baber/WOPTO huggingface dataset:
Patent GB-2142190-A (GB)
Title: Antenna with unbalanced feed
Inventor: HATELY MAURICE CLIFFORD
IPC: H01Q9/16
Filed: 1984-06-13
Abstract: In general a coaxial feeder connected directly into the centre of a half-wave dipole antenna disturbs electrical balance and therefore reduces the effectiveness of the screen of the feeder. In the present invention a dipole with two quarter-wavelength elements 23 and 24 symmetrically connected through identical capacitors 27 and 26 to the screen of the feeder 25 is fed through an inductor 28 connected to the junction between the element 23 and its capacitor 27. By having equal reactances the capacitors 26 and 27 balance the dipole to earth and by means of its phase delay the inductor 28 restores a resistive impedance termination for the feeder 25. In an alternative arrangement Fig. 5a ground plane 29 replaces the element 24 and capacitor 26. <IMAGE>
Patent GB-2144087-A (GB)
Title: Hydraulic steering system for motor vehicles
Inventor: LIEBERT KARL-HEINZ
IPC: B62D12/00
Filed: 1984-07-05
Abstract: A hydraulic steering system for motor vehicles comprises a steering axle (8) and an additional frame pivot (12) for the further reduction of the turning circle of the steering axle. When the steering axle (8) is within its turning range, the frame pivot (12) is locked by a lock (22, 23, 24) controlled by a change-over valve (13). In this condition, only the working cylinder (7) of the steering axle (8) is controlled by the change-over valve (13). When the steering axle (8) reaches its maximum angle of turn, further rotation of the steering wheel (1) automatically operates the change- over valve (13) by virtue of a temporary pressure increase, and the locking of the frame pivot (12) is released. The wheels of the steering axle (8) are now maintained hydraulically in the position of maximum angle of turn of the latter, while the working cylinders (10, 11) of the frame pivot (12) are controlled by the working pressure in order to further reduce the turning circle. In an alternative embodiment, the vehicle frame is non-articulated and the further reduction in the vehicle's turning circle is achieved by steering the rear axle. <IMAGE>
Patent GB-2164479-A (GB)
Title: Methods of recording audio signals
Inventor: WILKINSON JAMES HEDLEY
IPC: H04N5/782
Filed: 1984-09-10
Abstract: In a method of recording digital audio signals of four audio channels in association with a digital video signal in oblique tracks using a 4-head digital video tape recorder, the digital audio signals are assembled into error-correction blocks each comprising two audio data words and two error-correction code check words, each oblique track comprises in sequence first and second sectors at the beginning of the track, a central portion in which the video signals are recorded, and third and fourth sectors at the end of the track, the audio data words and the check words are distributed to the four heads to be recorded in the sectors, and the assembly, the error-correction code and the distribution are such that the four audio channels can be correctly reproduced even if, on reproduction, any two of the sectors are lost from each reproduced track, or any two of the four heads fail to supply a reproduced output.
Patent GB-2154615-A (GB)
Title: Dyeing assistants
Inventor: HELLER JURG
IPC: D06L3/12
Filed: 1985-01-02
Abstract: Polymeric compounds (A) obtained by the reaction of epihalohydrin with a polyalkylene polyamine are useful as textile treatment agents. As pretreatment agents they improve the color yield of the subsequent dyeing, as aftertreatment agents they improve fastness properties. Certain of the products (A) are novel.
Patent GB-2153417-A (GB)
Title: Panel assembly and connecting piece and method for assembling thereof
Inventor: MOGENSEN ERLING KRISTEN
IPC: E01C9/00
Filed: 1985-01-23
Abstract: A panel assembly is composed of cover panels (1) which are connected to each other along their parallel lateral edges, where they each have preferably oblong plots (4) which accommodate hook-formed coupling projections (5) on connecting pieces (6), which extend between at least two, preferably four cover panels (1) in bond, and which after insertion of the coupling hooks (5) in the slots (4) are displaced longitudinally into a locking position, in which there is engagement between the coupling hooks (5) and the slot edges. In order to obtain a stable assembly allowing easy replacement of single panels the open parts of the coupling hooks (5) on connecting pieces lying end to end turn alternately towards and away from each other, and after the insertion of the coupling hooks (5) into the slots (4) the connecting pieces (6) are moved towards and away from each other, respectively, in the resulting space between two connecting pieces (6) thus displaced away from each other an arresting piece (7) being inserted, which substantially fills out the space. <IMAGE>
Patent GB-2170184-A (GB)
Title: Loading and unloading mechanism
Inventor: RAISIO REIJO JUHANI
IPC: B60P1/64
Filed: 1985-01-29
Abstract: A mechanism for loading and unloading a container or platform over the rear of the vehicle includes an arm (120) (herein called a hook arm) at one end of which is disposed a hook or gripping member by which the mechanism can be connected to a container or platform. The arm (120) forms part of a linkage which is operable by sequential extension of a first ram (130) and a second ram (140). The arrangement of the linkage is such that sequential operation of the rams shifts the hook between a first or loaded position in which the linkage is located wholly beneath the container or platform and a second or 'pick-up' position in which the hook or gripping member is disposed substantially at ground level at the rear of the vehicle. Such a mechanism requires less space above the vehicle, and is foldable to lie flat beneath a loaded container.
Patent GB-2154899-A (GB)
Title: Stiffening materials, a process for their production and the use thereof
Inventor: HAUSCHILD DR ELMAR
IPC: C14B7/04
Filed: 1985-02-08
Abstract: This invention relates to stiffening materials, particularly for leather, consisting of a woven textile fabric, worded fabric or non-woven fabric, paper, plastics film or metal film and a thermoplastic plastics layer sintered thereon, or of such a plastics layer alone, characterised in that the plastics layers consists, apart from optional fillers, of two polymer constituents which melt in different temperature ranges, the polymer constituent which melts in the higher temperature range being present in an amount of 5 to 40% by volume based on the unsintered mixture of the polymer constituents.
Patent GB-2160023-A (GB)
Title: Waveguides incorporating radar receiver protection devices
Inventor: WATSON BARRY KENNETH
IPC: H01P1/15
Filed: 1985-03-26
Abstract: A receiver protection device for a radar system comprises a rectangular waveguide 1 in which each of two opposite walls 2, 3 of the waveguide has at least one, preferably several, transverse corrugation slots 4, 5 opposite one another, and each slot contains at least one pin or varactor diode 6 extending across it midway between the ends of the slot. In one form of the device the slots have a depth which is approximately a half wavelength at the operating frequency so that when the diodes 6 are off the slots present substantially zero impedance to signals at the operating frequency in the waveguide 1, thereby permitting low loss transmission of the signals. The depth of the diodes 6 is approximately a quarter wavelength at the operating frequency so that when they are switched on they form short circuit planes 12 in the slots at this depth, thereby presenting an infinite impedance to signals at the operating frequency in the waveguide 1 and preventing transmission of these signals. <IMAGE>
Patent GB-2168736-A (GB)
Title: Machine for sinking shafts
Inventor: BLOCK ULRICH
IPC: E21D1/06
Filed: 1985-12-20
Abstract: A machine for sinking shafts comprises a circular ring-shaded supporting frame (1) secured by external peripheral clamping members (11a) inside a shaft (15), a carrying frame (2) displaceable relative to the supporting frame by guiding means (1a, 2a) and driving means (3), and a circular ring-shaped rotating frame (4) underneath and which can rotate peripherally in the carrying frame. On this rotating frame there is mounted a swivellable cutting arm (6), the cutting head (7) on which can reach any point within a given shaft diameter by suitably swivelling the cutting arm and rotating the rotating frame. Hydraulic units (8, 9, 13) are provided to displace the carrying frame (2) relative to the supporting frame (1), rotate the rotating frame (4) and swivel the cutting arm (6). The machine is adapted to the fully mechanised sinking of shafts, more particularly inter-gallery and freezing shafts, and can also be used to cut into solid rock. <IMAGE>
Patent GB-2185825-A (GB)
Title: Spatial stereoscopic image system using concave mirror
Inventor: SANDERSON JOHN CHARLES
IPC: G02B30/30
Filed: 1986-01-23
Abstract: A binocular image is produced in space 5 in front of the apparatus without using special spectacles. The image, which can be dynamic and in full colour, is produced as a reflection in a concave spherical mirror 2 of a pair of source images 3 & 4, one for each eye. The final image can be restricted to one observer 1 or viewed by a group of observers by using a suitable directional array 6. <IMAGE>
Patent GB-2186328-A (GB)
Title: Turbine housings for turbochargers
Inventor: SHIMIZU MASAMI
IPC: F01D9/02
Filed: 1986-02-11
Abstract: A turbine housing for a turbocharger comprises two housing sections 2a, 2b separated in the axial direction and a partition plate 7 clamped between these sections thereby dividing the interior of the housing into two pathways 4a, 4b. The coefficient of thermal expansion of the partition plate may be less than that of the housing sections. The housing sections preferably define a groove 6 which accommodates the outer edge of the partition plate and there may be a clearance 'C' between the bottom of the groove and the outer edge of the partition plate. The partition plate may have a corrugated section adjacent its outer edge. <IMAGE>
Patent GB-2177644-A (GB)
Title: Electrode-instrument and methods for electric discharge broaching of openings in parts
Inventor: ABDUKARIMOV ERKIN TUKHTAEVICH
IPC: B23H9/14
Filed: 1984-07-31
Abstract: The invention relates to machining by electroerosion. The electrode tool forming the subject of the invention is of the type comprising a central electrode 1 made of a conductive material, mounted coaxially in a sheath 6, and is characterised in that the central electrode 1 is arranged with a certain spacing with respect to the sheath 6 and extends beyond the active end of the latter on the workpiece 7 to be machined side. The invention finds applications, preferably, in the spark-erosion machining of conductive materials, especially materials which are difficult to machine (extra-hard, having high impact strength). <IMAGE>
Patent GB-2190563-A (GB)
Title: Telephone answering machine
Inventor: TSENG HENRY
IPC: H04M1/65
Filed: 1986-05-16
Abstract: A telephone answering machine has first and second storage media for respectively recording incoming messages and retaining one or more outgoing messages to be transmitted when the machine answers incoming calls. The machine is adapted to retain a permanent record of one or more outgoing messages and includes transcription means operable to transfer such message or messages to the second storage medium particularly in the event that they are lost or erased therefrom. Particularly where the second storage medium 28 requires energy from a power source to retain messages thereon, the machine may be adapted to automatically effect such transcription in response to restoration of power after it has been cut off for some reason. The first storage medium is commonly a magnetic tape, and a suitably identifiable portion thereof may be used to retain permanent record of an outgoing message. The preferred second storage medium is a voice synthesizer. <IMAGE>
Patent GB-2180540-A (GB)
Title: Genetically engineered microorganisms for production of L-amino acid
Inventor: LOVINGER GERALD G
IPC: C12P13/04
Filed: 1986-09-19
Abstract: A thermally stable transminase gene from Salmonella typhimurium (eg the AT sty 2 gene) is isolated and inserted into a multiple copy expression vector which is introduced into a suitable host microorganism strain eg E. coli S. typhimurium. L-amino acids can be produced by contacting the corresponding alpha- keto acid and an amino donor with the transformed strain or a portion or extract thereof. Activity is up to about thirty times that of the untransformed host strain.
Patent GB-2188584-A (GB)
Title: Apparatus for briquetting coal
Inventor: MONROE JAMES CANTFIELD
IPC: C10L5/08
Filed: 1987-03-13
Abstract: A press having a chamber within which the material is to be compressed by the application of shear forces thereto, the chamber being enclosed by at least three wall members (31-35 Figure 1) at least two of which being movable to compress the material, wherein no two of the wall surfaces are perpendicular and each wall surface is inclined to its adjacent wall surfaces by an acute angle. Also disclosed is a press for briquetting coal which has a plurality of walls enclosing a chamber including two opposed end walls which apply an axial force to coal particles, and at least two walls (25 Figure 4) movable in a direction perpendicular to said axial force so as to subject the particles to shear forces and form briquettes (21). Also disclosed is a press for compacting particulates having opposed end walls, at least two wall members defining a chamber with said end walls, at least one of said two wall members being movable to subject the particulates to shear forces. <IMAGE>
Patent GB-2188055-A (GB)
Title: Hydrophilic polyurethane foams
Inventor: KIAMIL SINAN BEHAEDDIN
IPC: A61L15/42
Filed: 1987-03-19
Abstract: Hydrophilic polyurethane foams containing residues of a polyalkylene glycol monoalkyl or alkaryl ether may be produced by reacting the ether with an isocyanate having a functionality of greater than two and using only stoichiometric amounts or small excesses e.g. up to 12% of weight of water as foaming agent. Methyl, lauryl, cetyl, octylphenyl and nonyl phenyl ethers may be used. The foams are applicable for the manufacture of absorptive devices such as wound dressings, sanitary towels, diapers, incontinence pads or tampons.
Patent GB-2191207-A (GB)
Title: A substitute for amino and phenolic resins
Inventor: MARKESSINI EFTHALIA VERGOPOULO
IPC: C08G12/02
Filed: 1987-04-28
Abstract: A substitute for amino and phenolic resins is used in the polycondensation of such resins based on formaldehyde for bonding water penetrable cellulosic particles. The substitute comprises an aqueous solution of   a) either at least one aldehyde together with at least one amide and/or together with at least one phenol, or a non-resinous condensation product of formaldehyde and urea, and b) a sugar or a sugar derivative or their by-products or a starch or its degradation products or a mixture thereof, and/or   c) a raw and/or treated lignosulfonate.   This substitute also reduces the free formaldehyde of the resulting board without impairing the other properties thereof.
Patent GB-2203958-A (GB)
Title: Audio-visual equipment
Inventor: LYNCH STEWART
IPC: G03B23/10
Filed: 1987-04-30
Abstract: Audio-visual equipment comprises a sound-reproducing device, such as a tape cassette player 11, and a picture- projection device 13 contained within a single housing 10. The equipment can be located on a horizontal support surface and pointed upwardly to project onto a ceiling or forwardly onto a wall. Preferably, the projection device 13 comprises a lens 14, bulb 15, reflector 16 and a slot 31 into which a disc (30, Fig. 3) bearing transparencies (32) may be inserted. The disc (30) may be rotated in synchrony with the sound output from the cassette player. <IMAGE>
Patent GB-2201456-A (GB)
Title: Pivot assembly for clothes airer
Inventor: FIRTH ANGUS CHRISTOPHER
IPC: D06F57/08
Filed: 1988-01-29
Abstract: A clothes airer comprises an adjustable framework apparatus having at least two frame-supporting disc-like members 8, 10, 12 mounted for relative angular movement about a common axis 32, said movement being restricted by virtue of one of said members having, at one face, at least one projection 20 parallel to said axis and engaging in an arcuate slot 30 defined by a wall perpendicular to a face of another of the members. Preferably each of the disc-like members has, at its respective faces, both a projection and means defining a slot, and the apparatus comprises a plurality of such discs rotatably mounted on a common axis, each supporting one end of a garment-supporting frame element 2 and with the projection of one engaging in the slot of another. <IMAGE>
Patent GB-2206742-A (GB)
Title: A permanent magnet electric motor having keeper ring
Inventor: WANG PATRICK SHUI-CHUNG
IPC: H02K23/04
Filed: 1988-06-09
Abstract: A p.m.d.c motor comprises a metal casing (10) housing one or more stator magnets (22, 23) and a wound armature (13). Instead of using sintered ferrite magnets, shorter high energy magnets are used. A mild steel keeper ring (24) is interposed between the magnets and the casing to avoid the need to change existing tooling for the motor casings and armature lamination stacks and provide a thicker return path for the magnetic field. <IMAGE>
Patent GB-2207699-A (GB)
Title: Lid regulating device of sun roof structure
Inventor: TAKAHASHI JUN
IPC: B60J7/05
Filed: 1988-07-13
Abstract: A guide rail 17 extends along each side of a motor vehicle sun roof opening. A first sliding shoe 19a engaged with a rail 17 has an externion pivoted at P to a front portion of the sun roof lid, the extension having a stopper opening 39. A stopper structure includes a holder 25 secured on the rail 17, a stopper pin 27 movably held by the holder 25, and a spring 37 for biasing the pin 27 outwardly. The pin projects into the opening 39 when the lid is brought to its fully closed positon, to prevent forward-rearward motion of shoe 19a. The shoe has boss 35 wedging into recess 33 of holder 25 to suppress upward and downward lid movement. When the lid is pivoted downwards for rearward sliding, lever 29 pivoted at 41 on shoe 19a is pressed downwards by lever projection 45 so that lever projection 43 presses pin 27 from shoe opening 39 to release the lid. A second sliding shoe engaged with the rail 17 supports a rear portion of the lid and mounts a lift mechanism to tilt the lid up and down about its front portion. 
<IMAGE>
Patent GB-2214481-A (GB)
Title: Package, method of packaging and packaging apparatus
Inventor: LIGHTFOOT GERALD
IPC: B65B25/02
Filed: 1988-08-15
Abstract: The package is formed from heat sealable longitudinally folded sheet material 38 and comprises a first folded edge portion 38 extending in a first direction and seams S1, S2 making an acute angle with the first direction and converging, travelling away from the edge portion 38. The package may be left open along the edge opposite the folded edge or closed by further seams S3, S4 parallel with the first edge portion 38 (Figs. 5 & 7). The package is made by a method using a heat sealing apparatus in which sheet material 28 is fed in a direction B to a heat sealing assembly having heat sealing bars 14 which can be pivoted towards and away from a support table 20. The bars are inclined at adjustable acute angles to either side of a line extending at right angles to the direction B and to the axis A about which the bars 14 are pivoted. One seam S1 may be sealed by the upstream bar 14 and the other seam S2 by the downstream bar. The package, apparatus and method are especially suitable for packaging generally triangular articles. <IMAGE>
Patent GB-2209643-A (GB)
Title: Pulse compression radar
Inventor: DAMES ANDREW NICHOLAS
IPC: G01S13/28
Filed: 1988-09-02
Abstract: Radar apparatus comprises a transmitter (2), an antenna (4), and a receiver (7). The transmitted signal is encoded (8), and the same code (76) stored in the receiver (7) is used in the time-compression (by unit 75) of received, digitised IF signals. The receiver periodically adapts itself by processing a test sample (5, 6) of the encoded signal for transmission, adjusting the code in the store (76) accordingly. <IMAGE>
Patent GB-2209617-A (GB)
Title: Emergency signal device
Inventor: ABU-NIJAILA VALERIE ANN
IPC: G08B5/00
Filed: 1988-09-06
Abstract: A signal device, devised for use to indicate the occurrence of an emergency, especially one involving an individual at an isolated location, comprises an inflatable balloon, a container for gas under pressure connected to supply gas to the interior of the balloon, valve means disposed to control gas flow from the container to the balloon, and a flexible line, secured at a first end thereof directly or indirectly to the balloon and having attachment means at its other end.
Patent GB-2211188-A (GB)
Title: New crystal form
Inventor: BRADLEY GERALD
IPC: C07D401/06
Filed: 1988-12-14
Abstract: A stable crystal form of anhydrous, crystalline 1,4-dihydro-2-(imidazol-1-ylmethyl)-6-methyl-4(3-nitrophenyl) pyridine-3,5-dicarboxylic acid 3-ethyl 5-methyl diester hydrochloride, is useful as an antihypertensive or anti thromotic agent.
Patent GB-2213931-A (GB)
Title: Rotor blade tracking device
Inventor: HADLEY MAXWELL RICHARD
IPC: G01S17/74
Filed: 1989-01-13
Abstract: An apparatus for tracking a rotating blade to determine parameters associated with the rotation of that blade is disclosed. In one embodiment the apparatus includes a detector 1 in which at least two sensing photodiodes 9, 10 define substantially fan shaped detector planes 2, 3 and are arranged to sense an illuminated point 5 at a known location on the blade passing through said planes. The time taken for the point on the blade to pass between the said planes 2, 3 is measured and parameters associated with the blades rotation are calculated therefrom. In another embodiment, the detector defines at least two divergent detector fields and a reactive radiation source responsive to the passage of the blade through the detector fields is provided on the blade. The reactive radiation source is arranged to radiate a signal such as a light signal which is detected by the detector. <IMAGE>
Patent GB-2216482-A (GB)
Title: Suspension arrangement for the car of a flexible dirigible balloon
Inventor: PERIE GUY
IPC: B64B1/22
Filed: 1989-02-24
Abstract: An improved suspension device is provided for the car of a flexible dirigible balloon. The car (2) is suspended via vertical cables (3) to longitudinal bridge rigging bands (5) fixed to the internal face of the upper part of the inflatable gas-bag (1) at the central part thereof. Car (2) is also suspended by cables (12) from transverse bridge rigging bands (10) secured to the inner face of the gas-bag (1) and oriented in a vertical or inclined plane normal to the longitudinal vertical plane of symmetry of the gas-bag (1). Under horizontal flight conditions, the longitudinal bridge rigging bands (5) take up the essential part of the forces exerted, whereas the transverse rigging bands (10) take up the additional stresses exerted during extreme flight conditions. <IMAGE>
Patent GB-2218399-A (GB)
Title: Manipulator
Inventor: WHITEHEAD WILLIAM CHARLES
IPC: B61D15/02
Filed: 1989-05-09
Abstract: A manipulator 100 for the outer end of a boom comprises a mount 101, secured to the boom, to which housing 109 is pivoted about axis 110 by pistons 104, 105. A further mount 111 is rotatable about axis 112 and carries other structures 130, 131. The boom is part of a crane mounted on a rail chassis, by an arrangement the subject of copending application GB 8910652. <IMAGE>