baber/WOPTO huggingface dataset:
Patent GB-2069406-A (GB)
Title: Mounting of a keyhole-saw blade
IPC: B23D51/10
Filed: 1981-02-04
Abstract: The blade 5 is clamped to the end 9 of the reciprocating shaft by a rotatable sleeve 14 provided with a clamping disc 15 having a recess 24 in which a clamping jaw 28 is accommodated when the sleeve is rotated to a position for removing a blade. An auxiliary groove 11 is provided in the end of the shaft 9 to facilitate removal of broken-off saw blade ends 6. The sleeve (14) is made of metal or plastics with the disc 15 being moulded therein so that the disc is rigidly secured to the sleeve. <IMAGE>
Patent GB-2196674-A (GB)
Title: Transportable bridges
Inventor: PARRAMORE THOMAS STUART
IPC: E01D15/127
Filed: 1981-02-27
Abstract: A bridge span consisting of a series of end-to-end engageable bridge modules (1) can be launched across a gap from a launch vehicle (21) with the aid of an overhead launch rail (20) consisting of a series of end-to-end inter-engageable launch rail modules (22), the rail having been previously cantilevered out across the gap from the vehicle. The launch rail carries a cable-driven trolley (39) beneath which the leading end of the bridge span is slung, after the leading end of the rail has been located upon the far bank, and the span than winched out so as to bridge the gap. <IMAGE>
Patent GB-2097671-A (GB)
Title: Live virus cultural vaccine against contagious ecthyma and method for preparing same
IPC: A61K39/275
Filed: 1981-04-30
Abstract: The vaccine contains an attenuated strain L-1 of the virus of contagious ecthyma prepared from a "wild" virus isolated from injured skin regions of a lamb naturally suffering from contagious ecthyma and adapted by way of numerous culturings on a primary culture of cells of skin of 3 to 3.5 month sheep fetus. The method for preparing the vaccine preferably comprises culturing said strain L-1 on a culture of cells of skin of a 3 to 3.5 months sheep fetus in a supporting medium. The first collection of the virus-containing material is carried out after 50 to 70% of the culture cells have been affected. The virus strain L-1 is also claimed per se.
Patent GB-2073362-A (GB)
Title: Hose and method of manufacture thereof
IPC: F16L11/10
Filed: 1980-09-01
Abstract: A hose comprising an internal supporting tube (1) made of an elastic material and spirally winded around with a profiled band (2). The said band (2) has in its cross-section a profile which is made of two quadrangular flanges (3) and (4) conjugating in steps with each other and each a height equal to half height of the profile. The neighbouring loops of the band (2) are partially overlapping each other so that the upper flange (3) of one loop is placed on the lower flange (4) of the other, whereas the butt-ends of the flanges (3) and (4) are facing each other The reinforcing carcass constituted by the band (2) is covered with an interlayer (5) made of an elastic material. Over the said interlayer (5) is laid at least one pair of reinforcing layers (6) and (7) constituted by families of interparallel reinforcing cords (8) and (9) wound in opposite directions at angles over the range of 0 to 20` to the axis of the hose. Over the pair of reinforcing layers (8) and (9) is placed an external protecting envelope (10) made of an elastic material. A method of making a modification of the hose, where it has an interlayer (5) with a spiral thickening (15), provides for coating the internal supporting tube (1) with the profiled band (2) preliminarily bent into a spiral. The said band (2) is then fixed to the supporting tube (1) and the supporting tube (1) is extended along its axis. The reinforcing carcass, constituted by the band (2), is then covered with the interlayer (5) made of an elastic material, the latter being fixed to the band (2). Finally the reinforcing layers (6) and (7) are wound, the external protecting envelope (10) is laid and the tensile force is released from the supporting tube (1).
Patent GB-2115851-A (GB)
Title: Cavity wall tie
Inventor: ADAM IAN ROSS
IPC: E04G23/02
Filed: 1981-11-19
Abstract: The leaves 2,3 of a cavity wall are tied by a stainless-steel tie-rod 1 inserted between the leaves, via bore 5,4 drilled therein, and secured thereto subsequently to the building of the wall in order, for example, to replace corroded existing wall ties. The ends of the tie rod are resin grouted into the wall leaves, the resin grout being injected into the bore by pumping from outside of the wall. Stop members 10,11 on the tie rod prevent passage of the resin grout into the cavity prior to hardening thereof and centralise the rod in the bores. A drip member 13 is arranged on the tie rod between the stop members. Such resin grouting fixing is required in low grade soft concrete where mechanical fixing does not provide a strong enough fix. In certain applications a resin grout fix is only necessary at one tie end, the other end having a conventional mechanical fix. <IMAGE>
Patent GB-2091331-A (GB)
Title: Hydraulic positioning device for the props of a hydraulic supporting assembly
IPC: E21D23/04
Filed: 1982-01-05
Abstract: A positioning device for props in a hydraulic supporting assembly for public works or mines comprising a base plate 4 and a capping 5 held apart by props 1, 2, 3, comprises at least 2, preferably 3 jack-cam-guide assemblies I, II, III which are independent of one another, each jack 9, 10, 11 is fixed to plate 13 rigidly connected to a base plate 4, the free end of the jack rod or shaft pushes a movable cam 6, 7, 8 having a cam surface in the form of a widened-out U, which cam slides on the plate 13 connected to the base plate 4 along a rectilinear path until the jack 9, 10, 11 comes into mechanical abutment and guides 14, 15, 16 which are symmetrical in relation to the axis of the jack, likewise fixed to the plate 13 rigidly connected to the base 4 and which guide a cam 6, 7, 8. At least two of the jack-cam-guide assemblies act in non-parallel directions. <IMAGE>
Patent GB-2095756-A (GB)
Title: Balancing the heat flow between components associated with a gas turbine engine
IPC: F02C7/16
Filed: 1982-03-05
Abstract: Heat transfer systems for maintaining a thermal balance between a gas turbine engine and heat generating accessory components of the engine are disclosed. In the embodiment illustrated, heat is removed from the cooling system 48 of an electrical generator 46 and is transferred to the fuel supply system 32 of the engine. In one detailed embodiment, the cooling system 48 is in direct heat transfer communication with the downstream portion 62 of the fuel supply system through a heat exchanger 76 and in indirect heat transfer communication with the upstream portion 60 of the fuel supply system through the fuel recirculation system 42. <IMAGE>
Patent GB-2105965-A (GB)
Title: Apparatus for dispensing animal foodstuffs
Inventor: SMITH JOHN FRANCIS
IPC: A01K39/01
Filed: 1982-03-12
Abstract: Apparatus according to the invention comprises an elongate feeding trough 11, a foodstuffs supply member 12 movable along the length of said trough, a dispensing head 26 movable along the length of said trough by said supply member and movable vertically in use relative to said supply member, said supply member in use supplying foodstuffs to said trough through an outlet and said dispensing head, and, a plurality of bearer members 23 fixed to said trough and spaced along the length thereof, said dispensing head running on said bearer members as it traverses the length of the trough whereby said bearer members support the weight of the dispensing head, and the trough through the intermediary of said bearer members determines the vertical position of the dispensing head relative to the supply member, said head having a trailing edge 38 extending transverse to the length of the receiver and determining, by its spacing from the base of the trough, the depth of foodstuffs dispensed. <IMAGE>
Patent GB-2117276-A (GB)
Title: Centrifugal apparatus for cleaning hydraulic system power fluids
Inventor: BRATSLAVSKY KHAIM LAZAREVICH
IPC: B04B5/00
Filed: 1982-03-26
Abstract: The centrifugal apparatus comprises a sleeve 6 carrying a drum 5 enclosed in a shell 7. The sleeve 6 rests upon bearings 3, 4 on a vertical hollow axle 2 made fast on a base 1. Slits 11 are provided in the hollow axle 2 for positively feeding the fluid being cleaned into the drum 5 through ports 12 arranged in the sleeve 6 opposite the slits 11. Non-contact seals 16, 17, 18 are interposed between the axle 2 and the sleeve 6. Chambers 19, 20 for collecting leaking fluid are provided between each of the bearings 3, 4 and the non-contact seals 16, 18 in the direction of flow of the leaking fluid, each of the chambers 19, 20 being communicated, through at least one passage 21, 22, with a chamber bounded by the base 1,the shell 7 and the drum 5. Provision is also made for means 23, 24, 28 adapted to guide and separately discharge the leaking fluid passing from the chambers 19, 20. <IMAGE>
Patent GB-2099728-A (GB)
Title: Recovering tin from cassiterite
IPC: B03B1/04
Filed: 1982-05-07
Abstract: A process of recovering tin from cassiterite comprises partial reduction of the cassiterite to metallic tin in an aqueous medium and formation of coherent aggregates of large particle size which are separated from gangue minerals by methods utilizing changed particle characteristics, e.g. by screening.
Patent GB-2098465-A (GB)
Title: Gas-fired fryer and gas-fired burner suitable therefor
IPC: F23D14/02
Filed: 1982-05-12
Abstract: In a fryer, a conduit (60) extends through a frypot (20) so as to be immersed in a frying oil. Combustion occurs in an inlet portion of the conduit. Products of combustion are exhausted through an outlet portion (64) of the conduit and through serpentine channels (94, 96) along certain walls of the frypot. Insulating panels (100) form outer walls of the channels. In a burner (30) for the fryer, a vortex of air is provided, and a minor portion of gas is ignited before a valve controlling a major portion of gas is opened. Means provide a minimum delay of one to three seconds, when it has been sensed that combustion has been established, before the valve is opened. <IMAGE>
Patent GB-2125412-A (GB)
Title: Masticating agents for rubber
Inventor: SCHUBART RUDIGER
IPC: C08K5/37
Filed: 1982-08-09
Abstract: Compounds corresponding to the following general formula   <IMAGE> in which, where n=1, M represents sodium, potassium, lithium, caesium or rubidium and, where n=2, M represents calcium, strontium or barium, are used as masticating agents for natural and/or synthetic rubber latex.
Patent GB-2129655-A (GB)
Title: Improvements in and relating to radio communications
Inventor: WINN ROGER
IPC: H04K1/00
Filed: 1982-09-08
Abstract: A data telecommunication system is disclosed in which data to be transmitted is fed into an encoding unit 12 and activates a particular one of a plurality of tone generators 14 according to the value of each data unit. The tone generators may, for example, generate tones in the range 330 Hz to 640 Hz spaced at 10 Hz intervals, each tone being generated for a period of 100 milliseconds. The selected tone is fed to a modulator 16 where it is superimposed on an HF carrier and transmitted via an antenna 20. A keystream generator 24 controls a synthesizer 22 to produce a succession of randomly or pseudo-randomly arranged carrier frequencies on which the modulator 16 superimposes the tone frequencies. Each carrier frequency is present for a time period corresponding to the period (100 milliseconds) of each tone frequency. In this way, therefore, the transmitter applies frequency hopping to a multiple frequency shift keying or Piccolo system. The receiver has a demodulator driven by a keystream generator synchronised with the keystream generator 24 so as to reproduce the originally selected tone frequency. The tone frequencies are fed into a bank of tuned filters so as to detect the value of the tone frequency at any time and thus the value of the transmitted data. <IMAGE>
Patent GB-2128744-A (GB)
Title: Flowmeter
Inventor: HOLMES JOHN FREDERICK STANLEY
IPC: G01P5/02
Filed: 1982-10-19
Abstract: A flowmeter has a probe 12 which is placed in the flow to be measured and which deflects by an amount which is related to the flow rate. A strain gauge 26 mounted on the probe 12 responds to the degree of deflection, and the resultant varying voltage from the strain gauge 26 is used to produce a reading of flow rate. The probe may be stiff in one plane and able to deflect in another plane at right angles. Two of these probes 12, 14 can be combined at right angles to produce a meter which will measure flow direction (by a vector combination of the outputs from the two strain gauges) as well as flow rate. <IMAGE>
Patent GB-2113118-A (GB)
Title: A coated metal container and a method of making the container
Inventor: CARBO ADELAIDA L
IPC: B65D25/14
Filed: 1982-12-21
Abstract: A metal container has a seamless body with an integral bottom, formed by drawing and redrawing. At least the inside surface of the body has a resin undercoat and a top coat thereon, the latter being a reaction product of a citric acid ester and a heat-curable resin selected from epoxy, acrylic, polyester and vinyl resins, save that vinyl resins are not used if the undercoat is a thermoset epoxy resin. In making the container, blanks are cut from tinplate or tin-free steel, the undercoat is applied and cured and then the citric acid ester is applied as a lubricant for the drawing process. The top coat is applied without first removing the lubricant.
Patent GB-2133783-A (GB)
Title: Oxidising compositions
Inventor: TOWLER PETER JAMES
IPC: C23C22/63
Filed: 1983-01-15
Abstract: Simple compositions for oxidising the surface of the copper tracks on a printed circuit board contain: from 37.3 to 89.5gpl (measured as chlorite, C102) alkali metal chlorite; from 4.5 to 8.5gpl (measured as hydroxide, OH) of alkali metal hydroxide; and from 12.5 to 2.5gpl (measured as phosphate, PO4) of alkali metal phosphate; the total alkalinity of the composition being equivalent to from 15 to 25gpl NaOH (6.5 to 10.5gpl hydroxide, OH).
Patent GB-2136533-A (GB)
Title: Artificial heart valve
Inventor: WAIN WILLIAM HENRY
IPC: A61F2/24
Filed: 1983-02-08
Abstract: A bioprosthetic heart valve suitable for natural aortic, pulmonary, mitral or tricuspid valve replacement. The valve comprises cylindrical valvular tissue 1, for example a porcine valve, and a waisted cylindrical support frame 3 therefor, preferably covered with a biologically compatible material 7, in which the respective cylindrical walls of the valve and frame are substantially coincidentally arranged. Desirably the support frame has at least two integral commissure support loops and is machined from an acetal homo- or co-polymer plastics material. <IMAGE>
Patent GB-2119440-A (GB)
Title: Centrifugal fans
Inventor: CORY WILLIAM THOMAS WORTHINGTO
IPC: F04D27/02
Filed: 1983-03-18
Abstract: The inner edges of the fan blades 7 extend parallel to the impeller axis and the fan incorporates a circular damper plate 11 which is supported coaxially within the array of blades with its edge closely adjacent the inner edges of the blades. The plate is movable in an axial direction so as to vary the useful width of the blades and thereby the flow rate of the fan. An actuator 13 moves the plate 11 via a rod 12 and is operated either manually or in response to a signal from a humidity or temperature sensor 15. <IMAGE>
Patent GB-2144292-A (GB)
Title: Digital video signal reproducing apparatus
Inventor: TAKAHASHI NOBUAKI
IPC: G11B27/10
Filed: 1983-07-22
Abstract: A digital video signal reproducing apparatus comprises a reproducing circuit 116, 117, 119 for reproducing from, for example, a disc 70 a digital video signal having a signal format in which a header signal is added to each of divided picture element data groups which may be a number of adjacent rows or columns, the header signal comprising at least a synchronizing signal and a picture mode identification code. The video sampling rate is chosen so that each picture contains close to but less than 2<18> pixels and the reproduced video signal is written into and subsequently read out from two memories 128, 129 which are controlled according to the detected picture mode identification code. The signal is converted to analogue form for display. A scan conversion circuit 121 may be provided to change the standard of the signal which is preferably recorded as sequential blocks of luminance and two chrominance signals. <IMAGE>
Patent GB-2145164-A (GB)
Title: Buoyancy reciprocating engine
Inventor: LAWSON REGINALD STEPHEN
IPC: F03B17/02
Filed: 1983-08-16
Abstract: An airtight cylindrical piston F, housed in pen A rises due to buoyancy and falls due to gravity when pen A is alternately flooded and emptied by water from reservoir C, by means of timed valves inlet B and outlet D. Outlet valve E is an alternative. Piston F is guided by an arrangement comprising four stanchions K each being fitted with wheels L engaging four U-section plates M fixed vertically to side of piston F. Fixed vertically to piston F is drive shaft H the end of which passes through a collar I housed in overhead framework. Clamped to drive shaft H is cogged driving plate N, for transferring power produced to outside machinery by way of ratchet gear wheels P and O. <IMAGE>
Patent GB-2131061-A (GB)
Title: Block
Inventor: LEE CHANG YURL
IPC: E01C5/06
Filed: 1983-11-04
Abstract: A block (1) for a building or a pavement has a plurality of longitudinal holes (2) and transverse holes (3) extending through the block and communicating with each other at the intersecting points, recesses formed on the underside thereof, and optionally a plurality of holes (5) extending vertically through the block at the solid portions remaining between the intersecting points of the longitudinal and transverse holes (2, 3). <IMAGE>
Patent GB-2150627-A (GB)
Title: Apparatus for providing a warning of a water leak in a water tank
Inventor: LEMON CHARLES WILLIAM HAMILTON
IPC: G01M3/02
Filed: 1983-11-05
Abstract: The apparatus (2) comprises a water tank (4), a tray (6), and an overflow pipe (8) connected to the tray (6). Water discharges from the tray via the pipe (8) provides visual warning of a leak in the tank. The tank may have an overflow (14) discharging into the tray. The tray may extend to half the height of the tank to cope with a sudden burst. The tank may rest in ridges (12) in the tray. A water outlet (18) from the tank may have a valve (20) outside the tray and a flexible hose (22) may absorb differential expansion between tank and tray. <IMAGE>
Patent GB-2130625-A (GB)
Title: Driving tunnels
Inventor: STUCKMANN DIETER
IPC: F16L55/179
Filed: 1983-11-22
Abstract: A knife shield 6 is used for driving a tunnel 5 around and along a buried main drain 1 for use in restoring or repairing the main drain, the main drain having lateral feeder drains 3 leading thereinto. The knife shield 6 has a plurality of elongate knives 8 and 10 arranged side-by-side on a support frame 7. The knife shield 6 is open- bottomed. The knife shield 6 is provided with a connector pipe 22 which can be used as part of an indirect connection between a feeder drain 3 and the main drain 1. The connector pipe 22 is positioned within one of the knives 10 of the knife shield 6, and is movable longitudinally relative to that knife, so that the knife shield can be advanced relative to the connector pipe without breaking the indirect connection between a feeder drain 3 and the main drain 1. <IMAGE>
Patent GB-2150098-A (GB)
Title: Machine for placing electronic components on a substrate
Inventor: CABLE MICHAEL JOHN
IPC: H05K13/00
Filed: 1983-11-24
Abstract: A machine for placing electronic components on a substrate e.g. a printed circuit board, comprises an X-Y table 12 and, preferably, twin placement heads and an adhesive dispenser. Transport means 22,24 is provided by which substrates to be operated upon may be supplied to or removed from a conveyor means mounted on the X-Y table the conveyor means transferring substrates into position at which they are clamped for application of adhesive and placement of components. The transport means 22,24 are pivotable about horizontal axes between feed and idle position in register with the conveyor means on the X-Y table and not, respectively. The arrangement enables the X-Y table to move over its full range of operative positions without fouling by the transport means. <IMAGE>
Patent GB-2139140-A (GB)
Title: Positioning device
Inventor: ALLSOPP REGINALD CHARLES
IPC: B25H7/00
Filed: 1984-01-17
Abstract: A device 10, which comprises a length of thin material having a cross-section matching the profile of a material to be cut, is held in engagement with said material, e.g. channel section 20, and its end 14, which is perpendicular to the longitudinal axis of the device, is used to draw a straight line marking the length of material to fit an intended location, e.g. a window recess. A cutting blade is inserted into a slot 16, which is formed in the device parallel to the edge 14, to cut the material to size, the distance between the edge 14 and the slot 16 being predetermined as the amount of clearance required when the material is mounted in its intended position. <IMAGE>
Patent GB-2135077-A (GB)
Title: Joining optic fibres
Inventor: MYERS DAVID R
IPC: G02B6/38
Filed: 1984-02-07
Abstract: An article suitable for use in the adhesive joining of two optical fibers with low light loss comprises a tubular container (10), the inner surface of which is coated with a release agent (12) and/or is composed of an inherently releasing material.
Patent GB-2154309-A (GB)
Title: Refrigerated vehicles
Inventor: TIDD HECTOR
IPC: B60P3/20
Filed: 1984-02-15
Abstract: A refrigerated vehicle has a plurality of different compartment 32,36 thermally insulated from one another, refrigeration means 30 and a heat conducting path 40,44 leading from each compartment to the refrigeration means, with means in each such path for limiting the heat conducted along the path. <IMAGE>
Patent GB-2151535-A (GB)
Title: Rigid light-weight components
Inventor: MANN RONALD
IPC: B29C70/66
Filed: 1984-02-16
Abstract: A rigid light-weight component is formed by making a core of low density plastics, and then covering this core with a metal coating. The metal coating can provide most, some or none of the strength of the finished component, and a significant part, or all, of the component strength is also derived from the plastics core. The core is formed by mixing glass micro-spheres or micro balloons with a plastics resin. The micro-spheres introduce void areas or cavities into the resin/micro-sphere mixture, to reduce the density of this mixture. The glass walls of the micro-spheres however play a significant role in increasing the strength, particularly the compressive strength of the core. The core can be coated with metal by giving it a conductive film over its surface and then electroplating the component.