baber/WOPTO huggingface dataset:
Patent GB-2024422-A (GB)
Title: Temperature-responsive actuating-element
IPC: G01K5/48
Filed: 1979-05-30
Abstract: A trip mechanism, which can be used to actuate a control device, consists of a spring member 13 which is normally held in a stressed position by a latch member 12 made of a shape memory effect alloy. As the temperature of the latch member increases through the transition temperature range of the alloy, the latch member releases the spring member which then moves toward its unstressed position 13' and actuates the control device. <IMAGE>
Patent GB-2022267-A (GB)
Title: Rotary displacement capacitive transducer
IPC: G01D5/241
Filed: 1979-05-30
Abstract: A rotary displacement capacitive transducer comprises first and second cylindrical electrodes (1,2) each electrode having inner and outer conducting members (1a, 1b, 2a, 2b) connected together by insulative adhesive (7), and a cylindrical member (3) disposed between the electrodes which in use is rotated to vary the capacitance between the electrodes. The surfaces (1a, 2a) define the capacitance of the transducer. The cylindrical member (3) may be an earthed conductor which by interposition progressively reduces the capacitance between the electrodes, or a dielectric member which progressively increases the capacitance. <IMAGE>
Patent GB-2024609-A (GB)
Title: A holder for an egg
IPC: A47G19/28
Filed: 1979-06-22
Abstract: A holder for an egg, particularly a boiled egg, comprises a cup-like lower member (1), Figure 1, in which an egg can be placed and supported by a support (1') with one end uppermost, and a cup-like upper member (2), Figure 2, which can be placed over the lower member (1) with its end wall (2') uppermost, the end wall (2') having an opening (3) through which the upper end of the egg placed in the lower member (1) extends. <IMAGE>
Patent GB-2028576-A (GB)
Title: Electron guns and resistors for cathode ray tubes
IPC: H01J29/50
Filed: 1979-07-16
Abstract: An electron gun 1 in a c.r.t. (eg colour picture tube) has focusing and accelerating electrodes G1 to G5, and divider resistance element 15 comprising a ceramic substrate coated with layer 17 of resistive material, one end being electrically connected to the anode potential, and the other to a pin 4 at a low enough potential to avoid electric discharge between that pin and other stem lead pins. Potential for the electrodes is derived from intermediate taps a, b of the resistor. The resistive material is composed of a mixture of RuO2 and glass frit and is overcoated with a glass layer (32) (Fig 7A not shown), the coefficients of thermal expansion of substrate and glass layer being similar. The frit glass may be borosilicate, and the oxide may include Ti or Al2O3 additions and specified organic binder and solvent. Component concentrations and resistor dimensions are exemplified. Electrodes (30a-d) (Fig 5A, not shown) are also preferably RuO2/glass. Overcoating glass layer or layers (32) (Fig 7B not shown) may be Al2O3/borosilicate Pb glass in specified ratios. Characteristics are discussed wrt Figs 8,9 (not shown). The arrangement requires only one anode button in the c.r.t. and counters vapourization and sputtering during the knocking process to remove burrs. Guard patterns (31a-f) (Fig 5A) further counter arc formation on the electrodes and prohibit sputtering. <IMAGE>
Patent GB-2037388-A (GB)
Title: A Coupling Head for Compressed Air Braking Systems
IPC: B60T17/04
Filed: 1979-12-05
Abstract: A coupling head (1) for compressed air brake systems of tractor vehicle and trailer combinations has a compressed air valve (7/10) comprising a hollow actuating member (8) which has a closure member (7) at one end and at its other end a piston (6). The effective surface of the piston (6) is larger than that of the closure member (7), so that, under the action of compressed air in the uncoupled state, the actuating member (8) is biassed to maintain the closure member (7) on a valve seat (10). However, the valve (7/10) is opened mechanically during the coupling operation to allow compressed air to flow through chamber 12 and passage 15 to the counter-coupling (22, Fig. 2 not shown). The valve (7/10) comprises a resilient sealing ring (10'), a rigid support member (13) and an anti- vibration spring 14. When assembling the valve (7/10), the sealing ring (10') is stretched, over the flange of member 8. The support member (13) is of multi-part construction to facilitate assembly. The chamber 12 may also be connected to a passage (25, Fig. 3 not shown) leading to a two-circuit, two-line trailer control valve (27). <IMAGE>
Patent GB-2048030-A (GB)
Title: A device for holding X-ray- sensitive films for odontological radiography
IPC: G03B42/02
Filed: 1980-03-07
Abstract: An X-ray film holder (1) is connected to a bite wing (3) whereby the film holder can be held by the teeth of a patient. The film holder includes means whereby the film can be held in any one of a plurality of distinct positions relative to the bite wing. A guide arm (5) is connected to the bite wing (3) by a transverse arm (4) and a further transverse arm (6) is connected to the guide arm (5) and extends in a direction parallel to the plane of a film held in use by the holder. An elongate aiming member (8) is provided at the free end of the transverse arm (6) and extends perpendicularly to both the guide arm (5) and the transverse arm (6). The aiming member is provided with means such as markings (10) and aiming guides (11) for aligning the axis of a cone or a tube of an X-ray source with the in use point of intersection of the horizontal and vertical central lines of the film held in the holder. <IMAGE>
Patent GB-2071755-A (GB)
Title: Mounting Arrangements for Hinged Doors and Windows
IPC: G08B13/08
Filed: 1980-03-12
Abstract: A mounting arrangement for a hinged door or window comprising, on at least one side of the frame surrounding the door or window, a fixed post (1A) and a movable post (2A) resiliently mounted in tension against the fixed post. The movable post (2A) is able to move a limited distance away from the fixed post (1A) against the resilient tension and a door leaf or window (19) is able to be connected with the movable post either on the lock or latch side (21) of the door or window or on the hinge side (20) of the door or window or on both sides thereof. If the door leaf or window is urged in a opening direction whilst it is kept shut, i.e. by being prised or kicked, the movable post (2A) will move against the resilient tension so that it acts as a shock absorber. The arrangement can be used in conjunction with any warning device such as a burglar alarm. <IMAGE>
Patent GB-2045305-A (GB)
Title: Reinforced Non-woven Webs
IPC: D21H27/00
Filed: 1980-03-19
Abstract: The present invention provides a method and apparatus in which a plurality of fibers are dispersed in a water solution to form a fibrous slurry. A moving permeable screen 4, disposed in a hydroformer 1 having an inlet 3 for the fibrous slurry, is divided into a plurality of fiber collecting zones by a roller 7 defining an arcuate path. At least one reinforcement element or medium 13a, 13b is conducted by the roller to a position upon an initial fibrous layer collected on a first zone 5. The roller engages the moving screen and ensures that the reinforcement element or medium is properly positioned and disposed at the desired height within the web. A covering layer of fiber is deposited upon the initial layer and on the reinforcement element by injecting a fibrous slurry through separators 10. <IMAGE>
Patent GB-2057496-A (GB)
Title: Exothermic, Heat-insulating Compositions and Articles
IPC: B22D7/10
Filed: 1980-04-10
Abstract: Anti-piping compositions are provided containing aluminum and paper jointly derived from aluminum/paper laminate. Also provided are slurry-formed, refractory, exothermic, heat-insulating articles comprising particulate and/or fibrous refractory material, a binder and aluminium and paper jointly derived from aluminium/paper laminate.
Patent GB-2052755-A (GB)
Title: Gas detecting and measuring apparatus
IPC: G01N27/416
Filed: 1980-05-13
Abstract: A gas detecting device e.g. for detecting CO2 in air, has a vessel containing water (12) and a layer of ion-exchange resin (25) wetted by the water and partially sandwiched between air and water-permeable electrode (14, 15) gauze discs. Any CO2 in the ambient atmosphere dissolves in the water and the dissociated ions lower the resistance between the electrodes (14, 15) which may be connected to a bridge circuit adjusted to be out of balance at a predetermined CO2 concentration or which may be of dissimilar metal to form a galvanic cell with a measurable output current at a predetermined CO2 concentration. <IMAGE>
Patent GB-2082846-A (GB)
Title: Adaptor for I.C.E. ignition systems
IPC: H02K1/27
Filed: 1980-06-05
Abstract: An ignition device for an internal combustion engine is modified by fitting to a cam (12) on a shaft (10) an adaptor comprising inner and outer elements (13, 14). The inner element (13) is lifted onto the cam and is then contracted by application of the outer element (14) to provide a tight fit on the cam. For this purpose, ribs (21) on the interior of the outer element (14) engage in recesses (22) of the inner element (13) and press inwards. The inner element is formed of plastics and has double-leaf walls (19, 20). The outer element (14) is of metal and has an outer layer of magnetised ferrite particles in a plastics matrix. A pick-up of the system is not illustrated. <IMAGE>
Patent GB-2054955-A (GB)
Title: Monolithic integrated CMOS circuit
IPC: H01L27/092
Filed: 1980-06-19
Abstract: In an integrated CMOS circuit including an adjacently disposed complementary pair of transistors, wherein one transistor is formed in an island of p-type semiconductor material in an n-type substrate suppression of the four layer thyristor effect appearing over the n-channel- source/p-island/n-substrate/p-channel source line of a CMOS inverter stage, which may cause destruction of the CMOS circuit, is prevented by the provision of a Schottky barrier contact (3) attached to the p-island (2) and connected to the transistor drain zones (5, 6). This contact has a lower threshold voltage than the pn-junction (7) between the p-island and the n drain zone (5). A further Schottky barrier contact (4) may be attached to the substrate (1) and connected to the transistor drain zones (5, 6). <IMAGE>
Patent GB-2061071-A (GB)
Title: Speech analyzer
IPC: G10L25/90
Filed: 1980-09-26
Abstract: A speech analyzer for extracting spectrum information and pitch information from natural speech wherein an accuracy of pitch extraction is enhanced by sampling pitch at a sampling frequency which is higher than a sampling frequency for analyzing the spectrum information.
Patent GB-2062243-A (GB)
Title: Electric manual control apparatus
IPC: G01D5/04
Filed: 1980-10-16
Abstract: An electric control apparatus for fluid-flow valves comprises a control lever 3 with a head 6 attached to one end of it, which is pivotable about an axis 5 transverse to the lever axis and which is displaceable through limited angles in opposite directions from a neutral position against returning forces provided by leaf springs 8 and 9. A device 21 provides a magnetic field and produces an electric signal in response to changes in that field, the device comprising a part which is fixed to the lever and is axially spaced from the head and another part 20 which is movable in dependence on movement of the head, relative movement between the parts changing the magnetic field. A leaf spring 14 has one end 13 operatively connected to the head, and its other end is secured near the fixed part and has a blade carrying the movable part 20. <IMAGE>
Patent GB-2065012-A (GB)
Title: Lathe attachment for non-circular turning
IPC: B23Q27/00
Filed: 1980-12-04
Abstract: A lathe attachment, for non- circular turning of workpieces, comprises a mounting 11 for a rotatable shaft 13 carrying a tool holder 15, there being mounted on the tool holder at least one tool 16 extending transversely of the axis of rotation of the tool holder and having a part which projects outwardly from a portion of the periphery of the tool holder. A transmission 17, 18, 20, 21 imparts rotation to the rotatable shaft 13, and for providing a correlation between the speed of rotation of the tool and the speed of workpiece rotation. The tool operates only intermittently on the workpiece and thereby produces a non-circular section, e.g. single or double flats, or triangular, square cross-section. The transmission is by gears, a layshaft, jointed shaft, electrical or fluid transmission, or separate electronic means. <IMAGE>
Patent GB-2087899-A (GB)
Title: Printing ink compositions
IPC: C09D11/02
Filed: 1980-12-15
Abstract: The inks comprise an organic ink vehicle having dispersed therein an ink coloring material and an organophilic clay gellant comprising the reaction product of (a) a smectite- type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay and (b) a methyl trialkyl and/or benzyl trialkyl quaternary ammonium or phosphonium compound, said alkyl groups containing 12 to 22 carbon atoms and the amount of said quaternary compound reacted with said clay being from 100 to 130 milliequivalents per 100 grams of clay based upon 100% active clay. The term "alkyl" is used to include both saturated and unsaturated aliphatic hydrocarbon groups.
Patent GB-2068284-A (GB)
Title: A pneumatic screwing tool provided with a device holding a screw by air suction
IPC: B25B23/08
Filed: 1980-12-31
Abstract: A pneumatic screwing tool holds a screw through suction air in a passage (16) generated by means of an ejector effect. Exhaust air from the screw motor is separated from the low pressure passage (16) on the suction side. An ejector nozzle is opened by a manual valve (34) so that suppply air (8) passes through a mixed air passage (21) and the nozzle to provide the suction. Upon exhaust air pressure build-up, an optimal non-return valve may block-off the passage (16) from the nozzle. <IMAGE>
Patent GB-808075-A (GB)
Abstract: 808,075. Automatic control systems for gyroscopes. BENDIX AVIATION CORPORATION. May 9, 1955 [May 17, 1954], No. 13378/55. Class 38 (4). In a system for automatically erecting a gyro, a gravity responsive device causes a precession torque to be applied to the gyro at all times in one sense or the other, and retarding means increase the period of application of the torque in each sense beyond the period during which the gravity responsive device is calling for torque to be applied in that sense. In a system for erecting an aircraft directional gyro, Fig. 1, a two-phase torque motor 22 runs under the influence of field windings 35, 36 to precess the gyro spin axis 12 towards the horizontal, at which position a contact 18 carried by a pendulum 17 engages an insulating segment 20 so that a condenser 47, Fig. 2, charges through a resistor 48 from a D.C. source including a rectifier 31. When, after a time delay, the voltage across condenser 47 reaches a value sufficient to render gas discharge valves 42 conductive an opposing field winding 41 is energized to reverse motor 22 so that the gyro is processed in the opposite sense to cause contact 18 to engage a segment 21, Condenser 47 then discharges through resistor 48 so that, after a further time delay, valves 42 are rendered non-conductive again. The gyro spin axis thus oscillates about the horizontal and the capacity-resistance network 47, 48 is chosen so that the period of oscillation is five or six times the natural roll period of the aicraft to reduce errors due to acceleration effects on the pendulum. The arrangement also reduces errors due to friction in bearings of the gyro.
Patent GB-2094205-A (GB)
Title: Thread-cutting indexing unit
IPC: B23G3/02
Filed: 1981-03-07
Abstract: The unit, for mounting on a lathe, comprises a first gear pinion 4 for continuous engagement with a leadscrew of a lathe. The first gear pinion 4 is mounted on a first shaft 2, and second and third gears 10, 11 are mounted on a second shaft 3. The second and third gears may be selectably engaged with a fourth gear 4 on the first shaft 2, and are arranged to rotate with an indexing disc 12, which carries two separate scales 18, 19. By moving the indexing disc 12 axially, either one of the second and third gears may be engaged with the fourth gear 14, to provide a selected gear ratio between the leadscrew of the respective lathe, and the indexing disc 12. The scales 18, 19 carry more information, particularly advantageous in the cutting of metric screw-threads. When a mark on one scale is lined up with a datum on the unit, a handle 6 is operated to engage a half nut 5 with the leadscrew for screw-cutting saddle traverse. The indexing unit is detachably mounted on a saddle of a lathe, which may be replaced by another indexing unit for cutting other screw-threads.   <IMAGE>
Patent GB-2073069-A (GB)
Title: Process for the Finishing of Camshafts
IPC: B24B19/12
Filed: 1981-03-16
Abstract: A process for the final finishing of the cams 1 of a camshaft 2 comprises providing pre-finishing 4 and final finishing tools 5 in rows on opposite sides of the camshaft, with the tools of each row in alternation and whereby a cam has a pre-finishing tool to one side and a final finishing tool to the opposite side. Each row is in a holder such that the pre-finishing tools and the final finishing tools are first applied simultaneously to the camshaft and shaped by pressing them against the camshaft and subsequently prefinishing and final finishing operations are carried out. The process substantially eliminates the effects of deflection and coning. <IMAGE>
Patent GB-2096382-A (GB)
Title: Record cleaning device
IPC: G11B3/58
Filed: 1981-04-03
Abstract: A record cleaning device 1 comprises a pair of arms 11 carrying a cleaning brush 12 for cleaning the playing surface of a gramophone record, the filaments of the brush 12 following the grooves in the record so that the brush 12 tracks towards the centre of the record as it rotates. To permit this, the arms 11 are pivotably mounted about a vertical pin 18 on a base 10. The arms 11 are secured at their inner ends to a hoop 15 pivoted about a horizontal axis to allow the brush 12 to be lifted away from the record. A member 25 with a hook portion 26 is provided to support the arms 11 when the device 1 is out of use. <IMAGE>
Patent GB-2078016-A (GB)
Title: Hybrid machines, and vehicles powered thereby
IPC: B60L50/15
Filed: 1981-05-15
Abstract: A transmission system, for a hybrid machine comprising a heat engine as prime mover and a dynamoelectric device, includes a flywheel (15) for storing kinetic energy and electrodynamic couplings (12, 16; 6, 7; 13, 14) selectively operable for transmitting torque from the prime mover via shaft 4 to the flywheel and/or to the output via 9, and/or for transmitting torque between the flywheel and the output. Actuator 8 shifts rotor 5 selectively into positions X, Y or Z; actuator 17 shifts flywheel 15 into positions P or Q. Batteries are connected via slip rings 20. An external control system is disclosed using Hail effect devices 58 and a microprocessor to obtain optimum performance. Various operational modes are described. <IMAGE>
Patent GB-2081310-A (GB)
Title: Washing machine
IPC: D06F101/02
Filed: 1981-06-18
Abstract: A washing machine comprises a program control device, a programme phase "preliminary wash" selectable through programme selection means and electrical heating means (3). Operatively connected with the selection means is a switch (5) which in at least one setting of the selection means interrupts the current circuit, switchable by a cam contact (4) of the control device, for the heating means (3) during the programme phase "preliminary wash". <IMAGE>
Patent GB-2078978-A (GB)
Title: Optical inspection method for determining surface texture
IPC: G01B11/30
Filed: 1981-06-26
Abstract: In a method for determining the machinability of a metal substrate for use in an electromechanical recording apparatus a surface of a foundation is coated with a layer of metal. The metal layer is machined such that the metalized surface of the foundation is substantially flat and smooth. After the machining step, the metal surface is inspected for depressions with a microscope using a differential interference contrast technique. The number of depressions observed is indicative of the machinability of the coated foundation.
Patent GB-2083751-A (GB)
Title: Prosthetic device positioning apparatus
IPC: A61B17/06
Filed: 1981-06-30
Abstract: A heart valve positioning apparatus has a plurality of circumferentially spaced legs 9, to which an artificial heart valve 8 can be releasably held by sutures 3. The legs depend from an internally threaded holder 10 formed for co-action with a rod 14 slidably positioned in a holding disc 12 which carries spring clips 19 about its circumferential edge for releasable coaction with the sutures utilized to secure the valve in place. <IMAGE>
Patent GB-2082733-A (GB)
Title: Dump Actuated By Pass Valve
IPC: F04B49/02
Filed: 1981-07-14
Abstract: In a high pressure fluid jetting system where it is required to control the supply of output flow from a fixed displacement pump to a high pressure jetting nozzle 38, a dump actuated by pass valve 22 is provided, connected into the system at pump outlet 15, with a return line 21 to the header tank feeding the pump and a supply line 29 connected to an existing type of dump control valve 39. A check valve 34 is provided in the line between the dump control valve outlet 30 and the jetting nozzle. In the off- load condition pump output flow is by passed back to the header tank, at a low pressure. A pilot flow is maintained in the line 29 from by pass valve outlet to the dump control valve. Manual operation of the dump control valve results in the actuation of the by pass valve and full pump output flow being directed to the jetting nozzle. Release of the dump control valve trigger causes a reversal back to the off-load condition. <IMAGE>
Patent GB-2104455-A (GB)
Title: Drag reducing devices for caravans
Inventor: CARR GEOFFREY WILLIAM
IPC: B62D35/00
Filed: 1981-07-22
Abstract: With a view to reducing the drag produced by a towed caravan half- rounded strips (12, 14) are secured at sharp forwardly facing edges of the caravan structure. One longitudinal boundary of the half-rounded strip is contiguous with the corresponding sharp edge of the caravan. <IMAGE>
Patent GB-2086020-A (GB)
Title: Improvements relating to grates for shell boilers
IPC: F23L1/02
Filed: 1981-09-15
Abstract: The invention relates to a grate 12 for a shell boiler which comprises grate bars 18, arranged above an open topped grate box 22. The one piece assembly serves to prevent unwanted leakages of air from the grate box. The grate box may be subdivided into sections (24, 26). Furthermore, secondary air pipes 40 can be arranged to pass through the grate box. <IMAGE>
Patent GB-2085169-A (GB)
Title: Testing mechanism for floors
IPC: G01N3/30
Filed: 1981-09-22
Abstract: The mechanism comprises a wheeled chassis carrying a vertically movable rod (6) supported in a position of rest just above floor level by a first spring (9). The rod (6) is projected against the floor by means including a second spring (7) and a rotatable star wheel (5), lifting a projection (12) on the rod (6) and operable to raise the rod against the spring (7) and then release it. The star wheel (5) is connected to the axle (10) by a unidirectional ratchet (20). The rod 6 may in another embodiment be hand operated and a dye marker may be provided. <IMAGE>