baber/WOPTO huggingface dataset:
Patent GB-2125209-A (GB)
Title: Mercury dispenser for electric discharge lamps
Inventor: ELPHINSTONE KEITH
IPC: H01J61/28
Filed: 1983-07-25
Abstract: A mercury dispenser 55 for an electric discharge lamp, e.g. a tubular fluorescent lamp, comprises two metallic walls shaped and sealed together. One of the walls is formed with dimples or depressions filled with mercury or a mercury-containing intermetallic compound before the other wall is sealed over it. One of the walls is the cathode disintegration shield 10 itself while the other is either a discrete metallic "patch" member welded to the shield or is formed from the shield itself by cutting, bending over and welding. Either one of the walls is perforated and the perforation is sealed by fusible non-metallic material e.g. glass 64, whereby in use on heating the dispenser 55 the glass softens and permits mercury 65 to escape from the dispenser through the perforation 62. <IMAGE>
Patent GB-2135508-A (GB)
Title: Indirectly-heated PTC devices
Inventor: DOLJACK FRANK ANTHONY
IPC: H05B3/34
Filed: 1983-10-17
Abstract: A conductive-polymer PTC device 14 is thermally and mechanically coupled to a carbon-based heating resistor 15, e.g. by a metal strap 16. <IMAGE>
Patent GB-2151510-A (GB)
Title: Method of magnetic filtering
Inventor: WATSON DR JAMES HENRY PETER
IPC: G21F9/02
Filed: 1983-12-22
Abstract: Particles of at least one paramagnetic material are filtered from a fluid by passing the fluid through a filter of permanently magnetised magnetically hard ferromagnetic material in a divided form which generates magnetic field gradients adjacent surfaces of ferromagnetic material. Subsequently the filter is regenerated for re-use by eluting substantially all the captured particles by the use of fluid or a series of fluids which has a magnetic susceptibility equal or close to that of the captured particles, or each kind of captured particle. In this way the use of a heavy magnet either to magnetise the filter during the filtering or to de-magnetise it for eluting is avoided. Applications of the invention include the filtering of air circulated through a glove box in the nuclear industry, separation of asbestos particles from aqueous effluent and detection of malaria by filtering parasitised cells from a blood sample.
Patent GB-2157994-A (GB)
Title: Cleaning the shroud/tip gap of a robot welder
Inventor: OWERS TERENCE
IPC: B23K9/32
Filed: 1984-05-05
Abstract: An annular cutting tool 20 is introduced into the gap and rotated to remove any deposit on the sides of the gap is the passage for inert gas which shields the weld area during welding, and it is important that the gap be unobstructed. The cutting tool 20 should be of a type which will cut an annular slot in a blank workpiece. <IMAGE>
Patent GB-2156176-A (GB)
Title: Overload protector
Inventor: POLISCHUK ANDREY
IPC: G01S7/03
Filed: 1984-07-12
Abstract: An overload protector, using a power-dissipating element 26, Fig 2 for receiving and dissipating excessive radio-frequency power, can safely transfer a signal from an input to an output. The protector also has a detector 30-39 Fig 2 coupled to the input for providing a bias current in response to an input signal in excess of a predetermined magnitude. Also included is a diverter 50, 54 coupled to the input, the output, the power-dissipating element and the detector. This diverter can receive the bias current and can, in response, redirect power at the input from the output to the power-dissipating element. The diverter may comprise PIN diodes 50, 54 or transistors, limiting diodes 44, 46 may provide further protection. <IMAGE>
Patent GB-2143792-A (GB)
Title: Scraper or cleaning conveyor belts
Inventor: THORNEYCROFT CHRISTOPHER MICHA
IPC: A01K1/01
Filed: 1984-07-16
Abstract: For removing unwanted material from a conveyor belt, normally, a fixed scraper bar is provided in contact with the belt, but has the problem of requiring constant monitoring and frequent adjustment to compensate for uneven wear across its length, and the added disadvantage of suffering damage when contacted by e.g. belt fastening clips, as they pass across the scraper. The object of the invention is to avoid these disadvantages, and is met by a construction comprising a carrier member 2, a number of individual scraper blades 6 located in side-by-side relationship on the carrier member, each scraper blade being mounted on the carrier such that it can move relative to the carrier and there being spring means to urge each individual scraper blade, outwardly of the carrier. <IMAGE>
Patent GB-2145843-A (GB)
Title: Photographic distortion apparatus
Inventor: STRINGER BRYAN
IPC: G03B27/10
Filed: 1984-07-25
Abstract: Photographic distortion apparatus including a lower film support member 3 having a substantially flat surface and mounted for reciprocating linear movement in predetermined directions 33 parallel to said flat surface, a transparent upper film support member 14 located above the lower support member and having a substantially flat surface parallel to the flat surface on the first member and mounted for recipocating linear movement in predetermined directions 40 parallel to its flat surface and normal to the direction of movement of the first member, and means for driving said first and second support members to cause said movement and means for simultaneously varying the stroke of each member. The support surfaces are constrained to move linearly and are engaged by an adjustable rotating cam. A photosensitive film is placed on one support and an original placed on the other. The supports are reciprocated during exposure to provide a line around the image. <IMAGE>
Patent GB-2144759-A (GB)
Title: Absorbent structures comprising vegetable absorbent material and disposable diapers incorporating such structures
Inventor: RICH THOMAS FLOYD
IPC: D21H17/24
Filed: 1984-08-03
Abstract: Absorbent structures comprise from 1% to 99% of a vegetable-derived pectin-containing absorbent material and from 1% to 99% of a conventional absorbent material. The material contains 15-60% of pectin, of which less than 50% is in the form of a divalent metal salt; 15-80% of cellulose, hemicellulose, lignin or mixtures thereof, and 1-99% of conventional absorbent material. In addition, chloroform soluble lipids (up to 4%), and non lipid material (up to 35%) may also be included.
Patent GB-2165288-A (GB)
Title: Door
Inventor: ANDRAWOS EMILE
IPC: E06B7/30
Filed: 1984-10-05
Abstract: A door has an aperture covered by an insect screen and a sliding panel fitted to the in-side of the door.
Patent GB-2166993-A (GB)
Title: Apparatus for maintaining a gaseous atmosphere about a heat treatment zone
Inventor: MCGLONE JOHN CONN
IPC: B23K9/32
Filed: 1984-11-14
Abstract: For maintaining an inert atmosphere about a heat treatment zone, such as during welding of pipes, the zone is encompassed by a chamber having access ports for work units and inert atmosphere is introduced into the chamber. Apparatus is portable serving as an effective on-site welding aid. <IMAGE>
Patent GB-2149889-A (GB)
Title: A combination check and relief valve
Inventor: TURKO JOHN D
IPC: F15B11/00
Filed: 1984-12-22
Abstract: A combination check and relief valve, usable in the pump control and relief valve assembly described in British Patent Specification No 2105004, comprises an elongate cylindrical housing 45. The housing extends through an outlet chamber 15 and a work chamber 14. A spring loaded check valve member 47 is axially movable in the end of the housing to abut and close an inlet port 20a of the work chamber 14 to an inlet chamber 13. An axial passage 31 extends through the housing communicating from the work chamber 14 to the outlet chamber 15 and is normally closed by a spring loaded relief valve 34, the loading on which may optionally be varied by a screw 51. The relief valve 34 will open if the fluid pressure in the work chamber 14 exceeds a pre-selected pressure, the fluid discharging into chamber 15. <IMAGE>
Patent GB-2152792-A (GB)
Title: Rotary mower attachment
Inventor: MARTIN LESTER GRAHAM
IPC: A01D42/02
Filed: 1985-01-18
Abstract: A scarifying and raking attachment for a rotary mower has an elongate blade (1) with a single tine (10) mounted at one end thereof. The centre of the blade is formed with blade mounting means (7, 23) such that the blade may be accommodated on and secured to rotate with any selected one of a plurality of different rotary mower drive shafts. <IMAGE>
Patent GB-2156493-A (GB)
Title: One-way liquid flow control valves and sprayer attachment with anti-siphon valve
Inventor: CHAP JOHN P
IPC: F16K15/06
Filed: 1985-03-25
Abstract: An antisiphon valve (18) includes a one-piece valve body (20) and a one-piece reciprocable valve member (22). The valve member is guided for reciprocal motion by a support sleeve (28). In its open position the valve member is retained by a retaining barb (38), and when the water flow is reversed a conical valve plug (32) becomes seated upon corresponding seat, thus preventing siphoning. The valve may be used in a flexible base sprayer attachment for use with a domestic tap. <IMAGE>
Patent GB-2159411-A (GB)
Title: Cure of locomotorial disease in horses
Inventor: HAMADA TORU
IPC: A61K33/00
Filed: 1985-05-21
Abstract: A patch containing germanium is applied to an affected part or a vital point of a horse's body to cure or prevent locomotiral diseases.
Patent GB-2159570-A (GB)
Title: Fastening device
Inventor: MARTIN MARTIN JUAN-JOSE
IPC: E05B67/36
Filed: 1985-05-28
Abstract: The device is formed of two main parts, a first part (1) comprising a head (4) from one side of which extends a cylindrical rod (20) with an annular groove (3) adjacent its free end, and a second part (2) comprising a head (8) from one side of which extends a cylindrical spigot (7) provided with a blind axial bore to receive the rod (20). The head (8) of the second part (2) has a radial hole (10) therein, the hole (10) communicating with the bore and receiving a key-operated lock (11). A blocking member (17) of the lock can be actuated to engage in the groove (3) thereby securely locking the two parts (1,2) together. As the two parts are linearly coupled and can turn relative to one another, the closure device is safe against any attempt to force the parts (1,2) apart. <IMAGE>
Patent GB-2176684-A (GB)
Title: Tractor drawn mowing apparatus
Inventor: BARKER MALCOLM
IPC: A01D34/66
Filed: 1985-06-25
Abstract: A crop mowing apparatus wherein one or more mowing units (10, 11) are mounted in a generally side-by-side relation on an elongate frame or support (12) which extends in a direction which is transverse to the intended direction of traverse of the apparatus over a crop which is to be cut and wherein one or more further mowing units (21) are mounted on a further elongate frame or support (17) which is adapted at one end (19) to be connected to a tractor and which is pivotally connected at its other end (18) to one end of said first mentioned elongate frame or support (12), the or each further mowing unit being slidable along said further elongate frame or support (17) and being connected by means of a link (23) to the first elongate frame or support (12) whereby pivotal movement of said two frames or supports (12, 17) relative to each other will result in said further mowing unit or units (21) sliding along the further frame or support (17) to effect a variation in the relative configuration of the mowing units and corresponding adjustment in the overall width of the apparatus. <IMAGE>
Patent GB-2176728-A (GB)
Title: Extrusion apparatus
Inventor: PARDOE JOHN ALAN
IPC: B21C29/00
Filed: 1985-08-19
Abstract: Extrusion apparatus for the continuous forming of hollow section material has a die orifice 16 for the extrusion therethrough of the material, and a mandrel 29 located in the orifice 16. The mandrel 29 has at least one relatively small hole 40 therethrough from end to end, so that the material is initially extruded through the hole 40 and heats the mandrel 29, thereby heating the adjacent material which consequently flows more readily through the die orifice 16. <IMAGE>
Patent GB-2166645-A (GB)
Title: Water inflow control in an appliance operable with water
Inventor: STICKEL ERNST
IPC: A47L15/42
Filed: 1985-10-31
Abstract: A household appliance, such as a dishwashing machine (1), has an inlet hose (9) which is connected by way of a machine-controlled electromagnetic inlet valve (12) to a mains stop cock (4), the valve being controllable by a program control device of the machine. A mechanically actuable stop valve (13) is arranged in series with the inlet valve (12) at the stop cock (4) and is held in an open rest state by a permanent magnet, a spring or the like. The stop valve (13) is closable by a pressure element which is connected by way of a duct (19) to a water level responsive pressure generating chamber (21) of the machine, of a level-regulating vessel (22). The inlet hose (9) opens free of valve means into an inlet (10) of the machine, and may be surrounded by a leakage water hose 23 leading to a collecting trough 17. A float 18 may be provided which is actuable by leakage water to open switch 16, thus closing inlet valve 12. <IMAGE>
Patent GB-2167533-A (GB)
Title: Stabilizing valve
Inventor: OSWALD PETER DAVID
IPC: B67D1/12
Filed: 1985-11-04
Abstract: In drink dispensing arrangements, for beer etc. in a public house it is desirable to ensure that as the drink is dispensed from the container unwanted influences such as airborne bacteria etc cannot enter the container. To effect this a stabilizing valve is fitted. This has a diaphragm (2) coupled to a piston valve (4) mounted in a pipe to a supply of an inert gas, usually carbon dioxide. The lower chamber of the valve extends to the cask. As the drink is drawn from the cask the diaphragm (2) moves downwards which causes the piston valve (4) to open. Gas passes through a port (6) through a centre tunnel in the valve spindle into the lower chamber. This continues until the pressure has equalized, when the diaphragm returns to rest and closes the valve. An inert gas blanket is provided and maintained over the remaining liquid. <IMAGE>
Patent GB-2183956-A (GB)
Title: Laser doppler velocimeter
Inventor: LAMMING RICHARD IAN
IPC: G01S17/58
Filed: 1985-11-25
Abstract: A velocimeter comprises a laser diode (10) driven to provide an output beam of sinusoidally varying frequency. The output beam is directed into one port (21) of a four port single mode optical fibre coupler (20). The output beam forms a probe beam (22) which is directed onto a moving surface (5) and a reference beam (23). The reference beam is formed by a portion of the beam which is reflected at the interface (26) with a graded index lens (25) which terminates an output port (22) of the coupler (20). Light backscattered from the moving surface (5) along the direction of the probe beam is recombined with the reference beam (23) at a photodetector (30). The output from the photodetector (30) is demodulated using a sinusoidally-varying signal to give a signal indicative of the speed of movement of the moving surface (5). Feedback control of the laser diode drive is also provided. The invention may be applied to measuring vibrations. <IMAGE>
Patent GB-2178387-A (GB)
Title: Hand-operable boat propelling unit
Inventor: HAWTHORNE WILLIAM MCMULLAN
IPC: B63H1/32
Filed: 1986-07-02
Abstract: Hand-operable means, for propelling e.g. a small cabin cruiser, comprising a handle portion 11 connected to a blade portion 14 by a hinge 15 or hinge-action flexible connection in such a way that the blade portion folds backwards in relation to the handle portion on the power stroke whilst being free to fold in the opposite sense on the idle stroke when each said stroke is executed as a substantially axial thrust of the handle. A flexible cord 16 restricts the amount by which the blade folds towards the handle during the power stroke; and holds the blade rigidly in its attitude relative to the handle during the power stroke. <IMAGE>
Patent GB-2350740-A (GB)
Title: Radar apparatus
Inventor: BEASLEY PATRICK DAVID LAWRENCE
IPC: G01S13/34
Filed: 1986-07-23
Abstract: A radar apparatus comprises a transmitter section 1 and a receiver section 2 which are enabled and disabled alternately in antiphase by means of controllable switches 6, 24 in order to prevent direct breakthrough from the transmitter section into the receiver section. This process creates "blind" ranges for which the instants of reception of the received signal coincide exactly with instants during which the receiver section is disabled. In order to provide a reasonably flat sensitivity-versus-range characteristic between these ranges the switches are controlled by the output of a pseudo-random signal generator 34.
Patent GB-2181075-A (GB)
Title: Conveying and cutting assembly for load-carrying vehicles
Inventor: RAUCH HANS
IPC: A01D90/04
Filed: 1986-09-03
Abstract: In a load-carrying agricultural vehicle having a conveying and cutting assembly and a conveyor passage 16 which leads upwardly, cutter blades 13 are arranged at the upper end of the conveyor passage. Preferably, neither the cutter blades nor the conveyor assembly which co- operates therewith are enclosed by a fixed housing wall. In accordance with the preferred embodiment shown, the conveyor passage is formed by conveyor drums which are arranged in two rows, of which drums 2 are driven, and drums 3 may or may not be driven, and the conveyed material, e.g. hay, straw or grass, is urged by rotating tines 9 towards stationary blades 13. <IMAGE>
Patent GB-2183851-A (GB)
Title: A method and apparatus for measuring the pore size for manufacturing enhanced tubes
Inventor: ZOHLER STEVEN RANDALL
IPC: B21C37/20
Filed: 1986-12-02
Abstract: Pore size measurement apparatus 40 includes a test pressure housing 42 that is sealingly engagable around a portion of the surface of the enhanced tube 30, so that pressurised fluid flows into the housing 42 and then through the pores 34 and subsurface channels 35 on the tube and then to the outside of the housing. The pressure drop measured by inlet and outlet gauges 37, 39 connected to the housing enables the pressure lost across the pores and subsurface channels and hence the average pore size to be determined. In one embodiment air is fed into two parallel legs of a circuit. The first leg has a variable flow control valve in series with a reference fixture having a fixed orifice therein. The other leg has a variable flow control valve in series with a test pressure housing matingly engaged with the enhanced tube to be measured. A differential pressure transducer measures the difference between the air pressure drop across the enhanced tube and the air pressure drop across the reference orifice plate. Therefore, any changes in the pressure, temperature, or humidity of the supply air will affect both legs in the same manner, so the reading of the transducer will not be affected by changes in supply air. The pressure signal indicative of the pore size on the external surface of the enhanced evaporator tube is supplied to a microcomputer system which processes the signal indicative of the pore size and compares the signal to a predetermined pore size signal to determine when the pore size is within a selected tolerance. The microcomputer generates a control signal to adjust the enhancing process for the next tube if the microcomputer system determines that the pore size of the manufactured tube is different than the selected pore size. <IMAGE>
Patent GB-2200184-A (GB)
Title: Drainpipe
Inventor: LAYTON DAVID EDWARD
IPC: E04D13/08
Filed: 1987-01-20
Abstract: A drainpipe comprising a channel section body (2) and a snap-fitting cover (3) with apertures in the body to receive fastening means (9) to secure the body to a wall (1). Grommets (10) can be provided in the apertures. Snap-fitting may be obtained by projections (5). The radius of the edge (7) of the cover (3) may be slightly less than that of the edge (7) of the body (2) to enhance grip of the cover. The cover (3) is removable so that leaves and other debris can be removed from the pipe. <IMAGE>
Patent GB-2190409-A (GB)
Title: Barrier of particle board and vermiculite containing layer
Inventor: CLARK MICHAEL JAMES
IPC: E04B1/86
Filed: 1987-05-12
Abstract: An acoustic barrier is described which comprises cement-bonded particle board 2 sprayed or otherwise coated on at least one side with a layer 3 of acoustic material comprising cement or plaster containing vermiculite. The preferred barrier has a layer of said acoustic material on one side and a layer 4 of foamed or fibrous insulating material on the other side. The latter material may be sound and/or heating insulating. The acoustic barrier may be in the form of a lining to a wall, ceiling or the like, in the form of an acoustic door or in the form of a free-standing acoustic barrier. <IMAGE>
Patent GB-2205995-A (GB)
Title: Automatic aerial matching circuit
Inventor: LOREK CHRISTOPHER
IPC: H03H11/30
Filed: 1987-06-17
Abstract: A circuit for matching the reactance of an aerial (2) to the output (4) of an r.f. source (3) is in the form of a feed-forward system. An analog r.f. bridge (6) detects the phase difference between signal voltages and the corresponding signal currents in the aerial feeder. Successive ranges of values of the analog output signal of the bridge are converted to respective switching signals by means of a processing circuit (13) and these are used to switch reactive elements included in a controllable reactance circuit (5) into and out of circuit. <IMAGE>
Patent GB-2193367-A (GB)
Title: Display assembly
Inventor: BURDON KENNETH
IPC: G09F15/00
Filed: 1987-06-23
Abstract: A self supporting, dismantleable display assembly comprises a base portion 10, a top portion 41 and display panels 14, 15, 16, 17, 18 19, 30, 31, 32, 33, 34, 35 extending between the base and top portions. The base and top portions are tubular and polygonal and locating plates (13), 40 are provided for holding the display panels by means of pins 20, 43 such that free edges of the panels engage within the tubular base and top portions at corners formed at meeting faces of the base and top portions. The display panels may be in 'X' or chevron configuration, Figs 1 & 4 (not shown). <IMAGE>
Patent GB-2224153-A (GB)
Title: Matrix display devices
Inventor: SHANNON JOHN MARTIN
IPC: G09G3/36
Filed: 1988-10-21
Abstract: In a matrix display having an electro-optical display element e.g. LCD, connected in series with a non-linear device at each matrix point between associated row and column conductors 14, 15, the overall number of conductors is reduced by arranging the picture elements into groups of at least two elements 12 with the associated non-linear devices 11 connected in series between a row or a column conductor and one of the elements 12 with intermediate connections to the other elements and by arranging the selection signal provided by the driving means 20 to have different and predetermined levels corresponding to the number of elements in a group. The non-linear devices 11 connected to a row are progressively turned off one by one by the selection signal after the data supplied via a switching circuit 30 are loaded into the related picture elements. A group may be formed from picture elements in one or more rows or columns, and each group may be connected via a separate string of non-linear devices to adjacent rows. The non-linear devices may be diode rings, MIMs or back to back diodes. <IMAGE>
Patent GB-2224931-A (GB)
Title: An umbrella handle and light assembly
Inventor: TSO KWOK CHUEN
IPC: A45B3/04
Filed: 1988-11-07
Abstract: An umbrella handle 10 comprises a first casing 14 for engaging the lower end of the centre pole 12 of an umbrella, a second casing 16 connected to the first casing 14, a light bulb assembly 32 to 38, received in the second casing 16 and a compartment 22 for accommodating a power supply unit 24. The compartment 22 is suitably located in the first casing 14. The casings 14 and 16 may be formed integrally at an angle to one another, so that light from the light bulb assembly illuminates the way of the user when he holds the umbrella in the customary use position. <IMAGE>