baber/WOPTO huggingface dataset:
Patent GB-2027643-A (GB)
Title: Marine Craft
IPC: B63B1/20
Filed: 1979-08-21
Abstract: The invention relates to the hull shape of marine craft and is concerned to provide a hull that will have stability and good planing properties. The hull provided has at least two planing sponsons separated by at least one longitudinally- extending tunnel. The side surfaces of the tunnel are inclined so that the upper end of each side surface is nearer a vertical longitudinal plane through the centre of the tunnel than the lower end. This causes a constriction effect on the water passing through the tunnel when the craft is trimmed and effectively raises the water level towards the rear end of the tunnel. A propellor can then be mounted within the tunnel, the water being raised to it during planing. <IMAGE>
Patent GB-2068345-A (GB)
Title: Dispensing of granular materials
IPC: A01M9/00
Filed: 1980-01-31
Abstract: A granular material, e.g. a herbicide or other agricultural chemical, is applied in uniform and readily adjustable quantities using an applicator including a hopper (2) with orifices (14) in its base for discharging the granular material onto metering wheels (24) mounted on a drive shaft (15) beneath the hopper. The wheels (24) are arranged substantially to close the orifices (14) when stationary, and to feed the material to a spreader upon rotation. The shaft (15) and wheels (24) are rotated at a preset speed by a motor (21), the speed of the motor (21), and thus the rate of application of material, being maintained substantially constant by control means that constantly monitor an A.C. feedback from the motor (21) and controls motor speed by adjusting the current fed to the motor (21) to compensate for speed changes of the motor (21). <IMAGE>
Patent GB-2042414-A (GB)
Title: Dry-spinning polymer filaments
IPC: B29C48/05
Filed: 1980-02-07
Abstract: A process for making polymer filaments which have a high tensile strength and a high modulus by stretching a polymer filament which contains a substantial amount, eg at least 25 wt of polymer solvent at a temperature between the swelling point and the melting point of the polymer. A solution of the polymer may be spun to a filament through a spinning aperture and the spun filament cooled to below the dissolution temperature of the polymer without substantial evaporation of solvent from the filament and then brought to a temperature between the swelling point and the melting point of the polymer, and stretched. By the process polyethylene filaments may be obtained having a tensile strength of at least 1.2 GPa.
Patent GB-2049122-A (GB)
Title: Boilers
IPC: F24H1/26
Filed: 1980-02-12
Abstract: A fuel burning boiler comprises a water holding shell of sheet steel having front and rear walls defining axially aligned openings. An insert body passes through the openings and is affixed thereto, the water being held between the shell and insert body. The insert body includes a cast iron casing providing a combustion chamber in the interior thereof, defining ducts for combustion gases of the fuel burnt in the combustion chamber and a smoke box at the rear wall and in communication with the ducts for receiving the combustion gases therefrom, and a sheet steel casing forming a skin over the cast iron casing and tightly fitting thereover. The sheet steel casing is fluid tightly connected with the front and rear walls of the shell around the rims of the opening therein.
Patent GB-2044695-A (GB)
Title: Vehicle Suspension Ride Height Adjustment
IPC: B60G17/04
Filed: 1980-02-22
Abstract: In a motor vehicle rear suspension system of the type in which each rear wheel is supported on the vehicle sprung structure by means of an arm 2 articulated on the sprung structure and wherein a suspension spring unit 5 acts upon the arm to control relative movement between the arm and the sprung structure, there is interposed, between the suspension spring unit 5 and the wheel supporting arm 2, an extensible strut 10 which is constituted by a slave jack of the hydraulic type. A manually operable pump or master jack 20 is also provided, on the sprung structure of the vehicle and accessible for operation by the vehicle user and hydraulically interconnected with the slave jack to control and effect extension and contraction thereof and hence the required vehicle ride height. <IMAGE>
Patent GB-2073694-A (GB)
Title: Cooling apparatus for use with cable sheathing equipment
IPC: B29C48/06
Filed: 1980-04-10
Abstract: Cooling apparatus for use with cable sheathing equipment 3 for cooling plastics sheathing which is extruded onto strand-like material 1. The sheathed material passes through a vertical cooling section 4 until the sheathing has been cooled down to such an extent that the material can be deflected out of its direction of movement, with minimum traction forces. The sheathed material is then fed to a rotating cylindrical continuous- feed-type storage means 6 having a horizontal or approximately horizontal axis of rotation, and around which the windings are formed having a diameter which is greater than that of the rotating cylinder 6, support means 7 ensures approximately equal winding diameters and the storage means 6 rotates in a water bath or is sprayed with water on all sides in a container 5. <IMAGE>
Patent GB-2077292-A (GB)
Title: Electrolytic Recovery of Ag
IPC: C25C7/00
Filed: 1980-05-27
Abstract: An electrochemical device for recovering a precious metal from an electrolyte solution, for example silver from a waste photographic fixer solution, comprises a plating tank 25 with a bottom inlet port 39 and a top outlet port 26' for the solution. In the tank are a cylindrical anode 34 and a cylindrical cathode 37 surrounding it. Means 41, 42 are provided tor causing the electrolyte in the tank to circulate in a torroidal flow inside and outside the anode whereby silver is plated onto the anode. The silver-free fixer can then be recycled and reused. The electrolytic process may be automatically controlled and incorporates a current sensing circuit to ensure adequate cell current is of a sufficient strength before the plating process is initiated. <IMAGE>
Patent GB-2067779-A (GB)
Title: Toy cine projector apparatus
IPC: G03B21/32
Filed: 1980-05-30
Abstract: In a cine projector having a compartment for a sealed magazine containing endless film driven by means of a sprocket wheel and two resiliently biased pressure rollers (as in Application No. 8017841), the magazine contains an aperture (178, Fig. 24) for receiving the wheel 124 and rollers 126 which are situated in the compartment (103, Fig. 17). A lever (120) carrying a cam 118 effects movement of the sound head (112) and an inclined plate 150 carried by a slide 110, and through plate 150 and lever 148 movement of the rollers, from and to operative positions to enable loading of the magazine. The compartment also contains pins (107) which release the film from retention means (190/192, Figs. 21 and 25) on loading. <IMAGE>
Patent GB-802011-A (GB)
Abstract: 802,011. Powder metallurgy. REGIE NATIONALE DES USINES RENAULT. Jan. 19, 1955 [Feb. 5, 1954; Jan. 6, 1955], No. 1689/55. Class 82(1) [Also in Group XXVII] The tungsten sparking plug electrodes 1, 2, Fig. 6, which are non-porous and have a density greater than 17.5 grms./cc., are produced by compacting and moulding under pressure tungsten powder and then calcining at a temperature of 1800-2100‹C. in an atmosphere of argon and hydrogen the content of the latter being less than 10 per cent or heating to 1100‹C. in an atmosphere of, first hydrogen, and then argon. The compacted powder has a density of less than 3 grams/cc. and the moulding pressure is between 7-10 kg/mm<SP>2</SP> (see also Group XXVII).
Patent GB-2054545-A (GB)
Title: Recovery of uranium from an impure phosphoric acid
IPC: C22B60/02
Filed: 1980-07-18
Abstract: Uranium (VI) contained in an impure phosphoric acid, particularly a wet-process phosphoric acid, is recovered in a process that comprises a first cycle of extracting the impure acid by an organic phase comprising a dialkyl phosphoric acid, a trialkylphosphine oxide, and an inert diluent, re-extraction of the uranium (IV) by means of an aqueous solution of phosphoric acid containing ferrous ions and a second extraction step after oxidation by a second organic phase comprising a dialkyl phosphoric acid, an inert diluent, and if appropriate a synergistic extraction agent which is a trialkyl phosphine oxide dibutyl butyl phosphonate or trialkylphosphate which, before regeneration, is washed by means of a sulphuric solution containing less than 40 ppm of iron. The process can be used for the production of uranium with a Fe/U weight ratio of less than 0.2%.
Patent GB-2062265-A (GB)
Title: A method to process silver halide photosensitive material
IPC: G03D3/00
Filed: 1980-09-03
Abstract: A method of washing a silver halide photographic material which has undergone an operation comprising fixing, which comprises washing the fixed material successively in a series of compartments of a preliminary aqueous washing bath, arranged so that washing water is flowed from each compartment to its predecessor countercurrent to passage of the silver halide material through the compartments, replenishing the washing water in the second or a subsequent compartment in the series (reckoning in the direction of passage of the material) and, after, the preliminary washing, washing the material in a separate aqueous bath.
Patent GB-2084085-A (GB)
Title: Automotive vehicles comprising a working platform on the roof with a safety rail
IPC: B60P3/14
Filed: 1980-09-17
Abstract: An automotive vehicle such as an outside broadcast vehicle comprises a body having a roof 7 which provides a working platform for personnel and has a safety rail 2 which is movable between a stowed position adjacent to the roof 7 and an operative position where it provides a safety barrier along at least part of the perimeter of the working platform. Fluid-operated main cylinders 1 move the safety rail 2 between the stowed position and the operative position, and fluid-operated lock cylinders 11 drive locking rods 10 for mechanically locking the safety rail in the operative position. <IMAGE>
Patent GB-2063146-A (GB)
Title: Mould for the production of seat- cushions
IPC: B29B7/00
Filed: 1980-10-28
Abstract: A mould for the production of seat-cushions from an expanded material comprises two mould halves (2,3) which, when brought together, define an enclosed cavity for the reception and moulding of the expanded material; at least one of the mould halves consists of at least one sheet (3) of a thermoplastics material having a configuration corresponding to that of one part of the cushion. The sheet (3) can be supported on a layer (9) of an insulating material within a box-like member (8). <IMAGE>
Patent GB-2089155-A (GB)
Title: Detecting pulses which do not have a predetermined spacing
IPC: H03K5/19
Filed: 1980-12-03
Abstract: Detector apparatus for pulses which do not precede or succeed another pulse by a predetermined time comprises first and second delay devices (5 and 38) the second (38) of which is fed from an input terminal (1) via a detector circuit (3) which transmits an input pulse only if this pulse does not coincide with a preceding input pulse delayed in the first delay device (5). If a pulse is transmitted by the detector circuit it is delayed in the second delay device and applied to a blocking circuit (29) which only transmits it to an output terminal (2) if the pulse, thus delayed, does not coincide with another input pulse. If a monostable circuit (7) is absent the delays produced by the two delay devices are chosen equal to each other. The apparatus may be modified to respond to a range of pulse spacings by including the monostable circuit (7), the astable period of which is chosen to be equal to the difference between the two ends of this range, and making the delay produced by the second delay device greater by this difference than the delay produced by the first delay device. The signal at input terminal 1 may be delayed in a further delay device (102) by an amount equal to the delay produced by the second delay device (38) and applied to an AND gate (101) the other input of which is fed with the inverted signal at the output terminal (2), to form a pulse repetition interval filter. (Figure 1). <IMAGE>
Patent GB-2075673-A (GB)
Title: Apparatus and method for detecting a constituent fluid in a fluid flow
IPC: B01D53/22
Filed: 1981-04-29
Abstract: Apparatus for detecting a constituent fluid in a fluid flow which also includes a contaminant comprises a conduit for flow of the fluid, the conduit being permeable to the contaminant, means enclosing the conduit and having an inlet and an outlet for flow of diluent to remove the contaminant, a detection for the constituent and means for passing either the fluid flow from the conduit on a reference flow to the detector. The fluid flow line may include reactor means for conversion on breakdown of the constituent.
Patent GB-2075864-A (GB)
Title: Flocked shaped articles
IPC: B05D5/12
Filed: 1981-05-11
Abstract: A flocked shaped article (e.g. a sealing strip for an aperture in the body of a motor vehicle) is made from a plastics or elastomeric material (such as an EPDM monomer) which is non-polar (thus being highly resistant to the effects of weather and sunlight). The surface to be flocked (5) is treated, prior to flocking, with a substance which concentrates the lines of force of an applied electrostatic field thereon. The substance may comprise a film of an electrically conductive material (e.g. an adhesive) and this material preferably contains one or more metal derivatives (especially metal derivatives which exhibit ferromagnetic behaviour). This ensures uniformity of flocking as well as economy of materials, the untreated surfaces of the article tending not to attract the fibres used for flocking.
Patent GB-2078473-A (GB)
Title: Aquiculture
IPC: A01K61/00
Filed: 1981-05-12
Abstract: Aquiculture is carried out in enclosures D which are clear of the sea bed and enclosures E which are in contact therewith. Food is fed to fish in the enclosures through a pipe B which extends from a control station A situated on or near the shore or on the sea. Fish are introduced into the enclosures D and E and removed therefrom using an enclosure F, the operations involved being carried out by divers. The enclosures D and E are made of net and maintained in shape by sinkers and floats. Suitably their transverse section is lunular. <IMAGE>
Patent GB-2076431-A (GB)
Title: Highly orientable iron particles for magnetic recording
IPC: C21B13/00
Filed: 1981-05-22
Abstract: Acicular iron oxide particles are treated with an aqueous solution of sodium tripolyphosphate, and dried to produce a matrix. The oxide is reduced by subjecting the matrix, to a reducing gas at an elevated temperature. The reaction time and consumption of hydrogen gas during the reduction is decreased if the reduction is carried out in the presence of a dehydrating agent (e.g. calcium metal, hydride or carbide).
Patent GB-2086415-A (GB)
Title: Process for oligomerization of C2 to C10 normal olefins
IPC: C07C67/00
Filed: 1981-06-12
Abstract: A process for the oligomerization of normal C2-C10 olefins, for example n-butenes by passing a feed containing said olefins in liquid phase through a fixed bed of acid, cation exchange resin at a temperature in the range of 40 to 185 DEG C at LHSV of 0.10 to 10 and recovering the oligomer product. In the case of n-butenes the principal component of the oligomer product is C8 dimer. <IMAGE>
Patent GB-2103714-A (GB)
Title: Adjustable air deflecting grille for electric fans
Inventor: PAO-HSI WANG
IPC: F04D25/10
Filed: 1981-08-10
Abstract: The fan is provided with an air deflecting grille 1 which is divided into sectors A-F, each including pivotally mounted guide vanes 2. Rotation of a central knob causes the angle of the vanes to be altered to alter the direction of the air flow. The guide vanes in the sectors ACDF are also provided with adjusting knobs 28-31, the rotation of which provides additional adjustment of the angle of the vanes to change the air flow from a circular to an elliptical pattern. <IMAGE>
Patent GB-2087638-A (GB)
Title: Ring laser gyroscope
IPC: H01S3/083
Filed: 1981-10-16
Abstract: A laser gyroscope has a non- planar propagation path arranged to provide differential phase shift between pairs of waves of opposite circular polarization and between waves of opposite rotation directions (e.g. using a Faraday rotator). In order to eliminate small amounts of drift due to the different phase shifts or dispersion produced in the propagating waves by the gain medium, means are provided to compensate such phase shifts or dispersion, e.g. by providing (coils 202, 212, 222, 232) a magnetic field axially of the path to effect Zeeman splitting of the laser gain medium and thus provide an equal amount of dispersion to the counter-travelling waves. The amount of magnetic field generated for the Zeeman splitting is preferably controlled in relation to the amount of bias provided by the Faraday rotator. The Faraday rotator consists of a number of cylindrical apertures lying at an angle to the optic axis. A relatively thin (to reduce scattering) rare earth doped glass or similar material of high Verdet constant is used on the rotator. <IMAGE>
Patent GB-2088187-A (GB)
Title: Root crop harvester
IPC: A01B63/32
Filed: 1981-10-21
Abstract: Depth control system for a potato harvester 10 comprises a hydraulic ram 46 to raise and lower a root lifting share 22 at the forward end of a digger web 24. Ram 46 is controlled by a solenoid valve to which depth- control signals are fed by a control switch 56 monitoring potato ridge height by means of a pneumatic sensor wheel 50 mounted on a leading arm 52 and riding along the top of the ridge. Sensor wheel 50 is positioned in front of share 22 by a distance corresponding to the response rate of the depth control system, having regard to the forward speed of the harvester. The system also includes an independently operable means to cause the hydraulic ram to raise the root lifting means. This means suitably comprises a double pole inhibit switch to isolate switch 56, and a manually operable height control means. <IMAGE>
Patent GB-2090367-A (GB)
Title: Scaffolding couplings
IPC: E04G7/30
Filed: 1981-12-30
Abstract: In builder's scaffolding, the invention substitutes steel pressing for other forms of fabrication in making a spigot (4) for attachment to a cross-member (1) intended for coupling to an upright by insertion of the spigot into a loop-type socket (3) on the upright (2), yielding economic advantages in the manufacture of the scaffolding. In a preferred embodiment, the spigot (4) is a channel of U-section, the free edges of the channel (corresponding to the tips of the limbs of the U in cross-section) being profiled to match the exterior of the upright (2) to permit a tight fit on assembly with the aid of a wedge (5) inserted into the socket (3) and hammered home. <IMAGE>
Patent GB-2093407-A (GB)
Title: Plastics trim strips
IPC: B60J10/02
Filed: 1982-01-12
Abstract: A trim strip of plastics material has a first component 21 comprising a flexible thermoplastic resin and a second reinforcing component 22 integral with the first component and comprising a relatively rigid thermoplastic resin. A permanent curve, which shows no wrinkles or distortion, is formed in a section of the strip by heating the strip until both components are pliable, stretching the heated section round a forming jig, maintaining the section under tension round the jig until the section has cooled to a non-pliable state, and removing the cooled curved section from the jig. <IMAGE>
Patent GB-2096569-A (GB)
Title: Plastic bag
IPC: B29C65/00
Filed: 1982-01-22
Abstract: In a peripherally welded flexible plastic enclosure (10), Figure 1, intended to be divided into sealed compartments by externally applied clamping members 18 sealing to the edge of the welded seam (12) of the enclosure is allowed by forming the portion of the edge to be sealed with a beadless weld which has an inwardly extending pad (16). The beadless weld may be produced by placing a non-conductive fence 66, Figure 7B, adjacent a die portion 58 which forms the edge weld of the enclosure by R.F. heating. <IMAGE>
Patent GB-2091833-A (GB)
Title: Improvements in and relating to hose couplings
IPC: F16L33/23
Filed: 1982-01-25
Abstract: A reusable hose coupling comprises an inner sleeve member 10 and a segmental outer sleeve member 11 for surrounding at least part of the inner sleeve member. The peripheral dimension of at least part of the inner sleeve member increases progressively towards that end of the member which in use is inserted into the end of a hose, and the inner surface of the assembled segmental outer sleeve member is of a shape complementary to the outer surface of said part of the inner sleeve member. The inner surface of the assembled outer sleeve member has at least one serration 21 which extends in a direction generally transverse relative to the longitudinal axis of the coupling so as to tend readily to grip the outer surface of a hose and move with the hose in the event of the hose being pulled axially relative to the inner sleeve member. The grip exerted by the inner and outer sleeve members on the end of the hose therefore increases as the axial pull increases, and said grip is less dependent on the uniformity and tolerance of the hose wall thickness than is the case for a reusable coupling of conventional design. <IMAGE>
Patent GB-2094698-A (GB)
Title: A clipper blade
IPC: B26B19/06
Filed: 1982-02-15
Abstract: A clipper blade in the form of a comb 10 is assembled, in use, with a further clipper blade in the form of a cutter 15. The comb has mounting surfaces 13, 14 which are of torroidal, preferably spherical, curvature and over which the cutter slides. The comb has a row of teeth 12 which co-operate with teeth 16 on the cutter to effect clipping and is also formed with a number of ribs 26 transverse to the row. During assembly, the comb and cutter are urged together and the comb flexes so that the curvature of the mounting surfaces diminishes. However, in view of the ribs, there is greater resistance to flexing in said transverse plane so that where the curvature in a plane parallel to the row is diminished, the curvature in the transverse plane will diminish less. <IMAGE>
Patent GB-2122126-A (GB)
Title: Reinforced concrete
Inventor: CLAPSON JOHN DAVID
IPC: E04C5/18
Filed: 1982-04-14
Abstract: The invention relates to an apparatus for supporting reinforcement in concrete during casting. It consists of a rod (2) which is mounted at its ends on frames (4) to support reinforcements (6). In order to restrict bending of the rod (2), the frames (4) are coupled to the rod (2) at points spaced along its length by for example, auxiliary struts (16). This arrangement enables reinforcement (6) to be supported at a high level in the body as it is cast, while providing unrestricted space below it for services (20). <IMAGE>
Patent GB-2097488-A (GB)
Title: A sleeve member for a bearing
IPC: F16C33/58
Filed: 1982-04-19
Abstract: A sleeve member (12) for a bearing, particularly a roller or needle bearing, is disclosed comprising an axially extending portion (13) having adjacent to but spaced from one end an annular portion (15) extending circumferentially of the sleeve member and which is softer than the rest of the sleeve member. The sleeve member (12) finds application where one end portion (16) must be bent over after assembly of the bearing. With the end portion (16) bent over, it provides a hard wear resistant axially facing surface. Annular portion (15) forms the bend and being softer, cracks do not occur. This construction may be achieved either by hardening the entire sleeve member (12) and then tempering the annular portion (15) or by covering the annular portion (15) when hardening the outer race ring (portion 13).