baber/WOPTO huggingface dataset:
Patent GB-1187676-A (GB)
Title: Hydrocarbon Conversion Process
Inventor: CARSON DON BURTON
IPC: C10G59/02
Filed: 1967-08-18
Abstract: 1,187,676. Benzene; town gas. UNIVERSAL OIL PRODUCTS CO. 18 Aug., 1967 [19 Aug., 1966], No. 38051/67. Heading C5E. Town gas and a benzene concentrate are formed by a process in which: (1) a hydrocarbon is cracked with steam and the cracking fraction is separated into a hydrogen-rich stream and a carbon dioxide-rich stream; (2) a hydrocarbon containing naphthenic and paraffinic hydrocarbons is reformed in the presence of at least a portion of the hydrogenrich stream produced in (1 to provide a product containing alkyl aromatic hydrocarbons; (3) these alkyl aromatic hydrocarbons are dealkylated to provide (a) a liquid product stream containing benzene and (b) a low purity gas stream containing 40-70% by volume of hydrogen; (4) the low purity gas stream produced in (3) is separated, e.g. cryogenically, into a relatively high purity hydrogen stream, e.g. comprising at least 80% hydrogen, and a stream comprising light paraflinic hydrocarbons; (5) at least a portion of the relatively high purity hydrogen stream produced in (4) is supplied to the reforming step (2); and (6) the stream comprising light paraffinic hydrocarbons separated in (4) is mixed with a proportion of the carbon dioxide rich stream produced in (1) to provide a town gas. In step (1) a naphtha is cracked at 316-982 C. using a nickel catalyst and a mole ratio of steam to carbon of 1-5 ; :1 to 5.0 1 and the carbon monoxide produced is oxidized with an iron-oxide catalyst to carbon dioxide which is removed by absorption in triethanolamine. In step (2) a naphtha boiling at 38-232 C. is reformed at 260-566 C. using a catalyst of 0.05 to 5 wt. per cent of platinum on alumina and a hydrogen to hydrocarbon mole ratio of 0-5 : 1 to 15 : 1. In step (3) the dealkylation is carried out at 538-980 C. using a hydrogen/ hydrocarbon mole ratio of 3 :1 to 25 :1 and may be either thermal or catalytic using as a catalyst 10-15 wt. per cent of chromium oxide on alumina.
Patent GB-876106-A (GB)
Title: An improved nut fastener for use with sandwich-type panels
IPC: F16B5/02
Filed: 1959-11-11
Abstract: 876,106. Screw-sockets &c. ROHE, F. W. Nov. 11, 1959, No. 38265/59. Class 89(1). A screw-socket comprises a cylindrical cage 24 receiving a cylindrical nut body 21 with clearance and provided with heads 25, 26 at opposite ends. Head 25 is circular and head 26 non-circular and formed with at least one radial recess 32 receiving with clearance a projection 23 on body 21. The body can move slightly in the cage which is closed by a plate 28 secured e.g. by brazing or welding. In use, the body is drawn against a shoulder 33 adjacent head 25. The socket is embedded in a mass of synthetic resin 16 in a hole in a cellular panel A.
Patent GB-1482573-A (GB)
Title: Photographic diffusion transfer silver halide products and processes
IPC: G03C8/44
Filed: 1974-09-03
Abstract: 1482573 Photographic diffusion transfer silver halide film unit POLAROID CORP 3 Sept 1974 [4 Sept 1973] 38353/74 Heading G2C A photographic diffusion transfer film unit comprising layers secured together in order comprises a first dimensionally stable transparent layer, a dye image-receiving layer, an opaque layer, a photo-sensitive silver halide layer having associated therewith a diffusion transfer process dye imageforming material, and an aqueous alkaline processing composition permeable diffusion transfer process dye image-forming material impermeable layer, and an aqueous alkaline processing composition capable of being spread as a layer on the side of the dye image-forming material impermeable layer distant from the silver halide layer. The film unit may contain a second dimensionally stable transparent layer on the side of the impermeable layer distant from the silver halide layer and the processing composition may be discharged, e.g. from a rupturable container, between these layers. The processing composition may contain an opacifying agent. The impermeable layer may comprise butyl acrylate/diacetone acrylamide/ styrene/methacrylic acid, 60/30/4/6, optionally mixed with 1-2 wt. per cent polyacrylamide or 10 wt. per cent polyvinyl alcohol, or 2-sulphoethyl methacrylate/ethyl acrylate/methacrylic acid.
Patent GB-349422-A (GB)
Title: Improvements in and relating to stoker construction
IPC: F23K3/04
Filed: 1930-02-28
Abstract: 349,422. Crushing- apparatus. HANNA, W. T., Brotherton Road, Cincinnati, Ohio, U.S.A. Feb. 28, 1930, No. 38385. Convention date, April 5, 1929. Divided on 342,926, [Group XII]. [Class 59.] A fuel crusher for use in mechanical stokers having a rotatable conveyer such as a screw 18 in a conduit 19 comprises a plurality of contiguous flat planes 37 .. 40 disposed in the conduit at varying angles and converging towards the conveyer so as to encompass it. The planes have projecting teeth 41.
Patent GB-918458-A (GB)
Title: Neutralizing circuits
IPC: H03F1/16
Filed: 1961-10-27
Abstract: 918,458. Valve amplifying circuits. STANDARD KOLLSMAN INDUSTRIES Inc. Oct. 27, 1961 [Jan. 26, 1961], No. 38590/61. Class 40 (6). The invention relates to a neutralized triode amplifier, in which the anode circuit comprises an inductance L tuned by series-connected capacitors C 1 , C 2 , of which C 1  comprises inherent circuit and component capacities. The join of capacitors C 1 , C 2  is earthed and the arrangement neutralized by means of a capacitor C N  connected between the end of the inductance L remote from the anode and the grid of the valve. If such an arrangement is used over a wide tuning range at high frequencies, e.g. the television bands, neutralizing fails to hold over the band due to the inductance of capacitor C 2  and its leads, this capacitor being made considerably larger than capacitor C 1 . According to the invention the balance of the circuit is maintained over the tuning range by connecting an inductance L N  of appropriate value in series with the neutralizing capacitor C N . The valve may be of the " guided grid " type, as disclosed in Specification 917,686. Specification 871,647 also is referred to.
Patent GB-849580-A (GB)
Title: Improvements in and relating to combined central heating and water-heating installations
IPC: F24H1/48
Filed: 1958-12-01
Abstract: 849,580. Hot-water boilers. BAIER, L., BAIER, W., BAIER, W., BAIER, W., and SCHLUMPRECHT, E., [trading as BAIER KOMM.-GES., W.]. Dec. 1, 1958 [Dec. 20, 1957], No. 38719/58. Class 64(1)  Water for a central heating system is heated in two interconnected jackets 1, 2 by gases from a combustion chamber 3 below the inner jacket 2 while a separate draw-off supply is heated in a single or multiple coil 8 arranged, with the thermal element 15 of a thermostat 14, in a chamber 9 interconnecting the jackets 1, 2 at the front of the boiler. There is an oil burner 10 or a combustion chamber door at the front of the boiler. The flue space surrounded by the jacket 2 may be closed at the bottom as shown, except for a small opening, below the flue outlet 7.
Patent GB-1478649-A (GB)
Title: Paper making machines
IPC: D21G9/00
Filed: 1974-09-06
Abstract: 1478649 Conical mills ESCHER WYSS GmbH 6 Sept 1974 [6 Sept 1973] 39049/74 Heading B2A [Also in Divisions D2, F4 and G3] To control the freeness of stock fed to a paper-making machine in dependence on a signal 30 derived from a pressure sensor 31 in the forming zone, the signal is compared with a reference value by comparator 28 whose output is used to adjust the grinding action of a refiner 22. As shown the refiner is a conical refiner driven by a variable-speed motor 26. The grinding action can be adjusted by varying the speed of the rotor 24 (Fig. 1) or by varying the gap S between the rotor 24 and stator 23 (Fig. 2) by moving the rotor 24 axially. The control circuit shown in Fig. 2 also includes a power consumption meter 50.
Patent GB-1441503-A (GB)
Title: Method for crystallization of unsaturated polyesters
IPC: C08J3/00
Filed: 1974-09-06
Abstract: 1441503 Crystallizing unsaturated polyesters KAO SOAP CO Ltd 6 Sept 1974 [18 Sept 1973] 39064/74 Heading C3R A method for crystallizing an unsaturated polyester resin comprises adding to an unsaturated polyester resin at a temperature 1 to 5‹C. below the melting point of the resin a crystal seed of the same resin, agitating and ageing the resin at a temperature 10‹ to 15‹ C. below the melting point of the resin for 30 minutes to 3 hours, and allowing the thus aged resin to stand at a temperature 30‹ to 40‹ C. below the melting point of the resin to give the crystallized resin. Specified unsaturated polyesters are those derived from fumaric acid, optionally with sucoinic acid, and ethylene glycol.
Patent GB-1449644-A (GB)
Title: Process for manufacturing porous polymer film
IPC: D01F1/10
Filed: 1973-08-17
Abstract: 1449644 Porous films MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Aug 1973 [18 Aug 1972 12 Oct 1972] 39081/73 Heading B5B [Also in Division C3] A porous film is prepared by forming a film from a blend of 100 parts by weight of a first polymer composition I and from 30 to 250 parts by weight of a second polymer composition II, stretching the film to increase its dimension in one direction by at least 1À5 times and to increase its surface area by from 2 to 20 times and then treating the stretched film with a liquid or vaporous solvent to swell polymer composition I but to elute the composition II from the film, so leaving a porous film. The size of the pores in the final film may be adjusted by using a copolymer as either I or II and altering the ratio between the components of the copolymer. Specified polymers I are polyethylene, polypropylene, polystyrene, polyvinyl chloride, polycarbonate, polysulphone, polyamide and an ethylene-vinyl acetate copolymer. Exemplified polymers II are polymethyl methacrylate, polystyrene, ethylene-vinyl acetate copolymer and polyethylene oxide. Specified copolymers for adjusting pore size are, ethylene-vinyl acetate, ethylene-propylene, propylene-vinyl chloride, styrene-acrylonitrile, styrene-butadiene, styrene-methyl acrylate and vinyl acetate-ethyl acrylate copolymers.
Patent GB-892450-A (GB)
Title: Improvements in or relating to pharmaceutical compositions comprising ethylthiocarbonyl compounds
Inventor: SISSON JOHN
IPC: A61K9/02
Filed: 1959-11-18
Abstract: Solid, semi-solid and fluid pharmaceutical compositions for topical and rectal administration comprise at least one compound of general formula R-COSEr wherein R stands for an ethylthio radical or for a phenyl radical which may be optionally substituted by an ethylthio-carbonyl radical in admixture with one or more pharmaceutically acceptable, non-toxic, thickening agents, e.g. beeswax (preferred), solid polyoxyethylene glycol (1540, 4000 or 6000), microcrystalline wax, hydrogenated castor oil, spermacetic or a long chain aliphatic alcohol as the sole excipient or base. Specifications 746,051,758,464 and 808,105 are referred to.
Patent GB-913927-A (GB)
Title: Improvements in or relating to feed mechanisms
Inventor: RUNCIMAN ROBERT DAVIDSON
IPC: H05K13/02
Filed: 1958-12-04
Abstract: 913,927. Attaching pronged fasteners. GENERAL ELECTRIC CO. Ltd. Nov. 24, 1959 [Nov. 4, 1958], No. 39140/58. Class 89 (3). [Also in Groups XXII and XXX] Pronged valve holders 10 are discharged one by one from the bottom of magazine 30 so as to be affixed on a printed circuit 12. The discharge is effected by ram 112 reciprocated by air cylinder 106, via link 108, link 88 pivoted at 90, pawl 98 and ratchet teeth 124 formed on ram 112, the ram serving to force out the bottom valve holder against the pressure of spring- pressed balls 152. The bottom of magazine 30 is carried by movable plate 132 which is spring-influenced at 140 and is provided with rods 134 which have bushes 136 and flanges 138 which co-operate with fixed bracket 130 to form limit stops. The top of magazine 30 is carried by bush 118 of slide block 44, the slide block being connected by rod 78 to a pair of spring-influenced slidable members 48, 60. Operation.-Air cylinder 106 operates to cause block 44 to descend. This causes ram 112 together with magazine 30, to descend. The movement of magazine 30 causes plate 132 to descend till plate 132 reaches its limit and comes to rest, allowing the continued downward movement of ram 112 to eject the bottom holder. The ram then moves upward, and plate 132, magazine 30 and block 44 move upwards to their original positions. Specification 801,232 is referred to.
Patent GB-1350356-A (GB)
Title: Method of automatically fine adjusting digitally indicating bal ances and a balance for carrying out the method
IPC: G01G23/16
Filed: 1972-08-23
Abstract: 1350356 Semi-automatic zero adjustment WIRTH GALLO & CO 23 Aug 1972 [24 April 1972] 39209/72 Heading G4H A method of automatically fine adjusting the reading of a balance having means for calculating the weight in measuring units and means for displaying the weight in units equal to 10 measuring units comprises determining whether the unloaded balance indicated reading is zero; if so subtracting five measuring units from the measured value, storing the result and subtracting this result from the measured values of weighings before display. A manual coarse adjustment is provided to reduce the unloaded balance indicated reading to zero if necessary. As described, the balance has two vibrating strings and the difference between the vibration frequencies is converted at 14 to a weight measured in units m. The weight is displayed at 16 in units d=10m. The output of 16 is applied to standstill indicator 21 which checks that the reading is steady and zero range detector which checks that the weight is less than 10m, i.e. less than 1d and will give a zero output reading. When both conditions are satisfied, and gate 22 is enabled, gate 23 is also enabled and the output of 14 is fed to unit 25 where 5m is subtracted from it, the resulting value being stored at 26. This value is deducted at 27 from the output of 14 during weighings before passing the reading to display 16. This zero condition is automatically updated each time the balance is unloaded. If the unloaded balance reading after correction is not zero, a coarse manual adjustment is used to return it to zero in stages equal to 5m.
Patent GB-1121076-A (GB)
Title: Process for preparing 3-aminoisoxazole derivatives
IPC: C07D261/14
Filed: 1965-09-14
Abstract: 3-Aminoisoxazole derivatives of formula <FORM:1121076/C2/1> wherein R represents hydrogen, C1- 5 alkyl, or a phenyl group which may be substituted with nitro, amino, C1- 5 alkyl, or C1- 3 alkoxy groups, or halogen atoms, are obtained by reacting a compound of formula R-C­C-CN with hydroxylamine in the presence of an alkali metal hydroxide, the alkali metal hydroxide being used in an amount sufficient to provide an excess of free hydroxide per mole of free hydroxylamine in the reaction mixture.
Patent GB-1510380-A (GB)
Title: Refractometric densitometer
IPC: G01N21/43
Filed: 1975-09-25
Abstract: 1510380 Refractometric densitometer TOYO SODA Mfg CO Ltd 25 Sept 1975 [25 March 1975] 39386/75 Heading G2J [Also in Division G1] This comprises a glass element 12 with, on opposite sides gaskets 14, 14' having channels 14b, 14b' which are for the passage of sample material over the surface of element 12 and have inlets 21, 25 and outlets 22, 26 in first and second members 16, 16' and means 29 connecting 22 and 25 and means for directing light to element 12 to enable multiple reflections at said surfaces. The gaskets have reference channels 14a, 14a' with inlets 19, 23 and outlets 20, 24. The reference and sample materials are solvent and solution respectively. Light from halogen source 1 and mono-chromatic filter 2 is directed as a parallel beam to mirror 6, rotatable so that the reflected light made into two beams by mask 9 reaches the surface of element 12 at (A), Fig. 1 (not shown) via optically bonded prism 10 at the critical angle for the solvent. Prism 13 also optically bonded to element 12 has curvature radiused about (13) a position of the vertical image of (A). Glass elements 11, 11' separate the gaskets 14, 14' from members 16, 16'. The two beams are multiply reflected in element 12 along channels 14a', 14a', and 14b, 14b' respectively, and after emerging reach parts (27a) and (27b), Fig. 5 (not shown) of detector 27 from  which the difference of electrical output given the solution strength, since for the solution the angle of incidence in element 12 is subcritical. Members 16, 16' are of metal.
Patent GB-1323335-A (GB)
Title: Epoxidising unsaturated compounds
IPC: C07D303/16
Filed: 1970-08-17
Abstract: 1323335 Epoxidation process DEUTSCHE GOLDUND SILBER-SCHEIDENASTALT 17 Aug 1970 [21 Aug 1969] 39473/70 Heading C2C Olefinically unsaturated compounds are epoxidised by dewatering an aqueous solution of a percarboxylic acid containing at least two carbon atoms by extraction and/or azeotropic distillation with the compound to be epoxidised and keeping the extract obtained at 30-100 C. until the required conversion to the epoxide has been obtained. The pressure prevailing in the distillation column during the azeotropic distillation may be adjusted in such a way as to give a sump temperature of 20 to 80 C. The molarratio of the olefinically unsaturated compound to percarboxylic acid is between 1À2 : 1 and 25 : 1. Peracetic acid is preferably used and suitable olefinically unsaturated compounds include diisobutylene, styrene, allyl acetate, allyl chloride, diallyl ether, 2-methallyl ether and 1-buten-3-ol.
Patent GB-1520916-A (GB)
Title: Printer head
IPC: B41J9/38
Filed: 1975-09-26
Abstract: 1520916 Selective printing INTERNATIONAL STANDARD ELECTRIC CORP 26 Sept 1975 [27 Sept 1974] 39586/75 Heading B6F A print head includes at least one hammer mechanism having a hammer 41 supported only by a blade spring 45 and movable in opposite directions from a central rest position (in which the spring is not flexed) under the influence of electromagnets 3, 3<SP>1</SP>. In operation the electromagnet 3<SP>1</SP> is initially energized so that the hammer 41 is retracted and spring 45 flexed, even when electromagnet 3 is energized subsequently. If then the current in electromagnet 3<SP>1</SP> is interrupted briefly the hammer 41 moves quickly upwards (as viewed) to effect printing. Subsequent de-energization of electromagnet 3 causes the hammer to retract. A print member 44 on the hammer may be a bar code element.
Patent GB-397075-A (GB)
Abstract: 397,075. Electrostatic meters. HARTMANN & BRAUN AKT.-GES., 97, Konigstrasse, Frankfort-on-Main, Germany. April 20, 1933, No. 11613. Convention date, June 7, 1932. [Class 37.] The movement of an electrostatic voltmeter is provided with a feeler device located beneath the instrument for indicating the departure of the moving system from a position due to a predetermined charge. The shaft 3 carrying a needle 10 has secured to it a cam 4 co-operating with feeler levers 7 reciprocated by continuously driven cams 6. The blocking of either lever gives an indication of the sign of the charge variation. In a modification, the cam 4 is loosely associated with the shaft 3 to prevent disturbance to the voltmeter system.
Patent GB-1004799-A (GB)
Title: Improvements in or relating to method and apparatus for spraying fibres and resinousmaterial
IPC: B29C41/36
Filed: 1963-10-09
Abstract: 1,004,799. Spray moulding. DE VILBISS CO. Oct. 9, 1963 [Oct. 16, 1962], No. 39719/63. Heading B5A. [Also in Division B2] A method of spraying a fibre-resin mixture on to a mould or other working surface comprises conveying chaffed fibres, e.g. glass fibres, through a conduit by a stream of pressurized air, forcing the fibres to the centre of the tube, dissipating the excess air to slow the fibre stream, and spraying the stream along with a stream of resin on to the working surface. In the embodiment shown, continuous strands 11 are cut into short lengths by a rotating cutter 16, and blown through a conduit 26, 24 by a blower 15. A conical collar 35 having a rearwardly facing annular opening 38 is connected by fins 36 between the end nipple 37 of the conduit 24 and a nozzle member 39. The stream of fibres is forced to the centre of the conduit by suitable members, e.g. fingers 40, then passes through the collar, the excess air being dissipated rearwardly through opening 38, and is finally discharged through nozzle 39 at a reduced velocity. Fingers 41 prevent the formation of any fibrous clumps. The issuing stream is fanned, by air from openings 42, into a flat-beam and is mixed with a similarly shaped stream of resin from a spray gun 50 located adjacent the nozzle as in Fig. 1, the mixed streams being directed on to the working surface. Specifications 796,684 and 910,510 are referred to.
Patent GB-1427213-A (GB)
Title: Joint construction
IPC: E06B3/96
Filed: 1973-08-23
Abstract: 1427213 Structural joints PERRY BROS (HALL GREEN) Ltd 12 March 1974 [23 Aug 1973] 40002/73 Heading F2M A joint for a frame, e.g. a door frame, comprises elongate frame members 10, 11 at least one of which is of hollow section and has on one longitudinal edge a re-entrant formation providing a groove and on either side of the groove internal channels in which are seated the ends of a U-section clamp plate 12, one or more screws 23 being passed through holes in the clamp plate and engaged in internally ribbed sockets in end of the other frame member, so that the longitudinal edge and end of the respective frame members are urged into abutment without any tendency to distort the groove formation. Holes 26 are provided in member 10 for access to the screws 23. Alternatively, the base of the groove formation may be locally slotted (Fig. 1, not shown).
Patent GB-1219260-A (GB)
Title: A copying machine tool
IPC: B23Q35/20
Filed: 1969-08-12
Abstract: 1,219,260. Copy-milling. FRIEDRICH DECKEL PRAZISIONS MECHANIK & MASCHINENBAU. 12 Aug., 1969 [19 Aug., 1968], No. 40366/69. Heading B3K.  In a pantograph-type copy milling machine in which the tracer 22 is axially slidable in a bearing 26 carried by the pantograph 16, vertical movements of the tracer are transmitted in a reduced ratio to the bearing and thus through the pantograph 16 to a tool 20 by an attachment comprising a lever 38 pivoted to the tracer at one end and constrained to move in a plane normal to the tracer axis at its other end, and a cantilever arm 28 swivellably attached to the bearing 26 and having a bearing member 30 arranged to contact one of several pins 40 on the lever 38. The bearing member 30 is adjustable along the cantilever arm against a scale 36 to vary the transmission ratio from the tracer to the bearing 26. In an alternative arrangement (Fig. 3, not shown) the lever 38 bears against a cam 54 which provides a transmission ratio which varies with the depth at which the tracer point is operating.
Patent GB-1022648-A (GB)
Title: A process for making a series of ª‰-phenyl-propiophenone derivatives, substituted in the 2- and 4-positions and derivatives thereby obtained
IPC: C07D295/08
Filed: 1962-10-26
Abstract: Compounds of the general formulae <FORM:1022648/C2/1> <FORM:1022648/C2/2> <FORM:1022648/C2/3> and their hydrochlorides are prepared by (a) reacting the parent phenol or an alkali metal salt thereof with an appropriate aminoalkyl halide or a hydrohalide thereof, or (b) reacting a corresponding haloalkyl ether with the appropriate secondary amine, optionally followed in either case by conversion to the hydrochloride if not obtained directly.  Reference has been directed by the Comptroller to Specification 730,922.