baber/WOPTO huggingface dataset:
Patent GB-2047419-A (GB)
Title: Reproduction of photographic material using coupled HP azamethine dyes
IPC: G03C5/40
Filed: 1980-03-24
Abstract: This invention comprises a process for reproducing a silver image in a layer of photographic material in which this silver image is contacted with an aqueous acid solution of a compound which can be reduced by the silver to form a reducing agent, in the presence of a silver complexing agent, causing an imagewise diffusion of the reducing agent to a layer having in it an azamethine dyestuff of general formula:-   <IMAGE>  and there to hydrolyse the dyestuff imagewise. In general formula I R1 represents an amino or substituted amino group or a hydroxy group, R represents substituent groups which may be the same or different, m is 0-3, A, and B, and D together complete an optionally substituted coupler moiety of a colour coupler. The process is used to reproduce an image in an old photograph on a new support base. The process can also be an auto- catalytic process using HCl only as the processing solution when the azamethine dye is a hydroxypyridone dye. The reduced pyridones derived from the pyridones split off by the HCl act as bleach catalysts.
Patent GB-2073586-A (GB)
Title: An umbrella
IPC: A45B25/28
Filed: 1980-04-03
Abstract: An umbrella comprises a flexible water collecting device (81) and a self-supporting device or stand (87) both provided generally within a stick member and controlled by a device (4). On releasing the controlling device (4), the water collecting device (81) and the supporting device (87) protrude out of the stick member owing to the action of a spring mounted in a handle (2). The water collecting device (81) opens automatically to form a small umbrella upon protruding out of the stick member. <IMAGE>
Patent GB-2049244-A (GB)
Title: Information storage arrangement
IPC: G06F12/0891
Filed: 1980-04-29
Abstract: An information storage arrangement comprising two random access memories. While one memory is being used for normal read/write access, the other is automatically cycled through so that each location can be reset. When a "reset" command is received, the roles of the two memories are interchanged, so that the one which has just been reset is now used for normal read/write access. This provides a very rapid reset facility. The invention is of particular use for storing validity marker bits for data items in a slave store. If "reset" commands occur frequently, further memories may be provided so that two or more are being reset while one is in use.
Patent GB-2060542-A (GB)
Title: Heat-sealing articles to a display card
IPC: B65B15/00
Filed: 1980-05-29
Abstract: A machine for heat sealing articles, such as sachets of snack type foods, to dispenser or display cards comprises a hopper 11 containing a stack of cards 12 pre-coated with a heat-sealing adhesive. A transfer mechanism 14 moves the cards one at a time onto a table 13. Bags of nuts are heat sealed to the card by a pressure bar 15 moved by a ram 18 under operator control. Heat is provided by a heater bar 19 below the table. The cards are moved along by an indexing mechanism to enable a series of rows of bags to be applied. Sensors indicate when a card is full and when a full card has been removed to initiate supply of a further card. Two handed operation of the pressure bar is a safety feature. <IMAGE>
Patent GB-2058721-A (GB)
Title: Device for Winding-up Webs
IPC: B65H29/20
Filed: 1980-08-21
Abstract: A device for winding-up a length of paper web (22), emerging from a photo-copying machine, has (spring clip) devices (15) which restrict the winding space from the outside and at least one roller (12, 13) for guiding and/or driving the web. To make the devices (15) more easy to replace, they are provided with a holding means (21) which is supported, at least on one side, on the roller (12 or 13). The holding means may be a half- open resilient clip (14), with one end snapped onto the circumference of the roller (12), and the other end supported on the roller (13). <IMAGE>
Patent GB-2055570-A (GB)
Title: Thermoplastic waterbed mattress
IPC: B29C65/04
Filed: 1980-01-07
Abstract: A thermoplastic waterbed mattress has seams which are lap welded and comprises a top layer (14), a bottom layer (16), and a number of thermoplastic water - motion - damping members (12) attached inside the mattress to the top and bottom layers (14, 16). Each damping member (12) has at least one opening (24) to allow water flow in and out, and each is welded to the top and bottom layers with little or no distortion of the layers so that they are not weakened. <IMAGE>
Patent GB-2063487-A (GB)
Title: Pipe Joint Testing Apparatus
IPC: G01M3/28
Filed: 1980-11-07
Abstract: Pipe joint testing apparatus for testing a joint 1 between two pipe sections 2 and 3 comprises a plurality of abutting support segments 10 each consisting of two tubular members 11 welded to a link plate 12. A tube 16 passes through each set of tubular members 11. The link plates abut resilient sealing means 13, 14 which extends right round the inside of the pipe while spanning the joint to form an annular chamber 15. The tubes 16 are inflated to urge the segments 10 outwards to seal the chamber 15, whereupon the chamber 15 is pressurized to test the joint 1. <IMAGE>
Patent GB-2088410-A (GB)
Title: Removal of Deposits from Electrodes in Performing Electrolytic Processes
IPC: C25B15/00
Filed: 1980-11-25
Abstract: In electrolysing eg. halogen salt solutions having a low halogen salt concentration with direct formation of halogen, an electrolytic cell is used comprising at least one anode and at least two electrodes which can function as cathodes. The anode is permanently connected as an anode, a portion of the anodic current is passed through one electrode which can function as a cathode, and a cathodic current is passed through the other electrode which can function as a cathode. The polarity of the electrode functioning as a co-anode and of the electrode functioning as a cathode is periodically changed in cycles of 70- 350 minutes.
Patent GB-2069624-A (GB)
Title: Fuel injection pump
IPC: F02M57/02
Filed: 1981-01-09
Abstract: A fuel injection pump for supplying fuel to internal combustion engines includes a pump plunger 12 slidable within a bore 11 in a pump body 10. The plunger is actuated by a rocker mechanism directly by the associated engine and in order to adjust the mechanism the plunger 12 must be set at a known position. This is determined by a spring loaded pin 25 contained within a housing 26, the pin can be depressed to engage with the side wall of a groove 24 in the plunger to set the plunger at the predetermined position. <IMAGE>
Patent GB-2067408-A (GB)
Title: Expanded corncob grits having increased absorptivity and a method for the preparation thereof
IPC: A23L1/18
Filed: 1981-01-13
Abstract: There are provided novel expanded corncob grits and a method for the preparation thereof. The expanded grits which possess increased absorptivity are found to be useful in the formulation of insecticidal baits, especially fire ant baits, and other agricultural compositions. Stomach poison insecticides, e.g.   <IMAGE> are used.d
Patent GB-2068561-A (GB)
Title: Filters for gas sensors
IPC: G01N27/16
Filed: 1981-01-21
Abstract: The catalyst material of a detector element 4 of a catalytic gas sensor is protected from substances which can impair its sensitivity by a filter 8 disposed in an opening 17 through which gas enters the detector, the filter comprising a microporous alumino-silicate compound 11, for example a zeolite, which prevents these substances reaching the detector element 4 but permits the passage of the gases to be detected. The compound is retained between two members 12 of porous permeable material, for example, high density polythene and is contained within an enclosure of wire mesh 13. <IMAGE>
Patent GB-2094584-A (GB)
Title: Transient-noise simulators
IPC: H03H7/38
Filed: 1981-03-09
Abstract: A noise simulator includes a reflection absorbing circuit 2 connected between a high-frequency noise pulse generator 1 comprising a charged delay line 12, and a DC blocking capacitor 4 connected to the power line of the equipment under test. The reflection absorbing circuit consists of parallel and series resistors 21, 22 the resistances of which are determined so that an impedance as viewed from the input side of the reflection absorbing circuit when a predetermined standard impedance is connected thereto is equal to the output impedance of the generator and so that an impedance as viewed from the output side of the reflection absorbing circuit when the generator is connected thereto is equal to the predetermined standard impedance. A grounded electric conductor plate 7 is movably disposed adjacent to resistor 22 and capacitor 4 to adjust the stray capacitance prior to use for noise simulation. <IMAGE>
Patent GB-2072546-A (GB)
Title: An automatic bar stock feeder
IPC: B23Q7/00
Filed: 1981-03-20
Abstract: A automatic bar stock feeder for a machine-tool includes a flat guide plate (18) which remains stationary during the machine working cycle until, when the final stub of bar stock comes level with gripping jaws, it is moved by a rack and pinnion arrangement, of which the rack is formed on the guide plate (18), to provide for the raising and lowering motion for a bar guide cover (9) via a cam guideway (21), and to provide for opening and closing motion for the jaws, via two further cam guideways (19) and (20). The guide plate (18) also has a sloping cut out for providing motion to separating pins (12) which control separation of succeeding bars. <IMAGE>
Patent GB-2074741-A (GB)
Title: Motorised camera
IPC: G03B17/42
Filed: 1981-03-20
Abstract: A motorised camera (after shutter release) operates the film take- up spool and charges the shutter whether or not a film is present. As shown, on actuation of a shutter release 28, lever 27 is rotated against a spring bins closing a switch 38 to actuate a film wind motor 31 (operating take-up spool 10), and freeing a disc 24 having a cut-out 24a. During film advance, rotation of a film sprocket 34 is transmitted through a one-way clutch 14a to disc 24 which, during rotation, rotates lever 26 against a spring bias to effect shutter charging. On one complete rotation of disc 24, lever 27 returns to its original position, stopping motor 31. In the absence of film, the forward film drive is transmitted from spool gear 9 through a one way clutch 14b to disc 24 for operation as before. In depressing a button 37, motor 31 is connected to rewind fork 35 instead of spool 10. <IMAGE>
Patent GB-2076948-A (GB)
Title: Improvements in and relating to hot water supply systems
IPC: F24D17/00
Filed: 1981-03-27
Abstract: A hot water supply system includes a hot water storage vessel (2) and a cold water feed cistern (8) supplying cold water to an inlet (4) of the storage vessel (2). The storage vessel (2) has a heated water outlet (6 or 16) connected to a point of demand such as a shower or mixer tap. A cold water draw-off pipe (12) is located within the storage vessel (2) with its inlet end (14) close to, but not connected to, the inlet (4) whereby some of the cold water fed to the storage vessel (2) from the cistern (8) flows into the pipe (12), the outlet end of said pipe (12) being connected to said point of demand such as a shower or mixer tap. <IMAGE>
Patent GB-2073806-A (GB)
Title: Mining Thick Coal Seams
IPC: E21C/
Filed: 1981-04-13
Abstract: A thick coal seam 1 is divided horizontally and/or vertically into extraction blocks 2 which are bounded and separated by stowing pillars 5, the cavities of which are advanced at a level higher than the level of the roof 4 of the extraction space of the block or blocks, after which the cavity of the pillar is back-filled & the block is extracted by means of block caving in a manner known per se.   <IMAGE>
Patent GB-2080324-A (GB)
Title: Lecithin-containing product
IPC: A23J7/00
Filed: 1981-07-16
Abstract: An easily-workable lecithin- containing product, suitable for use in medicinal and dietetic preparations is prepared by combining lecithin with a fat, such as soya oil, with the fat content at a minimum of 5%W/W. Lecithin is preferably from 20% to 75% W/W of the product which may include emulsifiers and carriers such as phosphates, carbonates, sulphates and polymer silicates.
Patent GB-2082459-A (GB)
Title: Apparatus for vein removal
IPC: A61B17/00
Filed: 1981-08-13
Abstract: An instrument for harvesting a section of vein for use in a different environment comprises an elongated central rod 10, to support the vein being harvested and guide a cutting element 20, the tubular cutting element having a cutter head 22 which can be passed along the rod-supported vein and rotated to cut the vein free from surrounding tissue, access to the vein being provided by a first incision, through which the rod and cutting element are introduced to the vein, and a second incision through which the second end of the vein section is cut and ligated. The instrument containing the vein section and central rod can be withdrawn through the first incision. <IMAGE>
Patent GB-2104882-A (GB)
Title: Briquette for smelting process and method of its production
Inventor: HARRIS WALTER
IPC: C22B1/243
Filed: 1981-08-28
Abstract: A briquette for use in a smelting process comprises a smeltable metal compound in a crystalline lattice. The briquette may be made by mixing dross from Pb/Zn smelter and optionally coke dust with an ionic solution, for instance sulphuric acid, to form a paste. The acid reacts with the dross to form metal salts. The paste is briquetted and the briquettes are allowed to dry. On drying the metal salts form a crystalline lattice binding the unreacted dross into a briquette. The briquette may also include a fluxing agent such as sodium chloride. The briquette may be formed from fine ore from a crusher or material collected in a cyclone separator downstream of a smelter.
Patent GB-2085589-A (GB)
Title: Transmitting and Receiving Ultrasound
IPC: A61B8/06
Filed: 1981-10-08
Abstract: In an ultrasonic Doppler velocimeter for measuring blood flow it is necessary to change the frequency of insonation according to the site and size of a vessel to be investigated. By using several different crystal pairs, for example 11, 11' for different frequencies and parallel-connecting all transmit crystals, for example 11, 12 and all receive crystals, a single probe 10 is provided which is suitable for investigating blood flow in different blood vessel conditions. Optimum insonation frequency selection is achieved retroactively by use of a voltage control oscillator 15, and a frequency control circuit 25 which compares powers received at different frequencies. Signals representative of blood velocities appear at the output of scaler 24 which ensures that the same velocity provides the same output independently of frequency of isonation. <IMAGE>
Patent GB-2088986-A (GB)
Title: Fastener element
IPC: F16B37/04
Filed: 1981-10-15
Abstract: A metallic fastener or insert 10 adapted to be forced into a recess R provided in a supporting article A has projections 18 disposed in longitudinally spaced series, with each series alternating circumferentially with flutes 20. Each projection 18 has a flat shoulder 24 adjoining a curved outer face 26 along an edge 34 defining a sharp, tapered, feather edge. When the insert 10 is forced into the recess R, the feather edges 34 are deflected by the walls of the recess into inclined positions 36. The direction of inclination is such as to cause the inclined feather edges to become forced into the material of the recess wall, thereby resisting withdrawal or rotation of the insert 10. The fastener has either a threaded bore or an externally threaded longitudinal extension. <IMAGE>
Patent GB-2110733-A (GB)
Title: Treating fibres
Inventor: STERN SYDNEY C
IPC: D06M15/256
Filed: 1981-12-04
Abstract: A method of treating synthetic organic fibres, which comprises coating the fibres with polytetrafluoroethylene particles, in the presence of water and a water-soluble chromium complex of a long chain compound having a polar end and a non-polar fluorocarbon end which is both organophobic and hydrophobic. Fabrics, in particular woven fabrics, can be treated by this method to provide improved resistance, e.g. to soiling and chemicals.
Patent GB-2092478-A (GB)
Title: Electrostatic spraying process and apparatus
IPC: B05B5/053
Filed: 1982-01-18
Abstract: An electrostatic pesticide spraying process comprises producing a descending cloud of charged pesticide spray particles 21 and impressing a lateral component of motion upon the cloud by means of a laterally disposed electrode charged in the same sense as the cloud. Apparatus for carrying out the process comprises a hand-held electrostatic sprayer having a sprayhead 7,8,9 with one or more dependent charged conductors 12,13 adjacent the sprayhead. Thus sprayed material is deflected away from an operator 18. <IMAGE>
Patent GB-2096217-A (GB)
Title: Improvements in or relating to road pavers
IPC: E01C19/42
Filed: 1982-03-25
Abstract: In a road paver in which a screed (3) is drawn by a tractor (1), the disposition of the screed relative to the tractor is determined by a pair of links (5 and 6) disposed one above the other and pivotally connected to the tractor and the screed. The vertical separation between the connections (5b and 6b) to the screed is greater than the vertical separation between the connections (5a and 6a) to the tractor. <IMAGE>
Patent GB-2095828-A (GB)
Title: Detection of defects in fibrous arrays
IPC: G01N33/36
Filed: 1982-03-31
Abstract: Defects in an array of textile fibres, such as wool tops, laps or webs, are detected by passing the array 13 past at least one transmitted light sensor 11 and one reflected light sensor 21, and detecting the presence or character of a defect from signals produced by the sensors corresponding to the same parts of the array. The fibrous array is preferably drafted, for example by aprons 26 and rollers 27 and 28 and passed successively past transmission sensor comprising detector 12 and light source 14 and reflection sensor 21 comprising sources 24, sensor 22 and diffuse reflector 25, the signals produced by the first sensor 11 being synchronised with those produced by the second sensor 21 in respect of the same portion of the array. The detectors may be linear arrays extending transverse to the fibre array. The signals are analysed electronically to detect the presence or size of a defect, and to discriminate by means of differences in reflectance or transmittance between defects of different character. <IMAGE>
Patent GB-2109501-A (GB)
Title: Sheet metal connectors
Inventor: WILLIAMS-GOBEAUX PIERRE
IPC: B62D21/09
Filed: 1982-09-21
Abstract: Connection device with a connection element (26) for two sheets (10, 10'), profiles for the like, of which each has at the connection location at least one cup-shaped formation (12) with flat bases (14) parallel to the plane of the sheet, in particular for structures of vehicle underframes, for the avoidance of damage to the sheets (10, 10') by elastic deformation during application of the maximum permissible loading to the connecting element (26) it is provided that the two formations (12) are formed mirror-symmetrical in relation to one another and form between them a hollow space, in which a spacer (20) is tightly enclosed against the hollow space walls, to which the inclined surfaces corresponding to the cup-shaped formations (12) which are applied against the opposing zones (16) of the two formations (12) in a friction-tight manner and of which the thickness (b) is so great that both sheets (10, 10') have after the connection has been made a small clearance (s) from one another. <IMAGE>
Patent GB-2109570-A (GB)
Title: Heat sensitive recording paper
Inventor: WATANABE SHOJIRO
IPC: B41M5/337
Filed: 1982-09-30
Abstract: Heat-sensitive recording paper comprises a paper or plastics support bearing a layer of (i) an electron- donating colorless dye (such as a triarylmethane, diphenylmethane, xanthene, thiazine or spiro compound) in an amount of 10 to 60 weight % of the acid, (ii) an organic (preferably aromatic carboxylic) acid which color- forms when heated on contact with the dye, and (iii) a phenol, in an amount of 5 to 200 weight % of the acid, of general formula   <IMAGE> where R1 is branched C3-8 alkyl, R2 is H or as R1, R3, R5, R6 and R7 are H or C1-3alkyl and R8 is H or C1-8 alkyl. Four such phenols are named. The layer is coated from a dispersion of (i), (ii) and (iii) in an aqueous solution of a high polymer such as PVA. The phenol (iii) gives a good image density even at 60 DEG C and 20% RH, without increased fog.
Patent GB-2111529-A (GB)
Title: Aluminium-based brazing alloy
Inventor: KUCZA JEAN-CLAUDE
IPC: B23K35/28
Filed: 1982-12-02
Abstract: An aluminium-based brazing alloy which has improved characteristics, in particular for fluxless brazing has the following composition (in % by weight):   <IMAGE>  Si=from 6 to 12  Fe=</=0.7  Mg=from 0.5 to 1.5  Bi=from 0.20 to 0.35  V=from 0.05 to 0.25  the remainder being A1 and impurities. This alloy is particularly well suited for brazing heat exchangers, in particular car radiators. Vacuum brazing is referred to.
Patent GB-2111716-A (GB)
Title: Improvements in or relating to optical scanning and optical image transmission
Inventor: EVANS JOHN YORATH GWYNNE
IPC: G02B26/08
Filed: 1982-12-13
Abstract: An optical image transmission apparatus comprises a coherent bundle (1) of optical fibres having a plane input end face (2) and a plane output end face, a first optical scanning device (5) for scanning the image to be transmitted over the input face of the bundle, and a second optical scanning device at the output end of the bundle for scanning the resulting image at the output end face of the bundle in synchronism with the scanning of the image over the input end of the bundle. Each optical scanning device comprises an optical element (4) having an optical axis (9), a cage (7) in which the optical element is retained and within which the element is tiltable about axis normal to the optical axis, and a solenoid structure (11-14) for tilting the optical element about a tilt axis which is scanned around the optical axis. <IMAGE>
Patent GB-2112899-A (GB)
Title: Improvements relating to drive mechanisms
Inventor: MUSTON DAVID MICHAEL
IPC: A63H18/14
Filed: 1983-01-06
Abstract: A drive mechanism e.g. for model cars, curtains and blinds, comprises an elongate member 10 having a central core 16 and helical flights 18 which member is mounted for rotation about its lengthwise axis in an elongate housing 11 which has a lengthwise extending slot therein. A slider 12 is disposed in the slot and engages one of the flights so that rotation of the member moves the slider along the slot. Rotation of the member 10 may be by means of a handle or a motor. The sliders of two such drive mechanisms arranged parallel to each other may be interconnected by a rod to which may be attached the leading edge of a blind. To operate curtains, two opposite handed elongate members may be disposed end to end in the housing and rotated in unison, the leading ends of two curtains being respectively connected to the sliders. The member 10 is produced by extrusion from a rotating die. <IMAGE>
Patent GB-2113280-A (GB)
Title: Improvements in reflector systems
Inventor: STEWART DOUGLAS LUNUN
IPC: E01F9/669
Filed: 1983-01-11
Abstract: There is described a reflective system for delineating roadways and road-side works. The system comprises a cord adapted to be supported along the road to be delineated and carrying a plurality of reflectors. In the preferred embodiment the reflectors are rotated by wind and are thus self-cleaning. <IMAGE>
Patent GB-2143262-A (GB)
Title: Drain inlet valve traps
Inventor: LIO WAN MING
IPC: E03C1/298
Filed: 1983-07-12
Abstract: In a drain inlet fitting 2 having a counterweighted valve flap 6 to prevent emission of odours, the fitting 2 is detachably supported, as by screw threads or resilient means, in a sleeve 8 fixed in the drain pipe, and has a sloping wall 3 which overlies the valve pivot 4 and provides a recess accommodating the valve counterweight 7. The inlet grating 1 is dished and has apertures shaped to promote swirl. <IMAGE>