baber/WOPTO huggingface dataset:
Patent GB-2050010-A (GB)
Title: Control of polyphase electrical loads
IPC: G05F1/455
Filed: 1980-05-07
Abstract: A three phase induction motor 10 has a triac 12 in each phase, controlled by a respective conducting angle determining unit 26 so as to be turned on for a part only of the a.c. cycle. An integrator 46 for each phase produces an analogue voltage depending on the conducting angle in that phase. These are compared in comparators 50 whose outputs 54 are fed back to phases R and B to reduce any differences in conducting angles between the phases. An error differentiator 56 produces an output 58 depending on the mean of outputs 60 from the comparators 50, which controls a reference phase Y. This gives more balanced operation of the motor. <IMAGE>
Patent GB-2052025-A (GB)
Title: Laser Sight for Firearms
IPC: F41G1/35
Filed: 1980-06-06
Abstract: The sight comprises essentially a case 23 of straight parallelepipedic shape containing a voltage supply source in a first compartment 39 and a laser 40 in a second compartment. The case is closed at the front by a detachable cover 26 and at the back by a cover 33 containing an electronic voltage conversion circuit, which is constructed in a compact manner and comprises external contact terminals. All the component parts are assembled in the case 23 and are connected electrically by simple contact, without wiring or soldering. <IMAGE>
Patent GB-2054436-A (GB)
Title: Electrical discharge machining using controlled low stray capacitances
IPC: B23H1/02
Filed: 1980-07-24
Abstract: In an EDM method and apparatus wherein a solid-state switching type EDM generator (3) provides a succession of machining current pulses across a machining gap (G) formed between the electrodes 1, 2 when flooded with a liquid dielectric, preferably a distilled or weakly conductive water, through a gap discharge circuit (4a, 5a, 5, 1,2, 6, 6a, 4b), the total value of stray capacitances in the gap discharge circuit is limited to be no greater than 0.01 microfarad, being preferably at most 0.005, and even more preferred at most 0.001 microfarad. Thus the magnitude of a peak current produced at the leading edge of each individual machining current pulse by the discharge of the stray capacitances is controlled. This peak current is preferably sensed and discriminated to provide a control signal which acts on the DC power supply to control the output voltage thereof so that the magnitude of the initial peak current may be maintained substantially constant, irrespective of changes in the stray capacitance in the gap discharge circuit during a given course of machining operations. <IMAGE>
Patent GB-2087707-A (GB)
Title: Shoe repairing
IPC: A43B23/22
Filed: 1980-10-03
Abstract: A method of repairing a shoe having a broken or damaged shoe shank comprises inserting a shank (16) mounted on a fibreboard (12) into the inner foot cavity of the shoe and stapling and mailing the fibreboard to the heel and sole of the shoe. <IMAGE>
Patent GB-2088244-A (GB)
Title: Discharging dust from air filter
IPC: B01D46/48
Filed: 1980-11-27
Abstract: Dust which is blown or shaken from filter bags 1 falls on to porous floor 3, through which air is blown so that the dust slides past valve 4A into vessel 4. Periodically valve 4A is closed and air delivered to chamber 4B fluidises the contents of vessel 4 and conveys them up pipe 4C to large bunker 4D. In Fig. 3 (not shown) two parallel filters comprising outward- flow, open ended filter tubes act in sequence. The various valves are actuated by rams at regular intervals determined by respective cams gear to the air-compressor drive shaft. <IMAGE>
Patent GB-2064575-A (GB)
Title: Powdered carpet cleaner
IPC: C11D17/06
Filed: 1980-12-02
Abstract: A pulverulent composition for rug and carpet maintenance and cleaning formed by mixing from about 40.0 to 98.5% by weight of borax containing carrier with about 1.5 to 20% by weight of a primary cleaning system comprising from about 1.0 to 10% by weight of an ether alcohol cleaning solvent and from about 0.5 to 10.0% by weight of a surfactant, substantially all of the particles of said composition having a diameter of between 0.06 to 0.44 mm. The composition may contain further ingredients such as an antistatic agent and a fragrance and will be applied by distributing over the carpet surface and into the carpets fibers and by removing after a time sufficient to loosen and solubilize the dirt thereon.
Patent GB-2074955-A (GB)
Title: Run-flat tyre and wheel assemblies
IPC: B60C17/10
Filed: 1981-03-31
Abstract: A pneumatic tyre and rim assembly comprises a radial belted tyre (2) mounted on a flat- or well- base rim (10), a pneumatic emergency support means (20) for bearing the load when the tyre is punctured, and a lubricant layer (18) for reducing friction between the tyre and support means when running deflated. The support means (20) has a support surface element (22) made of fabric, e.g. aromatic polyamide cord fabric, which is reinforced by a layer (23) of plastics material or synthetic resin, e.g. polyurethane, polyester or epoxy resin. The layer (18) comprises a gel formed predominantly of polyglycol and having roller body particles, e.g. of rubber powder and/or glass or plastics beads, contained therein. The layer (18) is arranged on the inside surface (9) of the tyre to cover at least that part of the surface (9) in the tread region. <IMAGE>
Patent GB-2079598-A (GB)
Title: Picture frame
IPC: A47G1/06
Filed: 1981-04-01
Abstract: A picture frame which can be assembled easily without using a driver and metal fastenings comprises two boards 1 and 2 at least one of which is transparent, between which a photograph, a picture in watercolours or the like is placed. The boards are gripped firmly at their four side edges by four frame pieces 3 made of synthetic resin due to the inherent resilience of the material. The frame pieces 3 have mitred ends to provide butted corners and longitudinal grooves 3a which receive the sides of the boards. In modification, a picture mounted on a suitably thick board can be framed by the pieces 3. <IMAGE>
Patent GB-2088724-A (GB)
Title: Endoprosthetic bone joint device
IPC: A61F2/38
Filed: 1981-11-26
Abstract: An endoprosthetic bone joint, for example a knee joint, has a first and second component (1, 2) with convexly and concavely curved interengaging surfaces, the components being interconnected by a linkage member (5) which has an enlarged head (32) captively located in a cavity (23) in the first component. The cavity (23), which is preferably formed in a plastics insert (20) in the first component (1) has an elongate shape, straight or curved, which through a camming action causes flexion of the joint to be accompanied by a rearward sliding movement of the first component on the second component, increasing the range of permitted flexion of the joint. <IMAGE>
Patent GB-2090152-A (GB)
Title: Filter
IPC: B01D29/00
Filed: 1981-12-10
Abstract: An upward flow filter comprises a vessel whose wall 14 has secured thereto a peripheral frame 10, above which are located projecting lips (16, Fig. 2 not shown). A flat filter module 18 is removably secured to frame 10 by ties 28 and retained thereon by the lips (16) against the upward flow of liquid. The module comprises a frame over which is stretched a sack made of polyester mesh 23, so that the liquid is filtered through two sheets of mesh in series. Felt strips 27 are sewn to the mesh to act as seals. The frame 10 and the frame of the module are made of plastics tubing. When dirty the module 18 is lifted from the vessel, washed and replaced. <IMAGE>
Patent GB-2115241-A (GB)
Title: Heated window assembly
Inventor: WESTBROOK MICHAEL HEREWARD
IPC: H05B3/84
Filed: 1982-02-22
Abstract: A heated window assembly e.g. for a motor vehicle, comprises an array of heating elements (2) through which electrical current may be passed from a source of electrical energy (5). The supply of electrical energy to the heating elements is periodically interrupted e.g. as a result of the application of signals from a square-wave generator circuit (8) to the base of a transistor switch (7) in series with the heating elements (2) so that the power consumption of the elements (2) is reduced. The operation is controlled by a timer (9) which allows full-power consumption for an initial period. <IMAGE>
Patent GB-2102708-A (GB)
Title: Process for producing coin blanks
Inventor: RUSCOE MICHAEL J H
IPC: B23P15/00
Filed: 1982-07-19
Abstract: A process for producing blanks suitable for minting into coins includes providing a plurality of appropriately disc-shaped metallic cores, heating the cores to decrease their hardness to less than about 65 of the Rockwell 30T hardness scale, and cooling the heated cores to provide cooled cores with a hardness less than about 65 on the Rockwell 30T hardness scale. A plurality of cooled cores are loaded into an electrically non-conducting perforated container, which is then placed in an electroplating bath. A metallic cladding is electroplated onto the cores, while moving the container angularly about a horizontal axis, until a plating thickness of at least about 0.01 mm has been deposited on each face of each core and a thickness of from about 2 to about 4 times the face thickness has been deposited on the circumference of each core. The cladded core pieces are then removed from the container.
Patent GB-2128649-A (GB)
Title: Barriers with alarm device
Inventor: GIDDINGS BARRYMORE GEORGE
IPC: G08B13/20
Filed: 1982-10-06
Abstract: A barrier 10 comprises top and bottom beams 12, 14 and stretcher bars 16 all formed of tubular materials and inter-communicating to provide an interior fluid-tight chamber 20 extending throughout the structure of the barrier. The chamber is sealed and pressurised with air via a gas admission valve 32. A sensor 26 is responsive to pressure changes within chamber 20 and is arranged to energise an alarm 30 when pressure falls, whereby the alarm is actuated by cutting or bending the barrier. <IMAGE>
Patent GB-2113413-A (GB)
Title: Eleotrophotographic toner
Inventor: ALEXANDRU LUPU
IPC: G03G9/097
Filed: 1983-01-07
Abstract: A xerographic toner comprises a resinous binder having dispersed therein a crystalline plasticizer for said resin and a thermally conductive material. The thermally conductive material may serve as the only colorant. The toner is particularly well suited for use in xerographic processes and devices which provide copies at a high rate of speed or in xerographic processes and devices wherein low fusing energy is desired. A significant change in melt viscosity of resinous toner particles is achieved. Suitable resins are vinyl resins or styrene/methacrylate copolymers. The conductive material may be iron oxide and the plasticizer may be diphenylisophthalate.
Patent GB-2119251-A (GB)
Title: Pressurised aerosol formulation
Inventor: LORD BRIAN KENNETH
IPC: A01N53/00
Filed: 1983-04-27
Abstract: There is described a pressurised aerosol formulation comprising permethrin, a hydrocarbon propellant, an aliphatic hydrocarbon solvent in which permethrin is soluble, a sorbitol ester, a polyethylene glycol oleate and water. Formulations according to the invention may be used for pest control in the garden or in the home, and are for amateur or commercial use.
Patent GB-2126664-A (GB)
Title: Delivery valve
Inventor: WORBY DONALD
IPC: F02M59/46
Filed: 1983-08-09
Abstract: A delivery valve for use with a fuel injection pump includes first and second valve members 15, 23 resiliently biased into contact with seatings. The seating 17 for the first valve member is formed in a supporting body but the seating of the second valve member is defined on the first valve member. The second valve member and its seating are arranged so that the impact of the first valve member with its seating acts to urge the second valve member into contact with its seating. <IMAGE>
Patent GB-2149062-A (GB)
Title: Improved cardiac valve
Inventor: BODNAR ENDRE
IPC: A61F2/24
Filed: 1983-09-08
Abstract: A bioprosthetic replacement valve in which a bilogical part comprising a natural aortic or pulmonary valve of human or animal origin in employed as a cusped valve member 5, and which includes an outflow orifice, the arrangement being such that those parts of the orifice which are likely to come into periodic contact with the cusped member comprise biomaterial comprised either of an extension 8 of the cusped valve member or as a separate member. <IMAGE>
Patent GB-2152689-A (GB)
Title: Optical fibre sensing apparatus
Inventor: HENNING MICHAEL LAURENCE
IPC: G01J9/02
Filed: 1984-01-11
Abstract: An interferometer comprises a laser (21) which generates coherent light pulses and launches them via a first optical fibre to an optical switch (23). The optical switch (23) is arranged to provide selected connections between the first optical fibre and/or a second optical fibre (24) and a third optical fibre connected to the switch thereby enabling selective routing of predetermined optical pulses between predetermined optical fibres according to requirements. The optical switch (23) may be in the form of an integrated cross-over optical switch or a Bragg cell. <IMAGE>
Patent GB-2135288-A (GB)
Title: Container for beverage cartons
Inventor: HERBERT JOHN
IPC: B65D25/42
Filed: 1984-01-24
Abstract: A container 1 for milk or fruit juice carton 11 is adapted to enclose the carton (11, Fig. 3) totally and means 10 to pierce the top of the carton. This means 10 is in communication with a pre- formed pouring spout 12 on the top of the container 1. There may be a second piercing means 9 to provide an air vent for the carton, to assist in smooth flow of the carton contents during pouring. <IMAGE>
Patent GB-2137918-A (GB)
Title: A Device for Removing Scrap
Inventor: PERINI FABIO
IPC: B65H35/00
Filed: 1984-03-19
Abstract: A device for removing scrap ends (Rx, Ry, Fig. 4) or trimmings from cylinders B of paper cut into rolls R for toilet paper or the like by a cutter (L, Fig. 4) wherein, the rolls are advanced in their axial direction between a lower bearing guide 5 on one side and upper lugs 40 supporting each roll R and moving with the rolls R. The lugs 40 are regularly spaced to cooperate with rolls and a gap 40X is provided to coincide with the ends of the cylinders where the trimmings Rx, Ry are present, so that the trimmings Rx, Ry are unsupported and fall away from the guide 5. <IMAGE>
Patent GB-2145597-A (GB)
Title: Space vehicle attitude sensor
Inventor: KUNKEL BERND
IPC: B64G1/24
Filed: 1984-08-21
Abstract: The device, which is mounted on a space vehicle, comprises parallel rows of detectors 1, 2, 3 consisting of individual detector elements 11, 12, 13. By means of a suitable optical system an image of an object (e.g. the earth) is projected onto the rows of detectors 1, 2, 3. If the image is found to impinge on sensor 11', a block 8 of adjoining detector elements (e.g. 11'') is observed for variations in outputs, which are indicative of movement of the space vehicle. <IMAGE>
Patent GB-2147337-A (GB)
Title: Running and retrieving well tools
Inventor: AKKERMAN NEIL HOOVER
IPC: E21B23/02
Filed: 1984-08-31
Abstract: There is disclosed well apparatus including a wire line running tool assembly 48, 49 on which a well tool 21 may be lowered into a well conduit 20, and then locked within the well conduit, and released from the assembly 48, 49, when it is so locked, in response to manipulation of the wire line, whereby the assembly 48, 49 may be retrieved. <IMAGE>
Patent GB-2148414-A (GB)
Title: Labyrinth packing
Inventor: TORNARE JEAN
IPC: F16J15/44
Filed: 1984-10-16
Abstract: As a special feature the labyrinth packing has axially displaceable, co-rotating packing rings (4), which are sealed against the shaft or sleeve (1) by means of a cap-like gasket (5). Thus, the co-rotating packing rings can be automatically adjusted in the annular gap. However, this would mean that they would be forced against one side of the gap by the overpressure, which is to be avoided. This is achieved in that on the low pressure sealing surface chambers (43) are formed, which are connected via bores (44) with the overpressure side. The medium against which sealing is to take place consequently passes through these bores into the chambers and a centrifugal action builds up a pressure acting counter to the overpressure, so that rings (4) "float" in the annular gap. <IMAGE>
Patent GB-2168787-A (GB)
Title: Improvements in or relating to valve actuators
Inventor: MIDDLETON LAWRENCE JAMES
IPC: F16K31/46
Filed: 1984-12-21
Abstract: An actuator for a valve member in a housing including a non-circular outer surface 20 has an adaptor 55 with a bore conforming in part to the surface 20. A releasable bayonet connection 60, 57 connects the adaptor to a holder for a non-circular socket 52 cooperable with a non-circular valve-operating element 19. A releasable clamp 70, 74, 75 holds the adaptor to the housing and prevents engagement of the bayonet connection until the clamp is engaged. The holder is connected through a drive connection including universal couplings to a pneumatic actuator for rotating the valve member. The valve may be used to supply uranium hexafluoride to containers. <IMAGE>
Patent GB-2168746-A (GB)
Title: Security devices for clothing
Inventor: STRINGER DAVID
IPC: E05B69/00
Filed: 1984-12-22
Abstract: A pair or jaws 2 and 3 of a security device 1 are clamped about a garment on a hanger, the hanger passing through the space 16 between the jaws 2, 3. Clamping surfaces 4 and 5 of the jaws 2 and 3 are clamped against the garment and locked by means of a pawl mounted on one jaw engaging ratchet teeth 12 on the other jaw. However, the jaws 2, 3 may be released readily by inserting a key into a boss 15, to retract the pawl and thus free the jaws. A chain 9 and ring 10 secure the clamp to a clothes rail 11. <IMAGE>
Patent GB-2155929-A (GB)
Title: Production of an acetyl compound
Inventor: FUJIWA TAKAAKI
IPC: C07C53/12
Filed: 1985-03-22
Abstract: A process for producing an O-acetyl compound by carbonylating an O-methyl compound with carbon monoxide in the presence of a rhodium catalyst and a compound of halogen, comprising   (i) separating the reaction mixture formed in the carbonylation reaction step into a volatile component and a rhodium-containing catalyst solution, (ii) heat-treating the separated catalyst solution in the presence of a hydrogen-containing gas, and (iii) recirculating the hydrogenated catalyst solution to the carbonylation reaction step. O
Patent GB-2156387-A (GB)
Title: Cutting tool and method of manufacture thereof
Inventor: GAVRILOV ALEXEI GEORGIEVICH
IPC: C23C14/24
Filed: 1983-08-25
Abstract: A coating (3) is deposited on a substrate (1) of a cutting tool and contains a refractory metal compound of the group of C, N, O, B, Si elements with microcrystals incorporated therein, which compound is produced by heating by means of metal ion bombardment with the simultaneous inlet of a gas reagent containing the elements from the group of C, N, B, O, Si. The heating is effected up to a temperature, which is 100<o>C less than the temperature at which the loss of strength of the substrate takes place, and which is maintained in the range from said temperature to +50<o>C. A pressure of the gas reagent is adjusted simultaneously in the range of 13.33 to 13.33 x 10<-2>Pa. A maximum number of the microcrystals have such an orientation that the same crystallographic plane (4) thereof is parallel to the substrate (1).
Patent GB-2176026-A (GB)
Title: A method of and apparatus for dosing a material
Inventor: WOODWARD ALAN
IPC: G05D11/13
Filed: 1985-05-31
Abstract: An additive 15 from a supply tank 16 is pumped along line 18 into a feed line 8, e.g. for boiler feed water, which has passed a flow rate sensor 5 and a temperature sensor 6. A dosing controller 9 controls the rate of introduction resulting from operation of the dosing pump 14, in direct proportion to the signal from the flow rate sensor 5 and in inverse proportion to the signal from the temperature sensor 6. <IMAGE>
Patent GB-2177252-A (GB)
Title: Cathode ray tube mounting assembly
Inventor: HARTT PETER
IPC: H04N5/645
Filed: 1985-06-27
Abstract: A cathode ray tube mounting assembly comprising at least one mounting block arranged for positioning over and implosion protection band of the cathode ray tube and, when arranged over the implosion protection band, provides a cavity between a surface of the mounting block and an outer surface of the cathode ray tube for receiving an adhesive compound, and wherein the mounting block is adapted to secure on one side thereof a surround for the screen of the cathode ray tube and on the other side thereof to receive fixing means for securing the cathode ray tube to a support chassis.
Patent GB-2162322-A (GB)
Title: Force transducer
IPC: G01G3/14
Filed: 1985-07-22
Abstract: A force transducer used more particularly in weighing cells comprises a cylindrical compression member (1), whose end faces (2,3) are acted upon by the force (4) to be detected. It has slotted blind holes (5,6) extending longitudinally of the direction of force and arranged opposite each other, whose bottom surfaces (7,8) constitute a bridge, on which is provided strain gauges (10-13) extending longitudinally and transversely of the direction of force. In order to be able to adjust accurately the sensitivity and hence the linear measuring range to predetermined values, the bridge (9) has through-holes (14,15) situated before and behind the strain gauges (10-13) in the direction of force. The sensitivity of the force transducer can be increased by deepening and widening the slotted blind holes (5 and 6) and can be reduced again by increasing the diameter of the through-holes (14 and 15) and can hence be accurately adjusted to a predetermined value. <IMAGE>
Patent GB-2181693-A (GB)
Title: Improvements in and relating to power tools
Inventor: STONES KEVIN
IPC: F16H21/36
Filed: 1985-09-27
Abstract: A hand-held power saw with a housing (19) from which extends a tapering support (22) for a saw blade (23) reciprocable along the lower edge of the support by a motor (17) located in the housing (19). The motor (17) is coupled to the saw blade (23) via a driving mechanism incorporating a counterbalance device (12, 14) for counterbalancing the linear out-of-balance forces created by reciprocation of the saw blade (23) and its driving mechanism. <IMAGE>
Patent GB-2166823-A (GB)
Title: Brake pressure control valve assembly
Inventor: KOHNO TERUHISA
IPC: B60T8/26
Filed: 1985-10-17
Abstract: The assembly has an axially slidable piston 5 responsive to fluid pressures of two brake fluid lines, and a pressure reducing or proportioning valve 9 mounted in the piston 5 for reducing the pressure of one of the two brake fluid lines. If one of the lines fails, the piston moves toward the failed line to inhibit the pressure reducing or proportioning valve from reducing the pressure in the other of the two lines. A number of embodiments are illustrated and described. In Fig. 1, for example, failure of front brake line allows piston 5 to move rightward, and an O-ring 15 moves with it to no longer seal outlet 3 from inlet 2 of rear brake line whereby valve 9 is bypassed. In Fig. 5 failure of front line 2 causes a plunger 7 of reducing valve 9 to move with piston 5 so that a passage 7c will form a bypass connecting inlet 2 and outlet 3 directly. Fig. 6 shows an assembly for a diagonal split system with two lip seal proportioning valves. Testing of the assembly is discussed in the specification. <IMAGE>