baber/WOPTO huggingface dataset:
Patent GB-2016487-A (GB)
Title: Articles for electrical use and compositions useful therefor
IPC: C08K5/54
Filed: 1979-02-09
Abstract: An article for electrical use such as insulative substrates electrical circuit boards and electrical elements, wholly or partly consisting of an aromatic polyamide-imide having a reduced viscosity of from about 0.3 to 1.5, which polyamide-imide may contain a granular material dispersed therein, and a composition comprising 100 parts by weight of said polyamide-imide and additionally about 100 to 4,000 parts by weight of a granular material and optionally about 10 to 10,000 parts by weight of a polar organic solvent. The polyamide-imides are defined by a number of alternative general formulae the common features of which are that the only carboxylic acid residues are those of trimoellitic acid and that these are linked by one or two aromatic amines at least one of which has its linkages at the meta or 3,3' positions. The resulting articles have reliable and accurate electrical characteristics.
Patent GB-2018023-A (GB)
Title: A control input switching arrangement
IPC: D06F34/32
Filed: 1979-02-13
Abstract: A control input switching mechanism for domestic appliances, comprising a bank or array (3) of sensor buttons (3') provided on a panel (2) of the appliance. A plate (4) is mounted spaced behind the panel (2) and carries electrodes (5, 5') forming capacitors, one plate (5) of each of which is electrically connected by a contact spring (6) to a respective sensor button (3'). Upon finger contact of a sensor button (3') the capacitance of its respective capacitor (5, 5') varies so as to provide an output to switching electronics of the appliance. <IMAGE>
Patent GB-2015504-A (GB)
Title: Cyclopropane Aldehydes
IPC: C07C45/40
Filed: 1979-02-28
Abstract: A process for the preparation of a cyclopropane-carbaldehyde of the general formula:-   <IMAGE> wherein R represents an alkyl, alkanoyl, hydroxy, acetoxymethyl, hydroxymethyl or carboxyl group, or a halogen atom which comprises reacting a 4-substituted-2-carene of the general formula:-   <IMAGE> wherein R has the meaning given above, with a mixture of ozone and oxygen in the presence of an anti- oxidant and subject the resulting ozonide to reductive clearage by the action of a reducing agent to yield the cyclopropane aldehyde. The latter compound is useful as an intermediate in the manufacture of pyrethroid insecticides.
Patent GB-2049145-A (GB)
Title: A gas heater
IPC: F28F9/22
Filed: 1979-05-16
Abstract: A gas heater has a number of groups 1, 2 of heat exchange tubes arranged in series. A hot gas passes through the tubes, and the gas to be heated passes around the outsides of the tubes. The gas to be heated passes from one side 6 of the tube group to the other 4, and then through a conduit 8 to the next, series-arranged tube group where it again passes from one side 7 of the group to the other 5. The direction of flow of the gases around the tubes is the same in each group. The gas therefore flows along a Z-shaped path through the heater. <IMAGE>
Patent GB-2025857-A (GB)
Title: Aqueous Ink Writing Tip
IPC: B43K1/08
Filed: 1979-06-29
Abstract: A writing tip 1 for use with aqueous ink comprises an elongate housing 2. A writing ball 3 is retained in a socket 4 at one end 5 of the housing and a fibrous feed core 6 having aqueous ink feeding capillaries extends into a bore 7 in the housing from the other end 8. The core 6 acts to transfer aqueous ink from a source to the ball via a grooved feed passage 9 between the bore 7 and socket 4 and in order to provide releasable transfer of ink between the core 6 and the passage 9, the core is inserted into the end 13 of the passage, the material of the core being substantially uncompressed within the grooves 12 of the passage 9 and assuming substantially the cross- section of the passage at least at the end 13. <IMAGE>
Patent GB-2064979-A (GB)
Title: Extraction systems for particulate waste materials
IPC: B65G53/60
Filed: 1979-12-14
Abstract: In a dust extraction system for woodworking machinery, the dust is collected by hoods (2) over each of a plurality of machines and is carried by an air flow produced by a blower (7) through respective branch conduits (3) to a common manifold (4). The manifold (4) is made sufficiently large that the air flow velocity in the manifold is too low to carry the dust along the manifold, and therefore the dust collects at the bottom of the manifold, from which it is removed at intervals by a conveyor (12), which carries the dust to a central hopper (8). A control system (9, 10, 11) keeps the subatmospheric pressure in the manifold (4) substantially constant, so that the number of machines served by the system can be changed without affecting the system performance. Filter 14 removes fine dust from the air flow. The conveyor may be replaced by a blower which periodically blows the dust from the manifold into a cyclone (Figure 3 not shown). <IMAGE>
Patent GB-2043752-A (GB)
Title: Improvements relating to paving machines
IPC: E01C19/48
Filed: 1979-12-14
Abstract: A modification for a paving machine when used to pave a narrow trench with a bituminous material comprises a material distribution device including a laterally restricted discharge opening (20) disposed forwardly of a screed (14), and conveying means in the form of augers rotated so as to converge the material into the discharge opening. The augers act against arcuate surfaces (27) on width control boxes (21) which are used to restrict the width of the discharge opening (20). The width control boxes (21) may be adjusted by hydraulic or worm driven means. Hydraulic or gear drive may be used to reverse the rotation of conventional augers. <IMAGE>
Patent GB-2068834-A (GB)
Title: Coating vitreous or ceramic supports
IPC: B41M1/34
Filed: 1980-01-25
Abstract: A method of providing a vitreous or ceramic support (3) with a metal or metal compound (e.g. metal oxide) coating (6) in a pattern comprises the following steps: applying a masking material to the substrate in a negative pattern through a stencil, the applied masking material being such that when baked it leaves a dry masking deposit (5) which adheres to the substrate and is mechanically removable, baking the substrate (3) and applied masking material and applying an overall coating (6) of said metal or metal compound, and then mechanically removing the masking deposit (5) and overlying metal or metal compound (6) to leave a positive patterned coating of said metal or metal compound on the substrate (3). <IMAGE>
Patent GB-2048661-A (GB)
Title: A system for adjustment of the slope of the backrest of an invalid chair or the like
IPC: A47C1/027
Filed: 1980-04-03
Abstract: An invalid chair with a push grip lion the rear of the backrest 1, has the backrest 1 hinged (28) to the frame 10 and a support 2 hinged (27) to backrest 1 and frictionally locked by a brake 14, the brake being freed by a hand lever 17 on the grip 11 for stepless adjustment of the backrest slope. <IMAGE>
Patent GB-2046767-A (GB)
Title: Aqueous dispersion polymerization process and product
IPC: C08F283/10
Filed: 1980-04-08
Abstract: Increasing the solids content of an aqueous dispersoid of: (a) a resin having aliphatic backbone carbons; (b) addition polymer, and (c) graft polymer consisting of addition polymer grafted to the aliphatic carbon atoms of said resin; which comprises bringing together ethylenically unsaturated monomer, initiator, and such dispersoid, and polymerizing the such monomer in situ. Preferred products produced are water-reducible epoxy resin-based. These are produced by a process which comprises initiating addition polymerization of ethylenically unsaturated monomer in the presence of such dispersoid.
Patent GB-2052048-A (GB)
Title: Optical Sensing of Surface Deformation Caused by Ultrasonic Energy
IPC: G01H9/00
Filed: 1980-04-25
Abstract: The acoustic energy responsive deformation of a workpiece surface is sensed in a contact-free manner by optical means using a laser 1 which illuminates the surface 3 at which deformation is expected with multi- wavelength laser beam length. The reflected light energy is transmitted to an optical interferometer 4. A prism 5 separates the light leaving the interferometer into the distinct wavelengths. Each light signal corresponding to a specific wavelength is converted individually to an electrical signal by photoelectric means 6a to 6f, each signal is rectified by rectifiers 7a to 7f, and the rectified signals are then averaged in an electrical summing means 8. Averaging the measurements at several wavelengths reduces the effect of degradation of the signals at particular wavelengths by drift due to dimensional changes in the apparatus and by noise due to surface roughness. <IMAGE>
Patent GB-2058834-A (GB)
Title: Method for heat treating iron- nickel-chromium alloys
IPC: C22C38/50
Filed: 1980-04-28
Abstract: Method for heat treating age- hardenable iron-nickel-chromium alloys to obtain a morphology of the gamma-double prime phase enveloping the gamma-prime, the alloy consisting essentially of from 25% to 45% nickel, 10% to 16% chromium, 1.5% to 3% of molybdenum or niobium, about 2% titanium, about 3% aluminum, and the remainder substantially all iron. To obtain optimum results, the alloy was heated to a temperature of 1000 DEG C-1100 DEG C for 30 sec-1h., preferably 1025 DEG C to 1075 DEG C for 2-5 minutes, furnace cooled cold- worked 10-80%, preferably 20% to 60%, aged at a temperature of 750-825 DEG C for 4-15 hours, preferably about 775 DEG C for 8 hours followed by an air-cool, and then heated to a temperature in the range of 650 DEG C to 700 DEG C for 2-20 hours followed by an air-cool.
Patent GB-2049646-A (GB)
Title: Separation process
IPC: B03D1/02
Filed: 1980-05-02
Abstract: A slurry of iron oxide solids containing dissolved nickel and/or cobalt is treated to separate those metal(s) from the slurry. The treatment includes controlled precipitation of the sulphides of the metal(s) which is effected by contacting the slurry with calcium or barium sulphide or both to precipitate nickel and/or cobalt sulphides. The precipitated sulphides are separated from the treated slurry by flotation for which suitable collecting agents include sulphyaryls, dithiophosphates, thionocarbamates, and dithiocarbamates and suitable frothing agents include methyl isobutyl carbinol and polypropylene glycol methyl ether.
Patent GB-2056516-A (GB)
Title: Filament packaging
IPC: B65H54/80
Filed: 1980-08-15
Abstract: A length of filamentary material, such as wire or optical fibre, is packaged in the form of a loose coil wound free from tension in an annular channel defined by the perimeter wall of a circular pan and an inner wall formed by a projection from the bottom of the pan, the pan having a tightly fitting lid. For forming the package, the pan is disposed horizontally and the filament is fed continuously downwardly into the annular channel, either the pan or the feed means being rotated, and the linear speed of travel of the filament into the pan being maintained equal to the mean peripheral speed of the filament coil formed. If the pan is rotated while the feed means is maintained stationary, the filament deposited in the pan is free from twist. Two forms of apparatus for forming the package are described. <IMAGE>
Patent GB-2059888-A (GB)
Title: Cycle steering
IPC: B62K5/08
Filed: 1980-09-05
Abstract: A cycle for two riders formed from two bicycles coupled in side- by-side disposition is steered from one bicycle the handlebars of the other bicycle being inoperative, the front forks of the bicycles being interconnected to steer in unison by a track rod pivoted to track arms 1 each of which comprises a body portion 2 having a spigot 3, which fits into a socket 6 in a part 8 of the respective fork at the junction between the stem and legs of the fork, and an abutment 4 spaced from the spigot to abut the part 8. The spigot 3, abutment 4 and part 8 have aligned passages receiving an elongate connection member 13 to secure the track arm 1 to said part 8. The body portion 2 of the track arm also has an aperture 5 providing for pivotal connection of the track rod to the track arm 1 and defining a pivotal axis positioned in a plane 17a through the longitudinal axis of the spigot 3, which plane 17a extends at an acute angle e.g. 25 DEG -35 DEG , to the plane 18 of a wheel mounted in the front fork. <IMAGE>
Patent GB-2084111-A (GB)
Title: Chase handling apparatus
IPC: B26D7/26
Filed: 1980-09-26
Abstract: Chase handling apparatus (1) to facilitate the loading and unloading of chases from a carton cutting and creasing machine comprises a frame (2) upon which a carriage (6) is vertically movable. The carriage (6) has a plurality of vertically spaced supports (7) so that it can hold a plurality of chases. In use the height of the carriage is adjusted so that one support (7) is level with the chase outlet of the machine and the chase is pulled from the machine onto the support through the open front end (8) of the carriage. Chases can be removed from the carriage (6) by securing a trolley (10) to the rear of the frame (2) and adjusting the height of the carriage so that the chase to be removed is level with the trolley. The chase is then pulled onto the trolley through the open rear end (14) of the carriage. <IMAGE>
Patent GB-2091037-A (GB)
Title: Metallized film capacitor
IPC: H01G4/20
Filed: 1981-01-09
Abstract: A metallised film capacitor consists of a film winding which is enclosed within a sealed container. The container is filled with a mixture of gases which suppress electrical discharges in the winding so as to reduce capacitance loss, a suitable mixture being nitrogen and Sulphur Hexafluoride.
Patent GB-2069240-A (GB)
Title: An electrical capacitor
IPC: H01G4/12
Filed: 1981-02-04
Abstract: An electrical capacitor comprises a ceramic disc shaped dielectric body (1) having a corrugated centre region (2) on which two metal coating layers (4,5) are formed, one on each side of the dielectric body (1), the coating layers being separated from each other by a metal-free bead-like edge (3) of the dielectric body (1). <IMAGE>
Patent GB-2074142-A (GB)
Title: Vacuum-indicating closures
IPC: B65D51/16
Filed: 1981-03-10
Abstract: A roll-on type bottle closure of sheet metal includes a top (7), a peripheral skirt (6) depending from the top which is adapted to engage external threading on the neck or finish of a bottle, a gasket (8) located in a cavity defined by the skirt and the top and which is nipped between top (7) and the top face of the bottle neck, and at least one area of convexity (9) which is off-set from the centre of the closure top and which, in use of the closure, indicates the presence or otherwise of a vacuum in the associated bottle, compare Figs. 1 and 2 (not shown). <IMAGE>
Patent GB-2073765-A (GB)
Title: Coating Composition for Use in a Transfer Adhesive System
IPC: C09J7/02
Filed: 1981-03-18
Abstract: A coating composition for rendering a material non-adherent to normally adherent high-phenyl content pressure sensitive adhesives comprising (i) 100 parts by weight of a silicon composition comprising (a) 100 parts by weight of a vinyl chain- stopped diorganopolysiloxane base from 50 to 100,000 centipose at 25 DEG C; (b) 0.1 to 10 parts by weight of a trimethyl chain-stopped polymethylhydrogen siloxane fluid cross-linking agent having from 10% to 100% by weight SiH groups and having a viscosity in the range of 25 to 1000 centipose at 25 DEG C; (c) an effective amount of platinum catalyst for facilitating a heat cure hydrolisation reaction, and (ii) 2.0 to 10 parts by weight of silicone resin. The composition can be applied to a base element of metal, foil, glass, plastic paper or fibrous materials.
Patent GB-2077304-A (GB)
Title: Production of fully fashioned terry towelling type fabrics
IPC: D04B11/08
Filed: 1981-05-29
Abstract: A straight bar knitting machine which includes a yarn feeder including at least two yarn carriers 29, 30 for simultaneously feeding at least two separate yarns to the sinkers, the sinkers being adapted, e.g. having throats of two different depths, so as to draw said yarns by different amounts to produce, during knitting different sized loops. The yarns may be chosen so that the ground yarn shrinks more on heat treatment or the ground yarn may be elastic and knitted under tension so as to contract after knitting. <IMAGE>
Patent GB-2103859-A (GB)
Title: A drum
Inventor: BAILEY VICTOR LEONARD
IPC: G10D13/02
Filed: 1981-08-12
Abstract: A musical drum has a peripheral support 1 bounding an opening, a hollow resonator body 5 preferably of truncated conical or pyramidal shape carried by the support and disposed within the opening and having a first open end of greater cross-sectional area than a second end, and a taut drum skin 10 positioned at or adjacent to the first end of the resonator body. In a preferred construction, the drum skin is disposed across and against the first end of the resonator body and has a rim 11 attached to it, a clamp flange element 12 being seated against the rim, and adjustable tensioners 13 being arranged to act between the support and the clamp flange element to draw the drum skin taut against the resonator body. Padding may be positioned between the support and the resonator body. <IMAGE>
Patent GB-2085515-A (GB)
Title: Building aid
IPC: E04G21/18
Filed: 1981-09-30
Abstract: A building aid in the form of a corner guide for use in the building of corners with bricks or blocks, the guide comprising an upright member 2 and a brick or block engaging member 18, the corner guide including means 12 to indicate the accuracy of the vertical disposition of said upright member. The upright member will be mounted about a fulcrum point and will be movable relative to the brick or block engaging member so as to enable the upright member to be located vertically. The brick or block engaging member consists of two arms 14, 16 which may be formed integrally or as separate arms, and the means to indicate the accuracy of the vertical disposition of the upright member comprises a plumb bob or one or more spirit levels. <IMAGE>
Patent GB-2088303-A (GB)
Title: Vehicle current collector for overhead lines
IPC: B60L5/12
Filed: 1981-10-01
Abstract: The current collecting member 4 is pivotally carried by a carrier 1 which resiliently urged upward in a bore 6 in a current-collector tube 2 which is telescopically received in an extension tube 3 to an extent which is adjustable by a rack and pinion arrangement 10, 11, 12, 13. The extension tube 3 itself may be extended and retracted by a rack and pinion drive 23-26 to enable the current collector assembly to be withdrawn beneath a sliding roof 18. The construction is suitable for high travelling speeds, high contact- wire levels and considerable contact- wire level differences. <IMAGE>
Patent GB-2087086-A (GB)
Title: Apparatus for navigating by micromaps
IPC: G01C21/22
Filed: 1981-03-23
Abstract: Apparatus for navigating by micromaps, where the micromap is received in a holder (39) which is movable relative to a stationary main projector (15) with associated lens (27), minors (44, 45) and focusing screen (12). The map holder can be moved separately in the X and Y direction by means of two co-operating, transparent carriage plates (31, 35). A marking projector can be adjusted in a particular position in order to indicate on the instruction screen (12) the position and course of the ship, while the map holder (39) and thereby a section of micromap which is to be directed on the focusing screen can be moved on the focusing screen in order to simulate relative movement between sea and ship. In a first embodiment (Figure 1, 2) the adjustment of the marking projector (17, 19) and the displacement of the map holder (39) can occur by manual operation, while in a second embodiment (Figure 3, 4) the adjustment of the marking projector (50) can occur by means of control pulses from the ship's compass, while the movement of the map holder can occur by means of control pulses from the ship's log and compass via a computer machine.
Patent GB-2114508-A (GB)
Title: Liquid-absorbent material
Inventor: WEATHERILL LOUIS
IPC: E01H1/00
Filed: 1982-02-03
Abstract: A machine for absorbing liquid from a surface such as a playing field comprises a driven roller (4) provided with a liquid-absorbent element (12). The element (12) is made from a foamed plastics or rubber backing (15) provided on its outer periphery with a reinforcing layer (16) comprising an open weave filamentary material or ribs disposed in the form of netting. The reinforcing layer (16) resists wear and scuffing of the foam material and provides improved pick-up of water from the surface being cleared.
Patent GB-2092914-A (GB)
Title: Membrane pack
IPC: B29C63/00
Filed: 1982-02-12
Abstract: A membrane pack is constructed, which includes a highly porous carrier sandwiched between a pair of membrane structures that must be kept continuously wet, the pack having a hole and being sealed around the hole to prevent the passage of polluting liquid lying in the hole, into the porous carrier of the pack. The membrane pack is constructed by impregnating the carrier with a flowable polymer which can solidify, to leave a thin layer of the polymer on either surface of the carrier, and by then welding the polymer layers to membranes at either face of the carrier. Ultrasonic welding of the membrane structures to the carrier is performed while the membrane structures are wet, the ultrasonic welding dissipating moisture lying at the interface between the carrier and membrane structures to permit even hydrophilic polymers to be utilized.
Patent GB-2118726-A (GB)
Title: Mains power measurement
Inventor: SAUL PETER HENRY
IPC: G01R21/00
Filed: 1982-04-13
Abstract: A sigma-delta modulator is used to measure mains power by controlling the control counter of the sigma-delta modulator in accordance with the voltage of the supply and using a signal proportional to line current as input to the modulator.
Patent GB-2099588-A (GB)
Title: Fluid component measuring and alarm device
IPC: G01N33/00
Filed: 1982-05-13
Abstract: A device for sensing the presence of, or determining the concentration of, at least one component in a fluid comprises first and second matched measuring devices A, B each responsive to the same component, first and second matched modifying devices 12, 16, each for modifying a fluid sample so as to modify the concentration of the component to which the devices A, B are responsive by an amount dependent on the concentration of the component to be detected, a pump means 14 operable in two opposite directions to alternately draw unmodified fluid through one measuring device A and then its associated modifying device 12 and at the same time expel modified fluid from the other modifying device 16 to the other measuring device B and vice versa, the pump means 14 operating in each direction for equal periods of time and means 24 to continuously sum the outputs from each of the measuring devices A, B. <IMAGE>
Patent GB-2110012-A (GB)
Title: A three-phase current converter
Inventor: SCHWARZ ALBRECHT
IPC: H02M7/515
Filed: 1982-09-28
Abstract: The three-phase converter comprises a bridge of thyristors (5-7, 11-13) and quenching bridges (2 and 3). The quenching bridges each comprise thyristors and a capacitor and are connected through a thyristor control unit (4) to the thyristors to be quenched. By these measures, only a small number of quenching bridges are need for a polyphase thyristor inverter. The converter is advantageously used with electric vehicles provided with a three-phase motor and which is driven by a traction battery. <IMAGE>