baber/WOPTO huggingface dataset:
Patent GB-2014283-A (GB)
Title: Improvements in and relating to Armoured Vehicles
IPC: F41H7/03
Filed: 1979-02-06
Abstract: The present invention relates to improvements in the cupola of an armoured vehicle, particularly a close defence cupola of a light armoured vehicle also used for carrying personnel. The cupola 1 comprises a leaktight partition which is at least in part made of a flexible impermeable material 15 dividing the cupola into a zone 20 containing the rear part of the weapon 6 which is mounted on the cupola, and a zone 21 occupied by the gunner 9. The material 15 of the partition is generally planar with a pocket 24 projecting towards the gunners zone in which the rear end portion 23 of the weapon 6 moves, and has an openable part 27 connected to the remainder of the partition by a leaktight zip fastener 28. <IMAGE>
Patent GB-2047433-A (GB)
Title: Control system for oscillatory hydraulic motor
IPC: F15B11/072
Filed: 1979-04-12
Abstract: A control system for a hydraulic ram 1 employs a piloted non-return valve 18 in one of the hydraulic conduits to the ram to normally resist flow of hydraulic oil in that conduit line away from the corresponding side of the working piston of the ram, but piloted by a pilot pressure 24 from the conduit 9 to the opposite side of the ram piston to allow flow in the "blocked" direction in response to attainment of a given value for the pressure in the said other conduit. A pressure relief valve 19 is provided to by-pass the piloted non-return valve in the "blocked" direction in the event of a pressure surge. Hydro-pneumatic interfaces are provided in the supply lines so that air pressures can be used to control movement of hydraulic fluid into and out of the ram cylinder to allow both precise positioning of the ram piston and resistance to displacement of the piston by the action of the piloted non-return means when the pilot pressure is missing. A non-illustrated alternative envisages cross-piloted non-return valves in the two hydraulic conduits, possibly with respective pressure relief valves in the two conduits. <IMAGE>
Patent GB-2019336-A (GB)
Title: Visual display apparatus for flight simulators
IPC: G09B9/30
Filed: 1979-04-12
Abstract: Visual display apparatus for ground-based craft flight simulation apparatus uses a raster scan display for viewing by the trainee pilot and provides an image comprising a target or other craft, together with cloud extending to the simulated horizon. The cloud image part has repetitively patterned features and is displayed in correct perspective, according to the simulated flight position relatively thereto, for providing speed and altitude cues. This part of the image is provided by digital means, a single cycle of the repetitive pattern being held in a digital store and perspective being computed continuously. The whole apparatus includes three generators 8 - 10 providing respectively sky, horizon and patterned cloud surface all controlled by a general purpose computer 6 receiving flight data from the simulator flight computer. Outputs from the three generators 8 - 10 are selected appropriately during the raster scan of the display and also appropriately combined with a high- definition image of the target or other craft. <IMAGE>
Patent GB-2025894-A (GB)
Title: Mushroom spawn bag
IPC: A01G1/04
Filed: 1979-06-12
Abstract: A sterilizable bag for use in the production of mushroom spawn is made of plastics sheet material and has, located between two perforated areas (2,3) of the plastics sheet material, a panel (7) of microporous sheet material having pores of size less than 0.5  mu m. This panel (7) is edge-welded (8) to the two perforated areas (2,3) and acts as a bacterial filter. <IMAGE>
Patent GB-2025818-A (GB)
Title: Method of Producing Rings from Aluminium-based Alloys
IPC: C22F1/04
Filed: 1979-07-16
Abstract: A method of producing aluminium alloy rings comprises hot ring rolling, solution heat treatment, quenching, cold rolling ageing and final machining. The rings are stress relieved by the cold rolling (after quenching). The diameter of a blank is 1-3% undersize after the initial hot rolling. Rough machining may be effected before ageing.
Patent GB-2027831-A (GB)
Title: Antiskid brake control for aircraft
IPC: B60T8/72
Filed: 1979-08-06
Abstract: An antiskid brake control for aircraft has deceleration detectors connected to wheel speed transducers for presenting output signals when the deceleration rate of a wheel exceeds a threshold level deceleration detector is passed to a valve driver for releasing brake pressure and also to a modulator which causes its voltage level to increase and further reduce brake pressure. The modulator acts as a memory circuit to keep the average brake pressure near the skid level and also provides for a controlled reapplication of brake pressure following the release. A constant current discharge circuit is connected to the modulator to provide a linear discharge of the modulator capacitor. A fast recovery circuit between the deceleration detector and modulator rapidly discharges the modulator capacitor when no outputs from the detector are sensed for a predetermined time. The control system has three distinct system gains: low when the deceleration detector indicates only incipient skids; higher when the deceleration detector indicates deep or severe skids; and lower when the modulator indicates a runway having a low mu. Touchdown protection circuitry holds brake pressure off for a fixed time following touchdown, unless the wheels have spun-up past a predetermined speed and controls reapplication of the antiskid system following a bounce of the braked wheels. <IMAGE>
Patent GB-2029864-A (GB)
Title: Balancing arrangement
IPC: D06F37/24
Filed: 1979-08-16
Abstract: A balancing arrangement for a rotating body, e.g. a drum of a combined clothes washing and spin-drying machine or of a spin- dryer, comprises at least one ring- shaped hollow vessel (15) secured to the body (3) concentrically with the body axis and partially filled with liquid (24), the interior of the vessel being divided into a series of compartments by a plurality of dividing means (21) which restrict the flow of liquid around the vessel at least over a selected range of speeds. The vessel may be formed as an integral unit, for example by a rotational moulding process, and the dividing means may be provided by baffles (21), Figs. 2 and 4-7 (not shown), of appropriate shape disposed around the vessel so as to form the compartments between them. However in some cases the dividing means and compartments may be provided by open-cell foamed plastics material (52), Fig. 16 (not shown), preferably extending over an outer part of the vessel cross-section. <IMAGE>
Patent GB-2056281-A (GB)
Title: Artificial leg with stabilised knee mechanism
IPC: A61F2/64
Filed: 1979-08-17
Abstract: An artificial leg for an above-knee amputation includes a device for resisting knee flexion (brake band 11 and drum 12) and a main portion 1 and movable lower portion 2 of the artificial leg's thigh component. Portions 1 and 2 are connected by a 4-bar linkage comprising two pairs of links 3 and 4. Link 3 is formed as a lever 3, 3A, the end 10 of which is connected to band 11. When torque is applied about the hip axis, motion is produced in the 4-bar linkage, which causes band 11 to tighten in response to a hip torque tending to move the thigh rearwards (e.g. when walking) and to slacken when this torque is not applied. <IMAGE>
Patent GB-2061827-A (GB)
Title: Indexed book
IPC: B42F21/12
Filed: 1979-10-26
Abstract: An indexed book (1) such as a dictionary, is divided up into different alphabetical sections, the pages of each section having cut-outs (11) for viewing the initial letter of all the words in that section and elongate slots (12) above which are printed the second and third letters of the words printed on that page. The height of the slots is arranged so that the second and third letters printed on an underlying page appear just below the upper edge of the slot in the previous page. <IMAGE>
Patent GB-2034378-A (GB)
Title: Sea bed structure
IPC: B63B21/26
Filed: 1979-11-07
Abstract: A structure (40) for installation on the sea bed and suitable for piling to provide an anchor comprises an inner portion (42) having a plurality of relatively small diameter apertures (44, 46, 48, 50 and 52) for piles therein and a plurality of connectors (53, 54, 55, 56) for the tethers of a tethered buoyant platform. The structure (40) also has one or more outer portions (80, 82, 84, 86) disposed outwardly with respect to the inner portion (40) having apertures (94, 96, 98, 100) for plies of relatively large diameter. The inner portion (42) is stiff in a vertical direction and the connecting members (60, 62, 64, 66, 68, 70) connecting the inner and outer portions are stiff in a horizontal direction, so that in use vertical loads are distributed to the relatively small diameter piles and horizontal loads to the relatively large diameter piles. <IMAGE>
Patent GB-2044116-A (GB)
Title: Solution-concentrating apparatus
IPC: B01D1/22
Filed: 1980-01-29
Abstract: An apparatus for concentrating a liquid solution comprises a plurality of spaced-apart plates (22) arranged for rotation about a substantially horizontal axis; means for supplying solution to the surfaces of said plates, said surfaces being arranged to be exposed to heat and/or flowing gas for vapourizing a readily vapourizable constituent from the solution passed to the surfaces of said plates; and means (14, Figure 1) for collecting concentrated products. The plates (22) are provided with an outer layer (24) of open-pore porous material having the ability to absorb solution (28); and the radially inner regions of said outer layers extend into a storage space (20, 26, 27) for solution to be concentrated, said storage space being shielded from the outer-layer parts exposed to said heat and/or said gas by means of shielding means (25). In this way, the outer surfaces of said plates absorb solution from the storage space, rotation of said plates contributing to uniform dispersion of the solution over the surfaces of said plate layers exposed to said heat and/or said flowing gas. <IMAGE>
Patent GB-2044411-A (GB)
Title: Pump with pressure relief valve
IPC: F16N7/38
Filed: 1980-03-13
Abstract: The pump includes a motor shaft (5) driving a pump shaft (2), in which is formed an internal passage (3) for supplying lubricating fluid, the passage having a closure device (10) which is adapted to be held closed by centrifugal force acting on a bell-crank (9) while the shafts are rotating, so as to form a pre-loaded pressure-relief valve. <IMAGE>
Patent GB-2045577-A (GB)
Title: Improvements in the processing of N.T.S.C. colour television signals
IPC: H04N9/78
Filed: 1980-03-31
Abstract: Digital sampling of the luminance component of an N.T.S.C. colour television signal is achieved by sampling with a mean frequency of twice the colour subcarrier frequency to produce a sub-Nyquist sampled luminance signal. The sampling phase is changed between each pair of lines by an amount equal to half the interval between samples to prevent coincidence of the frequency spectra of the true & alias signals. The digital sampling can be applied to separate luminance and chrominance signals, to encoded N.T.S.C., and to the conversion of N.T.S.C. signals into signals of other form including PAL. Further, phase-perturbed sampling techniques permit the construction of an advantageous N.T.S.C. coder and de-coder system. The coder operates to cause spectrum folding of a luminance input signal by multiplying by a phase perturbed signal of twice the colour subcarrier, and adding, the resultant being comb filtered to select frequencies which are multiples of the line frequency. The chrominance signal I, Q are combined into I+/-Q and are modulated onto phase-perturbed subcarrier, the resultant being comb filtered to select frequencies which are of integral multiples of half the line frequencies. The two signals are then added. The comb filters mentioned can be based on one line delays or on odd multiples of one line, particularly 263 or 525 lines. A converse decoder filters then spectrum folds the luminance component, and filters and multiplies by subcarrier to derive the chrominance. Once an N.T.S.C. signal has been encoded by use of the encoder, subsequent decoding and recoding produces theoretical impairment into the signal.
Patent GB-2079476-A (GB)
Title: Force balance
IPC: G01L1/08
Filed: 1980-07-01
Abstract: A device for measuring a force, e.g. the tracking weight of a stylus in a record player balances the force against the moment of the weight of a disk rotatable about an axis that does not pass through its centre of gravity. In one embodiment, a rocker member 32 is pivotably mounted on a base 31. A circular balance plate 33 is rotatably mounted off-centre on the rocker member 32 so that rotation of the plate 33 varies the moment of its weight about the balance axis. The stylus of the record player is applied in use to a hole 41 in the rocker member and the plate 33 rotated until balance is achieved, the plate 33 being marked with graduations 46 appropriately calibrated so that the tracking weight may be read in conjunction with a line 47 marked on the rocker member 32. <IMAGE>
Patent GB-2054146-A (GB)
Title: Ultrasonic Testing
IPC: G01N29/11
Filed: 1980-07-04
Abstract: A method of ultrasonic testing includes the steps of applying a pulse input in a first mode (compression, shear or surface) to a test piece using a first transducer, sensing the response to the input using a second transducer in a second mode on the test piece, and spectrum analysing the response. Presence of a predominant frequency indicates a fault, and the frequency is in many cases a function of the length of the fault. Using a third transducer to sense the response to the input, a relationship between the amplitudes of responses from the second and third transducers can be a function of the depth of the fault.
Patent GB-2060277-A (GB)
Title: Sealing cables and conduits
IPC: H02G15/04
Filed: 1980-08-27
Abstract: A flameproof cable or conduit seal includes a main gland member 11 and a tubular inner member 14. These have mating annular surfaces 24 and 25 shaped to form a tortuous path between them when assembled; this forms the whole or part of a flameproof path between the members. When the main gland member is screwed to a gland barrel (6) the annular surface of the inner member is forced towards the annular surface of the main gland member. <IMAGE>
Patent GB-2073742-A (GB)
Title: 4-Amino-3,5-dicyano-pyridine Compounds
IPC: C07D213/85
Filed: 1981-03-09
Abstract: Novel 4-amino-3,5-dicyano-6- methylpyridine and its 2-alky and 2- aryl derivatives are prepared by interacting diacetonitrile with malononitrile and an orthoester.
Patent GB-2077507-A (GB)
Title: An ignition voltage distributor
IPC: F02P7/02
Filed: 1981-05-01
Abstract: An ignition voltage distributor has a movable ignition electrode 2 which distributes a high-voltage to a stationary electrode 8 in the distributor cap for producing an ignition spark in a cylinder of an internal combustion engine and a secondary movable electrode 6 for simultaneously distributing another voltage to a subsidiary stationary electrode 9 which is connected by an inbuilt conductor to another ignition electrode in the distributor cap which is connected to another cylinder of the engine which is at the intake stage of the operating cycle. This produces a secondary spark in the intake cylinder which improves performance by its effect on the intake gases. The secondary spark is varied in its strength by centrifugally controlled change in a circuit gap 3-6 and by a temperature compensating bimetallic element 5, and is varied in its timing by a centrifugally operated advance- retard. <IMAGE>
Patent GB-2078549-A (GB)
Title: Repairing the Refractories of Metallurgical Vessels
IPC: F27D1/16
Filed: 1981-06-01
Abstract: The refractory lining of the nose of a steel converter is repaired by spraying refractory material at a worn region of the lining by means of a burner having three coaxial tubes 1- 3. A coolant flows in a conduit defined between the two outer tubes 1,2 and closed at the burner outlet end. Oxidising gas (e.g. O2) is passed through the innermost tube 3. A combustible fluid (e.g. fuel gas) carrying particulate refractory material (e.g. 3 to 6 kg/Nm<3>) passes through the space between the two inner tubes 2,3 (e.g at a speed of 5 to 40 m/s). <IMAGE>
Patent GB-2081485-A (GB)
Title: Luminous indicator device
IPC: E01F9/615
Filed: 1981-06-24
Abstract: A luminous indicator device has a casing 3 which has an opening closed by a translucent or transparent indicator plate 3a with at least a part 3b on the inside surface of the casing facing the plate 3a and covered with retro-reflecting material 3c. A low-power light source 6 is provided in the casing 3 disposed in front of the surface 3b covered with the retro-reflecting covering 3c and connected to an electrical power accumulator such as a battery 5 which is also connected to an energy pickup-converter such as a solar energy pickup-converter 4 or a wind energy pick-up converter. The invention is intended primarily for use in indicator devices on the highway or roads to provide a device which is visible even when there is no external lighting. The luminous indicator devices may be sign boxes, public shelters or traffic lane studs. <IMAGE>
Patent GB-2079580-A (GB)
Title: Method and apparatus for tensioning a filter rod
IPC: A24D3/02
Filed: 1981-06-26
Abstract: The pull upon the running tow of filamentary filter material in a filter rod making machine is maintained at a constant value by monitoring the velocity of the stretched tow and/or a parameter which varies as a function of changes of velocity of the stretched tow, by applying to the tow a retarding force upstream of the location of pull, and by varying the retarding force in response to variations of velocity of the stretched tow so as to maintain the pull at or close to an optimum value. This ensures that the density and draw resistance of the fillers or filter plugs which are obtained from the stretched tow remain unchanged. The retarding force can be applied by one or more idler rolls, by a set of jaws, by one or more driven rolls or by one or more brake shoes. <IMAGE>
Patent GB-2107978-A (GB)
Title: Improvements relating to bed headboards
Inventor: FLIGELSTONE YOLANDE SARAH
IPC: A47C19/02
Filed: 1981-10-21
Abstract: A bed headboard comprises a substantially rigid board member 1 with mounting struts 2 for affixing the board member to a bed provided with a padded front 4. A removable fabric cover 5 is wrapped around the headboard and has fixing studs 10 which secure the cover removably to complementary studs 11 on the board member. Soiled covers may readily be removed for washing. A frame member may be removably secured to the front of the headboard over the removable cover, to provide added decorative effect. <IMAGE>
Patent GB-2086656-A (GB)
Title: Liquid-filled circuit-breaker
IPC: H01H33/22
Filed: 1981-10-23
Abstract: An electric circuit interrupter of the kind comprising a pair of contacts immersed in an arc-extinguishing, dielectric liquid, at least one of the contacts being movable between a closed position in which it engages the other contact and an open position in which the contacts are spaced apart, is provided with a layer of involatile liquid on the surface of the dielectric liquid. The involatile liquid is substantially immiscible with the dielectric liquid and preferably has a density of not more than 90% of the density of the dielectric liquid.
Patent GB-2090260-A (GB)
Title: Polymer Compositions for Use in Preparing Impact Resistant Articles
IPC: C08L27/00
Filed: 1979-02-27
Abstract: Compositions suitable for moulding impact resistant articles comprises (1) a vinyl or vinylidene halide polymer, (2) a minor proportion of a block thermoplastic elastomer wherein the major proportion of the monomer units are residues of a mono-alkenyl-substituted arene compound of the benzene or naphthalene series of 8 to 20 carbon atoms and a conjugated alkadiene hydrocarbon of 4 to 10 carbon atoms, and (3) an MBS or ABS polymeric impact modifier.
Patent GB-2091167-A (GB)
Title: Process for cation permeable membrane with reinforcement fabric embedded therein and product thereof
IPC: B32B27/28
Filed: 1982-01-14
Abstract: A cation permeable membrane containing areas of thin wall construction comprises a cation exchange polymer matrix having a reinforcement fabric embedded therein. A two-step lamination procedure is described where holes are formed in a film of laminated polymer prior to a second lamination step. The cation permeable membrane has utility in membrane ion exchange, reverse osmosis devices or in electrolytic cells such as chlor-alkali cells.
Patent GB-2094423-A (GB)
Title: Safety system of automotive automatic transmission operating device
IPC: B60K28/00
Filed: 1982-02-03
Abstract: A safety system for a motor vehicle having an automatic transmission, a shift lever movable into select positions for allowing the transmission to assume the corresponding gear conditions thereof, stepped operation surfaces, and a stop pin movable with the shift lever and slidably engageable with the stepped operation surfaces for retaining the shift lever at one of the select positions. A position detector switch is provided which connects the starter motor of the vehicle with an electric power source. The position detector switch includes at least one stationary contact member mounted to one of the stepped operation surfaces, and a single movable contact member mounted to the stop pin at the portion engageable with the stepped operation surfaces.
Patent GB-2115763-A (GB)
Title: Storage means for packages
Inventor: VASSEUR ROGER
IPC: B65G47/51
Filed: 1982-02-25
Abstract: The storage means of the invention is connected to a transfer conveyor between two wrapping machines and comprises the combination of:   a) an apparatus for the lateral displacement of the packages relative to mobile racks, following a movement thereof which is made up of an ascending movement, until the bars (29), (30) are higher than the bars (21), (22) of the other rack, a movement of longitudinal translation in one direction, a descending movement until the bars (29), (30) are lower than the bars (21), (22) of the other rack, and a movement of longitudinal translation in the other direction,   b) at the side of the conveyor, a smooth platen (71), and   c) means for detecting the presence of packages.   <IMAGE>
Patent GB-2097544-A (GB)
Title: Weighing apparatus
IPC: G01G11/00
Filed: 1982-04-23
Abstract: A weighing apparatus includes a weigh table 26 supported on a weigh cell 51. The table is arranged to be easily removed for washing or cleaning and comprises a belt-type conveyor driven via a shaft 42 which is detachably coupled to drive means 44, 46, 47. In use the table is secured by wing nuts 57. <IMAGE>
Patent GB-2100384-A (GB)
Title: Rotary transmission
IPC: B60W10/10
Filed: 1982-05-25
Abstract: A motor vehicle engine (11), drive clutch (12) and manual change transmission (13) combination has automatic change speed means including a controller (20) and means (16, 19) responsive to the controller to both change the state of engagement of the drive clutch (12) and select a required transmission speed ratio, an engine brake (17, 18) responsive also to the controller (20) is provided to brake the engine during a speed ratio change to substantially synchronise engine speed with transmission input shaft speed. <IMAGE>