baber/WOPTO huggingface dataset:
Patent GB-2011669-A (GB)
Title: Improvements in programmable logic array adders
IPC: G06F7/50
Filed: 1978-11-22
Abstract: A programmable logic array has a separate two bit decoder 10 for receiving each like order pair of digits Ai, Bi of two n digit binary numbers A0, Ai....An-1 and B0, B1....Bn-1 plus a carry Cin. The decoders 10 generate an output signal called a min term on a different line for each of the four possible combinations AiBi, AiBi, AiBi; and AiBi of the true and complement of each pair. The min terms from the decoders are fed to an array 12 called the product term generator or AND array which generates product terms fp = f0(A0, B0) f1(A1, B1)....fn-1(An-1,Bn-1) fn(Cin> The product terms are fed to a second array 18 called a sum of product term generator or OR array that sums product terms fp. The output lines 21 of the array 18 are connected in pairs to respective ones of a series of latches 22 forming the last in the sequence of logic elements making up the PLA. These latches each perform an Exclusive-OR function to generate a sum bit Si that is an Exclusive-OR of two functions supplied by the OR array to the inputs of the latches to generate a sum S0, S1....Sn-1 plus a carry Cout, for the adder at the output of the PLA. The adder is optimized for a PLA with latches that perform an Exclusive-OR function and is more efficient than known adders embodied in PLAs, in which the output latches perform an AND function.
Patent GB-2012618-A (GB)
Title: Method and apparatus for the manufacture of a laminate coated on both sides with a thermoplastic composition
IPC: D06N3/06
Filed: 1979-01-12
Abstract: A method for the manufacture of a laminate, for instance a floor covering material, by applying a thermoplastic coating on one side of a substrate (pattern side), on which a pattern printed in design may be applied, followed by one or more thermoplastic layers, and applying a thermoplastic coating on the other side (reverse side), wherein after the application of a foamable or non-foamable coating, possibly printing in design of a pattern and application of a finishing coating, the pattern-side is pregelled and subsequently the reverse side coating is applied, after which the whole is conveyed through an oven with the pattern- side over driven, cooled support rolls with a non-adhering surface in such a manner that the surface speed of the support rolls and the conveying speed of the coated substrate are the same, in order to gel and possibly foam both coatings simultaneously.
Patent GB-2015766-A (GB)
Title: Adjustable optic fibre connector
IPC: G02B6/42
Filed: 1979-02-28
Abstract: An interchangeable optical connector comprising a first connector member 1 carrying a light source, preferably a diode, and a second member 2 which can be connected to the first, and carrying one or more optical fibres 20 serving to receive the light from the light source, as well as means for regulating the position of the light source with respect to the end of the fibre or fibres, wherein the first member has a reference surface against which is applied a surface corresponding to the second member, means being provided for regulating the distance between the source and the reference surface, together with means for regulating the distance between the end of the optical fibre or fibres and the reference surface, one of the members also having means for laterally regulating the alignment between source and fibre. <IMAGE>
Patent GB-2047088-A (GB)
Title: Backrest
IPC: A47C16/00
Filed: 1979-04-19
Abstract: A portable inflatable backrest e.g. for use by invalids, sedentary workers, or drivers or other travellers, comprises a collapsible body forming a cushion preferably shaped to afford support to a central area and side regions of a user's back, and a bulb-type or other air pump for inflation together with a control valve, the pump and valve being on a flexible tube for actuation while the backrest is in use enabling selective adjustment to be made by the user without disturbance, e.g. by a driver in the course of a journey.
Patent GB-2020354-A (GB)
Title: Improvements in or relating to a pump
IPC: F04B49/12
Filed: 1979-05-25
Abstract: The output flow of a variable output pump, e.g. a swash-plate pump, is controlled in response to a reaction torque generated by the pump. The reaction torque of the pump housing may operate a mechanical linkage or a hydraulic servo-system for adjusting a swash- plate.
Patent GB-2050764-A (GB)
Title: Improvements in or relating to duplex transceivers
IPC: H04B7/155
Filed: 1979-06-08
Abstract: An AM duplex transceiver comprises two receiver aerials, a transmitter aerial, three detectors one of which is fed from the transmitter aerial and the other two of which are fed one from each of the receiver aerials, the receiver aerials being spaced so that at the frequency of operation a 90 DEG  phase shift obtains between signals received at the receiver aerials, two pairs of serially connected balancing resistors wherein the balance between the resistors of each pair can be controlled, both pairs of balancing resistors being fed at one end from the said one detector and at the other end one from each of the said other two detectors, a multiplier having two input ports one of which is fed from a tap between one of the pairs of balancing resistors and the other of which is fed from a tap between the other pair of balancing resistors, an oscillator/modulator arrangement feeding the transmitter aerial and phase locked to the frequency of a received signal by means of a phase control signal fed from the multiplier, a first phase detector fed from the tap of one pair of balancing resistors, a delay device via which the said first phase detector is fed also from the tap of the said one pair of balancing resistors thereby to provide a control signal which is fed back to control the balance between the resistors of the said one pair and a second phase detector fed from the tap of the other pair of balancing resistors with an undelayed signal and via the said delay device with a delayed signal from the tap of the said one pair of balancing resistors from which an output signal from the transceiver is derived, thereby to produce a second control signal which is fed back to control the balance between the said other pair of balancing resistors.
Patent GB-2057572-A (GB)
Title: A device for metering fluid flow
IPC: F04C11/00
Filed: 1979-08-30
Abstract: The device has a plurality of pairs of gears accommodated in chambers, which may be formed in plate-like housings (2). One gear of each pair is secured to a common shaft (40) so that when fluid is supplied under pressure by way of a common inlet manifold the pairs of gears rotate in synchronism with each other. Thus the fluid delivered from the outlet ports is proportioned with respect to the total fluid flow entering the device. The fluid emerging from the outlet ports may be used to drive hydraulic motors at a speed related to the speed of the shaft (40). <IMAGE>
Patent GB-2032237-A (GB)
Title: Improvements in or relating to tramlining devices for seed-drills
IPC: A01C7/08
Filed: 1979-09-18
Abstract: The invention relates to seed- drills, in which the supply of seed from a hopper maybe interrupted in order to produce tracks in a field, showing the line of sowing. Seed (12) from a hopper (10) is dispensed according to the position of a shutter (16), the action of the shutter is coordinated with the position of a marking member (50) through a mechanical coupling (18, 20, 22, 24) to a hydraulic system (26, 28, 30, 32, 36, 38) so that as the marking member (50) is lowered by the hydraulic system to produce a furrow, the shutter (16) is closed. As the marking member (50) is raised from the ground the shutter (16) is reopened, and so the cycle proceeds. <IMAGE>
Patent GB-2064121-A (GB)
Title: Fixed gauge
IPC: G01B5/12
Filed: 1979-09-24
Abstract: An end measuring rod for use in testing inter alia the straightness and cross-sectional circularity of pipes and pipe assemblies for oil/gas wells and drilling rigs, comprises a plug 5 of resilient material attached permanently or releasably to one or each end of a hollow metal hard plated cyclinder 1 to protect the latter from impact damage during said tests. The length and diameter of the metal cylinder are specific to the internal diameter of the pipe or pipe assembly to be tested and the projecting length and diameter of the or each plug member are selected such as not to interfere with correct testing which is, in effect, performed solely by the metal cylinder. <IMAGE>
Patent GB-2033530-A (GB)
Title: Drive assembly for power shovels and the like
IPC: B62D55/125
Filed: 1979-10-02
Abstract: A drive assembly for a power shovel or other machine comprises a motor 74 which drives an output shaft 73 through planetary geartrains 76, 77. The output shaft 73 has brakes 87, 88 and is formed with pinions 85, 86 for meshing with gears provided on a winch drum. The motor 74 is connected to the geartrain 76, by a flexible shaft 75 and the geartrain 77 is connected to the output shaft 73 by a crowned spline connection 101 with the result that the gear trains are isolated from structural deflections of the machine upon which the drive assembly is mounted. Embodiments are described which are suitable for use as rope crowd drives; rack crowd drives; hoist drives; swing drives; and propel drives of power shovels. <IMAGE>
Patent GB-2070790-A (GB)
Title: Front projection reader-printer
IPC: G03B21/11
Filed: 1980-03-05
Abstract: A front projection reader-printer comprises a viewing window 6, reflecting surface 12, viewing screen/exposure station 7, electrophotographic copy paper store 9, charging station 10 and development station 11, store 9 being situated above reflecting surface 12. <IMAGE>
Patent GB-2059167-A (GB)
Title: Doughut-type transformer for resistance butt welding
IPC: H01F38/08
Filed: 1980-05-01
Abstract: An annular core 2 is surrounded by transformer sections 3 each having a primary winding 4 and a cooled secondary winding 5. The primary winding 4 is composed of turns 4' shaped as a sector when viewed in the transformer cross-section. The secondary winding 5 comprises one turn 5' with a passage for cooling water. The turn 5' of the secondary winding is of a sector shape too when viewed in the transformer cross-section and is disposed between the turns 4' of the primary winding 4. The turns of the windings surround the annular core 2 so that the geometric centre 01 of each winding is displaced from the geometric centre 02 of the core 2 in the cross-sectional plane thereof and the geometric centre of the core is farther from the transformer axis. The cooling system is so designed that cooling water is supplied to half the turns 5' of the secondary winding 5 and flows generally outwardly from the inner to the outer limbs of the turns. It then passes to the remaining turns where it flows in the opposite sense. <IMAGE>
Patent GB-2076524-A (GB)
Title: District Heating
IPC: F24D3/08
Filed: 1980-05-23
Abstract: A district heating system is disclosed in which a single main distribution pipe 12 is taken from a source of hot water 10, e.g. waste water from a power station, to the buildings to be heated. After passing through radiators 16 and hot water cylinders 18, the now spent hot water is discharged to drain. In a modification, the spent hot water is drained into a storage tank and used to supply the "cold taps" of baths or washbasins, or to supply water closets or hot water cylinders. <IMAGE>
Patent GB-2053915-A (GB)
Title: Process for the conversion of methanol to other organic compounds
IPC: C07C29/158
Filed: 1980-07-02
Abstract: Oxygenated organic compounds are produced by catalytically decomposing methanol vapour to synthesis gas and converting the synthesis gas so-produced, or the carbon monoxide remaining after separation of the hydrogen therefrom, by contact with a conversion catalyst and optionally with methanol. The process is particularly applicable to the hydrocarbonylation of methanol to ethanol.
Patent GB-2053998-A (GB)
Title: Particulate bleach composition
IPC: C11D3/39
Filed: 1980-07-04
Abstract: Particulate bleach (and detergent) compositions with improved bleach efficiency are disclosed comprising a particulate peroxy bleach compound and tetraacetyl ethylene diamine (TAED), said TAED having the following particle size distribution as determined by sieve analysis:  0-20% > 150  mu m  0-100% > 100  mu m < 150  mu m  0-50% < 75  mu m  0-20% < 50  mu m, and being contained in granules in combination with a granulating agent, said granules having particle size ranging from 100-2000  mu m and comprising 10-99% by weight of TAED. The particulate bleach composition does not suffer from significant sedimentation and/or dissolution problems and does not suffer from significant decomposition problems during storage.
Patent GB-2081925-A (GB)
Title: Resistance welding control
IPC: B23K11/25
Filed: 1980-08-08
Abstract: A system for resistance welding in which the welding voltage between the electrodes is controlled by changing the pressure applied to the electrodes or the firing phase angle of the welding current in accordance with a reference voltage curve or a reference voltage integration curve. The system comprises a voltage sensor 5, a reference voltage generator 7, a differential amplifier 8, and a pressure control device 9, or a calculating unit for determining an appropriate firing phase angle of the welding current. The system can ensure a stable, good welding quality, since the welding voltage is always controlled by a series of optimum welding voltages, during the welding process, in accordance with a reference voltage curve with respect to time, preferably in terms of cycles of the welding current. <IMAGE>
Patent GB-2056794-A (GB)
Title: Power supply converter
IPC: H02M3/315
Filed: 1980-08-08
Abstract: The converter comprises an electronic switching device (SCR1) coupled in series with the primary winding (N1) of a transformer (M) across a rectified AC supply for producing in the primary winding (N1) a primary current pulsating at a desired frequency. Coupled across a secondary winding (N2) of the transformer (M) is a rectifier (D3) and capacitor (C2) arranged, by selection of the value of the capacitor (C2), as a tuned rectifier such that the current in the secondary winding (N2) is cut off by the rectifier action at a low value of the primary current before the switching device (SCR1) is commutated. Such a converter may be used in a television receiver with the transformer (M) comprising the television receiver line transformer and with one secondary winding (N2) supplying the sound circuits of the receiver and a further secondary winding (N3) supplying the picture circuits and, in such application, has the advantage of minimizing the effect of sound load variations upon the size and/or brightness of the picture. <IMAGE>
Patent GB-2084027-A (GB)
Title: Medical board game
IPC: A63F3/04
Filed: 1980-09-19
Abstract: The board represents a hospital having five wards plus a General Practice and a Private Practice. Each player is in charge of one ward having an Admission and Diagnostic Area, a Treatment Area and an Out Patients Area. Each player starts with five Test Cards indicating the patients' condition, and each patient is represented by a marker which is located on the board to indicate the treatment being received. The purpose of this game is to get rid of all one's patients by transferring and discharging them or signing their death certificates. <IMAGE>
Patent GB-2062682-A (GB)
Title: Protecting Electrodes of an Electrolytic Cell from Thermal Shock
IPC: C25C7/06
Filed: 1980-10-31
Abstract: In operating a cell for production of metal at elevated temperature having a cathode of the type including at least one hollow body defining a cavity, the cathode is prevented from cracking as its temperature is raised by the provision of a metal plug having a thermal conductivity greater than that of the hollow body in the cavity during the start up of the cell, the metal plug having a melting point approximate to the operating temperature. For aluminum electrolysis at about 950 DEG C., a cavity in each cathode 11 is filled with a metal plug 18, preferably a solid plug of 33.2% Cu-Al alloy. A portion of each cathode protruding into a chamber of the cell is provided with a sleeve 23 of insulating material, preferably expanded fibrous kaolin. A heat dispersing means 22 encircles each cathode radially outwardly thereof. A preferred form of the heat dispersing means is a stainless steel jacket located externally of the insulating material sleeve. After the cell is heated, the chamber is filled with a bath, and electrolysis is established. <IMAGE>
Patent GB-2517647-A (GB)
Title: Gas turbine engine
Inventor: HOUGH GEOFFREY STEPHEN
IPC: F01D5/08
Filed: 1980-11-04
Abstract: A gas turbine engine comprises an annular array of nozzle guide vanes 24, each guide vane including a heat pipe which extends into an annular cooling air duct 19 located radially inwardly of the engine's combustion chamber 12. After passing over the heat pipes and thereby cooling the nozzle guide vanes, the cooling air passing through the duct is directed on to the radially inner part 36 of the aerofoil portion 26a of the first stage of rotor blades 26 downstream of the nozzle guide vanes. The cooling air is directed on to the rotor blades at such an angle that the blades extract useful work from the cooling air.
Patent GB-2067062-A (GB)
Title: A device for the controllable delivery of material
IPC: A01C17/00
Filed: 1981-01-08
Abstract: A device such as a fertilizer spreader includes a hopper (2) which has a delivery orifice (8) at the bottom. The aperture size of the orifice (8) is adjustable by means of a control plate (9) which is movable relatively to the hopper (2). The control plate (9) is resistant to corrosion, and a layer (14), also of corrosion resistant material, such as stainless steel, is fixed to the bottom of the hopper (2). This avoids the problem of the control plate (9) becoming rusted to the hopper (2), for example when the spreader is out of use for a long time. The layer (14) has an opening (15) in register with the orifice (8). Instead of being of stainless steel, the layer (14) may be of another corrosion-resistant metal or of enamel, applied by immersion, spraying or electrolytic methods. <IMAGE>
Patent GB-2070098-A (GB)
Title: Panel Structure
IPC: E04C2/42
Filed: 1981-01-15
Abstract: A panel structure, more particularly a flooring panel in the form of a grid or grating is made from a mouldable synthetic resin reinforced by preformed elements 14a, 14d, themselves comprising a composite fibre/synthetic resin, preferably of the kind known as "pultrusions". Such pultruded elements 14a, 14d, are assembled into a grid and placed in an appropriate mould in which they are embedded in the mouldable synthetic resin. <IMAGE>
Patent GB-2068647-A (GB)
Title: Tanks for oil-cooled electrical induction apparatus
IPC: H01F27/02
Filed: 1981-01-26
Abstract: In a tank for encasing an oil-cooled electromagnetic induction apparatus having circumferential wall made of thin steel plates undulated to provide a plurality of vertically extending rib-like projections which are closed by welding at the upper and lower ends thereof, and an end frame and a bottom plate respectively secured to the upper and lower ends of the circumferential wall, each of the steel plates forming a substantial part of the circumferential wall is undulated to provide an even number of projection groups, each group including a plurality of vertically extending rib-like projections 11a, and also to provide at least a flat portion 11 located intermediate of the projection groups, the steel plate thus undulated is then bent at two positions in the flat portion so that the rib-like projections in the projection groups are brought into opposition to each other. Since the arrangement has a greater number of rib-like projections, heat dissipating capability of the tank is much improved. Support bars 16 and plates 21 covering oil passages are provided. <IMAGE>
Patent GB-2069813-A (GB)
Title: Foodstuff manufacture
IPC: A23L13/40
Filed: 1981-02-03
Abstract: Foodstuffs, e.g. for mixing with other edible materials, are made by comminuting, partly softening compressing and impregnating edible seeds. Wheat, rice or barley, for instance, cut into 3 to 7 pieces per seed, may be softened and compressed into flakes between metal rolls, brined and used as a meat filler.
Patent GB-2069641-A (GB)
Title: Improvements in flywheel mechanisms for fluid-pressure operated anti-skid braking systems
IPC: B60T8/74
Filed: 1981-02-09
Abstract: In an anti-skid braking system, an over arm clutch (44) is provided in a flywheel mechanism (3) comprising a flywheel (6) rotatably mounted on a shaft (2) driven from a braked wheel for axial movement relative to the shaft (2), a thrust member (8) mounted on, and keyed against rotation and axial movement with respect to, the shaft (2), and a ball and ramp mechanism 11 located between the thrust member (8) and a reaction plate (13) in clutched engagement with the flywheel (16). The ball and ramp mechanism comprises balls (19) located in angularly spaced recesses (16, 17) in adjacent faces of the thrust member (8) and the reaction plate (13). Relative rotation between the thrust member (8) and the reaction plate (13) causes the balls (19) to ride up ramps defined by the sides of the recesses (16, 17) to move the flywheel (6) axially away from the thrust member (8). Upon such movement the flywheel (6) acts on a lever (24) to operate a dump valve (5) for controlling a brake-applying fluid-pressure. An overrun clutch (44) between the flywheel (6) and the reaction plate (13) allows operation of the dump valve (5) to be maintained when the ball and ramp mechanism (11) is fully expanded. <IMAGE>
Patent GB-2092250-A (GB)
Title: Combined Pedal-operated Booster and Master Cylinder Assemblies
IPC: B60T13/14
Filed: 1979-01-24
Abstract: In a combined booster and master cylinder assembly for a vehicle braking system a pedal input force applied to the booster (1) is augmented by operation of the booster (1) and applied to the master cylinder (2) for actuation of the brakes. The booster (1) augments the input force by pressurising a boost chamber (52) under the control of control valve means (19, 20), the pressure acting on a boost piston (7) which applies an output force to the master cylinder (2) to advance a master cylinder piston (8) to close a recuperation valve (55, 56) and then pressurise a pressure space (67) connected to the brakes. In order to reduce the lost-motion in the assembly which has to be taken up by movement of the pedal, the control valve means has a pressure- responsive member (19), and the operation of the assembly is such that initial movement of an input piston (5) connected to the pedal causes fluid pressure to be applied to the pressure- responsive member (19), e.g. via a valve whose stem (14) rides on cam (15) of input piston (5), to cause the control valve means to be operative to cause the booster (1) to apply to the master cylinder (2) a force sufficient to advance the master cylinder piston (8) to close the recuperation valve (55, 56). <IMAGE>
Patent GB-2074448-A (GB)
Title: Selective weed control and compositions therefor
IPC: A01N47/30
Filed: 1981-03-18
Abstract: The selective weed control given by terbutryne is improved, particularly against blackgrass, by combination with linuron, preferably in a weight ratio of at least 3:1.
Patent GB-2072961-A (GB)
Title: Electrical connector
IPC: H01R4/70
Filed: 1981-03-26
Abstract: An electrical connector for connecting a conductor, such as a wire, to a main connector body (22), has a recoverable sleeve (34) presealed to a boss (24) that extends from the main connector body (22). The sleeve (34) is recovered on to a forming mandrel inserted into the open end of the sleeve so as to create a stop (46) and a guide (48) for respectively stopping and guiding the subsequent insertion of a wire into the connector. The connection between the main connector body and a wire is completed by removing the mandrel, inserting the wire and recovering the sleeve (34).