baber/WOPTO huggingface dataset:
Patent GB-1244401-A (GB)
Title: Microbiological hydroxylation of aromatic acids
IPC: C12P7/42
Filed: 1969-02-07
Abstract: 1,244,401. Hydroxybenzoic acids. SUN OIL CO. 7 Feb., 1969 [8 Feb., 1968; 8 Jan., 1969], No. 6668/69. Heading C2C. A benzoic acid or a salt or alkyl ester thereof having 1-6 carbon atoms in the alkyl group having attached to the ring carbon atom 0-3 methyl or halo groups, wherein the groups may be the same or different, and having at least two unsubstituted ring carbon atoms adjacent each other is hydroxylated to form the corresponding 2,3-dihydroxylated benzoic acid by a process which comprises (a) establishing a growth of microorganism cells in a nutrient medium, the microorganism being a Nocardia species normally incapable of hydroxylating the benzoic acid compound but being capable of induction of such activity (b) inducing the species by incorporating into the medium under aerobic conditions a compound which is an aromatic or halogenated aromatic compound having at least one aromatic ring with not more than one halo substituent attached thereto and which contains two unsubstituted adjacent ring carbon atoms capable of inducing the Nocardia cells to hydroxylate the benzoic acid, and (c) thereafter subjecting the benzoic acid compound to the action of the induced cells under aerobic fermentation conditions.
Patent GB-998441-A (GB)
Title: Improvements in or relating to contact breakers
IPC: F23Q3/00
Filed: 1963-02-19
Abstract: 998,441. Momentary-contact switches; magnetic switches. M. E. LIESSE. Feb. 19, 1963 [Feb. 20, 1962], No. 6714/63. Heading H2B. In an electric switch, for ignition systems, a control member 16 pivots a plate 11, of ferro-magnetic material, against the action of a spring 13, the plate 11 attracting a magnet 2 on a resilient blade 1 carrying a contact 10. When the resilience of the blade overcomes the attraction of the magnet, the blade is released and vibrates, the moving contact 10 engaging stationary contacts 7, 8 alternately. The area 18 of the blade 1 where the pivoting takes place, may be of a reduced cross-section or there may be a pivotal link. For low-frequency operation, the blade may be replaced by a spring-loaded disc, revolving on a shaft and capable of oscillating between two stops.
Patent GB-1348971-A (GB)
Title: Stackable container
IPC: B65D21/02
Filed: 1973-02-12
Abstract: 1348971 Stackable containers FORM GmbH GES FUR FORMGEBUNG 12 Feb 1973 [12 Feb 1972] 6727/73 Heading B8D A generally spherical plastics container 1 comprises a single pair of mutually parallel and circular flat side walls 9 and 10, a concave circular top wall 5 having rim 6 and a handle 7 lying in the plane of a moulding scam 4, and an inset circular bottom wall 15 having a peripheral chamfer 13 adapted to receive the rim 6 of an identical container stacked therebeneath. A spout 21 is provided on the top portion of the container, and the bottom wall is formed with four triangular feet 16 which terminate in the plane containing the lower edge 14 of the chamfer.
Patent GB-424306-A (GB)
Title: Improvements in and relating to electric insulators
IPC: H01B17/12
Filed: 1934-03-03
Abstract: 424,306. Insulators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Vrooman, E. C. ; 1, River Road, Schenectady, New York, U.S.A.) March 3, 1934, No. 6834. Convention date, March 3, 1933. [Class 36] To prevent overheating of the high potential end of a high frequency insulator, the crosssectional area of the insulator is gradually increased towards its high potential end by tapered flutes or ribs which extend longitudinally of the insulator. In the construction shown, an insulator comprises a porcelain tube 10 having metal end fittings 12 and formed with longitudinal ribs 14 which taper in thickness away from the upper fitting and merge into the body of the tube 10. The ribbed tube may be formed by extrusion and the tapering of the ribs effected by turning in a lathe.
Patent GB-871798-A (GB)
Title: Improvements relating to the production of voluminous or bulky yarn
Inventor: RICHMOND ALFRED
IPC: D02G1/16
Filed: 1957-03-01
Abstract: 871,798. Spinning and finishing yarns. BRITISH CELANESE Ltd. Feb. 28, 1958 [March 1, 1957], No. 6877/57. Class 120(3) A jet, wherein single or doubled yarn (or tow) of continuous filaments is bulked by the action of a turbulent fluid stream, comprises a chamber 20 which yarn enters through an inlet tube 13 the diameter of the bore 25 of which is reduced at the inlet end 27 and leaves through a Venturi outlet portion 14 and to which fluid e.g. compressed air or moist steam, is supplied through passage 18 to flow away from tube 13 towards the outlet. It is suggested that the larger diameter portion of the tube 13 acts as a resonance cavity in which cyclic irregularities of flow occur thus extending the zone of turbulence. Twisted or untwisted yarn may be supplied from a stationary or rotating package or double twist spindle to impart (further) twist before the yarn reaches the jet. The yarn product may be collected directly by deposition and/or with controlled overfeed into a sliver can to ensure maximum bulk effects, or it may be wound and/or further twisted. Thermoplastic filaments may be heatset by the fluid within the jet and/or subsequent to collection. If two or more yarns are treated within the jet, they may subsequently be separated or remain entangled to form a composite yarn. Specifications 793,044 and 871,797 are referred to.
Patent GB-706075-A (GB)
Title: Wick trimmer for oil stoves
IPC: F23D3/36
Filed: 1952-03-18
Abstract: 706,075. Wick burners. HARPER & CO., Ltd., J., and CROWLEY, C. March 13, 1953 [March 18, 1952], No. 6939/52. Class 75 (1) A wick trimmer 19 for an oil burner having a circular wick 12 is combined with a removable flame spreader 16, the trimmer being mounted on the upper surface of the spreader so that by removing and inverting the spreader, the trimmer can be applied to the wick with the spreader forming a handle. The trimmer comprises a cylindrical body having an annular flange 20 provided with a ring of trimming holes 22, and a rim 21. The trimmer is spotwelded to the spreader with the flange and rim uppermost. The flame spreader 16 is secured to the upper end of a perforated tube 17 connected by bayonet connections 18 to the central air tube 10 of the burner.
Patent GB-1170157-A (GB)
Title: Radio Chromatogram Reading Apparatus.
Inventor: WAGNER VITTORIANO
IPC: G01T1/29
Filed: 1967-02-14
Abstract: 1, 170, 157. Measuring radio-activity. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). Feb. 14, 1967 [Feb. 26, 1966], No. 6946/67. Heading G1A. Radio chromatogram reading apparatus comprises a specimen mount rigidly attached to a slit collimator and a radiation detector and means for moving the specimen relative to the mount while by a micro-meter mechanism connected to one end; the other end being connected to a spring biasing means 29, 31. The specimen is held in contact with slit 23 by a roller 21 mounted in U- shaped brackets 22. The manual advance mechanism may be replaced by an automatic advance. maintaining the specimen in contact with the collimator. The specimen mount 14 and collimator slit 23 are attached to a tubular body 1 which contains a Geiger-Muller tube or photo-multiplier 4. The specimen is advanced across the slit 23
Patent GB-1530021-A (GB)
Title: Aqueous coating agents
IPC: C09D7/80
Filed: 1976-02-23
Abstract: 1530021 Producing aqueous polymer dispersions BASF AG 23 Feb 1976 [24 Feb 1975] 06984/76 Headings C3B C3L and C3R Aqueous polymer dispersions of 20-75 wt. per cent strength are produced by (a) preparing an organic solvent solution of a polymeric binder containing carboxyl groups and having an acid number of 5-150, the organic solvent being either a water-immiscible solvent or a mixture of water-miscible and water-immiscible solvents, (b) neutralizing part or all of the carboxyl groups with ammonia or an amine, (c) dispersing the organic solution in water (which may contain the neutralizing agent) in the absence of a dispersing agent, and (d) removing the organic solvent(s) virtually completely by azeotropic distillation. A cross-linking agent for the binder may also be present. In examples, (1) a methyl methacrylate/n-butyl acrylate/ hydroxypropyl acrylate/styrene/acrylic acid copolymer dissolved in xylene is neutralized with dimethylethanolamine, the solution is dispersed in water and the dispersion distilled to remove a xylene/water azeotrope, and the resulting aqueous dispersion is mixed with TiO 2  and an etherified melamine/formaldehyde resin; (2) the aqueous dispersion is produced as in (1) except that the original xylene solution also contains an isophoronediisocyanate/caprolactam adduct; and (3) similar to (2) but instead of said adduct there is used an epoxy resin based on bisphenol A and the polymer does not contain hydroxypropyl acrylate units.
Patent GB-713696-A (GB)
Title: Improvements in or relating to substituted cyclohexyl methyl ketones
Filed: 1952-03-18
Abstract: The invention comprises cyclohexyl methyl ketones of the general formula <FORM:0713696/IV(b)/1> wherein Y is a methoxy or ethoxy radical.  In preparing the above compounds a 2-(p-alkoxybenzoyl) - cyclohexane - 1 - carboxylic acid, produced by a Friedel-Crafts reaction between hexahydrophthalic anhydride and anisole or phenetole, is hydrogenated over a copper chromite catalyst to obtain a 2-(p-alkoxybenzyl) - cyclohexane - 1 - carboxylic acid, which is converted to the acid chloride by treatment with a solution of thionyl chloride in benzene containing pyridine.  The solution is evaporated to dryness under vacuum and the acid chloride, in a cooled ether solution, is treated with an ether solution of an excess of diazomethane to form the diazoketone.  The solution is evaporated to dryness under vacuum and a cooled solution of the product in an inert solvent such as dioxane is treated with a mineral acid and allowed to stand at elevated temperature when the 2-(p-alkoxybenzyl)-1-hydroxyacetylcyclohexane is formed.  In examples 2-(p-anisoyl)-cyclohexane-1-carboxylic acid is prepared, by reacting hexahydrophthalic anhydride and anisole in nitrobenzene using aluminium chloride as catalyst and is hydrogenated and the 2-(p-methoxybenzyl)-cyclohexane-1-carboxylic acid produced is converted to the corresponding acid chloride which in turn is converted into the crude diazoketone.  The crude diazoketone is treated in dioxane solution with dilute sulphuric acid, the desired product is extracted from the reaction mixture with ether, the solution is neutralized and dried and 2 - (p - methoxybenzyl) - 1 - hydroxyacetylcyclohexane is crystallized after adding petroleum ether to the concentrated ether solution (1); and 2-(p-ethoxybenzyl)-1-hydroxyacetylcyclohexane is similarly obtained when phenetole is employed instead of anisole as starting material (2).
Patent GB-1046656-A (GB)
Title: Continuous production of hydroxylammonium salts
Inventor: JOCKERS KURT
IPC: C01B21/14
Filed: 1964-02-20
Abstract: <PICT:1046656/C1/1> In the preparation of hydroxylammonium salts, in a continuous process by catalytic reduction of No with H2 in contact with Pt catalysts in the presence of dilute inorganic acids, the reduction is carried out in at least two successive stages; fresh acid is supplied at the first stage and hydroxylammonium salt withdrawn from the last stage, the acid concentration decreases from stage to stage.  The catalyst may be periodically gassed with NO, a mixture of NO and N2 or a mixture of NO and CO2, in each case in the absence of hydrogen. Reaction temperature may be 40 DEG  to 50 DEG C. and the catalyst may have Pt content of 0.3 to 5%. Fig. 3 illustrates a four-stage process for this reaction. E.g. 4 to 5 N H2So4 together with Pt catalyst from the separator S are introduced into reactor I and passed through reactors II, III and IV to the separator S.  The normalities of H2SO4 in the zones range from 3.20 to 0.30.  No and H2 mixture is passed in parallel through reactors IV, III and II, the off-gas from these reactors is collected and passed through reactor I.  After leaving I, remaining off-gas is burnt. Fig. 1 (not shown) illustrates a system in which 8 reactors are arranged in two parallel lines of 4.  Fig. 2 (not shown) is a 5-stage system where Stages I and II are fed with off-gas from Stages III, IV and V.
Patent GB-983944-A (GB)
Title: Installation for the thermal treatment of metallic articles
IPC: F26B15/14
Filed: 1963-02-21
Abstract: <PICT:0983944/C6-C7/1> An installation for the continuous heat-treatment of metal articles consists of two furnaces disposed one within the other, the outer acting as a pre-heating furnace through which the articles to be treated are moved by a conveyer which then proceeds through the inner furnace where the articles are heated to the desired treatment temperature.  As shown in plan view in Fig. 1, aluminium tubes 10 are carried by conveyer 7 through outer furnace 1 and then through inner tunnel furnace 5. Specification 899,740 is referred to.
Patent GB-556265-A (GB)
Title: Improvements relating to apparatus for ascertaining aircraft altitudes
IPC: G01S1/72
Filed: 1941-06-04
Abstract: 556,265. Calculating-apparatus. ABAX COR PORATION. June 4, 1941, No. 7094. Conven tion date, May 3, 1940. [Class 106 (i)] A one-station height device for determining aircraft altitudes comprises several recording styluses which trace simultaneously, from the acoustic co-ordinates of an aircraft, a family of curves representing, as a function of time, one and the same rectangular co-ordinate of a horizontal projection of the aircraft for different assumed values attributed to the altitude, so that that curve which most closely approximates to a straight line corresponds to the assumed altitude closest to the real altitude. As shown, shafts 5, 16 receive rotations proportional to the acoustic bearing and angular elevation respectively. Shaft 5 rotates slotted crank 2 through differential 6 and gears 7, and through shaft 11, gears 12 and differential 13, co-operates with shaft 16 to drive grooved disc 3 through worm 15. Shaft 16 also drives grooved drum 19. Four stylus-bearing blocks .50 are slidably mounted on rod 51 the end of which engages in groove 4 through the slotted crank 2, and on rods 44, 46, 47, 48 carried by lazy tongs 45, with rod 44 engaging groove 20. The styluses draw on paper 21 carried by rollers driven through a four-speed gearbox by motor 37. Before an operation, wheel 9 is rotated through a suitable angle to position the styluses on the left hand side of the paper. During the operation, the speed is selected from the gear-box which inclines the curves nearest 45 degrees. The altitude is then determined from a table according to the speed and the stylus producing the straightest curve.
Patent GB-1530425-A (GB)
Title: Keyboard arrangements
IPC: H03M11/22
Filed: 1977-02-22
Abstract: 1530425 Keyboard SIEMENS AG 22 Feb 1977 [26 April 1976] 07347/77 Heading G4H A keyboard comprises a circuit board 1 having on one side first and second pluralities of parallel conductor paths 6, 7 and a further plurality N of pairs 3 of conductor paths, first and second paths constituting each pair each having a respective connection point for connection of the paths via connecting bridges 12, 13 to any selected ones of respectively the first and the second pluralities of conductor paths, to which end each path of 6, 7 has N connection points, one per pair; N key contact units 11 each connected to the paths of a respective pair; and in respect of each pair first and second connecting bridges 12, 13 respectively connecting the connection points of the paths of the pair to the respective connection point of a selected one of the first and a selected one of the second pluralities of paths, at least one of the bridges including a decoupling diode.
Patent GB-796862-A (GB)
Title: Improvements in or relating to the preparation of high molecular weight linear polymers of formaldehyde
IPC: C08G2/00
Filed: 1956-03-08
Abstract: Formaldehyde polymers having a selected number average molecular weight of at least 10,000, and of the general formula A(CH2O)nB, where n is greater than 300 and A is a hydroxyl, methoxy, or formate radical and B is hydrogen and in which A and B are ionic cleavage portions of a chain transfer agent selected from water, methanol, or formic acid are made by polymerizing, e.g. continuously, substantially pure, anhydrous, monomeric formaldehyde in the presence of a polymerization catalyst and an amount of one or more of the agents as given by the equation <FORM:0796862/IV (a)/1> formic acid, wherein Mn is the number average molecular weight of the polymer to be made, X is the molar concentration in the polymerization medium of the chain transfer agent, M is the molar concentration of formaldehyde in the polymerization medium, expressed in the same units as X and A is a correction factor which is calculated from the equation <FORM:0796862/IV (a)/2> where C=1.34 for water, 0.66 for methanol, and 28 for formic acid, W=weight fraction of solids in the polymer slurry, M=solubility of the formaldehyde in the reaction medium and F= the feed rate of the liquid medium into the reactor. The polymerization is effected preferably in the presence of a liquid organic hydrocarbon such as heptane, or cyclohexane.  The exemplified catalyst is dimethyl di(hydrogenated tallow)-ammonium acetate. The polymers may be spun into fibres or filaments, or formed into films, sheets, tubes or rods.  Specification 753,299 is referred to.
Patent GB-560170-A (GB)
Title: Potassic liquid fertilizer
IPC: C05B7/00
Filed: 1942-06-01
Abstract: 560,170. Fertilizers. BLASS, L. June 1, 1942, No. 7403. [Class 111] A concentrated stock fertilizer solution free from undissolved salts at temperatures above 14‹ C. comprises ingredients containing nitrogen, phosphorus and potassium in such proportions that the solution contains more than 2.6 per cent or, more than 2.6 per cent P205 and between 5.2 and 9.5 per cent K2O. An example of a fertilizer solution which may be diluted with 300 to 600 volumes of water for use, consists of parts of nitrate of potash 17.25, nitrate of ammonium 10.35, ammonium phosphate,15,00, caramel (solid) for colouring 5.00, water 100.00. Specifications 541,992 and 557,787 are referred to.
Patent GB-573197-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H01R39/32
Filed: 1944-04-21
Abstract: 573,197. Commutators for dynamoelectric machines, GENERAL ELECTRIC CO., Ltd., and ARCHER, F. C. April 21, 1944, No. 7404. [Class 35] The outer conductors engaged within the slotted lugs or risers of commutator segments project radially beyond the lugs and are soldered thereto at or near the outer peripheral surface of the lugs. In the form shown, the outer periphery of the lug or riser 3 is cut away to accommodate part of the solder, shown black, and the latter may also occupy holes formed in the outer conductor in the vicinity of the lug periphery.
Patent GB-512525-A (GB)
Title: Improvements in a process and device for ventilation of dryers of paper-making machines and dryers for cellulose hydrate films
IPC: D21F13/00
Filed: 1938-03-09
Abstract: 512,525. Drying paper, cellulose films &c. BLEIBLER, E. March 9, 1938, No. 7422. Convention date, March 11, 1937. [Class 34 (i)] In drying transparent paper, cellulose hydrate films &c. the whole ventilation is below the paper &c. thus allowing access to the top of the dryer. Air is circulated at high speed by fans e through slots d against the under surface of the web &c. and is drawn downwards by the fans. A fan h feeds fresh air preferably through a heat exchanger p and about the air-withdrawal pipe, to adjustable inlets k, l; the exhaust air is withdrawn through adjustable openings m, n by a fan i. Conduits are provided to allow some of the more saturated air to mix with air at the delivery end of the machine to condition the dried paper &c. before it is wound up. The outlets of the fans h, i are adjusted as to produce a pressure below atmospheric in the chamber A.
Patent GB-323423-A (GB)
Title: Improvement in machines for forming rolls of paper or the like
IPC: B31C1/00
Filed: 1929-03-07
Abstract: 323,423. Andersson, H. March 7, 1929. Winding and registering webs.- In a machine for making rolls of crepe paper or the like of the kind comprising two endless belts forming an angular rolling-chamber, the belts form an acute rolling chamber and run over individual rollers so arranged that the belts can run at different speeds and the rolling-chamber can be opened at the small end to discharge the rolls. The machine may include means for doubling the paper bafore it is rolled, and for flattening the ends of the rolls. The machine shown in Fig. 1 comprises an endless belt 3 running over guide-rollers 2 and a driving-roller 4 on the framework 1, and an endless belt 8 running over a driving-roller 9 on the framework and guiderollers 7 on a frame 6 which is pivoted on the shaft 5 of the roller 9. The belts form an acute rolling-chamber and are driven in opposite directions, the belt 8 preferably having a slightly higher speed than the belt 3, and the speeds being adjustable to vary the compactness of the rolls. The belts are made of felt or other friction material and may consist of a number of separate endless strips. The paper 11 passes between adjustables guides 16, the guides at the sides of the rolling chamber being vibrated laterally to even the ends of the rolls. The paper is tensioned by means of cam-operated pivoted plates 18, 19, arranged over the belts 3, 8. When part of a length of paper has passed over the plate 18 it is raised and the top edge thereof slightly retards the paper. The plate 19 is lowered to engage the paper when part of the length has passed. The framework 1 is adjustable laterally on guides 31 by means of screws 32 to adjust the machine with reference to the paper as it is delivered from the paper-making machine. After a roll has been formed the frame 6 is automatically rocked to discharge the roll on to a table or conveyer 10. For this purpose, the frame is at each side connected bv a link 26 and lever 25 to a wire 24 connected to a disc 22 which is rocked by means of a cam 23 and a spring. The movements of the frame are limited by stops 29 and resilient abutments 30, the stops 29 and the shaft 5 being adjustable to vary the inclination of the belt 8 and the distance between the belts. The wires 24 are provided with adjusting-members for varying the throw of the frame. For flattening the, end of the roll it is placed in a tapered sleeve 37, Fig. 4, and the end is engaged by ribs 38<a> on a rotating member 38, the sleeve and member being mounted on the framework. For doubling the paper before it is rolled, there is provided a pivoted plate 12, Fig. 1, controlled by a cam 14 and spring 15 and co-operating with a bar 13 to hold one end of the paper until it has been advanced and doubled by means of the belt 3.