baber/WOPTO huggingface dataset:
Patent GB-579914-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B29/02
Filed: 1944-07-20
Abstract: 579,914. Steam boilers. INTERNATIONAL COMBUSTION, Ltd. July 20,1944, No. 13921 Convention date, Aug. 21, 1943. [Class 123 (ii)] [Also in Group XXVI] In a natural circulation boiler comprising a furnace 1 fitted with coal or other fuel burners 2 and lined with steam generating tubes 3 connected at their upper ends to a steam and water drum 9 and at their lower ends to headers 4, 5, the latter headers being themselves connected by tubes 7, 8 to a drum or header 6 between which and the drum 9 a number of downcomers 21, 23 extend, the natural circulation is augmented by rotary pumps 22 located one in each downcomer and driven by the discharge or outlet from the boiler feed water pump 48. Two constructions of pump 22 are described. In one form, Fig. 3, the pump consists of a turbine 24 which is located within a volute passage formed in a housing 26 and having an inlet 27 and outlet 28 and is mounted on one end of a shaft 25 which extends through an elbow 31 and is fitted at its other end with a propeller 35, the horizontal and vertical legs of the elbow being connected to the parts 21, 23 of a downcomer and the former leg being provided with a check valve 39 to prevent reverse flow of water in the event of failure of the pump. The shaft 25 rotates in bearings 38, 38a in a cage 36 clamped between the housing 26 and elbow 31, the bearings being lubricated by feed water supplied through holes 24a in the turbine 24. In the other construction, not shown, the turbine 24 is inverted and the discharge water therefrom flows downwardly through an outlet in the cage 36 into the downcomer, the outlet 28 being omitted. As shown in Fig. 1, the outlet 49 of the feed pump 48 discharges into a header 50 which is connected by pipes 51 to the inlets 27 of the turbines 24, the feed water, after passage through the turbines, flowing through the outlets 28 and pipes 51a to a second header 52, and from thence through a pipe 53, economizer 19 and pipe 54 to the drum 9. The pipe 53 is provided with a feed regulating valve, not shown, and to maintain circulation by means of the pumps 22, when the valve is wholly or partly closed, a valved pipe connection 63 extends from the header 52 to the inlet of the feed pump. The boiler may be provided with a second economizer 20 in series with the drum 9 by pipes 56, 57, 58 and through which water is circulated by a feedwater driven pump 55 connected to the headers 50, 53 by pipes 59, 60. In a modification the feed pump is connected directly to the economizer 19, with the latter supplying the header 50 and the header 52 being connected to the drum 9, the header 52 being dispensed with when the feed water flowing through the turbines 24 of the pumps 22 exhausts direct into the downcomers 21, 23.
Patent GB-109849-A (GB)
Title: Improved Alternating Liquid Current Motors.
Inventor: CONSTANTINESCO GOGU
IPC: F16H43/02
Filed: 1916-09-30
Abstract: 109,849. Constantinesco, G., and Haddon, W. Sept. 30, 1916. Hydraulic transmission of power; liquid-pressure engines.-A motor operated by periodic impulses produced in a liquid-wave-transmission svstem, as described in Specifications 9029/13 and 12438/14, comprises cylinders A, B connected to the outlets of a two-phase generator, rings D, E, and a rotor R provided with cylinders and pistons P. Guides G prevent the rings D, E from moving in a direction perpendicular to that of the actuating impulses, and the rotor cylinders communicate with spaces a, b, which are connected to the transmission lines from the generator. Specification 106,309 also is referred to.
Patent GB-736730-A (GB)
Title: Improvements in or relating to horns
Inventor: MOULDING THOMAS GORDON
IPC: G10K9/22
Filed: 1953-05-19
Abstract: 736,730. Electric horns. ELECTRIC AUTOLITE CO. May 19, 1953, No. 14006/53. Class 13. An electromagnetically-actuated diaphragm horn has a snap-on cover. A groove 72 in the cover 58 engages detent plates 70 secured by bolts 26 to the base 14. The iim 62 of the cover 58 fits over a circular ridge 64 on the base 14 and a gasket 66 is held between the rim 62 and the base 14. The terminal 40A is piovided with a rubber grommet to seal the opening in the cover 58 through which it passes. The horn is cairied by laminated strips 74.
Patent GB-1431333-A (GB)
Title: Cryogenic refrigeration utilising the joule-thomson effect
IPC: F25B9/02
Filed: 1973-03-22
Abstract: 1431333 Refrigerating L'AIR LIQUIDESOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 22 March 1973 [23 May 1972] 14007/73 Heading F4H In a cryogenic refrigeration apparatus, the flow of refrigerant through a Joule-Thomson nozzle is maintained at a rate above a predetermined minimum and the flow rate also may be proportional to the temperature of low pressure fluid in the apparatus. As described, a radiation detector 18 mounted in a dewar 5, 6 is cooled by a refrigerant, e.g. nitrogen, passed to a Joule- Thomson orifice 11 through a coiled heat exchange tube 50 over which the low pressure gas from an expansion chamber 17 in thermal contact with the detector passes through a passage 8. The proportional flow rate of refrigerant through the orifice is controlled either by the position of a needle valve 10 controlled by a bellows 20 defining a chamber 19 filled with a sealed charge of an expandable gas and sensitive to the temperature within the passage 8 or by a thermocouple in the chamber 17 which generates an electrical signal which is transmitted to an electro-pneumatic valve located externally of the apparatus to control the refrigerant flow to the orifice. The minimum flow rate is achieved either by a needle adapted to allow at least 2% of the total cross-section of the orifice to be open at all times or a leakage passage is formed in the seating of the valve or in the needle valve itself.
Patent GB-1467611-A (GB)
Title: Polyester resin compositions
IPC: C08G18/00
Filed: 1975-04-04
Abstract: 1467611 Polyester/blocked polyisocyanate mixtures NIPPON ESTER CO Ltd 4 April 1975 [4 April 1974] 14014/75 Heading C3R Polyester/blocked polyisocyanate mixtures which when pulverized may be used as powder paints are prepared by melt-mixing a polyisocyanate blocked with a C 1-5  alkyl p-hydroxybenzoate and an oligomeric polyester which is obtained by depolymerizing a polyester having a high degree of polymerization and an intrinsic viscosity of at least 0À4, measured in a 1 : 1 by weight mixed solvent of phenol and tetrachloroethane at 20 C., with an alcohol and/or an ester having at least one alcoholic OH group in the molecule, which alcohol and/or ester is non-volatile at a temperature of 200-280 C., the oligomeric polyester being one which melts at a temperature of between 45 and 120 C. and has terminal hydroxyl groups and an average degree of polymerization of from 5 to 50. The polyester to be depolymerized is most preferably derived from terephthalic acid and ethylene glycol, optionally in the presence of p-hydroxybenzoic acid, aliphatic dicarboxylic acids and other polyols. Depolymerization may be carried out using polyhydric alcohols containing three or more hydroxy groups or esters derived from such alcohols and saturated aliphatic monocarboxylic acids, or esters such as bis - # - hydroxyethoxyterephthalate or #- hydroxy - ethyl - p - (hydroxyethoxy)benzoate. The polyisocyanate to be blocked is preferably one in which the isocyanate groups are attached to non-aromatic carbon atoms. Powder paints may be prepared by melt-mixing the polyester, blocked polyisocyanate and optionally pigments and levelling agents and grinding the mixture when cool.
Patent GB-894644-A (GB)
Title: Improvements in or relating to aircraft
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1957-05-02
Abstract: 894,644. Direct-lift aircraft. HOVERCRAFT DEVELOPMENT Ltd. May 2, 1958 [May 2, 1957], No. 14097/57. Class 4. An aircraft 1 which may, but preferably does not, have a conventional undercarriage, is supported clear of a runway or other landing surface preparatory to or during take-off or during landing by a pneumatic cushion formed by peripherally-extending continuous jet nozzles, 3, 5, 6 which are directed inwardly of the areas they enclose. The subsequent build-up of pressure air and gas contained by the jet streams issuing from nozzles 3, 4 and 5, and the underside of the aircraft and the runway, tends to deflect such streams outwardly as indicated by dotted lines 8 in Fig. 2. The supply to the nozzles may be obtained from auxiliary sources such as jet or rocket motors or from the main jet-propulsion engines 7 which are used to propel the aircraft forwardly on its supporting cushion. The application to an aircraft of Deltawing shape is described and the nozzles in a wing may be closable along the leading edge and mounted in deflectable flaps at the trailing edge to assist in forward propulsion of the aircraft when it is supported by aerodynamic lift. The nozzles, instead of being continuous, may be spaced aligned orifices so that jets therefrom entrain air. To ensure adequate stability balancing jet nozzles may be provided on the underside of the aircraft. Specification 854,211 is referred to.
Patent GB-1174365-A (GB)
Title: Benzotriazole Derivatives
Inventor: SCHELLHAMMER CARL-WOLFGANG
IPC: C07D249/18
Filed: 1968-03-25
Abstract: 1,174,365. Benzotriazole derivatives. FARBENFABRIKEN BAYER A.G. 25 March, 1968 [1 April, 1967], No. 14177/68. Heading C2C. Benzotriazole derivatives of the general formula where x is 1, 2 or 3 and R 1  is hydrogen, alkyl, alkoxy, NO 2 , acetylamino, dialkylamino (whereof the alkyl groups together with the nitrogen atom may be components of a heterocyclic ring which may also contain O, S or N as further hetero atoms), halogen, CN, COOH, SO 3 H or SO 2 -alkyl, y is 1, 2 or 3, and R 2  is the same as defined for R 1  or may denote, when y is 1, a radical of formula are prepared by reacting a compound of formula with at least the stoichiometrically required amount of a benzaldehyde of formula where R 2  is as defined for R 1  or may denote an aldehyde group, in the presence of pyridine. The preferred temperature range is 140- 180 C. and the water formed in the reaction is preferably continuously removed.
Patent GB-662573-A (GB)
Title: Process for the manufacture of new azo-dyestuff derivatives and the application thereof in dyeing and printing
IPC: C09B43/18
Filed: 1949-05-27
Abstract: The Specification describes but does not claim the preparation of halides of halo-sulphoacetic acids as in Specification 662,572, and in addition mentions thionyl chloride as a suitable reagent, no organic base then being used.ALSO:Azo dyestuffs containing the atomic grouping <FORM:0662573/IV (c)/1> (where R1 is a cyclic residue attached as shown) and free from solubilizing groups, are reacted with at least 2 molecular proportions of a halide of an acid <FORM:0662573/IV (c)/2> , where X is chlorine or bromine.  Such halides are obtained as in Specification 662,572 (see Group IV (b)), and may be prepared in situ by mixing the acid with the dyestuff before conversion into the halide.  The dyestuffs are preferably derived from arylides of 2 : 3-oxynaphthoic acid or of 2-oxydibenzofuran-3-carboxylic acid coupled with diazo components suitable for the manufacture of ice colours.  Acylation occurs at both the hydroxy group and the amide N-atom, the carboxylic group of the acylating agent taking part in the reaction.  The products are hydrolysed back to the parent dyestuffs with weak dilute alkali, e.g. with aqueous or gaseous ammonia.  Thus, wool or other animal fibre may be dyed with the acylated products from an acid or neutral bath and hydrolysis effected on the fibre.  Alternatively, the acylated products may be made up into acid or neutral printing pastes, applied to cotton and developed with alkali.  In the examples: (1)-(17), dyestuffs from the following components are acylated with chloro-sulpho-acetyl chloride: 3-chloroaniline, 2 : 5-dichloroaniline, 2-methyl-4 - chloroaniline, 2 - methoxy - 4 - chloroaniline, 2 : 5 - diethoxy - 4 - benzoylaminoaniline and a -naphthylamine: 2 : 3-oxynaphthoic anilide and 21-methoxyanilide; (18) the dyestuff from 2-methyl-4-chloroaniline and 2-oxy-dibenzofuran - 3 - carboxylic - 21 : 51 - dimethoxyanilide is acylated with chloro-sulpho-acetyl chloride; (19) the dyestuff from 3-chloroaniline and 2 : 3-oxynaphthoic 21-methoxyanilide is acylated with bromo-sulpho-acetyl chloride; (20) wool is dyed with an acylated dyestuff and the dyeing developed with ammonia; (21)-(24) cotton is printed with an acid paste of the acylated dyestuffs and the usual thickeners and the colour developed with ammonia.  Other specified diazo components are: 2-trifluoromethyl - 4 - chloroaniline, 5 - trifluoromethyl - 2 - chloraniline, 2 - ethylsulphonyl - 5 - trifluoromethyl-aniline, 3 : 5-bis-trifluoromethylaniline, 2-nitraniline, 4-chloro-2-nitraniline, 4-methyl - 2 - nitraniline, 4 - methoxy - 2 - nitraniline, 6 - methoxy - 3 - nitraniline, 2 - methoxy - 5 - methyl - 4 - benzoylamino - aniline and 4 - amino - 3 : 21 - dimethyl - azobenzene.  The Aryl group in the above formula may be phenyl, o-tolyl, 2-methoxyphenyl, 4-chloro-2-methylphenyl, 2 : 5 - dimethoxy - 4 - chlorophenyl, 2 : 4-dimethoxy-5-chlorophenyl or 2-methyl-4-methoxyphenyl, or may be a naphthalene residue. Specifications 480,358 and 512,664 are also referred to.
Patent GB-1429860-A (GB)
Title: Apparatus for manufacturing a band part of plastic bags inter connected by tear-off perforations
IPC: B31B27/00
Filed: 1973-03-23
Abstract: 1429860 Making interconnected bags WAVIN BV 23 March 1973 14273/73 Heading B5D An apparatus for making a band of bags interconnected by lines of perforations comprises feed rollers 6 for a tubular plastics foil, perforating rollers 13, 14 for transversely perforating the foil, co-operating sealing drums 7 and 9 for transversely welding the foil, a drum 19 which has at least one circumferential ridge (20), Fig. 2 (not shown), for opening successive perforations and for reflecting or radiating light through the perforation towards at least one photo-electric cell 17, and a cutting knife 16 or a tearing mechanism for separating a band of bags from the continuous foil. One or more first counters 23, each associated with a respective photo-electric cell 17, can activate a printing unit 15 and the cutting knife 16. The apparatus includes a second counting arrangement 24 for counting predetermined lengths of foil which is also coupled to the cutting knife 16. By comparison of the numbers of the counts made by the first and second counters, the apparatus can determine automatically and reject a band of bags which includes malformed or absent perforations. In another embodiment counts corresponding to each bag registered by the counter 24 may be fed to the counter 23, if the counter 23 has not also counted the bag and previously reset the counter 24. Counts which are transmitted by the counter 24 to the counter 23 before counter 24 is reset, indicate that a perforation is absent or unsatisfactory and permit automatic rejection of the band. As alternatives to the arrangement shown the perforating rollers 13, 14 may be located downstream of a drum 10 and co-operating roller 11, and the printing unit 15 may be arranged upstream of the sealing drums. The bands may be folded or wound.
Patent GB-1203879-A (GB)
Title: Improvements in or relating to insulating spaces containing insulating material
IPC: H05B3/00
Filed: 1968-03-25
Abstract: 1,203,879. Thermally insulating vessels. LINDE A.G. 25 March, 1968 [31 March, 1967], No. 14276/68. Heading F4U. [Also in Divisions F1 and H3-H5] Current is supplied to reflecting metal layer 4 during the evacuation of the insulating space between walls 1 and 2 to heat an adjacent thermally insulating layer 3 within the space and drive off gases adsorbed therein. The thermally insulating layer 3 may be made of asbestos, plastics or glass fibre paper. Aluminium in the form of a foil or a layer deposited on the insulating layer may be used as the metal layer 4. The metal layer 4 may be a concentric spiral as shown or separate cylinders between cylindrical insulating layers. The metal layer may be divided over its length to form separate resistive sections. Heat insulating electrical insulation may line the facing walls 1 and 2. The insulating space may be of a dewar flash, between walls of a jacket for superconducting cables, or a pipe line.
Patent GB-437966-A (GB)
Title: Improvements in devices for the application of dyes and the like to the hair
IPC: A45D19/02
Filed: 1934-05-11
Abstract: 437,966. Reservoir brushes. BOUDOU, J. L. R., Peter Pan House, Lancaster Gate, London. May 11, 1934, No. 14277. [Class 19] A device for applying dye or toilet preparation to the hair cornprises a brush 4 detachably mounted, as by elastic bands 6, to a collapsable tube 1, wherein the tube and brush handle are complementarily shaped so that the tube nozzle 3 is disposed exteriorly of the bristles. In the form shown, the tube is grooved to fit the handle, but alternatively the handle may be hollowed to receive the tube. The end 8 of the brush is pointed to act as a single-tooth comb.
Patent GB-418118-A (GB)
Title: Improvements in or relating to elastic yarns, threads, or filaments
IPC: B29C37/00
Filed: 1934-05-12
Abstract: Elastic yarns comprise a core of a rubber-like substance which, whilst in a semidry or semivulcanized condition, has been coated with short fibres or powdery material capable of being dyed or powdery material capable of being dyed or coloured, and the core afterwards dried.  No additional adhesive is used.  Suitable materials are wood powder, wood fibre, silk, artificial silk, cotton, or other vegetable fibres.  The powder or fibres may be dyed or coloured before or after the coating operation, which is effected by passing the sticky core through the material. Mixtures of powder and fibre may be used, and with previously dyed material, mixtures of different colours may be used.
Patent GB-707159-A (GB)
Title: Improvements in and relating to wind tunnels
Inventor: ELLIS DAVID LLEWELYN
IPC: G01M9/04
Filed: 1951-06-18
Abstract: 707,159. Wind tunnel. ENGLISH ELECTRIC CO., Ltd. June 13, 1952 [June 18, 1951], No. 14401/51. Class 4 A jet engine driven high speed wind tunnel has part of the hot exhaust of the tunnel used for regenerating air drying material used at the entrance to the tunnel. Referring to Fig. 1, the jet engine 1 draws air through the working section 7, and part of the hot exhaust is collected at 13 and guided by duct 17 to the tunnel entrance. Valves 16 and 16<SP>1</SP> direct the flow over drying sections 23 or 23<SP>1</SP>, the former as shown, the floor being guided by flaps 22 and 21, and the silica gel or like drying agent is dried by the hot gases. The tunnel air intake comes through drying action 23<SP>1</SP>. Periodically, valves 16 and 16<SP>1</SP> and flaps 21, 22 and 22<SP>1</SP>, are changed over, section 23 drying incoming air, while section 23<SP>1</SP> is regenerated. In a modification, air is drawn by a fan over a heat exchanger fed by the exhaust, which air is then used to regenerate the drying sections. The jet engine may be placed in a nacelle inside the tunnel as shown in Specification 635,609. Specification 638,052 also is referred to.
Patent GB-471962-A (GB)
Title: Improvements in machines for producing bias cut materials
IPC: D06H7/12
Filed: 1936-03-11
Abstract: 471,962. Cutting fabrics on the bias. MARRIOTT, H. L. (Lever Bias Machine Corporation) March 11, 1936, No. 14407/37. Divided out of 471,903, [Group XVI]. [Class 31 (i)] A machine for producing bias cut material comprises a mandrel over which tubular material is drawn past a cutter by wind-up mechanism, the angle of which with respect to the mandrel can be altered to change the width of the material cut. The wind-up mechanism consisting of rolls 23, 24, 25, 28 around which the material 27 passes and a core bar 47 to support a cardboard tube 48 on which the material is wound, is mounted on a support 22 pivoted at one end to a bed plate 74 and adjusted at the other end by a screw 76 co-operating with a threaded lug 75. The bar 47 is slidable in slots 49 in end frame members, and can be raised by a treadle 52. A bar 59 which normally rests on the material as it is wound up to ensure even winding can be held in the inoperative position shown by latches 64. The mandrel consists of spiders 12 on which bars 13 are adjustably mounted, one bar being carried by pivot arms 16 and held outwardly by counterweights 17 ; a metallic hood 71 with apertures 72 is provided to facilitate the movement of the tubular material on to the mandrel and to dissipate static electricity. The material is fed on to the mandrel from a work holder as described in Specification 471,903 and is cut by a disc cutter 29 driven by a motor 30.
Patent GB-406630-A (GB)
Title: Improvements in and relating to the control of prime movers
IPC: G05D13/00
Filed: 1932-05-20
Abstract: 406,630. Speed governors. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. May 20, 1932, No. 14411. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 7, 1932]. [Class 57.] In a fluid governing system for a prime mover, a pump 7 driven by the prime mover and positioned below the suction level of the oil 8, supplies pressure oil for lubricating the bearings, and also supplies pressure oil for acting upon the pressure responsive means 5 and oil to the fluid relay 4. A valve 12 determines the speed at which the fluid governor shall operate.
Patent GB-839273-A (GB)
Title: Method and apparatus for improving the performance of induction devices
IPC: H02K24/00
Filed: 1958-05-06
Abstract: 839,273. Transformers; selsyn machines. BENDIX AVIATION CORPORATION. May 6,1958 [May 27, 1957], No. 14479/58. Drawings to Specification. Classes 35 and 38 (2). Selected harmonics are cancelled in the windings of a synchro or like device by proportioning the number of turns in individual coils of the winding. Formulae are given in relation to the fifth and seventh order harmonics in a nine slot winding having coils of three and four slot pitch. The third and ninth order harmonics are eliminated by arranging the stator windings in 3-phase star connection and all those of even order by making the two-pole salient rotor bi-symmetrical. An alternative method of finding the required proportion of turns is given, Fig. 3 (not shown), consisting of plotting experimental results on a graph. Specification 671,632 is referred to.
Patent GB-162562-A (GB)
Title: An apparatus for conveying lithographic stones from one part of the works to another, the same being also applicable for other uses
IPC: B41D5/00
Filed: 1920-05-28
Abstract: 162,562. McLellan, Q. B. May 28, 1920 Hand-trucks.-A truck for conveying litho graphic stones or for other purposes has a base frame Amounted on two fixed and two swivelling wheels B<1> and carrying two pillars such as G supported by stays H<1>, J'. The pillars have brackets K, of the split-sleeve type, formed witl extensions O<1> which provide bearings for spindle provided with a handle R and carrying worms Q<1>. These worms co-operate with inter nally threaded worm-wheels T' on bosses S or the pillars G' to raise or lower inner members U<1> in the pillars. Hinged to the tops of the mem bers U<1> is a platform W which carries transverse rollers X and has an end stop d<1>. Locking-means b on the members U' co-operate with a quadrant a. on the platform W to maintain it in any desired position.