baber/WOPTO huggingface dataset:
Patent GB-964420-A (GB)
Title: Improvements in or relating to silicon ingots of high purity and to a process and an apparatus for the production thereof
IPC: C30B35/00
Filed: 1960-10-14
Abstract: A silicon ingot is formed in a silica container having an outer coating which causes disintegration of the container during solidification of the ingot.  The coating, which may be solid or liquid, may contain an alkali or alkaline earth metal acid fluoride, fluosilicate, or sulphate and/or hydrofluoric, fluosilicic or sulphuric acid.  An aqueous paste containing equal parts by weight of sodium fluosilicate and sodium acid sulphate is specified.  The container may be of transparent or opaque quartz, or may comprise an inner layer of transparent quartz and an outer layer of opaque quartz. The resulting ingot may be sanded and rinsed in water and the top of the ingot, which contains <PICT:0964420/C1/1> segregated impurities, cut off.  The silicon treated may have a resistivity of 200 ohm-cm. and the product may have a resistivity of as low as 60 ohm-cm. and a purity of 99.9%, the resistivity being determined on a single crystal drawn in vacuo.  As shown, a quartz container 1, having an inner quartz cover 4, an outer graphite cover 5, and a paste coating 3, is situated in a graphite container 6 having a collar 8 and a support comprising members 9 and 10, the latter being replaceable.  The graphite container is surrounded by an induction heating coil 11 in an insulated casing 12 having a lower extension 13.  The arrangement of induction coil and insulation is vertically movable by means of an arrangement of ropes and pulleys and a variable speed motor.  Before introduction of the charge, the centre of the induction furnace is brought in line with the bottom of the graphite container, which is thereby brought to a temperature of 1500 DEG  C. When the initial charge has been melted, the centre of the furnace is brought in line with the centre of the silica container. When the whole charge has been melted, the centre of the furnace is brought in line with the surface of the molten silicon for a period and is then lowered to the original position for a further period.
Patent GB-1425087-A (GB)
Title: Three-phase circuit breaker for single-pole switching
IPC: H01H9/08
Filed: 1973-07-25
Abstract: 1425087 Electric switchboards KRONE GmbH 25 July 1973 [17 Aug 1972] 35419/73 Heading H1N [Also in Division H2] A three-phase circuit-breaking assembly comprises a casting resin casing with conductors 6 embedded in a rear part 1 and bus-bars 4 carried in a front part 3, fixed contacts 5, 32 connected to the conductors and bus-bars, and individually removable tubular contacts 9 cooperating with the fixed contacts. Each contact 9 carries at its outer end an insulating sleeve 10 within an insulating hood 13 which fits over a respective projecting tubular extension 15 of the casing and has a flange 16 which covers an aperture 17 for the insertion of an earthing rod. Each earthing rod, Fig. 6 (not shown) has a lateral projection for covering the opening in the extension 15 when the contact 9 has been removed from the extension and the earthing rod has been inserted through the aperture 17. Each sleeve 10 is provided with spring biased detents 43, 44 to retain the contact 9 in its fully inserted position and to cause the stressing of a spring in a withdrawal tool so that the contacts 5, 9 may be opened rapidly. The withdrawal tool (not shown) may be engaged in turn in a recess in the end of each hood 13. The sleeves 10 have radial holes to permit the venting of gases from arc-quenching means (not shown) within the contacts 9.
Patent GB-1075975-A (GB)
Title: Improvements in gas turbine rotors
IPC: F01D5/08
Filed: 1965-08-18
Abstract: 1,075,975. Gas turbine rotors. NATIONAL AEROSPACE LABORATORY OF THE SCIENCE & TECHNOLOGY AGENCY. Aug. 18, 1965 [Aug. 19, 1964]. No. 35438/65. Headings F1G and F1T. A gas turbine rotor disc 2 carries blades 3 having shanks 4. Plates 5, (6), Fig. 1A (not shown) on opposite sides of the disc 2 overlap the spaces between adjacent shanks 4 in such a manner that a cooling air entry 7 to each space is formed at the radially inner edge of each upstream plate 5 and an air outlet 8 at the radially outer edge of each downstream plate (6). An open ended box structure is mounted in each space, the interior of the box receiving cooling air through inlet 7. A cooling air stream 7' also flows to the space between the box walls and the shanks 4, this air leaving through a gap 8' between adjacent blade platforms 9. The shanks 4 may have fins (10), Fig. 2 (not shown), for additional cooling. Tongues (11, 12), Fig. 3 (not shown), are integral with, or welded to, the plates 5, (6) to prevent leakage of hot working gas into zones (16, 17) radially inwards of the guide vanes (13, 15). The tongues may, alternatively, be provided on the blade platforms 9. Deflecting rings (18, 19) assist in directing cooling air on to the rotor, which has concave portions (20, 21) and may be of titanium.
Patent GB-1263912-A (GB)
Title: Machine tool installations
IPC: B23Q41/00
Filed: 1968-03-13
Abstract: 1,263,912. Machine tool details; drilling and boring; milling; turning. MOLINS MACHINE CO. Ltd., and D. T. N. WILLIAMSON. 12 March, 1969 [13 March, 1968], No. 35511/71. Divided out of 1,263,911. Addition to 1,202,361. Headings B3B, B3C, B3K and B3T. The Specification is similar in content to the parent Specification but the claims are directed to a machine tool installation for producing a variety of components as claimed in claim 1 of parent Specification comprising a plurality of numerically controlled machine tools, a plurality of pallets for carrying workpieces and cutting tools, automatic transport devices operative to transport the pallets to and from the machine tools so that each pallet carrying a workpiece and at least one pallet carrying appropriate cutting tools are delivered to a selected one or more of the machine tools each of which performs selected machining operations appropriate to the component of said variety to be produced from that workpiece, wherein at least one of the machine tools is a dual-purpose machine tool capable of rotating a workpiece and engaging it against a non-rotating cutting tool to perform a turning operation on the workpiece, and capable of rotating a cutting tool and engaging it against a non-rotating workpiece to perform a non- turning (e.g. milling or drilling) operation thereon.
Patent GB-963993-A (GB)
Title: Improvements in and relating to electric motor-driven liquid pumps
Inventor: AABYE JORGEN
IPC: F04D13/06
Filed: 1960-10-17
Abstract: 963,993. Indicating rest or motion and revolution-direction. H. HOLLESENS FABRIKKER A.S. Oct. 17,1960, No. 35544/60. Heading G1K. [Also in Divisions F1, F2, and H2] In a motor driven centrifugal pump, the shaft has an extension 93, Fig. 4, with a square end which is visible through an opening in the pump casing for the purpose of ascertaining whether the shaft is rotating. The opening is closed by a removable cover 92 which is preferably completely or partly transparent. In another embodiment, a valve 64, Fig. 3, can be released from its seating by slackening a nut 66, thereby venting air from the pump. On further slackening of the nut, an oblique end face 67 on the valve spindle comes into contact with an oblique end free 57 formed on a conical bear ing pivot 56 carried by the pump shaft 55, whereby rotation of the shaft is indicated by reciprocating motion of the valve.
Patent GB-1282802-A (GB)
Title: A device for changing the working rolls of roll stands
Inventor: BRAHM WALTER IM
IPC: B21B31/10
Filed: 1969-07-18
Abstract: 1282802 Rolling mills MASCHINEN-UND WERKZEUGBAU GmbH 18 July 1969 [19 March 1969] 35600/71 Divided out of 1280033 Heading B3M An assembly for changing the work rolls 3 of a rolling mill comprises a carriage 5 having withdrawal sleeves 9 which co-operate with the necks of the rolls and which are hydraulically operated to clamp the necks. The carriage is movable on wheels 10 towards and away from the mill but is normally located on a pivoted platform 12. The platform can be pivoted downwardly from the position shown so that the carriage 5 is located beneath floor level, and the plate 14 assumes a position flush with the floor. The sleeves 9 are fixed in relation to one another, but they may both be vertically adjusted by changing the positions of eccentrically mounted wheels 10 for the carriage.
Patent GB-830257-A (GB)
Title: Improvements in or relating to conveyor rollers
IPC: B65G39/09
Filed: 1954-12-09
Abstract: 830,257. Stuffing-box substitutes. ROWNSON, DREW & CLYDESDALE Ltd., and MARRIOTT, J. A. March 9, 1956 [Dec. 9, 1954], No. 35688/54. Class 122 (5). [Also in Group XXXIV] In a conveyer roller, each ball-bearing comprises an outer race 1, an inner race 2, and annular sealing members 13, 14 of oil-resistant resilient material engaged in grooves 11, 12 in the outer race 1 and adapted to bear at their inner edges against shoulders 4, 5 formed on the inner race 2. The members 13, 14 are retained in position by split rings 15, 16. The bearings are mounted within steel rings of U-shaped cross-section inserted in the ends of the roller tubes 61. Metal end caps may also be provided at the free ends of the rollers.
Patent GB-1480158-A (GB)
Title: Radiator in a two-wheeled motor vehicle
IPC: B62J17/00
Filed: 1975-08-29
Abstract: 1480158 Vehicle radiators HONDA GIKEN KOGYO KK 29 Aug 1975 [4 Sept 1974] 35825/75 Heading B7H A motorcycle radiator 3 is provided with deflector plates 4 for guiding air thereto. The radiator is mounted between two forward frame uprights 2 of the motorcycle and the plates cover the fronts of the uprights.
Patent GB-444712-A (GB)
Title: Improvements relating to drill bits for drilling oil wells
IPC: E21B10/08
Filed: 1934-09-25
Abstract: 444,712. Well-drilling bits. ZUBLIN, J. A., 2369, East 51st Street, Los Angeles, U.S.A. Sept. 25, 1934, No. 35863. Divided out of 444,696. [Class 85] A cutter for a drill as described in Specification 444,696 comprises a bowlshaped body 20 with a cylindrical bearing surface 15alpha merging into a conical bearing surface 24, the angle at the apex of the cone being such that when the axis of the cutter is at about 30‹ to the vertical, the surface of the cone slopes downwardly and inwardly at all parts ; the angle is preferably 90‹. The body 20 has cutter blades 42 comprising a lower digging portion of triangular section and an upper reaming portion of rectangular section with one or more transverse cutting edges ; the reaming teeth lie on a sphere with centre D, while the digging portions of the blades lie within and eccentric to the sphere. Preferably, alternate blades have one reaming tooth which is the counterpart of the lowest of a number of teeth on each intermediate blade. Each cutter has an internal ball-receiving groove 47 of greater width than depth, and a notch in its rim for the insertion of locking means.
Patent GB-1442455-A (GB)
Title: Pigmentary composition
IPC: C09C3/06
Filed: 1973-07-27
Abstract: 1442455 Pigmentary composition T H FERRIGNO 27 July 1973 35976/73 Heading C1A [Also in Division C4] A pigmentary composition comprises agglomerates (size range 20 Á-1 cm.) consisting of 90-99 parts of an anhydrous silicate as defined (size range 2-40 Á) and 1-10 parts of an inorganic binder. The agglomerates may be prepared by mixing, forming and calcining at a temperature sufficient to bind the particles together to give a product with an S.G. of 60- 95% of that of the silicate and a water absorption of less than 10% by weight. The anhydrous silicate as defined may be a naturally occurring mineral e.g. SiO 2 , Be, Mg or Ca silicate or Li, Be, Mg, Ba, Na, K or Ca alumino-silicate or a mixture of these, and may contain up to 10% of associated minerals. Feldspar and mixtures of feldspar and silica are exemplified and claimed and silica is exemplified. Hydrous minerals may be calcined to a substantially anhydrous condition. The inorganic binder may be a glassy phosphate with 4-100 P atoms per molecule, an expanding lattice montmorillonite, a soluble silicate of Li, Na or K or a mixture of these, bentonite being preferred. The agglomerates may be prepared by mixing and forming in one step, e.g. in a rotating disc pelletizier or a drum tumbler or in two steps by mixing conventionally followed by any method offorming, e.g. extruding, compacting, tableting, spray drying or other procedures, water may be added as required. Calcining may be carried out by any method which prevents the agglomerates fusing together, a fluidized bed furnace is preferred for smaller agglomerates. The preferred form of the final product is a hollow spheroid and it may be used as a white pigment.
Patent GB-304308-A (GB)
Title: Process for increasing the speed of reaction in the production of sulphuric acid from sulphur dioxide-containing gases in the presence of nitrogen-oxygen compounds
IPC: C01B17/82
Filed: 1928-12-06
Abstract: 304,308. Metallges. Akt.-Ges., (for. merly Metallbank und Metallurgische Ges. Akt.-Ges.). Jan. 19, 1928, [Convention date]. Void [Published under Sect. 91 ef the Acts]. Sulphuric acid.-The rate of oxidation of sulphur dioxide in presence of nitrogen oxides is increased by rapidly whirling the mixture of gases while avoiding separation of liquid particles. If the whirling is effected by mechanical devices, these are kept at a temperature which prevents deposition, and if by electrical devices, the electrodes may be formed of wire, and may be placed well apart, or alternating or polyphase current may be employed. Water, dilute acid, nitrosyl sulphuric acid, or nitrous vitriol may be atomized into the gas current before passage through the whirling devices, and acid fog may be separated in a second apparatus. Specification 253,344 is referred to.
Patent GB-507546-A (GB)
Title: Improvements in and relating to compression casting machines for easily oxidizable metals
IPC: B22D21/00
Filed: 1938-12-10
Abstract: 507,546. Casting-machines. WAGNER, K. F. Dec. 10, 1938, No. 36034. Convention date, Dec. 22, 1937. Addition to 475,541. [Class 83 (i)] Metal pouring.-A casting-machine as in the parent Specification has' a plurality of pressure chambers 7, each fed by a self-enclosed duct and piston system 5, 6, connected to one furnace 2 and feeding into a common mould 1, 11. All the devices are operated simultaneously by hydraulic or electric control and may co-operate with an equal number of crucibles 15 on a single crucible may be used. If desired a group of the devices may be arranged at each of two sides of a mould and be actuated by a single control.
Patent GB-344415-A (GB)
Title: Improved manufacture of threads of textile material
IPC: C13B20/18
Filed: 1929-11-25
Abstract: <PICT:0344415/IV/1> <PICT:0344415/IV/2> Threads are impregnated and coated with a cellulose ether under a fluid pressure so that the elementary fibres are bound together and the constituent parts of a twisted or cabled thread are isolated from one another by the cellulose ether.  This is effected by placing the threads in contact with a solution of a cellulose ether in a volatile solvent, or in the form of an aqueous dispersion for a sufficient length of time, penetration being accelerated by vacuum or pressure or both.  Fig. 1 shows an apparatus for impregnating with the use of increased and diminished pressures.  The vessel a receives the threads which are wound on bobbins d held on the central perforated tube f by means of a clamping device g.  The container b stores the solution and is provided with a gauge glass g1 and a filling vat i.  The two vessels are connected together as shown, and each is connected to a compressed air supply at r and vacuum pipe at o. By manipulating the cocks in suitable succession, the container a is first subjected to diminished pressure, the impregnating liquid is transferred thereto, and compressed air admitted to the space above the liquid.  When impregnation is complete, a vacuum is created in the vessel b and the liquid forced back into it.  By causing vacuum to act in the container a, the bobbins exude the excess of impregnating liquid. The operation may be repeated two or three times.  If desired, the impregnated thread may be subjected to a further treatment at atmospheric pressure in the apparatus shown in Fig. 2.  The thread 1 coming from the bobbin 2 passes through the brush 3, between the bristles 7 of a brush secured to the hinged cover 8, then through a brush 10, and a brush 12 which reciprocates across the path of the thread, and is finally wound on to the reel 14.  The impregnating solution is placed in the recess 16.  The thread is passed through several baths in succession, with intermediate drying or through the same bath several times.  In the case of several successive treatments, the nature and concentration of the impregnating substance may vary from one treatment to another.  Thus the first impregnation should be penetrating, whilst subsequent treatment should cause the disappearance of surface down or fluff, make the thread stiffer, and finally polish it.
Patent GB-1193285-A (GB)
Title: Film-Forming Emulsions
Inventor: HARDT DIETRICH
IPC: C08F2/22
Filed: 1967-08-07
Abstract: 1,193,285. Grafted ethylene-vinyl chloride copolymers. FARBENFABRIKEN BAYER A.G. 7 Aug., 1967 [5 Aug., 1966; 27 Sept., 1966], No. 36180/67. Heading C3G. An aqueous emulsion of an ethylene-vinyl chloride copolymer is produced by incorporating from 15 to 100 parts by weight of a methacrylic ester containing from 1 to 6 carbon atoms in the ester alkyl or cycloalkyl group, styrene or vinylidene chloride into 100 parts of an ethylenevinyl chloride copolymer in the form of a 20 to 50% by weight latex, up to 50% by weight of the styrene or vinylidene chloride being optionally substituted by: (a) an acrylic ester or a methacrylic ester having from 1 to 8 carbon atoms in the ester alkyl group: (b) acrylonitrile or (c) a vinyl ester with 2 to 7 carbon atoms in the carboxylic acid residue or any mixture of components (a) to (c). The ethylene-vinyl chloride substrate copolymer may contain 73 to 20% ethylene, 25 to 70% vinyl chloride and 2 to 10% of a semi-ester of maleic acid and an aliphatic or cycloaliphatic monohydric alcohol with up to 18 carbon atoms or a salt thereof, or of an unsaturated sulphonic acid or salt thereof. Up to 20% by weight of the methacrylic acid ester having 1 to 6 carbon atoms in the alkyl ester group may be replaced by styrene, a C 1 -C 8 - alkyl acrylate, acrylonitrile, vinylidene chloride or a vinyl ester. In the examples, the substrate copolymers and graft monomers are as follows: (1) ethylene-vinyl chloride-maleic acid cyclohexyl semi-ester copolymer and methyl methacrylate, (2) ethylene-vinyl chloride-sodium vinyl sulphonate copolymer, methyl methaorylate and styrene, (3) ethylene-vinyl chloride copolymer and methyl methacrylate, (4) copolymer as in (2), and 2-hydroxypropyl methacrylate, (5) copolymer as in (1), vinylidene chloride and methyl methacrylate or ethyl acrylate, (6) copolymer as in (1), styrene and, optionally, methyl methacrylate, (7) and (8) copolymer as in (3), and styrene and (9) copolymer as in (1), styrene, acrylonitrile and methyl methacrylate or ethyl acrylate.
Patent GB-457703-A (GB)
Title: Improvements in hatch covers for ships and boats
IPC: B63B19/14
Filed: 1935-03-01
Abstract: 457,703. Hatches. REITH, R. B., 33, Sandhill, Newcastle-on-Tyne. March 1, 1935, Nos. 36483/34 and 24841/35. [Class 113 (i)] Hatch covers are made of rubber or rubber substitute so reinforced that they are enabled to withstand the load to which they are subjected. The reinforcing may be achieved by providing the cover sections with a stiffening core of wood or metal, or exterior stiffening bars may be employed. The sections may further be composed of layers of sheets of flexible and resilient sheet material united together and enclosed in an outer cover of rubber or rubber substitute. The hatch sections may also comprise rigid sections fitted around its edges with rubber or rubber substitute for the purpose of providing a water-tight joint. Mineral fibrous material, for example asbestos, may be incorporated in the rubber. In the Figure, the hatch sections 8 provided with exterior stiffening bars 9 are held by clamps 13 in the webs of the hatch beam forcing wedge 14 on the battens 11.
Patent GB-808298-A (GB)
Title: A process for the conversion of dimeric nitrosohydrocarbons into oximes
Filed: 1956-11-29
Abstract: Oximes are prepared by treating a secondary aliphatic or alicyclic dimeric nitrosohydrocarbon with dry hydrogen chloride or hydrogen bromide in the presence of an inert solvent, e.g. the parent hydrocarbon or a halogenated hydrocarbon such as chloroform or carbon tetrachloride.  The dimeric nitroso-compounds which are also known as bis-nitroso-compounds, are thought to have the structure <FORM:0808298/IV (b)/1> and may be prepared by a process described in Specification 789,731.  The rearrangement takes place at room temperature or above and the reaction rate is increased by irradiation of the reactants, e.g. with a U.V. lamp, either during or after the introduction of the hydrogen halide.  The oxime itself is recovered from the resulting oxime hydrochloride or hydrobromide by treatment with 2N caustic soda.  Examples are given of the conversion to the corresponding oximes of dimeric nitrosocylohexane, nitrosocyclo-octane and 4-nitroso-n-heptane by treating with hydrogen chloride both in the dark and while being irradiated.
Patent GB-834723-A (GB)
Title: Apparatus for die casting and moulding
Inventor: HESKETT KENNETH DAVID
IPC: B29C45/00
Filed: 1957-11-22
Abstract: 834,723. Injection moulding. SPARKLETS Ltd. Nov. 18, 1958 [Nov. 22, 1957], No. 36531/57. Class 87(2). [Also in Group XXII] Apparatus for feeding flowable material such as molten metal or synthetic resins to the charging chamber 16 of a pressure die casting or injection moulding machine comprises a feed conduit 20 extending from a reservoir 18 for the material to a port 21 in the charging chamber, a vacuum conduit extending from a second port 22 in the charging chamber.to a source of vacuum 26, 27 via a valve 25, a charging plunger 17 which closes said ports during its delivery stroke and uncovers them during its return and means, such as the extension of the vacuum conduit upwardly as shown, for preventing the fiowable material being sucked into the source of vacuum. The feed conduit is heated by gas burners 29, and the nose 30 of the plunger 17 lies between the two ports when the plunger is in its retracted position to prevent flowable material being delivered directly from the feed conduit into the vacuum conduit.