen. The frame is positioned to mask and conceal the borders or edges of the projected image from the viewers line of sight. The masking frame is composed of such a material that while it allows the image to be projected through the frame onto the screen, it prevents that part of the image which is masked by the frame being seen by the observer e.g. a one-way mirror.
Patent GB-2248036-A (GB)
Title: Sheet material for use in printing
Inventor: BEVAN LEONARD NOEL
IPC: B41M5/382
Filed: 1991-06-14
Abstract: Sheets of paper or other suitable material are formed into pairs (21, 22) connected together along one edge (23) by folding or by means of adhesive, and such double sheets (20) are formed into stacks (10) for use in reprographic operations by a method in which a reprographic operation is performed simultaneously or successively on the two exposed faces of the pairs of sheets whilst they remain in face-to-face relation, and the two sheets of each pair are then separated into single sheets after completion of the reprographic operations. In this way, it is possible to utilise material of a weight or stiffness which could not otherwise be handled by conventional reprographic apparatus. The inwardly and outwardly facing surfaces of each item may have different surface properties. <IMAGE>
Patent GB-2249238-A (GB)
Title: Image encoding apparatus
Inventor: KOSHI YUTAKA
IPC: H04N7/26
Filed: 1991-08-16
Abstract: Image data, 7, for encoding is processed by a plurality of block truncation coding means 3, 4, 5, each of which encodes a proportion of the elements of each block (Fig 9) according to the number of gradation levels. A judgment unit 1 determines the tone gradient of each block of incoming data and thus determines whether 1-bit encoding of a large number of elements (e.g. all elements, fig 9A and encoder 3) or m bit encoding of a smaller number of elements (half or a quarter, Figs 9B, 9C, and encoders 5, 6) should be selected. As described the number of data bits transmitted per block is constant. In an alternative embodiment (figure 10) the block judgment or classification unit 1 calculates a distortion measure from the block encoder outputs by a square error average or absolute error average distance. <IMAGE>
Patent GB-2262028-A (GB)
Title: Carrier device
Inventor: MCLYMONT-WILSON ISABELLA
IPC: B44D7/00
Filed: 1991-11-16
Abstract: A device for holding and carrying paintings on an artist's board comprises a lower portion adhered to the back of the board and an upper portion joined thereto at a fold line and having a handle slot.   <IMAGE>
Patent GB-2251274-A (GB)
Title: Seal
Inventor: NICHOLSON TERENCE PETER
IPC: F16J15/12
Filed: 1991-12-31
Abstract: A static seal consists of an envelope 13 of chemically resistant PTFE and a metallic packing ring within the envelope shaped to form cells 23. The cells may be filled with an inert gas under pressure so that increased loads on the seal may be cushioned. The metallic packing ring may take other shapes. <IMAGE>
Patent GB-2253874-A (GB)
Title: Spring assembly for a sash window
Inventor: HARDY TERENCE
IPC: E05F13/00
Filed: 1992-01-15
Abstract: A spring assembly comprises a casing, a spring member formed from coiled strip material freely rotatably mounted within the casing, one end of the spring member projecting from the casing for attachment to a load in use, and the casing incorporating a support member to support the spring member by engaging its outer surface to transfer load from the spring member to the casing. The assembly is preferably used with a sliding sash window in which case portions of the casing are adapted for engagement with locating formations on an outer frame member in which the sash frame is slidably mounted so that the weight of the sash frame is at least partly transmitted through the spring and casing directly to the outer frame.
Patent GB-920619-A (GB)
Abstract: 920,619. Capacitor dielectrics. SIEMENS & HALSKE A.G. Nov. 23, 1960 [Jan. 12, 1960], No. 40293/60. Class 37. A self-healing or regenerative capacitor contains a dielectric which is composed of at least one layer of a first organic substance with an oxidation balance of less than 10% coated on one or both sides with a layer of a second organic substance with an oxidation balance of at least 10%; the, or each layer of the second substance having a thickness not greater than one micron. An aluminium coating to act as a capacitor electrode may be vapour deposited on to the second substance. Examples quoted for the first substance are polycarbonates, polystyrene, polyethylene, polypropylene, polyvinyl carbazole; for the second substance paper, acetyl, ethyl or nitro-cellulose, polytetrafluoroethylene, polyethylene terephthalate, cellulose acetobutyrate.
Patent GB-2259146-A (GB)
Title: Mine detection system
Inventor: BUTLER MILLARD THOMAS
IPC: F41H11/12
Filed: 1992-07-27
Abstract: A multi-sensor system 10 for detecting the presence of objects on or under the surface of the ground comprises a movable, remote sensor platform 12 carrying a plurality of metal detector sensors 22 and short pulse radar sensors 24. The remote sensor platform 12 is remotely controlled from a processing and control unit (14) and signals from the platform 12 are sent to the processing and control unit (14) where they are individually evaluated for anomalous responses and a score is derived for each sensor which correlates to the probability that the anomalous response indicates the presence of an object. These probability scores are combined in a fusion subprocess step by comparing score sets to a probability table which is derived based upon the historical incidence of object present conditions given that score set. A decision making rule is applied to provide an output which may control a marker device to mark the location of found objects. The system may be used for detection of anti-personnel or anti-tank mines. <IMAGE>
Patent GB-2274399-A (GB)
Title: Nose expander clip
Inventor: WINSLOW PETER
IPC: A61F5/56
Filed: 1992-09-26
Abstract: Persons who breathe heavily through their mouths tend to snore loudly during sleep, causing sore throats, bad breath, plaque and interrupted nights and embarrassment. The invention intends to overcome these problems and relates to a plastic nose expander clip comprises end flaps joined by an interconnecting piece which includes two centre pins. The clip gently holds the two sides of the nostrils apart and in conjunction with the two centre pins the expander is held securely in place throughout the whole night and will not fall out, thus allowing up to 50% more air to flow through the nostrils and not through the mouth. <IMAGE>
Patent GB-2273565-A (GB)
Title: Tennis net measuring aid
Inventor: SPRAGUE GLYN JOHN
IPC: A63B61/04
Filed: 1992-10-06
Abstract: A measuring aid is mounted in the handle of the racquet to give instant access to an exact length necessary to set a tennis court net to the standard height. The measuring aid may be either telescopic or of a spring-loaded tape measure construction. A button on its end of the aid, prevents the aid from being pushed too far inside the handle. <IMAGE>
Patent GB-2261132-A (GB)
Title: Radiotelephone arrangement with optical coupling
Inventor: PEKKA LONKA
IPC: H02J7/00
Filed: 1992-10-21
Abstract: A radiotelephone arrangement uses optical coupling between two discrete elements, specifically a handportable telephone (1) and a car fitting stand (2) or between a mobile handset and a radio unit. This coupling is resistant to continuous vibration, humidity and pollution. Also, the arrangement significantly reduces interference radiated from the telephone housing. A charging device (12) included in the fitting stand (2) may be coupled electrically to a battery 9 of the handportable telephone (1) and the charging device may be actuated by an optical signal (17) from the telephone. The optical coupling (13-17) may take place through free space or an optical cable. <IMAGE>
Patent GB-2272525-A (GB)
Title: Determining pore pressure while drilling a borehole
Inventor: COOK JOHN MERVYN
IPC: E21B47/06
Filed: 1992-11-14
Abstract: Pore pressure Ppore of a subsurface formation is determined, while drilling a borehole, by measuring formation strength FS, resistivity RES and natural gamma ray activity GR. The measurement FS includes contributions of clay volume Vcl, non-clay mineral strength, and a porosity, the measurement RES includes contributions from a porosity, non-clay mineral volume Vsilt and pore fluid conductivity and the measurement GR includes contributions from clay and non-clay mineral, and the sum of Vcl, Vsilt and  PHI eff ist 1. The contribution to the measurement of clay volume Vcl, non-clay mineral volume Vsilt, clay porosity  PHI clay and effective porosity PHI eff are derived for the formation being drilled, the clay porosity  PHI clay and effective porosity  PHI eff being related by PHI eff =  PHI clay(1 - Vsilt). The pore pressure Ppore is derived from the relationship       PHI eff =  PHI clay(0)[1-Vsilt(Z)]exp[-aPpore(Z)], wherein      a=b DIVIDED (Pb-Pw)g and  b =      compaction coefficient at depth of interest  Pb =    density of shale  Pw =    density of pore fluid  g =      gravitational acceleration, 9.81 ms<-2>   PHI eff =    effective porosity   PHI clay =   clay porosity at zero depth of burial Vsilt =    volume of non-clay mineral (silt) at depth of interest.
Patent GB-2264482-A (GB)
Title: Stackable container
Inventor: BROUGHTON GEOFFREY MORRIS
IPC: B65D5/44
Filed: 1992-11-19
Abstract: A container formed of cardboard or similar creasable and foldable material includes an outer four-sided sleeve 1, a base, 3, 6, and an inner eight-sided sleeve 2 which is a close fit within the outer sleeve. Four triangular vertically extending spaces 28 are defined between the inner sleeve 2 and the four corners of the outer sleeve 1 which receive four post members 5 of timber or rolled cardboard. The base may include a timber pallet 6 which is covered by a sheet of cardboard 3, and the outer sleeve 1 may have inturned flaps which overlie the sheet 3. The outer sleeve may have pressed-in corner bands which embrace the post members 5. A separate lid 4 is also provided. <IMAGE>
Patent GB-2273861-A (GB)
Title: Baking tin
Inventor: HIRST COLIN
IPC: A21B3/13
Filed: 1992-12-23
Abstract: A baking tin for making e.g. sandwich cakes, Yorkshire puddings from batter mixes comprises a sheet metal pressing with one or more separate shallow recesses for the reception of the batter mix to be baked, with the tin having a flat base and a vertical side wall, wherein the base of the or each recess is impressed with a pattern of dimples, to extend the surface area for better heat transfer. <IMAGE>
Patent GB-2269945-A (GB)
Title: Conductive grommet
Inventor: FRICKE JOHN DAVID
IPC: H02G3/06
Filed: 1993-08-12
Abstract: A conductive grommet (10) formed of rubber material is of generally annular form comprising an aperture through which a shielded cable is to be located in use. The rubber material which may be impregnated with carbon powder is provided with a number of strands forming a conductive member (14) within grommet (11). Member (14) may extend in a general S formation between surfaces (21) and (22). In use, the grommet (10) conducts electrical current between the shielded cable and an inner surface of a housing. <IMAGE>
Patent GB-2281942-A (GB)
Title: Hydraulic actuators
Inventor: NIOLOUX RAYMOND
IPC: F15B15/14
Filed: 1993-09-15
Abstract: An hydraulic actuator, e.g. for a vehicle clutch, includes a vibration isolating block 34 of elastomeric material disposed between the operating rod 35 and piston 30. <IMAGE>
Patent GB-2272128-A (GB)
Title: Apparatus for simulating infra-red images
Inventor: MILLER HANOCH
IPC: G03C5/16
Filed: 1993-10-21
Abstract: The method comprises the steps of (a) providing a transparency (20) of an optical image of a scene (22) in the visible band; (b) directing the infrared radiation from an infra-red source (34) through the transparency and collimating the radiation with a collimator (30); (c) detecting the infra-red radiation which passes through said transparency with a device which generates an electronic image corresponding to the scene (22), and (d) providing a visible output of said detected infra-red radiation using a device (40) such as a video printer. <IMAGE>
Patent GB-2283227-A (GB)
Title: Launching and recovery apparatus
Inventor: BRADLEY DAVID MICHAEL
IPC: B63B23/26
Filed: 1993-10-28
Abstract: A lifeboat (4) to be launched from a vessel is carried by a cradle (3) supported by fall wires (23, 24) passing over sheaves (25, 26) on a fixed davit structure (9, 5, 6) and has at its lower end roller assemblies that run over inclined trackways (7). A third fall wire (33) incorporating chain (34) hooked on the boat runs over a third sheave (32) on said structure. This fall wire (33), which attaches to one middle horn (42) on the cradle, is substantially untensioned during the launch and recovery. All three fall wires are preferably wound onto and off a single winch drum. Preferably the third sheave is spring mounted. <IMAGE>
Patent GB-2274322-A (GB)
Title: Cleaning heat exchanger tubes
Inventor: MCGAUGHEY HENRY
IPC: F28G1/12
Filed: 1994-01-12
Abstract: Mobile apparatus for cleaning e.g. heat exchanger tubes includes a ball collector (18) in which a plurality of elastomeric balls may be retained. The plurality of balls may be supplied to a tube to be cleaned using connection means (58, 64), the balls scouring the interior walls of the tube and thus cleaning it. The apparatus also includes pump means (20) for circulating the balls through the tube, and the whole apparatus is mounted on a towable trailer. The diverter (66) may be permanently mounted in the main tube or may be part of the mobile apparatus and placed in line by means of a branch connection and valve arrangement (Fig. 10). <IMAGE>
Patent GB-2282089-A (GB)
Title: Attaching lead elements to electronic components
Inventor: NAKAZAWA JUNICHI
IPC: H01L21/48
Filed: 1994-08-10
Abstract: Electronic lead elements and the production method thereof are disclosed, wherein a set of electronic elements are wound up into a form of coil of a thin leaf band wherein electronic lead elements are composed of leads 10 and aluminum tabs 13 respectively, the leads 10 having one end fixed to the band 11 with a predetermined space provided therebetween and the other ends of the leads having aluminum tabs 13 welded thereto respectively and wherein the aluminum tabs are flattened. Thus the fins, which may be formed on the tabs, are prevented from damaging aluminum foil to be wound around the tabs to form condensers. <IMAGE>