baber/WOPTO huggingface dataset:
Patent GB-2032896-A (GB)
Title: Upgrading nickel ores
IPC: C22B23/00
Filed: 1979-08-13
Abstract: A process for upgrading the nickel content of a nickeliferous ore of lateritic origin comprises subjecting the ore to controlled attrition to liberate the friable portions in the ore particles without breaking the harder portions, such that the d90:d10 ratio of the ore (where d90 is the smallest size of mesh passing 90% by weight of the ore and d10 is the smallest size of mesh passing 15% by weight of the ore) subjected to attrition is at least twice the d90:d10 ratio of the original ore, and classifying the ore particles according to their size, those having a size below a certain value being recovered as the upgraded ore of higher nickel content.
Patent GB-2037942-A (GB)
Title: A Photocopier Fixing Roller Assembly
IPC: G03G15/20
Filed: 1979-11-20
Abstract: A pressure fixing roller assembly in a photocopier comprises a frame 12, a first roller 28 rotatable in the frame, and a pair of arms 20 pivotably attached at 24 to the frame. A shaft 32 extending between the arms and pivotably attached thereto, is bendable toward the first roller 28 when the arms are pivoted at 24. A second roller 46 coaxially aligned with the shaft is mounted by means of bearings 48 on the shaft 32 for rotation and in pressure engagement with the first roller 28. The arms 20 may be pivoted about pins 24 by means of compression springs 36 adjustable by nuts 44 for bending the shaft 32, thereby changing the pressure exerted by the second roller on the first roller. <IMAGE>
Patent GB-2037463-A (GB)
Title: Field excitation control of synchronous machine
IPC: H02H7/08
Filed: 1979-12-20
Abstract: With a view to preventing both overexcitation and underexcitation of the field of a synchronous rotating electrical machine, and thereby extending the operating range of the machine, the system comprises a regulating unit (5) for connection to the field regulator and having two inputs from a unit (4) for providing controlled limitation of the excitation of the field. The unit (4) has two inputs derived from a circuit (1) for the evaluation of any deviation of the stator current of the machine from a predetermined limit, and a third input derived from an amplifier (3) connected so as to amplify the output of a sensing element (2) of wattless current or of the output of the synchronous machine. In operation of the machine, the system causes the excitation of the field to be reduced if it is overexcited and increased if it is underexcited, in dependence on the stator current.   <IMAGE>
Patent GB-2043594-A (GB)
Title: Apparatus for dispensing a controlled dose of a fluid
IPC: A61M5/168
Filed: 1980-02-26
Abstract: A dispensing apparatus comprising a rigid chamber divided into two elastic dispensing chamber 1.13, 1.14 by a deformable liquid-filled partition chamber 1.2 defined between two diaphragms 1.3, 1.4. Inlet ducts 1.15 and 1.16 controlled by valves 1.21, 1.22 lead to the elastic chambers and outlet ducts 1.19, 1.20 controlled by valves 1.23, 1.24 leave the chambers. By controlling valves 1.21 and 1.24 together and valves 1.22 and 1.23 together, the dispensing chambers are alternatively filled and emptied, each dispensing a dose of fluid having a volume equal to the combined volume of the elastic chambers This combined volume can be varied by positioning an adjusting piston 1.6 in an adjusting cylinder 1.9. The apparatus may be a disposable module for clinical use. The inlet and outlet valves may be the membrane type. The apparatus can be converted for active dispensing by connecting one chamber to a pump. <IMAGE>
Patent GB-2044320-A (GB)
Title: Device for Locating Control Elements in Well Bores
IPC: E21B17/10
Filed: 1980-02-29
Abstract: A locating device 11 for use within a casing string in a well bore locates a heavy armoured coaxial cable relative to a flow pipe within the casing string and also acts as a pipe protector. The rubber body 12 is secured around the flow pipe, and has an outwardly extending side portion 23 having a recess 25 for the coaxial cable. The general outline of a cross- section of the body 12 taken perpendicular to the axis of the flow pipe is substantially egg-shaped, and a steel core embedded in the body 12 has a cross-sectional shape which is also egg-shaped and corresponds generally to the said outline. Where a series of asymmetrical locating devices are secured along a flow pipe in an inclined casing and are aligned in corresponding manner, the locating devices locate the coaxial cable on the upper side of the flow pipe. <IMAGE>
Patent GB-2071473-A (GB)
Title: Seed planting device
IPC: A01C1/04
Filed: 1980-03-03
Abstract: A seed planting device comprising a generally flat strip (1) pointed at one end for insertion into the ground with a seed (3) mounted on the underside of a tongue (7) bent outwardly from the plane of the strip.
Patent GB-2053105-A (GB)
Title: Vehicle posture control system using hydropneumatic suspension units
IPC: B60G17/033
Filed: 1980-05-02
Abstract: A vehicle posture control system for a road vehicle, comprising first and second hydropneumatic suspension units (A and B) each of which has a piston rod (1, 1a) defining a fluid pressure operating chamber (21) which is in communication with a pressure storing chamber (14, 14a), and an aperture (26, 26a) which is openable to the fluid pressure operating chamber (21) in response to the movement of the piston rod (1, 1a), and a valve (33, 33a) disposed between the aperture and the fluid storing chamber (13) of the first hydropneumatic suspension unit (A) and being closable to block communication therebetween in response to the pressure within the pressure storing chamber (14a) of the second hydropneumatic suspension unit (B), thereby attaining a desirable vehicle posture without noticeable inclination of a vehicle body even during turning of the vehicle to the right or left. <IMAGE>
Patent GB-2056018-A (GB)
Title: Rollers
IPC: D06F45/22
Filed: 1980-06-11
Abstract: A squeeze roller for washing or fulling machines comprising a roller body 2 and a cover portion 3, wherein the cover portion is made of a composite material of fibres or yarns 4 of a synthetic high-polymer material and a synthetic resin fixing composition 5, wherein the fibres or yarns are so arranged that at least some of the ends 6 thereof project from the fixing composition in the manner of a nap, and wherein the fibres have a greater abrasion resistance than the fixing composition. <IMAGE>
Patent GB-2079644-A (GB)
Title: Setting a gemstone in the correct orientation, and apparatus and dop holder therefor
IPC: B28D5/00
Filed: 1980-07-15
Abstract: In order to be able to preset a gemstone such as a diamond 14 as regards axial position and orientation, for instance for a sawing operation, a setting apparatus is used having a support 2 for a dop 3, a loupe 9, a beam splitter 11 and a graticule 12 whose image is superimposed by the beam splitter 11 on the image of the stone 14, the support 2, loupe 9, beam splitter 11 and graticule 12 being fixed with respect to each other. A special dop holder can be provided for transferring the stone 14 from the setting apparatus to a machine for working the stone 14 and keeping the stone 14 correctly orientated and positioned. The holder has a first, fixing part 41 for quick fixing, a second part or sleeve 44 for holding the dop 3, which sleeve 44 can be tilted with respect to the part 41, a spring 50 for applying frictional resistance of the tilting movement and a single clamping means or nut 46 for clamping the dop 3 with respect to the sleeve 44 and clamping the sleeve 44 with respect to the part 41. <IMAGE>
Patent GB-2079734-A (GB)
Title: Beneficiation of iron oxide ore
IPC: C01G49/06
Filed: 1980-07-17
Abstract: A chlorine source is provided in a reactor in combination with a ground iron oxide ore and a particulate carbonaceous reductant. The amount of chlorine provided (<15 wt% of the ore) is significantly less than the stoichiometric requirements for reaction with the total iron content of the ore; the amount of the reductant is greater than that required to effect the reduction of the total iron content of the ore. The reactor is operative to retain the reaction gases in intimate contact with the feedstock mixture without significant dilution of said gases in order to provide a reducing atmosphere. The mixture is indirectly heated to a temperature not exceeding 950 DEG C, preferably in the range 700 - 950 DEG C, and the mixture is retained in the reactor for a period of time sufficient to cause the major portion of the iron to be transported out of the ore and to be deposited on or near the solid reductant and form discrete metal particles. These particles can be separated from the gangue minerals, for example by magnetic separation, to provide a high yield - high quality iron concentrate.
Patent GB-2055134-A (GB)
Title: Panel assembly and a method of constructing said assembly
IPC: E06B3/72
Filed: 1980-07-25
Abstract: The present invention relates to a panel assembly for use as a door or as a section of a wall and provides a preformed fixed frame accurately defining an aperture for an in-fill panel. The fixed frame is located in a main framework which is constructed around the fixed frame. Subsequently selected in-fill panel or panels can be located in the fixed frame and completion frames are used to secure the in-fill panels in the fixed frame to complete the door or wall section.
Patent GB-2054375-A (GB)
Title: Stable benzoyl peroxide composition
IPC: A61K31/78
Filed: 1980-07-25
Abstract: Therapeutic alcoholic gel compositions for treating acne containing micronized benzoyl peroxide and dioctyl sodium sulfosuccinate having greater shelf life and stability.
Patent GB-2082380-A (GB)
Title: Injection laser
IPC: H01S5/028
Filed: 1980-08-18
Abstract: A semiconductor injection laser with a stripe active region (13a) is provided with a quarter wavelength anti-reflection layer (22) of alumina on one reflecting facet to broaden the spectral emission, increase the range of single fundamental transverse mode operation, and reduce the spread on the far-field pattern. The other facet may have a protective half-wavelength coating. <IMAGE>
Patent GB-2058065-A (GB)
Title: Pesticidal isovaleric acid derivatives
IPC: A01N37/10
Filed: 1980-08-28
Abstract: Isovaleric acid derivatives having the formula   <IMAGE> wherein X is phenyl substituted with halogen, lower alkyl, lower haloalkyl, lower haloalkoxy, 3,4-methylenedioxy or nitro group, naphthyl, styryl or lower alkenyl substituted with chlorine; R1 is hydrogen, cyano or ethynyl; R2 is hydrogen, lower alkyl, lower alkenyl or lower alkynyl; and Y is phenyl or halophenyl, possess insecticidal and acaricidal properties.
Patent GB-2061932-A (GB)
Title: Piperidine derivatives
IPC: C07D417/14
Filed: 1980-10-21
Abstract: Compounds of formula   <IMAGE>  wherein Y represents   <IMAGE> Z and Z<1> independently represent   <IMAGE> Z may also represent -CH2-, -(CH2)2-, CHMe-, or -CMe2-; R<1> and R<2> independently represent hydrogen or substituents selected from halogen, loweralkoxy, nitro, amino, lower alkylamino, trifluoromethyl, hydroxy, aryl lower alkoxy and lower alkyl; or R<1> and R<2> when adjacent together with the carbon atoms to which they are attached form a six membered carbocyclic ring; R<3> represents hydrogen, halogen, lower alkyl or lower alkoxy, R<4> represents lower alkyl or hydrogen;  alpha  and  beta  each represent hydrogen or a direct bond between the carbon atoms to which they are attached; and acid addition and quarternary ammonium salts thereof possess action on the cardiovascular system. The "lower" groups contain up to six carbon atoms.
Patent GB-2069892-A (GB)
Title: Apparatus for mechanically deburring metal sheets
IPC: B24B9/00
Filed: 1980-12-30
Abstract: An apparatus for mechanically deburring metal sheets (307) comprising a housing and a rotating brush (301) constituting the deburring tool partially projecting from the housing, a support plate (303) and guide (332) being arranged in front of the housing. The support plate (303) is formed by parallel rollers (331) and the guide (332) for the edge of the metal sheet to be deburred has an aperture (333) for the brush (301). Vertical guide rollers (341) are provided on each side of the aperture (333). A holding-down plate (305) is adjustably mounted above the support plate. <IMAGE>
Patent GB-2069427-A (GB)
Title: Aircraft powerplant housings
IPC: B64D29/02
Filed: 1981-02-12
Abstract: A powerplant housing assembly 2 for mounting a powerplant 1 on a part of an aircraft body which assembly comprises a main body portion 3, and a ducted extension body portion 30 pivotally attached at 11 to the main body portion 3. The main body portion has a longitudinal bore adapted to receive a powerplant 1 and guide means 22/20 which guide the powerplant into and out of the bore. The ducted extension body portion 30 may be pivoted from a position in which it blends with the main body portion 3 to the position shown to allow the insertion of a powerplant into the bore. Guide means 22/20 comprises rollers 22 on the powerplant into the bore. Guide means the inside of body portion 3. The whole assembly may pivot about 16 for thrust restoring in V/STOL aircraft. In this case, a lip portion (Fig. 1, not shown) at the front of the extension body 30 may be tilted downwards to align it with the free stream when the assembly is tilted. <IMAGE>
Patent GB-2076929-A (GB)
Title: Converting rotary to linear motion
IPC: F16H19/00
Filed: 1981-05-06
Abstract: A traversing unit comprises a shaft 42 rotatably mounted in plain bearings 46 and 47 in a housing 41. The housing 41 houses three rings 43, 44 and 45 in contact with the shaft 42 and respectively rotationally supported in ball races 51, 52 and 53 through balls 54, 55 and 56. The rings 43 to 45 may be loaded via a mounted plate 69 comprising bearing-66 to 68 which receive corresponding pins 58, 60 and 62 integrally formed with respective races 51 to 53. This plate 69 is located axially of the shaft 42 by dowels 72 and 73 which are free to move at right angles to the shaft 42. Excess loads caused by reversal torques on the housing 41 when the direction of traverse of the rings is reversed during operation of the unit with the shaft 42 rotating and the rings 43 to 45 loaded are reduced and transferred to bearings 46 and 47 permitting higher loads to be used on the rings43 to 45 and maintenance problems to be reduced as compared with known traversing units.
Patent GB-2076892-A (GB)
Title: Ignition circuit for an internal combustion engine
IPC: F02P15/12
Filed: 1981-05-06
Abstract: The ignition circuit includes a cold start unit (A) having an oscillator which develops a direct voltage at its output (1) higher than the prevailing voltage of the battery (G). The oscillator supplies the increased voltage only during operation of the starter (F) when a positive potential is applied to a control input (3) via a connection to the starter solenoid (E,H). The oscillator has a transformer coupled output which also provides a d.c. path between its supply input (2) and the output (1) for normal unboosted current supply to the ignition coil (B) after the engine has been started. Conversion of a conventional ignition circuit is achieved simply by inserting the unit (A) between the ignition switch (D) and the coil (B) and making the control input connection to the starter solenoid (E,H). <IMAGE>
Patent GB-2077276-A (GB)
Title: High Solids Acrylic Dispersion Lacquer
IPC: C08F2/18
Filed: 1981-06-05
Abstract: A high solids acrylic dispersion lacquer coating composition useful as an exterior finish for automobiles and trucks comprises an acrylic polymer binder content of 25-45% by weight in a non-aqueous medium; wherein the acrylic polymer is a blend of   (1) Polymer A of methyl methacrylate and a polymerized monomer of allyl methacrylate, alkyl amino alkyl methacrylate or mixtures thereof; (2) Copolymer B of methyl methacrylate and an alkyl acrylate having 6-12 carbon atoms in the alkyl group; and (3) A graft copolymer of Polymer A which forms a backbone of the graft copolymer and Copolymer B attached to the backbone which forms side chains of the graft copolymer; and wherein the non-aqueous medium is a blend of   (a) an aliphatic solvent which at 25 DEG C is a non-solvent for Polymer A and a solvent for Copolymer B; and   (b) a coalescing solvent for the binder.   a
Patent GB-2083324-A (GB)
Title: Data display system
IPC: G01D7/00
Filed: 1981-06-11
Abstract: A display system capable of providing a pictorial representation of information derived from nonvideo type sensors. A ring-like array of sensors 10 are arranged internally of e.g. a pipe 11 and can move axially. The readings obtained from the sensors via a selector 18 and multiplexer 12 may be updated as they move along the pipe and those readings are manipulated by controlling the frame store 14 addressing so that each array reading is converted into a format equivalent to lines of video information and on inserting T.V. synchronising information allows the data to be displayed on a monitor 17 as if it were video information. Modification of the addressing by a line modifier 29 causes the information to move down the screen to simulate the movement of the sensors through the pipe, whereby a moving planar image is obtained from the ring like array of sensors. <IMAGE>
Patent GB-2103183-A (GB)
Title: A joint for components of a tumble bin
Inventor: FOX CLIFFORD ROYSTON
IPC: F16B5/06
Filed: 1981-08-06
Abstract: In joining two edges (14 and 18) of a sheet or sheets (10 and 12) of a stiff material, the or each sheet (10 and 12) is doubled-back on itself along each edge to be joined and each double-back portion is inserted between the double-back portion and the adjacent sheet portion of the other edge so that the edges (14 and 18) are mutually hooked together, those edges being held in that manner by, for example, ratchet rivets (22) at the joint. <IMAGE>
Patent GB-2083825-A (GB)
Title: Biologically-active composites
IPC: B01J20/28
Filed: 1981-09-02
Abstract: A method is disclosed for the preparation of a composite containing an active material which comprises applying an active material composition of selected rheological properties to a support material and then providing a cover for the active material composition in the form of a permeable membrane. The active material may be, for example, a biologically active species or a material capable of selectively retaining chemical species from a fluid.
Patent GB-2106309-A (GB)
Title: Cyclic turning of magnetrons
Inventor: PICKERING ALAN HUGH
IPC: H01J25/55
Filed: 1981-09-08
Abstract: A co-axial magnetron is provided with a cavity whose resonant frequency can be very rapidly altered in a cyclic manner so that the microwave output frequency of the magnetron can be chosen to lie within the available frequency band of the cavity. The cylindrical walls of the co-axial resonant cavity are constituted by or coupled to the inner surfaces of one or more tuning forks which are maintained in vibration by externally mounted electro-magnetic transducers. As the tines of the tuning forks vibrate, the effect is to cyclically increase and decrease the effective diameter of the cavity, thereby changing its resonant frequency. An adjustable end plate can be provided for the cavity so that fine tuning or slow rate tuning can be provided in addition to the frequency agility provided by the tuning fork.
Patent GB-2112122-A (GB)
Title: Improvements in and relating to valve mechanisms for pressurised containers
Inventor: WILCOX ALBERT EDWARD
IPC: F17C13/04
Filed: 1981-10-23
Abstract: A valve assembly for containers containing a pressurised fluid e.g. a gas, said container including a threaded boss 1 for coupling the container to an appliance supplied from the contents of the container, and a valve mechanism (8, 10) located within a valve housing (6), the housing (6) being located within an insert (3) securely fixed within the boss (1) and opposite an aperture (11) therein, a sealing ring (9) is located between the insert (3) and the valve housing (6) adjacent the aperture (11) such as normally to inhibit egress of the contents of the container, the insert (3) providing reinforcement as the part of the container where damage may occur. <IMAGE>
Patent GB-2113349-A (GB)
Title: Universal joints
Inventor: TOWNEND GORDON HOWARD
IPC: F16D3/72
Filed: 1982-01-14
Abstract: A constant velocity universal joint comprises an input element (10) connected to an output element (11) through the intermediary of a torque transmitting member in the form of a bellows (20) made of flexible filamentary material reinforced by a binder capable of accommodating elastically the strain resulting from angular displacement between the axes of rotation of the input and output elements (10 and 11). The joint is preferably made by a method which comprises forming the bellows (20) by applying filamentary material about an internal bellows shaping former and applying a flowable but settable reinforcing binder to the filamentary material. The former may be made of corrugated flexible material, subjected to internal fluid pressure while the filamentary material is wound onto it and left inside the bellows after formation. The bellows may comprise a plurality of interconnected disc-like elements. <IMAGE>
Patent GB-2114810-A (GB)
Title: Electro-mechanical switches
Inventor: JACKSON THOMAS MEIRION
IPC: H03K17/96
Filed: 1982-02-11
Abstract: A switch for detecting position comprises a movable member 15, partially constrained by tethers 19, 21, and connected to a base 11 through a semiconductor leaf hinge 18 containing doped piezo-resistive strain gauge areas R1 to R4. The strain gauge areas may control a switching circuit that provides a discrete output dependent on the relative positions of movable member and base. In alternative embodiments both movable member and base member may be 'T' shaped, or the base member may be in the form of a closed rectangular loop with the movable member disposed within the loop and connected to one end of the interior of the loop by a hinge and to the other end by a tether. The tethers may be prestrained to provide the hinge with bistable mechanical stability. The switch may be formed by etching from a single silicon wafer, and may be protected by resilient part 23 which yields upon excess movement of the member 15. <IMAGE>
Patent GB-2105190-A (GB)
Title: Light-screen compositions
Inventor: OCHSNER PAUL ALBERT
IPC: A61Q17/00
Filed: 1982-07-21
Abstract: Light-screen compositions contain a compound of the formula:   <IMAGE> wherein R1 is hydrogen or C1-3-alkyl, R<2> is hydrogen or C1-7-alkyl, X is (-CH2)n or (-CH2OCH2-)p and m = 1-5, n = 0-4, and p = 1-3, in dissolved or dispersed form.
Patent GB-2111854-A (GB)
Title: An apparatus for the thermal protection of a filtering unit
Inventor: SVATOS VACLAV
IPC: B01D46/42
Filed: 1982-10-25
Abstract: An apparatus for the thermal protection of a filtering unit for filtering dust laden hot air, the unit comprising a filtering chamber (30) containing a filtering medium damageable by excessive temperature. The filtering chamber has an outlet, communicating through a suction pipe (31), via a suction valve (32), with a suction fan (33), and an inlet, communicating, via a hot-air pipe (22) closable at its outlet end by a protective valve (25) with the outlet of a source of dust laden hot air. The hot-air pipe is provided with two spaced apart thermometers (23,24). A closable bypass pipe (50) is provided between the suction pipe and the hot-air pipe. <IMAGE>
Patent GB-2109261-A (GB)
Title: Equipment and method for filtration
Inventor: GRAHAM DAVID ERIC
IPC: B01D39/16
Filed: 1982-11-09
Abstract: A backwashable filter element consists essentially of a fabric of polyacrylonitrile fibres wherein the diameter of the fibres is in the range 10 to 50 microns and the density of the element is in the range 0.05 to 50 g/cc. The element may be tubular. The element is suitable for use in filtering sea water, particularly for sea water injected into petroleum reservoirs to assist in the recovery of crude oil, or for removing oil from sea water. <IMAGE>