baber/WOPTO huggingface dataset:
Patent GB-1434062-A (GB)
Title: Purification of carboxylic acids
IPC: C01B32/40
Filed: 1973-11-29
Abstract: 1434062 Purification of carboxylic acids HOECHST AG 29 Nov 1973 [29 Nov 1972] 55349/73 Heading C2C Formic acid is removed from a crude carboxylic acid containing formic acid by treating the crude acid with a carboxylic acid anhydride, or with a compound capable of forming a carboxylic anhydride with a carboxylic acid, or a mixture of two or more such reagents, in the presence of an acidic catalyst comprising a mineral acid, a sulphonic acid, an acid salt, a heterogeneous acidic catalyst or a mixture of these. The crude acid, e.g. acetic or propionic, may be the product of an oxidation; the anhydride or anhydride-forming compound (e.g. ketene or carboxylic acid halide) is preferably one which, in the reaction with formic acid, yields the carboxylic acid already present as the crude acid. Heterogeneous oxidic catalysts, e.g. acidic ion exchangers, activated, bentonites, zeolites and acid-treated montmorillonites and bleaching earths, are preferred; such solid catalysts may be used in fixed or fluid beds for continuous processing of the crude acid. In the process, the formic acid is-decomposed to yield carbon monoxide.
Patent GB-1343967-A (GB)
Title: Self-adaptive welding torch controller
IPC: B23K9/127
Filed: 1971-11-29
Abstract: 1343967 Welding by fusion UNITED STATES ATOMIC ENERGY COMMISSION 29 Nov 1971 [26 Jan 1971] 55403/71 Heading B3R [Also in Division G3] A programmed welding system for moving a torch along a weld groove path is combined with an arrangement for providing automatic self-adaptive control of the torch over the path. As shown a welding head assembly comprises a torch 23 with associated consumable filler wire 26 which is oscillated by a motor 31 across a shaped seam in a workpiece 27. A vertical drive motor 41 is controlled in depedence on the arc voltage from a source 33, as detected by a device 35, through a vertical controller 37 actuating relays K4, K5 at high and low voltage values respectively. The welding head assembly is positioned over the seam by a motor 45 which, initially, on a programmed energization of a relay K 1 traverses the seam and is stopped in response to change of arc voltage when the torch reaches the far wall of the seam.  The energization of a relay K2 by the programmer initiates a motor logic 55. The range of free oscillation of the torch takes place about a central point, identified by a photo-cell arrangement 77-83, through an AND-gate 71 and an exclusive OR-gate 73, and determined by a counter 57 set by switches 61, 65. The counter 57 is filled by pulses from a generator 67 through a gate 69 opened by an output G from the logic 55. The counter is reset by the output of gate 71 and the logic 55 is controlled by gates 71, 73 through inputs C.D.B. The oscillation of the torch is inhibited at the edge of a seam occurring before the completion of a count by an input A from a signal generator 53 responsive to a fall in arc voltage as detected by the device 35. The logic 55 has outputs to an operational amplifier 85 energizing a potentiometer 87 controlling through a power amplifier 89 the rate of movement of the oscillation motor 31. The operation of the welding control system is such that a zig-zag weld can be maintained in contact with one side of a seam only and the torch is raised as the weld proceeds until the seam is filled. It is stated that the torch spacing can be determined by electromagnetic, capacitive or infra-red gauges. The system can be applied to progressive fusion electrical arc welding either in a straight path, to join flat plates, or in a circumferential path to join tubular conduit sections. The bottom of the weld groove may be formed by an insert. The torch may be moved with respect to the workpiece or, fixed, and the workpiece moved. The torch need not be oscillated across the complete width of the weld groove and for thick welds the groove can be filled by partially overlapping weld passes. The control system ensures weld tie-in with at least one of the wall sections of the groove.
Patent GB-1299726-A (GB)
Title: Improvements in jointing or terminating electric cables
Inventor: EDWARDS DEREK REGINALD
IPC: H01R4/62
Filed: 1969-11-15
Abstract: 1299726 Welding by fusion; composite casting BRITISH INSULATED CALLENDER'S CABLES Ltd 12 Nov 1970 [12 Nov 1969] 55413/69 Headings B3F and B3R [Also in Division H2] In jointing or terminating an electric cable, wherein a body of conducting metal is cast around parts of two conductors to be joined, one at least of which conductors is a solid non- circular cross-section conductor 2, the or each conductor 2 has fitted thereon a metal mouldsealing sleeve 1 having an internal shape corresponding to that of the conductor 2 and an external shape formed partly or wholly as a cylinder, a mould 5 cylindrically apertured to receive the cylindrical part of the sleeve is fitted around the conductor parts to be joined, and the mould is filled with molten metal to effect a joint between the conductors and the sleeve or sleeves. The conductor 2 may be joined to a conductor in the form of a terminal rod or lug. When the conductors are of copper, the casting metal may be a solder or brazing metal. When at least one of the conductors is of aluminium the metal is preferably cast by a welding process such as arc (e.g. MIG), flame (preferably oxy-hydrogen), exothermic (e.g. powdered metal melted by oxide reduction reaction). As shown, both conductors are of non-circular cross-section and are provided with taperended mould-sealing sleeves 1 and a mould 5 is provided with a metal entry aperture 6 which when using an exothermic process is positioned uppermost. The mould may be split (as shown), or solid and slipped over the end of one conductor before alignment. The conductors may touch (e.g. when soldering) or be spaced apart (e.g. when arc or flame welding). To obtain adequate access, the ends of the conductors and, preferably, the sleeves are preferably formed so as to present a V-shaped cavity. On completion of the casting, the joint is finally shaped, e.g. by filing or milling. The two sleeves 1 may be bridged by a thin walled sleeve which is of the same metal as the conductors, has an aperture coinciding with the mould aperture 6, forms a metal lining for the mould, remains in situ on completion of the joint, may fit on to steps formed in the facing ends of the sleeves 1, and may be integral with one of the sleeves 1, and, may form in conjunction with the sleeves 1, the mould. In joining a branch conductor to an uncut length of non-circular cross-section conductor, the mould has a pair of apertures receiving longitudinally split sealing sleeves and an aperture for the branch conductor.
Patent GB-1425447-A (GB)
Title: Tool holder means for use in machine tools
IPC: B23B29/24
Filed: 1971-11-30
Abstract: 1425447 Tool holder assembly J L ENG CO Ltd 27 Feb 1973 [30 Nov 1971] 55452/71 Heading B3T A tool holding assembly for use in a machine tool such as a lathe comprises a body 1 which is mountable in the lathe so that the axis of a workpiece is coaxial with the axis 11 of the body, a plurality of circular bores 6 extending parallel to and offset from the axis of the body and a plurality of tool carriers 10 having shanks 7 which are axially adjustable and angularly locatable in the bores 6 the tool shanks 7 being clamped in their selected positions by cotter bolts 14. The body 1 may be of U-shaped configuration with the axis 11 extending through the geometric centre of the U. The holder is located in the lathe with the U body in an inverted position which allows the free passage of swarf during machining. The shanks 7 are provided with flats or slots 17 which are engaged with the cotter bolts and which determines the angular location of the carrier.
Patent GB-1402528-A (GB)
Title: Cross beam for use in an assembly for casting of concrete slabs
IPC: E04G11/48
Filed: 1971-11-30
Abstract: 1402528 Beams for shuttering for floors &c RAPID METAL DEVELOPMENTS Ltd 15 Nov 1972 [30 Nov 1971] 55463/71 Heading E1S A channel-section beam has at least one laterally projecting element 15, (16) at each end, the elements 15, (16) projecting from locations near the web 12 of the channel and being so disposed that there is at least one element on each side 10, 11 of the channel (see Fig. 1, not shown), and each element having a depending terminal lug 15a, (16a). The beam is used in floor shuttering, as a crossbeam supported at its ends on horizontal flanges of main beams, with the lugs 15a, (16a) engaging in holes in such flanges. The assembly of beams is supported on props, and the channels of the cross-beams are filled with wooden inserts to which the form panels are secured, these panels also being supported on lateral edge flanges 13, 14 of the channel sides.
Patent GB-1353452-A (GB)
Title: Method of manufacturing thermally and acoustically insulated  pipes
IPC: G10K11/16
Filed: 1972-12-05
Abstract: 1353452 Insulated pipes KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 5 Dec 1972 [30 Dec 1971] 56069/72 Heading F2P In manufacturing insulated pipes a strip of rigid cellular synthetic resin 22 provided with slits or openings 20 in the longitudinal direction of the pipe is wrapped around the pipe 21 first and one or more layers of synthetic resin material 23, 24 are subsequently applied. In the apparatus shown a paper band 2 supported by a textile web 8 is fed to a shaping device 3 which forms it into a U-shaped configuration. As the band leaves the shaping device cellular synthetic resin forming material, e.g. a polyurethane foam forming mixture is applied by nozzle 4. The material expands and sets in trough 5 and then passes to a trimming and slitting device 6 where it is concurrently slit by cutters or saws (not shown). The paper band and cellular material are drawn through the apparatus by a hauling device 7 and at 10 clean metal pipes which are to be circulated are placed on the set cellular material and are fed with the material by device 11 to a shaping device 12 which wraps the material around the pipe. At 13 powdered cellular synthetic resin material or hollow ceramic or glass balls or an insulating gas are introduced into the spaces formed by the slits opened up by the wrapping operation and immediately thereafter a foil strip 15 consisting of metal laminated with a synthetic resin is applied spirally and with overlapping edges by a winding device 14. This is followed by the application of a synthetic resin outer sheath by means of an extruder 16. Cooling and setting take place in trough 17 and the pipes are cut to length by device 18.
Patent GB-1420036-A (GB)
Title: Mixing apparatus
IPC: B01F5/02
Filed: 1973-12-12
Abstract: 1420036 Mixing apparatus; liquid chromatography HEWLETT-PACKARD GmbH 12 Dec 1973 [28 Dec 1972] 57595/73 Headings B1C and B1H In an apparatus for mixing two separate liquid flows arriving under pressure at inlets 1 and 2, the liquids are forced through parallel apertured screens or grids 5 and 6 spaced apart by a distance not greater than one fifth of the largest lateral dimension of each grid and the resulting mixture formed by the resulting intermeshing jets in the central chamber passes out of outlet 4. The screens may be made from sintered metal and the casing 7, closed by means of a cover plate and bolts 8a, 8b, may have a groove on its inside wall which extends around the mixing chamber and is connected to the outlet 4, as shown. A series of the apparatuses may be connected in cascade manner for improved mixing, i.e. the flow from outlet 4 is divided into two flows these being fed to a second apparatus and so on. The apparatus may be used in an arrangement for the gradient elution in the chromatographic analysis of liquids, wherein two solvents, such as methyl alcohol and octane, are pumped through the apparatus and the proportion of one (methyl alcohol) is increased and the other decreased to maintain the rate of outflow constant. The outflow is then directed to a liquid chromatograph.
Patent GB-1418680-A (GB)
Title: Collar for indicating a lost dog
IPC: A01K27/00
Filed: 1972-12-13
Abstract: 1418680 Lost dog indicating device H A CORBIN E D H CORBIN M D C NICHOLAS and C P CORBIN 12 Dec 1973 [13 Dec 1972] 57607/72 Heading AIM A lamp 1 on a dog collar flashes on and off when activated by an electronic control circuit in a housing 25, which only operates after the lapse of a delay-interval following the pressing of a switch 29, which activates a delay device in the control circuit.
Patent GB-1177349-A (GB)
Title: New Tetrahydro 1,3,5 - Thiadiazine - 2 - Thiones their preparation and use
IPC: C07D285/34
Filed: 1966-12-28
Abstract: 1,177,349. 1, 3, 5-thiadiazine-2-thione compositions. AGRIPAT S.A. 28 Dec., 1966 [29 Dec., 1965], No. 57851/66. Headings A5B and A5E. [Also in Divisions C2, C3 and C5] Compositions effective against bacteria and fungi comprise tetrahydro-1, 3, 5-thiadiazine-2- thiones of the general formula: where Ar is an unsubstituted or substituted aromatic radical, B is a saturated hydrocarbon linking group having 2 or 3 carbon atoms in the chain, R is an aliphatic hydrocarbon radical optionally substituted by OH or COOH, and X is oxygen, sulphur, sulphinyl or sulphonyl in combination with petroleum fractions, alcohols, ethers such as ethylene glycol alkyl ether and surface active substances such as emulsifying agents and other distributing agents and may be applied to skins, leather, wool, wood, cellulose, paper, cotton, glues, printing thickeners made from starch and cellulose derivatives, oils of all types, treatment liquors for paper and textiles, plastics and synthetic materials of all types, in the form of solutions or dispersions in which the active agent is concentrations of at least 0.1 g/litre. Cosmetic and topical compositions effective against bacteria and fungi comprise an ointment, cream or deodorant base together with the above tetrahydro-1, 3, 5-thiadiazine-2-thiones as the active ingredient and may also contain the following known bactericides and fungicides, halogenated salicylic acid alkylamides and anilides, halogenated diphenyl ureas, halogenated benzoxazoles or benzoxazolones, polychlorohydroxydiphenyl methanes, halogendihydroxy diphenyl sulphides, halogenated hydroxydiphenyl ethers, 2-iminoimidazolidines or 2-iminotetrahydropyrimidines, quaternary compounds or dithiocarbamic acid derivatives such as tetramethyl thiuram disulphide. Carriers such as sulphur or zinc stearate can be used as a foundation for powders or as a component of ointment foundations respectively.
Patent GB-1202130-A (GB)
Title: Apparatus for use in replenishing bobbin underthread in lock stitch sewing machine
IPC: D05B57/26
Filed: 1968-12-09
Abstract: 1,202,130. Sewing machines. SINGER CO. 9 Dec., 1968 [12 Dec., 1967], No. 58379/68. Heading D1G. In a lock stitch sewing machine thread is located manually in clamps adjacent a bobbin so that the bobbin can be rewound in situ from the needle supply. The thread is first passed below the throat plate through a slot (not shown) and then moved to lie below a clamping spring 58 on the thread case and then below the arm 141 to a thread clamp 143. In this position it lies across the end flange of the bobbin which is rotated until a slot 96 therein takes the yarn and draws it from the needle 92. Rotation of shaft 142 against the action of spring 160 causes a curved arm 166 to lift a pinion 130 fixed to a bobbin drive shaft 126 into engagement with a gear wheel 102. The top of shaft 126 has a projection which engages with a corresponding slot in the bobbin. A latch arm 174 retains the shaft in the position to which it has been rotated by the swing arm 140.
Patent GB-1285909-A (GB)
Title: Device for forming lugs on sides of hollow components
Inventor: ORLOV NIKOLAI NIKOLAEVICH
IPC: B21D53/00
Filed: 1969-11-29
Abstract: 1285909 Stamping RIZHSKY ELEKTROLAMPOVY ZAVOD 29 Nov 1969 58469/69 Heading B3Q A device for forming projections on the sides of hollow metal articles comprises a stationary support 5, punches 6, 7 secured to the support perpendicular to its axis, and a hollow ported arbor 10 on which is positioned an article 11. The arbor is held on the support by the punches 6, 7 entering the ports 13, 14 and may be displaced laterally relatively to the support. Rotating heads 19, 20 are provided with rollers 21 coaxial with the punches, and are alternately reciprocated to form the projections on the article by the rollers, while the arbor with the article is displaced by the heads relative to the support. A base fitting of an electric lamp or valve, is placed on the arbor 10 and it is centered thereon by the end of a rod 66 entering an aperture in its base as a slide 2 is lowered. A hollow rod 62 slides over the arbor and presses a plate 49, down to the bottom of a recess 4. To avoid excessive loading on the base 11, rods 54 move a cross-piece 53 and sleeve support 52 downwardly. A roller 36 on a lever 32 engages a surface 44 of a cam 42 and is guided into contact with an element 29 by a guide 39 thereby driving the rotary head 19 into contact with the base. The base 11 and arbor 10 are moved laterally by the amount of the clearance 9 so that the rollers 21 and the punch 6 form a projection on the side of the article. As the roller 36 clears the guide 39 it is returned to its original setting by a pusher 59 and springs 12 centralize the arbor. Simultaneously a roller on the end of a lever 33 is guided along the surface 44 of a cam 43 and around a guide 40 so as to clear an element 30. On the upward movement of the slide 2, the roller on the lever 33 engages the element 30 to move the head 20 to form a second projection on the article in a similar manner to the first. Meanwhile the roller 36 moves around the guide 40 so as to clear the element 29. As the rollers move upwardly they engage the cams 42, 43 and pivot them out of their paths against the action of springs. The heads 19, 20 are returned to their inoperative positions by springs and a spring 56 returns the plate 49 to its original position, thereby removing the base from the arbor.
Patent GB-1329115-A (GB)
Title: Organic compounds for use as fuel additives
IPC: C09K23/16
Filed: 1970-12-09
Abstract: 1329115 Maleimide-amines and phosphorus salts thereof INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS and L'ENTERPRISE DE RECHERCHES ET D'ACTIVITIES PETROLIERES-ELF 9 Dec 1970 [10 Dec 1969] 58516/70 Headings C2C and C2P [Also in Division C5] Novel compounds of general Formula I in which each of R 1  and R 2  is H or a monovalent C 1-30  hydrocarbon radical, n is 3-10, m is 1-10, and R<SP>1</SP> is a monovalent C 6-30  aliphatic hydrocarbon radical are prepared by reacting maleic anhydride or one of its substitution derivatives with an appropriate linear polyamine, in an inert solvent. Salts of the compounds I may be formed by reaction with an alkyl phosphoric acid of formula R<SP>11</SP>OP(OH) 2 =O or (R<SP>11</SP>O) 2 P(OH)=O, where R<SP>11</SP> is a monovalent C 8-18  alkyl radical, the total number of OH groups of the acids being not greater than the total number of amine groups of compound I. Compounds I and salts thereof may be used as fuel additives.
Patent GB-1331389-A (GB)
Title: Sucrose/starch sweeteners
IPC: C12P19/18
Filed: 1971-12-16
Abstract: 1331389 Sweeteners K HAYASHIBARA 16 Dec 1971 [16 Dec 1970 23 Dec 1970] 58552/71 Heading A2B [Also in Division C2] Foodstuffs are sweetened with oligosaccharides having a terminal fructose unit and at least two glucose units attached thereto, the latter being connected to each other via a (1-4)-O-α-linkage or a sucrose-starch product, substantially free from reducing sugar, containing as main substituent, one or more of the above oligosaccharides.
Patent GB-1286138-A (GB)
Title: Method of making pile fabrics and the pile fabric made thereby
Inventor: DEWHIRST GEOFFREY WILSON
IPC: D03D39/02
Filed: 1969-12-02
Abstract: 1286138 Axminster carpeting THOMSON SHEPHERD & CO Ltd 2 Dec 1969 58863/69 Headings DIE and D1K Plain or patterned Axminster carpet, with at least two heights of pile, is woven on a loom comprising a yarn gripper and a movable yarn carriage both of whose movement may be increased in alternate pile forming picks to produce a higher pile than is formed in the other pile forming picks. A follower G on lever H engages a cam F on a shaft driven at one sixth loom speed. Lever H is connected by rod I to lever J1 fixed to a shaft K1 carrying plates L1, L2. Plate L1 is connected by rod M to plate 3 which with plate L4 and a lever J2 is fixed to rod K2. Yarn carriage N carries pairs of long and short stops P1, P2; P3, P4; P5, P6; P7, P8 and the long stops are either aligned with apertures R4, R3, R2, Rl in plates L4, L3, L2, L1, so that the relative movement is limited by the short stops or the long stops engage the plates which reduces the movement of the yarn carrier. The movement of the plates is produced by cam F which at the same time moves plates T1 T2 suspended from levers J1, J2, thus instead of long stops W2, W3 on brackets V1, V2 of yarn gripper shaft Y passing through slots in plates Tl, T2 to an extent permitted by short stops W1, W2, the long stops engage the plates T1, T2 to reduce the movement of the gripper. mechanism.
Patent GB-1415560-A (GB)
Title: Process for the production of soft elastic cold setting polyether urefane foams
IPC: C08G18/66
Filed: 1973-12-21
Abstract: 1415560 Polyetherurethane foams BAYER AG 21 Dec 1973 [23 Dec 1972] 59290/73 Heading C3R Soft, elastic, cold setting polyetherurethane foams are prepared in a one-shot process by reacting a tolylene diisocyanate which is free from polymeric isocyanates with a polyether which contains hydroxyl groups in the presence of water and/or an organic blowing agent, an amine catalyst and a silicon containing foam stabilizer, the polyether having a M.W. of 10,000 to 20,000, being 6- to 8-functional and having at least 10% by weight of its hydroxyl groups present as primary hydroxyl groups. A 2- to 5-functional polyether in which at least 10% by weight of the hydroxyl groups present are primary hydroxyl groups may also be added to the reaction mixture. The 6- to 8-functional polyether is preferably a sorbitol-based polyether and is synthesized from reaction mixtures which include ethylene oxide. The foams are useful in the manufacture of upholstery.