baber/WOPTO huggingface dataset:
Patent GB-1175240-A (GB)
Title: Process and Device for the Manufacture of Acetoacetic Acid Esters.
IPC: B01J19/24
Filed: 1967-12-21
Abstract: 1,175,240. Acetoacetic acid esters. FARBWERKE HOECHST A.G. 21 Dec., 1967 [24 Dec., 1966], No. 58147/67. Heading C2C. Acetoacetic acid esters are prepared by reacting diketene with an aliphatic or cycloaliphatic alcohol that has a boiling point below 140‹ C., in the presence of, as catalyst, a basic compound and/or a betaine and under superatmospheric pressure. Examples of the basic catalyst include tertiary amines of the formula NR 3  in which each R stands for the same or different aliphatic, cycloaliphatic, araliphatic, aromatic or alkanol radicals; cyclic tertiary amines, quaternary ammonium salts, tertiary phosphines, di- and tri-basic sodium phosphates and other inorganic salts that have alkaline reactions in aqueous solution. A preferred apparatus for carrying out the process of the invention comprises a subdivided reactor in which the reaction mixture is boiled under reflux.
Patent GB-1188320-A (GB)
Title: Preparation of Nitroimidazoles
Inventor: KOLLONITSCH JANOS
IPC: C07D233/92
Filed: 1967-12-22
Abstract: 1,188,320. Nitro-imidazoles. MERCK & CO. Inc. 22 Dec., 1967 [30 Dec., 1966], No. 58308/67. Heading C2C. A (1 - alkyl - 5 - nitroimidazol - 2 - yl) alkyl carbamate is prepared by treating a corresponding thionocarbamate with a desulphurizing agent under alkaline conditions. The product preferably has the formula (in which R 1  is C 1-5  alkyl; and R 2 , R 3  and R 4  are each H or C 1-5  alkyl). Suitable reagents are lead acetate and mercuric oxide. 1 - Alkyl - 5 - nitroimidazol - 2 - ylalkyl thionocarbamates used as starting materials are prepared by reacting a 1-alkyl-2-hydroxyalkyl-5- nitroimidazole with phenoxy - thiocarbonyl chloride to give the corresponding 1-alkyl-5- nitroimidazol - 2 - ylalkyl phenylthtonocarbonate and reacting this with ammonia. Specification 1,153,347 is referred to.
Patent GB-1404458-A (GB)
Title: Additives for powder resins
IPC: C08F220/18
Filed: 1972-12-19
Abstract: 1404458 Polymer blend powder coatings BAYER AG 19 Dec 1972 [22 Dec 1971] 58488/72 Heading B2E [Also in Division C3] Substrates such as pipes, wire netting and forestry and agricultural tools are coated with a powder coating composition comprises a resin or resin mixture containing polymerised units of at least 35 wt. % of a mixture of styrene and one or more acrylic compounds, together with from 0.1-5 wt. %, based on the whole mixture, or a solvent free copolymer haying an average molecular weight of from 1000 to 10000 and a viscosity of from 1-1000 poises at 100C comprising copolymerised units of: (1) 1-20 parts by wt. of an alpha, betamono-olefinically unsaturated C 3-5  carboxylic acid; (2) 0-50 parts by wt. of a C 1-4  alcohol ester of acrylic or methacrylic acid and (3) 30-99 parts by wt. of a C 5-20  alcohol ester of acrylic or methacrylic acid, the sum of the parts by wt. being 100. The preferred styrene copolymer contains units of (A) 25-60 wt. % styrene, (B) 10-70 wt. % of at least one ester of acrylic or methacrylic acid and (C) 5-30 wt. % of at least one other monomer selected from a C 2-8  hydroxyalkyl ester of a C 3-5  alpha beta unsaturated carboxylic acid, (meth)acrylamide, an N-methanol amide or C 1-4  alkyl ether thereof, of acrylic or methacrylic acid, acrylic acid, methacrylic acid, fumaric acid, maleic acid, itaconic acid, crotonic acid, glycidyl acrylate or methacrylate, 2-phenyl allyl alcohol, hydroxymethylnorbornene or a reaction product of a hydroxy group containing monomer with an alkoxymethylisocyanate. The composition may also comprises 1-50 wt. % based on the second polymer, of at least one methylolated urea or melamine resin, polycarboxylic acid, polyalcohol, polyisocyanate, blocked polyisocyanate, polyepoxide, polycarboxylic acid anhydride, polyamide, polyamine, polyoxazoline or polydihydroxyazine as external crosslinking agent, and also fillers and other processing aids. The powder is electrostatically sprayed onto substrates such as iron sheets, vehicle bodies, fascade panels, and forestry and agricultural tools, and levelled and cured by baking.
Patent GB-1417408-A (GB)
Title: Absorption
IPC: C01B17/60
Filed: 1972-12-19
Abstract: 1417408 Alumina absorbent UNISEARCH Ltd 19 Dec 1972 [24 Dec 1971] 58614/72 Heading C1A Aluminium oxide containing ores or mineral residues, suitably bauxite or red mud waste product, are leached with an alkaline solution of sodium or potassium hydroxide and the leach liquor filtered off, to which is added sodium or potassium carbonate, prior to drying the liquor to produce a sodium or potassium aluminate containing absorbant for SOx from industrial gases. The leaching is preferably carried out at 50‹ to 100‹ C. and drying, after evaporation at 600‹ to 700‹ C.
Patent GB-1501083-A (GB)
Title: Testing of soils and like materials
IPC: G01N33/24
Filed: 1973-12-22
Abstract: 1501083 Soil testing apparatus RHG PARRY 14 March 1975 [22 Dec 1973] 59688/73 Heading G1S A specimen 1, Fig. 2, to be triaxially tested for strength and deformation is placed on a base 2 and surmounted by a cap 28 and the apparatus shown. Compression is applied by a piston 9 which is forced down through a bush 10 by a platen 13 acted upon a spring 6 and a further platen 14 driven downwardly by gearing 7 and 12. A rigid cell 4 containing the specimen may be filled with air and water forced there into and a duct 3 allows measurement of the drainage and/or pressure of pore fluid to be gauged. The downward movement is measured by a post 17 operating a dial gauge mounted on a fixed frame post 16 and the load on the specimen is measured by the relative movement between 12 and the top of a rod 11 fixed to the platen 13 but extending with clearance up through 12 to a pointer 20, Fig. 1, registering on a scale 18. For oedometer tests measuring deformation only under axial load alone and without surrounding fluid pressure, the parts 5, 6, and 7 are removed by undoing bolts 25 and the platen containing the bush 10 lifted out. The specimen is peripherally enclosed by a retaining ring, and an intermediate base member is positioned between the specimen and the pedestal, a longer soft spring is then inserted and the platen 13 arranged to contact the specimen 1 directly. The cell 4, the guide cylinder 5 and the top assembly are then replaced and the compression test carried out as before but without the surrounding fluid-pressure.
Patent GB-1286877-A (GB)
Title: Apparatus for effecting the filtration of fluids for example water and charging underground formations
Inventor: NEBOLSINE ROSS
IPC: E21B43/20
Filed: 1969-12-09
Abstract: 1286877 Well-lining filter R NEBOLSINE 9 Dec 1969 60150/69 Heading B1D [Also in Division E1] Apparatus to be inserted into an underground formation which is to be charged with a fluid comprises a perforated casing 3 having outwardly extending annular plates 15 between each pair of which there is at least one perforation so that when filter medium F is inserted around casing 3 regions of reduced density or voids in the filter medium are formed. The filter medium, for example sand, is contained in the annular space between casing 3 and another perforated casing 2 which is a sliding fit in an imperforate shield 1. Fluid - for example water - is passed into casing 3 through valve 11 and flows out through the filter medium and casing 2. When the filter medium becomes compacted or clogged, reverse flow head 14 secured to the end of tube 4 suspended from cable 6 is removed up and down causing a flow of fluid which may be aided by suction pump 1 through the head and into the tube. This flow causes movement of the filter medium into the regions of reduced density and a loosening of dirt from the surfaces of the filter medium. In a modification suitable for the formation to be recharged with oil containing solid particles, casing 2 has an imperforate portion extending to cap 8 and surrounded by further filter medium within the imperforate shield, tube 3 extends beyond the bottom of casing 2, and tube 4 is moved in tube 4a by means of a piston cylinder arrangement.
Patent GB-1287745-A (GB)
Title: Water repellant fabric-treating composition
Inventor: GENNEP WILLEM VICTOR VAN
IPC: D06M13/188
Filed: 1968-12-18
Abstract: 1287745 Proofing against water; stiffening fabrics PERMASHIELD CHEMICALS Ltd 16 March 1970 [18 Dec 1968] 60260/68 Heading D1P Fabrics are rendered water-repellent by treatment with a solution in a volatile organic solvent of a hydrophobic metallic soap, paraffin wax and a minor amount of polyethylene wax and/or hydrophobic silicone. The soap may be aluminium stearate (optionally polymeric). Other specified additives are; a coumaroneindene resin to enhance fabric stiffness; a volatile organic acid (e.g. acetic acid)-cationic surfactant mixture to give a pH of 4.5-5.5; and butyl titanate as a silicone curing catalyst. The solvent may be xylene and/or perchloroethylene. The treatment may form part of a dry cleaning process or the solution may be applied as an aerosol.
Patent GB-1288299-A (GB)
IPC: G21C3/64
Filed: 1969-12-24
Abstract: 1288299 Fuel elements NUKEN NUKLEAR - CHEMIE UND - METALLURGIE GmbH 24 Dec 1969 [17 Jan 1969] 62765/69 Heading G6C Fuel compacts for high temperature fuel elements are made by moulding under high pressure in an elastic rubber mould a mixture of coated fuel particles and a moulding powder consisting of natural graphite and/or graphitized petroleum cake and a binder, preferably a phenol resin binder. The mould preferably is cast in vacuo from silicone rubber, and is cylindrival with a central cylindrical cavity for accommodating the moulding mix. It is introduced into a cavity of a steel press and pressed with top and bottom force. The dimensions of the mould and its cavity are matched to one another in such a way that compaction of the moulding mix is equal in intensity both in the axial and in the radial direction. This provides for completely non-destructive moulding of the coated particles under a force of more than 3 t./cm.<SP>2</SP> and at the same time imparts excellent low anisotropy to the graphite matrix of the moulding. The enable the mouldings to be machined after heat-treatment they are preferably enveloped in a fuel-free outer layer using a two-stage moulding process. It is also possible for the moulding pressure to be applied isostatically from outside the mould through a liquid. To coke the binder the mouldings are heated to around 800‹ C. in an inert gas stream and then vented in vacuo at around 1800‹ C. Any shape compact, not only cylindrical, may be produced by this method using a suitable rubber mould. The compact may be provided with graphite spacer members, cooling ducts or annular gaps directly during moulding.
Patent GB-658342-A (GB)
Abstract: 658,342. Flush mounting of relays. ROSS. T. W..RYDER. C., and METROPOLITAN VICKERS ELECTRICAL CO., Ltd. March 24, 1949, No. 8119. [Class 38(v)] In an arrangement wherein, a relay 2 is mounted within a main casing 3 fixed behind an aperture in a panel 1, accessibility of the relay elements is provided by mounting the relay on guide rods 7 so that after the cover 4 has been removed the relay 2- may be slid forward to the extent allowed by stops 7a, 7b. The terminals of the relay are connected to the rear contacts 5 by helical or other extensible conductors which allow the above movement.
Patent GB-777800-A (GB)
Abstract: 777,800. Calculating-apparatus. ELECTRICITE DE FRANCE-SERVICE NATIONAL DIRECTION DES ETUDES ET RECHERCHES. Dec. 29, 1955 [Dec. 29, 1954], No. 37333/55. Class 106 (1). In a Thomas-type multiplying apparatus, comprising stepped toothed drums 13, 14 and 15 settable to the digits of a multiplicand, the shaft 10 of the drums is adapted to be driven, through step-up gearing 11, 12 of 10-1 ratio, from the output shaft 5 of a further stepped drum mechanism 4, 7 which is settable to the multiplier digits in succession. In the apparatus shown, the drum 4 comprises ten wheels secured to an operating shaft 3, the first wheel being untoothed and the succeeding wheels bearing numbers of teeth n, 2n-9n with progressively smaller untoothed segments. The co-operating wheel 7 is splined to the shaft 5 for axial adjustment to engage any one of the wheels 4. The wheel 7 has 10n tooth distributed over its whole circumference but with every nth tooth cut back to the pitch circle. As a result, one revolution of the operating shaft 3 results in a number of revolutions of the shaft 10 corresponding to the adjustment of the wheel 7, the shaft 10 becoming locked upon completing these revolutions. The drums 13, 14 and 15, together with their coacting wheels 21, 22 and 23, are constructed similarly to the drum 4 and wheel 7, the drums, however, are splined to the shaft 10 for individual axial adjustment, whilst the wheels 21, 22 and 23 are axially fixed on their common supporting shaft 20. In operation, the drums 13, 14 and 15 are adjusted axially according to the multiplicand digits and the wheel 7 according to each multiplier digit in succession, one revolution being given to the shaft 3 for each of these successive settings. The wheels 21, 22 and 23 are adapted to actuate an accumulator 27 which is step-shifted after each actuation of the shaft 3. In a construction where " n "=2, the units wheel 35, Fig. 2, of the drum 4 is untoothed and has a depression 36 to clear the wheel 30 corresponding to the wheel 7 of Fig. 1. The drive for unit setting is effected by means of an additional one-tooth wheel 33 on the shaft 3, a ten-tooth wheel 34 rigid with the wheel 30 entering into engagement with the wheel 33 at unit setting.
Patent GB-2000138-A (GB)
Title: Therapeutic agents
IPC: C07D499/897
Filed: 1978-06-02
Abstract: 1,1-Dioxides of penicillanic acid and esters are described which are useful as  beta -lactamase inhibitors. These compounds are 1,1-dioxides of penicillanic acid and of corresponding esters which are easily hydrolysable in vivo, derivatives of penicillanic acid 1,1-dioxide, the carboxyl radical of which is protected by a standard protective group of the carboxyl radical of penicillins, which are useful intermediates for the synthesis of penicillanic acid 1,1-dioxide, and 1-oxides of penicillanic acid and of certain of its esters which are useful as chemical intermediates for the synthesis of penicillanic acid 1,1-dioxide and of its esters. These 1,1-dioxides of penicillanic acid and esters are antibacterial agents, also capable of increasing the effectiveness of various antibiotics of the  beta -lactam type with respect to bacteria which produce  beta -lactamase.
Patent GB-2001164-A (GB)
Title: Apparatus for collecting and removing smoke and fumes from a melting furnace plant
IPC: B08B15/02
Filed: 1978-06-26
Abstract: An apparatus for collecting and removing smoke and fumes from a melting furnace plant comprises a platform 1 tiltably supported by stationary supports (there being an induction furnace 4 supported by the platform), a hood 7 pivotable about a parallel axis 31 to the platform tilting axis 3, wherein the hood pivot axis 31 is stationary with respect to the supports and is located above the hood and is connected thereto by a pendulum member 11 to allow movement of the hood from a first position, in which the hood overlies a hole 15 in the platform, to a second position in which a bottom orifice of the hood is located laterally of the platform adjacent the tilting axis. The pendulum member 11 is in the form of a stem directed upwards from the hood and is connected at one end with the hood by a hole in the hood roof and at the other end with an exhaust duct 13. The hood 7 is also pivoted at 20. The furnace position for pouring through a spout 6 is illustrated in Fig. 3 (not shown). <IMAGE>
Patent GB-2003047-A (GB)
Title: Hydrocarbon-feed distributor and method of injecting hydrocarbon feed
IPC: B01J8/24
Filed: 1978-06-26
Abstract: In the field of hydrocarbon processing employing a fluidizable catalyst in a riser reaction zone it is important to achieve a uniform mixture of catalyst and hydrocarbon across the cross-sectional area of the reaction zone at different elevations therein and to avoid excessive wall temperatures. The present invention provides a distributor (2) for this purpose having a truncated cone (2A) with its small diameter end adapted to be connected to the hydrocarbon feed inlet means situated at the lower end of the reaction zone and a circular plate (2B) with several holes through it fitting into the large diameter end nozzles (2C) are fitted into one or more of the holes to direct hydrocarbon feed into the central portion of the reaction zone and other nozzles (2C) are fitted into two or more of the holes to direct hydrocarbon feed to impinge against the inside wall of the reaction zone downstream of the outlets of these nozzles. The invention also provides a method of achieving such uniform description in which a portion of the feed is fed vertically upwards into the central portion of the reaction zone whilst a further portion is directed upwardly at an angle to the vertical so that it impinges on the inside wall of the reaction zone downstream of the inlet. The invention finds particular use in the fluidized catalytic cracking of hydrocarbons. <IMAGE>
Patent GB-2004798-A (GB)
Title: Improvements in and relating to desoldering tools
IPC: B23K1/018
Filed: 1978-09-25
Abstract: The present invention relates to a desoldering tool including a handle 12, an elongate housing 14 extending from the handle and having a heating tip or bit 30 at one end thereof remote from the handle, the bit 30 and housing 14 defining a bore 42 terminating at a chamber 44 remote from the bit, and control vent means 70 intermediate the ends of the bore. The tool is adapted for connecting to a source of electric current for heating the bit 30 and to means for developing suction in the bore 42, whereby, when the bit is applied to a soldered termination and the solder thereof is melted, the solder will be sucked through the bit 30 and collected in the camber 43, said control vent means 70 being operably to increase suction at the inner end of the bit 30. A lining sleeve 46 (e.g. longitudinally slit) is removable, upon accumulation of solder therein, and may be such as to be easily cleaned or may be replaced by a fresh sleeve. <IMAGE>
Patent GB-2006124-A (GB)
Title: Inflatable buoyant elements
IPC: B63B7/08
Filed: 1978-10-11
Abstract: An inflatable, buoyant element comprising one or more sealed tubular bodies, each tubular body being inflatable and being provided with means to reduce its internal cross- section at specified points. This is achieved by attaching one or more bellows-type devices 14 on the internal surface of each sealed tubular body. The inflatable buoyant elements are particularly suitable as components of marine craft. Such components may also be used in the manufacture of collapsible swimming pools. <IMAGE>
Patent GB-2005352-A (GB)
Title: Rotary positive-displacement fluid-machine
IPC: F01C1/18
Filed: 1978-10-12
Abstract: A motor, or pump, comprises a pair of rotors which are basically plain or toothed rollers that roll closely together. The greater portion of the peripheral surface of each roller comprises either one continuous surface of at least 270 degrees or two diametrically opposite continuous surfaces of at least 90 degrees each, each continuous surface being clear of any projection which would effectively sweep the annular space between the said peripheral surface and the casing. The remainder of the peripheral surface of each roller is furnished with a radial projection(s) and a recess(es), which allow(s) the projection(s) on the other rotor to pass at the nip, the or each projection extending to the inner peripheral surface of the casing. Working-fluid ports may be controlled by the rotors. <IMAGE>
Patent GB-2007523-A (GB)
Title: Heat Exchange Tube Apparatus
IPC: B01J8/06
Filed: 1978-11-06
Abstract: Tube apparatus, particularly reaction apparatus for carrying out catalytic reactions, comprises an annular contact tube bundle through which a recirculated heat transfer medium can be passed in a radial direction in at least one position. To reduce the resistance to flow of the heat transfer medium, the ratio of the outer diameter to the inner diameter of the annular contact tube bundle is </=5:1, preferably </=4:1.
Patent GB-2011246-A (GB)
Title: Building members or structures
IPC: A47B96/14
Filed: 1978-12-13
Abstract: This invention relates to an elongate structural member and to structures made therefrom, and comprises an elongated channel member 1 of triangular cross section which has a pair of side flanges 2 and 3 separated by a web 4, the flanges 2 and 3 and web 4 forming the sides of the triangle. Engagement means for fittings are provided in the form of apertures 8. A basic structure such as a shelf or pallet rack is formed by four structural elements 1 at the corners of a unit to be formed. Brackets 15 or 25 are engaged in the holes 8 and also engage shelves. Cross members 28 may also be engaged with the building members 1. <IMAGE>
Patent GB-2041165-A (GB)
Title: Liquid flow control devices
IPC: G05D7/01
Filed: 1979-02-01
Abstract: A liquid flow control device comprises a passage 12 connecting an inlet 11 and outlet 13, and, in said passage, a throttle 21 and a variable restrictor 24. The throttle comprises a fixed port 23 surrounded by a rigid abutment face 22 which confronts the variable restrictor 24. The variable restrictor 24 comprises a flexible resilient member having an aperture 25 therein, which aperture is aligned with the fixed port and interrupts a concave or recessed face 26 which confronts the abutment face 22 and in use, the pressure differential across the variable restrictor caused by a flow of liquid tends to distort the flexible resilient member towards the abutment 22 so that the effective size of the aperture is decreased. <IMAGE>
Patent GB-2025870-A (GB)
Title: Double-track Overhead Conveyors
IPC: E01B25/26
Filed: 1979-04-12
Abstract: The pivoted switch tongue (10) of a points mechanism has an upper surface (9) which is disposed below the plane of the running surfaces (4) of the track portions (11) and lateral guide surfaces 5' engaged by guide wheels 3. Because the tongue (10) is so dimensioned that the length (a) of the gap it bridges over from beneath is equal to or is less than the wheel base (L) of the carriage, the upper surface (9) of the tongue (10) does not need to support the carriage (11), permitting a simpler construction. <IMAGE>
Patent GB-2025392-A (GB)
Title: Process for Preparing N-(1,1- dimethyl-3-oxobutyl)acrylamide
IPC: C07D265/10
Filed: 1979-04-24
Abstract: A process for preparing N-(1,1- dimethyl-3-oxobutyl)acrylamide (also known as diacetone acrylamide) is disclosed which comprises the steps of (1) contacting a dispersion of 5,6- dihydro-6-hydroxy-4,4,6-trimethyl-2- vinyl-1,3(4H)-oxazine sulfate (1:1) in a water-immiscible organic solvent with a neutralizing or alkalizing amount of gaseous ammonia or a concentrated aqueous solution of a sodium- containing alkali to form an ammonium or hydrated sodium sulfate; (2) separating said sulfate; (3) cooling the organic mother liquors recovered from step (2) to about -10 DEG C to 20 DEG C to crystallize N-(1,1- dimethyl-3-oxobutyl)acrylamide therefrom; and (4) recovering the crystals of N-(1,1-dimethyl-3- oxobutyl)acrylamide, washing with a cold water-immiscible organic solvent and drying the same.