baber/WOPTO huggingface dataset:
Patent GB-1291908-A (GB)
Title: Process for the production of methylene bridged polyphenyl polyamines
IPC: C08G12/08
Filed: 1970-09-08
Abstract: 1291908 Methylene-bridged polyphenyl polyamines UPJOHN CO 8 Sept 1970 [20 Oct 1969] 42969/70 Heading C2C Methylene-bridged polyphenyl polyamines containing di-(aminophenyl) methane having a 4,4<SP>1</SP>-isomer content of at least 98% are prepared in a continuous process comprising intimately intermixing at a temperature of 0‹ to 60‹ C. rapidly flowing fluid streams of aqueous aniline and aniline hydrochloride and aqueous formaldehyde in a molar proportion of 4:1 to 1À5:1 at the entry port of a continuous tubular reactor; causing said intermixed fluid streams to flow through the reactor at below 75‹ C. at such; a rate that substantially no backmixing occurs continuously passing the reaction mixture from the exit part of the reactor to a cooling zone in which the reaction mixture is continuously recycled so as to maintain the temperature of the reaction mixture below 60‹ C. but above the temperature at which solid material separates from the mixture; continuously removing the reaction mixture from the cooling zone at a rate corresponding to that at which it is fed in and passing the reaction mixture to a final reaction zone in which its temperature is in the range 60‹ to 120‹ C.; and continuously removing from said final reaction zone a mixture of methylene bridged polyphenyl polyamines at a rate corresponding to that at which the intermediate reaction mixture is passed to the final reaction zone. There may be interposed between the cooling zone and final reaction zone a holding zone where the reaction mixture is maintained at 40‹ to 70‹ C. for an average residence time of 30 to 240 minutes. The polyamine mixture may be phosgenated to the corresponding polyisocyanates.
Patent GB-969924-A (GB)
Title: Device for recording data on a film strip
IPC: G06K1/12
Filed: 1961-12-01
Abstract: 969,924. Data recording apparatus. R. C. HILDEBRANDT. Dec. 1, 1961, No. 42997/61. Heading G2A. A photographic apparatus comprises a camera 40 and a plurality of solid light conductors 14 extending from the film path 12 to lighting means 16 operable in different combinations. In the Figure the light conducting rods 14 terminate in a light shield 10 and the lamps 16 are controlled by switches 18 operated by a conventional code converter 24.
Patent GB-1151516-A (GB)
Title: Improvements in or relating to Travelling-Wave Amplifier Tubes
IPC: H01J23/24
Filed: 1966-09-28
Abstract: 1,151,516. Travelling-wave tubes. SIEMENS A.G. 28 Sept., 1966 [29 Sept., 1965], No. 43209/66. Heading H1D. In a slow wave structure for a travelling-wave tube amplifier constituted by a disc-loaded waveguide, the discs 1 having arcuate coupling slots 4 which are displaced by 180 degrees in successive discs and are provided with radially extending portions at their ends for the receipt of lossy material, the dimensions are chosen to provide a pass-band structure which avoids the production of parasitic oscillations at voltages below the operating voltage, whereby to avoid overloading of the lossy material upon raising the voltage to the operating value. The inner diameter of the waveguide has a value of from 0À3 to 0À45 of the mean operational wavelength #  m  and the ratio of the resonance wavelength of the longest wavelength mode of a cavity defined by two adjacent discs, the resonance wavelength of the coupling apertures, and # m  are 1: 1À60À25:2. Preferably, # m  is double the lower cut-off frequency; the coupling slots have a length of 0À35 to 0À45 # m  and the ratio of radius to length for the cavities formed by adjacent discs lies in the range #1À2 to 10. These dimensions ensure that the structure has a backward fundamental wave, and that the first forward wave exhibits an increase of time delay from the lower cut-off frequency to a region of small dispersion around # m ,followed by a decrease to a value at the upper cut-off frequency at most equal to that at the lower cut-off frequency (Fig. 3, not shown). A modified structure is referred to in which the waveguide is of square cross-section; in which case the internal circumference of the guide should be 0À3 to 0À45 # m .
Patent GB-1508237-A (GB)
Title: Fluid flow control devices
IPC: F16K3/32
Filed: 1975-10-21
Abstract: 1508237 Valves UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 Oct 1976 [21 Oct 1975] 43234/75 Heading F2V A valve comprises two semi-cylindrical members 19, 20 having planar mating surfaces 22, 23 arranged to overlap and to slide over one another, one surface having a groove 26 extending in the direction of sliding and thus defining an orifice at the point of overlap with the other surface, the transverse cross-section of the groove varying along its length so that the size of the orifice decreases as the amount of overlap between the surfaces increases. The members 19, 20 are urged together by resilient internal O-rings 40 in cylindrical spacers 17, 38, 42, which are in turn located in a cylindrical bore 11 in valve body 1. The member 19 is moved axially by a valve stem 60 threadedly engaged with a member (76) to which is keyed a hand wheel (83), Fig. 1 (not shown); alternatively it may be moved by an hydraulic servomotor. The cross-section of the groove 26 is preferably triangular, but may be partcircular or rectangular, and the area may vary continuously (uniformly or otherwise) or the groove may be stepped, each stepped portion having a varying cross-section. The members 19, 20 may be of dissimilar materials, such as hardened steel and leaded bronze respectively.
Patent GB-1010989-A (GB)
Title: Improvements in or relating to copy sheet holders for thermo-copying processes
IPC: G03B27/30
Filed: 1964-10-23
Abstract: 1,010,989. Printing apparatus. WILHELM RITZERFELD, and G. RITZERFELD. Oct. 23, 1964 [Oct. 31, 1963], No. 43249/64. Heading B6C. A copy sheet holder suitable for use in thermocopying comprises a sheet 2 of cardboard covered by layers 1, 3 of transparent polythene or polyvinylchloride, and a layer of polyester or fibreglass fabric 5 secured along one edge 4 to the coated cardboard. The cardboard is preferably coloured yellow and may be coated on one side only with plastic material. In operation, the original, a copy sheet, and a thermo-copy sheet or a thermosensitive ink sheet are placed beneath the cover sheet which is smoothed thereon, and the assembly is passed through the thermo-copying apparatus.
Patent GB-1274072-A (GB)
Title: Synthesis of octadienyl esters
IPC: C07C69/527
Filed: 1969-09-03
Abstract: 1,274,072. Octadienyl esters. UNION CARBIDE CORP. 3 Sept., 1969 [4 Sept., 1968], No. 43609/69. Heading C2C. Octadienyl or substituted octadienyl esters are prepared by reacting a 1,3-conjugated acyclic diolefine with a carboxylic acid in the presence of a palladium or platinum catalyst and a tertiary amine with a basicity constant Kb greater than 10<SP>-7</SP>. Acids specified are aliphatic monocarboxylic, cycloalkane, aromatic, ethylenically unsaturated and the acid esters and acids of dicarboxylic acids, and the dienes include butadiene, isoprene, piperylene and 1,3-hexadiene. Tertiary amines suitable are trimethyl, triethyl, triisopropyl and tributylamines, N-methylmorpholine, 2-dimethylaminoethanol, 2-dimethylaminoethylacetate, 2 - diethylaminoethanol, methyldiethanolamine, triethanolamine, 3-dimethyl amino-1-propanol, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl-1,3-propandiamine, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl-1,3-butanediamine, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethylethylene diamine and triethylene diamine. The reaction may be in a homogeneous liquid phase and palladium and platinum compounds such as alkanoates, cycloalkanecarboxylates, aryl carboxylates, olefine complexes, alkyl and aryl nitrite complexes, salts and complex salts, complexes with trihydrocarbylphosphines and arsines, phosphates and phosphites and bidentate ligands are listed. Catalyst modifiers may also be present and include trihydrocarbylphosphines, -arsines, and -phosphites and mixtures thereof; compounds such as diethyloxyphenylphosphine, ethoxy diphenylphosphine; and bicyclic phosphites. The catalysts may be formed in situ. Examples describe butadieneacetic acid telomerizations to yield octatriene, 3-acetoxy-1,7-octadiene, and 1-acetoxy-2,7-octadiene using various catalysts with various tert. amines; butadiene with isobutyric and propionic acids, benzoic acid, acrylic acid, and phthalic acids. 1-Octa-2,7-dienyl acrylate and 3-octa-1,7- dienyl acrylate are novel compounds prepared by this process.
Patent GB-1478522-A (GB)
Title: Acrylic interpolymer coating compositions
IPC: C08F220/10
Filed: 1974-10-09
Abstract: 1478522 Acrylate/methacrylate/carboxylic acid interpolymers; coating compositions GOODYEAR TIRE & RUBBER CO 9 Oct 1974 [2 Nov 1973] 43687/74 Headings C3B and C3P A coating composition comprises at least one curing agent and an acrylic interpolymer prepared by the polymerization of a monomeric mixture consisting of (1) 0-50 wt. per cent of a vinyl aromatic hydrocarbon, (2) 20-88 wt. per cent of a methacrylic acid ester, (3) 10-40 wt. per cent of an acrylic acid ester and (4) 2-20 wt. per cent of an olefinically unsaturated carboxylic acid of 1-3 carboxyl groups wherein the polymer has a second order (i.e. glass) transition temperature of 30-80‹ C., said coating composition being free of added flow control agent. The interpolymer is preferably prepared by emulsion polymerization in the presence of an emulsifying agent, an initiator and a chain transfer agent or modifier. Coating compositions preferably comprise 50- 92% by weight of acrylic interpolymer in admixture with 50-8% by weight of at least one curing agent selected from di- and multifunctional epoxides. Preferred epoxides are obtained by the reaction of epichlorohydrin or an equivalent 1,2-epoxy compound with at least one compound selected from polyhydric phenols, glycerol, polyglycols, novalac resins and polynuclear polyhydroxy phenols (especially epichlorohydrin reacted with 2,2-bis-(p-hydroxyphenyl)propane). In the examples, the polymer is derived from styrene, methyl methacrylate, n-butyl acrylate, methacrylic acid (optionally with acrylic acid) and mixed with (3)-(4), (6)-(8) a solid diglycidyl ether bisphenol A (DGEBA), (5) a liquid DGEBA. The mixtures also comprise titanium dioxide, and in (8) titanium dioxide, calcium carbonate, carbon black and cadmium-based yellow pigment.
Patent GB-1073739-A (GB)
Title: Electrohydraulic system and working fluids therefor
IPC: G10K15/06
Filed: 1964-10-27
Abstract: 1,073,739. Bending; forging; stamping; perforating. GENERAL ELECTRIC CO. Oct. 27, 1964 [Nov. 13, 1963], No. 43846/64. Headings B3E, B3H, B3Q and B3W. [Also in Division H1] The working fluid in an electrohydraulic spark discharge system (see Division H1), comprising apparatus producing a high-energy pressure wave in a fluid for the working of metals, is a dielectric -liquid containing substantially insoluble electrically conducting particulate solids, preferably metallic. The prior use of water or hydrocarbon oil as the dielectric liquid and of aqueous salt solution as the working fluid is referred to. The working fluid may be circulated by a pump. Reference is made to the bending, forging and perforating of metals.
Patent GB-1005798-A (GB)
Title: Time-division multiplex digital computer
IPC: G06F9/48
Filed: 1963-11-06
Abstract: 1,005,798. Electronic computers. KABUSHIKI KAISHA HITACHI SEISAKUSHO. Nov. 6, 1963 [Nov. 9, 1962], No. 43855/63. Drawings to Specification. Heading G4A. A serial-mode digital computer operates in time-division multiplex, the storage registers (e.g. buffers, address registers, accumulators) being dynamic. As described, two channels have interleaved (alternate) bits in a doublelength word cycle, but addressing of a matrix store, and read-out and write-in is effected by splitting this cycle into two equal parts. The computer is illustrated schematically and the necessary timing and control waveforms are illustrated.
Patent GB-1016446-A (GB)
Title: Improvements in or relating to the manufacture of sector-shaped conductors for electric cables
Inventor: BASKWELL JOHN ALFRED
IPC: H01B13/02
Filed: 1962-11-21
Abstract: 1,016,446. Twisting. PIRELLI GENERAL CABLE WORKS Ltd. Nov. 20, 1963 [Nov. 21, 1962, No. 43975/62. Heading B3E. . A method of imparting helical lay to a straight sectoral conductor in which the conductor is drawn from one to the other of a drum 2 mounted for rotation on a cradle 1 being rotated in a plane containing the axis of the drum, and a device such as a capstan 4 which engages the conductor so as to prevent rotation thereof in a plane at right-angles to the conductor axis. The drum 2 is mounted on a gear-driven rotatable cradle 1 mounted on supports 7, 9 and a hollow guide-shaft 8 which supports one end of the cradle 1 and a fitting 11. A pair of adjustable rollers 5 define an aperture corresponding to the cross-section of the conductor. In use the conductor 3 is drawn from the drum and through the guide-shaft 8 and rollers 5 by the capstan wheel 4 whilst the cradle 1 is rotated. The engagement of the conductor with the capstan prevents rotation of the former about its axis and the drawing thereof by the cradle ends as the conductor emerges from the rollers 5. In a modification the drum is provided with a driving and traversing mechanism, and the conductor is fed in the reverse direction to be wound. The conductor may be subsequently fed to a plastics extrusion or paper lapping insulating machine.
Patent GB-942704-A (GB)
Title: Junction device for electrical cables
Inventor: SMALL GEORGE ROBERT
IPC: H02G3/06
Filed: 1961-12-08
Abstract: 942,704. Two-part couplings. BRUCE PEEBLES & CO. Ltd. Dec. 8, 1961, No. 44107/61. Heading H2E. A junction device for two electric cables comprises an insulating sleeve and a contact member for connection to one of the cables, the contact member being supported within the sleeve. A similar contact member is also provided for the other cable which is to be connected to the first. As described, a contact member 3 with an enlarged head is sealed within an epoxy resin sleeve 5 by means of an annular steel ring 15, the sleeve in turn being held in an aperture in a base wall 11 by means of a fastening ring 12 engaging an external flange 13 of the sleeve and bolted to the base wall. The other contact member 4 with an enlarged head 17 is held against the contact member 3 with the head abutting inside the sleeve 5, by means of a clamping ring 16 engaging the head 17 and bolted to the steel collar 15. The cooperating faces of the contact members being concave for one and convex for the other to facilitate good electrical connection. Bared ends of cables 1 and 2 are soldered to the contact members 3 and 4 respectively. The space in the base wall containing the contact members is made waterproof by enclosing the space with an epoxy resin cover 6, having a collar 19 and a hollow hemispherical part 6 with an integral skirt 7 the collar being slidingly sealed over a part of the cable 2 which has a sealed insulating bushing 18, and the cover 6 being fixed to the base wall by means of a steel clamping ring 23 engaging an external flange 24 of the cover and bolted to the base wall. A waterproof sealing gasket 26 is interposed between the flange 29 and the base wall.
Patent GB-968862-A (GB)
Title: Production of polyethylene with caprylyl peroxide catalyst
IPC: C08F10/00
Filed: 1960-12-23
Abstract: A process for polymerizing ethylene comprises continuously passing ethylene into a first reaction zone at 130 DEG  to 190 DEG C. and a pressure of at least 500 atmospheres and partially polymerizing in the presence of caprylyl peroxide as catalyst, passing the resulting mixture into a second reaction zone at 190 DEG  to 270 DEG C. and a pressure of at least 500 atmospheres and polymerizing residual ethylene, optionally in the presence of an organic peroxide other than caprylyl peroxide (in particular di-t-butyl peroxide).  The polymerization may be in the presence of a chain transfer agent, many of which are specified. The polyethylene obtained may be drawn into film of high transparency.
Patent GB-1440216-A (GB)
Title: Derivatives of penam-3-carboxylic acid and cephem-4-carboxylic acid and processes for their manufacture
IPC: C07D499/44
Filed: 1973-09-21
Abstract: 1440216 Cephalosporin and penicillin derivatives CIBA-GEIGY AG 21 Sept 1973 [29 Sept 1972 14 March 1973 24 May 1973] 44344/73 Heading C2C Novel compounds I (in which -S-A- represents a radical Ia or Ib wherein R 3  is a free or therapeutically usable esterified carboxyl group and R 4  is H, 1-6C alkoxy, or optionally substituted methyl; R 1  and R 2 , if separate, are H and optionally substituted phenyl, thienyl or furyl respectively, or, if together, form with the attached carbon atom an optionally substituted cycloalkylene ring or 4-7C ; m and n are 0 or 1; and B represents an optionally substituted 2,6-di(oxo or thioxo) - 1,2,3,6 - tetrahydropyrimidyl, 2- thioxo - 6 - oxo - 1,2,3,6 - tetrahydropyrimidyl, 2,6 - diaminopyrimidyl, 2 - amino - 6 - hydroxypyrimidyl or 2,6 - dihalopyrimidyl, such a radical being bound in the 4- or 5-position) and salts thereof are prepared by methods known per se, e.g. by reaction of a compound II with a compound III or a reactive derivative thereof, or by reaction of a compound II<SP>1</SP> with a compound III<SP>1</SP> or a reactive derivative thereof. Pharmaceutical compositions, useful as antibiotics, comprise a compound I or a suitable ester or salt thereof together with a suitable diluent or carrier.
Patent GB-1190069-A (GB)
Title: Bonding Olefin Polymers and Metals
Inventor: REICHERDT WALTER
IPC: H05K1/03
Filed: 1967-09-29
Abstract: 1,190,069. Metal - resin laminates. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. 29 Sept., 1967, No. 44384/67. Heading B5N. [Also in Division C3] Polyolefins and their copolymers are bonded to metals with the use of peroxides of general formula wherein R 1  and R 2  are hydrogen, alkyl radical or C 1 -C 20  aralkyl radicals, R 3  is hydrogen or an alkyl or aralkyl radical, and X is either R 4  (an alkyl or aralkyl radical) or one of the substituents -C(OOR 3 )R 1 R 2 , -C#CR 4 , -C#C-C(OOR 3 )R 1 R 2 , -(CH 2 ) n -C#CR 4  or -(CH 2 ) n -C#C-C(OOR 3 )R 1 R 2 , n being 1, 2, 3 or 4, by either (i) mixing the polyolefin and peroxide at an elevated temperature before application to the metal, or (ii) applying a peroxide solution or dispersion to one or both of the surfaces to be bonded; in both cases the bond is thereafter formed by pressing at elevated temperature. Peroxides can be combined with polyolefins by mixing therewith at up to 200 C. in amount 0À1-10% by weight and thereafter extruding to form a film. If peroxide is applied as a solution or dispersion to preformed surfaces a polyolefin of molecular weight 5000-30,000 can be present. Pressing may take place at 160-220 C. Other specified additives may be present. The peroxide causes cross-linking of the polyolefin. Specified polyolefins are polyethylene, polypropylene and butadiene polymers. The metal may be copper, iron or aluminium. Peroxides mentioned in examples are 2,5-dimethyl-2,5- di - (tert - butylperoxy) - hex - 3 - yne and 2,7- dimethyl - 2,7 - di - (tert - butylperoxy) - octa- 3,5-diyne.
Patent GB-928705-A (GB)
Title: New monoazo pigment dyestuffs and process for their manufacture
IPC: C08K5/23
Filed: 1961-12-12
Abstract: Polyvinyl chloride compositions are coloured in red shades with monoazo pigments, free from water-solubilizing groups, of formula <FORM:0928705/IV(a)/1> wherein R1 is a benzene residue bound in 1-position to the azo linkage and in the 3-position to the carbonyl group and contains in the 6-position a halogen atom or an alkoxy, phenoxy or nitro group, R2 is a naphthalene residue to which the azo linkage, the hydroxyl group and the -CONH- group are bound in the 1-, 2- and 3-positions respectively, X and Y each represent a halogen atom or an alkyl group and when X is a halogen atom Y may also be an alkoxy group and the benzene residue B may be further substituted (see Group IV(c)).  In an example polyvinyl chloride, dioctyl phthalate and a dye of formula <FORM:0928705/IV(a)/2> are mixed and rolled to give a scarlet-red foil.ALSO:The invention comprises monoazo dyes free from water-solubilizing groups and of formula <FORM:0928705/IV(a)/1> wherein R1 is a benzene residue bound in 1position to the azo linkage and in the 3-position to the carbonyl group and contains in the 6position a halogen atom or an alkoxy, phenoxy or nitro group, R2 is a naphthalene residue to which the azo linkage, the hydroxyl group and the -CONH- group are bound in the 1-, 2- and 3-positions, respectively, X and Y each represent a halogen atom or an alkyl group and when X is a halogen atom, Y may also be an alkoxy group and the benzene residue B may be further substituted. The dyes are prepared by condensing 1 mol. of a dicarboxylic acid halide of formula <FORM:0928705/IV(a)/2> with 2 moles of an amine of formula <FORM:0928705/IV(a)/3> The dyes are used as pigments to colour organic materials such as viscose, cellulose ethers and esters, polyamides, polyesters and polyurethane in the spinning mass and lacquers and natural and synthetic resins, in particular polyvinyl compounds (see Group IV(a)) in red shades.  The preparation of a number of dyes is specified in examples.
Patent GB-1063450-A (GB)
Title: Process for preparing dihydrostreptomycins
IPC: C07H15/238
Filed: 1965-10-20
Abstract: Dihydrostreptomycin or dihydro-hydroxystreptomycin are prepared by adsorbing streptomycin or hydroxystreptomycin on a solid matrix of carbon or a cation exchange resin to form an adsorbate, treating said adsorbate with at least one equivalent of sodium borohydride, potassium borohydride, lithium borohydride, sodium trimethoxyborohydride or lithium trimethoxyborohydride in water at pH 8 to 11, and recovering the dihydro compound by elution from the adsorbate with aqueous acid. The cation exchange resin may be a carboxylic or sulphonic acid cation exchange resin. Adsorption is from aqueous solutions including whole fermentation broths containing the streptomycin or hydroxystreptomycin.
Patent GB-1391173-A (GB)
Title: Amti-radar system
IPC: G01S13/534
Filed: 1967-10-02
Abstract: 1391173 Pulse-echo target detection NORTH AMERICAN ROCKWELL CORP 2 Oct 1967 [26 Oct 1966] 44829/67 Heading H4D A non-coherent Doppler processor in, e.g. an airborne moving-target indicating system, is automatically switched to afford a clutter-free signal in response to target signals detected in the presence or absence of substantial clutter. The processor as described is as in Specification 1,120,293 and is connected to filters 12, 14 and 16 having the respective responses 26, 27 and 25 of Fig. 3(c): when substantial clutter is not present in a given range bin the signal at terminal 11 is a narrow band-pass low-frequency signal and there is no output from filter 14 or from filter 16; transmission to output terminal 19 is then via normally-open gate 13. If filter 16 provides a signal above a predetermined threshold, i.e. substantial clutter is present, gate 13 is closed and a gate 15 is opened. A spatial discriminator 20 comprises a tapped delay line (28, Fig. 2, not shown), and an AND gate (29), to determine a zero-frequency signal component having a duration of at least several transmitted pulse widths; this provision is useful when a radar is mounted on a helicopter temporarily hovering. The system may be a radar, sonar or laser type.