baber/WOPTO huggingface dataset:
Patent GB-915808-A (GB)
Title: Control in nuclear reactors
Inventor: BELL FRANCIS ROBERT
IPC: G21C7/12
Filed: 1959-07-09
Abstract: 915,808. Nuclear reactor control rods. DE HAVILLAND ENGINE CO. Ltd. May 24, 1960 [July 9, 1959], No. 23680/59. Class 39 (4). [Also in Group XXV] A neutron-absorbing rod 11 of boron carbide can be moved into or out of a reactor core or can be dropped into the core to shut down the reactor. The rod, which cannot rotate, is moved by rotation of a screwed tube 14 itself rotated by a splined shaft 15. Tube 14 is held up by a ball lock including balls 21 which can be released by lifting the shaft 15; the shaft is urged upwards by a spring 25 but is normally held down by current flowing in a winding of an electric motor which also rotates a shaft 17 to move the control rod. Specifications 882,636 and 915,807 are referred to.
Patent GB-482580-A (GB)
Title: Improved manufacture of hydroaromatic nitrogen compounds
Filed: 1936-08-28
Abstract: Nitrogenous hydroaromatic compounds are obtained by the action of ammonia or primary or secondary amines on saturated hydroaromatic compounds substituted by (a) at least one aliphatic hydrocarbon radicle containing at least four carbon atoms, and (b) a hydroxyl or a ketonic group or a halogen atom.  When hydroaromatic ketones are treated, the reaction may be effected in the presence of hydrogen, whereby amines are obtained.  In the examples, (1) a mixture of 4-sec.-alkyl-2-methylcyclohexanols (obtained by condensing olefines containing 8-12 carbon atoms with o-cresol in the presence of perchloric acid and hydrogenating the product) is oxidized with potassium bichromate and sulphuric acid to yield a mixture of 4-sec.-alkyl-2-methylcyclohexanones, which is then heated to 150-250 DEG  C. with alcoholic ammonia in an atmosphere of hydrogen in the presence of a nickel catalyst; a 4-sec.-alkyl-2-methylcyclohexylamine mixture is obtained; (2) 4 - sec. - dodecyl - 2 - methylcyclohexanol (obtained by condensing o-cresol with dodecene and hydrogenating the product) is oxidized as in example 1 to yield 4-sec.-dodecyl-2-methylcyclohexanone, and the latter is heated with benzylamine and formic acid; 4-sec.-dodecyl-2-methylcyclohexylbenzylamine is obtained; (3) the mixture of 4-sec.-alkyl-2-methylcyclohexanones used in example 1 is heated with aniline in the presence of zinc chloride, and the imine mixture so obtained is heated in methyl alcohol solution with hydrogen in the presence of a nickel catalyst; a mixture of 4-sec.-alkyl-2-methylcyclohexylanilines is obtained; (4) the mixture of 4-sec. alkyl-2-methylcyclohexanones used in example 1 is heated with ethanolamine, and the imine mixture so produced is reduced as in example 3; a mixture of 4-sec.-alkyl-2-methylcyclohexyl-b -hydroxyethylamines is obtained; sulphonation of this product yields a product useful as a wetting, lathering and cleansing agent; (5) 4-sec.-octylcyclohexanone (prepared from n-octene and phenol with subsequent hydrogenation followed by oxidation with potassium bichromate and sulphuric acid) is heated with methylamine in methyl alcohol solution in an atmosphere of hydrogen in the presence of a nickel-kieselguhr catalyst; 4-sec.-octylcyclohexylmethylamine is obtained, and 4-sec.-octyl-2-methylcyclohexylmethylamine is similarly obtainable.  Other hydroaromatic compounds which may be treated are the derivatives, substituted as stated above, of decahydronaphthalene and dodecahydrodiphenyl.  Other aliphatic hydrocarbon radicles which may be present as substituents are butyl, amyl, hexyl, heptyl, nonyl, decyl, undecyl, tetradecyl, hexadecyl and octadecyl.  Other amines which may be used are ethylamine, diethylamine, methyloxyethylamine, diethanolamine, 2-aminopyridine, cyclohexylamine, taurine and glycine.
Patent GB-1012610-A (GB)
Title: Improvements in or relating to apparatus for cooling agglomerated material
IPC: F16J15/56
Filed: 1964-06-09
Abstract: 1,012,610. Cooling sintered &c materials. GUTEHOFFNUNGSHUTTE STERKRADE A.G. June 9, 1964 [June 11, 1963], No. 23769/64. Heading F4B. Sinter discharged from the pallets 4 of a conveyer 3 is passed by a crusher 6 into a reciprocating wheeled cooling trough 7, formed with a louvred wall 11 on one side discharging cooling air from a duct 10 supplied by fans 12, and an outer wall 18 terminating short of the bottom plate 14 so that as the trough reciprocates, cooled sinter is discharged into a conveyer 17 by one of a pair of pivotable ploughs 15. The latter are alternately extended at an acute angle into the sinter as the trough reciprocates on rails 10 below the crusher, Figs. 7 and 8 (not shown). In a modification, Fig. 3 (not shown), the duct is arranged centrally with a trough on either side and in a further modification, Fig. 4 (not shown), two ducts are arranged round a central trough. A final modification, Figs. 5 and 6 (not shown), has again a central duct with lateral troughs wholly supported by beams from the central structure. The cooling trough may be arranged transversely of a number of parallel sinter conveyers.
Patent GB-1207323-A (GB)
Title: A.c. system fault indicator
Inventor: SMITH JOHN WALTER FREEMAN
IPC: H01H83/14
Filed: 1967-05-23
Abstract: 1,207,323. Protective arrangements. ENGLISH ELECTRIC CO. L t d. 21 May, 1968 [23 May, 1967], No. 23842/67. Heading H2K. A fault-indicating arrangement for an A.C. system comprises means deriving energy from oapacitative leakage currents through the insulators 1 ... 3 for the conductors of the system, sensing coils 4 ... 6 mounted adjacent the conductors, to sense the currents therethrough, atripping circuit powered by said energy and responsive to an abnormal current sensed, and a resetting circuit powered by the said energy to nullify the indication when the system is restored to normal. The means for deriving energy may comprise conductive coatings 8 on insulators 1 . . . 3 which have cavities accommodating the coils 4 ... 6. The inner coatings 8 are connected through a rectifier bridge 12 . . . 14 to capacitors 44, 46 which are charged by the leakage currents and provide the energy to power the circuits. The coils 4 . . . 6 are con. nected in star to resistors 22 ... 24 so that in the event of excess current, one or more transistors 26 . . . 28 is 'caused to conduct and in the event " of earth leakage, the residual current produces a voltage across voltage-limiting diodes 30, 31. This voltage, amplified by transistors 33, 34, 38, or that due to conduction of one of the transistors 26 . . . 28, turns on a transistor 39 to turn on a transistor 40 to energize a trip coil 41 of a flag indicator, a time delay provided by a resistor 42 and capacitor 43 ensuring that the coil is energized for an adequate period. A reset coil 52 is periodically energized when the charge in the capacitor 46 is sufficient to cause a zener diode 47 to conduct so that transistors 49, 50 switch on. This resetting action is prevented when the trip coil 41 is energized by transistors 53, 54 which are switched on to provide a discharge path for the capacitor 46.
Patent GB-1219258-A (GB)
Title: Resinous composition
IPC: C08L27/06
Filed: 1969-05-12
Abstract: 1,219,258. Polymer blends. B. F. GOODRICH CO. 12 May, 1969 [13 May, 1968], No. 23959/69. Headings C3G and C3P. A rigid thermoplastic resin composition comprises a vinyl chloride polymer and 0À5-8 parts per hundred parts of such polymer of an amorphous polypropylene containing not more than 30% wt. of crystalline structure and having a weight average molecular weight of 15,000- 40,000, a softening point of 70-95‹ C. and a brittle point not above 0‹ C. The blends may be prepared by normal mixing techniques or in a preferred method by dissolving the polypropylene in monomeric vinyl chloride which is then polymerized in aqueous suspension; if the product contains more than the required amount of polypropylene it may be mixed with P.V.C. free from polypropylene. The vinyl chloride polymer may be a homopolymer or a copolymer, particularly with propylene. There may also be present ABS copolymer or graft copolymer, styrene-acrylonitrile copolymer, dibutyl tin dithioglycollate, calcium stearate and titanium dioxide.
Patent GB-1519492-A (GB)
Title: Speech recognizing method
IPC: G10L15/00
Filed: 1975-06-04
Abstract: 1519492 Speech recognition FUJI XEROX CO Ltd 4 June 1975 [4 June 1974] 24070/75 Heading G4R Speech is recognized by determining a set of different characteristics applicable to different speakers which represent phonemes, determining which of the different characteristics are applicable to a particular speaker, and using those characteristics to identify speech spoken by the particular speaker. For a reference speaker characteristic parameters Xi are evaluated from a signal F from the speaker which is divided into frequency components Fj using band pass filters. The parameters Xi represent phonemes Xi and are determined from equations where αij is a weight corresponding to each phenome Xi and is particular to the speaker, #ij is a weight corresponding to a phoneme Xe which is liable to be confused with phoneme Xi and γi is a threshold level. The values of Xi are determined by equations To identify speech from other speakers the weights α, # are changed so that a plurality of parameters are formed so that and Known words from an arbitrary speaker are divided into frequency bands Fj which are sampled at predetermined instants and the parameters Xik are determined. The parameters are compared with the corresponding parameters for the same words from the reference speaker and the parameters giving the closest match are selected as the parameters applicable to the arbitrary speaker. The α and # values are then used to determine the parameter Xi from further speech from the arbitrary speaker and the parameters obtained are compared with a reference to determine if the reference word and the speaker's word match.
Patent GB-1139920-A (GB)
Title: Process for the production of porous zeolitic molecular sieve granulates
Inventor: FUERTIG HELMUT
IPC: B01J20/18
Filed: 1966-05-31
Abstract: 1,139,920. Porous zeolitic molecular sieve granulates. FARBENFABRIK WOLFEN VEB. 31 May, 1966, No. 24138/66. Heading C1A. Porous zeolitic molecular sieve granulates are produced by mixing powdered zeolitic molecular sieve with a binding agent (and, optionally, water), mixing with either component or with the mixture at least one fine-grained solid material that is (a) completely gasified by chemical reaction, evaporation or sublimation at up to 750‹ C., or (b) soluble in water and/or organic solvents. In the first case, the mixture is formed and heated to 750‹ C. to remove the fine - grained solid. If it is combustible, the temperature must be at least 150‹ C. for 15 minutes in oxygen or an oxygen-containing gas. If the material is volatile, the temperature is over 100‹ C. for at least 15 minutes, optionally in an inert gas instead of oxygen. In case (b), the formed mixture is thermally consolidated at 40‹ to 750‹ C. washed with water and/or organic solvents and the solvents removed by heat or evacuation. The fine-grained solid material particle size may be 1 mm. or less. Specified fine grained materials are charcoal, soot, graphite, coal, coke, sawdust, corn meal, starch powder, generator dust, synthetic resin powders, soluble or volatile inorganic salts (NaCl, Na 2 CO 3 , KCl, CaCl 2 , MgCl 2 , (NH 4 ) 2 - CO 3 , NH 4 Cl) and volatile organic substances (ammonium oxalate). Numerous zeolites are mentioned. Exemplified binding agents are bentonite and kaolinite.
Patent GB-654282-A (GB)
Title: Improvements in and relating to the manufacture of carburetted water gas
Inventor: WILLIAMS NORMAN HENRY
IPC: C10J1/213
Filed: 1948-09-16
Abstract: 654,282. Carburetting water gas. HUMPHREYS & GLASGOW. Ltd. Sept. 16, 1948, No. 24353. [Classes 55(i) and 55(ii)] Carburetted water gas apparatus includes an " empty" type down-flow carburetter divided by a throat into an upper and lower chamber, gases from the generator passing into the upper chamber through a tangential inlet and thus acquiring a spinning motion which is maintained as they pass through the throat and down through the lower chamber, which is provided with a spray for heavy oil. In the form shown, the blow and run gases from a generator a pass through a pipe d to enter the top of carburetter b tangentially. The carburetter is divided into an upper chamber b<1> and a lower chamber b<2> by a throat h<1> located below the level of the inlet pipe d. The lower chamber is provided with an oil spray i and is connected to a superheater by a pipe j. The spinning motion acquired by the gases entering chamber b<1> tangentially is retained as they pass into the chamber b<2>, the effect being to cause the gases to sweep around the walls of that chamber. During the blow, secondary air is admitted at g in pipe d and from ports k, the air from the latter serving to burn off any carbon deposited on the chamber walls, as described in Specification 654,283. The degree of spinning motion imparted to the gases is varied from blow to run, for example as shown in Fig. 6, an adjustable deflecting vane l being arranged opposite the end of pipe d. Other methods of varying the spinning motion are described in Specification 654,284. Specifications 654,280 and 654,281 also are referred to.
Patent GB-1010049-A (GB)
Title: Spool container
IPC: D05B91/14
Filed: 1964-06-12
Abstract: 1,010,049. Spool container. M. C. McDIARMID. June 12, 1964, No. 24414/64. Heading A4G. A container for a spool of thread comprises a longitudinally slit cylinder 20 of resilient material, e.g. of clear plastics or metal, a logitudinal rib 21 on the inner cylindrical surface opposite the slit and having its bevelled ends spaced from the cylinder ends whereby the cylinder radially enlarges on receiving a spool 25 and contracts when the spool is retained by the rib entering between the spool rims 24.
Patent GB-1088644-A (GB)
Title: A bath and a process for electrodepositing an iron group metal
IPC: C25D3/20
Filed: 1966-06-02
Abstract: An iron group metal (i.e. Fe, Co, Ni or an alloy of these metals) is electro-deposited from a bath comprising at least one iron group metal salt and a reaction product of sulphamide and a compound having at least one carbonyl group. The process can produce magnetic deposits having nearly square hysteresis loops. The metal salt may be Fe, Co or Ni chloride or sulphate. The carbonyl compound may be 2, 4- or 3, 4-pentanedione, 2, 3-butanedione, 4 oxopentanoic acid, 2, 5, 8-nonantrione, 1, 4-cyclohexadienedione, 2-propanone, methyl glyoxal, 2, 3, 4-pentanetrione or 2, 4, 6-heptanetrione.  Further additives included in some of the baths are NH4Cl, NaH2PO2.H2O, H3BO3, sodium diamyl sulphosuccinate, 2-butyne-1,4-diol and sodium lauryl sulphate. In the examples the electro-deposited metals are (1) Co-Ni on polyethylene terephthalate film plated with electroless Ni, (2) and (3) Ni on a polished brass panel, (4) (5) and (6) Ni-Fe on Cu foil. The article being treated may be a continuous web which is passed as a cathode through the electrolysis bath at a uniform speed.ALSO:Sulphamide is reacted with a compound having at least one carbonyl group to give a product for use in an electrodeposition bath (see Division C7).  The carbonyl compound may be any of the following with the molar ratio of carbonyl compound to sulphamide as indicated in brackets  2,4-Pentanedione (1:1) 2,3-Butanedione (1:1) 4-Oxopentanoic acid (2:1) 2,5,8-Nonanetrione (2:3) 1,4-Cyclohexadienedione (1:1) 2-Propanone (2:1) Methyl glyoxal (2:1). The sulphamide and carbonyl compound are heated under reflux for about one hour with ethanol, or ethanol and water, and as catalyst NaOH or HCl.  The reaction product is crystallized by evaporating the solvents under reduced pressure.  The 2,5,8-nonanetrione is prepared by pyrolysis of calcium levulinate 4-Oxopentanoic acid is heated with CaCO3 and heated gently to drive off water which forms.  The dry calcium salt is then strongly heated and the 2,5,8-nonanetrione collected as a distillate under reduced pressure.
Patent GB-970841-A (GB)
Title: Method and apparatus for the froth flotation of ores
IPC: B03D1/24
Filed: 1963-06-20
Abstract: 970,841. Froth flotation. P. BOUTIN, and R. J.-J. TREMBLAY. June 20, 1963 [July 14, 1962 ; June 4, 1963], No. 24654/63. Heading B2H. Froth flotation of the comminuted solids in an aqueous slurry is effected by injecting the slurry, together with an agent to make one or more of the solids hydrophobic, into a column 1 within which an aqueous medium flows downwardly while bubbles rise upwardly. From the point at which the slurry is introduced into the column the treated solids rise upwardly with the bubbles and are extracted at 40 while the rest are carried downwardly with the aqueous medium and are extracted at 22. The bubbles are generated at 28. The aqueous medium is admitted at 38. The slurry is pumped into the column from a conditioning tank. The downward velocity of the aqueous medium may be increased at the top of the column by reducing the flow cross-section or by introducing some of the medium part way down the column. The froth may be run out on a set of inclined slats  leading to outlet 40. Lists of reagents, regulators and frothers are given as well as examples of the flotation process applied to iron and copper ores and molybdite. Experimental data attaching to working conditions are also provided.
Patent GB-708452-A (GB)
Title: Improvements in or relating to a system for the cooling of compressed gas
IPC: F25B9/04
Filed: 1951-10-23
Abstract: 708,452. Refrigerating; drying gases. LINDE, R. VON. Oct. 23, 1951 [Oct. 23, 1950], No. 24682/51. Classes 29 and 34(1) In a gas cooling and drying apparatus using a vortex tube 15 of the type described in Specification 405,781, the compressed gas before its expansion is cooled by the cooled partial current in a heat exchanger 10, and the cooled partial current amounts to at least 70 per cent of the total current. The compressed gas supplied through a pipe 5 is first cooled in a precooler 6, the separated moisture being removed at 8, and then passes through the tubes 11 of the heat exchanger 10 and through a pipe 14 to the tangential nozzle 16 of the Ranque vortex tube 15. Cold air from the vortex tube passes by a pipe 19 to the heat exchanger and issues through a pipe 21. Precipitated liquid is removed by a separator 28. The warm air issuing through the valve 25 of the vortex tube 15 passes to the place of use through a pipe .23 to which is also connected the pipe 21. If ice, &c. is formed two heat exchangers can be used operating alternately. To avoid the formation of frost a de-icing fluid is distributed by a pipe 27 to a porous substance 29 through which the compressed gas passes. A de Laval nozzle is used to feed the compressed gas tangentially into the tube 15, and the gas rotates in the tube at supersonic speed. The apparatus may be used to dry protective gases for furnaces. Specification 678,420 also is referred to.
Patent GB-302675-A (GB)
Title: Apparatus for cutting and separating the quills or ribs of feathers from the barbs thereof
IPC: B68G3/10
Filed: 1927-09-20
Abstract: 302,675. Bryden, W., Bryden, T., and Sykes, H. Sept. 20, 1927. Fibres, obtaining.-In a machine for detaching the barbs and shredding the quills of feathers, feed rollers 3 feed the feathers to rotary saws or cutters 5 driven in the same or in opposite directions by gearing 12 from a pulley 18. The saws are mounted on a carriage 11 reciprocated by a crank and consist of serrated discs of different diameters threaded upon shafts 10. A belt-driven fan extracts the detached barbs. In a modifica,- tion, reciprocating saws are used.
Patent GB-1477490-A (GB)
Title: Helicopter rotor balde
IPC: B64C27/467
Filed: 1974-06-04
Abstract: 1477490 Helicopter rotor blade UNITED TECHNOLOGIES CORP 4 June 1974 [4 June 1973] 24792/74 Heading B7W The subject-matter of this Specification is very similar to that described in Specification 1,391,940 but differs in respect of the negative twist of the blade tip portion, which in the present specification lies within the range of - 1 and - 8 degrees. Reference has been directed by the Comptroller to Specifications 1,391,939 and 1,391,940.
Patent GB-771989-A (GB)
Title: Improvements in or relating to vibrating reeds for electromagnetic relays
IPC: H01H51/32
Filed: 1955-08-30
Abstract: 771,989. Electromagnetic interrupters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Aug. 30, 1955 [Oct. 25, 1954], No. 24836/55. Class 38(5) A vibratory reed is cut out from sheet metal and bent to form lugs 13, 14 at the end portion 12 which is fixed to the relay magnet 16 by screws 17 passing through a block 15, the vibratory portion 11 extending from the point 18.
Patent GB-425410-A (GB)
Title: Sound-reproducing apparatus
IPC: G03B31/02
Filed: 1933-09-07
Abstract: 425,410. Optical sound-reproducing apparatus ; combined sound-reproducing and kinematograph apparatus. RADIO CORPORATION OF AMERICA, 30, Rockefeller Plaza, New York, U.S.A. Sept. 7, 1933, No. 24845. Convention date, Oct. 14, 1932. [Class 40 (ii)] Apparatus for reproducing sound recorded on a film, particularly a kinematograph film, comprises a casing 1, a motor 5 mounted longitudinally upon the casing so that a portion thereof forms one of the end bells of the motor, gearing operated from the shaft of the motor and housed in the casing for driving the soundrecord therethrough, and an oil-tight seal around the shaft between the gearing and the motor. As shown, the motor carries upon its shaft a worm 10 which gears with a bronze worm-wheel 11 to drive the main shaft 11<1> of the machine The worm gearing runs in oil in an oil-tight compartment, a seal around the motor shaft being provided at 5<1> between the said compartment and the motor. The shell of the motor is separated from the cast-iron body of the casing 1 by an aluminium ring 9, to insulate the motor magnetically and to short-circuit eddy currents. The main shaft 111, which carries the constant-feed sprocket 12, also carries two other gears, one of which, (not shown), drives the fibre gear of the picture projector, whilst the other, 14, drives a fibre gear 15 which drives the " hold-back" sprocket 13. The latter prevents irregularities in the motion of the take-up reel from being transmitted to the sound-reproduction point of the film. A removable partition 17 in the casing 1 forms a compartment in which the exciter lamp 20 and an optical system 35 are housed. Light from the lamp is focused upon the film at the point P, Fig. 4, and after passing through the film it is deflected by a prismatic convex lens 36 on to a photo-electric cell 37 in a housing 371. Current from the cell passes to a transformer which is mounted on vibration-absorbing material in a recess at the back of the main casing. The recess is closed by a heavy metal door. The Specification as open to inspection under Sect. 91 describes a vibrating-damping device for controlling the motion of the drum 50 which is driven by and supports the film at the soundreproduction point, which device is similar to that described in Specification 415,184 ; it also describes constructional features now forming the subject-matter of Specifications 425,438, 426,688, and 428,505. This subjectmatter does not appear in the Specification as accepted.