baber/WOPTO huggingface dataset:
Patent GB-916493-A (GB)
Title: A method and apparatus for controlling the blending of two or more compatible liquids having different viscosities
Inventor: BRAZIER HORACE JAMES
IPC: B01F15/04
Filed: 1958-11-13
Abstract: 916,493. Mixing liquids. RAMSAY Ltd., FRANK. Nov. 26, 1959 [Nov. 13, 1958], No. 36605/58. Class 86. [Also in Group XIX] An apparatus and method for controlling the mixing of oils of differing viscosity to produce a mixture of a required predetermined viscosity compares the viscosity of the mixture with that of a sample of the required viscosity. The oils are brought to the same temperature by waterbath 1 which surrounds the apparatus. The sample of desired viscosity circulates continuously through the viscosity sensitive device 38; mixed oil is pumped by a pump P through a pipe 10 and the hollow walls of a cylindrical copper heat-exchanger 11 to a second viscosity-sensitive device 27, see Fig. 5 (not shown) and Fig. 3, identical with 38 and consisting of an outer rotatable cylinder 28 with attached cylindrical jacket 29, and an inner rotatable cylinder 32 attached to a shaft 34. The mixed oil enters by the pipe 22 and conduit 23, passes through the radial ports 25 into the space 30 between the outer cylinder 28 and its jacket 29, and thence by ports 31 to the space between the inner and outer cylinders. The outer cylinders of the two viscositysensitive devices are geared together by gears 47, 49 and are rotated by the motor 8, exerting a torque on the inner cylinders which will vary with the viscosity of the oil film between the cylinders. The shafts 34, 44 of the inner cylinders engage through forks 36, 42 the opposite ends of a lever 50 pivotable with a spindle 51. If the viscosity of the mixed oil and of the sample is the same, the torque on the two shafts 34, 44 will be equal and opposite and there will be no force exerted on the spindle 51. If the viscosities should differ, the differential effect will exert a couple effective to rotate the spindle 51 operating the micro-switches 56, 57 to effect suitable adjustment of the proportions of the different viscosity oils making up the mixture.
Patent GB-816080-A (GB)
Title: An improved focussing arrangement for cathode ray tubes
IPC: H01J29/68
Filed: 1956-11-24
Abstract: 816,080. Cathode-ray tubes. COLE Ltd., E. K., and LEVI ,J. E. Nov. 25, 1957 [Nov. 24, 1956], No. 36007/56. Class 39(1). An assembly including an annular focussing magnet J, Fig. 1, is mounted concentrically around the neck A of a cathode-ray tube by means of bearing surfaces D, E, at each end of the assembly so that the assembly is entirely supported by the tube neck. As shown the surfaces D. E are constituted by conically tapered surfaces on split annular wedges, preferably of polythene, and by cooperating surfaces formed on the circular inner edges of washers K 1 , Kz forming the ends of the magnet assembly. The forward wedge D also serves to centre a scanning coil assembly F. The rearward wedge E has a peripheral surface around which a metal clip H is tighened to cause the wedge to grip the tube neck and may also be provided with a projection to mate in a recess in the magnet assembly to prevent accidental rotation. The magnet J is of ferromagnetic ferrite material and is clamped between the two dished washers K 1 , K 2 , the washer K 2  housing a tubular magnetic sleeve S whose position may be altered longitudinally in order to adjust the focussing by means of screwthreaded tube T passing through a captive nut W and riveted to a flange of the sleeve S, guide rods U 1 , U 2  being provided. The forward dished washer W, serves as a housing for an ion trap magnet (not shown) and for a picture centering magnet N secured to a non-ferrous sheet metal stamping which is adjustable relative to the washer W, in two transverse directions at rightangles to each other.
Patent GB-1154557-A (GB)
Title: Improvements in or relating to a Process for the Production of Trichlorophenylacetic Acid.
IPC: C07C51/08
Filed: 1966-08-11
Abstract: 1,154,557. Trichlorophenyl acetic acid. TENNECO CHEMICALS Inc. 11 Aug., 1966 [12 Aug., 1965], No. 36090/66. Heading C2C. A triohlorophenylacetic acid mixture containing at least 75% of the 2,3,6-isomer is produced by chlorinating a trichlorotoluene mixture containing 60-70% of 2,3,6-trichlorotoluene with Cl 2  at 100-220 C. until an average of 1À1-1À5 atoms of chlorine have been introduced into the side chain, reacting this mixture with an alkali metal cyanide and hydrolysing the so formed cyanation mixture. The hydrolysis may be achieved by an alkali metal hydroxide or a strong mineral acid. The trichlorotoluene may be produced by chlorinating ochlorotoluene until the resulting mixture contains on average 2À5-3À0 gram atoms of chlorine per mole.
Patent GB-1500487-A (GB)
Title: Inspection device
IPC: G01B7/28
Filed: 1975-07-28
Abstract: 1500487 Measuring circularity of indents ROLLS-ROYCE Ltd 28 July 1975 [16 Aug 1974]  36140/74 Headings G1M and G1N Apparatus for testing a part-circular hole for surface irregularities comprises a sprin-loaded feeler 31, Figs. 1 and 3, advanced by a leadscrew controlled by a knob 25a until it contacts the surface 32 of the hole and rotating the feeler mounting assembly 11 to scan the complete surface, whilst recording the output of a differential transformer 27 whose armature 28 is attached to the feeler 31. The feeler assembly 11 is pivotally supported in a U-shaped frame 12 and rotated by a wormgear 23 engaging with a gear-wheel 21. The feeler 31 and armature 28 are mounted between spring blades 29 on a support member 24 which also carries the windings 26 of transformer 27, and is moved as a unit by rotating knob 25a.
Patent GB-503644-A (GB)
Title: A process for removing acid components from hydrocarbons or derivatives thereof
IPC: C10G19/04
Filed: 1937-12-30
Abstract: 503,644. Purifying hydrocarbons or derivatives. thereof. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Dec. 30, 1937, Nos. 36145, 36147 and 36148. Convention dates, Jan. 2, Feb. 8, and Oct. 12. [Class 91] [Also in Group IV] Hydrocarbons or derivatives thereof are freed from weakly acid-reacting organic substances by treating with an aqueous alkali solution in the presence of an alkali salt of an aliphatic carboxylic acid containing 3 to 5 carbon atoms, or of an aliphatic carboxylic acid derivative containing 3 to 7 carbon atoms and a neutral or basic polar group. Polar groups specified are, hydroxyl, amino, halide, sulphone, or nitrile. Sodium or potassium propionate, valerate, trimethyl acetate, isobutyrate, alpha-amino isobutyrate, alpha-hydroxy-nbutyrate, alpha-hydroxy valerate may be used. Hydrocarbons and derivatives treated are, petroleum or distillates such as gasoline, gas oil ; benzene, toluene, xylene; chlorinated hydrocarbons such as ehlorethane, ethylene dichloride, chlorbenzene, trichlorethylene, carbon tetrachloride; brombenzene ; nitro-compounds such as nitroethane, nitrobenzene; amylamine, aniline, pyridine, or petroleum bases. These contain small amounts of acids, phenols, thio-phenols, or mercaptans. The preferred alkali solution consisits of a 2 to 10N aqueous caustic soda or potash saturated with the salt. Ammonium hydroxide, quaternary ammonium bases, alkaline earth bases, or alkali carbonates may be used as the alkali. Extraction is effected at atmospheric 'temperature for a short period in mixers and settlers or in an extraction column. The process may be applied to de-sulphurizing petroleum. After extraction the petroleum may be further treated with Doctor solution, sodium hypochlorite solution, or oxidation with air in the presence of a catalyst, such as a heavy metal sulphide. The spent alkali solution containing the alkali salt and sulphur compounds is regenerated by steaming to remove the mercaptans, or if carboxylic impurities are present by solvent extraction and steaming preferably under reduced pressure. The latter impurities may be removed from the hydrocarbons by a pretreatment with caustic alkali, tripotassium phosphate, or fractional distillation. The Specification as open to inspection under Sect. 91 comprises.also the use of alkali salts of phenyl acetic or substitution products thereof. This subject-matter does not appear in the Specification as accepted but is contained in Specification 503,645.
Patent GB-368749-A (GB)
Title: Road construction
IPC: E01C3/06
Filed: 1930-12-01
Abstract: 368,749. Coated fabrics. MORRIS, C., 445, Cote des Neiges Road, Montreal, Canada. Dec. 1, 1930, No. 36182. Drawings to Specification. [Class 140.] A waterproof sheet for application between the layers of a road consists of a loosely woven material, such as hemp or burlap, which is soaked in asphalt so as to provide a coating on each side. A layer of asbestos or finely flaked mica or a combination of these materials may also be applied on either side. Reference has been directed by the Comptroller to Specification 1458/13, [Class 22, Cements &c.].
Patent GB-1130776-A (GB)
Title: Flameproofing of inflammable natural material or synthetic polymers
IPC: C08K3/016
Filed: 1966-08-12
Abstract: 1,130,776. Laminated foamed material. W. GLASER. 6 July, 1967 [12 Aug., 1966; 7 Nov., 1966; 14 Nov., 1966; 1 Dec., 1966; 1 March, 1967; 7 March, 1967; 31 March, 1967], Nos. 36199/66, 49728/66, 50835/66, 53916/66, 9684/67, 10745/67 and 14911/67. Heading B5N. [Also in Divisions C3 and D1] Sheets of expanded, extruded foams, e.g. of polyethylene or polystyrene, are laminated to each side of a foam polyurethane sheet which has been flameproofed by impregnation with a melt of a compound containing water of crystallization, e.g. potassium alum, and placed in a mould where the melt solidifies non- porously and in hydrated form inside the existing interspaces of the foam as a firm unit; the lamination being carried out while the above melt solidifies. In an example (1b the laminate contained steel wire netting between one or both sides of the impregnated polyurethane sheet and the expanded polyethylene sheet.
Patent GB-994985-A (GB)
Title: Improvements in or relating to hydraulic presses
IPC: B30B15/00
Filed: 1961-10-09
Abstract: 994,985. Hydraulic presses. A. FERRANTI. Oct. 9, 1961 [Oct. 7, 1960], No. 36248/61. Heading B5F. A drive system for the movable table 50 of a hydraulic press comprises at least two piston- and-cylinder groups 70, 74 and 72, 76, at least one of which is releasably connectable to the table by means of a locking device 80, 81. The device consists of a pair of arcuate segments which are pivotally mounted on pins 82, 83 on the table and have toothed segments 84, 85 engaging a screw 86 by means of which the arcuate segments can be engaged with, or disengaged from, a groove 94 in the piston 76. When the segments are engaged with the groove, both piston-and-cylinder groups are effective to move the table which, as described in Specifications 994,983 and 994,984, is secured to a boxlike structure 52, 54 having internal surfaces 56, 58 co-operating with guide surfaces 48 on a bracket formed by the plates 16, 18 of an archshaped structure B bolted to uprights 34, the latter also providing guide surfaces for the structure 52, 54. When the arcuate segments are disengaged from the groove, the piston-andcylinder 72, 76 can be operated independently of the piston-and-cylinder 70, 74.
Patent GB-420205-A (GB)
Title: Improved means for opening hermetically closed tins
Filed: 1933-12-27
Abstract: 420,205. Opening preserve tins. SADA, A., 4, Via Capuccini, Milan, Italy. Dec. 27, 1933, No. 36427. [Class 66] A lever member f, held engaged by lugs g, in an eyelet e soldered to the end of a tin, and formed with a turned - over end h terminating in a cutting edge, is adapted when raised by the ring i to pierce the end along an annular weakening formed therein and thereafter, on the ring being pulled in line with the lever, to tear out the portion within the weakening.
Patent GB-843219-A (GB)
Title: Improvements in or relating to steroid compounds
IPC: C07J5/00
Filed: 1955-08-03
Abstract: The invention comprises steroid compounds of the general formula: <FORM:0843219/IV(b)/1> wherein X represents <FORM:0843219/IV(b)/2> Y represents-OH or -OAc and Ac represents an alkanoyl radical having not more than 8 car-bon atoms, and the preparation thereof by successively brominating in the 4-position to form the corresponding 4-bromo compound and dehydrobrominating a compound of the formula: <FORM:0843219/IV(b)/3> wherein X and Y have the above significance. The bromination is preferably carried out with bromine in the presence of sodium acetate, and the dehydrobromination is preferably carried out with semicarbazide to form a semicarbazone which is then treated with pyruvic acid.  In the examples:-(1)4-pregnene-1,17 a ,21-triol-3,11, 20-trione 1,21-diacetate is prepared by brominating pregnane-1,17 a ,21-triol-3,11,20-trione, 1,21-diacetate to form the corresponding 4-bromo compound and dehydrobrominating the 4-bromo compound with semicarbazide hydrochloride and pyruvic acid; (2) by following the procedure of (1), 4-pregnene-1,17 a ,21-triol-3,11,20-trione 21-acetate, 4-pregnene-1,11b ,17 a ,21-tetrol-3,20-dione 1,21-diacetate and 4-pregnene-1,11b ,17 a , 21-tetrol-3,20-dione 21-acetate are prepared the corresponding 4-bromo-pregnanes being the intermediate compounds  Steroid compounds of the general formula:  <FORM:0843219/IV(b)/4> wherein X, Y and Ac have the above significance, are prepared by treating the required 11-substituted 21-ester of 1-pregnene-17 a ,21-diol-3,20-dione with an epoxidizing agent e.g., perbenzoic, monoperphthalic or peracetic acid to form the corresponding 1,2-epoxy compound, treating the epoxy compound with anhydrous hydrohalic acid such as hydrogen bromide in chloroform or hydrogen iodide in glacial acetic acid to form the corresponding 2-halo compound, dehalogenating the halo-compound with Raney nickel in acetic acid or with hydrogen and palladium-on-calcium carbonate catalyst to form the required compound of the above general formula in which Y represents the OH radical, and when required, acylating the 1-hydroxy compound as required to form a compound of the above general formula in which Y represents the -OAc radical.  In the examples the preparations of 1,2-oxido-pregnane-17 a ,21-diol-3,11,20-trione 21-acetate, 2-bromopregnane-1,17 a ,21-triol-3,11,20-trione 21-acetate, pregnane-1,17 a ,21-triol-3,11,20-trione 21-acetate and 1,21-diacetate, 1,2-oxido-pregnane-11b ,17 a ,21-triol-3,20-dione 21-acetate, 2-bromopregnane-1,11b ,17 a ,21-tetrol-3,20-dione 21-acetate and pregnane-1,11b ,17 a ,21-tetrol3,20-dione 21-acetate and 1,21-diacetate.  1,4-Pregnadienes are prepared by treating the 1-substituted-4-pregnenes of the above general formula with an acid or a base such as alumina and tetramethylammonium hydroxide. The preparations of 1-dehydrocortisol 21-acetate and 1-dehydrocortisone 21-acetate from the corresponding 1-hydroxy-4-pregnenes are described.
Patent GB-1474922-A (GB)
Title: Apparatus for post forming heat-formable laminates
IPC: B29C43/52
Filed: 1974-08-08
Abstract: 1474922 Folding and finishing edges of non- metallic sheet meterial STEELCASE Inc 8 Aug 1974 [8 Aug 1973] 36630/76 Divided out of 1474921 Heading B5K The subject matter is identical to that disclosed in Specification 1,474,921 but the claims relate to apparatus for post forming a laminate around the edge of a substrate, comprising means (30) to support a substrate (1) having a laminate covering (2) with a portion (3) overhanging an edge (5) of the substrate; a heater (50) arranged to embrace the edge of the portion (3) of a substrate supported by the supporting means; means to move the heater (50) and the supporting means relative to one another so that the heater is moved into and out of its laminate embracing position; and means (70) to form the portion (3) of the laminate over the edge (5) of the substrate after the portion (3) has been heated by the heater.
Patent GB-1145132-A (GB)
Title: Mass spectrometers
Inventor: HELMER JOHN COLIVILLE
IPC: H01J49/14
Filed: 1966-08-17
Abstract: 1,145,132. Mass spectrometers. VARIAN ASSOCIATES. 17 Aug., 1966, No. 36883/66. Heading H1D. In a dual orbit magnetic mass spectrometer ions of mass range 1 to 10 and ions of mass range 10 to 100 follow respective trajectories 28 and 27 and are collected simultaneously at collectors 44 and 36 when the accelerator voltage is swept from 1,000 to 100 volts, the magnetic polepieces being so shaped that ions in each trajectory enter and leave the field at 90 degrees to the field boundary. As shown the polepieces 22 have semi-circular disc-like terminations 37 towards the ion source 13. The radius of curvature of the trajectory 28 for the lighter ions is smaller by a factor of #10= 3À16 than the radius of curvature of the trajectory 27 for the heavier ions, and the deflection arcs are respectively 120 and 135 degrees. The ion source 13 is of the electron beam bombardment type employing a flat electron stream which is collimated by the fringing field of the spectrometer magnet and a mesh grid electrode between the ionization chamber and the ion accelerator electrode. Suitable dimensions and spacings and voltage values and values of magnetic field strength are given.
Patent GB-329338-A (GB)
Title: Improvements in or relating to wire-spoked wheels for use on vehicles and for other purposes
IPC: B60B27/00
Filed: 1928-12-13
Abstract: 329,338. Baker, F. W. Dec 13, 1928. Hubs; detachable wheels; spokes, securing and adjusting.-In a wheel comprising a two-part hub each carrying a set of wire spokes, a resilient mounting is fitted between the hub-part. In the form shown in Fig. 1, the spokes 3 on the outer hub-part 13 are of the hairpin type described in Specification 311,876, and are tensioned by wedges 47 on a sleeve 48 which is adjusted by eccentrics 49. The inner hub-part 43 is bolted to the brake-drum 7, rubber &c. sleeves 44 being fitted around the bolts 6. A rubber ring 42 is fitted between the adjacent parts of the hub-elements. In the modification shown in Fig. 2, the spokes 3 are carried by a cap 20 which is adjusted axially of the hub-part 13 by means of a single bolt 24. In the further modification shown in Fig. 3, a resilient metal ring 56 is fitted between the hub-parts 13, 51. In this form, the wedgering 58 by which the outer set of spokes is tensioned is adjusted by thrust-bolts 60 bearing, through balls 61, against lugs 62 on the hubpart 13.
Patent GB-1275708-A (GB)
Title: Process and compositions for combating dental calculus in animals
IPC: A23K1/18
Filed: 1970-07-31
Abstract: 1275708 Enzyme-containing pet foods MONSANTO CO 31 July 1970 [1 Aug 1969] 37125/70 Heading ASB The formation of dental calculus in pet dogs and cats is combated by feeding the animals on a pet food comprising a neutral protease, optionally in admixture with alkaline protease and/or amylase. The invention includes such pet foods.
Patent GB-1224364-A (GB)
Title: Improvements in or relating to magnetic valves
Inventor: BLACKFORD RAYMOND H
IPC: F16K15/14
Filed: 1968-08-03
Abstract: 1,224,364. Valves. DURABLA MFG. CO. 3 Aug., 1968, No. 37142/68. Heading F2V. A magnetic valve comprises a seat member 20 having formed therein flow ports 23, a stopmember 22, a stem 21 which retains the seat and stop-members in a predetermined relative separation, and a closure member 31, the closure member being formed of two metallic layers 25, 26 having interposed between them a layer 27 of magnetic rubber. The magnetic rubber may be moulded to contain large numbers of extremely finely divided magnetic barium ferrite particles. Furthermore either the stem 21 or the collar 29 disposed therearound may be made of magnetic material having a polarity opposite to that of the rubber such that the valve member is at all times kept centralized-so minimizing wear on its edgeswhilst moving between the seat and stop members, the latter of which carries a magnetic ring 30 having the same polarity as that of the rubber. Figs. 3 to 9, not shown, depict various modifications each having a multi-layer valve member of which at least one of the layers is made from magnetic rubber, and in each of which the member is reciprocable between a seat and a magnet-carrying stop.
Patent GB-1105584-A (GB)
Title: Improvements relating to the separation of oil from oil-in-water emulsions
Inventor: FAIRGRIEVE ADAM WILSON
IPC: B01D17/02
Filed: 1965-09-01
Abstract: Oil is separated from oil-in-water emulsions by treatment with an electrolyte, e.g. aluminium sulphate, in conjunction with air introduced by means of an ejector.  The emulsion or the mixture thereof with electrolyte may be pumped through the aerator, and may be recirculated, and finally allowed to settle.
Patent GB-1195994-A (GB)
Title: Improvements in Fluidics.
Inventor: TILEY DAVID TERENCE
IPC: G01L15/00
Filed: 1967-08-15
Abstract: 1,195,994. Jet propulsion engines. ROLLSROYCE Ltd. Nov. 12, 1968 [Aug. 15, 1967], No. 37353/67. Heading F1J. [Also in Division G2-3] A fluidic servomotor control system maintains a constant ratio between the compressor delivery pressure P 3  and the jet pipe pressure P J  in a gas turbine jet engine, by comparing these pressures in a comparitor circuit, Fig. 8 (Fig. 10 not shown), and feeding the differential output pressures P A , P B  into a motor circuit, Fig. 11 or 12 (not shown) to alter the position of flaps 29, Fig. 7 (not shown) which vary the cross sectional area of the final nozzle of the jet pipe. A pair of series connected orifices 32, 33 form a potentiometer feeding input nozzle 34 of an impact modulator 35 the other input 42 of which is paralleled with the input 43 of another impact modulator 38. Inputs 42, 43 are fed through an orifice 40 and this dimension of the three orifices are selected so that for a predetermined ratio P J  : P 3  pressures P A  and P B  are equal. In the modification of Fig. 10 (not shown) the feeder to the impact modulators are changed but the relationship between the pressures remain unaltered. Pressures P A  and P B  are fed to the motor circuits to unbalance either a spool valve (100 Fig. 11), or a vortex amplifier bridge circuit (126-129 Fig. 12), which controls an actuator connected to the control flaps (29),
Patent GB-927348-A (GB)
IPC: A01N43/70
Filed: 1959-11-04
Abstract: 927,348. Herbicidal compositions containing triazines. J. R. GEIGY A.G. Nov. 4, 1959 [Nov. 5, 1958 (2)], No. 37398/59. Class 81 (1). [Also in Group IV (b)] Compositions for the inhibition of plant growth comprise as the active ingredient triazine derivatives of the formula wherein X represents chlorine, bromine or a C 1-6  alkyl or alkenyl radical bound by way of O or S, R 1  represents a C 1-6  alkyl or alkenyl radical or a C 2-8  alkoxyalkyl radical, R 2  and R 3  represent hydrogen or C 1-6  alkyl or alkenyl radicals, R 4  represents a C 2-8  alkoxyalkyl radical, provided that when X represents chlorine or bromine, R 1  is restricted to a C 1-6  alkyl or alkenyl radical, together with a solid or liquid carrier and optional materials having a phytotoxic, bactericidal, fungicidal or plant growth regulant action e.g. 3-amino- 1,2,4-triazole and salts of α,α-dichloropropionic acid. The active ingredients alone or in admixture with a carrier material may be applied as a plant growth inhibitor to plants or arable land. Specified diluents are mineral oil fractions, coal tar oils, vegetable and animal oils, ethanol, isopropanol, acetone, butanone, cyclohexanone, diacetone alcohol, benzene, toluene, xylene, tetrachlorethane ethylene chloride polyethylene glycol, talcum, kieselguhr diatomaceous earth, kaolin, bentonite, calcium carbonate, tricalcium phosphate, sand, sawdust or ground cork. The composition may also contain surface active agents e.g. quaternary ammonium compounds, soaps, soft soaps, alkali metal salts of aliphatic long chained sulphuric acid monoesters, aliphatic aromatic sulphonic acids, long chain alkoxy acetic acids, polyethylene glycol ethers of fatty alcohols or alkyl phenols polycondensation products of ethylene oxide and sulphuric acid esters of alkyl polyglycol ether. Specified forms are dusts, pastes, emulsions, solutions, suspension or granules. Other additives include sulphite waste liquor. Specification 927,347 is referred to.