baber/WOPTO huggingface dataset:
Patent GB-1336730-A (GB)
Title: Process and apparatus for the separation of a starting mixture with the aid of multistage liquid-liquid extraction
IPC: C07C15/02
Filed: 1970-11-26
Abstract: 1336730 Liquid/liquid extraction SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 26 Nov 1970 [28 Nov 1969] 56238/70 Heading B1F In a process for the separation of components in a liquid starting mixture introduced at 1 into a multistage liquid-liquid extractor 2 using a selective solvent boiling higher than the starting mixture and introduced at 3, in which solvent at least one of the components is more readily soluble and at least one of the other components is less readily than the other component or components, a raffinate phase containing predominantly the less readily soluble component or components is drawn off at 4, an extract phase containing predominantly the more readily soluble component or components is drawn off at 5 and passed to distiller 6, from which distiller two streams 13 and 17 are obtained which contain the less readily soluble component or components from the extract phase 5, stream 13 having a higher boiling range than stream 17, and stream 17 is recycled to the extractor 2 at a stage nearer to the extract discharge 5 than the stage at which starting mixture is supplied from 1. The separation of hydrocarbon is exemplified.
Patent GB-1449895-A (GB)
Title: Safety enclosures or cabins
IPC: F24F8/108
Filed: 1973-12-05
Abstract: 1449895 Clean air cabins; refrigerating SVEADIESEL AB 5 Dec 1973 [7 Dec 1972] 56333/73 Headings F4V and F4H A clean air cabin for use in a stone crushing plant comprises inner and outer enclosures 2, 1 spaced to provide an air space 3, a unit including a fan 6 and at least two spaced filter elements 7, 7<SP>1</SP> for supplying purified air to space 3 and via openings 10, 10<SP>1</SP> into the space within enclosure 2, and an outlet 8 for return of air to the fan filter unit between the elements 7, 7<SP>1</SP>. The enclosures 1, 2 are spaced by vibration-reducing elements 4, 4<SP>1</SP>. The inlets 10, 10<SP>1</SP> and outlet 8 may each include a damper. A pressure relief ventilator 13 communicates with the space within enclosure 2. The enclosure 1 is at least partly lined with heat and sound insulating material 18. The air within enclosure 2 may be cooled by an evaporator and fan unit 16, 17 or heated by electrically heatable material on the inner surfaces of enclosure 1 or by electric radiators on the inner walls of enclosure 2. The evaporator 16 is connected to the other components of a refrigeration circuit which are within an encased unit 14 outside the enclosure 1, an air filter 15 being disposed between unit 14 and the surrounding atmosphere. The cabin includes a door (5, Fig. 4) and window (19) and a control panel (21) from which machines outside the cabin can be operated.
Patent GB-1204169-A (GB)
Title: Multiple image system
IPC: G03H1/16
Filed: 1967-12-13
Abstract: 1,204,169. Multiple image formation. TEXAS INSTRUMENTS Inc. Dec.13, 1967 [Feb.20, 1967], No.56645/67. Heading G2J. Multiple images of a master image are formed by illuminating the master image 10 with monochromatic light, e.g. from a laser 11, focusing the light from the master image on to a multiple image generator 12 in the form of an interference hologram of an array of point sources at positions corresponding to the position of the images to be formed, and so locating a light-sensitive element 14 with respect to the generator 12 that multiple images of the master image 10 are formed thereon when the master image is illuminated by monochromatic light. The formation of the hologram forms the subject of Specification 1, 204, 170, and is preferably a Fourier transform of the array of point sources. In a further embodiment two or more master images 31, 36 are separately or simultaneously illuminated by separate sources of monochromatic light and focused on to respective multiple image generators 33, 38 each having a array of point sources corresponding to - the exact position of its image on the light sensitive element 39. This enables mixed image elements to be formed. The master image 10, and multiple image generator 12 Fig.1 are located at the focal planes of a convex lens 13, and the generator 12 and element 14 are located at the focal planes of a convex lens 16. The light-sensitive element may be a semi-conductor wafer, coated with a photo-resistive material, on a photographic plate.
Patent GB-1162806-A (GB)
Title: Withdrawal Mechanism for Continuous Casting particularly of Steel
IPC: B22D11/128
Filed: 1966-12-19
Abstract: 1,162,806. Continuous casting. BIURO PROJEKTOW PRZEMYSLU HUTNICZEGO "BIPROHUT." 19 Dec., 1966 [20 Dec., 1965], No. 56805/66. Heading B3F. A withdrawal mechanism in a continuous casting machine comprises a pair of jaw members 1 articulated to levers 3 which are pivotably mounted on a slidable frame 4, the end of the levers 3 opposite to the jaws 1 being acted upon by a slidable yoke 6 which is also secured to the frame 4. In operation, the yoke and frame are reciprocated on guides 7 by hydraulic means 5, the actuation of the yoke member on the levers 3 in one direction causes the jaws to grip a continuously formed ingot and withdraw it from the mould with the movement of the yoke and frame. In the opposite direction the yoke pressure on the levers is released and the jaws are freed from the ingot by engagement between pegs 10 and the levers 3, the yoke and frame returning to their initial position. The jaws 1 are exchangeable in order to accommodate ingot sections of different shapes.
Patent GB-1324345-A (GB)
Title: Floating quay or harbour installation
IPC: B63B22/02
Filed: 1971-12-07
Abstract: 1324345 Floating harbours AKERS MEK VERKSTED AS and J M SLOTNAES 7 Dec 1971 [8 Dec 1970] 56809/71 Heading E1H A floating quay or harbour installation comprises at least two emerged bodies 1, 2 which form a V or U shaped harbour basin 5 and are supported on submerged transverse buoyant bodies 4 extending underneath the basin. The bottoms of the emerged bodies 1, 2 may be embedded in the tops of the submerged bodies 4, or these bodies may be interconnected by vertical columns. An entry 10 to the basin is defined between wave baffles 8, 9 at the rear of the installation, which may be anchored at its bow 3 and be provided with propulsion means at its free ends 14. Both the emerged and the submerged bodies are divided by horizontal and vertical bulkheads 12 into ballasting and/or oil or gas storage tanks. The bodies 4 which may be of downwardly open form, may support emerged bodies forming more than one such harbour basin.
Patent GB-1110162-A (GB)
Title: Sealing means for vanes of rotary sliding vane machines
IPC: F01C19/10
Filed: 1964-07-09
Abstract: 1,110,162. Rotary sliding vane machines. K. EICKMANN. July 9, 1964, No.57161/66. Divided out of 1,110,161. Heading F1F. In a rotary sliding vane machine operable as a pump, compressor, motor or I. C. engine, comprising a stationary casing ring, a rotor eccentrically mounted therein having a central part and side walls extending radially outwards thereof, a plurality of radial slots extending across the width of the central part into the side walls and with the inner faces of the side walls sealingly embracing opposite side faces of the casing ring, each radial slot slidably mounts a vane 20, Fig. 1, comprising a central portion 21 having axial extensions 22, 23, with outwardly radial projections 24, 25. The central portion 21 extends across and slides in the slot in the central rotor part and the extensions 22, 23 with the projections 24, 25 slide in the slot extensions in the rotor side walls with faces 39, 40 on the projections sealingly embracing the opposite side faces of the casing ring. At least one face of the vane is formed with grooves 31, 32, 35, 37 mounting sealing gaskets 41, 42, 45, 47 so that the axially extending face of a working chamber of the machine at all times lies within the gaskets to effectively seal the working chamber from an adjacent working chamber. Preferably both sides of the vane are formed with grooves fitted with gaskets, with the axially extending gaskets 45, 47 urged apart and into sealing contact with the side faces of the slots by springs (coil or leaf) or fluidpressure or a combination of both. Each vane 20 is provided with a slipper pivotally mounted on a pin (27), Fig. 2 (not shown) supported in bores 28, 29 in the vane. The gaskets abut or intersect each other and include transverse pins 50 therebetween to prevent the gaskets sliding longitudinally. The gaskets may be made of metal or alternatively of a resilient plastic material in which case the gaskets are formed with lips adjacent the slot sides which enables the springs to be omitted. In a modified construction of vane, the four grooves with the four gaskets on each face of the vane may be replaced by a single substantially elliptical groove with a corresponding gasket. The axially extending grooves 35, 37 may be triangular in cross-section with complementary-shaped gaskets and the radially extending grooves 31, 32 convergingly tapered radially outwards with complementary-shaped gaskets so that on rotation of the rotor centrifugal force urges the gaskets into sealing engagement with the rotor slot.
Patent GB-1388390-A (GB)
Title: Pistons for internal combustion engines
IPC: F02F3/00
Filed: 1971-12-17
Abstract: 1388390 Lining piston ring grooves STANDARD PISTON RING & ENG CO Ltd 23 Nov 1972 [17 Dec 1971] 58700/71 Heading B3A [Also in Division F2] A method of lining a piston ring groove 12, Fig. 3, of a piston 10 comprises machining an undercut 16 with an inclined peripheral surface 18 in a side wall of the groove, fitting a liner 14 having an undercut portion 20 of complementary shape in the groove to abut against the wall, fitting a retaining ring 24 or a plurality of retaining elements in the bottom of the groove, and plastically deforming the retaining ring or elements to cause it to spread so that it bears against the liner to secure it in interlocking relationship with the undercut portion of the groove. The wearing surface w, Fig. 1, of the liner is coated, e.g. with chromium plate, and the liner itself can be made in two halves, Fig. 2 (not shown). Each half is formed at each end with a stepped joint face (22). The retaining ring 24, which is made of a deformable material, has a U-shape so that it can be spread to bear against the liner and fit in undercut bottom portions 30, 32. The spreading is caused by punching progressively around the circumference of the retaining ring. The wearing surface of the liner may be recessed to accommodate a filling of chromium or other wearing material, e.g. molybdenum, ceramic material, deposited by a spraying process or by electrolytic action. Also, the lined groove may be machined to the required width by a final operation. In an alternative embodiment, Fig. 4 (not shown), an undercut is machined in each side wall of the groove to accommodate liners 14 and a common retaining ring.
Patent GB-1417728-A (GB)
Title: Pipe fitting method of manufacture and method of use
IPC: F16L47/28
Filed: 1972-12-21
Abstract: 1417728 Moulding heat expandable piping E I DU PONT DE NEMOURS & CO 21 Dec 1972 [27 Dec 1971 26 June 1972] 59193/72 Heading B5A [Also in Division F2] A pipe fitting comprises a first, dimensionally stable, tubular portion 10 (Fig. 5) and at one end a second, smaller diameter, heat-expandable portion. The fitting is tapered as in Fig. 5, or comprises first and second cylindrical portions joined by a tapered portion 34 (Fig. 9). The fitting is made by forcing part of a heated, cylindrical blank into a reduced diameter mould portion 33 by means of a punch 36. The blank is at a temperature below the glass transition temperature of the constituent material, and is cooled in a water bath before stripping from the mould. The fitting is joined to another pipe 20 (Fig. 5) by inserting the smaller diameter, heatexpandable portion within a circular hole cut in the pipe, and heating the junction internally with a resistance- or induction-heating probe. The heat-expandable portion expands to interlock with the pipe 20, due to its thermoelastic memory. Uses include lining sewer pipes and attaching service lines in situ. Materials include polyethylene, polypropylene, chlorinated PVC, ABS, polyoxymethylene or methylmethacrylate.
Patent GB-1333126-A (GB)
Title: Chloramphenicol palmitate preparations
IPC: C07C67/00
Filed: 1971-12-20
Abstract: 1333126 Chloramphenical palmitate suspensions SUMITOMO CHEMICAL CO Ltd 20 Dec 1971 [22 Dec 1970] 59200/71 Heading A5B An aqueous suspension containing uniform alpha-type crystals of Chloramphenical palmitate is prepared by melting chloramphenical palmitate alone, mixing the melt with an aqueous solution containing one or more dispersing agents at 60-100C, cooling the resulting dispersion to below 30C., and thereafter reheating the cooled dispersion to at least 30C., preferably 40 to 60C. An aqueous solution containing one or more surface active agents may be added to the cooled dispersion prior to reheating. The dispersing agent may be polyvinyl alcohol, polyvinylpyrrolidone, hydroxypropyl cellulose, sodium carboxymethyl cellulose, hydroxypropylmethyl cellulose, gum arabic, carboxy vinyl polymer, polyethylene glycols or propylene glycol and the dispersing agent and/or the: surface active agent may be a sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene castor oil derivative, glyceryl fatty acid ester, sucrose fatty acid ester, alkyl sulphte, dialkysulphosuccinate or fatty acid sarcosinate. A bitterless syrup for oral administration comprises the above suspension and suspending agents, antiseptics, sweetening agents or perfumes.
Patent GB-1434350-A (GB)
Title: Pyridone disperse monoazo dyestuffs
IPC: C07D213/85
Filed: 1972-12-22
Abstract: 1434350 Pyridone azo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 12 Dec 1973 [22 Dec 1972] 59315/72 Heading C4P Novel dyestuffs of the formula  (where X is alkyl, substituted alkyl, phenyl or optionally substituted carbamoyl; Y is H or a substituent; and Z is H or an optionally substituted alkyl, cycloalkyl, aryl or heterocyclic radical or an optionally substituted amino group) and tautomers thereof are prepared by coupling diazotized amines of the formula with appropriate pyridones. The lactones and hydroxy-acids are interconvertible in aqueous medium, the presence of acid favouring the lactones and of alkali the hydroxy-acids. The dyestuffs are valuable for colouring textile materials, especially synthetic textile materials such as polyamides, polyesters and cellulose acetates.
Patent GB-1364475-A (GB)
Title: Recovery of salvageable material from waste material
IPC: B03B9/06
Filed: 1971-12-21
Abstract: 1364475 Recovery of metal and glass from waste material BLACK CLAWSON FIBRECLAIM Inc 21 Dec 1971 [21 Dec 1970] 59479/71 Heading B2H [Also in Division C7] A method of recovering glass and/or metal from a mixture of liquid and solid waste which includes glass, ferrous metal, aluminium, fibrous material and other organic and inorganic components comprises reducing the frangible portion of the waste to a size below a preselected maximum size, extracting said portion and some liquid from the remainder of the mixture, dividing the extracted portion into fractions consisting of (a) the fibrous and organic material and (b) the glass, metal and other inorganic materials, and extracting from the fraction (b) the glass and/or metal components thereof. The mixture of waste material, e.g. municipal refuse, is first fed to a vessel 10 having a rotor 12 rotating above a perforated plate 11. Infrangible solids, e.g. ferrous metal pieces, are removed from the vessel 10 through an outlet 13 and passed to a separator 16 from which any glass or aluminium present are returned to the vessel 10. Water is fed to the vessel 10 through the outlet 13, flowing in the opposite direction to the movement of the infrangible solids. The slurry produced in the vessel 10 is removed therefrom through the perforations in the plate 11. and passes to a centrifugal cleaner 20 which separates the inorganic fraction of the waste from the remainder. The organic fraction may be either recirculated to the vessel 10 or drawn off at 22 for further processing, e.g. to recover the fibrous material therefrom. The inorganic fraction passes to a dewatering device 36, a drying device 38 and a magnetic separator 40. From there the non-magnetic fraction is screened and passed to a cyclone 44 to separate the aluminium. The remainder of the inorganic fraction is then sorted to separate the glass from any ceramics, bone, stone or plastics material and the glass fraction further sorted according to colour. In an embodiment the perforated plate forming the bottom of the vessel 10 is provided with holes of two different sizes. Material passing through the larger holes is recirculated to the vessel 10 after removal of the inorganic fraction by the centrifugal cleaner 20, whilst material passing through the smaller holes is processed to recover the fibrous component therefrom after removal of the inorganic fraction.
Patent GB-1346180-A (GB)
Title: Mobile track-tamping and levelling machine
IPC: E01B29/04
Filed: 1970-12-17
Abstract: 1346180 Correcting level and superelevation of railway track F PLASSER [trading as FRANZ PLASSER BAHNBAUMASCHINEN] 17 Dec 1970 [19 Dec 1969] 59896/70 Heading B7N [Also in Division G1] In an arrangement for correcting the level and superelevation of a railway track in which a pair of light transmitters 6, 6<SP>1</SP> each arranged over a different rail 5, 5<SP>1</SP> of uncorrected track transmit light beams past shadow boards 17, 17<SP>1</SP> at the track correcting position to receivers 15, 151 positioned over corrected track, transverse inclination measuring means are provided for setting the relative positions of the transmitters to the required superelevation. The inclination measuring means 23 is coupled to the transmitters 6, 6<SP>1</SP> and includes a pendulum operating between a pair of electrical contacts which can be set in position to the required superelevation by setting means 10. If the transmitters are not at this super elevation, the pendulum contacts one or other contact to complete a circuit to one or other motor 7, 7<SP>1</SP> controlling the heights of the transmitters and the energized motor is driven until the pendulum is free and the transmitters are at the required superelevation.
Patent GB-1341404-A (GB)
Title: Intermittent grit removal in an electrostatographic reproduction process
IPC: G03G15/02
Filed: 1970-12-21
Abstract: 1341404 Electro-photography XEROX CORP 21 Dec 1970 [29 Dec 1969] 60531/70 Heading G2H [Also in Division B2] Carrier grit is removed from used toner/ carrier developer by preferential deposition of the grit on a suitably charged photo-conductive surface during cascade application of the developer, the surface being that of a reusable xerographic drum or discardable xero-graphic plate. The grit may be removed from a drum in the same manner as residual toner remaining after transfer of a developed image (Fig. not shown).
Patent GB-1317832-A (GB)
IPC: C10G11/18
Filed: 1970-12-21
Abstract: 1317832 Cracking TEXACO DEVELOPMENT CORP 21 Dec 1970 [31 Dec 1969] 60597/70 Heading C5E Virgin gas oil is cracked with a zeolite catalyst in a fluid-catalytic-cracking unit comprising a reactor-separator (16), a regenerator, and two elongated reaction zones (14 and 24), said reactor-separator containing a dense phase and a dilute phase of said catalyst and said elongated reaction zones terminating at said reactorseparator and wherein mixtures of said gas oil and said catalyst are passed through said elongated reaction zones under catalytic cracking conditions to said reactor-separator, and comprising: (a) passing a first portion of a virgin gas oil through the first elongated reaction zone (14); (b) passing a second portion of a virgin gas oil through the second elongated reaction zone (24); (c) maintaining the temperature in the reaction zone of step (a) 20‹ to 200‹ F. higher than the temperature in the reaction zone in step (b); (d) maintaining a conversion in the first elongated reaction zone of step (a) at 0-35 volume per cent lower than in the reaction zone of step (b); and (e) discharging the effluent from said elongated reaction zones into a catalyst phase in said reactor-separator, said effluent comprising vaporous reaction mixture and catalyst.
Patent GB-2002495-A (GB)
Title: Stopcock
IPC: F16K5/06
Filed: 1978-07-20
Abstract: A stopcock for throttling the flow of liquids or gases comprises a spherical plug 16 having a throughbore and being located between two sealing rings 24, 26, and a throttle element 32 provided with a throttling orifice 34. The sealing rings are positioned so that on rotation of the plug to provide a throttling effect they will not be exposed to the direct action of the throttled liquid or gas as will be the edges which define the effective throttling area. The throttle element forms part of or is located immediately adjacent the spherical plug and thus must be shaped to facilitate movement of the plug therewith or relative thereto. To satisfy this requirement the throttle element has an annular region shaped to correspond to the shape of the spherical plug but the area lying radially within the annular region is relieved. If desired the stopcock may be provided with more than one throttle element. The throttling orifice may be substantially pear- shaped. <IMAGE>
Patent GB-2013302-A (GB)
Title: Bicycle chain
IPC: F16G13/06
Filed: 1978-09-28
Abstract: A chain for gearshift bicycles has parallel inside and outside links which are connected at their ends by chain pins (20) passing through holes in the links. The outside links are bent outward between these holes and have diverging chamfers on the inside running in an outward direction. The inside links may also be bent outwards. Offsets on inside and outside links may be symmetrical in relation to a lengthwise axis intersecting the axes where links are joined. The outward directed offsets of the links may make an angle between 30 and 60 DEG  with the undeformed link centre portion and form chamfers inside the links. The undeformed centre section at its narrowest point may be two-thirds of the original link width before offsetting the outer edges. The offsets may have their largest dimension in the centre of the link lengthwise dimension and taper off towards the link eyes where the chain pin holes are located. <IMAGE>
Patent GB-2012127-A (GB)
Title: Fault-current circuit breaker
IPC: H02H3/33
Filed: 1978-10-31
Abstract: An earth-leakage protection system comprises a core-balance transformer with an iron core 5 of low coercive force, and a supply device 1 which applies an alternating current to the secondary winding 8 to premagnetise the core 5. The supply device 1 also supplies an initial charge to an energy store 12 in the form of a capacitor connected to the secondary winding 8. When a fault occurs the voltage across the capacitor 12 rises further, exceeding the threshold of a threshold device 13 and discharging through a tripping device 14 to interrupt the mains supply. The system may be tested by closing a switch 21 to artificially increase the premagnetising alternating current. <IMAGE>
Patent GB-2010273-A (GB)
Title: Derivatives of 2,6-dipnenyl-3,7- dioxabicyclo-[3,3,0]-octane-4,8-dione
IPC: A61K31/34
Filed: 1978-11-02
Abstract: New derivatives of 2,6-diphenyl- 3,7-dioxabicyclo-[3,3,0]-octane-4,8- dione substituted on the phenyl rings have been found to have an anti-tumor, catechol-0-methyltransferase inhibitory and cyclic AMP phosphodiesterase inhibitory activity. The derivatives are prepared by subjecting cinnamic acid derivatives to an oxidative coupling reaction in the presence of an oxidizing agent.
Patent GB-2010109-A (GB)
Title: A fodder mixing wagon
IPC: B01F13/00
Filed: 1978-12-14
Abstract: A discharge opening 19, 19' is provided at each side of the wagon, each opening being associated with a slide 20 actuable to close the opening and a driven inclined conveyor, the slide and conveyor associated with one opening being operated independently of the slide and conveyor associated with the other opening. <IMAGE>