baber/WOPTO huggingface dataset:
Patent GB-2146126-A (GB)
Title: Drill stem logging system
Inventor: MEADOR RICHARD A
IPC: E21B47/01
Filed: 1984-06-20
Abstract: An apparatus for measuring earth formation parameters by transmitting and receiving electromagnetic signals by antennas (19, 21, 22) disposed in recesses in a tubular housing member (14) includes apparatus for reducing the coupling of electrical noise into the system resulting from conducting elements located adjacent the recesses and housing. The apparatus employs electrostatic, but not magnetic, shielding of the low impedance antenna systems and inductive signal coupling to enhance the signal at the receiver is disclosed. This system is capable of measuring formation parameters in the presence of conducting bodies, e.g., the drill string, permitting incorporation of the apparatus in a measuring while drilling (MWD) logging system. In a particular embodiment, high frequency electromagnetic energy is used to measure formation resistivity and the antennae are small low impedance coils arranged in the wall or around the outer circumferential surface of a steel drill collar and spaced from the surface thereof a minimum distance to allow efficient propagation and reception. The coils are circularly configured about the collar and longitudinally space thereon to serve as transmitting and receiving elements and are each encased in a split copper tube serving as an electrostatic screen, coupling to the coils being via a toroidal core having a winding with the respective coil passing through the core. The received signals are phase shifted and amplitude attenuated as they pass through the formation, and formation parameters are determined by detecting variations in travel time and attenuation between longitudinally spaced receivers. <IMAGE>
Patent GB-2146626-A (GB)
Title: Mailing machine
Inventor: SINN HANS J
IPC: B65H1/06
Filed: 1984-08-21
Abstract: An envelope prop for use in a mailing machine includes a feed deck 10, a rack 12 arranged longitudinally on the bottom surface of the feed deck, and a slidable envelope prop base 24 which can make detent engagement with the rack. An envelope prop 38 is slidably mounted on the envelope prop base for movement therewith along the feed deck and, being slideably mounted on said base is also capable of lateral movement with respect to said base. <IMAGE>
Patent GB-2153808-A (GB)
Title: Purification of water and other aqueous liquids
Inventor: KLEIN SAMUEL H
IPC: C02F3/10
Filed: 1984-08-23
Abstract: Water is passed through a filter comprising a solid backwashable filter medium preferably having pores or slots of 125 microns or less made of biologically nondegradable and non-corrosive material, and having a specific, non-pathogenic aerobic activated sludge layer deposited thereon. The aerobic sludge layer is prepared by aerating mixtures of raw water, diatomaceous earth and preferably an inert particulate biologically non-degradable filter material (such as cellulose powder), for a minimum period of 24 hours, and preferably at least five days. The resulting mixtures containing a specific, non-pathogenic aerobic activated microbiological sludge is recirculated through the solid filter medium in a specific sequence until an activated sludge layer is deposited thereon to the desired thickness. <IMAGE>
Patent GB-2164965-A (GB)
Title: Waste water trap
Inventor: GOODALL ANDREW NORMAN
IPC: E03C1/288
Filed: 1984-09-28
Abstract: A waste water trap comprises an outer cylinder in two parts, the upper part (1) forming the inlet and the lower part (2) containing an outlet pipe (5) connected to a drainage system using connector(6). Said outlet pipe (5) is surrounded by an inverted cup-like member (15) forming a float valve. Under normal pressure conditions, the member (15) is as shown in the figure allowing waste water to flow as indicated by the arrows. When there is a drop in pressure in the waste outlet, the member (15) drops to make contact with the base of part (2) thus sealing off the trap. If back- pressure from the drainage system occurs, the member (15) rises to make contact with gasket (8) and again seal off the trap. <IMAGE>
Patent GB-2166877-A (GB)
Title: Weighing apparatus
Inventor: FORD DEREK WILLIAM
IPC: G01G21/24
Filed: 1984-11-08
Abstract: Weighing apparatus comprises a fixed member (11) and load supporting means such as a weigh pan or weight platform supported, cantilever fashion, on a spigot (29) attached to a movable plate (17). The plates (11) and (17) are interconnected by three flexure arms (18, 19), two of the arms being spaced apart at the top of the parallelogram. A load cell (22) is connected by flexure tapes (24) between the movable plate (17) and an arm (16) rigid with the fixed member (11). <IMAGE>
Patent GB-2168484-A (GB)
Title: Motor vehicle carried speed indicator system
Inventor: ELLIOTT GEOFFREY RICHARD
IPC: G01D13/26
Filed: 1984-12-13
Abstract: The system comprises an activatable visual indicator 8 (eg a flashing light) mounted to be visible externally of the vehicle from in front thereof and means 1 responsive to the speed of the vehicle to activate the indicator when the speed of the vehicle exceeds a predetermined value. The means 1 may be a speedometer incorporating an electrical contact 4 engaged by the speedometer needle 3 at the predetermined speed. Alternatively, the means 1 may be electronic. The system may also include audible warning means 9. <IMAGE>
Patent GB-2172709-A (GB)
Title: Cartridge fuse tester
Inventor: HADDRELL BRIAN
IPC: G01R31/74
Filed: 1985-03-21
Abstract: A tester device (5) for cartridge-type fuses (F.) comprises a casing (6) having a central cavity with an exposed electrical connector (8) fixed therein. When a fuse cartridge (F) is inserted in the cavity so that one end (9) abuts the connector (8), the other end (10) projects from the cavity. The casing (6) and cartridge (F) can be fitted into a torch (1) in place of one of its batteries (2), whereby the integrity of the cartridge can be determined when the torch is switched on. <IMAGE>
Patent GB-2157119-A (GB)
Title: Halftone dot generation in image reproduction
Inventor: IKUTA KUNIO
IPC: H04N1/405
Filed: 1985-03-29
Abstract: To convert an original with graduated tones to half-tone dots, without a conventional screen memory storing a 2-dimensional array of threshold values for the elements of a dot, the co-ordinates W, V of the scanning head of a reproducer are transformed to the rotated axes X',Y' of elements in the corresponding dot. Concentric zones in the dot, such as diamonds or circles distinguished by a single parameter, have uniform reference density; calculation of this zone parameter from the co-ordinates X',Y' of any element in the dot allows an algorithm or a look-up table to provide a reference density to the element. The measured density signal for each element of the original is converted by a suitable function to an intermediate density which is compared with the reference density for the element. If the reference density is lower the element is recorded dark; if higher the element is light. To save time a group of elements on the scanning heads may be recorded simultaneously. <IMAGE>
Patent GB-2174565-A (GB)
Title: Decision-feedback QPSK demodulator
Inventor: TSANG CHUNG KWAN
IPC: H04L27/227
Filed: 1985-05-01
Abstract: A QPSK demodulator for recovering a carrier signal and demodulating a QPSK data signal. The input phase modulated signal 100 is multiplied 101, 103 with a regenerated carrier signal to produce in-phase and quadrature signals (I, Q). Inverse signals (I, Q) are additionally formed by inverters 106,107. Each of signals (I, I, Q, Q) is compared in respective voltage comparators 116-119 with a reference 120, and the comparator outputs control switches 112-115 so that the proper phase error signal is selected to control a voltage-controlled oscillator 139. If the comparator outputs are detected 130 as overlapping, the control of switches 112-115 is inhibited 132-135 and a fixed potential 137 is applied to the loop filter 138, so that a guarding signal is inserted between phase segments for fast acquisition. Finally, a demodulator for a differentially encoded QPSK signal applying the same invention with an additional translation means comparing relative change of phase is also disclosed. <IMAGE>
Patent GB-2158165-A (GB)
Title: Linear motion bearing
Inventor: WREN FREDERICK JAMES
IPC: F16C29/00
Filed: 1985-05-02
Abstract: A linear motion bearing comprising an inner cylindrical sleeve 1 and an outer cylindrical sleeve 2 mounted coaxially to define therebetween an annular space 3. The sleeves are maintained in axial separation by a length of wire 5 which is elastically coiled into the form of a multi-turn helix which permits relative axial movement between the sleeves 1 and 2. A method of assembling such a bearing in a state of radial preload is also described. A second coil 11 of thinner wire may separate the turns of wire 5 to reduce friction or two coils 5 may be provided with windings of opposite hands. The wire 5 may be solid or may itself consist of a wire coil (Fig. 13). <IMAGE>
Patent GB-2169760-A (GB)
Title: Starter for a fluorescent lamp
Inventor: KAO CHENG-PI
IPC: H05B41/04
Filed: 1985-11-11
Abstract: A starter for a fluorescent lamp utilises the heating of the filaments of the fluorescent lamp L and quick activation of a back e.m.f. of high voltage to start the fluorescent lamp substantially instantaneously. The circuit includes mainly a capacitor C1 connected parallel to the lamp tube L, a series connection of elements including a capacitor C2, a diode D, and a relay Ry. After the current flows into the starter, the armature of relay Ry will be attracted and delayed for a proper amount of time until the current flowing through the starter reaches the peak value, when the armature is released again. At this moment, the value of  DELTA i/ DELTA t in the starter will be a maximum, and therefore a high voltage back e.m.f. is produced to start the fluorescent lamp. <IMAGE>
Patent GB-2173930-A (GB)
Title: Physical modelling device for use with computer-aided design
Inventor: STOLL PETER A
IPC: G06F11/25
Filed: 1986-05-22
Abstract: A device for the modelling of a physical electrical component as part of an electrical logic simulation comprising: a logic simulation computer 11-19 coupled to a bus 22 for implementing an event driven algorithm; a first means 23 coupled to the bus for modelling the component when the component's state does not decay over time, and receiving input vectors from the computer to present to the component; a second means 24 for modelling the component when the component must be operated at a minimum rate in order to function properly and when the component is uninitializable, the means 24 including a memory for receiving and storing the input vectors from the computer and presenting them to the component in a continuous series; the first and second means comprising a plurality of channels, the channels including detecting means and driving means, the driving means including tristatable drivers; whereby the component can be utilized in a logic simulation without software modelling. <IMAGE>
Patent GB-2196565-A (GB)
Title: Welding base material and method and apparatus for forming the same
Inventor: KUSADA SHOHEI
IPC: B23K33/00
Filed: 1986-10-28
Abstract: A welding base material is so formed that the portion to be welded to another welding base material has a thickness more than that of the other part. This assures that the welded structure has no reduction of strength after completion of welding operation. The welding base material is formed by rolling operation. An apparatus (15) for forming a welding base material includes means (16) for holding a plate (8), means (18) for rolling the end part of the plate while moving therealong and a heating means (17). <IMAGE>
Patent GB-2200179-A (GB)
Title: Flanged joint
Inventor: PORTER BARRY
IPC: F16L23/032
Filed: 1987-01-23
Abstract: A flanged joint for e.g. a connection between pipes carrying high-pressure fluid, in which there are two pairs of mating joint faces 13 and 18 at radially inner and outer positions respectively on opposing flange faces. Fastening means 16 pass through a clearance 15. There is a small axial difference between a radial plane including the inner mating faces and a radial plane including the outer mating faces, so that when the joint is initially assembled as in Figure 1, a small gap remains at 18. This gap is closed when the fastening means are correctly tightened. The improved joint is resistant to     a) overstressing during tightening;   b) axial tension; and   c) external bending stress.   <IMAGE>
Patent GB-2192816-A (GB)
Title: Grinding of card clothing and card cylinders
Inventor: BOOTH GRAHAM RHODES
IPC: B24B19/18
Filed: 1987-06-23
Abstract: In a machine for grinding card clothing or card cylinders which can be attached to the cylinder by means of brackets 12 and where a grinding device mounted on a carriage 13 traverses parallel to the axis of the cylinder, grinding is performed not by a grinding wheel but by an endless abrasive belt 20 mounted on a pair of pulleys on the carriage. This enables efficient and accurate grinding, and at the same time allows easy replacement of the belt. <IMAGE>
Patent GB-2196805-A (GB)
Title: Low voltage electroluminescent lamp driver circuits
Inventor: KAMENS BRUCE H
IPC: H05B44/00
Filed: 1987-07-17
Abstract: An electroluminescent lamp driver circuit for backlight illumination in watches comprises a CMOS monolithic integrated timing circuit 15 operating in an astable mode and driving a transistor 16 connected as an inverter-amplifier to provide repetitive pulses to the primary winding of a step-up transformer 12. The transformer has its secondary winding 14 connected across an electroluminescent lamp 11 to form a parallel resonator circuit. The components R1, R2, C1, C2 associated with the timer 15 are chosen so that transistor 16 is driven at the resonant frequency of circuit 11, 14, a capacitor C2 providing feedback to ensure that the driver circuit operates in synchronism with the resonant circuit 11, 14. One terminal of the lamp 11 and of the secondary 14 may be connected to the positive terminal of the battery supply (Fig. 2). The transformer provides a step up ratio of 30 to 1 and may be an autotransformer (Fig 3). <IMAGE>
Patent GB-2218869-A (GB)
Title: Frequency source using PLL'S
Inventor: BROWN DAVID ALAN
IPC: H03L7/22
Filed: 1988-05-18
Abstract: An agile frequency source comprising a plurality of substantially identical frequency adaptive divider-less translation phase lock loops (1-4) connected in cascade wherein the connection between the output (Fout) of each loop except the last and the input (Fin) to the next loop includes frequency dividing means (21) and mixing means (22) wherein the frequency divided output of a loop is mixed with a frequency (F1) to form a first translation oscillator input (1TO) input for each loop except the first, and each loop feedback path includes means for mixing down the intermediate frequency with a selected one of a number of different second translation oscillators frequencies (2TO) to the reference frequency (Fref) of the loop for frequency/phase detection. <IMAGE>
Patent GB-2225592-A (GB)
Title: Garment pressing apparatus
Inventor: EVERETT NICHOLAS WYNNE
IPC: D06F71/18
Filed: 1988-11-23
Abstract: In order to accelerate drying whilst also satisfactorily pressing multiple ply areas of a garment, such as front strap, cuffs, pockets and collar of a shirt or jacket 60, pressing apparatus is provided with respective press heads (18) 20, 22, 24 shaped to fit against these areas when the garment is located, in customary manner, on a hollow form and tensioned. The press heads (18) 20, 22, 24 themselves are hollow and perforated. In use suction pressure is applied through the press heads to suck steam and/or air (supplied through the form, which is perforated) preferentially through these areas, along with any residual moisture in the garment material, whilst effectively pressing these areas by holding them in contact with the respective press heads. <IMAGE>
Patent GB-2225850-A (GB)
Title: Pressure sensing device
Inventor: CATTELL ALAN FRANK
IPC: G01L11/02
Filed: 1988-12-09
Abstract: The device employs no moving parts, and comprises a thin metallic film 2 exposed to a medium which exerts pressure on the device, and means for applying light to the film over a range of angles of incidence to excite resonance in the device. Means are provided to sense where in the range said resonance occurs to generate an indication of the refractive index of the medium for comparison with data indicative of a relationship between refractive index and pressure for the medium. <IMAGE>
Patent GB-2213946-A (GB)
Title: Engine testing method and system therefor
Inventor: KATSUMATA TERUHISA
IPC: G01M15/04
Filed: 1989-01-12
Abstract: The performance of an automotive engine 12 is tested by accelerating the engine while imposing a predetermined load 28 on the engine and measuring the rotational speed of the engine. Rotational speed data per unit time of said engine is measured during acceleration thereof after it has started to operate, and rotational acceleration of the engine is calculated by processing said rotational speed data. The calculated rotational acceleration is compared with rotational accelerations of a normal engine and engines with intentionally given troubles e.g. ignition phase lagging or leading, timing belt lagging or leading, spark plug failure or compression leakage, and whether the performance of the engine is acceptable or not is determined, and if unacceptable the cause of a trouble of the engine is estimated, based on the result of the comparison. A cylinder 44 maintains tension in endless driving belt 18 being reduced by vibration. <IMAGE>
Patent GB-2236288-A (GB)
Title: A plastics fuel tank, e.g. for a vehicle
Inventor: PARDY RONALD PETER
IPC: B29C49/20
Filed: 1989-09-13
Abstract: A spacer body 16 is located in the tank internal space and welded to opposite walls 12, 14 of the tank in order to prevent the tank expanding under the influence of high internal pressures. The spacer (16) may have a region which is adapted to rupture when subjected to a tension load above a predetermined limit. The spacer can be incorporated in the tank when the tank is blow moulded by being supported on a support pin (30) which is pulled out of the spacer and out of the tank after moulding. <IMAGE>
Patent GB-2238684-A (GB)
Title: Reducing distortion by cross-coupled amplifier arrangement
Inventor: SANDMAN AUBREY MAX
IPC: H03F1/32
Filed: 1989-10-11
Abstract: Feedback resistors associated with amplifiers A2 and A3 produce, at the amplifier inputs, a measure of the distortion which each amplifier produces. The signal at each input is coupled via amplifiers A1 and A4 to the other inputs. Bond-pass filters may be used to disconnect the coupling at high frequencies to reduce a peak which otherwise appears at the high bond edge. <IMAGE>
Patent GB-2228955-A (GB)
Title: Joist hangers
Inventor: HARRIS CHARLES EDWARD
IPC: E04B1/26
Filed: 1989-11-21
Abstract: Upper, horizontal bearing plate 42 or 53 is connected to the vertical back plate 43 or 61 by a bend including a radius profile 44 or 52 whereby no pressure is applied to the edge of supporting wall 41 along the length of the radius profile. The profile 44, 52 may extend the full width of the hanger or only over a part, the remainder 57, 58 having right angled bends. The hanger may be formed from a single metal blank and may include drainage and ventilation holes. <IMAGE>
Patent GB-2241776-A (GB)
Title: Heat transfer fluid
Inventor: PEARSON STEPHEN FORBES
IPC: F28D20/02
Filed: 1990-03-08
Abstract: A heat transfer fluid of enhanced heat transfer capacity comprises a non-freezing liquid (such as water-glycol mixture) having suspended therein a multiplicity of capsules (21) containing a freezable liquid (such as water). The capsules are usually disc or platelet shaped, and may be hollow or formed of a skinned or unskinned hydrogel. A refrigeration system using the heat transfer fluid comprises a central recirculating circuit(s) from which non-freezing fluid is drawn off via strainers to hold back the capsules into subsidiary cooling circuits before being returned to the central circuit. <IMAGE>
Patent GB-2236893-A (GB)
Title: Head drive mechanism
Inventor: KUROSAWA YUICHI
IPC: G11B21/02
Filed: 1990-09-24
Abstract: A head drive mechanism comprising a carriage 7 for mounting the head member thereon, drive mechanism 4-6 for driving the carriage to slide in the direction parallel to the surface of the disk member 3, and a signal transmitting member 14 capable of transmitting signals, one end of the signal transmitting member being electrically connected with the head member, and secured 12, 13 on the support member, the other end of the signal transmitting member being electrically connected to the recording/reproducing circuitry 100 and secured to a predetermined position which is fixed with respect to the disk drive device, the signal transmitting member being formed to have a resilient force for biasing the support member in the direction opposite to the direction in which the drive mechanism drives the carriage. <IMAGE>
Patent GB-2249844-A (GB)
Title: Thermal radiation imaging
Inventor: KEEFE ANTHONY DOMINIC
IPC: G01J5/48
Filed: 1990-10-22
Abstract: An infra red detector element comprises a surface of a semiconducting material which is in intimate contact with a phosphorescent or luminescent material capable of emitting visible radiation. The element may additionally include an inert plastics or ceramic support. The element forms part of a thermal imaging device.
Patent GB-2236806-A (GB)
Title: Turbocharger apparatus
Inventor: LEAVESLEY MALCOLM GEORGE
IPC: F01D17/16
Filed: 1990-11-07
Abstract: Variable turbocharger apparatus (2) comprising a housing (4), a compressor (6) mounted for rotation in the housing (4), a turbine (12) mounted for rotation in the housing (4), a first inlet (16) for enabling air to be conducted to the compressor (6), an outlet (18) for air from the compressor (6), a second inlet (20) for enabling exhaust gases from an engine to be conducted to the turbine (12), a chamber (22) which surrounds the turbine (12) and which receives the exhaust gases from the second inlet (20) before the exhaust gases are conducted to the turbine (12), and a piston (24) which is positioned between the turbine (12) and the housing (4) and which is slidable backwards and forwards to form a movable wall separating the turbine (12) from the chamber (22) which surrounds the turbine (12), the piston (24) having a plurality of vanes (102), the piston (24) being such that in its closed position it terminates short of an adjacent part of the housing (4) so that there is always a gap between the end (30) of the piston (24) and the adjacent part (26) of the housing (4), the piston (24) being biased to its closed position against pressure from exhaust gases in the chamber (22), and the piston (24) being movable by fork means (21) which locates in a groove (36) in the piston (24).
Patent GB-2238451-A (GB)
Title: Fish or shellfish breeding apparatus
Inventor: KOBAYASHI TOSHIAKI
IPC: A01K61/00
Filed: 1990-11-08
Abstract: A fish or shellfish breeding apparatus comprises a breeding water tank 1, an ozonizing device 6, 7, an activated carbon device 8 and a breeding water circulating device 2 wherein breeding water of sea water or a mixture of sea water and plain water is circulated in series in these device, and the ozonizing device 6, 7 is located at the upstream side of the activated carbon device 8 with respect to the flow of the breeding water. A further filter 3 and pH adjusting means 9 may be provided. <IMAGE>