baber/WOPTO huggingface dataset:
Patent GB-2196517-A (GB)
Title: Signal labelling
Inventor: FERGUSON STEPHEN PATRICK
IPC: H04L25/49
Filed: 1987-10-01
Abstract: A digital signal handling device comprises a converter for converting a balanced pseudo ternary digital code (e.g. HDB3) into a two-level binary code at twice the bit rate of the pseudo-ternary code, the converter including means for labelling the input pseudo-ternary code by periodically inverting the bit pair (e.g. 01) of the 2-level binary code which represents logical zero, (e.g. to 10) and, when no zeroes occur, periodically inverting the bit pairs (e.g. 11,00) representing the marks of the pseudo-ternary input signal, (e.g. to 00, 11). The ternary signals are labelled and converted to double rate binary for processing in crosspoint switch 10. The scheme also allows the switch to be transparent to errors on the ternary channels 11, 12. <IMAGE>
Patent GB-2200861-A (GB)
Title: Metallurgical vessels
Inventor: ZYBOK CLEMENS
IPC: B22D41/18
Filed: 1988-01-19
Abstract: A metallurgical vessel (1) has a bottom (2) in which there is a discharge opening (3) and a starter tube (6) which extends around the discharge opening and blocks it. The starter tube (6) has a predetermined breaking point (7), e.g. an area of reduced thickness, and is so constructed that as molten metal rises in the vessel the buoyancy force acting on the portion (6') of the starter tube above the predetermined breaking point (7) causes or assists breakage of the starter tube at the predetermined breaking point thereby permitting the metal to flow through the discharge opening (3). The breakage of the starter tube at the predetermined breaking point (7) may be assisted by the aggressive attack of the melt on the predetermined breaking point. 
<??>Several embodiments are described. In some, the portion above the breaking point is of frusto-conical shape. In others, a shoulder between a wider upper portion and a narrower lower portion may have a saw-tooth form (Fig. 5) so that the rising metal additionally exerts a twisting force to assist separation of the upper portion. 
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Patent GB-2200689-A (GB)
Title: I. C. engine fuel injection nozzle
Inventor: GREEVES GODFREY
IPC: F02M61/16
Filed: 1988-01-25
Abstract: The machined rib 27 formed on a distance piece 26 which is positioned between the nozzle body 10 and a holder 31 in which the spring 25 is located determines the lift of sleeve 14 and subsequently valve member 18. <IMAGE>
Patent GB-2215700-A (GB)
Title: Hydraulic circuits
Inventor: APPLEYARD MICHAEL
IPC: F15B11/17
Filed: 1988-03-16
Abstract: A hydraulic consumer (43) is supplied with pressurised hydraulic fluid from a first fixed displacement pump (31) under the control of a first pressure regulator (41) and from a second fixed displacement pump (32) of lower delivery volume rate than the first pump under the control of a second pressure regulator (52) set to give a higher fluid pressure than the first regulator. A selector valve (60) is provided to enable the first pump (31) to be disconnected from the consumer (43) during certain operating modes of the consumer to provide a lower speed higher force operation of the consumer when supplied by the second pump (32) only. The hydraulic circuit is particularly suitable for the control of a boom cylinder (49), a dipper stick cylinder (44), a bucket cylinder (45) and a boom swing cylinder (48) of a backhoe during craning operations. Thus when the selector valve is operated to disconnect the first pump (31) the backhoe will move more slowly (due to the lower pump delivery volume rate) but will be capable of providing a greater lifting force (due to the higher fluid pressure) for craning. <IMAGE>
Patent GB-2208516-A (GB)
Title: Detergent composition
Inventor: HOLLAND RICHARD JAMES
IPC: C11D3/37
Filed: 1988-08-10
Abstract: A soil release promoting detergent composition of improved soil release promoting properties in cold water washing of polyester-containing fabrics that have been soiled with oily soils, which improved soil release is due to the presence therein of narrow range ethoxylate (NRE) nonionic detergent and soil release promoting polyethylene terephthalate- polyoxyethylene terephthalate (PET-POET) copolymer instead of broad range ethoxylate (BRE) nonionic detergent and PET-POET copolymer, comprises a detersive proportion of such a NRE type of a nonionic detergent, which is a polyethoxylated lipophile, ethoxylated with an average of 5 to 10 ethylene oxide groups per mole, and with at least 70% of the ethylene oxide being in polyethoxy groups of 4 to 12 ethylene oxides, and a soil release promoting proportion of PET- POET copolymer soil release promoting agent.
Patent GB-2506830-A (GB)
Title: High-energy laser with multiple phased outputs
Inventor: WHITE FREDERIC HALL III
IPC: H01S3/23
Filed: 1988-10-10
Abstract: A high-energy laser 10 comprises a ring of lesser-powered laser modules 12,14,16 from each of which an output is taken to be projected so that they all arrive in phase on a distant target. To phase lock the outputs of all the serial laser modules, the path lengths l of the laser modules are made equal, the path length around the large loop which includes all the laser modules is made an integral multiple of the laser-module path length, and at least two different feedback loops are employed.
Patent GB-2225498-A (GB)
Title: Fluorescent lamp ignition circuit
Inventor: KING-CHUEN HECTOR CHU
IPC: H05B41/18
Filed: 1988-11-22
Abstract: The circuit comprises a triac SCR1 connected across the lamp 1 and triggered by a control circuit R2, C2, SCR2 so that the triac SCR1 turns on to pass heating current through the lamp filaments 2, 3, and the triac SCR1 then turns off to generate a lamp ignition pulse with the aid of a ballast inductor L1. A diode D1 and resistor R3 may be provided to limit the ignition pulse amplitude. A capacitor C1 in series with inductor L1 also acts to reduce the ignition pulse amplitude, as well as increasing the power factor and reducing fluctuation in light output due to mains voltage fluctuations. A further inductor L2 suppresser harmonics that might be produced by the lamp 1, capacitor C1 and inductor L1 acting as a resonant circuit. <IMAGE>
Patent GB-2371297-A (GB)
Title: Propellant compositions and propellants produced therefrom
Inventor: HOLT RONALD BENJAMIN
IPC: C06B25/34
Filed: 1989-04-18
Abstract: An energetic composition suitable for use as a propellant comprises the following components in the following relative proportions:<BR> ```Component A: from 5% to 25% by weight of a polymeric binder;<BR> ```Component B: from 65% to 90% by weight of a highly energetic filler comprising at least one nitramine compound such as RDX, HMX or TATND; and<BR> ```Component C: from 1% to 15% by weight of a plasticiser which comprises at least one nitroaromatic compound such as nitrobenzene, nitrotoluene, nitrocresol or nitroxylese;<BR> ```the percentages by weight of Components A, B and C adding to 100%, wherein Component A comprises from 10 to 100 per cent by weight of a poly(ethylene/vinyl acetate), and may include nitrocellulose, cellulose acetate butyrate or other energetic or non-energetic binder materials.
Patent GB-2230972-A (GB)
Title: Sugar cane mill roller and manufacture thereof
Inventor: POLE KISHOR MAHADEO
IPC: B30B9/20
Filed: 1989-04-26
Abstract: The roller comprises a roller body (1), Fig 1 having peripheral V grooves (3) formed circumferentially thereon and an axial bore (4) formed therethrough. The roller body (1) is mounted on a roller shaft (2) through the axial bore (4) thereof, said roller body (1) further having spaced apart straight channels (5) provided through the entire length thereof and circumferentially spaced apart holes (6) at the bottom of each of the V grooves (3). The holes (6) originate from the bottom of the V grooves (3) and terminate in said channels (5), said channels (5) being open at least at one end of said roller body (1). The roller body (1) further has circumferentially spaced apart first ports (7) Fig 6 originating from one flank each of the V grooves (3) and terminating in said channels (5), and circumferentially spaced apart second ports originating from the other flank each of the V grooves (3) and terminating in said channels (5). Each of said holes (6), first ports (7) and second ports are formed with a step (6a, 7a) therein and have an insert (9) located therein against the respective step (6a, 7a), said insert (9) being provided with an axial orifice (10). There is also provided a vacuum system connected to the open ends of said channels (5). …<IMAGE>…
Patent GB-2225422-A (GB)
Title: Optical transducer systems
Inventor: WILLSON JOLYON PETER
IPC: H01L33/00
Filed: 1989-08-02
Abstract: An optical transducer system for use with an optical transducer 16 of the kind which produces a wavelength multiplexed optical output signal comprises a broadband optical source 8, and a tunable filter 50 in the form of a Fabry-Perot interferometer connected to receive a broadband optical signal from the source. The interferometer is repeatedly swept through its pass band by a control signal of triangular or sawtooth waveform, producing a swept wavelength optical output signal 14 for application to the transducer. In one embodiment, the optical output signal 18 from the transducer is compared 58, 62 with the output signal from the interferometer to decode it, while in another embodiment, a control loop maintains the output amplitude (intensity) of the broadband source substantially constant over the range of wavelengths used by the transducer, enabling a reference channel provided in the transducer to be used for decoding purposes. <IMAGE>
Patent GB-2224332-A (GB)
Title: A thermally controlled valve
Inventor: FOELLER WERNER
IPC: F16K31/56
Filed: 1989-09-14
Abstract: A thermally controlled valve particularly for condensate comprises a closure member (10) co-operating with a valve seating (4), an expansion capsule (5) which contains a vaporising medium and actuates the closure member (10) with a reciprocating wall part and a spring acting on the closure member in the opening direction. Pronounced wear due to erosion occurs at the checking point with small and very small flow quantities. The valve according to the invention does not suffer from this wear because the spring is constructed as a snap spring (15) and is arranged such that, in the closed position (d) of the valve, it occupies a travel position located between the extremes (a, c) of its characteristic curve (26). 
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Patent GB-2239133-A (GB)
Title: Wire stripping machines
Inventor: BRAMLEY ALAN GEOFFREY
IPC: H02G1/12
Filed: 1989-12-16
Abstract: The Capstan of a wire stripping machine comprises two convex surfaces 16, 18 which grip the cable to be stripped, the convex surfaces enabling small diameter cable, large diameter cable (Fig 1) and segment cable (Fig 3) to be adequately gripped and stripped by an adjacent knife edge 24. <IMAGE>
Patent GB-2227158-A (GB)
Title: Safety helmet visor/breathing mask
Inventor: SCOTT ADRIAN
IPC: A42B3/22
Filed: 1989-12-19
Abstract: There is disclosed a full face safety helmet, e.g. which comprises a shell formed by a front shell part (11) and a rear shell part (12) connected together by a hinge (13) and capable of being locked together in the closed position by a lock (14), and which defines an open viewing aperture (17) in the front shell part (11). A see-through visor (19) is mounted on the shell for movement between a closed position in which it covers the viewing aperture (18), and an inoperative position in which it uncovers the viewing aperture, and in both of these positions allowing direct air breathing of external air which passes through the viewing aperture. However, to enable the safety helmet to be operated in hazardous areas, a detachable breathing apparatus is provided which can be coupled with the helmet, the apparatus having a see-through visor (31) which is capable of sealing the viewing aperture (18) when the apparatus is assembled with the helmet. <IMAGE>
Patent GB-2240778-A (GB)
Title: Fluorinated terphenyls
Inventor: COATES DAVID
IPC: C07C25/18
Filed: 1990-02-07
Abstract: Fluorinated terphenyls of the formula I   <IMAGE> wherein R<1> and R<2> independently from each other are alkyl groups with up to 9 carbon atoms or such residues wherein one CH2 group is replaced by oxygen, Q is either trans-1,4-cyclohexylene, 1,4-phenylene or   <IMAGE> and one or two of L<1> to L<5> represents fluorine and other substituents L are hydrogen, are suitable as components of liquid crystal media.
Patent GB-2231376-A (GB)
Title: Two piece brake disc
Inventor: FLOTOW RICHARD A
IPC: F16D65/12
Filed: 1990-03-05
Abstract: A brake disc is formed from a pair of identically shaped semi-annular halves (21, 22) Fig. 2. One end of each of the halves is formed with a first circumferentially extending protrusion (21a, 22a) located near the outer circumferential edge thereof. Each of the opposite ends of the halves is formed with a second circumferentially extending protrusion (21b, 22b) located near the inner circumferential edge thereof. The outer protrusions (21a, 22a) are disposed adjacent to the inner protrusions (21b, 22b) in circumferentially overlapping fashion. A pair of radially extending threaded fasteners (25, 26) is used to secure the two halves (21, 22) together. The threaded fasteners (25, 26), Fig. 3, extend radially through aligned apertures formed in the overlapping protrusions and their innermost ends engage splines (12a) formed on a transmission input shaft (12) upon which the disc is mounted. Notches (27) are formed on the outer surfaces of each of the halves to fracture them when it is desired to remove the disc from the shaft. A plurality of apertures (Fig. 4) may be formed through and a plurality of recessed areas of reduced thickness may be formed in each of the halves to reduce weight, the apertures also providing increased air cooling. …<IMAGE>…
Patent GB-2231733-A (GB)
Title: Coaxial cable stripper
Inventor: BIEGANSKI ZDZISLAW
IPC: H02G1/12
Filed: 1990-04-03
Abstract: A coaxial cable stripper (Fig.1) has a tubular body 10 locating a cable guide 40. One part of the body 26 is hinged at 24 and carries cutters 34 36 38 which project through a window in the body so that as the part 26 is moved angularly the cutters can bite into the cable supported at 48 on the cable guide and to different depths according to the relative projection of the blades. The axial spacing of the cutters is dictated by packing pieces between the blades. The angular position is controlled by a ratchet 20. The tool is turned about the cable to make encircling cuts and then pulled axially of the cable to strip off the sheathing.
Patent GB-2238652-A (GB)
Title: Cathode ray tube
Inventor: ROLL ADRIAN
IPC: H04N9/24
Filed: 1990-06-04
Abstract: A colour cathode ray tube in which the electron gun generates a single beam that is scanned across successive groups of red, green and blue phosphor strips, has a beam indexing arrangement in which a glass fibre 22 or 23 is located between each phosphor strip, the light collected by the fibres from the adjacent phosphors being detected and converted into an electrical switching signal to enable modulation of the electron beam from the single gun to correspond with the phosphor being scanned. A lenticular lens (40), Fig. 3 (not shown), whose elements are parallel to the phosphor strips with each element covering two adjacent phosphor groups, may be associated with the screen, which may for example be provided on a flat surface inside the CRT envelope, whereby a 3-D image may be generated by forming respective left and right images using respective left and right groups associated with each element of the lens. <IMAGE>
Patent GB-2233766-A (GB)
Title: Flow monitor
Inventor: FRISCH HERBERT
IPC: G01P13/00
Filed: 1990-06-12
Abstract: A flow monitor, in particular for monitoring small quantities of fluids flowing momentarily, comprises a casing (1) with an inlet connexion (2) and an outlet connexion (3) and a casing cavity (6) in which is arranged a piezoelectric bending transducer (10). The latter is clamped at one end in a holding area (12) of the casing cavity (6) situated at a distance from the opening (11) of the inlet (2) and is subjected at its free end to the flow of the quantity of fluid. The bending transducer (10) preferably covers the opening (11) at least in part. Below a defined flow of the quantity of fluid per unit of time the bending transducer (10) is fixed with respect to the opening (11), whereas when this value is exceeded the bending transducer (10) is deflected by the flow and thus delivers a measurable charge displacement as a signal. <IMAGE>
Patent GB-2235135-A (GB)
Title: Improved protective sheath for a cannula
Inventor: OGLE II GEORGE BRADDOCK
IPC: A61J1/00
Filed: 1990-08-07
Abstract: A protective device for enclosing the scarf (86) of a cannula (70) includes an elongated sheath (82) having a bore (71) extending through it. The cannula (70) is sealed in the bore (71) of the sheath (82) with the scarf end of the cannula (70) located within and adjacent one end of the sheath (82), which is spaced from the scarf (56). The end of the sheath adjacent the scarf end of the cannula has at least one cutout (84) portion which can receive the edge of a flexible bag or a flexible tubing connected to a Y-site for intravenous injection. A socket (92) carried by the sheath (82) at the other end of the cannula (70) has an opening through it in communication with the bore (71) through the cannula (70). The socket opening (92) tapers outwardly away from the cannula (70) for receiving a tapered nozzle on a syringe. Preferably, the sheath (52) surrounds the socket (92) and carries inwardly extending ears (96) which act as male threads for engaging internal threads in a skirt around the discharge nozzle of a syringe. The skirt makes a slip fit against the inside of the sheath surrounding the socket and inwardly extending ears. Preferably the outside surface of the syringe skirt is irregular to provide an increased coefficient of friction against the interior surface of the sheath. <IMAGE>
Patent GB-2248437-A (GB)
Title: Food package
Inventor: NICHOLAS GARY
IPC: B65D1/36
Filed: 1990-08-14
Abstract: A food package is in the form of a tray 6 having a base 8 providing a shallow recess or cavity 15 in which a first food product A1 is located. Similar second food products B1, B2 are placed so as to overlie the first food product A1, resting on flat shelf surfaces 18, so that they overlie without totally obscuring the first food product. In a further embodiment a central wall (10, Fig 1) is provided which has curved vertical surfaces (12, Fig 1) defining two cavities for first products (A1, A2, Fig 1), the central wall further having a flat surface (20, Fig 1) for location of the second food products (B1, B2, B3 and B4, Fig 1). The package is also provided with a transparent wrapper and the food product located in the package may be circular, e.g. burgers. <IMAGE>
Patent GB-2236891-A (GB)
Title: Video magnetic recording and playback device
Inventor: NAKAJIMA KATSUMI
IPC: G11B15/02
Filed: 1990-09-05
Abstract: A video magnetic recording and playback device has a manual input means (16, 17) for manually inputting data, a memory timer means (13) storing the manually input data as preset data, and an operation control means (10) responsive to the manually input data for controlling a video signal recording and playback means (9) and a tape travel control means (813). The preset data controls the operation of the video signal recording and playback means and the tape travel control means for preset recording. A state detecting means (10a) detects whether the device is in a playback state or in a stop state. By the action of a switch means (20) which detects when the device is in the playback state, the manually input data is directed to the operation control means and is used for the control of the video signal recording and playback means and the travel speed control means. When the device is in the stop state, the manually input data is directed to the memory timer means and stored in the memory timer means as the preset data. <IMAGE>
Patent GB-2237807-A (GB)
Title: Methods for producing polyolefin foam
Inventor: ISHII SEIJI
IPC: C08L23/02
Filed: 1990-10-29
Abstract: A polyolefin foam sheet is made using additionally a resin varnish (e.g. rosin, shellac, alkyd, phenolic or coumarone-indene resins) which can be coated onto the foamable base sheet before heating to foam it, and/or incorporated into the polyolefin resin composition of the base sheet, and/or coated onto the sheet after foaming. The use of such varnish may confer good thermal resistance and surface wettability of the resulting foamed sheet.
Patent GB-2249683-A (GB)
Title: Optical system for the remote determination of position and orientation
Inventor: MORRISON JOHN MALCOLM
IPC: G01S5/16
Filed: 1990-10-31
Abstract: To determine the position of a helmet in a cockpit to enable weapon's aiming to be determined from the position of the pilot's head, a pair of fan shaped beams (scan 1, scan 2) alternately intercept all four photo-sensitive strips A-D arranged in an upright fashion and equally angularly spaced apart on the rear of the pilot's helmet (Fig. 1), (as seen in the straight ahead looking position). The outputs (Fig. 3) of the photo-sensors depend upon the position at which it is illuminated by the light beam, and sufficient information is provided by the outputs of the four photo-sensors for both fan beams in order to enable the position of the helmet in the cockpit to be determined.   <IMAGE>
Patent GB-2239317-A (GB)
Title: Dipstick
Inventor: THIER KARL
IPC: G01F23/04
Filed: 1990-12-14
Abstract: Liquid storage means comprises a liquid container of high slim mode of construction with an opening (7) arranged in a ceiling region thereof and a liquid level measuring rod (4) of a hard-resilient material introducible into the opening. The cross-sections of the opening (7) and of the rod (4) over the largest part of its length are dimensioned relative to each other for guidance of the rod almost free of play, but so differ from each other in shape that at least one side (42) of the rod, which is provided with a measuring scale, can have no contact with a side of the opening and no contact with any interior wall of the container. Contact is prevented by concave surfaces (42) in a rod (4) whose apexes may define a rectangle, square or triangle. <IMAGE>
Patent GB-2244476-A (GB)
Title: Mechanism for lipstick-holder case or the like
Inventor: FAVERIO LUCIANO
IPC: A45D40/06
Filed: 1991-04-24
Abstract: A mechanism (10) for a lipstick-holder case or the like, so as to be able to have the sleeve element (12) made of plastics and having a rounded outer edge (20), has a rib and groove engagement (shown circled) between the inner part (14) and the sleeve element (12), such engagement being positioned near the end of the sleeve opposite to the said rounded outer edge. <IMAGE>
Patent GB-2259287-A (GB)
Title: Apparatus for and method of de-icing a surface
Inventor: ROBERTS NORMAN
IPC: B64D15/12
Filed: 1991-09-04
Abstract: In order to facilitate de-icing of a leading edge (23) of an air intake duct (24) electrical heating apparatus is disposed immediately adjacent to the leading edge (23). The electrical heating apparatus comprises a number of wires (26) embedded in the leading edge (23). The wires (26) are heated intensely for a short period of time. The intense heating of the wires (26) results in a phase change at the interface between the leading edge (23) and the ice adhered thereto. The ice at the interface changes rapidly from a solid to produce a liquid and a gas. The adhesion of the ice is broken and the gas produced at the interface produces a force which is sufficient to detach the remaining ice from the leading edge (23). instead of wires 26, stripes of electrically conductive paint or a conductive ceramic may be used, or a non-electric heat source may be used. A microwave detector or temperature detector sensing phase change or temperature at the interface may control the power supply. <IMAGE>