baber/WOPTO huggingface dataset:
Patent GB-1469287-A (GB)
Title: Method and device for reforming the quality of fuel oil in an internal combustion engine
IPC: C01B3/00
Filed: 1974-05-02
Abstract: 1469287 Gaseous fuels TOYOTA JIDOSHA KOGYO KK 2 May 1974 [4 May 1973] 19339/74 Heading C5E [Also in Divison F1] Hydrocarbon fuel for an internal combustion engine is treated by feeding a fuel-air mixture to a fuel reformer, diverting a portion of the mixture into a separate path within the reformer and burning at least a portion of the diverted portion to heat and vaporize the remainder of the mixture in the reformer, combining the burnt and remaining portions of the mixture and passing it over a catalyst; the resultant mixture, together with additional air and additional fuel, is supplied to a combustion chamber of the engine. As illustrated in Fig. 1 (not shown), the main air-fuel mixture from the main carburetter is passed through a manifold, and an auxiliary air-fuel mixture from an auxiliary carburetter is passed through a reformer and into the manifold and the cylinders of the engine. Fig. 3 illustrates a reformer 7 which has an entry pipe 9 into which the auxiliary air-fuel mixture is passed, the main portion of the auxiliary mixture is passed through the heat-conducting tubes 10 and a branch portion of the auxiliary mixture is passed into a combustion chamber 14. The chamber 14 has an electrode spark plug 13 or an electric heating wire. The combustion in the chamber 14 heats and fully vaporizes the mixture in the tubes 10 and the burnt gas from the chamber 14 is mixed with the mixture in the tubes 10 and the mixture passed through the catalyst 19. The auxiliary mixture suitably has an air-fuel volume ratio of 3 and the ratio of mixture passing through the tubes 10 to that passing through the combustion chamber 14 can be 3 : 1; the mixture entering the chamber 14 is leaner than that in the tubes 10 and can be between 20 : 1 and 13 : 1. The mixture entering the catalyst chamber can be at 200-400‹ C.
Patent GB-1442866-A (GB)
Title: Recovery of sulphur values from molten salt
IPC: C01B17/16
Filed: 1974-05-02
Abstract: 1442866 Recovery of sulphur values ROCKWELL INTERNATIONAL CORP 2 May 1974 [16 May 1973] 19350/74 Heading C1A Sulphur values are recovered as H 2 S gas from alkali metal sulphides contained in an inorganic molten salt by contacting the melt with a gaseous mixture containing CO 2  and steam at a reaction temperature below 600‹ C. at which the sulphide-containing salt is molten to form alkali metal carbonates in the salt and evolve H 2 S, characterized in that water is injected directly into the reaction zone at a plurality of sites, the injected water being converted to steam to provide at least a portion of the reactant steam and at the same time maintaining the reaction temperature in the zone at below 600‹ C., preferably between 400‹ and 550‹ C., especially 450‹ to 500‹ C. The sulphidecontaining molten salt may be a molten salt mixture containing alkali metal carbonates which have been used to absorb sulphur oxide impurities from hot combustion gases. Suitable molten salts include a ternary mixture of potassium, lithium and sodium carbonates, a lithium - potassium salt mixture containing chloride sulfite and carbonate and systems containing alkali metal carbonate in an inert diluent, e.g. a mixture of lithium and potassium carbonates in a LiCl-KCl eutectic. The sulphide-containing melt is suitably passed down a regenerator unit 1 containing a plurality of sieve bubble trays 2. The reactant gas, e.g. containing 25% CO 2  and 25% steam is passed into the bottom of the vessel through line 4 and passes upwardly therethrough to contact the melt countercurrently. Water is injected in the region of the bubble trays to provide the remaining steam required for the reaction and to maintain the reaction temperature at the desired level. The alkali metal carbonate from the bottom of the reactor may be recycled for contact with sulphur oxide-containing gases. Sulphur may be recovered from H 2 S gas by the Claus reaction or the gas may be converted to sulphuric acid.
Patent GB-776501-A (GB)
Title: Improvements in or relating to dental impression materials
IPC: A61K6/90
Filed: 1955-07-05
Abstract: A dental impression material having an alginate base contains indicators which change colour when the material is formed into a paste with water, due to the variation of the pH value of the material, so as to indicate periods during which mixing and transfer to a holder should be carried out and to indicate when setting of the material commences.  The indicators may be selected from nitro derivatives of benzene or phenol, thymolphthalein, alizarin yellow R, phenolphthalein, Pa naphtholphthalein, tropeolin, cresolphthalein, or thymol blue.  In an example the composition comprises in percentages by weight: .Trisodium phosphate.2 to 6 .Borax.0,2 to 0,6 .Sodium carbonate.0,2 to 1 .Sodium alginate.10 to 20 .Inert excipient.50 to 70 .Calcium sulphate.15 to 30 .Thymophthalein.0,01 to 0,03 .Phenolphthalein.0,005 to 0,015 .Aromatizers.Small trace Upon mixing with water this composition is initially blue-violet and changes to pink at the end of the period available for mixing, and the beginning of the period available for transfer to a holder and insertion in a patient's mouth.  The end of the latter period is indicated when the mixture becomes white, at the commencement of setting.
Patent GB-854054-A (GB)
Title: Improvements in egg handling plant
Inventor: ROSTRON FRANK
IPC: B65B23/02
Filed: 1957-06-19
Abstract: 854,054. Endless conveyers; shoots. NEWMAN, HENDER & CO. Ltd. June 10, 1958 [June 19, 1957], No. 19366/57. Class 78 (1). [Also in Group XVII] In apparatus for delivering eggs into egg trays the eggs pass from a feed conveyer one by one on to the lower run of an endless conveyer consisting of an endless chain 9 carrying push plates or pairs of pusher fingers 15, and are moved step by step by this conveyer along a pair of rods 20, 21, of which the rod 21 is movable laterally, until a sufficient number has accumulated to fill a row of recesses in an egg tray B arranged below the rods 20, 21 whereupon a switch 32 closed by contact of a lug on the chain with switch-operating lever 32a energizes a solenoid 33 to cause rod 21 to be moved laterally towards and below rod 20, so that the accumulated eggs are deposited in the tray B. The rod 21 is guided on a rod 38 at each end and is moved by the solenoid 33 through links 37, rockers 35 and a cross-rod 34. An adjustable stop 39 on each rod 38 limits movement of the rod 21 away from rod 20. As the eggs fall into the tray one of the eggs actuates a switch 40 causing operation of a solenoid 47 which projects spring fingers 45 to temporarily arrest the eggs. A number of egg trays B are carried by a pair of continuously driven endless belts 7, the trays being intermittently advanced by a solenoid 43 which when energized rotates a drum 41 carrying arms 42 engaging in the space B<SP>1</SP> of an egg tray so as to move the egg tray one step. During rotation, of the drum 41 a pin wheel 49 is rotated and one of its pins closes a switch 48 to maintain both the solenoid 43 and the solenoid 47 energized until the movement of the egg tray is completed, upon which the solenoids are released so that the tray stops and the fingers 45 are withdrawn, whereupon the arrested eggs fall into the tray. The drive to chain 9 includes a slipping clutch having a pair of driven plates 17 provided with pins 25. One of the pins 25 normally engages a lug 24 carried by a lever 23 so that the chain 9 is stopped. When an egg passes from the feed conveyer 16 to the lower run of the pusher chain 9 it passes under a pair of fingers 29 which close a switch 26 to energize a solenoid 22 acting on lever 23. The lever 23 is then raised, freeing the pin 25 so that the plate 17 can rotate until the next pin 25 engages the lug 24, the chain 9 having been moved one step by this process. Specification 854,055 is referred to.
Patent GB-242714-A (GB)
Title: Improvements in the control of polyphase electromotors
IPC: H02K27/20
Filed: 1924-08-15
Abstract: 242,714. Smith, Major, & Stevens, Ltd., and Stevens, P. H. Aug. 15, 1924. Motors, controlling.-The speed of polyphase motors operating lifts is accelerated between floors by electromagnetic clutch mechanism controlled from the lift cage, the clutch connecting a running portion of the lift mechanism with the commutator brush-shifting gear to progressively increase the motor speed and retain it at a maximum until the clutch is released, when the normal brush position is restored under weight or spring action. In one arrangement, Fig. 1, the clutch drum G, preferably carried on the lift shaft, has two chains F, F<1> attached to it, the chains engaging a chain-drum D geared with brush-rocker racks C. The clutch may be arranged to slip when the motor is running at maximum speed, and when current is cut off from the clutch the brush-rocker gear is returned by a chain weight attached to the drum D. In another arrangement, Fig. 5, a system of levers and rods operates on the brush-rockers C, lugs C<5>, C<6> contacting with fixed stops M and limiting the brush shift, at the same time permitting the clutch to slip. In a modification one common weight E<1> for both rockers is employed. Dashpots may be used in any of the arrangements.
Patent GB-879664-A (GB)
Title: Improvements in or relating to the reduction of metallic oxides
IPC: C21B13/08
Filed: 1958-06-17
Abstract: 879,664. Reducing iron and other metallic oxides. ASPEGREN, O. E. A. June 17, 1958 [June 18, 1957; May 8, 1958], No. 19417/58 Classes 72 and 82(1)  A method of reducing metalic oxides by cold or preheated reducing gas containing free hydrogen comprises moving preheated bodies countercurrently with the oxides in a drum rotating about a horizontal axis, the oxides and the bodies being introduced at, opposite ends of the drum and the temperature and/or the rate of supply of the bodies being such that the reduction takes place at a temperature not above 870‹C. As shown iron oxide may be suplied to a rotary furnace 1 at one end and balls, heated to 610‹C. at the other. As the balls move from right to left their temperature is reduced until at the centre portion their temperature is 570‹C. and at this zone hydrogen is introduced into the furnace through slats 5 from a funnel 7. The iron produced is heated by the fresh balls to, 610‹C to make it non-. pyrophoric and is discharged at 9, the balls being discharged by grids 12 and deposited in a funnel 13. The balls may be reheated and recirculated or may be used to cool the discharged iron, or preheat the iron oxide, or both before reheating. The gas may be a mixture of hydrogen and carbon monoxide.
Patent GB-832828-A (GB)
Title: Improvements in or relating to wet sieving
Inventor: TREASURE CHARLES ROBERT GEORGE
IPC: B07B1/00
Filed: 1957-06-20
Abstract: 832,828. Wet sieving. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 9, 1958 [June 20, 1957], No 19499/57. Class 82(2) In an apparatus for wet sieving, a number of sieves 18 are pivotally mounted on holders 17 spaced equiangularly on a cross frame 13 which is mounted on a vertical. shaft for rotation in a horizontal plane and vibrating movement in a vertical plane, the material in slurry form being introduced to a sieve at a charging station A, washing being effected at B, drying at C, while between C and D a cam 44 inverts the sieve to discharge the residue at D. The shaft is driven by an electric motor controlled by a cam and micro switch so that each sieve 18 is moved in turn after a predetermined interval e.g. 10 minutes to each of positions A, B, C and D. Continuous vertical oscillation is imparted to the shaft and cross frame 13 by another electric motor via a cam shaft and a cam so that at positions A, B, C and D a rocking movement is imparted to the sieves 18 by means of cams 19 engaging fixed cams .20 during the downward movement of the arms 14. Automatic control of the drive and values 35, 36, 39 and 40 is effected by .a synchronous electric motor driving fine cams. Valve 35 allows a fixed amount of water from tank 34 into tank 31 where a slurry is formed with a fixed weight of the material, the slurry flowing into the sieve 18 at station A via valve 36 opened automatically for a set time. The shaft then rotates to position the sieve at B where it is washed with water from spray 37 and then with methylated spirit from tank 38, followed by rotation to C where infra red drying takes place. Discharge of the residue occurs at D, the sieve being inverted by cam 44 and finally cam 45 returns the sieve to its upright position before it returns to the charging position A.
Patent GB-499372-A (GB)
Title: Improvements in and relating to the production of diesel fuels by treatment of crudeoils with oxygen
IPC: F02B47/00
Filed: 1937-07-15
Abstract: Oils of Diesel fuel range which have poor ignitability, e.g hydrogenated oils poor is hydrogen, petroleum oils, thermally stabilized hydrocarbons such as oil distillates, shale oil distillates, tar oil are rendered more ignitable and suitable for use in Diesel engines by treating the oil between 150 and 350 DEG  C. in the liquid phase and preferably under pressure with oxygen or substances containing or developing oxygen (e.g. ozone, hydrogen peroxide, their salts, chromic acid, nitric acid) in such small proportions and/or for such a short reaction time that no substantial formation of hydrocarbon compounds containing oxygen takes place and the boiling curve of the distillable portion of the initial material is not substantially altered.  Oils rich in hydrogen but difficultly ignitable, e.g. Asiatic petroleums which contain terpenes, shale oils cracked at 600 DEG  C. and above, gas oils cracked several times, may also be treated.  Reactive bituminous products obtained by the limited hydrogenation of coal may be added before or after the treatment.  When the reaction is carried out in the presence of oxygen transferring bodies or catalysts, lower temperature down to normal temperature may be used.  In example (1) a primary product obtained by the limited hydrogenation of coal is converted into a liquid by further hydrogenation; the fraction boiling between 200-380 DEG  C., which has a hydrogen content of 8,35 per cent is treated at 230 DEG  C. and 20 atmos. with air for 5 mins., whereby 40 litres of oxygen are absorbed per kg. of oil.  The hydrogen content of the product is 8,12 per cent; the product was satisfactory when used in a Diesel engine under 42 atmos. pressure at all loads; in the same process ozone or peroxide may be used at 20-50 DEG  C., instead of air at 230 DEG  C.  The treatment may be carried out by passing air or oxygen through the oil; by allowing the oil to trickle through a tower filled with contact material; or by treatment with oxygen &c. in presence of known oxygen-transferring contact catalysts, e.g. compounds of manganese, copper, vanadium, chromium, molybdenum, which may be in the form of oxalates, borates, oleates or resinates, or the carbonyl compounds of manganese, lead, cobalt, nickel.  In example (2), an oil poor in hydrogen, boiling at 220-300 DEG  C., is pumped with air in the proportions of 120 litres of air to 1 litre of oil at 280 DEG  C. and 10 atmos. through a reaction tower over contact bodies impregnated with vanadic acid and the products obtained gave smooth operation in a Diesel engine.  In example (3), 1 part of the primary product used in example (1) is dissolved in 3 parts of the treated product, to form a Diesel fuel.  In example (4), a solid bitumen obtained by gentle hydrogenation of coal is dissolved in a coal-tar distillate and treated at 220 DEG  C. with air; or the distillation tar may be treated and the bitumen added to the product. Reference has been directed by the Comptroller to U.S.A. Specification 1,877,921.
Patent GB-220951-A (GB)
Title: Improvements in and relating to flow nozzles for use with flow meters and the like
IPC: G01F1/42
Filed: 1924-08-20
Abstract: 220,951. British Thomson-Houston Co., Ltd., (Assignees of Bullock, C. F.). Aug. 22, 1923, [Convention date]. Flow meters, pressure-actuated.-A pressuredifference creating nozzle for use with a flow meter consists of spaced concentric tubes 1, 2 with merged, curved admission ends, the tube 1 projecting beyond the end of the tube 2. The leading and trailing pressure pipes 7, 8 are connected as shown.
Patent GB-352238-A (GB)
Title: Improvements in or relating to nut-crackers
IPC: A47J43/26
Filed: 1930-06-28
Abstract: 352,238. Nutcrackers. CONKLIN, E. R., 27, Trevor Square, Knightsbridge, London. June 28, 1930, No. 19753. [Class 128.] A nutcracker having a stationary jaw 10 and a movable jaw 12 has operating levers 21 which are pivoted directly to the movable jaw and have an intermediate link connection 18 to the fixed jaw. For holding the nut the jaw 10 has flanges 11 and the jaw 12 has a depression 13. The links 18 are pivoted at 17 to a standard 15 which carries pins 25 engaging slots 26 in the plate 22 of the movable jaw 12. Springs 27 keep the jaws in the open position. To adjust the separation of the jaws a ratchet 28 on the standard 15 is engaged by a pawl 29 upon the stationary jaw plate 30, the extent of this adjustment being limited by the engagement of slots 31 with the pins 25. A pivoted catch may be provided to hold the handles together when not in use.
Patent GB-586370-A (GB)
Title: Improvements in taps, valves and the like
IPC: F16K31/60
Filed: 1944-10-13
Abstract: 586,370. Securing hand-wheels on shafts. ENSTONE & CO. (SUCCESSORS), Ltd., T. C., and READ, N. K. Oct. 13, 1944, No. 19756. [Class 80 (ii)] [Also in Group XXIX] A water tap handle is fitted to the upper squared end of the spindle 10 and secured thereto by the screw 11 and the washer 12.
Patent GB-633014-A (GB)
Title: Welding stud
IPC: B23K35/02
Filed: 1947-07-23
Abstract: 633,014. Electric welding. NELSON, T. July 23, 1947, No. 19781. [Class 83 (iv)] A stud 2 for arc welding has a slug 3 of flux material, e.g. aluminium, fixed in the work-engaging end. A cylindrical slug is pressed into a drilled or punched hole and is flattened or pointed at 7. A flange 6 may result from the pressing operation. Specification 580,702 is referred to.
Patent GB-147775-A (GB)
Title: Improvements in the method of building commutators for dynamo electric machines
IPC: H02K13/04
Filed: 1920-07-09
Abstract: 147,775. Apple, V. G. Jan. 22, 1917, [Convention date]. Coating.-Segments of commutators for dynamo-electric machines are formed by enlarging the terminals of the armature conductors, for example, by spraying metal. The pairs of armature conductors 13, 14 have their terminals 15, 16 straightened out to lie in parallel axial planes and are spaced by separators 17 of insulating material, such as micanite. A suitable metal-spraying machine is shown in Fig. 5. The wire from a coil 26 passes between carbon electrodes 27, 28 and the molten metal is blown into the interstices 23 between the insulating pieces by air under pressure introduced through the tube 30, to form integral segments 25.
Patent GB-1162743-A (GB)
Title: A Method and Apparatus for the Treatment with Liquids of Bands, Sheets, Rolled Sections or Wires
IPC: C23G3/02
Filed: 1967-04-28
Abstract: 1,162,743. Cleaning or phosphating sheets, wires &c. RUTHNER INDUSTRIEPLANUNGS A.G. April 28, 1967 [April 28, 1966], No. 19814/67. Headings C7E and C7U. Bands, sheets or wires are treated with liquids e. g. for cleaning or phosphating by passing them through channels 8, and introducing the liquid at 9 so that it flows countercurrent to the direction of movement of the sheet. Flaps 11 which may be weight or spring-loaded constrict the flow of the liquid and increase its velocity when it flows under the flaps.
Patent GB-715577-A (GB)
Title: Improvements in or relating to securing devices for bicycle props
IPC: B62H1/02
Filed: 1952-08-06
Abstract: 715,577. Bicycle supports. WYDER, H. PLETSCHER-. Aug. 6, 1952 [Aug. 10, 1951], No. 19827/52. Class 136(1) A bicycle prop 9 is pivotally mounted in a case 7 which is secured by means of a screw 11 to a bridge plate 5 which is brazed to the chain stays 2, 3, a connecting part 12 being provided on the bridge plate for securing a further part of the bicycle such as the rear wheel mudguard 4. The bridge 5 has two ribs 6 which serve as abutments for the upper part 8 of the prop case 7.
Patent GB-1114020-A (GB)
Title: Process for the manufacture of polyolefins having a broad molecular weight distribution
IPC: C08F10/02
Filed: 1967-05-01
Abstract: A catalyst system comprises (a) 1 part by weight of the solid reaction product, prepared at a temperature within the range of from - 20 DEG  C. to + 25 DEG  C., of TiCl4 with an aluminium compound that contains chlorine, (b) 0.1 to 1 part by weight of the solid reaction product prepared at a temperature within the range of from +30 DEG C. to + 100 DEG  C., of TiCl4 with an alkylaluminium compound that contains chlorine, and (c) diethylaluminium monochloride.  The catalyst system is used for making olefine polymers having a broad molecular weight distribution by polymerizing ethylene, or copolymerizing ethylene with up to 5% by weight of butene-(1) or propylene, in the presence of hydrogen, by "low pressure" techniques, in an inert diluent. The polymers besides a braod molecular have a U-value within the range of from 9 to 27, at a reduced specific viscosity of 2.7, determined in a 0.1% by weight solution in xylene at 110 DEG  C.
Patent GB-502321-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/82
Filed: 1938-07-06
Abstract: 502,321. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 6,1938, No. 20018. Convention date, July 9, 1937. [Class 39 (i)] A solid electrode tube in which a high pressure discharge occurs in the vapour of a difficultly volatilizable metal has the space between the seal of the electrode and the electrode and facing the discharge filled with difficultly volatilizable metal from which the electrode extends less than four millimetres. In the form shown the quartz tube 1 is six mm. diameter and electrodes 2, 3 project therein about ten mm. and are separated by twenty mm. The electrodes project about two mm. from the cadmium 6, 7 and the tube may also contain argon at a pressure of five mm Instead of cadmium alone, cadmium with bismuth or tin may be used or combinations of zinc and these metals. The bulb 11 may be evacuated or may contain a gas e.g. nitrogen at a pressure of fifty mm.
Patent GB-294533-A (GB)
Title: Improvements in or relating to chimneys for oil lamps
IPC: F21V37/00
Filed: 1928-07-10
Abstract: 294,533. Aladdin Industries, Ltd., (Assignees of Davis, C. W.). July 25, 1927, [Convention date]. Chimneys; securing chimneys to galleries. -In an oil-burning lamp the base of a chimney is provided with air-admitting spaces and with means for locking it to the gallery. The base of a chimney 43 is provided with downwardly projecting lugs 44, or their equivalents, adapted to rest on the deck 46 of a gallery 6 so as to form airadmitting spaces 47. The gallery 6 is provided with inwardlyprojecting prongs 42 adapted to enter spaces 48 between external beads 45 at the base of the chimney, so as to lock the chimney to the gallery by bayonet joint. The beads 45 may be solid or hollow, they may have inclined upper surfaces, and the spaces 48 may coincide with the lugs 44.