baber/WOPTO huggingface dataset:
Patent GB-902839-A (GB)
Title: Pressure energized seal ring
IPC: F16J15/46
Filed: 1959-10-20
Abstract: 902,839. Valves. OIL CENTER TOOL CO. Oct. 20, 1959 [June 3, 1959], No. 35480/59. Class 135. [Also in Group XXVI] A valve assembly comprises a rotatable plug 19 in a frusto-conical body 14 which is locked in a correspondingly-shaped bore in a housing 13 by a nut 16 and sealed with such housing adjacent registering ports 22, 23 in the two ports by sealing rings 24, 30 (Group XXVI). A key 18 provides for the correct alignment of the ports 22, 23 in the body and housing, and the plug 19 is retained in its bore by a screwed end cap 20. As shown in Fig. 1, two identical valve assemblies are mounted in a common housing.
Patent GB-852022-A (GB)
Title: Improvements in methods of and apparatus for the production of glass or the like rod, filament, or tube
Inventor: HANN DOUGLAS GRAEME
IPC: C03B15/14
Filed: 1955-12-10
Abstract: 852,022. Glass manufacture. BRITISH HEAT RESISTING GLASS CO. Ltd. Dec. 10. 1956 [Dec. 10, 1955], No. 35536/55. Class 56. In order to avoid the formation of a twist in glass tube, rod, or filament when produced in apparatus imparting a rotation to the glass in advance of the drawing station, as described, for example in Specification 675,700, a rotation at the same speed and in the same direction is imparted at the drawing station by applying the drawing force helically with respect to the tube &c. This is effected by so mounting the opposed drawing rollers that the axis of rotation of one roller may, to an adjustable extent, be downwardly inclined whilst the axis of the other roller is correspondingly upwardly inclined, as a result of which the planes of rotation of the rollers are displaced from the vertical as shown at F 1 , F 2 , Fig. 5. The horizontal components of the peripheral movements of the rollers impart a rotation to the glass tube 92 which is increased as the tilting of the roller axes is increased. Each roller 12 is carried on a spring-pressed pivoted arm 13 as described in Specification 852,021. and is driven through a cardan shaft 66, each shaft 22 being journalled in a self-aligning bearing 24 which allows the shaft to be inclined within a sleeve 18 projecting from a guide member 17 secured to arm 13. The tilting of the shaft 22 is effected by adjusting a bearing block 40 in the guide 17 by a bell crank 58, 59 and a nut and screw means 53, 56 which is operated by a hand wheel through universal joints and an extensible shaft 62. The tilt-adjusting means on both arms may be interconnected for operation by one handwheel. The block 40 houses a self-aligning bearing 47 and is coupled to the cardan shaft 66 by a universal joint 67. More than two rollers 12 may be arranged around the tube.
Patent GB-1438446-A (GB)
Title: Process for hydrogenatijng aromatic hydrocarbons on sulphur resistant catalysts
IPC: C10G45/52
Filed: 1974-08-13
Abstract: 1438446 Hydrogenating aromatic hydrocarbons; purifying oils and waxes INSTITUT FRANCAIS DU PETROLE 13 Aug 1974 [16 Aug 1973] 35609/74 Headings C5E and C5W Aromatic hydrocarbons are hydrogenated using a catalyst comprising a Group VIII noble metal, alumina and halogen which has been prepared by impregnating a previously calcined alumina carrier with a Group VIII noble metal compound and a reducing agent of the formula AlX y R 3-y  where y is 1, 3/2, or 2, X is halogen and R is monovalent hydrocarbyl under anhydrous conditions. The aromatic hydrocarbon may be benzene and may be used as such or may be present as impurity in hydrocarbon fractions, such as white oils or kerosenes, or paraffin waxes which may also contain 300-3000 p.p.m. sulphur. Preferred Group VIII metals are Pt and Ir.
Patent GB-816883-A (GB)
Title: Improvements in or relating to electromagnetic circuit arrangements
IPC: H01F38/10
Filed: 1956-11-21
Abstract: 816,883. Supply systems for space discharge lamps, transformers and inductors. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1956 [Nov. 24, 1955], No. 35611/56. Classes 38 (2) and 38 (4). Two chokes have a common magnetic core comprising a part 13 not bearing a winding and two parts 1, 2 bearing choke windings 3, 6 and having air gaps 11, 15; 21, 25. Additional windings may be connected to the windings 3, 6 and these windings may be tapped. This construction is an alternative to the double choke construction of Specification 816,079 and is used in the circuits disclosed in that Specification.
Patent GB-1435487-A (GB)
Title: Purging process
IPC: B08B9/08
Filed: 1972-07-31
Abstract: 1435487 Cleaning tanks BOC INTERNATIONAL Ltd 18 July 1973 [31 July 1972] 35617/72 Heading A4F [Also in Division F2]  Inflammable or explosive residues, e.g. hydrocarbons or organic solvents, are purged from a pipe-line, tank or other vessel by a steam/gas mixture, the gas being chemically unreactive towards the inflammable residues, e.g. nitrogen, the steam content being 5-50% by volume of the mixture and the temperature within the pipe-line &c. being maintained at at least 50‹C during passage of the mixture, such passage being preceded by passage of the gas alone. The steam is preferably dry. The mix is introduced at above atmospheric pressure. The steam exhausting from the pipe-line &c. may be analyzed to check the progress of the purging.
Patent GB-655544-A (GB)
Title: Improvements in or relating to television receivers
IPC: H04N5/74
Filed: 1946-12-02
Abstract: 655,544. Optical - projection apparatus. PHILIPS LAMPS, Ltd. Dec. 2, 1946, No. 35651. Convention date, Nov. 21, 1945. [Class 97 (i)] [Also in Groups XL (a) and XL (b)] In a television receiver of the projection type in which a cathode-ray tube has a substantially spherical luminescent screen which is to be located in approximate coincidence with the spherical object plane of an optical reflecting system including a concave mirror, the cathode-ray tube is mounted so that it is capable of axial adjustment relative to the optical system and two independent adjusting devices are provided for displacing the tube relative to the mirror in two directions approximately normal to one another and to the axis of the tube. In the arrangement described the displacements normal to the axis of the tube are applied to the tube itself, but they can be applied to the concave mirror. The tube 9 is mounted on a plate 7 yieldingly retained against the lid 5 of a cabinet 1 by spring-biassed brackets 23 described in detail in connection with Fig. 4 (not shown). Adjusting members 31, 33 carry pins 51, 53 engaging arcuate slots 55, 57 in the member 7 and a pin 43 carried by an adjusting member 35 engages a radial slot 59. The member 35, Fig. 5, has a threaded end engaging a bracket 37 carrying a pin 39 engaging a longitudinal slot in the lid 5 and with its head 43 engaging the radial slot 59, Fig. 3. Operation of the member 31 effects radial movement of the plate 7 and member 33 effects rotation of the plate about the pin 43 which is equivalent to a radial displacement of the centre of the plate 7 in combination with rotation about its centre, the latter motion being balanced or compensated by the rotation derived from a tangential motion effected by operation of the member 35. The adjustments may be made by independent movements in two directions at right angles between a tube supporting plate and a guide plate which are spherically curved, Fig. 1 (not shown). Specification 596,432 is referred to.
Patent GB-1191538-A (GB)
Title: Process for the preparation of Acrylic Fibres with Non-Circular Cross-Sections
IPC: D01F6/18
Filed: 1968-07-26
Abstract: 1,191,538. Polyacrylonitrile filaments of non- circular cross-section. TOYO RAYON K.K. 26 July, 1968 [31 July, 1967; 22 Sept., 1967; 8 Dec., 1967], No. 35896/68. Heading B5B. A process for the preparation of acrylic fibers with non-circular cross-sections comprises spinning an organic solvent solution of a polymer containing at least 85 mol per cent of acrylonitrile, at an extrusion rate of no higher than 10 metres per minute, through non-circular orifices of the desired configuration having a shape factor of not less than 16, the shape factor being defined as into a spinning bath which consists of an aqueous solution of an organic solvent at a concentration of 30-60% by weight and is maintained at a temperature not higher than 35‹ C., with a jet stretch of not less than 0À9. The upper limit of the shape factor is not critical, but the preferred value is 30 or less, especially 25 or less. The shape factor ranges such as to include equilateral triangles, regular squares, and certain rectangles, and the term fibres of non-circular cross-section is intended to cover fibres having normally polygonal crosssections. Preferably, the maximum jet stretch is of the order of 1À5, the optimum range being 1À0 to 1À2. The spinneret employed is preferably provided with orifices of which the perpendicular portion is at least 0À08 mm. in length. Fig. 4 shows a suitable spinneret orifice. The organic solvent in the spinning solution and the spining bath may consist substantially of dimethyl - sulphoxide, but other specified organic solvents include dimethylacetamide and dimethylformamide. In a preferred embodiment, the spinning solution is obtained by polymerization of acrylonitrile alone or of at least 85 mol per cent of acrylonitile and at least one other copolymerizable monomer, in an organic solvent consisting substantially of dimethylsulphoxide, in the presence of azobis-dimethyl-valeronitrile catalyst. Suitable copolymerizable monomers are listed. Alternatively, the spinning solution may be a liquid mixture of a dimethylsulphoxide solution of (A) a polymer containing at least 85 mol per cent of acrylonitrile and having an intrinsic viscosity ranging from 1À0-1À4, with another dimethylsulphoxide solution of (B) a polymer containing at least 85 mol per cent of acrylonitrile and having an intrinsic viscosity ranging from 1À6-2À0, the mixing ratio of the polymers (A) to (B) in the liquid mixture being 95 : 5 to 70 : 30, in terms of per cent by weight. By the method of the invention, fibers of polygonal cross-section in which no side is concave or depressed, i.e. a cross-section of a convex-side polygon, can be easily obtained. Orifices of triangular cross-section are advantageously used. Examples 1 to 3 and 5 to 10 relate to the production of triangular filaments, and example 4 to the production of rectangular filaments. In Examples 6 to 10, the as-spun filaments are drawn to 6 times in glycerine at 120‹ C., washed with water, and dried at 120‹ to 150‹ C., and may be relaxed to induce crimp.
Patent GB-1522418-A (GB)
Title: Semisolid polymerizable compositions method of preparing the same and thermoset products thereof
IPC: C08K3/34
Filed: 1976-09-01
Abstract: 1522418 Unsaturated polyester polymerizable composition H H ROBERTSON CO 1 Sept 1976 36117/76 Heading C3R A semisolid polymerizable composition comprises the unpolymerized reaction product of 1 part by weight of polyester resin syrup, i.e. a mixture of unsaturated polyester resin and ethylenically unsaturated monomer, 0À1-2 parts by weight aqueous sodium silicate and 0À1-2 parts by weight calcium sulphate hemihydrate, the amount of said calcium sulphate hemihydrate being sufficient to combine with at least 85% by weight of the water which is contained in the other ingredients of the composition. Exemplified polyester resin syrups are formed from a mixture of styrene and an unsaturated polyester of phthalic anhydride, maleic anhydride and propylene glycol.
Patent GB-1023885-A (GB)
Title: Improvements in or relating to magnetic recording devices
IPC: G11B5/11
Filed: 1963-09-13
Abstract: 1,023,885. Magnetic tape recording heads. W. YOUNG. Dec. 9, 1964 [Sept. 13, 1963], No. 36137/63. Heading G5R. To prevent recording clicks due to starting up motors &c. in the tape feeding means, the recording head 1 has a pivoted guard member 9 covering the gap which holds the tape away from it. Since the pressure pad (not shown) holds the tape against the guard, starting the tape feed retracts the guard 9 and normal recording proceeds.  In a modification (not detailed) the guard plate may be flat and sliding in guides. For a clickless stop, the guard 9 may be moved back manually into operative position before stopping the tape-feed.
Patent GB-448934-A (GB)
Title: Improvements in and relating to tips for cigarettes and the like
IPC: A24C5/56
Filed: 1934-12-17
Abstract: 448,934. Cigarettes; cigars; cigarette holders. MENDHAM, C. C., 26A, Elmbourne Road, Tooting Bec, London. Dec. 17, 1934, No. 36140. [Class 130] A tip c for cigarettes, cigars, and the like or for cigarette holders is formed from a strip of papery layer produced by cleavage of the bark of the white birch (B. papyrifera of Canada) or its western counterpart (B. papyrifera occidentalis) which is secured by an adhesive. The natural striations and lenticels of the bark may be disposed circumferentially or longitudinally of the cigarette &c. The strips may be joined to form a ribbon, or secured by adhesive to a paper ribbon, which may be used in a cigarette tipping machine, and the ribbon may be perforated at intervals. For cigars, the strip is cut to a shape depending on the shape of the cigar end. For cigarette holders, Fig. 11, the tip c is applied to a rolled paper cone m, which may also have a coating n of wax.
Patent GB-1519993-A (GB)
Title: Silver halide colour photographic material
IPC: G03C7/388
Filed: 1975-09-03
Abstract: 1519993 Colour photographic silver haloiodide material EASTMAN KODAK CO 3 Sept 1975 [3 Sept 1974] 36306/75 Heading G2C A photo-sensitive material comprises a support bearing a red-sensitized silver haloiodide emulsion layer containing a cyan coupler, a green-sensitized silver haloiodide emulsion layer containing a magenta coupler and a blue-sensitive silver halide emulsion layer containing a yellow coupler, the red- and green-sensitized emulsion layers being adjacent and separated by a water-permeable layer containing 0À05-2À0 g/m<SP>2</SP> colloidal silver and optionally a reducing agent to inhibit stain formation during colour development. The colloidal silver may be yellow (see Ex. 1) or yellow and grey (see Ex. 2). The colloidal silver layer provides favourable interimage effects in the greensensitized layer.
Patent GB-1287261-A (GB)
Title: Improvements in tubular envelopes of extrudable synthetic plastics material
Inventor: JONES DAVID
IPC: B29C48/10
Filed: 1968-07-30
Abstract: 1287261 Extruded tubular envelopes GENERAL INDUSTRIAL PLASTICS Ltd 17 Oct 1969 [30 July 1968] 36321/68 Heading B5B [Also in Division B8] A method of making a tubular envelope of extrudable synthetic plastics material comprises extruding the material in a plastic condition into the form of a tubular film, flattening part of the tube during the setting of the material so as to form a longitudinal crease in the wall of the tube inflating the flattened part of the tube and then flattening the inflated tube along an axial plane lying at an angle preferably less than 90 degrees, to the axial plane passing through said crease, so as to form a tubular envelope with a crease extending along the face thereof. In the preferred embodiment the whole of the tube is flattened to produce two creases. The process may be effected by the apparatus in Fig. 1, in which the tubular plastics film 11 is extruded from an extrusion die 10, flattened by pinch rolls 12 to form crease edges 20, the film is optionally cooled in a cooling bath 16 (for thermoplastic materials), then inflated by an air bubble trapped by the pinch rolls 17 and 18, the vertical planes of the axes transverse to the film of the pinch rolls 17 and 18 being at an angle, so that the former edges of the film become longitudinal creases in the final flatten film 21. The longitudinal creases are preferably not superimposed. Alternatively the pinch rolls 17 and 18 may be omitted and the film inflated by a trapped air bubble, passed back through the pinch rolls 12, the twist to form a crease in the film being imparted between the first and second pass through the nip rolls 12 for example by an operator at the start of a run. All pinch rolls may be water cooled. Air cooling may be substituted for the cooling bath 16. The film so produced which is preferably of a thermoplastic for example polyvinyl chloride or polyethylene may be cut into lengths and the envelopes so formed used in packaging, when the longitudinal creases facilitate opening of the envelopes, which when made from a thermoplastic, may after insertion of the merchandise be heat-sealed.
Patent GB-175500-A (GB)
Title: A chimney pot (or the like) which will prevent the down blast of smoke in chimneys (or the like)
IPC: F23L17/02
Filed: 1920-12-30
Abstract: 175,500. Birdsall, J. M. Dec. 30, 1920. Chimney tops.-A chimney top comprises a tube 1 to the top of which is secured a casing 3 of truncated triangular form, having triangular ports 4 in the sides. A baffle 5, having upstand. ing wings 7 in one piece with it, prevents air entering the ports 4 from interfering with the flow of smoke from the pipe 1. Specification 1259/91 is referred to.
Patent GB-1396202-A (GB)
Title: Clay pipe fitting moulding methods and apparatus
IPC: B28B21/74
Filed: 1972-08-04
Abstract: 1396202 Moulding clay pipes AIRCRAFT MECHANICS Inc 4 Aug 1972 36586/72 Heading B5A [Also in Division F2] A branched clay pipe 1 (Fig. 3) is formed in a mould 10 (Fig. 2) around cores 34, 36, the branched pipe being removable without dismantling the mould through an outlet opening common to both cores. In a first embodiment, the core 34 and an enlarged plug 42 are moved into the mould 10 by a carriage 22 running along I-beams 26 on wheels 104. When seated on the mould 10, a collar 50 is rotated to engage a pair of bevelled arms 52 with a pair of hooked arms 48 on the mould (see also Fig. 1, not reproduced). The core 36 and enlarged plug 44 are moved by a double-acting hydraulic cylinder 32 to seat against the mould 10 and the plug 42, and are locked by collar 50. Green clay 110 is forced from a feeding head 16 into the mould 10 and around the cores 34, 36, until it emerges through ports 51, 53 in the plugs 42, 44. The collars 50 are unlocked, and continued feeding of clay pushes the formed pipe branch and the cores 34, 36 through the common mould outlet opening against a powered arm 94. The clay feed is stopped, and a centrifugal cutter 76 operated to cut a desired length of clay. The core 36 is retracted (now or after unlocking the collats 50). The pipe branch is supported from below and the core 34 withdrawn by arm 94, the plug 42 and a collar 43 being held stationary by posts 64 and abutments 67 to push off the pipe branch. The pipe branch is surface finished and transferred to an oven. In a second embodiment, the mould 151 (Fig. 9) includes a permanent core 171 that mates with a retractable plug 164, and, with a second core 163 and plug 162 that slide on a support attached to the mould 151. At the start, the clay column 167 reaches the end of the permanent core 171. Plug 164 is positioned and locked to a fixed mould arm (203) by pivoting a mould arm (208) (see Fig. 4, not reproduced). Core 163 is positioned to leave a gap adjacent the core 171 for free clay feeding and plug 162 is locked by piston-and-cylinder controlled pivoted latches'(see Fig. 4a, not reproduced). When clay weeps from holes 213 in the plugs 164, 162, the clay feed is stopped and core 163 is fully extended by movement relative to plug 162. Plug 162 is unlocked and core 163 retracted fully. The plug 164 is unlocked. Clay is fed again to push the pipe branch from the mould 151 for support by blocks 212, and the clay is severed by a centrifugal cutter 173. The pipe branch is removed by a caterpillar conveyer 211. A clay web is removed from the junction of the pipe branches. Tees, 45 degrees wyes, and double wyes are formed using an extruder as described in U.S.A. Specifications 2,795,027 and 2,795,028.
Patent GB-1083994-A (GB)
Title: Annular confinement of high temperature plasmas
IPC: H05H1/12
Filed: 1964-09-07
Abstract: 1,083,994. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 7, 1964 [Oct. 1, 1963], No. 36635/64. Heading G6P. In a magnetic mirror plasma confinement device for a thermonuclear fusion process, two annular mirrors are provided, one at each end of the confinement space. The space may be shaped in the form of a disc, cone or cylinder. Fuel particles are injected as neutral atoms which are subsequently ionized by Lorenz dissociation or collision with other particles. The non-ionized particles are collected and extracted. The required shape of confinement space is generated by combining the magnetic fields of several coaxial solenoids. A conical solenoid is mounted at each end of a cylindrical solenoid and a further, re-entrant solenoid is inserted into the array at either end. The plasma stability is stated to be due to particle oscillation about a minimum magnetic energy density locus, effected by both radial and axial magnetic field convergence.
Patent GB-522815-A (GB)
Title: Process for manufacturing films and threads mainly comprising gums or mucilages
IPC: D01F9/00
Filed: 1938-12-17
Abstract: 522,815. Artificial films and threads. PINEL, A. Dec. 17, 1938, No. 36806. Convention date, Dec. 22, 1937. [Class 2 (ii)] Films or threads are formed from vegetable gum or mucilage to which has been added one or more salts of lead, copper, or antimony, and are then hardened and rendered insoluble by passing them through dilute caustic soda or ammonia whereby the metal salts are converted into oxides. Alternatively, the preformed films or threads may be passed successively through a solution of a salt as above and then through caustic soda lye, or they may be passed through a solution already containing both the metallic salt and the alkali, as cuprammonium or a solution of caustic soda and tartar emetic. Specified gums or mucilages are those from tragacanth, carob seed, linseed, koniaku, apple pulp, fucus and lichens. In an example, a two per cent. gum solution is mixed with ammoniacal copper sulphate prepared by adding ammonia to copper sulphate up to the point when the initial cloudiness has just disappeared. Film obtained by drying this mixture on a support is finally passed through dilute caustic soda to complete the hardening process.