baber/WOPTO huggingface dataset:
Patent GB-827807-A (GB)
Title: Improvements relating to the cleaning of tubular articles
Inventor: DICKEY CLYDE WILLIAM
IPC: B01J19/10
Filed: 1958-01-31
Abstract: 827,807. Cleaning hollow vessels. CORNING GLASS WORKS. Jan. 31, 1968, No. 3298/58. Class 138(1). [Also in Group XXVIII]. In a method of cleaning a tubular article, the latter is enclosed in a sound-proof chamber and a stream of air is passed along the article while the article is subjected to high-intensity sound. As shown, a sound-insulated housing 11 is provided with a door 12 mounted on a horizontal shaft 13 turned by a motor 18 through the medium of a speed-reduction gear 19, belt 20 and a slip clutch 21, when a pin 22 is withdrawn from two associated notches 17 oppositely disposed in a disc 23 secured to the shaft, the pin being normally held in one of the notches by a cylinder supplied with air via a magnetic control valve. With the door closed and the shaft locked by the' pin, one or other of two bundles of glass tubes 26, 27 held in carriers 33 are located within the housing and aligned between the output end of a transducer comprising a siren 30, and a foreign-matter-receiving funnel 31 ; air is supplied to the siren through manually-operable and magnetic valves. Exteriorly of the housing and in communication with the funnel 31 is an auxiliary housing 36 provided with a baffled air exhaust passage 37 which includes a basin containing liquid over which the air passes.
Patent GB-678323-A (GB)
Title: Photographic preparation of cellulose ester lithographic printing plates
IPC: G03F7/039
Filed: 1950-02-09
Abstract: 678,323. Photo-mechanical printing-plates. KODAK, Ltd. Feb. 9, 1950 [Feb. 9, 1949], No. 3377/50. Class 98 (ii). Lithographic plates are made by sensitizing a hydrolysed surface of a cellulose organic acid ester sheet with a ferric salt reducible with blue or ultra-violet light but incapable of oxidation of hydrolysed cellulose ester to the alkali removable state, such as ferric ammonium citrate, oxalate or tartrate; exposing to imageforming light to produce a ferrous salt image in the exposed areas, and treating the sheet with an oxidizing solution followed by or including alkali to remove the hydrolysed cellulose ester from the exposed areas. It appears that the ferrous salt has a catalytic effect, permitting such removal. Sensitization of the sheets may be effected in advance of use as distinct from bichromate sensitizations, which deteriorate rapidly. The ester sheet may be reinforced by lamination as to aluminium foil or waterproof paper before or after hydrolysis and may be furnished with an antihalation layer, particularly that described in Specification 678,322. By incorporation of potassium ferricyanide or a water-soluble silver salt into the sensitizer or application of a solution of such immediately after exposure, the exposed image becomes visible and may be inspected before its removal by alkali. In example 1 a sheet of cellulose triacetate is surface hydrolysed, sensitized with a water solution of ferric ammonium citrate and potassium ferricyanide to which a wetting agent has been added, exposed under a negative to a carbon arc or mercury vapour lamp and washed in water to show a blue image in the exposed areas. Thereafter treatment with alkaline hydrogen peroxide removes the blue image together with the oxidized hydrolysed cellulose ester to produce a lithographic printing-plate. In example 2 silver nitrate solution is applied after exposure to render the exposed areas visible, and etching is effected by ammonium persulphate solution followed by dilute sodium hydroxide. Specifications 617,227 and 678,321 also are referred to.
Patent GB-834460-A (GB)
Title: Method of desulfurizing hydrocarbon oil
IPC: B01J23/755
Filed: 1957-01-31
Abstract: Hydrocarbon oils containing organic sulphur compounds are desulphurized by contacting the oil in the presence of hydrogen at 600-1000 DEG  F. (315-540 DEG  C.) with a catalyst containing nickel meta-titanate (NiTiO3) as the essential component.  The catalyst is prepared by calcining for more than one hour at 1400 DEG  to 2000 DEG F. (700-1095 DEG  C.) a mixture of a nickel compound affording an oxide of nickel and a titanium compound affording an oxide of titanium, the mixture containing between 0.5 and 3 atoms of nickel per atom of titanium.  Several nickel and titanium compounds are mentioned, the preferred mixture being NiCO3 with TiO2.  The calcined catalyst may be used as fragments or may be pulverized and pelleted, e.g. with stearic acid in which case a carrier, e.g. activated alumina or hydrous alumina gel, may be incorporated.  When used the catalyst may be regenerated by burning off the carbonaceous deposits with dilute oxygen at temperatures up to 1800 DEG  F. (980 DEG  C.). The process is particularly suited to olefinic feed stocks since the catalyst preferentially catalyse desulphurization with minimum saturation of olefin content.  The desulphurization may take place in the vapour or liquid phase depending on the boiling point of the feed stock (e.g. a naphtha and gas oil respectively).  Pressures may range from 100 to 3000 p.s.i.g. and hydrogen may be employed in amounts of 500 to 5000 s.c.f./bbl. oil.  The hydrogen may be generated externally or internally as in autofining.  Hourly space velocities of 0.5 to 20 vols. oil.vol. catalyst may be used.  In examples, nickel meta-titanate prepared by calcining a mixture of 237.4 g. NiCO3 and 79.9 g. TiO2 (2 : 1 molar Ni : Ti) at 1550 DEG  F. is contrasted with a mixed catalyst consisting of 74.7 g. NiO and 79.9 g. TiO2 (1 : 1 molar Ni : Ti).  Each catalyst is used in the desulphurization of a coke still naphtha at 750 DEG  F.  (400 DEG C.), and 1000 p.s.i.g. using 2000 s.c.f. H2/bbl. oil and a liquid hourly space velocity of 2.
Patent GB-123322-A (GB)
Title: Process for Treating Fuels.
Inventor: ADRIEN BRUNO SERRET
IPC: C10B57/06
Filed: 1919-02-12
Abstract: 123,322. Serret, A. B. Oct. 23, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Composition fuel.-Lime or other oxide of a metal or a carbonate which is convertible into oxide by heat is mixed with fuel, rich or poor, such as peat, lignite, schist, or mine refuse, for combustion in furnaces or gas-producers to obtain a great amount of heat and also, in the form of ammonia, nearly the whole of the nitrogen of the fuel. By causing steam or water to pass over the burning fuel, hydrogen is evolved and combines with the nitrogen to form ammonia, which is collected in the usual way. Nearly all oxides of metals or carbonates which change into oxides by the action of heat are suitable for use in carrying out the process.
Patent GB-437724-A (GB)
Title: Improvements in and relating to polyphase rectifiers
IPC: H02M7/15
Filed: 1934-02-02
Abstract: 437,724. Converting. AKT.-GES. BROWN, BOVERI, & CIE, Baden, Switzerland. Feb. 2, 1934, No. 3471. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 7, 1934]. [Class 38 (ii)] In a grid-controlled rectifier having groups of anodes fed from secondary windings of a supply transformer, equal load distribution between the groups of anodes is obtained by retarding the moments of ignition of the anodes in the group which takes the greater amount of power and advancing the moments of ignition of the anodes in the group which takes the lesser amount of power. In one arrangement in which adjustment is affected manually the grid potentials are supplied from two distributers the stators of which can be rocked by means of a right-and-left handed worm drive. Adjustment is made until the readings of two ammeters in the neutral point connections of the socondary windings are equal. In a modification the worm shaft is coupled to a reversible motor which is controlled by a differential relay the coils of which are in the neutral leads. In a further modification the neutral points of the windings are connected through a centre tapped resistance to the ends of which the armature of the motor is connected so that voltage unbalance will cause operation of the motor in one direction or the other. In a further modification the distributers are driven separately by synchronous motors and the voltage across the shunt is used to cause a shift of the magnetic axes of the fields produced by the stators, the connections being such that the axes shift in opposite directions. In a further modification shown in the Figure for a rectifier provided with an interphase transformer t and also anode chokes v to allow two anodes to be supplied from each phase winding, additional windings z are inductively associated with the chokes and these are connected in opposition through the primary windings of a differential transformer u having centre-tapped secondary windings connected to the A.C. supply c and to the synchronous motors m1, m2 driving the distributers a, b. When there is load balance the transformer u is not energized, but when load unbalance occurs voltages appear in the secondary windings which cause phase displacements in opposite directions of the supplies to the motors m1, m2. Where independent transformers are used for supplying the rectifier the differential transformer u may be connected in the primary circuits.
Patent GB-1148344-A (GB)
Title: Method for the removal of inclusions from molten metals by filtration
Inventor: SNOW GEORGE
IPC: C22B21/06
Filed: 1967-01-24
Abstract: 1,148,344. Filtering molten metals. FOSECO INTERNATIONAL Ltd. 22 Jan., 1968 [24 Jan., 1967], No. 3585/67. Heading B1D. Inclusions are removed from molten metal by passing it through a bed of a granular metal halide whose melting point is higher than that of the metal. Preferred metals are aluminium and magnesium; preferably the bed is 52% CaF 2  and 48% MgF 2 , with a grain size of 3-6 mm. The process may be carried out in a preheated cast iron cylinder (4) with a perforated bottom (5), the bed always being immersed in the melt (the Figure, not shown).
Patent GB-759063-A (GB)
Title: Improvements in or relating to optical systems for relating colour component images
Inventor: DEARING LEROY MATTHEW
IPC: G02B5/28
Filed: 1954-02-08
Abstract: 759,063. Optical systems. TECHNICOLOR MOTION PICTURE CORPORATION. Feb. 8, 1954, No. 3608/54. Class 97 (1). In a beam light dividing or combining system having a surface at which an incident beam is divided into component beams for colour photography or television or component beams are combined, the surface is framed by coating a transparent body with an optical interference coating which reflects some light of one of the colours and transmits the remainder of that light and the remaining colours, the layers being chosen so that the amount so reflected is such as, having regard to the sensitivities of the emulsions, or the intensity of the projecting beams, as to provide a colour balance between the beams. Fig. 4 shows a beam splitting system for' use in photography comprising prisms P5, P6, P7 and P8 cemented together as shown with interference coatings Db and Dr therebetween and photographic emulsions Sb, Sg and Sr respectively arranged for recording the blue, green and red images framed by a lens L. It is supposed that the emulsion Sg is less sensitive than Sr which is itself less sensitive than Sb. To balance these differences of sensitivity the layers Db and Dr are formed by the superposition of layers of alternately high and low refractive index such as zinc sulphide and lead fluoride, are designed to transmit all the incident green light and also so much of the red and blue light as is necessary to ensure that the red and blue light respectively reflected to the emulsions Sr and Sb will produce the same effect thereon as does the green light on the emulsion -Sg. Filters Fb, Fg and Fr are provided to ensure such equalization. In the alternative the blue light may be transmitted and the red and green light reflected by the coatings. The invention may be applied to a prism having only one surface effecting the light division as described in Specification 382,239, one of the beams, either the reflected or transmitted beam, being incident on a single film and the other being incident on a bipack film. Suitable filters being provided to ensure the recording of the three colour components. The invention may also be applied to a beam splitter of the type described in Specification 475,808 and shown in Fig. 11 when the two light-dividing coatings Db and Dg are cemented between triangular prisms for framing, at the desired intensities, the red, green and blue images R, G and B. Alternatively, the prism P12 and coating Dg may be omitted and the coating Db framed for the recording of twocolour images on a film placed at Sbg. The system may also be used for framing three component images for colour television. Specification 716,332 also is referred to.
Patent GB-775077-A (GB)
Title: Improvements relating to dry-shaving apparatus
IPC: B26B19/04
Filed: 1955-02-08
Abstract: 775,077. Dry shavers. HEYEK, G. Feb. 8, 1955 [Feb. 26, 1954], No. 3724/55. Class 131. A dry shaver comprises an inner cutter having cutting edges lying on a cylindrical surface and reciprocated along the axis of curvature of an inwardly concave, flexible, shear plate secured along two opposite edges to a carrier plate mounted on the dry shaver casing, the shear plate forming a yielding guide for the cutter which is able to move transversely of the axis of curvature and which is urged towards the shear plate by a resilient member able to flex in any direction. As shown, an inner cutter of the kind disclosed in Specification 775,078 is reciprocated beneath a flexible shear plate 6 secured along two opposite edges to a cap 3 detachably secured to the casing 1. The base plate 10 of the cutter is apertured to receive a coupling pin 11 secured to a connecting rod 13, formed of outer layers 14 of plastic impregnated fabric and an inner lubricating-absorbing layer 15 of filter paper, and has a circular aperture 20 receiving a pin 12 eccentrically mounted on the drive shaft 2 and engaging a transverse aperture in the coupling plate. The cutter is urged against the shear plate by coil springs 16, which may be replaced by rubber rods or tubes and is retained by hooks 19 when the cap 3 is removed for cleaning. A second cutting head is provided at the opposite end of the casing and has a fixed comb plate 21, and a spring-urged inner comb plate oscillated on a pivot pin 24 by an eccentric secured to the other end of the drive shaft. Specification 468,545 also is referred to.
Patent GB-659624-A (GB)
Title: Improvements in double twist spindles for textile machines
IPC: D01H7/86
Filed: 1949-02-10
Abstract: 659,624. Double twist spindles. PLANET, F., and GODET, P. Feb. 10, 1949, No. 3727. Convention date, Feb. 10, 1948. '[Class 120 (ii] ) A double twis spindle comprises a sleeve 10 surrounding a hollow rotatable spindle shaft 3, bu eccentric in relation thereto, said sleeve being rotatably mounted on the framework support ing the spindle shaf and on a spool sup port 6 which is itsel mounted for relativ rotation on the shaf 3, means being prc vided to cause rota tion of said sleeve synchronism with th shaft and to permi radial passage through the sleeve of the thread issuing from the internal bore of the shaft. As shown, two radial projections 12 carried by the shaft 3 and passing through grooves 11 in the sleeve 10, form the means for rotating the sleeve and also the outlet guides for the thread. Elastic means, such as rubber sleeves or springs, may be interposed between the projections 12 and the sleeve 10. In a modification bearings 2 and 9 and bearings 5 and 8 are disposed one within the other, the sleeve 10 being mounted externally of the bearings 8 and 9. 659,767. Shuttles for looms. R 0 E - LANDTS, A. Dec. 24, 1948, Nos. 33323 and 33324. Convention dates, Sept. 11, and Nov. 5. [Class 142(iii)] A shuttle is formed of separate parts comprising side walls, tips, distance pieces, and cop retaining means, secured together by bolts at each end of the shuttle. Bolts 11, 12, at one end of the shuttle pass through side plates 1, 2, clip members 6, 7, which retain the cop distance pieces 8, and a central, tongue 4 carrying the tip 3. The cop may be held on a peg pivoted to the tongue 4. At the other end of the shuttle, to provide for automatic threading, distance pieces 19a, 19b provide a central aperture 21 and a threading slot 20 which extends to an aperture on the lateral face of the side plate 2 to the central apertures in the side plate 2 to the central apertures 21. Metal pins are inserted in the horizontal passage to ensure easy running of the yarn where the yarn is subject to friction.
Patent GB-607506-A (GB)
Title: Improvements relating to ash ejectors for boiler smoke boxes
IPC: F23J1/00
Filed: 1946-02-06
Abstract: 607,506. Piston valves. DAVIES & METCALFE, Ltd., and METCALFE, R. D. Feb. 6, 1946, No. 3777. [Class 135] A manually-actuated piston valve for an ash ejector comprises a cylindrical casing having longitudinally spaced outlets b ... e connected to ash ejector nozzles, a pressure indicator connection f and an inlet a controlled, by a stop valve g. The valve g controls the flow of pressure water to a hollow piston h having circumferential ports i, which coact with the outlets, and holes p in its crown to admit pressure water above the piston and reduce the effort required to operate the valve. A link m pivoted at one end to a lug on the casing is pivoted at its other end to a hand-lever k connected to a rod j which bears upon the piston and is provided with a spring-catch n for engagement with notches on a plate o on the casing. In operation, the opening of the valve g permits pressure water to move the piston to the top of the casing to close the outlets to the ash ejector and open the pressure indicator connection f. The lever k is then moved downwards against the water pressure to close, the indicator connection and successively connect the ejector nozzles with the pressure water.
Patent GB-1375125-A (GB)
IPC: B65B13/20
Filed: 1973-01-25
Abstract: 1375125 Packaging springs FEDERNWERK MARIENBERG VEB 25 Jan 1973 3921/73 Heading B8C Means for holding in compression a plurality of compression springs, or columns 2, of superimposed compression springs, 1, located in adjacent, side-by-side relation comprises a plurality of anchoring elements 5 each slightly longer than the springs, or columns, when the latter are fully compressed, each fixed at one end to a rigid connecting element 4 so that two adjacent anchoring elements are held spaced apart by said connecting element a distance at least approximately equal to the pitch diameter of two adjacent springs, or columns, and each having a loop at its free end, and at least one separate, rigid locking element 7 which can be removably inserted through one, or each of the loops. The arrangement is such that each anchoring element 5 can be inserted through a respective one of the springs, or columns, with the latter compressed the locking element, or locking elements, can be inserted through the loops and thereafter, on releasing the springs, or columns, from the compressive force each spring, or column will bear at its opposite ends against and will be retained in compression between, the connecting and locking elements. As shown rows of side-by-side stacks of spring inserts, which are each made up of superposed double-cone springs and are interconnected by coils 3 are held in a compressed state for storage, or transport, by means of lower zig-zag bars 4 in conjunction with upper straight bars 7, each looped portion of a bar 4 being inserted through a stack after the latter has been compressed and the stack being secured under compression by a bar 7 which is engaged between the top of the stack and the underside of the corresponding loop 5. In an alternative arrangement, Fig. 2, the tops of the loops 5 of a bar 4 are twisted through an angle of 90 degrees so that a single upper bar 7 can be passed through all the loops of one lower bar 4. In another embodiment, Fig. 3, a lower connecting bar comprises a series of loops 10 which are secured at their lower ends to a bar 9 and which are adapted to receive an upper connecting bar 7 beneath their upper, looped, ends. A press, for compressing spring inserts so that they can be connected in the compressed state is described, Fig. 4, not shown.
Patent GB-784785-A (GB)
Title: Improvements in or relating to processes for the production of selenium rectifiers
IPC: H01L21/10
Filed: 1954-02-10
Abstract: 784,785. Plate rectifiers. SIEMENSSCHUCKERTWERKE AKT.-GES. Feb. 10, 1954 [Feb. 10, 1953], No. 3966/54. Drawings to Specification. Class 37. A selenium rectifier is produced by building up the selenium in a plurality of layers, the layer adjacent the barrier layer including as the only additive a material such as thallium which promotes the formation of the barrier layer, and the layer most remote from the barrier layer including as the only additive a halogen such as chlorine, or halogen compound which increases the conductivity of the selenium. Intermediate layers containing either or both additives may be provided, in which case the quantity of halogen is made smaller in the "layers nearer the barrier layer, while the quantity of the thallium type of impurity is made greater. Materials said to be known as suitable for promoting barrier formation include Sb, Bi, Sn, T1, In, Ga, Cd, Cu, Pb, As, S, and alloys and compounds of these substances.
Patent GB-621256-A (GB)
Title: Improvements relating to multi-stage axial-flow compressors or turbines
IPC: F04D19/02
Filed: 1947-02-11
Abstract: 621,256. Elastic-fluid turbines 'and compressors. SMITH, D. M., SHANNON, J. F., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 11, 1947, No. 4009. [Class 110(iii)] The rotor of an axial flow turbine or compressor is built up of a number of flanged discs 10 which provide an interrupted conical surface 1d to which the rotor blades are secured. Successive discs may have surfaces of a conicity diminishing towards the high-pressure end and the discs at the high-pressure end may be cylindrical. The stator casing 2 is cylindrical throughout. The rotor discs are welded together at 11 and gaps are left between the rotor hubs 10b. A shaft may be omitted and the hubs 10b formed to interengage with axial freedom. The surface of the disc flanges beyond the blade roots lies within the conical surface as at 1k, 1l to provide room for the insertion of the blades into transverse blade slots. The blade slots may be axial or inclined to the axial direction. The discs with a cylindrical surface may have circumferential blade slots. The stator blades are secured as described in Specification 620,981 and are provided with shrouding 2d to bridge the gaps in the conical surface. The shrouding is segmental and there may be one piece for each blade.
Patent GB-215123-A (GB)
Title: Improvements in and relating to devices for sharpening knives, razors and the like
IPC: B24D15/08
Filed: 1923-02-10
Abstract: 215,123. Chantry, J. Feb. 10, 1923. Block apparatus; cutting-edges, shaping and treating; steels; guides and rests.-Comprises a steel or other sharpening-member, for example a file or a carborundum stick e pivotally mounted at one end on a base a and adapted to be oscillated m contact with the edge of a knife, razor, &c. so disposed in a groove in the base as to present the edge at the correct angle to the sharpening- member. The steel is pivoted, so that its height is adjustable to suit the width of the blade, on a pin k, a spring f being disposed between the steel and a bracket g. Two grooves b, c may be provided in the base ; the grooves may be formed to take blades of two widths. The upper face of the base may be cut away midway of its length, grooved supports being provided for the blade. The grooves may be of square, dovetail or other cross-section, and several grooves may be. provided to allow of several blades being sharpened simultaneously. The section of the grooves may be such as to form a receptacle for metal particles ; or secondary grooves may be provided for this purpose communicating with a tray in the base. The pivot may be formed to. receive an ordinary steel, or may be in the form of a universal swivel. According to the Provisional Specification, the sharpening-medium may be carried in a holder pivoted on the base.