baber/WOPTO huggingface dataset:
Patent GB-938767-A (GB)
Title: The preparation of galanthamine from the amaryllidaceae and its separation from associated alkaloids
Inventor: SHAPIRO NINA FEODOROVNA PROSKO
Filed: 1961-12-13
Abstract: Galanthamine obtained from a member of the Amaryllidaceae is purified by dissolving the impure alkaloid in acetone, treating the solution with aluminium oxide, removing the latter and evaporating the solution to obtain a concentrated solution of purified galanthamine. This may then be treated with an alcoholic solution of hydrogen bromide to obtain galanthamine hydrobromide.  The impure galanthamine may be obtained by treating the plant material with ammonia, extracting the alkaloids with a solvent, extracting the resulting solution with sulphuric acid, making the acid extract alkaline with ammonia, and removing the alkaloids other than galanthamine thus precipitated.
Patent GB-1194039-A (GB)
Title: Looms
IPC: F16D3/50
Filed: 1967-10-02
Abstract: 1,194,039. Universal joints. SULZER BROS. Ltd. 2 Oct., 1967 [30 Sept., 1966], No. 44842/67. Heading F2U. [Also in Division D1] A shock-absorbing coupling between a main drive shaft 21 and a shaft 16 driving a loom motion comprises prestressed resilient inserts 34, 35 between polygonal ends of these shafts and a coupling sleeve. The coupling sleeve is split axially into two parts which are connected together by bolts which are tightened to give a desired prestressing to the resilient inserts. The inserts are located axially of the sleeve between end plates 31 and shoulders 29, and are located axially of the shafts by end plates 19, 24 and shoulders 18, 23. The inserts may be of natural or synthetic rubber or of a polytetrafluoroethylene, and may contain reinforcing means. In a modification one insert is replaced by a non- resilient metal blank to give a stiffer coupling.
Patent GB-1521454-A (GB)
Title: Laser generator device emitting at a wavelength close to 1.3 microns
IPC: H01S3/10
Filed: 1976-11-01
Abstract: 1521454 Lasers COMPAGNIE GENERALE D'ELECTRICITE SA 1 Nov 1976 [17 Nov 1975] 45355/76 Heading H1C A laser generator having an active medium 4 which includes neodymium as the lasing component is contained by dichroic resonator mirrors 1, 2 and a pulse cutter to produce a single short radiation pulse of wavelength close to 1À3 micron, the pulse being amplified and increased in duration to approximately 0À1 nanosecond by an amplifier using a gaseous iodine compound as its active medium 13. The laser generator includes an electro-optical modulator 5, a plate polarizer 6 inclined at the Brewster angle, a quartz acoustic modulator 8 driven by a transducer 9, and an interference filter or Fabry-Perot etalon 17. With this arrangement mode-locked pulses are produced, all but the first pulse being prevented from reaching the amplifier by a pulse cutter comprising a Pocket cell electro-optical modulator positioned between crossed polarisms 11, 12. The duration of the amplified pulse is changeable by adjusting the iodine gas pressure at device 14. The mode locking property may be discarded by omitting the quartz acoustic modulator 8, Fig. 4 (not shown), pulses being triggered by a Pockets cell. The generator may utilize Nddoped glass, crystal or liquid and the gaseous amplifying medium may consist of C 3 F 7 I and argon.
Patent GB-1435021-A (GB)
Title: Preparation of copolyesters
IPC: C08G63/60
Filed: 1973-09-27
Abstract: 1435021 Copolyesters EASTMAN KODAK CO 27 Sept 1973 [28 Sept 1972 1 Dec 1972] 45375/73 Heading C3R A process for preparing a copolyester comprises: (a) preparing a fragmented polyester by contacting (i) a starting polyester of a dicarboxylic acid and a diol having an inherent viscosity of at least 0À2 with(ii) from 5 to 95 mole per cent, based on the total moles of (ii) and the dicarboxylic acid of the starting polyester, of an acyloxy aromatic carboxylic acid having at least 3 carbon atoms between the carboxyl group and the acyloxy group, and (b) preparing the final copolyester having an inherent viscosity of at least 0À4 by increasing the inherent visocity of the fragmented polyester. The copolyester has less than 3 mole per cent of oxygen linkages between aliphatic and aromatic carbon atoms (i.e. ether linkages). The starting polyesters used in the examples are polyethylene terephthalate, copoly(80/20 ethylene terephthalate)isophthalate, the polyester formed from ethylene glycol, 4,4<SP>1</SP>-sulphonyldibenzoic acid and 1,12-dodecanedicarboxylic acid, poly(2,6-ethylenenaphthalate), polyethylene terephthalate modified with polytetramethylene glycol, polytetramethylene terephthalate, the polyester formed from bisphenol A and isophthalic acid, copoly(50/50 ethylene terephthalate/2,6-naphthalate) and copoly(95/5 ethylene terephthalate/2,5-dibromoterephthalate) and are reacted with m- or p-acetoxybenzoic acid or a mixture thereof, p-propionyloxybenzoic acid or a mixture of m-acetoxybenzoic acid and p-benzoxybenzoic acid. The copolyesters may be mixed with glass or asbestos fibres. The copolyester formed from polyethylene terephthalate and p-acetoxybenzoic acid may be added to poly(tetramethylene terephthalate).
Patent GB-1068264-A (GB)
Title: Process for the selective hydrogenation of phenylphenols and biphenyl lower alkyl ethers
IPC: C07C39/17
Filed: 1965-10-27
Abstract: Gasolines, diesel fuels, lubricants and hydraulic fluids contain as antioxidant a cyclohexylphenol, possibly substituted in the cyclohexyl ring.ALSO:Phenylphenols and their ethers with C1- 4 alkanols are reacted in an organic liquid solvent in presence of a Pd catalyst with sufficient hydrogen to hydrogenate one of the aromatic rings; the solvent is either a saturated aliphatic monocarboxylic acid, when the product is mainly the cyclohexylphenol (or ether), or a paraffinic hydrocarbon, when the product is mainly the phenylcyclohexanol (or ether). The phenyl ring not containing the OH or ether group may be substituted.
Patent GB-1453929-A (GB)
Title: Frame construction
IPC: E06B3/96
Filed: 1972-10-04
Abstract: 1453929 Frame joints BRITISH ALUMINIUM CO Ltd 24 Oct 1973 [4 Oct 1972] 45754/72 Heading F2M A kit of parts for making a rectangular frame particularly for use in double glazing comprises square-ended elongate frame members 12 and 13, corner connecting pieces 14 and retaining members 15. Frame member 12 has channels 18, 20 and 23, channel 20 is undercut and engages the tongue 24 of the corner connecting piece 14. Frame member 13 has channels 21, 22 and 23, channel 22 has a circular section, opens into channel 21 and takes screw 16 fixing it to the corner piece 14. Channels 18 and 21 can receive a glazing sheet and channels 23 can receive sealing strips. The retaining member 15 may be fixed to the tongue 24 by means of screw 17 thereby fixing frame 12 to corner piece 14. The head 28 of the corner connecting piece 14 is of the same outward shape as the frame member 13 so that it forms a smooth extension. The frame members and comer pieces are preferably of aluminium or aluminium alloy extrusions or the corner pieces may be metal or plastics material mouldings or castings; the retaining members are preferably of plastics material and may be integral with the corner pieces.
Patent GB-1080489-A (GB)
Title: Improvements in and relating to moulded foam articles and their method of manufacture
IPC: B29C44/56
Filed: 1964-11-10
Abstract: 1,080,489. Moulding cellular material; laminates. J. L. D. OAKLEY (Scholl Mfg. Co. Inc.). Nov. 10, 1964, No. 45807/64. Headings B5A and B5N. A skeleton or preformed layer of a foamed plastics impregnated or treated to have deposits of a thermoplastic resin is deformed by moulding or laminating, by application of heat and pressure. The thermoplastic deposits are of a composition, e.g. a P.V.C. or P.V. acetate plastisol, having a softening point below the softening point of the foamed preformed layer, e.g. polyurethane. The moulded article could be an arch support, an insole, or a sheet of bunion pads or toe caps. In a two-layered polyurethane laminate the thermoplastic deposits are contained at least at the abutting surfaces and the layers may be of different colours and the outer surfaces of the laminate may be covered with stretch nylon or cotton fabric. However, only one of the polyurethane layers need have the thermoplastic deposits. A sandwich laminate comprising outer polyurethane layers having thermoplastic deposits and a central layer of foamed material may be formed, the outer surfaces of the laminate may be covered with stretched cotton fabric. The heating may be by dielectric or induction heating means and in several examples an aluminium mould is used.
Patent GB-1373543-A (GB)
Title: Coupling arrangement for optical fibres
IPC: G02B6/255
Filed: 1971-10-01
Abstract: 1373543 Modifying optical fibres LICENTIA PATENT-VERWALTUNGS-GmbH 1 Oct 1971 [2 Oct 1970] 45878/71 Heading C1M [Also in Division G2] An optical fibre 1 comprising a core 3 and a sheath 2 is subjected in the region of its coupling end 9 to a high temperature treatment so that a partial material diffusion takes place between the material of the core, and the material of the sheath. This gives a fibre wherein the core is of substantially uniform cross-section throughout its length except in the region 4 of the coupling end of the fibre, where the cross-sectional area of the core is larger than in the major part of the fibre, the cross-sectional planes being parallel. The fibre end may also be compressed or stretched longitudinally during the heat treatment. Fig. 1, also shows a similarly modified optical fibre 5 coupled to the fibre 1.
Patent GB-1468383-A (GB)
Title: Pneumatically driven boning and trimming knife
IPC: B26B25/00
Filed: 1974-10-25
Abstract: 1468383 Rotary positive-displacement fluid-machines BETTCHER INDUSTRIES Inc 25 Oct 1974 [28 Jan 1974] 46294/74 Heading F1F [Also in Divisions B4 and F2] A hand manipulated knife e.g. a boring knife comprises a ring-like blade B having a cutting edge 10 and gear teeth on the other edge co-operating with agear 20, 22, pneumatically-actuated-sliding-vane motor M having a rotor 40 with gear teeth 52 meshing with a gear 54, which is rotatably mounted in a rotatable member 56 and meshes with teeth 70 formed on a stationary tubular member 64, means 72, 74 connecting the rotatable member to the gear 20, 22, and valve means W for controlling the flow of air to the motor. Several gears 54 may be rotatably mounted in the member 56 which is coupled to a driving member 72 having a squared end 74 connected to the first gear 20, 22. The valve means W includes a valve stem 108 having enlarged portions 114, 124 separated by a groove 128 which is arranged to co-operate with a key hole type slot formed in a control ring 122; the control ring is normally urged by a spring such that the small end of the key hole slot engages with the groove. In order to operate the knife, the ring must be rotated with one hand to bring the enlarged portion of the slot into alignment with the stem thereby allowing the latter to be moved to the open position by a control lever 126. in a modification, Fig. 5 (not shown), the knife is larger and the design of gear-box is different.
Patent GB-1049709-A (GB)
Title: A process for isolating metals from solutions containing them, and novel pyridine n-oxides used for the purpose
IPC: C07D213/89
Filed: 1964-11-16
Abstract: Metal salts are recovered from aqueous solutions thereof by forming complexes with N-oxides of alkyl substituted pyridines in which the total carbon content of the alkyl groups present is at least 4.  The process may be adapted to the selective recovery of a particular metal salt from a mixture of metal salts. Aqueous solutions formed directly from a natural ore containing a particular metal may be treated to obtain a particular salt of said metal, usually the nitrate.  The process is particularly adapted to the recovery of salts of uranium, thorium, zirconium, mercury and bismuth.  The precipitated complexes may be purified by recrystallization from water.ALSO:The invention comprises N-oxides of pyridine substituted by at least 4 alkyl radicals, the number of carbon atoms contained in the said alkyl radicals taken together being 5 or more.  The N-oxides are obtained from the corresponding alkyl pyridines by oxidation with H2O2, and are used for complexing metal salts such as uranyl or thorium nitrates.
Patent GB-1060297-A (GB)
Title: Improvements relating to electric incandescent lamps
IPC: H01K1/66
Filed: 1963-11-26
Abstract: A plastics foam composition for filling the end caps of electric incandescent lamps consists of an incompletely condensed phenolic resin and dolomite with one or more fillers or blowing agents such as calcium carbonate, wood flour or gypsum.  In examples, mixtures of phenol formaldehyde, hexamethylene tetramine, marble flour and wood flour with or without talc are pressed into rings inserted in the cap and this is heated in situ.
Patent GB-1245118-A (GB)
Title: Improvements in and relating to transducers
IPC: G01P15/09
Filed: 1968-10-02
Abstract: 1, 245, 118. Measuring acceleration electrically. VIBRO-METER A.G. Oct. 2, 1968 [Oct. 10, 1967], No. 46688/ 68. Heading G1N. A Piezo-electric or Piezo resistive accelerometer has at least one outwardly open recess formed in that surface of its housing which is to be secured in contact with an object of which the acceleration or vibration is to be measured to reduce the transfer of heat from the object to the transducer. The recess may be a central circular aperture which may communicate through bores with the outer periphery of the housing, or a system of two or three intersecting sets of parallel grooves may extend across the contact surface so that cooling air can flow therethrough when the transducer is mounted in an air-stream. The grooves may deepen towards the periphery of the contact surface.
Patent GB-1205805-A (GB)
Title: Improvements in, or relating to shock-absorbing mounting assemblies
IPC: F16F15/04
Filed: 1967-10-13
Abstract: 1,205,805. Shock-absorbing mounting. OPTISCHE WERKE C.A. STEINHEIL SOHNE G.m.b.H. 13 Oct., 1967 [14 Oct., 1966; 20 March, 1967 (2)], No. 46729/67. Heading F2S. A shock-absorbing mounting particularly for an optical instrument such as a rangefinder or telescope on a vehicle, comprises resiliently yielding damping means 29 carried by the mounting and connected to the object 25, and additionally restoring means 28 carried by the mounting and connected to the object for restoring the mounting and the object to their initial position after a shock induced movement, each restoring means comprising two mating elements having rigid surfaces which contact each other in said initial position, and energy storage means 61, 62 which cause the mating elements to approach and contact each other. The resiliently yielding elements 29 are steel framed rubber springs spaced around the circumference of the mounting and there are preferably three restoring means equidistantly spaced. The first mating element is a conically headed pin 50 which engages with a correspondingly shaped aperture 45 in the instrument flange 42. In a modification the head is prismshaped and connected to the shank of the pin via a hemispherical bearing surface &c., Figs. 10, 11 (not shown), so that it is self-aligning. Additional damping means 68 having a high damping capability are preferably provided, of material such as brass, copper, aluminium, plastics &c. in the form of wire mesh &c.
Patent GB-1274003-A (GB)
Title: Improvements in or relating to mixing vessels
Inventor: SCHINDLER HERMANN
IPC: B01F7/16
Filed: 1969-09-23
Abstract: 1,274,003. Mixing vessel. CHEMIEANLAGEN ERFURT-RUDISLEBEN VEB. 23 Sept., 1969, No. 46790/69. Heading B1C. A mixing vessel has a baffle 1 mounted on its inner walls by means of hinges 2, at least one of which is resilient, and is provided with a stop 4. In use, when the contents of the vessel move in the direction indicated by the arrow, the baffle pivots inwards, the extent to which it pivots being determined by the position of the stop. A further stop (not shown) may be provided to ensure that the baffle is at a distance from the inner walls in its rest position so that it can be loaded. The stops may be provided on the walls of the vessel and/or the baffle, and may be adjustable. The hinges may be resilient flaps as shown, or a torsion spring-loaded hinge and pin-and-socket arrangement, (Figs. 3, 4 not shown).
Patent GB-1004494-A (GB)
Title: Improvements in or relating to crankcase ventilating systems for internal-combustion engines
IPC: F01M13/02
Filed: 1962-12-11
Abstract: 1,004,494. Crankcase ventilation systems. WALKER MANUFACTURING CO. Dec. 11, 1962 [Dec. 13, 1961], No. 46808/62. Heading FIB. Crankcase gases of a crankcase 10, Fig. 1, having an inlet 14 fitted with a check valve are fed through a pipe 50 to the engine air intake system 36. In Fig. 1 the pipe 50 is provided with an oil baffle 62 and a condensate trap 56 and leads to a chamber 36 in the air filter 34 fitted to the carburetter 24. In Fig. 2 the crankcase gases are fed through a pipe 30<SP>1</SP> with branches 40<SP>1</SP>, 60<SP>1</SP> leading respectively to the air filter chamber 46<SP>1</SP> and the intake manifold 12<SP>1</SP> at a point below the throttle valve. The gases fed through the pipe 40<SP>1</SP> result in a slightly rich mixture which is connected by the gases fed through the branch 60<SP>1</SP>. An orifice 118<SP>1</SP>, Fig. 3, in the entry to pipe 60<SP>1</SP> may be cleaned by a manuallyoperated spring-loaded plunger 123<SP>1</SP> with a cleaning pin 133. Flame traps formed by metal gauge 140<SP>1</SP>, 34<SP>1</SP> are provided in the pipe 30<SP>1</SP>.
Patent GB-1130867-A (GB)
Title: The preparation of optically active -‡-methyl--‡-amino--ß-(hydroxyphenyl)propionic acids
IPC: B24C1/10
Filed: 1966-10-19
Abstract: 1,130,867. α - Methyl - α - amino - # - (hydroxyphenyl)-propionic acids. MERCK & CO. Inc. 19 Oct., 1966 [22 Oct., 1965], No. 46808/66. Heading C2C. α - Methyl - α - amino - # - (hydroxyphenyl). propionic acids, e.g. L-methyltyrosine, are prepared by converting an optically active azide of formula wherein R is H or C 1-5 alkyl and R<SP>1</SP> is C 1-5  alkyl, into the corresponding isocyanate which is then hydrolysed. The azide starting materials may be prepared as in Specification 1,130,869.
Patent GB-1122414-A (GB)
Title: Method for forming lacquer coatings on non-textile supports
IPC: C09D163/00
Filed: 1965-11-04
Abstract: Coating compositions comprise (a) a compound of formula <FORM:1122414/C3/1> in which Y is -CH = CH2 or <FORM:1122414/C3/2> (b) a water-soluble film-forming cross-linking agent for (a), (c) water, in amount at least 65 wt. per cent of the total solvent, and (d) 0-35 wt. per cent of the total solvent, of an organic solvent which is at least partially miscible with water and which is compatible with (a) and (b).  Components (b) specified are aminoplasts, polycarboxylic acids, polyaminoamides, polyaminoimidazolines, phenol - formaldehyde resins, polyvinyl alcohols, partially hydrolysed polyvinyl acetate, polymers and copolymers having carboxyl groups and water soluble alkyd resins. The compositions may also contain pigments, fillers and flow control agents.ALSO:Lacquer coatings are formed on non-textile supports by applying compositions comprising (a) a compound of formula:- <FORM:1122414/B1-B2/1> in which Y is -CH=CH2 or -CH2 CH2O <FORM:1122414/B1-B2/2> , (b) a water soluble film-forming cross linking agent for (a), (c) water, in amount at least 65 wt.% of the total solvent, and (d) 0-35wt.% of the total solvent, of an organic solvent which is at least partially miscible with water and which is compatible with (a) and (b).  The compositions may also contain pigments, fillers and flow promoting agents.  They may be applied by spraying, dipping, brushing or roller coating to metallic objects, e.g. of aluminium and cured cold or with heating.  They may also be applied to wood and masonry.  Components (b) specified are aminoplasts polycarboxylic acids, polyaminoamides, polyaminoimidazolines, phenol-formaldehyde resins, polyvinyl alcohols, partially hydrolysed polyvinyl acetate, polymers and copolymers having carboxyl groups and water soluble alkyd resins.
Patent GB-1095059-A (GB)
Title: Tobacco smoke filters and material therefor
IPC: A24D3/14
Filed: 1966-10-20
Abstract: A tobacco smoke filter has incorporated therein a monomeric water-soluble hydrazide that reacts with aldehyde vapours to immobilize them.  The hydrazide is preferably applied as an aqueous solution by spraying on to a conventional filter tow material in the form of a spread out or "bloomed" tow, and the material is then dried and formed into filters.  Hydrazides exemplified are the dihydrazides of diglycolic, malonic and oxalic acids.
Patent GB-1185167-A (GB)
Title: A System whereby Automatic Gain Control and a Beat Frequency Oscillator may be used simultaneously in Radio Receivers and/or other Electronic Equipment
Inventor: MARCO ROBIN HENRY
IPC: H03G3/22
Filed: 1968-10-04
Abstract: 1,185,167. Radio receiving circuits. R. H. MARCO. 8 Nov., 1968 [4 Oct., 1968], No. 47292/68. Addition to 1,185,166. Heading H3Q. In a radio receiver in which, as in the parent Specification, a stage from which automatic gain control is derived is followed by an attenuator and a buffer amplifier feeding the signal detector, the output of a beat oscillator is also applied to the detector.
Patent GB-1003376-A (GB)
Title: Shaft coupling
IPC: F16D1/076
Filed: 1963-11-29
Abstract: 1,003,376. Shaft couplings. RHEINMETALL G.m.b.H. Nov. 29, 1963 [Dec. 1, 1962], No. 47327/63. Heading F2U. A shaft coupling, for universal joint shafts, comprises a pair of flanges 1, 5 secured together by bolts 2 which when assembled, deform a web 3 of the flange 1 into a countersink 4 of the flange 5.
Patent GB-1170012-A (GB)
Title: 0,5-Disubstituted-1,5-Pentanediols
Inventor: THOMPSON JAMES MCALLAN CORMACK
IPC: C07D233/40
Filed: 1967-10-18
Abstract: 1,170,012. 1,5-Disubstituted-1,5-pentanediols. IMPERIAL CHEMICAL INDUSTRIES Ltd. 3 Oct., 1968 [18 Oct., 1967], No. 47460/67. Heading C2C. [Also in Divisions C3 and D1] Novel compounds of Formula I in which R<SP>1</SP> is H or -CH 2 OH; R<SP>2</SP> and R<SP>3</SP> each represents H or alkyl and n is an integer are prepared by reacting a compound of Formula II with glutaraldehyde in basic aqueous solution (a) in a molar ratio of 2: 1 or more for compounds where n is 1 or (b) in a molar ratio of less than 2: 1 for polymeric condensates where n is greater than 1.
Patent GB-1248777-A (GB)
Title: Thermoluminescent phosphor
Inventor: NADA NAOHIRO
IPC: C09K11/08
Filed: 1968-10-08
Abstract: 1,248,777. Luminescent materials and processing. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 8 Oct., 1968 [12 Oct., 1967 (2); 9 Feb., 1968], No. 47650/68. Heading C4S. A thermoluminescent phosphor is prepared by sintering at 1500‹ to 2100‹ C. in an oxidizing atmosphere a mixture of BeO and/or BeSO 4  and an activator comprising at least one of Li, Na, K, Si, Ge, Sn, Zn, Cd, A1, Tl, V and Yb. Powder mixtures include BeSO 4  and Li and/or Na hydroxide, nitrate, sulphate, carbonate or chloride to which Ge and/or Si oxide may be added. The mixture is sintered twice to form a phosphor containing 0À005 to 5 mol. per cent activator. A shaped element is formed by pressing the mixture at 1000 kg./cm.<SP>2</SP> before sintering with NaOH flux. The element may be embedded in a silicate, borate or borosilicate glass by coating a phosphor block with an aqueous dispersion and heating at 1000‹ C. Alternatively, the sintered phosphor is mixed with glass powder comprising SiO 2 , Na 2 O, CaO, MgO and Al 2 O 3  and heating to 1000‹ C.