baber/WOPTO huggingface dataset:
Patent GB-423174-A (GB)
Title: Improvements relating to the construction of tanks and like enclosures
IPC: H01H33/55
Filed: 1933-07-24
Abstract: 423,174. Vacuum chambers. JUHLIN, G. A., Redscar, Moss Lane, Timperley, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 24, 1933, No. 20824. [Class 8 (ii)] [See also Groups XXIX and XXXVII] A tank subjected to excess external pressure, e.g. for vacuum apparatus, of the type having a body portion the outline of whose transverse cross - section is substantially oval in form, is provided with corrugations 2 extending peripherally round the tank transversely of the longitudinal axis thereof but which are discontinued at locations 6 one in each quadrant of, and respectively intermediate adjacent ends of the major and minor axes of, the oval form, for reinforcing the tank in the longitudinal direction. The tank wall may be constructed from two or four curved sheets, welded at 6, at which points reinforcing stays may be provided; the tank is completed by a welded base 7 and welded rim 8.
Patent GB-686824-A (GB)
Title: Improvements in and relating to electrode structures for gaseous electric discharge devices
IPC: H01J17/06
Filed: 1948-08-06
Abstract: 686,824. Discharge lamps; electrode materials. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1948 [Aug. 6, 1947], No. 20837/48. Class 39(i) [Also in Group II] An electrode structure for a gaseous electric discharge device, particularly an are discharge flash lamp, comprises an arc-supporting, electron emissive tip portion consisting of an alloy comprising substantially a refractory metal and an alkaline earth metal supported by a, body portion made of a different metal to provide a relatively large heat storage and radiant capacity effect. In the construction shown in Figs. 1 and 2 the electrodes 5 each comprise a cylindrical body portion 7 of cold rolled steel one inch long and #'' diameter and a tip portion 6 composed of an alloy comprising preferably a tungstennickel-barium alloy having a composition of about 89 per cent tungsten, 10 per cent nickel and 1 per cent barium. The tip portion 6 is brazed into a recess 11 in the body portion 7 by a wire ring 13 of manganese-nickel, alloy containing between 12 to 40 per cent manganese as disclosed in Specification 527,409, [Group II]. Conical portions of the tip 6 and body 7 form a continuously tapered face, preferably a 90 degrees cone. The body 7 has an axially extending cylindrical appendage 8 seated within the bore 9 of the tubular inner end portion of the cold rolled steel lead-in prong 3 and preferably brazed or spotwelded thereto. The prong 3 is brazed to a thin metal ferrule or cup 4 of nickel-iron or iron-nickel -cobalt alloy, the rim of which is fused into the end of the neck 2. The electrodes 5 have a gap of 3 to 4 mm. between them. The bulb 1 contains a filling of argon, krypton, xenon or mixtures thereof with hydrogen. A preferred filling is krypton at a pressure of 1500 mm. of mercury in a bulb 1“" diameter and about 3 inches long.
Patent GB-1092697-A (GB)
Title: Catalytic process for the preparation of vicinal episulfides
IPC: C07D331/02
Filed: 1965-05-17
Abstract: Alkylene sulphide monomers are prepared by heating an alkylene oxide in the vapour phase at 100-500 DEG  C. with at least one sulphurdonating compound, containing bivalent sulphur and existing in the vapour state under the reaction conditions, in contact with a catalyst which is at least one alkali metal or alkaline earth metal halide or oxide, or an oxide of Ni, Al, B, Si or Fe, or an alkoxide M(OR)n, where R is a C1- 4 alkyl group, M is Li, Na, K, Rb, Cs, Al, Be, Mg, Ca or Sr and n is the valency of M. The preferred catalyst is sodium fluoride in pellet form.  The sulphur-donating compound may be carbonyl sulphide, carbon disulphide, hydrogen sulphide or another alkylene sulphide having a different number of carbon atoms from the required product.  Examples describe the preparation of ethylene sulphide and propylene sulphide using a variety of catalysts. Other specified products are 1,2- and 2,3-butylene sulphide, isobutylene sulphide, styrene sulphide and cyclohexene sulphide.
Patent GB-299923-A (GB)
Title: Improvements in and connected with screw propellers and the like
IPC: C25D7/00
Filed: 1927-08-08
Abstract: 299,923. Stone & Co., Ltd., J., Pike, F. J., and Neville, H. Aug. 8, 1927. Screw propellers.-A screw propeller or blade is electrolytically coated with metallic chromium. When a lead anode is employed its area is half that of the cathode surface of the propeller. For coating the propeller a local bath is formed around it and made fluid - tight. When coating one blade at a time the blade a<1> is fitted into a bath formed of flexible sheet metal c which is bent to fit closely aiound the blade and forms a side wall of a bath, the bottom of which is constituted by the face of the blade to be coated. The sheet c is held by a frame member of wood, two long portions d and cross portion e being bolted together, wood packing pieces g, g<1> being disposed at the edges. The anode is comprised of a grid formed of a flat lead strip or interlaced rods, the ends of the rods being connected to suitable set screws, the total area of this grid being half that of the blade. The electrolyte is introduced into the bath to submerge the blade, chromium acid or a suitable chromium salt solution being employed. Pickling, washing or other treatment may be carried out in the local bath and cooling of the bath may be provided to prevent over-heating. Other metals such as steel may be used in place of lead for the anode grid.
Patent GB-1143492-A (GB)
Title: Chromatographic devices
Inventor: HECKER JOHN CHALMERS
IPC: G01N30/90
Filed: 1967-05-05
Abstract: 1,143,492. Chromatography apparatus. EASTMAN KODAK CO. 5 May, 1967 [6 May, 1966], No. 20913/67. Heading B1X. A chromotographic device comprises a tray 11 having in its bottom surface an elongated well 17 for holding a supply of eluent and receiving one end of a chromatographic element 21, and a cover 27 adapted to fit on to the rim 15 of the tray, at least one of cover 27 and the bottom surface of the tray having spaced protuberances, for example ridges or pimples 29. In the embodiment shown, coated thin layer chromatography sheet 21 lies with its coated surface facing downwardly. Slot 23 may be provided in well 17 to receive the end of sheet 21. Apparatus for use at angles to the horizontal (Fig. 3 not shown) is provided with a lip (33) which projects across the top of well 17 far enough to retain the eluent when the tray is vertical. In another embodiment, well 17 is located centrally in tray 11 and two sheets may be developed, each with one end in the well.
Patent GB-226261-A (GB)
Title: Improvements in or relating to submarine mines
IPC: F42B22/16
Filed: 1923-08-17
Abstract: 226,261. Vickers, Ltd., and Elia, G. E. Aug. 17,1923. Mines, marine.-The plummet line of an automatically anchored submarine mine is adapted to be paid out from a drum checked by a brake and to be separated from said drum when completelv unwound. As shown, the line 2, which is connected at one end to the plummet (not shown), is attached at its other end to a ball 17, and is wound round a drum 1, the speed of rotation of which is checked by a gear pump 7 regulated by a spring-loaded valve 14. The line 2 passes through a sleeve 22 secured by a shackle 13 to one end of a line 20 attached at its other end to the pawling gear controlling the usual mooring cable drum (not shown). When the line 2 is completely unwound from the drum, the ball 17 slips out and jams into the sleeve 22, and the jerk thereon shears pins 23 and draws the shackle 19 away from the drum casing; the line 20 then forms a continuation of the plummet line, which is now free, fully extended, and in control of the pawling gear. Specification 201,197 is referred to.
Patent GB-1519254-A (GB)
Title: Non-linearty product generator and non-linearity precorrector
IPC: H04N5/38
Filed: 1976-05-20
Abstract: 1519254 Non-linear circuits LGT LABORATOIRE GENERAL DES TELECOMMUNICATIONS 20 May 1976 [23 May 1975] 20962/76 Heading H4R A non-linear circuit, e.g. for predistorting a television signal before transmission, comprises balanced (hybrid) couplers 15, 16 with conjugate parts 4, 5 and 9, 10 interconnected by attenuators 8, 18 and amplifiers 7, 17 as shown, so that an input signal at 1 arrives at 9, 10 with non-linear products at 10 (as a result of higher level signals appearing at attenuator 18 than at attenuator 8) which emerge at difference output 14 whilst identical signal components at 9, 10 dissipate in balance impedance 13. The circuit appears in one of a pair of channels linking two further hybrids and including phase aid gain adjustment, possibly via a carrier.
Patent GB-1037391-A (GB)
Title: Vacuum-enclosed rotatable furnace
IPC: E04F13/04
Filed: 1963-05-27
Abstract: 1,037,391. Vacuum-enclosed rotatable furnaces. ALLMANNA SVENSKA ELEKTRISKA A.B. May 27, 1963 [June 1, 1962], No. 21035/63. Heading F4B. A rotatable furnace for the manufacture and/ or treatment of steel or other metal or metal alloy consisting of a hollow furnace body 11, Fig. 2 (not shown) of circular cross-section, for example as described in Specification 1,016,158, mounted on roller rings 14 rolling on wheels 15 situated in a support 13 tiltable through 180 degrees by motors 21 and toothed segments 22, is enclosed in a vacuum tight vessel 12 formed by the support 13 and detachable sections. The furnace body is rotated by a D.C. motor 19 which drives wheels 15 via shafts 18, 17 and gears 16, the shaft 18 passing through the stub axle 20 in a vacuum tight manner. The watercooled conduit 28, Fig. 1 (not shown) is used to exhaust the chamber 12, the forward part 25 of which is lined with fire brick and shielded by partition 26 against radiation and gases running backwards from the part 25.
Patent GB-1530407-A (GB)
Title: Ultrasonic cleaning apparatus
IPC: B08B11/00
Filed: 1976-05-21
Abstract: 1530407 Ultrasonic cleaning apparatus J W MCCORD 21 May 1976 [2 June 1975] 21056/76 Heading F2N An ultrasonic cleaning apparatus comprises a tank 1; an ultrasonic transducer housing 5, having a pair of opposed openings 7 therein, mounted in the tank; and a vibrating member 11, disposed within the housing, having at least three side walls each one having at least one ultrasonic transducer 13 attached to its outer surface, the vibrating member 11 having opposed open ends in alignment with the openings 7 in the housing 5 and the spacing between the open ends defining a cleaning zone. The vibrating member 11 (e.g. of stainless steel) may be mounted vertically or horizontally and may be fixedly attached to opposed ends of the transducer housing 5. The ultrasonic transducers 13 may be of the electrostrictive or magnetostrictive types. Electrical input lines 19 may be contained in a tubing attached to the housing 5 by a compression fitting 21 welded thereto. The tank may be filled with a cleaning solution 3 such as chlorinated hydrocarbon.
Patent GB-785452-A (GB)
Title: Improvements relating to sealed metal rectifier assemblies and methods of sealing such assemblies
IPC: H01L23/04
Filed: 1954-07-20
Abstract: 785,452. Semi-conductor devices. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and LOCKETT, L. J. June 14, 1955 [July 20, 1954], No. 21089/54. Class 37. An inner container enclosing one or more dry plate rectifiers fits closely into an outer casing and the assembly is sealed with a sealing compound. The assembly steps for Fig. 1 are as follows: (i) the inner sub-assembly is first formed comprising a square box 1 containing two rectifiers 6 and spring terminal strips 2, 7 clipped over the sides of box 1; (ii) a potting compound (e.g. a thermo-setting resin) is placed in liquid form in the outer square casing 3; (iii) the inner sub-assembly is then inserted and pressed home to the bottom of casing 3 so that the compound is forced around the rectifiers 6 and terminal tags 2, 7 and between the walls of box 1 and casing 3 whilst air and surplus compound is exuded through vent hole 8 in box 1; (iv) finally the whole assembly is heat-treated to set the compound. In a modification, Fig. 4, the outer casing 3 is longer than the arms of a channel-shaped inner housing 12 and recess 17 thus formed receives sealing compound 13 and pressure on a cover-plate 9 forces the compound 13 between the walls of casing 3 and housing 12. In Fig. 1, two rectifiers 6 are maintained under pressure by the domed S portion of terminal strip 2; Fig. 4 comprises a single rectifier and two terminal strips 2. The domed surface 5 may be gold-plated.
Patent GB-1431484-A (GB)
Title: Electrolytic cell for surface treatment of a strip formed article
IPC: C25D7/06
Filed: 1973-05-03
Abstract: 1431484 Electrolytic treatment of strip NORDISK ALUMINIUMINDUSTRI AS 3 May 1973 [5 May 1972] 21113/73 Heading C7B An electrolytic cell for the surface treatment of metallic strip comprises a tank 1 for containing electrolyte and at least one electrode 3 extending across the tank. Each electrode is provided with an elongated passage through which the strip 7 advances during treatment. Projections 4 at each end of the electrode extend outwardly from the tank for electrical connection to conductors 6. Slots 8 and 9 in the electrode facilitate introduction of the strip into the apparatus. Support 10 protruding from the bottom of the tank prevents the strip contacting the electrode in the case of breakage.
Patent GB-964016-A (GB)
Title: Motion converting means
IPC: F16H21/36
Filed: 1961-06-12
Abstract: 964,016. Driving gear. J. P. TREEN. Dec. 2, 1963, No. 21189/61. Heading FIB. [Also in Division F2] Means for converting reciprocating motion into rotary motion, and vice versa, comprises two hollow pistons 1, 2 connected by pairs of diametrically opposed universal joints 9, 10 to crank-pins 15, 16, 17, 18 on crank-discs 3, 4, 5, 6 which are geared together. Each piston comprises skirt portions 11 secured to a body portion by bolts 13 to form apertures 8 in which the universal joints are located, trunnion portions 10 bearing in holes 12 in the piston walls. The pistons have cutaway portions which allow them to nest together.
Patent GB-276010-A (GB)
Title: Process for the manufacture of thymol, its isomers or homologues and their hydrogenation products
IPC: C07C37/52
Filed: 1927-08-11
Abstract: 276,010. Chemische Fabrik Auf Actien, vorm. E. Schering. Aug. 16, 1926, [Convention date]. Phenols and metallic compounds thereof; cyclohexanols.-Thymol, its isomers or homologues, and their hexahydro compounds are prepared by catalytic treatment with hydrogen of the condensation products of m- or p-cresol and aliphatic ketones obtained by the process described in Specification 273,684, until 4 or 16 atomic proportions of hydrogen are taken up. Another catalyst comprising a metal phenolate or a metal compound, e.g. an oxide, which will form a phenolate, is preferably added to the hydrogenation catalyst employed in order to reduce the decomposition temperature; the additional catalyst may, for example, be a metal compound of the unsaturated phenol formed by thermal decomposition of the starting material (see Specification 273,686), and prepared by dissolving the metal in the unsaturated phenol. The hydrogen may be employed under pressure. According to the examples (1) the condensation product of mcresol and acetone yields thymol and then stereoisomeric menthols in the presence of nickel and aluminium-3-methyl-6-isopropylens-phenolate, (2) the condensation product of p-cresol and acetone gives 4-methyl-6-isopropylphenol and then a mixture of stereoisomeric 4-methyl-6-isopropylcyclohexanols, using nickel mixed with aluminium-4- methyl-6-isopropylenephenolate as catalyst. Specification 273,685 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes the use of condensation products of alkylated phenols and ketones as starting materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-872153-A (GB)
Title: Means for scraping the edges of light workpieces and holding them in non-slipping engagement with an endless conveying member
Inventor: PALMER JAMES MORRIS
IPC: B28B11/08
Filed: 1958-07-03
Abstract: 872,153. Endless conveyers. BRITISH CERAMIC RESEARCH ASSOCIATION. Aug. 10, 1959 [July 3, 1958], No. 21271/58. Class 78 (1). [Also in Group XXIII] A pair of endless wires 16 carry tiles 24 through glazing apparatus (not shown) and then past a series of edge scrapers 26, 28, the tiles being held in contact with the wires while passing the scrapers by either suction mouths disposed below the path of the tiles or mouths above the path of the tiles from which air under pressure is directed downwardly on to the tiles, or by a combination of the two. Each mouth 20 is covered by a plate 22 having perforations 23. The wires 16 are guided in parallel paths in a plane such as to maintain the tiles just clear of the plates 22 by pulleys 15. Scrapers 26 are flexible blades held in clamps 27. The scrapers 28 are rigid members mounted for transverse sliding movement and urged towards the tiles by springs 30 giving sufficient resilience to the scrapers to enable them to negotiate spacing nibs 24a on the tiles.
Patent GB-1299114-A (GB)
Title: Printing ink binders containing catalysts
Inventor: ROSENKRANZ HANS JURGEN
IPC: C09D11/101
Filed: 1970-05-04
Abstract: 1299114 Printing inks BAYER AG 4 May 1970 [3 May 1969] 21273/70 Heading C4A [Also in Division C3] Printing ink binders comprise (i) 5-95% by wt. of a conjugated drying oil, (ii) 0-90% of one or more air-drying alkyd resins, (iii) 0-30% of a hard resin and (iv) 0À5-10% of one or more mono- or poly-α-halogenoketones or the corresponding vinylogous or phenylegous compounds as drying catalyst. Inks comprise the above binders and one or more organic or inorganic pigments, and are curable by U.V. radiation. In examples, varnish 1 comprises 4 p.b.w. wood oil and 1 p.b.w. maleate resin boiled under N 2 ; varnish 2, 5 p.b.w. of a long oil, isocyanatemodified, alkyd resin based on safflower oil and 1 p.b.w. wood oil; varnish 3, 45 p.b.w. wood oil, 19 p.b.w. maleate resin, 100 p.b.w. of a long oil fatty acid alkyd resin and 180 p.b.w. isocyanatemodified long oil safflower alkyd resin, and the catalysts added are: phenacyl chloride, #-#-#- trichloroacetophenone, dichlor - α - indanone, desyl dichloride, 2,2,3,4,4 - pentachlor - 1 - oxonaphthalenetetrahydride, 1,1,3 - trichlor - 2- oxo - naphthalenedihydride, p - benzoylbenzal chloride and bromide, p-benzoylbenzotrichloride, trichloroethylidene - acetophenone, 4,4<SP>1</SP>- bischloromethylbenzophenone, 4,4<SP>1</SP> - bisdichloromethylbenzophenene and 4,4<SP>1</SP> - bisdibromomethylbenzophenone.
Patent GB-1026336-A (GB)
Title: Fluorinated hydrocarbon compositions
IPC: C09K5/02
Filed: 1964-05-22
Abstract: A low-boiling composition suitable for use as a refregerant consists of difluoromethane and monochloropentafluoroethane, and contains from 13 to 65 mol per cent of the latter.  These compositions have boiling points in the region of -57 DEG  C. \sB about 0.25 DEG  C.  The compositions of Specification 1,026,335 which contain from 13 to 28% of the ethane derivative are disclaimed.
Patent GB-997807-A (GB)
Title: Centerless grinding machine
IPC: B24B5/35
Filed: 1964-05-22
Abstract: 997,807. Grinding. CINCINNATI MILLING MACHINE CO. May 22, 1964 [Oct. 8, 1963], No. 21353/64. Heading B3D. [Also in Division B8] A centreless grinding machine having a grinding throat for grinding a long flexible cord, e.g. catgut for musical instrument strings or surgical sutures and ligatures, comprises a workpiece driver having a body with a straight passage extending therethrough in alignment with the grinding throat for passage of the cord therethrough, said body having a helical passage connectable to a source of fluid under pressure and terminating in the straight passage to create a vortex therein for rotation of the cord. A grinding wheel 13 is carried by a wheelhead 11 mounted on a base 10. A regulating wheel 19 is carried by a housing 16 angularly adjustable about pivot 17 on a slide 14 adjustable on the base 10. A support 23 mounted on slide 14 carries closely-spaced blades 24, 25, one above the other, which extend between the wheels 13, 19 to guide the workpiece 21 therebetween through the grinding throat. Pieces of catgut stored in a trough 26 are fed manually to a pneumatic feeder 27 having a bore 27a. A guide member 27b having an orifice 27c is received in the upstream end of bore 27a and a guide tube 31 is received in the downstream end thereof. A core member 27d has a passage 27e. Air under pressure is supplied from a source 32 to the chamber 29 around the core member 27d and passes through narrow annular passage 30 into the guide tube 31 to urge the catgut toward the grinding throat. The downstream end of guide tube 31 is received in the upstream end of a core member 34b located in the upstream end of the bore 34a of a driver 34. A passage 34c through core member 34b connects tube 31 to a guide tube 39 received in the downstream end of the bore 34a. Air from tube 31 in excess of that which can pass through passage 34c escapes through side vents 36. Air under pressure is supplied from the source 32 to the chamber 37 around the core member 34b and passes through helical passage 38 into the guide tube 39 to rotate and feed the catgut. The diameter of the convolutions of the helical passage diminish as the passage extends downstream. The downstream end of guide tube 39 is received in a guide block 41 mounted in support 23 and having a passage 42, with side vents 43, terminating in orifice 44 through which the catgut enters the grinding throat. The catgut leaving the grinding throat is received in chamber 45 of a feeder 46, air under pressure from the source 32 being supplied through a reducing valve 48 to the chamber 45 to repel coolant and grit. The feeder 46 has a passage 49 connecting chamber 45 to guide tube 50, the latter being almost as long as the catgut. Drivers similar to driver 34 may be used in place of feeder 27 and/or feeder 46.
Patent GB-683279-A (GB)
Title: Improvements in or relating to forming means for profile grinding wheels
IPC: B24B53/08
Filed: 1951-09-11
Abstract: 683,279. Trueing grinding wheels. PORTER, C. B. A., and TOOLMASTERS, Ltd. Sept: 11, 1951, No. 21429/51. Addition to 644,519. Class 60. In the pantograph-copying device for trueing grinding wheels described in the parent Specification the guard elements 9, 10 which are adjustable along a guideway 8 are provided with edges 12, 13 which, when brought into contact with the tracer pin 2, ensure that the working edges 14, 15 of the elements are tangential to the cylindrical surface of the pin. Each edge 12, 13 forms an angle with the corresponding working edge such that the bisector is normal to the direction of adjustment of the element. The pin may be replaced by others of different diameter.