baber/WOPTO huggingface dataset:
Patent GB-1378204-A (GB)
Title: Isomerization process
IPC: C07C9/16
Filed: 1972-07-20
Abstract: 1378204 Isomerizing hydrocarbons UNION CARBIDE CORP 20 July 1972 [21 July 1971] 33942/72 Heading C5E The normal pentane and hexane in a feedstock of mixed hydrocarbons are isomerized by mixing  the feedstock with hydrogen, passing it through a reactor containing a composite catalyst comprising an isomerizing zeolite component and a hydrogenating component, condensing the effluent and passing the condensate through a bed of adsorbent selective for normal paraffins, subsequently desorbing the adsorbed normal paraffins with a stream of hydrogen, and mixing this stream of hydrogen and normal paraffins with the feed to the reactor. As shown, a light naphtha is fed through line 10 and heater 13 to tank 62, where it is mixed with hydrogen and recycled normal paraffins. This mixture is fed to isomerizer 20 which contains a zeolite-andpalladium catalyst in which the zeolite is zeolite Y and has been ion-exchanged with a rareearth compound and an ammonium salt and calcined. The effluent from the isomerizer is cooled at 70 and separated at 72 into a gasphase (hydrogen and light hydrocarbons), and a liquid-phase. This liquid passes by line 60 and heater 14 to adsorption bed 18 containing calcium zeolite A. Normal hydrocarbons are adsorbed and branched-chain hydrocarbons emerge at 24, taking with them hydrogen purged from the bed. These are cooled at 30 and separated at 32, and the branched-chain hydrocarbons recovered by line 34. Gases from both separators and make-up hydrogen from line 38 are heated at 46, and passed through bed 22 to desorb normal hydrocarbons and carry them into tank 62 for recycle. When the adsorption bed 18 is saturated, the valves shown are operated for adsorption in bed 22 and desorption from bed 18. When desorption begins, the first material to emerge from the bed is the vapour remaining in it from the adsorption step. This can be bypassed round the isomerization by line 61, and the effluent switched to tank 62 when its content of normal hydrocarbons rises.
Patent GB-988704-A (GB)
Title: Nitride bearing ductile steel
IPC: C22C38/18
Filed: 1961-09-22
Abstract: A nitride bearing ductile steel consists of:- .C.0.04 -0.25%, .Si.0.01 -0.50%, .Mn.up to 1.00%, .P.less than 0.035%, .S." " 0.035%, .precipitated AlN.0.03 -0.12%, .metallic Al (in solution).0.003-0.36%, .with or without. .one or more of. .Ni, Cr, Mo, V, Cu.trace to 1% each, .and/or B.trace to 0.1%, ..the balance being iron The steel may be heated to between the A3 transformation point and 1050  DEG C., e.g. 930  DEG C., and rapidly cooled, e.g. in air, oil or water, and then tempered at between 150  DEG C. and the A1 transformation temperature, e.g. 650  DEG C.  Specification 988,705 is referred to.
Patent GB-658412-A (GB)
Title: Improvements in or relating to the production of coffee or tea-flavoured beverage powders
IPC: A23F3/16
Filed: 1947-12-24
Abstract: Powders which dissolve in aqueous liquids to form coffee- or tea-flavoured beverages are made by lixiviating coffee or tea with an aqueous solution of citric acid, concentrating the extract so obtained and neutralizing it with an alkaline sodium compound, adding sugar, milk, and malt extract, neutralizing with an alkaline sodium compound, and converting to a dry powder.  In examples is described extracting a batch of coffee twice by hot citric acid solution, with neutralizing by means of sodium carbonate solution or a sodium citrate, sodium biphosphate, citric acid solution after each extraction, pouring the extract so formed over ground freshly-roasted coffee, adding burnt sugar, concentrating the liquid, mixing with this liquid a concentrated filtered hot-water extract of shredded barley malt to which sugar and skimmed milk powder or full-cream milk powder and concentrated milk have been added, adding a solution of sodium carbonate and citric acid or of sodium citrate, sodium biphosphate and citric acid, and drying the mixture in vacuo to a powder.
Patent GB-776525-A (GB)
Title: Improved process for the preparation of lithium calcium grease compositions
Filed: 1955-11-29
Abstract: A lubricating grease composition comprises a lubricating oil thickened to a grease consistency with a mixture of lithium and calcium soaps of fatty acids, the molar ratio of lithium soap to calcium soap in the mixture being between 2:1 and 8:1, the grease composition having been prepared by a process comprising the step of heating and mixing the soaps with the oil at a dehydration temperature below the melting temperature of the finished grease and cooling the grease so dehydrated.  The lubricating oil may be mineral oil, an ester of a dibasic acid (e.g. an ester of adipic or sebacic acid), a complex ester (formed, for example, by reacting an alcohol, a glycol and a dibasic acid) an ester of monobasic acid, a polyether, or a polymerized olefin.  The soaps may be derived from stearic, oleic, or hydroxy stearic acids, hydrogenated fish oil acids or beef or mutton tallow fatty acids. The lubricating grease composition may contain additional ingredients such as oxidation inhibitors (e.g. phenyl alpha-napthylamine), colour agents and tackiness agents, and the finished grease may contain free alkalinity.  The cooling of the dehydrated grease may be effected by the addition of cold lubricating oil, and the cooled grease is preferably subjected to high rates of shear (e.g. in excess of 100,000 reciprocal seconds) in a milling or homogenizing device.  In the examples, the preparation of greases according to the invention is described, the ingredients employed being mineral lubricating oil, tallow fatty acids (or cotton-seed oil fatty acids or hydrogenated fish oil fatty acids) lithium hydroxide monohydrate and hydrated lime. In a further example, a grease according to the invention is prepared from di - 2 - ethylhexyl sebacate, tallow fatty acids, lithium hydroxide monohydrate and hydrated lime.
Patent GB-618999-A (GB)
Title: Improvements in and relating to the production of dextran from sucrose by means of dextran-forming bacteria
IPC: C12P19/08
Filed: 1946-11-18
Abstract: In the process of producing dextran from sucrose-containing material by treatment with dextran-forming bacteria, synthetic p-amino-benzoic acid is added to the culture medium.  The bacteria employed is preferably Betacoccus arabinosaceus.
Patent GB-990663-A (GB)
Title: Insecticidal composition
IPC: A01N27/00
Filed: 1963-08-30
Abstract: An insecticidal composition comprises naphthalene admixed with 0,25-3% of a paraffinic hydrocarbon mixture containing 10% or less aromatic hydrocarbon content boiling within the range 65-320 DEG  C. The naphthalene may be derived from petroleum sources.  The composition may be shaped into moth balls.
Patent GB-467194-A (GB)
Title: Improvements in or relating to air filters
IPC: F02M35/024
Filed: 1935-12-12
Abstract: 467,194. Silencing gaseous currents. BOSCH AKT.-GES., R. Dec. 12, 1935, No. 34450. Convention date, Dec. 21, 1934. [Class 7 (ii)] [Also in Group XXVIII] Air enters a cylindrical filter c axially and leaves it radially ; the filter is closed at the end by an imperforate plate g, and is enclosed by a casing a which by its tapering shape and felt &c. lining silences the flow; the outlet h is in line with the inlet, which is lined with felt &c. The filter may comprise spirals of brass strip, and is surrounded by a fine filter f of wire fabric.
Patent GB-507438-A (GB)
Title: Improvements in the production of books with spacing folds between adjacent book sections
IPC: B42B2/00
Filed: 1937-12-14
Abstract: 507,438. Sewing-machines. COLDITZ, L. Dec. 14, 1937, No. 34637. Convention date, Dec. 19, 1936. [Class 112] A book with spacing folds at the back between adjacent sections is produced in a book-stitching machine by means which, during the interval between the stitching of successive sections, automatically forms the material for the spacing fold into a loop in front of the section which has been stitched, the loop being secured as a flat fold between that section and the next to be stitched. In the arrangement shown, the material 8 for forming the spacing folds is advanced by means of fingers 11 carried on a lever 10, after the work-supporting saddle 2 has been swung aside following the stitching of one section, to form a loop of the kind shown. A rocker 13 is then advanced to flatten the loop and move the stitched section forward to make space for the saddle 2 to present a new section 1 to be stitched. The lever 10 may be actuated with the rocker 13 by a link 15 engaging a pin on the lever 10. The backing material 6 may be formed into a loop after the completion of one book, to leave a free length before the stitching of a second book is commenced, by means of a plunger 24 actuated by a lever 16; the link 15 is disconnected from the lever 10 during this operation. The lever 10 may be operated manually or by treadle, as is the lever 16. The spacing material 8 may be fed to the machine in suitable lengths instead of continuously.
Patent GB-900511-A (GB)
Title: Cross-over apparatus for use in oil and gas wells
Inventor: FENTIMAN DENIS RICHARD
IPC: E21B43/14
Filed: 1960-10-10
Abstract: 900,511. Wells. RICHARDSON Inc., SID. W. Oct. 10, 1960, No. 34659/60. Class 85. A well having upper and lower production zones 11, 12 comprises tubing 17 extending from the si rface and connected to a tubing section 15 having receivers 19, 20 for removable flow control inserts and ports 24, 25, a tubing extension 21 connecting one of the receivers to the zone 11, a tubing extension 18 connecting the other of the receivers to the zone 12, and packing 22, 23. In Fig. 2, an insert A is latched within the receiver 20, the flow from the zone 12 passing through the extension 18, the receiver 19 and tubing 17, and the flow from the zone 11 passing up the extension 21 through bores 57, 59 in the insert into the section 15 and out of the section through the ports 25 into the space outside the section and tubing. In Fig. 1, an insert B is latched within the receiver 20 and an insert D acting as a plug is latched within the receiver 19, the flow from the zone 11 passing up extension 21 and bore 71 in the insert B into the tubing 17, and the flow from the zone 12 passing up through the extension 18 and receiver 19 through the ports 24 into the receiver 20 and out from the section through ports 25 into the space about the section and the tubing. A modified insert may be inserted in the receiver 19 whilst an insert B is in the receiver 20 so that the zone 12 is cut-off.
Patent GB-1057270-A (GB)
Title: Slide rest for large lathes
IPC: F24H1/10
Filed: 1965-08-13
Abstract: 1,057,270. Lathes. H. A. WALDEICH G.m.b.H. Aug. 13, 1965 [Aug. 25, 1964], No. 34785/65. Headings B3B and B3T. A lathe comprises a carriage 5 carrying a cross-slide 15 and a rotatable part 19 carrying the tool 22, there being one or more intermediate slides 9 having guiding surfaces on their upper and lower sides, each slide being shorter than the guide on which it moves. The slides form a pyramid structure as illustrated in Fig. 1 (not shown) which can be of pyramid form also in the plane of Fig. 2 (not shown). Intermediate slides may contain change-speed gearing so that slides may be fed at different speeds in different directions to give a. fine feed speed.
Patent GB-1070123-A (GB)
Title: Method and apparatus for detecting leaks
IPC: G01M3/20
Filed: 1965-08-13
Abstract: 1,070,123. lonization manometers. GENERAL ELECTRIC CO. Aug. 13, 1965 [Sept. 14, 1964], No. 34812/65. Heading H1D. [Also in Division G1] An ion pump-detector for use as a leakdetecting apparatus (see Division G1) includes, in one embodiment (Fig. 2, not shown), a pair of disc-shaped cathodes (2, 3) forming the ends of an evacuable envelope, the side walls of which are formed by cylindrical collectors (5, 6) symmetrically positioned on either side of an annular anode (4), the electrodes being insulated one from another by annular ceramic members (7, 8, 9, 10) which complete the envelope, each ceramic member having a re-entrant portion. The device is contained in a cylindrical electromagnetic coil (14) or permanent magnet. One of the cathodes (3) has a central aperture for connection to a system to be evacuated. The electrodes are connected to an A.C. or D.C. circuit including a switch for changing the mode of operation from triode-type to diode-type. In a modified arrangement (Fig. 4, not shown) the end discs are used as collectors, the cylindrical electrodes are replaced by apertured plates and are used as cathodes, and the annular anode is replaced by an apertured disc. A third embodiment uses a conventional glass or vitreous envelope containing opposed disc-shaped cathodes with an annular anode between them, and a cylindrical collector which surrounds the other electrodes. The final embodiment includes a flanged can to which a circular cover-plate can be removably bolted. The electrodes are rectangular, the anode being of honeycomb configuration and being flanked by honeycomb-type cathodes, having smaller apertures than the anode. Planar collectors are located beyond the cathodes.
Patent GB-1432842-A (GB)
Title: Semi-conductor detector and method of its manufacture
IPC: H01L23/485
Filed: 1973-07-20
Abstract: 1432842 Semi-conductor radiation detector COMMISSARIAT A L'ENERGIE ATOMIQUE 20 July 1973 [21 July 1972] 34825/73 Addition to 1368515 Heading H1K The guard ring of a Schottky barrier radiation detector as claimed in claim 1 of Specification 1,368,515, having a substrate of silicon is insulated from the substrate by a thin layer formed by surface oxidation of the silicon in a dry atmosphere at a temperature such as not to reduce the carrier life time in the silicon. The silicon substrate may be of N-type and have (111) major faces. The ohmic contact 4 may be of an alloy and the Schottky contact 5, guard ring 6 and electrode 7 may all be of gold. The insulation 26 may be of resin or silicon oxide and insulation 11 made up from resin bodies and layers.
Patent GB-900854-A (GB)
Title: Disazo-dyestuffs insoluble in water and process for their manufacture
IPC: C08K5/23
Filed: 1958-10-30
Abstract: The invention comprises water-insoluble disazo dyes of formula <FORM:0900854/IV (b)/1> wherein X is an alkyl or alkoxy group and R is an aromatic radical, the dyes being free from groups imparting solubility in water.  They are prepared by coupling 1 mol of a tetrazo-compound of a 3 : 31-dialkyl- or dialkoxy-benzidine in substance or on the fibre with 1 mol of a 2 : 3-hydroxynaphthoic acid arylide and 1 mol of a 3-arylaminophenol, the components being free from water-solubilising groups.  The dyes give black shades on cellulose fibres.  In Examples: (1) the dye 2 : 3-hydroxynaphthoylaminobenzene \sM 3 : 31-dimethoxy-benzidine --> 3-hydroxydiphenylamine is prepared; (2) dyes of the above formula are formed on cotton fabrics using conventional printing and dyeing processes.  A number of alternative reactants are specified.
Patent GB-1482444-A (GB)
Title: Polymerisation of ethylene
IPC: C07F7/08
Filed: 1974-08-08
Abstract: 1482444 Polymerization of ethylene; aluminosiloxanes ETHYLENE PLASTIQUE SA 8 Aug 1974 [21 Aug 1973] 34972/74 Headings C3P and C3S Ethylene is polymerized or copolymerized at a pressure greater than 500 bars and at 160 to 280 C. in a single liquid phase in the presence of a catalyst comprising (a) a compound of the formula where R 1 -R 5  are the same or different and are alkyl radicals containing 1-10 carbon atoms and R 5  may also be the radical where n is 1 or 2 and (b) a titanium trichloride, the atomic ratio of Al in (a) to Ti in (b) being in the range of 1 to 10. In the examples ethylene is homopolymerized in the presence of a compound corresponding to the above formula in which n = 1 and R 1 -R 5  are methyl; R 1 -R 3  are methyl and R 4  and R 5  are ethyl n-butyl, isobutyl or n-octyl; R 1  and R 2  are methyl and R 3 -R 5  are ethyl or R 1  and R 2  are methyl, R 3  and R 4  are ethyl and R 5  is -OSiR 1 R 2 R 3 , together with TiCl 3 , TiCl 3 <SP>1</SP>/ 3 AlCl 3  or the reaction product of one of these with magnesium ethylate and the silicon-containing compounds are prepared by reaction of trimethyl silanol and triethyl aluminium or the reaction of octamethyltetrasiloxane and aluminium triethyl.
Patent GB-1524423-A (GB)
Title: Method of erecting offshore structures and offshore tower construction therefor
IPC: E02B17/02
Filed: 1976-08-23
Abstract: 1524423 Offshore structures RAYMOND INTERNATIONAL INC 23 Aug 1976 [6 Oct 1975] 35026/76 Heading E1H An offshore structure is erected by firstly installing onto the seabed a support structure having a plurality of vertical columns and then lifting a platform up onto the columns by means of a plurality of legs depending from at least one beam extending between the tops of two of the columns and associated jack-up mechanisms. As described the support structure comprises four vertical columns 26, 28 and a base 30 and it is floated out to be installed on the seabed at a predetermined site. Between each pair of columns 26, 28 extends a space frame beam 38 and 40 which beams are located on pedestals 42, 44 and from each beam 38, 40 depend a plurality of legs 70 which extend through jack-up mechanisms 68. A working platform which has been fitted out e.g. with crew accomodation 56 and machinery spaces 60 is then floated out and located between the columns 26, 28. Thereafter the legs 70 are lowered so as to engage one way slip mechanisms 72 which permit relative downward movement only of the legs 70. When the platform has been fully raised, it is secured to the two beams 38, 40 along their lengths e.g. by welding and the legs 70 and jack-up mechanisms 68 are removed for use elsewhere. The beams 38, 40 may be installed on top of the columns 26, 28 after the support structure has been floated out and located in situ and, as an alternative to using a buoyant platform, the platform may be floated out on a barge. The support structure may be of the tilt-up type.
Patent GB-176299-A (GB)
Title: Buttonhole cutting mechanism for sewing machines
IPC: D05B37/02
Filed: 1920-11-29
Abstract: 176,299. Fairweather, W., (Singer Manufacturing Co.). Nov. 29, 1920. Button-hole sewing- machines; button-holes, cutting. - A cutting- punch 61 is of uniform cross-section and is curved concentric with the pivot of the cutter - carrying lever 59. It can be adjusted longitudinally and is clamped by a plate 59b. An adjustable abutment 59f is fixed in contact with the the rear end of the punch. The die 62 is adjustably secured to the lever 60 by the two screws 62<b>.
Patent GB-321082-A (GB)
Title: Improvements in and relating to saxophones
IPC: G10D7/08
Filed: 1928-11-28
Abstract: 321,082. Chiron, H. M. Oct. 15, 1928, [Convention date]. Addition to 305,162. Saxophones. - The keys of a saxophone &c. as described in the parent Specification are interconnected by means of fingers x secured to the pads and engaging under arms y on the adjacent pads. An additional long key f is provided to operate the key c.
Patent GB-647838-A (GB)
Title: Support for dynamo-electric machines
IPC: H02K5/26
Filed: 1947-12-31
Abstract: 647,838. Belt gearing. POESCHL, R., and POESCHL, W. Dec. 31,1947, Nos. 35171 and 35172. Convention dates, Nov. 4, 1946 and Nov. 29, 1946. [Class 80(i) ] [Also in Group XXXV] A machine pivotally supported for using the reaction torque for adjustment of the belt tension has a member partly enclosing the belt so arranged as to permit adjustment of the distance between the rocking and machine axes. In Fig. 1 the pulley cover 8 is adjustably secured to the motor body and has a series of holes (not shown) in its outer end for the pivot 3 and a corresponding plate assembly is arranged for the pivot at the other end of the machine. In Fig. 8 the motor housing is closed by discs 20 having a plurality of openings 29 so that the pivot 25 may be adjusted. The belt opening 23 may have rounded edges or rollers to prevent chafing.
Patent GB-482433-A (GB)
Title: Improvements relating to the coupling of railway or like vehicles
IPC: B61G1/08
Filed: 1937-12-20
Abstract: 482,433. Automatic couplings for vehicles. KILLEEN, M. J. Dec. 20, 1937, No. 35181. Convention date, March 6. [Class 103 (v)] A duplicate automatic coupling for railway &c. vehicles comprises on each vehicle a pivoted hooked bar 3 adapted, in the act of coupling, to be swung upwardly and then to drop into engagement with an abutment 2 on the opposed vehicle, each vehicle being provided with a pivoted uncoupling flap 6 which has two hookengaging edges 6a, 6b arranged, when the flap is operated, to engage the hooks of the two vehicles so that both hooks are released simultaneously. In the construction shown, each hook is pivoted to the intermediate of three abutments 2, 2a, 2b, which, with longitudinals 1, 1a and 1b, form a coupling framework, and which may be engaged successively by an opposed hook as the two vehicles approach. Inclined guide-plates 4, 4a and 4b are associated with the abutments 2, 2a, 2b to raise the hooks into position to engage the abutments, rollers 3a being fitted to the ends of the hooks to assist the guiding action.
Patent GB-1119418-A (GB)
Title: Condition-responsive control apparatus
IPC: H02H7/085
Filed: 1965-08-17
Abstract: 1,119,418. Electric protective systems. TEXAS INSTRUMENTS Inc. 17 Aug., 1965 [17 Aug., 1964; 3 Feb., 1965], No. 35205/65. Heading H2K. [Also in Division H3] An arrangement responsive to a variable condition, e.g. temperature, to control a load device, e.g. an electric motor, comprises a voltage divider for connection across an A.C. source 11. The divider including a variable impedance, e.g. a thermistor T 1  embedded in the windings of the motor, and a reference impedance R11. A thyristor SCR1 is effective to control energization of the load device and is controlled by a switch, eg. a transistor Q1 connected to the junction 21 between the impedances T1, 31. The arrangement functions as a regenerative circuit to provide an adequate differential in the response of the thyristor. In the arrangement shown, the thyristor SCR1 is normally conducting so that a relay RY1 is energized with its contacts RY1B, RY1C open and its contacts RY1A changed over to complete a circuit L6, L7 for the load device. Three voltage dividers with positive temperature coefficient thermistors T1, T2, T3 are provided and when overheating occurs, the potential at a junction 21, 23 or 25 becomes positive and causes the associated transistor Q1, Q3 or Q5 to conduct rendering the thyristor SCR1 non-conductive. The relay RY1 releases to open the load circuit and its contacts short circuit differential resistors R21, R23, R25 to increase the forward bias on the transistor so that a substantial fall in the resistance of the affected thermistor is necessary before the thyristor can conduct. Further voltage dividers with negative temperature coefficient thermistors may be provided in conjunction with PNP transistors, Fig. 4 (not shown). In this case the differential resistors cease to be shunted when the relay releases. By using isolating diodes, two such arrangements with a common thyristor are operative on alternate half cycles to control two load devices, Fig. 5 (not shown). In a further arrangement, the transistors are connected in series and normally conduct to render the thyristor conducting, Fig. 6 (not shown). Fig. 7 (not shown) illustrates a further arrangement in which a transistor trigger circuit controls the operation of the thyristor and provides the operating differential.