baber/WOPTO huggingface dataset:
Patent GB-2096618-A (GB)
Title: Preparation of organic pigment dispersions
IPC: C09B69/06
Filed: 1981-04-15
Abstract: A method of forming dispersions of organic pigments is described; particularly phosphotungstic acid, phosphomolybdic acid and phosphomolybdotungstic acid pigments. The method comprises preparing an aqueous acid solution of an acid stable polymer, adding to this solution a basic dye and raising the temperature to at least 50 DEG C, adding to this solution a solution of a complex heteroanion (e.g. phosphomolybdic acid) with stirring to form a solid dispersion/polymer solution at above 50 DEG C for at least five minutes.
Patent GB-2074237-A (GB)
Title: Arrangement for scavenging and charging the cylinders of a two- stroke internal combustion engine
IPC: F02B75/02
Filed: 1981-04-23
Abstract: The cylinder head 3 has inlet ports 7 which extend substantially parallel to the cylinder axis and are closable through the agency of a valve slide member 11 which is arranged to move in oscillation and disposed on a surface of the cylinder head in the combustion chamber 1 of the cylinder, the inlet ports being arranged in a pattern around a fuel injection or ignition device 4 fitted at the centre of the cylinder head. The valve slide member 11 is protected on the combustion chamber side by a water cooled plate 31 which is formed with apertures 32 in register with the inlet ports, the cooled plate bearing axially on the cylinder wall at the periphery and on a flange 35 of a tubular member 34 extending around the device 4 at the centre; and the cooled plate and valve slide member being arranged to move axially as a result of the pressure reversal between the combustion chamber and the air or mixture supply to the inlet ports. The plate 31 is formed of a carbon steel disc 31a and a stainless steel disc 31b providing curvature towards the combustion chamber 1 due to heat expansion. <IMAGE>
Patent GB-2090667-A (GB)
Title: Camera shutter
IPC: G03B9/14
Filed: 1978-09-29
Abstract: An electrical shutter for a camera includes a prime mover spring 6 which is charged by rotation of a charging member 3 during a film winding operation and serves upon shutter release to rotatably drive a shutter drive disc 5 through a single revolution during which it opens then closes shutter blades 33, 34; the shutter drive discs 5 being maintained stationary at its start position by first detent means 10 displaceable by a first electromagnet Mg 1 to open the shutter 33, 34 and at a shutter open position by second detent means 24, 40 displaceable by a second electromagnet Mg 2 to close the shutter; and the first detent means 10 having a bevelled surface 10b (see Fig. 6) for engagement with the shutter drive disc to provide a smooth shutter release. Preferably the second detent means is a double lever 24, 40 of which one 24 can be retracted by the second electromagnet and the other 40 also has a bevelled surface. <IMAGE>
Patent GB-2092188-A (GB)
Title: Providing tension-free yarn by temporary storage
IPC: B65H51/20
Filed: 1981-06-30
Abstract: A device for providing substantially tension-free yarn between a yarn source (10) and a yarn-consuming apparatus, consisting of an aspirator (jet nozzle) (18) for throwing the yarn into a perforated accumulator (20) from which the yarn-consuming apparatus takes the substantially tension-free yarn. As described, aspirator and accumulator are connected such that when the accumulator is full of yarn, feed from the aspirator is prevented. <IMAGE>
Patent GB-2086482-A (GB)
Title: Priming device for burner manifolds of gas turbine engines
IPC: F02C7/232
Filed: 1981-09-22
Abstract: A fuel pressure signal supplied by pipe 72 to a control valve 14 will cause the pressure to rise in parts 64 and 50 and in internal passage 56 and finally in the chamber 42 causing rapid rightwards movement of piston 36 against spring 44 to a position (Figure 2 not shown) in which port 58 is isolated from ports 48 and 60 and the supply of relatively high pressure fuel from pipe 68 to chamber 24 of a fuel accumulator 12 is terminated and at the same time port 48 connects port 60 with port 62. The fuel in chamber 24 of the accumulator 12 is then supplied via pipe 32 and variable restrictor 34 to port 60 of the control valve 14 by the force of spring 26 acting on piston 18, the fuel then passes via ports 48 and 62 and pipe 70 to the main burner manifold. Further rightwards movement of piston 36 isolates port 60 from ports 48 and 62, thus terminating priming of manifold 16 by accumulator 12 and connecting ports 66 and 52. Regulated fuel from pipe 76 can now flow via port 66, passage 54 and ports 48, 62 to main manifold 16 until the pressure signal in pipe 72 ceases. <IMAGE>
Patent GB-2084057-A (GB)
Title: Deep hole drill bit, manufacture and use thereof
IPC: B23Q11/00
Filed: 1981-09-24
Abstract: The bit comprises a hollow one piece tube (1) and a cutting tip (3) brazed to one end of the tube (1), the cutting tip (3) being apertured to provide an outlet (7) from the one piece hollow tube (1) and the one piece hollow tube (1) having a swarf clearance flute of 180 DEG  or more, i.e. is of D-shaped cross-section. The one-piece tube is pressed into the required shape from an original circular cross-section. The tube has a circular end fixed to a holder (2). For larger diameters, the tube contains an inner tube (9). In use, the drill is supplied with an air/oil mist for cooling and lubrication. <IMAGE>
Patent GB-2106796-A (GB)
Title: Method for controlling regenerator temperature in a fluidized catalytic cracking process
Inventor: MENZIES WILLIAM ROGERS
IPC: C10G11/18
Filed: 1981-10-02
Abstract: An improved method for controlling the fluidized dense catalyst phase temperature in the regeneration zone of a fluid catalytic cracking unit. In this method, the level 6 of the fluidized catalyst bed above the riser discharge 4 in the reaction vessel 5 is adjusted in response to a change detected in the temperature of the fluidized dense catalyst phase of the regeneration zone 11. Adjustment of the catalyst bed level in the reaction zone affects the coke laydown on the catalyst in the reactor and, consequently, the amount of heat liberated in the regeneration zone upon combustion of the coke contained in the partially deactivated catalyst. A reactor bed level is attained where the resulting coke laydown on the catalyst is sufficient to maintain the temperature in the fluidized dense catalyst phase at a level sufficient to ensure substantially complete combustion of coke and carbon monoxide and below that at which substantial catalyst deactivation takes place. <IMAGE>
Patent GB-2112311-A (GB)
Title: Improvements in and relating to de-burring apparatus
Inventor: EDWARDS MALCOLM DAVID
IPC: B23D1/26
Filed: 1981-12-21
Abstract: In a metal de-burring apparatus in which a workpiece is deburred by moving it on a guide 10 with its edge contacting a de-burring tool between two rollers mounted one above the other the axis of one roller is adjustably off-set with respect to the axis of rotation of the other roller. The two rollers 16 and 18 are formed of a resilient material at least at the surface portions 2 contacting the workpiece.   Height adjustment of the upper roller (16) is provided and the rollers may be formed from polyurethane having a 90 shore hardness sandwiched between metal discs. <IMAGE>
Patent GB-2117613-A (GB)
Title: Agricultural implement
Inventor: WATTS CHRISTOPHER WILLIAM
IPC: E02F5/02
Filed: 1982-03-22
Abstract: A subsoiler 10 comprises a variable-pitch share 12 which advantageously penetrates the ground at a relatively steep angle until depth wheel 31, acting through linkage 26, 27, moves the share 12 back to the desired shallow working angle which will be maintained throughout subsequent use of the implement. In a variation, the subsoiler leg 16 is pivotally attached to body portion 20 so as to allow the entry and for working angle of the share to be varied at will under the control of an appropriate hydraulic ram. <IMAGE>
Patent GB-2101395-A (GB)
Title: Thermal electric cells
Inventor: BAIRD MATTHEW DAVID
IPC: H01M6/36
Filed: 1982-06-07
Abstract: A thermal cell (10) comprises a layered stack composed of a cathode (11), an electrolyte (12) and an anode (13). The cathode (11) is formed by a pellet (2) of iron disulphide and/or calcium chromate. The electrolyte (12) is a compressed pellet (3) of active material together with an inert binder, the active material being a eutectic mixture of lithium and potassium chlorides or a mixture, which may be eutectic, of lithium bromide, chloride and fluoride, or a eutectic mixture of lithium bromide, chloride, fluoride and iodide. The anode is formed by a nickel or iron cup (5) containing a body (4) of sintered nickel plaque impregnated with an anode reactive material which may be lithium or lithium alloys which are molten at the cell operating temperature. The cell (10) may be one of a set housed together with a pellet of pyrotechnic material (26) within a thermally insulated container (21) and electrically interconnected to form a battery (20). <IMAGE>
Patent GB-2105229-A (GB)
Title: Apparatus for continuous casting of steel in different formats
Inventor: TANAKA NOBUYOSHI
IPC: B21B1/46
Filed: 1982-08-18
Abstract: In the continuous casting of steel, profiled beam blanks or, alternatively rectangular strands, are produced by a continuous casting machine by simple exchange of certain machine elements. Thus, some of the supporting-roll assemblies are "combined-use" assemblies which can readily be altered for supporting different kinds of strands. Preferably, the supporting roll assemblies provided directly below the mold are interchangeable between those suitable for the production of a beam blank and those suitable for the production of a slab. The mold itself is also replaceable and may be removed and replaced as a single entity with its immediately-following roll assemblies.
Patent GB-2127434-A (GB)
Title: A human monoclonal antibody against Rhesus D antigen
Inventor: CRAWFORD DR DOROTHY
IPC: C07K16/34
Filed: 1982-09-17
Abstract: This invention relates to a cloned, EB virus-transformed lymphoblastoid cell line and a technique for preparing the same. The cell line is capable of producing quantities of an IgG anti Rhesus D antibody useful as a standardised reagent in cross matching laboratories and as an in vivo agent for the prevention of rhesus disease in the newborn.
Patent GB-2111866-A (GB)
Title: Improvements in froth flotation
Inventor: MCCAFFREY DAVID JOHN ALEXANDER
IPC: B03D1/02
Filed: 1982-12-07
Abstract: In the froth flotation of coal, especially coking coal, improved results are observed when using as a collector an oil distillate cut within the range 80 to 250 DEG C, containing less than 20% by weight of naphthenes, less than 20% by weight of aromatic content and more than 60% by weight of n- alkanes and branched- alkanes. Preferably, the collector lector is used with a polyglycol ether "frother".
Patent GB-2111127-A (GB)
Title: Rotary positive-displacement fluid-machines
Inventor: VOGT HARALD
IPC: F04C15/00
Filed: 1982-12-09
Abstract: In a hydraulic machine that may be a pump of the sliding-vane type (as shown) a transverse pressure- balancing channel 21 is provided in the rotor 9 so as to equalize the pressures in liquid-filled gaps 18, 19 between the rotor end- faces and the adjacent housing walls 3, 11. Alternative forms of the channel(s) are described with reference to Figs. 2 and 3 (not shown). <IMAGE>
Patent GB-2120656-A (GB)
Title: Preparation of thio-bis-phenols
Inventor: DRESSLER HANS
IPC: C07C323/20
Filed: 1983-03-29
Abstract: A process for producing a thio- bis-phenol comprises reacting the corresponding phenol with sulphur dichloride in a solvent medium in the presence of a carboxamide. The carboxamide acts as a catalyst and is, for example, an N,N- dialkylcarboxamide having the formula:   <IMAGE> where R1, R2 and R3 are various substituents, or R1 may be hydrogen.
Patent GB-2123713-A (GB)
Title: Aerial spraying
Inventor: INCULET ION I
IPC: B64D1/16
Filed: 1983-07-08
Abstract: Aerial spraying apparatus includes two sets of nozzles located at spaced locations on an aircraft. Each nozzle has an electrode associated with it to induce a charge on the cloud of droplets issuing from the nozzle. A high potential is maintained on each electrode by a power pack that induces an equal and opposite potential on the electrodes of each set. By virtue of the opposed polarity of the electrodes, the aircraft is maintained at a neutral potential. To prevent a potential being inposed due to spray being deposited on the electrodes, a pair of corona needles are provided to establish a leakage current and maintain the electrodes at the required potential. This prevents the system becoming imbalanced and a potential being established on the aircraft. <IMAGE>
Patent GB-2146435-A (GB)
Title: Temperature control during annealing
Inventor: DUNCOMBE EDWARD
IPC: C21D9/50
Filed: 1983-09-07
Abstract: Temperature control at a weld (52) between a tube (51) and tube plate (53) having heat input from an inductive heating probe (50) to effect annealing of the weld is performed with the aid of a signal generating receptor coil (54) coupled with the probe (50). The signal from the coil (54) experiences a characteristic change when the temperature of the weld reaches the required annealing temperature and this signal is used to control the heat input to the weld. The receptor coil can be inside the tube (51), outside the tube (51), embracing a number of similar tubes (51) or may be inside an adjacent tube (51). At the required anneal temperature, the materials of the tube and weld reach their Curie point which brings about a permeability change. <IMAGE>
Patent GB-2127661-A (GB)
Title: Annular nozzle apparatus for use in fishing
Inventor: HOSETH KARE
IPC: A01K91/18
Filed: 1983-10-04
Abstract: Annular nozzle apparatus 4 suitable for use in washing away bait residues and/or reducing snell pin from a fishing line has a hollow construction permitting the line including main line, snell and hook to be drawn therethrough. At one end of the device an annular orifice 6 is adapted to emit a jet of water capable of surrounding the line and converging downwardly to a centre substantially coaxial with respect to the path of movement of the line. <IMAGE>
Patent GB-2130581-A (GB)
Title: 5-Phenoxybenzoic acid derivatives of pentiles, processes for their preparation and herbicidal compositions containing them
Inventor: ARNDT FRIEDRICH
IPC: C07D317/24
Filed: 1983-11-08
Abstract: The title compounds have the formula   <IMAGE>  in which one Y represents a group   <IMAGE> and the other Y's represent two groups   <IMAGE> which may be the same or different,  wherein  R1 and R2 each represents  - hydrogen, - (C1-C10)-alkyl optionally substituted by halogen, (C1-C6)-alkoxy, phenoxy or halogen-substituted phenoxy, - aryl-(C1-C3)-alkyl, optionally substituted by (C1-C6)-alkyl, halogen, (C1-C6)- alkoxy or nitro or trifluoromethyl,  - (C3-C8)-cycloaliphatic hydrocarbon, - aromatic hydrocarbon optionally substituted by (C1-C6)-alkyl, halogen, (C1-C6)-alkoxy or nitro or trifluoromethyl, or R1 and R2, together with the carbon atom to which they are attached, represent (C3-C8)-cycloaliphatic hydrocarbon,  Z represents nitro, cyano or halogen,  U represents hydrogen or halogen, W represents hydrogen, halogen, cyano, trifluoromethyl or (C1-C4)-alkyl radical.
Patent GB-2128546-A (GB)
Title: Power tool mounting assembly
Inventor: LAVIS LEON JOSEPH
IPC: B23D57/00
Filed: 1983-04-12
Abstract: A power tool mounting assembly which comprises a semi-circular base plate (8) which has a radial arm (9) pivotally connected (10, 11) adjacent the straight edge to the underside of the plate (8). The arm has a yoke member (17) slidably mounted thereon. A power tool support arm (24) is slidably supported in a cross-head (25) which is pivotally supported (31) in the yoke. The support arm can comprise two parallel, spaced limbs (35, 36) connected by transverse members (37, 38) with one limb being supported in the cross-head. Alternatively, the support arm can comprise a channel member with two parallel, spaced carriage housings fixed thereto for movably supporting the carriage housing on rails fixed to the cross-head. A power tool (56) is detachably supported by the support arm which extends across the base plate above the radial arm. The support arm and power tool can be counter balanced by weights (52) or springs.
Patent GB-2131617-A (GB)
Title: Contact spring for snap switch
Inventor: HOLLWECK WALTER
IPC: H01H5/18
Filed: 1983-11-25
Abstract: A contact spring for a snap switch comprises a snap spring arm (1) and a setting spring arm (2) connected to one another at one end (3). A cut-out center tongue (9, 12) projects from each spring arm with the free ends of the two tongues bearing against one another so that in the final installed position, one tongue (12) is bent into an arched configuration (14) and is supported against a bent end (10) of the other tongue (9). The legs of snap spring arm (1), which flank the arched spring tongue (12) on both sides, are each provided with at least one reinforcement bead (20) extending in the longitudinal direction. A member (24) applies the actuating force to the contact spring and a member (32) adjusts the position of the tongue (9). <IMAGE>
Patent GB-2150478-A (GB)
Title: Welding apparatus
Inventor: CROSBIE DANNY ALBERT
IPC: B23K37/04
Filed: 1983-11-30
Abstract: Welding apparatus usable to facilitate butt welding, which welding apparatus comprises a clamp for holding together in juxtaposed spaced apart relationship two metal piece parts to be butt welded, the clamp comprising first and second clamp parts (2, 4) between which the piece parts to be welded are sandwiched, the clamp parts (2, 4) being adapted to be drawn tightly together by a coupling member (6) which extends between the piece parts to be welded. The second clamp part (4) extends through an opening in the coupling member. In a second embodiment the coupling member and the second clamp member are formed integrally and have a generally T-shaped form. <IMAGE>
Patent GB-2151751-A (GB)
Title: Spool valve
Inventor: RENDLE COLIN GERALD
IPC: F16K11/07
Filed: 1983-12-21
Abstract: A spool valve 10 comprising a spool 11 of circular cross section mounted in a cylindrical bore, the ports 16-19 in the housing being separated by "O" rings 28 and the spool outer surface carrying slots 57 to straddle the "O" rings to interconnect the ports. The "O" rings are compressed through spacer rings which are subject to a variable resilient force. The slots 59 have shallow lead in portions and deeper centre ports. <IMAGE>
Patent GB-2134369-A (GB)
Title: An apparatus for securing and picking off split hog-heads
Inventor: WEXEL SVEND
IPC: A22C17/00
Filed: 1984-01-26
Abstract: The apparatus comprises securing units which each comprise a supporting device 4 for the upper jaw of a split hog-head and the associated skull portion as well as a supporting device 5 for the lower jaw of the split hog-head in question. The upper jaw supporting device and the lower supporting device are mutually turnably connected by means of a hinge 15 and comprise securing means 6, 26 and 11, 33, respectively for securing the portions in question of the hog-head adjacent the snout thereof. The lower jaw supporting device furthermore comprises an activating means 16 for activating the turning of the lower jaw supporting device relative to the upper jaw supporting device. This apparatus permits an easy and quick picking off of the meat from a split hog-head, during which procedure the lower jaw is broken off through activation of the activating means. <IMAGE>
Patent GB-2155024-A (GB)
Title: Surface treatment of plastics materials
Inventor: HEINECKE RUDOLF AUGUST HERBERT
IPC: B05D7/24
Filed: 1984-03-03
Abstract: 5 Discontinuities, e.g. scratches, in a plastics surface are removed by exposing the surface to a pulsed radio frequency plasma comprising a mixture of argon and hydrogen. After melting has been effected the surface is exposed to an argon plasma to effect cross-linking to form a smooth surface layer.
Patent GB-2155672-A (GB)
Title: Slide rule
Inventor: ZHANG TIANZE
IPC: G06G1/00
Filed: 1984-04-10
Abstract: Apparatus for determining the shape of a two dimensional blank for the fabrication therefrom of a three dimensional article comprises a slide rule having scales thereupon calibrated according to certain characteristics equations relating the dimensions of the blank and the finished article. <IMAGE>
Patent GB-2140583-A (GB)
Title: Engine control systems
Inventor: SAUNDERS ARTHUR FRANK
IPC: G05B9/03
Filed: 1984-05-04
Abstract: A control system for a gas-turbine engine has two parallel control units 100 and 200, one of which supplies control signals to the engine in response to input signals, such as from the pilot's control lever 105 and from various sensors 104. Each unit has a limiter 113,213 that limits the fuel supply to the engine if the engine speed approaches or exceeds a predetermined maximum. A monitor unit 112,212 in each control unit detects when the limiter has assumed control of the engine for more than a predetermined time, and switches the system to control by the other control unit. The predetermined engine speed may be different for different settings of the pilot's control lever. The monitor unit 112,212 in such an arrangement, may receive signals in respect of the acceleration and deceleration of the engine and switch to the other control unit only when the speed is outside the predetermined speed for the pilot lever setting, and when the acceleration or deceleration is not such as to bring the speed back within the predetermined speed. <IMAGE>
Patent GB-2140754-A (GB)
Title: Sailboard booms
Inventor: ATTEY GRAEME SCOTT
IPC: B63B35/79
Filed: 1984-05-30
Abstract: A sailboard boom comprises first and second elongated members which are connected to one another adjacent their respective ends, wherein each elongated member comprises an intermediate portion having a vertical component relative to the general plane of the boom. <IMAGE>
Patent GB-2144586-A (GB)
Title: A transformer bobbin
Inventor: GARD JOHN EDWARD
IPC: H01F27/30
Filed: 1984-08-03
Abstract: A transformer bobbin (2) has a hollow coil portion (4) for receiving a wound coil, and at least one terminal block (10, 12), the terminal block having a plurality of spaced apart apertures (14) for receiving terminal pins (16). The terminal block is also provided with a plurality of outwardly projecting separator members (30) which are positioned one in front of each aperture (14) and which are for separating wires for connection to the terminal pins (16). <IMAGE>
Patent GB-2170085-A (GB)
Title: Improvements in ground treatment vehicles
Inventor: MACLEAN DUNCAN COLQUHOUN
IPC: A01D34/00
Filed: 1984-08-06
Abstract: A ground treatment vehicle, especially a driven lawnmower, 1, is capable of substantially untended operation. A control means, 6, comprises a cam, 9, which is a representation of the edges of a pre-determined area of ground, eg a lawn, and an elongate steering cord, 18, controlled by the shape of the cam, provides steering instructions to a steering wheel, 2, on the mower. <IMAGE>
Patent GB-2150671-A (GB)
Title: Control valve
Inventor: BETTERIDGE MICHAEL
IPC: F16K47/02
Filed: 1984-12-03
Abstract: A valve for the control of fluid flow which has a passageway defined between an "O"-ring held within a body and a closure mechanism. the mechanism comprising:   (i) a closure member which can be moved between an "open" and a "closed" position. (ii) a substantially cylindrical control porton adjacent the closure member and having longitudinal grooves therein and (iii) a substantially conical control portion having a longitudinally fluted outer surface with its broader cross-section adjacent the control portion so that the passageway cross- section is varied as the closure member moves from its closed to its fully open position. The grooves 16 in the cylindrical portion 15 help to prevent water hammer or noise. <IMAGE>