baber/WOPTO huggingface dataset:
Patent GB-844283-A (GB)
Title: Improvements in methods of separating uranium and thorium from each other
Inventor: MAHUT RENE
IPC: C01F15/00
Filed: 1957-01-22
Abstract: Uranium and thorium values are separately recovered from a raw material containing them by dissolving the raw material in a slight excess of mineral acid, adding a soluble sulphate in amounts at least equal to the uranium and thorium present, warming the solution to a temperature between 25 and 60 DEG C. and neutralizing to a pH of 2.8 to 5.2 whereupon thorium is precipitated in the form of a basic sulphate leaving the uranium in solution.  The precipitating sulphate is preferably that of sodium, ammonium or magnesium.  Neutralization may be effected by means of sodium carbonate, ammonium carbonate, ammonia or soda. According to Examples (1) uranothorianite is attacked with nitric acid at 40% strength at 80 DEG C. and after dilution with water the resulting solution is treated with anhydrous sodium sulphate and warmed to 35 DEG C.  Neutralization is effected with sodium carbonate solution to a pH of 3.3.  The basic thorium sulphate precipitate is washed with sodium sulphate solution and may be redissolved in nitric acid and reprecipitated to decrease the uranium content thereof.  The sulphate cake may be converted to thorium hydroxide by treatment with caustic soda at 80 DEG C. (2) Thorium is precipitated from an acid solution as in (1) above and the residual thorium in solution is finally precipitated by the addition of oxalic acid.
Patent GB-979427-A (GB)
Title: Improvements in products for refining steel during casting
IPC: C21C7/076
Filed: 1961-01-20
Abstract: A product for refining steel during casting, e.g. by introducing into the steel in a ladle or an ingot mould, comprises (a) one or more of a fluoborate, fluosilicate, fluotitanate and/or an alkali metal fluoride, (b) boric acid and/or an alkali metal borate, and (c) one or more reducing agents selected from C, Si, Mn and Al.  The reducing agent(s) may be incorporated in the steel in statu nascondi by including in the product one or more fluorides of Si or Mn or Al and/or one or more carbides.  An example is given of composition: 80% anhydrous borax, 10% NaF, 1% each of Na2CO3 and K2CO3, 5% graphite and 3% lamp black.
Patent GB-738601-A (GB)
Title: Improvements in or relating to damping systems for rotors
IPC: F16F7/10
Filed: 1953-01-27
Abstract: In a self-centring centrifugal rotor mounted on a vertical, flexible shaft coupled to an elastically-supported driving unit the natural frequencies of oscillation of the driven and driving components are not a simple multiple of one another and the weight of the driving component is at least equal to that of the driven component. Specification 738,600 is referred to.
Patent GB-1156475-A (GB)
Title: Sulphur-Containing Derivatives of 6-Membered Heterocyclic Compounds
Inventor: WINTER M
IPC: A23L27/20
Filed: 1966-05-02
Abstract: 1,156,475. Sulphur containing derivatives of 6-membered heterocyclic compounds. R. FIRMENICH, G. FIRMENICH, R. E. FIRMENICH, and F. H. FIRMENICH, [trading as FIRMENICH & CIE.]. 2 May, 1966 [30 April, 1965; 18 April, 1966], No. 2376/69. Divided out of 1,156,472. Heading C2C. [Also in Division A2] The compounds of the invention are pyridine and pyrazine derivatives having the following general formulµ wherein, when n=0, R represents an alkyl group or an acyl group; when n=1, R represents an alkyl group having at least 2 carbon atoms or an acyl group; and, when n=2, R represents an alkyl group having at least 2 carbon atoms or a furfuryl group; wherein n=0, 1 or 2, R 1  represents a hydrogen atom, an alkyl group, an acyl group or a furfuryl group, and R 2  represents a hydrogen atom or a methyl group, provided that when n = 0 then R 1  and R 2  cannot both be a hydrogen atom or a methyl group; and wherein R represents a hydrogen atom, an alkyl group, an acyl group or a furfuryl group. All the above compounds have been found to possess useful properties as flavouring agents for foodstuffs. Examples describe the preparation of 2-methylthio-pyridine, 2-ethylthio-pyridine, (pyridyl - 2) - thiol acetate, 2 - (pyridyl- 2) - ethyl - ethyl sulphide, (pyridyl - 2)- methyl - ethyl sulphide, (pyridyl - 2) - methanethiol acetate, according to Formula (I); 2 - methylpyrazinyl - 3, - 5 and - 6 furfuryl sulphide (mixture), pyrazinyl methyl mercaptan, pyrazinylmethyl - methyl, and - ethyl sulphides, pyrazinylmethyl - furfuryl sulphide, pyrazinylmethylthiol acetate, 2 - pyrazinylethyl mercaptan, 2 - pyrazinylethyl - methyl, -ethyl and -furfuryl sulphides, and 2-pyrazinylethylthiol acetate according to Formula (II); and 2,3 - Dimethyl - 3 - mercapto - pyrazine, 2,5 - Dimethyl - 3 - methylthio, - 3 - ethylthio, -3-furfurylthio and -3-acetylthio pyrazines, according to Formula (III).
Patent GB-395049-A (GB)
Title: Improvements in and relating to photo-electric cells
IPC: H01J40/04
Filed: 1932-01-27
Abstract: 395,049. Photo-electric cells. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Jan. 27, 1932, No. 2517. Convention date, Jan. 27, 1931. Drawings to Specification. [Class 39 (i).] A photo-electric cell is surrounded by a casing, the intermediate space therebetween being exhausted. The casing may consist of a reflecting material or of a translucent or transparent material, a part of the internal surface of which is silvered.
Patent GB-1524121-A (GB)
Title: R bracelet
IPC: A44C5/00
Filed: 1976-01-22
Abstract: 1524121 Articulated bracelets R MAGNIN 22 Jan 1976 [27 Jan 1975] 02521/76 Heading A3H The visible links 1, 1', 1" of a bracelet are connected by connecting links 2, 2' each provided with two hooked ends 2a, 2b; 2'a, 2'b retained within the visible links 1, 1', 1" by mutual coaction. Each visible link 1, 1', 1" has a rectangular opening 1a, 1'a receiving the hooked ends. The bracelet is assembled and disassembled as shown in Fig. 2, and the edge 2c of the connecting link 2 coacts with the face 2'd of the connecting link 2' as shown in Fig. 3, to retain the connecting link 2 within the links 1, 1'.
Patent GB-1505063-A (GB)
Title: Gas venting in the mould of a continuous casting machine
IPC: B22D11/08
Filed: 1977-01-24
Abstract: 1505063 Continuous casting UKRAIN N I INST METALL and NAUCH - PROIZVODST OBIEDINE TULACHERMET 24 Jan 1977 02701/77 Heading B3F To allow gases to escape from a mould 1 as it is filled with metal through a refractory conduit 2 from a tundish 3, a dummy bar head 5 has a duct 6 through it and a tube 7 extending from the duct to where its open end is separated from the mould wall by a gap 8 for allowing gases to be vented. The duct may be horizontal and the tube curved through 90 degrees so that it turns up towards its open end adjacent the mould wall. The mould may be inclined.
Patent GB-304798-A (GB)
Title: Methods for the cracking of petroleum oils and apparatus therefor
Filed: 1929-01-26
Abstract: 304,798. Standard Oil Development Co., (Assignees of Loomis, N. E.). Jan. 27, 1928, [Convention date]. Hydrocarbons, cracking.-In a process for cracking oils of the kind in which oil passes under pressure from a heating zone to a digestion zone and thence with reduction of pressure to a dephlegmation zone, cool oil is introduced into the stream of cracked oil at a place located between that where pressure is reduced and that where the stream leaves the digestion zone. A pump 1 delivers oil by a pipe 2 to a cracking coil 3 delivering into an insulated drum 7, from which the cracked material mixed with crude oil from a pipe 40 passes through the pipe 8<1> with reduction of pressure to a separator 11. Tar is removed by pipe 13 and the vapours pass by pipe 12 to the rectifying column 17, containing a steam heating coil 24 and coils 21, 22, in which the crude oil circulates. The heavy fraction passes by the pipe 27 to the tank 28, and mixed with oil from pipe 31 is returned to cracking coil 3. The light fraction is withdrawn through the pipe 23.
Patent GB-210978-A (GB)
Title: Improvements in screens and windows for use on motor vehicles
IPC: B60J1/00
Filed: 1923-01-31
Abstract: 210,978. Calso Hood Co., Ltd., Smith, A. V., and Cottom, W. J. Jan. 31, 1923. Windscreens.-In a windscreen or window, particularly for the rear seat of a motor-vehicle of the kind comprising two sections which are adapted either to form a transverse screen or to be used separately as side screens opening and closing with the doors, a support is provided for the pivotally mounted corner of each section i which is arranged to move with the door when the section is used as a side screen or to remain stationary when the screen is arranged transversely. In the construction shown the support consists of a plate f mounted at h upon the hinge-pin c of the door e and provided with a socket j or a peg for engagement with a peg or socket on the screen-section i. When a second peg k and socket l on the screen section and door are brought into engagement, the door, screen section and plate f move in unison, but, when the screen sections are secured in the transverse position as shown in Fig. 1, the plate f remains stationary when the door is opened or closed.
Patent GB-675795-A (GB)
Title: Apparatus for use in joining the abutting edges of floor coverings such as carpets and the like
IPC: A47G27/04
Filed: 1950-02-04
Abstract: 675,795. Joining floor coverings by adhesive tape. FLUCK, O. P., and KERVILLE, G. M. Jan. 25, 1951 [Feb. 4, 1950], No. 2942/50. Class 73. Sections of floor coverings such as carpets are joined by adhesive tape applied to the back of the seams by a portable device comprising a base plate 1, an upstanding central support 2, adhesive reservoir 9 and tape applying roll 36. An upper plate 4 and handle assembly 3 are pivoted at 6 to the central support 2 so that the heights of the forward end of the plate 4 can be adjusted for different section thicknesses. A restricted opening 13 of the easily removable reservoir 9 has a valve 14 closed by a spring 21 and controlled by a trigger 16 also provided with a locking device 48. Tape T from a roll R supported on a removable shaft 33 in cheeks 34 passes through a guide 35 and under the spring-urged presser roll 36. Shafts 24 having freely rotatable spiked rollers 32, Fig. 2, are mounted in bearings 26 pivoted vertically to lever arms 27 which, being connected by a toggle gear 28, can be varied in inclination by a knob 31 through mechanism 29. The lever arms 27 are pivoted at 42 to the plate 4 and springs 41 urge downwards the ends mounting the shafts 24. The rollers 32 can be raised when desired by turning a grip 44a on a spindle 44 which mounts cams 43 contacting the arms 27 to compress the springs 41. In use, the rollers 32 are raised and carpet sections inserted into the guideways. The device is drawn to the right, Figs. 1, 2, and the rollers 32 draw the carpet edges into abutment and at the same time the trigger 16 is operated to apply adhesive to the abutting edges over which tape T is pressed by the roller 36. If desired, the apparatus need not be made portable, means being provided to draw the sections through the guideways.
Patent GB-386136-A (GB)
Title: Improvements in or relating to amusement boats
IPC: B63H5/125
Filed: 1932-02-01
Abstract: 386,136. Detachable installations. BRITISH MOTOR BOAT MANUFACTURING CO., Ltd. and HARRISON, C. H., 24, Harrison Street, London. Feb. 1, 1932, Nos. 2944 and 20595. [Class 114.] A self-contained steering and propelling unit for motor-boats has its propeller 3 carried by a vertical column 7 suspended in a casing 5 attached to the bottom of the boat, the upper part of the column carries a sprocket wheel 9 which is connected by a chain 15 with a sprocket 14 attached to the shaft 11 carrying a bevel wheel 13. This bevel wheel meshes with a second bevel wheel 17 on a steering column 16. Alternatively, the chain-and-sprocket gear may be replaced by bevel wheels on the shaft. Preferably gear ratio between the steering wheel and the column is 1-1.
Patent GB-553929-A (GB)
Title: Improvements in or relating to variable-pitch propellers
IPC: B63H3/08
Filed: 1942-03-06
Abstract: 553,929. Fluid-pressure servomotor-control systems. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. March 6, 1942, No. 2956. Convention date, March 8, 1941. [Class 135] [Also in Groups XXXIII and XXXVIII] Electrical controlling means for a servomotor operating the piston adjusting mechanism of a propeller is itself controlled by a hand lever, the position of which gives an indication of the pitch. The pitch adjusting linkage 3 is actuated by a fluid pressure piston and cylinder 4, 5 controlled by a valve comprising a piston member 30 and sleeve 31 connected to links 29, 34 pivoted at 28 and 33 respectively and connected to a nut 25 and to a member 35 moving with the piston 4. The nut is mounted on a screw 26 which may be rotated by a reversible electric motor 36 and which carries a rack 24 engaging a toothed wheel 20 provided with three brushes 17, 18, 19 cooperating with conducting segments 13, 14 on a disc 12 which may be turned in either direction by an electric motor 11 in circuit with a rheostat 9 adjusted by a hand lever so that the movements of the disc correspond with the movements of the hand lever. The segments 13, 14 and brushes 17, 18, 19, and the armature and field 37 of the motor 36 are in circuit with switches A, B actuated by solenoids 38, 39. On turning the handle 7 in either direction, the disc 12 is turned to connect the brushes with say, the segment 13 closing a circuit from the mains 40 through the solenoid 38, segment 13 and brush 18 to close the switch A thereby closing a holding circuit for the solenoid through the brush 17 and closing the circuit of the motor 36. The nut 25 is thereby moved to the right to actuate the valve piston 30 to admit pressure fluid to the right-hand side of the piston 4 effecting pitch adjustment. The movement of the piston causes movement of the valve sleeve 31 to the right to cut off the fluid supply. At the same time the rack 24 turns the wheel 20 to move the brushes from contact with the segment 13 to open the switch A and stop the motor C. Signal lamps 52, 53 of different colour are illuminated while the switches are closed.
Patent GB-1137842-A (GB)
Title: Mouldable refractory materials
Inventor: HERBST HAROLD JOHN
IPC: C04B33/13
Filed: 1966-01-21
Abstract: 1,137,842. Refractories. MONSANTO CO. 21 Jan., 1966, No. 2968/66. Heading C1J. A mouldable refractory composition consists of (a) 1-10 wt. per cent water, (b) 1-8% of an acid of an oxide of phosphorus or a mixture thereof, (c) 1-8% of a polycarboxylic acid and (d) the balance being one or more refractory metal oxides, with or without 3- 15% of a refractory clay. The refractory oxide may be alumina, titania, chromia, hafnia or zirconia. The phosphorus acid may be ortho, pyro or meta-phosphoric acid or ortho, or pyro-phosphorus acid. Polycarboxylic acids specified are malonic, succinic, malic, maleic, fumaric, racemic, glutaric, adipic, citric, tricarballylic, phthalic, isophthalic, terephthalic, hemi-mellitic, trimellitic, trimesic, pyro-mellitic, mallophanic, prehnitic and mellitic acid.
Patent GB-158875-A (GB)
Title: Improvements in and relating to apparatus for distilling coal tar and like products
IPC: C10C1/04
Filed: 1921-01-24
Abstract: 158,875. Ab-der-Halden, C. Feb. 9, 1920, [Convention date]. Hydrocarbons, distilling. -In distilling coal-tar and other high-boiling liquids, in presence of steam, the tar, preheated in a condenser 4, passes by a pipe 12 into a column 2, divided by gratings, lattices &c. and surmounting a still 1 which is heated preferably by gaseous fuel, the supply of which may be regulated by a thermostat. Superheated steam is supplied by a pipe 15 and residues are removed by a pipe 13. The vapours pass from the top of the column 2 to a vessel 3 in which the heavy fractions condense. A small heat - exchanger may be interposed in the path of the vapours, and steam may be injected into the vessel 3 to regulate the composition of the fraction obtained. The vapours then pass through the condenser 4, vessel 6, and a reflux condenser 7. The lightest fractions are condensed in a condenser 8. A second pipe 14 connects the condenser 4 and column 2 to allow passage of steam and light vapours generated in the preliminary heating of the tar, &c.
Patent GB-1484815-A (GB)
Title: Separator apparatus for separating liquids from a liquid mixture
IPC: B01D17/02
Filed: 1975-01-23
Abstract: Two vessels (10, 12) are positioned one above the other for separating oil, water and machining wastes from metal-cutting machine tools. The liquid/solid mixture to be purified is fed from the bottom vessel (10) by a pump and separation cyclone for separating off the solids to a feedline (27) in the upper vessel (12). In the upper vessel (12) is situated a riser pipe (32), the bottom inlet end (39) of which is arranged close to the bottom (28) of this vessel, but at a distance from the inlet of the feedline (27). The outlet of the riser pipe (32) is arranged to be height-adjustable. A liquid outflow (53) is situated at the top in the upper vessel (12) and is likewise designed to be height-adjustable, so that the outflow of the lighter liquid can be adjusted. <IMAGE>
Patent GB-489382-A (GB)
Title: Improvements in electric torches
IPC: F21L4/00
Filed: 1937-02-02
Abstract: 489,382. Electric -- battery lamps. GENERAL ELECTRIC CO., Ltd., and RICHARDS, S. W. Feb. 2, 1937, No. 3069. [Class 39 (ii)] In an electric torch comprising an openended rigid or substantially rigid casing 1 containing one or more cells 17, with a reflector 18 which carries the lamp holder 9 and forms a closure member secured at the open end of the casing, the lamp holder is provided with a part 13 which is adapted positively to engage the central terminal 16 of the adjacent cell in such manner that transverse relative movement between the lamp and the cell terminal is substantially prevented. The reflector 18 is provided with a neck 19 which is screw-threaded internally to engage external screw-threads on the lamp holder 9, and a lock-nut 20 is provided to maintain the latter in the set position when the filament is positioned correctly relatively to the reflector. The terminal-engaging member 13 has a screwthreaded extension sleeve 12 which houses a spring-pressed terminal 14 and is screwed into an insulating sleeve 10 held in the lower end of the lamp holder by a grub-screw 11. The rim of the reflector 18 is sheathed in rubber 22 and clamped between the end of the casing 1 and cover glass 6 when the aluminium cap 4 is screwed into position, a pivoted blade 28 being mounted on the casing to engage one of series of slots provided in the cap 4 to form a locking-device.
Patent GB-390291-A (GB)
Title: Improvements relating to the cooling arrangements of enclosed dynamo electric machines
IPC: H02K9/06
Filed: 1932-02-03
Abstract: 390,291. Cooling dynamoelectric machines. LAIGHPARK ELECTRIC MOTORS, Ltd., 65, St. Vincent Lane, Glasgow, and Y0UNG, G. S., 49, Lanfine Road, Paisley, Renfrewshire. Feb. 3, 1932, No. 3193. [Class 35.] In a dynamo-electric machine of the type described in Specification 322,363, [Class 35, Dynamo-electric generators &c.], the non-rotary parts 7, 8 of the diaphragm which isolates the stator and rotor windings from the external atmosphere and from the cooling air streams extend radially inwards so as to enclose the stator windings 9 and so as to form with the rotary parts 7a, 8a, air gaps 10 which are disposed radially nearer the axis of the rotor than the stator. The object of this arrangement is to prevent the accumulation of coal dust &c. in the air gaps 10 and so to render the machine flame proof. The faces 11 defining the air gaps are cylindrical and stepped. Fans 5, 6 direct the cooling air in separate streams through rotor ducts 4 and stator ducts 2.
Patent GB-100557-A (GB)
Title: Combined Feed-water Heater and Water-cooled Spark Arrester for Locomotives and the like.
Inventor: ANDERBERG ANDERS
IPC: F22D1/42
Filed: 1916-03-03
Abstract: 100,557. Anderberg, A. March 3, 1916. Spark - arresters.-A feed-water heater and spark-arrester consists of one or more rings of vertical tubes 2 connected to upper and lower annular headers 3, 4 placed around the base of the chimney 1 of a locomotive or like boilcr. The centre of the bottom header is closed by a plate 5. The blast pipe 6 projects into the space enclosed by the tubes. Plugs 9 in the top header and a door in the side of the bottom header afford access to the tubes. In a modification, the headers have removable cover-plates.
Patent GB-941430-A (GB)
Title: Improvements in rockets
IPC: F42B12/10
Filed: 1953-02-05
Abstract: 941,430. Ammunition rockets. J. N. STEBBING. Feb. 5, 1953 [Feb. 20, 1952], No. 3255/53. Heading F3A. In an armour-piercing type rocket an auxiliary grenade containing phosphorous or shrapnel is carried within the rocket and fired through the apertures made by the rocket. The rocket 10 consists of a collapsible nose 14, a body member 11 containing a cone-shaped, rapidly-burning, gas-producing charge 12, a body member 15 containing the charge detonating assembly 16 and the rocket fuel firing element 19, and a rocket chamber 18 adjoining nozzle 21. The cylinder 25, mounted along the axis of cone-shaped charge 12, containing the required filling, proceeds through the hole in the target produced by 12.
Patent GB-1443511-A (GB)
Title: Production of porous nickel plates
IPC: B22F5/00
Filed: 1974-01-24
Abstract: 1443511 Sintered porous nickel plates SHERRITT GORDON MINES Ltd 24 Jan 1974 [22 Feb 1973] 03314/74 Heading C7D A porous sintered Ni plate is made by sintering in a reducing atmosphere e.g. hydrogen, a slurry in a volatile liquid of -270 mesh Tyler Ni powder containing 0.7- 1.4 wt. per cent NiO. The NiO content of the Ni is provided either by adding nickel hydroxide or Ni-graphite to the Ni powder and heating in an oxidizing atmosphere, or by adding an oxidizing agent such as NH 4 NO 3  to the slurry or by heating the Ni powder in an oxidizing atmosphere or by treating the Ni powder in a warm aerated salt solution such as ammonium sulphate, chloride, acetate, carbonate, nitrate, hydroxide or NaCl, NaNO 3  or KCl. The preferred liquid used for the slurry is water and an organic binder such as halogenated gelatins, alkaline or ammonium salts of carboxy methyl celluloses, hydroxy alkyl celluloses, hydroxy ethyl cellulose and hydroxy propyl cellulose. The slurry preferably contains 25-75 wt. per cent solids and the plates are formed in a graphite mould and sintered at 1500-1700‹F, The sintered plates may be impregnated with Ni, Zn or Cu hydroxides to form battery electrodes.
Patent GB-338809-A (GB)
Title: Improvements in or relating to bulkheads for airships
IPC: B64B1/62
Filed: 1930-01-31
Abstract: 338,809. Goodyear-Zeppelin Corporation, (Assignees of Siegle, W.). May 6, 1929, [Convention date]. Aerostats. - Rigid airships have bulkheads under initial tension connected by radially extensible connections to the frame rings. In the example, shown each bulkhead netting 10 is secured at points around its circumference by springs 17 to the corners of the corresponding frame ring 12. The springs 17 may be tension springs or compression springs arranged in cylinders. Alternatively, cord connections which may be untied and extended may be used. The extensible connections may be arranged around the whole circumference of the ring or only on the lower portion.