baber/WOPTO huggingface dataset:
Patent GB-2011651-A (GB)
Title: Random access system in a rotary recording medium reproducing apparatus
IPC: H04N5/76
Filed: 1978-11-22
Abstract: A random access system is provided in an apparatus for reproducing from a rotary recording medium on whose tracks information signals and address signals are recorded. The system includes a reproducing transducer 16 for picking up the signals from the tracks of the rotary recording medium. Address signals from transducer 16 are compared in comparison means 54, 55 with signals representing a selected address and, when the difference in the corresponding addresses is outside a predetermined range the comparison means 45, 55 causes means 20 to move the transducer 16 relatively quickly. However, when the difference between the addresses is within the predetermined range, the transducer 16 is stopped and means 57, 69 for generating a displacement signal corresponding to the difference between the addresses causes tracking control means 37 to move the reproducing element of the transducer 16 a relatively small distance so as to reduce the difference between the addresses to zero with the transducer substantially stopped. <IMAGE>
Patent GB-2010289-A (GB)
Title: Polymer Modified Bitumen
IPC: C08L95/00
Filed: 1978-12-12
Abstract: The invention provides a polymer- modified bitumen comprising Venezualan feed stock bitumen and tetrachain radial teleblock polybutadiene/ polystyrene copolymer of at least 100,000 molecular weight. The components can be readily blended to increase the softening point of the bitumen without undue increase in melt viscosity to give a product of good low temperature flexibility. The proportion of co-polymer, based on the total polymer/bitumen mix, is suitably 10-14 weight %. The copolymers of higher molecular weight, e.g. 180,000, give the best increase in softening point and low temperature flexibility, but for ready blending in the bitumen may need to be fluxed with lube oil also from Venezualan feed stock. The modified bitumen, which can be in admixture with conventional fillers and additives, can be provided as a calendered sheet, or as a coating bitumen or an expansion joint compound.
Patent GB-2010315-A (GB)
Title: Gasification of coal
IPC: C10J3/72
Filed: 1978-12-18
Abstract: A process for gasifying coal (or a coal-derived product) to produce a fuel gas comprises the steps in which an alkaline earth metal is ion-exchanged onto the coal by contact with a solution of an alkaline earth metal compound, the resulting ion-exchanged coal is separated from the solution and then mixed with an alkali metal compound, and the resulting composition is gasified to produce a fuel gas. When the coal has insufficient ion-exchange sites (e.g. in the case of a high rank coal), the number of ion-exchange sites is increased either by (1) contacting, heating and soaking the coal in an alkaline solution of an alkali metal compound (preferably a solution comprising alkaline earth metal oxide or hydroxide and an alkali metal compound) or (2) oxidation with an oxidizing agent such as air, peroxygen compound, or oxidizing acid. The gasification rate of the compositions used is faster than that of physical mixtures of coal, alkaline earth and alkali metal compounds.
Patent GB-2014675-A (GB)
Title: Disc Brake Assembly
IPC: F16D55/224
Filed: 1979-02-12
Abstract: An automotive disc brake assembly comprises a rotary disc 7, a stationary member 1 having two force receiving portions 12, 13, a caliper 2 carried on the stationary member by means of two retaining pins 3, 4 slidably guided in bores 16, 17 formed in the force receiving portions and straddling the disc and two friction pads 8, 9 on the opposite sides thereof, a transverse member 18 connecting the two force receiving portions together, and an elastomeric bushing 3A interposed between the retaining pin on the trailing side in the direction in which the disc is rotated during forward running of the vehicle and the bore 16 guiding the same, whereby deformation of the stationary member due to the force exerted thereon is minimized eliminating non- uniform wear of the friction pads. <IMAGE>
Patent GB-2019604-A (GB)
Title: Apparatus for marking strip material
IPC: G03D15/00
Filed: 1979-04-25
Abstract: This invention relates to apparatus for marking strip material such as cinematographic film F, the apparatus comprising means for feeding the film from a film supply station 14 to a film take-up station 18 via a printing station, means for feeding a tape 40 carrying transferable marking material from a tape supply station 42 to a tape take-up station 46 via the printing station, said printing station including two movable members one carrying a printing block 24 and the other carrying a back-up platen 26, the apparatus being arranged such that at said printing station the film and tape move between said two members in a superimposed relationship and such that when the printing block and platen are moved into co- operating, adjacent, relationship, selected print elements on the printing block cause marking material to be transferred from the tape to the strip material thereby to mark or print the strip material with data indicated by the selected print elements. <IMAGE>
Patent GB-2049554-A (GB)
Title: Transfer printing of films, sheets and foils
IPC: B41M5/035
Filed: 1979-05-18
Abstract: A process for the transfer printing of plastics material in the form of a film, foil, tape or sheet, employing a temporary support carrying sublimable colouring material which is to be printed, involves forming an assembly of the plastics material, and the temporary support, with the colouring material-carrying face of the temporary support in direct contact with a surface of the plastics material, and effecting heating of the assembly through a sheet of material which is applied against that surface of the plastics material opposite to the surface in contact with the temporary support.
Patent GB-2024844-A (GB)
Title: Pleochroic dyes and electro- optical displays therewith
IPC: C09B1/28
Filed: 1979-05-22
Abstract: A composition suitable for use in electro-optical display devices has a positive dielectric anisotropy and comprises at least one nematic liquid crystal material having positive dielectric anisotropy and from 0.01 to 50 percent by weight of pleochroic dyestuff of the general formula:   <IMAGE>  wherein substituents (NRR') and Q may be in positions 1 through 8,  Q is F, Cl, NO2, NH2, NH(Alk), OH,  x is 0, 1, 2, 3,  m is 1 or 2  R alone is H,  R' alone is cyclohexyl, bicyclohexyl or -(CH2)DAr  where p is 0, 1 or 2 and Ar is aryl of 6 to 10 carbon atoms substituted as in the 4 position by -NHCOCH3, CN, -CnH2n+1, cyclohexyl   &lparstr& Alk &rparstr&  cyclohexyl or   <IMAGE> where y is 0 or 1,  Y is CH2, O, S or OCH2,  Z is a 4-substituted H, NO2, CN, -CnH2n+1, F, Cl or when y=0 also -C6H5, and in from 0 to 2 further position by CN, -CnH2n+>1, NH2 or OH wherein n is 1 to 20 and Alk is alkyl of 1 to 8 carbon atoms.
Patent GB-2026543-A (GB)
Title: De-watering of metal surfaces
IPC: C25D5/48
Filed: 1979-06-07
Abstract: After a metal finishing treatment by means of an aqueous solution that forms a surface of free metal, or comprising metal ions, exposed to the environment, the surface is rinsed, contacted with a soap solution and subjected to a final rinse. The treatment provides enhanced corrosion resistance and rapid spontaneous de-watering after the final rinse.
Patent GB-2023287-A (GB)
Title: Multiple analysis hematology reference control reagent and method of making the same
IPC: G01N33/96
Filed: 1979-06-14
Abstract: A single diagnostic test control reagent comprising a suspension of red blood cells and platelets in a saline medium which includes urea can be used as a multiple-analysis hematology reference control for monitoring the precision and accuracy of determinations of red blood cell, white blood cell and platelet blood cell count, hemoglobin content, hematocrit, mean cell volume and mean platelet volume determination, red cell distribution width, and platelet distribution width determination, and determination of mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, and thrombocytocrit, and is suitable for use in automated, semi-automated or manual methodologies. The reagent may be made by mixing a stabilized suspension of human or animal platelets, a conventional whole blood haematology control, urea and sodium chloride and allowing the resulting suspension to stabilize.
Patent GB-2028086-A (GB)
Title: Combine harvester with straw chopper
IPC: A01F12/40
Filed: 1979-07-20
Abstract: In a combine harvester with a rigidly mounted straw chopper arranged at the end of a straw discharge channel, a portion 8 of the wall of the straw discharge channel is pivotable so that in a first position it covers straw discharge aperture 7 in the straw hood of the harvester housing, whilst in a second position (as shown) it covers the inlet aperture to the chopper. A wall portion 9 of the straw discharge hood is pivotable to increase the size of the straw discharge aperture (as shown) when wall portion 8 of the straw discharge channel is in its second position. <IMAGE>
Patent GB-2034456-A (GB)
Title: Burner
IPC: C10J3/50
Filed: 1979-09-28
Abstract: The invention relates to a burner for the vaporisation of coal dust to supply a reactor. The burner comprises a plurality of coal dust/carrier gas supplies 2 with a circular cross-section which merge in the burner housing 3 into sections of circular rings of the same diameter arranged concentrically round a central pipe 1 conveying vaporisation medium, which sections are equal in area to the associated coal dust/carrier gas supply over the whole distance of a profile change in the cross-section of flow and which, together, form a substantially closed but not joined 360 DEG  circular ring at the burner mouth, as a result of which a uniting of a plurality of streams of dust is effected and a symmetrical uniform distribution of dust is ensured in the combustion reaction chamber. <IMAGE>
Patent GB-2036798-A (GB)
Title: Electrolytic Process
IPC: C25B9/17
Filed: 1979-10-15
Abstract: A process for electrolysing at least a proportion of a liquid comprising an electrolyte which process comprises passing the liquid from inlet 7 between electrodes 17, 18, at least one of which is an anode and at least one of which is a cathode, the liquid being in a state of laminar flow substantially parallel to the electrodes, the electrodes being disposed substantially horizontally above each other and each electrode being permeable to the product(s) or solutions thereof produced at or adjacent the electrode and, where a density difference is generated on production of the products, the relative disposition of the electrodes is such that the density difference reduces the possibility of the product(s) produced at or adjacent the anode mixing with the product(s) produced at or adjacent the cathode. Liquid electrolysis products exit via ports 8 and 9, and the gaseous products leave via port 10. The process is especially applicable to the electrolysis of brine. <IMAGE>
Patent GB-2039894-A (GB)
Title: Resolution of DL-cis and DL-trans chrysanthemic acid.
IPC: C07C51/487
Filed: 1979-12-07
Abstract: A process for resolving DL-cis or DL-trans chrysanthemic acid which comprises reacting the said acid with L or D N-methyl-ephedrine in an organic solvent, separating the L N-methyl- ephedrine salt of D-cis or D-trans chrysanthemic acid or the D N-methyl- ephedrine salt of L-cis or L-trans chrysanthemic acid thus crystallised and subjecting the said salt to acid hydrolysis whereby the desired D-cis or D-trans chrysanthemic acid or L-cis or L-trans chrysanthemic acid is obtained.
Patent GB-2039862-A (GB)
Title: Process for Regenerating Sulfur Dioxide Gas Scrubbing Solutions
IPC: B01D53/50
Filed: 1979-12-21
Abstract: In a process for removing sulfur dioxide from gas streams, particularly waste or flue gases, by contact with aqueous scrubbing solutions containing a metal salt, such as ferric sulfate, in which the valence of the metal is reduced by the sulfur dioxide, the regeneration of the scrubbing solution is effected by electrolytic or anodic oxidation (rather than air oxidation) of the reduced metal salt. Anodic oxidation is not adversely, affected by the increase in sulfuric acid content of the scrubbing solution which results from the conversion of the sulfur dioxide absorbed in the scrubbing solution.
Patent GB-2044322-A (GB)
Title: Apparatus for well logging while drilling
IPC: E21B47/18
Filed: 1980-03-07
Abstract: A monostable, solenoid-operated valve in a passage which bypasses the drilling fluid pressure drop across a drill bit (34) at the lower end of a drill string (30) in a well opens and closes in response to downhole conditions to create pressure pulses in the drilling fluid. The valve (166) is urged toward a closed position by drilling fluid pumped through the drill string. A larger force is required to open the valve than to hold it open. Current supplied to the solenoid (67, 70) is thereafter reduced to a value sufficient to hold the valve open. The solenoid is deenergized to close the valve.
Patent GB-2079612-A (GB)
Title: Racket stringing machine
IPC: A63B51/14
Filed: 1980-06-23
Abstract: A racket stringing machine comprises means for clamping a racket frame on a platform, a main string clamp for holding a string to be tensioned, a secondary string clamp for holding a tensioned string and string tensioning means positioned outside the racket frame area. The string tensioning means and the platform are relatively rotatable about the racket frame area. The string tensioning means comprises a head for gripping a string to be tensioned which is movable along a path generally radial to the racket frame area to apply tension to a string held in the clamping head, movement of the clamping head being actuated by a torque drive mechanism. A torque responsive release mechanism is preset to release the torque and a locking mechanism holds the clamping head in the tensioned position. <IMAGE>
Patent GB-2053881-A (GB)
Title: Process for producing potassium sulphate
IPC: C01B7/03
Filed: 1980-07-21
Abstract: K2SO4 is produced by reacting KCl with H2SO4 using 2.0 to 2.2 mols of KCl per mol of H2SO4 with stirring at from room temperature to 100 DEG C, and the resulting KHSO4 is reacted e.g. in a muffle furnace with unreacted KCl at 300 DEG  to 400 DEG C. By this two- step process, overall reaction can be carried out at lower temperature and in shorter time, and long term continuous operation is possible.
Patent GB-2063717-A (GB)
Title: Multi/omni directional fettling apparatus
IPC: F27D1/16
Filed: 1980-09-04
Abstract: A multi/omni directional fettling apparatus 1 for the hot repair of refractory linings comprises a hopper 2 adapted to contain refractory material and having an open, lower, discharge end 3 through which refractory material is fed via one or more apertures 17 to a rotary plate 4 located beneath the discharge end 3, each aperture 17 having a control gate 18 displaceable between a closed position 18A and at least one open position 18B, each gate 18 being spring loaded into a selected position and releasable by hand against the spring loading when adjustment to a new position is required. <IMAGE>
Patent GB-2061682-A (GB)
Title: Improvements in and relating to agricultural appliances
IPC: A01B13/08
Filed: 1980-10-24
Abstract: Agricultural appliances comprising tines are known and it is well known that difficulties can arise when a tine encounters a clod or other soil irregularly because of stresses then imposed on the line. The problem has been met in the past by pivotal connection of the lines to the appliance carriage so that a soil irregularity causes lateral displacement of the line and avoidance of undue stress. This requires that the line axis and pivot axis diverge upwardly, and that lengthy connecting members are used between the tine and pivot, in order to ensure a trailing action of the tine in use. The invention overcomes both problems by pivoting a tine 9 by a pin 4 to an appliance carriage with the axis of pin 4 non-convergent upon the line shank axis in a groundward direction so that the line leading edge can be maintained rearward of the pivot axis using only a short connecting clasp in the form of member 6. <IMAGE>
Patent GB-2087733-A (GB)
Title: Artificial hare for greyhound track
IPC: A63K1/02
Filed: 1980-11-22
Abstract: A device is for controlling an artificial hare and comprises a trolley (10) propelled along a single rail (14) with a laterally projecting arm (32), to the outer end of which the hare is attached by a line (60). Mounted on the trolley is a motor (12) connected to a driving wheel (16) and controllable by a radio-control unit constructed on known design principles. The laterally projecting element incorporates a wing (34) in the form of an aerofoil such that as the trolley progresses round the rail the wing will bear at least some of its own weight and take up any uneven load on the trolley. The laterally projecting element is attached to the trolley (10) by a pivot, the trolley itself also incorporating a unit (46) operated by the radio-control unit allowing the lateral arm to be folded in towards the side of the trolley. The hare (19) can be wound into the wing after the race out of reach of the dogs. <IMAGE>
Patent GB-2073622-A (GB)
Title: Applying contacts to conductors
IPC: H02B11/04
Filed: 1981-04-13
Abstract: In the provision of a contact surface on a bar of aluminium, machined ends 4, 5 of a bus bar 1 receive a housing in the form of a "U" formed by bending of a composite cut-out element 8 formed of copper and aluminium. The housing is then welded by its two arms 9, 10 to the bus bar at points 30-33 and the arms are then compressed to provide plane external surfaces. The housing has projecting edge portions 16-19 and a cross piece 11 which has an aperture 24 and stop surfaces 26, 27. <IMAGE>
Patent GB-2085575-A (GB)
Title: Multi-fuel Burner
IPC: F23N5/00
Filed: 1981-05-15
Abstract: Pulverized solid fuel is burned in a multi-fuel burner comprising an oil burner 3 and/or gas burner 5 designed to establish a flame with a turbulent root. The pulverized solid fuel is directed into the side of the flame just downstream of the flame root through a convergent nozzle 12. This provides rapid mixing and complete combustion of the pulverized solid fuel and enables gas and liquid fuel burners to be easily converted for burning pulverized solid fuel. Figure 1. <IMAGE>
Patent GB-2100699-A (GB)
Title: Tape applicator
Inventor: BROWN LEONARD LOUIS
IPC: B65H35/07
Filed: 1981-06-18
Abstract: A device 10 for applying tape 16 to a surface, in particular, to the plastic cover of a greenhouse, comprises a carriage 12 on which is rotatably mounted a tape reel 14. In use the tape 16 passes around a guide roller 30 and then beneath a pressure roller 28. The carriage 12 may be moved over the surface by an operator remote from the device by means of two pairs of guide cords 18 which are fixed to eyes 34 and 36 at the front and rear of the carriage 12. Since the eyes 34 are further from the surface than the eyes 36, there is a resultant force on the carriage 12 in such a direction as to urge the pressure roller 28 into contact with the surface when both the forward and rear guide cords 18 are taut. The roller 28 may have a concave surface. <IMAGE>
Patent GB-2097971-A (GB)
Title: Electronic timepiece
IPC: G04G9/00
Filed: 1981-01-11
Abstract: An electronic timepiece having voltage regulation, temperature detection and battery voltage detection means provided on the same integrated circuit as is used for timekeeping circuitry, and having external terminals for stepwise weighted adjustment of timekeeping gain/loss.
Patent GB-2086319-A (GB)
Title: Improvements relating to lever biasing mechanisms
IPC: B62K25/28
Filed: 1981-09-07
Abstract: A mechanism is provided for biasing a lever 2 which may be the support arm for the wheel of a motor bicycle. The lever 2 is connected directly to a support 1 through a pivot 3 and a pair of control links 8 and 9 are pivoted together at a common pivot 7 and respectively by pivots 10 and 11 to the support 1 and the lever 2. The common pivot 7 also carries the end of a shock absorber 4 whose other end is pivoted to the support 1. Movement of the lever 2 in the direction of the arrow 12 will be resisted by the shock absorber 4 which acts to force the control links 8 and 9 out of alignment. The arrangement is such that a linear rate of movement and load of the lever 2 will produce a non-linear rate of operation of the shock absorber 4 and vice versa. The end of the shock absorber 4 need not be connected directly to the common pivot 7 but could be pivotally connected to an intermediate or extended portion of one of the control links. <IMAGE>
Patent GB-2088013-A (GB)
Title: Fastening Means
IPC: F16B12/26
Filed: 1981-09-29
Abstract: The invention relates to a panel component (2) having an outer decorative surface and an inner surface provided with a rigid apertured bracket (4) adjacent one edge surface and a stiffly compressible projection (8) adjacent the opposite edge surface so that four panels may be permanently interlimited in a rectangular layout by forcing the projection (2) of each panel into the aperture (6) of the bracket (4) of its neighbouring panel. A shoulder portion (10), after being compressed during assembly, regains its normal width, greater than that of the aperture 6, and provides permanent locking means. <IMAGE>
Patent GB-2109689-A (GB)
Title: Appliances for use in the treatment of rheumatism, arthritis and other ailments
Inventor: MIDDLETON FRANK ALAN
IPC: A61N1/24
Filed: 1981-10-28
Abstract: A belt 1 comprises an insert, in the form of an elasticated fabric band 2, which is stitched at one end to a fabric band 4 made of relatively inelastic material, and at the other end 5 to two Velcro strips 6. Two further Velcro strips 9 are stitched to the opposite end 7 of the belt 1 so to enable the two ends of the belt 1 to be fastened together. Two flexible copper strips 13, 14 are attached to the inside of the band 4 and retained in close proximity to, or in contact with, the affected area during movement. In another form of the appliance the copper strips are attached to the inside of a sleeve of elasticated material. <IMAGE>
Patent GB-2111442-A (GB)
Title: Three-wheeled vehicle
Inventor: MCCAW WILLIAM FERGUSSON
IPC: B62K5/05
Filed: 1981-11-09
Abstract: A three-wheel motor vehicle has a central rear wheel and spaced steerable front wheels which are driven by a front mounted transverse engine and transmission unit. This arrangement offers the combination of maximum stability and front wheel drive and steer with the maximum weight on the front wheels. The key feature is the stability base correctly disposed in such manner that all weight transfer from back to front due to track gradient, forward or transverse, or braking is absorbed by a progressive width of base. This stability feature automatically accommodates the front wheel drive and steer assembly which is incorporated in the transversely mounted engine and transmission unit which in turn meets the requirement of weight in front and the adhesion for driving, braking and steering. All the components necessary for this front end design are already known and used on 4 wheeled chasses but the important stability feature is peculiar to the 3-wheeled chassis. <IMAGE>