baber/WOPTO huggingface dataset:
Patent GB-987278-A (GB)
Title: Improvements in and relating to the production of esters
Inventor: CLARK Duncan
IPC: C07C67/05
Filed: 1962-11-12
Abstract: Esters are prepared by reacting a compound R.CH = CH.CH(R1)X in which R is hydrogen or alkyl, R1 is hydrogen or alkyl and X is chloride or acyloxy, with a solution containing a carboxylic acid, a palladous salt, a cupric salt, a metal halide, other than a fluoride, and less than 25% by weight of water.  Molecular oxygen, e.g. as air, may be passed through the reaction mixture to regenerate the catalyst. Allyl acetate, which gives glyceryl esters, particularly di- and tri-acetates when acetic acid is used, allyl chloride which gives mono- and di-acetates of 1:2 - dihydroxy - 3 - chloropropane, crotylacetate, and 3-acyl-oxybut-1-ene which give di- and tri-acetates of n-butane-1 : 2 : 3-triol, and crotyl chloride which gives mono- and diacetates of 2 : 3-dihydroxy - 1 - chlorobutane are mentioned.  A metal carboxylate, e.g. of lithium or copper corresponding to the free carboxylic acid used may be included in the reaction mixture to reduce any induction period. By-products may be formed, e.g. when allyl acetate is used in addition to glyceryl acetates, diacetates of 1 : 2-di-hydroxy-3-chloropropane and 1 : 3 - dihydroxy - 2 - chloropropane are formed and glycerol is formed by hydrolysis of the mixture.  Other by-products are the acetate of hydroxy-acetone, acrolein, and a -, b - and g -acetoxy allyl acetate. Examples describe the preparation of glyceryl di- and tri-acetates.
Patent GB-971596-A (GB)
Title: Flame-retardant polyolefin compositions
IPC: C08L23/02
Filed: 1961-12-04
Abstract: A flame-retardant composition comprises 10.0-70.0% chlorinated polyethylene containing 40% of chlorine, 0.5-10% of butyl rubber, chlorosulphonated polyethylene or polyisobutylene, and the remainder a homopolymer of an aliphatic alpha-mono-olefine, e.g. polyethylene or polypropylene. Pigment, e.g. carbon black, or a red or blue dye may be added.  The composition may be used as an insulant for electric cables, or as a pipe or moulded article.
Patent GB-1503338-A (GB)
Title: Methods of and apparatuses for measuring temperature and evaluating its effects on a process
IPC: G06F19/00
Filed: 1975-10-22
Abstract: 1503338 Process temperature measurement FELTEN & GUILLEAUME CARLSWERK AG 22 Oct 1975 [30 Nov 1974] 43369/75 Heading H3M The temperature in a process is measured and converted into digital form, the value is weighted in accordance with its effect on the process and the weighted codes are then summed. The a-to-d converter of the embodiment comprises a binary counter 2 which controls the increase of a reference current Iv from an initial value Ivo until a comparator U D  shows the voltage dropped across measuring resistor R TH  and reference resistor Rv is equal. The count in counter 2 is then an indication of the temperature of R TH  above reference Rv. The digital values are stored and passed to a code converter when the measurement series is finished. The code converter may be a calculator or comprise a read-only memory and the sum may be displayed in digital form or on an analogue recorder. The measuring and storing may take place in the process environment, e.g. food sterilization, and the summing under normal conditions.
Patent GB-1019915-A (GB)
Title: Process for making polyethylene antistatic
IPC: C08J7/044
Filed: 1962-11-16
Abstract: Polyethylene is made antistatic by surface treatment with or incorporation of 0.5-10% of one or more alkylaryl-ethylene or -polyethylene glycols, i.e. <PICT:1019915/C3/1> where Ar is an aromatic mono- or poly-nuclear hydrocarbon radical, R is a multi-branched alkyl radical, x is the number of R's, Q is a C1- 4 alkyl or iso-alkyl group different from R, or an alkoxyl, amino, nitro, carboxyl, carboxylic ester, sulphonic acid or sulphonic acid ester group or halogen atom, y is the number of Q's, n is 1-3000 and z the number of the glycol chains, the sum of x+y+z being at most equal to the number of substitutable hydrogen atoms of Ar.  One or more other antistatic substances may also be present, e.g. ethylene, propylene or butylene glycols of a degree of polyetherification of 1-3000 or their mono- or di-ethers or -esters or ether esters, or compounds consisting of two or more alkylene or polyalkylene glycol chains attached by way of hydrocarbon radicals having at least 5 carbon atoms or carboxylic, hydroxy- or di-carboxylic or carbonic acid radicals, whose terminal hydrogen atoms are, if desired, wholly or partly replaced by hydrocarbon or acyl radicals.  The alkyl aryl glycols may be obtained by alkylation of a phenol with an oligomer, e.g. dimer, trimer or tetramer of propane, butene, isobutene, butadiene and/or isoprene and subsequent ethoxylation. A large number of polyalkylene glycols and their ester derivatives are exemplified. The polyethylene may be formed into sheets.
Patent GB-1120251-A (GB)
Title: A self-locking threaded element
Inventor: COYLE JAN ROBERT
IPC: F16B39/34
Filed: 1965-10-13
Abstract: 1,120,251. Machine tool details. TORKON FASTENER CORP. 13 Oct., 1963, No. 43467/65. Headings B3B and B3T. [Also in Division F2] A deformable insert for locking a threaded element, see Division F2, e.g. of nylon, is machined from a hexagonal rod 32, and a groove 30 is cut by a tool 33. After the insert is disposed in the element its outer surface (36), Fig. 8, not shown, is turned to the contour of the thread crests.
Patent GB-982375-A (GB)
Title: Improvements in apparatus for heating bearing assemblies
Inventor: BROWNING ROY WILLIAM
IPC: F16C17/24
Filed: 1962-11-19
Abstract: 982,375. Bearings. BROWNINGS ELECTRIC CO. Ltd. Nov. 6, 1963 [Nov. 19, 1962], No. 43635/62. Heading F2A. An apparatus for heating bearing assemblies comprises a tank for holding oil, means for heating the oil, and a removable carrier for supporting the bearing assembly; the carrier being supported so as to immerse the bearing assembly in the oil and then supported above the oil so as to allow oil to drain away from the bearing assembly. The tank has a cylindrical shell 10, a bottom 11, legs 10a, carrying handles 12, and a lid 14 which is received by a flanged rim 13 of the shell 10. Electrical heating means are housed in the lower portion of the tank and include a thermostatic switch and signal lamps. The carrier comprises a percolated flanged tray 29 having legs 30 which are supported as shown in Fig. 2 by the bottom 11 of the tank, and having handles 32 atttached by brackets 31. The carrier is supported in the upper portion of the tank on rests 33 which are attached thereto and the tray 29 is provided with open slots which allow the carrier to be moved vertically past the rests 33 when it is removed from the tank.
Patent GB-1486039-A (GB)
Title: Atmospheric leaching of matte containing iron
IPC: C01G53/10
Filed: 1975-10-27
Abstract: 1486039 Leaching nickeliferous matte AMAX Inc 27 Oct 1975 [26 Dec 1974] 44161/75 Heading C1A Nickeliferous sulphide matte containing by weight 20-75% Ni, 5-50% Cu, 4-20% S, and 0À5-20% Fe, the sum of the Ni, Cu and S contents being at least 80% of the matte composition, and the sulphur content being less than required to stoichiometrically combine with the metal values in the matte and not more than the amount required to combine with the Ni and Ni 3 S 2  is prepared as a granulated product by quenching a melt thereof from a temperature at least 10 C. above its liquidussolidus temperature and below its boiling point, and is then comminuted, subjected to a first atmospheric leaching with a spent copper electrolyte containing sufficient H 2 SO 4  to give a pH of up to 2 while aerating with air until the pH of the solution reaches 3À5 to 4À5, further subjected to a second atmospheric leaching in said spent electrolyte by adding to the matte, or replacing said air with, oxygen MnO 4 <SP>-1</SP>, or S 2 O 8 <SP>2-</SP> until the pH rises to over 5 to form a nickel-containing solution and a nickel-copper residue, which is separated from the solution and subjected to a sulphuric acid leaching step at elevated temperature and pressure to recover metal values therefrom. The matte may be subjected to a sulphuric acid pre-leach at pH 1-3 to remove iron therefrom following the comminution step.
Patent GB-939442-A (GB)
Title: Reactor for direct current with alternating current superimposed on the direct current
IPC: H01F37/00
Filed: 1961-12-12
Abstract: 939,442. Inductors. ALLMANNA SVENSKA ELEKTRISKA A.B. Dec. 12, 1961 [Dec. 13, 1960], No. 44375/61. Class 38 (2). An inductor for direct current with superimposed alternating current consists of a winding 1 (Figs. 3 and 4) which may be mounted on either a non-magnetic support or on a core leg of laminated plates, and core parts 2, 3 the part 3 nearest the winding being of laminated magnetic material and dimensioned for at least the alternating component of magnetic flux and the part 2 situated outside of the laminated plates away from the winding being of ordinary structural steel or comparable magnetic material and dimensioned for the major part of the direct component of magnetic flux. The laminated portion of the core may be provided with air gaps 5 or 6 and short circuited copper rings 7 may be inserted in the solid part of the core.
Patent GB-1408114-A (GB)
Title: Semi-conducting polymer compositions
IPC: C08L33/02
Filed: 1973-09-25
Abstract: 1408114 Semi-conducting polymer compositions UNION CARBIDE CORP 25 Sept 1973 [26 Sept 1972] 44904/73. Heading C3P Semi-conducting compositions comprise (1) a copolymer of ethylene with 2 to 5 weight per cent of ethyl acrylate or vinyl acetate, (2) 3 to 20 weight per cent of an ethylene/propylene/ termonomer elastomer and (3) 25 to 50 weight per cent of conducting carbon black. The termonomer from which the elastomer is derived may be 1,4 - hexadiene, dicyclopentadiene, methylcyclopentadiene or 5 - ethylidene bicyclo[2.2.1]hept-2-ene. The carbon black may be an oil furnace or acetylene black. The compositions may also contain conventional ingredients and may be used as insulation shielding compositions for power conductors.
Patent GB-1160073-A (GB)
Title: Improvements in or relating to Liquid Polymers
IPC: C08G65/334
Filed: 1966-10-07
Abstract: 1,160,073. Thiol terminated polyoxyalkylene polyols. DIAMOND ALKALI CO. 7 Oct., 1966, No. 44950/66. Headings C3B and C3R. A thiol-terminated liquid polyoxyalkylene polyol is obtained by the interaction of: (a) a hydroxy terminated liquid polyoxyalkylene polyol of formula wherein G is a polyvalent radical obtained by removing the active hydrogen from a polyhydric initiating compound which is either an amine or an alcohol of functionality 3 to 7 with respect to the active hydrogen and having less than 7 carbons, R is hydrogen, an alkyl or halogen substituted alkyl group having one to four carbons or a phenyl group, x is an integer such that the molecular weight of the polyol is at least 400, n is an integer from 3 to 7, and either (b) an episulphide of formula wherein R 1 , R 2 , R 3  and R 4  are the same or different and each represents hydrogen or an alkyl group having 1 to 4 carbons, (c) a thiol substituted organic acid of formula H-SÀCHRÀ (CH 2 ) n COOH, wherein R is hydrogen or an alkyl group having 1 to 4 carbons and n is zero or an integer of from 1 to 4, or a methyl or ethyl ester thereof or (d) epichlorohydrin to give an intermediate polymer which is then chemically altered, e.g. by reaction with hydrogen sulphide or sodium hydrosulphide, to the final product. The monomer reactant (b) to (d) is used in at least an equivalent amount based on the number of functional groups contained in the monomer. The polyoxyalkylene polyols are alkylene oxide derivatives of polyfunctional alcohols and amines. Commonly used alkylene oxides include those of ethylene, propylene and butylene, and initiating alcohols and amines commonly used are pentaerythritol, sorbitol, mannitol, trimethylol propane, 1,2,6-hexanetriol, glycerol and ethylene diamine. Preferably the polyol starting materials constitute a condensation product of an alkylene oxide having 2; 3 or 4 carbons and 0À01 to 16À5 mole per cent, based upon the oxide, of a polyhydric alcohol having less than 7 carbons and having 3 to 6 hydroxy groups, at least 40% of the oxide having more than 2 carbons. Reactants specified under heading (c) include thioglycolic and betathiol propionic acids, methyl thioglycolate and ethylene bis-thioglycolate. The examples describe curing of the thiol terminated polyols by (i) oxidation, wherein the thiolic polyol is mixed with calcium carbonate, tetramethyl thiuram disulphide and also, in some examples, triethylene diamine and blending this mixture with manganese dioxide and an inert plasticizer and (ii) using the thiol-terminated polyol as a co-reactant, or copolymer with epoxy resins to effect a cure.
Patent GB-1426862-A (GB)
Title: Dial and pointer indicator means of measuring instruments
IPC: G01D13/00
Filed: 1973-02-28
Abstract: 1426862 Load measurement; indicating measured values SNAP-ON TOOLS CORP 28 Feb 1973 45080/75 Divided out of 1423461 Headings G1J and G1W An instrument such as a torque wrench for measuring loads applied in either of two opposite directions comprises a rotatably adjustable graduated circular scale 10 having separate sectors graduated in opposite angular directions, and a pointer 22 which rotates in an angular direction dependent on the direction of load application and which has a pair of arms co-operable with respective graduated sectors to provide measurement readings for loads applied in each direction, the pointer (22) being driven via a friction coupling (not shown) allowing its angular setting to be adjusted independently of the instrument movement, and the dial having an abutment such as a pin 21 lying in the path of the pointer to engage the pointer when either arm is set to zero whereby when the dial is rotated in either direction the pin 21 can automatically zero either arm. The pin 21 may as shown be adjacent the zero graduation or, as in Figs. 2 and 3 (not shown) spaced by 180 degrees therefrom, the arms in both cases having notches 25, 26 to engage the pin 21.
Patent GB-1588242-A (GB)
Title: N-(tetrazol-5-yl)-salicylamide derivatives
IPC: C07C65/40
Filed: 1977-10-28
Abstract: New derivatives of N-(5-tetrazolyl)benzamide are described which have the formula below in which R<1> = halogen, alkyl, alkoxy, alkylthio, alkylsulphonyl, alkylamino, alkylsulphamoyl, dialkylsulphamoyl, dialkylamino, dialkylcarbamoyl, alkoxycarbonylamino, alkylcarbamoyl, alkanoylamino, hydroxyl, nitro, trifluoromethyl, aryl, benzyloxycarbonylamino, amino, sulphamoyl, 5-tetrazolyl, carboxyl or carbamoyl, n = 0, 1 or 2, R<2> = H, alkyl or aryl, and R<3> = H, alkyl, phenylalkyl, or substituted or unsubstituted aryl. Applications for the treatment of respiratory disorders, especially allergic bronchial asthma. <IMAGE>
Patent GB-1097553-A (GB)
Title: An acylated amino alcohol, process for its preparation and pharmaceutical compositions containing it
Inventor: PESSON MARCEL
IPC: C07D333/22
Filed: 1965-10-27
Abstract: The novel 1 - phenyl - 2 - (2 - thienyl) - 2 propionyloxy - 3 - methyl - 4 - dimethylaminobutane and its acid addition salts are prepared by reaction of propionic anhydride with the mixture obtained by the reaction of a benzyl magnesium halide with 1-(2-thienyl)-1-oxo-2-methyl - 3 - dimethylamino - propane, and, if desired, salification of the product.  The compounds of the invention are analgesics and may be made up into pharmaceutical compositions for oral or parenteral administration. The maleate salt is preferred.
Patent GB-1066902-A (GB)
Title: Improvements in or relating to the phosphate bonding of refractory products
Inventor: GRIMSHAW REX WILLIAM
Filed: 1962-12-04
Abstract: A refractory composition includes a calcined high alumina ingredient of a selected mixed grain size combined with phosphoric acid, and some ball clay, the alumina ingredient including sufficient finely ground material to give optimum packing and a greater surface area for chemical reaction to produce alumina phosphate throughout the composition.  The ball clay lubricates the grains for optimum packing.
Patent GB-1460546-A (GB)
Title: Branching arrangements in optical communications transmission links
IPC: H04B10/29
Filed: 1975-11-04
Abstract: 1460546 Optical fibre couplings SIEMENS AG 4 Nov 1975 [29 Nov 1974] 45839/75 Heading G2J A coupling between an incoming optical glass fibre 1 and a plurality of outgoing optical glass fibres 6 is effected by overlapping exposed ends of the glass cores 2, 5 of the fibres 1, 6, enveloping the overlapping portions in a common casing 7 of a material having a refractive index lower than that of the glass cores, and filling the spaces between the overlapping portions of the cores with a material having a refractive index substantially equal to that of the cores. The casing 7 and the filling between the cores may be copolymers of hexafluoro-propane and vinyl fluoride.
Patent GB-1181460-A (GB)
Title: Rotary Positive Displacement Fluid Compressor
Inventor: GARDNER JOHN WILLIS
IPC: F04C18/16
Filed: 1967-10-09
Abstract: 1,181,460. Making rotors; soldering. J. W. GARDNER. 9 Oct., 1967 [28 Oct., 1966], No. 46065/67. Headings B3A and B3R. [Also in Division F1] A rotary positive-displacement compressor has intermeshing rotors 10, 12 with helical lobes 16 and grooves 18, respectively, of non-uniform helical-pitch, each rotor being formed by a stack of plates 30 of desired profile mounted upon a core 32 such that they are displaced angularly relative to one another to establish said lobes or grooves. The plates may be united by either heating them to the melting temperature thereof or coating the stack with a silver-based alloy, which while being applied, or when the stack is heated, flows between the plates due to capillary action. The rotors may be rendered smooth by coating them with an epoxy resin, tin or a metal alloy while being rotated slowly in mesh with each other.
Patent GB-1395666-A (GB)
Title: Thiophene derivatives processes for their preparation and compositions incorporating them
IPC: C07D333/22
Filed: 1973-10-03
Abstract: 1395666 Benzoylthiophene derivatives ROUSSEL-UCLAF 3 Oct 1973 [5 Oct 1972] 46090/73 Heading C2C Novel benzoylthiophene derivatives of the general formula wherein each of R<SP>1</SP> and R<SP>3</SP> is a hydrogen atom or methyl group, R<SP>2</SP> is a hydrogen atom or C 1-18  carboxylic acyl group and X is a hydrogen or halogen atom or a methoxy, methyl, trifluoromethyl or trifluoromethoxy group, are prepared (a) when R<SP>2</SP> is a hydrogen atom, by hydrolysing the corresponding ketal and (b) when R<SP>2</SP> is an acyl group, by esterifying the product of (a). The ketal may be prepared by reducing the corresponding carboxylic acid or C 1-5  alkyl ester thereof (itself prepared by ketalizing the corresponding ketone). Pharmaceutical compositions having antiinflammatory and analgesic activity comprise, as active ingredient, at least one benzoylthiophene of the above general formula, in association with a suitable pharmaceutical vehicle.
Patent GB-1019420-A (GB)
Title: Organic moderated nuclear reactor and control method therefor
IPC: G21C5/12
Filed: 1964-11-12
Abstract: 1,019,420. Nuclear reactors. COMBUSTION ENGINEERING Inc. Nov. 12, 1964 [Dec. 27, 1963], No. 46211/64. Heading G6C. A hydrocarbon moderated nuclear reactor is controlled by diluting the hydrocarbon moderator with a quantity of fluorocarbon and/or deuterated hydrocarbon such that the reactor is just critical and increasing the ratio of hydrocarbon to diluting material during operation to increase the moderating power and maintain criticality. Suitable hydrocarbon moderators are diphenyl and mixtures of diphenyl and terphenyl while a suitable fluorocarbon diluent is decafluorodiphenyl. Other suitable diluents are the fluorocarbon analogues of benzene, naphthalene and terphenyl, also deuterated diphenyl. A reactor is described in which the core contains fertile material as well as fissile material and at the commencement of a fuel cycle when the moderating effect is reduced, the excess neutrons which are fast neutrons contribute to the conversion of the fertile material. The higher the conversion ratio, the lower the net depletion rate of the fuel and the longer the reactor can be operated before refuelling is necessary. As the mixture of hydrocarbon and diluent is removed via one conduit for disposal or reprocessing, the pure hydrocarbon is introduced via another conduit so that the replenishing of the spent moderator is accomplished at the same time as the moderating power is increased.
Patent GB-1446477-A (GB)
Title: Valve
IPC: F16L27/08
Filed: 1973-10-04
Abstract: 1446477 Pipe couplings; valves BRAUKMANN ARMATUREN AG 4 Oct 1973 [4 Oct 1972] 46468/73 Headings F2G and F2V A thermostatic radiation valve having an adjuster knob 7, is formed with a swivel coupling 4 so that, on installation, the valve body can be turned to point the knob in any direction about the swivel axis.
Patent GB-1273049-A (GB)
Title: Improvements in or relating to active two-terminal networks
IPC: H04B3/44
Filed: 1969-09-22
Abstract: 1,273,049. Repeater supplies. SIEMENS A.G. 22 Sept., 1969 [23 Sept., 1968], No. 46519/69. Heading H4R. [Also in Divisions G3 and H2] A two-terminal network suitable for the suppression of A.C. components induced into D.C. supply circuits comprises a matched pair of complementary transistors TS3, TS4 each controlled by a differential voltage produced in the respective base-emitter circuit by a Zener diode and an emitter resistance corresponding to elements Z4, R8 for transistor TS4 and elements Z3, TS5 for transistor TS3, the transistor TS5 being connected in series with a reference diode D and being controlled by a potential divider R3, R4, R5 connected between the terminals E1, E2 of the network. Compensation for temperature drift is provided by the circuit comprising resistor R6 and a temperaturedependent resistor Th. The transistor TS5 constitutes a variable resistance whose magnitude is determined by the volt drop across divider R3, R4, R5, the arrangement being such that the volt drop across and hence the current through the network is automatically stabilized. The auxiliary control transistor TS6 is connected to a capacitor C which prevents response of the network to high frequency transients and provides a desired A.C. impedance for a broad operating range, whose bottom limit is determined by the minimum required impedance and the maximum permissible D.C. resistance and whose upper limit is determined by the D.C. load being supplied or by the minimum required impedance. Typical characteristics relating network current Ig, volt drop Ug, D.C. resistance Rg and 50 cycle A.C. impedance R are discussed, Figs. 3 and 4 (not shown). Application of the network to a remote supply circuit for a carrier frequency link is described, Fig. 5 (not shown), the network replacing the suppression chokes normally used.
Patent GB-1081293-A (GB)
Title: Wet and dry pipe sprinkler systems
IPC: A62C35/60
Filed: 1963-11-26
Abstract: A wet and dry pipe sprinkler system comprises means for supplying a chemically inert gas (e.g. A, Kr or N2) under pressure at least to that part of the piping likely to be exposed to low temperature during the dry phase of the system. Preferably, means are provided whereby the gas supply is automatically cut off when the system becomes operable.