baber/WOPTO huggingface dataset:
Patent GB-2044531-A (GB)
Title: Non-linear resistance elements and method for manufacturing same
IPC: H01C7/102
Filed: 1980-02-08
Abstract: A non-linear resistance element or varistor is provided by the invention. The body of the element is a ceramic sintered body mainly composed of titanium dioxide admixed with small amounts of oxides of niobium, tantalum and/or antimony. Each electrode is of a metallic material bonded to the sintered body in ohmic contact by flame spraying or electroless plating depending on the metallic material for the electrode, for which silver, aluminium or nickel is preferred. It is further proposed to facilitate the soldering for wires to the electrodes by providing for the electrode at least a partial coat of a material having an affinity for solder. Such a layer also serves for inhibiting the oxidation of the electrode.
Patent GB-2044101-A (GB)
Title: Antihypertensive pharmaceutical compositions
IPC: A61K31/40
Filed: 1980-02-15
Abstract: Pharmaceutical compositions containing   a) 6-benzoyl-3-hydrazino-5,6,7,8-tetrahydropyrido-[4,3-c]pyridazine (endralazine)   b) a salidiuretic and   c) pindolol are useful for the treatment of hypertension. The salidiuretic may be 2-aminomethyl-4-tertbutyl-6-iodophenol, bendroflumethiazide, benzthiazide, bumetanide, chlorothiazide, chlorthalidone, dopamide, cyclothiazide, ethacrynic acid, furosemide, hydrobenzthiazide, hydrochlorothiazide, hydroflumethiazide, methyclothiazide, metolazone, polythiazide, quinethazone, ticrynafen or trichloromethiazide.
Patent GB-2050742-A (GB)
Title: Surface acoustic wave filter
IPC: H03H9/64
Filed: 1980-05-12
Abstract: A surface acoustic wave filter includes a substrate 1 made of piezoelectric material and at least one transducer deposited on the substrate. The transducer has a pair of comb- shaped electrodes with their teeth interdigitated. An absorbent material 5b is deposited on a portion of the transducer where the teeth are interdigitated for changing the frequency characteristic of the surface acoustic wave filter. As described the device has a transmitting transducer 2 and a receiving transducer 3, and the material 5b forms part of a larger epoxy resin absorber 5. A further absorber 6 is provided adjacent the transducer 3. <IMAGE>
Patent GB-2054842-A (GB)
Title: Improved liquid chromatography
IPC: G01N21/41
Filed: 1980-06-20
Abstract: Apparatus is disclosed of the type including light source 101 directing beam B through measurement zone 54 to detector 52. Movement of the beam (from B to B') in a measurement direction with respect to the detector gives an indication of the measurement made in the zone.   The position of the beam with respect to the zone is modulated at 112 through a preselected amplitude which is independent of light beam movements at the light source or between the source and modulating means 112. The measurement is thereby made substantially independently of beam movements in the modulation direction. The disclosed apparatus is a refractometer for use in liquid chromatography. The refractometer utilises measurement cells 54 which include a reflective layer for returning the beam after interaction with the sample(s), an integral curved lens surface, and an opaque mask. In use, two optical measurements are provided which are modified by circuitry which allows for an offset dependent on one of the measurements and zeroes the apparatus by equating the offset with a predetermined value. The circuitry also includes a dischargeable store between an analogue and a digital circuit. <IMAGE>
Patent GB-2059365-A (GB)
Title: Vehicle suspensions
IPC: B60G3/24
Filed: 1980-09-15
Abstract: A vehicle independent road wheel suspension arrangement provides that the major part of spring induced loads are reacted at a final drive unit mount 17, at the forward end of the axle casing to enable a light-duty mount 24 to be employed at the aft end of the casing. <IMAGE>
Patent GB-2085349-A (GB)
Title: Process for the production of ducts in structural members
IPC: B28B7/18
Filed: 1980-10-22
Abstract: A process for producing ducting in structural members such as concrete panels comprises passing flexible rubber tubes (5b) through hollow bodies (4) within formwork members (1), passing a rigid, supporting element (6) e.g. of metal through a part (5k) of the interior of a tube (5b), and then fastening the ends of the elements (6) to the formwork members (1). Then the assembly is concreted and when the concrete has set, the elements (6) and rubber tubes (5b) can be readily removed, to leave ducts in their place. Instead of the elements (6) and rubber tubes (5b) solid rubber rods (not shown) may be used. <IMAGE>
Patent GB-2088587-A (GB)
Title: Electrically powered space heating system
IPC: F24D11/00
Filed: 1980-11-03
Abstract: A pump P circulates heated water through a water circuit containing: an electrically powered heating unit H; a heat store S; zone valves Z2, Z3 feeding space heaters R1, R2; zone valve Z1 feeding a hot water supply tank D; and flow control valves V1, V2. An electrical control unit CU automatically controls the setting of the flow control valves so as to provide different modes of operation and make efficient use of cheap night-rate tariff mains electricity. In a night-rate tariff period when there is no heating demand, V1 and V2 are set so that pump P circulates water through heating unit H to heat store S in a first operational mode. In a daytime tariff period V1 and V2 are set so that pump P circulates water through heat store S to the zone valves in a second operational mode wherein heating unit H is bypassed and inoperative. However, in the event of the heat store being unable to satisfy the heating demand, the system changes automatically to a direct heating third operational mode. In the third mode, V1 and V2 are set so that water is heated by unit H and circulated via the respective zone valves. Manual override and other auxiliary control features are also provided. <IMAGE>
Patent GB-2089496-A (GB)
Title: Optical Spectrum Analyser
IPC: G01R23/17
Filed: 1980-12-04
Abstract: An integrated optic spectrum analyser comprises a waveguide 10 and a light source 12 for supplying a beam of light to it. The beam is divided into two parts, which are superimposed to produce a fringe pattern, the variation of which is detected by an array of photo-electric cells 24, whose output is Fourier transformed in electronic means 26 to obtain the spectrum. The waveguide can include a S.A.W. transducer 16 which deflects the beam by diffraction, the spectrum obtained being indicative of the effect of the transducer. As shown, lens 14 produces a parallel beam of light from laser 12. Part of the diffracted beam is reflected from waveguide side 22 to interfere with the remaining part on the end 20. Fringe pattern detection can be made easier by reducing the number of fringes by having a grating on end 20 to form Moire fringes. <IMAGE>
Patent GB-2067004-A (GB)
Title: Recovery of nuclear fuel material
IPC: G21C19/36
Filed: 1980-12-16
Abstract: In a process for the recovery of nuclear fuel material from an irradiated nuclear fuel element in which the nuclear fuel material is contained within a protective metal sheath of austenitic stainless steel or face-centred cubic nickel alloy, the outer layer of the sheath is embrittled by contact with a nitriding agent (preferably ammonia). Bending stress followed by reverse bending or shearing action is then imparted to the sheath to break it up, using, for example, a roller leveller.
Patent GB-2071425-A (GB)
Title: Print Circuit Board
IPC: H05K3/24
Filed: 1981-02-27
Abstract: A print circuit board characterized in that a print electronic circuit element on a base plate (2) is formed by a material comprising carbon particles dispersed in a solid resin. Said print electronic circuit element includes a conductive pattern (4), a key contact portion (3) which requires no conductive protective film on the surface thereof, and a jumper wire (7). <IMAGE>
Patent GB-2082119-A (GB)
Title: Lottery tickets
IPC: A63F3/06
Filed: 1981-04-02
Abstract: A lottery ticket having images X, Y, Z concealed by tear back tab means 16, 18, 20 has a background pattern which is common to the respective images, thereby to avoid compromising of the ticket over one or more of said images. <IMAGE>
Patent GB-2089023-A (GB)
Title: Solar energy collector
IPC: F24S23/74
Filed: 1981-05-18
Abstract: A solar energy collector comprises a pipe 2 for conveying a thermal transfer medium. The pipe is located within a cylindrical concave mirror 3 equipped with a slit 3a for incident light so that solar rays reflected from a further cylindrically-concave mirror 5 are directed on to the pipe through the slit. The apparatus may be housed in an evacuated box and may be provided with a getter arrangement 11, 12, 13. <IMAGE>
Patent GB-2088549-A (GB)
Title: Heat transfer apparatus
IPC: F24D3/02
Filed: 1981-09-17
Abstract: Heat transfer apparatus with a fluid heat carrier comprises at least one flat heat exchanger 1 for receiving or delivering heat, a conduit system 2 with a circulating pump 4, a heat exchanger and a pressure regulating device 5. The pipes of the conduit system 2 which lead downwards are dimensioned as a function of the volumetric delivery of the circulating pump 4 such that the flow speed of the heat carrier is higher than 0.5 m/s, and the pressure-regulating device 5 regulates the pressure in the conduit system. The heat exchanger 1 consists of two thin foils 19,20, connected together at the edges and separated by a porous layer 21 of open-pored foam or a fleece, and may be a solar collector or a radiator. <IMAGE>
Patent GB-812955-A (GB)
IPC: F16K31/68
Abstract: 812,955. Valves. BRITISH THERMOSTAT CO. Ltd. June 4, 1956 [June 7, 1955], No. 16312/55. Class 135. In a thermally-actuated gas valve, the valve seat is formed at the end of a cylindrical element 3 which is slidably but non-rotatably housed in a passage 5 situated between the inlet and outlet passages of the casing so as to be axially adjustable by means of a screw element 4. Leakage of gas past the element 3 is prevented by a sealing ring 1 housed in a groove around the element 3. The ring 1 may be of rubber of circular or square cross-section, and in the latter, case, it may be housed in a groove formed between a flange on, and a screwed nut carried by the element 3. Alternatively the sealing ring may be accommodated on a separate non- rotatable member. Specification 773,593 is referred to.
Patent GB-2086561-A (GB)
Title: Heat exchanger with tubes and fins and tube plates mechanically assembled
IPC: F28F21/06
Filed: 1981-10-21
Abstract: The heat exchanger comprises a tubular core having tubes engaged into perforations of fins inside which they are inflated. The tubes are designed for being tightly connected to tube-plates by means of deformable gaskets. The tube-plates comprise resilient interlocking elements cooperating with mating portions of the core.
Patent GB-2087589-A (GB)
Title: Optic Fibre Cables Containing a Dessiccant
IPC: G02B6/44
Filed: 1981-10-23
Abstract: A communications cable comprises at least one optical fibre 1 within a casing e.g. a metal water barrier 2. The casing contains a desiccant optionally in a jelly. The cable thus constructed is capable of holding an interior relative humidity ???1% for a period of approximately 20 years. The desiccant is preferably a molecular sieve desiccant e.g. certain alumino silicates. <IMAGE>
Patent GB-2085883-A (GB)
Title: Polyether orthoformates and silicates useful as polymerization catalysts in cyanoacrylate adhesive compositions
IPC: C09J4/00
Filed: 1981-03-04
Abstract: Multiple arm podands of the formula   <IMAGE> wherein B represents a carbon or silicon atom; R<2> each independently represents a lower alkyl group; and n, m, p and q each independently represent an integer of from about 2 to 50, or of the formula:   <IMAGE> wherein B represents a silicon atom, R1 represents a hydrogen atom or a lower alkyl group, R2 each independently represents a lower alkyl group and m, n and p each independently represents an integer of from about 2 to 50 are useful as polymerisation catalysts in cyanoacrylate-based adhesive compositions.
Patent GB-2108424-A (GB)
Title: Portable waste compactor
Inventor: ELLIS KENNETH R
IPC: B65F3/20
Filed: 1981-11-05
Abstract: A portable waste compactor has a generally box-like body (11) fitted at one end with a waste-loading door (14) and at the opposite end with a waste- discharge door (12). A ram-operated compacting mechanism moves a blade (15) so as to sweep the incoming waste towards and eventually against the normally closed waste-discharge door (12). The waste-loading door (14) pivots open about a normally horizontal axis (19) so as to open outwardly away from the compacting mechanism. The door (14) has a step (22) which contacts the outer surface (23) of the compactor loading-end to support the opened loading door in a position in which the inside surface (14a) of the door slopes towards the waste-receiving floor of the compactor to form effectively a waste- loading chute. The door (14) once closed is held shut by a latch (24) which hooks into a slot (26) in the edge of the door and which is not connected to any compacting-mechanism-actuating switch. The leading part of the inside surface (14a) of the loading door is concavely curved and the blade (15) sweeps against it when the door (14) is fully closed. <IMAGE>
Patent GB-2089535-A (GB)
Title: An electronic watch having an analog display and an electro- optical display device
IPC: G04G9/00
Filed: 1981-12-10
Abstract: To simplify the construction of a watch comprising an analog display and an electro-optical display cell 12, the analog display is provided by two transparent discs 8a and 10a carrying minute and hour markers 8 and 10 and located in front of the cell 12. The discs are driven at their peripheries by means of a stepping motor 40. This construction permits the use of a display cell 12 of large size, which does not have hand spindles passing through it. The display cell 12 is visible through apertures in a dial 14. The watch is powered by a cell 64. There may be two separate motors for the minutes and hours discs 8a, 10a. The hand discs may show local time when the electro-optical display shows the time at a different location (Rome in Fig. 1). <IMAGE>
Patent GB-2117616-A (GB)
Title: Display furniture
Inventor: CONSTABLE HAROLD MARK
IPC: A01G9/02
Filed: 1982-01-20
Abstract: The piece of furniture comprises a container (1) formed with a compartment capable of holding water, and an area bordering the compartment in or on which one or more plants may be supported; the container comprising a transparent lateral wall (4 or 5) so that the interior of the compartment may be viewed laterally from the exterior of the container, and the container being open at the top so that the container and the bordering area may be viewed from above. <IMAGE>
Patent GB-2113821-A (GB)
Title: Heat-dissipating device operated by solar energy
Inventor: SHAO CHIA LIN
IPC: F24S90/00
Filed: 1982-01-22
Abstract: A hot air outlet for the roof (11) of a building or of a vehicle comprises an outlet duct supporting a rotatable outlet member (6). Within the duct, there is a heat-dissipating gauze (5) thermally coupled by a metal rod (4) to a metal plate (1) which acts as a solar collector. In operation, the heated gauze causes a chimney effect whereby warm air is extracted and replaced by cooler ambient air. When applied to a vehicle, the metal plate (1) is coupled to the exhaust pipe of the engine by a further metal rod. <IMAGE>
Patent GB-2100390-A (GB)
Title: Roller for use in conveying radiation-sensitive material
IPC: H05F3/02
Filed: 1982-05-18
Abstract: A metallic body 1 having electrically conductive stub axles 3 is covered by a coating 4 of plastics material which defines an outer surface of the roller. In order to reduce the build-up of electrostatic charges caused by friction as the roller conveys the radiation-sensitive material (such as photographic film or X-ray film), the plastics material is chosen so as to be close to the radiation-sensitive material in the triboelectric series, suitable examples being polyurethane, polymethylmetacrylate, polycarbonate, polyamide 6,6 copolymer, polystyrene, polyethylene and polypropylene. In addition, the plastics material has a resistivity of between 10<9> and 10<2> ohm/cm<2> so that any static electrical charges built up may be conveyed to the stub axles 3. <IMAGE>
Patent GB-2105837-A (GB)
Title: Improvements relating to fuel burners
Inventor: JAMES GEORGE
IPC: F23D11/38
Filed: 1982-08-20
Abstract: A pin 23 is provided for clearing a jet nozzle 12 of a fuel burner leading from a chamber 13 into which fuel is introduced through a fuel supply duct 10. When it is desired to clear the nozzle 12, pressure is applied from the pressurised fuel supply via a valve 22 to a piston 18, thus creating a differential pressure on the compound piston 18 and 17 to drive the pin 23 into the nozzle 12. In a modification movement of the pin can be provided by a manually- actuated plunger. Figure 2 (not shown). <IMAGE>
Patent GB-2125786-A (GB)
Title: Esters of indomethacin
Inventor: SATO SUSUMU
IPC: C07D209/28
Filed: 1982-09-20
Abstract: An indoleacetic ester derivative represented by the following formula   <IMAGE> in which R represents a hydrogen atom, -COR1 in which R1 represents an alkyl group, an alkenyl group or a phenyl group unsubstituted or substituted with a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a formyl group, a hydroxy group, an acyloxy group, an alkoxycarbonyl group or an alkylenedioxy group, -COAR2 in which A represents a C1-C4 alkylene group, a C1-C4 alkyleneoxy group or a propenylene group, and R2 represents a phenyl group unsubstituted or substituted with a halogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a formyl group, a hydroxy group, an acyloxy group, an alkoxycarbonyl group, or an alkylenedioxy group,   <IMAGE> in which R3 represents a hydrogen atom, a halogen atom, a cyano group, a lower alkyl group or a phenyl group, R4 represents a hydrogen atom, a lower alkyl group or a phenyl group, and R5 represents a phenyl group unsubstituted or substituted with a lower alkyl group, a lower alkyloxy group, an acyloxy group or a halogen atom, the process for preparing same, and the use of same, in effective amounts, as an antiinflammatory analgesic.
Patent GB-2128771-A (GB)
Title: Fuel control system for a gas turbine engine
Inventor: CANTWELL HUGH FRANCIS
IPC: F02C9/28
Filed: 1982-10-13
Abstract: A fuel control system for a gas turbine engine shows an arrangement for preventing overfuelling when a rapid deceleration is immediately followed by a rapid acceleration. This arrangement depends upon the fact that the relationship between the speeds of the various spools of the engine changes during deceleration. A scheduling device (36) calculates a theoretical steady state value of one rotational speed from the actual value of another rotational speed, and the difference between the theoretical and actual values is used to reset the acceleration control unit (30) to cause it to demand less fuel on re-acceleration than it would from the steady state condition, thus avoiding surging when rapid acceleration follows a rapid deceleration of the engine. <IMAGE>
Patent GB-2110979-A (GB)
Title: Mechanical and fluid actuated ram in a powder compacting press
Inventor: DESANTIS RAYMOND P
IPC: B30B1/10
Filed: 1982-10-21
Abstract: A powder compacting press is provided with a mechanical toggle mechanism 136 for reciprocating a ram 42 disposed above the die supporting table 12 of the press, the pivotable support for the ram toggle upper connecting rod 108 being connected to the movable member 106 of a fluid cylinder 99. The pressure in upper cylinder chamber 154 is sufficient to maintain the ram over the die plate while a lower punch 24 is moving vertically, but is insufficient when the punch 24 reaches its maximum fully operative position, at which time, however, the toggle mechanism 36 reaches full expansion. The full force exerted on the ram 42 by the fully expanded toggle mechanism produces retraction of the movable member 106 such that engagement of a pair of abutment means 178, 180 causes the full force developed by the toggle mechanism to be exerted on the ram. A single cam 200 is used for actuating the ram irrespective of whether the ram is used for clamping an anvil in position over a die cavity when the press is used in an anvil pressing mode Figs. 3, 4 (not shown), or for reciprocating upper punches 37 as shown, when the press is used in an opposed punch operating mode. <IMAGE>
Patent GB-2111997-A (GB)
Title: Composition and method for inhibiting terminal deoxyribonucleotidyl transferase activity
Inventor: MCCAFFREY RONALD
IPC: C07D239/545
Filed: 1981-05-29
Abstract: New uracil compounds having the formula: <IMAGE> wherein X is C1 - C10 alkoxy or amino. These compounds are useful in treating patients having leukemia, the cells of which express terminal deoxynucleotidyl transferase.
Patent GB-2126282-A (GB)
Title: Rotary piston unit
Inventor: GROLL ROBERT CHRISTIAN
IPC: F01C1/352
Filed: 1983-02-10
Abstract: A rotary piston unit comprises a rotary piston (1) which is eccentrically mounted in a housing (4) and carries blades (7) which are distributed around its circumference and co-operate with the inside housing wall (5). Rollers (6), the longitudinal axis of which extend parallel to the axis (Z2 or Z4) of the piston shaft, are rotatably mounted in the piston (1) and receive the blades (7) free of play in slots (14). The rollers (6) hold the blades (7), which at their outside regions are adapted to the radius of curvature of the inside housing wall (5), radially aligned to the axis (Z1) of the housing (4). <IMAGE>
Patent GB-2118006-A (GB)
Title: Transmission systems
Inventor: DORWARD RICHARD MUNRO
IPC: H04L1/24
Filed: 1983-03-21
Abstract: Error monitoring in a transmission system arranged to transmit a digitally encoded data signal is carried out by decoding the signal to provide a digital data stream which is analysed on a segment by segment basis. Each segment comprises an equal plurality of digits of the data stream and a count is updated in dependence upon the value of each segment in turn. If the count exceeds predetermined upper or lower values an error in the transmission of the data is indicated.
Patent GB-2118264-A (GB)
Title: Branch pipe joint
Inventor: PARKER ROBERT WILLIAM
IPC: F16L41/08
Filed: 1983-03-31
Abstract: A pipe joint for fitting into a hole in the wall of a pipe comprises inner (2) and outer (1) tubular telescoping members, one of said members having pins (8) projecting from one end of it for locating in the hole, and the other member having longitudinal slits (16) at the corresponding end for locating the pins and enabling the slitted end to be resiliently stressed and thereby to vary its external dimensions. Interengagement of the members as they are telescoped together causes stressing at or adjacent the slitted end, thereby enabling the slitted end (15) to engage behind the hole, either by expansion caused by release of the stress or by expansion caused by the stressing. <IMAGE>
Patent GB-2119937-A (GB)
Title: A platform scale
Inventor: HANSSEN STAN BENZIES
IPC: G01G21/10
Filed: 1983-04-14
Abstract: A platform scale includes a base 2, a platform 1, for receiving a weight, and weight sensing means including levers 4,5,7,8 and adjacent an end of each lever adjacent a rim 3 of the base 2 a floating support device 12 for providing a knife-edge bearing for lever 4,5,7 or 8. The floating support device is captive on the underside of the platform but free to float to accommodate small inclinations of the platform 1 with respect to the base 2 in use to provide for even pressure on the levers at all times, so providing accuracy of weighing measurement. <IMAGE>