baber/WOPTO huggingface dataset:
Patent GB-1126707-A (GB)
Title: By-pass gas turbine jet propulsion engine
Inventor: HOLLIDAY JOHN BERTRAM
IPC: F02K3/11
Filed: 1966-08-24
Abstract: 1,126,707. Gas turbine by-pass type jet engines. ROLLS-ROYCE Ltd. Aug. 17, 1967 [Aug. 24, 1966], No.38037/66. Addition to 1,069,033. Headings F1J and F1L. The invention relates to a gas turbine jet propulsion engine in which a portion of the air compressed by the compressor system of the engine is arranged to by-pass the high pressure compressor, combustion equipment and high pressure turbine system of the engine, the by-pass air flow being passed to a low pressure turbine of the engine, combustion equipment being provided in the bypass air flow duct. Means are provided for rotating the combustion equipment in the by-pass duct, and control means are provided for varying the amount of fuel supplied to the combustion equipment in the by-pass duct so as to vary the effective by-pass ratio of the engine. In the embodiment shown the engine comprises LP compressor 10, HP compressor 4, combustion equipment 5, HP turbine 6, IP turbine 11 and LP turbine 12, the HP turbine being connected to drive the HP compressor through shaft 7, and the IP and LP turbines being connected together and connected through shaft 13 to drive the LP compressor. A portion of air from the LP compressor passes through the by-pass duct 3 to act on the radially outer part of the LP turbine 12, there being combustion equipment in the by-pass duct. The combustion equipment in the by-pass duct comprises a series of angularly-spaced apart combustion stabilizing gutter means 20 and associated fuel injectors 22, which assembly is rotatable about the engine axis. The rotary assembly comprises a shaft 16 which carries a hub member 17 and a series of blades 21, the blades each being formed integrally with a gutter member 20, the blades 21 being located in the air flow duct between the LP and HP compressors whereby the assembly is rotated. Fuel is supplied to an annular recess 23 within the hub member 17 and then flows through passages 27 in the blades and gutters to the injectors 22. Fuel flow to the assembly is controlled by a valve 26. The arrangement is such that no fuel is supplied to the injectors 22 until the engine has been brought to full operation, the number of injectors 22 supplied with fuel always depending upon the rotational speed of the engine.
Patent GB-1175563-A (GB)
Title: Improvements in or relating to Tocopherols
Inventor: NELAN DONALD ROYCE
IPC: C07D311/70
Filed: 1967-08-19
Abstract: 1,175,563. Resolving epimeric mixtures of α- tocopherols. EASTMAN KODAK CO. 19 Aug., 1967, No. 38311/67. Heading C2V. Epimeric mixtures of 2d-α-tocopherol and 2l-α-tocopherol, and of their esters formed from optically inactive acids and of their salts formed from bases and their acid succinate esters, are resolved by dissolving the epimeric mixture in a solvent therefor, changing the temperature of the solution to precipitate crystalline solids and separating a product enriched in one epimer relative to the other. The process may be repeated to obtain a product consisting essentially of one epimer free from the other epimer. The solution may be seeded with a crystal of the epimer the relative weight ratio of which will be increased in the precipitated crystals. The solvent may be methanol, ethanol, acetone, isooctane, hexane, isopropanol, methyl, ethyl ketone, a formate ester, dimethoxy ethane or acetonitrile. Also, 2l-α-tocopherol may be oxidized to 2l-α-tocoquinone, reduced to 2l-α-tocohydroquinone and cyclized to a mixture of 2d- and 21-tocopherols, from which the 2d epimer may be separated as above. In examples 2dl- α-tocopheryl acetate is resolved using ethanol as solvent, 2d-α-tocopherol is separated from a mixture of 2d- and 2l-α-tocopherols using methanol as solvent, and 2l-α-tocopherol is oxidized with ferric chloride, the 2l-α-tocoquinone reduced with sodium hydrosulphite and the 2l-α- tocohydroquinone reacted with zinc chloride and zinc dust to obtain a mixture of 2d-α-tocopherol and 2l-α-tocopherol which is esterified with acetic anhydride, the 2d epimer separated by repeated crystallization from ethanol and then saponified to 2d-α-tocopherol.
Patent GB-1049260-A (GB)
Title: Catalytic converter for internal combustion engine exhaust gases
IPC: F01N3/28
Filed: 1965-09-08
Abstract: 1,049,260. Treating exhaust gases. AMERICAN CYANAMID CO. Sept. 8, 1965 [Sept. 22, 1964], No. 38413/65. Heading F1B. In a catalytic exhaust purifying device in which the gases flow radially through a catalyst bed 17 contained between inner and outer perforated tubes 16, 11, the upper portion 13 of the tube 11 is unperforated to prevent direct upward flow through this portion. The end plates 23 closing the ends of the tubes 11, 16, may be yieldably supported and controlled by a thermally responsive device to open to by-pass the catalyst bed at very high temperatures. In a modification, Fig. 4 (not shown), the outer casing 10 is elliptical and the upper portion 29 of inner tube 14 is unperforated.
Patent GB-1115582-A (GB)
Title: Hot top structure
IPC: B22D7/10
Filed: 1965-09-08
Abstract: 1,115,582. Hot tops. OGLEBAY NORTON CO. 8 Sept., 1965 [23 Sept., 1964], No. 38450/65. Heading B3F. A hot top 10 for an ingot mould 11 comprises a refractory lining 17 and an insert unit 23 made up of panels (25), (26) (Fig. 2, not shown) fixed to a flexible member 27, the panels being made of a material including a cellular granular clay material and a binder. The cellular granular clay may be in the form of expanded clay having unicellular or multicellular spherical grains or bodies and may be mixed with sand. The binder may comprise a resin such as a silicone resin or an organic resin, preferably a resin binder in combination with a cereal binder. Water and kerosene may be added to the mixture during the forming of the panels. The panels are arranged on their flexible member 27 to fit into the tapered hot top and each panel has tapering sides with mating adjacent edges so that a seal is formed when assembled in place. The flexible member 27 may be corrugated cardboard, cloth, paper, fibrous material or pressure-adhesive tape. The grain size of the granular clay and sand ranges from a minimum to a maximum with the largest proportion of the mixture being of an intermediate grain size.
Patent GB-1299970-A (GB)
Title: Rubbing joint
IPC: C07F7/12
Filed: 1970-08-10
Abstract: 1299970 Tracks for hovercraft COMPAGNIE FRANCAISE DE RAFFINAGE 10 Aug 1970 [8 Aug 1969] 38483/70 Heading B7L [Also in Division B2] A rubbing joint comprises a flexible body, which may be the rubber skirt of an air-cushion supported vehicle, and a rigid surface which may be a concrete rail for guiding and sustaining the vehicle and which is coated with a composition solid at ambient temperatures and containing a paraffin wax or petroleum wax, especially a paraffin wax obtained from the de-paraffining of petroleum distillates or a wax produced from de-asphalted residues of vacuum distillation. The coating composition is applied by roller or by spraying and may also contain polyethylene, polypropylene, polybutene, polyisobutene, polystyrene, a copolymer of ethylene with vinyl - cyclohexane, vinyl acetate or an acrylate, acrylic acid-grafted polyolefin, butyl rubber, bitumen, graphite, molybdenum disulphide or phosphates.
Patent GB-1366046-A (GB)
Title: Safety device for a vehicle seat
IPC: B60R22/04
Filed: 1972-08-18
Abstract: 1366046 Vehicle safety belts RECARO GmbH & CO 18 Aug 1972 [21 Aug 1971] 38651/72 Heading A3V A vehicle seat 2, 3 is provided with a safety belt in two parts 26, 28 each having its own take-up reel 27, 29, and the free end of the parts 26, 28 carrying complementary buckle parts 23, 24 which are provided with sockets to receive the ends of curved carriers 7, 8, the carriers being drivable, by means of friction rollers 13, 14 from a motor 15 from a position behind the seat (as shown for the carrier 8) to an extended position (as shown for the carrier 7) wherein the buckle parts 23, 24 engage each other, such engagement causing reversal of the drive to the carriers thus disengaging the carriers from the buckle parts and leaving the belt 26, 28 to be drawn around or seat occupant under the action of the reels 27, 29. The rota 15 is actuated initially by a switch 18 actuated by a pressure plate in the seat and when the carriers 7, 8 have returned to their retracted positions, limit switches, as 30, cut off the supply to the motor 15. Guide surfaces 21, 22 hold the respective parts of the buckle 23, 24 in place on the carriers 7, 8 in the retracted position thereof, and a casing 20 is provided to cover mechanism behind the seat. The invention is applicable to two-point seat belts as shown or the three-point fixing belts, and the carriers are preferably of fibreglass or light metal. The reels 27, 29 are preferably such as to lock when the stress on the belts changes abruptly and to absorb such changes. In an alternative embodiment, one of the buckle parts is mounted at one side of the seat and the other part attached to a belt is carried round infant of the seat occupant by single curved telescopic arm which may be electrically or hydraulically actuated, and in a further alternative arrangement one of the buckle parts is carried by a telescopic arm which is mounted for pivotal movement to one side of the vehicle seat.
Patent GB-1235165-A (GB)
Title: Modular seal unit and seal assembly for pipes
Inventor: BARTON BRUCE G
IPC: F16J15/00
Filed: 1968-08-13
Abstract: 1,235,165. Pipe connections. THUNDERLINE CORP. 13 Aug., 1968 [14 Aug., 1967], No. 38729/68. Heading F2G. A seal unit 21 for end-to-end assembly with a plurality of similar units to provide an annular shock-absorbing seal assembly and for encircling a pipe 61 passing through an opening 62 in a wall 63 comprises a seal block of resilient compressible elastomer material, e.g. rubber, having offset ends 32, 33 through which extend bolt holes 34, 35, and pressure plates 36 and 46 each having bolt-receiving apertures 42, 43 and 52, 53. Bolts 54 extend through the bolt holes 34, 35 and apertures 42, 43 and through one aperture of an adjacent seal unit 22 when assembled therewith as a part of the seal assembly so that tightening of the bolts compresses the seal blocks of the two adjacent seal blocks to expand the thickness thereof and complete a seal. As shown, the blocks have a Z-shaped configuration and the plates 36 and 46 each consist of two elements 37, 38 and 47, 48 connected by pins 39 and 49. The shanks of the bolts adjacent the heads 55 thereof have a non-circular configuration to fit corresponding holes in the pressure plates and to prevent rotation of the bolts. In modifications, (a) the blocks have a substantially U-shaped, V-shaped or parallelogram configuration, the pressure plates being in one piece and cranked, (b) two blocks of semicircular configuration are employed, the pressure plates being of similar shape, and (c) the blocks 301, Fig. 16, of segmental form have pairs of opposite corners notched to form concave surfaces 301C and convex ends 301X.
Patent GB-1161229-A (GB)
Title: Ribonucleic Acid.
IPC: C12R1/72
Filed: 1966-08-31
Abstract: 1,161,229. Ribonucleic acid. TAKEDA CHEMICAL INDUSTRIES Ltd. 31 Aug., 1966 [2 Sept., 1965], No. 38888/66. Heading C3H. A process for preparing yeast cells containing large amounts of ribonucleic acid comprises inoculating a mutant of the genus Candida resistant to thiazine dye, oxazine dye or acridine dye on to a culture medium comprising a carbon source consisting mainly of hydrocarbons containing not less than 10% by volume of nparaffins having from 14 to 21 carbon atoms and other necessary nutrients, and incubating at 20‹ C. to 40‹ C. and at pH 4À0 to 8À0 under aerobic conditions. The mutants may occur spontaneously or may be induced. Suitable organisms are strains of Candida tropicalis and C. parapsilosis. The ribonucleic acid may be recovered as such or as oligonucleorides.
Patent GB-1026223-A (GB)
Title: A method and device for heat welding thermoplastic synthetic materials
IPC: B29C65/34
Filed: 1964-09-24
Abstract: 1,026,223. Seaming non-metallic sheet material. SIEMENS & HALSKE A.G. Sept. 24, 1964 [Sept. 27, 1963], No. 38897/64. Heading B5K. Surfaces composed of thermoplastic synthetic material are welded together by inserting between the surfaces to be united at least one strip 1 of thermoplastic synthetic material which will heat weld to the surfaces and which contains an electrical heating element 2 in the form of an electrically-insulated conductor, and applying an electric current to the element 2 whilst pressing the surfaces into contact with the strip 1 so that the surfaces and the strip 1 become welded together. The invention is applicable to the joining of polyethylene cable fittings and sheaths by means of a polyethylene strip 1. The element 2 comprises a 5 mm. diameter electrically-conductive wire 2 shaped as a planar S-coil having a convolution opening dimension axially of the coil of between 1 and 1À5 times the wire diameter. The wire 2 is electrically insulated to avoid short-circuits occurring across the convolutions thereof or, when more than one strip 1 is employed, across the convolutions of adjacent strips. This insulation must be heat resistant. Varnished copper wire is specified.
Patent GB-1082613-A (GB)
Title: Ferrous metal articles
IPC: C25D5/50
Filed: 1964-09-24
Abstract: A ferrous metal substrate is electro-plated with at least three alternating layers of Cr and Fe of which the first layer is Cr and the plated substrate is then heated to at least 800 DEG C. for a time such as to produce a diffusion coating comprising layers each made up of Cr-Fe alloy, the dimensions of substantially all the grains normal to the coating being at most equal to the thickness of the layer in which they occur and the boundaries of the grains forming tortuous paths between the substrate and the surface of the coating.  The substrate may be cleaned prior to plating.  The Fe plating bath may be operated at a pH below 1 and be vigorously stirred during plating. At the beginning of each cycle of a Cr and an Fe deposition, the substrate may be immersed in the Cr plating bath at least momentarily in the absence of current flow. A Cu strike may be deposited before the laminate plating of Cr and Fe.  Ni or Co may be introduced into the coating e.g. by plating Cr-Ni or Fe-Ni alloy layers rather than the pure elements themselves. Alternatively, layers of an additional alloying element such as Al may be introduced between the alternate layers of Cr and Fe.  The heat treatment, e.g. at 800 to 1100 DEG C., may be in the atmosphere in A, H2 or in a molten salt or molten metal bath, e.g. a bath containing Ca and Cr as disclosed in Specification 964,323 which bath itself serves as a Cr diffusion medium. Heated articles may be quenched, subjected to surface passivation, buffing and cold working. The examples relate to coating aluminium billed steel strip using the following baths and conditions. .Cr Bath.Fe Bath .250 g/l of CrO3.300 g/l of FeCl2.H2O .2.5 g/l of H2SO4.335 g/l of CaCl2 .30 to 35 DEG C..pH < 1 .500 amps/ft2.85 to 90 DEG C ..120 amps/ft2 The plated article in Examples 1 and 2 is heated in a molten Ca-Cr bath, quenched in an oil bath, cleaned in bath containing trichlorethylene and dried.  In Example 3, it is heated in an H2 furnace and quenched in a blast of cool H2 gas. The process is also applied to mild steel, Ti containing steel and low carbon content irons.  In Example 4, the plated article is heated in an A furnace and quenched in a cool blast of He.
Patent GB-1514009-A (GB)
Title: Lining ring segment for tunnels
IPC: E21D11/15
Filed: 1976-09-22
Abstract: 1514009 Tunnel linings VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE-ALPINE MONTAN AG 22 Sept 1976 [19 Nov 1975] 39325/76 Heading E1F A tunnel lining ring segment comprises a shell 1 connected to two axially and radially outwardly extending flanges 2 and to two circumferentially and radially outwardly extending flanges 3, the shell 1 and flanges 2, 3 constituting an outwardly facing metal tub which is filled with a concrete member 4. Corresponding axial cross-sections of the tub and member 4 have at least approximately corresponding principal axes of inertia. The member 4 is attached to the flanges 2 by a joint which resists shear in a radial direction, such joint being formed by headed dowel pins 5 which are welded to the flanges 2. To allow a degree of articulation, however, gaps 6 may be provided adjacent the longitudinal edges of the flanges 2, the gaps 6 being preferably filled with resilient material 7. The concrete member 4 is provided with reinforcements 8 adjacent its surfaces facing the shell 1 and facing away from the shell. The flanges 3 are U-shaped in cross-section such that they are open towards the tunnel interior, concrete blocks 9 being positioned at intervals between the limbs of each flange 3 to transmit pressure when using a shield. The concrete may be cast in situ, and the shell 1 may be a plate having circumferentially extending corrugations.
Patent GB-1020746-A (GB)
Title: A new zinc organic dithiocarbamate
IPC: C07C333/16
Filed: 1964-09-28
Abstract: The invention comprises zinc N-secondary butyl N-ethyl dithiocarbamate.  It may be prepared by dropwise addition of CS2 to a suspension of N-secondary butyl N-ethyl amine in aqueous NaOH maintained at a temperature of 25-30 DEG , adding the resulting solution, together with commercial hexane, to an aqueous solution of zinc sulphate with agitation, and removing the product by filtration. The product may be used as a vulcanization accelerator and also has bacteriostatic properties. Thus it may be used to retard the growth of Pseudomonas aeruginosa and Philococcus aureus.
Patent GB-1510949-A (GB)
Title: Process for the manufacture of fired refractory bricks
IPC: C04B35/047
Filed: 1976-09-22
Abstract: 1510949 Magnesia-chrome bricks VEITSCHER MAGNESITWERKE-ACTIENGES 22 Sept 1976 [3 Oct 1975] 39337/76 Heading C1J Fired refractory bricks are produced from a mixture of sinter magnesia and from 26-56% chrome ore based on the weight of the mixture, which starting materials both contain fine grains with a size below 0À15 mm, by a process of moulding the mixture into bricks and firing the bricks at a temperature of 1700‹C to 1900‹C, in which process (a) of the sinter magnesia used, from 2-10% based on the weight of the mixture has a grain size of up to 0À1 mm, at least 70% by wt. of this proportion being present in a grain size below 0À06 mm; and (b) the chrome ore used has coarse grains of 0À5 to 5 mm in an amount of 10 to 40% by wt. of the chrome ore and fine grains up to 0À1 mm in an amount of 90-60% by wt. of the chrome ore, the proportion of these fine chrome ore grains below 0À06 mm amounting to at least 70% by wt.
Patent GB-1401025-A (GB)
Title: Method of and apparatus for handling hosiery articles
IPC: B65D27/12
Filed: 1972-08-24
Abstract: 1401025 Packaging hose INTECH CORP 24 Aug 1972 [2 Sept 1971] 39387/72 Heading B8C The disclosure of this Specification is substantially the same as that of Specification 1,401,024 but the claims relate to the packing of the hose by pushing it through an aperture in a supporting surface into a container, the hose being pushed middle portion first so as to fold it. The surface may be vertical or horizontal.
Patent GB-977007-A (GB)
Title: Knife assembly
Inventor: KENNEDY RICHARD THOMAS
IPC: B26B3/02
Filed: 1963-10-08
Abstract: 977,007. Knife handle fixings. EKCO PRODUCTS CO. Oct. 8, 1963, No. 39571/63. Heading B4K. A knife having a blade with an integral tang 14, has a moulded handle 10 having a tangreceiving recess 11 extending rearwardly from the front face 12 and having upright side walls conforming to those of the tang, the upper marginal portion of the recess defining a cavity 11a of circular cross-section adapted to receive an inverted channel member 17 secured to the upper edge of the tang, the tang and channel member being bonded to the recess by adhesive material 20. Lips defined by opposite lower edge parts of the channel member 17 are received in grooves in opposite faces of the tang 14. The entrance to the recess is closed by a bolster plate 21 through which the tang extends and which fits in a depression in the front face of the handle.
Patent GB-1098697-A (GB)
Title: Improvements in or relating to the production of dienes
Inventor: BAILEY HUBERT CHARLES
IPC: C07C5/48
Filed: 1965-09-17
Abstract: Mono-enes are converted to di-enes, and alkylaromatics to alkenyl aromatics, by contact at 50-400 DEG  C. with a molecular oxygen containing gas in the presence of a platinum group metal catalyst deposited on a support material having a surface area greater than 10 sq. metres/ gram.  The metal may be in elemental or combined form (e.g. elemental rhodium, palladium oxide, ruthenium chloride), and suitable supports are carbon, alumina, silica, titania and diatomaceous earth.  The catalyst may also contain compounds of multivalent metals, e.g. V, Mo, W, Cu and Mn, and may contain sulphuric or phosphoric acid.  The process may be carried out in the presence of a carboxylic acid (e.g. acetic acid), and of a gaseous diluent, e.g. CO2, steam, and small quantities of volatile acids such as HCl.  Examples describe the production of butadiene-1,3 from butene-1 or -2, methyl pentadiene from 4-methyl-pentene-1, styrene from ethyl benzenes and alpha-methyl styrene from cumene.ALSO:In the conversion of butene-1 or -2 to butadiene by contact at 50-400 DEG C. with a molecular oxygen containing gas in a presence of a platinum group metal catalyst deposited on a support material having a surface area greater than 10 sq. metres/gram (see Division C5), the optional presence of a carboxylic acid, e.g. acetic acid, leads to ester formation, e.g. butyl acetate and butadienyl acetate.  Suitable catalyst supports are carbon, alumina, silica, titania and diatomaceous earth.  The catalyst may be in elemental or combine form, and may contain a multivalent metal compound, and H2SO4 or H3PO4.
Patent GB-1268081-A (GB)
Title: Starch conversion syrups
IPC: C13K1/00
Filed: 1969-08-08
Abstract: 1,268,081. Enzyme composition; starch conversion syrups. A. E. STALEY MFG. CO. 8 Aug., 1969 [26 Aug., 1968], No. 39803/69. Headings C3H and C3U. An enzyme composition comprises a mixture of diastase, glucoamylase and amylo-1,6-glucosidase having an ability to saccharify starch to a syrup having a minimum dextrose equivalent value of 68%, a minimum fermentable extract of 77% and a maximum dextrose content of 47 %; diastase is defined as an enzyme capable of hydrolysing starch to maltose and higher saccharides, and includes inter alia α-amylase, #-amylase and barley malt. The three enzymes may alternatively be added to the starch sequentially. Diastase containing α- and #- amylase may be obtained from fungi, barley malt or animal sources; α-amylase may also be obtained from bacteria or Aspergillus oryzae; the gluco-amylase must be free from transglucosidase; the α-1,6-glucosidase may be obtained from Aerobacter aerogencs.