baber/WOPTO huggingface dataset:
Patent GB-742340-A (GB)
Title: Improvements in or relating to diaminoadiponitriles
IPC: C07C255/24
Filed: 1953-10-06
Abstract: The invention comprises diamino-adiponitriles having the general formula <FORM:0742340/IV(a)/1> wherein R1, R2, R5 and R6 taken individually represent hydrocarbon groups; R1 and R2 and R5 and R6 when taken together represent divalent chains which form heterocycles with the nitrogen; and R3 and R4 represent hydrogen or hydrocarbon groups.  The compounds are prepared by reacting hydrogen cyanide with 1 : 4 - diamino - 1 : 3 - butadienes of the general formula <FORM:0742340/IV(a)/2> at between 0 DEG  and 100 DEG  C., preferably in the presence of an inert organic solvent.  The products are corrosion inhibitors; also they may be converted into quaternary ammonium salts having bactericidal and insecticidal properties and into amides, esters, salts and acids.  In examples (1) 1 : 4-bis(dimethylamino-1 : 3-butadiene is added to a solution of hydrogen cyanide in diisopropyl ether yielding 2 : 5-bis(dimethylamino) adiponitrile having insecticidal properties; the nitrile may be alkylated with methyl iodide in dimethylformamide forming the quaternary iodide, which on treatment with aqueous silver hydroxide yields the free quaternary base convertible to any desired salt by reaction with the appropriate acid; treatment of the diamino adiponitrile with hot aqueous sulphuric acid yields 2 : 5-bis(dimethylamino) adipamide which is converted into dimethyl or diethyl 2 : 5-bis (dimethylamino) adipate by heating with methanol or ethanol and sulphuric acid; (2) hydrogen cyanide is added to 1 : 4-dimorpholino-1 : 3-butadiene in dioxane yielding 2 : 5-dimorpholino-adiponitrile; (3) 2 : 2 : 4 : 11 : 13 : 13 - hexamethyl - 6 : 9 - bis (dimethylamino) - 6 : 8 - tetradecadiene is added to hydrogen cyanide in pentane yielding 2 : 2 : 4 : 11 : 13 : 13 - hexamethyl - 6 : 9 - bis (dimethylamino) - 6 : 9 - dicyanotetradecane from which the 6 : 9-diamido derivative is obtained by alkaline hydrolysis; 4-morpholino-1 - dimethylamino - 1 : 3 - pentadiene and 1-morpholino - 1 - phenyl - 4 - dimethylamino-1 : 3 - butadiene may be used likewise; (4) hydrogen cyanide is added to 1 : 4-dipyrrolidino-1 : 5-butadiene in ether giving 2 : 5-bis (pyrrolidino) adiponitrile.  Other specified butadiene starting materials include 1 : 4 - bis (din - butylamino), 1 : 4 - bis (N - methyl - N-octylamino), 1 : 4 - bis (diallylamino), 1 : 4 - dipiperidino, 1 : 4 - bis(N - methyl - N - phenylamino), 1 : 4 - bis (dicyclohexylamino), 1 : 4-diphenyl - 1 : 4 - bis (dimethylamino) and 1 : 4-bis (dimethylamino) - 1 : 4 - bis (2 : 4 : 4 - trimethylpentyl), - 1 : 3 - butadienes and those of the above formula wherein R1 and R2 or R5 and R6 represent -CH2CH2SCH2CH2-.  The diamino butadienes may be prepared by isomerization of the corresponding diaminobutynes <FORM:0742340/IV(a)/3> for example as described in Specification 742,342, the butynes being obtained by Reppe's procedure from appropriate secondary amines and aldehydes and acetylene.
Patent GB-767103-A (GB)
Title: Electrolytic production of weak acids
IPC: C01B17/48
Filed: 1953-10-06
Abstract: 767,103. Electrolytically preparing weak acids. ROHM & HAAS CO. Oct. 6, 1953 [Oct. 17, 1952], No. 27396/53. Drawings to Specification. Class 41. A water-soluble salt of a weak acid is converted into the weak acid by passing D.C. through a cell including one or more identical groups of two compartments, one containing a strong mineral acid, e.g. hydrochloric or sulphuric acid and the other the water-soluble salt of the weak acid, the first mineral acid compartment housing the anode and the last weak acid water-soluble salt compartment being adjacent a cathode compartment containing an aqueous electrolyte, e.g. of the hydroxide of the metal of weak acid salt typically an alkali metal, all of the compartments being separated by cationically permeable diaphragms containing a cation exchange resin. The process can be applied to the preparation of organic acids such as acetic, propionic, butyric, itaconic, maleic, fumaric, acrylic, tartaric, citric, sebacic, ascorbic, oleic, and stearic acids as well as of inorganic acids such as sulphurous, arsenious and silicic acids. Typically the strong mineral acid is sulphuric acid, the weak acid salt is sodium acetate, and the catholyte is caustic soda solution, hydrogen and oxygen being evolved. If only one weak acid salt compartment is employed between the anode and cathode compartments, it is only necessary to add water to the anolyte which may be removed at will, to add sodium acetate to the intermediate compartment and to remove acetic acid as a solution, and to add dilute electrolyte, e.g. sodium hydroxide, to the catholyte removing the more concentrated caustic soda solution formed. If hydrochloric acid is used in the anode compartment chlorine is evolved instead of oxygen and hydrochloric acid must be added. Valve supply pipes are provided above the levels of the solutions in the compartments and draw-off pipes are provided at the bottom of the compartments. If a number of weak acid salt and strong mineral acid compartments are provided, the weak acid and its salt are continuously successively transferred from the compartment nearest the cathode which receives further weak acid salt to those nearer the anode and the weak acid is removed from that adjacent the anode, water, if sulphuric acid is used, or hydrochloric acid being supplied to the intervening mineral acid compartments. The cationically permeable diaphragms are preferably of the kind described and claimed in Specification 719,315 typically of polyethylene, polyvinyl chloride, natural or synthetic rubber containing a sulphonated copolymer of styrene and divinyl benzene prepared by the process of U.S.A. Specification 2,366,007. A potential of 11-12 volts is applied to the cell to pass between platinum electrodes a current of 60 amps/sq. ft. initially, falling to 6 amps/sq. ft. at the end of operation. Specifications 489,437, 498,251, 515,517, 516,609, 521,207, [all in Group IV], 693,166, 720,002, and U.S.A. Specification 2,340,111 also are referred to.
Patent GB-1443598-A (GB)
Title: 1- 3-acetylaminopropyl-4-2,5-dichlorophenyl-piperazine
IPC: C07D295/10
Filed: 1974-06-20
Abstract: 1443598 1 - (3 - Acetylaminopropyl) - 4- (2,5 - dichlorophenyl) - piperazine AZIENDE CHIMICHE RIUNITE ANGELINI FRANCESO SpA 20 June 1974 [6 July 1973] 27417/74 Heading C2C The novel compound of Formula I and salts thereof are prepared by one of the following methods (a) acetylating a compound of formula (b) acetylating reduction of a compound of formula (c) reacting XCH 2 CH 2 CH 2 NHCOCH 3  where X is Cl, Br, p-toluenesulphonate ester or similar bearing group with dichlorophenylpiperazine; (d) reacting acetamide with a compound of Formula V (e) partial hydrolysing a compound of Formula VI (f) chlorinating a compound of Formula VII (g) reacting 2,5-dichloroaniline with a compound of Formula VIII or (h) reacting XCH 2 CH 2 X with a compound of Formula IX Intermediate of Formula III above is prepared either by reaction of acrylonitrile on 1-(2,5- dichlorophenyl)piperazine or by chlorination of the 4-(m-chlorophenyl)-1-piperazinoproprionitrile Intermediates of Formula II above are prepared by reduction of III or by hydrolysis of a compound of Formula X Intermediate of Formula V is obtained by reaction of XCH 2 CH 2 CH 2 Y on 2,5-dichlorophenyl-piperazine when Y is a more reactive group than X. Intermediate VI above is obtained either by acetylation of II or reaction of V with diacetylamine. Intermediate VII is prepared by reduction of 1 - (3 - aminopropyl) - 4 - (m - chlorophenyl)- piperazine in the presence of an acetylating agent. Intermediate VIII is obtained by action of XCH 2 CH 2 CH 2 NHCOCH 3  on diethanolamine and treatment with a chlorinating agent. Intermediate IX is prepared by action of XCH 2 CH 2 CH 2 NHCOCH 3  on 2,5 - dichlorophenyl-ethylene diamine which is obtained either by reacting 2,5-dichloroaniline and aziridine or by action of 2,5-dichloroaniline on acetylaminoisopropylaziridine. The compounds have hypotensive action on intra oscular pressure, an adrenolitic effect and tranquillizing action.
Patent GB-759710-A (GB)
Title: Improvements in or relating to the condensation of metal vapours
Inventor: DERHAM LESLIE JACK
IPC: C22B19/18
Filed: 1953-10-06
Abstract: 759,710. Condensing metal vapours. NATIONAL SMELTING CO., Ltd. Sept. 17, 1954 [Oct. 6, 1953], No. 27436/53. Class 82(1). The vapours of metals such as zinc are condensed from gases containing them by agitation with molten condensing metal such as lead in a condenser in which the gases are passed between the surface of a bath of molten metal, which is agitated sufficiently violently to communicate the agitation to the gas flowing thereover, and a low roof, the distance between the roof and the surface of the molten metal when unagitated being from 4 to 6 inches. The cross-sectional area of the gas passage through the condenser is preferably less than half of that of the gas inlet. Agitation may be by compressed gas or, as shown in Fig. 1, by pumps. Figs. 1 and 3 show a condenser having gas inlet 7 and outlet 10 and condensing chamber filled with molten condensing metal to level 11, 4-6 inches below roof 8. Molten metal is circulated from external reservoirs 19, 19<SP>1</SP> and 19<SP>11</SP> by pumps 25, escapes from the pump outlet pipe through slots 16 and 17 and returns to the reservoirs through openings 18, 18<SP>1</SP> and 18<SP>11</SP>. Where zinc vapours are produced in a vertical retort or electrothermic furnace by injection of a relatively large amount of air into the base of the retort or furnace the zinc vapour may be condensed by passage through two condensers in series in the first of which zinc is used as a condensing metal and in the second lead. The lead, charged with condensed zinc passes through port 27, passage 28 to chamber 29 from which it is raised by pump 31 to chamber 32 in which it is cooled to a temperature at which zinc separates above the lead and is removed. The remaining lead flows back into the condensing chamber through inlet 26. Specifications 572,961, 686,559, 735,043 are referred to.
Patent GB-201813-A (GB)
Title: Improved method and material for constructing or repairing dust-free roads and for other purposes
IPC: E01C7/18
Filed: 1922-10-10
Abstract: 201,813. Cruijff, C. J. Oct. 10, 1922. Compositions containing bituminous and siliceous and like materials.-Solid bodies such as sand, powdered brick or rock &c., and liquid or semi-liquid hydrocarbons, such as petroleum, petroleum pitch, petroleum residue, tar oil, gas oil, tar, mixtures of pitch and tar, &c., are rubbed together under pressure in a pug-mill. The product may be crushed, and spread upon the road as powder and subsequently consolidated under high pressure, or may be applied in the heated state as a plastic mass, and in both cases crushed stones, gravel, slag, or other aggregate may be added before spreading, or clinkers, bricks, or other paving stones may be embedded in the surface after spreading. According to an example 3 parts of petroleum residue and 3 parts of pitch are rubbed together with 100 parts of sand and 50 parts of crushed stone are added.
Patent GB-837529-A (GB)
Title: Matting of photographic layers
IPC: C08F20/62
Filed: 1958-08-27
Abstract: The preparation of stable suspensions as of particle size of 0.5-5 microns of polymers or copolymers in water-permeable colloids (as distinct from emulsifiers) for use in adding to photographic layers for matting purposes include, in examples: (1) polyacrylonitrile, (2) polymethyl methacrylate, (3) a copolymer of methyl methacrylate and vinyl acetate, all in polyvinyl alcohol as protective colloid; and in Example 4 polyacrylonitrile in polyvinyl alcohol together with methyl cellulose.  The monomers for other polymers and copolymers, and other colloids including gelatine, are referred to also.
Patent GB-1197819-A (GB)
Title: Improvements relating to Rail Transport Systems.
IPC: B61B13/04
Filed: 1968-06-11
Abstract: 1,197,819. Rail vehicles and systems. BECORIT GRUBENAUSBAU G.m.b.H. 11 June, 1968 [13 June, 1967], No. 27590/68. Heading B7L. [Also in Division E1] The railway track (e.g. for mines) of monorail or other type is provided along at least the steeply inclined parts of its length with an apertured rack such as a fixed sprocket chain 15 cooperating with a motor-driven toothed wheel 14 on a self-propelled vehicle 2. As shown the track is supported above the ground and comprises vertical plates 17 carrying a pair of closely spaced inwardly facing channels 1a, 1b engaged by upper running wheels 5a-5b, vertical-axis guide rollers 5c, and lower stabilizing wheels 5d-5e. The sprocket wheel 14 is driven through gears 7, 8 and possibly a clutch from a diesel motor 6. The chain 15 may extend over one or several rail lengths, one of its end anchorages being adjustable for chain tensioning. In operation, a pair of traction vehicles 2, Fig. 1 (not shown), are coupled to passenger or goods vehicles (3) adjacent pairs of which share common undercarriage units (4).
Patent GB-1118504-A (GB)
Title: Surface velocity measurement
Inventor: BREWSTER ARTHUR EDWARD
IPC: G01P3/80
Filed: 1967-06-16
Abstract: 1,118,504. Detecting inhomogeneities; measuring velocity. STANDARD TELEPHONES & CABLES Ltd. June 16, 1967, No.27782/67. Headings G1A and G1N. The velocity of a steel strip is measured by detecting variations in a surface property of the strip using two transducers spaced in the direction of travel of the strip and feeding the outputs of the transducers to a correlation detector, a time delay being included in the connection between one of the transducers and the correlation detector. Either the time delay or the spacing between the transducers is adjusted to bring the signals applied to the correlation detector into synchronism. The surface property may be reflectivity, in which case the transducers would be photodetectors arranged at locations within a uniformly illuminated portion of the strip. Alternatively, magnetic playback heads may be used to detect variations in magnetic properties. A magnetic drum recorder may be used as an adjustable time delay. The correlation detector may be a longtailed pair.
Patent GB-867678-A (GB)
Title: A flat bed or straight knitting machine
IPC: D04B39/00
Filed: 1959-08-14
Abstract: 867,678. Knitting-machines. PALIZ-HOLDING A.G. Aug. 14, 1959 [Feb. 17, 1959], No. 27920/59. Class 74 (2). A device for pressing down and holding down the loops as they are formed by the needles of a parallel machine comprises two plates 12, 13 moving with one, 4 of the needle cams and bearing pins 14, 15 about which fabric holding-down members 18, 20 and 19, 21 can pivot independently in the general plane of the fabric so that, as the cam carriage carries out a traverse, the members encounter the fabric fell, the leading one being swung into the attitude of the member 18, 20, Fig. 1, and the trailing one into the attitude of the member 19, 21. The part 20b or 21b of the leading member encounters and presses down the newly cast off loops shortly before the needles begin their next advance; the part 20c or 21c retains the loops caught in the needles as the needles continue that advance, so causing latch opening, and finally pulls the work down as the needles are retracted again behind the knocking over comb 6 or 7. The extreme positions of the members are determined by stops 22, 23. Their idling positions may be determined by the action of torsion springs. The width of the members 19, 20 may be substantially equal to the distance between the two needle beds; or the ends of the members may be bifurcated, the resilient prongs 28, 29 pressing on the knocking over combs; and the part 20c. may be split. When it is sufficient for pressure to be exerted only at one point in the fell of the fabric, the members my be each made up of a slightly resilient rod carrying a thinner resilient fabric pulling down piece. The parts 20c, 21c may be made shorter and split into two arms 33, 34, their action during the final phase of needle retraction being taken over by wire loops such as 30, that on the trailing member being the active one. These loops may be angular, as shown, or smoothly curved and may be secured at both ends, or (as shown) at one end only, the other end taking into a recess 32.
Patent GB-1486527-A (GB)
Title: Offshore platform
IPC: F24V30/00
Filed: 1975-07-02
Abstract: 1486527 Offshore structures CHEVRON RESEARCH CO 2 July 1975 [29 July 1974] 27935/75 Addition to 1417895 Heading E1H An offshore structure, Fig. 1, for use in locations where ice forms, has a support portion 10 which is coated to reduce the tendency of the ice to adhere thereto. The surface may also be maintained above freezing point by heating sea-water in tanks 24. The heat is exhaust heat from gas turbine engines 34, 36 and is transferred to the tanks by heat exchangers 42, 44. The coating is a halocarbon resin or a nylon resin. Fig. 3 shows an embodiment in which heating panels 104 replace the tanks 24. The support structure may be made from the coating material, Fig. 5 (not shown). support structure may be
Patent GB-1533492-A (GB)
Title: Releasable pipe connector
IPC: F16L37/56
Filed: 1976-07-05
Abstract: 1533492 Pipe joint REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 5 July 1976 [11 July 1975] 27946/76 Addition to 1465243 Heading F2G A fluid communication device in the form of a releasable coupling is a modification of that disclosed in Specification 1,465,243 and is distinguished in that connecting member 2 defines two separate fluid passageways 6, 6<1> extending concentrically therein and terminating in respective radially extending passage portions 17, 17<1> communicating in the locked position of locking member 3 with aligned conduits 8, 8<1> in body 1 whereby simultaneous connecting of a double fluid circuit is effected using a single coupling member of further distinction resides in the limiting of relative axial movement between the connecting member and socket member 4 by the communication of a pin 21 protruding from the coupling end of the connecting member with an elongated hole 22 formed in the adjacent socket end and in which the pin is slidable. The socket being thereby retained on the connecting member during uncoupling thereof. As a further refinement the locking member is retainable in both its locking and release position by engagement with a push member (Fig. 2, not shown) which is urged under spring action into engagement with the locking member in the said positions, and is manually depressible to secure release of same.
Patent GB-1319735-A (GB)
Title: Drying dispersions of solid particles in liquid
Inventor: PUTTERLIK J
IPC: B01D1/18
Filed: 1971-06-15
Abstract: 1319735 Spray evaporators; drying dispersions CESKOSLOVENSKA AKADEMIE VED 15 June 1971 [15 June 1970] 27981/71 Heading BIB A dispersion of solid particles in liquid is dried by feeding it to the rotating drum 1 of a centrifuge which has an annular space 4 between the drum and the stator shell 5, so that some of the liquid is separated from the dispersion in the drum and thickened dispersion at a controlled concentration is atomized, through jets (not shown) in the radially outer surface of the drum, into a stream of hot gas (e.g. air) flowing through space 4 whereby the remainder of the liquid is evaporated. A mixture of dry solid particles in humid gas flows out of the shell 5 through tangential tube 10, and is passed to a separator. The hot gas is supplied to the space 4 through tube 8, and rapid movement is imparted to it by radial blades 13 on drum 1. Shell 5 may be heated by electric resistance band 15.
Patent GB-152220-A (GB)
Title: Improvements in heat engines
IPC: F02G1/06
Filed: 1919-11-12
Abstract: 152,220. Pratt, G. R. Nov. 12, 1919. Hot-air engines.-A hot-air engine is provided with a displacer 16 arranged in tandem with the power cylinder 1, the piston 3 of which is secured to the displacer plunger 19. A heater 49, a cooler 41, and a valve-chamber 25 containing a slide valve actuated by tappets 29, 30 through an eccentric-operated sleeve 31, are provided. The valve-chamber 25 is connected by pipes 63, 62, 56, 58 with the outer end of cylinder 1 and the ends of the displacer, by a connexion 61 through a coil 50 in the heater 49 with the pipe 58 which contains a non-return valve, and by connexions 55, 52 with the cooler 41. Gas under pressure at a temperature of, say, 60‹ F., is supplied through a connexion to pipe 52. Assuming that the forward end of the displacer has been charged with heated air, with the valve in the position shown, this expands in the power cylinder, doing work, and the near end of the displacer is charged with cold air from the cooler. At the end of the stroke the valve is reversed. The cold air in the rear of the displacer passes through the heater by pipes 58, 61 to the forward end of the displacer, and the hot air in the power cylinder is forced by pipes 63, 52 into the cooler.
Patent GB-426956-A (GB)
Title: A process for improving textile materials
IPC: D06M15/423
Filed: 1933-10-11
Abstract: Textile materials are rendered resistant to creasing by impregnating them with aqueous solutions of formaldehyde (or compounds supplying formaldehyde) in the presence of non-oxidizing acid-reacting compounds, acting on them with organic compounds containing a basic group and at least one radicle with 4 or more carbon atoms, and heating them.  The organic compounds last mentioned must not be of resinous character or capable of forming resins with formaldehyde. The process is particularly useful with cotton, mercerized or other hydrated cellulose, artificial silk, linen, and mixed fabrics containing for instance cotton and artificial silk, cotton and wool, or silk and artificial silk.  Formaldehyde may be employed as a 30 per cent solution, or as trioxymethylene.  In the organic compounds, the basic group may be nitrogenous or of the oxonium type.  Suitable compounds include dibutylamines, diamylamines, dodecylamine, cetylamine, octodecylamine, monooleyl amine, monostearyl amine; dodecyl, cetyl, oleyl, and octodecyl ethanolamines; sulphanilic acid; the esters or amides of higher fatty acids and hydroxyalkylamines such as mono, di, and triethanolamine, ethyl butanolamine, or cyclohexyl propanolamine, e.g. triethanol amine mono-oleic acid ester, dibutyl ethanol amine, palmitic acid ester, coco-nut oil fatty acid monoethanol amide, stearic acid monoethanolamide or oleic acid diethanol amide; the condensation products of ethylene oxide with amines or with esters or amides from fatty acids and alkylolamines; condensation products of ethylene oxide with fatty acids of high molecular weight, e.g. coco-nut oil, fatty acid, palmitic, stearic, ricinoleic, or oleic acid, or with their glycerides, or with the corresponding alcohols.  The products from 20 moles of ethylene oxide and 1 mole of oleyl alcohol, or from 10 moles of ethylene oxide and 1 of dodecyl alcohol, or from 40 moles of ethylene oxide and 1 of castor oil, are given as instances; from 4 to 50 moles of ethylene oxide may however be employed for each mole of acid or alcohol. The acid-reacting substance may be hydrochloric,sulphuric,amino-sulphonic, thiocyanic, acetic, chloracetic, ethionic, or a benzene disulphonic acid, or aluminium chloride or alum, and is used in such quantity that the bath has a faintly acid reaction.  If insoluble the amines are insoluble, the acid is slightly in excess of that required to convert them into soluble salts.  The textiles may be impregnated with a solution of all the reagents, squeezed or hydroextracted, dried, and then heated for a short time to 100--160 DEG  or 200 DEG  C.; or they may be successively treated with an acid-formaldehyde bath and with a solution of the basic compound, which may be used in proportions between 0,1 and 100 grm. per litre, but preferably not more than 50. Examples are given of the treatment of artificial viscose silk. Specification 414,576 is referred to.  According to the Provisional Specification the nitrogenous compound may be glycocoll, sarcosine, or taurine.