baber/WOPTO huggingface dataset:
Patent GB-810701-A (GB)
Title: Improvements in or relating to filter concentrators
IPC: B01D35/16
Filed: 1957-02-01
Abstract: 810,701. Liquid filters. KRAUSS-MAFFEIIMPERIAL G.m.b.H. & CO. Feb. 1, 1957 [Aug. 22, 1956], No. 3595/57. Class 46. After concentrating suspensions in a liquid by the aid of hollow filters and removing a pressure difference which has promoted the filtration, the level of the suspension relative to the filter is lowered to permit the hydrostatic pressure of the filtrate within the filter to release the cake deposits from the filter. Hollow plate filters 4 are suspended in a trough 1 filled with the suspension to be concentrated, the filtered liquid being drawn from the centres of the plates 4 through a common delivery pipe 5 connected to a source of vacuum via a rotary valve 6. When filtration is complete the valve 6 is turned to admit atmospheric air to the pipe 5 and neutralise the pressures within and without the plates. The battery of plates is then lifted clear of the trough and the outflow of the liquid in the plates dislodges the filter cake which falls into the trough. The hollow filter may be of disc or drum type and the level of the suspension may be lowered by removing some of it from the trough.
Patent GB-346079-A (GB)
Title: Improvements in or relating to preserving rubber
IPC: C08K5/18
Filed: 1930-02-04
Abstract: The Specification as open to inspection under Sect. 91 (3) (a) states that oils and soaps may be preserved by the addition thereto of substances having the general formula <FORM:0346079/III/1> in which R<1>, R<2>, R<3> are benzene or substituted benzene groups.  Specific examples of such compounds are diaminotriphenylmethane, p nitrophenyl bis 4 amino m xylyl methane, phenyl bis p amino tolyl methane, 4 methyl 4<1> 4<11> diaminotriphenylmethane.  This subject-matter does not appear in the Specification as accepted.ALSO:Diamino-triphenyl-methane is prepared by heating aniline and benzaldehyde with aniline hydrochloride, and distilling in steam with a caustic alkali to split off aniline from the aniline addition product so formed.  The diamino-triphenyl-methane may be heated with o-toluidine or m-phenylenediamine to give crystalline materials melting at about 121 DEG  and 130 DEG  C, respectively.ALSO:The oxidation of rubber is retarded by treatment with a compound having the general formula <FORM:0346079/V/1> in which R1, R2, R3 are benzene groups, or substituted benzene groups. Specific examples of such compounds are diaminotriphenyl methane, p-nitrophenyl bis 4-amino m-xylyl methane, phenyl bis p-aminotolyl methane, 4-methyl-41-411-diaminotriphenyl methane.  The preparation of diaminotriphenyl methane is described in Berichte, vol. 61, p. 1294; that of the other compounds specified, in Beilstein, vol. 4, p. 702.  Diamino triphenyl methane may also be caused to react with o-toluidine or m-phenylene diamine by heating them together, to form crystalline bodies which are efficient antioxidants.  The Specification as open to inspection under Sect. 91 (3) (a) states that these substances may be used as preservatives for oils and soaps.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1212019-A (GB)
Title: Improvements in or relating to automatic or semi-automatic seaming apparatus
IPC: D05B23/00
Filed: 1967-08-25
Abstract: 1,212,019. Sewing: turning inside out. DEXEXOMAT Ltd. 12 Aug., 1968 [25 Aug., 1967; 24 Jan., 1968], Nos. 39137/67 and 3798/68. Headings D1G and D1X. In a machine for seaming toes of tubular hosiery and stocking blank is positioned on a carrier 12 which moves in a straight line to a clamp 14 which takes the toe of the stocking and moves in a direction at right angles to the line of motion of the carrier to present the stocking toe to the sewing machine 18. When the blank is placed on the carrier 12 suction acts through apertures 100 to hold the toe in position and the carrier may be manually rotated for inspection. The carrier is then angularly locked in position and moved towards the clamp 14 which takes it, suction is then removed from the apertures 100 and the carrier retracted the welt being taken by stripping fingers 76, 78. Adjacent the clamp jaws 54' 56' take the stocking toe to prevent curl and as the clamp moves towards the sewing machine the toe is gradually removed from these jaws. The stripping fingers move with the clamp and also have a vertical component of motion, all motions being produced by hydraulic or pneumatic pistons, and the stripping fingers release the stocking after seaming over a reversal tube 61 which sucks the stockings through for collection in a suitable container. The toe ends of the stocking are cut off by a suitable cutter and collected pneumatically in a waste bin. The stitching thread may be severed mechanically or electrically. Safety interlocks are provided to produce the correct sequence of operation.
Patent GB-284862-A (GB)
Title: Improvements in gas-heated boilers
IPC: F24H1/38
Filed: 1927-02-10
Abstract: 284,862. Potterton, A. B., and Fotterton, T. F. C., (trading as Potterton, T.). Feb. 10, 1927. Sectional boilers. -A gas - heated boiler consists of two parts each comprising two sectional headers H, H<1>, K K<1> connected by waterways I, the walls of the water-ways in the two parts forming continuous gas flues L from the base containing the burners to the chimney N. The two parts are shaped with a re-entrant and a salient as shown fitting one upon the other. Ribs I<1> are fitted in the lower flues and baffles M in the upper. The boilers are interconnected by a pipe joining the header H<1> to either the header K or K<1>.
Patent GB-102096-A (GB)
Title: Transmission Gearing for Motor Vehicles.
Inventor: KUHN WILLIAM OSCAR
IPC: F16H3/34
Filed: 1916-03-14
Abstract: 102,096. Kuhn, W. O. March 14. 1916. Variable-speed and reversing toothed gearing of the kind in which the gears are carried on separable shafts is arranged so that the shifting of the gears can only be effected when the gears are out of mesh. The engine shaft 10, Fig. 3, rotates in a casing A and is provided with a sleeve 11, which carries gear-wheels 13 - - 16, 16<1> and flanges 17 - - 22 and is connected to an operating-rod 12. The gears 13 - - 16 are adapted to mesh with gears 33 - - 36 carried on a shaft 28, which is eccentrically mounted in cylinders 27 carried in bearings 25, 26; for reversal, the gear 36 is meshed with a pinion 24 on a countershaft 23. Each cylinder is provided with a lever 29 connected by links to an operating- shaft 30, Fig. 5, and with loosely-mounted rings 37 provided with arms 38 adapted to engage between the flanges 17 - - 22. The arms are operated by lost-motion connexions 40, 41 from the cylinders 27. On operating the shaft 30, the initial rotation of the arms 29 effects the disengagement of the gears; further movement disengages the arms 38 from the flanges 17 - - 22 and permits longitudinal movement of the shaft 10 to effect change of speed. On the return movement of the operating-shaft 30, the selected gears are meshed, and the arms 38 re-engage the flanges 17 - - 22 to lock the shaft 10 against longitudinal movement.
Patent GB-875078-A (GB)
Title: Crystallisable compounds particularly for use as catalytic agents and process for their preparation
IPC: C08F4/6592
Filed: 1958-02-05
Abstract: Unsaturated hydrocarbons, in particular ethylene, butadiene and acetylene, may be polymerized in solution in heptane or other paraffinic hydrocarbon solvent at temperatures from 20 DEG -120 DEG C. and atmospheric or superatmospheric pressure using as a catalyst a compound of formula: (C5H5)2TiX2AIRmXn in which R is a C1-C6 alkyl radical, X is a halogen atom, m is 1 or 2, n being 0 when m is 2 and n being 1 when m is 1 (see Group IV(b)).  Specified compounds are (C5H5)2TiCl2Al(C2H5)2 an (C5H5)2TiCl2AlCl(C2H5).ALSO:The invention comprises compounds of formula (C5H5)2TiX2AlRmXn in which R is a C1-C6 alkyl radical, X is a halogen atom, m is 1 or 2, n being 0 when m is 2, and n being 1 when m is 1.  Specified compounds are (C5H5)2TiCl2Al(C2H5)2 and (C5H5)2TiCl2.AlCl(C2H5). They may be prepared by reacting a bis(cyclopentadienyl)titanium halide in hydrocarbon solution under anhydrous and oxygen-free conditions with an excess of an alkyl aluminium compound (e.g. triethyl aluminium or diethyl aluminium monochloride) at a temperature of from 20-100 DEG C.  The product may be recrystallised from a hydrocarbon solvent. The compounds of the invention are effective as catalysts in the polymerization of unsaturated hydrocarbons (see Group IV(a)).
Patent GB-1246383-A (GB)
Title: Improvements in and relating to material screw-feed apparatus
Inventor: SOOJIAN VAHN J
IPC: B65G65/46
Filed: 1969-01-23
Abstract: 1,246,383. Screw conveyers. HOWE RICHARDSON SCALE CO. 23 Jan., 1969 [1 April, 1968], No. 3865/69. Heading B8A. Particulate material in a bin 11 is fed sideways by spirals 24, 26 (and 25, 27, not shown) mounted on shafts 17, 18 to a coreless screw 42 which feeds the material leftwards to a discharge point 57. A hollow rod 44 is provided to scrape the inside of the screw 42 and lies on the screw 42, its left end being lightly loaded by a spring 53. In this way, it is stated, choking of the screw is prevented and a uniform feed obtained.
Patent GB-1195603-A (GB)
Title: Improvements in and relating to a Device for Sampling Particles in a Gas
Inventor: LASSEUR CLAUDE
IPC: G01N1/24
Filed: 1968-01-25
Abstract: 1, 195,603. Measuring radio-active particles. COMMISSARIAT A L'ENERGIE ATOMIQUE. Jan. 25, 1968 [Jan.31, 1967], No. 3943/68. Heading G1A. [Also in Division B1] Air is drawn through conduit 12, between radial fins 24 which divide an annular gap between hollow cones 1, 14, through a section of filter paper 15 and out through pipe 18, so that radio-active particles are deposited uniformly over paper 15, their activity being detected by a scintillation counter 3. The gas flows turbulently into chamber 10, but streamline flow in imposed by the vanes and maintained across the paper, at a flow rate of 8À5 cubic metres/hour, corresponding to 7 times human respiration. The paper 15 is supported by a grid 16 and retained by a ring 17, while cone 1 makes a bayonet connection with ring 4, screwed into tube 2 which encloses the counter. The inlet and outlet conduits are secured by quick fastening couplings. Tube 2 is enclosed by lead rings to exclude spurious radiation.
Patent GB-961660-A (GB)
Title: Improvements in or relating to steam boilers
Inventor: LAUNDON JOHN STANLEY
IPC: F22B7/12
Filed: 1960-02-04
Abstract: 961,660. Return - tube steam boilers. RICHARDSONS WESTGARTH & CO. Ltd. Feb. 6, 1961 [Feb. 4, 1960], No. 4018/60. Heading F4A. A fire-tube, shell-type boiler has a pair of internal combustion chambers 12, 14 joined respectively to furnace tubes 16, 18, which provide one combustion gas pass and to nests of tubes 20, 22 which provide a second pass for the said gas. To obviate the need for supporting the combustion chamber wrapper plates 24 by stays the cross-section of each combustion chamber taken in a plane parallel to the end plates is of substantially dumb-bell form, as shown in Fig. 2, the wrapper plates being of such a form that there is a smooth transition from the circular arcs defining the upper and lower parts of the chamber to the concave curves defining the central waisted portion. The chambers 12, 14 are so arranged within the shell 10 of the boiler that a space of U-shaped cross-section, is formed between them in which lies a nest of tubes 28 which provides a third combustion gas pass and which communicates with the tubes 20, 22 through a metal chamber 30.
Patent GB-764565-A (GB)
Title: Improved machine for washing olives and the like
IPC: A23N12/02
Filed: 1955-02-11
Abstract: 764,565. Washing olives &c. DIEFENBACH, G. Feb. 11, 1955 [Feb. 22, 1954], No. 4111/55. Class 28(2) Olives &c. placed in a hopper 1 fall down to a washing, basin 3 which is rotated whereby centrifugal force ejects the olives out over the top of the basin on to a perforated draining surround 6, from which the olives are swept round to a discharge outlet 8 by vanes 4 fixed radially on the outside of the basin 3. Water is supplied to the basin by a pipe 2. Heavy dirt collects in the bottom of the basin and lighter dirt on the sloping side.
Patent GB-926014-A (GB)
Title: Chlorination process
Inventor: ROBERTS ROBERT
IPC: C07C51/363
Filed: 1961-02-03
Abstract: Chlorination of o-cresol is effected by reaction with sulphuryl chloride in presence of metal halide catalyst and fuller's earth to give mainly 4-chloro-2-methylphenol; 6-chloro-2-methylphenol, and 4:6-dichloro-2-methylphenol are minor products.  Specified catalysts are AlCl3, FeCl3, SnCl4, TiCl4 and ZnCl2.  The product may be used to obtain 2-methyl-4-chlorophenoxyaliphatic acids, e.g. 2-methyl-4-chlorophenoxyacetic acid using NaOH and ClCH2 CO2H; presumably 6-chloro and 4:6-dichloro-2-methylphenoxyacetic acids are also present.  The fuller's earth need not be removed before the chlorinated cresol is converted to the acid.
Patent GB-546510-A (GB)
Title: Improvements in or relating to propeller blade supports
IPC: B64C11/06
Filed: 1941-03-27
Abstract: 546,510. Screw propellers. HOOVER, W. S. March 27, 1941, No. 4161. Convention date, April 16, 1940. [Class 114] A variable-pitch propeller blade is mounted in a hubsocket by means of balls which engage grooves formed in the propeller-shank or a sleeve thereon, and registering grooves formed in rings or a sleeve inserted between the propeller-shank and the hub-socket. The blade 22, Fig. 1, is threaded on to a shank 26 on a pitchchanging gear 24 and is locked-thereto by screws 28. Rows of balls are arranged in grooves formed a sleeve 30 on the blade, and in rings 36 which are inserted in the socket 20 and retained by a nut 48. The grooves in the rings are open on one face, the bottom ring being preferably inverted to permit preloading of the bearing. The inner grooves may be formed directly in the blade, the sleeve 30 being omitted. An abutment 40 is arranged between the gear 24 and the end 44 of the socket. In alternative constructions, the blade is threaded into the shank 26, the inner and outer ballgrooves being formed in the shank and in rings respectively; or, as shown in Fig. 4, the inner grooves are formed in the shank 26, and the outer grooves are formed in a sleeve 58roidep v d with apertures 60 for inserting the balls 38. The grooves are deeper than the apertures so that when the nut 48 is tightened, the balls are moved out of register with the apertures. In the construction shown in Fig. 3, the outer grooves are formed in a sleeve 62, and the inner grooves are formed directly in the blade 22<SP>1</SP>, and communicate with apertures 66 for inserting the balls, The blade is formed with an integral pitch-changing gear 24.
Patent GB-688170-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/42
Filed: 1951-02-21
Abstract: 688,170. Variable pitch propellers. UNITED AIRCRAFT CORPORATION. Feb. 21, 1951. [April 8, 1950] No. 4214/51. Class 114. The hydraulic fluid for operating the pitch varying motors is contained in a reservoir 40 formed by members 34, 36 integral with and surrounding the blade sockets 32. The reservoir is closed by a plate 50 in which are carried main and auxiliary operating pumps, the control valve 90 and the pressure relief valve. Outside this plate, and enclosed by a plate 69 is a second, low pressure reservoir 68. The fluid supply to the pitch varying motors enters the blades through a transfer screw 170 as described in Specification 688,169. Pitch lock devices are fitted as described in Specifications 683,729 and 683,786.
Patent GB-1093025-A (GB)
Title: The smokeless combustion of bituminous caking and non-caking coals
Inventor: PAINE ROBERT ARTHUR
IPC: F23K3/06
Filed: 1964-03-17
Abstract: 1,093,025. Boiler furnace. COAL INDUSTRY (PATENTS) Ltd. March 12, 1965 [March 17, 1964], No. 11220/64. Heading F4B. A boiler for burning bituminous caking or non-caking coals comprises a combustion chamber 4 defined by an inclined grate 2, an inclined refractory roof 6 and refractory walls 7, 8, there being a feed inlet slot 9 for downward entry of fuel into the chamber 4 and a pneumatic thermosensitive probe 15, 17 for determining and effecting adjustment of the fuel bed level 16. The fuel fed by a screw (not shown) falls on to the bed 16 where it is carbonized and burnt by an undergrate air blast from duct 13 which comprises 15-30% of the total combustion air requirement, the evolved volatiles being burnt in chamber 4 by overgrate air from air inlets 14 in the refractory roof 6 which is inclined between 30 and 45 degrees. The evolved gases flow through passage 11 to flue 12 heating the water in the jackets 10. A reciprocable declinkering ram 18 is provided to discharge grate ash to ash box 21. Alternatively a reciprocable grate 22 may be used. In operation fuel is fed into the combustion chamber 4 in excess of the rate of combustion to increase the bed level 16. This obstructs the outlet of conduit 15 through which air is delivered, so reducing the hot gas intake into conduit 17 which houses temperature sensitive means, since the conduits 15, 17 are joined at a point remote from the combustion chamber. The temperature sensitive means respond to the temperature drop due to the decreased flow of hot gases past them by stopping the fuel feed. When the fuel bed level falls below a predetermined level, more air can pass along conduit 15, consequently more gas is drawn along conduit 17 so the temperature rises and the temperature-sensitive means restores the fuel feed. When operating at a reduced output, all air supplies are shut off till the temperature falls to a predetermined value. Undergrate air only is then supplied to burn away the fuel bed until a temperature of 700‹ C. has been reached. The pneumatic thermosensitive probe 15, 17 is then switched on and initiates the supply of fuel and overgrate air which continues until the desired bed level has been reached when all the air supplies are again switched off to return the cycle to its starting point.
Patent GB-1503486-A (GB)
Title: Method of and apparatus for filtration
IPC: B01D25/12
Filed: 1974-01-30
Abstract: 1503486 Operating a filter press MOSELEY RUBBER CO Ltd 27 Jan 1975 [30 Jan 1974] 04232/74 Heading BID Sewage or other slurry is fed into chambers A, B, which are defined between pairs of cloths respectively lining cavities I, J of a filter press plate K and covering impermeable membranes E, F, filtrate drainage channels (not, shown) being provided behind the cloths, and a back pressure is maintained on the outer sides of membranes E, F to ensure that equal pressures are maintained in chambers A, B even the filtration rates in chambers A, B differ or if one of inlets c, d clogs, thereby preventing buckling of plate K. Chambers o and n may be supplied with compressed air whose pressure is increased as the slurry pressure in chambers A, B rises, or the chambers o, n are pressurised first and air displaced therefrom through a relief valve as slurry is pumped into chambers A, B, displacing the membranes to positions E', F'. The various chambers o, n in the filter press may be interconnected so that air is displaced from those adjacent chambers being filled with slurry to the others, if any. After filtration, filter cakes are squeezed by advancing membranes E, F, using the same compressed air supply as produced the back pressure or another pressurised fluid supply.
Patent GB-822438-A (GB)
Title: Apparatus for handling and transporting tobacco leaves
IPC: A01D45/16
Filed: 1958-02-10
Abstract: 822,438. Gathering tobaccoleaves. DE KOCK, J. J. L., and DE KOCK, J. M. Feb. 10, 1958 [Jan. 15, 1958], No. 4270/58. Class 6(3). An apparatus for carrying tobacco-sticks during the gathering of tobacco-leaves conprises a bar 1 supported by one or more wheels 3 or skids at its lower end and formed at its upper end with a hooked part 4 which can be placed over the shoulders of a worker, the apparatus having brackets 14, 17 for holding the tobaccostick 15 and having twinebobbins 7 for tying the gathered leaves on to the stick.
Patent GB-366730-A (GB)
Title: Improvements in and relating to variable speed gearing
IPC: F16H3/06
Filed: 1931-02-11
Abstract: 366,730. Change speed gearing. WRIGHT, F. H., 1, Golders Green Crescent, and LEWIS, E. W., 10, Hatfield House, Great Titchfield Street, both in London. Feb. 11, 1931, No. 4315. [Class 80 (ii).] Change-speed gearing of the lay-shaft type with single-helical gearing throughout comprises a plurality of gears 6, 7 slidable bn the driven shaft 4 on splines 16 of the same axial pitch as the gears. A clutch face 6a on the gear 6 preferably has helical teeth of the same axial pitch to engage like teeth on the face 3a of a constant-mesh pinion 3 on the driving-shaft 1, to effect direct driving.
Patent GB-104568-A (GB)
Title: Improvements in or relating to Carburetters for Internal-combustion Engines.
Inventor: HUTCHINSON EDWIN
IPC: F02M9/02
Filed: 1916-03-24
Abstract: 104,568. Hutchinson, E. March 24, 1916. Spray carburettors.-In a carburettor having a main straight-through passage g controlled by a manuallyactuated piston throttle valve b, additional air is admitted to the straight-through passage through a port d and a conduit f in the throttle valve, the amount of air admitted being controlled by a manuallyactuated piston valve e. Primary air enters at h and flows past the nozzle a through a restricted aperture i. A baffle j is provided on the air-inlet side of the throttle valve. In a modification, the nozzle is of the submerged type and discharges into a chamber which is open to the atmosphere through an aperture controlled by a valve actuated from the throttle valve b. The Provisional Specification states that the additional air supply may be controlled by a rotatable shut. ter, a sliding or hinged cap, an automatic valve, or by a laterally expanding and contracting piston. Specification 103,847 is referred to.
Patent GB-801152-A (GB)
Title: Improvements in tubular heat exchangers
IPC: F28F1/42
Filed: 1956-02-13
Abstract: 801,152. Heat exchangers. HUET, A. Feb. 13, 1956 [April 1, 1955; Sept. 28, 1955], No. 4448/56. Class 64(3) In a tubular heat exchanger in which the external fluid flows in a direction transverse with respect to the axes of the tubes a through passages formed between tubes, the tubes are of oblong cross-section and are arranged in rows with the major axes of all the tubes in a row in alignment, and are so shaped that passages formed between adjacent tube rows undulate and vary in width in the direction F‹ of fluid flow over the tubes. Fig. 2 shows an arrangement in which the cross sectional shape of the tubes in one vertical row differs from the cross sectional shape of the tubes in neighbouring rows. All the tubes may however be identical in cross-section, Fig. 1 (not shown). Transverse fin plates, which may be corrugated, may be provided on the tubes. Each fin plate may embrace a plurality of tubes. Alternatively, the tube wall may have transverse ribs formed thereon. Specification 729,113 is referred to.
Patent GB-114049-A (GB)
Title: Improvements in Self-propelled Vehicles.
Inventor: GILLETT CHARLES WARREN
IPC: B60K17/04
Filed: 1917-03-29
Abstract: 114,049. Gillet, C. W. March 29, 1917. Transmission gearing of invariable ratio. - In converting touring to commercial vehicles, the touring road-wheel is removed from each rear wheel axle 13 and is replaced by a pinion 15, stationary bearing mountings 10, eccentric to the axles and integral with girders 11, being then bolted to the permanent axle housings 13<1>, the girders 11 being secured together and to springs on the body. Heavy wheels 2 supported on roller bearings 6, 9, 7 are then placed in position and carry toothed rings 19 driven by the pinions 15, caps 22 retaining lubricant.