baber/WOPTO huggingface dataset:
Patent GB-2022848-A (GB)
Title: Location of Contact Faults on Electrically Conductive Cables
IPC: G01R31/08
Filed: 1979-01-26
Abstract: The invention relates to the location of contact faults on electrically conductive cables such as telephone pairs. Contact fault location apparatus has a pair of resistors 24, 25, a constant current source 22, and means such as a differential amplifier 30 and meter 35 for sensing the curring flowing in the resistors 24, 25. A pair of lines to be tested is looped at one end 15, the apparatus is connected across the other end and the current flowing in the resistors 24, 25 is measured. The ratio of the currents is indicative of the distance to the fault. <IMAGE>
Patent GB-2015799-A (GB)
Title: Indicator and display devices
IPC: G09F9/37
Filed: 1979-01-30
Abstract: A display device comprising a background having a first appearance, with seven longitudinal elements a-g of a second appearance, the elements being arranged to display a numeral 8, and includes means, e.g. manual, to mechanically obscure any selected one or more of the elements to represent instead of 8 any one of the numerals 1-7 and 9 and 0. <IMAGE>
Patent GB-2043971-A (GB)
Title: Voltage regulators
IPC: G05F1/26
Filed: 1979-03-13
Abstract: A mains voltage regulator comprises a transformer having a primary winding (6) for energisation from the mains supply, and a secondary winding (7) for permanent connection in series with the load (1) supplied from the mains. When a requirement for regulation of the supply voltage is detected by supply voltage sensor (2), a switch (8) connected across the primary winding is opened. The effect of the transformer on the voltage supplied is neutralised by closing the switch to short out the primary when no requirement for regulation is indicated. <IMAGE>
Patent GB-2026535-A (GB)
Title: Twister ring lubricant compositions
IPC: C10M169/00
Filed: 1979-05-16
Abstract: A twister ring lubricant is formulated using a major portion of paraffin wax and a minor portion of conventional oil or grease. In the manufacture of ply which is used in making cord, the individual filaments are fed through the eye of a nylon traveller (5) which spins around a steel twister ring (6). Two or more plies are cabled to form a cord also using a traveller which spins around a twister ring. The twister ring lubricant reduces the sliding friction between the nylon traveller and the steel twister ring. The conventional ingredient is characterized by having an SUS viscosity at 20 DEG C of 30-600 and is selected from (a) hydrorefined naphthenic petroleum oil, (b) hydrorefined paraffinic petroleum oil, (c) solvent refined paraffinic oil and (d) hydrogenated polyolefin oil. Mixtures of these may also be used.
Patent GB-2022644-A (GB)
Title: Improvements in optical cable manufacture
IPC: G02B6/44
Filed: 1979-06-05
Abstract: An optical cable is assembled by inserting dielectric optical waveguides 11 into a filament 2 having periodically reversing helical grooves 3. Dielectric optical waveguide is unwound from fixed reels 12 by movement of the filament past the reels. A rotatable guide unit 23 has flexible tubes 26 through which dielectric optical waveguide is guided, the tube ends 27 being disposed within the grooves so that respective dielectric optical waveguides and grooves are maintained circumferentially coincident. A number of devices are described for reducing longitudinal tension in dielectric optical waveguides disposed within the grooves. <IMAGE>
Patent GB-2027872-A (GB)
Title: Cooling devices for internal combustion engines
IPC: F01P3/22
Filed: 1979-07-31
Abstract: A cooling device for internal combustion engines, comprises a radiator 4 which is connected respectively to the cooling chamber of the engine and to a circulation pump 6 itself connected to a cooling liquid expansion chamber 8, in which is maintained an air pressure greater than atmospheric pressure, wherein the expansion chamber 8 is connected to an air pump 10 generating a pulsated air pressure, said pump 10 being driven by means of an auxiliary member of the internal combustion engine. <IMAGE>
Patent GB-2030704-A (GB)
Title: Processing of photographic paper and film
IPC: G03D3/06
Filed: 1979-08-24
Abstract: Regeneration of treatment liquid during the processing of photographic paper or film is controlled by measuring the ohmic resistance of the paper or film 3 as it passes between electrically conductive rollers 1, 2, thereby obtaining the width of the paper or film. The supply is governed as a function of the width, roller rotation rate and paper or film density. One of the rollers may be flexible so that the electrical connection between the rollers breaks only over the paper or film width. <IMAGE>
Patent GB-2058296-A (GB)
Title: Automatic shut-off device for controlling gas flow
IPC: F23N5/22
Filed: 1979-09-14
Abstract: The device has a gas flow part A including a gas flow passage 1 having an inlet 2 connectible to a source of gas under pressure and an outlet 5 connectible to apparatus (domestic cooker) for receiving gas from the source. The device includes a gas flow control part B having a plunger 6 which is axially movable in response to a timer part C between a valve closure position corresponding to a zero time position for a pointer 7 of the timer part C and a valve opening position corresponding to a desired time position of the pointer selected on the timer part C. Audible alarm means 32 and 33 optionally are provided in the timer part C. The plunger 6 may either be shaped to displace a valve head provided on a source of gas under pressure connected to the device or the plunger may be shaped to provide a valve head 6c cooperating with a correspondingly shaped valve seat. <IMAGE>
Patent GB-2031424-A (GB)
Title: 1-Aryl-3-methyl-4-ethyl-6H-2- benzopyran-6-ones
IPC: C07D311/76
Filed: 1979-09-19
Abstract: The invention relates to novel 1- aryl-3-methyl-4-ethyl-6H-2- benzopyran-6-one derivatives having the general formula (I),   <IMAGE> wherein R, R<1> and R<2> each stand for hydrogen atom or methyl group, with the proviso that if R and R<2> stand for hydrogen atom then R<1> may not stand for methyl group, and condensation adducts thereof formed with acids. These compounds can be applied as intermediates in the synthesis of pharmaceutically active substances. Furthermore the invention relates to a process for preparing these compounds. The compounds of the general formula (I) may also exist in the tautomeric 2-benzopyrilium-6-oxido form corresponding to the general formula (Ia), wherein R, R<1> and R<2> are as defined above. The term "a compound of the general formula (I)" embraces each of these tautomers and any mixture thereof.
Patent GB-2032451-A (GB)
Title: Process for Preparing a Pigment-carrying Red-luminescent Phosphor
IPC: H01J29/20
Filed: 1979-09-19
Abstract: A red-luminescent phosphor is dispersed in an aqueous solution of a divalent or trivalent iron salt or iron compound and said iron salt or compound is converted to a water- insoluble iron compound by changing the pH of the aqueous solution or by other processes, thereby to incorporate the water-insoluble iron compound in the phosphor. The phosphor is then calcined to convert this water-insoluble iron compound to a red pigment, and form a pigment- carrying red-luminescent phosphor. In this way, a pigment can be bonded to a phosphor without using a water- soluble polymeric compound or other binder. The phosphor is preferably a europium-activated yttrium oxide, oxysulphide or vanadate for use in a colour CRT.
Patent GB-2059252-A (GB)
Title: Adjustable inclination shelf brackets
IPC: A47B57/04
Filed: 1979-09-20
Abstract: A bracket for use with a slotted upright support and serving for carriage of a shelf has three lugs A, B and C which engage respective slots in the upright. The configuration of the cut-away parts of the lugs which form hook-like members is such that the bracket may be engaged in a number of different angular positions with the upright as shown by chain dot lines 1, 2, 3, 4 and 5, with at least two lugs extending through the upright in each position. The arrangement provides for minimal projection of the lugs through the upright. <IMAGE>
Patent GB-2042507-A (GB)
Title: Preparation of fluoronitrobenzenes
IPC: C07C205/12
Filed: 1979-10-03
Abstract: Fluoronitrobenzenes are prepared by heating chloronitrobenzenes with an alkali metal fluoride and a phase transfer catalyst at a temperature of no more than 200 DEG C.
Patent GB-2059759-A (GB)
Title: Clothes drier
IPC: D06F57/12
Filed: 1979-10-05
Abstract: A clothes drier for attachment to an external wall of a highrise apartment building or blocks of flats adjacent a window of the apartment or flat. The drier has at least two spaced apart support members 1 and 2 mounted on a support surface to project therefrom and extending between the two support members 1 and 2 at least one endless ring 4 of flexible wire or cord, such as nylon (Trade Mark) having two side by side runs 4a, 4b to which clothes to be dried may be removably attached. The wire or cord is movably attached to the support members 1 and 2 to permit axial displacement of one run 4a relative to the other run 4b and relative to the support members 1 and 2 so that in operation of the drier a selected point on a run may be displaced into or out of reach of a user of the drier. <IMAGE>
Patent GB-2061161-A (GB)
Title: Improvements in or relating to machine tool electrodes
IPC: B23H1/04
Filed: 1979-10-20
Abstract: An E.D.M. electrode has a rigid body 18, not necessarily electrically conductive, with its working end face shaped to correspond to the shape to be formed in a workpiece, and an electrically conductive skin 26, of e.g. copper, which in use is sucked against the shaped end face by the action of a pump 24 connected to passages 20 and is thus readily replaceable when worn. <IMAGE>
Patent GB-2035424-A (GB)
Title: Machine for milling or peeling road surfaces
IPC: E01C23/088
Filed: 1979-11-23
Abstract: In a machine for milling or peeling road surfaces comprising a motor driven chassis moving on wheels 2, 3 and/or tracks 4 and having a rotary milling or a fixed peeling cutter, such as drum 14, the road surface alongside the cutter is engaged by a pressure device, such as a spring-loaded skid 20 optionally associated with a vertical edging blade 28, to prevent damage to the road surface adjacent the surface being worked. The skid 20 may be replaced by a roller, a series of small rollers, an endless track or a rotary spider of spring-loaded pressure plates. The may also include a heating system and a conveyer system for the milled off or peeled off material. <IMAGE>
Patent GB-2036780-A (GB)
Title: Disazo dyestuffs
IPC: C09B62/09
Filed: 1979-11-26
Abstract: Dyestuffs of the formula   <IMAGE>  in which      R1 is H, halogen, alkoxy or acylamino, R2 and R3 are independently H, halogen, alkyl, alkoxy, or acylamino,      R4 is halogen, OR5, SR5 or NR6R7 wherein R5 is H, C1-C6-alkyl, aryl, heteroaryl, aralkyl, or cycloalkyl, and  R6 and R7 are independently H, amino, optionally substituted C1-C6 alkyl, aryl, heteroaryl, aralkyl or cycloalkyl, or together may complete a 5-or 6- membered hetero ring optionally containing further hetero atoms, and wherein rings A and B may be optionally substituted and their use for the dyeing of cellulose containing materials in bright yellow shades.
Patent GB-2043850-A (GB)
Title: Boilers for Central Heating Systems
IPC: F24H1/22
Filed: 1979-12-21
Abstract: In heating apparatus for central heating systems which includes a boiler with a discontinuously operating burner, wherein the combustion gases first flow upwardly past a first heat exchanger and then downwardly past a second heat exchanger, the heat exchangers heating up a medium which flows cyclically through an external circuit, the efficiency of the second heat exchanger is enhanced by use of a condenser made of smooth-walled tubing i.e. without fins or ribs, and which is made larger than the first heat exchanger. <IMAGE>
Patent GB-2044987-A (GB)
Title: Ion detector
IPC: G08B17/113
Filed: 1980-02-06
Abstract: An ion detector has a reference chamber 2 and a measuring chamber 1 the latter comprising a first zone 13 wherein is generated ionization by an ???-radioactive source 9, and a second zone 14 wherein are arranged electrodes 5,8 to generate an electric field stronger than the field in said first zone, openings 6,7 being so provided and distributed in the measuring chamber that an air draft reaching the detector will move the ions formed in the first zone towards the second zone, whatever the draft direction. Dimensions are detailed. Plate 4 carries a printed circuit. Electrode 5 may be of stainless steel netting and casing 16 of plastics material. <IMAGE>
Patent GB-2065446-A (GB)
Title: Storing blood in an antihemolytic environment
IPC: A61K35/14
Filed: 1980-02-29
Abstract: A blood container, such as a blood bag made of blood-compatible flexible plastics material, is provided with an antihemolytic agent, which is contained in the container, e.g. as an emulsion, or is incorporated in the plastics material of the container, the antihemolytic agent being an ester having at least two ester linkages comprising hydrocarbon groups of 4 to 12 carbon atoms each.
Patent GB-2057141-A (GB)
Title: Method and apparatus for sensing fluid flow
IPC: G01F1/64
Filed: 1980-07-29
Abstract: When a fluid consists of discrete particles of a first phase dispersed in a second phase, flow can be sensed or measured by sensing in a constant volume much larger than the particles and through which the fluid flows a property which differs substantially in value in the two phases, so that passage of each particle into and out of the volume causes a substantial change in the value of the property, and determining an autocorrelation function. The property may be the electrical conductivity or the ability to scatter laser light. In the illustrated embodiment, cylindrical electrodes 12, 14, mounted in a length of pipe 10 of insulating material, sense fluctuations in electrical conductivity which are differentiated with respect to time at 20 and autocorrelated at 22. <IMAGE>
Patent GB-2083744-A (GB)
Title: Hospital beds
IPC: A47C19/02
Filed: 1980-08-14
Abstract: A hospital bed has an adjustable backrest whose upper part 18, 20, 24 is slidable on vertical members 14, 16 of the head frame of the bed. The part 18, 20, 24 is locked in position by a spring urged canting plate releasable by a knob 40, and a handle 32 is provided for moving the backrest, the handle being located near to the knob 40, so that the handle and the knob can be encompassed by a single hand, thus leaving the nurse one hand free to support the patient. The backrest includes a frame 26 hinged to part 24. <IMAGE>
Patent GB-2082108-A (GB)
Title: Process for rotational moulding utilizing EVA and products produced therefrom
IPC: B29C41/22
Filed: 1980-08-15
Abstract: A rotationally moulded hollow article e.g. a playball is formed of a mixture of plastics pellets and powder both of which are copolymers of ethylene and vinyl acetate, having a predetermined range of pellet to powder mixture ratio of 50 to 80% by weight of pellets to 50 to 20% by weight of powder, and with such mixture having a predetermined melt index range of 10 to 50. The article is characterized by having substantial "bounce" characteristics generally equivalent to those possessed by hollow, non-cellular articles made of known thermoplastics compositions or known rubber-like compositions of natural and/or synthetic polymers, as well as those possessed by solid cellular articles made from other known thermoplastics or from known rubber-like compositions of natural or synthetic polymers.
Patent GB-2064724-A (GB)
Title: Valve
IPC: F16K37/00
Filed: 1980-11-17
Abstract: A leakproof valve has a valve housing (1) which consists of an upper portion (6) and a lower portion (7) each connectable to a conduit. Between these portions (6, 7) there is a communication (8) which has a conical valve seat (13) with two sealing rings (14, 15) of different diameters. Two outer cone parts (9, 11) in a three-way divided valve cone cooperate with the sealing rings of the valve seat forming double seals between the upper and lower portions of the valve housing. The third cone part (10) is located between and movable with respect to the two outer cone parts (9, 11). On closure of the communication (8), the third cone part (10) will substantially abut against the seat (13) between the sealing rings (14, 15) such that no cavity is formed here. A subsequent shifting of the third cone part (10) with respect to the two outer cone parts (9, 11) opens a communication (17) from the region between the seals to a bleeder outlet (18). <IMAGE>
Patent GB-2071643-A (GB)
Title: Fluoride Free Crown Glass
IPC: C03C3/17
Filed: 1980-12-08
Abstract: The present invention provides optical, fluoride-free crown glass having the following composition:   (a) 30-54% barium metaphosphate which can be partly replaced by metaphosphates of Bi (0-20%), Sr (0-12%), Ca (0- 18%), Zn (0-13%), Pb (13-13.5%). (b) 15-30% potassium metaphosphate which can be partly or completely replaced by rubidium metaphosphate. (c) 23-26% aluminium metaphosphate which can be partly or completely replaced by metaphosphates of yttrium (0-50%), scandium (0-13%), gadolinium (0- 11%), indium (0-13%), gallium (0- 15%), thorium (0-10%), and hafnium (0-10%), together with 0-10% tellurium dioxide, 0-10% germanium dioxide, 0-10% arsenic trioxide, 0- 5% barium nitrate and 0-5% potassium nitrate. i
Patent GB-2091154-A (GB)
Title: Safety razor system
IPC: B26B21/22
Filed: 1981-01-15
Abstract: A safety razor system comprises a handle 19 and an exchangeable blade unit 11 which can be releasably coupled together by interengagement of interlocking portions 13,22 of the two components, followed by rotation of the handle in its own plane, about a fulcrum axis, extending longitudinally of the blade unit, to bring respective surfaces of the components into frictional, wedging engagement. The system also includes a container 32 for the blade unit, which is held in the container so that its interlocking portion is accessible to the handle. The components can be securely coupled in the manner described above, and continued rotation of the handle will twist the blade unit clear of the container.
Patent GB-2069369-A (GB)
Title: Method and apparatus for removal of heat from an olefin polymerization reactor
IPC: B01J19/00
Filed: 1981-02-06
Abstract: In polymerizing a C2 to C8 olefin, in a polymerization reactor with a reflux condenser (3), a gas mixture (4) withdrawn from the polymerization reactor is first washed (2) before it in reaches the heat transfer surface of the reflux condenser (3) to remove active catalyst particles and polymer particles entrained therein. It is then partially condensed in the reflux condenser (3) to obtain a condensed liquid (7) for return to the polymerization reactor whereby the heat generated in the polymerization reactor is efficiently removed without causing any clogging of pipes. The uncondensed gas is returned to the reactor via a compressor. The washing means is a gas-liquid contactor such as a tray, disc scrubber or cyclone scrubber, or spray tower and can be in the lower portion of the condenser. The washing is preferably by countercurrent contact of the gas mixture with condensed liquid obtained in the condenser and/or solvent. <IMAGE>
Patent GB-2093847-A (GB)
Title: Epoxy imide compositions
IPC: H05K1/03
Filed: 1981-03-04
Abstract: A composition useful for making circuit boards which is the reaction product of   (a) an epoxy resin or an epoxy novalac resin and optionally, a brominated epoxy resin and   (b) a bismaleimide; wherein the product of (a) and (b) is subsequently reacted with a curing agent such as a diamine of the formula H2N-R<1>-NH2 wherein R<1> is an aromatic, aliphatic or cycloaliphatic group. The composition is used to impregnate a fibrous substrate of fiberglass, high temperature polyamides or graphite fibers which is laminated to a copper sheet; the resulting laminate is used for form a circuit boards that have good electrical and physical properties.
Patent GB-2073389-A (GB)
Title: Tumbler dryer
IPC: D06F58/08
Filed: 1981-03-27
Abstract: A tumbler dryer for clothes has a drying drum (11) driven by an electric motor (10) through the intermediary of a belt (20) passing around a first pulley wheel (19) mounted on the motor (10) and a second pulley wheel (21) on the drum (11). The pulley wheel (19) has a coaxial integral friction wheel (17) and the pulley wheel (19) and its associated friction wheel (17) are mounted in bearing means carried by the housing of the electric motor (10) such that the friction wheel (17) is constantly urged into driving engagement with a motor shaft (16) of the electric motor. <IMAGE>
Patent GB-2099319-A (GB)
Title: Liquid metering and dispensing apparatus
IPC: C02F1/68
Filed: 1981-05-21
Abstract: A liquid metering and dispensing apparatus comprises an automatically filling and discharging supply tank (1) for a liquid to be treated with a liquid reagent, a reservoir (5) for the reagent mounted above the supply tank, a cup (6) mounted in the reservoir responsive to movement of a float 9 in the supply tank for vertical reciprocal movement relative to the reservoir between a filling position below the level of liquid reagent contained therein and a discharge position above the level, and a solid plunger (7) mounted above said cup in a position to engage the cup in its discharge position thereby displacing a given quantity of reagent from the cup onto the supply tank. <IMAGE>
Patent GB-2080554-A (GB)
Title: Conveyor weighing assembly
IPC: G01G19/00
Filed: 1981-07-17
Abstract: Individual articles (9 and 9') being transported by a conveyor are weighed by a method wherein the article to be weighed is moved from an upstream portion (7) of the conveyor on to a weigh head (1) by the action of the conveyor portion (7), the article is weighed whilst it is stationary on the weigh head (1), and is then moved on to a downstream portion (8) of the conveyor, as a consequence of the action on the weighed article (9) of the following article (9'). The weigh head preferably is provided with a weigh cell (6) and associated microprocessor means for providing a signal representative of the weight of the stationary article upon the weigh head. The microprocessor means can be programmed to scan the signal and to determine its minimum gradient with respect to time, thereby providing the most accurate weight reading, to predict by extrapolation the minimum gradient of the signal and to sense the presence of an article to be weighed upon the weigh head. In a preferred embodiment of the assembly, the downstream conveyor portion (8) is located at a lower level than that of the upstream portion (7), with the weigh head (1) located at an intermediate level between the two conveyor portions (7, 8). <IMAGE>
Patent GB-2091059-A (GB)
Title: Surface acoustic waveguide
IPC: G10K11/36
Filed: 1981-10-07
Abstract: A surface acoustic wave device in which two metallised areas 4, 6 are provided on a substrate 1 so as to form two waveguides for propagating surface acoustic waves the waveguides being separated and having different widths so that acoustic energy travelling in a particular mode 3 inone of the guides is transferred into a predetermined mode 8 in the other guide. <IMAGE>
Patent GB-2125740-A (GB)
Title: A collapsible wheelchair
Inventor: BEARDSHAW WILLIAM GEORGE ALFRE
IPC: A61G5/08
Filed: 1982-08-25
Abstract: Side frames (10) are interconnected by front and rear linkages comprising arms (34) which fold about generally vertical axes (36, 40) so that the side frames (10) can be moved towards and away from one another to collapse or erect the chair. The arms (34) are connected to centrally located brackets (38) which are connected together by a rod (42) for coordinated movement. A holding device is provided which has an over centre action in order to releasably hold the arms (34) in the straight line position and thereby securely maintain the chair erected until it is to be collapsed. <IMAGE>