baber/WOPTO huggingface dataset:
Patent GB-1046694-A (GB)
Title: Resilient device
IPC: F16F9/06
Filed: 1964-03-12
Abstract: 1,046,694. Hydro - pneumatic springs. GREER HYDRAULICS Inc. March 12, 1964 [April 11, 1963], No. 10547/64. Heading F2S. A hydropneumatic spring device 10 comprising a casing 11 having closed ends, and a pair of pistons 14, 27 slidably and sealingly mounted in the casing, one of the pistons 14 defining a gas chamber 51 with respect to one of the closed ends of the casing, the space between the two pistons defining a liquid chamber 57 and the other piston 27 defining an additional chamber with respect to the other closed end of the casing when the piston 27 moves away therefrom. A piston rod 33 is connected to the piston 27 and means are provided to charge the gas and liquid chambers. The liquid and gas chambers are each provided with an inlet port to which a pressure line is connected and a valve is associated with each line, the valve having a pressure inlet port and a discharge port. In the construction shown the flow of liquid to the chamber 57 is controlled by a three-way selector valve 63 which either closes or opens the line 61 to a pressure source or connects the line to a reservoir through a flow restrictor 63<SP>1</SP>. The line 61 is also provided with a pressure gauge 62. The pneumatic system is similarly controlled and metered (Fig. 2, not shown). The piston 14 is formed with a bore 25 which connects the hydraulic chamber 57 with an annular groove 24 in the outer periphery of the piston. The liquid in the groove 24 lubricates the piston seals 23. Four of these resilient devices 10 may support a platform (Fig. 2, not shown).
Patent GB-921671-A (GB)
Title: Improvements in lids for containers
IPC: A47J47/12
Filed: 1961-03-23
Abstract: 921,671. Bread boards. M. SMITH. May 16, 1961 [March 23, 1961], No. 10610/61. Class 28 (2). [Also in Group XVII] A combined bread bin and bread board as shown in Fig. 1 has a removable unitary lid adapted to fit in a recess extending entirely around the periphery of the rim of the bin and provided on the underside with a unitary surface to form a cutting board.
Patent GB-1521869-A (GB)
Title: Exposure device for the manufacture of display screens of colour television display tubes and display tube manufactured by means of such a device
IPC: H01J9/227
Filed: 1977-03-14
Abstract: 1521869 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 March 1977 [17 March 1976] 10616/77 Heading H1D An optical filter incorporated in a lighthouse device for forming the phosphor screens of colour television tubes is constituted by discrete opaque regions in the form of a large number of parallel lines the width of which vary along their length to give the desired distribution of transmission. The lighthouse preferably employs an elongate light source orthogonally disposed with respect to the longitudinal direction of the opaque regions.
Patent GB-406498-A (GB)
Title: Improvements in the manufacture of gilled metal tubes particularly for heat exchange apparatus
IPC: B21C37/24
Filed: 1933-04-10
Abstract: 406,498. Gilled tubes for heat exchangers. MANUFACTURE GENERALE METALLURGIQUE SOC. ANON., 97, Avenue Louise, Brussels. April 10, 1933, No. 10688. Convention date, April 12, 1932. [Class 64 (iii).] A method of producing gilled metal tubes consists in threading upon the tubes gills of a more resilient metal than the tubes and expanding the tubes so that upon release of the expanding force the gills grip and form constrictions in the tubes. The tubes, e.g. of annealed red copper, may be provided with gills of hardened aluminium or aluminium alloy and expanded by a split or solid mandrel c. Alternatively, a mandrel e, Fig. 3, having an expansion wedge f is employed.
Patent GB-982291-A (GB)
Title: Improvements in toilet conveniences
Inventor: BRISTOW JOHN STEPHEN
IPC: E03D7/00
Filed: 1960-03-25
Abstract: 982,291. Intercepting tanks; flushing. GLOVER WEBB & LIVERSIDGE. June 22, 1961 [March 25, 1960], No. 10689/60. Heading E1C. A toilet convenience comprises fresh water and effluent containers 12, 14 below the floor thereof with means, e.g. a hand pump 16 or compressed air, to raise fresh water from the container 12 for use therein. The containers 12, 14 are compartments in a tank 8 formed by a partition 10. A part of the floor is formed by the top of the tank 8. A screening structure forms the outside walls 18 and interior partitioning of the convenience and has adjustable levelling members 26 to support it. The convenience comprises a urinal 4, a wash basin 6 and closet 2.
Patent GB-713048-A (GB)
Title: Improvements relating to means for controlling inlet and exhaust in internal combustion engines
IPC: F02B3/00
Filed: 1952-04-28
Abstract: 713,048. Cycles; pumps. DAIMLERBENZ AKT.-GES. April 28, 1952 [April 28, 1951], No. 10707/52. Drawings to Specification. Class 7(2) To prevent exhaust blow-back in one cylinder due to the exhaust event of a neighbouring cylinder connected to the same exhaust pipe, particularly in a fourstroke diesel engine having three cylinders so connected, while achieving at the same time a large inlet-exhaust period overlap, inlet opening occurs considerably, e.g. up to 90 degrees before, and exhaust closing shortly, e.g. about 60 degrees after, top dead centre so that the end of the exhaust period for any one cylinder overlaps the exhaust period of the cylinder next in ignition order to such a slight extent only that at all times during this last overlapping at least one of the two exhaust flows is substantially throttled, fouling of the inlet valves on the pistons being avoided by causing the valves, after an initial opening movement, temporarily to dwell or partially re-close. The invention is applicable to engines charged by exhaust pressure wave suction. In an overhead valve fourstroke engine having an exhaust gas turbine driving a charging blower supplied through a carburetter and three cylinders connected to a common exhaust pipe, the pistons have flat heads and the operating cams for the inlet valves are so shaped as to ensure that the inlet valves dwell according to the invention.
Patent GB-673967-A (GB)
Title: Process for the polymerization of nuclear dichlorostyrenes
IPC: C08F12/18
Filed: 1949-04-22
Abstract: Nuclear dichlorostyrenes, or the mixed isomers, are polymerized, or copolymerized with styrene, in a heated, agitated, aqueous suspension.  The reaction mixture is first heated to a temperature below about 100 DEG  C. until the monomers are substantially but incompletely polymerized, the temperature is then raised to 110 DEG to 160 DEG  C. under superatmospheric pressure sufficient to prevent vaporization of the aqueous medium until polymerization is completed. Catalysts such as lauroyl, benzoyl and 2,4-dichlorobenzoyl peroxides, tetraphenyl tin, and mixtures thereof may be used.  Also present in the reaction mixture may be lauryl mercaptan, butyl stearate, and suspension stabilizers such as tricalcium phosphate, magnesium and calcium carbonates, and magnesium phosphate.  The polymers separate in the form of beads which may be used for compression or injection moulding.
Patent GB-1272070-A (GB)
Title: Flameproofing compositions and processes
Inventor: COLE ROBERT
IPC: C02F1/04
Filed: 1969-02-28
Abstract: 1,272,070. Proofing against fire. ALBRIGHT & WILSON Ltd. 27 Feb., 1970 [28 Feb., 1969 (2)], Nos. 10780/69 and 10781/69. Heading DIP. [Also in Divisions C3] Keratinous fibres, e.g. wool, are flameproofed by impregnation at pH 4-7 with an aqueous solution comprising a mixture or reaction product of (a) a tris(hydroxymethyl) phosphine salt (THP), (b) a bifunctional compound reactible with HCHO and having 2 H atoms attached to N or linked to C in an aromatic nucleus and/or a methylol derivative thereof and (c) a methylol or methoxymethoylol compound having a functionality of 3 or more and capable of crosslinking with THP and keratin, followed by heat curing and treatment with an oxidizing agent. The salt (a) may be the chloride, the compound (b) urea or thiourea and the compound (c) melamine or trimethylolmelamine. A pH buffer may be present, e.g. triethanolamine. H 2 O 2  may be used as oxidant, following curing at, e.g. 80-160‹C for 4-30 min. The impregnating solution may comprise a two-component pack comprising a solution of (a) and (b) and a separate solution of (c) and the pH buffer, such that the combined solution has pH 4-7.
Patent GB-383866-A (GB)
Title: Improvements in twin cylinder internal combustion engines
IPC: F02B25/12
Filed: 1932-04-15
Abstract: 383,866. Four-stroke engines. EDELSTEEN, A., 2, Skraenten, Sonderborg, Denmark. April 15, 1932, No. 10871. Convention date, Aug. 18, 1931. [Class 7 (ii).] In a twin-cylinder engine wherein the diameter and/or stroke of the leading piston c is less than that of the following piston, d, the latter has only working clearance at upper dead centre. Ignition is by the heat of compression. The Specification as open to inspection under Sect. 91 also describes an arrangement wherein there is clearance over both pistons, a sparking- plug being provided centrally between the admission and exhaust valves. This subjectmatter does not appear in the Specification as accepted.
Patent GB-971124-A (GB)
Title: Improvements in or relating to joints for pipes as used for sewers, drains or conduits
Inventor: BOOTH JOHN FREDERICK
IPC: F16L21/00
Filed: 1962-03-22
Abstract: 971,124. Jointing pipe lengths. HEPWORTH IRON CO. Ltd. March 20, 1963 [March 22, 1962; Aug. 1, 1962], Nos. 10942/62 and 29514/62. Heading F2G. A pipe length 1 of, e.g. fired pipe clay, comprises a first spigoted end 2 provided with a peripheral rib 3 or a recess 9 adapted to seat a sealing ring 8 and a second spigoted end 4 having secured thereon a sleeve 5 of a flexible, resilient, synthetic plastic material. A portion 6 of the sleeve protrudes beyond the end of the pipe, the internal diameter of the portion being such that it affords a slight clearance with respect to the first spigoted end of a similar pipe length which is intended to be inserted therein. The sleeve may consist of polyethylene, polypropylene, P. V.C., polycarbonate, a reinforced polyester resin, polyacetal or acrylonitrile butadiene styrene. Methods for securing the sleeve to the pipe length comprise the use of an adhesive or mastic filler, moulding the sleeve about the pipe length and shrinking the sleeve on to the pipe after first heating the sleeve to expand it or mechanically expanding the sleeve and then heating it while positioned about the pipe end. Only that portion of the sleeve about the pipe end may be heated, the heating being effected by a gas blower or hot water, but if the whole sleeve is heated than the protruding portion of the sleeve is supported upon a mandrel. In the construction of Fig. 6 (not shown), a sealing ring is provided in a groove of the second spigoted end of the pipe and co-operates with the inner surface of the sleeve. The recess may be frusto-conical in cross-section (Figs. 7, 8, not shown) or comprise a reduced diameter portion at the first spigoted end of the pipe length (Figs. 9, 10, not shown). In a modification (Fig. 12, not shown) the annular recess is filled with a hard, or slightly resilient synthetic plastic material to form the peripheral rib. The recess may be machined or formed in the pipe length before or after firing. If the pipe lengths are fired with their longitudinal axes vertical and with one end supported on a surface, the end will, after firing, have a larger diameter than the other. The sleeve is applied to the larger diameter end. The pipe end may also be reduced in diameter by machining before or after firing.
Patent GB-582558-A (GB)
Title: Improvements in and relating to electric contacts
IPC: C22C5/04
Filed: 1944-06-08
Abstract: Electrical contacts are made of an alloy composed of platinum and up to 2 per cent. of beryllium.  Preferably the beryllium is present in the proportions 0.025-2 per cent.  A A specific alloy contains 0.15 per cent. of beryllium.  Up to 5 per cent. in total of a metal of the platinum group, namely palladium, osmium, ruthenium or rhodium, nickel or cobalt, tungsten or molybdenum or a high-conductivity metal of the first group of the periodic system, namely copper, silver or gold, may also be present in the alloy.  Specification 535,688, [Group IV], is referred to.
Patent GB-1452206-A (GB)
Title: Brushes
IPC: A46D3/00
Filed: 1974-03-12
Abstract: 1452206 Moulding plastic substances LENGARMAC Ltd 23 May 1975 [12 March 1974] 11023/74 Heading B5A [Also in Division A4] A brush comprises a brittle plastics sheath extruded on to a bundle of parallel extruded synthetic filaments 2 which project from one end of the sheath to provide the brush head, the sheath being provided with at least one ring of depressions 6 providing a line of weakness along which the sheath can be readily fractured to allow a fresh brush head to be exposed. During manufacture of the brush the depressions are made by passing a continuously extruded sheathed bundle of filaments through a ring of projections or teeth while the sheath is still soft. Reference has been directed by the Comptroller to Specification 1,326,542.
Patent GB-199870-A (GB)
Title: Manufacture of therapeutically active acridine derivatives
IPC: C07D219/10
Filed: 1922-04-19
Abstract: The methods described in the parent Specification for the preparation of acridine derivatives substituted in the 9-position by the amino group or the residue of a primary or secondary amine are supplemented by the following methods.  A 9-halogen acridine or a 9-alkyloxy-, 9-aryloxy-, or 9-aralkyloxy-acridine is allowed to react with a salt of ammonia or an aliphatic amine, or with hydroxylamine or an acid amide; in the latter case the product may be saponified if necessary; the same result is obtained by interaction of a 9 : 9-OR : OR1-9 : 10-dihydroacridine (R=aryl, R1=aryl or alkyl) and ammonia or an aliphatic amine or salts thereof, or with an acid amide.  In examples the preparation of the following compounds is described, phenol or cresol being used in most cases as reaction solvent:-(1) 2-ethoxy-9-aminoacridine from 2 : 9-ethoxychloracridine or 2 : 9-diethoxyacridine or 2 : 9-ethoxy-phenoxyacridine and ammonium oxalate, acetate, carbonate, or sulphite, or urea; (2) 2 : 9-ethoxyacetamino-acridine from 2 : 9-ethoxy chloracridine and acetamide; saponification with dilute sulphuric acid yields the free amine; (3) 3 : 9-diaminoacridine from 3 : 9-aminochloracridine and urea or hydroxylamine hydrochloride; (4) 3 : 9-diamino-7-ethoxyacridine from 3 : 7 : 9-aminoethoxychloroacridine and ammonium chloride or sulphate, or from 3-amino-7 : 9-diethoxyacridine and urea; or from 3-amino-7-ethoxy-9 : 9-diphenoxy-9 : 10-dihydroacridine (referred to as "diphenoxyacridine derivative") and ammonia in alcohol or phenol, or ammonium sulphite or carbonate, or urea; (5) 3-amino-9-ethylamino-7-ethoxyacridine from 3 : 7 : 9-aminoethoxychloroacridine or the diphenoxyacridine derivative and ethylamine hydrochloride; (6) 3-amino-7-ethoxy-9-ethanolaminoacridine from the diphenoxyacridine derivative and ethanolamine.  9 : 9 : OR : OR1 - 9 : 10 - Dihydroacridines (R=aryl, R1=aryl or alkyl) are obtained by the action of phenols, or by the consecutive action of alcoholates and phenols, on 9-halogenacridines; the 3 : 7 - aminoethoxy - 9 : 9-diphenoxy-9 : 10-dihydroacridine is described. 3-Amino-9-chloroacridine and 3-amino-7-ethoxy-9-chloroacridine are prepared by reducing the corresponding nitro compounds, for instance, by means of stannous chloride or ferrous sulphate.
Patent GB-1183225-A (GB)
Title: Improvements in or relating to the Treatment of Slurries
IPC: C02F11/12
Filed: 1967-03-09
Abstract: 1,183,225. Flocculating slurries. SIMONACCO Ltd. 9 March, 1967 [24 March, 1966], No. 11036/67. Heading C1C. Solid suspensions are dewatered by adding to the suspension containing not more than 20% by weight of solid an amphoteric polyelectrolyte of M.W. not less than 100,000 and side chain functional groups of molar cohesive increment not less than 5 links calories/mole, thickening the suspension, adjusting the pH to not less than 8 and dewatering the sludge. A granular thickening aid is added prior to the dewatering step.
Patent GB-406501-A (GB)
Title: Improvements in or relating to float chambers, more particularly for carburettors for internal combustion engines
IPC: F02M5/02
Filed: 1933-04-13
Abstract: 406,501. Carburetters. SOC. DU CARBURATEUR STRATOS, (formerly SOC. DU CARBURATEUR BLERIOT), 34, Avenue de l'OpÚra, Paris. April 13, 1933, No. 11083. Convention date, Jan. 23. [Class 7 (iii).] In a float chamber, particularly for the carburetter of an internal-combustion engine, the fuel feed is governed by a movable device subject to the differential action of at least two floats or of one or more floats and one or more pendulum weights so as to eliminate the influence of position upon the regulation of the feed. A shaft 1 mounted radially in bearings 3 in a spherical float chamber 2a carries a collar 5 through which passes a shaft 4 at right angles to the shaft 1. At one end, this shaft 4 carries a pendulum weight 6 and at the other is formed with a screw thread 7 engaged by a nut 8 which supports a float 9. The pendulum weight 6 ensures that the float will rest operatively on the surface of the liquid, the rise or fall of which rotates the nut 8 on the thread 7, the displacement operating the needle valve 12. In a modification, a second float secured to the shaft 4, replaces the weight 6. Fuel is drawn off through the bore 14 of the shaft 1. Air passes into the chamber from the carburetter 29 through one or more tubes 32, Fig. 5, formed as two great circles, perpendicular to one another, about the chamber so that some portion thereof is always above the surface of the liquid.
Patent GB-513538-A (GB)
Title: Improvements relating to apparatus for drying paper, cloth and other textiles
IPC: D21F5/02
Filed: 1938-04-11
Abstract: 513,538. Drying paper or fabric in long lengths. ECCLES, W., JENNINGS, F., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. April 11, 1938, No. 11107. [Class 34 (i)] In the drying of paper, fabric &c. 2, by passing it over drums 3, preferably having reticulated surfaces, in a drying chamber (not shown) the drying chamber is divided into stages, such as six, each containing a number of the drums and the drying air entering at 7 at the discharge end of the chamber is re-heated by heaters 8 to 13 before entering each stage of the drying chamber to substantially the same temperature throughout its passage therethrough. Vanes mounted within the drums cause the air to contact with their surfaces. In an example of the air temperatures, air enters at 7 at about 65‹F. and is heated by heater 8 to about 120‹F., and subsequently by the remaining heaters to the same temperature. The temperature of the air drops in each stage to about 100‹F. and is finally discharged at this temperature nearly saturated.
Patent GB-816265-A (GB)
Title: Neck forming device for making acoustic diaphragms
Inventor: KYLE COLIN
IPC: G10K13/00
Filed: 1957-04-05
Abstract: 816,265. Moulding acoustic diaphragms. HAWLEY PRODUCTS CO. April 5, 1957, No. 11137/57. Class 87(2). An acoustic diaphragm made from accreted fibres or blanks of paper is formed with a neck by placing the diaphragm on a perforated male die 2 and moving a shaping member 7 downwards until the opening 41, Fig. 5 in the die ring 35 contacts the diaphragm. If the die is not exactly centred with respect to the diaphragm, it centres itself automatically, as the die is free to move laterally by means of ball bearings 34. After the die has centred itself, continued movement of the die causes the neck 45 to be shaped. The diaphragm may be held in place by applying vacuum to the perforations 49 in the die 2. The formed diaphragm may be removed by supplying air through the perforations 49. The diaphragm may be heated by a gas oven 57 which is shown in a raised position in Fig. 1 but is normally lowered to rest on the frame 11 carrying the die. The die may have a counterweight 55 or the cord 52 may be attached to a pneumatic piston. Specification 719,992 is referred to.
Patent GB-1504568-A (GB)
Title: Structural bearing
IPC: E01D19/04
Filed: 1977-03-16
Abstract: 1504568 Bearings GLACIER METAL CO Ltd 16 March 1977 11161/77 Addition to 1436189 Heading F2A In a structural bearing, e.g. a bridge bearing, comprising a part-spherical bearing surface 11 (e.g. of aluminium) co-operating with a correspondingly shaped bearing surface 13 (e.g. of steel) plastics bearing layers 16 and 23 are provided on surfaces 11 and 13 respectively, the two layers being made of different plastics material and the edge of layer 16 being engaged in a groove 14 formed around the edges of surface 11. Clamps 19, 20 hold the assembly together until it is used. Bearing layers of P.T.F.E., polyacetal, polyphenylene sulphide and polyoxymethylene are disclosed. A further groove 24 may engage the edge of the other bearing layer 23.
Patent GB-233346-A (GB)
Title: Improvements in or relating to directive aerials
IPC: H01Q21/06
Filed: 1925-04-29
Abstract: 233,346. Levy, L. April 29, 1924, [Convention date]. Aerials and like radiating conductors; directive signalling. -A horizontal aerial is adapted to emit high-frequency radiation having a horizontal electric vector and concentrated into a pencil which is inclined to the horizon and lies in a plane which is normal to the aerial. Radiation so polarized is reflected from the Heaviside layer with minimum energy loss, so that " fading " is avoided, and atmospherics are eliminated from the receiving apparatus because their electric vector is vertical. The conductors are arranged in two groups in a horizontal plane and connected to opposite poles of the generator at their inner ends. In the embodiment shown in Fig. 3, the leads 9, 10 from the oscillation generator 11 neutralise one another's radiative effects, so that radiation takes place entirely from the horizontal meshwork shown, the parts 2, 3 of which are separated by chains of insulators. The height of the aerial should lie between #/8 and 5# /8 for a wave length #. Stationary waves are formed in the meshwork in two dimensions, the length from 5 to 7 being equal to half a wave length while the length from 5 to 5<1> is equal to an integral number of quarter wave-lengths. In a modification (not shown) the meshworks 2, 3, are each replaced by three parallel wires of length #/4, the lengths of the leads 9, 10, being #/2. A reflector may be provided comprising a wire placed on the ground and adapted to give an electric image of the currents in the aerial; or plane vertical reflectors may be arranged adjacent to the aerial. The receiving aerial may be a parallel horizontal aerial, elevated or at ground level, but owing to the inclination of the magnetic field a. vertical aerial or a horizontal aerial at right-angles to the former may be employed. Or the receiving aerial may be a horizontal frame aerial, or a vertical frame aerial parallel to the transmitting aerial. The Specification refers to a known arrangement, in which a vertical transmitting aerial is several wave-lengths long. The leads from aerial to earth may contain impedances, or may comprise interrupted lengths of conductor overlapping or placed end to end.
Patent GB-650626-A (GB)
Title: Gas turbine assemblies
IPC: F02C6/20
Filed: 1948-04-23
Abstract: 650,626. Pneumatic power transmitters. COANDA, H. April 23, 1948, No. 11231. Convention, date, May 22, 1947. Drawings to Specification. [Class 8(ii)] [Also in Group XXVI] A gas turbine shaft drives a centrifugal air-compressor and the discharge from the impeller passes radially outwards through a ring of turbine blades which surrounds it. The turbine rotor is mounted on a useful power shaft.