baber/WOPTO huggingface dataset:
Patent GB-994166-A (GB)
Title: Method of producing nitrosyl chloride
IPC: C01B21/084
Filed: 1962-11-06
Abstract: Nitrosyl chloride entrained in excess hydrogen chloride is produced by passing hydrogen chloride through a solution of nitrosyl sulphuric acid in sulphuric acid, the solution containing 2-13% of water and being at 50-250 DEG  C.  The nitrosyl sulphuric acid solution is produced by absorbing nitrogen sesquioxide in sulphuric acid.  The nitrogen sesquixode may be produced by mixing nitric oxide and nitrogen peroxide or nitric oxide and oxygen or by oxidizing ammonia with air.  The spent sulphuric acid containing water of reaction may be recycled to the nitrosyl sulphuric acid production step provided that the water is-removed before or after recycling to the nitro syl sulphuric acid production step and before passage to the nitrosyl chloride production step.  Water removal may be effected by vacuum distillation at a temperature of 120-250 DEG  C. and a pressure of 20-300 mm. of Hg or by stripping with dry nitrogen, carbon dioxide or air at 150-300 DEG  C.  Sulphuric acid evolved in the water removal may be replaced in the form of anhydrous or fuming sulphuric acid The nitrosyl chloride may be condensed as a liquid further purified by distillation.
Patent GB-1283070-A (GB)
Title: Underwater production apparatus for handling and at least partially separating production fluids
Inventor: FAIRBANKS WILLIAM JAMES
IPC: E21B43/017
Filed: 1969-08-26
Abstract: 1283070 Off-shore structures SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 26 Aug 1969 [28 Aug 1968] 42386/ 69 Heading E1H An underwater production-apparatus for separating petroleum oil and gas collected from off-shore wells has a plurality of separator units 22a (only one shown) and a "control package" 23 mounted detachably on a framework 33 of a primary base-member 30, which includes a tubular portion 34 and a flared portion 32 engaging with hollow members 20, 28 fixed to a base 19. A shoulder 26 aligns a key member 35 with a slot 27 when the base member is lowered from the surface on to the member 20. A similar provision is made for a cylinder 38 of a secondary base-member 36, which carries manifold conduits 62, 63, 64 in series with conduits 131, 132, 133 associated with each separator and trunk flowlines 150, 151, 152 for separated oil and gas and gas to pressurize the wells, each of the latter being coupled to a respective separator by detachable lines 142, 143. Oil flowing from the separator units through the conduit 64 enters a tank 86 by way of a conduit 72, a pump within the tank periodically draining the tank to the line 150 through a pipe 76. The tank and pump can be bye-passed through a valve 75. The lines 151, 152 are connected to the conduits 62, 63 directly. A bye-pass conduit 140 for the pressurizing gas is provided at each separator unit. A television camera 56 and a wrench head 55 on a travelling remotelycontrolled manipulator-device 47 facilitate mounting of the separator units on brackets 92, 93 when these units are lowered from the surface and the connection of coupling members 71, 73, 77. A shoulder 82 on a skirt portion of the cylinder 38 brings an element 84 on the tank into a slot 85 when the tank is lowered into the member 20.
Patent GB-1365451-A (GB)
Title: Coaxial line section resonators
IPC: H01P7/04
Filed: 1972-09-13
Abstract: 1365451 Microwave resonators SIEMENS AG 13 Sept 1972 [13 Sept 1971 24 July 1972 24 Aug 1972] 42457/72 Heading H1W A tunable resonator comprises a length of coaxial line 4, 5 short circuited at one end by a plate 6 and having between the conductors and near the plate a conductive member 1 which is rotatable to adjust the resonant frequency. The conductive member 1 can be a closed loop or a plate possibly with additional conductive elements mounted eccentrically adjacent the member. The member 1 is held in the plate 6 by a spring 3 or alternatively it can be similarly mounted in the outer conductor 5 of the line, Fig. 2 (not shown).
Patent GB-1481057-A (GB)
Title: Purification of exhaust gases of liquid fuel i c engines
IPC: F01N3/30
Filed: 1974-09-30
Abstract: 1481057 Treating exhaust gas from a turbosupercharged engine J EBERSPACHER 30 Sept 1974 [28 Sept 1973] 42457/74 Heading B1W [Also in Division Fl] The exhaust gases from an exhaust gas driven turbo-supercharged internal combustion engine are cleaned by causing the exhaust gas pressure to build up at the upstream side of the turbine (e.g. by shaping the inlet to give a throttling effect) so that the exhaust gas temperature increases and a first combustion phase is initiated and introducing a quantity of air derived from the turbine compressor into the exhaust gas at the downstream side of the compressor to initiate a second combustion phase. The exhaust gas may be contacted with a catalyst (e.g. copper oxide) during its passage through the turbine.
Patent GB-969853-A (GB)
Title: Stabilization of polyurethanes
IPC: C08G18/28
Filed: 1960-12-12
Abstract: A process for obtaining a stabilized polyurethane elastomer in which a reactive hydrogen containing compound having a molecular weight of about 700 to 6,000 is reacted with an approximately equivalent amount of an organic polyisocyanate to form a polyurethane elastomer, and the reaction product is baked to give the desired state of cure, is characterized by reacting the hydrogen containing compound with the polyisocyanate in the presence of a substituted phenol having an ionization constant of at least 1 x 10-10 and no greater than 1 x 10-5. About 0.1 to 1.5 parts of phenol per 100 parts of reactive hydrogen compound are generally used.  Hydroquinone mono-ethyl, methyl and butyl ethers, p-tert. butyl, amyl, ethyl, o- or p-chloro-o- and p-nitrophenols are specified. In Example (1) a reaction mixture from a polyester (a reaction product of glycol, glycerol allyl ether and adipic acid), containing phenylbetanaphthylamine and hydroquinone monomethyl ether, and tolidine diisocyanate is poured into a tray and cured at 100 DEG C. The Olsen flow of the product after different periods of ageing is measured.  Other examples describe the preparation of polyurethanes rubbers from (2) and (3) an adipic acid/ethylene glycol polyester, phenylbetanaphthylamine, p-tertiary butyl phenol and different amounts of tolidine diisocyanatel (4) ethylene glycol/glycerol allyl ether/adipic acid polyester, phenylbetanaphthylamine, tolidine diisocyanate and p-nitrophenol.  In other examples polyurethanes are prepared from polyester (obtained by reacting adipic acid with a mixture of 85% ethylene glycol and 15% glycerol allyl ether), tolidine diisocyanate and p-ter. butyl phenol or p-nitrophenol; and from polytetramethylene ether glycol and tolidine diisocyanate in the presence of p-tert. butyl-phenol.
Patent GB-1481615-A (GB)
Title: Processing semiconductor bodies
IPC: H01L23/544
Filed: 1974-10-02
Abstract: 1481615 Sorting semi-conductor bodies PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Oct 1974 [5 Oct 1973]  42762/74 Heading G1A In an apparatus for sorting or picking out semiconductor bodies having a light reflecting mark, or a light emitting mark or a magnetic mark which indicates unsuitability, the semi-conductor bodies are brought into the field of view of a detector. The resulting electrical signal from the detector is used to prevent the marked semi-conductor bodies from being further processed with the semiconductor bodies having no mark. In the main embodiment, modulated ultraviolet radiation is obtained from a mercury lamp 6, powered by an alternating current source 20 and a direct current source 10. The radiation is directed via an objective lens 8 and an ultraviolet pass filter 9 on to each semi-conductor body in turn. The semi-conductor bodies are marked with an ink containing a luminescent material. The resulting visible light that passes via an ultraviolet barrier filter 13 and a lens 12 is received by a photo transistor 14. The photo transistor's output is directed via a filter 17, an amplifier 18 and a rectifier 19 to a selection circuit 15. The selection circuit 15 can actuate a control unit 5 which moves the semiconductor body away and moves the next semiconductor into the ultraviolet rays, or, if no mark is detected, the semi-conductor body is removed by vacuum tweezers and placed automatically on a support to which it is soldered. The description also refers to using luminescent materials having different emission colours with corresponding adapted colour filters to provide a selection according to quality facility.
Patent GB-1149409-A (GB)
Title: Crankcase ventilator valves for internal combustion engines
Inventor: ARMSTRONG JAMES FRED
IPC: F01M13/02
Filed: 1966-09-26
Abstract: 1,149,409. Valves. ACF INDUSTRIES Inc. 26 Sept., 1966, No. 42773/66. Heading F2V. [Also in Division F1] A crank-case ventilator valve having an inlet 55 connected to the crank-case and an outlet 59 connected to the inlet manifold comprises a spring-loaded sleeve 77 urged by intake suction to the idling position, shown in Fig. 2, in which flow is restricted by orifice 83. At lower intake suction, the valve moves towards a seat 65, the spring 89 being of insufficient length to force the valve on to the vent, against which it seats upon backfire. An orifice 85 controls the flow of the crank-case gases at intermediate positions of the sleeve 77. In a modification, Fig. 6 (not shown), the inlet (55a) is arranged transversely with respect to the outlet (59).
Patent GB-964733-A (GB)
Title: Improvements in or relating to turbochargers
IPC: F04D27/02
Filed: 1960-12-15
Abstract: 964,733. Centrifugal compressors; gas turbine plant; charge pumps. SCHWITZER CORPORATION. Dec. 15, 1960 [Jan. 18, 1960], No. 43207/60. Headings F1B, F1C, F1G and F1T. A turbocharger for a an I.C. engine comprises a turbine adapted to be driven by the engine and a compressor driven by the turbine, the compressor being provided with valve means directly responsive to the compressor outlet pressure and arranged in the compressor outlet flow path for by-passing gases to the turbine inlet or outlet or to atmosphere whenever the outlet pressure reaches a predetermined maximum value. A supercharger for an I.C. engine comprises a centrifugal impeller 38 driven by the rotor 16 of an exhaust gas turbine. The discharge pressure of the supercharger is limited by a spring-loaded relief valve 47. When the discharge pressure has risen sufficiently to open the valve 47, compressed air is bypassed through passages 44, 44f to a region downstream (or alternatively upstream) of the turbine nozzle vanes 13, whereby the air mixes with the engine exhaust gases to lower their temperature. The angle at which the air is introduced into the turbine may be such as to aid or retard rotation. Alternatively, the by-passed air is discharged to atmosphere or to the exhaust duct of the turbine. In the latter case, the by-passed air may issue through an ejector nozzle arranged within the turbine exhaust duct so as to lower the exhaust pressure.
Patent GB-1318135-A (GB)
Title: Electrically-ignited gas-burning torch
IPC: F23D14/38
Filed: 1971-09-17
Abstract: 1318135 Electrically-ignited gas-burning torch HARRIS CALORIFIC CO 17 Sept 1971 [18 Sept 1970] 43386/71 Headings F4F and F4T The particular description and drawings are substantially identical to those of Specification 1,318,134 but the claims are directed to the electrical igniter circuit.
Patent GB-905640-A (GB)
Title: Improvements in electric circuit breakers
Inventor: COLEMAN EDWARD
IPC: H01H71/34
Filed: 1959-06-16
Abstract: 905,640. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A. May 25, 1960 [June 16, 1959], No. 43426/61. Divided out of 905,639. Drawings to Specification. Class 38 (5). In a moulded case circuit-breaker having an overload-responsive electromagnetically-tripped mechanism, an hydraulic time delay device comprises a sealed non-ferrous tube encircled by a coil and containing a spring-pressed plunger operating in liquid, and a ferrous sleeve surrounding the tube for a portion of its length at one end to assist in completing the magnetic circuit. The circuit-breaker is that described in Specification 905,639. Specification 905,641 also is referred to.
Patent GB-1464746-A (GB)
Title: Heat meters
IPC: G01K17/08
Filed: 1974-10-08
Abstract: 1464746 Heat metering apparatus R FELL AND B CLIFTON 8 Oct 1974 43553/74 Heading G1D A meter for measuring the quantity of heat transferred when a heat transporting medium flows through a heat exchanger comprises inlet and outlet conduits 1, 3 through which flows the medium, one conduit, conduit 1 in the embodiment shown, having a temperature sensitive device 3 mounted thereon for monitoring the temperature of the medium in this conduit, the other conduit 4 having a section 6 which is a heat-transfer unit and is in thermal contact with the heat transporting medium being also thermally insulated from the remainder of the conduit, the heat-transfer unit heating or cooling the medium, there being further provided means for measuring and means for controlling the heat energy which is added to or removed from the heat-transfer unit, the controlling means being arranged to minimize the difference between the two monitored temperatures. In the embodiment shown, the temperatures are monitored by gas containing bulbs 3, 7 connected by a capillary incorporating a mercury switch 9, the state of which therefore indicating which of the two monitored temperatures is the higher and determining whether electrical energy is supplied to a heater element 5. A watt-hour meter 10 indicates the electrical power input to the element 5. In alternative embodiments the temperature monitoring is effected by thermistors or bi-metallic strips, and the controlling means gives a continuous or intermittant output appropriate to the heat source, e.g. an electrical switch or hydraulic valve. The heat source may be a heater coil 5, hot water or steam. A measure of the heat gained by the medium may be obtained by reversing the roles of the inlet and outlet conduits.
Patent GB-1192142-A (GB)
Title: Production of Metalliferous Phthalocyanines
IPC: C09B47/067
Filed: 1968-09-13
Abstract: 1,192,142. Preparation of metal phthalocyanines. BADISCHE ANILIN- & SODAFABRIK A.G. 13 Sept., 1968 [16 Sept., 1967], No. 43659/68. Heading C4P. Metal phthalocyanines are prepared by contacting a gaseous phthalonitrile containing reaction mixture (formed by catalytic oxidation of a compound of general formula wherein X is alkyl or cyano or may form a benzene ring with Y, and Y is alkyl or may form a benzene ring with X, and may bear halogen substituents, with oxygen and ammonia at 300‹ to 500‹ C.) with an inert solvent at above 100‹ C., the solvent being liquid at the treatment temperature, adding to the liquid mixture obtained a metal salt Œ a nitrogen base and heating to 140‹ to 250‹ C. to form the metal phthalocyanine. The starting material may be o-xylene, o-toluonitrile or naphthalene and solvents mentioned include chlorobenzene, trichlorobenzene, benzonitrile, naphthalene, otoluonitrile, and nitrobenzene. Copper, aluminium, iron, vanadium and manganese salts and mixtures thereof are used. The example describes an apparatus for contacting the gaseous reaction mixture with the solvent in countercurrent flow.
Patent GB-1147475-A (GB)
Title: Improvements relating to the treatment of fats
IPC: C11B7/00
Filed: 1966-09-30
Abstract: 1,147,475. Fatty acid separation. UNILEVER Ltd. 30 Sept., 1966 [5 Oct., 1965], No. 43765/66. Heading C2C. [Also in Division C5] A process for separating crystals of fatty acids from liquid fatty material in intimate admixture with said crystals comprises incorporating proportions of water and of a wetting agent in the mixture of fatty materials in such a way as to maintain a continuous phase of the fatty material in which the water and wetting agent are dispersed, and separating from the resulting system a liquid phase composed substantially of said liquid fatty material. In an example, a mixture of free fatty acids of bone grease and oleic acid are melted, cooled and allowed to crystallize, an aqueous solution of a sodium alkyl sulphate or of sulphosuccinic acid 2-ethylhexyl ester being added after a slurry of crystals has formed; the solid crystals migrate to the aqueous phase and the phases are separated by settling and decantation or by centrifuging.
Patent GB-1323321-A (GB)
Title: Light beam deflecting device
IPC: G02F1/29
Filed: 1970-09-16
Abstract: 1323321 Semi-conductor devices HITACHI Ltd 16 Sept 1970 [26 Sept 1969] 44139/70 Heading H1K [Also in Division H4] A light deflector comprises a body of a semiconductor material which is transparent to light of the wavelength to be deflected and has a forbidden band width greater than the energy of that light, the body having two opposed light transmissive faces and being doped at one face to form at least one planar P-N junction in the body lying parallel to at least one of the two opposed faces, and transparent electrodes being formed on the faces so that the or each junction may be forwardly biased to provide an injected carrier concentration of 10<SP>18</SP>-10<SP>22</SP> cm.<SP>-3</SP>, thereby varying the local refractive index of the semi-conductor material. The body may comprise a single junction extending across the optical path and have inclined faces, whereby it constitutes a prism of variable refractive index. A similar effect is provided by a body with parallel faces and a plurality of parallel strip electrodes and junctions, if potentials applied to the electrodes are such that the optical path increase from strip to strip. In other embodiments, a two dimensional matrix of junctions is formed in a body with parallel faces, and is addressed by individual, or column and row grids, of electrodes. The potentials applied across different junctions may be selected so that the body acts, e.g. as a variable focus lens, or a deflector. The semi-conductor material may be II-VI compounds (CdS, ZnS, ZnTc), CdF 2  or SiC. An N type material may be doped with nitrogen ions to form a P type region.
Patent GB-1533418-A (GB)
Title: Compositions of olefin-sulphur dioxide co-polymers and polyamines as antistatic additives for hydrocarbon fuels
IPC: C10L1/14
Filed: 1975-10-27
Abstract: 1533418 Polysulphone polyamine resin compositions E I DU PONT DE NEMOURS & CO 27 Oct 1975 [29 Oct 1974] 44145/75 Headings C3M and C3R [Also in Division C5] An antistatic additive composition for hydrocarbon fuels comprises (1) a polysulphone copolymer component and (2) a polyamine component present in the weight ratio of 100 : 1 to 1 : 100, said component (1) consisting of about 50 mol per cent of units from sulphur dioxide, 40 to 50 mole per cent of units derived from at least one C 6  to C 24 -alkene-1 and from 0 to 10 mol per cent of units derived from an olefinic compound of formula AHC=CHB wherein A is a group of formula -(C x H 2x )-COOH wherein x is from 0 to 17 and B is hydrogen or carboxyl, with the proviso that when B is carboxyl, x is 0 and wherein A and B together can be a dicarboxylic anhydride group, and wherein said polymeric polyamine (2) has the formula wherein R<SP>1</SP> is a C 8  to C 24 -aliphatic hydrocarbyl group, R<SP>2</SP> is C 2  to C 6 -alkylene, R is R<SP>1</SP> or a group R<SP>1</SP>NHR<SP>2</SP>, a is from 0 to 20, b is from 0 to 20, c is from 0 to 20 and x is 1 or 2, with the proviso that when R is R<SP>1</SP> then a is 2 to 20 and b = c = 0 and when R is R<SP>1</SP>NHR<SP>2</SP> then a is 0 and b+c is from 2 to 20. Examples are given in which polysulphone (1) is produced from sulphur dioxide and 1-decene, 1-hexene, 1-octene, 1-dodecene, 1-hexadecene, or a mixture of 1-octene and octadecene or maleic anhydride; polyamine (2) is produced from epichlorohydrin and hydrogenated tallowamine or N-tallow-1,3- diaminopropane and the compositions may also comprise dicocodimethyl ammonium nitrite, hydrochloric acid, petroleum sulphonic acid, dodecyl benzene sulphonic acid and an aromatic solvent comprising toluene. Reference has been directed by the Comptroller to Specifications 1,432,265 and 1,432,266.
Patent GB-944724-A (GB)
Title: Camera with an exposure regulating device
IPC: G03B17/08
Filed: 1960-12-28
Abstract: 944,724. Photographic cameras with exposure meters. AGFA A.G. Dec. 28, 1960, No. 44524/60. Heading G2A. A camera with an exposure measuring device comprises an exposure value setting member for shutter speed and diaphragm aperture means in operative relation with entraining means for said other means said entraining means being movable to select one of two couplings between the setting member and said other means, each coupling corresponding to a different range of exposure values. In the embodiment shown in Fig. 1 a rotatable setting member 1 is rotatable clockwise when manually operable member 5 is moved in direction a, until a follow up pointer attached to member 8 abuts the pointer of an exposure meter, to set the exposure time and diaphragm aperture. These settings are achieved by means of a rod 10 which moves in slots 19, 20 in setting rings 21, 22, respectively. These rings are connected to diaphragm control plate 37 and exposure time control plate 38 respectively by means of springs, and have pins which engage recesses 35, 36. Two alternative sets of exposure settings are attainable, one in which the rod 10 moves in a slot 14 in a plate 11 and engages parts 19b, 20a of slots 19, 20 so that the full range of exposure times is covered before the diaphragm aperture is altered. The reverse happens when the rod moves in slot 13 in plate 11. A cam 17 on a rotatable plate determines in which of slots 13, 14 the rod 10 moves. In the idle position the diaphragm is fully open and the shutter is set at its slowest speed. In the embodiment shown in Fig. 2 the member 1 is replaced by a member 50 and mounted on it are two, two-armed levers 56, 57 which are controlled by cam 58 on a rotatable and manually adjustable member 60. The lever 57 controls through projection 57b, rod 63, projections 69a, 71, and lug 75 which engages the diaphragm aperture setting means. Lever 56 controls through a projection 56b (which engages rod 64) plate 65, cam 67 and rod 68 which engages the shutter speed control means. When the end 56a, 57a of one of the levers 56, 57 engages cam part 58a the other end of that lever engages its setting rod 63 or 64 but the other lever which engages cam part 58b does not abut its corresponding rod to alter its respective setting means until the member 10 has run down by an amount corresponding to the total range of the other setting means. By rotating member 60 through 180 degrees the two setting means can be adjusted in the reverse order. Specification 888,973 is referred to.
Patent GB-1473439-A (GB)
Title: Iminoisoindolenine pigments and a process for their manu facture
IPC: C08J3/20
Filed: 1975-10-29
Abstract: 1473439 Iminoisoindolenine pigments CIBAGEIGYAG 29 Oct 1975 [30 Oct 1974] 44544/75 Heading C4P The invention comprises iminoisoindolenine pigments of the general formula wherein X is H or halogen, Y is alkyl, alkoxy, alkanoylamino or alkylsulphonyl containing 1-4 C atoms, phenyl, benzoylamino, phenoxy or phenylsulphonyl optionally substituted by halogen, alkyl or alkoxy having 1-4 C atoms, X 1  is halogen, alkyl or alkoxy having 1-4 C atoms alkoxy carbonyl having 2 to 6 carbon atoms, nitro, CF 3 , carbamoyl or CN, Y 1  is halogen, alkyl or alkoxy having 1-4 C atoms, or CF 3 , m is 1-4, n is 0-2 and (m+n) is 4. They are prepared by condensing an aminoiminoisoindolenine of the general formula  or a phthalonitrile of general formula in the molar ratio 2 : 1 with a diamine of general formula  in which formulae X, Y, X 1 , Y 1 , m and n are as above. The pigments are used colour cellulose ethers and esters polyamides polyurethanes or polyesters, aminoplasts, phenolic plastics, polycarbonates, polyolefins, including p.v.c. and p.a.c., rubber, casein silicon and silicone resins which may be in the form of melts, spinning solutions, varnishes, paints or printing inks.