baber/WOPTO huggingface dataset:
Patent GB-1054745-A (GB)
IPC: C01B7/19
Abstract: 1,054,745. Hydrogen fluoride. HALCON INTERNATIONAL Inc. Feb. 13, 1964 [Feb. 13, 1963], No. 6067/64. Heading C1A. Anhydrous hydrogen fluoride is recovered by forming a two-phase mixture by contacting aqueous hydrogen fluoride with an immiscible, oxygenated, organic liquid, and distilling hydrogen fluoride from the organic liquid phase. Water may be removed from the aqueous phase to reform the azeotrope which is recycled to the contact step. The organic liquid may he cyclohexanol, methyl isobutyl ketone, methyl isopropyl ketone, n-butanol and nhexanol. Mixing with cyclohexanol may be achieved in a simple mixer, or in a multi-stage reaction column; or vapours containing hydrogen fluoride, water, and cyclohexanol may be mixed and condensed; or a liquid cyclohexanol stream may be contacted with an aqueous, hydrogen fluoride vapour. A dilute, aqueous, hydrofluoric acid mixture is passed via line 10 into column 12 where distillation is carried out at atmospheric pressure to yield an azeotrope containing 38% hydrogen fluoride, and an overhead containing water which is taken out via line 13 and may be further distilled to recover any cyclohexanol. The azeotrope from column 12 is passed via line 14 to liquid-liquid contactor/separator 17 together with recycled cyclohexanol from line 16 amounting to 5À6 times the weight of hydrogen fluoride in the azeotrope fed. Two liquid phases are formed. The cyclohexanol phase, containing 75% cyclohexanol, 12% hydrogen fluoride and 13% water, is passed to hydrogen fluoride column 19, where a hydrogen fluoride stream is taken overhead and passed to optional final drying column 21, wherein dry hydrogen fluoride is separated as an overheat at 22 and the bottom fraction being the aqueous azeotrope is recycled to the contactor 17 via lines 15, 14. The bottoms from column 19 is predominantly cyclohexanol and it is recycled to the contactor 17 via line 16. The aqueous phase from the contactor/separator 17, containing 74% water, 23% hydrogen fluoride and 3%  cyclohexanol, is recycled to column 12. In a modification of the above process, Fig. 2 (not shown), a reaction effluent produced in the rearrangement of peroxidized cyclohexanol in cyclohexanol solution containing 10% peroxy materials in the presence of hydrogen fluoride is stripped to remove anhydrous hydrogen fluoride, and subjected to counter-current extraction with water whence the spent liquid (low in acid) is neutralized with an aqueous, caustic alkali and further processed to recover the cyclohexanol for return to the initial reaction step and water is removed as an overhead from the extract to form aqueous, hydrofluoric acid azeotrope which is then treated by the process.
Patent GB-1054764-A (GB)
IPC: C08F10/00
Abstract: 1,054,764. Olefine-acetylene block copolymers. BADISCHE ANILIN- & SODAFABRIK A.G. Sept. 27, 1963 [Oct. 2, 1962], No. 38138/63. Heading C3P. Block copolymers containing double bonds are made by polymerizing singly and alternately a monoolefine and an acetylene at pressures of up to 25 atmospheres and temperatures between room temperature and 150‹ C. using catalysts composed of organometallic compounds of Groups IA, IIA, IIB and III and compounds of metals of Groups IVB, VIB, VIIB and VIII of the Periodic Table. The alternate polymerization of the monomers involves at least three alternations of feed with the monoolefine as the first feed, and the resulting polymers contain from 1 to 10% by weight of combined acetylene. The polymers may be hydrogenated or nitrated, or may be added to rubber in vulcanization. Catalyst systems exemplified are mixtures of titanium trichloride with triethylaluminium, diethylaluminium monochloride or diethylberyllium, mixtures of titanium tetrachloride with triethylaluminium, triisobutylaluminium or butyllithium, a mixture of vanadium oxychloride and methylaluminium sesquichloride, and a mixture of chromium trichloride and triethylaluminium. The catalyst system may be formed in the presence of pre-formed powdered isotactic polypropylene. The process is preferably carried out in the presence of an inert diluent, e.g. an aliphatic hydrocarbon. The examples describe making the following block copolymers: (1) poly-(propylene-b-acetylene), (2) poly - (propylene - b - phenylacetylene), (4) poly - ([ethylene - co - propylene] - b - acetylene), (7) poly - (ethylene - b - propine), (8) poly- (styrene - b - acetylene), (9) poly - (butene - 1 - b - acetylene), (10) poly - (ethylene - b - diacetyene), and (11) poly-(ethylene-b-acetylene).
Patent GB-1069230-A (GB)
Abstract: 1,069,230. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 22, 1965 [March 26, 1965], No. 54478/65. Heading G6C. A reactor comprises a core 5 formed by tubes 16 through which light-water flows, the lower ends of the tubes supporting by means of devices 29 fuel element assemblies 26. The fuel assemblies 26 surround the tubes 16 and substantially fill the space therebetween. Gas-coolant, e.g helium, flows downwardly through the fuel assemblies and passes over a boiler 7 (Fig. 1, not shown) beneath the core within the pressure vessel 12, the boiler generating superheated steam. The cooled gas returns upwardly, by circulators 20, in an annular space 21 surrounding the boiler and cools a thermal shield 22, graphite reflector 23 and beryllium oxide reflector 24 before reaching a plenum chamber 25 above the core. Each fuel assembly 26 comprises a fuel can 37 (Figs. 5-7, not shown) providing a path for the coolant gas, the can containing a number of fuel pins 38 supported by a spider 40, the upper end of the can fitting into a tube sheet 39. The tubes 16 are suspended from the lower tube sheet 28 of a shield plug 13, each tube accommodating a light water inlet tube 30, displaceable shim tubes 31a, 31c, and a displaceable shim rod 31b. The tubes 30 terminate in the upper tube sheet 32 of the plug 13, the moderator water passing downwardly from a plenum 36 through the tubes 30 and the annular spaces formed by the shim tubes 31a, 31c and rods 31b and returns upwards through the annular space between the tubes 30 and tubes 16 to a moderator return pipe 34. From the pipe 34 the light water flows to a heat removal system 15 (Fig. 1, not shown) comprising a heat-exchanger 17, expansion tank 18 and a pump 19, the water returning to the plenum 36 through a pipe 35. The movable shim tubes 31a, 31c and shim rods 31b are made of a material having a lower absorption cross-section for thermal neutrons and a lesser slowing down power than the water displaced. The shim rods 31b and shim tubes 31c are manually movable whilst shim tubes 31a are movable by actuators 14. The pressure vessel 12 is surrounded by a containment vessel 2 having lead shields 4 and borated water shield tanks 3 and is adapted for support by structural members 1 of a ship.
Patent GB-1084142-A (GB)
IPC: B21C37/20
Abstract: 1,084,142. Rolling. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNO - KONSTRUKTORSKY INSTITUTE METALLURGICHESKOGO MASHINOSTROENIJA. Jan. 6, 1965, No. 530/65. Heading B3M. External helical grooves 7 are produced on a bimetallic tube 1, 2 by three driven rolls 3, arranged at 120 degrees to each other, with their axes lying at an angle to the tube axis, equal to the angle of the helix. Each roll comprises a first set of discs 4, having the same peripheral shape but different diameters, a second set 5, having gradually thickening sections of the same diameter, and a third set 6 having a thinner cross-section and greater diameter. During rolling, rolls 3 rotate and feed the tube axially. The tube may have more than two layers.
Patent GB-1095378-A (GB)
IPC: A61K31/135
Abstract: 1,095,378. Amino - propanols. SANOL ARZNEIMITTEL DR. SCHWARZ G.m.b.H. June 21, 1966 [June 22, 1965], No. 27765/66. Heading C2C. Novel compounds of the formula wherein R represents a naphthyl or a phenyl group substituted by one or more of a halogen atom, a straight chain or branched and saturated or unsaturated lower alkyl, halogenalkyl, lower alkoxy, carboxy, carboxamide, carbalkoxy, lower alkyl carbonyl, hydroxy, nitro, amino, lower acylamino or phenyl groups and X represents oxygen or sulphur, are obtained (a) by reacting a pseudoephedrine with a compound of the formula (b) by reacting 1-pseudoephedrino-2,3-oxido propane or a 1-pseudoephedrino-2-hydroxypropyl halide with a phenol or naphthol, (c) by reacting a compound having the general formula with a 2-halo-3-hydroxy-3-phenylpropane, (d) by hydrogenating a compound of the formula and (e) by reacting a compound having the formula with a methylating agent. Pharmaceutical compositions having spasmolytic properties and containing the above compounds have utility as gastro-intestinal spasmolytics.
Patent GB-1228857-A (GB)
IPC: C08J9/14
Filed: 1968-05-28
Abstract: 1,228,857. Foamed sulphonated phenolformaldehyde resins. NAUCHNO - ISSLEDOVATELSKY INSTITUT SINTETICHESKIKH SMOL. 28 May, 1968, No. 25501/68. Headings C3C and C3R. A foamed plastic is produced by mixing a phenol-formaldehyde liquid resole, obtained by condensing 1 mole phenol with 1-3 moles of formaldehyde, with a condensation product of sulphonated phenol, urea and formaldehyde, which acts as a catalyst for the hardening of the resole, and feeding the mixture into a mould. The sulphonated phenol condensate may be obtained by sulphonation of phenol with sulphuric acid followed by treatment with urea and formaldehyde, or by treating a phenolsulphonic acid with urea and formaldehyde. The mixture may contain a surface active agent, e.g. a polyethyleneglycol ester of an alkyl phenol, a mono-oleate of polyoxyethylenesorbitol, or a block copolymer of polydimethyl siloxane and a polyoxyalkyleneglycol, and a foaming agent, e.g. C 2 Cl 3 F 3  or a mixture of aluminium or magnesium powder and orthoboric or orthophosphoric acid.
Patent GB-1229066-A (GB)
IPC: C08F297/04
Filed: 1969-04-08
Abstract: 1,229,066. Three-block elastomeric copolymers. INSTITUT NEFTEKHIMICHESKOGO SINTEZA IMENI A.V. TOPCHIEVA AKADEMII NAUK SSSR. 8 April, 1969 [9 April, 1968], No. 17793/69. Heading C3P. A block copolymer has the formula A-B-A where each block A is a homo-polymer of a triorganovinyl silane or a copolymer thereof with styrene or a substituted styrene, and block B is a polymer of conjugated diene. The A blocks have glass transition temperatures from 95‹ to 180‹ C. and molecular weights from 5000 to 200,000. The polymers may be obtained by (i) a three step sequential polymerization using an organolithium initiator, (ii) by a two step sequential polymerization process using lithium metal initiator via the first formed difunctional Li - B - Li intermediate, or (iii) by a two-step sequential polymerization in the presence of an organolithium initiator followed by coupling with a difunctional organosilicon compound or a dihalohydrocarbon. In examples all three processes are exemplified in the preparation of A-B-A polymers in which A is a homo-polymer of or copolymers of (CH 3 ) 3 Si.CH=CH 2  or with styrene or the latter compound with 2,4- dimethyl-styrene, the B block is poly-isoprene or polybutadiene, the initiators are ethyl-, n- and sec - butyl-, or sec - amyl lithium or lithium metal, and, where appropriate, the coupling agent is
Patent GB-1230553-A (GB)
IPC: C22B9/05
Filed: 1969-01-10
Abstract: 1,230,553. Refining metals; making alloys. L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. Jan.10, 1969 [Jan.10, 1968], No.1719/69. Heading C7D. [Also in Divisions F3 to F4] A vessel 2, used for treating flowing molten metals with gases is provided with at least two interconnecting compartments 10, 12 one or both of which are equipped with one or more porous gas injection plugs 40. Degassing of aluminium or steel using nitrogen or argon, under atmospheric pressure, or deoxidization and degassing of copper using hydrogen in the upstream compartment and nitrogen in the downstream compartment may be performed in the vessel. Liquid carbon tetrachloride could also be blown through the plugs to remove manganese and titanium from molten cast iron. Solid additives such as magnesium, silicon or copper, or liquid additives may be supplied through hopper 60, and inert gases through line 62. A modified vessel for degassing larger quantities of aluminium or steel flowing to a casting station is also disclosed, Figs.3 and 4 (not shown).
Patent GB-1232463-A (GB)
IPC: H01M4/26
Filed: 1968-06-25
Abstract: 1,232,463. Calcium zincate powder. GENERAL ELECTRIC CO. 25 June, 1968 [28 June, 1967], No. 30279/68. Heading C1A. [Also in Division H1] Calcium zincate powder containing calcium hydroxide and zinc oxide impurities is prepared by mixing a solution of a soluble zinc salt with a solution of a soluble calcium salt, adding alkaline material to precipitate calcium zincate, decanting the liquid, preferably washing with water, and drying. Suitable soluble salts of calcium and zinc include the acetates, nitrates, bromides, chlorates and perchlorates. Potassium hydroxide, sodium hydroxide, lithium hydroxide and calcium hydroxide may be used as alkaline material and be added as solids or in solution. Ammonia may be added to the washed precipitate before drying to bring the pH up to 10 (cf. Example III.)
Patent GB-1233219-A (GB)
IPC: H04L25/14
Filed: 1968-10-09
Abstract: 1,233,219. Time multiplex encoding. INTERNATIONAL STANDARD ELECTRIC CORP. 9 Oct., 1968 [16 Oct., 1967], No. 47845/68. Heading G4H. A time multiplex PCM coding and transmission system for mx channels divided into p groups includes a clock delivering mx/p time slot signals to control p encoders which deliver at the end of each time slot a coded signal for transmission. In the embodiment described for ten groups each of 60 channels the ten 8-bit coded signals at the end of a time slot are entered under the control of a bi-stable B1 (Fig. 2) into either the registers M1-M10 of memory MR1 or registers M11-M20 of memory MR2, the other memory then being read out under the control of serial signals L11- L20 or L1-L10 so that the 10 stored coded signals are entered serially into registers R1- R2 alternately (the eight bits being transferred in parallel). The registers are read out by gating signals S1-S16 so that the eight bits of each of the ten words are sequentially transmitted. The read-out memory is then cleared and receives the next ten coded signals whilst the data stored in the other memory is read out.
Patent GB-1233598-A (GB)
IPC: B65D5/46
Filed: 1968-05-31
Abstract: 1,233,598. Cartons. WILLIAM W. CLELAND Ltd., and A. A. BUCHMAN. 11 Aug., 1969 [31 May, 1968], No. 26091/68. Heading B8P. A tubular carton having panels 1-4 secured by a glue flap has its upper end closure formed by two panels 8 each substantially equal to the cross-section of the caton and is provided with folded portions 12 extending from two opposite wall panels each of which carries an extension 13 that interlock with one another to form a handle. Each panel 8 may have a hole 15 therein to locate the contents of the carton.
Patent GB-1251904-A (GB)
IPC: H01L23/10
Filed: 1969-10-31
Abstract: 1,251,904. Sealing metals and ceramics. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 31 Oct., 1969 [5 Nov., 1968], No. 53492/69. Heading B3V. [Also in Division C1] A devitrifiable glass for sealing to metals and ceramics consists in mol. percentages of SiO 2  9-26; B 2 O 3  9-36; Al 2 O 3  0-16; CaO + SrO + BaO + MgO 20-56; ZnO + CdO 9-56; the CdO being optional and the sum of (CaO + SrO + BaO + MgO + ZnO + CdO) is at least 50. Compositions are chosen to give matching coefficients of thermal expansion and examples are given of sealing together tubes of alumina; an alumina window in a steel frame; lead through joints between metal and metal and between metal and alumina, the glass being in powdered form and sealed in a nitrogen-hydrogen atmosphere or a non-reducing atmosphere.
Patent GB-1252652-A (GB)
IPC: E02F3/413
Filed: 1969-01-23
Abstract: 1,252,652. Grab-machines; knuckle joints. RUSTON-BUCYRUS Ltd. 23 Jan., 1969 [2 Feb., 1968], No. 3752/69. Headings E1F and E2F. A support for a bucket attachment of an excavator comprises brackets 13, 23 respectively provided with openings 19 and lugs 27 which engage in the openings, the lugs having flat bottom edges engaged with corresponding edges of the openings and top edges which are spaced from those of the openings so that the lugs can rock to a limited extent in the openings. Interengageable bosses 21, 29 are provided in the openings and on the lugs. In operation, the bosses 21, 29 engage when ground being worked is level, and the lugs rock in the openings when the ground is uneven.
Patent GB-1252835-A (GB)
IPC: C01B11/06
Filed: 1969-08-12
Abstract: 1,252,835. Calcium hypochlorite. PENNWALT CORP. 12 Aug., 1969 [4 Sept., 1968], No. 40346/69. Heading C1A. A free flowing, granular (0À075-2 mm.), dust free calcium hypochlorite containing 4-15% H 2 O is produced by adding water to dry material. Preferred water content is 7-12%.
Patent GB-1258073-A (GB)
IPC: H03K21/08
Filed: 1968-03-18
Abstract: 1,258,073. Binary complementing circuits. GEORGE RICHARDS & CO. Ltd. 18 March, 1969 [18 March, 1968], No. 12924/68. Heading G4H. A unit for causing a binary-coded counter output to be presented as the 9's complement comprises three inverter units 24, 26, 29, Fig. 2, controlled by a complement signal at X so that the " 1 " bit A is inverted when the complement signal is present, the " 2 " bit B is always passed unchanged, the "4" bit C is inverted if the complement signal is present and B is " 1 " and the " 8 " bit D is inverted if the complement signal is present and C and B are both " 0." The inverter units 24, 26, 29 are as shown in Fig. 1 and comprise N and gates 11, 13, 14 and a Nor gate 12. The input is applied to gates 11 and 12 and so is the control signal. If the control signal is " 1 " the input passes unchanged to the output. If it is " 0 " the input is inverted. In Fig. 2, the complement signal is a " 1 " applied at X. This is inverted by a Nand gate 23 having both inputs connected together to apply a " 0 " to the inverter 24 to cause it to invert the " 1 " bit A. The " 4 " bit C is inverted in circuit 26 when Nand gate 25 gives a " 0," i.e. when both the inputs (X and B) are " 1." Similarly, the " 8 " bit D is inverted at 29 when gate 28 gives a " 0," i.e. when both the inputs to Nor gate 27 are " 0 " and the X signal is present. The signal to complement may be applied by manual means, or automatically when the counter passes through zero. A minus sign may then be illuminated in place of a plus sign. The apparatus may be applied to the indicator in a machine tool of the position of work-piece or tool. Specification 12925/68 is referred to.
Patent GB-1258370-A (GB)
IPC: B60T8/60
Filed: 1970-07-27
Abstract: 1,258,370. Antiskid braking systems. SOC., ANON. D.B.A. 27 July, 1970 [25 Sept., 1969] No. 36210/70. Heading F2F. An anti-skid device for a vehicle braking system comprises a speed signal generator 10, a differentiating circuit 11 which provides from the speed signal an acceleration signal having an acceleration portion and a deceleration portion, a threshold detector 12 such as a Schmitt trigger arrangement responsive to the deceleration portion of the signal and an arrangement 13 responsive to the acceleration portion of the signal, the detector 12 producing a first control signal when the threshold is reached and a second fixed duration control signal via generator 14 when the deceleration returns to its previous level and the arrangement 13 producing a third control signal in response to predetermined values of the acceleration portion, and a braking pressure and modulation device 18 having an isolating electromagnetically operated valve 18b to isolate the brake pedal from the braking system for the duration of a control signal produced by an amplifier 17 in response to the combination of said first, second and third control signals and a similar valve 18o which operates in response to a signal from an amplifier 15 produced by the first control signal from detector 12, to release the braking pressure gradually. The triggering of detector 12 can be adjustated manually or may be adjusted in dependence upon the speed signal which is applied to the detector via a line 12<SP>1</SP>.
Patent GB-1264267-A (GB)
IPC: F16K5/20
Filed: 1970-03-11
Abstract: 1,264,267. Valves. GROVE VALVE & REGULATOR CO. 11 March, 1970 [28 April, 1969], No. 11743/70. Heading F2V. A valve in which the valve member has a closure surface movable transversely of a flow passage e.g. as in the rotatable spherical plug valve shown, is provided with a seat ring assembly movable axially of the passage into and out of engagement with the closure surface. The seat ring assembly 28 and an anchor ring 62 fixed to the valve body 12, have respective cooperating annular piston and cylinder members which can be pressurized to retract the seat assembly from the valve member to assist opening and closing. Fluid pressure from the interior body space at a point radially outwardly of the anchor member 62 which constitutes one of the piston-cylinder members, is allowed passageway to the back of the seat ring assembly 34, 100, e.g. round the back of the anchor member or through a passage 102, to urge the downstream seat assembly toward the valve member. The piston 60 may as shown be carried fast with the anchor ring, or a loose piston may be housed in the anchor ring and bear on a flanged member 34 fixed to the seat assembly. This loose piston has a resilient sealing section (90) backed by a P.T.F.E. ring (94) Fig. 4 (not shown). Fluid pressure to assist closure may be supplied through a passage 55 to a point between a tail ring 50 and an 0-ring 42, or the tail ring may be omitted and fluid from the flow passage have access to the 0-ring.
Patent GB-1266078-A (GB)
IPC: F16F15/14
Filed: 1970-08-11
Abstract: 1,266,078. Inertia weight vibration dampers. H. AOKI. 11 Aug., 1970 [15 Nov., 1969], No. 38593/70. Heading F2S. A vibration damper has two inertia members 2, 3 which are held together by an overlying flange instead of by welding or force-fitting as in the prior art (Fig. 6, not shown). They may be merely spring tuned, or spring tuned and viscously damped. The damper essentially comprises a mounting disc 4 with an annular rubber ring 1 secured to each side, a dished inertia mass member 3 which is in contact with one rubber ring and partially encloses the disc, and a second inertia mass member 2 which closes the mouth of the member 3 and is in contact with the other rubber ring. The member 2 is retained in position by a flanged portion 10 of the member 3 folded, by a pressing or rolling operation, over the outer surface of the member 2, with the optional insertion of a packing ring 6. Reference has been directed by the Comptroller to Specification 1,125,449.
Patent GB-1266295-A (GB)
IPC: E03C1/186
Filed: 1970-10-31
Abstract: 1,266,295. Composite sinks. D. L. FRANCIS. 31 Oct., 1970, No. 51867/70. Heading BID. [Also in Divisions A4 and Dl] A composite sink unit comprises a main sink which is generally rectangular in plan view and has a step formed in each of two opposed side walls to form ledges 4 on which one or two elongated containers 13, each having an open top and a perforated bottom wall, are supported by means of a flange at the top of the end walls of the or each container, each side wall of the main sink and of the or each perforated container having a length which decreases from the top to the bottom of the wall. The main sink and containers may be pressed from stainless steel or suction or injection moulded from plastics material and are said to be useful in washing clothes, cutlery and crockery in confined spaces.