baber/WOPTO huggingface dataset:
Patent GB-816524-A (GB)
Title: Self-centring and self-alining bore gauge
IPC: G01B5/12
Filed: 1957-02-06
Abstract: 816,524. Bore gauges. BRITISH PETROLEUM CO. Ltd., and SMITH, H. Feb. 6, 1957, No. 4067/57. Class 106 (2). A bore gauge comprises an elongated body 13 provided with a locating system of two or more sets of three or more levers 10, the sets of levers being spaced apart along the body 13, so that in use the body 13 is held centrally, in a tube being measured, by the levers 10. The levers 10 are pivoted at 44 to brackets 37, which are attached to rotatable annular members 38, 15, lockable by screws 39. The levers are moved outwards by pins 11 when air under pressure is supplied to bellows 20, thus expanding them and moving conical members 19 along guide pins 23, 24. A further bellows 31 is fitted inside a casing 27 to which an air line 28 and a pressure gauge 30 are connected. This bellows 31 is closed by a ball valve 33 adapted to be unseated by a pin 34 connected to the lower conical member 19. In use, the gauge is calibrated by inserting it into tubing of known bore and admitting air to the bellows 20, thus forcing the levers 10 outward, until rollers 40 contact the wall of the tubing. Meanwhile, air at a lower pressure is admitted to the casing 27 and compresses the bellows 31 against the action of a spring 32 until the ball 33 is forced off its seat, whereupon the pressure is released. Thus the pressure in the casing 27 will stabilize at a value dependent on the position of the pin 34 and hence on the bore of the tubing. This is repeated with other bores of known size, thus calibrating the gauge. To alter the size of tubing which may be measured, the annular members 38, 15 may be undamped, .rotated and reclamped, thus allowing the pins 11 to act at a different point on the levers 10, and the gauge then recalibrated.
Patent GB-150233-A (GB)
Title: Improvements in direction indicators for motor vehicles
IPC: B60Q1/34
Filed: 1920-02-10
Abstract: 150,233. Collins, A. E. Feb. 10, 1920. Road-traffic signals on vehicles.- A device to indicate to other vehicles the intention of the driver consists of plates carried by sliding rods which can be selectively operated by a gear pinion to expose the desired indication at each side of the vehicle. Fig. 1 shows a plan view of the casing 7 containing the rods, which is situated above the dashboard. The rods 16 - - 19 have rack portions 20, Fig. 2, engaging the top of the pinion 9, and rods 22 - - 25 have rack portions 26 engaging the bottom of the pinion 9. Springs 36, 37 press the rods away from the casing and the rods to the left slide between two rollers 30, 31 and those to the right between rollers 34, 35. Cams, of which one 47 is shown, normally press the rod so that racks 20, 26 are out of engagement with the pinion 9, one cam being provided to each pair of rods. When it is desired to expose any signal, a button on the front of the casing corresponding thereto is turned so as to place the desired cam in an horizontal position and allow the corresponding rods to engage with pinion 9, which is then rotated by a hand-wheel in front of the casing. The rods carry plates 53, 54 which are exposed to the sides and show the desired indication both to back and front. The hinged side doors 55 fall down when the plates are withdrawn.
Patent GB-1534275-A (GB)
Title: Herbicidal compositions containing 1,4-quinones or derivatives thereof
IPC: A01N35/06
Filed: 1976-01-30
Abstract: 1534275 Herbicides SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 30 Jan 1976 [30 Jan 1975] 4104/75 Heading A5E [Also in Division C2] A herbicidal composition comprises a carrier together with as active ingredient a compound having one of the following general formulae:- wherein R<SP>1</SP> is hydrogen, alkyl, alkoxy, alkylcarbonyl, cycloalkyl, or an -NO or -CONR<SP>3</SP>R<SP>4</SP> group; R<SP>2</SP> is hydrogen, alkyl, alkoxy, alkylcarbonyl, cycloalkyl, aryl, or an -NO or -CONR<SP>3</SP>R<SP>4</SP> group; X is halogen, alkoxy, or an -NR<SP>3</SP>R<SP>4</SP> or -NHCOO-alkyl group; R<SP>3</SP> and R<SP>4</SP> each individually represent hydrogen, alkyl, aminoalkyl, or alkylaminoalkyl; Y and Z together with carbon atoms 1 and 2 represent a benzene, thiophen, thiadiazole or thiazole ring each of which rings may be substituted by an alkyl group; and R is alkyl, alkylcarbonyl, arylcarbonyl, the alkyl or aryl groups of which may be optionally substituted by halogen, or where the compound is capable of forming a quaternary ammonium salt, the quaternary ammonium salt thereof; provided that (a) for the groups alkoxy, alkylcarbonyl, NO and -CONR<SP>3</SP>R<SP>4</SP>, R<SP>1</SP> is not the same as R<SP>2</SP>; (b) in formula (I) R<SP>1</SP> or R<SP>2</SP> can only be an alkylcarbonyl group when Y and Z together with carbon atoms 1 and 2 form a thiophen, thiazole or thiadiazole ring; (c) when R<SP>1</SP> is hydrogen and R<SP>2</SP> is alkylcarbonyl X does not represent an -NH-alkyl group; and (d) when R<SP>1</SP> is hydrogen and R<SP>2</SP> is alkyl, X does not represent an -NHCOO-alkyl group.
Patent GB-1003505-A (GB)
Title: Improvements in or relating to the manufacture of a high-porosity lime-silica mass
IPC: C04B28/18
Filed: 1964-01-31
Abstract: Cellular mass, e.g. for gas storage, is obtained by cooking an aqueous lime-silica dispersion containing 0.3 to 10% of an organic non-gelling suspending agent.  Agents specified are an alkyl (e.g. ethyl), silicate, a hydroxyalkyl cellulose (hydroxy ethyl or ethyl hydroxyethyl cellulose) or polyvinyl alcohol.  Colloidal silica and asbestos may also be included.
Patent GB-177333-A (GB)
Title: Improvements in tyres for automobile and like wheels
IPC: B60C7/10
Filed: 1921-02-07
Abstract: 177,333. Fornaca, G. Feb. 7, 1921. Block tyres. - Rubber blocks 2 are secured to steel base-plates 1 from which tongues 3, 4 are struck-up to engage the rubber, the plates and tongues being formed in a simple shearing operation. The base-plates may be secured to the wheel rim by bolting, riveting, soldering, &c.
Patent GB-104405-A (GB)
Title: An Improved Instrument for Measuring and Indicating Angles.
Inventor: MONK ROBERT
IPC: G01C9/12
Filed: 1916-03-23
Abstract: 104,405. Monk, R., and Neville, C. R. March 23, 1916. Levels; clinometers. -An instrument for measuring and indicating angles, which may he connected to shafts and thus used for set. ting valves, cranks, cams, eccentrics, &c., in their correct angular relationship, of the kind which consists of a level-indicator such as a pendulum and a rotatable disk, is provided with a straight-edge 9 which is connected to a rotatable lever 3, being preferably at right-angles thereto. The lever 3 carries a fiducial mark which is made to register with a pointer 6 carrying the pendulum. Pins 5 on the lever 3 act as stops for the pointer. By means of the straight-edge 9, the zero mark, as well as lines corresponding with desired positions of valves &c., may be drawn upon the disk or upon a chart carried thereby. The disk may have a permanent zero mark.
Patent GB-765529-A (GB)
Title: Tetrahydrofuran derivatives and their conversion to pyridine diols
IPC: C07D213/69
Filed: 1955-02-14
Abstract: The invention comprises 2 : 5-di-(C1-C6)-alkoxy - 2 - carbamyltetrahydrofurans and their conversion to 2 : 3-pyridinediols by reaction with an aqueous medium having a pH value not exceeding 7. The above tetrahydrofurans may be substituted by alkyl, cycloalkyl, aryl and/or aralkyl radicals in the 3-, 4- and 5-positions, while "alkoxy" includes methoxy, ethoxy, propoxy, butoxy, amyloxy and hexyloxy.  The 2 : 5-di-(C1-C6)-alkoxy-2-carbamyltetrahydrofurans are prepared by reacting an ester (preferably a methyl ester) of a corresponding 2 : 5 - di - (C1-C6) - alkoxy - tetrahydrofuroic acid with ammonia.  The conversion to the 2 : 3-pyridinediol is preferably effected at atmospheric pressure under reflux temperatures between 60-120 DEG  C. and in presence of hydrochloric, sulphuric or acetic acids.  The examples describe the preparation of 2 : 5-dimethoxy-2-carbamyltetrahydrofuran and 2 : 3-pyridinediol.  The preparation of n-cetyl-(2 : 3-dihydroxy-pyridinium) chloride is also referred to.
Patent GB-948854-A (GB)
Title: Improvements relating to non-generated straight bevel gears
IPC: F16H55/08
Filed: 1962-02-05
Abstract: 948,854. Gear-cutting. GLEASON WORKS. Feb. 5, 1962 [March 3, 1961], No. 4378/62. Heading B3K. [Also in Division F2] In a pair of meshing bevel gears the side of each tooth 14, Fig. 1, is a surface or revolution form-cut by rotating a tool about a stationary axis 23-24, Fig. 2 (Fig. 2 being a transverse section in the plane 15-17 of Fig. 1 perpendicular to line 15-16) so that each surface is convex in any plane which contains the axis of revolution 23-24, and concave in any plane therethrough perpendicular to said axis. The tooth surfaces are such that tangent point contact exists between mating tooth sides in every phase of mesh and that in one phase the contact is at a middle point of the tooth sides, the contacting sides in this phase being relatively convex in a plane containing the contact normal and the common cone apex of the gears. The Specification contains the necessary mathematical relationships to obtain such convexity. Preferably both sides of a tooth slot are formed about the same axis 23-24. The toothe profile may be involute or other shape, but is preferably of circular arc form as described in U.S.A. Specification 2,230,418.
Patent GB-1426541-A (GB)
Title: Cephalosporanic derivatives process for their preparation and compositions incorporating them
IPC: C07D501/08
Filed: 1974-01-31
Abstract: 1426541 Cephalosporan derivatives ROUSSEL-UCLAF 31 Jan 1974 [31 Jan 1973] 04466/74 Heading C2C The invention comprises compounds of formula and their acid or base addition salts, wherein Y is NH 2 , H, or NHCO 2 Z (Z=C 1-5  alkyl); R<SP>4</SP> is HO-substituted Ph or (when Y is H) sydnone or Ph-substituted sydnone; R<SP>5</SP> is H or (except when Y is NH 2 ) a residue easily removable by acid hydrolysis or by hydrogenolysis; and R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are each C 1-3  alkyl, or one of them is H. In examples, the esters (e.g. where R<SP>5</SP> is Me 3 C) are prepared by reacting the appropriate 7-aminocephalosporin derivative with dicyclohexylcarbodiimide and an arylacetic acid (which, when R<SP>4</SP> is p-HOC 6 H 4  and Y is NHCO 2 CMe 3  had been purified via the ethylamine salt and optically resolved via the yohimbine and quinine salts). Therapeutic compositions having antibacterial activity comprise compounds of the above formula, and may be administered orally, perlingually, topically, transcutaneously, rectally or by aerosol.
Patent GB-564427-A (GB)
Title: Improvements in current control systems
IPC: G11B7/00
Filed: 1943-03-19
Abstract: 564,427. Optical sound - recording apparatus. RADIO CORPORATION OF AMERICA. March 19, 1943, No. 4497. Convention date, March 24, 1942. [Class 40 (ii)] [Also in Group XL] A current control system comprises a source of electrical currents, means for obtaining an average current proportional to the amplitude of said currents, and an expander-compressor combination for causing a variation of said average current to make it follow the peak values of said electrical currents during increases in said currents. This control system may be used to control the carrier current amplitude in radio broadcasting or noise-reduction devices in sound-recording. As shown in Fig. 1, a sound-recording system comprises a microphone 5, a preamplifier 6, a mixer 7, an amplifier 8, a signal compressor unit 9 such as described in U.S.A. Specification 2,255,683, a recorder amplifier 12, and a galvanometer 13 for modulating light from a lamp 20 to a film 30 by the optical devices shown. The output of the compressor unit 9 is also led to a control expander 15 followed by a control compressor 16 (both similar to the unit 9), and from thence to a noise-reduction unit 17 which then controls the position of a noise -reduction shutter device 19 to make it follow the rising peaks of the sound as indicated by the line A, instead of clipping these peaks as indicated by the line B if the shutters do not open fast enough, or opening too widely as indicated by the line C if the shutters open too quickly.
Patent GB-415052-A (GB)
Title: The manufacture of carbohydrate derivatives
IPC: C08B31/00
Filed: 1933-02-14
Abstract: Derivatives of cellulose or other carbohydrate such as starch or dextrin are obtained by reaction with an unsaturated hydrocarbon containing an ethylene linkage or a substitution derivative thereof containing only non-reactive substituent groups.  The reaction may be carried out at high pressure and elevated temperature.  Acid or alkaline catalysts such as sulphuric acid, phosphoric acid, bisulphates, sulphonic acids, alkyl sulphuric acids, hydrohalide acids, caustic soda, lime, ammonia, organic bases and also salts of iron, copper, zinc, and tin, may be present.  The reaction may take place in the presence of water, alcohols, ethers, aromatic or aliphatic hydrocarbons, or acids.  Cellulose may be pretreated with acids, alkalis, or salts.  It may be in the form of cotton linters, grass, wood pulp, yarns, or fabrics.  Partially esterified or etherified cellulose or cellulose derivatives which yield free hydroxyl groups under the conditions of the reaction may be employed. The unsaturated hydrocarbon may be ethylene, propylene, butylenes, amylenes, hexylenes, cyclohexene, cyclo-hexadiene, hydronaphthalenes, styrene, stilbene, naphthyl-ethylenes, acenaphthylene, or a compound obtained by splitting off hydrochloric acid from benzyl chloride. Mixtures obtained by cracking petroleum oils may be used.  Nitro, amino, and alkoxy substitution products such as safrol, or nitrostyrene, and also salts of acrylic, crotonic, angelic, cinnamic, or other unsaturated acid may be used.  The cellulose or other carbohydrate may be esterified or etherified simultaneously with or subsequently to the reaction with an unsaturated hydrocarbon.  The products may be used for making artificial silk, ribbons, films, lacquers, varnishes, plastics, and insulating media.  Those containing hydrophile groups such as hydroxy, carboxy, or sulphonic groups may be used as sizes.  In an example, cotton or wood pulp is pretreated with isopropyl ether and sulphuric acid.  Cyclo-hexene is added and the mixture is heated under pressure.  The cellulosic material is separated from liquid and it may then be acetylated or benzylated.  In another example, cellulose pretreated as in the first example is heated under pressure with isobutylene gas.  In another example, cellulose pretreated with sulphuric and phosphoric acids dissolved in benzene is heated under pressure with styrene. Specifications 249,173, [Class 2 (ii)], and 407,018 are referred to. The Provisional Specification refers also to the production of derivatives of glycols, glycerol, erythrite, pentaerythrite, sorbitol, mannitol, and other polyhydric alcohols.
Patent GB-1139503-A (GB)
Title: The manufacture of 1:1 cobalt complexes of azo dyestuffs
Inventor: MACK PETER ALBERT
IPC: C09B45/10
Filed: 1965-02-02
Abstract: 1,139,503. Manufacture of cobalt complexes of azo dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Jan., 1966 [2 Feb., 1965], No. 4529/65. Heading C4P. 1:1 Cobalt complexes of metallizable azo dyes of formula in which A is a phenylene or naphthylene radical which may contain further substituents other than carboxylic or sulphonic acid groups, X is a hydroxy or carboxy group attached to A in ortho position to the azo group, B is a residue of a coupling component which couples in ortho position to a hydroxy group or in vicinal position to an enolized or enolizable keto group and which may contain substituents other than carboxylic and sulphonic acid groups are prepared by treating the metallizable azo dye with at least one molecular proportion of a complex of a cobaltous salt or hydroxide with ammonia or a primary, secondary or tertiary mono-amine. The complex of the cobaltous salt or hydroxide may be formed in situ by using the azo dye with cobaltous salt or hydroxide and ammonia or primary, secondary or tertiary amine. Alternatively the metallizable azo dye may be converted to its 2:1 complex with cobaltous compound and is then treated with cobaltous salt or hydroxide and ammonia or primary or secondary or tertiary monoamine, or is treated with the cobaltous salt or hydroxide complex with ammonia or primary, secondary or tertiary amine, there being at least one atomic proportion of cobalt per molecular proportion of metallized azo dye. Preferably the reaction is effected in an inert atmosphere. Complexed compounds containing ammonia, pyridine, γ-picoline, methylamine, dimethylamine, aniline and N-methylaniline are prepared.
Patent GB-1440282-A (GB)
Title: Polymer dispersions
IPC: C08F285/00
Filed: 1974-01-31
Abstract: 1440282 Copolymer dispersions; coating composition VIANOVA KUNSTHARZ AG 31 Jan 1974 [1 Feb 1973] 04613/74 Headings C3G and C3R  A dispersion in an organic liquid of a copolymer containing hydroxy groups is produced by reacting (A) from 10 to 30% by, weight of a copolymerizable polymer with (B) from 90 to 70% of copolymerizable ethylenically unsaturated monomers, at least one of which contains a functional hydroxy group, the reaction being carried out in an organic liquid in which polymer (A) is completely soluble and in which the dispersed copolymer formed is substantially insoluble and the said polymer (A) being the product formed by copolymerizing from 80 to 94% of p-tert. -butyl styrene with from 4 to 12% of glycidyl methacrylate and reacting the copolymer with from 2 to 8% of acrylic or methacrylic acid or a chloride thereof, the sum of components used in forming polymer (A) being 100%. Examples are given in which (a) p-tert-butyl styrene/glycidyl methacrylate copolymer produced in white spirit is reacted with methacrylic acid and the resulting solution is reacted with (i) methyl methacrylate, styrene, ethyl acrylate, 4-hydroxybutyl acrylate and acrylic acid, (ii) methyl methacrylate, ethyl acrylate, tripropylene glycol monomethacrylate and acrylic acid or (iii) methyl methacrylate, p-tert-butyl styrene, ethyl acrylate, 4-hydroxybutyl acrylate and acrylic acid or (b) a p-tert-butyl styrene/glycidyl methacrylate copolymer prepared as in (a) is reacted with acrylic acid chloride and the resulting solution is reacted with styrene, methyl methacrylate and 4-hydroxybutyl acrylate. The dispersion produced in (a) (ii) is mixed with a benzoguanamine - formaldehyde condensation product, partially etherified with butanol, and p-toluene sulphonic acid, applied to glass or steel panels and cured.
Patent GB-890398-A (GB)
Title: Process for the manufacture of foamed materials
IPC: C08J9/14
Filed: 1959-02-10
Abstract: In a process for the manufacture of foamed material a paste-like mixture of pulverulent polyvinyl chloride (or copolymer derived for the greater part from vinyl chloride) and a plasticizer is mixed under pressure with a liquefied gas, the mixture is caused to foam by releasing the pressure, and the foamed material is gelatinized. Copolymers which may be used are those of vinyl chloride with up to 50% of another vinyl ester, a maleic acid ester, an acrylic acid ester or a vinyl ether. Suitable liquefied gases are difluorodichloro-, difluoromonochloro-, monofluorodichloro- and monofluorotrichloromethane, tetrafluorodichlorethane, propane, butane and monomeric vinyl chloride.  The foamed material may be gelatinized by heating at 120 DEG -180 DEG C., by infra-red radiator, or in a high-frequency field.  Mixtures specified in the Examples are: (1)-(3) polyvinyl chloride and dioctyl phthalate; (4) polyvinyl chloride, tricresyl phosphate and silicic acid; and (5) 95% vinyl chloride-5% vinyl acetate copolymer and acetyl-tributyl citrate. Specification 737,367 is referred to.ALSO:In a process for the manufacture of foamed material a paste-like mixture of pulverulent polyvinyl chloride (or copolymer derived for the greater part from vinyl chloride) and a plasticizer is mixed under pressure with a liquefied gas, the mixture is caused to foam by releasing the pressure, and the foamed material is gelatinised.  Copolymers which may be used are those of vinyl chloride with up to 50% of another vinyl ester, a maleic acid ester, an acrylic acid ester or a vinyl ether. Suitable liquefied gases are difluorodichloro-, difluoromonochloro-, monofluorodichloro- and monofluorotrichloro-methane, tetrafluorodichloro-ethane, propane, butane and monomeric vinyl chloride.  The foamed material may be gelatinised by heating at 120 DEG -180 DEG C., by infra-fed radiation, or in a high-frequency field.  Mixtures specified in the examples are: (1)-(3) polyvinyl chloride and dioctyl phthalate; (4) polyvinyl chloride, tricresyl phosphate and silicic acid; and (5) 95% vinyl chloride-5% vinyl acetate copolymer and acetyl-tributyl citrate.  Specification 737,367 is referred to.
Patent GB-1064351-A (GB)
Title: Material conveying and distributing device
IPC: A01K5/02
Filed: 1965-02-03
Abstract: 1,064,351. Livestock feeding appliances; bunk feeders. DEERE & CO. Feb. 3, 1965 [Feb. 10, 1964], No. 4664/65. Heading AIM. [Also in Division B8] Animal feed from hopper 30 carried by assembly 20 is discharged along the length of trough 10 by a conveyer screw 23, the feed passing into the trough beneath the screw within the side wall 21 and 22 of the screw casing. Screw 23 is rotatably carried by side wall 21 and the walls 21 and 22 are carried by U-frames 51, the U-frames being pivoted at 45, connected to the walls at 56 and spring influenced at 64, and telescopically made at 54, 60. The angle of inclination and therefore the elevation of the screw may be adjusted by nut and screw means 76, 79 operated by handle 80. Operation. Handle 80 is turned to pivotally lower the walls 21 and 22 and screw 23, so that the walls and conveyer rest approximately on the floor 14 of trough 10. Motor 31 operates the screw 23 so that the feed passes along trough 10. This forms a first layer of feed in the trough. Handle 80 is then rotated to increase the inclination of U-beams 51 and thus to raise walls 21, 22 and screw 23. The rotation of screw 23 then feeds a second layer of feed in the trough 10. This is repeated. Further embodiments. The pivoted supports 51 may be replaced by pivoted supports from a floor situated above the assembly 20. Additionally (Fig. 5) sensing devices 105 and 115 may be inserted into the casing wall of the screw, the device 105 controlling a motor driving the nut screw device 97 and the device 115 controlling motor 31 so that the elevation of the assembly 20 may be limited and the motors automatically cut off.
Patent GB-203625-A (GB)
Title: Improvements in and relating to spokes
IPC: B60B1/00
Filed: 1923-02-19
Abstract: 203,625. Dean, L. Feb. 19, 1923. Spokes, securing and adjusting.-In means .for adjusting spokes wherein a nut on a threaded extension of the spoke bears against the inner side of the felloe, a cover is used to protect the nut and thread from dirt or the like. A threaded extension 6 of the spoke 3 carries a nut 10 bearing against the felloe, and a lock-nut 11. The extension 6 passes into a recess 9 in the felloe and a protecting sleeve 12 is attached to the felloe by screws through a flange.