baber/WOPTO huggingface dataset:
Patent GB-1357780-A (GB)
Title: Process for purification of acrylic acid
IPC: C07C51/48
Filed: 1971-12-23
Abstract: 1357780 Acrylic acid NIPPON SHOKUBAI KAGAKU KOGYO CO Ltd 23 Dec 1971 [26 Dec 1970] 59919/71 Heading C2C Acrylic acid is purified by extracting the aqueous solution formed by the gas phase catalytic oxidation of propylene or acrolein with an extraction solvent, distilling to separate the extraction solvent, distilling a mixture of acrylic and acetic acid from the remaining portion of the extract, the acrylic acid content of the distillate being adjusted to 10 to 70% by weight, recycling the distillate to the extraction step and removing acrylic acid substantially free of acetic acid from the rectification step. The aqueous solution of acrylic acid may have been condensed from the catalytic oxidation and stripped from low boiling compounds, and the distillate may be recycled. An example describes the use of a condenser followed by a low-boiling point compound stripping column, an extraction column into which is introduced the solvent, a distillation column and a rectification column. Recycling and separation of the solvent-water mixture followed by distillate in a solvent recovery column is also carried out.
Patent GB-1294363-A (GB)
Title: A method for the dot-by-dot and line-by-line rastered recording of picture signals obtained by scanning half-tone pictures
IPC: H04N1/405
Filed: 1969-12-17
Abstract: 1294363 Half-tone image reproduction DRING RUDOLF HELL 17 Dec 1969 [10 Jan 1969] 61496/69 Heading H4F A half-tone picture is reproduced by combining picture signals obtained by line-by-line scanning of an original 2 rotating on a drum 1 with raster signals corresponding to a raster rotated at one angle relative to the scanning direction of the original having a rational tangent, the raster information being obtained at a finer resolution than the information contained in the picture signal. In the embodiment shown the raster signals are obtained by a preliminary scanning of a vignetted raster screen mounted on the scanning drum 1, the principal raster direction lying at an angle of 14À04 degrees (tan<SP>-1</SP> “) to the scanning direction, and the raster scanning resolution being such that four lines correspond to the width of a single picture line 7 as scanned across the original 2. The raster signals are stored in digital electronic data stores 8-11 and are read out under the control of a sequence switch 14 controlled by a generator 12 as picture signals are obtained from the original 2. Each picture line is superimposed on the four corresponding raster lines, which are then applied to recording lamps 25-28 and connected, via lenses 29-32 and 37 and tight fibre bundles 33-36, into an image on a rotating recording sheet 2<SP>1</SP>. If the original 2 is a colour half-tone picture, three separate colour component signals are obtained and treated in the manner described. Rasters having different periodicities and rotated through different angles relative to the scanning direction are used for the different colours. In an alternative arrangement the raster signal is obtained, not by scanning a vignetted raster, but by superimposing appropriately phased triangular waves, and in this case the recording is produced by scanning the beam of a cathode-ray tube laterally across each picture line.
Patent GB-729008-A (GB)
Abstract: 729,008. Gyroscopic apparatus. ROECH, A., [trading as WAGNER, F. [Firm of],]. July 2, 1953 [Oct. 29, 1952], No. 18309/53. Class 97 (3). In the gyroscopic apparatus shown, the rotor 4 has oppositely extending shaft portions 5 and is driven by six rollers, three mounted on each side of the rotor so as to contact the two shaft portions. Of the rollers 6, 7 and 8 which constitute each set of three rollers only the rollers 6 and 8 are shown; the roller 6 is mounted in a housing 10 to one side of the shaft portions, while the rollers 7, 8 are mounted in a common housing 9 on the diametrically opposite side of the shaft portion. Roller 6 contacts the shaft portion throughout its periphery, and rollers 7, 8 are in axially displaced and overlapping relation so as to form a substantially V-shaped cradle for receiving the shaft portion. The housings 9, 10 are semi-cylindrical and separated by an air space 25 and springs 29 co-operating with the heads 28 of screws 26 threaded in the housing 9 urge the housings 9, 10 together so as to maintain contact between the shaft portion and the rollers and thus automatically take up wear therein. Wedge-shaped slides 32 are adjustably mounted in the rotor case 1 to prevent play between the case and the housings 9, 10. Each roller is mounted in its housing by bearings 14, 15. The outer race of each bearing 15 is held in place by a snap ring 19, engaging an annular groove in an apertured ring 17, and by an annular ring 16 which is engaged by a threaded end plate of the casing 1; a snap ring 21 engaging a groove in roller shaft portion 13 holds fast the inner race of this bearing 15. The inner race of each bearing 14 is held fast by a snap ring 20, but the outer race thereof is freely slidable in the housing to allow for expansion and contraction due to temperature change. The rollers are driven by compressed air which enters the casing 1 through hollow axles which mount it in a gimbal and apertures in a cover for an annular groove 45 in the outer wall of the casing 1. From this groove, air passes via grooves 46, 40 in the casing to apertures 39 in the roller housings and thence through apertures 42 in those housings to nozzles 36, 38 in the rollers, the axis of each aperture 42 being inclined to the corresponding roller so that the latter is rotated. Air leaves the casing through the apertured rings 17 and apertures 44 in the end plates. In an alternative form, each roller is electrically driven and is arranged to constitute the rotor of an electric motor.
Patent GB-739314-A (GB)
Abstract: 739,314. Jet propulsion plant. AKT.-GES. FUR TECHNISCHE STUDIEN. Nov. 9, 1953 [Nov. 10, 1952], No. 30993/53. Class 110 (3). [Also in Group XXXIII] In a multi-jet propulsion plant comprising a jet turbine engine and a jet propulsion engine dependent for its power on the jet turbine engine, the dependent engine has a ducted fan driven by working medium circulating in a closed circuit including a compressor, a heater arranged in the gas stream of the jet turbine engine, a turbine and a cooler. In the arrangement shown, a ducted fan 5 which discharges through a propelling nozzle 10 is driven by a closed circuit gas turbine plant comprising a compressor 6, an exhaust gas heat exchanger 15, heater tubes 7, a turbine 8 and a cooling system 9. The heater tubes 7 are arranged in the combustion chamber 12 of a gas turbine jet propulsion unit 4. The ducted fan 5 sucks air from the boundary layer on the wing 2 of the aircraft through slots 16. If desired, the heater 7 may be located in a reheat chamber disposed after the turbine 13. Air or a gas of lower molecular weight, e.g. helium, may be used in the closed circuit. The cooler 9 may be exposed to the wind on the outer shell of the aircraft, or in the intake of either of the jet propulsion engines 3,4. The heat exchanger 15 may be arranged around the axis of the engine 3 between the compressor 6 and turbine 8. If desired, the heat exchanger 15 may be dispensed with.
Patent GB-2001549-A (GB)
Title: Venturi scrubber
IPC: B01D47/10
Filed: 1978-06-28
Abstract: A venturi scrubber for removing fine particulate matter from a gas flowing through a conduit, comprising a venturi section 10 inserted into the conduit, and having a plenum 20 surrounding the throat portion of the venturi. Means 30 are provided for introducing water flow at high pressure into the plenum, and through a plurality of spaced orifices 38 around the venturi at the throat. A hollow structural means 34 is positioned inside the venturi, longitudinally spaced opposite the plenum, and connected to the plenum. The hollow structure divides the cross-sectional area of the throat into at least one double-walled space, through which the gas flows. A plurality of spaced second orifices 42 are in the hollow structure, so that the pressurized water will flow outwardly from these orifices and through the wall of gas flowing through the double-walled space. The internal structure can be a circular pipe inside of a circular venturi with circumferentially-spaced orifices. It can also be a rectangular venturi with a narrow rectangular conduit connected between and through opposite walls of the throat portion of the venturi. There are second orifices on the two walls of the dividing conduit opposite first orifices on the two faces of the throat portion of the venturi. <IMAGE>
Patent GB-2010883-A (GB)
Title: Photographic light-sensitive compounds and sheets for the colour diffusion-transfer process
IPC: G03C8/00
Filed: 1978-10-30
Abstract: A photographic light-sensitive sheet for the colour diffusion-transfer process which comprises a support having thereon at least one light- sensitive silver halide emulsion layer having associated therewith a compound (dye image providing material) represented by the following general formula:   <IMAGE> wherein Q<1> represents a hydrogen or halogen atom, a specified substituted sulfamoyl, sulfonyl, carboxyl or amido group; Q<2> is at the 5- or the 8-position to the hydroxy group and is a hydroxy group or a group -NHCOR or -NHSO2R (R is H or alkyl); R<1a> is an alkylene group having 2 or more carbon atoms; R<2a> is an alkyl group; Y is a moiety (e.g. an N-substituted sulfamoyl group) which releases or provides as a result of alkaline development processing an azo dye having a different diffusibility from the compound; m, n, p and q each is 0 or 1; J is a divalent sulfonyl or carbonyl group; Z is hydrogen or a (substituted) alkyl group; X<1> represents a divalent bonding group represented by the formula  -A1-(L)n-(A2)p- wherein A1 and A2 are the same or different and each is an alkylene or arylene group; L is a divalent oxy, carbonyl, carboxyamido, a carbamoyl, sulfonamide, sulfamoyl, sulfinyl or sulfonyl group; G is a hydroxyl group or a salt thereof, or a hydrolyzable acyloxy group   <IMAGE> wherein E is a (substituted) alkyl or aryl. 52 specific compounds of that formula are given. The compounds form, on alkaline oxidation, magenta dye of good light- fastness. Methods of synthesis of the compounds from intermediates are described.
Patent GB-2034749-A (GB)
Title: Method of Treating Coal to Reduce Total Sulfur Content
IPC: C10L9/02
Filed: 1978-11-09
Abstract: Coal is treated to reduce the total sulfur content by crushing and sizing the coal to a substantially homogenous size, heating the coal in a solution of sodium chloride or of hydrogen peroxide and sodium chloride, holding the coal in the heated solution for a period of time, removing the coal from the solution, and washing the coal with hot water.
Patent GB-2035209-A (GB)
Title: Removing foreign substances from plates in offset printing machines
IPC: B41F35/02
Filed: 1978-11-15
Abstract: A retractable cutter 6 is arranged in the passage of each printing plate in a multi-colour offset machine to remove clogged foreign substances from their surfaces. Each cutter 6 can be moved transversely to the plate, i.e. parallel to the axis of rotation thereof, and the width of each cutter is at least equal to the width of a regulated ink zone; each cutter is provided with moving, positioning and stopping means activated by remote control, so that it can operate on a selected area where a clog has been located. <IMAGE>
Patent GB-2034772-A (GB)
Title: Apparatus for Chopping Fibres
IPC: D01G1/04
Filed: 1978-11-20
Abstract: For chopping fibres, e.g. strands of glass fibres, to desired lengths, and in particular for chopping different types of glass fibre simultaneously to different respective lengths, the apparatus comprises a rotary cutting cylinder (10) with cutting blades (21) spaced around its periphery and means for supplying fibres oriented at right angles to the cutting cylinder axis, wherein the uniform spacing between the cutting blades (21) in one portion (10a) of the length of the cutting cylinder is smaller than the uniform spacing between the blades in another portion (10b) of its length, so that fibres supplied to the first portion are chopped to a smaller length than fibres supplied to the other portion. The blades (21) may extend through both portions of the cutting cylinder (10) and the different spacing may then be obtained by cutting away or grinding down the cutting edges of a proportion of the blades in the second portion of the cylinder. The means for supplying the fibres may comprise a plurality of tubes with air-entrainment devices therein. <IMAGE>
Patent GB-2014782-A (GB)
Title: Improvements in or relating to ionization smoke detectors
IPC: G08B17/11
Filed: 1979-01-02
Abstract: In ionization smoke detectors employing an inner chamber within an outer chamber, defined by electrodes 1, 5 and 7, and a radiation source, the entry of undesirable polarity ions is inhibited by the provision of an outermost guard electrode (9, 9'), e.g. in the form of an annular ring, as shown, or as a pin structure of a conductive coating on an insulating housing member. In operation the guard electrode 9' may be connected to the same potential as the inner electrode 1. A stainless steel mesh screen M may be fitted inside the protective cover 8. An operating circuit is disclosed, Fig. 2 (not shown). <IMAGE>
Patent GB-2014366-A (GB)
Title: Permanent magnet, method of fabricating the same and apparatus for carrying out the method
IPC: H01F7/02
Filed: 1979-01-12
Abstract: A polyhedral permanent magnet 4 has one face 2 polarized as an N- or S- pole and all the other faces 3 polarized as S- or N-poles. For magnetizing the magnetic material in this manner, a magnetic field is applied with lines of force 6 extending to the one face 2 from the other faces 3, in a cavity of shape conforming to the body of magnetic material. <IMAGE>
Patent GB-2013949-A (GB)
Title: Monitoring of running machines
IPC: F16P3/14
Filed: 1979-01-29
Abstract: A safety device for the automatic monitoring of a running machine comprises a first signal transmitter (1), which is controllable by a moving machine component and/or moving work pieces and emits a first signal. A member (2) is connected to receive the said first signal and is responsive to an unacceptable change in duration and/or frequency of the said first signal to provide a failure signal. A manually activatable second signal transmitter (7) is connected to the member (2) for transmitting thereto a second signal simulating the said first signal. A switching member (3) is connected to the member (2) and has a timer (4) and a switch (5), the switching member serving to produce an output signal during the presence of a failure signal coming from the member (2) and upon completion of the time predetermined by the timer (4). <IMAGE>
Patent GB-2017019-A (GB)
Title: Braced-tread radial cord carcass tyre
IPC: B60C9/20
Filed: 1979-03-20
Abstract: A known radial cord carcass tyre has a breaker structure comprising three layers of parallel cord fabric superimposed upon one another and having their cords laid in different directions relative to the mid-circumferential plane of the tyre to provide a so-called triangulated belt. One, preferably the radially innermost, layer of the three is high-angled (i.e. its cords make an angle of approximately 60 DEG  to 70 DEG  with said plane). To remove disadvantages in the known tyre, the breaker structure of the present tyre has, instead of the high-angled layer, two high-angled, axially separated strips 7,7' and an additional (radially outermost) layer of parallel cord fabric, its cords being laid at from 0 DEG  to 10 DEG to said plane. <IMAGE>
Patent GB-2045649-A (GB)
Title: Method of making metal gaskets
IPC: B21D53/18
Filed: 1979-04-05
Abstract: A method of forming flanged metal gasket elements from a predetermined length of metal tubing 10 comprises forming and severing a predetermined length of the tubing to produce a pair of walls 12, 16 which join one another at an angle. A flat washer 14 may first be severed from tube 10 and then the wall 16 formed in the washer. Using a thin-walled tube, a flange may first be formed on the tube, then the tube cut. Using a thick walled tube a portion of wall may be cut away leaving a flange, then the reduced diameter part of the wall cut, or a narrow portion may be cut out of the tube wall leaving a flange which is bent down parallel to the tube axis, then the full-diameter portion of the tube may be cut to form a flange and tube. Portion 16 of the element may be inserted in an aperture in an asbestos gasket and portion 16 then bent to grip the gasket against flange 14. <IMAGE>
Patent GB-2019110-A (GB)
Title: Magnetically driven machine
IPC: H02K53/00
Filed: 1979-04-11
Abstract: A magnetic machine is constituted from a stator and a rotor, wherein generally curvilinear shaped magnets 1 are housed in the stator with one end of each magnet close to the rotor 4 and the opposite end separated therefrom, all the poles of one polarity of these magnets being situated in the totality of the concave zones of the magnets and the unlike poles in the convex zones of said magnets, the ends of these magnets close to the rotor being situated so that each magnet covers, with respect to the centre of the machine, the geometric centre of the preceding magnet, the magnets of the rotor having magnetic polarities in a similar or opposite arrangement to that of the magnets of the stator, the rotating movement of the rotor being produced by the tendency of the geometric centres 3 of its magnets to be placed in alignment with the geometric centres 2 of the magnets of the stator. <IMAGE>
Patent GB-2051221-A (GB)
Title: Improvements relating to sliding clasp fasteners.
IPC: A44B19/30
Filed: 1979-06-14
Abstract: Tag (5) of a locking slider retracts a prong (19) from fastener elements near the base of one arm of the Y- channel. Prong (19) is the end portion of an S-shaped tongue (5) projecting from one end of a channel-shaped cap (6). The cap is a snap fit onto pillars (12, 14) at the ends of upper shield (2) and tongue (8) lies mostly within one cap channel, prong (19) projecting down through aperture (20) in the upper shield offset from the centre line. Curved root (17) spring-urges prong (19) into the locking position. Tag (5) retracts the prong before engaging notches (7) in the side- flanges of cap (6) and moving the slider. Projection of prong (19) is limited by shoulder (22) on the tongue which abuts upper shield (2). <IMAGE>
Patent GB-2052205-A (GB)
Title: Monitoring roadway profiles
IPC: B61L23/04
Filed: 1979-06-29
Abstract: A method of monitoring a roadway profile, for example in a mine, with respect to a preselected path (3) extending along the roadway (1) comprising making visual references (A-D, B-B', C-C'), for example with poles, at a preselected location across the roadway, recording the visual references with visual recording means, traversing the visual recording means along the path to record the roadway profile and visually reproducing the recording on a screen, the recording being viewed in association with an overlay adapted to coincide with the visual references on the screen simultaneously with the reproduced recording of the roadway profile. The visual references are so chosen as to define the required clearance for all vehicles using the mine roadway. <IMAGE>
Patent GB-2026595-A (GB)
Title: Two-part snap fastener
IPC: A44C5/20
Filed: 1979-08-01
Abstract: A two-part snap fastener primarily intended for fastening the ends of a necklace has a first box-like part (10) housing a U-shaped leaf spring (13), the ends of which are directed towards an open end of the box-like part and are provided with hook members (19). A second part (11) of the fastener has a pair of arcuate guide edges (22) which engage the hook members and force them inwardly as the first and second parts are pushed together. The resiliently biased hook members (19) then spring apart into fastening engagement with latch parts (23) provided at the ends of the guide surfaces.The hook members can be released by manual pressure on projecting portions (18) of the leaf spring (13). <IMAGE>
Patent GB-2056394-A (GB)
Title: Conveyor with pivotable article-engaging members
IPC: B65G19/26
Filed: 1979-08-18
Abstract: A conveyor device is provided for the intermittent movement of articles between various operating stages. The conveyor (2) carries pivotally mounted members (19) which incorporate lugs    (7) able to engage articles (14) to be moved by the conveyor along a support table (1). At one end the member (19) carries a roller (24) which runs along a rail (26). Steps (29) in the rail allow the roller (24) to drop to a new level or to be raised to a higher level thus causing the attitude of the lug (7) to be changed from an article engaging attitude to an article non-engaging attitude. <IMAGE>
Patent GB-2034576-A (GB)
Title: Process for aromatizing food substrates
IPC: A23L27/00
Filed: 1979-10-08
Abstract: Dry water-soluble particles obtained by drying aqueous solutions of vegetable materials and having a microporous structure wherein the most probable pore radius is less than 150 ANGSTROM . are contacted with aromatic volatiles in order to adsorb aromas. The resulting aromatized particles are combined at a low level and packaged with food substrates such as soluble powders or roasted vegetable material. The packaged product will upon initial opening and subsequent in-use openings provide a readily apparent and stable headspace aroma. Suitable microporous particles may be made by spraying an aqueous extract into liquid nitrogen or anhydrous ethanol. The invention is exemplified by instant tea and coffee, and powdered fruit juices.
Patent GB-2040074-A (GB)
Title: Laser beam machining
IPC: G02B7/182
Filed: 1979-12-28
Abstract: Apparatus machines material by laser beams eg for cutting welding or engraving. It includes a numerical control system for coordinates of a high- precision guide system 38 and a laser beam source (1) having a telescopic system (2) outside the material (13) to be machined so that the highly reflective part of the laser radiation is guided from the source (1) via deflecting mirrors to a laser cutting head under units (12, 21 ). A first measuring means (11), a first setting element (17), an automatically adjustable adjusting mirror (22) and a second setting element (18) are disposed in the zone of the source (1) and are connected to a second measuring means (12), which contains a measuring orifice (21) locked on the high- precision guide system (38) by a voltage U1 (9). Also provided are a measured value voltage device (3), a first amplifier (4), a first controller (6) of a limit value adjustment, and a second amplifier (5) connected to controller (6) by an external guide voltage. <IMAGE>
Patent GB-2040570-A (GB)
Title: Electric double layer capacitor
IPC: H01G11/04
Filed: 1980-01-09
Abstract: An electric double layer capacitor comprising a pair of polarization electrodes and an electrolyte disposed in-between and utilizing an electric double layer formed at the interface between the polarization electrodes and the electrolyte, wherein the polarization electrodes comprise a carbon electrode material and polyvinylpyrrolidone as a binder thereof; and therefore adherence, conductivity and a molding characteristic of the carbon electrode material are increased thereby improving characteristics as the capacitive device and reliability of the electric double layer capacitor.
Patent GB-2046633-A (GB)
Title: Electro-filters
IPC: B03C3/60
Filed: 1980-01-22
Abstract: The steel collecting electrodes and optionally other parts, of electro-filters (electrostatic precipitators) have a coating of a zinc-containing layer which provides good resistance to corrosion, and greatly prolongs the electrode life. The layer may be applied as a paint containing zinc powder, or by thermal plating of metallic zinc or an alloy thereof.