baber/WOPTO huggingface dataset:
Patent GB-2000334-A (GB)
Title: Control of i.c. engines
IPC: F02M25/07
Filed: 1978-06-13
Abstract: A method and apparatus for controlling the running of a spark-ignited I.C. engine (10) under conditions of fuel input less than stoichiometric, to improve the efficiency and stability of running under these conditions, utilises an ionisation detector (16) positioned in the engine exhaust gas duct (14) to detect those firing cycles with "late burn" of the combustible mixture during the firing stroke. The detector senses the increased ionisation of the exhaust gas flow caused by such "late burn" cycles, and produces unusually large voltage spikes (15) in its output signal corresponding to the occurrence of these "late burn" cycles. A control circuit (19) progressively weakens the combustible mixture in steps during running of the engine (10) until one or more such unusually large voltage spikes (25) occurs in the detector output, in response to which the control circuit (19) automatically produces a feedback signal which enriches the mixture to a higher value. <IMAGE>
Patent GB-2025369-A (GB)
Title: Covering case
IPC: B65D5/465
Filed: 1978-07-10
Abstract: A covering case, e.g. for a book, comprises either a pair of open ended transparent plastics shells c, telescoping one within the other, or a transparent tubular plastics box having end flaps which can be folded- in to close the box. <IMAGE>
Patent GB-2015494-A (GB)
Title: Priming explosives
IPC: C06C7/02
Filed: 1978-08-16
Abstract: A development of the methods of Specification 37013/76 in which lead styphnate and lead azide explosives are produced in situ in explosive devices including both ammunition and detonators particularly, but not exclusively, involving formation of premixes of relatively insensitive materials. Other ingredients of the priming compositions are barium nitrate, lead peroxide, lead nitrate, potassium chlorate, powdered glass, powdered carbon, grit, tetrazine, lead trinitrophloroglucinate, antimony sulphide, calcium silicide, aluminium powder, tetryl, PETN, gum arabic, polyvinyl alcohol, and a surfactant.
Patent GB-2003263-A (GB)
Title: A compression, condensation evaporation refrigeration system
IPC: F25B40/02
Filed: 1978-08-29
Abstract: A refrigeration system comprises a compressor (111) for increasing the temperature and pressure of a gaseous refrigerant; a condenser (122) connected to the compressor wherein the refrigerant changes state from a gas to a liquid; an economizer (128) connected to the condenser in which the liquid refrigerant is partially flashed; a heat exchanger (142) for condensing the flash gas to liquid refrigerant; and an evaporator (136) for cooling a heat transfer fluid, said evaporator receiving liquid refrigerant from the liquid bath (130) via an expansion device (134), and discharging gaseous refrigerant to the compressor. In a second embodiment (Fig 3, not shown) a vapour conduit (48, Fig 3) interconnects the economizer with the first stage of a two-stage compressor. <IMAGE>
Patent GB-2031323-A (GB)
Title: Injection moulding video or phonography records
IPC: B29C45/26
Filed: 1978-08-30
Abstract: The recording grooves are more accurately reproduced from a styrene polymer, by injecting it at 425 to 475 DEG F into a mould cavity which has been heated by circulated fluid to 140 to 150 DEG F, allowing the cavity temperature to be raised by the injected polymer to 160 to 170 DEG F, and then cooling the cavity by circulated fluid to 130 to 140 DEG F, prior to removing the moulded record from the cavity. The heating and cooling fluids are circulated from reservoirs 74, 98, via valves 80, 96, and 104, 108, with control effected through a circuit responsive to cavity temperature measured by a thermocouple 114. The cavity is defined between mould parts of which each has interconnected fluid circulating passages 50, 52, and a record groove producing matrix 42 clamped between a member 46, and members 40 and 44. <IMAGE>
Patent GB-2005662-A (GB)
Title: Process for the production of Coenzyme Q
IPC: C12P7/66
Filed: 1978-09-04
Abstract: A process for producing Coenzyme Q which comprises cultivating a microorganism belonging to the genus Pseudomonas in a culture medium to which is added isopentenyl alcohol (3-methyl-3-butene- 1-ol), dimethyl allyl alcohol (3- methyl-2-butene-1-ol), geraniol, isopentenyl acetate, dimethyl allyl acetate, geranyl acetate and/or beta - methyl crotonic acid and obtaining the Coenzyme Q so produced.
Patent GB-2012795-A (GB)
Title: Coating Compositions
IPC: C09D11/00
Filed: 1979-01-15
Abstract: Coating compositions are prepared from at least one chromagenic material, preferably a colour developer of the acidic electron donor type, and at least one solid aliphatic dioic acid, with the possible addition of colour intensifiers, colour stabilizers, and rheology modifying materials. The disclosed use of such compositions as hot melt chromogenic coating compositions for the production of pressure-sensitive carbonless record sheets by coating and setting the composition on a suitable substrate is shown to have substantial advantages, which are most apparent in the production of manifold carbonless forms, since the troublesome and expensive steps of heating, drying and solvents extraction or recovery are avoided.
Patent GB-2041267-A (GB)
Title: Preventing cast metal-mould welding
IPC: B22D19/00
Filed: 1979-01-24
Abstract: When molten metal, preferably tool steel, is cast in metal moulds, preferably steel, loosely fitting metal inserts (34) are placed on interior surfaces of the moulds immediately below the molten metal entry position (14) thus preventing welding between the mould and cast metal. The inserts (34) are not always welded to the casting even if of a material to which welding would be expected. The castings are usually unsound and constitute banks for subsequent working to make articles, particularly tool blades. The inserts, often in the form of steel strips, if they do not readily detach from the castings, are cropped during later dimension reduction steps during which cavities and voids are removed. The strips may be placed in a series of mould parts which are open at their sides, the sides being closed by one set of mould parts permanently situated at the metal pouring station. <IMAGE>
Patent GB-2016446-A (GB)
Title: An agent to preserve bacteriological test specimens comprising complex compounds of boric acid
IPC: C07F5/04
Filed: 1979-02-21
Abstract: A preservation agent in liquid or tablet form for use in test specimens intended to be subjected to bacteriological laboratory analyses comprises complex compounds of organic boric acid of the type:   <IMAGE>  wherein R is:  ethylene glycol  1,2-propanediol  glycerol  fructose  mannitol  sorbitol or other water-soluble dihydroxy or polyhydroxy compounds, said complex compounds being produced by heating, in addition to which 1 to 2 moles of the reaction water produced during the manufacture of said complex compounds have been removed.
Patent GB-2041835-A (GB)
Title: Dissected Pictures
IPC: B44C1/00
Filed: 1979-03-01
Abstract: A picture is created out of textile yarns by sticking lengths of coloured yarns onto a backing sheet according to pre-printed markings on the sheet. The picture may be made from a kit which includes a pre-printed backing sheet, lengths of coloured yarns and adhesive. <IMAGE>
Patent GB-2046190-A (GB)
Title: Improvements in and Relating to Attachments for Trailer Units
IPC: B60S9/21
Filed: 1979-05-18
Abstract: An attachment for trailer units, e.g. caravans, is disclosed comprising a jockey wheel 11 carried on a support 16, the support in use being attached to a trailer unit so that the wheel 11 projects beneath the support and engages the ground on which the trailer unit stands, the attachment including a chain or toothed belt 21 for transmitting a hand power drive to the wheel from a power input such as a handle 33. The attachment also includes means such as a tiller bar 28 allowing a hand steering movement of the wheel 11 relative to the support and hence relative to the trailer unit to which the support is attached in use. The support comprises a first portion 16 which is adapted to be secured to the trailer unit, and a second portion 15 which carries the wheel 11 and which is slidable up and down relative to the first portion. the support also includes means to clamp the second portion to the first at selected positions within its range of sliding movement. <IMAGE>
Patent GB-2053704-A (GB)
Title: A flask for use in stirring particles in suspension such as microcarriers for anchorage-dependent living cells in a liquid culture medium
IPC: C12M3/02
Filed: 1979-07-17
Abstract: The flask bottom is formed with an upwardly directed conical portion 3 delimited by an annular trough 5. The flask is designed so that the speed of revolution of the stirrer 1 stirring the medium in the flask can be low enough to avoid damage to the cells being swept around in the medium while at the same time maintaining the microcarriers in uniform suspension and obviating the risk of accumulation of the microcarriers at the centre or edge of the flask bottom. <IMAGE>
Patent GB-2031578-A (GB)
Title: Heat exchanger assembly
Inventor: SCHWARZ ANTON
IPC: F28F21/08
Filed: 1979-08-21
Abstract: In a heat exchange conduit assembly (e.g. in a convection air heater) wherein one end at least of a riser pipe 2 is connected, with the interposition of a sealing element 5, to a corresponding opening 4 in a header pipe 1 (conveying e.g. a heating medium), the connecting means comprises webs 6' with slots 13 therein in which are received the edges of opposed fins 3 projecting from the riser pipe 2, welds 12 being formed in said slots to secure the fins 3 to the webs. The webs 6' may as shown, be formed at the ends of a strip 7 embracing the pipe 1. Or the webs may comprise elements welded to the pipe 1 (e.g. Figure 4) or formed integrally with the pipe 1 (e.g. Figure 1).   <IMAGE>
Patent GB-2031033-A (GB)
Title: An Apparatus for Inserting a Weft into a Shed in a Jet Loom
IPC: D03J1/22
Filed: 1979-09-13
Abstract: Apparatus for inserting a weft into a shed in a jet loom in which a plurality of auxiliary nozzles 7 for jetting an auxiliary fluid and a plurality of guide members 4a for guiding the auxiliary fluid and a weft are arranged on a sley. Each guide member is provided with an opening 6a by which a passage for guiding the auxiliary fluid and a weft is formed. The transversal cross-sectional area of the opening is gradually expanded toward a direction opposite the direction for weft insertion into a shed. <IMAGE>
Patent GB-2070190-A (GB)
Title: Vibrator motor mounting
IPC: B06B1/00
Filed: 1980-02-20
Abstract: A vibrator motor having a flange 16 is mounted by bolts 22 which lie in bores 20 with substantial clearances, and nuts 24, having hemispherical surface portions, engage in frusto-conical counterbores 18 so as to increase the length of line contact between the nuts and the motor flange. <IMAGE>
Patent GB-2046206-A (GB)
Title: Safety device for a shelf service apparatus
IPC: B66F17/00
Filed: 1980-03-24
Abstract: A shelf service device is provided with safety device including a pawl and ratchet mechanism 9 and 16 for interlocking a lever 14 with a shaft 8 of the hoisting mechanism, movement of the lever 14 being resiliently resisted by a spring 19 braced against a fixed part of the apparatus. The hoisting mechanism acts on the carriage by way of lifting elements 6 connected to members 23 which in the event of fracture of the lifting elements are urged by a spring 9 into clamping contact with the mast 4. <IMAGE>
Patent GB-2050078-A (GB)
Title: A plug connector
IPC: H01R12/50
Filed: 1980-04-03
Abstract: A plug connector suitable for a printed circuit board has contact elements arranged in pairs with projecting pins 14 in a common plane P. To achieve this configuration, the contact elements are identical, and each has a contact spring 12 projecting from a flat side portion 11, to the opposite side of which the pin 14 is secured. One contact element of each pair is turned through 180 DEG  relative to the other, to place the pins in the plane 14. <IMAGE>
Patent GB-2053941-A (GB)
Title: Curing of polyamic acids or salts thereof by ultraviolet exposure
IPC: G03F7/038
Filed: 1980-05-09
Abstract: A process for curing a film of polyamic acid or a salt thereof to the corresponding polyimide in the absence of externally applied heat comprising exposing the film to ultraviolet (i.e. actinic) radiation for a sufficient time and at a sufficient intensity to cure same. A photosensitized polyamic acid film comprises the acid, or salt thereof, and a photoinitiator. The film can be selectively exposed in an imagewise fashion through an appropriate mask followed by developing to remove unexposed areas.
Patent GB-2087606-A (GB)
Title: Computer Systems
IPC: G07C9/00
Filed: 1980-07-01
Abstract: This invention is an arrangement for protecting a computer system in which a central computer is connected by a common 'Bus', and a number of modems to external terminals. There is an integrity protection unit connected between the central computer, and the modems, and programmed by a control unit directed to it to recognise only codes from the modems selected by a programme. The protection unit prevents a thief when connected to the 'Bus' being able to deceive the computer.
Patent GB-2055906-A (GB)
Title: Presser foot for a knitting machine
IPC: D04B15/90
Filed: 1980-07-11
Abstract: A presser foot device, for a V-bed knitting machine, comprises a presser foot carriage 1, 6 for movement along the needle beds in synchronism with needle operation, a support element 5 extending down towards the gap between tile needle beds and resiliently mounted for up-and-down movement, and presser means 28 fixed on the support element 5 and capable of operating over a region extending from in front of the commencement of the rise of the needles for knitting to the area of needle cross-over. The presser means 28 provides in the neighbourhood of each bed wall a continuous stitch guide surface inclined downwardly and rearwardly and then rearwardly to push and hold down stitches. The presser foot device further comprises a resilient pressure foot 29 also fixedly mounted on the support element 5 to extend rearwardly from the presser means 28 beneath the needle tent at a height above said stitch guide surfaces of means 28.   <IMAGE>
Patent GB-2081878-A (GB)
Title: Ventilators
IPC: F24F13/075
Filed: 1980-07-14
Abstract: Ventilation apparatus adapted to combine the operating features of an air extract system and a recirculation system comprises a number of pivoted blades or shutters mounted over openings in the sides of a vertical exhaust duct. Below the opening is mounted a reversible air flow fan. When the fan is blowing air up, the blades are blown open, to allow air to pass up the duct, at the same time the blades also close the openings in the sides of the duct. When the fan is off, the blades, due to their slight imbalance fall down onto a stop within the duct to hold the blades in a horizontal position forming a 'back-draught' shutter. When the fan is reversed and blowing down, the blades remain in their horizontal position and air is drawn through the openings in the duct and discharged down by the fan.
Patent GB-2057959-A (GB)
Title: Shaping soft permeable material
IPC: B29C70/40
Filed: 1980-07-14
Abstract: A soft permeable material, such as a foamed plastics material or a fibrous material is shaped, and optionally provided with one or more facing layers, by applying to the faces thereof a polyurethane based prepolymer composition under such conditions that a non-tacky coating having latent adhesive properties is formed. The coated material may be stored for a period of several months and subsequently shaped by the application of heat and pressure sufficient to cure the pre-polymer. Facing layers can be bonded thereto simultaneously without the application of additional adhesive substance. The latent adhesive substance may be applied to the permeable material in solution or in the form of a dry film. In the latter case the film may be applied initially to a facing layer. The latent adhesive substance may be used to form reclaimed waste material into a coherent mass which can subsequently be shaped and faced without the application of further adhesive substance.
Patent GB-2057668-A (GB)
Title: Gasketing of plate heat transfer apparatus
IPC: F28F3/10
Filed: 1980-08-13
Abstract: In heat transfer apparatus of the plate type, gaskets around the plates are normally elastomeric gaskets fixed by adhesive into pressed recesses in the plates. These gaskets are expensive and the technique of fixing and replacing them is time consuming. In accordance with the present invention, a pressed groove 8 in a plate 1 is filled with a body 9 of plastics material having the capacity of adherence to the metal of the plate 1. This body 9 of plastics material is then formed with an accurate groove 10 to receive and mechanically retain a seal 11. The groove 10 and gasket 11 may be duplicated to form a double seal. <IMAGE>
Patent GB-2062059-A (GB)
Title: Method and means for building an insulating wall
IPC: E04B2/78
Filed: 1980-10-08
Abstract: Method for erecting an insulating building by mounting insulating wall sections (3) between vertical posts (1) so that the posts are completely enclosed by a core of insulating materials (7) to avoid cold conductions. The wall sections are pressed tightly against each other thus ensuring tightness. The light materials facilitate the transportation and the erection of the building. The wall section (3) for carrying out the method comprises a core (7) of insulating material which is on both faces covered by a cover (8). Along the side edges (4) of the core there is provided a recess (6) which is equal to the shape of half a post or a projection on a corner post. The wall sections are mounted between the posts and a wall is built which can furthermore be provided with windows and doors that are merely provided with a recess (6) equal to the recess made in the side edges (4) of the core (7). <IMAGE>
Patent GB-2085946-A (GB)
Title: Locking manhole covers and gully grids
IPC: E05C19/06
Filed: 1980-10-17
Abstract: A road surface gully grid or manhole cover 1 is locked within its supporting frame 2 by a resilient bendable strip 3 which is anchored at one end 4-6 to the underside of the cover and whose free end 12 protrudes through a wide slot 10 into a recess 11 of the frame. The lock is released by inserting a key through hole 7 and turning it to bend the strip 3 in a plane parallel to that of the cover, whereupon the strip end 12 is withdrawn as it swings to the other end of slot 10 (Fig. 1 not shown). <IMAGE>
Patent GB-2093085-A (GB)
Title: Sealed panel joint
IPC: E04B1/61
Filed: 1981-02-16
Abstract: A fastener (30) comprises a longitudinally extending support intended to be secured to a panel (36). A base portion (32) forms part of the support, and a web portion (39) extends perpendicularly to the base portion and is provided with a flange (38) having an enlarged end portion (42). The flange portion, the web portion and the base portion forms an open slot extending longitudinally of the fastener the dimensions of which will receive the flange member (42a) of a similar fastener. The enlarged end portions of the two fasteners provide an interlocking action, and this is assisted, and a weatherproof seal provided, by a longitudinally- extending resilient bead (45) which is formed on one surface of the flange portion (38). The panels may have metal cladding and an insulating core. <IMAGE>
Patent GB-2070491-A (GB)
Title: Improvements in or relating to burning machines
IPC: B23Q11/10
Filed: 1981-02-26
Abstract: A workpiece supporting assembly for a burning machine comprises a support structure 18 and a grid-like burning platform 10 removably mounted on the support structure. The platform, carrying a cut workpiece, may be lifted off by e.g. a crane. Alternatively, the burning platform 10, together with the workpiece, is removed from the support structure 18 horizontally e.g. by wheels running on track 20 or by hydraulic rams; the first platform is then replaced by a second platform 24 on which a new workpiece has been loaded while the first platform was on the support structure. The arrangement permits substantially continuous use of the burning machine. <IMAGE>
Patent GB-2078213-A (GB)
Title: Forming Uniform Multiconstituent Coatings on Glass
IPC: C03C17/25
Filed: 1981-06-17
Abstract: In a method of forming a uniform coating 5 of at least two constituents on a hot vitreous support 4, at least one coating constituent precursor is sprayed separately from the other precursor(s), the separately sprayed precursors being sprayed over substantially co-extensive areas of the support 4 to form the uniform coating 5 and at least one of them being sprayed in aqueous solution.   The formed coating may comprise (a) tin oxide doped with fluoride, iron oxide or antimony oxide; or (b) indium oxide doped with tin oxide. Specified coating precursors are SnCl2, tin dibutyl diacetate, NH4F. HF, FeCl3, SbCl3, indium chloride. Specified solvents are water, methanol, aqueous methanol, and DMF. <IMAGE>
Patent GB-2083602-A (GB)
Title: An apparatus for the disposal of a hot exhaust gas
IPC: E04H12/28
Filed: 1981-06-23
Abstract: A smoke stack comprising a vertical metal tube (11); a ceramic fibre insulation layer (30) on and against the inside of the tube; and a vitreous material layer (32) on the ceramic fibre insulation layer, with the ceramic fibre insulation layer and the vitreous material layer being supported in place by means such as a stud/ferrule arrangement (50/52) to allow temperature-induced dimensional change in the layers. A glazed layer (37) may be placed on the vitreous material layer. The ceramic fibre insulation layer may be in the form of a blanket. <IMAGE>
Patent GB-2101641-A (GB)
Title: Weaving loom
Inventor: GRIFFITH JOHN DALTON
IPC: D03D47/44
Filed: 1981-07-15
Abstract: A rapier loom has a catch needle 12 for knitting the weft yarn 32 or a catch thread, the catch needle 12 including a shaped terminal end hook 16 which, when the needle is moved in one axial direction, picks up the weft and draws it through a loop and then releases the drawn thread onto its shank when moved in the opposite axial direction, obviating the need for a latch on the needle. <IMAGE>
Patent GB-2081141-A (GB)
Title: Method of Fabricating a Metal Wire Shelving Unit
IPC: B21F45/00
Filed: 1981-08-17
Abstract: A wire shelving unit is fabricated by arranging two straight side frame wires (20, 21) in spaced apart relation, and arranging a straight cross wire (22) perpendicular to and intersecting the side frame wires. A plurality of straight parallel shelf wires (23) are positioned between and parallel to the side frame wires and perpendicular to and intersecting the cross wire. All the wires, while still straight, are permanently fastened together at their points of intersection, such as by welding. Thereafter, the cross wire is bent, preferably through 90 DEG , between each side frame wire and the shelf wire closest to it, so as to define side frames (30) of the shelving unit. The shelf wires are bent, preferably through 90 DEG , at points between their ends to define a shelf between the two side frames. All the wire bends may be performed simultaneously. Two or more cross wires (22) may be employed, each carrying a group of shelf wires (23), each group of shelf wires defining a different shelf of the shelving unit. <IMAGE>