baber/WOPTO huggingface dataset:
Patent GB-1304016-A (GB)
IPC: C02F11/13
Filed: 1969-05-22
Abstract: 1304016 Treating sewage and other biological slurry SIMON-CARVES Ltd 1 May 1970 [22 May 1969] 26151/69 Heading B1B Sewage sludge, or other aqueous biological slurry, is fed through line 11 into evaporator 10 where part of the water is evaporated, preferably at a temperature in the range of 350 to 400F; the treated slurry flows out through line 12 into filter 13, and the filtrate is recycled to the evaporator through lines 14 and 11. The filtered solids are preferably burned in furnace 15 which fires a boiler 16 which supplies at least part of the heat requirement of the evaporator. The steam which leaves the evaporator through line 17 may be condensed by heat exchange with the ingoing sludge in line 11. The evaporator may contain a spiral partition 50 comprised by heat exchange plates heated by steam from boiler 16. This partition gives an extended flowpath for the sludge which is pumped in through line 51, remains in the evaporator for 15 minutes to an hour, and then flows out through line 52. The process may be carried out using a multiple-effect evaporator associated with a series of preheaters, the slurry withdrawn from the last effect being filtered, and the filtrate recycled to the second effect. The filter cake is burned in order to supply heat for the first effect (Fig. 2, not shown).
Patent GB-1317839-A (GB)
Title: Method of producing digitonin
IPC: C07J19/00
Filed: 1971-09-08
Abstract: 1317839 Digitonin INSTITUT FARMAKOKHIMII IMENI KUTATELADZE AKADEMII NAUK GRUZINSKOI SSR 8 Sept 1971 41786/71 Heading C2U Digitonin is obtained from foxglove seeds (Digitalis) by deoiling (e.g. with gasoline or petroleum ether), extracting the de-oiled seeds with an aqueous alcohol (e.g. MeOH or EtOH), evaporating the alcohol from the extract to give an aqueous solution, extracting the latter with carbon tetrachloride to give a purified aqueous solution, extracting the latter with an isopropanol-chloroform mixture and concentrating the organic extract whereupon digitonin crystallizes out and may subsequently be recrystallized from aqueous ethanol or aqueous butanol. Specified foxglove species are D. purpurea L. and D. lanata L. The seeds may be dried and milled before de-oiling.
Patent GB-1322808-A (GB)
Title: Pneumatic valve
IPC: F16K31/122
Filed: 1970-11-30
Abstract: 1322808 Valves DAVIS PNEUMATIC SYSTEMS Ltd 29 Nov 1971 [30 Nov 1970] 56751/70 Heading F2V A valve member 5 is held by a spring 18 in a position in which an outlet 23 is connected to an inlet 13 until the back pressure at the outlet is sufficient to displace the valve members against the spring and connect the outlet 23 to an exhaust port 16. A pressure impulse is thus delivered at the outlet 23 and may be used to operate the piston of a pilot actuator. Removal of inlet pressure allows the valve member to return to its first position.
Patent GB-1325224-A (GB)
Title: Fluidised beds
IPC: B01J8/00
Filed: 1971-04-26
Abstract: 1325224 Evaporation of solutions to obtain dry solids HEAD WRIGHTSON & CO Ltd 19 April 1972 [26 April 1971] 11292/71 Heading B1B Solid particles are obtained from solutions or slurries by spraying the solution or slurry by means of compressed air from nozzle 22 into a bed of particles 18 which is fluidised by heated air introduced through pipe 20 and distribution tubes 21, the fine particles, separated from the effluent gas in cyclone 25, being injected into the bed through pipe 27 at a position so that the returned fines are coated with a portion of the spray in preferance to the larger particles of the bed, and the fines growth rate is encouraged and the bed particle growth rate is discouraged. As shown, the fines are injected into the bed by means of compressed air from nozzle 32; but this arrangement may be replaced by an auger. The required product is discharged from the bed 18 through pipe 28 onto conveyor 29. The evaporation of sodium sulphate solution is referred to.
Patent GB-1326017-A (GB)
Title: Joint arrangements
IPC: F16L23/16
Filed: 1970-11-30
Abstract: 1326017 Pipe couplings JOSEPH LUCAS (INDUSTRIES) Ltd 30 Nov 1970 [9 Dec 1969] 59939/69 Heading F2G In a joint arrangement, metal parts 10, 13 of annular cross-section and having coaxial surfaces of revolutions 12, 14 whose generating lines are mutually inclined are secured together about a ceramic part 15 of annular cross-section which has a flange 16 forming surfaces of revolution 17, 18 corresponding to those on the metal parts such that, during thermal expansion, points on the metal surfaces 12, 14 move along the generating lines of the respective surfaces. In one embodiment, as shown, the ceramic part 15 is tubular, the metal part 10 is a cylinder, the part 13 is a lipped ring and the surfaces of revolution are frusto-conical. Increase in temperature of the joint causes the metal parts 10, 13 to expand radially and axially so that the distance between their surfaces 12, 14 increases but the relative inclination of the surfaces is such that a clamping action is maintained on the flange 16 without undue stress resulting from the expansion. The extent of the inclination between surfaces 12, 14 depends on the amount of expansion in the metal parts and, at sufficiently high temperatures, upon the expansion of the ceramic part also. The frustoconical surfaces are preferably machined smooth to allow ready sliding between the flange 16 and the metal parts. Alternatively layers of resilient packing material (20, 21) (Fig. 4, not shown) are interposed between the ceramic and metal surfaces to absorb the expansion movements. In other embodiments, the metal parts are welded together with inclined frusto-conical surfaces extending radially outwards to clamp therebetween a ceramic part such as an annular member (35) (Fig. 5, not shown) or a frusto-cone (40) (Fig. 6, not shown). In another joint ineluding a ceramic tube, a cylindrical metal ininsert (45) (Fig. 7, not shown) is welded to a metal ring (46) to form a tapered frusto-conical annular cavity in which a flared end of the ceramic tube is held clamped.
Patent GB-1328015-A (GB)
Title: Methods of and apparatus for flash removal
IPC: B23B3/26
Filed: 1971-06-26
Abstract: 1328015 Rotary tool heads CLARKE CHAPMAN-JOHN THOMPSON Ltd 23 June 1972 [26 June 1971] 30070/71 Heading B3T In a method of removing flash from an article formed by friction welding in which two parts of the article are located coaxially, one is held stationary and the other rotated about their common axis and moved axially into engagement with the stationary part to effect a friction weld uniting the parts, a rotary cutter head is provided to remove the flash produced during the weld and which extends transversely to the axis of the ports. The rotary cutter head is mountable on a rotary part 10 of the welding apparatus (not shown) and is rotatable relative thereto and is formed by an annular member 17 which supports an annular member 16 for rotation thereon. A tool carrying arm 13 is pivotally mounted on the member 16 and has a cam follower 22 which engages in a cam groove 19 in the member 17. The members 16 and 17 are provided with peripheral gear teeth 16a, 17a respectively, the numbers of teeth being different so that when the members are driven by gear (not shown) from a motor, relative movement is effected between them and the cam follower 22 traverses the cam groove 19 to cause the radial in feed of the cutting tool 11 as the head rotates around the welded joint to remove the flash.
Patent GB-1331158-A (GB)
Title: 4,4-ethylenedioxy-bisbenzoic acid esters
IPC: C07C69/86
Filed: 1971-09-22
Abstract: 1331158 4,4<SP>1</SP>-(Ethylenedioxy)-bisbenzoic acid esters ASAHI KASEI KOGYO KK 22 Sept 1971 44228/71 Heading C2C 4,4<SP>1</SP>-(Ethylenedioxy)-bisbenzoic acid ester is prepared by reacting a parahydroxybenzoate with ethylene dichloride in the presence of an alkali metal carbonate.
Patent GB-1332457-A (GB)
Title: Mixing apparatus
IPC: B01F29/83
Filed: 1969-12-12
Abstract: 1332457 Rotary container mixers CASCO MIXING MACHINES Ltd 6 Oct 1970 [12 Dec 1969] 60790/69 Heading D1C A mixer has a rotatable, detachable, and tiltable open-top container 3 the whole weight of which is carried on the shaft 18. The container is rotated by a motor 24 adjustably hinged at 22 to vary the driving belt tension. A stirrer 5 is shaped to direct material between it and the container wall; it is horizontally slidable in a guide 37 and pivotable about the axis.
Patent GB-1333748-A (GB)
Title: Flooring
IPC: E04F15/12
Filed: 1970-05-22
Abstract: 1333748 Laying concrete floor finishes STUARTS GRANOLITHIC CO Ltd 19 April 1971 [22 May 1970] 24789/70 Heading E1G The method of laying a crushed-granite or other concrete floor finish on a base 10, in which the water content is reduced between first and second compacting operations by temporarily superposing a sheet of water-permeable material carrying a layer of waterabsorbent material, in order to reduce shrinking and promote a wear-resistant surface, comprises the steps of (a) applying to the base 10 a layer 15 of grout; (b) applying an aggregate/ water/cement mix 16 forming the concrete surface; (c) compacting and levelling the mix 16; (d) covering the mix with a sheet 17 of water-permeable material (e.g. hessian) followed by (e) a layer 18 of water-absorbent material (e.g. cement); (f) removing said sheet 17 and layer 18; (g) compacting and surfacefinishing the partly-dried mix 16; and (h) wet curing the mix 16, e.g. by saturating and covering with hessian or plastics. As described, the floor surface is laid between screed rods fixed to the concrete base 10, and may subsequently be cut to form joints aligned with expansion joints in the base. The description suggests suitable mixes, finishing tools and time intervals.
Patent GB-1335190-A (GB)
Title: Shoe making
IPC: A43D3/02
Filed: 1971-11-26
Abstract: 1335190 Boots &c SHOE & ALLIED TRADES RESEARCH ASSOCIATION 26 Nov 1971 [1 Dec 1970] 57045/70 Heading A3B [Also in Division D1] A last/support 10 (Fig. 1b) for assisting the stitching of a preformed veldt uppers to a runners includes a hinged block 10a, 10b having a plan outline corresponding to the featherline of the shoe and a sole surface 12 having the desired insole contours, the hinge 11 being arranged transversely in the region of the shank to allow pivoting of the heel section 10b in a direction away from the sole surface, the block having a depth substantially less than the depth of the shoe at any point e.g. less than ¢ inch at any point. The support 10 also has a last pin 13. A runner is positioned on the support 10 using a jig 17 (Fig. lc) which includes a block 16 having the same outline as the support 10 and a set of locating pins 24 mounted on brackets 21 fixed to the block 16. The pins 24 are adjustably mounted in slots in the brackets 21 and are fixed in their adjusted positions by knurled nuts 25. In use the support 10 is placed on the jig 17, the last pin 13 engaging a bore 20 in the jig block 16, and the runner is positioned over the support 10 using the locating pins 24. The runner is then secured to the support 10 by means of double sided adhesive tape 27. The support 10 and runner are then removed from the jig 17 and a preformed veldt upper having an outturned flange is placed over the support 10 which is used to support the upper-runner assembly while the out-turned flange is stitched to the runner. The support 10 is then removed from the shoe by pivoting the heel section 10b away from the runner and slipping the toe section 10a from the shoe.
Patent GB-1337818-A (GB)
Title: Fluid cushion supported vehicles
IPC: B60V3/02
Filed: 1971-08-16
Abstract: 1337818 Air cushion vehicle BRITISH HOVERCRAFT CORP Ltd 6 July 1972 [16 Aug 1971] 38292/71 Heading B7K An air cushion vehicle has a cushion barrier including a plurality of rotary pliant endless belts and flaps in sliding contact with the belts. The cushion barrier is a convoluted flexible skirt 17 beneath which the belts are mounted so as to be rotated by friction with the ground when the vehicle moves. The sides of the cushion area 18 are bounded by endless belts 32 extending along the whole length of the vehicle, and leakage of air from the cushion is prevented by flexible flaps (33), Fig. 5 (not shown), held against the belt by cushion pressure. The front of the cushion area is bounded by a plurality of endless belts 19 carried by rollers 23 mounted on pillars 21 having waisted portions which lie between the upper parts of adjacent belts, leakage being prevented by a bead 26 carried by a trailing flap 27; leakage from a similar arrangement at the rear is prevented by a trailing flap (28), Fig. 7 (not shown).
Patent GB-1345032-A (GB)
Title: Optical character recognition system
IPC: G06V10/40
Filed: 1971-01-06
Abstract: 1345032 Character recognition systems INTERNATIONAL COMPUTERS Ltd 4 Jan 1972 [6 Jan 1971] 603/71 Heading G4R In a character recognition system in which a character to be identified is regarded as lying on a matrix of cells, the matrix is examined to determine the positions of certain character features, e.g. horizontals, verticals, and points where two or more lines meet. The features are mapped on another matrix and predetermined groups of adjoining cells of this matrix are examined to provide signals representative of the character and tolerant of malformation of the character. The character, which may be handwritten, is scanned, e.g. by being mounted on a drum rotated beneath photo-cells, the resulting signals passing to a circuit, not described, which thins the character and removes gaps. The character is now regarded as lying on a 15 x 20 cell matrix. The matrix is effectively scanned by a 5 x 5 scanning matrix by passing it through 5 serially connected 20-bit shift registers, the outputs of the last 5 stages of each register being connected to a unit which identifies the features of the character. The features are : lines having a free end, horizontal lines, vertical lines, and points at which 2, 3, 4 or more lines meet, Figs. 2a-2g (not shown). Signals representing the features are mapped on a 15 x 20 feature matrix according to their position in the character matrix. The features tend to be in clusters and to reduce their number the matrix is scanned by a 3 x 3 scanning matrix. Subject to the presence of the same feature in particular areas of the scanning matrix, the number of these features in the whole of the 3 Î 3 matrix is counted. If the number exceeds a certain value a single corresponding feature is mapped in to a matrix at a position corresponding to that of the 3 Î 3 matrix, and the features in that area of the feature matrix currently being scanned by the 3 x 3 matrix are reset. The resulting single feature matrix is examined by means which ignores detailed positional information concerning the features but takes account of the relative positions of the features to provide features mapped on a 5 x 5 matrix. Predetermined groups of adjoining cells of this matrix are examined for the presence of particular features. The examination of groups of cells allows a malformed character to be identified; e.g. the tail of a numeral 9 may appear anywhere in the bottom row of the matrix so a group consisting of the bottom row of cells must be examined for the tail feature. The outputs of the cells of a group are gated together to provide a so-called super-feature if a particular feature is in the group. The various super-features are gated together to identify the character. The gating circuitry for a particular character in volves the positive exclusion of certain superfeatures which must not appear in the character.
Patent GB-1349895-A (GB)
Title: Catalytic asymmetric hydrogenation
IPC: C07F9/50
Filed: 1971-05-26
Abstract: 1349895 Hydrogenation catalysts MONSANTO CO 26 May 1971 17256/71 Heading B1E [Also in Division C2]  A catalyst comprises a solution of a metal compound, the metal being rhodium, iridium, ruthenium, osmium, palladium or platinum, and at least one equivalent of an optically active phosphine or arsine per mole of metal in the solution. The terms "phosphine" and "arsine" as used herein mean PH 3  or AsH 3  or a compound derived by replacement of one or more hydrogen atoms in PH 3  or AsH 3 . The metal compound may be rhodium trichloride hydrate, rhodium tribromide hydrate, rhodium sulphate or a rhodium complex with an olefin. An active form of metallic rhodium which readily gives a rhodium compound in solution may also be used. The phosphine or arsine may have the formula AR<SP>5</SP>R<SP>6</SP>R<SP>7</SP> where A is phosphorus or arsenic, and R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are hydrogen; C 1-12  alkyl or alkoxy; alkyl substituted by one or more of NH 2 , COOH, carbonyl, aryl, NO 2  or C 1-4  alkoxy; aryl; aryloxy; phenyl substituted by one or more of alkoxy, alkyl, OH, aryloxy, NH 2  or NO 2  and the number of substituents being less than 3; cycloalkyl having at least 3C; substituted cycloalkyl; pyrrolyl; thienyl; furyl; pyridyl; piperidyl or 3-cholesteryl. Preferred phosphines are methylphenyl-o-anisyl phosphine and methyl cyclohexyl-o-anisyl phosphine.
Patent GB-1350947-A (GB)
Title: Water softeners
IPC: B01J49/00
Filed: 1971-07-30
Abstract: 1350947 Ion exchanger HOLZER PATENT AG 30 July 1971 [10 Aug 1970] 35947/71 Heading B1J A water softener comprises a container 1 for regenerant (common salt) integrally formed with two chambers 2, 2' for ion exchange material connected in series by at least one duct 6 and arranged symmetrically on opposite sides of the container 1. In operation, water to be softened enters at 3 and flows through chambers 2, 2' in series via duct 6 and leaves by outlet 5. The ion exchange material is regenerated by introducing water at 4 through lip valve 24 to flow through the salt in container 1 and, via lip valve 11 through the chambers 2, 2' and outlet 5. The softener is formed from sections of plastics material which are welded together at 7, 8.
Patent GB-1351602-A (GB)
Title: Hose pipes
IPC: F16L11/08
Filed: 1970-04-15
Abstract: 1351602 Flexible hoses DUNLOP HOLDINGS Ltd 19 April 1971 [15 April 1970] 17855/70 Heading F2P A hose comprises a first inner layer comprising layers 1 and 3 of hard, abrasion resistant elastomeric material and fabric breaker layers 2 and 4, and a second inner layer 5 of relatively soft resilient elastomeric material. In the embodiments described the layers 1, 3 are of hard rubber of approximately 75 degrees Shore hardness, and the layer 5 is of soft rubber of 45-50 degrees Shore hardness. The layer 5 is surrounded by layers of textile reinforcement 7, which may be of natural or synthetic fibres or metal cords, and another breaker layer 8 which forms a base for ring reinforcements 11, as described in Specification 1,339,722, which each comprise U-section rings of aluminium alloy that are filled with resinous material 10 containing reinforcing glass fibre filaments. To form a buoyant hose microcellular sponge layers 13, 15 are provided and the hose is covered with alternate layers 16 to 19 of fabric and rubber. In an alternative embodiment (Fig. 2, not shown) a helical steel wire winding (20) is used as a reinforcement structure instead of the rings 11. In a non self-floating construction (Fig. 3, not shown) the microcellular sponge layers 15 are omitted and the layer 13 replaced by a normal rubber filler (21). The ends of the hose are connected to end fittings (Fig. 4, not shown) which each comprise a flange (22) welded to a nipple (23) by winding steel wire (27) between the textile layers 7. A replaceable lining tube (30) which may be of manganese steel or plastics material is provided, the lining tube being longer than the nipple so as to protect the joint between the nipple and the hose.
Patent GB-1353119-A (GB)
Title: Isomerization of terpenes
IPC: C07C5/25
Filed: 1972-03-06
Abstract: 1353119 Isomerizing terpenes ARIZONA CHEMICAL CO 6 March 1972 10345/72 Heading C5E A terpene-containing feed is isomerized at 120-200‹ C. in the presence of 0À1-10% by wt., based on the terpene, of a zeolite molecular sieve catalyst of the 13X type containing a sodium, potassium or lithium cation. Turpentine and/or α- or #-pinene can be isomerized to dipentene and terpinolene, and dipentene to terpinolene. The catalyst may be activated by treatment with 1-15 times its own volume of water, repeated up to 10 times, followed by drying at 150-600‹ C. until the catalyst moisture content is 4À3-10À5%. The isomerization may be carried out for 1-15 hours and preferably to at least 90% completion. In the examples, camphene and other terpenes are byproducts of the reactions.
Patent GB-1355647-A (GB)
Title: Liquid-fuel injection system
IPC: F02C7/22
Filed: 1970-05-14
Abstract: 1355647 Fuel injection system with ultrasonic atomizer PLESSEY CO Ltd 14 June 1971 [14 May 1970] 23355/70 Heading F4T A liquid fuel injection system for a burner or gas turbine engine comprises a swirl chamber 1 which receives liquid fuel through tangential ports 5 and terminates in a reduced diameter outlet orifice 4, and a stepped diameter ultrasonic vibrator element 7, 18 in the chamber whose stem 18 co-operates with the orifice 4 to form an annular outlet, such that the ultrasonic vibrator assists atomization of the fuel when the rate of fuel supply is insufficient for adequate swirl atomization and when the rate of fuel supply is sufficient for adequate swirl atomization the hollow core of the vortical fuel flow clears the tip of the transformer stem 18. In the embodiment shown a pressure sensitive switch 16 controls a switch over valve 21 to supply fuel to the ports 5 when the fuel supply pressure is sufficiently high for effective swirl atomization and to supply fuel to a bore 19 in the vibrator element and to simultaneously activate the vibrator when the fuel pressure is low. In an alternative embodiment the valve 21 and bore 19 are omitted and the fuel is continuously supplied through the ports 5, the vibrator element being activated when the fuel pressure falls below a certain level. The vibrator element is driven by a piezoelectric element 10 energized by an ultrasonic oscillator 12.
Patent ID-29693-A (ID)
Inventor: BETTINA MOCKEL
IPC: C12N15/09
Filed: 2001-03-22
Abstract: Isolated polynucleotide comprises the dapC gene from coryneform bacteria, is new. Isolated polynucleotide (I): (i) is at least 70% identical with a sequence that encodes a protein (II) comprising a 367 amino acid (aa) sequence as given in the specification; (ii) encodes a polypeptide at least 70% identical with (II); (iii) is complementary to (i) or (ii); or (iv) contains at least 15 consecutive nucleotides from (i)-(iii). Independent claims are also included for the following: (1) a vector (III) containing (I); (2) a coryneform bacterial host cell (VI) that contains (III), or has the zwaI gene; (3) the production of L-aa, especially L-lysine, by growing bacteria in which at least the dapC gene is amplified; (4) DNA (V), from coryneform bacteria which encodes an N-succinyl-aminoketopimelate-transaminase and whose sequence is as (2) except that 209Pro is replaced by some other aa; and (5) coryneform bacteria (V) containing (V).