baber/WOPTO huggingface dataset:
Patent GB-2006442-A (GB)
Title: Improvements in or Relating to Measuring Low Capacitances
IPC: G01D5/24
Filed: 1978-10-16
Abstract: A low capacitance CM to be measured is connected between a low impedance generator, such as the output B of an inverting amplifier 1 of low output impedance, and a fixed potential point such as the input A of the amplifier 1. The amplifier 1 is connected so as to form an RC oscillator whose frequency of oscillation provides a measure of the low capacitance the above connection of CM ensuring that stray capacitance in the connecting leads has no effect on the oscillator frequency. The output B of the amplifier is connected via a circuit (R1, R3, 2, 3) forming a Schmitt trigger 4 whose output D is connected via a resistor R to the input of the amplifier 1. <IMAGE>
Patent GB-2042615-A (GB)
Title: Floating Roof for Storage Tanks
IPC: B65D88/36
Filed: 1979-01-08
Abstract: The disclosure herein describes a modular unit for use in the construction of floating decks used in horizontal or vertical liquid storage tanks; the unit consists of a core 30 of cellular foam plastics and of an envelope sealingly encasing the core, the envelope consisting of a layer of electrically conductive flexible metal and of at least one layer of plastics. The foam core may be reinforced with a metal mesh 82 and the unit be provided with rebates and flaps 76, 77 to enhance sealing. The units may be fastened together with screws 81. <IMAGE>
Patent GB-2017184-A (GB)
Title: Paper for Battery Separator
IPC: H01M50/489
Filed: 1979-05-08
Abstract: A paper web for use in making a battery separator is formed from a furnish containing a synthetic pulp the fibrils of which are filled with an inorganic filler, the web incorporating a wetting agent. The synthetic pulp may comprise polyethylene or polypropylene fibrils. The furnish may include polyester fibres. The wetting agent may be an anionic, cationic, or non-ionic surfactant. It may be incorporated in the synthetic pulp or added to the furnish or sprayed on the wet web during manufacture. When added to the furnish, it may be impregnated in a porous silicate carrier. The battery separator may be formed from sections of the paper web and provided with ribs, dimples, or other projections. The separator may be impregnated with a melamine-formaldehyde resin to improve its resistance to wear.
Patent GB-2024015-A (GB)
Title: 1,2,4,-Triazolidin-3-ones and 1,2,4-triazolidin-3-thiones fungicides
IPC: A01N43/653
Filed: 1979-05-24
Abstract: Compositions for, and a method of treating plants to prevent or combat fungal infections in which the plants are treated with a compound which is a 1,2,4-triazolidin- 3-one or thione of the general formula:   <IMAGE>  in which: R<2> represents a linear or branched C1 to 6 alkyl group having an optionally substituted phenyl group or a benzyl group, R<2> represents a linear or branched C1 to 6 alkyl group, a benzyl group, an optionally substituted phenyl group or R<1> and R<2> together form a spiranic ring optionally containing a heteroatom as part of the ring, R<3> represents an alkyl group, a phenyl group which is optionally substituted with one or more substituents which are alkyl or alkoxyl groups, halogen atoms or NO2 groups; R<4> represents a hydrogen atom or a phenyl group optionally substituted with one or more halogen atoms, and X represents an oxygen or sulphur atom.
Patent GB-2025622-A (GB)
Title: A humidity sensor and a humidity detection circuit
IPC: G01N27/12
Filed: 1979-05-25
Abstract: A humidity sensor (1) comprises at least one comb-shaped electrode (2,3) and a base plate (7) on the surfaces of which is formed a film of a high molecular weight polymer which contains reactive cationic monomer. Humidity is determined by measurement of the sensor resistance using A.C. The sensor may be incorporated in a bridge circuit and the amplitude  phi  significant output signal may be rectified and used to control air conditioning equipment. <IMAGE>
Patent GB-2019319-A (GB)
Title: >Screen printing apparatus
IPC: B41F15/08
Filed: 1979-05-30
Abstract: A screen printing device on which deep objects can be printed comprises a holder 22,24,26 for a silk screen frame 34, which is hinged at 28 at the rear so it can be in a horizontal condition (as shown) or a raised condition. A work table 46 is supported on a sub-frame 48 which is slidable vertically on rear posts 16, driven by a screw 58 passing through a nut member 56 at the rear of the table. The sub-frame 48 is supported in cantilever fashion on the posts 16 by vertically spaced pairs of opposed roller bearings 50,52. Rods 20 pass slidably through the front of the sub-frame 48, and the sub-frame has clamping screws 54 to clamp against the rods 20 to hold the front of the table firmly at the desired height. <IMAGE>
Patent GB-2023269-A (GB)
Title: Refractory insulation
IPC: F16L59/12
Filed: 1979-07-17
Abstract: Insulation for high temperature apparatus comprises panels of modular sizes in which strips 10 of ceramic fibre blanket are held in a stack by rods or pins 14 passing through the strips 10 so that the main faces of the panels are formed predominantly by the fibre ends, there being carried by pins 14 extending into the stack offset brackets 12 so that adjacent panels A, B can abut. The panels may overlie normal blanket type insulation 17. <IMAGE>
Patent GB-2032083-A (GB)
Title: Sliding gate valves
IPC: C04B35/00
Filed: 1979-09-14
Abstract: A sliding gate valve 1 for metallurgical vessels, such as Siemens-Martin ovens, having a substantially horizontal outlet passage 2 includes an inlet sleeve 4, a base plate 5, a sliding plate 6 and an outlet sleeve 7 which together define a passage extending through the valve. The passage 9 within the inlet sleeve is lined with a pipe 11 of ceramic oxide material having a slot 10 extending along its length. <IMAGE>
Patent GB-2036601-A (GB)
Title: A portable apparatus for atomised spraying of liquid
IPC: B05B7/26
Filed: 1979-10-19
Abstract: An apparatus, portable on the back of an operator, for atomised spraying of liquids, e.g. insecticides, comprises a motor and pump, mounted on a carrying frame, by which spray liquid and cold or heated compressed air are fed to an atomiser nozzle (20) along coaxial liquid supply and mixing tubes (25, 22), to mix in the small peripheral gap (42) between a flange (38) of a sleeve (39) and the inner wall of a tube (29) which is fitted in the end of the mixing tube (22). The air is given a vortical motion by curved vanes (32) prior to the mixing and the mixed air and liquid are emitted from a funnel (30) attached to the tube (29). A cup (50) coaxially disposed within the funnel (30) provides a small adjustable annular space (55) between its base (52) and the flange (38) through which the liquid flows radially to the mixing region (42). The flange (38) and the cup (50) have sharp edges (44, 59, 61) from which the whirling air draws off the liquid in droplets having a diameter of about 0.02 mm. <IMAGE>
Patent GB-2065500-A (GB)
Title: Heat extractor
IPC: F28C3/06
Filed: 1979-12-19
Abstract: A hot gas stream (22), such as flue gas, is contacted with a liquid medium to remove heat, particulates and noxious gases, suitably in two stages comprising a first contact stage (80) between a partially cooled gas stream and cold liquid medium, suitably in a bed (74) of packing through which the liquid medium flows downwards and the gas stream flows upwards, so that a warmed liquid medium (90) and fully cooled gas stream (84) are produced, and a second contact stage between the warmed liquid medium and the hot initial gas stream, suitably in a plurality of parallel vertically oriented passages (30) wherein a film of warmed liquid medium flows downward and the gas stream flows upwards, so that a fully heated liquid medium (40) and the partially cooled gas stream are produced. The fully heated liquid medium is then passed in indirect heat-exchange (44) with a fluid, to cool the liquid medium and heat the fluid (108). <IMAGE>
Patent GB-2070103-A (GB)
Title: Surfactant flooding oil recovery process
IPC: C09K8/584
Filed: 1980-02-21
Abstract: A fluid for recovering petroleum from a substerranean formation comprises an aqueous, saline fluid having a salinity of greater than 20,000 parts per million total dissolved solids which contains a surfactant comprising (a) a mixture of petroleum sulfonates having a plurality of molecular species of different equivalent weights, the average equivalent weight being from 325 to 425, from 40 to 70% by weight of the petroleum sulfonates having equivalent weight less than 400, and from 60 to 30% by weight having equivalent weights of 400 or more; and (b) a solubilizing co- surfactant selected from alkoxylated alkyl or alkylaryl compounds, alkyl or alkylaryl polyalkoxy sulfates, alkyl or akylarylpolyalkoxyalkyl sulfonates, and mixtures thereof.
Patent GB-2048225-A (GB)
Title: Lockable Closure Cap
IPC: B60K15/04
Filed: 1980-03-03
Abstract: A lockable closure cap which is intended for use with a liquid container such as for example a fuel tank, has an axially-projecting bayonet fastening boss (18) in which is mounted a slidable bolt (17) extending in a direction transverse to the axis of the boss and movable by key-operable means in the form of a rotatable barrel (13) forming part of a lock, one end of said bolt projecting in its operative, locking, position through an aperture formed in the side wall of said boss so as to be then engageable in use in a recess formed in a filler opening of the associated container to prevent rotation of the cap. Conveniently there is a spring (21) which urges the bolt into its operative position from an inoperative position when the rotatable barrel is turned in the appropriate angular direction. <IMAGE>
Patent GB-2050164-A (GB)
Title: Ionising radiation protective compositions
IPC: A61K31/22
Filed: 1980-04-01
Abstract: The compositions comprise at least one amino-alkyl-thiol-derivative of formula:   <IMAGE>  where  R<3> = hydrogen or carboxamidino.  R<4> = hydrogen or carboxy.  B = hydrogen or carboxamidion, or   <IMAGE> where at least two of R<3>, R<4> and B are hydrogen- or a salt thereof, and a synergistically effective amount of at least one ???-acylamino-alkane-derivative of formula:   <IMAGE> where R<1> = hydrogen, C1-4 alkanoyl, aroyl or aryl-(C1-4) alkoxy-carbonyl, R<2> = hydrogen, or carboxy optionally esterified by C1-4 alkyl or aryl- (C1-4) alkyl,  A = -SO2OH or -O-PO-(OH)2,  n = 1, 2 or 3 and m = 2, 3 or 4-or a salt thereof.h
Patent GB-2046709-A (GB)
Title: Apparatus for dispensing a carbonated beverage
IPC: B67D1/04
Filed: 1980-04-02
Abstract: Apparatus for use in dispensing a carbonated beverage such as a Lager type beer whereby the beverage can be dispensed at a relatively low pressure but stored at a relatively high pressure, the apparatus including a pressure responsive switch (24) communicating with a pipe line (20) and a flow switch (26) in association with reed switches (28 and 30), the arrangement being such that the pump (16) is driven at high power when there is no flow and the pressure switch (24) contacts are closed as a result of the opening of a tap (22), and such that the pump (16) is driven at reduced power when a flow of beverage actuates the flow switch, the closure of the reed switch (30) when the tap (22) is subsequently closed causing the pump (16) to be driven at full power until the pressure switch (24) detects the required storage pressure in the pipe line (20). <IMAGE>
Patent GB-2075416-A (GB)
Title: Reverse osmosis composite hollow fiber membrane
Filed: 1980-05-02
Abstract: A reverse osmosis composite membrane in the form of a spun hollow fiber has a salt-rejecting membrane prepared by interfacial polymerization coating the inner lumen-defining surface of the fiber, the lumen having a diameter of 125 to 1250 microns. The fibre may be prepared by wet-spinning a solution of a polysulphone.
Patent GB-2075950-A (GB)
Title: Tube squeezers
IPC: B65D35/28
Filed: 1980-05-13
Abstract: A tube squeezer comprises a base member (1) and a pair of rollers. One roller (2) being rotatably mounted on the member (1) and the other roller (7) being rotatably mounted in a framework (6) which is pivotably mounted on the member (1) about a pivot (5). The other roller (7) is carried by a shaft (7a) which carries a ratchet wheel (9) at one end. A second framework (8) is pivotally mounted on the framework (6) and a pawl (10) is slidably mounted on the second framework (8) and is urged into engagement with the ratchet wheel (9) by a spring (12). In use, a tube (11) is gripped between the rollers (2, 7) and movement of the framework (8) towards the base member (1) causes the pawl (10) to engage and rotate the ratchet wheel (9) which in turn rotates the roller (7) to advance the tube (11) between the nip of the rollers. On the return stroke, the pawl (10) is free to run over the teeth of the ratchet wheel (9) so that the roller (7) is not rotated. In another embodiment, the slidable pawl (10) is replaced by a pivotal pawl which acts as a stop to limit movement of the framework (8). <IMAGE>
Patent GB-2078510-A (GB)
Title: Warm-air drying apparatus
IPC: A47K10/48
Filed: 1980-06-12
Abstract: Warm-air drying apparatus, suitable for drying parts of the body, for example, the hands, wrists and face, includes a blower and heater contained in a housing (10) and elongate outlet nozzles, for example (25) and (26), through which first and second laminar flows of heated air are discharged and directed toward one another such that they converge to define an elongate drying zone 32. The nozzles (25 and 26) are spaced apart across a rearwardly sloping front face of the housing, which may be dished inwardly, and arranged to direct their respective laminat flows generally transversely thereof. A third outlet nozzle extending transversely of the face (16) may be provided. <IMAGE>
Patent GB-2078713-A (GB)
Title: Process for Preparing Ortho Amino Sulphur-containing Heterocycles
IPC: C07D333/42
Filed: 1980-06-24
Abstract: In the preparation of ortho amino sulphur-containing heterocycles, such as ortho aminothiophenes, thiazoles, and similar compounds, which may be substituted with electron withdrawing groups such as -NO2 and -COOC2H5, the ortho-halo precursors of the amino heterocycles are reacted with hexamethylenetetramine in the presence of a solvent.
Patent GB-2053183-A (GB)
Title: Process and device for processing waste waters
IPC: C02F3/10
Filed: 1980-01-16
Abstract: An activation basin (1) is provided with inner basins (3) through which the waste waters circulate with the activated sludge. In this manner, the sludge depositing on the inner basins stay for their nitrification at least three days and preferably more than twenty days. The circulation may be activated by blown air (4).
Patent GB-2064472-A (GB)
Title: Garment hanger
IPC: A47G25/14
Filed: 1978-12-20
Abstract: A hanger for garments includes a hook H adapted to engage a rail and having an enlarged display portion A at a position level with or above the rail, and an indicating device 16 releasably attached to the display portion and being readily visible when the hanger is in use. <IMAGE>
Patent GB-2068691-A (GB)
Title: Method of coding and decoding messages
IPC: H04L9/18
Filed: 1981-01-30
Abstract: Method of coding and decoding messages wherein a basic key and a random message key, which is transmitted prior to the message, are used. Using a plurality of basic keys entails the problem that the proper basic key must be set in the receiving station. In accordance with the present method, the sequence of a portion (II) of the message key and of a number of check characters derived therefrom are coded, prior to the actual message transmission, using the basic key and a different portion (I) of the message key. Decoding in the receiving station is done by using a basic key which is chosen from a group of basic keys, and the different portion (I) of the message key. A test circuit 21 examines whether the decoded check characters correspond to the check characters derived in the receiving station from the decoded portion (II) of the message key. A positive test result indicates that the desired basic key has been found.
Patent GB-2073295-A (GB)
Title: Glasing
IPC: E06B3/54
Filed: 1981-03-13
Abstract: A framing rail 2 of channel cross-section for a plane of glass 16 comprises two side walls, 4, 6, one on each side of the pane of glass and connected by webs 8, 10. On the inside of the walls adjacent their free edges 12, 14, replaceable support strips 22, 24 which contact the pane of glass are mounted in guides 18, 20. At least one adjustment block 28 is arranged between the web 8 and the edge of the pane of glass 16. Cover plates 35 may be provided. <IMAGE>
Patent GB-2081014-A (GB)
Title: Improvements In the Manufacture of Semiconductor Devices
IPC: G11C11/411
Filed: 1979-03-06
Abstract: Two IGFETs (Q1, 02) having different threshold voltages due to opposite doping of their gates are produced by depositing a layer 6,6' of undoped polysilicon over the gate oxide 3, using a mask 7 to selectively dope part 6' of this layer, patterning to form doped and undoped gate electrodes 6', 6 and diffusing-in the opposite type impurity to form the source and drain regions 4, 5 and to dope the second gate electrode 6. The conductivity type of the first gate 6' is unchanged either because it is heavily doped or by using a thermal oxidation step to form an oxide layer which grows thicker on the heavily doped gate region than on the undoped gate and lightly doped substrate to produce a masking effect. The devices may be used to provide a voltage reference. <IMAGE>
Patent GB-2082384-A (GB)
Title: Oxidation of silicon wafers
IPC: H01L21/31
Filed: 1981-08-07
Abstract: Apparatus for use in the thermal oxidation of a silicon wafer, uses as the basic heating chamber a double-walled quartz tube (10) which includes a core portion (11A) in which the wafer (12) is maintained in an oxidizing atmosphere and an annular surrounding portion (11B) through which a HC1 mixture is made to flow. The flowing HC1 mixture reduces the introduction into the wafer of certain impurities, particularly transition metals. <IMAGE>
Patent GB-2090893-A (GB)
Title: Building pontoon bridges
IPC: E01D15/14
Filed: 1981-11-24
Abstract: A floating pontoon (1) having supports (9) for an incoming bridge section (3) is provided with an auxiliary retractable support (2) which is used to receive the incoming section (3), or to offload an outgoing section, and which is located centrally to reduce the danger of tilting the pontoon. The auxiliary support (2) has sliding or rolling elements (10) for supporting and allowing displacement of the bridge section (3) and has raising and lowering means (11) by means of which the support (2) may be lowered beneath the support surface (6, 9) of the pontoon (1). An incoming bridge section (1) engaging the auxiliary support (2) is located by a retractable guide/clamp 12 and by fixed guides 13. <IMAGE>
Patent GB-2091297-A (GB)
Title: Electrolysis process and electrochemical cell
IPC: C25B9/19
Filed: 1982-01-14
Abstract: A process and cell for electrolysis of alkali metal halides, especially sodium chloride, are described, wherein the anolyte and catholyte compartments are separated by a fluorinated ion-exchange membrane whose surface facing the catholyte compartment is of a polymer having carboxylic functionality and which has a roughness which does not exceed 1.5 microns. Such a cell and process operate at high current efficiency, low voltage and low power consumption.
Patent GB-2091979-A (GB)
Title: Generation of Boundaries on Raster Display
IPC: G09B9/30
Filed: 1982-01-26
Abstract: In an electronic circuit for generation of simple patterns on a TV type display, eg a Flight Simulator, the image is formed by logically generating a number of straight or curved boundaries. For a straight boundary, two ramp signals are derived, one at the line scan frequency and one at the field scan frequency. The amplitude and polarity of one or other of these is modified by external control and any required dc offset is added. The two waveforms are then fed to a voltage comparator, the logical output of which controls the video signal. Combination of the outputs of comparators for a plurality of lines allows an area to be defined, eg a polygon. Curved boundaries may be produced by using non-linear ramps <IMAGE>
Patent GB-2095091-A (GB)
Title: Removal of xanthine stimulants from cocoa
IPC: A23L5/20
Filed: 1982-02-09
Abstract: A process for extracting xanthine stimulants from a cocoa material comprises contacting a cocoa material swollen with at least 0.1 part by weight of water per part by weight of cocoa with a food-acceptable solvent gas which is supercritical in respect of temperature and pressure and separating the solvent gas containing the xanthine stimulants from the swollen cocoa material having a reduced content of xanthine stimulants. The cocoa material may be green, ground unroasted cocoa nibs and the gas is preferably carbon dioxide.
Patent GB-2095994-A (GB)
Title: Preparation having excellent absorption property
IPC: A61K9/02
Filed: 1982-03-05
Abstract: A preparation containing an absorption promoter selected from N- acyl amino acid derivatives or N-acyl peptide derivatives represented by the formula: R-CO-A (R is an aliphatic hydrocarbon group, an aromatic hydrocarbon group or an aryl-substituted lower hydrocarbon group which may optionally be substituted, and A is an amino acid residue or a peptide residue), preferably in the presence of a salt e.g. NaCl at a concentration exhibiting higher osmotic pressure than isotonic sodium chloride solution, and a medicine is found to promote absorption of the medicine through a gastrointestinal organ such as colon and rectum, and through vagina.
Patent GB-2096291-A (GB)
Title: Combined smelting and holding furnace
IPC: F27D99/00
Filed: 1982-03-24
Abstract: Combined smelting and holding furnace, primarily for aluminium alloys, comprises a vat (2) for a melt (11), the furnace having one filling-up part (4), one heat-emitting element part (5) and one discharge part (6). The furnace is designed for continuous operation in such a way that the temperature of the removed, molten metal is not lowered when the furnace is being refilled; also a reduction of oxidation of the metal is achieved. The furnace has the closed heat-emitting element part (5), separated from the filling-up part via a partition wall (22, 23) which has a lower part (22), made from a heat-insulating material and creating, at the bottom of the vat, a passage (21) through the smelt between the filling-up part and the heat-emitting element part. The partition wall also has an upper part (23). constructed from a heat- conducting material to radiate heat from the element part to the filling-up part in order to preheat material entering the furnace. <IMAGE>
Patent GB-2094755-A (GB)
Title: Handling plastics preforms in bottle production
IPC: B29C49/64
Filed: 1980-02-19
Abstract: A device for simultaneously receiving for transfer a plurality of hot parisons in bottle production has gripper means for the hot parisons in the form of a number of jaw sets 303. Each jaw set is secured to a pair of actuating arms 302, 304 for the opening and closing of all the jaw sets together. These arms may be driven by an air cylinder 314 constructed and arranged with a rack and pinion arrangement 310. Alternative embodiments are shown in Figs. 15 and 23. For transferring the hot parisons, there may be provided a transfer plate carrying thereon a set of simultaneously actuated collets each for receiving a parison, and an arrangement for lateral movement of the plate. Each collet conveniently has inner and outer sleeves, the inner sleeves being cam-actuated and the outer ones being held together by an elastic member. <IMAGE>