baber/WOPTO huggingface dataset:
Patent GB-1382450-A (GB)
Title: Continuous ion exchange process and apparatus
IPC: B01J47/10
Filed: 1972-12-20
Abstract: 1382450 Ion-exchange process ROSSING URANIUM Ltd and R R PORTER 20 Dec 1972 [28 Dec 1971 9 Nov 1972] 58752/72 Heading B1J A method of extracting ions from a liquid solution comprises continuously passing the solution successively into and through each ion exchange vessel of a series of two or more vessels, each initially containing an adsorption column of ion exchange material; removing substantially all of the loaded adsorption column from the first vessel of the series; thereafter replacing the removed adsorption column with substantially all of the relatively less loaded adsorption column from the second vessel of the series, while continuing the flow of solution; and doing the same for each subsequent vessel of the series in turn, the adsorption column of the last vessel of the series being replaced by substantially unloaded ion exchange material; continuously withdrawing the treated solution from said last vessel of the series; and continually repeating the cycle during the period of operation of the method. Removal may be continuous or batchwise, but substantially the whole column is removed before any replacement takes place. The loaded material removed from the first column may be regenerated by elution and returned as fresh material to the last column. Each column may contain two beds, one cationic and one anionic.
Patent GB-1453310-A (GB)
Title: Process for making a voltage dependent resistor
IPC: H01B1/08
Filed: 1973-12-28
Abstract: 1453310 Varistor composition MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 28 Dec 1973 [29 Dec 1972 (2) 13 April 1973 15 June 1973] 60011/73 Heading C1J [Also in Division H1] A varistor comprises a sintered coated body consisting of ZnO and at least one specified additive. The additives are: CoO, MnO, Sb 2 O 3 , BaO, SrO, PbO, UO 2 , SnO 2 , Cr 2 O 3 , SiO 2 , NiO. The coating is at least 10Ám. thick and consists of (before sintering) either the additive(s) used in the body; or 50-100 mol. per cent SiO 2  and 0-50 mol. per cent Bi 2 O 3 ; or not less than 30 mol. per cent Sb 2 O 3  and not more than 70 mol. per cent Bi 2 O 3 ; or not less than 50 mol. per cent In 2 O 3  and not more than 50 mol. per cent Bi 2 O 3 . When the coating material includes Bi 2 O 3  and SiO 2  or Sb 2 O 3 , the sintered coating comprises a high resistivity reaction product of ZnO and SiO 2  or Sb 2 O 3 , namely Zn 2 SiO 4  or, Zn 7 Sb 2 O 11 ; preferably, at 3Ám. below its surface the coating comprises more than 70 mol. per cent of such reaction product. The body is formed by conventionally sintering powdered materials under pressure, the coating materials being applied in a binder of organic resin in solvent. The varistor may be rod-shaped, having the coating formed on its side surface(s) and electrodes applied to its end surfaces; the electrodes may be made of noble metal paint; electroless- or electro-plated Ag, Cu, Ni, or Sn; vacuum evaporated Al, Zn, or Sn; or flamesprayed Cu, Su, Al or Zn. Lead wires may be connected to the electrodes with solder or a conductive adhesive comprising Ag powder and resin in an organic solvent. Alternatively, the varistor may be disc-shaped, coated overall, and, in some cases, reduced in thickness by abrading before opposite faces of the disc are spray-metallized with Al.
Patent GB-1381370-A (GB)
Title: Process for removing nitrogen oxides from exhaust gases
IPC: B01D53/94
Filed: 1972-12-29
Abstract: 1381370 Inorganic substances KNAPSACK AG 29 Dec 1972 [30 Dec 1971] 60037/72 Heading C1A [Also in Division F1] A process for reducing the nitrogen oxides, in an exhaust gas, to nitrogen comprises contacting the nitrogen oxide-containing gas, in admixture with at least a stoichiometric proportion based on the nitrogen content of the gas, of hydrogen and/or carbon monoxide and/or a gaseous hydro-carbon reductant, with a catalyst comprising a homogeneous mixture of oxides and/or aluminates of copper, nickel and manganese at temperatures between 150 and 1100 C. The exhaust gases are those emanating from an I.C. engine or from the production of nitric acid. In the former case the reducing gas will be present in the exhaust gas and in the latter case is added as natural gas, methane or propane. The ratio of the metal compounds one to another is between 0À1 to 1À0 and is preferably 1 : 1 : 1. The homogeneous mixture is pelletized or is deposited on an inert carrier i.e. aluminium oxide, spinel, mullite, cordierite or gehlenite, in which case the amount of catalyst present is 2 to 40% by wt., calculated as metal oxides of the overall weight of catalyst and carrier, but is preferably 5 to 15% by wt. The catalyst is made by impregnating the carrier with an aqueous solution, saturated while hot, of copper, nickel and manganese nitrates, drying the impregnated carrier at 90 to 150 C. and heating the dry carrier to 200 to 450 C. to decompose the nitrates to form the metal oxides. To form aluminates, the mixture of aluminium oxide and metal oxides is heated to 900 to 1100 C. The aluminium oxide is α-Al 2 O 3  produced by annealing α-Al(OH) 3  at 1000 C. Under experimental conditions which included artificial ageing by operating at cyclically varying temperatures between 265 and 950 C., the catalyst was found to convert 95% of the nitrogen oxides, in an exhaust gas, to nitrogen when operated finally at 950 C.
Patent GB-1317080-A (GB)
Title: Preparation of o-chlorophenols
IPC: C07C37/07
Filed: 1971-12-29
Abstract: 1317080 O-Chlorophenols QUAKER OATS CO 29 Dec 1971 [16 Feb 1971] 60451/71 Heading C2C Ortho-chlorophenols are prepared by contacting a chlorinated alicyclic ketone having the general formula wherein X is a hydrogen or chlorine radical, with a nitrogen-containing catalyst which is an amine, amide, urea, or acid salt thereof at a temperature between 100‹ and 300‹ C. The amount of catalyst present is preferably from 0À1 to 10% by weight of the ketone. The catalyst is preferably a heteroaromatic amine, an aromatic amine, an aliphatic amine, an N- alkyl substituted amide or urea, an N-aryl substituted amide or urea, or an acid salt thereof.
Patent GB-1292300-A (GB)
Title: Prefolded and sewn diaper
IPC: A61F13/15
Filed: 1969-12-12
Abstract: 1292300 Diapers RIEGEL TEXTILE CORP 12 Dec 1969 [13 Dec 1968] 60870/69 Heading A3V [Also in Division D1] A prefolded and sewn multilayer diaper is made from a two-ply woven material of which the first ply 12 has a greater fabric density and less open construction than the second ply, the material being folded and sewn at 24 so that the first ply forms the entire outer surface and provides wear resistance and the second ply forms inner layers and provides liquid absorbency. The first ply preferably has a warp end density greater than 39 yarns/inch and more preferably 40-64, the corresponding figures for the second ply being less than 37 and 16-36. Two warpwise extending strips 15, 16 having a warp end density in the range 66-90 may be provided in the first ply to form outside fold edges and further reduce wear.
Patent GB-1374244-A (GB)
Title: Cyclopropane derivatives
IPC: C07D309/12
Filed: 1970-12-24
Abstract: 1374244 Cyclopropane derivatives NATIONAL RESEARCH DEVELOPMENT CORP 22 Dec 1971 [24 Dec 1970] 61320/70 Heading C2C The invention comprises compounds of the formula  where X<SP>1</SP> and X<SP>2</SP> are alkyl, carboalkoxy, carboxy, hydroxymethyl or aldehyde or together represent alkylene, X<SP>3</SP> and X<SP>4</SP> are alkyl and R is carboxy, carbalkoxy, hydroxymethyl or etherified hydroxymethyl. The compounds are prepared by reacting together compounds of the formulµ where R<SP>1</SP> is hydroxymethyl or etherified hydroxymethyl, in the presence of an inorganic or organic base, and if desired converting the hydroxymethyl or etherified hydroxymethyl group into a carboxy or carbalkoxy group. The compounds may be reduced to give compounds of the formula
Patent GB-750324-A (GB)
Abstract: 750,324. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (Bell Telephone Manufacturing Co., Soc. Anon.). May 21, 1954 [May 29, 1953], No. 15084/53. Class 40 (4). The outlets of a selector are all permanently and operatively connected to test relays and the operation of the test relays is selectively inhibited in respect of all the outlets except those of the wanted group, so that the outlets of the wanted group alone can be tested. As shown, each test lead of selector A is connected to an individual one of resistances R1 to R16, the resistances being connected via rectifiers to test relays of the groups Aar to Adr and Bar to Bdr in such manner that battery connected to one of the resistances operates one relay in each group, the operated relays short-circuiting the other relays of both groups, and the operated combination being characteristic of the outlet associated with that resistance. Normally, however, ground is connected over the contacts S1, S2, and S3 to short-circuit all the test relays, and when a particular group of outlets is to be tested the contact, say S1, associated with that group is opened so that free outlets of that group are no longer prevented from operating the test relays and testing of the outlets of that group can proceed. The operated combination of test relays may control the setting of a crossbar selector to the tested outlet.
Patent GB-2006685-A (GB)
Title: Ink jet recording apparatus
IPC: B41J2/02
Filed: 1978-10-06
Abstract: An ink jet recording apparatus having an ink droplet generating device comprises a nozzle for injecting pressurized ink supplied from an external ink supply source, an electro-mechanical converter mechanically coupled to the nozzle for vibrating the nozzle at predetermined drive frequency in response to a drive signal voltage applied from an external electrical drive signal source, thus causing turbulence in the ink flowing in the nozzle, and means mechanically coupled to the nozzle and the electro-mechanical converter for regulating the mechanical constant of the ink droplet generating device. The mechanical constant and/or the drive frequency of the ink droplet generating device is regulated in such a manner that the ink droplet generating device fails to resonate mechanically at a frequency n times the drive frequency or in the vicinity of the drive frequency, thus providing stable characteristics of ink droplet generation without being adversely affected by the effect of harmonic parasitic vibrations.
Patent GB-2007181-A (GB)
Title: Crane and Block Arrangement for a Trawler Vessel
IPC: B63B35/16
Filed: 1978-11-02
Abstract: This invention relates to crane and block arrangements for guiding trawl net cables over the stern of trawler vessels to a trawl winch on board, and is concerned with providing an arrangement which facilitates trawling in ice-filled waters. Each trawl cable block (6) is pivotally suspended like a pendulum at an upper end of a crane provided by an arm (4) which is doubly cranked similar to that of a drop davit. The lower end of the arm (4) is pivotable about an axis approximately parallel to the longitudinal axis of the vessel. The arrangement of a pair of arms (4) is such that the outer ends thereof almost meet in a lowered position in which the cable blocks (6') are positioned below the plane of the deck (3) whereby the trawl cables lie approximately in the centre of the propeller race in an area where ice has been removed by passage of the vessel and the action of the propeller. <IMAGE>
Patent GB-2015764-A (GB)
Title: Method of sensitizing zinc oxide with sensitizing dye and photosensitive layers utilizing the sensitized zinc oxide
IPC: G03G5/09
Filed: 1979-02-06
Abstract: Zinc oxide is sensitized with a sensitizing dye by causing the surface of the zinc oxide to adsorb the dye and a hydrophilic resin. Preferably, the dye and hydrophilic resin are dissolved in a first solvent, and a second solvent is added. The second solvent is less volatile than the first solvent, miscible there with and does not dissolve both of the sensitizing dye and the hydrophilic resin. Zinc oxide powder is incorporated into the solution. After blending, the mixture is dried and pulverized to obtain sensitized zinc oxide. This powder can then be mixed with a bonding agent consisting of a resinous material having an acid value of 5-30 to form a mixture which is formed into a thin photosensitive layer for use in electro- photography.
Patent GB-2015976-A (GB)
Title: Hydrogen sulphide removal process
IPC: D21C11/08
Filed: 1979-03-21
Abstract: Hydrogen sulphide is removed from a gas mixture containing it by introducing ferric chloride into the gas mixture and then passing the latter through a bed of inert granular solid material whereby the hydrogen sulphide is oxidised with deposition of elemental sulphur on the solid material. The ferric chloride catalyses this oxidation.
Patent GB-2045627-A (GB)
Title: Multi-station reaction injection molding apparatus and method
IPC: B29C44/38
Filed: 1979-03-26
Abstract: In-place foaming of polymerizable resins in articles advanced along a production line, as for example in the manufacture of insulated appliance housings such as refrigerator cabinets takes place at pour stations, where injection of foamable resin mix is accomplished by molding heads 26 supplied with at least two liquid resin components through respective supply manifolds 54, 56 to which all of the heads are connected in parallel by shunting ducts. Excess unmixed liquid components are returned separately from each of the heads through recycle shunting ducts 78, 80 to respective recycle manifolds 66, 68. Thus division of the component flows takes place among all of the heads, whereby temperature and compositional uniformity of the components is maintained as close to the point of mixing and injection as possible. Control means 82, 84 selectively determine the order in which each pour station injects foam mix into an article and produces a metered output of the respective components at elevated pressure sufficient to effect reaction injection mixing at the selected head, while simultaneously interrupting the flow of all components at all of the other heads. Reduction of off-ratio mixing problems, and greater uniformity of foam properties, are thus achieved. <IMAGE>
Patent GB-2026952-A (GB)
Title: Hand trollies
IPC: B62B1/00
Filed: 1979-05-30
Abstract: The framework of a folding shopping trolley has two lateral tubular members 6 each supported on a wheel and connected to a central tubular member 2 by articulated parallelogram links 5. A slide 3 on the central member 2 is connected to the lateral members 6 by articulated struts 7 to extend and collapse the frame. In the extended and collapsed conditions, the side is locked to the central member 2 by a locking screw 1. <IMAGE>
Patent GB-2025192-A (GB)
Title: Rotary cultivator with earthing up means
IPC: A01B39/14
Filed: 1979-06-27
Abstract: A rotary cultivator for making rows of earth and having earthing up means 9 comprising earth guiding parts 11 arranged side by side, each having a front edge 12 inclined downwardly and rearwardly and bottom edges 17 extending rearwardly and upwardly from the lowest point of the front edge, the front edges extending from substantially above the surface of the earth to a level corresponding to the depth reached in the earth by the cultivating members. The means 9 is pivotally attached to a beam 8 and restrained by beam 15 via a rod with adjustable spring 14. <IMAGE>
Patent GB-2027934-A (GB)
Title: Electronic flash attachment with holder for batteries or accumulators
IPC: G03B15/05
Filed: 1979-08-09
Abstract: An electronic flash apparatus has a current supply device comprising a housing shell 3 which is open on two sides and holds several batteries or accumulators. When fitted onto the apparatus the open sides are closed by the flash apparatus housing. The shell preferably slides onto the housing and preferably has dividing walls 23 and curved cover portions 24 for locating the batteries. <IMAGE>
Patent GB-2032947-A (GB)
Title: Catalytic Cracking with Reduced Emissions of Sulfur Oxides
IPC: C10G11/18
Filed: 1979-09-10
Abstract: Sulfur oxides are removed at least partially from the gaseous effluent from a catalyst regenerator of a fluid catalytic cracking unit operated with feedstock containing sulfur compounds by associating the sulfur oxides in the effluent gas with discrete particles of alumina having at least one rare earth compound, preferably cerium or a rare earth mixture rich in cerium, supported thereon, the particles then being returned, in admixture with regenerated catalyst, to the cracking zone, and the sulphur- containing particulate material reacting in the cracking zone to form hydrogen sulphide (which is removed from the cracking zone with the cracked fractions). The alumina particles may be a component of particles of a composite fluid cracking catalyst or separate fluidizable entities other than cracking catalyst and physically admixed with the catalyst particles.
Patent GB-2062713-A (GB)
Title: Non-Woven Fabric for Use in Removing Oil Pollutants
IPC: D04H1/485
Filed: 1979-11-02
Abstract: A non-woven fabric for use in removing oil pollutants which is formed by needling a layer of staple fibres made of oleophilic material and bonded together (preferably by heat). The parameters of the fibre, and of the needling operation, are selected so as to result in a non-woven fabric having a fibrous structure provided by a random orientation of fibres.
Patent GB-2045390-A (GB)
Title: Coupling parts for rotation
IPC: B23P19/02
Filed: 1979-12-11
Abstract: A cold-pressing process is used for fitting, for example, a nylon collar or to a steel cylindrical body having cutting teeth. The invention may be applied to a shot or shell having a driving band 9, or to a gear wheel. The cylindrical body may be provided with a keyed portion 2 having a plurality of axially parallel serrations 7 each machined at one end face 6 to provide a cutting edge 8. In assembly the collar 9 is aligned with the serrations and axially pressed against the cutting edges so as to broach keyways in the collar which engage fully with the serrations. <IMAGE>
Patent GB-2040509-A (GB)
Title: Electro-hydraulic Control Systems
IPC: F15B13/16
Filed: 1980-01-15
Abstract: An electro-hydraulic pressure control valve has a first amplifier stage comprised by an electro-magnetic torque motor 11 adapted to adjust the position of a flapper 15 in relation to two nozzles 16, 17 for providing fluid control pressures to a second amplifier stage comprised by a spool 24 that responds to the fluid control pressures in order to regulate a valve output fluid pressure 26. A fluid pressure operated feedback arrangement 38, 21 responsive to valve output fluid pressure provides modification of flapper movement in a manner countering adjustment of the flapper by the torque motor so that valve output pressure is quickly and accurately regulated in relation to a control input to the torque motor. <IMAGE>
Patent GB-2064069-A (GB)
Title: A Check Valve Operating as a Pressure Limiting Valve and a Make-up Valve
IPC: F16K17/08
Filed: 1980-11-04
Abstract: The valve has two valve members (16,35) concentric with one another of which the pressure limiting inner valve member (35) is opened by pressure in a load chamber 13 against a spring (43) and has a sliding seal (27,36) which separates a cavity (42) in the outer valve member (16) from a load chamber (13). A throttle (45,39) provides damping of the inner valve member (35) in both directions. From pressure at load chamber 13, the outer valve 16 is subjected to an opening force and, via a spiral groove 34, to a closing force. When the direct opening force on valve 16 due to pressure at outlet 15 is greater than the net closing force due to load pressure combined with spring 32 this valve will open to allow a make up flow from outlet 15 to load chamber 13. <IMAGE>
Patent GB-2066269-A (GB)
Title: Cathodically depositable acrylic coating compositions
IPC: C08L75/00
Filed: 1980-11-06
Abstract: A nitrogen-containing acrylic copolymer composition for forming cathodically electrodeposited coating comprises     (i) a linear copolymer comprising 2 to 90% of units of Formula (A),   <IMAGE>  wherein  R1 and R2 are hydrogen, hydrocarbyl or aminoalkyl,  10 to 98 % of units of Formula (B),   <IMAGE> wherein R3 is hydrogen, methyl, C1-6alkoxy, halogen or -CH2COOR6 wherein R6 is hydrogen, C1-10 alkyl or C7-12arylalkyl, R4 is hydrogen, C1-20alkyl, C3-10cycloalkyl, C3-10halocycloalkyl, C6-20 aryl, C6-20haloaryl, C7-12arylalkyl, C1-12haloalkyl, C1-12hydroxyalkyl, C2-12 alkoxyalkyl, tetrahydrofurfuryl, glycidyl, -(-CH2-CH2-O-)m-R7, wherein R7 is a C1-8alkyl group and m is an integer of 1 to 30,  or C3-20dialkylaminoalkyl, and  R5 is hydrogen or -COOR8 wherein R8 is hydrogen or C1-20alkyl, and  0 to 88% of units of a conjugated diene,   (ii) 0.1 to 10% of an amine-modified epoxy compound and   (iii) 0.05 to 12% of a blocked polyisocyanate.
Patent GB-809352-A (GB)
Abstract: 809,352. Laminates; coated paper-felt. ARMSTRONG CORK CO. April 26, 1957 [Aprils 27, 1956], No. 13394/57. Classes 96 and 140. A floor or other surface covering comprises a wearing layer, for example of linoleum composi-, tion, polyvinyl chloride, oil paint, or rubber, and a felted backing comprising cotton fibres, 60- 80 parts and wood fibres, 40-20 parts, bonded with synthetic rubber, 15-40 parts. The cotton fibres may be derived from new cotton fabric cuttings, rags, cotton linters or mixtures thereof, and the wood fibres from virgin news print, old newspapers, woodflour, or mixtures thereof. The synthetic rubber may be butadienestyrene, butadiene-acrylonitrile or butadienevinyltoluen or any combination of these, the proportions of butadiene and styrene being preferably within the range 55: 45 and 45: 55. To the rubber is added an antioxidant and heat stabilizer such as di-beta-naphthylparaphenylenediamine, polymerized 1.2-dihydro-2.2.4-trimethylquinoline or a mixture of mono- and diheptyl diphenylamines. The fibres are mixed as slurries and sheeted on a paper machine after addition of the rubber as an aqueous dispersion. Alum, followed by aqueous ammonia, is added to the slurry to precipitate the rubber ; the alum also serves to prevent staining of the wearing layer, when this is a linoleum mixture which has to be heat cured, by wool or other proteinaceous matter in the cotton used. Other anti-staining agents which may be used are formaldehyde and dextrose, and the latter may be applied, as a 30 per cent aqueous solution, by roller or spraying to the upper surface of the wet sheet during formation. When the wearing layer comprises a linoleum composition this may be spread or calendered on to the backing, or bonded to it as a sheeted inlay, and then heat cured ; a plastic layer requires no curing. The cotton fibres are stated to supply strength and dimensional stability to the backing, and the wood fibres rigidity, indentation resistance, and clean-cutting properties. " Pickout " (transfer of backing materials to the linoleum face during processing) is avoided by using newsprint fibres ; where this is not important wood flour can be used, the product then being of less tensile strength but more flexible.
Patent GB-2068127-A (GB)
Title: Measuring movement
IPC: G04G21/02
Filed: 1981-01-05
Abstract: Apparatus for measuring movement e.g. of scratching of patients suffering from itching diseases generates a movement-detection signal and measures a cumulative total of time intervals during which the magnitude of the movement-detection signal exceeds a predetermined threshold value. An electromagnetic stepper motor (11) has an arm (14) extending from its rotor (13), such that scratching motion rotates the rotor. Electrical signals are generated in the coils (12) of the stepper motor (11) and compared with a reference voltage by a monostable circuit (17). During intervals when the signals are greater than the reference voltage, an actuator (19) holds a sprung restraining arm off the balance wheel of a watch so that the watch records the cumulative total of scratching time. In other arrangements the criterion for recorded motion may be frequency and other movements e.g. vehicle cab vibrations may be measured. <IMAGE>