baber/WOPTO huggingface dataset:
Patent GB-152292-A (GB)
Title: Improvements in thermal engines and more particularly in turbines actuated by combustion products
IPC: F02C6/00
Filed: 1920-10-08
Abstract: 152,292. Coninck, M. R. de. Oct. 9, 1919, [Convention date]. Working-fluid supply; motor power plant.- Regulating means are provided in an internalcombustion turbine working on a Carnot cycle approximately realized by carrying out the heat exchanges in several stages with the production of work between the stages. Fig. 2 shows a gas turbine on this principle. Fuel injected through the pipe i<1> raises the temperature of the gas in the combustion chamber c<1> from T1 to T2 the gas expanding through the nozzle t<1> to the temperature T1 acquires velocity which acts on the impulse wheel r<1>, after which any remaining velocity is converted into pressure by a diffuser d<1>. The gas then enters the chamber c<2> where a similar process is carried out, and similarly in the chamber q<3> where, however, the expansion is much greater, being to a temperature T0<SP>1>, the impulse wheel r<3> being provided with several rows of blading. The gas is then cooled by a refrigerator R to a temperature To and then compressed by a wheel r<1>1 and diffuser t<1>1 of a multistage compressor to the temperature, To<SP>1>, being then again cooled to the temperature T0, and so on, till the last stage is reached, where the wheel r<1>6 will have several rows of blades to compress the gas to the temperature T1, which is then transferred to the chamber c' having completed the cycle. Valves a, a, a, b, b, b allow any stage to be put at atmospheric pressure, and if the fuel supply is reduced proportionally to the reduction in pressure the same temperature and velocity conditions will hold, but the power will be reduced proportionally, since the density of the gas is reduced proportionally. This gives a means of regulating at practically constant efficiency and speed. The combustion chambers are lined with refractory material to withstand the temperature T2; the rear end of the nozzles may be made of carborundum for this purpose. The forward end of the nozzles and the blades of the wheels are at the temperature T1, which may be less than red heat without impairing the efficiency of the cycle. The section of the blading is increased with increasing specific volume of the gas; to meet this, if the expansion is high, the turbine may be divided into two parts differing in speed and diameter and being coupled by suitable gearing E as shown in Fig. 3, where the two parts M<1>, M<2> both comprise a portion of the expansion and compression stages. By suitably selecting the stages of the part M<1> the coupling need only transmit a small fraction of the power and the blades of the part M<2> will all be at low temperature.
Patent GB-611227-A (GB)
Title: Improvements in insecticidal preparations
IPC: A01N29/12
Filed: 1945-10-30
Abstract: An insecticidal spray comprises a water suspension of an intimate mixture of 2:2-bis-(p-chlorophenyl) -1:1:1-trichloroethane and kaolin.  The preparation is preferably free from water-soluble wetting agents, but other additions such as chalk, ordinary clay, pyrophyllite, or other insecticides, fungicides, spreaders or stickers may be present.  The spray may be made as required by adding water to a mixture of the other (dry) ingredients.  Specification 587,263 is referred to.
Patent GB-749110-A (GB)
Title: Improvements in and relating to winding mechanism for raising and lowering the windows of vehicles
IPC: E05F11/38
Filed: 1954-10-05
Abstract: 749,110. Operating vehicle windows. ROETHEL, J. H. Oct. 5, 1954 [Feb. 6, 1954], . No. 28662/54. Class 20(3). A winding mechanism for raising and lowering the window of a vehicle comprises a single swinging arm 12, mounted by one end on a toothed sector 21, which has a transversely disposed drive pin 46 at its other end moving in an uninterrupted continuous longitudinal slot 40 in the rear wall 43 of an uninterrupted guide channel 39 provided on the window panel holder 38 and running perpendicular to the direction of movement of the window, the drive pin 46 being guided in the channel by a bearing member 48 mounted on the pin and extending over the depth of the channel 39 in bearing contact with the top and bottom walls 44, 45 of the channel and the drive pin 46 having a stop member 90 on its end projecting through the slot 40 to prevent withdrawal. The winding mechanism is mounted on a plate 14 between inner and outer panelling of a vehicle door or body, and comprises a shaft 24 extending through the inner panelling and provided with a hand crank. A driving pinion 23 on the shaft 24 engages the toothed sector 21 rotatably mounted at 22 on the plate 14, the arm 12 being secured to the sector 21 as by rivets 93. A roller spring may be disposed on the plate 14 to exert a twisting movement in the direction opposite to the direction of lowering of the window, shown by the arrow x to compensate for the weight of the window. The pin 46 has a narrow end 41 rivetted to the arm 12 and the stop member 90 at its other end may be integral, the slot 40 having an enlargement 92, through which the stop member 90 may be passed, beyond the end position of the traverse of the pin or, alternatively the stop member may be detachable. The U-shaped channel 39 has its top and bottom walls 44, 45 angled off to obtain a smooth front, the top flange being provided with a further horizontal flange 42 which is spot welded or similarly secured to the window panel holder 38. As shown, the bearing bush 48 is solid and has a central portion 51 fitting into the channel 39 and a flange portion 50 guided against the flat front of the channel 39, the bush 48 being maintained in engagement with the channel by means of a resilient washer 91 of cellular rubber or the like. In place of the washer 91, a helical compression spring may be used. In a modified construction, the bush 48 is formed as a hollow cup-shaped body fitting into the channel and having a flange similar to the flange 50, and a sleeve to fit over the pin 46, the bush being maintained in engagement by a helical compression spring between the base of the cup and the arm 12. The bush 48 may be formed integrally with the pin 46. The bush 48 may be of metal or a synthetic plastic or may be made of sintered metal and soaked with oil for lubrication.
Patent GB-894473-A (GB)
Title: Improvements relating to dialysis or electrodialysis cells
Inventor: DAVIS JOHN BROMLEY
IPC: B01D61/50
Filed: 1959-08-21
Abstract: <PICT:0894473/III/1> <PICT:0894473/III/2> A multicompartment dialysis cell employing alternate anion- and cation-selective membranes 3, 4 separated by flexible spacing frames 5, 51 in which co-operating holes 16, 19, 23, 24 in the membranes and frames provide conduits for passing two liquids in parallel through alternate compartments, has apertured inserts 36, 37 which are castellated along one edge to fit complementary castellations on one inner edge of the frame, apertures 17 in the inserts providing appropriate liquid connections between the conduits and the compartments.  The holes 16, 19 are for one liquid and the holes 23, 24 for the other, the castellations 38 in the inserts contacting the holes 16, 19 in the frames 5 and the holes 23, 24 in the frames 51.  The number of holes may be different in the top and bottom of the spacers and may be on different levels, Fig. 5, the spacers being shaped accordingly. The inserts are made of a plastic material, e.g. an epoxy resin, and the apparatus may be connected for series-parallel flow. Specification 845,184 is referred to.
Patent GB-1106850-A (GB)
Title: Improved bearing material
Inventor: GARDINER NORMAN ARTHUR
IPC: C08L67/02
Filed: 1964-07-08
Abstract: Bearing materials comprise polytetrafluoroethylene in powder, granular or fibrous form uniformly distributed throughout and firmly incorporated in a thermoset polyester resin. Specified polyester resins are styrene modified ethylene glycol maleate, styrene modified ethylene glycol hexamethylene glycol fumarate, and propylene fumarate phthalate optionally modified with triallyl eyanurate.  The polyester resins may be cured with benzoyl peroxide, methyl ethyl ketone peroxide or cyclohexanone hydroperoxide, optional together with a metal naphthenate or tertiary amine.  The compositions may also comprise graphite, molybdenum disulphide, whiting, lead oxide, asbestos powder or fibre, and metals, e.g. lead and bronze powders and fibres.  The compositions may be moulded or applied to backings to form bearings.  An example describes a composition comprising polytetrafluoroethylene, polyester resin, graphite, calcium carbonate, stearic acid and lead powder.
Patent GB-928460-A (GB)
Title: Improvements relating to the treatment of hydrocarbon fractions
IPC: C10G45/62
Filed: 1960-08-19
Abstract: Hydrocarbon fractions boiling above 150 DEG C. are contacted in the presence of hydrogen with a catalyst comprising a platinum group metal on a support containing a major amount of alumina and less than 1% (weight) of halogen, at a temperature of at least 700 DEG F., but below that at which more than 20% of the feedstock is converted to material boiling below 150 DEG C., at a pressure of at least 100 p.s.i.g., and a space velocity not exceeding 8,0 v/v/hr., and recovering a product boiling above 150 DEG C. having a pour point at least 5 DEG F. lower than the feedstock, the temperature and space velocity being correlated to give the said lower pour point.  The catalyst support may include a minor proportion of an oxide of a metal selected from Group II, III and IV of the Periodic Table, including silica, and a minor proportion of one or more compounds of non-metallic elements of Group III, IV and V of the Periodic Table, especially boria.  Suitable supports include alumina, either alone or with silica, titania, zirconia, or beryllia.
Patent GB-1489781-A (GB)
Title: Manufacture of soda ash
IPC: C01D7/35
Filed: 1974-06-28
Abstract: 1489781 Separation of sodium fluoride from sodium carbonate IMPERIAL CHEMICAL INDUSTRIES Ltd 9 June 1975 [28 June 1974] 28802/74 Heading ClA A process for the separation of sodium fluoride from an aqueous liquor comprising sodium carbonate and sodium fluoride comprises crystallizing the liquor to produce a slurry comprising sodium carbonate monohydrate and sodium fluoride in an associated mother liquor, and classifying the slurry to separate it into a first slurry portion comprising substantially sodium fluoride and a second slurry portion comprising substantially monohydrate. The process may be used for reducing the fluoride content of crude soda ash derived from crude tronaby; (i) dissolving 1 the crude soda ash in water and/ or aqueous sodium carbonate solution to provide an aqueous solution comprising sodium carbonate and sodium fluoride; (ii) evaporating 4 the aqueous solution obtained in stage (i) to produce a slurry comprising sodium carbonate monohydrate in a mother liquor comprising sodium carbonate and sodium fluoride; (iii) separating 6 the slurry into monohydrate and the mother liquor of stage (ii); (iv) evaporating 8 the mother liquor from stage (iii) in the presence of recycled mother liquor from stage (vi) to produce a slurry comprising monohydrate and sodium fluoride in a mother liquor; (v) classifying 9 the slurry from stage (iv) to separate it into a first slurry portion comprising substantially sodium fluoride and the mother liquor of stage (iv) and a second slurry portion comprising substantially monohydrate and the mother liquor of stage (iv); (vi) separating 10 the first slurry portion of (v) into sodium fluoride and mother liquor and recycling the mother liquor to stage (iv); (vii) separating 12 the second slurry portion of (v) into monohydrate and mother liquor; (viii) decomposing the monohydrate from stages (iii) and (vii) to produce soda ash. The aqueous solution of stage (i) may be settled or filtered 2 to remove insoluble impurities and treated 3 with charcoal, H 2 O 2 , hypochlorite or Cl 2  to reduce the level of organic impurities, prior to stage (ii).
Patent GB-797444-A (GB)
Title: Regulating system for a motor generator system
IPC: H02P11/00
Filed: 1955-10-10
Abstract: 797,444. Automatic generator control systems. BENDIX AVIATION CORPORATION. Oct. 10, 1955 [Oct. 22, 1954], No. 28820/55. Class 38 (4). In a system for regulating the voltage and frequency of a motor generator set 1, 2, including a D.C. motor 6 having a field winding 5 receiving a predetermined amount of excitation and driving a rotor carrying a field winding 16 also receiving a predetermined amount of excitation, regulation is effected by the control of additional excitation of the motor field 5 from a transformer 31, across the alternator output, by a magnetic amplifier 24 in accordance with the output from a frequency discriminator 42, and of additional excitation of alternator field 16 also from transformer 31 by a magnetic amplifier 78 in accordance with the generator output voltage through rectifier 103 and bridge 94. Load compensation is applied to windings 25 and 28 respectively of the two amplifiers by transformers 70 and 118 and compensation for changes of ambient temperature are introduced by resistors 52 and 98. A current proportional to the D.C. supply voltage is superimposed on the frequency control current through windings 27 by the unbalance current arising in bridge 58, and a variable resistor 68 may be provided to adjust the slope of the D.C. voltage input against output current of the detector bridge 58. Stability is effected by a transformer 91 coupling the load and control circuits and resistors 56, 76, 112, 124, are provided to obtain desirable time constants. Inductances may also be included for the suppression of harmonics.
Patent GB-475303-A (GB)
Title: Improvements in and relating to balancing devices for compressors and the like
IPC: F16F15/28
Filed: 1936-10-23
Abstract: 475,303. Balancing compressors &c. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1936, No. 28898. Convention date, Oct. 24, 1935. [Classes 8 (i) and 122 (iii)] A balancing weight 21 is slidably mounted on a rod 25 connected to the piston and other reciprocating parts of a compressor &c., and is resiliently supported by springs 29 rigidly attached to the weight at one end and to sliding plugs 35 at the other; the plugs normally abut on collars 29 fixed on the rod but when a certain amplitude of vibration is attained, they break-loose, altering the elastic characteristic of the system and preventing excessive vibration. The collars are faced with washers 37 of felt, fibre or other sound-deadening material.
Patent GB-135836-A (GB)
Title: Improvements in or relating to Fuselages of Aeroplanes.
Inventor: ROE ALLIOTT VERDON
IPC: B64D11/06
Filed: 1919-11-20
Abstract: 135,836. Roe, A. V. Oct. 31, 1918, [Convention date]. Fixing furniture to floors. - The seats 7, 8 of an aeroplane are supported on joists 10 attached to cross-members 2, 4 connected to the side struts 3 of the fuselage. The seats are secured to the joists by angle brackets 6 and by cables 11 fixed to the sides of the seats and passing underneath the joists 10, where they are fitted with turnbuckles. Plates 14, 15 serve further to secure the seats.
Patent GB-932385-A (GB)
Title: Improvements in or relating to methods of manufacturing high quality steel ingots
IPC: B22D18/06
Filed: 1960-08-22
Abstract: 932,385. Casting processes. HOESCH A.G. Aug. 22, 1960 [Sept. 5, 1959], No. 29012/60. Drawings to Specification. Class 83 (1). In a method of casting high quality mild steel by applying sub-atmospheric pressure degasification treatment to the pouring jet, the sub-atmospheric pressure P G  maintained during the casting time T G  remains at its maximum during-a time T N  of degasification of the metal in the mould, whereby T N  # T G , T N  maximum being equal to three-fifth minutes per ton, and the pressure P acting on the ingot after time T N  being such that 2P G #P#760 mm. Hg, with a minimum value of P=20 mm. Hg. The pressure acting on the ingot after degasification period T N  may be increased to a value between the minimum value of P and 100 mm. Hg by adding gases, and maintained at this value until solidification of the ingot.
Patent GB-603859-A (GB)
Title: Improvements in or relating to stabilisation of soils
IPC: C09K17/14
Filed: 1945-11-01
Abstract: Chalk or ferruginous soils are stabilized against the action of water by mixing therewith a small amount of an anionic detergent, soap, or similar amphipathic material having polar end groups.  The agent may be used in proportions of 0.1-5 per cent calculated on the weight of the soil, and is added in the form of an aqueous solution.  The agent may be obtained by the treatment of aliphatic, aromatic or heterocyclic carboxylic, sulphonic, or phenolic acids with the hydroxides of ammonia or the group 1 metals, e.g. sodium oleate, sodium palmitate, or the sodium salt of sulphonated lauryl alcohol.
Patent GB-652584-A (GB)
Title: Improvements in or relating to the port arrangements of internal combustion engines operated on the two-stroke cycle
Inventor: SAMMONS HERBERT
IPC: F02B75/02
Filed: 1948-11-09
Abstract: 652,584. Cylinders. NAPIER & SON, Ltd., D. Nov. 9, 1948, No. 29053. [Class 7(ii)] In a two-stroke engine cylinder with piston-controlled exhaust and inlet ports C<SP>4</SP>, C<SP>3</SP>, a guide to deflecting surfaces in the form of a lip J projects abruptly downwards from the upper edge of the inner end of each inlet port so as to direct the charge downwards and across the piston face. Curved deflector blades J<SP>1</SP> may be provided also. The cylinder liner is strengthened by a sleeve C<SP>2</SP>, which carries the deflectors J<SP>1</SP> in slots in the edges of the ports, the parts being welded or brazed together. Grooves K, communicate by slots with the water jackets D, D<SP>1</SP>.
Patent GB-1436767-A (GB)
Title: Rotary melting furnace
IPC: F27B7/34
Filed: 1973-06-19
Abstract: 1436767 Rotary furnaces MITSUI MINING & SMELTING CO Ltd 19 June 1973 [27 July 1972] 29085/73 Heading F4B A rotary furnace 1 suitable for melting zinc comprises a radiant tube 3 running axially of the furnace and having a burner 8, a scoop 16 for solid residues 25 feeding a discharge shoot 15 extending through the end wall of the furnace, the scoop being spaced from the side wall 17 of the furnace by a stainless steel annulus 29. The shoot 15 is closed by a valve 14 which is opened by a cam track (27, Figs. 4 and 5) or the discharge hood 4 when the end of said shoot 15 is at its lowermost position. Solid residues pass from the hood 4 to a bin 7 via a water-cooled screw feed 5 and a bucket elevator 6. Charge material fed from a hopper 2 by a rotary pocketed drum 11 enters the furnace through a casing 20<SP>1</SP> making a labyrinth seal 21 with an extension from the furnace drum containing helical feeder blades 22, 22<SP>1</SP>, 22<SP>11</SP>. Refractory lifters may be disposed in the furnace and hot gases from the radiant tube 3 pass via flues 18 to a chimney 13.
Patent GB-762332-A (GB)
Title: Improvements in binders for periodicals and the like
IPC: B42F11/02
Filed: 1954-10-08
Abstract: 762,332. Filing periodicals &c. HULL, W. Aug. 11, 1955 [Oct. 8, 1954], No. 29117/54. Class 146(1). A binder for periodicals and the like comprises a stiff middle portion 1 lying between two hinged covers 2, 3, flexible cord or wire 5 extending lengthwise of the middle portion 1 to form loops at the interior of the binder for engagement in the folds of the periodicals, bridge pieces 6 at or near each end of the middle portion 1 to space the loops 5 therefrom and a detachable filling piece or wedge 7 for insertion between the face of the middle portion 1 and the flexible loops 5 between the bridge pieces 6, the filling piece 7 being removed to assist insertion of a periodical and inserted to hold the periodical in position. As shown, the bridge pieces 6 are undercut at 9 to take the grooved ends 8 of the filling piece 7. The wooden or cardboard of the filling piece 7 is covered by fabric and the ends secured together to form a flap 10 to facilitate insertion or removal. The bridge pieces 6 may be of wood or rolled metal, glued or rivetted to the middle portion 1. The bridge pieces 6 may be provided with stops at each end to prevent disengagement of the loops 5 or, as shown, the middle portion 1 is recessed at 11 to provide stops 12. The loops 5 may be separate and secured by knotting as in Fig. 5, a wedge strip 15 being then inserted, and secured as by gluing to increase the tension of the loops. A cloth back 4, spaced from the middle portion 1, completes the binder. As shown in Fig. 5, a flexible pocket 16, of fabric or other sheet material, may be provided on the face of the middle portion, open at one longitudinal edge and closed at the other so as to locate the filling piece 7. A free flap may be provided on the open longitudinal edge to be folded into the pocket 16 to retain the filling piece 7.
Patent GB-1137945-A (GB)
Title: Improvements in discs for disc brakes
Inventor: HARRISON ANTHONY WILLIAM
IPC: F16D65/00
Filed: 1966-06-29
Abstract: 1,137,945. Brake discs. GIRLING Ltd. 23 June, 1967 [29 June, 1966], No. 29166/66. Addition to 934,096. Heading F2E. In a ventilated brake disc having air passages 13 extending therethrough between the inner and outer edges of the brake disc a separate annular member in the form of a band 14 is mounted on the periphery of the disc, the band having openings 16 registering with the outer ends of the passages 13 in the disc and being located against appreciable axial and circumferential movement relative to the disc by tags 17 and 18. In an alternative embodiment (Figs. 4 and 5, not shown) the metal band 14 is provided in a peripheral groove formed in the brake disc, tags being provided to prevent appreciable circumferential movement on the disc. In a further modified construction (Fig. 6, not shown), the encircling band is the same width as the axial thickness of the disc and is located against appreciable axial and circumferential displacement relative to the disc by deforming central portions of the band into the outer ends of the webs 12. The provision of the band member on the disc is adapted to damp out vibrations in the disc which cause brake squeal.
Patent GB-1057867-A (GB)
Title: Pesticidal plant spray compositions
IPC: A01N27/00
Filed: 1963-07-23
Abstract: A pesticidal plant spray concentrate comprises a viscous liquid polypropylene characterised by a viscosity of from 40 to 20,000 SSU at 21 DEG F in an amount of from 50 to 90 per cent by weight and a diluent selected from a solvent therefor or water. The concentrate may contain anionic, non-ionic or cationic surfactants many are specified.  Specific examples relate to the use of sorbitan trioleate, alkaryl polyether alcohol, and alkaryl sulphonates. Specified solvents are aromatic and aliphatic hydrocarbons, white oil, mineral spirits, butanols and cyclohexanone.  The concentrates may be formulated into emulsions, aqueous dispersions, solutions and aerosols pressurised with air, nitrogen or chloro-fluorinated hydrocarbons.
Patent GB-1107669-A (GB)
Title: Improvements in nickel base alloy and article
IPC: C22C19/05
Filed: 1966-06-29
Abstract: An alloy comprises: .Cr.20-23% .Mo.8-10% .Fe.17-20% .La.0.05-less than 0.3% .Co.1-3% .Mn.0.5-3% .C.up to 0.15% .W.0-2% the balance, apart from impurities such as Si up to 1% being nickel.
Patent GB-1524777-A (GB)
Title: Process for drying chlorinated polymers
IPC: C08J3/12
Filed: 1977-07-12
Abstract: 1524777 Drying chlorinated polymers HOECHST AG 12 July 1977 [16 July 1976] 29217/77 Heading F4G Chlorinated polymer obtained by a filterseparation process is dried in two or more fluidized beds connected in series, e.g. by screw conveyers, the first bed, which contains an agitator, being operated continuously, and the succeeding beds either continuously or bathwise. Hot air, which may be circulated, is the fluidizing gas.