baber/WOPTO huggingface dataset:
Patent GB-1236108-A (GB)
Title: Improvements in or relating to optical memories
Inventor: DUGUAY MICHEL ALBERT
IPC: G02F1/35
Filed: 1968-12-23
Abstract: 1,236,108. Uses of luminescence. WESTERN ELECTRIC CO. Inc. 23 Dec., 1968 [26 Dec., 1967], No. 60966/68. Heading C4S. [Also in Divisions G4 and HI] An optical memory comprises a solid twophoton fluorescent medium having at least two energy states at levels such that a radiative transition from a higher state to a lower state can occur, means producing a pair of energy pulses having a duration of a picosecond or less which coincide and overlap within a region of the medium to create in the region free radicals at an energy level intermediate the two states, and means for producing the radiation transition by increasing the energy of the free radicals to the higher state. A solidified fluorescent medium 12, which can be frozen or polymerized, is used as a two dimensional or three dimensional store. A laser beam pulse of frequency f 1  is deflected by deflector 15 and applied to the medium 12. A laser beam pulse of frequency f/ 2 = +¢f 1  is deflected and applied to block 12. The pulses are arranged to overlap at a particular memory cell 18 and have frequency and intensity such that both beams are required to excite electrons from level S o  to level S 1  from where they undergo a non-radiative transition to level T 1  and produce free radicals which do not recombine because the medium is solid. Read out can occur by applying a collimated beam from an infra red source (e.g. CO 2  laser) to the cell to liquefy the cell, if the medium is frozen to cause the radicals to combine, undergo a non-radiative transition from T 1  to S 1  and allow electrons excited to S 1  to fall to one of the levels of S 0  accompanied by fluorescence which is detected. If the medium is polymerized frequencies f 3 , f4 of suitable intensities are used to create read-out in a similar manner. The two frequencies can be used to excite the free radicals to a level higher than level S 1  which is then reached by a non-radiative transition. In a further embodiment, one pulse source is used (e.g. a Nd : glass laser), the beam being applied to a frequency doubler to produce frequencies f 1  2f 1  which are applied to a variable delay delaying frequency 2f 1  more than f 1 . The memory cell block is backed by a mirror reflecting frequency f 1  but not 2f 1  so that the cell selected is that occurring when reflected frequency f 1  overlaps delayed frequency 2f 1 . The fluorescent medium may be anthracene, pyrene, 3,4-benzpyrene and may be polymerized by mixing the solid form with paranitrostyrene and liquid styrene, then heating. Alternatively it may be dissolved in benzene lowered to liquid helium temperatures.
Patent GB-1260580-A (GB)
Title: Polyurethane elastomer and producing the same
IPC: C08G18/12
Filed: 1969-12-16
Abstract: 1,260,580. Microporous polyurethane coating. KURARAY K.K. 16 Dec., 1969 [16 Dec., 1968; 19 Dec., 1968; 15 March, 1969], No. 61172/69. Heading B2E. [Also in Divisions B4, B5, C3, D1 and D2] Leather substitutes are prepared by coating solutions of polyurethanes onto substrates such as polypropylene sheets or microporous sheets previously obtained by coagulating similar polyurethanes within non-woven webs of nylon or polystyrene/nylon fibres, the layer obtained by such coating step being subsequently treated in a coagulation bath to develop microporous properties. The polyurethane used is an elastomer derived from an organic diisocyanate, a C 2-4  aliphatic diol chain extender and a polymer polyol consisting essentially of a polyester polyol of molecular weight 800 to 5,000 obtained by reacting an aliphatic dicarboxylic acid with a mixture of 20 to 80 mole% of 2-ethylhexane-1,3-diol and 80 to 20 mole % dipropylene glycol, ethylene glycol, a propylene glycol or a butylene glycol. Solvent mediums for the coating composition are dimethyl and diethyl formamides and dimethyl sulphoxide; aqueous or methanolic solutions containing such solvents being used for the coagulation baths. Softeners such as sorbitan monostearate and stearyl alcohol, and other materials such as carbon black may be incorporated in the polyurethane impregnant solution. The coated substrates may be further coated with colouring agents and embossed using a roller having the pattern of natural leather.
Patent GB-2001785-A (GB)
Title: Watch combined with a compass
IPC: G04B47/06
Filed: 1978-06-02
Abstract: The watch makes it possible to determine the direction of a geographical point i.e. Mecca, wherever the wearer of the watch may be in the world, by having a compass (11) and a ring (15) bearing the names of geographical places, which is movable by means of a button (17). <IMAGE>
Patent GB-2002351-A (GB)
Title: Optionally substituted benzoin derivatives, their method of preparation and use
IPC: C07D263/32
Filed: 1978-07-12
Abstract: Optionally substituted benzoin derivatives of the general formula I   <IMAGE> and R and R' each are phenyl optionally substituted by C1-4-alkyl, C1-4-alkoxy or -SO2R'''' = (C114-alkyl, C214- alkenyl, aryl or arylalkyl), R and R' being identical or different,  n is 0 or an integer from 1 to 4,  arylene is p-phenylene or, if n = 1, also 1,4-naphthylene,  R'' is hydrogen, C1-4-alkyl or C1-4-alkoxy and  R''' is hydrogen, C1-4-alkyl, C1-4-alkoxy or SO2R'''', are prepared from benzoin derivatives and acyl halides and are useful as intermediates in the synthesis of oxazole derivatives having a use as radiation converters. The synthesis of certain of the oxazole derivatives from simple benzoin compounds according to the prior art is lengthy and expensive and the invention seeks to simplify the synthesis.
Patent GB-2013360-A (GB)
Title: Spectacle nose pads
IPC: G02C5/12
Filed: 1978-07-17
Abstract: A pad consists of an injection moulding of plastics material and comprises a pad plate and an extension 3 which is integral with said plate and formed with first retaining means. A pad support 5 is adapted to be secured to a spectacle frame and has second retaining means. Said first and second retaining means interengage resiliently to secure said pad to said pad support. <IMAGE>
Patent GB-2002368-A (GB)
Title: Herbicidal 2-(4-Alkoxyphenyloxy) pyridine compounds
IPC: C07D213/643
Filed: 1978-07-27
Abstract: Herbicidal pyridine compounds of the formula   <IMAGE> wherein Z and Y each represent a fluorine, chlorine, bromine, iodine, or hydrogen atom, or a trifluoromethyl, difluoromethyl, or chlorodifluoromethyl radical, provided that at least one of Z and Y is a halogenomethyl radical; R<1> represents hydrogen or an alkyl radical of 1 to 4 carbon atoms; and R<2> is a cyano group; a carboxyl group; one of a specified range of carboxamide or alkoxycarbonyl groups; a cyclohexyloxycarbonyl radical optionally substituted by one or more halogen atoms or methyl radicals; an alkenyloxy-carbonyl radical in which the alkenyl groups contains from 3 to 6 carbon atoms; a phenoxycarbonyl radical optionally bearing one or more halogen or methyl substituents; or a benzyloxycarbonyl radical, the phenyl group of which optionally bears one or more halogen or methyl substituents; and, in the case of compounds wherein R<2> is a carboxyl group, salts thereof are useful as selective herbicides for grass weeds in broad-leaved crops.
Patent GB-2001767-A (GB)
Title: Measuring torque and rotation
IPC: G01D5/347
Filed: 1978-07-27
Abstract: A device for measuring torque and angular movement of a steering shaft of a vehicle has a rotatable measuring part with strain gauges for measuring the torque and a measuring element for measuring the angle. The measuring part consists of an upper ring 19 and a lower ring 18 connected to one another by a plurality of flexible metal strips 20 arranged cage-wise at least some of which have strain gauges 21 affixed to them. The angle is measured by an electro-optical pulse transmitter 25 in the housing of the hub and connected to the steering shaft via gear transmission elements 26, 27. A battery- operated X-Y recorder is provided to evaluate and record the results of the measurements. Pressure cells are provided for measuring the pressure in servo-assisted steering, the values being fed to the recorder. <IMAGE>
Patent GB-2003742-A (GB)
Title: Fluid supply system including a pressure-swing adsorption plant
IPC: B01D53/047
Filed: 1978-08-17
Abstract: The invention relates to the technique of gas separation by way of selective adsorbents. A fluid supply system includes a pressure-swing adsorption plant 1 e.g. for supplying oxygen-rich gas to an activated sludge reactor 2 in a sewage works. The product gas from the plant is supplied to the utilisation apparatus by a first fluid-dynamic machine, e.g. a compressor 3, at a rate dependent on the demand for the gas, while waste gas is desorbed from the plant by a second fluid-dynamic machine, e.g. a vacuum pump 5. When using the plant to separate oxygen from an air feedstock the major proportion of the power consumed by the plant is represented by the vacuum pumps, which has to impell substantially greater volumes of gas than the product compressor 3. To economise on the power consumed by the plant, the rate of delivery of the vacuum pump 5 is controlled by means 9 sensitive to the demand of the utilisation apparatus for product gas, so that a reduction in the demand from the product compressor 3 leads to a reduction in the power consumption of the vacuum pump 5. <IMAGE>
Patent GB-2016216-A (GB)
Title: Device for connecting a test instrument to an ignition coil
IPC: H01T13/05
Filed: 1978-08-30
Abstract: A test instrument may be connected to an ignition lead by means of a device interposed between the ignition coil and ignition lead plug and comprising a metal sleeve 4 having at one end a contact 7 like that of the ignition lead plug 3 and having at the other end an aperture like that provided in the coil to receive the ignition lead plug. The sleeve 4 also has a connecting component which is accessible from the outside for connection of a test instrument and which may take the form of a non- protruding plug-in contact component 14, a protruding tongue, or a protruding insulated conductor. The device permits connection of a test instrument without disturbing the screening arrangements. <IMAGE>
Patent GB-2031217-A (GB)
Title: Reprocessing nuclear fuel
IPC: G21C19/34
Filed: 1978-10-05
Abstract: In a process for the reprocessing of nuclear fuel material, fuel pins which have been removed from a fuel element are fed into a cylindrical chamber 12 on one at a time. When sufficient fuel pins are in the chamber they are pushed by a ram 17 into a slotted steel can 20 which is transported to a shear machine where the fuel pins and the can are cut into small pieces. The slots in the can may be arranged parallel to the axis of the can on a helical path. The invention is of particular use for fuel elements in which the fuel pins are supported inside inner and outer sleeves of graphite by grids and braces. The pins may be pulled one at a time from the fuel element with the sleeves intact or the fuel elements and grids may be separated from the sleeves and all the pins removed from the grid in a single punching operation. The graphite sleeves may be split between a fixed horizontal blade and a vertically moving blade and the split parts may be crushed to facilitate disposal. <IMAGE>
Patent GB-2019532-A (GB)
Title: Low Noise Value
IPC: F16K47/02
Filed: 1978-12-07
Abstract: A valve (20) for location in a fluid flow system communicating with a fluid conduit (26) to regulate flow while reducing the noise attendant therewith, comprises a valve body (12) having a pair of spaced-apart ports (14 and 16) and a central passage (18) therebetween, a diffuser means (180) disposed in one of the ports (16) extending into the fluid conduit (26), and a valve closure member (30) movably disposed in the central passage (18) for regulating fluid flow therethrough. The closure member (30) slides within a perforated sleeve (175) and, in the closed position of the valve, abuts a valve seat. <IMAGE>
Patent GB-2009694-A (GB)
Title: Improvements in or relating to conveyors
IPC: B28C7/10
Filed: 1978-12-08
Abstract: The invention provides a conveying apparatus especially for sand and cement having a tapered helical bar 15 wound about a supporting shaft 16 and spaced from it and secured at its ends to the shaft. The bar and shaft may extend through one or more hoppers 10 to 13 picking up the required quantity of different material in each, mixing in transit and discharging at chute 21. <IMAGE>
Patent GB-2012648-A (GB)
Title: Electric spark erosion machining
IPC: B23H1/02
Filed: 1979-02-02
Abstract: An electrical spark erosion machine in which a monitor distinguishes arcing from sparking by the incidence of open circuit. A gap between a workpiece 10 and a tool electrode 11 is servomechanically regulated and electrical pulses from a pulse generator 14 are fed to the gap. A capacitor C2 is charged to a voltage which closely approaches the peak open-circuit voltage by the said pulses which occur during open-circuit. If arcing occurs the capacitor discharges to a voltage less than that set by a zener diode ZD1 and a relay RL1 is deenergized; the retraction of the tool or the giving of an alarm is initiated thereby. <IMAGE>
Patent GB-2042674-A (GB)
Title: A Friction Drive Wheel
IPC: F16H55/34
Filed: 1979-02-19
Abstract: A friction drive wheel suitable for high impressed loads has a central hub (1) in which are mounted a plurality of resilient spokes (3). The spokes over at least a portion of their length exhibit curvature in a plane normal to the axis of the wheel and may be tapered towards their free end to modify the stress/strain relationship. A suitable tyre for the wheel has stepped projections (10) which engage the ends of the spokes. <IMAGE>
Patent GB-2016479-A (GB)
Title: Sulphurised polybutenes
IPC: C08F8/34
Filed: 1979-03-05
Abstract: A sulphurised polybutene containing at least 2 gram atoms of sulphur per mole of polybutene having at least 16 carbon atoms and a number average molecular weight of between 220 and 1000 is produced by reacting the corresponding polybutene with a molar excess of a sulphur-halide at a temperature between 0 DEG  and 50 DEG C to form an intermediate di-(haloalkyl)sulphide derivative which in turn is reacted with a water-soluble inorganic polysulphide at a temperature above 60 DEG C. The sulphurised polybutenes are very effective additives for lubricating oils, gear oils, cutting oils and as extreme pressure additives.
Patent GB-2020572-A (GB)
Title: Impact pulverizer beater bars
IPC: B02C13/28
Filed: 1979-04-30
Abstract: In a mounting for the impact strips i.e. beater bars on the rotor of an impact pulverizer or breaker, the strips (4) are fitted into recesses (5) on the rotor shaft (3), said recesses being open outwards as considered radially, the front and rear sides of said strips as considered with respect to the direction of rotation having longitudinal grooves (7, 8) of arcuate cross-section. The strips are held in the recesses (5) by rods (6) connected to the discs (2) and engaging in the longitudinal grooves (7, 8), on one side, while on the other side they are held therein by clamping wedges (9). For the play-free mounting of the strips (4), longitudinal grooves (7, 8) are provided one only on the front side and one only on the rear side, while the rod (6) provided at the rear side of the strip forms an axis of rotation for the strip (4). The clamping wedge (9), which is freely displaceable in the recess (5), engages by a projecting strip (10) in the front longitudinal groove (8). <IMAGE>
Patent GB-2050185-A (GB)
Title: Liquid purification device
IPC: B01D21/00
Filed: 1979-06-02
Abstract: A device for purifying a liquid e.g. water comprises a rectangular tank having a compartment (2) for effecting growth of particles in the liquid to be purified, by causing coalescence of the particles, a compartment (3) containing a plate-type separator for causing removal of the particles, and a final treatment compartment (4) containing a filter, such as a sand filter. Compartment (2) comprises a plurality of vertical chambers connected in series. Auxiliary, slidable, planar or corrugated plates may be arranged within the vertical chambers. Compartment (3) contains a plurality of inclined, corrugated plates, the corrugations being directed transversally to the flow direction of the liquid. <IMAGE>
Patent GB-2024796-A (GB)
Title: A melting vessel for explosives
IPC: C06B21/00
Filed: 1979-06-05
Abstract: A melting vessel for explosives is provided with an internal agitator and has inside walls formed as an array of hollow ribs for receiving the flow of a heat transfer medium. In a preferred embodiment, the vessel has outer and inner jackets, and the inner jacket wall is folded in wave like manner to form hollow ribs which constitute separate channels for the heat transfer medium.
Patent GB-2051493-A (GB)
Title: motors for synchronous salient- pole electrical machines
IPC: H02K1/24
Filed: 1979-06-08
Abstract: A rotor for a synchronous salient- pole electrical machine has a rim built up in annular layers (27-35) consisting of segments (4, 5, 6, 7, 8) provided with recesses (9, 10...26) forming slots (31-3040) on the rim circumference, in which slots poles (21-240) are mounted to form a plurality of groups (e.g. 21-220 and 221-240) distributed in series over the rim circumference; joints between segments are relatively staggered from layer to layer but the recesses are aligned; and distances between the adjacent slots (31 and 32, etc) in all the groups is the same but is different from the equal distances between the adjacent slots (340 and 31) of different groups. In some segments (4, 7), the adjacent recesses (9 and 10, 21 and 22, etc) are spaced from each other by the same distance equal to the distance between the slots within a group. In other segments (5, 6, 8), mounted in those layers (27, 28, 29, 33, 34, 35) of the rim, which between the places of location of the adjacent slots (340 and 31) of different groups, there are not joints between the segments, the adjacent recesses (13 and 14, 15 and 16, 18 and 19, 19 and 20, 25 and 26) are arranged in the same manner except for two adjacent recesses (14 and 15, 17 and 18, 24 and 25) in each segment located at a distance equal to the distance between the adjacent slots (340 and 31) of different groups and coincident, upon the installation, with the places of location of these slots. The invention may be used in hydrogenerators. <IMAGE>
Patent GB-2024250-A (GB)
Title: Treatment of aqueous slurries of particulate material
IPC: B03D1/08
Filed: 1979-06-22
Abstract: Process for beneficiating and dewatering an aqueous slurry of particulate material e.g. coal. The slurry is first subjected to froth flotation and the resulting froth provides a concentrate. An agglomeration agent, preferably a liquid hydrocarbon is added to the concentrate to cause selective agglomeration of the particulate material in the concentrate. The concentrate may then be subjected to a shear regime, for example by means of a rotary impeller or agitator, before passing to dewatering equipment such as a screen, filter (drum, disc or belt) or centrifuge. Alternatively the concentrate with added agglomeration agent may be passed directly to the dewatering equipment.
Patent GB-2025520-A (GB)
Title: Cooling air conveying system for internal combustion engines
IPC: B60R13/08
Filed: 1979-06-25
Abstract: A sound absorbing casing (2) substantially surrounds an engine (1) behind and in front of which are first and second fans (5, 4). The casing (2) serves as a cowling for the fans (5, 4) which convey air forward of the vehicle through openings 6 and a duct (7) to provide a flow of air for cooling the transmission gearing (8), radiator (9), engine (1) and auxiliary engine fittings. <IMAGE>
Patent GB-2046688-A (GB)
Title: An oar mounting for an inflatable boat
IPC: B63B7/08
Filed: 1979-07-20
Abstract: An oar mounting for an inflatable boat comprises an annular rowlock 2 which can be inserted into a holder 1 attached to an inflatable boat (not shown) and an oar sleeve 3 attached to the oar. The sleeve 3 has a peripheral flange 3' which abuts the rowlock to limit outboard movement of the oar and an aperture 3'' for receiving a pin which locks it to the rowlock. <IMAGE>
Patent GB-2027601-A (GB)
Title: Disposable dental capsule
IPC: A61C5/06
Filed: 1979-08-01
Abstract: The reactive precursors of a dental amalgam are stored in separate chambers of a disposable dental capsule which allows the precursors, mercury and silver powder, to be mixed when desired with no special manipulation of the capsule by the user. The capsule comprises a closed cylindrical container divided into two noncommunicating, internal chambers by a movable, flexible disk. The main, mixing chamber includes a mixing pestle. When placed in a dental amalgamator, the mixing pestle drives the flexible disk to the end of the vessel of the container forcing the mercury to flow around the edges of the disk and to mix with the silver powder, thereby forming the dental amalgam. <IMAGE>
Patent GB-2037270-A (GB)
Title: Screen-printing ink containing a reducible metal oxide
IPC: C09D11/00
Filed: 1979-09-05
Abstract: A screen-printing ink suitable for making thick film circuits and which comprises (i) an "active material", (ii) a vitreous material, and (iii) an organic binder, is characterised by the inclusion of (iv) 1-10 vol.% of at least one metal oxide which, during firing in a neutral or weakly-reducing atmosphere, oxidatively eliminates the organic binder while itself being reduced to a lower valency oxide which is incorporated in the vitreous phase. Exemplified constituents are (i) micronised conductive metals e.g. Cu, Ni; metal hexaborides; dielectric compounds e.g. Al2O3; (ii) a fritted zinc borosilicate or calcium boroaluminate glass; (iii) ethyl cellulose in terpineol; (iv) a cerium oxide or praseodymium oxide. The ink may be printed onto alumina and fired in N2 or N2 + H2.
Patent GB-2039172-A (GB)
Title: Enabling utilisation of full engine power during acceleration in motor vehicles
IPC: B60L50/15
Filed: 1979-11-08
Abstract: A method and a device for enabling utilisation of full engine power during acceleration of motor vehicles equipped with a generator which is driven by the engine of the motor vehicle. Includes an acceleration detector which controls the regulator of the generator such that the supply of current to the excitation winding is entirely or partially interrupted. Hence the generator load is removed and the power can be used to accelerate the motor vehicle. The device for electrically switching-off the generator can be of electro-mechanical or electrical construction. <IMAGE>
Patent GB-2034209-A (GB)
Title: Attaching Razor Blades to Supports
IPC: B21K25/00
Filed: 1979-11-09
Abstract: A support member 3 of metallic or plastics material is placed in a tool cavity against an imperforate blade member 1 of stainless steel, backed by a die 4 having through holes 6. A punch 9 is impacted against the support member, which undergoes plastic deformation and pierces the blade member locally and is extruded through the blade into the holes 6 to form projections which are subsequently riveted over to secure the assembly. <IMAGE>
Patent GB-2063760-A (GB)
Title: Shelves
IPC: B32B21/13
Filed: 1979-11-29
Abstract: A shelf having upper and lower major faces (14, 16), one longitudinally extending edge (12) of the shelf being radiussed in such manner that it merges smoothly with said upper major face (14) and intersects said lower major face (16), and the other longitudinally extending edge (18) of the shelf being radiussed in such manner that it merges smoothly with said lower major face (16) and intersects said upper major face (14), the finish of said upper major face (14) and said one edge (12) being different to the finish of the lower major face (16) and said outer edge (18). <IMAGE>