baber/WOPTO huggingface dataset:
Patent GB-1070216-A (GB)
Title: Improvements in or relating to silica and silica-alumina gels
IPC: B01J20/10
Filed: 1964-08-04
Abstract: An improved hydrogel is prepared by mixing a washed, partially dried to 25 to 40% moisture content, finely-divided silica or silica-alumina hydrogel with sufficient aqueous medium to permit subsequent working without exceeding the "incipient wetness" of the gel until the mixture becomes plastic, and drying the mixture, say, to not less than 5% moisture content at 200 DEG  C., or first at a lower temperature followed by activation at, say, 590 DEG  C.  The partially dried gel may be obtained in finely-divided form in a pulverizer which breaks up the gel by means of rapidly rotating blades. The aqueous medium may be water or water containing acid, e.g. any mineral acid such as sulphuric, phosphoric, hydrochloric, nitric acid or water-soluble organic acid, such as acetic, formic acid.  The mixture may be passed and re-passed through, e.g. a screw mixer until in plastic condition, and the plasticized gel may be shaped, e.g., by extrusion, injection moulding, compression moulding or casting.  The gels may be dried continuously in a forced draft oven.  Silica gels containing an acid binder are dried at 93 DEG  C. prior to activation at 200 DEG  C. The shaped gels can be used as desiccants, desiccant fillers, catalyst bases.ALSO:Hydrogels of silica-alumina which do not decrepitate when contacted with water and which, when shaped, can be used as desiccants or desiccant filters are produced by mixing a washed, partially dried to 25 to 40% moisture content, finely divided silica-alumina hydrogel with sufficient aqueous medium to permit subsequent working until the mixture becomes plastic without exceeding the incipient wetness of the gel after the mixture has been rendered plastic, and drying the mixture say to not less than 5% moisture content at 200 DEG C or firstly at a lower temperature followed by activiation at say 590 DEG C.  The partially dried gel may be broken up to the finely divided condition in a pulverizer.  The aqueous medium may be water or mineral acid such as sulphuric, phosphoric, hydrochloric, nitric acid or water soluble organic acid such as acetic, formic acid.  The mixture may be passed and repassed through a screw mixer until in plastic condition, and then shaped by extrusion, injection moulding, compression moulding or casting.  The gels may be dried continuously in a forced draft oven.
Patent GB-1145938-A (GB)
Title: Improvements relating to centrifugal strainers of the continuous type
IPC: B04B3/04
Filed: 1967-07-04
Abstract: 1,145,938. Centrifugal strainer. HITACHI SHIPBUILDING & ENG. CO. Ltd. 4 July, 1967 [22 Oct., 1966], No. 30695/67. Heading B1D. A centrifugal strainer for sugar manufacture comprises a basket 1, lined with wire mesh and consisting of two axially abutting frusto-conical sections whose respective apex angles are 50 to 100‹ and 40‹ or less, and a relatively rotating scraper 15 which engages only the outer section. Slurry is delivered by pipe 14, accelerating cone 13 and apertures 3<SP>1</SP>, into the end 12 of the basket and is moved by centrifugal force alone along the inner section 1a of the basket. On reaching section 1b, the thickness of the solids layer changes abruptly, by virtue of the relative speeds of the basket and scraper, and the solids are washed at this point by liquid from nozzle 16, 17 delivered through apertures 18. The interior of the scraper structure 3 may have a dam (29) for the wash liquid and nozzle 17 may extend tangentially (Figs. 4, 5, not shown). Several nozzles may be fitted, one delivering steam to dry the solids. The basket and scraper are mounted on coaxial shafts 2, 4 and driven through a differential gear inside pulley 5. Solids-receiving shoot 23 is supported by an inflated tube 26.
Patent GB-1411404-A (GB)
Title: Brake line coupling system
IPC: B61G5/08
Filed: 1972-06-30
Abstract: 1411404 Valve actuating mechanisms; Bowden mechanisms DRESSER INDUSTRIES Inc 30 June' 1972 [14 July 1971] 30710/72 Headings F2V and F2K A coupling system for a brake line of a railway car comprises : a fluid controlled brake line valve (not shown); a pilot valve 26, Fig. 1, for regulating the flow of control fluid to the brake line valve; and an actuating mechanism 2 for actuating the pilot valve; the actuating mechanism comprising an outer casing 16, a spring projected plunger 6, and a conduit 20 containing a non-gaseous coupling means for changing the state of the pilot valve when the plunger 6 is depressed. In the embodiment shown in Fig. 1 the coupling means comprises a hydraulic fluid, but in a second embodiment, Fig. 2 (not shown), a flexible cable (54) connects the plunger (44) to the pilot valve (62).
Patent GB-935573-A (GB)
Title: Furnace for the pyrolytic production of acetylene
IPC: C07C2/78
Filed: 1961-08-25
Abstract: <PICT:0935573/III/1> In a furnace for the pyrolytic production of acetylene from methane or other hydrocarbons by partial combustion a chamber for mixing the hydrocarbon and oxygen is connected to a combustion chamber by a conduit 11 having a hollow fluid cooled throttle shield or baffle 15 of good heat conducting material located in a widened portion 13 of the conduit.  The gases are preheated before mixing and pass from the mixing chamber to the inlet end 12 of conduit 11 and thence past shield 15 to the furnace combustion chamber via conduit outlet 14.  Shield 15 is held in place by two ducts 16 and 17 which are used to pass a cooling fluid such as water through the shield.  Supplementary oxygen is supplied to the outlet end of the conduit through ring conduit 20 and nozzles 22. Further oxygen may be supplied if desired through a pipe 40 and nozzles 41 in the shield 15.  Fig. 3 (not shown) illustrates a furnace incorporating the above conduit, the coolant for the shield 15 passing first through a cooling jacket surrounding the combustion chamber.  The Specification discloses preferred relationships between the various dimensions of the conduit structure.
Patent GB-262265-A (GB)
Title: Improvements in calenders
IPC: D06C15/00
Filed: 1925-12-05
Abstract: 262,265. Whitley, A. A. Dec. 5, 1925. Embossing.-To facilitate the replacing of the Schreiner roll C of a calendering-machine having cheeks a', a<2> projecting from the frame A connected in front of the rolls B, C by the rods, these rods are made in two or more parts so constructed that one part can be turned out of the way of the roll C. As shown in Fig. 3, the tie rod is in two parts hinged at e<1>. The upper part d<4> can be turned down into the position shown in dotted lines, or passed through slots in the cheek a<1> and tightened up by means of a nut N. As shown in Fig. 1, the rod is in three parts d<1>, d<2>, d<3>. When the nut N is slackened the pin e<2> can be withdrawn and the part d<2> turned down about the pin e<1>. The part d<2> or d<4> carries one section c<3> of the four part bearing for the roll C, two other parts c<1>, c<2> being carried by the frame A, while the fourth part c<4> is adjustable so that the roll C, when it is to be removed, can be lowered on to a rail G fixed at one end to the frame bracket H and near the other end to the pin e'. By the use of a collar P and washer n a definite tension on the rod can be ensured. When the bottom roller B is to be removed, the pin e<1> is removed and the part d<1> of the tie rod turned down about the pin e<3>.
Patent GB-495999-A (GB)
Title: Improvements relating to electro-dynamic sound reproducers
IPC: H04R9/04
Filed: 1937-11-09
Abstract: 495,999. Sound-reproducers. WILLSON, H. C. Nov. 9, 1937, No. 30768. [Class 40 (iv)] In a moving-coil sound-reproducer, a spider g secured to the diaphragm e has a hole or metallic eyelet associated with a pin k mounted in the centre pole-piece b so that when the coil is correctly centred in the gap, the spider g and pin k can be secured together by a readily fusible alloy, such as solder, or by a cement. In a modification, Fig. 4, in which the diaphragm e has an external spider g, the holes or eyelets co-operate with pins k1, k2 mounted on the annular pole-plate c or on the chassis r. In a further construction, Fig. 6, the spider g has strips o engaging between, and soldered to, bifurcated extensions m carried by plates n secured to the pole-plate or to the chassis, and in a modified construction, Fig. 7 (not shown), the strips have downwardly-projecting ends located adjacent and secured by solder or cement to upwardly-projecting parts carried by the plates.
Patent GB-827542-A (GB)
Title: Improvements in or relating to a gas turbine power plant
IPC: F02C9/18
Filed: 1956-10-10
Abstract: 827,542. Gas turbine plant. GARRETT CORPORATION. Oct. 10, 1956 [Oct. 24, 1955], No. 30861/56. Class 110 (3). A gas turbine power plant comprising a compressor supplying air to a combustion chamber feeding a turbine driving the compressor, a separate power turbine and a heat exchanger having passages for heating the air supplied to the combustion chamber by the compressor turbine exhaust gases, has by-pass means arranged to by-pass one of the passages of the heat exchanger and fluid flow control means upstream of the inlet of the power turbine comprising valve means to control the fluid flow between complete shut-off of the by-pass and complete shut-off of the passage. The compressor 10 supplies air to the combustion chamber 19 through a passage 17 in a heatexchanger 16. The combustion chamber 19 supplies working fluid to a turbine 11 driving the compressor 10 the exhaust of which passes through a passage 23 in the heat exchanger 16 to a separate power output turbine 26. A conduit 30 by-passes the passage 17 in the heat exchanger 16. A second conduit 32 by-passes the passage 23 in the heat exchanger. Valves 31, 33 are provided to divert a part or the whole of the fluid through the conduits 30, 32 or passages 17, 23. The valves 31, 33 may be linked with the control of the fuel valve 34. A variable-area inlet nozzle 40 may be provided to maintain a high turbine inlet temperature under part load conditions. The valves 31, 33 may also be operated by pressure and temperature sensing elements located at the inlet of the turbine 26.
Patent GB-678944-A (GB)
Title: Improvements relating to power units including internal combustion engines
Inventor: GILBERT DONALD ALBERT
IPC: F02B37/22
Filed: 1949-12-01
Abstract: 678,944. Pumps. NAPIER & SON, Ltd., D. Jan. 15, 1951 [Dec. 1, 1949], No. 30863/49. Class 7(ii) [Also in Group XXVI] In a power plant applicable to aircraft, a ;multi-stage turbine 18 exhaustdriven by an I.C. engine 10 is boosted as at take-off by fuel burnt in a combustion chamber 14, the gases then byepassing the first turbine stage 22 and being supplied direct to a later turbine stage 23 with a larger throat area. As applied to a two-stroke engine 10 supplied with air by an engine-driven supercharger (not shown), and powering an airscrew 11 through gearing in a casing 12, a three-stage turbine 18 powers a second airscrew 21, through further gearing in the casing 12, and/or a compresser 20 feeding the supercharger. Extra air bled off from the compresser or supercharger may be fed to the chamber 14. During cruising flight, when no fuel is burnt in the chamber 14, a sleeve 31, preferably sliding helically, is moved by a lever 32 to the right to clase the byepass and cause the gases to pass through all the turbine stages. The sleeve 31 need not blank off the entry to the first stage 22 completely when the byepass is open. The lever 32 may be coupled to the fuel supply control valve 16 of the chamber 14 so that the byepass is  opened only when fuel, or more than a predetermined amount thereof, is being supplied. The turbine may have more than three stages. More than one byepass may be provided, as to the second and third stages respectively.
Patent GB-1015961-A (GB)
Title: Improvements in the coating of base materials
Inventor: SMITH EDWIN JAMES
IPC: C22C21/00
Filed: 1962-08-11
Abstract: <PICT:1015961/C6-C7/1> Metal and other surfaces are coated by an aluminium/manganese alloy containing 10-70% Mn and preferably 16-30%. Electrolytic plating may be used as the coating method using a molten electrolyte containing AlCl3 and alkali metal halides in which up to 2% of a manganese salt is added, e.g. AlCl3 80%, NaCl and KCl 10% each and 0.5-1% MnCl2. Pure aluminium anodes alone or with manganese anodes or alternatively Al/Mn alloy anodes may be used, when the Mn salt is omitted from the electrolyte.  The fused halide electrolyte may include complexes formed by adding ammonia, or the inorganic electrolyte may be replaced by organo-metallic compounds of Al and Mn.  The alloy is applied to metal substrates by electroplating, and hot dipping into the molten alloy, and may be applied to plastics or paper by vapour deposition, sputtering, or chemical decomposition. The melting points of Al/Mn alloys range from 790 DEG C. for 10% Mn to 950 DEG C. for 30% Mn, and the hot dip bath of molten alloy is held at 50-100 DEG C. above the melting point.  A ferrous substrate is used. The molten alloy may also be sprayed on this substrate. Vapour deposition on metallic or non-metallic substrates may be effected by vaporizing the alloy or by using separate vapour sources. In the latter case, alternate layers of Al and Mn may be applied in correct thicknesses and the layers alloyed by heating.  Cathode sputtering is effected using a cathode of the alloy of desired proportions.  The alloy coating may also be formed by reduction of volatile compounds of Al and Mn mixed in the desired proportions and heat decomposed on a metal surface.  In a suitable apparatus, steel strip 10 after electrolytic pickling, passes through a heater 12 to a conditioning unit 15 where the hot strip free of moisture is treated with an inert or reducing gas, and then enters the electrolytic bath through flaps 21.  It passes between anodes 45-52 over rollers 55-61 and 56-60, and emerges through flaps 38, passes through squeegee rolls 65, and passes out through flaps 61, 67 to washing and drying treatments.  A slight reduced pressure is maintained in the exit chamber 36, and an inert gas fills the upper space of the electrolytic chamber 40, admitted through a valve 42. The main casing of the cell 28 is surrounded by an insulating jacket 70 and may be spaced therefrom to provide for heating elements. Conditions include, C.D. up to 100 A.S.F. and bath temperature 325  DEG C.  Graphs are given showing relation of bath composition with alloy deposited and of the brightness of the plate related to Mn content of the alloy.
Patent GB-710068-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1952-12-05
Abstract: 710,068. Absorption refrigerating systems. ELECTROLUX, Ltd. Dec. 5, 1952 [Dec. 6, 1951; Dec. 6, 1951], No. 30913/52. Class 29 The conduits of. the expeller or boiler system are so disposed as to allow unobstructed application of cup-shaped vacuum insulation vessels 14, 15 to the boiler either from above or below. The liquid heat-exchanger 13 may also be enclosed in the vacuum vessel. As shown in Fig. 1, the vapour outlet pipe 24, 25 is bent downwardly so as to be adjacent to the inlet 19 of the liquid heat-exchanger, and the electric leads 12 for the heating cartridge enter at the same level, thus leaving the top and bottom of the boiler unobstructed so that the vacuum vessels 14, 15 can be applied from above and below and the gap between them bridged by a flexible insulating sleeve 18 with passages for the conduits. The inner walls of the vacuum vessels are provided with a reflecting coating. The inner tube 20 of the liquid heat-exchanger 13 supplies rich liquor to the expeller tube 21 welded to the heating pipe 10. The pump tube 22 pumps weak liquor from the bottom of the expeller tube 21 to the limb 23 of an inverted U-tube 23, 24 also welded to the heating pipe and connected with the outer tube of the liquid heat-exchanger. Vapour from the expeller tube 21 and the weakliquor pipe 23 passes by pipes 24, 25 to the condenser, and any condensate precipitating in the pipes 24, 25 is vented to the expeller 21 through a pipe 26. Fig. 2 shows a modification in which the liquid heat-exchanger 13 is arranged within the vacuum insulation vessel 14 and has its inner tube 20 welded to the heating pipe 10 at 27 so that rich liquor is pumped to the vapour conduit 24, from the bottom part 21 of which it is pumped by pump pipe 22 to the expeller tube proper 23 welded to the heating pipe and connected at its lower end to the outer pipe of the liquid heat-exchanger.. Vapour expelled in the tube 23 passes downwardly through pipe 24 where it is analysed by the rich solution and through a helical conduit 28 arranged inside the' convolutions of the heat-exchanger 13 to the vapour conduit 25. A drainage pipe 26 connects the vapour conduit to the part 21. Two electric heaters are used in series, a low temperature heater for the pump 22 and a higher temperature heater for the expeller 23. The part 21 of the conduit 24 can be arranged in heat-conductive relation with the heating tube 10 to form an expeller. The upper or lower vacuum vessel may be omitted and ordinary insulation used. In a further modification the liquid heatexchanger is formed of two U-shaped conduits welded together or arranged concentrically. The heating cartridge may be inserted from above, the leads passing through a guide channel free from the upper vacuum vessel so that this may be readily removed for replacement of the cartridge, which may be formed in two spaced sections, one heating the expeller tube and the other the pump pipe.
Patent GB-1438201-A (GB)
Title: End face seal between a fixed part and a part which is capable  of moving in rotation
IPC: F16J15/34
Filed: 1974-07-12
Abstract: 1438201 Seals COMMISSARIAT A L'ENERGIE ATOMIQUE 12 July 1974 31004/74 Heading F2B In a hydrostatic end face seal, fluid supply bores 3 open into acurate troughs 10, 11, having their ends overlapping circumferentially, so as to define a staggered leakage path between them.
Patent GB-209244-A (GB)
Title: Improvements in adjustable mountings for electric lamps
IPC: B60Q1/04
Filed: 1922-11-13
Abstract: 209,244. Puckert, E. W. Nov. 13, 1922. Instrument and like boards, lamps for illuminating.-A lamp for illuminating the indicators on a motor-vehicle comprises an electric lamp bulb disposed within a rotatable sleeve 2 having a lightemitting aperture 2<1> at one side, the whole lamp being rotatably mounted in a carrier 9 secured to the steering column. A cap 4 provided with a light-emitting aperture corresponding to the aperture 2<1> is rotatably mounted on the upper end of the sleeve 2 so that the size of the light passage may be varied.
Patent GB-733806-A (GB)
Title: Apparatus for use in the surface treatment of helical springs or other cylindrical work pieces
Inventor: STEELE HENRY JACK
IPC: B24C3/32
Filed: 1952-12-06
Abstract: 733,806. Sand-blast ; magnetic work-holders. LUCAS (INDUSTRIES), Ltd., J. March 5, 1954 [Dec. 6, 1952], No. 31014/52. Class 60. An apparatus for use in the surface treatment of helical steel springs or other cylindrical magnetizable workpieces, comprises a pair of iron rollers d, Fig. 2, having between them a pass in which a work-piece can be held and rotated by contact with the rollers, and intermittently operable electromagnetic means for magnetizing the rollers. The rollers d are formed on or secured to iron spindles c which may be adjusted towards and away from each other to vary the width of the pass by right- and left-hand screws 33 provided with hand wheels 34. On one or each spindle c and preferably at each side of the rollers d is mounted an electromagnet k, Fig. 1, enclosed by a flexible cover m. Sprockets e and a chain drive f tensioned by a spring- loaded idler sprocket i connect the spindles c to a pulley h driven by a belt from an electric motor. The work-piece is treated with abrasive material carried by oil or water and discharged alternately through nozzles, i.e. under the action of compressed air. These nozzles are connected by lugs to a rod z reciprocated by an electrically-driven crank mechanism 3 and adapted to operate a shuttle valve 13 which transfers the compressed air supply from one nozzle to the other during each reciprocation, the supply also being under the control of a solenoid-operated valve 11. The rod z is offset in relation to the pass between the rollers d so that work-pieces may be fed to the pass from a hopper by way of a flexible duct o. The latter is alternately compressed and released at spaced points by pads p so that the work-pieces are fed singly, the pads being operated from a cam-shaft t which also operates switches for the valve 11 and the electromagnets k so that these parts operate in synchronism. When the rollers d are demagnetized, the treated work-piece falls on to a delivery shoot 32 which has a slot along its base to permit the abrasive material to pass into a trough b for return to the nozzles. The motor for diiving the cam-shaft t, the electromagnets k, and the solenoid for the valve 11 are supplied by a rectifier from A.C. mains to which the motors for the crank drive for the rod z and for rotating the rods c are connected through switches.
Patent GB-1355674-A (GB)
Title: Production of regeneratable active carbons
IPC: C01B32/384
Filed: 1971-07-02
Abstract: 1355674 Active carbon; water purification DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 2 July 1971 [4 July 1970] 31039/71 Headings C1A and C1C A regeneratable active carbon suitable for water purification comprises carbon grains having an inner surface area of more than 1000 m.<SP>2</SP>/g., iodine adsorption numbers of more than 1000 mg./g. of carbon, an adsorption capacity with respect to tetrapropylene benzene sulphonate of at least 12% by weight, a total pore volume of at least 1À20 ml./g. of carbon and a fatigue factor i.e. reduction in adsorption capacity in the dechlorination of drinking water of less than 1À5. The carbon is made by forming a paste of powdered carbon with wood tar and as catalyst an alkali compound in an amount of from 12 to 20% by weight of the wood tar and carbon mix, compacting the mix under an absolute pressure of from 20 to 150 kp./cm.<SP>2</SP>, size reducing and sifting the compact mixture, low-temperature carbonizing the mixture, e.g. at 400-450‹ C. and activating the carbonized product, e.g. with steam. The catalyst may be KOH and/or K 2 CD 3 . Specified carbons are charcoal, carbon black, mineral coal, lignite, peat, coke and petroleum coke. The carbon product may include non-carbon materials such as magnesium, aluminium, chromium, silver or manganese oxides, copper carbonate, silicas and kieselguhr. These optional additives function as flocculating, germ removing, filtration and deodorizing aids. Drinking water, free from colour and odour, are obtained by passing water, aqueous solutions and suspensions through a layer of the above active carbon.
Patent GB-618101-A (GB)
Title: Improvements in or relating to over-voltage cut-out circuits
IPC: H02H3/20
Filed: 1946-10-18
Abstract: 618,101. Protective cut-out arrangements. BIRLEC, Ltd., and MAY, E. Oct. 18, 1946, No. 31105. [Class 38 (v)] In an overload cutout arrangement, a potential divider 1 is connected across the terminals 2, 3 of an A.C. source and a discharge tube 4 and the coil 6 of a D.C. relay are connected in series across the potential divider, the discharge tube serving to rectify wholly or in part the voltage applied to the relay. The discharge tube may be a neon tube with one electrode of small and the other of large area. The rectifying action of the discharge tube may be supplemented by a further rectifier.
Patent GB-190614-A (GB)
Title: Improvements in, or relating to, domestic refrigerators and like cooling devices
IPC: F25D1/02
Filed: 1921-11-22
Abstract: 190,614. Blincow, J. E. Nov. 22, 1921. Refrigerators, domestic and like, cooled by means of the ordinary water supply, comprise an outer cylindrical shell A and an inner cylindrical chamber B secured together by flanges b, d, a space c being provided between the inner and outer surfaces through which the water flows. Baffles g, g<1> are formed on the chamber B to direct the water around it, and the chamber B is provided with shelves f and closed by a hinged door D.