baber/WOPTO huggingface dataset:
Patent GB-744984-A (GB)
Title: Improvements in or relating to the manufacture of blade elements
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D5/18
Filed: 1952-10-29
Abstract: 744,984. Making turbine and compressor blades. ROLLS-ROYCE, Ltd. Nov. 13, 1953 [Oct. 29, 1952], No. 27246/52. Class 83 (2). [Also in Group XXVI] A method of making a blade element, particularly for axial flow compressors and turbines, having a plurality of longitudinal passageways, comprises producing a blade blank with a chordwise dimension less than that of the finished blade, having leading and trailing edge profiles 5, 6, Fig. 1, conforming substantially with those of the finished blade and having pairs of longitudinal swellings 1a, 1b each pair being at a chordwise location corresponding to the chordwise position of one of the passageways in the finished blade, drilling the blank longi. tudinally between each pair of swellings to provide passageways 1, 2, 3 separated by webs 4 and forging or pressing the blank to the desired aerofoil section, Fig. 2, without substantially deforming the webs or reducing the thicknesses of the walls of the passageways. The passage. ways may be interconnected at one end of the blade. The blank may be formed by forging. A filler of aluminium or copper may be inserted in thedrillings before the final forging or pressing operation which may be performed hot or cold. If this operation is done at elevated temperature at which the filler is liquefied, the ends of the drillings are sealed by closure plugs welded therein. The filler is subsequently removed by heating. The blade has a root portion of firtree or bulb-root type which may be wholly or partly formed in the final forging operation. At its tip the blade may have a shroud which may be integral therewith or be secured thereto by pressing or welding.
Patent GB-485526-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/005
Filed: 1937-10-07
Abstract: Mica in an electric condenser is coated with metal by applying a mixture containing a compound of the metal and a reducing agent and heating to a temperature not exceeding 250 DEG  C., the ingredients of the mixture being such that the reducing action and vaporization of the products, other than the metal, and of any remaining ingredients take place below that temperature.  Thus, silver oxide or hydroxide may be reduced by ammonium formate, hexamethylene tetramine, hydroquinone or triethanolamine with or without the addition of a liquid such as isopropyl or butyl alcohol.
Patent GB-825956-A (GB)
Title: Improvements in or relating to fitments for aerials
Inventor: TAYLOR ERIC ARTHUR
IPC: H01Q1/12
Filed: 1956-09-06
Abstract: 825,956. Moulding supports for aerials. BELLING & LEE Ltd. Aug. 30, 1957. [Sept. 6, 1956], No. 27280/56. Class 87(2). [Also in Groups XXII, XXV and XL(c)] A method of forming a support for a television aerial member 22, Fi<SP>g</SP>. 3, consists in diecasting or moulding the support 37 round the member so that the support forms a shrink fit on the member. A mould consists of a baseplate 1 carrying an angle strip 14 and screwthreaded to receive screws 6, 8 passing through upper mould halves 15. The latter are bored to receive an aluminium positive element 22 for a television or other h.f. aerial. The element is notched, roughened or has a protuberance to key it to the metal as it is poured into the cavity 28. Also positioned in the cavity is the head of a screw 30 supported by the strip 14. 'The cast part, when trimmed of flash, is secured by a wing-nut to the cross arm of an aerial. The cast material may be an electrically conductive metal, or a thermoplastic.
Patent GB-619856-A (GB)
Title: An improved method for dehydrating and purifying in a continuous operation raw phenols extracted from coal tar
IPC: C07C37/00
Filed: 1945-10-18
Abstract: <PICT:0619856/III/1> Coal tar phenols are dehydrated and freed from sulphuretted impurities by subjecting them to a continuous dehydration in a plate column working under a vacuum, e.g. at an absolute pressure of about half an atmosphere, and connected to a boiler having a temperature of 120 DEG  to 130 DEG  C.  Hydrogen peroxide or a mixture of oxygen and ammonia or a mixture of air and ammonia may be mixed with the raw phenols to decompose sulphuretted impurities in the column.  Coat tar phenols are pumped from tank 1 through a temperature exchanger 3 and conduit 5 to the top of plate column 4 which is heated by the boiler 6 and evacuated by pump 14. The dehydrated phenols are withdrawn from the boiler and then flow through the temperature exchange 3, wherein they give up their heat to fresh raw phenols, into a tank 9 from which they may be pumped into a rectifying apparatus, as described for example in Specification 619,857.  The vapours leaving the column 4 are condensed in the cooling apparatus 12.  The condensate is withdrawn through barometric leg 15.ALSO:Coal tar phenols are dehydrated and freed from sulphuretted impurities by subjecting them to a continuous dehydration in a plate column working under a vacuum, e.g. at an absolute pressure of about half an atmosphere, and connected to a boiler having a temperature of 120 DEG  to 130 DEG  C.  Hydrogen peroxide, or a mixture of oxygen and ammonia or air and ammonia may be mixed with the phenols to decompose sulphuretted impurities in the dehydration column.  Specification 619,857, [Group III], is referred to.
Patent GB-792413-A (GB)
Title: Polyhydrophenanthrene compounds
IPC: C07D317/72
Filed: 1954-08-24
Abstract: The invention comprises compounds of the formula <FORM:0792413/IV (b)/1> in which the 7-position is occupied either by a bivalent group convertible to keto by acid hydrolysis or by a pair of univalent groups together convertible to a single keto group by acid hydrolysis, compounds of the formula <FORM:0792413/IV (b)/2> in which the 7-position is occupied by a univalent group which is convertible to keto by acid hydrolysis and a compound of the formula <FORM:0792413/IV (b)/3> Compounds of the first and second formul  are obtained by oxidation of a 2,4b-dimethyl-2-methallyl - 1(b  - hydroxyethyl) - 1,2,3,4,4a,4b,5,-6,7,8,10,10a - dodecahydrophenanthrene having a hydroxy or keto group in the 4-position and appropriately substituted in the 7-position.  The oxidation can be effected with a complex of chromium trioxide and an organic base, e.g. pyridine. The compound of the third formula above is obtained by acid hydrolysis, e.g. with perchloric acid, of the compounds of the first two formul .  In the 7-position the substituents may be those referred to in Specification 792,410.  In an example, 2,4b-dimethyl-7-ethylenedioxy - 2 - methallyl - 1 - (b  - hydroxyethyl) - 4 - hydroxy - 1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydrophenanthrene is treated with a complex of chromium trioxide and pyridine and from the reaction product there are separated by chromatography 2,4b-dimethyl-7 - ethylenedioxy - 2 - methallyl - 1 - acetaldehydo - 4 - keto - 1,2,3,4,4a,4b,5,6,7,8,10,-10a-dodecahydrophenanthrene (main product) and the corresponding 1-(b -hydroxyethyl) and 1-(carboxymethyl)-compounds.  These two latter compounds on reduction with lithium aluminium hydride give the C-11 epimer of the starting material which can be re-used.  Specifications 733,808, 763,208, 777,682, 777,683, 792,411 and 792,412 also are referred to.
Patent GB-1327170-A (GB)
Title: Vehicle jacks
IPC: B66F3/08
Filed: 1972-06-12
Abstract: 1327170 Vehicle jacks AUGUST BILSTEIN 12 June 1972 [16 June 1971] 27367/72 Heading B8J A vehicle jack comprises a U-section supporting column 13 in which is mounted for rotation a threaded spindle 14. A load support member 10 is threaded on the spindle 14 and moved vertically by rotation of the spindle 14. A loadengaging member 21 is of U-shape and its free ends are provided with recesses 25 by which it is pivoted on the support member 10 on pivots 11. The pivots 11 have flattened sides 27, 28 so that the members 10, 21 can be readily disengaged, when removed from the column 13, by pivoting past the lower limiting position of the member 21 (shown in full lines). The upper limiting position of the member 21 is shown in broken outline.
Patent GB-976637-A (GB)
Title: Apparatus for processing plastic materials
IPC: B29C48/50
Filed: 1961-07-28
Abstract: 976,637. Mixing appliances. COMPAGNIE FRANCAISE THOMSON-HOUSTON. July 28, 1961 [Aug. 10, 1960], No. 27461/61. Heading B1C. In apparatus for treating plastic materials a cushion 103 thereof is submitted to wedging action between two relatively moving surfaces 100, 101 so that all parts of the material are successively brought to the free surface 103. The coefficient of friction of the material with the surface 101 must be less than that with the surface 100. The material may be treated under reduced or increased pressure whereby it may be degassed or aerated. A batch processing apparatus, Fig. 6, comprises a housing 105 having a cylindrical chamber and a prismatic rotor 106 the cross-section of which may be a rectangle, Fig. 7, or other polygon providing a suitable wedging angle on the material (see Figs. 8 and 9, not shown), with angles rounded to co-operate with the chamber wall. The passage 146 may communicate with a vacuum pump. A continuous apparatus, Fig. 10, comprises a feeding conveyer screw section 109, a processing screw section 110, and a recompressing and discharging screw section 111. The feeding screw has a device as at 115 to limit delivery so that the threads of the processing screw are filled only partially with material. The cross-section of the processing screw 118 may be a rectangle, triangle or square (see Figs. 11-13, not shown), or other suitable polygon, or a square with extensions, Fig. 15. Material is supplied at 113 and the passage 117 may be connected to a vacuum pump. In a modification the mixing member is an Archimedean spiral, Fig. 17. In other embodiments the rotor is a cylinder co-operating with scraper surfaces projecting from the stator such as a single or multi-start interval Archimedean spiral 135, 136 of opposite hand to the feeding and discharge screws, Fig. 19 (see also Fig. 18, not shown), or a truncated cone 141 co-operating with four shoes 143 inserted in the housing (see Fig. 21, not shown, and Fig. 23), and having part-conical working surfaces. The required difference in coefficients of friction may be achieved by chromium-plating the scraper surfaces ; the clearance between the surfaces is of the order of 0À1 mm. The machines may be heated or cooled electrically or by a fluid medium.
Patent GB-243513-A (GB)
Title: Improvement in appliances for use in sealing pipe joints
IPC: F16L15/04
Filed: 1924-11-17
Abstract: 243,513. Marks, E. C. R., (Smooth-On Manufacturing Co.). Nov. 17, 1924. Spigot-and-socket joints held by caulking and the like. - A spigot-and-socket or like joint is sealed by means of a divided jacket c which abuts the edge of the socket members a and is provided with spacing-lugs e at the outer edge. The jacket is formed with radial lugs c<1> and is clamped on the spigot member by screws d, which engage therein. Packing is inserted between the jacket and joint to be sealed by means of a tamping-tool p.
Patent GB-920679-A (GB)
Title: Improvements in or relating to catalytic exhaust purifiers for engines operating on gasoline
Inventor: LARSON GORDON PENDLETON
IPC: B01D53/94
Filed: 1961-07-28
Abstract: 920,679. Purifying exhaust gases. OXY-CATALYST Inc. July 28, 1961, No. 27466/61. Class 7(2) An exhaust gas catalytic purifier comprises means 3, Fig. 1 for admixing air with exhaust gases, a housing 1 containing an inlet grid 25, which is open in 8% to 17% of its total area, oxidation catalyst pellets P confined between the inlet grid and a spaced outlet grid 26, and means for discharging the exhaust gases from the outlet grid. Exhaust gases passing through pipe 2, draw in ambient air through pipe 10 from filter 11 into chamber 9. The resultant mixture passes in the direction of the arrows through the catalyst bed which is held between inlet and outlet grids 25, 26, Fig. 2, e.g. of stainless steel, mounted to permit thermal expansion. The housing 1 e.g. of stainless or aluminized steel, has thermal insulation 1a and a metal covering 1b. The geometric shape of the catalyst bed may be flat or annular in the sense of confinement between concentric cylindrical or conical entrance or exit surfaces, the radial cross-sections of which may be circular, elliptical, oval or polygonal with radial inward or outward gas flow. Catalysts in cylindrical pellet form may comprise a carrier of activated metal oxide e.g. beryllia, thoria, magnesia, zincite, zirconia or alumina impregnated with metals or metal oxides such as platinum, palladium, rutherium, rhodium, copper, silver, chromium, vanadium, manganese, iron or mixtures of copper and chromium oxides.
Patent GB-1188762-A (GB)
Title: Improvements in and relating to a Sealing Device for a Door or the like.
IPC: E06B7/22
Filed: 1968-06-10
Abstract: 1,188,762. Pressure closure members. COMMISSARIAT A L'ENERGIE ATOMIQUE. 10 June, 1968 [9 June, 1967], No. 27475/68. Heading F2P. A seal for a door or window of a liquefied gas bubble chamber consists of a U-shaped metal section 2 having raised edges 6, 7 channelled to hold sealing rings 14, 15 on the limbs 4, 5 and housing a spring if within its bight 10 for pressing the seals into contact with the door and chamber surfaces. The section 2 is of stainless steel and the spring 11 is of beryllium bronze and spaced by a packing 20 of P.T.F.E. The seals 14, 15 are of indium. The spring may be divided into sections 11a, 11b, 11c ...
Patent GB-1186475-A (GB)
Title: Fuel Cell Electrode
Inventor: SELKER MILTON LEONARD
IPC: H01M4/90
Filed: 1968-06-10
Abstract: 1,186,475. Fuel cells. CLEVITE CORP. 10 June, 1968 [22 June, 1967], No. 27478/68. Addition to 1,137,743. Heading H1B. [Also in Division C1] A fuel cell comprises an electrolyte containing member, an anode and a cathode placed on opposite sides thereof, an O 2 -containing reaction gas in contact with said cathode, a H 2 -containing reacting fluid in contact with said anode, said cathode being constituted of a coherent mass of carbon black and finely divided Mo, Mn or V in intimate association. The preferred electrolyte is KOH.
Patent GB-274883-A (GB)
Abstract: 274,883. Lederer, A. July 21. 1926, [Convention date]. Carbon pipes.-By decomposing carbon bisulphide by heating to between 1100‹-2100‹ C. carbon is obtained and is deposited on rod cores to give carbon tubes. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of carbon compounds generally as starting materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-1191483-A (GB)
Title: Fluorescent Pigment.
Inventor: VUKASOVICH MARK S
IPC: C09C1/30
Filed: 1967-06-14
Abstract: 1,191,483. Luminescent materials. SHER. WIN-WILLIAMS CO. 14 June, 1967 [17 June, 1966; 23 May, 1967], No. 27527/67. Heading C4S. A fluorescent pigment comprises silica gel particles the pores of which contain a 0À1 to 5.0% by weight solution of a fluorescent dye in an organic polymer solvent which at 25‹ C. is solid and non-volatile, the dye fluorescing in response to sunlight or artificial light having a similar spectrum including U.V. light. The pigment is prepared by dissolving the dye in a solvent containing the polymer and a volatile fraction, contacting the dye solution with silica gel particles and absorbing and concentrating the dye and polymer in pores of the particles by evaporating the volatile fraction. The term silica gel includes siliceous hydrogels, xerogels and aerogels containing up to 10% alumina or zirconia e.g. diatomaceous earths and talcs. Xanthene (rhodamine), ketone imine, acridine and naphthalimide type dyes are referred to. The polymer solvents include vinyl chloride, vinyl acetate copolymer, cellulose acetate, nitrocellulose, cellulose acetate butyrate, PVA, methyl cellulose, gum tragacanth, acrylic, alkyd and epoxy resins, polyurethanes and poly (vinyl formal). Volatile solvents include alcohols, ketones, esters, glycols, glycol esters and water. The silica gel particles may absorb before or during treatment with the dye solution, near white opaque pigment e.g. TiO 2 , fluorescent ZnS, lithopone and ZrO 2 ; optical brighteners e.g. benzoyl-aminostilbenes, benzimanazoles and amino-coumarones; U.V. absorbers e.g. benzophenones and benzotriazoles; surfactants, antioxidants, non-fluorescent and photochromic dyes. In one example a rhodamine dye is dissolved in vinyl chloride-vinyl acetate copolymer with isophorone, cellusolve acetate and cyclohexanene volatile solvents. Silica gel particles are stirred into the solution to form a slurry which is then heated to remove the volatile solvents and deposit the dye and polymer solvent. The photochromic dyes are Hg, Zn and Pd salts of diphenylthiocarbazonates and may be absorbed by the particles directly or the diphenylthiocarbazonate is first absorbed and cation introduced subsequently. The pigment forms a paint when mixed with a vehicle of acrylic polymer, naphtha, oleic, linoleic, linoleic fatty acid, alkyd resin and mineral spirits: the vehicle may include toluene and xylene. For use in silk screen printing the pigment is mixed with styrene copolymer, linseed maleic ester resin, naphtha, ethyl cellulose and mineral spirits. A moulding material is prepared by mixing the pigment with vinyl chloride, and dioctyl phthalate. The pigment may also be used in inks, crayons, chalks, textile coatings and castings; advertising, safety and decorative applications are indicated.
Patent GB-603389-A (GB)
Title: Improvements in and relating to computing gun sights
IPC: F41G3/00
Filed: 1945-10-19
Abstract: 603,389. Gun sights. SPERRY GYROSCOPE CO., Inc. Oct. 19, 1945, No. 27532. Convention date, Oct. 20, 1944. [Class 92 (ii)] The lead angle to be given to a gun with respect to the line of sight is obtained by the use of a free gyroscope 25 which moves with the member (e.g. the gun 10) which tracks the target, and means for setting the spin axis initially parallel to the target path, the directional properties of the gyroscope thereafter keeping the spin axis parallel to the target path and the resultant relative angular displacement between the axes of the gyroscope and tracking member being used to determine the lead angle. In the construction shown, the gyroscope is supported for movement in a U-member 30 about an axis defined by aligned shafts 26, 27, these shafts carrying knobs 43 by which the gyroscope can be manually moved to a position parallel to the target path. The U-member which is mounted on a rotatable shaft 31 carries also aligned shafts 37, 38, carrying arrow-shaped members 35, 36 which are so linked to the gyroscope that they are always parallel to the spin axis. The connecting link carries the front sight C. The shaft 31 is journalled in a slidable member 17 which has an index 18 moving over a scale giving target velocity. The rear sight A is fixed, and a point B is on a line through A parallel to the gun barrel, the distance AB as read on the target velocity scale being proportional to the reciprocal of the target velocity. In use, the taget is maintained on the line of sight AC after the axis of the gyroscope and the distance between A and B have been set. The Specification gives the mathematical considerations showing that the angle of lead is correctly given by this means if the target is constantly followed.
Patent GB-1537138-A (GB)
Title: Two-phase asynchronous motor
IPC: H02K17/12
Filed: 1976-07-02
Abstract: A disc-shaped cage rotor (1) is supported rotatably in the motor casing (3). At the end faces of the rotor, two stator poles (5, 6) forming field magnetic systems are located opposite one another. The windings (7) of each phase are accommodated in only one stator part and offset with respect to one another in accordance with the phase angle. The rotor poles are constructed as continuous ribs from end face to end face of the rotor (1), which are magnetically separated from one another. The adjacent stator poles (5, 6) are closed directly via the pole shoes of the opposite stator part. The motor is constructed in such a manner that only their own phase flows through the iron cores of all field magnets and there is sufficient space available for a relatively large number of field magnets of both phases, and they can be loaded for full saturation by their own phase. Thanks to the low weight and low inertia, the motor is suitable, for example, for high speed drives such as gyroscopes and centrifuges, spin tubes, dental drills. The automatic centring of the moving rotor between the field magnets can also be used as contactless dynamic support of the rotor. <IMAGE>
Patent GB-1115452-A (GB)
Title: Nuclear fuel elements
IPC: G21C3/36
Filed: 1965-06-30
Abstract: 1,115,452. Nuclear fuel elements. MINNESOTA MINING & MANUFACTURING CO. 30 June, 1965 [9 July, 1964], No. 27729/65. Heading G6C. A nuclear fuel element comprises at least one unitary sintered refractory metal sheet having an inner zone wherein particles of a fissile actinide fuel are uniformly dispersed and an outer zone free from fuel particles. The metal in powder form is mixed with an organic binder, plasticizer, wetting agent, and fuel particles, and the mixture is formed into a thin sheet; similar sheets without the fuel are attached to each face of the sheet by means of an adhesive and the whole dried and sintered in hydrogen or an inert gas or in vacuo to form an integral metal matrix. Suitable metals are stainless steel, W, Mo, Cr, Ti, Zr, V, Nb, Ta, Fe, Ni, and alloys thereof. The binder may be a high molecular weight thermosetting or thermoplastic resin or elastomer, several examples of which are given; methyl cellulose or polyvinyl alcohol may be used as a water soluble binder. The fuel may be in the form of small spheres of oxide, carbide, nitride, or metal. In examples, the fuel is UO 2  enriched in U235 and the metal is Mo, W, or Ta. Some of the coated sheets 20 may be corrugated before sintering and attached to plain sheets 21 to form a fuel element with coolant passages as shown in Fig. 4.
Patent GB-1039747-A (GB)
Title: Alloy steel
IPC: C22C38/44
Filed: 1965-06-30
Abstract: A martensitic steel comprises <TABS:1039747/C6-C7/1> the balance, apart from impurities, being iron. Impurities mentioned are Cu, Co, S, P, H, N and O. The heat treatment may comprise:-homogenizing at 1150 DEG  - 1290 DEG C. hot working and optionally cold working, and cooling to room temperatures to form martensite. If desired after the first cooling the alloy may be solution treated at 785 DEG -1040 DEG C. and again cooled to reform the martensite. In either case an ageing treatment at 425 DEG -540 DEG C.is then carried out. Complete martensitic transformation may be ensured by cooling to -75 DEG C.
Patent GB-971083-A (GB)
Title: Adjusting device for a photocomposing machine
IPC: B41B15/34
Filed: 1961-07-31
Abstract: 971,083. Photographic type-composing apparatus. TECHNIQUES ET MATERIELS GRAPHIQUES. July 31, 1961 [Sept. 14, 1960], No. 27770/61. Heading B6W. In a photo-composing machine, the reproduction ratio (camerabellows and lens focus control) is variable by rotating a shaft 1<SP>1</SP> keyed to a disc 1 and a hand wheel 7 having a handle 9. The shaft 1<SP>1</SP> is connected in a 1 : 1 ratio through a slip clutch 12 to a shaft 2<SP>1</SP> keyed to a disc 2 and hand wheel 8. When the handle 9 is released, a detent holds the shaft 1<SP>1</SP> stationary while the shaft 2<SP>1</SP> can be rotated separately. The discs 1, 2 are respectively graduated with marks representing the type body size and the line length, spaced apart proportionately to the logarithms of said size and length, whereby either (1) the disc 1 can be set to a desired body size, the disc 2 indicating the line length, or (2) the disc 2 can be set to a desired line length, and the disc 1 then set to the nearest integral body size, the disc 2 indicating the exact line length. The marks may represent points or other typographical units.