baber/WOPTO huggingface dataset:
Patent GB-747076-A (GB)
Title: Plant for producing compressed air
IPC: F02C6/06
Filed: 1954-07-09
Abstract: 747,076. Gas turbine plant. SULZER FRERES SOC. ANON. July 9. 1954 [July 18, 1953], No. 20112/54. Class 110(3) Relates to plant for supplying compressed air to a blast furnace or other consumer by means of a working compressor driven by a gas turbine unit having its own unit compressor for supplying 'air to the gas turbine. According to the invention the plant comprises at least one gas turbine unit with a unit compressor having a higher delivery pressure than that of the working compressor, a valved transfer connection between this unit and the working compressor delivery, and a motor or generator connected to an electric network and mechanically coupled to the turbine unit. In the plant shown in Fig. 1 there are four working compressors 1 and five gas turbine units each comprising a turbine 7, a unit compressor 5 and a combustion chamber 6. In two instances the working and unit compressors are in a single casing. One gas turbine unit drives a fuel gas compressor 3 and is mechanically coupled to a generator-cum-motor 8 connected to a network 19. The compressor of this unit has a transfer connection 12 with valves 13 arranged in the connection to the compressed air delivery pipes 2. Part of the fuel delivery may be returned to the inlet side of the fuel compressor through a cooler 16. A sample plant, Fig. 2 (not shown), comprises a single turbine drivingly coupled to a fuel compressor, a unit compressor, a working compressor, and a dynamo-electric machine. The turbine exhausts through a preheater for the combustion air. A valve is fitted in the inlet to the working compressor. Fig. 3 shows a modification of this simple plant employing an additional air turbine 24 arranged in the transfer connection 12 from the unit air compressor. The amount of compressed air supplied by pipe 2 to the blast furnace may be reduced by opening a blow-off valve 26 or a valve 32 in a con-- nection 31 to the unit compressor 5. A transfer connection 28 containing an auxiliary turbine 30 may be arranged between the inlet to turbine 7 and pipe 2. Fuel oil or pulverized fuel may be used instead of gaseous fuel.
Patent GB-645754-A (GB)
Title: Production of nitriles
IPC: C07C255/49
Filed: 1947-07-25
Abstract: Aromatic nitriles are manufactured by contacting an alkyl-substituted aromatic hydrocarbon with ammonia, in gaseous phase, at temperatures between about 900 DEG  F. and the decomposition temperature of ammonia (preferably at 980-1030 DEG  F.), in the presence of a catalyst comprising a molybdenum oxide (e.g. the sesquioxide, dioxide, pentoxide or especially the trioxide), preferably supported on alumina.  The molecular proportion of hydrocarbon in the reaction mixture may vary widely (e.g. from about 20 to about 90 per cent), but it is preferable to use a molar excess of ammonia.  If the catalyst becomes fouled it may be regenerated by careful oxidation, e.g. by passing a stream of air over it.  The pressure at which the reaction is effected may be subatmospheric, atmospheric or superatmospheric.  Examples describe the preparation of benzonitrile from toluene, tolunitriles from xylenes and xylylnitriles from trimethylbenzenes.  Other starting materials specified are methylnaphthalenes, and hydrocarbon fractions containing mixed alkylbenzenes or alkylnaphthalenes.  The Specification as open to inspection under Sect. 91 comprises also the use of catalysts containing a tungsten oxide (e.g. the dioxide or trioxide) and of catalyst supports other than alumina (e.g. silica gel, the material sold under the Registered Trade Mark "Carborundum," pumice or clays), the use of temperatures down to about 850 DEG  F. (the preferred range being about 925-1075 DEG  F.), and the use as starting materials of other hydrocarbons having at least two carbon atoms to at least one of which at least two hydrogen atoms are attached (including alkenyl substituted aromatic hydrocarbons, especially styrene).  Reference is made to the use of air diluted with flue gases for the oxidation treatment for the regeneration of the catalyst, and it is stated that this treatment is preferably followed by a purging treatment, e.g. by passing over the catalyst a stream of nitrogen, carbon dioxide or hydrocarbon gases.  This subject-matter does not appear in the Specification as accepted.
Patent GB-408489-A (GB)
Title: Improvements in or relating to the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/66
Filed: 1933-07-18
Abstract: <PICT:0408489/III/1> <PICT:0408489/III/2> In apparatus for the electrical separation of suspended particles from gases in which a spark-gap is interposed in the supply line to the discharge electrodes and an earthed condenser is connected in a branch line preceding the spark-gap, whereby voltage impulses with a steep wave-front are impressed upon the electrodes at each breakdown of the spark-gap, the condenser is arranged within the treater and the gases to be treated form its dielectric.  This condenser also acts as a non-ionizing separation zone, wherein particles which have been ionized but not deposited in the ionizing portions of the treater are collected.  In the arrangement shown in Fig. 1, the treater contains two units 33<a>, 33<b>, comprising discharge electrodes 35 and plate-type collecting electrodes 34, and a condenser unit 28 made up of a series of plates 36 and rods 37 which are of sufficiently large diameter to prevent corona discharges.  The collecting electrodes 34 and plates 36 of the condenser are earthed to the casing 30.  The high tension current is supplied by a transformer 15 and a mechanical rectifier 4 rotated by a synchronous motor 2.  The current is fed by lines 16, 19 and 20 to the rods 36 of the condenser and by means of a distributer 5, also rotated by motor 2, alternately to each of the units 33<a> and 33<b>.  The distributer 5 is arranged to act also as a rotary spark-gap, so that impulses of steep wave front are applied to the discharge electrodes.  If desired, the units may be fed in parallel, in which case the distributer 5 is replaced by an impulse spark-gap.  High frequency oscillations are damped by resistances 14, 18 and chokes 25, 26 and 27, which also regulate the distribution of energy to the discharge electrodes. To prevent deposition of dust, which would alter the characteristics of the electrodes and the capacity of the condenser 28 and impair the efficiency of operation, the discharge electrodes 35 and rods 36 are suspended from supports 38, passing through insulated chambers 39, which are mounted on springs 40 and periodically vibrated by hammers 42.  The collecting electrodes 34 and condenser plates 36 depend from transverse supports 43 attached to the sides of the casing.  Their lower edges are vibrated by transverse stiff members 44 carrying hammers 45 (shown in Fig. 3), the distance apart of which is slightly greater than the thickness of the plate 34 and reinforcing plates 46.  The members 44 are vibrated by means of eccentrics 48 rotated by shaft 49.  Two members 44 are preferably used, arranged to jar alternate plates in opposite directions. The capacity of the condenser 28 should preferably be at least as great as the capacities of all the precipitating units to which it is connected.
Patent GB-203853-A (GB)
Title: A method of rendering coats of distemper and mineral colours washable
IPC: B05D5/00
Filed: 1922-07-25
Abstract: 203,853. Rosenbaum, M. July 25,1922. Washes.-An aqueous solution of borax and shellac, mixed with wheat flour, is used to render distempered surfaces washable, the distempered surface being sized before the composition is applied.
Patent GB-459884-A (GB)
Title: Improved magnetic sound record carrier
IPC: G11B5/70
Filed: 1935-07-17
Abstract: 459,884. Magnetic sound-records. ALLGEMEINE ELEKTRICITATS-GES., 2, Friedrich Karl Ufer, Berlin, and I. G. FARBENINDUSTRIE AKT.-GES., Ludwigshafen, both in Germany. July 17, 1935, No. 20391. Convention date, July 18, 1934. [Class 40 (ii)] A magnetic sound-record carrier consists of a support bearing a single layer of ferro-magnetic particles which are substantially completely insulated from one another by an insulating film and all lie at the same distance from the smooth surface of the support. The magnetic material may be iron powder produced from iron carbonyl and mixed with an insulating material in the form of a highly viscous organic colloid so that each individual particle is coated with an insulating layer. The insulating material may be celluloid or acetyl cellulose, cellulose ether, polyvinylic or polyacrylic compounds, natural or artificial rubber or the like. The mixture is applied to a metal or other band, and, after the mass has solidified, the support may be replaced by a paper carrier or a film. To ensure that the magnetic particles do not remain spaced from the support, the layer may be passed through a magnetic field, or it may be softened temporarily to such an extent that the individual particles gravitate to the support, such action being assisted, if desired, by the action of a shaking magnet which imparts mechanical vibrations to the support. As shown in the drawing, the viscous material is fed on to an endless rotating metal band 3 from a container 1 and may be distributed thereon by a scraper 4, a permanent magnet 5 which draws the particles on to the band, or a heating arrangement 6 in combination with a shaking magnet 7. The rate at which the mass is fed from the container to the band-and the rate of movement of the band are so adjusted that a single layer of particles is provided on the band. The band is carried through a drying oven 8 to harden the mass, and a strong support in the form of a paper band or film is applied or placed underneath the magnetizable layer. A film is applied to the magnetic band from a funnel 9, and with the magnetic band is lifted by a blade 10 from the support 3, being wound, after solidifying under the action of heat or a stream of gas, on to a drum 11. The iron particles may be all of the same size, for example 10 to 15 Á, and have similar magnetic properties. Specification 418,096 is referred to.
Patent GB-461615-A (GB)
Title: Improvements in and relating to the production of margarine
IPC: A23D7/005
Filed: 1935-07-17
Abstract: In the manufacture of margarine, the final product is given a viscosity of at least 36 centipoises at 50 DEG  C., and at least 15 per cent higher than that of the original oil-fat mixture in the just molten condition by sufficiently finely distributing the aqueous phase in the oil-fat phase, an oil-soluble water-dispersing stabilizer being added to the oil-fat mixture. The desired dispersion of the aqueous phase may be obtained by emulsification which is continued until the desired value is attained, or where the dispersion is effected in a single operation, e.g. by atomizers, by determining the conditions of the operation by test.  The aqueous phase may consist of an oil in water emulsion using which the desired viscosity is obtained with a less fine dispersion than required for water.  In an example, in 85 kg. of a mixture of 65 per cent cocoa-fat, 25 per cent hard fat and 10 per cent of cotton-seed, soya, arachis or equivalent vegetable oil, 500 gm. of a stabilizer are dissolved, and 16 kg. of water or milk are atomized therein to give a viscosity of 36-60 centipoises at 50 DEG  C.  The mixture is cooled and ripened, left till the mass has an even-temperature and rolled between stone rollers at 12-16 DEG  C.  In a modification, 14 kg. of vegetable oil are finely distributed as a homogeneous emulsion in 16 kg. of skimmed milk, and the emulsion is atomized into 70 kg. of fat mixture containing 500 gm. of stabilizer and worked up as in the first example.  In a further example, an emulsifying agent, e.g. one prepared as described in Specification 187,298, [Class 84], is added to the molten oils and fats and about 16 per cent of water or milk are distributed therein through an atomizer with an aperture of 0,1 mm. at a pressure of 250-300 atmos., or the water or milk may be added to the oil-fat mixture and the stabilizer and the mixture circulated by a rotary pump until a viscosity of 36 centipoises is produced.
Patent GB-415566-A (GB)
Title: Improvements in or relating to ornithopters
IPC: B64C33/00
Filed: 1933-07-19
Abstract: 415,566. Ornithopters. VERDIER, P., 70, Faubourg St.-Jean, Le Puy, Haute-Loire, France. July 19, 1933, No. 20431. Convention date, July 20, 1932. [Class 4.] In an ornithopter having a pair of wings 1, 3 and 2, 4 adapted to be rocked in opposite directions about a central longitudinal shaft 13 and to be twisted by the resistance of the air so as to support and propel the craft, each wing comprises two blades, the twist of each of which is limited independently of that of the other by elastic devices and may be modified in flight by the pilot. Each blade comprises a number of ribs 10, Fig. 5, pivotally connected to a transverse member 11 adapted to be rocked by the engine about the shaft 13 and a member 12, pivoted movement of which about its inner end causes the inclination of the ribs to vary. For this purpose elastic cables 18, Fig. 6, are secured at adjacent ends to two drums 16 mounted on a shaft 15 carried on supports 14 from the member 11, the other ends of the members 18 being secured respectively to one end of a reinforced rib of the blade and to a point on the rib adjacent the member 12. A cable 19 is secured to a drum 17 fixed to the drums 16 and, when tensioned by the pilot, causes the elastic members 18 to wind on the drums 16 and vary the twist of the blade, while on release of the cable 19 the air resistance twists the blade reversely. The cables 19 on each of the four blades are connected to arms 20, 21, 22, 23, Fig. 7, mounted on shafts 32 adapted to be coupled together by cranks 30, 31 and by a pilot-operated lever 24 having projections 25 for engaging apertures on one or both of the cranks. Pedal-operated clutches 28, 29 fixedly connect one or both arms of each pair 20, 21 or 22, 23 with the corresponding shaft 32. Tail-planes 8, 9, Fig. 2, may be provided as supplementary aids in manoeuvring.
Patent GB-222617-A (GB)
Title: Improvements in collapsible typewriting machines
IPC: B41J3/37
Filed: 1923-08-11
Abstract: 222,617. James, R. W., (Remington Typewriter Co.). Aug. 11, 1923. Folding type-lever machines. - In machines having compactible type-levers, the compacting and expanding movements are effected without disturbing the main framework or platen, by means that cause the type-levers to move bodily with their support, and turn on their pivots. Type-levers 23 are pivoted on a vertically-moved support or segment 7 connected by links 62 to arms 58 on a shaft 57 which can be rocked by means of a hand-crank provided with a locking- pin. The segment is provided with legs 9 having races for balls or rollers, companion races being formed in tracks 12 secured to bars 15 forming part of a frame or casting 16 secured to the main framework 1. The bars 15 have ears 73 for limiting the movement of the legs. The frame 16 supports the key-levers 38 and an aligning- guide 21. The type-levers have cam-slots 32 engaging pins 33 on sub-levers 34 connected by links 36 to the key-levers. The sub-levers are supported by forked levers 44 pivoted on a segment 48 secured to the framework 1, the forked levers abutting on a plate 55 on the segment 48, and normally forming stationary supports for the sub-levers. The type-levers and sub-levers are arranged radially, and the key-levers are substantially parallel. Returning-springs 52 are connected to the sub-levers and a plate 53 secured to the segment 48. On raising the segment 7, the type-levers are raised bodily and are rocked on their pivot 25 into the horizontal or collapsed position, the sub-levers being moved into the vertical position, and the links 36 being moved, rearwards. Locking-devices.-When the type-levers are collapsed, shoulders 36<a> on the links 36 rest on the plate 55, and lock the. keyboard.
Patent GB-643581-A (GB)
Title: Improvements in or relating to a friction clutch
IPC: F16D13/71
Filed: 1947-07-30
Abstract: 643,581. Friction clutches. DANA CORPORATION. July 30, 1947, Nos. 20623 and 20624. Convention dates, April 12, 1941 and Nov. 24, 1941. [Class 80(ii)] Wear adjustment of a plate clutch applicable to tractors and of the single intermediate driven disc type is effected by relative rotary adjustment of a ring member 43, on which the clutch operating levers 40 are pivoted, and a presser plate 19 carrying circumferentially extending cams 48 with which the ends 45 of the levers, co-act. As shown, applied to a motor vehicle transmission clutch, preloaded springs are mounted between the presser plate 19 and an annular member 33 supporting the cams 48, so as to be further compressed upon operation of the levers 40 to engage the clutch. Coil springs 36 or stacked Belleville washers 79, 80, Fig. 2, may be used as the preloaded springs, axial lost-motion rotary drive connections 30 between the member 33 and presser plate 19 being provided to effect pre-loading and allow the spring action. The ring member 43 is rotatable relative to the clutch back plate 20 upon slacking off a locking gear 55, engaging teeth 53 accessible from outside the plate 20 for adjustment. The levers 40 have counterweights 67 to eliminate centrifugal action, and are actuated from an operating collar 64 by over-centre links 61. Upon clutch disengagement, the presser plate 19 is retracted by springs 28 until a locating surface on the collar 64 abuts the ring member 43. Spinning of the clutch driven disc 14 on disengagement may be prevented by a brake disc 72 attached to the non-rotatable clutch operating collar 68 and engageable with a co-acting disc 75 fast on the driven shaft. In Figs 3 and 4 (not shown) the cams are directly mounted on the presser plate and coil springs or stacked Belleville washers acting as before are held preloaded, between the ring member and an annular member rotatively adjustable on the cover plate, by axial lost-motion rotary drive connections between the members.
Patent GB-868548-A (GB)
Title: Improvements in and relating to locking means for adjustable drawing board mountings
Inventor: LONGDEN WALTER
IPC: A47B27/18
Filed: 1958-06-27
Abstract: 868,548. Drawing board mountings. HALDEN & CO. Ltd., J. June 8, 1959 [June 27, 1958], No. 20632/58. Class 52(3). In a mounting for supporting a drawing board at an adjustable angle, the board is clamped in its adjusted position by forcing two sleeves outwardly from the centre of a rod. As shown, in the mounting disclosed in Specification 859,181, arcuate check pieces 11 are clamped between links 9 and washers 12 on rod 4 when shaft 14 is turned to force sleeves 15 apart.
Patent GB-1016648-A (GB)
Title: Manufacture and application of herbicides
IPC: A01N33/22
Filed: 1964-05-19
Abstract: The invention comprises 2,4,6-trichloro-41-nitrodiphenyl ether and 2-methyl-4,6-dichloro-41-nitrodiphenyl ether and the preparation of these compounds by reacting an alkali-metal 2,4,6 - trichlorophenolate or 2-methyl-4,6-dichlorophenolate with p - nitrochlorobenzene. Examples are given.  The products are useful as herbicides (see Division A5).ALSO:As components of herbicidal compositions, use is made of 2, 4, 6-trichloro-41-nitrodiphenyl ether or 2-methyl-4, 6-dichloro-41-nitrodiphenyl ether or mixtures thereof (see Division C2).  The compounds may be formulated as solid compositions, wettable powders or emulsifiable concentrates with the aid of suitable diluents, some of which are specified.  The compositions may contain other herbicides, insecticides, germicides or fertilizers.  Comparative examples of the use of typical compositions are given.  The products are relatively harmless to fish and may be used for controlling weeds in rice fields.
Patent GB-1435965-A (GB)
Title: Separation of olefin polymers
IPC: B01J8/00
Filed: 1973-05-01
Abstract: 1435965 Separation of olefin polymers NATIONAL PETRO-CHEMICALS CORP 1 May 1973 [1 May 1972] 20670/73 Heading C3P An olefin is polymerized by producing a slurry of the solid olefin polymer in a liquid diluent within a polymerization zone, passing the product slurry directly to a separation zone, removing from the separation zone an overflow stream concentrated in the liquid diluent and an underflow stream concentrated in the solid polymer, taking off a portion of the underflow stream for recovery of the solid polymer, combining the overflow stream with the residual portion of the underflow stream, and recycling the resulting mixture to the polymerization zone. A pressure gradient may be maintained in the polymerization zone between the region from which the polymer slurry is removed and that to which the recycle mixture is returned, the pressure gradient providing the motive force for the feed to the separation zone and the recycle therefrom. The separation zone suitably comprises a cyclone separator. The product slurry may be produced in a continuous loop reaction zone. The preferred polymerization is that of ethylene in the presence of chromium oxide, organometallic or other catalyst systems.
Patent GB-1204644-A (GB)
Title: Improvements in or relating to taps
Inventor: KELLY WILLIAM MORTIMER
IPC: F16K15/18
Filed: 1969-04-23
Abstract: 1,204,644. Valves. BRIDGE HOLDINGS PTY. Ltd. 23 April, 1969, No. 20748/69. Heading F2V. A tap of the kind in which a spindle 24 rotates a mutilated disc 25 relative to an apertured disc 18 to control the flow of water from inlet 12 to outlet bores 13, has a check valve 32 mounted loosely on the spindle and adapted to prevent reverse flow into the water main. In a modification (Fig. 5, not shown) discs 18, 25 have single apertures, and the check valve comprises a ball biased to close the upper end of the aperture (21a) in disc 18. In both embodiments a spring 27 urges the discs into engagement with one another.
Patent GB-642069-A (GB)
Title: Improvements in machinery or plant for granulating mixed fertilisers
IPC: B01J2/12
Filed: 1948-08-06
Abstract: 642,069. Granulating fertilizers. STURTEVANT ENGINEERING CO., Ltd., and OGLIVIE, A. Aug. 6, 1948, No. 20824. [Class 111] An apparatus for granulating mixed fertilizers comprises a hopper into which the ingredients are introduced, means for conveying the mixture to an elevator-conveyer 10 and thence to an inclined rotary granulator 1 mounted on an elevated platform, a rotary drier-hardener 2 located beneath the platform and inclined in the opposite direction to the inclination of the granulator above it, a cooler 3 connected to the delivery end of the drier and rotating with it and a screening device 4 connected to the end of the cooler and rotating therewith. In operation, the ingredients are conveyed from the hopper via a pulverizermixer and elevator 10 to the granulator 1 from which granules pass into the drier 2, cooler 3 and screening device 4 which terminates in a grinding mill 4a. The product passing through the mesh openings of screen 4 passes by chute 12 and one run 13a of a duplex elevator to bagging position 5, while oversize particles from 4 are ground in mill 4a and are returned by the other run 13b of the elevator and shoot 14a to screen 4. Fines are extracted by aspiration through pipe 6 to a cyclone separator 15 and pass in admixture with ingredients from the hopper to the granulator 1.