baber/WOPTO huggingface dataset:
Patent GB-2051894-A (GB)
Title: Apparatus for controlling the healds in a circular loom for producing leno fabric
IPC: D03C13/00
Filed: 1980-05-21
Abstract: In the production of tubular leno fabric on a circular loom, heald staves 1, 2 are axially reciprocatable in a common support 3 which is oscillated about an axis 11 parallel to the staves by control means 14, 17 which turn the support 3 alternately clockwise and anti-clockwise during a double reciprocating stroke of the staves 1, 2 to cross the leno thread 20 with the standard thread 21. <IMAGE>
Patent GB-2079815-A (GB)
Title: Mining of thick coal seams
IPC: E21F15/08
Filed: 1980-06-20
Abstract: In mining a thick coal seam that must be excavated in several benches, the excavation of the uppermost bench is accompanied by the introduction of a cementitious slurry into the resulting stope for consolidating the waste rock present therein, preparatorily to the excavation of the next-lower bench, and proceeding in like manner with the second bench if a third one is to follow. The cementitious slurry, comprises burnt or slaked lime, and/or portland cement, suspended in water in a quantity of about 10 to 60 % by weight and preferably together with a small percentage of chlorides of one or more alkali or alkaline-earth metals, to which ceramic aggregates of large specific surface such as mineral ashes, slag, sand or dolomite powder may be added in a quantity of up to about 30% of the weight of the water. The slurry, on being admitted to the stope in an amount of at least 10 % of the volume thereof, causes the waste rock to swell and to form a solid layer of up to approximately a meter in thickness which allows the next-lower bench to be excavated after only about a month's delay.
Patent GB-2054175-A (GB)
Title: Method of and Apparatus for Producing Raster Drawings using a Computer-controlled Drawing Machine
IPC: B43L13/02
Filed: 1980-06-23
Abstract: Raster drawings are produced using a computer-controlled drawing machine which has a drawing table 2 in the form of a disc rotatably mounted about its central axis and carries a drawing support. A guide 3 holds a drawing head 7 above the table and extends, in an operative position, diametrically relative to the axis of rotation of the table. Means are provided for moving the drawing head continuously along the guide at least between the centre and the edge of the drawing table while the drawing head intermittently strikes the drawing support with a drawing medium 9 which applies raster dots in spiral paths to the drawing support. Either the drawing head or the drawing table may be driven at constant speed while the other may be driven at a variable speed depending upon the operative radius. The drawing medium may be ink or, if the drawing support is light-sensitive, light. <IMAGE>
Patent GB-2053267-A (GB)
Title: Sulfur- and molybdenum- containing additives for lubricating oils
IPC: C10M159/18
Filed: 1980-06-25
Abstract: Additives for lubricating oils are obtained by reacting an acidic molybdenum compound, a basic nitrogen-containing substance and a sulfur source, preferably in the presence of a polar promoter, to form a sulfur- and molybdenum-containing composition, which when incorporated in a lubricating oil inhibits oxidation, imparts antiwear and E.P. properties and/or modifies the friction properties of the oil. The polar promoter, when used, is preferably water.
Patent GB-2061588-A (GB)
Title: Road signs
IPC: G09F11/14
Filed: 1980-10-07
Abstract: A road sign comprises a board for carrying a legend which can be covered by three planks (5, 6, 7) guided for sliding movement, in a direction perpendicular to their length, from a retracted position overlapping one another, to extended, covering positions in which they obscure at least part of the board (1) and provide an alternative legend carrying surface. Movement of the planks is effected by endless cables connected to a drive shaft and to the lowest plank (5), the other planks being moved by contact with the plank (5). <IMAGE>
Patent GB-2070698-A (GB)
Title: Improvements in and relating to apparatus for producing compressed air
IPC: F04B49/02
Filed: 1981-01-09
Abstract: A piston compressor 1 has an associated pressure-operated device 3 arranged to connect an additional chamber 8 to the clearance volume 11 of the compressor when a preset pressure level is reached in a reservoir 2 in order to provide pressure stabilisation. The device 3 includes a piston 5 movable by reservoir pressure against a biassing spring 16 to connect the additional chamber 8 (in the form of a groove 24, 25 in the piston 5) via a groove 9 and a pipe 12 to the clearance volume 11. <IMAGE>
Patent GB-2095653-A (GB)
Title: Producing CaSO4 and CaO from CaS
IPC: C01B3/00
Filed: 1981-03-24
Abstract: Particles containing CaS are fluidized by an O2-containing gas in a first bed (compartment 1) under such conditions that some, but not all, the CaS is converted to CaSO4 with the liberation of heat but with substantially no evolution of sulfur moieties. Particles containing CaSO4 and the remaining CaS pass to another bed (between baffles 2 and 3) wherein they are fluidized by an O2- containing gas under such conditions that CaS is converted to CaO with the liberation of sulfur moieties, recoverable as (e.g.) SO2 or elemental sulfur. Particles containing CaSO4, CaO and unchanged CaS may be passed to a third bed (9) and fluidized therein by an O2-containing gas under such conditions that substantially all the CaS is oxidized to CaSO4 with no liberation of sulfur moieties. The resulting hot particles containing CaSO4 and CaO are preferably used for the oxidation and desulfurization of a sulfur-containing fuel in a fluidized bed (8) between the first and third beds. <IMAGE>
Patent GB-2082087-A (GB)
Title: A process of treating metal handling and shaping devices
IPC: B05D5/08
Filed: 1981-05-21
Abstract: A process of treating metal handling and shaping devices consists of cleaning the devices to the bare metal, applying a liquid suspension of at least 5% to 25% submicron sized particles of graphite to said bare metal of the devices to penetrate the metal and build up smooth adhering and lubricating coating on said metal devices with sufficient excess of graphite to form a smooth surface. The size of the submicron particles of graphite are no larger than 5m  mu  as determined by electron microscopy.
Patent GB-2077690-A (GB)
Title: Method of applying gripper sleeves to groups of bottles
IPC: B65B61/14
Filed: 1981-05-22
Abstract: A method of applying sleeves (10) to groups of bottles (30) which are positioned in a crate wherein the bottles and the crate are displaced the crate, relatively to one another so that neck portions (32) of the bottles project above the crate and whilst said relative displacement is being effected or the bottles are in this neck projecting position, the sleeves are applied to the bottles and then the bottles and the crate are relatively displaced to reposition the bottles in the crate. <IMAGE>
Patent GB-2099884-A (GB)
Title: A method of boring holes
IPC: C09K8/38
Filed: 1981-06-05
Abstract: A method of boring a hole using a rotary drill includes foaming a mixture of water, a polymer and a surfactant at a rate not exceeding 0.4 litres per second and injecting the foam at a pressure of between 0.1 and 0.5 bar through the interior of the drill string 6 in a substantially continuous column. The foam flows through apertures in the drill bit 12 thereby lubricating and cooling the drill bit and removing cuttings and then flows upwardly through the annular space between the side of the hole 4 and drill string 6. <IMAGE>
Patent GB-2082065-A (GB)
Title: Zootechnic and/or veterinary compositions
IPC: A61K31/565
Filed: 1981-08-19
Abstract: The present invention provides zootechnic and/or veterinary compositions which afford excellent results with the growth of pigs, in particular with respect to gain in weight. The compositions of the invention comprise from 10 to 50 mg of zeranol and from 5 to 50 mg of a steroid of the general formula:   <IMAGE> wherein R represents an alkyl radical of from 1 to 3 carbon atoms and X represents a hydrogen atom, an acyl radical of from 1 to 18 carbon atoms, a saturated or unsaturated hydrocarbyl radical of from 1 to 6 carbon atoms, or a saturated or unsaturated hydrocarboxyhydrocarbyl radical of from 2 to 5 carbon atoms.
Patent GB-2086332-A (GB)
Title: Sail vehicle rigging and said vehicle provided with such a rigging
IPC: B63H9/06
Filed: 1981-08-21
Abstract: Rigging for sail vehicle, comprising at least one sail 26, 27 and one mast 1, in which the mast lies between the wind pressure center C and the vertical line passing through the top of the front sail edge 3, and the mast is provided with fastening means for said sail which allow complete filling thereof, about a substantially vertical axis both to port and starboard, even with an almost head wind. In one embodiment the sail is supported by 2 members 6, 7 bowed outwardly, and in another Figs. 3-5 the sail is divided into 2 parts each one being attached to the mast by means of a groove therein. <IMAGE>
Patent GB-2084882-A (GB)
Title: Breathing apparatus
IPC: A62B7/00
Filed: 1981-09-07
Abstract: A breathing apparatus includes two parallel flowpaths 4 and 12 through which breathing gas can be supplied independently from a cylinder 1 to a facemask 6. The first flowpath 4 includes a shut-off valve 2, pressure reducer 3 and demand valve 5 and provides the normal route through which the user of the apparatus is supplied. In the event of a failure or malfunction of any component of this normal breathing circuit, however, the first flowpath can be isolated by closing the valve 2 and the user can breathe through the second or bypass flowpath by opening a second shut-off valve 11 which has a combined pressure reducer and leads directly to the mask 6. The two valves 2 and 11, together with a cylinder pressure gauge 14 and a safety burst disc 15, are incorporated in a compact valve assembly 13 secured to the cylinder 1. <IMAGE>
Patent GB-2090666-A (GB)
Title: Determining the state of discharge of an electric battery
IPC: G01R31/36
Filed: 1981-12-16
Abstract: A process and apparatus for determining the state of discharge of an electric battery by measuring the voltage drop associated with changes in its internal resistance. According to the process, the battery is periodically connected to a reference load for a brief interval during which the voltage at the terminals of the load is measured. The measured analog voltage is converted to a digital signal which is compared to a number of pre-programmed digital levels to determine the state of change of the battery. The apparatus comprises a commutation component controlled by a logic signal, a reference load, a sampler-and-hold circuit, an analog-to-digital converter and a comparator which can be programmed at n levels. The apparatus compares digital signals corresponding to the voltage at the terminals of the reference load with the n programmed levels of the decoder and a signal is generated indicating the level of the electric battery with respect to the levels programmed into the comparator.
Patent GB-2089980-A (GB)
Title: Method for assaying superoxide dismutase
IPC: G01N33/573
Filed: 1981-12-18
Abstract: In a method for assaying superoxide dismutase (SOD), a specimen containing SOD is reacted with an SOD-enzyme conjugate and an antibody against SOD, and the SOD level of the specimen is determined by measuring the enzyme activity in either the solid or liquid phase of the reaction mixture. The enzyme may be beta-galactosidase.
Patent GB-2095287-A (GB)
Title: Method for producing grain- oriented silicon steel
IPC: C21D8/12
Filed: 1982-01-15
Abstract: The steel may be hot rolled directly from ingot to hot band at lower than conventional temperatures without adversely affecting the magnetic properties thereof, when it has a manganese to sulfur ratio of not more than 2.5 and preferably about 1 to less than 2.5. Hot rolling is conducted at a temperature of not more than 1260 DEG C (2300 DEG F) and preferably 1204 DEG C (2200 DEG F) to less than 1269 DEG C (2300 DEG F). Preferably the steel contains copper in an effective amount up to 0.4% by weight and preferably about 0.2 to less than 0.58% by weight. The composition and processing are otherwise conventional.
Patent GB-2114295-A (GB)
Title: Improvements in or relating to ultrasonic transducer arrays
Inventor: LINES DAVID IAN ARTHUR
IPC: G10K11/30
Filed: 1982-01-29
Abstract: An ultrasonic transducer array comprises a plurality of transducer elements in a substantially linear phased array formation (2) and includes means, such as a prism (1) of different acoustic refractive index to that of the surrounding medium, attached to the front of the array (2), whereby a non-linearity may be introduced into the path of ultrasonic energy to or from the array, so as to minimise a non-linear variation of angular resolution with angle associated with the array. The means may alternatively provide a uniform interchannel delay across the array, consisting of a plurality of channels each containing two materials of different acoustic refractive index in varying proportions. "Waveguides" may also be provided to reduce interchannel coupling. <IMAGE>
Patent GB-2119624-A (GB)
Title: Fodder additive and a process for its preparation
Inventor: HONTI PETER
IPC: A23K1/16
Filed: 1982-05-07
Abstract: A fodder additive is based on industrial by-products of vegetable origin and the characteristic feature is that it contains 1.2 to 30 percent by weight of natural and/or synthetic odour and flavouring substances on a finely ground carrier prepared of lixiviated plant parts, preferably of dried beet chips obtained in the course of sugar production by grinding. The relatively sensitive aromatic materials are not on the surface of the carrier but in its hollow inner structure and thus they are protected against oxidation, hydrolysis and other chemical attacks. Compared with already known aromatic products on carriers with an inner hollow structure the fodder additive of the invention shows the advantage that the microhollows of its carrier have not to be prepared but they exist already, and that the carrier is a digestible, completely natural material.
Patent GB-2126624-A (GB)
Title: A mining machine
Inventor: PARROTT GEORGE ALBERT
IPC: E21C27/02
Filed: 1982-09-09
Abstract: A mining machine 1 comprises an elongate machine body 2 built up from individual units comprising an electronics unit 16 housing machine control and machine health monitoring apparatus, to one end of which electronics unit 16 is secured an electro-mechanical unit 15, with at least one ranging arm 19 pivotally attached to the electromechanical unit 15 about an axis 20 extending transversely of the machine body 2 and carrying, remote from the machine body 2, a rotatable cutting head 21, the electro-mechanical unit 15 comprising at least one electric motor 23 rotatable about a transverse axis 24 for powering at least the associated cutting head 21 through a transmission 9, and optionally for powering in addition, through a transmission,a machine haulage unit 17. <IMAGE>
Patent GB-2131958-A (GB)
Title: Fluid flow measurement
Inventor: HILTON BRIAN
IPC: G01F1/22
Filed: 1982-12-03
Abstract: To allow a flowmeter to be inserted into a pipeline (12), (14) or for the flowmeter to be easily removed a manifold (10) is arranged in the pipeline. This is suitable for a flowmeter or a filter. The meter extends at right angles to the pipeline in a cansister (18). The meter comprises a spring loaded piston (24) on a tapering sleeve and pin assembly (28, 30), within a cylindrical sleeve (22). Both the sleeve (22) and the canister (18) are transparent to permit the displacement of the piston to be seen. A scale allows the displacement to be read off as flow, by suitable calibration. <IMAGE>
Patent GB-2116397-A (GB)
Title: Video picture stabilising system
Inventor: WILSON MERVYN OLIVER
IPC: H04N5/232
Filed: 1983-02-18
Abstract: A video picture stabilising system wherein a video input from a camera 11 is converted to digital form and stored sequentially in memory 17 starting from a variable address (offset from the beginning of the memory block). The variable offset address is obtained from the motion sensing circuits 10, by an interface unit 14 and is thus determined by the amount of shift of the camera from a mean position. The memory locations are read out sequentially and converted back to analog form, but here the addressing starts at a fixed address, the beginning of the memory block. This introduces a delay and hence offset in the output data. However, this offset is determined by the variable offset address and hence the camera shift or offset from its mean position. Thus, this introduced controllable offset can compensate for the offset introduced into the video picture signal by the shifted camera position. Therefore, the analog output from the complete system when displayed will show the scene without any offset i.e. as if the camera were still at its mean position. <IMAGE>
Patent GB-2115910-A (GB)
Title: Automatic firearm with device for changing over the ammunition feed
Inventor: VUILLE ERIC
IPC: F41A9/37
Filed: 1983-02-23
Abstract: A device on an automatic firearm serves for changing over the ammunition feed from a first ammunition channel to a second and makes it possible to pivot two ammunition guides (11, 12) so that either or both ammunition guides (11, 12) are in the position of rest, but without it being possible for one ammunition guide (11, 12) to be pivoted into the working position as long as the other is in the working position. For this purpose, there is a locking pin (33) which can be displaced to release one ammunition guide (11, 12) only when the other is in the position of rest. <IMAGE>
Patent GB-2137749-A (GB)
Title: Intruder Detection System
Inventor: NEZAFATI ALI REZA
IPC: G08B13/16
Filed: 1983-04-07
Abstract: An intruder detection system has a control unit (11), a detector unit (10) for transmitting and receiving ultrasonic sound waves into a protected area, and to provide an alarm signal to an alarm unit (12) when an intruder is detected, characterised in that the sound waves are transmitted intermittently, and a receiver of the detector unit (10) receives echoes from the protected area, only during the periods for which the transmitter is inoperative. An alarm signal is generated when a characteristic of a received echo, e.g. frequency or intensity, differs from that of a stored "calibration echo". The system is arranged to recalibrate regularly and after each alarm signal. The control unit (11) may comprise a keyboard, a voice detection unit, radio or ultrasonic receiver or be connected to a telephone line. The units are interconnected by mains wiring but are not dependent upon mains power for their operation. Each unit may be remote from any other unit. The system is run by a microprocessor. <IMAGE>
Patent GB-2121851-A (GB)
Title: Monocoque building method
Inventor: WOLFENDEN RAY MORLEY
IPC: E04B1/32
Filed: 1983-06-06
Abstract: A building has a continuous shell which does not have a separate skeletal framework transmitting load directly to the foundations, a plurality of elongate strips of material 10 each of similar "paraboloid" or "polygonal" profile are joined together side by side. The strips 10 may be subjected to gradual bending "in-situ" so as to stress the material and held under tension by cables connecting the free end and/or by clamping the free ends to the foundation. Alternatively the strips 10 may be to some extent precurved. Each strip may be formed from an inner and outer membrane 18, 13 bonded together by a layer of thermal insulating material 20. <IMAGE>
Patent GB-2122183-A (GB)
Title: Glass compositions for inhibiting corrosion of metal surfaces
Inventor: DRAKE CYRIL FRANCIS
IPC: C03C4/00
Filed: 1983-07-16
Abstract: A corrosion inhibiting material comprises a water soluble zinc oxide/phosphorus pentoxide/alumina glass which, when in contact with water, releases ions which inhibit corrosion of adjacent metal surfaces. Advantageously the glass is finely ground and then dispersed in a resin carrier to form a paint. The glass composition comprises 61.1 to 63.3 mol% zinc oxide, 35.8 to 37.8 mol% phosphorus pentoxide and 0.1 to 2 mol% aluminium oxide.
Patent GB-2136476-A (GB)
Title: Digging trenches
Inventor: MARTEN EDWARD M
IPC: E02F9/02
Filed: 1983-08-15
Abstract: Apparatus and method for digging deep trenches having parallel generally vertical walls in solid rock such as limestone. The apparatus includes a transport means 10 for providing support and for moving along a traverse on the earth's surface while cutting a trench along that traverse. The transport carries a boom which may be articulated into the ditch being cut and a pair of rock cutter wheels 60 carried on the end of the boom and assembled so that the outermost cutter teeth are wider than any other part of the boom assembly. The apparatus further includes means for aligning the flat surfaces of the rock cutter wheels parallel to and between the walls of the ditch and for maintaining alignment of the wheels with the trench as the transport moves along the traverse so that repeated cuts may be made to extend the trench to any desired depth. The trenching method includes the cutting of a pair of narrow slots by means of the rock cutter wheels as the transport moves along the traverse and then removing material between the slots. The method further includes repositioning the cutter wheels in a previously cut trench to make second cuts extending the depth of the trench to a preselected depth.   <IMAGE>
Patent GB-2147815-A (GB)
Title: A ball and manufacture thereof
Inventor: READER JOHN VILLIERS
IPC: B29C45/14
Filed: 1983-10-12
Abstract: A ball comprising a cover formed from at least two cover-forming pieces (10, 11) surrounding a solid interior formed from a synthetic resin or other material which acts as an adhesive to hold said pieces together, and fibre reinforcing means (18) incorporated within the solid interior. The fibre reinforcement may be in the form of an element straddling the joint between the pieces 10, 11, and may be of glass, carbon, or Kevlar (RTM) fibre. The core is preferably of polyurethane either injected via a hole 16 between the assembled cover pieces, or placed in the cover pieces before they are brought together. <IMAGE>
Patent GB-2132759-A (GB)
Title: Blood collecting tube
Inventor: ASADA YOSHIMITSU
IPC: B01L3/14
Filed: 1983-11-14
Abstract: A blood collecting tube (1) contains a blood coagulation-promoting medium (3) comprising a carrier having a specific gravity higher than that of blood cells, and a powderous blood coagulation-promoting agent supported on the carrier optionally by means of a binder which is soluble to blood serum, medium 3 being held between the inner walls of the tube in an intermediate portion of the tube. The carrier is preferably hydrophilic; the binder is preferably water-soluble silicone, polyethylene glycol, dextran, a cellulose derivative or polyvinyl pyrrolidone; and the blood coagulation- promoting agent is preferably glass, kaolin, bentonite or diatomaceous earth. <IMAGE>
Patent GB-2143654-A (GB)
Title: Automatic running work vehicle
Inventor: YOSHIMURA SHINGO
IPC: G05D1/02
Filed: 1983-12-16
Abstract: An automatic running work vehicle in which both front wheels 2 and rear wheels 3 can be steered and which is provided with a follower sensor A for detecting the boundary between an unworked area and a worked area and an orientation sensor 5 for detecting the running direction so as to run automatically along the boundary. Based on the result of detection of the boundary by the follower sensor and on the result of detection of the orientation of the vehicle body by the orientation sensor, the front and rear wheels are steered automatically to correct the running direction automatically. If the orientation is within a prescribed range of a desired vehicle front and rear wheels are adjusted equally to give translational movement; if outside the range a different adjustment is applied to front and rear to effect a directional correction also. The vehicle may be a mower. <IMAGE>