baber/WOPTO huggingface dataset:
Patent GB-1370920-A (GB)
Title: Liquid membrane process for the separation of aqueous mixtures
Inventor: LI N N-T
IPC: B01D11/04
Filed: 1971-09-14
Abstract: 1370920 Removal of a dissolved species by diffusion ESSO RESEARCH & ENG CO 14 Sept 1971 42757/71 Heading C1A [Also in Divisions C2 and B1] A process for the removal of a dissolved species from an aqueous solution of the species comprises contacting a water in oil emulsion in which the exterior phase contains a surfactant and the interior phase comprises either (a) a reactant for the dissolved species, or (b) the aqueous solution of the dissolved species with either (a) the aqueous solution containing the dissolved species or (b) a solution comprising the reactant, whereby the dissolved species permeates the exterior phase and reacts with the reactant to give a non-permeable form. The dissolved species may be inorganic or organic, neutral or ionic, acidic or basic. Examples relate to removal of phosphoric acid and monosodium phosphate from an aqueous solution by mixing the phosphate solution and an emulsion of a solution of CaCl2 + NH4OH in a mixture of 1-amino-1,1,3,3,5,5,7,7,9,9-decamethyl decane and containing sorbitan mono-oleate or an emulsion of a solution of CaCl2 + Ca(OH)2 in C25 to C35 isoparaffin containing the polyamine as above and oil soluble amines having anion exchange properties; separation of nitrate from aqueous solutions by mixing the nitrate solution with an emulsion of a solution containing H2SO4, FeSO4 in C25 to C35 isoparaffin containing sorbitan mono-oleate; separation of ammonia by contacting NH4OH solution with an emulsion of HCl solution in C25 to C35 isoparaffin containing sorbitan mono-oleate.
Patent GB-918740-A (GB)
Title: Catalytic composition and process for the stereospecific polymerization of alpha-olefines
IPC: C08F10/00
Filed: 1959-12-17
Abstract: A catalytic composition for the stereospecific polymerization of a -olefines comprises (1) a trialkyl aluminium, (2) a titanium trihalide and (3) an electron donor organo-compound of P, As, Sb, Bi, O or S.  Specified (1) are triethyl and triisobutyl aluminium, (2) titanium trichloride and (3) tri-n-butyl phosphorus, triethyl phosphorus, tri-n-butyl arsine, thio-n-butyl ether, tetrahydrofuran, diethyl ether.  General reference is made to tributyl, triethyl and other tertiary, stibines and bismuthines. Examples describe the preparation of isotactic polypropylene.  The Specification also refers to butene-1 as a polymerizable a -olefin.  Specification 896,509 is referred to.
Patent GB-1134906-A (GB)
Title: Withdrawable electrical switching apparatus
IPC: H05K7/20
Filed: 1967-09-21
Abstract: 1,134,906. Protective arrangements. BROWN, BOVERI & CO. Ltd. 21 Sept., 1967 [23 Sept., 1966], No. 43037/67. Heading H2H. Electrical apparatus comprising elements mounted on a withdrawable housing is so arranged that disconnection of the elements and withdrawal of the housing can be effected whatever the voltage condition of the apparatus. A thyristor 2 is connected to electrical bus-bars 4, 6 by means of a fuse 3 and a connector 5 respectively, the bus-bars 4, 6 being secured to a fixed part of the housing 1. The thyristor with its heavy current connections is contained in a withdrawable part of the housing and has a wall 9 at the front end thereof in which is an opening 22 and which carries a cover-plate 25 containing an opening 26. The openings 22, 26 are in axial alignment with sleeves 19 in which are captive screws 17 by means of which the thyristor 2 is connected to the bus-bars 4, 6. The control gear for the thyristor is contained in a chamber 10 at the front of the housing 1 and connected to a cable channel 13 by means of a plug and socket device 12. A displaceable wall 15 is secured in front of the wall 9 by means of a screw 24 to a bracket 30, the wall having openings 23, 27 therein. Thus when it is required to remove the withdrawable part of the housing access to the screws 17 can only be gained by first removing the plug from the plug and socket connection 12 thereby disabling the thyristor 2. After removal of the plug the screw 24 can be loosened whereby the wall 15 can be displaced to bring the openings 23, 22 and 27, 26 into alignment thus allowing the insertion of an insulated tool into the sleeves 19 whereupon the screws 17 can be removed to break the heavy current connections between the thyristor 2 and the bus-bars 4, 6. The housing 1 and the wall 15 may be of insulating material.
Patent GB-1139607-A (GB)
Title: Azole compounds and processes for their manufacture and use
IPC: D06L4/60
Filed: 1966-09-27
Abstract: 1,139,607. Azole compounds. CI.BA Ltd. 27 Sept., 1966 [4 Oct., 1965], No. 43047/66. Heading C2C. [Also in Divisions C3 and D1] Novel compounds of the Formula Ib wherein A represents an aromatic carbocyclic residue condensed with the azole ring, X represents -O- or -NQ- (where Q stands for hydrogen, alkyl, hydroxyalkyl, cyanoalkyl, aralkyl or sulphonylalkyl), each of the substituents R 1 , R 2  and R 3  represent hydrogen or an alkyl or alkoxy group of up to 4 carbon atoms and B 1  represents a 5- or 6-membered aromatic carbocyclic or heterocyclic residue are prepared by reacting 3-B 1 -5-R 1 -6-R 2 -8-R 3 -coumarin-7- carboxylic acid or -carboxylic acid halide with an aminobenzene, the nucleus of which is represented by A substituted in the o-position by -XH, and then heating to effect cyclization between 150 and 300 C. in the presence of a high-boiling inert organic solvent and preferably a cyclization catalyst. B 1  is preferably a thiophene, furan or pyridine residue or a benzene nucleus substituted by hydrogen atoms, alkyl or alkoxy groups of up to 7 carbon atoms, halogen atoms, carboxyl groups, carboxylic acid ester or amide groups, nitrile groups, sulphonic acid or sulphonic acid ester or amide group, or a sulphinic acid ester group up to a maximum of 4 substituents. The residue A is preferably a benzene nucleus substituted by hydrogen atoms, halogen atoms, alkyl or alkoxy groups, carboxyl groups, carboxylic acid esters, amides or nitriles, alkyl groups of up to 7 carbon atoms further substituted by carboxyl groups, carboxylic acid esters, amides or nitriles, phenyl or phenylalkyl groups, substituted amino groups, sulphonic acid groups, sulphonic acid alkyl and aryl ester groups, sulphonamide groups, sulphinic acid alkyl and aryl ester groups, or 2 adjacent substituents may form a 6-membered carbocycle fused with the benzene nucleus. More preferably, the nucleus in A may be substituted by alkyl groups of 1 to 8 carbon atoms, e.g. tert.- butyl, alkoxy groups of 1 to 4 carbon atoms, chlorine, a carboxylic group, especially an alkyl ester or amide, a phenyl group, a phenylalkyl group containing up to 10 carbon atoms, or an alkyl group of 1 to 8 carbon atoms substituted by a nitrile or carboxylic acid alkyl ester group. The compounds of the invention are used as optical brighteners for organic materials. 3 - Phenyl - coumarin - 7 - carboxylic acid is prepared by reacting 4-carboxy-2-hydroxybenzaldehyde with benzylcyanide in the presence of piperidine and water.
Patent GB-1456392-A (GB)
Title: Ore purification process
IPC: B03D1/004
Filed: 1973-09-13
Abstract: 1456392 Froth flotation IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Aug 1974 [13 Sept 1973] 43075/74 Heading B2H In a method of separating an ore from silicate mineral gangue by froth flotation, a mixture of a water-soluble polymer and a water-soluble lignosulphonate salt is used as a gangue depressant. Suitable water-soluble polymers include natural polysaccharide gums e.g. guar gum, locust bean gum and gum arabic; cellulose derivatives e.g. methyl cellulose, ethyl methyl cellulose, hydroxyethyl cellulose, methyl hydroxypropyl cellulose, ethyl hydroxypropyl cellulose, ethyl hydroxyethyl cellulose, methyl hydroxyethyl cellulose, sodiuim carboxymethyl cellulose, sodium methyl  carboxymethyl cellulose and sodium carboxymethyl hydroxyethyl cellulose; starch ethers; alginate salts; polyvinyl alcohol and ethoxylated fatty alcohol derivatives. Suitable lignosulphanate salts are ammonium, sodium, potassium, calcium and magnesium lignosulphanates. Examples describe the treatment of nickel sulphide, Ou/Zn sulphide and Ni/Cu sulphide ores using xanthate collectors and sodium cyanide as a depressant for the zinc sulphides.
Patent GB-1440788-A (GB)
Title: Roller bodies
IPC: F16C13/00
Filed: 1973-09-27
Abstract: 1440788 Rollers CARL FREUDENBERG 27 Sept 1973 [29 Sept 1972] 43359/73 Heading F2U A roller 2 is made by helically winding strips 3 of non-woven fleece fabric (which has first been impregnated with rubber or plastics and then coated with plastics or pressed with layers of unvulcanized rubber, on both sides) in layers on to a core or mandrel 1 such that the turns of the helices cross each other in adjacent layers, vulcanizing or cross-linking the rubber or plastics after winding and then turning or grinding the roller to a smooth finish. The fabric for the strips may be made of longitudinally-orientated nylon fibres first impregnated with Bunatex VP, a mixture of butadiene/ styrene/vinylpyridine latex, and a resorcinol resin and then dipped into a latex solution or given a latex coating by a multi-roll calender. The prepared fabric may then be cut into strips and wound on to a steel core 1 ready for the vulcanization and machining operations.
Patent GB-1315514-A (GB)
Title: Method of making molybdenum-to-silica seals
IPC: C03C27/02
Filed: 1970-09-10
Abstract: 1315514 Glass to metal seals GENERAL ELECTRIC CO 10 Sept 1970 [13 Nov 1969] 43430/71 Heading C1M A method of forming a molybdenum to silica seal comprises (a) forming an assembly composed of outer tubing 10 of silica and an inner tubing 7 of silica of slightly smaller diameter with an open end fused at its edge 11 to the inner wall of tube 10 and with a closed end in the form of a re-entrant dimple 3 having a thinned out annular area of weakness 6 in its side walls; (b) inserting a molybdenum cup 12 with thin walls at its open end into the annular space between the two tubes; (c) fusing at 18 the walls of the inner and outer tubes 7 and 10 to embed the thin walls of the molybdenum cup 12 and form a hermetic seal therewith; and (d) striking the closed end of the dimple 3 by a rod 20 through a central opening 14 in the closed end 13 of the cup 12 to break the dimple 3 at its area of weakness 6. Sealing is preferably effected with a vacuum at the end of the cup and gas pressure at the other end, the gas being for example nitrogen. The assembly is formed initially from glass tubing 1, the broken off end 8 being flattened to give a thickened end which is then pressed inwardly as by the nose 4 of a tool 5, which forms part of a vacuum chuck, to form dimple 3. After insertion of the cup 12, vacuum is applied and the end 15 sealed off at 17, the other end 16 being tubulated for connection to the gas pressure. During sealing by gas burners, the ends 16, 17 are supported in rotating chucks and prior to breaking off the end 19 of the dimple 3, the tube 10 is severed to the required length. Two tubes may then be sealed into a fused silica base member (21) and rigid lead in conductors (23) of tungsten soldered through the openings 14 by nickel solder. Preferably the tube 10 is of pure fused silica or quartz and the tube 7 is of 96% silica glass, having a slightly lower softening temperature, to facilitate the fusion of the two tubes.
Patent GB-1079024-A (GB)
Title: Improvements in and relating to timing mechanisms
Inventor: CARTIER ROGER JOHN
IPC: H01H43/10
Filed: 1964-10-24
Abstract: 1,079,024. Time switches. CONTROLS CO. OF AMERICA. Sept. 24, 1965 [Oct. 24, 1964], ,No. 43452/64. Addition to 1,045,916. Heading H2B. [Also in Divisions F2 and D1] Switch - -operating cams for a washing- machine are driven by a ratchet wheel 11, stepped onwards by one tooth at a time by axeciprocating pawl 12 disengageable for four pawl step intervals for each revolution of the ratchet wheel 11. During the static period of the ratchet wheel 11 the pawl 12 is held out of ratchet tooth engagement by a sprung mask 26 having similar ratchet teeth 26b, movable transversely and rotatively on the ratchet wheel shaft 27 and actuated by a sprung arm 34 having ratchet teeth engaging similar teeth 26c on the mask 26. The arm 34 actuates the mask when a projection 32 thereof is sprung into a notch in one of the switch cams 33. The pawl 12 then drives the mask 26 clockwise four steps without ratchet wheel rotation, and with the teeth 26c ratcheting over the similar teeth an arm 34, until the mask is pulled out of pawl engagement over the end of arm 34 by spring 37. The pawl 12 then re-engages the ratchet wheel and drives the cam 33 clockwise thus swinging arm 34 anti-clockwise to re-engage its ratchet teeth with those 26c of the mask ready for the next masking period. The arm 34 may be axially moved out of the path of cam 33 by the chamfered end (134b) of an integral arm (134) engaging a manually adjusted rotating disc (45) fast with the switch-cams, Fig. 2 (not shown).
Patent GB-1482474-A (GB)
Title: Energy absorbing bunper assembly
IPC: B60R19/18
Filed: 1974-10-09
Abstract: 1482474 Energy absorbing FORD MOTOR CO Ltd 9 Oct 1974 [9 Oct 1973] 43706/74 Heading F2S [Also in Division B7] An energy absorbing bumper assembly for a vehicle comprises a rigid backing member 204 secured in use to the vehicle, a resiliently deformable shell 202 secured to the backing member to define therewith a chamber, and a plurality of partitions 218 formed integrally with the shell and extending from the shell towards the backing member to divide the chamber into a plurality of compartments 220, at least some of the partitions having a free edge 222 spaced from the backing member by a distance less than the dimension of the partitions in the direction in which they extend from the shell towards the backing member. In operation the free edges 222 contact the backing member 204 upon an impact to the bumper assembly thereby restricting communication between compartments 220 so that air is forced between compartments to absorb energy. Each partition may have an orifice or valve through which air can also be forced to absorb energy. All partitions may have an edge 222 spaced from the backing member as shown, or alternatively the edges of some partitions may contact the backing member. The shell may be made of urethane and the backing member of aluminium, and a flexible trim strip 236 may be mounted on the shell.
Patent GB-1275755-A (GB)
Title: Improvements in or relating to gas turbine engine power plants
Inventor: JUBB ALBERT
IPC: G21D5/06
Filed: 1968-09-14
Abstract: 1275755 Gas turbine plant ROLLS-ROYCE Ltd 4 Sept 1969 [14 Sept 1968| 43821/68 Heading F1G A closed cycle gas turbine power plant comprises compressor means, means to heat working fluid compressed by the compressor means and turbine means arranged to be driven by the heated working fluid, there being means for adjusting the temperature of the working fluid entering and/or flowing within the compressor means so as to adjust the power output of the power plant. In the embodiment shown which is similar to that described in Specifications 1275753 and 1275754, the working fluid is helium which is heated in a nuclear reactor 22. The working fluid is compressed in LP compressor 14, cooled in interstage cooler 16, further compressed in HP compressor 18 and then pre-heated in recuperator 20. The fluid is then further heated in nuclear reactor 22 and passed to HP turbine 24 which is connected to drive the compressors 14, 18 by means not shown. The fluid then passes through control valve 34 to LP turbine 32 which drives a useful load, (not shown). The fluid then passes to recuperator 20, finally passing to pre-cooler 12 before re-entering the LP compressor 14. The working fluid is cooled in the pre-cooler 12 and intercooler 16 by pure water circulated by a constant speed pump 50 in two circuits, the pure water itself being cooled in two external coolers 52, 54 through which water such as sea or river water is circulated by a variable speed pump.
Patent GB-1287050-A (GB)
Title: pi-ALLYLIC PALLADIUM COMPLEXES
Inventor: BERNARD ALBERT JEAN
IPC: C07F15/00
Filed: 1970-09-16
Abstract: 1287050 #-Allylic paladium polymerization catalysts ESSO RESEARCH & ENG CO 19 April 1971 [16 Sept 1970] 44183/70 Heading C3P [Also in Division C2] A polymerization catalyst comprises one or more #-allylic palladium complexes of formula #-all-PdX where "all" is an allyl group which may contain hydrocarbyl substituents and X is CN, CNO, CNS or CNSe, with the restriction that X is not CNS when "all" is methallyl, optionally in combination with a Lewis base YR 3  or Y(OR) 3  where Y is a Group Vb element excluding nitrogen and R is hydrocarbyl. In Example 14, polymethylmethacrylate is prepared using #-methallyl palladium cyanate as catalyst.
Patent GB-919623-A (GB)
Title: Improvements in card feed mechanisms
IPC: G06K13/107
Filed: 1959-12-30
Abstract: 919,623. Feeding cards. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 30, 1959 [Dec. 30, 1958 (3)], No. 44199/59. Class 78 (1). Cards are fed from hopper 12 (Fig. 2) by oscillating picker knife 16 operated by cams 78 and pass into the nip of rolls 20, which discharge the card leftwards; and the discharge is assisted by the positioning of the lowermost card by means of suction. Thus suction is applied at 90 to slots 98 of the picker knife 16, and at 60 to the throat slots 58. As the picker knife 16 withdraws to the right it draws the lowermost card to the right by suction till the card is positioned against stops 106. Then the knife pushes the card to the left, and the suction at 58 serves to flatten the card so as O guide it through the throat 43. The suction means may be replaced by electrostatic means, and the picker means may be replaced by discharging rolls. Preventing jamming (Fig. 7). Throat barriers 72 and card lifters 62 are both simultaneously raised by air-operated diaphragm 90 via rod 70, lever 66 and sectors 86, 88. This is effected as cards are being supplied to the hopper. The barriers 72 prevent the sliding forward of the cards as they are stacking themselves in the hopper and lifters 62 prevent discharge of the cards till a sufficient stack of cards has been supplied to the hopper.
Patent GB-1157347-A (GB)
Title: Arc Welding
IPC: B23K9/073
Filed: 1966-10-04
Abstract: 1,157,347. Welding by fusion. UNION CARBIDE CORP. 4 Oct., 1966 [5 Oct., 1965], No. 44258/66. Heading B3R. [Also in Division C7] In consumable electrode arc welding plates at least ¢-inch thick using a welding groove of width equal to <SP>1</SP>/ 16 -<SP>1</SP>/ 3  of the plate thickness, the power supplied to the arc is alternately changed between a first value and a second value at a frequency of alternation which will permit the arc to adjust its length in response to the power change. The power change may be effected by varying the feed speed or by altering the supply itself, e.g., by the shunting of a resistance in one of the supply leads by a timer controlled relay. The frequency is 50-100 cycles/ minute. The values and timing may be such that short-circuiting transfer occurs during at least 50% of the time and spray or globular transfer occurs at the higher power value. A bare wire or flux-filled tubular electrode may be used with a shielding gas of argon or helium or mixtures of these gases with oxygen or carbon dioxide, (e.g. 75% A + 25% CO 2 ; 95% A + 5% O 2 ). Prior to welding a backing- plate 9 is tack-welded to the plates A, B and the electrode 5 is fed down into the gap, the electrode extension being up to 4 inches. The following low alloy steel electrodes may be used:- 1. 2. 0À04% C 0À03% C 1À2% Mn 1À75% Mn 0À5% Si 0À5% Si 0À1% Al 0À01% Al 0À07% Zr 0À01% Zr 0À1% Ti 0À01% Ti 0À016% P 1À65% Ni 0À02% S 0À3% Mo balance Fe 0À1% Cr 0À005% S 0À005% P balance Fe
Patent GB-959230-A (GB)
Title: Valve operating mechanism
IPC: F16K31/05
Filed: 1961-12-12
Abstract: 959,230. Positive clutches; clutch control. CRANE CO. Dec. 12, 1961 [Oct. 30, 1961], No. 44406/61. Headings F2C and F2L. In a valve-actuating mechanism which is normally operated by an electric motor 22 and has provision for operation by a hand wheel 24, clutch means is manually actuable to clutch the hand wheel to the valve mechanism, the clutch means being automatically actuated to clutch the motor to the valve mechanism upon energization of the motor. A double dog clutch sleeve 66 is slidably splined to an output shaft 62 driving the valve spindle 20 and is biased by a spring 90 to the left so that lugs 82 on the sleeve normally engage pins 80 on a wormwheel 78 and are driven thereby. The wormwheel 78 is driven by a worm 76 on a shaft 72 driven by the motor 22. The sleeve 66 can be slid to the right by manual operation of a fork 92 to engage lugs 88 on the clutch sleeve with lugs 86 on the hand wheel 24. During this movement of the sleeve 66, a Z-shaped arm 102, which is fast with the shift fork 92, is removed from the path of a latch 100, which is pivoted about a pin 101 and is biased by a spring 104 to a position parallel to the output shaft 62. The latch 100 thus assumes a position in which its end 100b abuts the end of the arm 102 and prevents leftward movement of the clutch sleeve 66. The pivot pin 101 extends through a slot 106 in the latch so that, when the shift fork 92 is released and the spring 90 urges the sleeve 66 and fork 92 to the left, the end 100a of the latch is pressed into frictional engagement with the surface of the worm-wheel 78. If the motor 22 is now energized the worm 76 rotates the worm-wheel which pivots the latch 100 to release the arm 102 and permits spring 90 to move the clutch sleeve 66 to the left to clutch the worm-wheel to the output shaft 62. A torque sensitive switch is provided to switch off the motor when the valve is fully open or closed. To this end the worm-shaft 72 is slidably as well as rotatably mounted in the stationary housing, and when a predetermined resistance to rotation of the wheel 78 is experienced, the shaft 72 slides axially. The shaft 72 acts through a bearing 108 on a member 116 abutting a guide 120 and fast with an headed stud 122 slidably engaged in a nut 124 which is adjustably screwed in a guide 126 which carries a switch 110 having an actuator 134. If the motor 22 is driven forwardly the shaft 72 is urged to the left by the torque reaction, this movement being opposed by a spring 128 between the member 116 and the guide 126 which abuts against the stationary housing. At a predetermined torque the guide 120 actuates the switch 110 to break the motor circuit. A second circuit is made when it is desired to drive the motor in reverse. Under these conditions the shaft 72 is urged to the right, so that the guide 126 is moved to the right, compressing the spring 128 as the guide 120 now abuts the housing. At a predetermined torque the switch 110 is actuated to break the reverse circuit.
Patent GB-1057258-A (GB)
Title: Gear generating machine
IPC: B23F17/00
Filed: 1963-11-11
Abstract: <PICT:1057258/C6-C7/1> A gear generating machine comprises a cylindrical grinding element 15 which can be rotated at high speed and traversed across the rim of a rotating blank 10 to cut a tooth space 25 therein. The element may be a nickel-plated tungsten wire in which is embedded a fine grit diamond abrasive. The work is rotated by a motor M and is indexed by means 17 which also controls means which traverse the element.  The grinding may be carried out in the presence of an electrolyte with an electric current being passed between the element and the gear.  The wire may be 1/8 inch long between its holding devices 13, 14 and be rotated at 20,000 R.P.M.