baber/WOPTO huggingface dataset:
Patent GB-2150241-A (GB)
Title: Disc brake device automatic adjustment
Inventor: TAKEUCHI HIROO
IPC: F16D65/56
Filed: 1984-08-24
Abstract: The device includes a piston 50, an automatic adjuster 90 and a sleeve piston 110 within the cylinder 40 of a caliper body 20 wherein braking and adjustment are achieved by a hydraulic input, and said piston 50 is pushed by a mechanical input through said sleeve piston 110 and said adjuster for braking. The adjuster 90 comprises bolt 70 and nut 80; nut 80 engages piston 50 and is restrained from rotating while 70 has a clutch portion 73 engageable with a clutch face 114 on sleeve piston 110, when portion 73 moves away from face 114 during hydraulic actuation the adjuster 90 is extended. Cam shaft 170 and push rod 190 provide the mechanical input. An atmospheric chamber 116 is defined within sleeve piston 110. A number of embodiments are described and shown e.g. in Figure 5 an alternative arrangement of bolt 250 and sleeve piston 260 is illustrated, and various arrangements to prevent rotation of the sleeve piston are shown in Figures 9-13. <IMAGE>
Patent GB-2146348-A (GB)
Title: One-step process for preparation of overbased calcium sulponate greases and thickened compositions
Inventor: ELIADES THEO I
IPC: C10N30/12
Filed: 1984-09-05
Abstract: An improved 1-step process for preparing a thixotropic overbased calcium sulfonate complex in the form of a grease or thickened composition comprises forming a liquid mixture containing a liquid carrier material in the form of a volatile liquid hydrocarbon or a nonvolatile oil or a mixture thereof; a sulfonic acid having or including an aliphatic chain containing at least 12 carbon atoms and having a molecular weight in the range of about 300 to about 700; calcium oxide and/or calcium hydroxide; a member selected from the group of C1-C4 water-soluble aliphatic alcohols and water-soluble alkoxyalkanols; a water-soluble carboxylic acid; and water; agitating and heating said mixture to a temperature in the range of about 95 to about 200 DEG F and carbonating said mixture for a period of time to effect between about 80% and 100% of completion of carbonation whereby to produce a grease or thickened composition in which the reaction mixture is changed to a grease or a thickened composition containing colloidally dispersed particles of calcium carbonate which is produced in the form of calcite crystals.
Patent GB-2165979-A (GB)
Title: Monitor apparatus
Inventor: WOOD JOHN MICHAEL
IPC: G08B21/04
Filed: 1984-10-12
Abstract: A baby's or other subject's breathing, heart beat or other physiological activity is monitored by a transducer preferably a microphone 16 which is positioned in a module, the interior of which communicates with the interior of an air mattress via a tube. An electric circuit in the module amplifies, rectifies and integrates the output from the microphone and compares it with a noise threshold equivalent signal set by the resistor RV1. An alarm is sounded if the output ceases and does not resume within a predetermined interval set by the resistor R1 and the capacitor C2. Alternatively, instead of a microphone, a strain gauge, Piezoelectric plastics film or a body of conductive plastics foam material is secured to the mattress wall. <IMAGE>
Patent GB-2160219-A (GB)
Title: Carbon gasification
Inventor: SANTEN SVEN
IPC: C10J3/46
Filed: 1984-11-05
Abstract: The present invention relates to generating a hot gas consisting primarily of CO and H2 from a carbonaceous starting material which, in pulverulent form, together with oxidizing agent and optionally also a slag-former, is introduced into a gasification chamber, where it is combusted and partially gasified. The resultant gas mixture is then introduced into a shaft containing a bed of solid carbonaceous lump material. The physical thermal content of the mixture emerging from the gasification chamber is used in the coke bed to reduce the content of carbon dioxide and/or water in the gas. The gas generating process is controlled so that the gas leaving has a temperature and a composition suitable for a following process step.
Patent GB-2153599-A (GB)
Title: Brushless electric motor
Inventor: SATA NOBUYUKI
IPC: H02K29/12
Filed: 1984-12-17
Abstract: A brushless electric motor has a stator, a rotor 2 rotatably supported by the stator via bearings, and windings 11A,B,C adapted to produce a magnetic field when selectively energized to create torque between the rotor and the stator to thereby cause the rotor to rotate relative to the stator. To achieve selective switching of the windings of the motor to create the torque, the angular deposition of the rotor relative to the stator is detected by means 11a,b,c, adapted to detect a counter-electro-motive force when the rotor is relating relative to the stator and, at least at the start of rotation, by position detecting brushes (4,4') Figure 1 (not shown) fixedly fitted to the rotor and co-operating conductors 15 a,b,c, x fixedly fitted to the stator. <IMAGE>
Patent GB-2153598-A (GB)
Title: Microwave resonator device
Inventor: GOSLING IAN GILBERT
IPC: H01P7/10
Filed: 1985-01-17
Abstract: A microwave device includes a dielectric e.g. ceramic resonator 10 coupled to a signal path 11 and to a control path 12 which contains a varactor diode 15 to vary the frequency at which resonance occurs. The control path preferably includes a return port 13, and a low pass filter 14 to prevent microwave signals reaching the control means. The device is implemented as microstrips on a dielectric substrate. Resonator control is achieved entirely by a control voltage applied to input port 16. The device is described for use in a waveguide filter and a frequency discriminator. <IMAGE>
Patent GB-2155046-A (GB)
Title: Surface treatment of metal rings
Inventor: TOMMIS NORMAN
IPC: F16J9/26
Filed: 1985-02-18
Abstract: A metal ring of generally rectangular cross-section has its radially outer surface and its side surfaces treated by being stacked with its sides in contact with other rings in a chamber. Air is excluded from the chamber and a gaseous mixture of a carburising gas and a nitrogenous gas at a temperature of 450 DEG C to 650 DEG C is supplied to the chamber. The proportions (% by volume) of the gases is between 25:75 and 75:25. The mixture nitro-carburises both the radially outer surface of the stacked rings and the sides of the ring. If the rings are finish machined before treatment, they are ready for use as soon as they are removed from the chamber. The nitro-carburising treatment reduces wear on the treated surfaces. The rings are used as piston rings or sealing rings.
Patent GB-2176047-A (GB)
Title: Cathode ray tubes
Inventor: CAMP GEORGE HENRY
IPC: C09K11/77
Filed: 1985-04-29
Abstract: A thin-film cathode ray tube screen incorporates, in the thin-film, crystallites of average size in the range 0.025 mu m to 0.55 mu m (preferably 0.05 mu m to 0.35 mu m) thereby to enhance the brightness characteristics of the screen. The thin-film is formed of Yttrium Oxide (Y2O3) doped with 5 to 10 weight percent of Europium Oxide (Eu2O). The method of manufacturing the screen, includes depositing a thin-film on a substrate, and then annealing in the temperature range 1000 DEG C to 1500 DEG C (preferably between 1050 DEG C and 1250 DEG C) in order to promote the growth of crystallites within the thin-film. Preferably, the method includes sputter deposition of the phosphor material in the form of a thin-film followed by thermal annealing in air. <IMAGE>
Patent GB-2174496-A (GB)
Title: Level
Inventor: STRATTON ALBERT ERNEST
IPC: G01C9/12
Filed: 1985-04-30
Abstract: Arbor 1 carries weight 2 which is free to rotate so that pointers 11 and 12 remain vertical such that wherever the framework carrying arbor 1 and dials 19 and 20 is placed, a true angle will be apparent on both dials 19 and 20. Grub screws 13,14 allow adjustment. <IMAGE>
Patent GB-2285357-A (GB)
Title: Radar transmission/reception process for the removal of range ambiguity
Inventor: ELLEAUME PHILIPPE
IPC: G01S13/524
Filed: 1985-05-31
Abstract: A radar in which pulses are transmitted in bursts, having for each burst a given recurrence frequency fR and a given transmission frequency f, is characterized in that: each transmitted burst contains a first set of pulses having the same phase, and at least one other set of pulses for which each pulse has a phase proportional to the square of the position of the pulse in its set and in that: on reception (7), the inverse phase law (11) is applied, and then Doppler processing (12) is carried out in order to extract, when a target of trace p is detected, the Doppler frequencies resulting from the separate phase laws, on transmission, which cause the appearance of apparent Doppler frequencies corresponding to a translation (13) proportional to the number of the trace of the target of the Doppler frequency of that target. <IMAGE>
Patent GB-2176723-A (GB)
Title: Vibratory abrasive machine
Inventor: HSIN-CHIN TSENG
IPC: B24B31/073
Filed: 1985-06-21
Abstract: A vibratory abrasive machine includes a vibration container 1 and means for vibrating the container operatively connected thereto, the vibration container comprising an upper part 1A and a lower part 1B each being provided with a separate lining 1H for protection against abrasion, said parts being releasably connected at mating annular faces 1C such that the parts can be separated to effect repair or replacement of the lining of the upper and/or lower part. <IMAGE>
Patent GB-2163430-A (GB)
Title: Pesticidal benzoylphenylureas
Inventor: DRABEK JOZEF
IPC: C07C275/54
Filed: 1985-08-21
Abstract: Novel benzoylaminophenylureas of the formula   <IMAGE>  wherein  R1 is hydrogen, halogen, CF3 or C1-C4alkoxy,  R2 is halogen, C1-C4alkyl, CF3 or C1-C4alkoxy,  R3 is hydrogen, halogen, CF3 or methyl,  R4 is fluorine or chloride,  R5 is hydrogen, fluorine or chlorine, R6 and R7 are each independently of the other C1-C6alkyl, C3-C5alkenyl, C3-C5alkynyl, or C1-C4-alkyl which is substituted by 1 to 8 fluorine or chlorine atoms or by methoxy or ethoxy; or R6 and R7, together with the nitrogen atom to which they are attached, are the radical   <IMAGE> are prepared from novel amines. Compositions containing the novel ureas are used for controlling insects and representatives of the order Acarina. The novel ureas have larvicidal action, in particular against plant-destructive insects.
Patent GB-2167010-A (GB)
Title: Security documents adapted to reveal photocopying
Inventor: MERRY TREVOR
IPC: B41M3/14
Filed: 1985-10-03
Abstract: Patterned security documents are known which have, incorporated into the pattern, a comparison area and a signalling area which tend to blend together without contrasting when perceived by the unaided human eye but photocopied images of which tend to contrast with one another in a photocopy of the original document, so as to identify the photocopy as a counterfeit. This is accomplished by printing lines in the comparison area and signalling area which are beyond the resolution capability of the unaided human eye at normal viewing range, the lines in one but not the other of the two areas being within the resolution capability of a photocopying machine. In accordance with the invention the orientation of the lines in the comparison area is at an angle, preferably about a right angle, to the orientation of the lines in the signalling area and the lines are printed of metallic ink or other suitable reflective substance. Preferably the metallic ink line pattern is applied to a substrate of a relatively light colour. <IMAGE>
Patent GB-2168099-A (GB)
Title: A method of fabricating an underground concrete (or other cementitious) structure
Inventor: SMITHARD GRAHAM KENNETH
IPC: E02D5/18
Filed: 1985-12-03
Abstract: The structure is cast in situ to a level above the desired cut-off level and, before the concrete has set, a non-cementitious material e.g. water or a granular solid is introduced into the concrete in the region above the desired cut-off level so as to form a weakened zone in the region. The material is preferably introduced into the concrete by means of a pipe (1) having at its lower end a suitable outlet arrangement (3), e.g. in the form of a generally horizontal cross- member or a tubular pipe (4) provided with outlets. Fluid may be ejected into the structure from the pipe as the pipe is raised from a level just above the desired cut-off level, or alternatively fluid may be ejected from the pipe during both the lowering and raising stages. <IMAGE>
Patent GB-2476785-A (GB)
Title: Multiple beam optical device
Inventor: CAMERON EVAN STUART
IPC: F41G7/22
Filed: 1985-12-24
Abstract: A multiple beam optical device (Fig. 2) consists of a line of optical transducers 151-15, such as pyroelectric detectors, disposed in front of a concave mirror 13 the mirror being at the surface of a notional sphere 14 and the transducers at the surface of a notional concentric sphere 16 of twice the radius defining a focal plane for the mirror. The line of transducers defines a transducer plane 19 bisecting the sphere and each transducer is inclined to the plane by a fixed angle 9, the mirror spacing and transducer inclination defining an array of coplanar beams 27 which are mutually divergent after converging at a point 24 on a normal 22 to the transducer plane and passing through sphere centre 17. A single window 23, such as a zinc selenide for passing far-infra—red radiation, is located at the point 24 and its aperture may define the path dimensions of the beam paths. The transducers are displaced from the beam paths between the mirror and window and a simple rugged sub—unit may be made defining the relative postions of transducers and mirror (Fig. 5). Several sub—units may use a single window.
Patent GB-2171233-A (GB)
Title: Monitoring tyre inflation
Inventor: COOPER TOM
IPC: G08B21/18
Filed: 1986-02-18
Abstract: In a tire inflation alarm a switch is arranged so as to close below a predetermined pressure, whereby to activate a signal transmission system. As shown, the switch contacts 52,62 are separated by excess pressure acting on diaphragm 36, and are closed (in the absence of such pressure) by a spring 56. The switch arrangement is screwed onto an inflation valve, and has a projection 48 to depress the valve stem 16. The transmitted signal may be a coded radio signal. <IMAGE>
Patent GB-2187200-A (GB)
Title: Method of preparing Ag-SnO system alloy electrical contact materials
Inventor: SHIBATA AKIRA
IPC: H01H1/0237
Filed: 1986-02-28
Abstract: Ag-SnO system alloy electrical contact materials. The Ag alloy before internal oxidation thereof contains Sn in an amount of 0.5-10 weight%, and 0.5-15 weight% of SnO2 and at least one of In 0.1-5% and Bi 0.01-5% when the Sn content is greater than 4.5%. The existence of SnO2 particles in the alloy accelerates the internal oxidation speed, allowing oxygen to readily pass aside and between the particles, while the internal oxidation per se makes the alloy more dense by eliminating spaces between SnO2 grain particles on account of the volumeric expansion of Sn which results from the internal oxidation thereof.
Patent GB-2173637-A (GB)
Title: Piezoelectric transducer and components therefor
Inventor: WILSON PAUL
IPC: H01L41/29
Filed: 1986-03-21
Abstract: A piezoelectric transducer component comprising a layer 10 of piezoelectric material having conductive electrode layers 12(16 Figure 2) applied to opposite surfaces thereof, the conductive layers having overlapping areas defining an active piezoelectric region between them, and non-overlapping areas to which electrical connections are made. One of the conductive layers (16) is larger in area than the opposite conductive layer 12 and has a window 18 in it in register with a portion 14 of the opposite conductive layer to which portion an electrical connection 24 is made. Suitably an electrical connection (30 Figure 2) is made with the larger conductive layer (16) through an opening 28 in the piezoelectric layer in a said non-overlapping area of the larger conductive layer. The leads 22, 26 to the electrodes extend in the same direction from that surface of the film which carries the conductive layer 12, 14 of smaller area. No bending of the non-active connector regions is required. <IMAGE>
Patent GB-2174705-A (GB)
Title: Benzodioxin and benzoxazine derivatives
Inventor: ALLEN ROBERT MANNING
IPC: A61K31/443
Filed: 1986-05-07
Abstract: A compound of formula I   <IMAGE>  in which R<1> and R<2> each represents a hydrogen atom, a C1-4 alkyl group or, together with the nitrogen atom to which they are attached, R<1> and R<2> form a 4 to 8-membered ring which may contain an oxygen atom or another nitrogen atom, which nitrogen atom may have a C1-4 alkyl group as substituent, X represents an oxygen atom or a group NR<4> in which R<4> represents a hydrogen atom, C1-4 alkyl group, a phenyl group or a phen-C1-4-alkyl group, the alkyl, phenyl or phenalkyl group being unsubstituted or substituted, or    R<4> represents a nitrogen protecting group;    m is 1 to 4;    n is 1 or 2; and    R<3> represents a group of formula II, III, IV, V or VI   <IMAGE>  in which R<5> represents a hydrogen atom or a C1-4 alkyl group; and R<6> represents a hydrogen atom or a C1-4 alkyl group, a C2-4 alkenyl group has histamine H-2 antagonist activity, and may be used to produce medicaments.
Patent GB-2215163-A (GB)
Title: Amplification device for telephones
Inventor: CONNOR RONALD GEORGE
IPC: H04M1/62
Filed: 1986-05-14
Abstract: A portable folding bsttery operated pocket sized device that upon application of telephone handset a loud "hands free" telephone conversation may be conducted where previously this was limited to specially equipped office telephones. The device includes a pressure sensitive switch so that the device is only activated when a telephone handset is placed on the device. <IMAGE>
Patent GB-2177663-A (GB)
Title: Motor vehicles such as tractors
Inventor: VAN DER LELY CORNELIS
IPC: B62D61/10
Filed: 1986-07-08
Abstract: A tractor has, on each axle, inboard and outboard wheels (41, 42, 57, 58), which are provided with pneumatic tyres. The tyres of the inboard wheels (41, 58) are narrower than those of the outboard wheels (42, 57) and have a higher inflation pressure. The track width of the inboard wheels is approximately 150 cms. The provision of eight wheels as illustrated reduces pressure of the tractor on the ground when drawing e.g. a plough or harrow. The low outer wheels 42, 57 can be removed to enable the tractor to be used with the narrower tyre wheels 41, 58 in row cultures. The tractor is provided at the front and back with a lifting device 45, 72. Front and rear power take off shafts 26, 22 are drivable through a change speed gear box 18 from the driver's cab, which box operates independently of the drive to the wheels which is by hydraulic motors 39 supplied by pumps 14, 15 driven by an engine 6. <IMAGE>
Patent GB-2185303-A (GB)
Title: Heating a plurality of liquids
Inventor: HAYES CECIL
IPC: A47J31/24
Filed: 1986-09-04
Abstract: An apparatus (10) for heating and dispensing a plurality of liquids comprises a housing (18) incorporating a plurality of independent liquid heating and despensing units (12, 14 and 16). Suitably, one hot water unit (14) and two coffee/tea making units (12 and 16) are provided. The containers in which tea or coffee is stored after it has been brewed may be removed from the apparatus to dispense the contents at a remote location, with the brewing and heating portions of these units remaining in situ with the rest of the apparatus. The liquid containers are insulated with the valves of the liquid dispensing taps being disposed within the container walls to minimize heat loss. The inlets to the containers storing the hot liquid are provided with steam traps to prevent steam loss. <IMAGE>
Patent GB-2185235-A (GB)
Title: Pay-off apparatus
Inventor: BAILEY COLIN IDRIS WATKINS
IPC: B65H57/20
Filed: 1987-01-12
Abstract: A pay-off apparatus, e.g. for welding wire, comprises a guide arrangement for guiding wire, being drawn from the reel, through a fixed point 55 along the axis of the reel as it is drawn over the rim of the reel or over the rim of an element mounted to the end of the reel. A retarding arrangement 30 is provided and may comprise a radiating array of bristles through which the wire brushes as it slides around the rim when being drawn from the reel and through the point 55. A framework 50 may be provided to support the guide eye 55, the framework securing around the lower flange of the reel or around a pallet on which the reel stands. The guide may be in the form of a tube 46. <IMAGE>
Patent GB-2200527-A (GB)
Title: Sweetening compositions for addition to animal feedstuffs and animal feedstuffs containing such compositions
Inventor: CALDER IAN ROBERT
IPC: A23L27/30
Filed: 1987-01-24
Abstract: A sweetening composition for an animal feedstuff comprises saccharin and a protein sweetener, the protein sweetener masking the bitter, metallic after taste of the saccharin and being present in an amount less than that required to produce a sweetening effect. The invention also provides an animal feedstuff containing such composiiton wherein the protein sweetener, which is preferably thaumatin or monellin, is present in an amount of up to 0.8 ppm in the animal feedstuff.
Patent GB-2204063-A (GB)
Title: Refining of tin
Inventor: HARRIS RALPH L
IPC: C22B25/08
Filed: 1987-04-29
Abstract: Lead and bismuth are rapidly extracted from tin by exposing a shower of molten tin droplets containing lead and/or bismuth impurities to a vacuum which enhances the rates of lead, bismuth and tin evaporation, and a flow of scavenging gas. Tin containing 0.5 wt.% lead and 0.5 wt% bismuth is refined to 0.02 wt.% lead and 0.02 wt.% bismuth in one hour by forming a molten tin shower in a vacuum of 10 to 100 pascals by means of gas-lifting molten tin through 8 vertical conduit and discharging the lifted tin as a shower of drops into a separator (40). Scavenging gas is injected through nozzle 47 at a rate of 2 to 50 Nm<3> per tonne hour of tin treated. The separator removes the shower of molten tin drops, which fall back into the molton bath, from the lifting, scavenging and evaporated metal gases. These flow into a vacuum conduit to a condenser (30) where they are condensed as a liquid. <IMAGE>
Patent GB-2206577-A (GB)
Title: New process for the preparation of therapeutically useful pristinamycin IIB sulphone derivatives
Inventor: CHATTERJEE DEVNANDAN
IPC: C07K5/078
Filed: 1987-07-07
Abstract: Pristinamycin IIB sulphone derivatives are prepared by oxidation of the corresponding sulphides with hydrogen peroxide in the presence of an alkali metal tungstate.
Patent GB-2197187-A (GB)
Title: Instrument for drawing and/or writing
Inventor: TOK LEUNG YEE
IPC: B44D3/22
Filed: 1987-10-08
Abstract: A drawing/writing instrument, more particularly a Chinese fountain writing brush, comprises a tube (21), a brush head (8), a brush cap (28), two ink flow controlling valves (18,19) and a stopper cap (25). The two ink flow controlling valves (18,19) bear corresponding ports. A partition plate (2) is connected at one end to the stopper cap (25), and at the other end to the valve (19). Turning the stopper cap turns the partition plate and, thus, the controlling valve (19). As a result, the opening of the ports on the controlling valves (18, 19) is adjustable. In another arrangement, adjustment of the controlling valve is effected by turning a brush head ring which is fitted with a bush which holds the brush head. A third arrangement has the brush end of the passage in the tube (21) narrowed down and an ink flow adjustment knob, which can be moved in and out, is fitted at the said narrow passage. <IMAGE>