baber/WOPTO huggingface dataset:
Patent GB-2007059-A (GB)
Title: Radio direction finder
IPC: G01S3/40
Filed: 1978-08-30
Abstract: The invention relates to an automatic direction finder for marine vessels. The direction finder includes a rotatable aerial and a receiver for receiving a signal from a radio beacon, a circuit for sampling the output signals of the receiver, an analogue to digital converter for converting the sampled signals into digital signals and a processor which statistically analyses the digital signals to derive the bearing of the radio beacon. The processing may be simply an averaging technique or may include fitting a cosine wave to the sampled signal amplitudes. A suitably programmed microprocessor is used.
Patent GB-2011099-A (GB)
Title: Photographic objective with a digital coding arrangement
IPC: G03B7/20
Filed: 1978-11-23
Abstract: An interchangeable lens 1 has one end adapted for insertion into a complementary socket in a camera body which is provided with contact pins connected to an exposure meter circuit arranged within the camera body. The inserted end is provided with a contact bridge 5 which, when the objective is mounted on the camera, comes into contact with at least one of the contact pins within the camera. The bridge 5 serves as a coded contact arrangement which, according to the contact code selected, determines the parameters of the data fed through the contact pins to the exposure meter. The bridge 5 may support insulating plates 9 whereby one or more of the pins are not brought into electrical connection with the bridge. <IMAGE>
Patent GB-2022120-A (GB)
Title: Azo dyes which are soluble in organic solvents
IPC: C09B31/043
Filed: 1979-04-12
Abstract: The present invention provides azo dyes which have the general formula   <IMAGE>  where X is hydrogen, methyl, ethyl, methoxy, ethoxy, chlorine, bromine, nitro, cyano, C1-C8-alkoxycarbonyl or C1-C4-alkylsulfonyl, Y is chlorine, bromine, nitro, cyano, methyl, phenylazo or methylphenylazo,  Z is hydrogen, chlorine, bromine or C1-C8-alkoxycarbonyl,  R<1> is hydrogen or methyl,  R<2> is hydrogen, methyl, chlorine, methoxy or ethoxy,  R<3> is C1-C4-alkyl and  R<4> is C6-C13-alkoxycarbonylethyl or -alkoxycarbonylpropyl. Because of their high solubility in organic solvents the new dyes are particularly suitable for dyeing petroleum products, greases and waxes.
Patent GB-2019697-A (GB)
Title: Function selection apparatus for a centrally controlled telephone exchange
IPC: H04Q3/545
Filed: 1979-04-20
Abstract: For connection establishment in a centrally controlled telephone system, switching functions are effected between main states and each main state transition corresponds to a plurality of intermediate state transitions. Instead of storing all possible intermediate states including those for auxiliary functions which require visual or audible indication, only those intermediate states (ZZ1 to ZZ4) are held in a state store (ZL) which are essential for the main state transitions. A target main state selector (ZiZE) enables each main state transition (HZ3 to HZ4) to be defined for determination of the intermediate states essential for that transition and also for a setting-up routine (ER) to determine the auxiliary functions associated with, and in time for completion of, the main state transition. The initial or current main state of a transition is indicated by units (AG1 to AGn) respectively associated with traffic classes and to which a request (A) from a central control unit for the main state transition is allocated. <IMAGE>
Patent GB-2021464-A (GB)
Title: Adjustable ratchet wrench
IPC: B25B13/12
Filed: 1979-05-14
Abstract: An adjustable ratchet wrench is a sliding jaw adjustable wrench modified by eliminating the adjusting screw and substituting a locking member 36 and a lever 30 to engage and disengage the locking member with a rack 25 or other rough surface on the movable wrench jaw 21. A tension spring 40 lightly biases the movable jaw 21 toward closed position. With the locking member 36 disengaged from the rack 25, the movable jaw may be manually opened, and when the movable jaw is released the light spring bias closes the jaws 11, 21 on a bolt head. When the wrench jaws are engaged with a bolt head, rotation of the lever 30 against the wrench handle 13 engages the locking member with the rack to turn the bolt, while rotation of the lever away from the handle disengages the locking member and permits the jaws to open against the light spring bias and slip over the angles of the bolt head; thus eliminating the need to remove and replace the wrench on the bolt head. <IMAGE>
Patent GB-2024727-A (GB)
Title: Writing implements
IPC: B43K7/00
Filed: 1979-07-18
Abstract: A writing implement (1) has a body formed by a pair of leaves (2, 3) each having a longitudinally extending bore (4) therein, with the bores (4) coaxial and the leaves inter engaged in the manner of a hinge, and a writing member (8), such as a pencil lead or ball-point pen extending through the coaxial bores (4). The writing member (8) is preferably secured to an axially movable plunger (6) in the coaxial bores, which plunger (6) has grooves (10, 11) co-operating with projections (12, 13) from the leaves such that a writing tip (9) of the writing member (8) is caused to project from one end of the leaves (2, 3) upon appropriate movement of the leaves (2, 3). <IMAGE>
Patent GB-2028713-A (GB)
Title: A method of cooling a cable sheath of extruded plastics material
IPC: B29C48/91
Filed: 1979-08-20
Abstract: A cable is made with a sheath of extruded plastics material. During manufacture it is desirable to cool the sheath as rapidly as possible without damaging the sheath by imposing too great a temperature gradient thereon. To this end the sheath is cyclically cooled (e.g. in troughs of water) until there is a danger of damage and then reheated to relieve the build up of stress and then recooled and so on. At least the first reheating step is performed with a fluid of low thermal conductivity (e.g. air), preferably at a temperature above the softening temperature of the plastics material.
Patent GB-2030479-A (GB)
Title: Liq. treatment of articles
IPC: C25D21/08
Filed: 1979-08-23
Abstract: Apparatus for the liquid treatment of articles, for example during a galvanizing process, comprises a perforated drum for containing the articles, a tank (1) and a spraying device (2). The drum can be rotated, and the spraying device (2) can be pivoted about end regions (22) and (23) of an inlet pipe. The drum is supported on the tank (1) by bearings (5) and can be moved into sealing engagement with the spraying device (2), which is constructed as a chamber into which nozzles discharge. This results in liquid sprayed from the nozzles being forced into the drum to provide efficient rinsing of the articles while the drum and the spraying device (2) oscillate together. <IMAGE>
Patent GB-2038248-A (GB)
Title: Tyre crown reinforcements
IPC: B60C9/20
Filed: 1979-10-19
Abstract: A radial tyre has a belt (5) whose edges are reinforced by members (9) each having filaments (13) which intersect one another at an angle of substantially 90 DEG  and which each lie at an angle of from 30 to 60 DEG , preferably 45 DEG , to the circumferential direction of the tyre. Each member (9) may be a single ply structure comprising an integral network of filaments (13) as shown in Figure 3, or may be formed by two superposed and cross-laid cord plies. The belt (5) may as shown comprise two plies (6), (7) with cords at 18-25 DEG  to the circumferential. <IMAGE>
Patent GB-2043318-A (GB)
Title: Liquid crystal display device
IPC: G09G3/18
Filed: 1979-12-21
Abstract: A liquid crystal display device comprising a display (24) includes a numeral display and a unit display indicating e.g. in a thermometer a number of degrees C,: a dynamic driving circuit (20) connected to said numeral display and a static driving circuit (28) connected to said unit display cause numeral information and unit information to be simultaneously displayed. Low supply battery voltage can be indicated by flashing the unit display. <IMAGE>
Patent GB-2040230-A (GB)
Title: Valve actuators in multiple stream liquid application apparatus
IPC: B41F17/00
Filed: 1980-01-23
Abstract: Multiple stream liquid applicator apparatus includes a conveyor for guiding strip material such as carpet past a liquid application station; and an array of multiple openings such as nozzles arranged above and transversely of the conveyor at or adjacent the application station. Multiple remote controllable valves 48 are selectively actuable by a programmable electronic control to cause respective streams of liquid to issue from the nozzles onto the strip in accordance with a predetermined pattern of application of the liquid to the strip. Each of the remote controllable valves 48 is a solenoid actuated valve which includes a magnetically sensitive plunger 88 and an abutment 110, 133 limiting movement of the plunger 88 away from the valve closed position. Means 132, 138 is provided to adjust the clearance between the plunger of each valve and the abutment whereby to permit standardization of valve operation. <IMAGE>
Patent GB-2071927-A (GB)
Title: Improvements in or relating to retaining means for elongate members
IPC: H01R13/426
Filed: 1980-03-14
Abstract: Retaining means for retaining elongate members, such as electrical conductors, comprises a conical member 10 having a tapering bore and a locating base 12 at the larger diameter end of the conical member. The conical member is provided with or adapted to be provided with at least two slits which extend axially along the length of the conical member so as to divide the conical member into at least two limbs. The member is formed of a resilient material such that the limbs are resi- lient. When an elongate member having a diameter substantially the same as the bore at the larger end of the conical member is inserted through the conical member, the limbs are deflected outwardly and hence grip the elongate member. <IMAGE>
Patent GB-2053989-A (GB)
Title: A sewing machine
IPC: D05B55/14
Filed: 1980-05-29
Abstract: A sewing machine having a needle driving apparatus for selectively changing the distance of needle travel is described, the apparatus comprising a needle (4) carried by a needle clamp (3) and reciprocated by a crank-driven control lever (9) along a pathway defined by a fixed needle guide bar (6). One end of the control lever (9) has a lever (15) pivotably connected thereto and the opposite end of this lever (15) is pivotably connected to an eccentrically mounted and selectively positionable pin (16) that protrudes from the sewing machine housing (2). The variability of the position of the pin (16) enables the distance a needle travels to be varied for the purpose of accommodating workpieces of different thicknesses. <IMAGE>
Patent GB-2077148-A (GB)
Title: Apparatus and method for producing high sensitivity magnetochemical particles
IPC: G03G19/00
Filed: 1980-06-07
Abstract: Improved apparatus and method for continuously producing high sensitivity magnetochemical particles 12 consisting of joined pairs of pre-oriented magnetic metallic spheres 10 which have been heat treated, magnetically annealed, then plated with colour forming metals and overcoated with a chemically resistant coating. These spheres 10 are seated in surface dimples impressed on the opposed surfaces of a mobius loop 42. A resin coating applied to the surface of the film loop 42 encases and binds the spheres and a directional magnetic field is applied to rotate and orient the encased spheres 10. The resin coating is dried, then adhesed to a take-off film 92 which strips it from the logs surface. The sphere surfaces are then abraded and tinned with solder. Two portions of the take-off film are then assembled with the tinned surfaces of confronting spheres 10 engaged and they are soldered. The take-off films 92 are stripped away, and the resin material dissolved and the particles recovered from the solvent. <IMAGE>
Patent GB-2084417-A (GB)
Title: A Trigger Circuit
IPC: H03K3/037
Filed: 1980-09-19
Abstract: A trigger circuit is described having two long tailed pair circuits (1, 2) each comprising a pair of transistors the emitters of which are connected jointly to a respective common current source for the pair. An input terminal (17) is connected to the base of the first transistor (11, 22) of both pairs. D.C. connections (31, 32; 35, 36) are provided from the first transistor (11, 22) of each pair to the base of the second transistor (21, 12) of the other pair. The voltage swing on change of state at the collector of the first transistor of one pair is smaller than that at the collector of the first transistor of the other pair and sets the hysteresis for changes of state of the other pair in response to changes in voltage applied to the input terminal. <IMAGE>
Patent GB-2087744-A (GB)
Title: Method and apparatus for controlled removal of excess slurry from organic foam
IPC: C22B21/06
Filed: 1980-11-05
Abstract: In manufacturing ceramic foam filters for molten metals such as aluminum, body of polyurethane foam is impregnated with a slurry of ceramic material and placed on a slurry-permeable screen 18. Excess slurry is squeezed from the foam by lowering press platen 13 while evacuating the space beneath the screen, until the foam is reduced to below 50% of its normal volume. When the foam is allowed to expand, the ceramic slurry is uniformly distributed therein. <IMAGE>
Patent GB-2062738-A (GB)
Title: Mine Roof Support Elevated Platform
IPC: E21D23/00
Filed: 1980-11-07
Abstract: A mine roof support (10) comprises an elevated platform (13) between the support base (11) and a roofing bar structure (12). The height of the platform (13) is adjustable relative to the base (11) by means of a jack or jacks (17) whilst its horizontal attitude is maintained throughout the range of adjustment by means of a parallel motion linkage (21). The linkage (21) is connected to a shield (22) itself connected by a parallel motion linkage (23) to the base (11). Coal face support sprags (15, 16) are pivotally mounted on the platform (13) and roofing bar structure (12). Vertical adjustment of the platform (13) provides access to any part of the coal face (14). The roofing bar structure (12) is supported from the base (11) and from the platform (13) by props (18, 19). The support may have tracks and be advanceable by jacks. <IMAGE>
Patent GB-2069360-A (GB)
Title: Membrane plate locking union
IPC: B01D25/164
Filed: 1981-02-05
Abstract: A filter cloth locking union (10), for use with a filter press plate having an inflatable membrane (18) is of a resiliently deformable material and is in the form of a flanged bush (12) having a slurry feed aperture (19) therethrough and a feed recess (21) in an outer face (23) of the flange (13) communicating with the aperture (19). Within the flange (13) in the region of the recess (21) is a rigid metal bridge member (25) and a flexible reinforcing fabric (27) at the radially outward side of the bridge member (25). The thickness of the flange (13) is such that the outer surface (23) stands proud of membrane (18) and contacts an adjacent chamber plate when the press is closed, thus pressing the membrane (18) against the plate (15) to prevent leakage of pressure fluid from the space (22) between the membrane (18) and the plate (15) to the feed aperture (19). As shown, two unions (10) on opposite sides of plate (15) interlock. <IMAGE>
Patent GB-2092525-A (GB)
Title: Attaching sheet material to a surface
IPC: G09F1/10
Filed: 1981-02-06
Abstract: A sheet (5) is attached to a surface (1) by a plastics a strip (3) having one or more inwardly directed lips (4) along one longitudinal edge. The sheet edge can be folded or perforated to engage behind the lips (4). Several strips (3) can be mounted on a common backing piece attached to the surface (1), eg forming a panel, wall, noticeboard, carton, cabinet. The sheet (5) is a card, paper, memorandum poster or index label which can be provided with a crease line to form lip (7).   <IMAGE>
Patent GB-2095095-A (GB)
Title: Button covering press
IPC: A44B1/12
Filed: 1981-02-24
Abstract: A button press has a reciprocating carrier 10 carrying lower dies 8, 9 so that either of these can be placed below an upper die 7. The lower dies are alternately loaded and brought below the upper die and the latter is actuated automatically as the lower dies are brought into line with it, for crimping together button backs and button caps. <IMAGE>
Patent GB-2074613-A (GB)
Title: Clothes-washing Machine Comprising Improved Product Boxes
IPC: D06F39/02
Filed: 1981-04-10
Abstract: A washing machine comprises a washing-agent box 6 disposed at least on one side of the machine between the drum 2 and the upper part of the tank 3, said box 6 having a flattened shape practically matching the shape of the drum. The box is open at its lower end to allow the water+agent mixture to pass therethrough while retaining the undiluted agent comprises further openings 20 or an opening (48), Fig. 3 (not shown), for introducing water brought by a ring of water formed by rotation of said drum in the partially filled tank. In one embodiment, Fig. 1, a fixed box 6 for powder has a rib 13 which participates with a trough 14 to retain dry powder. Water enters the box through louvre apertures 20 and apertures 21 and the mixture leaves through an opening 12. In a modification, Fig. 2 (not shown), the powder box is removable. In another embodiment, Fig. 3 (not shown), a removable box for liquid agent empties, under the action of the ring of water, through a siphon system (44). <IMAGE>
Patent GB-2076114-A (GB)
Title: Vibration damping coupling
IPC: F16D3/19
Filed: 1981-04-27
Abstract: A flexible coupling device for accommodating both parallel misalignment and axial misalignment employs an elastomeric liner 23 between the driving member 16 and driven member 21. The driving member has radially projecting axially extending fins 18 received slidingly within internal recesses 27 provided in the elastomeric liner. The elastomeric liner has a series of external bulbous projections 24 each received within a pocket 22 provided in the driven member. The radially outer surface of each fin 18 is rounded and there is provided a clearance 28 between the region of driving member 16 between fins and the adjacent part of the liner 23, these features facilitate the accommodation of angular and parallel misalignment respectively. <IMAGE>
Patent GB-2099194-A (GB)
Title: Device for checking tachograph discs
IPC: G07C5/00
Filed: 1981-05-26
Abstract: A device for checking tachograph discs comprises a base 10 adapted to receive and locate a tachograph disc 1 and a transparent member 20 which fits over the tachograph disc so that the transparent member and disc are rotatable relative to one another. The transparent member is marked with radial lines 23 arranged so that the angular separations between pairs of the lines correspond to predetermined intervals of time on the scale of hours marked on the tachograph disc. This enables the time intervals represented by traces in the tachograph disc to be easily checked, by setting one line against the beginning of a trace and noting the position of the end of the trace relative to another of the lines. The marked lines may include pairs of lines (such as A and F) indicating for example the maximum permitted period of continuous duty for the driver of the vehicle, and pairs of lines (such as B and C) indicating short intervals, such as half an hour. In the described embodiment, the transparent member 20 is a disc fitting into a circular recess 13 in the base 10 and the tachograph disc 1 fits into a smaller diameter recess 11. The transparent disc 20 has a portion cut away at 22 to allow the tachograph disc 1 to be rotated relative to the base 10 or to be held against the base whilst the transparent disc is rotated. The base 10 is marked with a scale 16 of hours. <IMAGE>
Patent GB-2083904-A (GB)
Title: Improvements in or relating to gas turbine engine dual fuel burners
IPC: F23R3/36
Filed: 1981-09-08
Abstract: A dual fuel burner for a gas turbine engine comprises a gas fuel manifold (28) and ducts (30) opening into a central air passage (16), a liquid fuel manifold (20) and tangentially arranged apertures (22) opening into an annular liquid fuel passage (24) terminating in an annular nozzle (26). The central air passage (16) has an upstream swirler (34), and is arranged to receive a flow of compressed air at its upstream end and to discharge a flow of compressed air and either gaseous or liquid fuel from its downstream end. The burner also has a water manifold (38) so that water can be injected into the fuel and air flow via ducts (40) and an annular air passage (18), to control NOx emission. In an alternative arrangement, the liquid fuel can be injected into the annular air passage. The burner is intended to operate on a range of high calorific fuels, both liquid and gaseous, and is designed to minimise the surface area on which carbon may accommodate during operation. <IMAGE>
Patent GB-2097829-A (GB)
Title: Warp knitted self-lined fabrics with woven appearance
IPC: D04B21/14
Filed: 1982-03-26
Abstract: A self-lining decorative fabric especially adapted for use as a drapery, and simulating the appearance of a woven fabric includes a non-woven or other substrate fabric with weft yarns 16 disposed on a first face of the substrate and warp yarns 18 lying on top of the weft yarns, optionally with curvilinear or zig-zag paths. Stitching thread holds the warp and weft yarns in place on the substrate first face, stitch portions 20' of the stitching thread passing over the warp and weft yarn, and loops of the stitching thread being disposed in contact with the substrate second face. The stitching thread may be the same color as the substrate while the majority of the warp and weft yarns are of a different color, and at least some of the warp and weft yarns preferably are effect yarns. When used as a drapery material, a foam backing or other coating may be applied adhering to the substrate second face. <IMAGE>
Patent GB-2117676-A (GB)
Title: A method and apparatus for cleaning air in rooms
Inventor: MIYOSHI NAGATO
IPC: B03C3/38
Filed: 1982-03-30
Abstract: The apparatus comprises a combination of a negative ion generator A1 and a positive ion electrifier B. The different kinds of particle, such as particles of dust and smoke, in the contaminated air within a room are charged negatively by negative ions generated by the negative ion generator A1. The negatively charged particles are forcedly drawn into the path of an air circulation stream created by a fan 58a within the positive ion electrifier B. When the negatively charged particles pass through a screen 72 in their path, they are absorbed by the screen 72 which is positively charged by the positive ions from the positive ion electrifier B. Air passing through the screen 72 is circulated within the room as clean air. The negative ion generator A1 includes a flexible sheet 28a coated with a conductive film 28b. <IMAGE>
Patent GB-2098951-A (GB)
Title: Launching a tethered sail for marine and other uses
IPC: B64C31/06
Filed: 1982-05-20
Abstract: Launching of a skysail is achieved by initially launching a pilot kite 1 on a flying line 3 and attaching one or more elements 6, 7 of the skysail to the flying line. The flying line is then reeled out until the skysail elements are at suitable altitude. The elements of the skysail are then set. To prevent their surging, some or all of the elements 7 may by packed furled or reefed on the line(s) 3 prior to being set. Once set, the pilot kite 1 may be recovered or hauled into a stowage tube at the head of the stack of main sail elements. <IMAGE>