baber/WOPTO huggingface dataset:
Patent GB-754071-A (GB)
Title: Manufacture of new triarylaminotriazines
IPC: A61K31/00
Filed: 1954-10-06
Abstract: The invention comprises sulphonated triarylamino-triazines of the formula <FORM:0754071/IV(a)/1> in which all the triazine rings are bound to one another by -NH-R-NH- residues and every ring carbon atom not bound to such a residue is bound to -NH-R-NH2, R representing a residue of the formula Ar or Ar-Z-Ar, in which Ar is an arylene residue substituted by a free or esterified sulphonic acid group and Z is a direct bond or a bridge member, and n representing an integer such that the molecular weight of the compound exceeds 4000, and also salts of these compounds.  The arylene residues may contain further substituents, e.g. methyl groups or additional sulphonic groups, and a single compound may contain different R residues.  The bridge member may be a -C ­ C-, -CH = CH-, -CH2-CH2-, -NH-, -S- or -S-S- group.  The compounds are prepared by reacting a compound of the formula <FORM:0754071/IV(a)/2> in which X is halogen, with one or more diamines of the formula H2N-R-NH2, so that all the X's enter into reaction, or by reacting intermediates obtainable by the latter reaction with one another or with the starting materials.  The sulphonic acids may be in the form of their salts, and esters, salts and free acids may be converted into one another.  In the Examples: (1) benzidine-2,21-disulphonic acid is neutralized in water with NaOH and is heated with cyanuric chloride at 90 DEG  C.  A mixture of triarylamino-triazines is obtained with average molecular weights of about 30,000 and 420,000.  (2) 4,41-diaminostilbene-2,21-disulphonic acid are similarly reacted with cyanuric chloride, giving a product of average molecular weight 700,000.  (3) The product of Example (2) is reacted with diazomethane to esterify the sulphonic acid groups. The compounds have therapeutic properties.ALSO:Medicaments, especially useful for combating virus diseases, comprise sulphonated triaryl-amino-triazines of the formula <FORM:0754071/VI/1> in which all the trazine rings are bound to one another by -NH-R-NH- residues and every ring carbon atom not bound to such a residue is bound to -NH-R-NH2, and R represents a residue of the formula Ar or Ar-Z-Ar, in which Ar is an arylene residue substituted by free or esterfied sulphonic acid groups and Z is a direct link or a bridge member, the molecular weight over 4,000, and their salts.  The compounds may be made up in the form of tablets, dragees, salves, creams, solutions, suspensions or emulsions for enteral, parenteral or topical administration. Suitable carriers are water, gelatine, lactose, starches, magnesium stearate, talc, vegetable oils, benzyl alcohols, gums, polyalkylene glycols, cholesterol and the material known under the registered Trade Mark "Vaseline."  The preparations may be sterilised and may contain preserving, stabilizing and wetting agents and salts for regulating osmotic pressure and buffers, and may also contain other therapeutic substances.
Patent GB-1503649-A (GB)
Title: Process for the preparation of alpha-keto acids
IPC: C07C59/76
Filed: 1974-06-28
Abstract: 1503649 Preparation of α-keto acids GLAXO LABORATORIES Ltd 27 June 1975 [28 June 1974] 28867/74 Heading C2C α-Keto acids of the formula R.CO.COOH, in which R is a carbocyclic or heterocyclic aryl group, are obtained by oxidizing the corresponding methyl ketone of the formula R.CO.CH 3  in aqueous solution with an inorganic nitrite salt and hydrochloric or sulphuric acid. The nitrite salt may be an alkali metal or alkaline earth metal salt and the reaction is suitably conducted at a temperature of 40- 100‹ C., and the reaction may be carried out in two stages, between which the pH is raised and throughout each of which the nitrite salt is added steadily. In a modification of the process the corresponding aldehyde of the formula R.CO.CHO, which may be obtained as an intermediate in the above process, may also be oxidized to the acid. In specific examples, R is furyl, thienyl and phenyl, and the products may be isolated in the form of their salts.
Patent GB-464513-A (GB)
Title: Improvements relating to the manufacture of rolled metal sheets
IPC: B21B1/26
Filed: 1935-10-19
Abstract: 464,513. Rolling. BRASSERT & CO., Ltd., H. A., and BRASSERT, H. A. Oct. 19, 1935, No. 28910. [Class 83 (iv)] A slab is reduced in several passes in a roughing reversing mill 1 provided with heating chambers 2, 3 (without coilers) one at each side of the mill of sufficient length to maintain the strip hot and it is then passed through the heating chamber 3 into a four high finishing tandem train 4 where it is hot rolled and may then pass to a coiler.
Patent GB-975394-A (GB)
Title: Cephalosporin c
IPC: C12P35/06
Filed: 1963-07-22
Abstract: Cephalosporin C is produced by fermenting a Cephalosporin C-producing mould of the species of which Cephalosporium C.M.I. 49,137 (A.T.C.C. No. 11,550) is a member in a nutrient medium containing sources of carbon and nitrogen, mineral salts and phenylacetic acid amide. Specification 810,196 is referred to.
Patent GB-1345205-A (GB)
Title: Rotary-percussion gang drill
IPC: E21B4/16
Filed: 1971-06-21
Abstract: 1345205 Boring earth &c SUMMA CORP 21 June 1971 [22 June 1970] 28989/71 Heading E1F In a drill assembly which is rotated about a longitudinal axis and comprising percussive drills D fixed parallel to the axis and having anvil bits 50, 52, bits 52 offset from the axis are each rotatable in its drill. The edges of the drills 52 have cutting inserts 56. A pipe supplying driving air to the drills is attached to a stub 22 and serves to rotate the assembly. The bit 50 is on the axis and is not rotatable relative to its drill. In modifications all the bits are rotatable and offset from the axis, and the bits have central ducts for discharge of flushing fluid.
Patent GB-1130855-A (GB)
Title: Improvements in or relating to polyester resins
Inventor: VANCSO IBOLYA
IPC: C08G63/52
Filed: 1966-01-08
Abstract: 1,130,855. Unsaturated polyesters. MUANYAGIPARI KUTATO INTEZET. 8 Jan., 1966, No. 29019/65. Headings C3P and C3R. Cross-linked polyester resins are prepared by reacting a di- or polyhydric alcohol with maleic acid and/or anhydride whilst adding a compound having a single free carboxylic acid group and having from 6 to 20 carbon atoms and copolymerizing the unsaturated polyester so obtained with a vinyl and/or an allyl monomer in the presence of an initiator. The monocarboxylic acid compound appears to react with polyesters present to produce semiesters and polyesters both having molecular weights lower than the initial polyester. Suitable compounds are lauric, palmitic, stearic, oleic and ricinoleic acids and phthalic acid monoethyl ester. In examples polyesters are prepared from (1) phthalic anhydride, ethylene glycol and maleic anhydride in the presence of phthalic acid monoethyl ester, styrene is added and the polyester is cured with benzoyl peroxide; (2) maleic anhydride and 1,4-butylene glycol in the presence of stearic acid and curing as in (1).
Patent GB-1079247-A (GB)
Title: Method of manufacturing synthetic leather
IPC: D06N3/12
Filed: 1964-07-14
Abstract: A composition which, when deposited on a substrate, is capable of producing a leather-like material, is made by cutting into short lengths fibres made up from two or more different polymers, and immersing the cut fibres in a solvent which selectively dissolves one of the polymers making up the fibres to form a polymer solution having fibres dispersed therein. The soluble polymer may constitute 60% or more of the composite fibre. Examples describe partially dissolving mixed-composition fibres of nylon 6 and polypropylene dissolved in MeOH/calcium chloride, (1) methoxymethylated nylon and polyethylene in methanolic calcium chloride or sodium nitrate and (2) polyacrylonitrile and a polyurethane in potassium thiocyanate solution.ALSO:Synthetic leather is produced by cutting into short lengths fibres made up from two or more different polymers immersing the cut fibres in a solvent which selectively dissolves one of the polymers making up the fibres to produce a polymer solution having fibres dispersed therein, and applying the solution to a base cloth and removing the solvent thereform.  Examples describe making synthetic leathers by (3) making a non-woven web from mixed-composition fibres of 6-nylon and polypropylene, treating the web successively with an emulsion of polymethyl acrylate, aqueous methanolic calcium chloride and methanolic calcium chloride, drying the web, applying thereto a solution made by partially dissolving mixed-composition fibres of methoxymethylated nylon and polyethylene in methanolic calcium chloride, removing the solvent from the solution and spraying the product with a pigmented aqueous emulsion of polyethyl acrylate, and (4) making a non-woven web from mixed-composition fibres of polyvinyl chloride and polyacrylonitrile, treating it with aqueous potassium thiocyanate, applying thereto a solution made by partially dissolving mixed composition fibres of polyacrylonitrile and a polyurethane in potassium thiocyanate solution, and drying the coated web.
Patent GB-1422852-A (GB)
Title: Copolyetheresters
IPC: H01B3/42
Filed: 1973-06-19
Abstract: 1422852 Copolyetheresters E I DU PONT DE NEMOURS & CO 19 June 1973 [20 June 1972] 29059/73 Heading C3R A segmented thermoplastic copolyetherester comprises long- and short-chain ester units derived from a poly-(alkylene oxide)glycol of molecular weight 400-6000 and a carbon to oxygen ratio of 2À0 : 1 to 4À3 :1, a diol of molecular weight not greater than 250, and a dicarboxylic acid of molecular weight not greater than 300, at least 70% of which is 2,6- naphthaline dicarboxylic acid, and wherein at least 70% of the short-chain ester units are identical and the copolyetherester contains 66- 95% by weight of the short-chain ester units. The examples describe Copolyetheresters prepared from (a) dimethyl-2,6-naphthalene dicarboxylate, 1,4-butanediol and poly-(tetramethylene ether)glycol of molecular weight 980, poly-(propylene ether)glycol of molecular weight 1000 or a block copolyether glycol containing ethylene ether and propylene ether units of molecular weight 1150, and (b) dimethyl-2,6- naphthalene dicarboxylate, ethylene glycol and poly-(tetramethylene ether)glycol of molecular weight 980 or the above block copolyether glycol. The copolyetheresters may be mixed with stabilizers and inorganic fillers, e.g. carbon black, silica gel, alumina, clay or chopped fibreglass.
Patent GB-210165-A (GB)
Title: Improvements in signalling apparatus for vehicles
IPC: B60Q1/34
Filed: 1922-10-26
Abstract: 210,165. Rolph, W. M. Oct. 26, 1922. Road-traffic signals on vehicles; semaphore signals. -A stopping indicator of the type, in which an arm oscillates about an horizontal position is operated by a wire attached to the brake lever, causing the withdrawal of a holding member and allowing movement of the arm by means of a counterweight. The arm E normally occupies a frame A, and comprises a loop of metal E<1> in which is a sheet E<2> of celluloid coloured red, and the counterweight E<3>. In one form shown in Fig. 1, thespindle D has a projecting pin D<1> engaged by a. spring-pressed plunger F, so that the arm E is released upon withdrawal of the plunger by thewire H. In another form shown in Fig. 5, a pin F<1> on the plunger F normally lies in a recess N<1> in a cam plate N on the spindle D, and upon depression of the plunger, the cam issuch that the pin F' starts the swinging movement. Other modifications are described in which (1) the plunger F rotates a lever from the path of a pin on the spindle D by a pin and-slot movement, and (2) the arm E carries a crosspiece on which are formed knife-edges and against, which bears a curved arm moved away upon depression of the plunger F.
Patent GB-920866-A (GB)
Title: Process for the manufacture of minute capsules and the capsules obtained by such process
IPC: B01J13/08
Filed: 1961-08-15
Abstract: Microcapsules, each composed of a solid nucleous enclosed and retained by a wall of a water-insoluble, film-forming polymer material, are made by dissolving the polymer material in a first organic solvent liquid, adding, with agitation at a temperature above ambient, a second organic liquid which is miscible at least to a large extent with the first liquid but which is a non-solvent for the polymer material, thus causing a liquid phase composed of the first solvent liquid rich in dissolved polymer material to separate from the solution and deposit on the particles of nucleus material introduced at any time up to this point into the system, and thereafter lowering the temperature of the system to ambient and repeatedly adding more of the second liquid which removes the first liquid from the deposited material and brings the capsule walls to a rigid and self-supporting condition.  Specified systems are a toluene/ethanol (4:1) solution of ethyl cellulose, methyl ethyl ketone or benzene solution of polymethyl methacrylate and an acetone solution of cellulose acetate butyrate, a petroleum fraction (B.P. 70+ DEG C.) being used as the second (nonsolvent) liquid in each case.  Specific examples relate to the encapsulation of ammonium dichromate and reference is also made to pharmaceuticals.ALSO:Microcapsules, each composed of a solid nucleous enclosed and retained by a wall of a water-insoluble, film-forming polymer material, are made by dissolving the polymer material in a first organic solvent liquid, adding with agitation at a temperature above ambient a second organic liquid which is miscible at least to a large extent with the first liquid but which is a non-solvent for the polymer material, thus causing a liquid phase composed of the first solvent liquid rich in dissolved polymer material to separate from the solution and deposit on the particles of nucleus material introduced at any time up to this point into the system, and thereafter lowering the temperature of the system to ambient and repeatedly adding more of the second liquid which removes the first liquid from the deposited material and brings the capsule walls to a rigid and self-supporting condition.  Specified systems are a toluene/ethanol (4 : 1) solution of ethyl cellulose, methyl ethyl ketone or benzene solution of polymethylmethacrylate and an acetone solution of cellulose acetate butyrate, a petroleum fraction (B.P. 70 +  DEG  C.) being used as the second (non-solvent) liquid in each case.  Specific examples relate to the encapsulation of ammonium dichromate and reference is also made to pharmaceuticals.
Patent GB-675479-A (GB)
Title: Colour cinematography
IPC: G03B33/08
Filed: 1948-11-12
Abstract: 675,479. Colour kinematography. MILLAIS, W. Nov. 12, 1948, No. 29460/48. Class 97 (i). Black-and-white negative colour selection records are formed on groups of successive film frames, the first of each group being exposed through two filters in succession, the second through two other filters and so on, all the filters being different and all passing the whole spectrum apart from one narrow region; a positive print is then made and each frame is projected successively through two filters passing wavelengths lying within the range transmitted by the filters through which the corresponding frame of the negative was exposed. In one embodiment, a shutter is used, during exposure, having four clear sectors in which filters, say A, B, C, D, are mounted and alternate frames are exposed respectively through A and B in succession and through C and D in succession. For projection, a shutter assembly as shown in Fig. 4 is used. The disc 42 has eight transparent spaces in four of which filters A<SP>1</SP>, B<SP>1</SP>, C<SP>1</SP> D<SP>1</SP> are mounted. The frames exposed through filters A and B are projected through A<SP>1</SP> and B<SP>1</SP> in succession, and those exposed through C and D are projected through C<SP>1</SP> and D<SP>1</SP>. Fig. 7 shows, against a scale of mÁ the absorption of the filters A, B, C, D at a, b, c, d. The masking and flicker blades of the projector are replaced by the disc 34 coupled to rotate with the disc 42. Clear spaces 35, 36, 37, 38 register with the filters in the disc 42. The spaces 39 contain violet filters which act as flicker shutters and the spaces 40, 41 contain colour filters, divided into differently-coloured sectors, the whole of each space being also covered by a grey filter. These combinations act as masking shutters. The whole filter assembly, intended for use particularly in a 35 mm. film projector, rotates once for each passage of two film frames. An assembly for 16 mm. film projection is shown in Fig. 6. The masking blade 46 is composed of coloured sectors backed by a grey filter, the flicker blade 48 being a violet filter. This shutter rotates once for each film frame, the filter disc 42 being driven at half this speed through reduction gearing 50.
Patent GB-480429-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/00
Filed: 1937-10-28
Abstract: 480,429. Heating water. EWART, J. H., and EWART & SON, Ltd. Oct. 28, 1937, No. 29488. [Class 64 (i)] In gas-fired water heaters of the kind comprising a vertically disposed boiler with an internal flue compris ing an annular space 3 between outer ano inner water-containing annular chambers 1 2 through which water flows in succession, open-turn coils 8 of wire being soldered or welded with horizonta axes to the wall of the flue to conduct heat thereto, the coils 8 are placed solely on the radially inner wall of the flue and are of a diameter exceeding half the width of the flue. The coils, preferably of copper, are flattened against the wall or placed in annular grooves therein, separate coils being spaced vertically, the lowermost being smaller. The coil may be placed helically on the inner wall.
Patent GB-727475-A (GB)
Title: Improvements in or relating to the manufacture of artificial fruits gelled pharmaceutical products and the like
Inventor: ADAMS LESLIE ALFRED
IPC: A23L21/18
Filed: 1951-12-17
Abstract: Gelled bodies for use as artificial fruits or pharmaceutical products are produced by drop-moulding (see Group V), a solution of material being dropped into a gelling bath.  The solution may comprise 10 gr. of sodium alginate containing a chemical equivalent of colloidal calcium phosphate (as described in Specifications 716,112 and 724,178, [Group IV (b)], 5 gr. of sodium alginate, 500 gr. of sugar and 315 gr. of neutral glucose syrup, the whole being dissolved in 300 gr. of water and boiled down to 1,000 gr.  The glucose may be free from calcium.  If the glucose is acid or contains calcium, a small quantity of tetrasodium pyrophosphate may be added to the mix. The gelling bath for such a solution may be a 10 per cent. solution of citric acid containing 0.6 per cent of glassy sodium metaphosphate of the type known as Graham's salt.  A solution of any edible acid may be used as an acid setting bath.  A gelling bath containing a calcium salt may be used to gel sodium alginate.
Patent GB-1040390-A (GB)
Title: Gas turbine engine
Inventor: FREEMAN FREDERICK
IPC: F02C3/08
Filed: 1965-07-12
Abstract: 1,040,390. Gas turbine engines; combustion chambers. ROLLS-ROYCE Ltd. July 12, 1965, No. 29541/65. Headings F1G and F1L. A gas turbine engine comprises a centrifugal compressor 16, annular combustion equipment 23 and a radial inward flow turbine 17 which is disposed immediately adjacent the compressor, air from the compressor passing to the combustion equipment and the gases from the combustion chamber passing to the turbine. The combustion equipment has a combustion zone 26 at or adjacent the axially downstream end thereof and an outlet 27 at or adjacent the axially upstream end thereof. Substantially all the combustion and dilution air which enters the combustion equipment passes through the radially outer part of the periphery thereof. The radially outer wall 24 of the combustion chamber (Fig. 2, not shown) has inlet openings 30, 31, 32, air passing from the space 22 through the openings 30 constituting dilution air, while air passing from the space 22 through the openings 32, 31 constitutes primary and secondary combustion air respectively. Some air passes through openings 38 in the inner wall 25 to constitute dilution air. Further air passes through apertures 37 in both the inner and outer walls being guided by baffles 33 so as to effect film cooling of the combustion chamber walls. Further air also enters through openings 35, 36 in the axially downstream end wall of the combustion chamber for film cooling of the walls thereof.
Patent GB-759442-A (GB)
Title: Improvements in or relating to radio mirrors and lenses
Inventor: WALKER LOUIS EDWARD QUINTRELL
IPC: H01Q15/14
Filed: 1954-10-14
Abstract: A radio lens or mirror is constructed from one or more layers of woven fabric moulded into, or backed by, an insulating synthetic bonding material so that mechanical strength and rigidity is obtained.  The fabric may be formed with a warp (or weft) of glass fibre and a weft (or warp) in which some or all the filaments are metal wires.  Preferably glass fibre strands are incorporated in the fabric between the wires.  The lens or mirror may be formed by placing layers of the fabric on a forming mould and uniting the layers by painting on between each a resin bonding material preferably of modified polyester or other cold-curing thermo-setting type.  After drying the united structure is removed from the mould and is ready for use.  In forming non-polarized lenses or mirrors the layers of fabric are placed in position with the wires at right angles, or at any rate at a substantial angle.  For a polarizing mirror or lens the wires in all the layers are arranged parallel to each other.  In the formation of large surfaces each layer may consist of more than one sheet of fabric.  The mirrors or lenses may have the wires of one or more layers connected together so that a de-icing current can be passed through them.
Patent GB-1294347-A (GB)
Title: Microfilm etc reader or viewer
Inventor: STAIGER ULRICH
IPC: G03B21/11
Filed: 1970-06-18
Abstract: 1294347 Microfilm projectors EASTMAN KODAK CO 18 June 1970 [21 June 1969] 29661/70 Heading G2A A projector for selectively projecting images from a multiple image-bearing microfilm chip 10 mounted in an aperture card 14, comprises two projection assemblies 16, 18 separately mounted on supports 55, 56 of which one or both may be movable relative to the chip 10, each assembly including an illumination system 28, 29 whose optical axis is inclined to the perpendicular to chip 10, there being deviating prisms 30, 31 to direct the illumination beams perpendicularly through the chip. The projector has screens 24, 25 on to which images are thrown by projection lenses 42, 43 via mirrors such as 44, 46, 22.
Patent GB-1392237-A (GB)
Title: Suspension arrangements
IPC: F16L3/14
Filed: 1972-06-26
Abstract: 1392237 Gripping tools CAUSEWAY STEEL PRODUCTS Ltd 26 June 1973 [26 June 1972] 29897/72 Heading B4W [Also in Divisions E2 and F2] A hand tool for forming the end of a metal strap into a roll and by rotating the tool comprises a shank 30 having in the end thereof an open-ended slot 34 by which the strap is engaged.