baber/WOPTO huggingface dataset:
Patent GB-752880-A (GB)
Title: Internal-combustion-turbine jet propulsion engine fuel systems
Inventor: DAVIES DAVID OMRIE
IPC: F02K3/00
Filed: 1953-08-12
Abstract: 752,880. Gas turbine jet propulsion plant. ROLLS-ROYCE, Ltd. Aug. 12, 1954 [Aug. 12, 1953], No. 22283/53. Class 110(3) In a gas turbine jet propulsion plant having a main and a reheat combustion system, the combustion systems are fed with fuel by separate pumps driven by air turbines which are arranged in series and supplied with air from the compressor of the gas turbine plant. The gas turbine jet propulsion engine 10 has an axial flow compressor 12, main combustion equipment 13, turbine 14, jet pipe 15 and reheat combustion equipment 16. Fuel is supplied to the main injectors 13a from a tank 17 by a booster pump 18 and a main fuel pump 20 which discharges through a control device 22 and a shut off cock 23. The pump 20 is driven by a turbine 26 supplied with air from the compressor 12 through a pipe 24. The exhaust of the turbine 26 passes to a valve 41 by which it may be passed either to a pipe 44 which leads to the exhaust of the turbine 14 or to the pipe 39 which leads to a second turbine 37 which drives a reheat fuel pump 33. The pump 33 is supplied with fuel from a tank 30 by a booster pump 31 and discharges through a control valve 35 and shut off cock 36 to reheat fuel injectors 16a. The pipe 44 may discharge to atmosphere as shown at 45. The turbine 37 exhausts through pipe 47 and nozzles 49 which project into holes 50 in a casing forming a cooling jacket 51 around the jet pipe. The nozzles 49 induce a flow of cooling air through the jacket 51 as described and claimed in Specification 724,004. The pipe 47 may exhaust to atmosphere. Specification 743,859 also is referred to.
Patent GB-617632-A (GB)
Title: Improvements in or relating to new synthetic resinous compositions
IPC: C08G63/127
Filed: 1946-07-26
Abstract: Synthetic resins suitable for use as plasticizers and in coating compositions are produced by reacting a polybasic acid or an anhydride thereof with the esterifiable condensation product of formaldehyde and a saturated enolisable ketone.  The polybasic acid may in part be replaced by monobasic acids or esters, particularly those of drying, semi-drying, or non-drying oils, or the partial esters of monobasic acids with polyhydric alcohols. Part of the ketone-formaldehyde product may be replaced by an alcohol, particularly a polyhydric alcohol.  In examples: (1) acetone and formalin are heated together with a sodium hydroxide catalyst, phthalic anhydride is added, and the temperature raised to 170 DEG C., with water distilling off; (2) the water is removed from an acetone-formaldehyde reaction product, which is then heated with linseed oil monoglyceride and phthalic anhydride, and dissolved in xylene with the addition of cobalt naphthenate, to form a varnish; (3) a dehydrated acetone-formaldehyde product is heated with raw castor oil and phthalic anhydride at 210 DEG  C.  A solution of the product in xylene is blended with a urea-formaldehyde resin lacquer solution.  Suitable ketones are acetone, methyl ethyl ketone, diethyl ketone, cyclohexanone and methyl cyclohexanone.
Patent GB-1511892-A (GB)
Title: Preparation of hard shaped zeolite bodies
IPC: C01B39/02
Filed: 1975-05-22
Abstract: 1511892 Shaped zeolites W R GRACE & CO 22 May 1975 [6 June 1974] 22349/75 Heading C1A A method of forming essentially 100% crystalline aluminosilicate shapes comprises (a) forming a mixture of a crystalline aluminosilicate and an amorphous silica in a ratio, by weight, in the range 95-5 to 70-30; (b) adding to the mixture water, a source of alumina and a source of Na 2 O sufficient to provide at least 10% of the Na 2 O stoichiometrically needed for conversion of the silica to zeolite; (c) forming the admixture into shapes; (d) ageing the shapes at 30-100% relative humidity at 15-40‹ C. for 8-48 hours; (e) immersing the aged shapes in sodium hydroxide solution when the amount of Na 2 O added in step (b) is less than that stoichiometrically needed for conversion of the silica to zeolite; and (f) heating the aged shapes, if desired in NaOH solution, at 90-110‹ C. for 3-24 hours. The aluminosilicate used in step (a) may be zeolite A, zeolite X, or zeolite Y, and the silica may be precipitated silica, silica-gel, or pyrogenic silica.
Patent GB-783651-A (GB)
Title: Improvements in or relating to window wiping equipment
IPC: B60S1/08
Filed: 1955-08-05
Abstract: 783,651. Windscreen cleaners. BOSCH GES., R. Aug. 5, 1955 [Aug. 7, 1954; July 4, 1955], No. 22542/55. Class 138(1). [Also in Group XXIV] In window wiping equipment for driving an oscillatable wiper blade or blades including an electric driving motor and reduction gearing, so that a reduction of the torque required to drive the blade or blades occurs in the region of each reversing or terminal position of the blade or blades, means are provided which during operation of the equipment tend to prevent any substantial increase in motor speed which would otherwise result from the torque reduction. As shown in Figs. 2 and 3, the electric motor, in a housing 10, drives a pinion 27 meshing with a gear wheel 26. A gear wheel 25 integral with the wheel 26 meshes with a gear wheel 8 secured to a shaft 7 connected through a linkage with the windscreen wiper arm or arms. Raised brake cams 11 are provided on the wheel 8, each comprising a gradual inclined portion 14, an even portion 13 and a steeply inclined portion 12. The cams 11 can engage, in turn, a brake pad 16 carried by a spring 15 secured to the gear housing 9. The cams are arranged to engage the brake pad as the wiper blades move towards their terminal positions on the windscreen, and when the torque on the motor is reduced and thus prevent the latter from increasing its speed. In the embodiment shown in Fig. 8, the gears 26, 25 are axially slidable on a shaft 30 against the urge of a spring 31 and the gear pair 25, 8 have helical teeth. When the electric motor 29 is at rest the spring 31 urges the gear 26 against a brake pad 32 but when the motor is running and the torque increases, axial thrust between the gears 25, 8 cause the gears 25, 26 to rise away from the pad 32 against the spring 31. As the torque on the motor is reduced when the wiper blades move towards their terminal positions, the spring 31 overcomes the axial thrust and applies the brake. The gear pair 26, 27 may have helical teeth in which case the fluctuations in the motor load are more rapidly corrected. If desired the gear pair 25, 8 may have straight teeth and the pair 26, 27 helical teeth, in which case the brake 32 is disposed above the gear 26 and the gears 25, 26 are urged upwardly by a helical spring. Instead of the mechanical brakes described, braking may be effected electrically. In the case of a compound-wound D.C. electric motor, a resistance is connected by a cam actuated switch, in parallel with the armature, to reduce the armature current, as described with reference to Fig. 6 (not shown). In the case of a shunt-wound D.C. electric motor, a resistance is insertable in series with the armature by a cam-operated switch as described with reference to Fig. 7 (not shown).
Patent GB-651932-A (GB)
Title: Improvements in or relating to rubber springs for the eiastic suspension of vehicle bodies, machinery and like objects
IPC: F16F1/42
Filed: 1948-08-27
Abstract: 651,932. Resilient mountings. S.A.G.A. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI. Aug. 27, 1948, No. 22701. Convention date, Sept. 23, 1947. [Class 108 (iii)] In a resilient mounting having a rubber element 1 of convex outer, and concave inner cross-section, and a rigid plate 2 which transmits the load between the element 1 and the object to be supported (not shown), the shapes of the plate 2 and the element 1 being such that the deformability of the mounting increases with increasing load, the plate 2 transmits the load to the resilient element 1 solely in a part thereof which is predominantly compression-stressed. The elements 1 may be arranged in series-parallel as shown, in parallel, or in a single super-posed series (Fig. 6, not shown). In the latter case the rigid members 3 intermediate adjacent resilient elements 1, may have projections or recesses which interfit corresponding recesses or projections in; the elements 1 to prevent lateral movement. The convex contour of the element 1 instead of that of the rigid plates 2 may be profiled to determine a given deflection characteristic for the mounting. The pair of intermediate rigid plates 2 may be replaced by a single plate common to both adjacent elements 1 (Fig. 10, not shown). The elements 1 may be arranged so that some elements are operative for one direction of deflection only, in accordance with the arrangement described in Italian Specification 427,217. Specification 631,693 also is referred to.
Patent GB-876690-A (GB)
Title: Preparation of organo-boron compounds
IPC: C07F5/02
Filed: 1959-07-02
Abstract: A tris(benz-1,3,2-diazoborolo)-[1,2-a:11,21-c:111, 211-e] borazole is made by reacting a boric acid ester with p  an orthophenylene diamine C6X4(NH2)2, where X represents a hydrogen or halogen atom, or an alkyl radical of 1 to 5 carbon atoms, or an alkoxy radical of 1 to 5 carbon atoms.  The reaction may be effected by heating the reactants, with or without solvents, allowing the vapour of the alcohol from which the boric ester is derived to evolve, and isolating the borazole from the solid residue, after cooling, by treatment comprising one or more crystallisations from an organic solvent. Examples describe the reaction of orthophenylenediamine with (1) isopropyl borate and (2) ethyl borate to give a product of the formula:-  <FORM:0876690/IV (b)/1> The products are useful as fuel additives and rocket fuels.
Patent GB-1060334-A (GB)
Title: Improvements in or relating to moulds for producing shaped products of plastics materials
IPC: B29C48/30
Filed: 1965-05-28
Abstract: 1,060,334. Vent-plugs for moulds. E. LENDLE. May 28, 1965 [May 26, 1964], No. 22757/65. Heading B5A. A vent plug 1 for insertion from within mould 7 into a bore (i comprises slots 2, knurling 4 and a smooth-surfaced portion 5. Preferably, the knurling is in two parts as shown. According to the invention, portion 5 allows a partial insertion without tilt, Fig. 3 (not shown), the insertion being preferably completed by using a punch (8), Fig. 4 (not shown), which causes deformation of the knurling with consequent frictional retention of the plug. The plug may protrude from the mould wall, Fig. 5 (not shown). The mould may be an injection mould and the moulding material polystyrene.
Patent GB-613028-A (GB)
Title: Improvements in or relating to the annealing of low carbon steel sheet or strip for making tin plate
IPC: C21D9/46
Filed: 1945-09-05
Abstract: In a method of annealing cold rolled low carbon steel sheet or strip for making tinplate, in order to avoid discolouration, the layers of metal sheet or strip are disposed in an annealing furnace in intimate contact with each other either as closely packed sheets or as tightly coiled strip; a gaseous atmosphere at a pressure of 0.2-0.3 inch of water in excess of atmospheric is maintained about the metal for the whole annealing process-the gas (partially burnt natural or coke oven gas) being at least slightly reducing at all temperatures from about 200 DEG F. to the maximum employed i.e. 1220 DEG -1240 DEG F. and being neutral from the carburization standpoint at said maximum temperature; the metal is heated up to and maintained for about 9 hours at the said maximum temperature and cooled in said gaseous atmosphere.  The gas employed contains 5-7 per cent CO2, 8-10 per cent CO, 10-14 per cent H2, less than 0.13 per cent CH4, traces of water vapour, and the balance N2, and is so controlled that the ratio CO2 : CO is between 0.5 and 0.7 and the ratio H2O : H2 is between 0.03 and 0.04.  A typical process comprises slowly raising the charge to 1230 DEG F. in 24 hours, maintaining it at this temperature for 8 hours, and slowly cooling at 200 DEG F. during which time the gaseous atmosphere is continually introduced.  When 200 DEG F. is attained the heating jacket is removed and the charge allowed to cool for a further 48 hours, after which the inner cover is removed-the whole process taking 4 days.
Patent GB-889901-A (GB)
Title: Apparatus for producing random impulses
Inventor: TINDALL JOHN RAYMOND
IPC: D01H5/36
Filed: 1959-07-03
Abstract: 889,901. Spinning yarns. COURTAULDS Ltd. July 1, 1960 [July 3, 1959; Feb. 4, 1960], Nos. 22874/59 and 3966/60. Drawings to Specification. Classes 120(2) and 120(3) [Also in Group XXXVII] A slub yarn is formed by passing a roving through pairs of drafting rolls, the rear pair being driven at alternating speeds by two different gear trains driving from the front pair. The engagement of the gears is controlled by a magnetic clutch which is energized at random intervals by the random operation of a microswitch (see Group XXXVII).
Patent GB-797574-A (GB)
Title: Improvements in or relating to method and apparatus for heating fluids
IPC: B01J8/02
Filed: 1956-07-24
Abstract: 797,574. Combustion in fluidized beds. OXY-CATALYST, Inc. July 24, 1956 [July 25, 1955], No. 22907/56. Class 51 (1). [Also in Group XIII] Fuel is burnt in a bed of catalytic material fluidized by a mixture of air and combustion gases emanating from another catalytic bed, the catalytic activity of the fluidized bed material being of a lower order than that of the other bed material. The combustion apparatus shown comprises a refractory-lined chamber 1, Figs. 1, 2, housinga bed 6 of catalytic pellets of relatively large size and high activity, and a bed 12 of catalytic pellets of relatively small size and low activity. The beds are separated by a grid construction 8 comprising channel bars 10, 11, Fig. 2, and the pellet sizes and the gas velocity through the chamber are so arranged that, whilst the bed 12 fluidizes to a level L, the bed 6 remains relatively static. Water - heating tubes 14 are immersed in the fluidized bed. A blower 28 supplies air for combustion and fluidization through a conduit 5, the air passing to the bed 6 through a perforate plate 3. A small amount of fuel, for oxidation therein, is supplied to the bed 6 through a pipe 30, a header 31 and pipework 7. The air thus heated, together with combustion gases arising from the oxidation, passes up through the bed 12 to which the major portion of the fuel to be consumed is supplied through a pipe 32, a header 33 and pipework 13. The air passing through the conduit 5 may be preheated by admixture with hot combustion products emanating from a furnace 34 the air and fuel to which is supplied through a blower 35 and a pipe 36 respectively. In another embodiment, combustion and fluidization air is supplied by a blower 33b, Fig. 3, and is heated in an air heater 32a disposed in a gas pass. Water for heating in the bed 23 is pumped through a tube bank 31a before passing through tubes 30a located in the bed. In both embodiments the separating grid may be dispensed with, and the fuel may be liquid, gaseous, e.g. propane, or pulverized coal or coke.
Patent GB-831249-A (GB)
Title: Improvements in or relating to the production of isoprene and other olefines
IPC: C07C11/02
Filed: 1958-07-17
Abstract: Isoprene and other unsaturated hydrocarbons are formed by the pyrolysis of propylene dimer formed by dimerizing propylene in the presence of an organo-metallic compound.  The propylene dimer formed is principally 2-methylpentene-1.  It is prepared by liquid phase dimerization of propylene in the presence of an alkyl compound of Al, Be, Ga or In, which may be formed in situ from the hydride or a complex hydride with an alkali metal.  Batch operations may be used with 1-30% by weight of catalyst based on propylene or continuous operations with 50-100%.  Temperatures of 150-210 DEG  C. can be used.  The pyrolysis can be effected at 500-900 DEG  C., e.g. in a heated coil at a space velocity of 2-12 Kg./hr./litre of space. Catalysts can be used if desired, e.g. alumina or silica.  Inert diluents are preferably present such as steam, nitrogen or a saturated hydrocarbon.  Other hydrocarbons formed include isobutene, propylene (which may be recycled), ethylene and butadiene.
Patent GB-1152544-A (GB)
Title: Resolution of dl-6-Phenyl-2,3,5,6-Tetrahydroimidazo [2,1-b] Thiazole
Inventor: BULLOCK MILON WALKER
IPC: C07D513/04
Filed: 1967-05-17
Abstract: 1,152,544. Resolving dl-6-phenyl-2,3,5,6- tetrahydroimidazo [2,1-6] thiazole. AMERICAN CYANAMID CO. 17 May, 1967 [1 June, 1966], No. 22977/67. Heading C2C. Optically inactive 6 - phenyl - 2,3,5,6 - tetrahydroimidazo [2, 1. b] thiazole is resolved by treating it with chloroform and l- (or d-)-10- camphersulphonic acid, cooling to below 35‹ C., and separating the crystalline chloroform solvate of l(-) (or d(+)) 6-phenyl-2,3,5,6-tetrahydroimidazo [2, 1-b] thiazole l- (or d-)-10-camphersulphonate thus produced from the mother liquor. By treating the residue, obtained by evaporating the above mother liquor, with hot acetone, separating the precipitated dl-6-phenyl- 2,3,5,6 - tetrahydroimidazo [2, 1-b] thiazole d- (or l-)-10-camphersulphonate, cooling the resulting acetone filtrate and separating the precipitate thus produced l(-) (or d( + ))-6- phenyl - 2,3,5,6 - tetrahydroimidazo [2, 1-b] thiazole d- (or l-)-10-camphersulphonate is obtained. The salts thus produced are converted into the corresponding optically active free bases by treating them or an aqueous solution thereof with an amine, ammonia, alkali metal hydroxide or carbonate and recovered by extracting the resulting mixture with chloroform. d- and l-10-camphersulphonic acids are prepared by resolving dl-10-camphersulphonic acid using a modification of the above process and may be isolated as their ammonium salts. The dlbase and the (H-acid can be resolved in the same operation by a further modification of the above process. Therapeutic compositions, useful for the control of helminths in warm-blooded animals, contain l(-) 6-phenyl-2,3,5,6-tetrahydroimidazo [2, 1-b] thiazole, substantially free of the disomer or a hydrogen halide salt thereof and an inert non-toxic carrier.
Patent GB-753454-A (GB)
Title: Sintered hard metals and tools and articles incorporating such metals and a process of producing such metals and tools and articles
IPC: C22C29/18
Filed: 1952-09-12
Abstract: A sintered hard metal is composed of preformed carbides of one or more of W, Mo, V, Ti, Ta and Nb bonded by a bonding material consisting of one or more of Fe, Ni and Co and chromium boride, the chromium forming 5,25 per cent, and the boron 1,5-6 per cent. of the bonding material.  The bonding material preferably does not exceed 30 per cent. by weight of the hard metal and the chromium boride may be added to the iron group metal before sintering or may be formed during sintering by adding chromium and boron powders in the appropriate proportions to the iron group metal.  Tools, e.g. chip-removing tools and drawing dies, may be formed (see Group XXII) from the hard metal or from the hard metal sintered on to a ferrous support.
Patent GB-897948-A (GB)
Title: A new or improved door closure
IPC: F16J15/53
Filed: 1960-06-30
Abstract: 897,948. Sealing gaskets. WHIRLPOOL CORPORATION. June 30, 1960 [Aug. 17, 1959], No. 23010/60. Class 20 (3) [Also in Groups XIII and XXV] A resilient gasket for a refrigerator door comprises a continuous elongated flexible magnet 20 contained within a resilient housing 22 of rubbery flexible material and a collapsible and extensible bellows 37 carrying the housing 22. The strip magnet 20 comprises an extruded polyvinyl plastic containing a barium ferrite magnetic ceramic material sold under the trade name "Indox" the strip being magnetized to obtain the north and south poles on the outer surface 21 with each pole extending substantially across one respective half of the pole face 21. The bellows 37 connects the housing 22 to a resilient base section 26 which includes a U- shaped mounting portion 32 for clamping against the door frame 13 and the bellows 37 is vented to atmosphere through apertures (not shown) in the section 26 and in the housing 22.
Patent GB-532054-A (GB)
Title: Improvements in or relating to the manufacture of unsaturated esters
IPC: C07C69/527
Filed: 1939-08-15
Abstract: 532,054. Methacrylic esters. BRITISH CELANESE, Ltd. Aug. 15, 1939, No. 23519. Convention date, Aug. 16, 1938. [Class 2 (iii)] Methallyl methacrylate is made by condensing methacrolein in the presence of an aluminium alcoholate. Aluminium ethoxide may be used as the condensing agent, but aluminium methallyloxide is preferably employed. The latter may be made by activating aluminium by treatment with absolute alcohol in the presence of mercuric chloride and iodine, and treating the activated aluminium with methallyl alcohol. In an example of the preparation of methallyl methacrylate, equal quantities of methacrolein and aluminium methallyloxide are heated in ethyl acetate. The methallyl ester may be converted to other esters by refluxing with excess of the alcohol corresponding to the desired ester in the presence of an acid catalyst, e.g. phosphoric acid. The alcohols may be monohydric, e.g. methyl, ethyl, propyl, isopropyl or butyl alcohols, or di- or trihydric, e.g. a glycol or glycerol. An example of the preparation of ethyl methacrylate is given. The products may be polymerized with the aid of light, heat, ultra-violet rays, or a catalyst such as benzoyl peroxide, to form synthetic resins which may be formed into sheets, for use as a substitute for glass, filaments, rods &c.
Patent GB-1012751-A (GB)
Title: Method and apparatus for producing controlled nuclear fusion
IPC: H05H1/22
Filed: 1962-06-15
Abstract: 1,012,751. Thermonuclear apparatus. K. NOWAK. June 15, 1962 [June 21, 1961], No. 23181/62. Heading G6P. [Also in Division HI. In a process for producing nuclear fusion reactions an electron beam is directed into the collision zone of two beams of ions. In Fig. 3 two beams of ions J 1  and J 2  are directed towards each other in a reaction zone surrounded by a cooling jacket 2 and coils 3a, 3b which produce magnetic fields in the same direction. A cathode-ray tube 5 supplies electrons to the reaction zone preferably after the ion beams have collided. Specifications 656,398, 838,443 and 878,337 are referred to.
Patent GB-1148340-A (GB)
Title: Nozzle for a bottom pouring ladle for molten metal
IPC: B22D41/50
Filed: 1967-05-18
Abstract: 1,148,340. Ladle nozzles. VESUVIUS CRUCIBLE CO. 18 May, 1967 [15 July, 1966], No. 23260/67. Heading F4B. The bottom pouring nozzle of a refractory lined ladle 2 for holding molten metal is formed from an insulating sheath 9 within which are located a wear resistant lower core 10 and an upper pyroplastic refractory seat 11 for a stopper rod 8. The sheath 9 is formed from fire clay, bubbled alumina or other porous refractory material, the core 10 for magnesium oxide, mullite, high alumina clay-graphite, or zircon, and the seat 11 from 75 to 95% zircon with the remainder zirconium oxide, or zircon and alumina, or zircon and refractory clay, or any of the materials forming the core. The core is tapered to fit within the lower part of the sheath whilst the, seat 11 is screwed into the upper part. In a modification (Fig. 2, not shown) both core and seat are screwed into the sheath. The nozzle which is mounted in a preformed or rammed refractory block 7 is supported by support ring 5. The elements forming the nozzle may be assembled before or after the sheath is located in the block 7.