baber/WOPTO huggingface dataset:
Patent GB-581345-A (GB)
Title: Manufacture of pyrimidine compounds
Filed: 1944-02-04
Abstract: 2 - Arylguanidino - 4 - hydroxypyrimidines, wherein either or both of the 5- and 6-positions may be unoccupied or may be occupied by a hydrocarbon radical or alternatively the 5- and 6-positions jointly may be occupied by a single divalent aliphatic hydrocarbon radical which forms with the 5- and 6-carbon atoms an alicyclic ring, and wherein the aryl radical may be substituted by one or more non-acidic substituents, are made by the reaction of an appropriate primary arylamine with an appropriate 2-cyanamino-4-hydroxypyrimidine.  The aryl radical may be substituted, e.g. by hydrocarbon radicals (which themselves may be substituted and may be attached to the aryl radical directly or through an oxygen, nitrogen or sulphur atom or a sulphonyl or carbonyl group), halogen atoms, cyano, nitro, amino, acylamino or esterified carboxyl groups.  Reaction may be effected by heating the 2-cyanamino-4-hydroxypyrimidine with the arylamine or a salt thereof, optionally in presence of a solvent or diluent, e.g. a mixture of b -ethoxyethanol and water.  In examples (1) to (11), 2 - cyanamino - 4 - hydroxy - 6 - methylpyrimidine and aniline, p- or m-chloro-, p-nitro-, p-cyano-, p-methylmercapto-, p-phenyl-, p-iodo-, 3 : 5-dichloro- or 3 : 4-dimethyl-aniline or b -naphthylamine react to give the corresponding 2 - arylguanidino - 4 - hydroxy - 6 - methylpyrimidines.  In examples (12) to (17), p-chloroaniline and the 2-cyanamino-4-hydroxy derivatives of 5 : 6-trimethylene-, 5 : 6-dimethyl-, 5-phenyl-or 5-ethyl-6-methyl-pyrimidine or of 5 : 6 : 7 : 8-tetrahydroquinazoline or of pyrimidine react to give the corresponding 2 - p - chlorophenyl - guanidine - 4 - hydroxypyrimidine derivatives.  Specification 581,334 is referred to. Specifications 581,346 and 581,347 also are referred to in the first Provisional Specification.  2 - Cyanamino - 4 - hydroxypyrimidines used as starting materials above are made by the reaction of dicyandiamide with a formylacetic ester appropriately substituted if necessary on the a - and/or b -carbon atoms.
Patent GB-596238-A (GB)
Title: An improved measuring gauge
IPC: G01B3/30
Filed: 1945-01-26
Abstract: 596,238. Surface and outline gauges. JONES, J. S.. and WHEATLEY, G. J. S. Jan. 26, 1945, No. 2141. [Class 106 (ii)] A tapered plate-gauge for measuring the spacing of two curved surfaces such as the throat dimensions of the guide vanes of a turbine, comprises a member 5, the opposite edges 6 and 7 of which are curved, the concave edge 7 being of smaller curvature than that of the edge 6. The member has a scale which may give direct measurements or may give the deviation from a standard width as shown in Fig. 2. To enable the throat width to be measured at given radii a gig is provided comprising a circular member 17, Fig. 3 and 4 carrying a plurality of hinged arms 18 of different radial length. Each arm carries at its outer extremity a platform 19 capable of passing partly between adjacent curved surfaces of the vanes on which the taper gauge may be placed.
Patent GB-563880-A (GB)
Title: A warping or beaming machine
IPC: D02H3/00
Filed: 1942-07-24
Abstract: 563,880. Warping and beaming yarns. LAMBACH, F. July 24, 1942, No. 2171/44. Convention date, Nov. 21, 1941. Divided out of 563,856. Drawings to Specification. [Class 142 (iv)] A warping or beaming machine is provided with means for rotating a flanged beam having a centre hole in each of the flanges. A driving head is arranged to engage one of the centre holes and idling head, which can be moved from operative to inoperative position is arranged to engage the other centre hole. The idling head is journalled in a bracket which is movable away from the beam so as to permit free access to the beam. The invention is described in Specification 563,856. Specifications 563,855, 563,857, [Group XXXVII], and 563,881 also are referred to.
Patent GB-353846-A (GB)
Title: Improvements in or relating to emulsions for use in the textile and leather industries
IPC: C14C9/02
Filed: 1930-01-22
Abstract: Emulsions of oils for use in treating leather or textiles are prepared by the use as emulsifying agents of glue or glue degraded with acid or enzymes, in conjunction with one or more carbohydrates such as gum tragacanth or starch.  For example the following proportions may be employed--(1) water 78 parts, oil 20 parts, glue and gum tragacanth 1 part each; (2) water 67 parts, oil 30 parts, gum tragacanth 1,5 parts, glue 1,5 parts or degraded glue 2 parts.  The first emulsion may be employed when diluted to 10 per cent strength to treat an equal quantity of chrome leather.  3 parts of the second emulsion are added with 1 part of glycerine to 15 parts of starch pasted with 100 parts of water to form a size for warp yarns.ALSO:Emulsions of oils for use in sizing textiles are prepared by the use as emulsifying agents of glue or glue degraded with acid or enzymes, in conjunction with one or more carbohydrates such as gum tragacanth or starch.  For example the following proportions may be employed-water 67 parts, oil 30 parts, gum tragacanth 1,5 parts, glue 1,5 parts or degraded glue 2 parts.  3 parts of the above emulsion are added with 1 part of glycerine to 15 parts of starch pasted with 100 parts of water to form a size for warp yarns.
Patent GB-879935-A (GB)
Title: Machine for making caps for bottles and the like
Inventor: FORD GEOFFREY EWART
IPC: B21D51/38
Filed: 1957-01-22
Abstract: 879,935. Punching machines. FORDS (FINSBURY) Ltd. Jan. 21, 1958 [Jan. 22, 1957], No. 2294/57. Class 31 (2). [Also in Groups XVI and XVII] A machine for making metal foil caps for bottles and the like comprises two sets of tools which are driven in step from a common drive in timed relation with the intermittent feed of a strip of the foil by a pair of feed rollers positioned between the two tool sets, the first set of tools making cuts or incisions in the foil, and the second set of tools performing the blanking and skirt-forming operations, the spacing between the sets of tools being such that the operations performed on the strip by one set register with those performed thereon by the other set. A cap, as shown in Fig. 2, is produced from a strip of aluminium foil 1 which is pulled through the first set of tools 3 and pushed through the second set of tools 5 by feed rollers 2 which are driven intermittently, e.g. by a ratchet drive as described in Specification 756,440. At each operation of the tool set 3 pressure cutters thereon make three cuts 4 in the foil strip which are then ironed flat between the feed rollers 2. The tool set 5 at each operation cuts-out the cap blank, forms a skirt 7 thereon, cuts a horseshoe-shaped slot 8 in the top portion of the cap, and embosses a circular reinforcing rib 10 and an arrow 11 in a tab 9 formed by the slot 8. As shown in Fig. 2, the cuts 4 extend radially from the slot 8 and facilitate the tearing of the capsule to remove it from the container when the tab 9 is pulled in the direction of the arrow embossed thereon. The tool sets are driven from a common drive shaft 14 which also drives the feed rollers 2. The tool set 3 may be used for cutting the slot 8 or for blanking out a tab portion for the cap as described in Specification 861,288. Specification 667,301 also is referred to.
Patent GB-1442000-A (GB)
Title: Production of polyhcloroprene
IPC: C08F36/00
Filed: 1974-01-17
Abstract: 1442000 Plasticizing chloroprene polymers E I DU PONT DE NEMOURS & CO 17 Jan 1974 [17 Jan 1973] 02312/74 Heading C3P Chloroprene polymers comprising at least 50 wt. per cent chloroprene, and which have been obtained by polymerization in aqueous emulsion in the presence of sulphur, are plasticized to give isolated polymers of varying viscosities by the addition of (a) a tetralkyl thiuram disulphide and (b) a sodium alkyl dithiocarbamate in quantities such that the mole ratio of (a) to (b) is maintained substantially constant but the total amount of (a) and (b) is varied to give products of different viscosities. Comonomers mentioned are styrene, methyl acrylate, butadiene and 2,3-dichlorobutadiene. In examples, polychloroprene and chloroprene/ 2,3-dichlorobutadiene copolymer are plasticized.
Patent GB-1090691-A (GB)
Title: Basic dyestuffs and processes for their manufacture
IPC: C09B51/00
Filed: 1966-01-18
Abstract: Basic dyestuffs having the general formula <FORM:1090691/C4-C5/1> wherein A is a dye residue free from acidic groups imparting solubility in water, Z is an oxygen atom or an NH- group, Y+ is a 5- or 6-membered heterocyclic ring containing a cyclic quaternary nitrogen atom and X- is an anion are prepared by (a) alkylating a dyestuff having the general formula A-2-CO-Y wherein A and Z have the above meanings and Y is a 5- or 6-membered heterocyclic ring containing a cyclic nitrogen atom; (b) a dyestuff intermediate containing a residue <FORM:1090691/C4-C5/2> e.g. a diazo or coupling component, is converted by coupling or condensation into a dye as defined above or (c) a dyestuff containing a group Z-H is acrylated with a halide of a carboxylic acid of the formula <FORM:1090691/C4-C5/3> e.g. a quaternated pyridine carboxylic acid. Suitable starting materials are dyes of the azo, anthraquinone, nitro, methine, styryl, and quinophthalone series.  Alkylating agents specified are methyl chloride, bromide and iodide; benzyl chloride; b -chloropropionic acid amide or methyl ester; trimethyloxonium boroflouride; diethyl and dimethyl sulphates; benzene sulphonic acid methyl ester and paratoluenesulphonic acid ethyl or butyl esters and alkylation takes place by heating in an inert organic solvent e.g. a hydrocarbon which may be halogenated or nitrated. The anion is preferably a residue of a strong acid e.g. sulphuric acid or a semi-ester thereof, halogen or an aryl sulphonic acid, and these anions may be replaced by anions of other inorganic acids. The dyes obtained are used to dye or print cellulose, silk, hairs, leather and polyacrylonitrile.ALSO:Nicotinylchloride N-methyl chloride is prepared by reacting dimethyl sulphate with nicotinic acid at 110-115 DEG  C. and the product is then reacted with thionyl chloride at 20-68 DEG  C.  The product settles out as a waxy, white substance. N-(b -cyanoethyl)-N-(b -nicotinyloxyethyl) aniline is prepared by reacting nicotinyl chloride hydrochloride with N-(b -cyanoethyl)-N-(b -hydroxyethyl) aniline in pyridine at 0-5 DEG  C. and then 80 DEG  C. and the ester formed may be subsequently reacted with dimethyl sulphate in chlorobenzene at 90-95 DEG  C. to form the nicotinyl N-methyl methosulphate.
Patent GB-761649-A (GB)
Title: Improvements in or relating to steroids
IPC: C12P33/00
Filed: 1955-01-26
Abstract: The invention comprises 11b , 14a , 17a -trihydroxyprogesterone. This compound may be obtained by subjecting 17a -hydroxyprogesterone to the oxygenating activity of a fungus of the genus Curvularia, e.g. C. lunata, NRRL-2380.
Patent GB-393019-A (GB)
Title: Improvements in or relating to the protection of electrical apparatus
IPC: H02H7/045
Filed: 1932-01-26
Abstract: 393,019. Protective cut-out arrangements. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and WILSON, W., c/o General Electric Co., Witton, Birmingham. Jan. 26, 1932, No. 2378. [Class 38 (v).] A power transformer 1, 2 which may transmit power in either direction, is provided with a protective system that is immune from operation by magnetizing currents. The system comprises a relay having a potential coil 3 energized either directly, or through a potential transformer, from the secondary 2, a current coil 4 that carries the difference, current between the current transformers 6, 7, and a biasing coil 5 in the circulating current circuit, the coil 5 providing a bias against operation proportional to the load current. A fault in the transformer causes a difference current to flow in coil 4 which current interacts with that of coil 3 to operate the relay if the bias of the latter is overcome. Magnetizing current, however, appearing in the coil 4 does not operate the relay as, being substantially wattless, no torque is set up by the interaction between the currents in the coils 3, 4. By making the relay close its contacts in either direction of movement, protection can be obtained for a transformer with reversible power flow. A suitable relay construction for such an arrangement is provided by arranging the coils 3, 4 on, respectively, an E-magnet and a U-magnet on either side of an induction disc, the currents being normally 90‹ out of phase with one another to provide the maximum operatng torque. If a current due to magnetization flows in 4, the currents in 3, '4 will then produce no torque. The biasing coil 5 is arranged normally to exert a radial force on an arm on the disc-spindle, but if the spindle is deflected in either direction the magnet will exert a force having a tangential component.
Patent GB-226060-A (GB)
Title: Improvements in oil and gas savers for oil and like wells
IPC: E21B33/08
Filed: 1924-01-29
Abstract: 226,060. Arbon, P. Jan. 29, 1924. Wells. - An oil or gas saver for wells comprises two members M, S, each longitudinally divided and having its parts connected by transverse bolts, the members having a threaded connection whereby split-ring packings 6 may be compressed around the reciprocating cable &c. C; the lower member S contains semicircular packings 17 and fol. lowers 20 normally free from the cable but adapted to be engaged therewith by means of screws 22 to seal off the well during renewal of the packings 6. The saver is held against a packing 24 on the well casing H by screws 25 engaging a tapered surface 23. Guide rollers 9 may be provided for the cable. The inner surfaces of packings 17 may be diagonally fluted to conform to the surface of the cable.
Patent GB-1008175-A (GB)
Title: A process for the hydrogenation of unsaturated halogenated organic compounds
IPC: C07C17/354
Filed: 1964-01-20
Abstract: Unsaturated hydrogenated hydrocarbons or ethers are hydrogenated in the liquid state in the presence of a rhodium catalyst, e.g. rhodium metal or alloy employed in finely divided form and admixed with or deposited on a suitable carrier such as charcoal, substantially pure carbon, alumina or clay.  The amount of rhodium employed is in the range of 0.0005 to 15% by weight with respect of the compound to be hydrogenated.  The reaction is preferably carried out at a temperature range from 10 DEG  to 45 DEG  C. and at a pressure from 0.5 to 3,000 atmospheres. Examples of starting materials are 1,3-dichloropropene - 1 : 3 - chloro - 1 - phenylpropene-1 and 3 - chlorophenyl - propane, chlorobenzene and ethers of the general formula ClCH = CHCH2OR, where R is methyl ethyl propyl or butyl and ClCH2CH2-O-CH = CH2.
Patent GB-347263-A (GB)
Title: Process for making diazotisable fibres
IPC: D06P1/12
Filed: 1930-01-23
Abstract: Diazotizable fibres are produced by treating cotton fibres, cellulose artificial fibres, or partially acetylated fibres, with an aromatic o-dinitro compound in presence of an inorganic agent which binds acid (other than a caustic alkali), and subsequently reducing the product thus obtained.  In examples, (1) viscose silk is treated with fused 1, 2-dinitro-4, bromobenzene containing lithium or sodium carbonate, washed and reduced by means of sodium hydrosulphite; (2) mercerized cotton yarn, swollen by means of caustic soda lye, is treated with fused 1, 2-dinitro-4, 5, dichlorobenzene containing sodium carbonate and subsequently reduced.  The product in each case may be diazotized and coupled with various dye components.  Specifications 346,385 and 347,117 are referred to.
Patent GB-1509902-A (GB)
Title: Pipelines
IPC: F16L13/02
Filed: 1975-04-18
Abstract: 1509902 Pipe-line DREDGING & CONSTRUCTION CO Ltd 18 April 1975 [18 Jan 1974] 02440/74 Heading F2G A pipe-line comprises one or more pipe strings each comprising a plurality of pipe sections held in end to end relationship by means of posttensioned tendons extending between anchorages in the respective end pipe sections of the string. Adjacent pipe sections can engage by means of a spigot and socket formation (Fig. 2) and seals 12, 13 and a gasket 14A may be provided. The pipe sections may be of cast concrete with reinforcement 9, 10 and the tendons 4 may pass through tubes 11 in the walls of the concrete pipe sections. The tendons 4 are secured by anchorages 5 (Fig. 3) in the end pipe sections of each string which sections may also be provided with steel tubes 6, 6<SP>1</SP>. Adjacent end pipe sections of respective strings may be joined together by welding said steel tubes 6, 6<SP>1</SP> together as shown in Fig. 3. The joint 7 so formed is then caulked with mortar 8.
Patent GB-869788-A (GB)
Title: Improved recording device
IPC: G11B23/16
Filed: 1960-01-22
Abstract: 869,788. Magnetic recording apparatus. VON KOHORN, H. Jan. 22, 1960 [April 20, 1959], No. 2451/60. Class 40 (2). Means for effecting selective post-facto or anti-facto recording comprises a first continuously operable record storage device and a storage device to which information is transferred from the first device by selective control means after a selected predetermined time interval. The first continuously operable storage device comprises an endless record belt which is driven continuously past a recording head 16 and through a storage chamber 13 and over a reproduce head 30. The time delay between recording and arrival at the reproduce head is in dependence upon the length of medium therebetween. The second storage device comprises a spooled tape 21 which is drawn over a record head 28 by a capstan 27 when drive is established through a clutch 24 controlled by a time delay switch 32. The said time delay switch 32 comprises a slowlyrotating disc 38 driven by a clock 36 and carrying switch members 41 which may assume upper or lower positions under the control of over-centre snap-action springs and which carry trailing wiper contacts 44. Operation of a push-button 47 causes the switch member 41 therebelow to snap into a lower position. After the period of time required for a point on the tape 12 to pass from head 16 to head 30 the wiper 44 of the operated switch member 41 contacts a conductive surface 63 and closes a circuit which operates the clutch 24 and establishes drive of the tape 21. Drive is maintained for a period of time corresponding to the length of surface 63 which also corresponds to the spacing between switch members 41. After a wiper 44 has passed over the surface 63, the appropriate switch member 41 is restored to its upper stable position by a ramp 65. While push-button 47 is held down, successive members 41 are set to their downward stable positions by a sloping surface 56 associated with push-button 47 and recording on tape 21 will continue for a period of time corresponding to the time the push-button 47 is held down. If it is required to start recording from a point in the programme occurring prior to that at the moment button 47 is pressed, buttons 49 are provided which cause the recording on tape 21 to start at an earlier time by an amount varying according to which button 49 is pressed. Similarly, if it is required that recording is not to commence until a later time buttons 48 are provided.
Patent GB-701724-A (GB)
Title: Improvements relating to sterols and sterol esters
IPC: C07J1/00
Filed: 1952-01-30
Abstract: Sterols and sterol esters having the formula <FORM:0701724/IV(b)/1> in which R and R1 are hydrogen, acyl or aroyl radicals, are obtained by reducing the corresponding 3.17-disubstituted <FORM:0701724/IV(b)/2> androstadiene and if desired hydrolyzing any ester groups in the 3 and/or 17 positions.  The reduction may be effected catalytically with hydrogen and a catalyst such as platinum or by means of an aliphatic alcohol and an alkali metal.  The reaction may be effected in the temperature range 0 DEG -50 DEG C.
Patent GB-555610-A (GB)
Title: Filters for liquids or gases
IPC: B01D46/00
Filed: 1942-02-26
Abstract: 555,610. Filters. VOKES, C. G. Feb. 26, 1942, Nos. 2534 and 11179. [Class 46] [Also in Group XXVIII] A filter unit having a plurality of filtering elements, mounted one inside another and arranged for parallel flow, is adapted to move under predetermined back pressure so as to by-pass the elements. As shown, elements 1, 2, preferably of pleated or star-shaped form, are enclosed in foraminated shells 3, 4, 5 secured between end caps 6, 8, provided respectively with openings 7, 9 for parallel flow through the elements from an inlet 19 to an outlet 23 in the casing 15. The unit is secured by a spider 13 and a wing- nut 14 to a guide rod 10, engaging in holes in a member 21 in the header 18 and in the plug 2, and is normally held by a spring 25 against the inlet 19. The first Provisional Specification comprises also a construction in which two concentric elements are each arranged for flow from inside to outside, a cylindrical partition being provided between them. The inner element is closed at the bottom and provided at the top with an inlet and guide spigot engaging in a central inlet in the casing connected with an annular passage leading to inlet ports for the outer element. An assembly bolt engages a spider attached to the inlet spigot and has an extension guided in a recess in the bottom plug.
Patent GB-546011-A (GB)
Title: Improvements in receivers for frequency or phase modulation
IPC: H03G5/26
Filed: 1940-12-23
Abstract: 546,011. Frequency and phase modulation. MARCONI'S WIRELESS TELEGRAPH CO.. Ltd. Dec. 23, 1940, No. 2544/42. Convention date, Dec. 22, 1939. Divided out of 544,502. [Class 40 (v)] The pass-band width of one or more stages of a receiver for frequency or phase modulated waves is varied automatically in dependence on the frequency swing of the received waves, with the object of reducing noise interference when the wave is weakly modulated. The Figure shows a superheterodyne receiver comprising two RF stages 406, 408, a frequency-changer 410, two IF stages 414, 416, a limiter 418, a frequencydiscriminator 420, a detector 422, and LF amplifier 424. The detected signals are also passed to a rectifier 430 giving a D.C. control voltage across the resistance 432. A tapping on this resistance is connected to the grids of a series of valves 468 which act as damping-resistances across the tuned circuits of the RF and IF amplifiers, the grids becoming more positive and thereby widening the pass-band as the signals become stronger. The voltage across the resistance 432 may also be amplified at 434 and applied to a solenoid 436 which jointly controls the couplings of the RF and IF stages. The bend width at its narrowest adjustment should be not less than twice the highest audio-frequency to be received. When the system is used for receiving phase-modulated waves, a correction circuit is added to the LF stages. The frequency discriminator 420 may be that described in Specification 489,094. U.S.A. Specification 1,819,508 also is referred to.