baber/WOPTO huggingface dataset:
Patent GB-2035448-A (GB)
Title: Pistons for internal combustion engines
IPC: F02F3/04
Filed: 1978-11-28
Abstract: A piston which utilises a cast-in insert for anchoring a combustion chamber bowl lip insert can have the lip insert secured to the cast-in insert before or after the piston body is cast. A composite insert includes a piston ring carrier 12, a seat member 11 for the lip insert 6, and anchoring limbs (15), Fig. 5 (not shown) for the seat member which extend into a suitably cool region of the piston body. The lip insert 6 can be secured to the seat member 11 by laser, electron beam, friction, or resistance welding or by mechanical jointing or brazing either before the composite insert is introduced into the piston body mould or after casting, in which case the seat member is exposed by machining. Means are provided in the piston mould for correct location of the composite insert in the mould. <IMAGE>
Patent GB-2009435-A (GB)
Title: Production of transfer materials
IPC: G03F7/34
Filed: 1978-12-19
Abstract: Dry transfer materials may be produced by exposure and development with water of a sensitised material in known fashion. The invention relates to particular formulations for the photosensitive layer includes a water-soluble, water-dispersible or water-swellable polymer e.g. a vinyl polymer or cellulose ether an ethylenically unsaturated compound having one or more carbon- carbon double bonds e.g. an acrylic monomer, a carbonyl-group containing compound and usually a dye or pigment, surfactant and an activator or synergist for the carbonyl compound. The expired layer is either intrinsically adhesive to the material to which it is transferred or it may have an adhesive applied thereto. There may be two photosensitive layers one of which is adhesive.
Patent GB-2045227-A (GB)
Title: Manufacture of drinking vessels with non-circular necks and stems
IPC: C03B23/00
Filed: 1979-02-05
Abstract: Before setting, the circular neck between the bowl and base portions of a drinking vessel is pressed into a non-circular shape (e.g. triangular, square or hexagonal), whereafter the neck may be stretched to form a stem (Fig. 6). In Fig. 3, radially inwardly directed pressure is applied to the neck by shaped heads 30' on the inward ends of radially disposed push rods mounted in co-operating squeezing jaws 32, 32' operated by means of tongs 35, 35'. The heads 30' are so shaped as to co-operate to define a non-circular, e.g. hexagonal, cross-section passage 39 to which the neck is forced to conform. <IMAGE>
Patent GB-2014304-A (GB)
Title: Avoiding Drift in Flame Photometers
IPC: G01N21/31
Filed: 1979-02-13
Abstract: A method for sample analysis in flame photometers, which have an electrical feedback loop to maintain the output of the source 1 constant and in which light absorption and emission measurements are made on zero, standard and sample solutions introduced successively into the flame 2 is characterised by the control, loop being automatically interrupted in response to radiation characteristic of components of the solvent, picked up by auxiliary detector 4b outside the optical path, such that the time of interruption is independent of the height and slope of the measured signal. <IMAGE>
Patent GB-2041723-A (GB)
Title: Button
IPC: A44B1/44
Filed: 1979-02-14
Abstract: A button comprises a button face member 1; a support plate 3 having a central hole 4; a hollow button shank 5 having a shoulder 7 extending downward from a constricted neck 6, the neck having a smaller diameter than the central hole 4, the shoulder 7 having a larger diameter than the central hole 4; a bending guide member 8 disposed within the shank and having a slanting surface 9 at its bottom for bending and guiding a fastening member 14; an engaging member 10 having a centre bore 11 extending therethrough and disposed within the shank 5 and under the bending guide member 8. The support plate 3 is loosely fitted around the neck 6 of the shank and retained thereon by forming an enlarged top portion at the upper end of the neck. The button face member 1 is fitted over and secured to the support plate to form a button head which is pivotably supported by the shank. The button is fastened to a fabric or like sheet-like material by the piercing needle 15 of the fastening member 14. <IMAGE>
Patent GB-2013546-A (GB)
Title: Making Rotary Screen Printing Cylinders
IPC: B41C1/14
Filed: 1979-02-26
Abstract: Rotary screen printing cylinders are made by subjecting a cylinder of wire mesh fabric to a rolling operation while it is positioned, preferably under tension, over a mandrel. Such operation is continued until the cylinder has been conformed to the mandrel and the apertures between the wires of the mesh have been reduced to a required size. The rolled cylinder, which will have a relatively smooth interior and exterior surface, may be electro-plated and is finally engraved by any suitable process with the desired pattern of permeable and impermeable areas. The cylinder may be initially formed by bending flat fabric into cylindrical shape and welding together its edges.
Patent GB-2015845-A (GB)
Title: Improvements in or relating to correlation arrangements
IPC: F42C13/04
Filed: 1979-03-01
Abstract: A correlator arrangement for a radar fuse (Fig. 1) in which the outgoing signal is binary phase modulated with a reference code and the incoming echo correlated with the code to pick out the signal. To reduce the effect of Doppler frequency modulation there are means 15-18 to reduce the frequency of signals outside a predetermined frequency range to bring them within that range. <IMAGE>
Patent GB-2045567-A (GB)
Title: A radar system for determining azimuth and elevation
IPC: G01S13/44
Filed: 1979-03-27
Abstract: A radar system is designed so that the beamshape varies with elevation. For example, it may be wider at high elevations than at low elevations. As the system scans in azimuth, a target of relatively low elevation will be scanned by a part of the beam having a relatively narrow beam width and at a high elevation will be scanned by a part of the beam having a relatively broad beamwidth. In an amplitude- comparison monopulse radar, circuitry is included for distinguishing between signals occurring from different beamwidths thereby giving an indication of the elevation of the target from which the signals were derived. Systems are already known which provide similar information by producing two or more beams of different elevation angles and comparing the signals received by the different beams. Such systems are however relatively complicated and expensive. <IMAGE>
Patent GB-2019572-A (GB)
Title: Improvements in housings for indicating means
IPC: G01D11/28
Filed: 1979-04-19
Abstract: A housing for indicating means (8) comprises a cylindrical or prismatic hollow body (1), open at its front end and having a rear wall (6) formed with a tubular appendage (12) extending outwardly therefrom. The tubular appendage (12) houses a light emitting member (15). The housing is formed by a single piece of translucent plastics material. Across the root of the tubular appendage (12) is a thin sealing partition (16) which allows light emitted by the light emitting device to illuminate the interior of the hollow body. <IMAGE>
Patent GB-2049725-A (GB)
Title: Corrosion Resistant Copper Base Alloy for Heat Exchanger Tube
IPC: C22C9/06
Filed: 1979-05-23
Abstract: The single phase alloy consists essentially of copper with alloying ingredients 3 to 7.5% by weight nickel, 0.5 to 4% by weight tin, up to 4% by weight aluminium, and 0.001 to 1.0% by weight manganese. It may in addition contain 0.01-2% each of As, Sb and P. Processing involves homogenising at 500-1050 DEG C, hot working at @400 DEG C, and cold working at <200 DEG C, if necessary with intermediate annealing at 525- 1050 DEG C.
Patent GB-2030445-A (GB)
Title: Device for grilling food
IPC: A47J37/07
Filed: 1979-07-11
Abstract: A device for grilling food, chiefly intended for portable use, comprising a polygonal cross-sectional bowl 1 for receiving the fuel, the bowl having downwardly converging walls, a grill or grid being locatable through the upper open end of the bowl, and a stand 9 for supporting the bowl, the bowl and/or the stand being provided with means 5, 11 for the connection thereof to other bowls or stands respectively so as to provide a plurality of different sized and shaped grilling surface areas in a unitary structure. <IMAGE>
Patent GB-2026275-A (GB)
Title: Regulated deflection circuit with switched regulator
IPC: H04N3/16
Filed: 1979-07-18
Abstract: A horizontal deflection circuit 30 is coupled to a first terminal + of an unregulated source 10 and to capacitor 80 so as to be energized by a regulated voltage established by the difference between the unregulated voltage and the voltage across the capacitor. A deflection switching transistor 32 is serially coupled with an additional controllable switch 62; an inductor 82 is coupled between the junction 100 of the switches and the second terminal of source 10 to provide a controllable path for current flow in the capacitor. The controllable switches 32, 62 are operated at the deflection rate to generate deflection currents and to control the state of charge of the capacitor to maintain a constant regulated voltage e.g. between conductors 18 and 24. Energy represented by periodic discharge of the capacitor is thus recovered. <IMAGE>
Patent GB-2026908-A (GB)
Title: Method of making steering racks
IPC: B21K1/76
Filed: 1979-07-25
Abstract: A method of making racks for rack and pinion steering gears for ground vehicles in which a rack blank is first shaped by machining, forging or other means having teeth which have a form corresponding approximately to the form desired in the finished rack the form of each tooth in the blank corresponds to the finished shape but is generally of greater radius; the total height of the tooth being greater than that of the finished shape and the volume of each tooth is substantially the same as the finished tooth. The teeth are then converted to the finished form by cold forming or coining in a die having a shape which is the exact counterpart of the finished shape.
Patent GB-2027670-A (GB)
Title: Bale Feeding Apparatus
IPC: A01D90/10
Filed: 1979-07-27
Abstract: A hale bale feeder 1 which can be carried or towed has a framework including spaced apart side walls which define a trough T into which a round hay bale can be placed to be supported and rotated by an endless conveyor 21 extending across the trough between the side walls. The endless conveyor has bale engaging spikes 26 which engage with the bale causing it to rotate and at the upper edge of one of the side walls tear off hay from the bale to give a narrow windrow feed out from the apparatus over that side wall. <IMAGE>
Patent GB-2029835-A (GB)
Title: A Novel Highly Thermostable Glucoamylase and Process for its Production
IPC: C09C1/36
Filed: 1979-08-31
Abstract: A glucoamylase enzyme preparation having the property of retaining at least about 90% of its initial activity when held at 70 DEG C for 10 minutes at pH 4.5, and has a measured by a 10-minute reaction on 2% maltodextrin solution at pH 4.5. The glucoamylase enzyme preparation may be recovered from a culture of a microorganism of the genus Talaromyces, preferably T. duponti.
Patent GB-2039440-A (GB)
Title: Extracting a television field synchronizing signal
IPC: H04N5/10
Filed: 1979-11-30
Abstract: A circuit for extracting a field synchronizing signal from a composite television synchronizing signal comprises a mono-stable circuit M and a subsequent series arrangement of four bistable circuits F1, F2, F3 and F4, the first two F1 and F2 being of the D-type and the other two F3 and F4 being of the JK-type. The circuit is provided with three outputs 01,02 and 02 from F1, F2, F4, respectively it being possible to extract synchronizing pulses of a given duration and accuracy from the pulse edge instants in the composite synchronizing signal. This composite signal is applied either via the monostable circuit or direct, as clock pulse signal, reset signal and preparatory signal for the bistable circuits. <IMAGE>
Patent GB-2022948-A (GB)
Title: Receiver channel tuning indicator
IPC: H03J1/00
Filed: 1978-12-18
Abstract: A tuning indicator for a television receiver or the like comprises a hollow cylindrical member (4) axially rotatably mounted on the front panel of the receiver. A loudspeaker is mounted behind the cylindrical member to transmit sound therethrough to the outside. The cylindrical member is operatively connected to the tuning circuit of the receiver and manually rotated to effect tuning. A pointer (20) is provided on the outer periphery of the cylindrical member to indicate correspondence with channel numbers marked on the front panel when the receiver is tuned to a selected channel. <IMAGE>
Patent GB-2041087-A (GB)
Title: Carburettor for an internal combustion engine
IPC: F02M3/12
Filed: 1980-01-16
Abstract: An auxiliary mixture system 18, 19, 23 delivers a fuel air mixture to an outlet 22 in the intake passage 2 downstream of the throttle valve and an idling mixture system 25, 26 also supplies a mixture to the outlet 22. An accelerator pump 7 delivers fuel via a passage 14, 16 to an opening 17 leading into the auxiliary mixture duct 18 and hence to the outlet 22. <IMAGE>
Patent GB-2045881-A (GB)
Title: An anti-skid modulating valves
IPC: B60T8/36
Filed: 1980-03-04
Abstract: A three port, two position valve (18) in a modulating valve unit (22), controls flow between an inlet (32), branch passages (20, 21) leading to the brake cylinders and an outlet (24) leading to the atmosphere. A two port, two position holding valve (17, 19) for each brake cylinder (3, 4) is disposed in each branch passage (20, 21). When the three part two position valve (18) is venting the branch passages (20, 21) to atmosphere, the reduction of pressure takes place more rapidly when one holding valve (17, 19) is open, rather than two. In order to keep the pressure drop as equal as possible in both cases, an actuating device (spool 40) is coupled to a closure member (27) of the three port, two position valve (18) for the purpose of constricting the cross section in the two branch conduits (20, 21) and becomes effective upon the opening of the outlet (24). <IMAGE>
Patent GB-2048430-A (GB)
Title: Device absorbing energy by extrusion
IPC: B60R22/28
Filed: 1980-04-01
Abstract: An energy absorbing device comprises a cylinder 1 containing an extrusion medium 2 and a piston 4 movable in the cylinder to extrude the medium 2 through an orifice 9, and the extrusion medium is a platelet structure particulate solid material chosen from the group graphite and talc. The extrusion may be back-extrusion. The energy absorbing device is relatively insensitive to temperature variations. It may be used to absorb compression or tensile forces. The talc or graphite may be held together by wax or a plastics binder. <IMAGE>
Patent GB-2046315-A (GB)
Title: Shuttleless looms
IPC: D03D47/27
Filed: 1980-04-09
Abstract: A mechanism for driving a weft insertion rod 16 of a shuttleless loom comprises a hollow rod 24 reciprocated by crank-lever mechanism from the sley of the loom, the rod carrying a pinion 42 meshing with a rack 18, fixed to the sley, and with a rack 46 fixed to the insertion rod 16, so that the insertion rod 16 is given double the movement of the rod 24. The rod 16 slides within the rod 24. <IMAGE>
Patent GB-2076019-A (GB)
Title: Erosion-resistant Alloys
IPC: C22C19/00
Filed: 1980-07-29
Abstract: Alloys which are resistant to erosion, particularly iron-based, cobalt-based and nickel-based alloys, contain a sufficient concentration of titanium carbide, typically from 5% to 60% by weight, to achieve the erosion-resistance required. The alloys also have preferred particle size ranges for the titanium carbide, the metal or alloy matrix and any other component, in order to exhibit the desired erosion resistance.
Patent GB-2064294-A (GB)
Title: Additive for smokers tobacco
IPC: A24B15/10
Filed: 1980-10-15
Abstract: An additive for smokers tobacco, by which dangerous substances in tobacco smoke, such as Benzo(a)pyrenes, other polycyclic aromatic hydrocarbons, N-Nitrosamine and carbon monoxide, are reduced, and which consists of carbamide and/or amides of organic acids.
Patent GB-2088783-A (GB)
Title: Floating booms
IPC: E02B15/06
Filed: 1980-11-21
Abstract: A system for collecting oil from the surface of water comprises a perforated hose 15 connected to a source of pressurised gas and connected near to the lower edge of a flexible submerged skirt 14 which serves to guide air bubbles 13 issuing from the perforations to the surface of the water. The skirt 14 is dependent from a buoyancy tube 4 attached to its for upper edge and is maintained submerged by providing a weighting chain or water-filled hose within a pocket 6 provided along the lower edge of the skirt. An upwardly directed fence 9 may be attached to the buoyancy tube 4 to prevent oil from being swept through the barrier of bubbles 13 and over the buoyancy tube by wave motion. Two perforated hoses 15 may be provided one on either side of the skirt 14, such that the bubbles may be produced on the upstream side of the skirt 14 in response to changes in the direction of tidal current 17. <IMAGE>
Patent GB-2088904-A (GB)
Title: Melting sponge iron in the arc furnace
IPC: C21C5/52
Filed: 1980-12-08
Abstract: Reduced iron-base raw material having a reduced iron content of 95-100% with respect to total charge is charged into an electric arc furnace where an iron mass of a bulk density smaller than 0.3 g/cm<3> (e.g. scrap) is charged into the central portion of the furnace. The starting bulk is then melted by application of arc energy to form a molten steel pool at the central portion of the furnace, into which reduced iron is continuously charged together with a slag former such as lime at a rate corresponding to the capacity of the molten steel pool to melt the material.
Patent GB-2068478-A (GB)
Title: Inner ring for a radial rolling bearing
IPC: F16C33/66
Filed: 1981-01-14
Abstract: The invention concerns an inner ring for a rolling bearing provided with a raceway for co-operation with a number of rolling bodies. In order to improve the bearing lubrication properties, the raceway is provided with grooves extending across the raceway with a direction component parallel to the bearing axis.
Patent GB-2071179-A (GB)
Title: Storm porch
IPC: E04B7/00
Filed: 1981-03-10
Abstract: A porch roof comprises a moulded roof of tank-like construction having a base 10 and side and end walls 12, 14, 16 and 18. The base 10 is formed with drainage channels 20, 22 for the collection of rainwater which may be discharged via a downpipe connected to outlet 24 or 26. <IMAGE>
Patent GB-2073862-A (GB)
Title: Heat Actuated Heat Pump and Turbine
IPC: F22B21/26
Filed: 1981-04-10
Abstract: A heating system comprises: (i) a power circuit (A) having a continuous flow path (10) for working fluid, a heater (14) for heating the working fluid at supercritical condition in one part of said circuit, a turbine (16) in the circuit arranged so as to be driven by the working fluid passing around the circuit, a condenser (20) in another part of the circuit for discharging heat from the working fluid, and a feed pump (22) downstream of said condenser to raise the pressure of the working fluid before it is returned to the heater; (ii) a heat pump circuit (B) having a continuous flow path (12) for a respective working fluid, and including an evaporator (24), a condenser (28) and a compressor (26) for the fluid, the compressor being arranged to be driven by said turbine (16), the turbine and compressor being mounted on a common rotor shaft (34) which is supported by gas bearings. A regenerator (18) is arranged to extract part of the sensible heat in the working fluid passing from the turbine (16) to said condenser (20) and transfer it to the working fluid passing from the condenser (20) to the heater (14). The system can provide a directly fired heat pump heating system of improved fuel efficiency, and other cost and operating advantages. The design of the turbine (Figs. 2 and 3) and the heater (Fig. 4) assist in providing these advantages. <IMAGE>
Patent GB-2105628-A (GB)
Title: A powered feed tool
Inventor: FICKLING JOHN EDWARD
IPC: B25B23/145
Filed: 1981-09-17
Abstract: A tapping or screwing-up tool includes a tool holder (16) which is driven in rotation by a pneumatic motor (13) through a torque sensitive clutch (15). Tool holder (16), together with the pneumatic motor (13) and the torque sensitive clutch (15) is moved towards a workpiece by a piston (11) slidable in a cylinder defined by a part of a casing (10). A first valve (50) is operated by the torque sensitive clutch via a push rod (49) when the tool reaches a predetermined torque to shut-off the air supply to the motor or to reverse the motor. A second valve (66) in a connector (58) is operated by the torque sensitive clutch via the push rod (49) and a push rod (65) to connect the cylinder to exhaust so that the tool holder is retracted by a spring (59) when the tool reaches the predetermined torque. <IMAGE>
Patent GB-2084987-A (GB)
Title: Improvements In or Relating to Dental Porcelains
IPC: A61K6/06
Filed: 1981-10-12
Abstract: A porcelain dental restorative having a desired colour on a colour chart is made by mixing selected quantities, given by a respective recipe, of six constituent porcelain powders, the first three having respective red, yellow and blue tinges, the fourth being predominantly white, the fifth grey and the sixth giving a colourless, transparent porcelain, the resulting mixture being formed into the restorative and fired. The restorative core, dentine and enamel layers are made from different mixtures, the core and preferably also the dentine layer including an opacifier and the enamel comprising mainly the sixth powder.
Patent GB-2089362-A (GB)
Title: Additives for use in aqueous solutions in the recovery stage of an oil or gas well fracturing process
IPC: C08B37/14
Filed: 1981-11-26
Abstract: The invention comprises a water soluble additive for a solution to be utilized in the recovery stage of an oil or gas well fracturing process, said additive comprising an ethylcyano derivative of a polygalactomannan. The invention also includes a process for the preparation of such additives comprising reacting a polygalactomannan with aerylonitrile, in the presence of an alkaline catalyst.
Patent GB-2090059-A (GB)
Title: Thermoelectric devices
IPC: F25B21/02
Filed: 1981-12-14
Abstract: In a portable refrigerator which has an insulating wall of foamed-in- place insulating foam 57 between inner and outer shell portions, there being a depression 44 in the outer shell portion which exposes a surface of an internal heat sink 24, and a thermoelectric element 66 disposed in the depression 44 between the surface 30 of the internal heat sink 24 exposed by the depression and an external heat sink 74, there is an annular gasket 76 of resilient and compressible sealing material disposed between the outer shell of the wall and the external heat sink so as to completely surround the depression and the thermoelectric element therein. The gasket is compressed by drawing the two heat sinks towards one another onto the thermoelectric element. A rim 92 extends around but spaced from the external thermal sink 74 of such height that the edge of the rim and the outermost surfaces of the external thermal sink are in a common plane. <IMAGE>
Patent GB-2115577-A (GB)
Title: Programmable controller
Inventor: CLARKE GEOFFREY
IPC: G05B19/04
Filed: 1982-02-27
Abstract: A programmable control system with non-isolated inputs and outputs wherein an input device (PB1) is connected across a main supply (L1, L2) in series with an impedance (R1). A control input signal, derived from the input device (PB1), is fed via a second impedance (R2) to a digital logic system. (R2) is a considerably higher resistance than (R1), e.g. R2 = 10 x R1.