baber/WOPTO huggingface dataset:
Patent GB-1125199-A (GB)
Title: Preparation of cyclohexanone
IPC: C07C45/00
Filed: 1967-08-03
Abstract: 1,125,199. Cyclohexanone. INVENTA A.G. FUR FORSCHUNG UND PATENTVERWERTUNG. 3 Aug., 1967 [12 Aug., 1966], No. 36648/67. Heading C2C. Cyclohexanone is prepared by trickling liquid phenol over a Pt-group metal catalyst at below 250‹ C. in presence of H 2 .
Patent GB-344345-A (GB)
Title: Improvements in or relating to vulcanizers
IPC: B29D30/06
Filed: 1929-11-21
Abstract: 344,345. Vulcanizing tyres. FIRESTONE TYRE & RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.- (Fireatone Tire & Rubber Co. ; Akron, Ohio, U.S.A.) Nov. 21, 1929, No. 35655. [Class 70.] A vulcanizing unit for vulcanizing a single tyre comprises two separable vulcanizer sections containing mould sections, one of the mould sections being carried in the vulcanizer section by a floating ram adapted to press the mould sections together when the vulcanizer is closed. A pressure-fluid supply system is provided including valves which co-operate when the vulcanizer is closed. Means for evacuating the air from the mould sections may also be provided. As shown in Figs. 2 and 3, the unit comprises two vulcanizer sections 15, 17 and two mould sections 20, 21. The upper mould section 21 is carried by a ram 22 mounted in the upper vulcanizing section by means of an annular diaphragm 27. The vulcanizer sections are adapted to be locked together by a looking ring 31 of the bayonet joint type operated by a rack and pinion. Pressure fluid is admitted to the space above the ram by a flexible supply pipe 43, valves 42, 41 and duct 39. The valves establish connection when the parts are closed. A cranked lever 47 controlling a valve on a suction line 35 is operated by a stem on the valve 42 so that the air is evacuated from the mould sections at the start of the vulcanizing operations. The steam or other heating medium is supplied to the chamber 23 in the lower mould section through an inlet duct 49, Fig. 3, passing through the lower vulcanizer section, and connections for the supply of steam to the upper mould section are provided by ducts 50, 51 on the inner and outer edges of the mould sections. Leakage is prevented by rubber sleeves 52, Fig 5. The system for supplying heated pressure medium to the pressure bags 55 within the tyres includes conical plugs 75, Figs. 12 and 14, attached to stems 69, 70a, on the air bag, and corresponding recessed members 74 movably mounted in supporting members 76 which are movably mounted in the lower mould section and are pressed outwards by springs 83. The supporting members 76 have jaws 84 formed with downwardly tapering openings 85 adapted to guide the plugs 75 into engagement with the members 74. When pressure is applied the members 74 are pressed firmly against the plugs by pressure in the expansible tube 80.
Patent GB-883332-A (GB)
Title: Improvements in or relating to sleeves of shirts and similar sleeved garments
IPC: A41F19/00
Filed: 1957-11-15
Abstract: 883,332. Shirt sleeves. LIGHT, B. Oct. 17, 1958 [Nov. 15, 1957], No. 35658/57. Class 141 A shirt sleeve is adjustable in length by means of an elastic fabric tape 1 having button-holes 4 for selective engagement with a pair of buttons 7 spaced longitudinally of the seam 8 inside the sleeve. A further adjusting tape may be located opposite the seam 8. The tape comprises a woven fabric coated on one face with rubber, polyvinyl chloride &c. According to the Provisional Specification the tape may be inextensible, or it may be an extensible strip of rubber, polyvinyl chloride, polythene &c. Instead of buttons and buttonholes for fastening the tape to the sleeve, hooks and eyes or press-studs may be used; press-stud fasteners may be moulded integrally with a strip of plastics material, the complementary socket parts being provided on another strip attached to the sleeve.
Patent GB-864674-A (GB)
Title: Wind belt for shaft furnaces
IPC: F27B1/16
Filed: 1957-11-15
Abstract: 864,674. Shaft furnaces. STRICO GESELLSCHAFT FUR METALLURGIE UND WARMETECHNIK. Nov. 15, 1957 [Jan. 29, 1957], No. 35677/57. Class 51 (2). The wind belt 1 of a shaft furnace 2 is divided into two sections, through which the blast introduced at 3 travels in opposite directions, by a vertical partition 5 coinciding with the centre lines of the tuyere connections 4, and by partitions 7 and 8 extending from the top edge of the partition 5 to opposite side walls of the wind belt. The partitons 7 and 8 slope upwardly from the inlet 3 to a point diametrically opposite. Vanes 6 are arranged near the inlet to help divert the blast.
Patent GB-1510359-A (GB)
Title: Means for the brushless excitation of a synchronous electrical machine
IPC: H02K19/38
Filed: 1975-08-29
Abstract: 1510359 DC excited synchronous machines ASEAAB 29 Aug 1975 [30 Aug 1974] 35687/75 Heading H2A In an arrangement for the brushless excitation of a variable speed synchronous machine, the D.C. side of a polyphase rectifier bridge 4 mountable on the rotor 2 of the synchronous machine is connectible to the field winding 3 of the rotor 2, and the A.C. side of the bridge 4 is connected to a polyphase asynchronous machine rotor 6 which is surrounded by an asynchronous machine stator and which is mechanically coupled to the synchronous machine rotor 2; the stator winding 7 of the asynchronous machine is connectible to a single phase A.C. supply, and a part q of the winding 7 comprising at least one phase winding is short circuited; and the angle between the magnetic axis of the short circuited winding part and the resulting magnetic axis of the winding parts fed by the single phase supply is 90 degrees. In the arrangement shown, the A.C. fed parts SO, OR have a magnetic axis (#S+#R<SP>1</SP>) perpendicular to the axis #T of OT.
Patent GB-170543-A (GB)
Title: Improvements in means for feeding fuel to furnaces
IPC: F23K3/00
Filed: 1920-12-20
Abstract: 170,543. Soc. d'Utilisation des Combustibles PulvÚrisÚs. Oct. 16, 1920, [Convention date]. Fuel, feeding.-Powdered coal is fed to furnaces by a rotary disc 2 provided with radial apertures 2a, each of which is filled with fuel from the hopper 1 and discharged into the passage 4 alternately as the disc rotates above the plate 3. The discharge of fuel is regulated by a sliding plate 5. The disc is carried by a vertical spindle 6 driven by worm or bevel gearing. A stirring- device 10 arranged in the hopper is operated by the movement of the disc. The plate 5 is inclined to the axis passing centrally through the passage 4 and the hopper and the apertures in the disc are sufficiently numerous to allow a continuous discharge of fuel.
Patent GB-1460239-A (GB)
Title: Method for increasing metallic yield in bottom-blown steelmaking processes
IPC: C21C5/34
Filed: 1975-08-29
Abstract: 1460239 Varying O 2  input in bottom-blown steelmaking USS ENGS & CONSULTANTS Inc 29 Aug 1975 [30 Aug 1974] 35767/75 Heading C7D In a bottom-blown process for converting pig iron into steel with # 0À08%C, balance Fe and incidental residual steelmaking elements, an O 2 -containing gas is initially introduced at total rate R T , where R T  is the sum of R o , the initial rate of introduction of O 2 , and R p , the rate of introduction of protective gas (e.g. in a Q-BOP process) and where R o  # Rp and R o  = 75 to 150 NCF per minute per ton of metal, and then after the C content has decreased to 0À25%, the input rate of O 2  is decreased while keeping RT substantially at the initial level by introduction of a non-deleterious gas, according to the following schedule: (a) as C content decreases from 0À25% to 0À18%, average O 2  input = 0À4-1À0 R o  (b) as C  decreases 0À18%-0À09%, O 2  input = 0À3-0À8 R o  and (c) as C decreases from 0À09% to the final level, O 2  input = 0-0À5 R o . The protective gas may be methane, and the non-deleterious gas Ar, N 2 , H 2  or natural gas.
Patent GB-831426-A (GB)
Title: Improvements relating to electron gun assemblies
IPC: H01J29/48
Filed: 1956-11-22
Abstract: 831,426. Cathode-ray tubes. GENERAL ELECTRIC CO. Nov. 22, 1956 [Nov. 22, 1955], No. 35786/56. Class 39(1). A cathode 26, Figs. 4, 5, is mounted in an insulating collar 31 which is secured to a main electrode support 17 by a first strap 37 grasping the collar and the cathode is fixed axially within the collar by a second strap 29 secured round the cathode and fixed to the first strap. If the cathode is to be replaced it is only necessary to break strap 29 and slide a new cathode into the collar 31. Strap 37 may be duplicated on the other side and strap 29 may be formed integrally out of the cathode. Fig. 8 shows how the cathode is correctly spaced from control electrode 12 by jig 38 with a control pin 41 passing into the cathode. The main support members such as 17 are then melted so that straps can be pressed into them.
Patent GB-301832-A (GB)
Title: Improvements in or relating to froth-flotation concentration of ores
IPC: B03D1/012
Filed: 1928-12-05
Abstract: 301,832. Minerals Separation, Ltd., (Assignees of Keller, C. H.). Dec. 6, 1927, [Convention date]. Phenyl and other organic sulphides.-An agent for use in a froth-flotation process is obtained by effecting a reaction between a hydrocarbon and sulphur in the presence of a metal and chlorine, the chlorine being combined with either the sulphur or the metal. The preparation of reagents from the following mixtures is described : (a) benzene, sulphur chloride, and zinc; (2) benzene, sulphur, and aluminium chloride; (c) nheptane, sulphur chloride, and zinc.
Patent GB-1269727-A (GB)
Title: Process for forming polymer images from photographic images
IPC: G03F7/028
Filed: 1969-07-16
Abstract: 1,269,727. Polymerization in the presence of aromatic diamines. FUJI PHOTO FILM CO. Ltd. 16 July, 1969 [16 July, 1968], No. 35903/69. Heading C3P. [Also in Division G2] Vinyl or vinylidene monomers are polymerized by contacting them with a latent imagebearing silver halide emulsion in the presence of water and a m-phenylene diamine or a naphthalene diamine, the amino groups being in the 1,3-, 2,7-, 1,6- or 1,8-positions, to produce a polymer image corresponding to the latent image. Either the monomer or the diamine may be included in the emulsion or both may be applied as a solution to the image bearing emulsion. The polymer image may be enhanced by applying a conventional silver halide developer before or with the diamine to the emulsion. The polymerization may also be carried out in the presence of sulphite ions and/or a thermal polymerization inhibitor. Specified monomers are acrylamides, acrylates, acrylic acid, acrylonitrile, and their methacrylic counterparts, vinyl monomers such as vinyl benzenesulphonates, vinyl pyridines and vinyl compounds having quaternary ammonium compounds and mono- and polyethylene glycol dimethacrylates.
Patent GB-1121364-A (GB)
Title: Synthetic lubricating oil
IPC: C07C69/34
Filed: 1965-08-23
Abstract: Synthetic lubricating oils comprise a blend of di-secondary alkyl esters of an aliphatic dicarboxylic acid and an isomeric mixture of secondary straight-chain alcohols having at least 5 carbon atoms per molecule.  Isomeric mixtures of secondary straight chain octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl and pentadecyl alcohols are mentioned and they may be prepared by direct oxidation of straight-chain paraffinic hydrocarbons.  Dicarboxylic acids are listed and examples describe the reaction of sebacic acid with an isomeric mixture of secondary n-octyl and n-dodecyl alcohols. Conventional additives may be included in the ester lubricants.ALSO:Dibasic esters are prepared by reacting an aliphatic dicarboxylic acid with an isomeric mixture of secondary straight-chain alcohols with at least 5 carbon atoms per molecule. The resulting blend of esters is used as a synthetic lubricating oil. Isomeric mixtures of secondary straight chain octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl and pentadecyl alcohols are mentioned and may be prepared by direct oxidation of straight chain paraffinic hydrocarbons.  Dicarboxylic acids are listed and examples describe the reaction of sebacic acid with an isomeric mixture of secondary n-octyl and n-dodecyl alcohols.
Patent GB-1114634-A (GB)
Title: Improvements in or relating to a charged particle source having a low rate of flow ofneutral gas
Inventor: ETIEVANT CLAUDE
IPC: H01J27/02
Filed: 1966-08-11
Abstract: 1,114,634. Ion sources. COMMISSARIAT A L'ENERGIE ATOMIQUE. 11 Aug., 1966 [20 Aug., 1965], No. 36001/66. Heading H1D. An ion source with axial or planar symmetry comprises an electron emitting cathode 6 and a pipe 7 for introducing gas, an electrode 5 with an ion extraction aperture 8, and a plurality of alternately positive and negative electrodes 9, 10 immersed in an axial magnetic field. The discharge mechanism is such that electrons and ions oscillate in the potential wells of the positive and negative electrodes respectively and a dense plasma is formed. The chamber wall 2 has a cooling circuit 3. In another embodiment with a cylindrical chamber, Fig. 2 (not shown), the negative electrodes partition the chamber into successive chambers between which there is a pressure gradient. A suitable gas is hydrogen with the pressure varying from 10-1 Pascal to 2À10<SP>-2</SP> Pascal. In an embodiment with the chamber in the form of a flat box, Fig. 3 (not shown), the negative electrodes are constituted by pairs of flat plates and the positive electrodes by rectangular plates with rectangular apertures. A number of cathodes are provided in the end wall of the chamber. A further embodiment, Fig. 4 (not shown), comprises an annular chamber of rectangular cross-section. In all embodiments the magnetic field may be uniform or of varying intensity with e.g. a magnetic mirror field in the region of the cathode. Coils or permanent magnets may be used.
Patent GB-977032-A (GB)
Title: Thermometers
IPC: G01K5/64
Filed: 1961-10-06
Abstract: 977,032. Temperature-responsive actuating elements; thermometers. J. GRAW. Oct. 6, 1961, [Oct. 6, 1960], No. 36069/61. Heading G1D. A bimetallic strip 2, Fig. 1, such as for use in a thermometer attached to a radio-sonde, has thin metal wires 9 attached thereto to increase the response to ambient temperature and reduce the response to radiation. The wires 9 may be attached to the interface 6 between the two layers 4, 5 of the bimetal strip. Alternatively the wires may be attached in the form of tufts to the outer face of the bimetal. There may be thermally insulating and radiation reflecting layers around the bimetal with the wires passing through both layers. In another form the bimetal is a wire which tapers from an end of elongated cross section to a circular sectioned end carrying the pointer 7 moving over a scale 8. Alternatively the wires may extend across recesses in the bimetal or form a grid 42, Fig. 8, either directly attached to one end of the bimetal or connected through a thermally conducting bridge piece 40. The bimetal may be surrounded by an insulating shield 28. When used in a radio-sonde the pointer may move over a morse-cylinder feeding a transmitter. The wires may be in the form of five cores fixed to the bimetal, or may be produced by electrolytic etching of the bimetal.
Patent GB-391536-A (GB)
Title: Improvements in and relating to means for intermittently opening and closing alternating current electric circuits
IPC: H02P25/32
Filed: 1931-12-31
Abstract: 391,536. Controlling consuming devices. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Electricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 31, 1931, No. 36096. Convention date, Dec. 31, 1930. [Class 38 (iv).] Means for intermittently opening and closing an alternating electric circuit comprises a pair of appositely connected vapour electric discharge devices 7, 8. These devices conduct a portion of each half cycle depending upon the magnitude and the. phase, relative to .the anodes, of the potential of the grids. These grids are energized through a phase shifter 13. In the system disclosed, the discharge devices control the secondary circuit 4 of an induction motor.
Patent GB-1006406-A (GB)
Title: Process for the manufacture of 1,2-di(aminomethyl)-cyclobutane
IPC: C07C209/48
Filed: 1964-09-03
Abstract: A process for the manufacture of 1,2-di-(aminomethyl)-cyclobutane comprises dissolving 1,2-dicyanocyclobutane in an inert solvent and treating the latter with hydrogen at a temperature of about 100-200 DEG  C., preferably 150-180 DEG  C. under a pressure of about 100-500, preferably 250-300 atmospheres gauge pressure in the presence of a hydrogenating catalyst, e.g. palladium, platinium, Raney cobalt or Raney nickel and at least a molar excess proportion of ammonia, preferably of at least 5 mols. per 1 mol. of butane compound, the resulting reaction mixture being allowed to release and to cool and the 1,2-di-(aminomethyl)-cyclobutane removed by distillation. The 1,2-di-cyanocylobutane may be prepared by dimerizing acrylo-nitrile.  Several examples are given. Specifications 900,356 and 900,357 are referred to.
Patent GB-1392708-A (GB)
Title: Determination of moisture content in hygroscopic material
IPC: G01R27/26
Filed: 1971-07-31
Abstract: 1392708 Measuring moisture content electrically WIRA 23 June 1972 [31 July 1971] 36131/71 Heading G1N The moisture deviation per unit of standard mass at standard moisture content, #W/Mo of a sample of fibrous material is determined electrically from the equation:- and M o  is the standard mass, W o  is its moisture content and C o  the capacitance change it produces of a reference sample and #M, #W, #C are the corresponding deviations from the reference sample of the production or batch sample. A reference sample 4 of fibrous material (textile, tobacco, wood, powder) of standard mass, standard moisture content and standard capacitance change it effects is placed on base 3 between the plates 1 of a measuring capacitor which forms part of oscillator circuit 2. The potentiometers Py, Px are then set according to the characteristics of the reference sample and oscillators 2, 6 adjusted to have equal frequencies, a final adjustment of the apparatus being made until meter 14 reads the known moisture content deviation in relation to the standard mass. The reference sample is then replaced by a production sample which will result in the frequency of the measuring oscillator changing and the frequency difference detected by mixer 8 is representative of the capacitor changes due to deviation in moisture content, mass and temperature of the production sample from the reference sample. To compensate for the deviations in temperature the signal from mixer 8 is modified in signal rectifier 13 by a signal from amplifier 12 the input of which is connected to a temperature probe 1 linserted in the sample and which may be a resistance thermometer, thermistor or thermocouple. After multiplying by the factor Px in potentiometer Px the signal is added to a signal representative of the total mass deviation per unit of standard mass at standard moisture content multiplied by the factor Py in potentiometer Py to give a reading on meter 14 representative of the percentage mass deviation in moisture content per unit of standard mass and since the latter is known the total moisture content deviation can be obtained. The mass deviation signal is obtained from a strain gauge 10 rigidly connected to base 3 and amplifier 9, the D.C. output of which is indicated by meter 15. Instead of having two oscillators only one is used which is provided with an adjustable capacitor to nullify the effect of the production sample. Alternatively capacitors 1, 5 may be connected in a bridge circuit.
Patent GB-522737-A (GB)
Title: Improvements in and relating to the synchronisation of television receiving apparatus
IPC: H04N5/10
Filed: 1938-12-14
Abstract: 522,737. Television ; thermionic valves. MURPHY RADIO, Ltd., and DAVIES, K. S. Dec. 14, 1938, No. 36462. [Classes 39 (i) and 40 (iii)] A saw-tooth generator for synchronizing television receivers comprises a condenser 1 connected to a charging source through a resistance 2 and shunted by a gasfilled valve 3 having two grids, biassed through a resistance 4 by a potential source at 6, one grid fed with synchronizing pulses directly and the second through a delay device 5 having a delay greater than the duration of a line pulse but shorter than the duration of a frame pulse, so that both grids are active simultaneously only for the frame pulses and only then does the valve act. Specification 491,728 is referred to for the system of controlling circuits by the delayed and direct feeding of pulses of different durations.
Patent GB-802946-A (GB)
Title: Process for the manufacture of 4-amino-isoxazolidone-(3) and derivatives thereof and said derivatives
Filed: 1956-11-29
Abstract: The invention comprises the D and L isomers of 5-alkyl-4-amino-isoxazolidone-(3) derivatives of the formula <FORM:0802946/IV (b)/1> wherein R stands for an alkyl radical, together with the compound DL-allo-5-methyl-4-amino-isoxazolidone-(3), and also a process for the preparation of 4-amino-isoxazolidone-(3) itself and 5-alkyl derivatives thereof by treating a mixture of hydroxylamine and an ester of the general formula <FORM:0802946/IV (b)/2> (wherein R1 is hydrogen or an alkyl radical, R2 is an alkyl radical and X is a halogen atom) with a strong base in the presence of water and, if desired, resolving the resulting oxazolidone into its optical antipodes.  The reaction is suitably carried out in the presence of an alkali-metal hydroxide or a lower trialkylamine as the strong base suitably in aqueous methanol as a solvent.  The 4-amino-isoxazolidone compound may be separated from the reaction mixture by (1) acidifying the reaction mixture to about pH 6 by means of mineral acid such as hydrochloric, making alkaline to phenol phthalein by adding an organic amine, precipitating the halide salt by pouring into a lower alcohol or acetone, separating the alcohol or acetone solution of the amine-salt of the 4-amino-isoxazolidone compound and crystallizing the product by adding acid and cooling; (2) liberating the 4-amino-isoxazolidone compound from its alkali-metal salt by adding acid to the alkaline reaction solution, pouring the solution into an alcohol or acetone to precipitate the 4-amino-isoxazolidone together with the halide salt, treating the precipitate with alcohol or acetone and an organic base to redissolve the 4-amino-isoxazolidone and separating this by addition of acid, preferably glacial acetic acid; (3) when the original reaction is effected in aqueous methanol as a solvent, the 4-amino-isoxazolidone may be isolated by precipitating the inorganic salts by adding an alcohol such as ethanol or a dehydrating agent such as sodium sulphate, filtering and separating the product from the filtrate by adding acid and crystallizing; and (4) when the strong base used in the original reaction is an organic base and the solvent is an aqueous alcohol, crystallizing the 4-amino-isoxazolidone directly from the solution without prior separation of the hydrohalide salts of the organic base, which are alcohol soluble.  The resolution of the products into their optical antipodes may be effected by treatment with either an optically active acid or an optically active base. Examples describe the preparation of 4-amino-isoxazolidone-(3) and its D and L isomers and DL-(threo and allo) - 5 - methyl - 4 - amino - isoxazolidone - (3).  Starting materials.  The a -amino-b -halocarboxylic esters of the formula I used as starting materials are made by treating the corresponding a  - amino - b  - hydroxy - carboxylic esters with a phosphorus pentahalide such as phosphorus pentachloride. Specifications 795,459 and 799,066 are referred to.