baber/WOPTO huggingface dataset:
Patent GB-1491035-A (GB)
Title: Control apparatus for at least two motors the shafts of which are coupled mechanically
IPC: H02P5/69
Filed: 1974-10-25
Abstract: 1491035 Control of electric motors BBC BROWN BOVERI & CO Ltd 25 Oct 1974 [27 Oct 1973] 46281/74 Heading H2J Control apparatus for controlling the total torque of a plurality of electric motors of which the shafts are coupled mechanically in torqueaiding relation, comprises a plurality of control channels for controlling respective motors, each channel having a signal input for a torque control signal representing the desired total torque, a signal output for a motor control signal derived from the torque control signal, and signal limiting means connected between the input and output for limiting the motor control signal; and compensation circuitry connected to each channel at points upstream and downstream (with respect to the signal path) of the signal limiting means of each channel for deriving, for each channel, a difference signal representing the difference if any between the motor control signal actually present and the motor control signal that would be present in the absence of limitation thereof by the signal limiting means, the compensation circuitry being connected to apply a said difference signal derived from any of said channels to the signal input(s) of one or more of the other channel(s) additively to the torque control signal thereof. In the embodiment two motors N1, N2 each have a respective control channel comprising (for motor N1) a summing amplifier V1, output amplifier V5, current regulator V7 and limiting device B A  and (for motor N2) similar members V4, V6, V8 and B B . Amplifiers V1, V4 receive via resistors R1, R9 an input current signal J w  representing the total torque M w  to be provided by the combined motor torques, the normal operation being such that each motor supplies 0À5 M w  since the devices B A , B B  are inactive and the differential amplifiers V2, V3 of a compensating unit A receive equal signals from the outputs of amplifiers V1, V5 and V4, V6. Regulators V7, V8 thus control the motors according to comparisons of the reference currents from amplifiers V5, V6 with the actual motor currents J x 1, J x 2. If a motor or its associated equip. ment develops a fault, device B A  or B B  limits the output of amplifier V5 or V6 to limit the torque of motor N1 or N2 and cause the amplifier V2 or V3 to produce an output, which is applied to the input of amplifier V4 or V1 to increase its output and hence the torque supplied by the motor N2 or N1. If both amplifiers V2, V3 produce an output, an alarm signal is transmitted through monitor devices M1, M2 and an AND gate u to indicate that the motors can no longer develop the required total torque. The current limits set by devices B A , B B  can be reduced by actuation of switches S1 to S4 depending on the nature of the fault detected. The invention may be applied to control motors with different power outputs.
Patent GB-1082442-A (GB)
Title: Method of stacking sections made of a ferro-magnetic material
IPC: H01F7/20
Filed: 1965-11-04
Abstract: 1,082,442. Stacking ferromagnetic sections. SIEMAG SIEGENER MASCHINENBAU G.m.b.H. Nov. 4, 1965 [Nov. 6, 1964], No. 46817/65. Heading B8C. A first row of ferromagnetic sections 5a (Fig. 3) suspended from a magnet serves as an align. ing and nesting comb to pick up a second row 5b of the sections the opposite way up. The two rows can then be laid simultaneously on a stack. The magnet may be raised from below to lift the first row of sections from the plane in which they are conveyed, and may then be inverted to pick up the second row. The magnet may have two opposed lifting surfaces so that it need not be re-inverted between handling pairs of rows.
Patent GB-1518100-A (GB)
Title: Annealing process
IPC: C21D1/767
Filed: 1975-10-31
Abstract: 1518100 Coil annealing BRITISH STEEL CORP 31 Oct 1975 [31 Oct 1974] 47198/74 Heading C7N In a method of annealing metal articles, particularly coils of steel strip, a protective, usually reducing gas is circulated inside a furnace cover around the articles to be annealed and through one side of a rotary heat exchanger, hot gases being passed through the other side of the heat exchanger, followed by cold gases to cool the protective gas. The hot and cold gases may be air. In carrying out an annealing the coils 12 of sheet steel are stacked on a pedestal 72 in well 16. Annealing furnace 10 is lowered and sealed at its periphery 14. Reducing gas is admitted to furnace 10 through inlet 18, and leaves through outlet 20. Circulation, powered by fan 24, is then through one side 44, 40 of rotary heat exchanger 22, in which the refractory or metallic matrix disc 30 with a plurality of honeycomb passages 32 is continuously driven by a central rotor and driveshaft 36. Hot gases from generator 26, or cold gases from inlet 28 are admitted countercurrently to the other side, 38, 42 of the heat exchanger to heat or cool the reducing gas circulating in the closed circuit. A flexible seal 46 extends between the gas ducts 38, 40 and 42, 44, seating on the face 34, Fig. 4 (not shown) of the matrix disc 30 to prevent contamination of the reducing and hot or cold gases.
Patent GB-967884-A (GB)
Title: Process of purifying methanol
IPC: C07C31/04
Filed: 1962-12-17
Abstract: Methanol, particularly that used as an anti-freeze or solvent medium in the treatment of acetylene gas produced by the cracking of hydrocarbons, is purified of higher acetylenes and aromatic compounds by mixing with water and contacting said mixture, preferably atomized, with an inert gas in countercurrent flow. The water is generally not less than 50% by weight of the mixture and is used, before mixing, to wash the stripping gas leaving the methanol purification zone to recover methanol vapour therefrom. The inert stripping gas may be combustible or incombustible but must contain substantially no oxygen or gases very soluble in water or methanol; specified gases are nitrogen, carbon dioxide and the gaseous hydrocarbon which is to be cracked to form acetylene. In an embodiment impure methanol is passed counter current to an inert gas in a preliminary stripping zone, mixed with water and stripped in counter current by an inert gas in a second zone and then distilled to obtain pure methanol. In the Example the impure methanol was that employed to cool the product gases of the partial combustion of methane, the preliminary stripping gas was synthesis gas (e.g. CO + H2) and the second striping gas was that obtained after fractionating and washing the product gases to remove acetylene.ALSO:Methanol, particularly that used as an antifreeze or solvent medium in the treatment of acetylene gas produced by the cracking of hydrocarbons, is purified of higher acetylenes and aromatic compounds by mixing with water and contacting said mixture, preferably atomized, with an inert gas in countercurrent flow. The water is generally not less than 50% by weight of the mixture and is used, before mixing, to wash the stripping gas leaving the purification zone to recover methanol vapour therefrom.  The inert stripping gas may be combustible or incombustible but must contain substantially no oxygen or gases very soluble in water or methanol; specified gases are nitrogen, carbon dioxide and the gaseous hydrocarbon which is to be cracked to form acetylene.  In an embodiment impure methanol is passed countercurrent to an inert gas in a preliminary stripping zone, mixed with water and stripped in countercurrent by an inert gas in a second zone and then distilled to obtain pure methanol.  In the example the impure methanol was that employed to cool the product gases of the partial combustion of methane, the preliminary stripping gas was "synthesis gas" (i.e. CO+H2) and the second stripping gas was that obtained after fractionating and washing the product gases to remove acetylene.
Patent GB-1087754-A (GB)
Title: Chromating of aluminium surfaces
IPC: C23C22/44
Filed: 1965-11-09
Abstract: The main invention is modified in that the aqueous acid solution containing hexavalent chromium and fluoride ions also contains 0.1-4 g/l of vanadium in the form of an anion, e.g. vanadic acid or alkali metal or ammonium vanadate, without other activating anions.
Patent GB-1532212-A (GB)
Title: Electrical connector arrangements
IPC: H01R13/74
Filed: 1975-10-30
Abstract: 1532212 Connector assembly GENERAL ELECTRIC CO Ltd 30 Oct 1975 [4 Nov 1974] 47662/74 Heading H2E A connector assembly comprises a plurality of multicontact plug or socket connectors mounted on a planar base plate so that the wiring conductors of the connectors extend through holes in the plate and each connector is secured to the plate by insulating projections extending through some of the holes on the plate and which are retained in position by the respective wiring conductors. In an embodiment the base plate 1 is made of tin-plated steel and sockets 2 are mounted on it. The socket comprises a moulding 3, of insulating material, and a plurality of pairs of contacts 4, disposed to co-operate with a p.c.b. (not shown); each contact 4 has a wiring pin 5 which extends from the rear face of moulding 3 through a hole 6 on plate 1. Cantilevered detents 7 lock contacts 5 in position. Some of detents 7 are provided with extension 8 which engages the rear face of plate 1. The rear face of moulding 3 may be provided with a plurality of bosses 9 for locating the rear face of moulding 3 in the plane of plate 1. Normally, the base plate 1 is used as a "ground plane" in which case steel bushes 10 are used to connect pins five to the plate 1. Bush 10 is made of rolled steel, it push fits in a hole 6, and has a hollow cylindrical body 11 and two resilient fingers 12, and an axial slot 13 in portion 11. Fingers 12 are sufficiently long, e.g. extend to a distance equivalent to one wrapped connection, so that pin 5 can be readily withdrawn.
Patent GB-1329447-A (GB)
Title: 4-adamantylaminoalkylamino-2-styryl-quinolines salts and  derivatives thereof
IPC: C07D215/46
Filed: 1970-10-09
Abstract: 1329447 4-(Adamantylaminoalkylamino)-2- styrylquinolines E R SQUIBB & SONS Inc 9 Oct 1970 [27 Oct 1969] 48186/70 Heading C2C Novel 4-(adamantylaminoalkylamino)-2-styryl-quinolines of the general formula wherein each of R and R<SP>1</SP> is a hydrogen or halogen atom or a nitro, hydroxyl or alkoxy group, R<SP>2</SP> is a hydrogen atom or a C 1-8  alkyl group, each of R<SP>3</SP> and R<SP>4</SP> is a hydrogen or halogen atom or an alkyl, hydroxyl, alkoxy or phenyl group, R<SP>5</SP> is a hydrogen atom or a C 1-8  alkyl, C 2-8  alkenyl or phenyl-C 1-8  alkyl group and n is 2,3 or 4, and pharmaecutically acceptable acid addition salts thereof are prepared by reaction of a 4-halo-2-methylquinoline of the general formula wherein X is a chlorine, bromine or iodine atom, with an adamantylaminoalkylamine of the general formula and reaction of the resulting 4-(adamantylaminoalkylamino)-2-methylquinoline of the general formula with a benzaldehyde of the general formula followed optionally by salification of the product. N-(1-Adamantyl)-1,3-propanediamine is prepared by reaction of 1-adamantylamine with acrylonitrile and reduction of the resulting 3-(1- adamantylamino)propionitrile with lithium aluminium hydride. N-(1-Adamantyl)-N-ethyl-ethylenediamine is prepared by reduction of 1-acetamidoadamantane with lithium aluminium hydride, reaction of the resulting N-ethyl-1- adamantylamine with ethyleneimine and tosyl chloride and reaction of the resulting-N-}2-[N<SP>1</SP>- (1-adamanytl)-N<SP>1</SP>-ethylamino]ethyl}-p-toluenesulphonamide with ammonia. Pharmaceutical compositions having antiviral, antibacterial, antifungal and antiprotozoal activity comprise, as active ingredient, a 4- (adamantylaminoalkylamino) -2 -styrylquinoline of the first general formula above or a physiologically acceptable acid addition salt thereof, together with a suitable carrier, and may be administered orally or parenterally.
Patent GB-1121113-A (GB)
Title: Process for producing a phenol-aldehyde novolac thermosetting resin composition
IPC: C08G8/00
Filed: 1965-11-15
Abstract: A thermosetting resin composition comprising a solid phenol-aldehyde novolac and a curing agent, wherein the curing agent is wholly dissolved in the solid novolac or is partially dissolved in the solid novolac, the balance being present as a solid dispersion or is wholly present as a solid dispersion in the solid novolac, the curing agent being any material which will react with the phenol-aldehyde novolac under the influence of heat to render the composition permanently infusible is prepared by mixing the curing agent and a molten novolac at an elevated temperature and cooling to prevent complete reaction between the curing agent and the phenol aldehyde novolac.  The curing agent is suitably present in an amount of 3 to 25 parts per 100 parts by weight of the novolac and the mixing preferably takes place at a temperature of at least 60 DEG  C. with agitation for from 2 to 180 seconds.  Preferably, the curing agent is in a finely divided form but may also be in liquid or molten form.  The novolac is preferably a phenol formaldehyde novolac and the curing agent may be an epoxy compound such as polyglycidyl esters of polybasic acids, polyglycidyl ethers of polyhydric phenols or polyhydric alcohols and diepoxides, formaldehyde condensates of urea, guanamine, melamine and resorcinol, isocyanates, paraformaldehyde, a one-stage phenol formaldehyde resin wherein more than 1 mol. of formaldehyde is reacted per mol. of phenol and especially hexamethylenetetramine.  Generally, the phenolaldehyde novolacs employed in the invention are condensation products of 0.5-0.85 mol. of aldehyde per mol. of phenol.  The molten composition may be rolled into a flat sheet, cooled and the sheet broken to form flakes.
Patent GB-1287614-A (GB)
Title: Process for the preparation of ferromagnetic chromium dioxide
IPC: C01G37/02
Filed: 1969-10-07
Abstract: 1287614 Chromium oxide FARBENFABRIKEN BAYER AG 7 Oct 1969 [11 Oct 1968] 49137/69 Heading C1A [Also in Division H1] Ferromagnetic CrO 2  is made by (1) heating CrO 3  with a modifier to 200-380‹ C. to form a chromium oxide in which the chromium has an average valency of above 4 but below 6; (2) heating this chromium oxide with CrO 3  in the presence of water to 200-400‹ C. at a pressure of 1 to 500 kg./cm.<SP>2</SP>, using 1-40% wt. per cent of the chromium oxide product of (1) based on the weight of CrO 3  used in the second stage. The modifier, which may comprise 1-30 wt. per cent of the CrO 3  used in stage (1), may be tellurium or tellurium and/or antimony compounds with or without iron oxides or hydroxides. In examples, the products from stage (1) are Cr 3 O 8  or a mixture of Cr 3 O 8  and Cr 2 O 5  modified with TeO 2 , Sb 2 O 3  or α-FeOOH. The CrO 2  products may have a remanence of 400-500 Gauss cm.<SP>3</SP>g.<SP>-1</SP> and a coercivity of 200-500 Ve and consist of acicular particles 0À1-2 Á x 0À02-0À1 Á.
Patent GB-1279721-A (GB)
Title: Hammer
Inventor: SNOWBALL JOHN GEORGE
IPC: B25D1/02
Filed: 1969-10-07
Abstract: 1279721 Hammers ARDEN DIES Ltd 30 July 1970 [7 Oct 1969] 49204/69 Heading B4C A hammer includes a head comprising a body 16 provided with a recess 20 for accommodating a plug 22 e.g. of copper, aluminium, plastics, hardwood, lead, steel, or rawhide, and a retainer 30 for the plug extending through the body. As illustrated the threaded end of the retainer engages with a threaded recesss 32 in the plug, and rotation of the plug relative to the head is prevented by a projection 24 engaging in a bore 26 in the plug. The retainer has a head 34 provided with a through bore 38. To remove the plug from the body, a bar is inserted into the bore 38 and the retainer is partially unscrewed from the plug (Fig. 3), and a blow is applied to the head of the retainer. An alternative connection between the retainer and the plug comprises a diametral pin in a rod to be inserted into the bore 28 and bayonet slots in the plug with which the pin engages. The slots being so arranged that the retainer can be located in one of two different positions relative to the plug. The head and handle 10 are preferably made of mild steel although the handle may alternatively be made of wood.
Patent GB-1442096-A (GB)
Title: Process for the manufacture of 2/2 and 4/4-bipyridyls
IPC: C07B61/00
Filed: 1974-11-15
Abstract: 1442096 Process for the manufacture of 2 : 2<SP>1</SP> and 4 : 4<SP>1</SP> bipynidyls IMPERIAL CHEMICAL INDUSTRIES Ltd 22 April 1975 [22 May 1974 15 Nov 1974] 22890/74 and 49487/74 Heading C2C A process for the manufacture of 2 : 2<SP>1</SP>- or 4 : 4<SP>1</SP>-bipynidyls comprises heating a 2- or 4- (halo-magnesium)-pyridine respectively with a halogen or the halide of an element from groups IVb, Vb, VIb, VIIb, VIII, Ib, IIb, IIIa, IVa and Va of the Periodic Table. The process is convenionally carried out at from 40 to 180 C. Additional solvents may be added to the solutions of 2- or 4-(halomagnesium) pyrodines prepared for use in the process of the invention. Elements particularly suited for use in the process are silver, copper and cobalt. By Periodic Table is meant the tabulation of chemical elements as set out on page B-3 of "The Handbook of Chemistry and Physics" 54th Edition, 1973-74, published by CRC Press of Cleveland Ohio.
Patent GB-1439980-A (GB)
Title: Process for the manufacture of pure 1-nitroanthraquinone
IPC: C07C/
Filed: 1973-10-26
Abstract: 1439980 Preparation of pure 1-nitroanthraquinone BAYER AG 26 Oct 1973 [28 Oct 1972] 49936/73 Heading C2C Pure 1-nitroanthraquinone is prepared by nitrating anthraquinone in nitric acid at a concentration of at least 87% at from -20‹ to + 80‹ C. using a molar ratio of nitric acid/ anthraquinone of at least 4 : 1, thereafter in a first step precipitating dinitroanthraquinones either by adjusting the conditions to between an acid concentration of 87 to 99% at a mole ratio of nitric acid/nitration product of no less than 4 : 1 or by decreasing solely the acid concentration to 99 to 87% or by decreasing solely the molar ratio of nitric acid/nitration products to no less than 4 : 1, and in a second step separating off 1-nitroanthraquinone from the filtrate by setting up conditions ranging from an acid concentration of 76% and a molar ratio of nitric acid/nitration products of 19 : 1 to an acid concentration of 96% and a molar ratio of nitric acid/nitration products of 4 : 1.
Patent GB-1187817-A (GB)
Title: Production of Indole Derivatives
Inventor: CAREY DANIEL JOSEPH
IPC: C07D209/28
Filed: 1967-11-06
Abstract: 1,187,817. Indole derivatives. MERCK & CO. Inc. 6 Nov., 1967 [14 Nov., 1966], No. 50360/67. Heading C2C. The compounds are made by reacting (1) a p-nitro-R 2 -substituted phenylhydrazine with an α-R 1 -substituted levulinic acid; or (2) a p-nitro-R 2 -substituted phenylhydrazone of an α-R 1 -substituted levulinic acid, in a reaction mixture containing 30% to 55% by weight hydrochloric acid at a temp. of from 50 to 80 C. for 8 to 120 hrs. in a sealed vessel. R 1  is a hydrogen atom or C 1-6  alkyl radical and R 2  is a hydrogen or halogen atom or C 1-6  alkyl radical. The preparation of a number of such compounds, including chloro and fluoro derivatives, is described. The products may be converted to the therapeutically useful N-acylated derivatives. α-[1-(p- Chlorobenzoyl) - 2 - methyl - 5 - amino - 3 - indolyl]-acetic acid is obtained by treating 2- methyl - 5 - nitro - 3 - indolyl acetic acid with N,N-dicyclohexylcarbodiimide to form 2-methyl- 5 - nitro - 3 - indolyl acetic anhydride which is reacted with t-butanol to obtain t-butyl (2- methyl - 5 - nitro - 3 - indolyl] acetate which is N-acylated with p-chlorobenzoyl chloride in the presence of sodium hydride to obtain t-butyl [1 - (p - chlorobenzoyl) - 2 - methyl - 5 - nitro - 3- indolyl] acetate which on reduction with hydrogen over Pd/charcoal yields t-butyl [1-(p-chlorobenzoyl) - 2 - methyl - 5 - amino - 3 - indolyl] acetate which on heating yields the above acid with evolution of isobutylene-α-[1-(p-thiomethylbenzoyl) - 2 - methyl - 5 - dimethylamino - 3- indolyl] acetic acid is obtained by a similar process starting from t-butyl (2-methyl-6-dimethylamino - 3 - indolyl) acetate, obtained by Raney nickel reduction of t-butyl (2-methyl- 5 - nitro - 3 - indolyl) acetate in the presence of formaldehyde.
Patent GB-1398917-A (GB)
Title: Production of cyanogen chloride
IPC: C01C3/00
Filed: 1972-11-02
Abstract: 1398917 Cyanogen chloride DEUTSCHE GOLD - UND SILBER - SCHEIDEANSTALT 2 Nov 1972 [4 Nov 1971] 50472/72 Heading C1A Chlorine and hydrogen cyanide are reacted in the gas phase in the presence of a catalyst comprising graphite. The catalyst may contain inert materials such as porcelain, quartz, or metallic nickel, the inert material being usually present in an amount of from 20-60% by weight. The reaction is usually conducted at a temperature between 200-600 C., the reactants being in equimolar ratio. The gas mixture may be diluted with an inert gas such as nitrogen or carbon dioxide. The cyanogen chloride product may be isolated in known manner, e.g. by absorption in organic solvents.
Patent GB-1212359-A (GB)
Title: Switchgear test equipment
Inventor: SCHNABEL HANS
IPC: G01R31/28
Filed: 1967-11-07
Abstract: 1,212,359. Testing switchgear. STARKSTROM-ANLAGENBAU ERFURT VEB. Nov. 7, 1967, No.50500/67. Heading G1U. To test during operation a protective switchgear 5, which includes a voltage transformer 4 and a current transformer 20, respectively responsive to current and voltage in a circuit to be protected, a protective apparatus 25 and control apparatus 26 responsive to fault conditions to operate a circuit breaker 40 and first and second intermediate transformers 22, 17 between the voltage and current transformers and the protective apparatus respectively, the second intermediate transformer having an additional winding 16 for receiving a test voltage, a test equipment 1 is provided including a variable transformer 9 which when suitably energized provides test signals to a test point connectible with the additional secondary winding of the second transformer. The test unit also include a stabilizer and rectifier unit 32 connected to an output of the transformer 9, amplifiers and negator 29, 30, 31, connectible to receive inputs from particular outputs of the protective apparatus and powered from the unit 32, relays 33, 34 connected to the amplifier outputs and controlling signal lamps 37, 36, a further lamp 38 connectible to the control apparatus and a switch device 41 connectible to the control apparatus and settable to prevent operation of the circuit breaker when the switchgear is being subjected to a test, but resettable to allow operation and test of the circuit breaker. The test equipment may be powered from the switchgear voltage transformer 4 or a low voltage supply 3 via protective arrangement 12, and the test equipment may be connected to the switchgear while in use via plug and socket connections. The test signal output from the transformer 9, is fed via a changover switch 10 to the switchgear 5 and the transformer is adjusted to provide a current corresponding to the miniumum which ought to activate the protective and control apparatus 25, 26. The switch 35 enables the relays 33, 34, which are self-holding, to be reset following receipt of outputs from the switchgear indicating a satisfactory test.