baber/WOPTO huggingface dataset:
Patent GB-2130955-A (GB)
Title: Razor blades
Inventor: CURRY FRANCIS RUSSELL
IPC: B26B21/58
Filed: 1983-11-15
Abstract: A razor blade edge tip has a cross-sectional shape defined, over up to 40  mu m from the extreme edge by the equation w = ad<n>, in which w is the tip chord thickness in  mu m at a distance d from the extreme edge; a is factor of proportionality not greater than 0.8, and n is an exponent having a value in the range 0.65 to 0.75. This results in a tip shape which is relatively thick very close to the edge but whose overall cross-section is narrow, compared with known tip shapes.
Patent GB-2154466-A (GB)
Title: Scrubbing gas stream
Inventor: PANG FUNG CHIN
IPC: B01D47/02
Filed: 1984-01-17
Abstract: An apparatus for scrubbing a gaseous stream, such as hot dusty fumes produced by a stove, furnace or the like, comprises a housing (1) having an inlet (2) for receiving fumes from a first chimney (3) and an outlet pipe (4) for discharging scrubbed fumes into the atmosphere via a second chimney (5). Two staggered arrays of vertical square-section iron tubes (7) are disposed within the housing (1) and water is pumped continuously to the top of each tube (7) whence it is allowed to flow down the outer surface of the tube (7). Fumes entering the housing (1) are forced to follow a circuitous path through the arrays of tubes (7) and dust and the like from the fumes is entrained by the downwardly flowing water. Means are provided for maintaining the level of water in the housing (1) and for draining soiled water therefrom. The water may be recirculated. <IMAGE>
Patent GB-2154416-A (GB)
Title: Access limiting bird feeder
Inventor: CARDEN ROLAND MOLLETT
IPC: A01K39/012
Filed: 1984-02-21
Abstract: The feeder includes means for preventing or deterring undesired, larger birds such as Sparrows from entering the feed area of a food container. The container is suspended above the ground, with openings in its base, offering food specifically to smaller birds, such as Tits. Larger birds being barred from feeding by the existence of projections, e.g. wires, set in a downward direction at such distances apart to allow smaller birds to hover inside them but obstruct the larger by conflicting with their wing beat. The projections may be of differing lengths, the projections also standing off any bird perching on them to an extent where they cannot reach the food openings. <IMAGE>
Patent GB-2136293-A (GB)
Title: Antiinflammatory compositions
Inventor: SELMECZI DR ANDRAS
IPC: A61K31/57
Filed: 1984-03-09
Abstract: Antiinflammatory compositions for veterinary use comprising tylosin or a salt thereof; a corticosteroid of formula (I),   <IMAGE>  wherein     R1 is hydrogen or fluorine,     R2 is hydrogen or hydroxyl, A is hydroxyl or N-methyl-piperazino and    @@ is -CH2-CH2- or -CH=CH-, or a salt thereof; iodochlorooxyquinoline; and ethinyloestradiol, of particular use in the treatment of metritis and colpitis.
Patent GB-2139041-A (GB)
Title: Conversational video system having contact selection control
Inventor: WIGAN JACK GREGORY
IPC: H04M11/08
Filed: 1984-03-29
Abstract: A video conversational data communication network (30) in which subscribers (34, 36) may conduct conversational video textual data communications with one or more keystations (70, 98) in the network (30). Each keystation (70, 98) is associated with a keystation terminal controller interface (68, 96,) which is in turn connected to a message switching node (32) for routing calls throughout the network (30). The keystation controller interface (68, 96) locally stores (304, 308) video conversational textual data for its associated keystations (70, 82, 84, 98, 100) and enables two different designated keystations to conduct two different video conversations with a common keystation in a split screen display (76). The split screen display (76) may also be used to display retrievable data from a data base (50, 52) for simultaneous display (76) along with a video conversation. The video conversational textual data is transmitted between connected keystation controller interfaces (96) in packets which contain less than the total displayable data content of the conversational video textual data message input via the keyboard (72). The keystation controller interface (96, 602) also enables preparation of responses prior to transmission to the other party and while receiving a transmission from that party. Prior to completion of a call, the keystation controller interface (96) provides an incoming calls queue video display (76) at the connected keystations (96). <IMAGE>
Patent GB-2153606-A (GB)
Title: Output current controller for fluorescent lamp ballast
Inventor: HOPE RODNEY CAIRN
IPC: H05B41/04
Filed: 1984-06-25
Abstract: One (46) of the low voltage output windings (42,44,46) of a standard ballast circuit (16) is coupled to one filament (60) of a pair of series connected fluorescent lamps (10 and 12) through a regulating capacitor (62) and a current rectifying diode (64) which are connected in series across such output winding (46) and in parallel to the one filament. <IMAGE>
Patent GB-2165282-A (GB)
Title: Rotatable liner arrangement with tandem cone liner hanger
Inventor: BAKER SAMUEL FRED
IPC: E21B43/10
Filed: 1984-12-12
Abstract: A running string is releasably connected to a liner (L) and liner hanger setting arrangement (H) for lowering into a well bore casing (C) and securing the liner (L) to a casing. The liner hanger setting arrangement includes a first sleeve (S) with upper and lower annular rows (14, 15) of conically shaped segments (14a, 15a) circumferentially spaced thereon. Upper and lower spaced rows (16, 17) of hanger slips (16a, 17a) are connected to a second sleeve (S') by elongated strips (16b, 17b) and the second sleeve (S') is releasably secured to the first sleeve (S) whereby the second sleeve (S') may be released from the sleeve (S) for relative longitudinal movement therebetween to move the hanger slips (16a, 17a) onto the segments (14a, 15a) and secure the liner (L) to the casing (C). The space between the segments (14a, 15a) in each row (14, 15) is substantial to accommodate relatively unrestricted fluid flow thereabout as the apparatus is manipulated and operations conducted in the well bore. After the running string is disconnected from the liner (L) and liner hanger, it is lowered to releasably connect splines on the running string and upper end of the liner. The liner (L) has a rotatable bearing (13) above said sleeves and liner hanger and rotation of the running string is thus transmitted to the liner as it is cemented in the well bore. <IMAGE>
Patent GB-2151537-A (GB)
Title: Moulding onto a metal bore reinforcing sleeve
Inventor: RABE JURGEN
IPC: B29L29/00
Filed: 1984-12-21
Abstract: A cast or injection-moulded member having a bore, such as a pulley 1, is cast or moulded onto a bore-reinforcing member 3 comprising a tubular central portion 4 ending in two radially outwardly directed rims 5 for lateral contact with other members. To improve flow conditions during casting or moulding and to prevent errors in dimensions and running properties, the tubular portion 4 (or rim 5) is formed with one or more window-like apertures 6 through which the polymer may be poured or injected. <IMAGE>
Patent GB-2169391-A (GB)
Title: The cooling of illuminated display equipment for food, confectionery or the like
Inventor: COLVIN LEONARD FRANK
IPC: F21V29/505
Filed: 1985-01-08
Abstract: A cooled light housing for a fluorescent tube (12), particularly for incorporation in the illumination system of food display equipment, comprises an extruded section (1) for example of aluminium, having ducts (8,9,10,11) defined by internal partitions of the extruded section (1). The extruded section (1) is provided with end closures, and adjacent ducts (8,9: 10,11; 9,10;) are coupled at respective ends of the extruded section by gaps formed between the partition walls 5,7,6, and the respective end closure, so that the ducts are connected in series to form a fluid circulation system. The housing may be incorporated in a refrigerated display unit. <IMAGE>
Patent GB-2157078-A (GB)
Title: Wafer alignment apparatus
Inventor: GALBURT DANIEL N
IPC: H01L21/68
Filed: 1985-01-28
Abstract: A semiconductor wafer 19 is secured by vacuum to the top of a shaft 13 and has the shadow of its edge resulting from illumination by a source 24 projected on a light sensor 25 which provides an analogue signal to a processing circuit 26. This supplies digitised information to a computer 27 which also receives information from a resolver 22 which provides a signal representative of the angular orientation of the shaft 13 in successive angular positions, thus enabling the computer 27 to calculate the angular orientation of the wafer. The desired orientation is stored in the computer which energises a motor drive unit to cause a servomotor 20 to turn the shaft 13 to the desired orientation. <IMAGE>
Patent GB-2172266-A (GB)
Title: Gasifying system for beverage dispenser
Inventor: HEDDERICK JOHN BARCLAY
IPC: B67D1/10
Filed: 1985-03-11
Abstract: @ A beverage dispensing system has a valve in a tap 6 controlling dispensing of the beverage through a passage 5 from a rigid or flexible container. Air, nitrogen (or other inert gas) or carbon dioxide gas from a passage 15 is introduced into the beverage in the passage 5 during dispensing for development of a head or froth. The introduced gas flows under pressure (which is preferably adjustable) from the passage 15 and by way of a capilliary tube restrictor 18 and a non return valve 21 communicating with the tube 18 into the beverage in passage 5. The non return valve 21 has a resilient diaphragm 27 which normally closes that valve and is displaceable under gas pressure to admit the gas to the beverage. A labyrinthine mixer 39 is located in the passage 5 downstream of the position where the gas is introduced.
Patent GB-2169080-A (GB)
Title: Measurement system for the detection of defects in electrically conductive material
Inventor: MONTI FEDERICO
IPC: G01N27/90
Filed: 1985-09-11
Abstract: A measurement system for the non-destructive detection of defects in iron and steel products includes a single eddy current or resonance pick-up coil which is coupled to computing means for compensating for lift-off. The computing means is arranged to subtract from the coil output voltage a voltage value due to the distance of the coil from the surface of the product being tested and a voltage value which would be obtained with a defect-free product. The result of the subtraction operation is a voltage value ascribable to the presence of a defect in the product.
Patent GB-2182554-A (GB)
Title: Spindle assembly
Inventor: DANIELS RAYMOND R J
IPC: B60B33/00
Filed: 1985-09-20
Abstract: An assembly of a plastics moulded article mounted for rotation on a spindle comprises castor 11 having a bore 14 which is closed at one end, an annular rib 15 in the wall of the bore and at least one gap (18) in the rib to allow the passage of fluid past the rib. The spindle 10 has a circumferential groove 12, 13 adjacent each end of the spindle so that either end of the spindle can be inserted into the bore and forced past the rib 15. The rib then locates in one of the grooves to retain the spindle in the bore, the other groove being adapted to receive a fastening member e.g. circlip 20 to attach the spindle to an article of furniture 19. Grease deposited at the closed end of bore 10 is forced by spindle 10 through the gap (18) to lubricate the assembly. <IMAGE>
Patent GB-2165893-A (GB)
Title: Unloading twin cylinder compressor
Inventor: PLASKO JR RUDOLPH JOSEPH
IPC: F04B49/00
Filed: 1985-09-24
Abstract: A twin-cylinder compressor includes a housing (12) defining the cylinder bores pistons reciprocable in the bores, and pressure responsive inlet and outlet valves for each cylinder bore. A pair of apertures (90, 92) communicate each of the bores into a common cavity (52) having a disc-shaped relief valve (94) normally urged into sealing engagement with both of the apertures and having a pressure responsive piston (100) responsive to a pressure signal produced when the compressor is to be unloaded. The signal causes the valve (94) to move away from the apertures, so that the compressor pumps air back and forth between the cylinder bores, <IMAGE>
Patent GB-2167234-A (GB)
Title: High voltage capacitor with high energy density
Inventor: CANSELL ALBERT
IPC: H01G4/015
Filed: 1985-10-01
Abstract: An elementary capacitor of high energy density and high voltage, for energy accumulation, discharge, commutation or filtering purposes, comprises two layers A,B formed by a metallization 4,4 having a resistance per surface unit of between 2 and 30 ohm being applied on a fibrous support 5,5' and having at least one further dielectric 6, 7,6',7', two such layers forming the capacitor, which is impregnated with a liquid dielectric and is self-healing. The thickness and the nature of each dielectric as well as the liquid dielectric are so selected to ensure that when the rated voltage is applied, the ratio between the prevailing electric field strength and the disruptive strength is substantially equal for each of the dielectrics. When this capacitor is charged to its rated voltage, the average electric field strength prevailing in the dielectric is between about 200 V/ mu m and more than 400 V/  mu m, and the volumetric energy density is between about 0,5 J/cm<3> and more than 2 J/cm<3>. <IMAGE>
Patent GB-2171642-A (GB)
Title: Improvements in conveyorised heat presses
Inventor: WEISFELD DAVID
IPC: B32B5/24
Filed: 1986-02-27
Abstract: Apparatus for fusing a fusible interlining to a fabric in which a conveyor belt (3) carries the materials around a cylinder (1) which is heated by external heating sources (7b) in front of a reflector (7) and between the main cylinder (1) and a pressure roller (2). The interlining and fabrics are wound on rolls (38) and loaded onto pairs of detachable U-shaped holders (14a, 145b) attached to bars (11, 12) mounted on upright support (10a). Guide means in the form of adjustable collars (18) mounted on bars (19) assist in guiding the material to the entry point (20) to the main cylinder (1). The conveyor (3) is extended after the pressure roller (2) to an off-load guide roller (5) where the processed material is conveyed to driven wind-up rollers (22) mounted on driven shafts (23). A transparent top 40 and associated guides (39) are provided to assist in the correct positioning of the interlining with respect to the fabric. <IMAGE>
Patent GB-2176069-A (GB)
Title: A switch for protection against fault currents
Inventor: BIEGELMEIER GOTTFRIED
IPC: H02H3/05
Filed: 1986-04-16
Abstract: The circuit breaker consists of a housing and contact apparatus (17) arranged with terminals, a fault current releasing device (15), a summation current converter (10), an electronic circuit (19) dependent of network voltage, and an energy storage circuit (13) independent of network voltage. For greater simplicity in assembling and manufacture, the device has only one summation current converter (10) and one fault current releasing device (15), which are used not only for release by the circuit dependent of the network voltage, but also by the circuit independent of the network voltage.
Patent GB-2193634-A (GB)
Title: Herbicidal compositions containing a tetrazole compound and methods of combating plant growth
Inventor: RAVEN CLIVE ALAN
IPC: A01N43/713
Filed: 1986-08-11
Abstract: A herbicidal composition comprises a tetrazole compound of the general formula I:-   <IMAGE> where R<1> represents a phenyl group which is unsubstituted or substituted by a halogen atom, or by a amino group, or by an alkyl, alkoxy or haloalky group having up to 4 carbon atoms, or R<2> represents a phenyl group optionally substituted by a halogen atom, or by a nitro group, or by an alkyl or haloalkyl group having up to 4 carbon atoms, (hereinafter referred to as compound A), together with at least one compound selected from   (i) 2-chloro-4-(1-cyano-1-methylethylamino-)-6-ethylamino 1,3,5-triazine.   (ii) 1-(benzothiazol-2-yl)-1,3-dimethyl urea   (iii) a compound which has the general formula II   <IMAGE> wherein R3 represents a chlorine atom or a methyl, isopropyl or methoxy group, R4 represents a hydrogen or chlorine atom and R5 represents a methyl or methoxy group   (iv) 2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine (v) methyl- or isopropyl-N-benzoyl-N-(3-chloro-4-fluorophenyl)-alaninate.   (vi) Compound of the general formula I:-   <IMAGE> where R6 represents a chlorine atom or a methoxycarbonyl group.
Patent GB-2197755-A (GB)
Title: Electronic circuit housing for damping vibrations
Inventor: BOND JOHN ANTHONY LUCAS
IPC: H05K7/20
Filed: 1986-08-20
Abstract: An electronic circuit housing comprises a heatsink plate formed of at least two metal layers, the said layers 1, 9 being bonded together on two confronting major surfaces thereof with a film of flexible elastomeric adhesive 12 having good heat conduction characteristics combined with resistance to mechanical vibration movements transmitted between said layers. This gives damping of the effects of vibration on mounted parts of the circuit such as surface-mounted components. It thus acts to avoid possible mechanical damage when the circuit is used in severe environmental conditions such as for military equipment. <IMAGE>
Patent GB-2179820-A (GB)
Title: Reducing noise in a video signal
Inventor: PHILIPPS MICHAEL
IPC: G11B20/02
Filed: 1986-08-22
Abstract: A noise reducing circuit comprises a primary path, and a secondary path 4,5,6,7 containing a high pass filter 4, the signals of the two paths being combined 3. Due to the exponential decay response of the high pass filter of conventional noise reducing circuits, the latter are ineffective during large signal jumps representing, e.g. vertical edges. Thus, according to the invention, following a brightness jump in the video signal, the time constant of the high pass filter is switched to a lower value so that noise reduction becomes effective again sooner. The circuit for performing the noise reduction is provided in a secondary path for the video signal with a switchable high pass filter 4, an inverter 5 and a limiter 6. A level detector 8 determines when the filtered signal exceeds a preset level and controls a pulse shaper 9 for reducing the time constant of the filter 4 so reducing the period for which noise reduction is ineffective following eg. a vertical edge. <IMAGE>
Patent GB-2198202-A (GB)
Title: Plural duct
Inventor: SUTTON DAVID MICHAEL
IPC: F24F13/02
Filed: 1986-11-26
Abstract: A moulding of synthetic phenolic foam resin is in the form of a duct 1 having three separate but parallel fluid transporting channels 2, 3, 4. The channels are all circular in cross-section and one central channel 3 lies intermediate the other two channels 2, 4 and has a smaller cross-sectional area. The duct 1 may be used for water in central-heating systems to carry electrical wiring to exhaust boilers or as a ventilator in a bathroom or kitchen. <IMAGE>
Patent GB-2190574-A (GB)
Title: Improvements relating to the rearing of animals
Inventor: BRISBY IAN ROBERT
IPC: A01K11/00
Filed: 1987-01-26
Abstract: The invention provides for electronic monitoring and feeding a group of pigs from twelve weeks to twenty six weeks old, wherein pigs compete for feedstuff from a hopper at which only one pig 10 can feed. Each pig must enter a cubicle to reach the hopper 26 and as it enters, detectors 116, 118 detect the presence of the pig 10; the weight of feedstuff in the hopper is measured before the pig reaches it, and an aerial detects the specific pig in the cubicle. When the pig has finished eating, its departure from the cubicle is sensed and the feedstuff in the hopper again weighed so that the amount of feedstuff eaten by each pig at each visit is measured. Periodically, the pig is weighed and its fat layer thickness measured to indicate its feedstuff conversion efficiency. In this way the farmer can determine more efficiently when to sell individual animals or send them to market. <IMAGE>
Patent GB-2187444-A (GB)
Title: Treatment of gas stream comprising H2S
Inventor: WATSON RICHARD WILLIAM
IPC: C01B17/04
Filed: 1987-01-30
Abstract: A hydrogen sulphide containing feed gas stream (typically including at least 70% by volume of hydrogen sulphide) is divided into a minor stream that flows through pipeline 4 and a major stream that flows through pipeline 6. The minor stream 6 is burnt in a first combustion region 10 to form sulphur dioxide and water vapour. The resulting gas mixture is cooled in a heat exchanger 20 and is typically employed in a second combustion region 26 in which a portion of the hydrogen sulphide content of the major stream is burnt to form sulphur dioxide and water vapour. Reaction between the sulphur dioxide and remaining hydrogen sulphide takes place in a thermal reaction region 30 to form sulphur vapour and water vapour. The proportions of sulphur burnt in the respective combustion regions 10 and 26 are chosen such that about one-third of the total hydrogen sulphide content of the feed gas stream is burnt to sulphur dioxide in these regions. Subsequent reaction between hydrogen sulphide and sulphur dioxide takes place in catalytic reaction regions 42 and 48 with sulphur vapour being extracted in sulphur condensers 38, 44 and 50. By using substantially pure oxygen to support combustion in the second combustion region, a relatively large flow rate of feed gas mixture may be handled in a plant of given size. <IMAGE>
Patent GB-2187412-A (GB)
Title: Indenting device
Inventor: CRAIG MALCOLM THOMAS
IPC: A21C11/12
Filed: 1987-03-02
Abstract: A crimper for indenting a deformable surface (e.g.for sugar craft) utilises an endless band (7) to set the spacing apart of the free ends (4, 5) used for the indenting operation. Ribs (6) can provide locations for the band (7). The adjustable band makes the crimper easier to use by setting the spacing of the free ends. The effect of the adjustment on an exemplified end pattern is shown in Figs 2 and 3. <IMAGE>
Patent GB-2189268-A (GB)
Title: Pole treatment apparatus
Inventor: KNIGHT JOHN KEITH
IPC: B27K3/02
Filed: 1987-04-16
Abstract: Apparatus for treating the buried ends of timber poles such as utility poles, comprises a blade curved to conform to the pole and located at the end of the shaft. The blade is driven through the ground alongside the pole and into unsound timber of the pole, if present. Pole-treating fluid is supplied under pressure to the blade for controlled discharge as the blade is withdrawn, entering the cavity defined by the pole and the blade, and then the buried timber.   <IMAGE>
Patent GB-2209470-A (GB)
Title: Hypodermic needle sheathing, extracting and re-sheathing apparatus
Inventor: CALVERT R GEORGE JOHNSTON
IPC: A61M5/32
Filed: 1987-09-05
Abstract: A hypodermic needle sheath S1 comprises a stable base S2 which can be securely attached to a firm work surface A1, a replaceable cap C1 with self-locking mechanism which is removed to expose the sterile hypodermic needle which is extracted by attaching the syringe hub SH. After use the needle is re-sheathed in a single-handed operation since the needle is securely engaged within the sheath S1 and simultaneously separated from the syringe using the release lever RL provided. The self-locking cap C1 is replaced on the sheath S1 and the entire unit disposed of. The needle-syringe combination may be temporarily stored in the sheath S1. <IMAGE>
Patent GB-2203222-A (GB)
Title: Preventing movement of an article along a shaft
Inventor: HAMBLIN RONALD FRANCIS
IPC: F16C35/067
Filed: 1988-05-09
Abstract: To prevent movement of an article 138 along a shaft 134, an element 140 engages the article 138 and engages the shaft 134 at locations 144 and 146 forming an angle no greater than tan<-1> mu . The locations 144 and 146 of engagement lie in a first plane extending perpendicular to a second plane in which lies the axis of the shaft 134. A third plane extends perpendicular to the axis. The angle is between the first and third planes.  mu  is the coefficient of friction between the element and the shaft. <IMAGE>