baber/WOPTO huggingface dataset:
Patent GB-1083013-A (GB)
Title: Alkali-soluble condensation products
Inventor: HERTEL OTTO
IPC: C08G14/06
Filed: 1964-12-23
Abstract: Alkali-soluble condensation products are prepared by reacting in an alkaline aqueous medium (a) one or more phenols or naphthols with (b) formaldehyde or a formaldehyde donor and reacting the resin oil obtained in a non-acid aqueous medium in any sequence with (c) one or more ureas having the formula <FORM:1083013/C3/1> in which R1 denotes a hydrogen atom, a C1- 4 alkyl radical or -CO-NR5-R2; R2 denotes a hydrogen atom or a C1- 4 alkyl radical; R3 denotes an alkylene radical having up to three carbon atoms which may bear one or more hydroxyl groups or may be interrupted by -O-, -NH- or -N(R4); R4 denoting a hydrogen atom or a C1- 4 alkyl or hydroxyalkyl radical and R5 each of which may be the same or different denotes a hydrogen atom, a hydroxymethyl group or an alkoxymethyl group having up to 5 carbon atoms in the alkoxy radical and (d) one or more mononuclear aromatic carboxylic or sulphonic acids, which may contain hydroxyl or amino groups, aryloxy fatty acids or aliphatic polycarboxylic acids which may contain hydroxyl groups.  The preferred component (a) is a phenol or naphthol which is free from sulphonic groups.  Component (b) may be an aqueous solution of formaldehyde, paraformaldehyde, trioxymethylene or hexamethylene tetramine.  The preferred components (c) are urea, a monoalkylurea, a symmetrical dialkylurea, a N, N1-alkylenurea or a methyol or methylol ether derivative thereof. The acid (d) may be benzoic acid, phthalic acid, salicylic acid, o-cresotinic acid, gallic acid, an amino-benzoic acid, malonic acid, succinic acid, adipic acid, tartaric acid, malic acid, citric acid, phenoxyacetic and cresoxyacetic acids, sulphanilic and metalinic acids.  The products may be used as laking agents for basic dyes. Flexographic printing inks are obtained by dissolving a copolymer of styrene and the acid ester of maleic acid with n-butanol in a mixture of ethanol and ethylene glycol and adding to this a basic dye such as rhodamine, auramine, malachite green, diamond green and Victoria blue dyes and one of the above condensation products.
Patent GB-1341456-A (GB)
Title: Information storage including an erasing mechanism
IPC: H04L9/22
Filed: 1971-11-10
Abstract: 1341456 Data storage ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT 10 Nov 1971 [14 Dec 1970] 52210/71 Heading G4C Data held in a magnetic store can be erased independently of the power supply by a device which includes a manually movable member and means operable to convert movement of the member to an erasing signal which is supplied to the store, e.g. a shift register or magnetic tape. The erase device may include a piezoelectric element supplying an output signal to an oscillator or an electromagnetic or electrostatic generator. In the case of a tape store the device may be coupled with the tape drive.
Patent GB-1283696-A (GB)
Title: Improvements in or relating to multistage rotary fluid flow machines
Inventor: ANDERSON HAROLD HENRY
IPC: F04D29/44
Filed: 1968-11-05
Abstract: 1283696 Centrifugal pumps WEIR PUMPS Ltd 28 Aug 1969 [5 Nov 1968] 52344/68 Heading F1C A multi-stage rotary fluid-flow machine, e. g. a centrifugal pump, has interstage guide passages each comprising a radial portion 4, Fig. 1, having spirally curved blades of a radius not greater than the external radius of the associated rotor 1 and defining flow channels therebetween. The inter-blade spacing measured transverse to the direction of flow, increases over at least a major portion of each channel from its outer periphery. Moreover, a further blade arrangement (18 or 20), Figs. 2 and 3 (not shown), is included in each channel to mitigate turbulence therein. The portions 9 of the guide passages may be semitoroidal.
Patent GB-1104502-A (GB)
Title: Bulk containers
Inventor: FORMAN RONALD MAX
IPC: B65D90/04
Filed: 1965-06-24
Abstract: 1,104,502. Containers lifted by fork trucks; containers; hoppers. INTERFIL Ltd. 26 Sept., 1966 [24 June, 1965], No. 52420/64. Headings B8H, B8P and B8S. A container for powdered materials comprises a casing 1, a cover 2 with a filling hole and cap 3 and a central outlet at its lower end. The casing 1 has an inner lining 4 of resiliently flexible material 4 with an upper portion 4a clamped under the cover 2 and a lower conical portion 4b joined to a tubular shoot 6 passing through the outlet. The shoot 6 is composed of flexible material and a control valve is provided by parallel bars 7 operated by a handle 9. When the container is filled the lower portion 4b is deformed against the casing and the upper portion 4a stretched, thereby providing maximum storage volume in the casing. At a certain stage during the emptying of the container the weight of the remaining contents is such that the lower portion 4b of the lining gradually recovers its original conical form, forming a shoot or funnel to assist discharge of the contents. With some fine powdery material, the material may not flow when the outlet valve is initially opened. This difficulty is overcome by a helical spring 17 suspended from brackets 18 and expanded downwardly by pulling on a handle 22 to cut a core in the material which falls through the outlet. Thereafter the material flows readily. The amount of material remaining in the container at any moment during use is indicated by a pointer 15 cooperating with a scale 16. The pointer is attached to a line 11 anchored at 12 and deflected by the deformation of the lining 4.
Patent GB-1103479-A (GB)
Title: Fluid seal device
Inventor: BILL ARTHUR
IPC: F16J15/24
Filed: 1966-11-24
Abstract: 1,103,479. Seals. ROLLS-ROYCE Ltd. 24 Nov., 1966, No. 52722/66. Heading F2B. [Also in Division F1] A split sealing ring 32 is supported in a channel member 31 and urged into sealing engagement by a resilient packing 33 made of fibrous metallic material. As shown, the channel member 31 is disposed between the compressor casing 21 and combustion equipment 13 of a gas turbine jet engine (see Division F1), the split sealing ring 32 being urged into sealing engagement by the fibrous metallic material 33 which may be compressed woven metal wire, diffusionbonded metal fibres or resin-bonded metal fibres. In Figs. 3, 5 and 7 (not shown), the sealing-ring (S) is urged both radially on to the surface to be sealed and axially on to one face of the ohannel member (C) by use of either inclined surfaces or an additional resilient packing (P2) and washer (W). In Figs. 4, 6 and 8 (not shown), the sealing ring is urged outwardly, instead of inwardly, into sealing engagement.
Patent GB-1245636-A (GB)
Title: Progressive leaf spring assembly
Inventor: MOHL STEFFEN
IPC: F16F1/22
Filed: 1968-11-08
Abstract: 1,245,636. Leaf springs. S. MOHL. 8 Nov., 1968 [8 Nov., 1967], No. 53130/68. Heading F2S. In a vehicle suspension spring assembly of the form shown in Fig. 1, the product EI (modulus of elasticity x moment of inertia) is at least four times greater at the clamped section of the thick leaf 12 than the sum of the products EI for each of the thin leafs 10. Also, the thick leaf tapers away from the clamping point towards its end or, with centre clamping as shown, both ends. The set or pocket of thin leaves diverges from the single thick leaf in a direction away from the clamping point, and the curvature of the upper surface of the thick leaf varies in the manner shown in Fig. 4. Fig. 4 is a plot of this curvature against distance along the spring between the free end A and the clamped end C, B being one-third of the distance from C to A. An alternative curvature variation is A<SP>1</SP>BC-i.e. the curvature increases from C to B and remains unchanged thereafter. The above relates to the unloaded state of the assembly; the effect of applying a predetermined full load is to impart substantially circular curvature to the leaves (Fig. 3, not shown).
Patent GB-1162845-A (GB)
Title: Wad Column
Inventor: HORN WILLIAM B
IPC: F42B7/08
Filed: 1966-11-28
Abstract: 1,162,845. Shot pouch and overpowder wad combination. FEDERAL CARTRIDGE CORP. 28 Nov., 1966, No. 53244/66. Heading F3A. Shot pouch and overpowder wad combination, e.g. of plastics, for use in a shotgun cartridge comprising a tubular member 12 divided by a wall 16 into a pouch 14, for shot 32, and a spacer portion 17; an overpowder wad 11 having a cylindrical wall 23 and a hub 25; and a support post 18 yieldably spacing the wall 16 from the wad 11. One or more grooves 19 is provided in the spacer portion 17 to enable the spacer portion to distort radially and form a series of gas sealing surfaces upon firing of the cartridge. An air passage 55 is provided in the wall 16. The shot pouch is divided into segments by a plurality of longitudinal slits (not shown), and the spacer portion 17 may be connected to the wall 23 of the wad through a butt-lap joint 21. The post 18 may also be connected to the hub 25 through a butt-lap joint or through a snap connection. The tubular member 12 separates from the overpowder wad upon firing the cartridge.
Patent GB-1130387-A (GB)
Title: Ester interchange reactions
IPC: C08G63/78
Filed: 1966-11-29
Abstract: 1,130,387. Ester interchange reactions. E. I. DU PONT DE NEMOURS & CO. 29 Nov., 1966 [22 Dec., 1965], No. 53424/66. Heading C2C. In a continuous process of effecting an ester interchange reaction between a glycol and a diester of a dicarboxylic acid, esterified with an alcohol of up to 4 carbon atoms, in the presence of an ester interchange catalyst, the reaction is begun in a reaction vessel kept at 150-210 C. and allowed to proceed within 40-70% of completion, whereafter the mixture is fed to a reaction column, kept at 205- 260 C., down which the mixture passes, further glycol being added to the mixture during its passage down the column. Volatile by-products are withdrawn from the top of the column. Comparative examples are given of the manufacture of di-(#-hydroxy-ethyl)-terephthalate from ethylene glycol and dimethyl terephthalate in the presence of a catalyst comprising manganous acetate, antimony oxide and sodium acetate. Apparatus is described.
Patent GB-1430290-A (GB)
Title: Valves for control of the flow of fluid
IPC: F16K1/22
Filed: 1973-11-19
Abstract: 1430290 Valves CRANE Ltd 15 Nov 1974 [19 Nov 1973] 53629/73 Heading F2V A check valve comprises two ring components 1, 2 and two substantially semicircular hinged valve members 6, 7 which seat on an annular seal 4. The seal may be integral with a corrugated seal (4C) Fig. 4 (not shown) between the rings and may be located in a recess in the ring 2. The seal 4 includes a diametral part 4B.
Patent GB-1414710-A (GB)
Title: Process for the production of acrolein and acrylic acid
IPC: C07C67/00
Filed: 1973-11-23
Abstract: 1414710 Acrolein and acrylic acid SOC ITALIANA RESINE SIR SpA 23 Nov 1973 [30 Nov 1972] 54620/73 Heading C2C [Also in Division B1] In the preparation of acrolein and acrylic acid from propylene or mixtures of propylene and acrolein or acrolein respectively, by oxidation with oxygen or a gas containing oxygen in the presence of a catalyst, the gaseous mixture contains from 0À01 to 1% by volume of methanol and the reaction is at from 320‹ to 450‹ C. with a pressure of 1-5 atmospheres for a contact time of 0À1 to 6 seconds. The oxidation catalysts may be combinations of cobalt, molybdenum, arsenic, tin, tellurium, manganese, nickel, bismuth, phosphorus, boron, iron, vanadium, rhenium, tungsten, zinc and antimony either as oxides or compounds with at least two metals and oxygen. Examples describe the use of catalysts prepared from cobalt nitrate and ammonium heptamolybdate; metallic tellurium, ammonium molybdate and nickel nitrate or cobalt nitrate.
Patent GB-1415886-A (GB)
Title: Preparation of terephthalic acid
IPC: C07C51/265
Filed: 1972-11-27
Abstract: 1415886 Terephthalic acid TEIJIN Ltd 27 Nov 1972 [25 Nov 1971 11 Oct 1972] 54712/72 Heading C2C The invention comprises a process for the preparation of terephthalic acid by oxidizing p-xylene and/or p-toluic acid-in the liquid phase with a free-O 2  containing gas and recovering terephthalic acid from the reaction mixture, the reaction being carried out (i) in the substantial absence of halogens, halogen containing compounds, C 1-6  aliphatic monocarboxylic acids and anhydrides thereof, (ii) in the presence of a mixture of cobalt or a cobalt compound and manganese or a manganese compound, which compounds are at least partially soluble in the reaction mixture, the total amount of cobalt and manganese, as metal, being 0À005-0À5 wt. per cent of the reaction mixture and the weight ratio of cobalt metal to manganese metal being 99À8 : 0À2 to 20 : 80 and (iii) at a temperature of 150-220‹ C. The reaction mixture produced in the above process by oxidation of p-xylene may be heat treated at a temperature in excess of 220‹ C., optionally after removal of unreacted p-xylene, said heat treatment preferably being carried out over 10 mins. to 30 hours, the product of said heat treatment being optionally treated with a solvent, e.g. p-xylene; prior to separation of terephthalic acid by filtration.
Patent GB-1242580-A (GB)
Title: Permanent portable plant protector
Inventor: MILLER HERBERT JAMES
IPC: A01G13/10
Filed: 1968-11-19
Abstract: 1,242,580. Plant protector. H. J. MILLER. 15 Nov., 1969 [19 Nov., 1968], No. 54821/68. Heading A1E. A plant protector comprises a rectangular mesh sheet A of p.v.c. from which extends a mesh disc C, stud fastening means being provided to hold the sheet in cylindrical shape with the disc forming a lid.
Patent GB-548855-A (GB)
Abstract: 548,855. Cylinders. AKTIEBOLAGET BOLINDER-MUNKTELL. Feb. 10, 1942, No. 1730. Convention date, Jan. 15, 1941. [Classes 7 (ii) and 7 (iii)] In engines with piston-controlled scavenging- ports 18 adjacent to exhaust ports 16, the guide blades 24 provided on the piston for directing the scavenging-air towards the centre of the cylinder are formed in sections each separately attached to the piston, as by screws 26, so as to allow them to expand or contract relatively to the piston under changes of temperature. The blade sections are preferably made of heatresistant sheet steel. The cylinder head is formed with recesses 30 to take the guide blades, and with a central boss 32 which is formed with radial grooves for distributing the fuel from an injector 34. The ports 16, 18 are preferably tangentially inclined.
Patent GB-1393439-A (GB)
Title: Vessels for containing radioactive material
IPC: G21C19/07
Filed: 1972-11-28
Abstract: 1393439 Storage ponds SIEMENS AG 28 Nov 1972 [30 Nov 1971] 55017/72 Heading B4Q A vessel for containing radioactive material under cover of water is provided with a sheetform member for covering the free surface of the water when the vessel is in use to inhibit passage of water vapour from the vessel into the atmosphere above the said member. The sheet form member may be made of plastics material and fitted over a buoyant frame adapted to float on the water when the vessel is in use. The buoyant frame may be made of polyethylene or inflatable tubing. For covering tanks such as fuel element tanks (Figs. 1, not shown), a sheet-form member having the shape of an air mattress 8 is more suitable. As shown in Fig. 5, this may comprise two sheets 9 and 10, the sheet 9 facing the water in the container consisting of a material permeable to water vapour (e.g. cellulose products), and the sheet 10 remote from the water of a material (e.g. plastics), which is to a considerable extent proof against water vapour diffusion. Vapour containing radioactive substances and penetrating into the cavities of the air mattress 8 can be drawn off via outlets valves 11. In addition it may be expedient to connect to a device for suctional extraction the cavities below the air mattress 8, delimited by the free surface of the water and by the sheet 9. The air mattress 8 may be relieved of pressure by a device consisting of a winding reel 12 and two rollers 13 and 14 pressed against each other by spring pressure. During the rolling of the air mattress on to the reel 12 the air cushions between the sheets 9 and 10 are compressed by the rollers 13 and 14, so that the included gas escapes out of the outlet valves 11.
Patent GB-1157136-A (GB)
Title: Apparatus for the Feeding of Start Sheets for Electrolytic Refinement of Copper
IPC: C25C1/12
Filed: 1966-12-08
Abstract: 1,157,136. Feeding sheets. C. J. WENNBERGS MEKANISKA VERKSTAD A.B. 8 Dec., 1966 [17 Dec., 1965], No. 55081/66. Heading B8R. Sheet carriers and forwarders.-A copper sheet 1 provided with suspension members comprising lugs 2 and a rod 3 is advanced in a horizontal plane up to and on to horizontal table 16 pivotally mounted about shaft 17, by a main conveyer comprising endless chains 14, advanced stepwise by the length of one sheet. Rod 3 rests in channel 3a on table 16 while the latter is swung into a vertical position whereby hooks 38 on endless chain conveyer 37 receive the raised sheet. Movement of rod 3 over cam surfaces 33 assist the suspension of sheet 1 from hooks 38, Fig. 5. At collecting station 6 the sheets are transferred by guide cams 43 to stepwise advanced endless chain collecting conveyer 45. A group of sheets collected on conveyer 45 is picked up by unloading carriage 55 running in grooves 56. A pair of shafts 58 in carriage 55 carry bell crank levers 59 and lifting rods 60 which have projections 61 extending inwardly below the ends of all rods 3. Actuation of a piston (63, Fig. 3) causes the bell cranks to be turned and rods 3 carrying the sheets to be lifted from conveyer 45. Movement of piston 67 carries the carriage 55 and the group of start sheets into the position shown dotted where a stepwise advanced conveyer 70 receives the sheets and advances them into a magazine ready to be inserted in an electrolytic tank.
Patent GB-1488274-A (GB)
Title: Butynyl carbamates
IPC: C07C307/02
Filed: 1974-12-20
Abstract: 1488274 Butynyl carbamates BASF AG 20 Dec 1974 [28 Dec 1973] 55094/74 Heading C2C [Also in Division A5] The invention comprises compounds having the formula wherein R<SP>1</SP> is an aromatic hydrocarbon ring which is optionally substituted by one or more halogen, nitro, alkyl, alkoxy, or haloalkyl groups, and R<SP>2</SP> is hydrogen, alkyl or haloalkyl. They may be prepared by reacting a compound of the formula with a compound of the formula where X is halogen; or by reacting a compound of the formula with an isocyanate of the formula or with phosgene and an amine of the formula The compounds of the invention exhibit herbicidal activity.
Patent GB-1211693-A (GB)
Title: Improvements in or relating to electron emission microscopes
Inventor: DUGDALE RONALD ARTHUR
IPC: H01J37/285
Filed: 1966-12-12
Abstract: 1,211,693. Electron microscopes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 8 Dec., 1967 [12 Dec., 1966], No. 55619/66. Addition to 1,145,013. Heading H1D. An electron emission microscope in the form of a non-thermionic glow discharge device comprises, within an enclosure having a gas inlet and a gas outlet such that a suitable gas admitted to the enclosure is maintained therein at a predetermined pressure an electrode structure 2 including a hollow, open-ended, tubular anode 4 and an apertured cathode 5 adjacent one end of the anode, a fluorescent screen 3, and an electrically conducting specimen 7 mounted adjacent the side of the cathode remote from the anode, wherein upon application of suitable potentials to the anode, cathode and specimen a glow discharge takes place which results in a stream of electrons 18 being produced which tend to be focused on the fluorescent screen to give a visible image representing part of the specimen. The continuously evacuated enclosure may contain for example argon, hydrogen, helium or air, at a pressure of 100 microns of Hg. In operation the anode may be maintained at earth potential, the specimen at -15 kv. and the cathode variable over the range Œ200 v. relative to the specimen. The glow discharge occurs within the anode due to electrons from cathode 5 and specimen 7 ionizing the gas within the anode and some of the positive ions so created striking cathode 5 and specimen 7 to release more electrons. An electromagnetic focusing lens 19 or an optical microscope (not shown) may provide additional magnification of the image. Provision may also be made for changing and manipulating the position of the specimen, and for heating of the specimen. The electron beam 18 may be deflected by an external magnet to alter the region of the specimen seen on the fluorescent screen.
Patent GB-556617-A (GB)
Abstract: 556,617. Yarns. BRITISH CELANESE, Ltd. April 10, 1942, No. 4732. Convention date, April 11, 1941. [Class 120 (iii)] Continuous yarns are given the appearance of staple fibre yarns by guid. ing the yarn into sliding contact with the surface of an abrasive member mounted on a member rotated by contact with the run. ning yam ; the guiding means including a guiding edge curved about a centre on the axis of the rotatable member and adapted tc deflect and guide the yarn between the rotatable member and the abrasive mem. ber. As shown yarns 21 are passed around a pulley 3 to a guide 13 and thence to a take-up device, the pulley being freely rotatable in a bearing 2 and having an annular guiding edge or flange 4 with a flat surface to which an abrading wheel 7 is fixed; the guiding edge 4 and guide 13 position the yarn with respect to the wheel 7 which has a rounded edge and the guide 13 is carried by a bracket 15 which is adjustable in the bar 1 carrying the bearing 2. The bar may be adjustably mounted on the frame of a winding or like machine by a rod 11 which is fixed in one of a series of openings 10 in a bar 8 adjustably fixed to the bar 1. Specification 543,338 is referred to.
Patent GB-1172507-A (GB)
Title: Electrical switches
IPC: H01H3/36
Filed: 1966-12-15
Abstract: 1,172,507. Actuation of switches; high-voltage switches. SIEMENS A.G. 15 Dec., 1966 [15 Dec., 1965], No. 56326/66. Heading H1N. The moving contact 1 of, e.g., a high voltage disconnect switch, is operated by a crank 3 by means of a cable 9 secured to the contact 12, passing over a pin or pulley 8 on the crank and secured to a fixed point 14. A second cable 18 causes reverse movement of the contact. Two oppositely moving contacts may be simultaneously operated by two pairs of cables passing round pins on opposite ends of a doubleended crank and also round respective fixed pulleys, Fig. 2 (not shown). Actuation of the crank, which is mounted on a rotatable shaft 4, by a compressed-air drive is mentioned. The cable may pass round a multi-pulley lifting tackle.
Patent GB-1174783-A (GB)
Title: Surface Halogenated Nylon Fibers
IPC: D06M11/09
Filed: 1966-12-16
Abstract: 1,174,783. Surface halogenated nylon fibres. MONSANTO CO. 16 Dec., [6 Jan., 1966], No. 56374/66. Heading B5B. A halogen modified nylon fibre on which halogen having an atomic number between 17 and 53 is attached to polyamide molecules essentially on the skin or surface of the fibre in a proportion with the range of from 50 to 5000 parts by weight per million parts of fibre may be produced by passing the fibre through an atmosphere containing halogen in the absence of an initiator in such a manner that the concentration of halogen in the atmosphere and the period of residence of the fibre in the reaction zone does not allow diffusion of the halogen into the core of the fibre. The halogen is thereby bonded to the surface a skin of the fibre predominantly in the form of a halogenamide group adduct which may be described as a change transfer complex. Exposure of the product formed to ultraviolet or other energy source results in rearrangement of the halogen atoms such a portion of the co-ordinate bonded halogen atoms substitute on the surface molecules in the form of a covalently bonded halogen. The preformed nylon fibre may be simultaneously subjected to the action of halogen and an initiator for halogenation, such as ultraviolet light. The period of residence of the fibre in the halogen atmosphere may be less than 2 seconds and the halogen may be diluted by an inert gas such as nitrogen. The light source may be other than ultraviolet to effect photochemical halogenation. Bulbs emitting light of wave length in the range of 3300 to 4800 angstroms may be used.