baber/WOPTO huggingface dataset:
Patent GB-2028893-A (GB)
Title: Forming a surfactant system for an oil recovery process
IPC: C09K8/584
Filed: 1978-08-22
Abstract: In the recovery of oil from a formation with an aqueous surfactant solution containing an anionic surfactant such as a petroleum sulfonate, a cosurfactant such as tertiary butyl alcohol, and an electrolyte, a specific surfactant system which is suitable for the given formation, is selected by: (1) analyzing the formation brine and determining the total effective Na<+> concentration, on the basis that each part Ca<++> is equivalent to about 14 parts Na<+> and each part Mg<++> is equivalent to about 16 parts Na<+>; (2) comparing this total effective Na<+> concentration with previously prepared phase-volume diagrams of surfactant systems partitioning into separate phases as a function of electrolyte concentration; and (3) adjusting the electrolyte concentration, hydrophobic content of the surfactant, or solubility of the alcohol to give a particularly effective system for recovering oil. <IMAGE>
Patent GB-2032854-A (GB)
Title: Life Jacket
IPC: B63C9/115
Filed: 1978-09-30
Abstract: A lifejacket comprises a one-piece body member of moulded, flexible, plastics foam which includes a head- rest portion (10), a shoulder portion (12) which incorporates a neck aperture (16), and a chest portion (14). A longitudinal slit (20) extends through the chest portion (14) from the neck aperture (16) to divide the chest portion (14) into two similar parts. A one piece tape (25) passes through two longitudinally spaced transverse bores (26,28) of the jacket for securing it to the wearer. In order to provide protection for the wearer's head, a hood (23) is disposed within a pocket (21) formed within the lifejacket in the region of the neck aperture (16), the hood (23) being extendable from the pocket (21) to cover the head of a wearer of the lifejacket. <IMAGE>
Patent GB-2014396-A (GB)
Title: Digital television system and method
IPC: H04N5/073
Filed: 1979-02-02
Abstract: A method and apparatus for digital television video signals allows recorded information to be replayed by a helical scan apparatus at a speed different to that at which the information was recorded. The information relating to each line of video is provided with codes identifying both the individual line and the field. The line information is used in a storage process for providing either the write or read addresses of the information to allow a picture to be reconstructed. The apparatus can also be used as a synchroniser for two broadcast programmes in which case the speed of information in and out will be the same, but the storage process is used to provide an elastic delay.
Patent GB-2017333-A (GB)
Title: Viewfinder system for a single- lens reflex camera
IPC: G03B17/20
Filed: 1979-02-09
Abstract: A viewfinder system for a single- lens reflex camera is provided having a pentahedral roof prism and an optical system for reflecting-in the f-number. The optical system consists of a single-reflecting part and a triple- reflecting part. A mirror 5 serves as a single reflecting part which is arranged completely behind and above the foremost edge of the pentahedral room prism. A secondary prism serves as the triple reflecting part and is arranged substantially behind and below the pentahedral roof prism. In this way the image of the f- number from the lens diaphragm ring is reflected into the optical path so as to be viewed simultaneously with the view finder image. <IMAGE>
Patent GB-2014935-A (GB)
Title: Feeding briquettes to a conveyor
IPC: B65G49/08
Filed: 1979-02-21
Abstract: An apparatus comprising a first conveyor (13) for a series of briquettes arranged close to one another, a second conveyor (15) of higher speed than the first conveyor for receiving briquettes from the first conveyor (13) and for depositing a predetermined number of briquettes on a briquette carrier (14) and a feed conveyor (10) associated with the first conveyor (13), the feed conveyor (10) being divided into a plurality of sections (101.102) each section being adapted to receive said predetermined number of briquettes, and each section being capable of being raised and lowered between a first and a second position, the receiving plane (A) of the feed conveyor being above the receiving plane (B) of the first conveyor in said first position and below the receiving plane of the first conveyor in said second position. <IMAGE>
Patent GB-2017626-A (GB)
Title: Controlling Bag Filling Apparatus
IPC: B65B1/04
Filed: 1979-03-29
Abstract: To ensure that only a single bag (6) is fed by suction heads (4) to a bagging nozzle (8), a pick-up (17) is provided near a reception table (2) on to which empty bags (6) are withdrawn successively from a pile of bags, to determine the bag thickness, the output signal of the pick-up being fed as an actual-value to a control system (16), and the control system (16) blocks the operation of a filling facility (11) connected to the nozzle (8) in the event of a set-value being exceeded after comparison of the set- value and actual-value. <IMAGE>
Patent GB-2022745-A (GB)
Title: Improvements in or Relating to Connections to Flexible Rubber Hoses
IPC: F16L31/02
Filed: 1979-03-30
Abstract: A flexible rubber hose comprises a lateral offtake device incorporating a tubular spigot 10 having a base 11 which bears against the inner surface of the hose wall, and a clamping ring 15. The base 11 or the clamping ring 15 has two consecutive clamping fins of different diameters and spaced apart radially by 0.4 to 1 times the hose wall thickness, whereas the other clamping element, constituting the ring 15 at the base 11, has at least one clamping fin of intermediate diameter. In alternative arrangements single fins may be provided on both the base 11 and the ring 15 and these may be barbed. Furthermore the base 11 may be conically shaped or reinforcements in the form of washers may be provided at the offtake point. <IMAGE>
Patent GB-2019177-A (GB)
Title: Controllably heating liquid
IPC: A61L2/24
Filed: 1979-04-11
Abstract: A heater for controllably heating liquid in a container comprises a substantially flat, elongated insulating pad 15 in which an electrical heating device 16 is embedded in such a way as to heat the end portions 18 of the pad but not the central portion 19, a first thermostat 24 electrically connected to the heating device located in the non-heated section 19 to control the temperature of the container at its interface with the pad and a second thermostat 22 electrically connected to the heating device located in the heated section 18 to control the temperature of the heated section. The pad is preferably a flexible elastomer e.g. silicone rubber and the container e.g. a sterilizer is stood on its upper surface. The pad is supported on a plastics support member provided with a raised rim which restrains both the pad and the liquid container. <IMAGE>
Patent GB-2024340-A (GB)
Title: Shaft seals
IPC: F16J15/32
Filed: 1979-05-11
Abstract: A temperature responsive expansion device comprises a piston and a cylinder containing a substance having a high coefficient of thermal expansion in which the piston comprises a cylindrical shaft 1 which is urged outwardly of the cylinder when the substance expands, the shaft passing through a central bore of a bush 2, located in the cylinder towards one end thereof, and the bush carrying a gland seal engaging about the shaft to provide sealing yet to permit axial movement of the shaft in the bush, characterised in that the gland seal comprises two rings, one 11 of p.t.f.e. surrounding the shaft, and in turn surrounded by the second ring 12 which is of nitrile rubber, the two rings being located in a cylindrical cavity 14 formed in the bush, and the rings being held within the cavity by a washer 15 inserted behind the rings and in turn secured in the cavity by a part 16 of the bush at the open end of the cavity being inwardly deformed behind the washer. <IMAGE>
Patent GB-2021742-A (GB)
Title: A continuous ring furnace suitable for baking and/or rebaking carbonaceous articles and a cooling device therefor
IPC: F27B13/00
Filed: 1979-05-24
Abstract: A cooling device 10 suitable for the forced cooling of a continuous ring furnace comprising a sequence of chambers CR, to form an endless ring or loop, Comprising a first hollow body 11 which has a bottom periphery 16 corresponding with the periphery of the fire pit PC on which the hollow body 11 is mountable, the hollow body 11 comprising an upper wall 12, two opposite end walls and two opposite side walls 14 and adapted to sit on a shoulder 18 of the fire pit PC, and an air-blowing means 25 mounted when in use within a second hollow body 21 on the upper wall 12 of the first hollow body 11, and the second hollow body being open at an upper part 22 thereof and when in use communicating with an opening in the upper wall 12 in order to take in ambient fresh air through the opening 22 and force the fresh air downwardly through the first hollow body and the fire pit PC. <IMAGE>
Patent GB-2030689-A (GB)
Title: Method and means for controlling the operation of fluidised bed combustion apparatus
IPC: B01J8/18
Filed: 1979-07-27
Abstract: In a fluidised bed combustion apparatus the supply of combustion air (19) fed to the apparatus to fluidise the bed (11) and to support combustion is augmented by inert gas (26), preferably apparatus exhaust gas. The proportion of inert gas is determined by the quantity supplied by a valve (27) to a mixer (23) supplying the mix of fluidising gases to tubes (12). Operation of the bed is controlled by a sensor 22 responsive to the thermal demand of the apparatus and by a sensor 30 responsive to the temperature of the bed. Sensor 22 controls fuel supply by a feeder (16) and combustion air supplied by a valve 21 to the mixer (23) and to a valve (31) for supplying air above the bed. Sensor 30 controls the proportion of inert gas in the mixer and the degree of opening of valve 31 supplying combustion air above the bed. <IMAGE>
Patent GB-2032593-A (GB)
Title: Tap gutters for shaft furnaces
IPC: F27B1/21
Filed: 1979-08-01
Abstract: The invention provides a trough comprising individual plates defining a base (5) and sidewalls (6) with a fireproof lining (4) wherein the sidewalls (6) are slideably connected to the base (5) and slideably mounted with respect to lateral supports (12). The connection between the sidewalls (6) and the base (5) is preferably through slotted brackets and the support for the sidewalls effected through struts (10) and bearing surfaces (11). <IMAGE>
Patent GB-2053337-A (GB)
Title: Attachment for material
IPC: A63H3/38
Filed: 1979-10-26
Abstract: An attachment, for example an ornament fastenable to plush material comprises a stud 20 having a head 18 which may be fashioned as an eye for a plush toy animal. The ornament further includes a stem for extending through the plush material 40, 42, and further includes a recessed washer 22, positioned on the stem. At its upper side, the washer has a peripheral flange which defines a recess for receiving the head of the stud. The washer 22 is thrust forcibly over the stem against the underside of the plush material, deforming the latter sufficiently that a portion of the head rests below the lip in the recess. <IMAGE>
Patent GB-2066942-A (GB)
Title: Cab heater for motor vehicle
IPC: B60H1/03
Filed: 1979-12-05
Abstract: A coolant circuit has a main section 1 joining a cab heater 2 and an engine 3, and an auxiliary section 5 containing an auxiliary fuel burning heater 4. A by-pass in the form of a non-return valve 7 is provided for the engine, and a valve 8 is provided which is operable by the key switch of the vehicle to block the flow through it when the engine is not running, but to permit flow through it when the engine is running. This ensures that the auxiliary fuel burning heater cannot be operated in such a way as to waste heat by heating the engine when it is not running since the engine is automatically by-passed in this condition. <IMAGE>
Patent GB-2043653-A (GB)
Title: Vulcanisation of polychloroprene
IPC: C08K5/5399
Filed: 1979-12-17
Abstract: The use of C10 to C14 alkanoic acids, especially lauric acid, as a processing aid in the vulcanisation of polychloroprene rubbers by heating in the presence of magnesium oxide, zinc oxide and thiophosphoric-N,N',N''- trimethyltriamide, overcomes the technical problem of blooming on storage which is obtained when the more usual stearic acid is used. Pre-formed mixtures of the acid and the amide in the ratio of 0.5:1 to 2:1 are described. A blowing agent may be included in order to produce cellular and microcellular products.
Patent GB-2043937-A (GB)
Title: Trial Frames
IPC: A61B3/04
Filed: 1979-12-18
Abstract: A trial frame 1 in which one or both of the graduated quadrant portions 4 is rotatable relative to the trial frame and in which the trial frame is provided with a horizontal datum 5 for reference purposes. By means of the present invention it is possible to measure accurately and simply an axis of curvature of a toric lens such as a toric contact lens. <IMAGE>
Patent GB-2066200-A (GB)
Title: Check-out counter including bag-making apparatus
IPC: B65B5/02
Filed: 1979-12-28
Abstract: A checkout counter (10) comprises a bagging station (18) in which goods are deposited in bags (32), a machine (30) for making self-supporting, open bags from a web of self-supporting, bag-making stock and a mechanism for transferring open bags from the bag- making machine to the bagging station. <IMAGE>
Patent GB-2067975-A (GB)
Title: Video or audio cassette container
IPC: G11B23/023
Filed: 1980-01-30
Abstract: A container (2) for at least one video or audio cassette is constructed to look like a book. <IMAGE>
Patent GB-2045258-A (GB)
Title: Treated Filler for a Thermoplastic Polymer
IPC: C08K9/10
Filed: 1980-02-21
Abstract: Fillers for thermoplastic polymers are provided with a surface layer of a liquid ethylene oxide oligomer. The filler can be coated in the presence of a solvent or diluent, which is then removed by heating between 50 and 200 DEG C.
Patent GB-2044082-A (GB)
Title: Windscreen wiper assembly
IPC: B60S1/40
Filed: 1980-02-27
Abstract: A windscreen wiper assembly comprises a main yoke 1 pivotally connected to wiper arm 2 by a pin 5 passing through opening 7 of the wiper arm and a coupling member 4 having a slot 13 communicating with a passage 11 large enough to receive the pin, the slot 13 receiving and being deformed by grooved portion 9 of the pin during translational movement of the grooved portion therealong, the slot resiliently regaining its initial form after passage therethrough of the grooved portion so as to lock the pin therein. The coupling member 4 may also be provided with a catch operatively associated with a spindle 3 on the main yoke, and tongues 14 which snap-engage over the lower portions of the side flanges of the main yoke. <IMAGE>
Patent GB-2052614-A (GB)
Title: A profiled housing rail
IPC: B60J10/75
Filed: 1980-06-05
Abstract: A profiled housing rail for a vertically slidable window of a motor vehicle consists of an upwardly open channel profile section (16) in which the lower edge (14) of a window glass (6) is seated. The lower region of the profile section (16) is extended downwardly in the form of a laterally open, generally channel shaped profile part (12) in which the sliding elements (10) of a window operating means (7) are guided. The interior of the web wall (17) of the profile part (12) is enlarged by a longitudinal bulge (18) reducing sliding contact between the interior of the profile part (12) and the sliding elements (10). The housing rail is preferably a single extrusion of for example, aluminium and the profile section (16) may have an external drainage gutter or gully (19). <IMAGE>
Patent GB-2055122-A (GB)
Title: Austenitic corrosion-resistant steels
IPC: C22C38/00
Filed: 1980-06-26
Abstract: An austenitic steel is provided which contains 0.004 to 0.015% by weight calcium together with in wt%:-       Cr     12 - 30       Mn     5 - 35       N    0.35 - 1.6       C    0.02 - 0.2       Si    0.2 - 6       Ni    0 - 10       Cu    0 - 4       Mo    0 - 6       V    0 - 2.5       Fe    balance One steel of the invention consists of 0.05% C, 12% Mn, 20% Cr, 0.56% N, 1-10% Si and 0.008% Ca, the balance being iron. The steels provided by the invention have high resistance to intercrystalline corrosion, stress corrosion and to corrosion under vibrational load.
Patent GB-2080175-A (GB)
Title: Electric arc apparatus for surfacing elongated stock
IPC: B23K9/013
Filed: 1980-07-16
Abstract: The apparatus comprises a body 1, having openings for the passage of stock 3, an electrode 4 and, downstream of the electrode, a guide 2 movable relative to and longitudinally of the stock axis by virtue either of the body being movable as shown or of an extensible coupling between the guide and the body. Movement of the guide caused by the arrival of an unduly thickened portion 18 of the stock actuates a sensor 13 which stops stock feed rollers 16. The sensor may be a limit switch, photocell or strain gauge. The apparatus can be used for cleaning the surface of conductive stock of scale or grease and for refining the surface. <IMAGE>
Patent GB-2085045-A (GB)
Title: Shelter
IPC: E04H15/00
Filed: 1980-08-21
Abstract: This invention relates to a collapsible nuclear shelter comprising a frame 1 and at least one sheet of fabric supported on said frame 1 so as to substantially enclose a sheltered space within said frame 1. The frame is made up of a plurality of elongate frame members 2 joined together by connecting means 3 so as to form a substantially rigid or semi-rigid frame 1 having a base 4 with first side frame members 5 extending upwardly from a first side 6 of said base 4, in a plane substantially perpendicular to said base 4 to a ridge member 7, and second side frame members 8 extending upwardly from a second side 9 of said base 4 opposite said first side 6, in an inclined plane, to said ridge member 7. The fabric is substantially resistant to the passage of particulate air-borne material. <IMAGE>
Patent GB-2058652-A (GB)
Title: Method of making an electrical connector
IPC: H05K3/32
Filed: 1980-09-12
Abstract: A method of making an electrical connector of a rubbery material, for example, in the form of an elongated rod-shaped body, and provided on the surface thereof with parallel strip-like electroconductive paths (51) running perpendicularly to the longitudinal direction of the rod-shaped body, comprises preparing a composite sheet-like assembly which is a stratified sheet of an insulating carrier film (52) and provided with a set of parallel electroconductive paths (51) on one surface thereof and an uncured rubber sheet (53); placing the composite sheet-like assembly between the upper and lower mould parts (11, 12) of a metal mould (1) having groove-like cavities (2a, 2b) in such a manner that the parallel electroconductive paths of the composite sheet perpendicularly cross the groove-like cavities (2a, 2b) and the composite sheet stretches beyond the peripheries of the cavities, and then compression moulding the composite sheet by moving the upper and lower mould parts (11, 12) together with an appropriate pressure with heating so as that the carrier film (52) is deformed to comply with the surface of one of the cavities 2b while the uncured rubber of the sheet (53) is plastically deformed and cured to fill the hollow space between the cavities. <IMAGE>
Patent GB-2066981-A (GB)
Title: Introduction of sample material into a graphite tube in atomic absorption spectroscopy
IPC: G01N1/00
Filed: 1980-10-27
Abstract: A device for introducing a solid sample into a graphite tube of an atomic absorption spectrometer comprises basically a small diameter tube 10 capable of fitting into the dosing opening of the graphite tube and a rod-like piston 18. The free end of the tube 10 receives and retains the sample and movement to the right of the piston 18 ejects the sample into the dosing opening. Movement of the piston 18 is controlled by a larger piston 24 which operates in a cylinder 22 under pneumatic pressure. The piston 24 can be given a pre-selected range of movement by co-operation of a spring catch 36 with one of a number of grooves 28. A retractable needle and a retractable "spoon" are also disclosed by which the sample is physically introduced into the dosing opening. <IMAGE>
Patent GB-2087211-A (GB)
Title: Dairy process
IPC: A23C13/14
Filed: 1980-11-17
Abstract: A method of making cream involves separating a high melting fraction and a low melting fraction from butter oil, and emulsifying one of the fractions with a low fat milk fraction enriched in membrane substances. Emulsification of the high melting point fraction can give whipping creams of low fat content and good viscosity and of less temperature sensitivity than conventional creams, the cream obtained preferably being homogenised, then pasteurised, and then homogenised again. Emulsification of the low melting point fat fraction yields cream which can be churned to give a butter product which will spread at refrigerator temperatures. The low fat milk fraction may be the serum separated in the production of the butter oil, but there may be used instead or in addition buttermilk or butter serum from another source. The butter fat fraction may be emulsified together with a non-milk fat.
Patent GB-2077801-A (GB)
Title: Framed building panel
IPC: E04C2/38
Filed: 1980-12-18
Abstract: A frame assembly for a prefabricated building panel is formed by interconnecting a first pair of frame members (11) with a second pair (12) arranged at right angles. Each frame member is channel shaped in cross- section and includes a pair of side flanges (13, 16). The channel mouths of the first pair of frame members (13) are directed towards the interior of the assembly and overlap, and lie closely adjacent, the side flanges (16) of the other pair at the junctions between the frame members. <IMAGE>
Patent GB-2093644-A (GB)
Title: Apparatus for operating discharge lamps
IPC: H05B41/292
Filed: 1981-02-20
Abstract: A low frequency AC voltage is rectified through a full-wave rectifier (2) to obtain a pulsating voltage, which is superimposed with an auxiliary voltage of a predetermined level provided from an auxiliary power source (6), and the resultant composite pulsating voltage is inverted at an inverter (3) to a high frequency voltage. The high frequency voltage thus obtained from the inverter (3) is used to operate a discharge lamp. Minimum value Vmin of the resultant voltage is set to be 1/3 to 4/5 of the maximum value Vmax of the resultant voltage. <IMAGE>
Patent GB-2072288-A (GB)
Title: Connectors for tubing
IPC: F16L37/02
Filed: 1981-03-03
Abstract: A medico-surgical connector arranged to make fluid connection between one end of a tube 4, such as an epidural cannula, and, for example, the nose 5 of a syringe 6. The connector has an elastomeric tubular inner member 2 with an axial passage 25 within which the tube is inserted. The inner member is retained at either end 21 and 24 within respective tubular outlet members 1 and 3 of a rigid plastics material. The outer members can be angularly displaced relative to one another, thereby twisting and elongating the inner member to distort its passage into sealing contact about the tube. The outer members have cooperating ratchet teeth 16 and 30 which serve to lock the outer members, with the inner member in a distorted state. One of the outer members 3 is formed with luer-tapered bore 37 that is in communication with the passage through the inner member and that receives the nose of the syringe. <IMAGE>
Patent GB-2073858-A (GB)
Title: Motor Vehicle Brake Valve
IPC: B60T7/06
Filed: 1981-03-18
Abstract: An operating assembly for a vehicle brake valve includes a foot pedal 4 which, when depressed, operated the brake valve to apply the service brake. An electical switch 1 is also operated when the foot pedal is depressed to actuate a further braking device, for example a retarder. To enable the effects of hysteresis in the switch to be reduced and to facilitate access to the switch, a proximity switch is used which is located in a stop 2 on which the pedal rests in its inoperative position. Further stops with proximity switches may be provided. <IMAGE>