baber/WOPTO huggingface dataset:
Patent GB-2061759-A (GB)
Title: Process vessels for use in the chemical industry
IPC: B01J19/00
Filed: 1980-09-05
Abstract: In a repair sleeve (4) for a glass enamel chemical process vessel (1), an outwardly directed flange (5) is located at one end of the sleeve (4) and is arranged to extend over an end of a vessel (1) to be repaired. The sleeve (4) is surrounded by an elastomeric ring (6) in an expanded condition. The ring (6) is positioned near the flange end of the sleeve and is located in a groove or other retaining abutment to limit movement of the ring (6) towards the flange (5) when the sleeve is inserted in a vessel (1). The ring (6) projects outwards beyond the abutment into contact with the interior of the vessel. <IMAGE>
Patent GB-2090007-A (GB)
Title: Light-sensitive composition for a photorecording material
IPC: G03C1/675
Filed: 1980-12-18
Abstract: According to the invention, the light-sensitive composition for a photorecording material incorporates a ferrocene derivative, a halohydrocarbon, a toner compound, and an organic solvent. The toner is preferably chosen from indole,  beta -naphthol, resorcinol,  alpha - naphthol, or  alpha -naphthylamine. The aforementioned composition finds application in photography, in conventional printing trade for making printing formes, in photo-reproduction of micrographs and micromaps, in radioelectronics for producing nonsilver masks for making integrated circuits, and in some other fields.
Patent GB-2092479-A (GB)
Title: Sieving apparatus
IPC: B07B7/06
Filed: 1981-02-06
Abstract: Sieving apparatus comprises a closed container 10 partitioned by a horizontal sieve screen 20 into a cylindrical upper part and a generally conical lower part. Material to be sieved is fed tangentially to the container 10 from a supply hopper 30 through an inlet in the upper part, and fines are conveyed through an outlet in the lower part to a collection hopper 40 for subsequent discharge. A fan unit 43 draws air through the apparatus from the supply hopper 30 to the collection hopper 40 to entrain the material to be sieved and the fines while the container 10 and screen 20 are vibrated to assist the sieving process. <IMAGE>
Patent GB-2074663-A (GB)
Title: Hydraulic Drive System for a Hammering Tool
IPC: E21B4/14
Filed: 1981-02-23
Abstract: A hydraulic drive system for a hammering tool provides a compact system with comparatively short flow paths which are largely accommodated within a control cylinder (27), a slide valve (35) and a control collar (31) which encircle a central control shaft. The slide valve (35) is arranged between the rearward end of a working piston (to the left of Fig. 3) and a control groove (52) in the control shaft. A working surface of the working piston is connected by way of an intermediate chamber (37), in dependence on the axial position of the slide valve (35), either with a fluid return groove (47) and a fluid return passageway (45) or with a pressurised fluid groove (42) and a pressurised fluid supply passageway (24). A flushing medium passage (34) extends centrally through the control shaft and on to the tool. <IMAGE>
Patent GB-2094600-A (GB)
Title: Electrical immersion heaters
IPC: H05B3/78
Filed: 1981-03-10
Abstract: An electrical immersion heater for use, e.g., in heating a fish tank, comprises a resistive carbon film 11 sprayed or screen printed, or otherwise deposited on one surface of an electrically insulating substrate 10 which is conveniently of glass-fibre reinforced material. The film 11 forms a heating element. Low resistance electrodes, e.g. copper strips 12, 13, are spaced apart on the substrate underneath but in electrical contact with the film 11 for feeding power thereto, the power supply being controlled by an electronic circuit unit, including a thermostat, located on the substrate. The whole assembly is sealed and encapsulated in water-repellant material. A further electrode 14 is used to operate a visual indicator. <IMAGE>
Patent GB-2079890-A (GB)
Title: Reinforced Tubing or Cable
IPC: H01B9/00
Filed: 1981-04-08
Abstract: A method of forming a protective tube comprises extruding an elastomeric or thermoplastic material to form a sleeve 2 enclosing a spiral eg of high tensile steel. The invention is particularly applicable for forming a tube within a cable as shown for the passage of a welding rod and inert gas but is also applicable to the production of protected control cables within a multi-core power cable for withstanding under-water pressures, by forming the spiral around the insulated control cables. (Figure 3 not shown) The control cables may be electrical or optical. <IMAGE>
Patent GB-2075119-A (GB)
Title: A control system for a multi- cylinder internal combustion engine operating with cylinder disablement
IPC: F02D41/36
Filed: 1978-10-09
Abstract: The control system comprises an engine speed detector (74) and an engine load detector (78). The output from the load detector (78) is compared in comparators (82, 80) with upper and lower power reference values respectively. When the engine load falls below the lower power reference value certain of the cylinders are deactivated to increase the individual loads for the activated cylinders. Whereas when the engine load rises above the upper power reference value all the cylinders are activated. When the engine speed falls below a preset value, the partial cylinder mode is disabled regardless of the engine load to give full engine output power. The preset value is reduced when the engine is idling. <IMAGE>
Patent GB-2076783-A (GB)
Title: Packaging Container
IPC: B65D5/24
Filed: 1981-05-15
Abstract: A packaging container is formed from a blank having joint flaps (13, 14) joining wall panels (11, 12) and connected to edge flaps (15, 16) of those panels by connection portions (23, 24). The joint flaps (13, 14) are no greater in height than the wall panels (11, 12) and the connection portions (23, 24) are substantially narrower than the width of the edge flaps (15, 16). <IMAGE>
Patent GB-2079988-A (GB)
Title: Gas turbine engine fuel control system
IPC: F02C9/26
Filed: 1981-06-30
Abstract: A fuel system includes a known hydromechanical governor fuel control (11), which has an electromechanical trim device (12). The trim device (12) is controlled by a circuit which includes an error signal generating means (16) for producing an error signal representing the difference between the desired and actual values of an engine parameter (e.g. speed), a proportional-plus-integral controller circuit (17, 18), a trim datum signal generator (21), and a differentiator (22) which connects the generator to the integrator of the controller, so that in transient conditions the integrator output will ramp to a new value required for a new steady state condition. <IMAGE>
Patent GB-2103755-A (GB)
Title: Mechanism having a reciprocating member coupled to a rotary member
Inventor: ROBERTS HENRY EDDINGTON
IPC: F16H21/36
Filed: 1981-08-08
Abstract: This invention is to reduce stresses in the gears of hypocycloid machines when used for converting reciprocating motion to rotary motion, particularly when applied to internal combustion engines. The invention provides for the shaft carrying the pinion 16 which meshes with the annulus 21 to incorporate a flywheel 29 or flywheels. The load applied through the connecting rod big end bearing 23 causes rotation of the pinion shaft and hence applies forces to the gear teeth of the pinion 16. The effect of the flywheel 29 fixed to the pinion shaft is, by its inertia, to reduce the peak loads on the gear teeth beneficially. <IMAGE>
Patent GB-2082037-A (GB)
Title: A shepherd's crook
IPC: A01K15/00
Filed: 1981-08-19
Abstract: A shepherd's crook has a head or curved end which comprises an inner elongate opening 14 and an outer relatively broad opening 16. The crook can be used to catch a sheep by the neck, using the broad part of the head or by the leg using the elongate part. An advantage over known crooks, which have only a broad opening, is that less dexterity is required to catch the sheep by the leg. <IMAGE>
Patent GB-2086624-A (GB)
Title: Multi processor computer system
IPC: G06F15/16
Filed: 1981-09-22
Abstract: Prior art multiprocessor systems either employ a single set of common resources that are shared by all the processors, or employ a plurality of resources, each of which are dedicated to a particular processor. In this latter situation, serial intercommunication links requiring both the transmitting and the receiving processors to participate are used to transmit data between processors. The subject processor interconnection system interconnects n independent processors (209-1 to 209-n), each of which has associated therewith a plurality of resources (205-i to 207-i), which resources are connected to the processor by a local bus (214-1 to 214-n), such that any processor in the system has direct access to any system resource even though such a resource may be associated with another processor.
Patent GB-2085991-A (GB)
Title: Pipe coupling
IPC: F16L21/04
Filed: 1981-10-05
Abstract: The pipe coupling has an annular flange member (7) having a tapered inner surface portion (8) and a plurality of holes (9) therethrough. Bolts (16) project through the holes (9). A pipe-engageable collet (10) is mounted in the flange member (7) and has a tapered outer surface portion (12) engaged with the tapered inner surface portion (8). An annular, retainer element (13) engages a surface of the flange member (7) from which the bolts (16) project and overlaps the collet (10). An annular retainer element (14) overlaps an outer peripheral portion of the seal back-up member (13) and has a plurality of holes (15) therethrough which are in substantial alignment with the holes (9) through the flange member (7). The bolts (16) project through the holes (15) in the retainer element 14 and the seal back-up member (13) and collet (10) are retained in position by virtue of the engagement of the retainer element (14) with the seal back-up member (13). <IMAGE>
Patent GB-2109256-A (GB)
Title: Improved method of drying and apparatus for drying
Inventor: BRADSHAW WILLIAM
IPC: F26B5/04
Filed: 1981-11-10
Abstract: The invention relates to a method of drying moisture containing material by subjecting the material to a pressure below atmospheric pressure e.g. by a steam ejector 18. Because of the reduced pressure, moisture is given up by the material to be dried in the form of water vapour along line 14. This vapour is passed into a condenser 24, which is vented to allow air to escape, but the vapour travelling towards the vent 48 is caused to counter flow with an incoming relatively cold fluid from a supply 44 so that the temperature of the vapour/ air mixture is reduced in order to reduce the quantity of water vapour carried away by the vented air. Consequently, there is a saving in heat energy, which manifests itself in the condensate. <IMAGE>
Patent GB-2111098-A (GB)
Title: Improvements in or relating to pick retaining devices
Inventor: BROWN HENRY MCGAW
IPC: E21C35/193
Filed: 1981-11-25
Abstract: A shanked tool (particularly a mineral mining tool) is received in the socket 3 of a holder 4 provided with a cam or eccentric 5 which can be turned so that a portion of its surface engages the tool shank to retain the shank in the socket. The cam or eccentric may be disposed wholly within the socket and may extend across the socket from side to side. The rotational axis of the cam or eccentric may be inclined at an acute angle to the socket axis normal. Where the socket is rectangular, the rotational axis of the cam or eccentric may lie at an acute angle to the side of the socket from which the cam or eccentric is arranged to project. The cam or eccentric may comprise threaded portions engaging correspondingly threaded portions of the holder. <IMAGE>
Patent GB-2111361-A (GB)
Title: Fishing reel attachment
Inventor: RAYNER NEIL
IPC: A01K89/0155
Filed: 1981-12-15
Abstract: A lever carries at one of its opposite ends a line-braking pad (12) and at its other end a finger trigger (13). The line-braking end (12) of the lever fits pivotally over one of the crossbars (16) of a fishing reel so that the brake pad lies closely adjacent the surface of the line wound onto the spool and so that alternative movements of the trigger (13) about the pivot (16) will bring the pad respectively into and out of braking engagement with the line surface. The trigger (13) and the rod (19) both lie on the same side of the spool axis in use, and to brake the line the trigger is moved in a direction generally along and towards the base of the rod. <IMAGE>
Patent GB-2098153-A (GB)
Title: Insulating conductor rails
IPC: B60M1/30
Filed: 1982-03-01
Abstract: The lower part and the side parts of the conductor rail of a railway track are insulated by applying thereto a composition comprising an electrically- insulating mineral filler and an epoxy resin binder.
Patent GB-2121121-A (GB)
Title: Seal for a rotary machine
Inventor: ETSION DR IZHAK
IPC: F16J15/34
Filed: 1982-04-21
Abstract: A hydrodynamic, non-contacting end-face seal for a rotary machine comprises a rotor (1) mounted on the machine shaft (3) and an annular stator (2) having a surface facing the flat and smooth surface of the rotor at a short distance therefrom. The stator encloses the machine shaft, is eccentrically positioned with respect to the rotor center, and is urged towards the rotor surface by a helical spring (7). The surface of the stator ring is shaped to form a circular rim separated from the rotor surface by a very small gap of varying width (H, h), and the space enclosed by this rim is raised to a higher pressure than the surroundings by the hydrodynamic action of the surface velocity of the rotor on the liquid in the machine, by making the gap width (h) between the rotor and stator of a mechanically permissible minimum at all points of the rim at which the velocity vector of the rotor surface extends from the inside of the rim to the outside, and the gap width (H) larger at all points of the rim at which the velocity vector extends from the outside to the inside. The gap width is changed in accordance with pressure conditions in the machine against the action of the helical spring, or under the control of a pressure or fluid velocity sensor via a mechanical or hydraulic mechanism. The spring (7) may be replaced by a bellows or a series of springs. The surface of the annular stator may have two or four lobes. The roles of the rotor and stator may be reversed. <IMAGE>
Patent GB-2099960-A (GB)
Title: Viscous fluid couplings
IPC: F16D35/02
Filed: 1982-05-18
Abstract: In a fan coupling unit, a pumping element (14) pumps shear fluid from the working chamber (7) into the reservoir chamber (6) through a pumping passage (12). The fluid returns through a return passage (19) from the reservoir chamber into the working chamber. First valve means (11) control flow through the return passage. Second non-return valve means (15) prevent the flow of shear fluid from the reservoir chamber to the working chamber through the pumping passage, to avoid undesirable fan speed variations. <IMAGE>
Patent GB-2099660-A (GB)
Title: Radiating domes for loudspeakers
IPC: H04R7/12
Filed: 1982-05-26
Abstract: A radiating metal dome for use in loudspeakers is made of copper, silver or gold, or of an alloy of one of these metals with additions not sufficient substantially to reduce the thermal conductivity. This ensures good heat dissipation from the coil (14). The dome may comprise a plurality of layers (10, 12) at least one of which is a layer of a metal or a metal alloy, in intimate contact. This sandwich construction enables an improved frequency response characteristic to be achieved. The metal or metal alloy layer or layers may also be provided with one or more layers of a protective material and/or a sound damping material. A non-metallic filler layer (18) may be provided between two layers (10, 12) of metal or metal alloy. <IMAGE>
Patent GB-2126039-A (GB)
Title: MTI Radar or lidar
Inventor: SPIES HANS
IPC: G01S17/50
Filed: 1982-08-20
Abstract: Detector means for effecting unambiguous target discrimination on the basis of moving parts of the target or fluctuations in exhaust gas from a propulsion unit. The sensor employed emits electromagnetic waves (light in the only embodiment) which are reflected by the target. In the case of targets with moving parts the shape of the reflected pulse varies with time. This variation of pulse shape is evaluated and utilized to identify the target on the bases of certain characteristics typical of the target. The detector may be used in systems for controlling projectiles or activating warheads. <IMAGE>
Patent GB-2126002-A (GB)
Title: Automatic control for recording apparatus
Inventor: BREESE SIMON WILLIAM
IPC: G11B31/00
Filed: 1982-08-25
Abstract: Teletext data is transmitted containing, in each page on each channel, a current programme code indicating the television programme currently being transmitted in the same channel. A video cassette recorder 11 has a switchable monitoring tuner/demodulator 20 which switches cyclicly through the transmission channels and supplies sufficient demodulated video to a teletext data acquisition unit 21 to allow the program codes of each channel to be supplied as parallel data to a selector and control unit 19. The transmission signals are coupled from the aerial 10 through an amplifier 13 to a switchable tuner 17 which is controlled by the unit 19. The output of the tuner 17 feeds a video recording/playback unit 18 which can be switched on to record by the unit 19. Selected programme codes are entered into a RAM in the unit 19 by use of channel selector switches 23 and programme code keys 25. When the unit 19 detects that a current programme code is the same as a preselected programme code, it switches the tuner 17 to the relevant channel and switches on the unit 18 in its recording mode. <IMAGE>
Patent GB-2115576-A (GB)
Title: An arrangement for use in positioning an optical image
Inventor: ANDREWS STANLEY WILLIAM
IPC: G02B7/182
Filed: 1983-02-18
Abstract: An arrangement for use in positioning an optical image with respect to an optical axis includes an optical element 1 (e.g. mirror, lens, plane parallel plate) which is tiltable (e.g. about pins 3) to deflect an image on the axis in a first plane which includes the axis and a second optical element (2) which is tiltable (e.g. about pins 4) to deflect the image in a second plane which includes the axis and is at an angle to the first plane. <IMAGE>
Patent GB-2120950-A (GB)
Title: Water distillation apparatus
Inventor: NASSER GAMAL EL DIN
IPC: B01D3/06
Filed: 1983-04-25
Abstract: Process and apparatus for the distillation of fresh water from sea water by a combined film, vertical tube evaporation (VTE) and multiple stage flash (MSF) evaporation in a multiple stage process, in which after passing through a first VTE process stage (Fst1) and prior to entering the following VTE process stage (Fst2), the salt water is distributed to form a seal between the VTE process stages. The fresh water distillate from a VTE process stage undergoes flash evaporation in at least one MSF process stage (14) for each VTE process stage. The fresh water distillate and brine residue in each case pass together through all the following VTE and MSF process stages in such a way that the brine residue can be removed from the final VTE process stage (Fstn) and the fresh water distillate from the final MSF process stage. The steam used for heating the sea water is successively condensed and passed through all the evaporation stages, starting with the first VTE process stage. Inert gases produced during the stagewise evaporation are removed by suction. <IMAGE>
Patent GB-2126357-A (GB)
Title: Load-measuring devices
Inventor: SANSOME DENNIS HUGH
IPC: G01L1/22
Filed: 1983-08-10
Abstract: A ring-shaped load-measuring device distorts under axial load so that it remains substantially circular in plan but takes up a circumferentially- undulating shape, the ring (1) being circular in cross section. Strain gauges (6,7,8,9) on the ring give an indication of the load. The load-transmitting members that transmit the distorting forces to the ring include balls or the like that make substantially point contact with the surfaces that they bear against. The balls may be located within cradles fixed to the casing within which the ring is mounted, so that the balls bear directly upon the ring: the reverse arrangement is possible in which the ball-locating cradles (2,3) are located on the ring and the exposed faces of the balls (5) bear against the casing. <IMAGE>
Patent GB-2126236-A (GB)
Title: Production of antibodies
Inventor: LINGGOOD MARGARET ANNELI
IPC: A23C9/20
Filed: 1983-09-01
Abstract: Antibodies are produced by hyperimmunising a mammal, such as a cow, with a vaccine derived from E. coli bacteria. The bacterial strains in the vaccine are selected on the basis of their virulence characteristics, especially adhesion factors (pili), associated with gastroenteric disease in humans. The antibodies can be recovered from the mammal's milk or serum, and used in human foods.
Patent GB-2128125-A (GB)
Title: Cutting device
Inventor: QUICK NICHOLAS JOHN
IPC: B26B13/28
Filed: 1983-09-13
Abstract: A cutting device comprising two elongate members (2, 4, Fig 1) each comprising a blade (10, 14) at one end and a handle (8, 12, Fig 1) at the other end, a pin (6) on which the members are pivoted so that the blades work with a scissor action for cutting purposes, the members being retained on the pin between an abutment part (18) at one end portion of the pin and a slotted clip (20) slidable in a groove (22) at the other end portion of the pin, the clip comprising a projection (32) which engages in a complementary recess (36) in one of the members so as to hold the clip in place on the pin. <IMAGE>
Patent GB-2130719-A (GB)
Title: Fibre-optic thermometer
Inventor: BRENCI MASSIMO
IPC: G01K11/12
Filed: 1983-11-02
Abstract: A fibre-optic thermometer comprises a light source (1), an optical fibre (5) coupled with the light source and having a core covered by a cladding, and a temperature sensor (6). The temperature sensor (6) consists of a portion of the optical fibre (5), where the cladding is replaced by a covering having a refractive index (nl) not less than that of the cladding (nm) over a given temperature measurement range and variable as a function of temperature. The end of the fibre remote from the light source (1) is provided with a reflecting surface. <IMAGE>
Patent GB-2142264-A (GB)
Title: Friction compensation in a rolling mill having automatic gauge control
Inventor: FAPIANO DONALD JOHN
IPC: B21B31/20
Filed: 1984-05-02
Abstract: A rolling mill stand which includes roller elements (20, 24) for reducing the thickness of a workpiece (60) which is passed therebetween further includes means (48) for adjusting the gap between the roller elements and means for sensing the roll separation force caused by passing the workpiece between the roll elements. The stand also includes means for sensing the roller elements' position and an automatic gauge (thickness) control means for controlling the means for adjusting) the gap as a function of the roll separation force. A method is disclosed which compensates for friction forces within the rolling mill stand occuring as a result of movement of the roller elements so as to improve the accuracy and stability of the automatic gauge control. <IMAGE>
Patent GB-2158663-A (GB)
Title: Pulse width modulated inverter
Inventor: HUCKER DAVID J
IPC: H02M7/538
Filed: 1984-09-17
Abstract: The inverter has an improved output filter (12) including a low pass filter (38, 39) for providing a sine wave output in response to a pulse width modulated waveform and a notch filter (40) coupled to the low pass filter and tuned to the frequency of the pulse width modulated waveform to eliminate that frequency from the sine wave output. The inverter also includes a series resonant circuit (54) coupled across the DC power supply (20) of the inverter and tuned to two times the frequency of the sine wave output to provide a low impedance path for AC current flowing to the power supply.