baber/WOPTO huggingface dataset:
Patent GB-2030527-A (GB)
Title: Go-kart chassis
IPC: B62D21/18
Filed: 1979-08-30
Abstract: A go-kart chassis is described having front and rear sub-frames joined by at least one link member (46, 48) having a first degree of stiffness when bent in a plane containing the two central axes of the two tubes (46, 48) and a second lower degree of stiffness when bent in a plane perpendicular to the first. The members (46, 48) are terminated in cylindrical ends for fitting into sleeves (20, 22 and 44) of the respective subframes. Adjustment of the stiffness is effected by twisting the link (46, 48) until the required stiffness is obtained. If after 90 DEG  of twist insufficient change in stiffness has been achieved, the struts can be replaced with others having more or less stiffness. <IMAGE>
Patent GB-2032732-A (GB)
Title: Apparatus for and method of switching delta-modulated connections in a PCM telecommunications exchange
IPC: H04Q11/04
Filed: 1979-10-03
Abstract: To enable switching of delta- modulated connection in an exchange arranged for the switching of PCM frames, an input channel delta-modulated signal a) has its synchronising signal gated out and is then written into an intermediate store b) in equal-sized groups in respective PCM frames which are filled either by adding stuffing bits or repeating the delta bits. After switching a storage output c) distributes the delta bits in an output sequence into which the synchronizing signal is gated to form an output channel delta-modulated signal d).
Patent GB-2036654-A (GB)
Title: Buoyancy device
IPC: B63C9/28
Filed: 1979-11-22
Abstract: A buoyancy aid 10 for use in a canoe or kayak combines the functions of a conventional life jacket and of a conventional spray deck or cockpit cover, comprising a broad belt-like portion 11 for closely surrounding a wearer's torso and a skirt-like portion 14 extending outwardly from the belt-like portion 14. The skirt like portion 14 has a bouyant chamber 17 and its periphery is adapted, e.g. by being elasticated as at 19, to engage a rim surrounding the cockpit 20 of a canoe or kayak when in normal use. If the user leaves or is displaced from his canoe in water the bouyancy chamber 17 positions itself in front of his chest and assists in supporting him on the surface of the water. <IMAGE>
Patent GB-2064826-A (GB)
Title: Apparatus for controlling application of spraying fluid by spraying equipment
IPC: B05B9/06
Filed: 1979-11-28
Abstract: Apparatus for controlling application of spraying fluid by spraying equipment, particularly agricultural spraying equipment, includes a monitoring device for the dosage rate during a particular spraying operation and then comparing this actual rate with a recommended rate. If a difference is detected then the device emits an error signal indicative thereof which is used to operate a regulating device for regulating the flow rate of fluid to be sprayed or forward speed of the equipment. In this way automatic correction of the dosage rate is possible during a spraying operation. This obviates the need for operator control in response to emission of the error signals as has been heretofore necessary. The dosage rate is determined by electronically combining signals from a flow sensor 2 and a vehicle speed sensor 5. As shown, the error adjusts flow by controlling the air pressure in a diaphragm valve 6, but other control arrangements are disclosed. <IMAGE>
Patent GB-2040126-A (GB)
Title: Device for converting a digital angle information into an analog form
IPC: H03M1/00
Filed: 1979-12-04
Abstract: A device for converting binary coded angle information into the analog angular position  theta  of the rotor winding (150) of a conventional counter-reaction resolver (140). The device is operative to provide two periodic rectangular wave signals of equal amplitudes and of time durations respectively proportional to sin  theta  and cos  theta . These periodic rectangular wave signals are applied to the stator windings (121, 131) of the resolver (140) via amplifiers (120, 130). Each amplifier (120, 130) comprises a counter-reaction loop comprising a compensation winding (122, 132) and a capacitor (123, 133). The rotor winding (150) of the resolver (140) is inserted in a servocontrol loop comprising an amplifier (170) and a commutator (210) which are connected only in the simultaneous absence of the two periodic rectangular wave signals. <IMAGE>
Patent GB-2040252-A (GB)
Title: Roller for a belt conveyor
IPC: B65G39/04
Filed: 1980-01-22
Abstract: The invention relates to a roller for a belt conveyor, the roller comprising a plurality of discs (3) arranged on a flexible cord (1) which is itself supported by a core formed by a metallic cable. The flexible cord (1) carries anchorage ribs (2) for the discs (3) and wedging ribs (4) arranged to wedge the discs (3). Each anchorage rib (2) is arranged between two wedging ribs (4) such that each disc is incapable of becoming prematurely detached from the flexible cord (1). <IMAGE>
Patent GB-2047156-A (GB)
Title: Tubular thermoplastics articles manufactured to resemble wood, cane, bamboo, reed, wicker, rattan, rush, and the like
IPC: B29C48/32
Filed: 1980-02-08
Abstract: The tubular articles are used in the production of furniture, and other structures, and are formed by e.g. extrusion of a tube (20) which is formed with indentations (24), (26), (27), and is coloured and veined (30) by solvent based coating, and formed with coaxially spaced rods (25). The tubes (20) are cut to length, bent as required, and after connecting together in various ways e.g. to make a chair, are tied together by straps (32) which have been extruded from thermoplastics material, orientated, and similarly indented and coloured by coating, the orientation recovering to cause tightening of the bound straps (32). The rods (25) may be formed in the tube (20) by axial compression, or by expansion of the tube issuing from an extrusion die, into each of sequential moulds which close around and travel with the issuing tube. <IMAGE>
Patent GB-2044840-A (GB)
Title: Door closer
IPC: E05F3/10
Filed: 1980-03-12
Abstract: A door closer includes a tension member (20) acted on by spring means (26) under the control of a uni-directionally operative fluid-filled damper which serves to regulate the rate of movement of a door (D) in the direction of closure without restricting significantly the rate of movement in the direction of opening, includes a fluid by-pass (39) in the damper and operative over the final part of the closure movement to remove the restraint imposed by the damper, and means, operative when the closer is installed, to vary the point in the closure movement at which the fluid by-pass becomes operative, so as to provide compensation for variations in the installation of the closer and variations of the gap between the door and its frame. <IMAGE>
Patent GB-2047274-A (GB)
Title: Support for Lithographic Printing Plates and Process for Their Production
IPC: H05K3/44
Filed: 1980-03-28
Abstract: The support is prepared by mechanically roughening the surface of an aluminium plate, chemically etching 5 to 20 g/m<2> of aluminium from the surface of the plate, and applying an alternating wave-form electric current to the plate in an acidic aqueous solution such that the quantity of electricity generated with the plate as the anode is equal to or greater than the quantity of electricity generated with the plate as the cathode, electrolysis being carried out such that, when the plate is the anode, the current density is not less than 20 A/dm<2> and the quantity of electricity generated is 200 coulombs dm<2> or less. The support has excellent affinity for water, good water retention and printing durability is improved.
Patent GB-2052299-A (GB)
Title: Polluted fumes purification and heat recovering system, particularly for driers
IPC: B01D53/00
Filed: 1980-05-01
Abstract: A polluted fumes purifying and heat recovering system, particularly for driers, comprises a fumes outlet (3) and drying air inlet (4) of a drier (2) serially connected to each other with the interposition of two heat exchangers (5,6) and a hot air generator (9). The first (5) of the heat exchangers transfers heat from the fumes to be conditioned to the return air-flow from the second heat exchanger (6). The second heat exchanger (6) is of the water mix type and purifies, by condensation of the steam developed during the drying process, the polluted fumes. The cooling water in the second heat exchanger (6) is delivered for cooling to a third heat exchanger (7) of the water mix type. The system is powered by a thermal engine (27) the exhaust gases whereof are conveyed to the hot air generator (9). <IMAGE>
Patent GB-2058367-A (GB)
Title: Regulator Tester
IPC: G01R31/00
Filed: 1980-08-13
Abstract: Testing apparatus and method for testing a regulator for switching current to an external load device in response to applied voltage, e.g., field current of an alternator. A power delay circuit is connected across the terminals of the regulator and supplies load current to a third terminal when the regulator is turned on by charging a capacitor in the delay circuit. When the charge on the capacitor reaches a high limit, the regulator switches off and load circuitry is switched on to ramp the capacitor voltage downwardly until the regulator again switches on. The load circuitry at that time switches off. An auxiliary power supply is effective when the regulator is switched on to supply additional load current. <IMAGE>
Patent GB-2060899-A (GB)
Title: Continuous measurement of changes in the distance between measuring points
IPC: E21F17/18
Filed: 1980-10-15
Abstract: A flexible line 7 extends from the housing 1 of a position sensor arranged at one measuring point and is connected by loop 8 to the other measuring point. The line 7 is wound on a drum 6 which, through gearwheels 9, 14, 18, drives a potentiometer 20 against the load of a clock-spring 13. A voltage determined by potentiometer 20 is converted into a frequency modulated signal which is transmitted to a remote station, e.g. to monitor rock deformations in coal mining. <IMAGE>
Patent GB-2065674-A (GB)
Title: Sterically stabilised non-aqueous dispersions of styrene copolymers
IPC: C08F2/08
Filed: 1980-12-01
Abstract: The production is described of a dispersion of polymer microparticles, which may optionally be crosslinked, by dispersion polymerisation in aliphatic hydrocarbon liquid under specified conditions of a monomer mixture which comprises up to 50% of styrene or a substituted derivative thereof and up to 50% by weight of a derivative of maleic acid or fumaric acid which is soluble in the hydrocarbon liquid at the polymerization temperature. The microparticles have a size in the range 100-400 nm and a high refractive index, and are suitable for incorporation in coating compositions which are based on a film-forming polymer, such as a thermosetting acrylic resin or an alkyd resin, containing a significant proportion of aromatic residues, and which are intended to be used either unpigmented or when containing only light-absorbing pigments.
Patent GB-2065840-A (GB)
Title: Detonator
IPC: F42B1/02
Filed: 1980-12-15
Abstract: An electrical detonator unit for a shaped charge 302 comprises electrical ignition means 304b, 304a at respective ends of a tube 307 containing a detonator charge 306. At least one propagation charge 305 or 310 is located at a defined point along the tube and the means 304b, 304a are fired with appropriate time delay, if any, to produce coincidence of shock waves at the selected propagation charge 305 or 310 whereby the said charge is detonated by the Dautriche effect. Spurious ignition of one or other ignition means does not detonate the charge 310, 305. The use of two propagation charges permits the hollow charge to be fired either symmetrically or assymetrically. <IMAGE>
Patent GB-2076844-A (GB)
Title: Aqueous sizing composition comprising vinyl acetate/acrylic copolymer, and sized glass fibers
IPC: C08K9/08
Filed: 1980-12-17
Abstract: The invention concerns an improved aqueous size composition for treating glass fibers during forming to produce glass fiber strands having improved wet-out, mold conformity, and wet-through when used in gun roving application. The improved size composition substitutes an externally plasticizable vinylacetate-acrylate copolymer and external plasticizer for the same amount of polyvinylacetate homopolymer in a previously described sizing composition. The composition also contains a fatty acid (amide) lubricant, gamma (ethylene diamine) propyl trialkoxy silane, and a methacrylato chromic halide. The pH of the sizing composition is adjusted to be between 6.1 and 6.5, and the solids content between 7.0 and 7.5 weight percent.
Patent GB-2066403-A (GB)
Title: Floating pivot rocker arm
IPC: F01L1/18
Filed: 1980-12-19
Abstract: A rocker arm 5, which operates on valves 9 of an internal combustion engine, has an elongated hole 4 through which the rocker shaft 3 passes. Play is taken up by a spring loaded bucket 7 which may also take up some of the initial movement of the cam/pushrod 8 depending on the position of stop 1 which may be varied in accordance with engine conditions e.g. R.P.M. etc. A second spring loaded bucket (11) may be brought to bear on the rocker arm 5 due to movement of a piston (13) when valve lift is not sufficient (Fig 16 not shown). <IMAGE>
Patent GB-2071377-A (GB)
Title: Electronic locking system
IPC: G07C9/00
Filed: 1981-01-30
Abstract: An electronic locking system comprises a keyboard with keys selectively operable to generate a plurality of distinct input signals. Sensing means respond to a predetermined combination of the input signals to generate an output signal for rendering a device controlled by the system operative. After a predetermined number of incorrect attempts to generate the predetermined combination, counting means inhibits generation of the output signal. <IMAGE>
Patent GB-2072164-A (GB)
Title: 2%-Deoxy-3%,5%-di-O- alkylcarbonyl-5-fluorouridine derivatives, a process for the preparation of the derivatives and anti-tumor agents containing the derivatives
IPC: C07H19/06
Filed: 1981-02-12
Abstract: 2%-Deoxy-3%,5%-di-O- alkylcarbonyl-5-fluorouridine derivatives of the general formula:   <IMAGE> wherein R is an alkyl group, an alkoxy group or a halogen atom, m is zero or an integer of 1 to 3, and n is an integer of 1 to 14, with the proviso that when m is 2 or 3, the groups R may be the same or different and that when m is 2 and the adjacent two R groups, the two alkyl moieties of the alkoxy group may be combined to form together with the two adjacent oxa bridging members an alkylenedioxy group. The compounds of Formula I are useful as anti-tumor agents.
Patent GB-2094602-A (GB)
Title: Flower pot-cloche
IPC: A01G9/02
Filed: 1981-03-10
Abstract: A flower pot is formed of transparent plastics material and is usable also a cloche. A rain catchment area is provided at the top when used as a cloche and can be punctured. <IMAGE>
Patent GB-2073568-A (GB)
Title: Gathering seaweed
IPC: A01D44/00
Filed: 1981-03-31
Abstract: A vessel for gathering seaweed or other aquatic vegetation, comprises a floating assembly driven by an engine or power plant 5. The assembly comprises two floats 1, 2 which carry a platform on which a control booth and the power plant are provided. A water tunnel is defined beneath the platform and between the floats 1, 2. Means, such as propellers 8, are provided for driving water rearwardly through the tunnel. Paddle wheels 6 propel and steer the vessel. Submerged cutting means 14 cut the vegetation which is collected by net 21 which communicates with a cage (23 or 24) for receiving the cut vegetation. <IMAGE>
Patent GB-2077882-A (GB)
Title: Cup sealing rings for master cylinder pistons
IPC: F16J15/32
Filed: 1981-06-09
Abstract: Piston 6 of a brake or clutch master cylinder is provided with a cup seal 21 or 22, which has a halogenated outer surface. This reduces noise due to vibration caused by friction of the cup seal sliding within the cylinder. <IMAGE>
Patent GB-2081506-A (GB)
Title: Resin-filled groove isolation of integrated circuit elements in a semi-conductor body
IPC: H01L29/73
Filed: 1981-07-16
Abstract: Integrated circuit elements e.g. transistors, in a semi-conductor body are electrically insulated from one another by etching a groove 8 into the semi-conductor body between said elements and back-filling the groove with an insulative resin so as to present a substantially smooth supporting surface on said semi-conductor body for application of conductive material forming electrical connections 15 between said elements. Preferably the resin provides a uniform layer 11 over the surface of the semi-conductor body and, before the resin is applied, an oxide layer 2 is formed over the walls of the groove. <IMAGE>
Patent GB-2102263-A (GB)
Title: Apparatus for water culture of plants
Inventor: NOZAWA SHIGEO
IPC: A01G31/02
Filed: 1981-07-21
Abstract: In order to elevate and lower the level of a culture solution 6 in a plantation vessel 1 or to increase the velocity of flow of the culture solution in the vessel during the period from germination to harvesting of plants, a plurality of small capacity pumps 4 capable of sharing a maximum amount of supply of culture solution are disposed in parallel in a culture solution store tank 3 and the pumps are operated in desired numbers to control the supply of solution to the vessel in accordance with the state of growth of the plants. The solution circulates via no-return valves 5, feed pipe 8 and drain regulator 2. <IMAGE>
Patent GB-2082300-A (GB)
Title: Grateless Pre-burner Furnace
IPC: F23L15/00
Filed: 1981-08-06
Abstract: A grateless furnace (10, 10') has a combustion chamber (11, 11'), means (19, 19') to form a fire bed in the bottom thereof the combustion chamber (11, 11') having upper (27a, 27a') and lower (27b, 27b') regions, at least a part of the upper region (27a, 27a') thereof being lined with refractory material (29, 29') and the lower region 27b, 27b') of the chamber (11, 11') being cooled by water contained with a water jacket (30, 30'). <IMAGE>
Patent GB-2082734-A (GB)
Title: A Valve and a Vehicle Tyre Deflation Signalling Means Incorporating the Valve
IPC: F16K37/00
Filed: 1981-08-28
Abstract: A valve for normally confining a gaseous fluid in a container, for example a vehicle tyre, comprises a tubular housing 1, a substantially annular valve seat 18 in the housing coaxial therewith, a valve member 16 in the housing biased by the gaseous fluid in the container into sealing engagement with the valve seat 18, piston means 25, 26 movably contained in the housing 1 in a region of the latter between the valve seat 18 and an open end 31 of the housing, and a seal 23 on the piston means operatively coactible with the housing proximate the open end 31 of the housing. The valve member 16 and the valve seat 18 constitute a first means for preventing escape of gaseous fluid from the container, and the piston means 25, 26 and the seal 23 constituting a secondary means for preventing escape of gaseous fluid from the container. <IMAGE>
Patent GB-2083468-A (GB)
Title: Preparation of dichlorobenzyl alcohol
IPC: C07C33/46
Filed: 1981-09-01
Abstract: 2,4-Dichlorobenzyl alcohol is obtained in high purity and in high yield by reacting 2,4-dichlorobenzyl chloride in a two stage reaction with a water soluble salt of an organic acid in the presence of a phase transfer catalyst to give the 2,4-dichlorobenzyl ester of the organic acid which is subsequently hydrolysed with a strong base.
Patent GB-2107052-A (GB)
Title: Detection of heating in coal seams
Inventor: COURTNEY RICHARD STANLEY
IPC: G08B17/117
Filed: 1981-09-29
Abstract: A method of detecting heatings in coal seams comprises monitoring the concentration of HCl gas in a mine atmosphere and producing an alarm signal if the concentration rises above a predetermined level. Preferably a tube bundle system is used for monitoring the mine atmosphere.
Patent GB-2084634-A (GB)
Title: Improvements in chain stripper devices and assemblies for mining machines
IPC: E21C27/32
Filed: 1981-10-02
Abstract: A machine frame for a scraper-chain conveyor employs a housing or 'plough box' 11 containing the chain wheel for driving a haulage chain 13. A stripper device 15 is provided in the housing 11 to separate the chain 13 from the chain wheel. The stripper device 15 is composed of a one-piece shaped element 16 with an arcuate blade 17 projecting into the chain wheel. The element 16 is fitted to a mounting flange 18 of the housing 11 with a single upstanding bolt-and-nut 19, 23 and a separate complementary locking member 30. The element 16, the locking member 30 and the flange 18 have shape-locking interengaging projections and recesses resisting vertical and horizontal displacement of the element 16. The stripper device 15 can be positionally inverted. <IMAGE>
Patent GB-2116301-A (GB)
Title: Combined heat pumps and i.c. engine installations
Inventor: HARRIS KENNETH JOHN
IPC: F25B29/00
Filed: 1981-10-08
Abstract: A heat pump installation for removing excess heat from an internal combustion engine (8) comprises an evaporator (6) of a heat pump for extracting heat from air drawn over the engine and a generator (11) enclosed in a common housing (12). Heat may also be extracted from the engine exhaust gases. The heat pump also includes a compressor (3) and a condenser (4). <IMAGE>
Patent GB-2087998-A (GB)
Title: Multiple disc brake
IPC: F16D65/853
Filed: 1981-11-20
Abstract: In a multiple-disc brake having axially movable and interleaved rotor (10) and stator (18) discs within a housing (46, 47) which contains oil or other coolant and an actuator (43, 44, 45) for axially moving the discs into engagement, the rotor discs are provided with a first series of circumferential spaced generally radially extending cut-outs in the form of slots (12) and the stator discs are provided with a second series of circumferential spaced generally radially extending cut-outs in the form of coolant access cut-outs (26) one series through the inner periphery of the discs and the other series through the outer periphery. Portions of the two series of cut-outs (12, 26) are arranged to periodically overlap each other during relative rotation of the rotors and stators at locations outside the bands of frictional contact (15) of the rotors and stators to provide a generally radial coolant flow path (31) from one series of cut-outs to the other. In a preferred construction the slots (12) have inclined edges (13, 13a) so that the slots are of tapering form in a radial sense, and the stator discs (18) also have slots (23) for coolant flow. <IMAGE>
Patent GB-2089146-A (GB)
Title: Shuttered electrical socket connectors
IPC: H01R13/453
Filed: 1981-12-02
Abstract: An electrical socket connector is adapted to receive a multiple-pin shrouded plug and has a body (10) containing at least live and neutral sockets (15, 16) and formed with a recess (30) to receive a shroud (24) surrounding the pins (21, 22, 23) of the plug. Moveable shutters (40) are spring biased to close the live and neutral sockets (15,16) and have cam surface portions (42) extending into the recess (30) to be engaged by the shroud of a plug so as to be moved against the spring bias on insertion of a shrouded plug, thereby to open the shutter.