baber/WOPTO huggingface dataset:
Patent GB-994132-A (GB)
Title: A process for the preparation of polyisocyanates
IPC: C08G18/78
Filed: 1963-11-22
Abstract: The invention comprises compounds of the formula OCNR-[-N(CONX.RNCO)CO.NX.CO.NX.R-]n-NCO, where each R is a divalent hydrocarbon radical which may be substituted or contain hetero atoms, n is a whole number of 1-4, and X is hydrogen or a -CO.NX.RNCO group; and their production by reacting R(NCO)2 with ammonia or a substance releasing it (at least 1.5 mols. of diisocyanate per mol. of ammonia) and, at least towards the end of the reaction, heating the reaction mixture. Solvents may be used, and catalysts such as dibutyl tin laurate and ferric acetylacetonate may be employed.  In modifications of the basic process: (i) 1 mol. of diisocyanate is reacted with 1 mol. of ammonia to give OCNRNHCONH2, which is then reacted with at least 2 mols. of diisocyanate at elevated temperature; (ii) m mols. of diisocyanate (m = 2-5) are reacted with m-1 mols. of ammonia, and the resulting OCNR[NHCONHCONHR]nNCl is treated with at least one mol. of diisocyanate at elevated temperature; (iii) 1 mol. of diisocyanate and 2 mols. of ammonia are reacted to give an o ,o 1-diurea, which is then reacted with at least 3 mols. of diisocyanate at elevated temperature. In each case the process may be started at the intermediate stage. The first stage in each process is prefreably conducted between 0 DEG  and - 10 DEG  C.  Many suitable diisocyanates are listed. Small proportions of monoisocyanates may also be present in the reaction mixture.  The compounds of the invention are polyurethane precursors (see Division C3).ALSO:Polyisocyanates of the formula OCNR-[N(CO.NX.RNCO)-CO.NX.CO NX.R-]nNCO, where each R is the same or different divalent hydrocarbon radical which may be substituted or contain hetero atoms, X is hydrogen or a -CONX.RNCO group, and n is a whole number of 1-4 (see Division C2), may be used for the production of polyurethanes by reaction with polyhydroxyl compounds such as polyesters, polyethers, polythioethers and polyacetals. They are suitable for the production of coatings and homogeneous or porous plastics. In the production of foam plastics the polyisocyanates may be used as solutions in the monomeric diisocyanate R(NCO)2; water or halogenated hydrocarbons may be used as blowing agents.  In Example 8 the polyisocyanate prepared from a mixture of toluylene-2,4- and -2,6-diisocyanates and ammonia is reacted with a solution, in methyl glycol acetate, of a branched polyester obtained from trimethylol-propane, 1,3-butylene glycol and adipic acid, and the resulting solution applied to a base to give a lacquer coating.
Patent GB-1479781-A (GB)
Title: Sack magazine
IPC: B65B43/12
Filed: 1974-10-28
Abstract: 1479781 Feeding sheets F L SMIDTH & CO AS 15 Oct 1975 [28 Oct 1974] 46449/74 Heading B8R Bundles of sacks are transferred (e.g. manually) from a pallet stack 12, Fig. 1, on to a horizontal conveyer 1 between supports 2, and then by means of pneumatic or hydraulic pushers 4 on to lifting plates 8 of an upright conveyer 7 to form a pile the top 10 of which is defined by a height sensor 11, which controls the conveyers so that the conveyer 7, and consequently the conveyer 1, moves when there is room for the pile to move upwards far enough to allow a further bundle to be secured on the conveyer 7. In another form, Fig. 3, the bundles move by gravity over rollers 25 on to the upright conveyer 27, where they are carried down and then up to the sensor 29, being supported at the bottom of the conveyer 27 by an endless belt 31. From the top of the pile, individual sacks are separated and transferred to a packing- machine 9.
Patent GB-985798-A (GB)
Title: Pressure regulating fluid valve
IPC: G05D16/06
Filed: 1962-12-10
Abstract: 985,798. Valves. SPECIALTIES DEVELOPMENT CORPORATION. Dec. 10, 1962 [Dec. 13, 1961], No. 46455/62. Heading F2V. In a two-stage gas pressure regulating valve incorporating a relief valve in the second stage, e.g. for oxygen initially at 5000 p.s.i., a closely regulated second stage output of 0.8 p.s.i. to 1À2 p.s.i. is obtainable from a first stage (not shown) of 150 to 250 p.s.i. The second stage regulation occurs by expansion within a chamber 63 defined by flexible diaphragm 62 and having outlet passages 73, 16 and an inlet passage 34 to valve 20 obturated by spherical member 30 resiliently seated by transverse leaf spring 21, the spring action of which is opposed by a lever system consisting of lever 22 pivotable upon set-screw 49 by the action of interlocking lever 24 pivotable in turn about sphere 60 upon contact with a similar leaf spring 79 carried by a diaphragm retainer 66. The diaphragm retainer assembly which is resiliently sprung against casing 18, and adjustable by nut 27 to bear upon lever 24, incorporates a relief valve assembly whereby, as the diaphragm retainer assembly is forced against the action of spring 65 by excess pressure within chamber 63, an annular member 85 is brought up against stop 97, adjustable with respect to casing 18 by means of screwed portion 86, to release annular ridge 92 from seat 89 and permit gas flow, via passages 94 in member 85 and 99 in member 97, to atmosphere via aperture 100 in casing 18.
Patent GB-933687-A (GB)
Title: Process for colouring organic products with pigment dyestuffs
IPC: C09B1/42
Filed: 1961-12-28
Abstract: Viscose rayon, cellulose esters, nitrocellulose, urea- or melamine-formaldehyde resins, epoxy resins, polyurethane resins, alkyd resins, vinyl chloride polymers and copolymers, polyvinyl acetals, polyethylene, polypropylene, polystyrene, and mixed polymers thereof with polyesters of unsaturated dicarboxylic acids and dihydric alcohols, polyacrylates and acrylate copolymers and polyacrylonitrile are coloured yellow by incorporating the pigment:- <FORM:0933687/IV(a)/1> In examples, the above pigment is (1) milled with dioctyl phthalate and mixed with polyvinyl chloride, dioctyl phthalate, cadmium stearate and titanium dioxide; (2) milled with a nitrocellulose lacquer and titanium dioxide; (3) kneaded with acetyl cellulose, sodium chloride and diacetone alcohol and added to a spinning mass comprising acetyl cellulose and acetone; (4) milled with an alkyd-melamine stoving enamel and titanium dioxide to yield a lacquer, and (5) milled with sodium 1:11-dinaphthylmethane-2:21-disulphonic acid and water and added to a viscose rayon spinning mass.  Specification 658,722 is referred to.ALSO:1:5-di(ortho-fluorobenzoylamino)-anthraquinone is obtained in finely-divided form, for example having an average particle size of not more than 3m  or 1m , by milling dry or watermoist if desired in the presence of an organic solvent and/or a salt in a ball or roller mill or in kneading apparatus.  In examples, (6), cotton is dyed yellow in an aqueous dye-bath containing a mixed-polymer latex of isobutyl acrylate, acrylonitrile and acrylic acid, an aqueous emulsion of methyl-melamine-allyl ether, turkey red oil and soya bean fatty acid, a water-soluble methyl ether of a urea-formaldehyde condensation product, formic acid and a preparation comprising the above pigment milled with aqueous sodium 1:11-dinaphthylmethane-2:21disulphonate, and the dyeing is hardened by heating; (7), natural or regenerated cellulose fabric is printed yellow with a paste made by mixing an aqueous paste, obtained by milling the above pigment with an ethylene oxide-di-tertiary-butyl-p-cresol and water, with an oil-in-water emulsion of petroleum hydrocarbons, a styrene-butadiene mixed polymerisate emulsion, a solution forming a separate inner phase and consisting of a water-insoluble melamine-formaldehyde primary condensation product modified with n-butenol and n-butanol, a solution forming the outer phase and consisting of an ion-free emulsifying agent and water, and aqueous ammonium nitrate; (9), chrome grain leather is dyed using a pigment dispersion obtained by mixing with aqueous casein solution, sodium sulphoricinoleate and egg albumin a pigment paste diluted with a wash-emulsion and casein solution and made by milling the above pigment with aqueous casein solution and a dispersing agent; and (10), bleached cellulose paper pulp containing a zinc sulphide or titanium dioxide filler is mixed with the above pigment and fixed with aluminium sulphate. Specifications 658,722 and 822,504 are referred to.
Patent GB-975694-A (GB)
Title: Developer for electrophotographic purposes
IPC: G03G9/107
Filed: 1962-12-10
Abstract: 975,694. Developing electrophotographic images. KALLE A.G. Dec. 10, 1962 [Dec. 16, 1961], No. 46587/62. Heading G2H. Latent electrostatic images are developed by treating them, by means of a magnetic applicator to which a bias voltage is applied with a developer containing as a carrier iron powder and a toner two components of equal particle size, one assuming a negative charge and the other a positive charge in relation to the carrier. Developers used are listed in Specifications 944,394 and 944,395. In examples, "positive" toners are polystyrene admixed with maleinate resin or with colophony with a pigment of a 4-amino-anisole-2-sulphonic acid and "negative" toners are vinyl chloride/ vinyl acetate/ maleic acid terpolymer, kieselguhr or 5-chloro-2-methyl-benzimidazole, the bias voltage being positive or negative and up to 300 volts. The developed images may be made into printing plates if the components are differentially soluble or hydrophilic/hydrophobic (cf. Specification 944,395).
Patent GB-1066336-A (GB)
Title: Improved motor and compressor set applicable, in particular, to pneumatic suspension systems
IPC: B60G17/033
Filed: 1963-11-26
Abstract: 1,066,336. Adjusting vehicle height. F. S. ALLINQUANT. Nov. 26, 1963 [Dec. 5, 1962], No. 46692/63. Heading B7D. [Also in Division F1] Insan oleopneumatic suspension system, e.g. for vehicles, Figs. 1 and 2 (not shown), each wheel has associated with it, a cylinder fast with the vehicle body and a piston (3) the rod (4) of which is articulated to an arm (5) carrying the wheel. A flexible diaphragm (6) separates liquid contained in the cylinder from a mass of compressed gas which is connected by pipes (10) to a chamber (9) which forms a reservoir of gas under pressure (see Division F1) and which contains transfer means causing the said gas to pass from the chamber (9) to the cylinder and vice versa. The suspension is completed by an electrically controlled level correcting system which operates with an intermittent power supply derived from an electric source (26) via switch (28) connected to accelerator pedal (29). The level correcting system also includes threeposition height correctors (25a), (25b), (25m), (25n), the correctors for each axle being arranged in series and connected to the motor 14 and to electric valves 12.
Patent GB-1007293-A (GB)
Title: A method of reducing iron ores
IPC: C22B1/24
Filed: 1963-11-26
Abstract: Oxidic iron is converted to an at least partly metallic intermediate product by forming it into briquettes with a carbonaceous reducing agent and treating these in a rotary kiln, the briquettes for at least a part of their travel through the kiln passng through a bed of solid carbonaceous reducing agent. The amount of reducing agent incorporated in the briquettes is sufficient only for a part of the reduction desired, further reduction being brought about by the external reducing agent. The two reducing agents may be so proportioned that the external bed provides only sufficient volatile distillation products to supply on combustion the heat requirement of the process.  The briquettes may be charged to the furnace in the "green state"; the intermediate product may be converted to pig iron in a shaft or electric furnace.
Patent GB-1118598-A (GB)
Title: Production of elastomeric 1,3-diene polymers having improved strength values
Inventor: KASTNING ERNST-GUENTHER
IPC: C08F299/06
Filed: 1965-11-05
Abstract: 1,3-Dienes are polymerized in aqueous emulsion using conventional catalysts in the presence of a preformed polymer, the preformed polymer being a crystalline polyether, polyamide and/or polyurethane which contains at least one vinylidene group.  The preformed polymer may be used in an amount of from 0.1 to 50% of the total of preformed polymer and monomers.  The process may be carried out at 5 DEG  to 50 DEG  C., at a pressure of 1 to 20 atmospheres, in the presence of an emulsifier and/or regulator and to a conversion of 55% and upwards. Specified dienes are butadiene, isoprene, 2-3-dimethylbutadiene, 2-phenylbutadiene and 2-chlorobutadiene while comonomers especially styrene and acrylonitrile may also be present.  Specified catalyst are cobalt (III) acetylacetonate, p-methane hydroperoxide and potassium persulphate. The process may be continuous or batch.
Patent GB-1283204-A (GB)
Title: Piston for compressors and the like and method for its manufacture
IPC: F16J1/22
Filed: 1969-09-24
Abstract: 1283204 Making pistons DANFOSS AS 24 Sept 1969 [8 Oct 1968] 47052/69 Heading B3A [Also in Division F2] A piston comprises a cup 1 drawn from sheet metal, and a star-shaped reinforcement 4, the piston being made by soldering together the cup 1, reinforcement 4 and possibly a bearing insert 5 before machining the outside of the piston.
Patent GB-1372891-A (GB)
Title: Polymer and oil electrical insulation
IPC: H01B3/20
Filed: 1971-10-08
Abstract: 1372891 Surface treatment of polymer tapes E I DU PONT DE NEMOURS & CO 8 Oct 1971 [9 Oct 1970] 47074/71 Heading B5B [Also in Divisions H1 C3 and C5]  Polymer tape for use, in contact with an oil, in electrical insulation is modified to increase its affinity for the oil. The modification may be carried out by chemical etching, e.g. with sodium in liquid ammonia or sodium 1-methylnaphthalene in tetrahydrofuran, by exposure to a corona discharge or to radio frequency-activated gases or by heat treatment in contact with a nucleating surface such as gold foil. Polymers which may be treated include polyethylene, PTFE and tetrafluoroethylene-hexafluoropropene copolymers.
Patent GB-1442380-A (GB)
Title: Friction joint
IPC: F16D71/00
Filed: 1973-10-09
Abstract: 1442380 Friction joint HOLMBOM & HEDLUND AB 9 Oct 1973 [9 Oct 1972] 47122/73 Heading E2F A friction joint 1 comprises first and second members 2, 3 mounted on a shaft 6 together with a plate 5 arranged between the members and connected to the member 2 by a friction coupling, and a catch 17 mounted on the second member and pivotable under the influence of gravity on pivoting of the second member, e.g. to a position 23 or 24, so as to engage teeth 22 on the plate 5 and prevent pivoting of the second member in the reverse direction, except by overcoming the resistance of the friction coupling.
Patent GB-1313445-A (GB)
Title: Motor vehicle restraint device
IPC: B60R21/206
Filed: 1971-10-13
Abstract: 1313445 Vehicle occupant protection; crash bags FORD MOTOR CO Ltd 13 Oct 1971 [15 Jan 1971] 47594/71 Heading B7B A restraint device for the passenger 22 of a motor vehicle comprises an energy absorbing structure 26 and a bag 38 inflatable upon severe vehicle deceleration. The structure 26 has a flexible skin 32, with a small aperture 36, filled with an open-cell urethane foam 34 and is hinged at 28 to the vehicle body. Mounted beneath the structure 26 is a crash bag 38 of the high-pressure type inflatable by a pyrotechnic gas generator 42. For moderate vehicle decelerations, structure 26 alone affords protection, but in the event of severe deceleration, bag 38 inflates causing structure 26 to pivot upwardly to better protect the head and upper portions of the passenger's torso.
Patent GB-1367495-A (GB)
Title: Method of producing agglomerates from particulate ore or mineral concentrates
IPC: C22B1/14
Filed: 1971-10-13
Abstract: 1367495 Ore agglomerates AB COLDBOUND PELLETS 13 Oct 1971 [19 Oct 1970] 47632/71 Heading C1A Agglomerates of Fe or Fe-Cr oxidic ores or concentrates are produced by grinding together a binding agent which hardens in steam and an oxidic Fe material, adding this mixture to the ore or concentrate, forming agglomerates and hardening by steam autoclaving. The binder is selected from lime, dolime, slag from an iron or steel process, and silica-containing materials, e.g. cement; and is slaked before, during, or after grinding, and before forming the agglomerates. The oxidic Fe material may be magnetite concentrate or wustite (e.g. in slags). It may also contain at least one of MgO, MnO, Al2O3 and TiO2, preferably in solid solution in the iron oxide, as described in Specification 1,367,496. The binder mixture may be ground in a vibratory mill and mixed with the ore in a rod mill. Steam autoclaving may be carried out at 160-230 C. and 10-70 atmospheres. The agglomerates may be coated with MgO, e.g. by applying in slaked form before hardening.
Patent GB-1217862-A (GB)
Title: Power transmission mechanism
Inventor: EBERT HEINRICH
IPC: F16H47/02
Filed: 1967-10-20
Abstract: 1,217,862. Gearing. H. EBERT. 14 Oct., 1968 [20 Oct., 1967], No. 47756/67. Heading F2D. An infinitely variable transmission has an input shaft 10, forward and reverse clutches 15, 21, respectively, a driving shaft 17 fast with a power take-off shaft 24, and an output sleeve 25 which is attached to a planet carrier 26. When the transmission is applied to a tractor which is required to move either forwards or in reverse a clutch 43 is engaged and clutch 40 is disengaged, swash-plate 34 is at maximum inclination and swash-plate 31 at zero inclination. If the forward drive clutch 15 is engaged the shaft 17 and sunwheel 23 rotate clockwise whilst output sleeve 25, carrier 26 and the unit 33 are stationary. Annulus 28 and unit 30 rotate anticlockwise at half the speed of shaft 17. Since swash-plate 31 is at zero inclination no oil is pumped to unit 33. As the inclination of swash-plate 31 is increased unit 30 absorbs torque and oil is pumped to unit 33 which transmits torque to the output sleeve 25 via sleeve 32, pinion 36, wheel 37 shaft 38, clutch 43, pinion 41 and wheel 42. As a result the output shaft rotates clockwise at <SP>1</SP>/ 9 th the speed of shaft 17. The inclination of swash-plate 34 is now reduced until when its angle becomes zero hydraulic lock occurs and the output sleeve 25 is mechanically driven at 1/3 the speed of shaft 17. If a higher output speed is required clutch 40 is engaged and clutch 43 disengaged. The unit 33 now rotates at the same speed as the shaft 17 and functions as a pump whilst the unit 30 functions as a motor. As the inclination of swash-plate 34 increases the torque transmitted by the unit 30 increases. The epicyclic gear acts as a speed splitter and when the swashplate 34 is at maximum inclination the output shaft speed is equal to the driving shaft speed. Downward changes in gear ratio are effected by reversing the sequence of operations. Each of the units 30, 33 may be replaced by a bank of two or more such units, the shaft 17 passing through one unit in each bank. The gear 20 may mesh directly with gear 16 to provide reverse drive.
Patent GB-1084539-A (GB)
Title: Low temperature shift reaction catalysts and methods for their preparation
IPC: C01B3/16
Filed: 1965-11-12
Abstract: A process of making hydrogen by a shift reaction involving H2O + CO at 350-700 DEG  F. is effected in the presence of a Zn(Cu/Al2O3 catalyst such that the Zn/Cu ratio is 0.5 to 3 parts Zn per part Cu and the Al2O3 content is 1-55% by weight.  An activity constant Kw is used to assess the suitability of the catalyst for effecting the shift reaction at relatively low temperatures, e.g. 350-550 DEG C.ALSO:Shift reaction catalysts comprising Cu-ZnO and Al2O3 such that the ratio Zn:Cu is 0.5 to 3:1 and the Al2O3 content is 1 - 55% are described.  Preparations are conventional e.g. using soluble metallic salts, Na2Co3 as precipitant and following this with calcination and reduction with H2 and if desired steam.
Patent GB-1329669-A (GB)
Title: Production of pure polyols
IPC: C07C31/18
Filed: 1971-10-15
Abstract: 1329669 Polyols from aldehydes and formaldehyde SOC CHIMIQUE DES CHARBONNAGES CDF CHIMIE 15 Oct 1971 [20 Oct 1970] 48184/71 Heading C2C Substantially pure polyols are made by reacting aliphatic aldehydes with formaldehyde in the presence of a basic medium, preferably at pH 11-11À6, and removing excess formaldehyde from the reaction product by treatment with formaldehyde at pH 10-12.
Patent GB-483030-A (GB)
Abstract: 483,030. Loom warp protector devices. HARRIS, J. T. Oct. 10, 1936, No. 27536. [Class 142 (i)] The protector finger 1 has a cylindrical or truncated conical recess fitting a disc 4 having a polygonal hub fitted on the polygonal end of the protector rod 7, which penetrates the wall of the recess and is provided with a washer and nut, whereby the finger may be secured in an angularly adjusted position on the rod. When the swell becomes worn., the nut is slackened and the finger is rotated until it engages the swell, the nut being then tightened.
Patent GB-1247695-A (GB)
Title: A paint spray gun
IPC: B05B5/035
Filed: 1968-10-11
Abstract: 1,247,695. Spray producers. SVENSKA MASKINAKTIEBOLAGET GREIFF. 11 Oct., 1968 [11 Oct., 1967], No. 48404/68. Heading B2F. Electrostatic spray guns wherein paint is atomised by hydrostatic or pneumatic pressure comprise a grounded handle 1 and an electrically insulating spray head body 2 comprising a paint control member 3, a paint supply device 16, means for charging and atomising the paint including the forward end of a high voltage line 7, the paint control member having an extension forming a paint control needle 10 which is in galvanic contact with the high voltage line and extends with clearance through an inner paint nozzle 4, through which clearance the paint passes to be charged and ejected through an outer paint nozzle 5 prior to atomisation, the paint control member having an intermediate portion 19 of non-conductive material, said intermediate portion being provided with sealing rings 8, adjacent its ends, for defining a space for electrically insulating liquid introduced under pressure between said sealing rings to insulate the grounded handle against current leakage. The insulating liquid may be introduced through a threaded hole in the spray body, pressure being applied by operation of the screw 9. Deposition of paint on the nozzle may be avoided by charged plate 11 of conductive material.
Patent GB-1182440-A (GB)
Title: Improvements in or relating to Soldering Flux Compositions
Inventor: PLEDGER BRYAN EDWARD GEORGE
IPC: B23K35/36
Filed: 1967-10-26
Abstract: 1,182,440. Soldering flux. BRITISH INSULATED CALLENDER'S CABLES Ltd. and W.T. GLOVER & CO. Ltd. Oct.25, 1968 [Oct. 26, 1967], No.48783/67. Heading C7M. A flux for soldering Al comprises the reaction product of at least two of Ammonium hydrogen fluoride, a borofluoride such as ammonium borofluoride a zinc compound such as zinc oxide, with a liquid vehicle comprising monoethanolamine and triethanolamine, the monoethanolamine initially forming 10-25% of the vehicle. The vehicle may also contain up to 20% of the flux of di or triethylene glycol. The solid constituents amount to 10-25% of the entire flux and the following examples are given:- monoethanolamine 14% 9% 9% triethanolamine 67% 62% 62% diethylene glycol - 10% - triethylene glycol - - 10% ammonium borofluoride 14% 14% 14% zinc oxide 5% 5% 5% a dye such as pararosaniline (oil soluble violet) may be added to the flux.