baber/WOPTO huggingface dataset:
Patent GB-225931-A (GB)
Title: Improved method of and apparatus for boring wells and the like
IPC: E21B4/00
Filed: 1923-10-19
Abstract: 225,931. Mancho, A. I., (Capeliushnicoff, M. A.). Oct. 19, 1923. Bore-hole apparatus.-In drilling bore-holes, wells &c., a pump and accumulator force water or slush through non-rotating drillpiping and a nozzle ring F<2> to drive a rotor F and thereby, through enclosed epicyclic gearing I, to rotate the drill-carrying member G ; after leaving the rotor, the water &c. passes around the gear casing L through lateral ducts L<2> to loosen and raise the spoil.
Patent GB-864228-A (GB)
Title: A process for producing azo-dyestuffs insoluble in water on the fibre
IPC: D06P3/68
Filed: 1957-07-18
Abstract: 6-(21:31-Hydroxynaphthoylamino)-3-chloro-indazole used in the production of azo dyes on the fibre (see Group IV(c)) may be prepared by condensing 2 : 3-hydroxynaphthoic acid with 3-chloro-6-amino-indazole in a solvent such as toluene, xylene, chlorobenzene or dimethylaniline in the presence of a condensing agent, such as phosphorus trichloride.  Specification 707,897 is referred to.ALSO:Water insoluble azo dyestuffs are produced on the fibre by coupling on natural or regenerated cellulose fibres the coupling component of formula :  <FORM:0864228/IV(c)/1> with a substituted or unsubstituted diazonium or tetrazonium compound from a primary mono- or di-amine of the benzene or azobenzene series.  The fibre is impregnated with the coupling component by treatment in a bath or by padding on the foulard and the dyestuff is also developed in a bath or on the foulard. Orange, claret, red-brown, scarlet, garnet, blue and black dyeings may be obtained by the process.  In examples the production of azo dyes on cotton yarn and fabric is specified using the diazonium compounds from 2-methoxy aniline-5-sulphonic acid or -sulphonic acid-n-butylamide, 1-amino-2-methoxy-4- or -5- nitro aniline, 2-ethyl-sulphonyl-5-trifluoromethylaniline, 2-methyl-4-benzoylamino-5-chloroaniline, 1 : 4-diamino-2 : 6-dichlorobenzene, 4-aminodiphenylamine, 1-amino-2-nitro-4-methylbenzene and 4-amino-21 : 31-dimethyl-1 : 11-azobenzene.  Specification 707,897 is referred to.
Patent GB-829988-A (GB)
Title: Process for the utilisation of residues from the incineration of refuse
IPC: C04B18/10
Filed: 1958-07-16
Abstract: A slag, suitable as a concrete aggregate, is obtained from the residues of refuse incinerators by homogenizing the residue after magnetically separating iron, charging on to a moving sintering grate, igniting and sintering by the known down draught sintering technique.  The residues contain fuel and this is adjusted to a calorific value equivalent to a coke content of 6-8% either by materials of low fuel content, e.g. building debris, or materials rich in fuel, e.g. furnace ash or boiler flue ash.
Patent GB-1496843-A (GB)
Title: Self lubricating bearings
IPC: F16N7/12
Filed: 1975-05-23
Abstract: 1496843 Bearings LA METALLURGIE FRANCAISE DES POUDRES-METAFRAM 23 May 1975 [13 June 1974] 22894/75 Heading F2A A self-lubricating bearing member comprises a porous bearing surface filled with oil, and made by sintering a powder composed only of one at least of molybdenum, lead, silver and nickel. Preferably the surface is that of a microporous layer on a macroporous oil-reservoir (e.g. of iron) in a journal-bearing.
Patent GB-1489687-A (GB)
Title: Devices responsive to the presence of carbon monoxide and in methods for their manufacture
IPC: G01N27/12
Filed: 1975-05-23
Abstract: 1489687 Metal oxide gas detectors CERBERUS AG 23 May 1975 [11 June 1974] 22895/75 Heading G1N Carbon monoxide is detected by monitoring the resistance of a body formed predominently of silver oxide and containing MnO 2  and/or Co 2 O 3  or an alkaline earth metal oxide to speed the response. In one arrangement the body is formed by applying two spaced apart gold electrodes to a quartz or ceramic substrate and depositing a layer of silver over the surface of the substrate and electrodes. The silver layer is then oxidized throughout its whole thickness by exposure to an oxidizing atmosphere. In an alternative arrangement the body is in the form of a pressed or sintered bead or pellet which may be made by precipitating silver carbonate from a mixture of solutions of silver nitrate and sodium carbonate, converting the silver carbonate to silver oxide by heating, milling the silver oxide, compressing to form a bead or pellet and applying leads of W or Mo. In use the electrodes are connected to the series connection of a voltage source and a current measuring device or connected to another resistance measuring device e.g. A.C. bridge, voltmeter or relay which may operate an alarm. If the detector is to be used as a fire alarm it is installed with a dessicator in an apertured housing so that the air enters sufficiently slowly for water vapour to be absorbed by the dessicator.
Patent GB-461275-A (GB)
Title: Improved electric heating apparatus and method of making it
IPC: H05B3/26
Filed: 1935-08-15
Abstract: A metal electric resistance layer, e.g. a silver layer, in the form of a narrow strip is deposited chemically on a tempered glass support and a further layer, e.g. of nickel, is deposited electrolytically on the first layer.  The glass is covered by known photographic processes with a resist where deposition is not wanted.  The layers are thicker near the terminals and may form an ornamental pattern. Varnish may be applied over the layers.
Patent GB-874922-A (GB)
Title: Improvements in and relating to washing machines for washing or rinsing and subsequent centrifuge drying of a wash
IPC: D06F37/22
Filed: 1959-07-03
Abstract: 874,922. Washing-machines. BROWN, BOVERIE & CIE A.G. July 3, 1959 [Dec. 31, 1958], No. 23008/59. Class 138 (2). [Also in Group XIII] A machine for washing or rinsing and subsequent spin-drying comprises a drum 12 which rotates about a horizontal axis and is automatically compensated for uneven weight distribution during spin-drying by compensating containers 13 uniformly distributed in ribs 16 on the periphery of the drum. The containers are normally filled with water or lye through a scooping action but on radial deflection of the drum under uneven weight distribution a spring- urged, conical striker valve 14 in each container is pressed against the wall of the drum housing 3 to release the water therein until the weight distribution is equalized. Various positions for  the compensating containers within the ribs are described..-.or. they may be in the form of pockets located in the face wall of the drum (Figs. 10, 11, not shown) which are filled by a jet of water or lye when the drum is rotating slowly during the washing operation.
Patent GB-183735-A (GB)
Title: Reinforced reversible stair tread
IPC: E04F11/16
Filed: 1921-08-31
Abstract: 183,735. Haward, C. A. April 31, 1921. Treads and wearing-surfaces.-A concrete stairtread comprises a rectangular frame a of angleiron braced by reinforcing-bars b, c disposed longitudinally and transversely of this frame and welded thereto at the ends and a nosing e screwed alternatively on to either side of the frame.
Patent GB-769506-A (GB)
Title: Snap action circuit breaker
IPC: H01H71/18
Filed: 1954-08-10
Abstract: 769,506. Thermal switches. SIGNALSTAT CORPORATION. Aug. 10, 1954 [Aug. 18, 1953], No. 23181/54. Class 38(5) A snap action circuit breaker similar to the snap action switch disclosed in copending Specification 762,045 and which utilises the snap action vane shown in Specification 761,713 [Group XXXII] and comprising a heat expansible element 54 is arranged so that the normal current flowing in the circuit:-battery 56, switch 57, vane mounting member 20, vane 10, heat expansible element 40, contacts 35, 25 to load 55-is insufficient to heat the heat expansible element 40 to allow the vane to operate, but a much greater current flowing in this circuit, due to a fault at the load 55 for example, will cause the element 40 to expand and allow the vane 10 to operate and open the contacts 25, 35. A high resistance condurctor 30 in heat transfer relationship with the element 40 and in shunt with the contacts 25, 35 now carries the fault current and heats up thus keeping the element 40 expanded and the contacts 25, 35 open until the fault is cleared. The introduction of the high resistance conductor 30 into circuit when the contacts 25, 35 open also reduces the fault current. Various arrangements of the heat expansible member relative to the high resistance conductor 30 are set out in Figs. 3 to 7 (not shown).
Patent GB-1472797-A (GB)
Title: Apparatus for automatically regulating the inclination of  motor vehicle headlamps
IPC: B60Q1/105
Filed: 1974-05-24
Abstract: 1472797 Regulating vehicle headlamps ROBERT BOSCH GmbH 24 May 1974 [25 May 1973] 23220/74 Addition to 1422166 Heading F4R [Also in Division F2] In an hydraulic arrangement for adjusting the inclination of motor vehicle headlamps of the type disclosed in the parent Specification 1,422,166, wherein there are two interdependent closed hydraulic systems each coupled to adjust a respective headlamp, as shown in Fig. 1, one of the systems having a filling valve 46, the other system having a pressure-relief valve 44 and the two systems being interconnected by a common short-circuit line 32 having a shut-off element 33, each of the filling valve 46, the pressure-relief valve 44 and the short-circuit line 32 comprising a resilient flexible tube 50, Fig. 2, serving as a fluid line coupled to a respective connecting passage 49 in the associated working or measuring cylinder and a tube clip 53 mounted on the associated cylinder for closing each tube. Fig. 2 shows the shortcircuit line interconnecting the working chambers 20, 21 of the working cylinder 18, and each end of the resilient tube 50 is mounted, e.g. by clamping or glueing, on connecting pieces 48 integrally moulded on the respective plastics covers 24 of each chamber. As shown in Fig. 4 the tube clip 53 comprises a strap 62 which by screwing down the bolt 58 flattens the tube 50 against a holding member 54 rigidly connected to the cylinder housing. The arrangement for the filling valve and pressure relief valve, Fig. 3 (not shown), is similar to that shown in Fig. 2 except that one end of the tube 50 is left unconnected. In an alternative short-circuit line arrangement, Fig. 5 (not shown), the connecting passages in the connecting pieces forming part of each chamber cover extend parallel to the axis of the working cylinder so that the resilient tubing joining the passages is not bent.
Patent GB-733126-A (GB)
Title: Improvement in puncture-sealing pneumatic article and method of making same
IPC: C09K3/10
Filed: 1953-08-24
Abstract: To eliminate plastic flow of a puncture sealant applied to at least the crown portion of an annular pneumatic envelope such as a tubeless tyre or inner tube, the sealant is made up of a reaction product of butyl rubber and from 0.2 to 2.5 parts by weight of a dimethylol phenol per 100 parts of butyl rubber.  The sealant which is effectively adhered to the inner surface of the tyre or tube, with or without an enclosing rubber cover strip, may be pre-reacted in a Banbury mixer together with 40 to 150 parts by weight of a suitable filler such as carbon black, clay, mica, precipitated hydrated silica, precipitated hydrated calcium silicate, zinc oxide, diatomaceous earth, wood flour or the like. To this mix is subsequently added about 10 to 50 parts of a non-migratory plasticizer such as mineral or rosin oil, polybutene or paracoumarone-indene type synthetic resins.  The dimethylol phenol used may be resinous such as 2,6-dimethylol-4-hydrocarbon phenol and the hydrocarbon group may comprise the lower alkyl groups such as octyl.  In an alternative method, unreacted butyl rubber and dimethylol phenol may be applied to an unvulcanized tyre or tube and the assembly vulcanized by heating which simultaneously effects reaction of the butyl rubber and the dimethylol phenol. Specification 733,088 is referred to.
Patent GB-656840-A (GB)
Title: Improvements in or relating to water-dispersable parasiticidal concentrates
Filed: 1947-08-22
Abstract: A D.D.T. concentrate for dilution with water is prepared by melting D.D.T. and an emulsifying agent with oil in a quantity insufficient to dissolve the D.D.T. present, at least a portion of the oil being a D.D.T. solvent oil, adding the mixture with agitation to a quantity of water between 25 and 69 per cent of the totalcconcentrate, the water having a temperature above 90 DEG C, and colloidizing and cooling the emulsion formed to give a suspension of D.D.T. particles. The solvent oil may be a mixture of alkylated aromatic oils such as polymethylated naphthalene, sesame oil or cyclohexanone, an insecticidal base oil such as refined white oil being optionally added.  Emusifying agents specified are alkylphenoxy polyethoxyethanols, hexitol anhydride partial long chain fatty acid esters or polyoxyalkylene derivatives thereof, partial ethers of aliphatic polyhydroxide compounds, and particularly 50 : 50 mixtures of hexitol anhydride fatty acids esters and alkylene oxide addition products.
Patent GB-877517-A (GB)
Title: Improvements relating to direct-viewing cathode-ray storage tubes
Inventor: TURNER GEORGE CHRISTIE
IPC: H05B33/12
Filed: 1959-07-08
Abstract: 877,517. Cathode-ray storage tubes; luminescent screens. FERRANTI Ltd. July 7, 1960 [July 8, 1959], No. 23401/59. Class 39(1). A direct-viewing cathode-ray storage tube is provided with a screen comprising a transparent electrically conductive layer 1, Fig. 1, on a transparent base 2, an electroluminescent layer 3, a ferro-electric layer 4 which becomes electrically conductive when subjected to electron bombardment, and an electrically conductive layer 5 on which the modulated electron beam is incident. By means of connections 6 and 7 to the electrically conductive layers the screen is connectable via a switch S, Fig. 2, to a D.C. voltage source and an A.C. source. For writing, switch S is moved to position S, so that a D.C. voltage is applied to the screen and the amount of potential V applied to capacitor C 1  (the layer 3) depends on the amount of conductivity induced in the capacitor C 2  (the layer 4) by the beam. When the whole screen has been scanned the switch is moved to S 2  whereby the image is stored until the potentials across the capacitors leak away. To view the stored image, an A.C. voltage is applied across the screen with the switch in position S 3  and in areas where induced conductivity has occurred a smaller A.C. field will be applied to the electroluminescent layer. The ferroelectric layer 4 may be of barium titanate and the layer 1 of gold.
Patent GB-796064-A (GB)
Title: Sensitive electrical control circuit using electrostrictive relay
IPC: G05B11/01
Filed: 1955-08-15
Abstract: 796,064. Photo-electric control of relays. ELECTRIC MACHINERY MFG. CO. Aug. 15, 1955 [Aug. 30, 1954], No. 23407/55. Class 40 (3). An electrostrictive relay 13, e.g. as described in Specification 773,888, [Group XXXVII], is connected as one of the capacitors in a voltage doubler circuit of which one of the rectifiers is a photo-cell 21. The relay thus operates when the photo-cell is illuminated, e.g. by car headlamps.
Patent GB-1523710-A (GB)
Title: Austenitic cast iron
IPC: C22C37/10
Filed: 1977-06-02
Abstract: 1523710 Austenitic cast iron MAHLE GmbH 2 June 1977 [18 June 1976] 23416/77 Heading C7A Austenitic cast iron consists of (in weight per cent) Ni above 6 to less than 8, C 1À5-4À0, Si 0À5-4À0, Mn 4À0-14À0, Cn 0À3-7À0 Cr below 2À0, Al 0À3-8À0, Ti 0À1-0À5 the balance Fe. In a modification the Ni content is 0À1-6À0, Mn 6-14, Cn 2-7 and Cr less than 0À3. The thermal expansion is 16-21 x 10<SP>-6</SP>/‹C in the range 20-100‹C, and requirements for other physical properties are also given.
Patent GB-750342-A (GB)
Title: Improvements in or relating to elastic staple element strip
IPC: B32B15/08
Filed: 1953-08-25
Abstract: <PICT:0750342/III/1> A staple element strip for a stapling machine comprises a plurality of aligned metal wire rectilinear elements interconnected by a thin, continuous, flexible, synthetic plastic layer disposed along the length of the strip, said layer having less inherent cohesive strength than the adhesive bond thereof to the elements of the strip.  To make a strip, wire W, Fig. 1, is cut into elements SE by blades N and fed by a reciprocating member E through a block 68 where an adhesive is applied from a tank T.  The adhesive may be butadiene acrylonitrile rubber modified with a phenolic resin and plasticized or modified in a ketone solvent solution, e.g. acetone or methyl ethyl ketone.  In a modification, the wire is precoated with either ethyl cellulose, butadiene styrene rubber, butadiene acrylonitrile rubber or polyvinyl chloride and a respective solvent acetone, toluene, methyl ethyl ketone or cyclohexanone is applied directly to the elements to fuse the coating of the elements together.  Thereafter the elements may pass through a dryer.  The elements S.E. may be of steel wire coated with brass, copper or zinc.
Patent GB-1313829-A (GB)
Title: Transistors and aproduction thereof
IPC: H01L29/735
Filed: 1970-05-15
Abstract: 1313829 Semi-conductor devices KOGYO GIJUTSUIN 23 April 1970 [18 Sept 1969] 23619/72 Divided out of 1289650 Heading H1K The active base region 33-1 of a lateral transistor is formed by the lateral thermal diffusion of impurities from an ion implanted region. The impurities for the emitter region 31 are introduced by ion implantation or thermal diffusion through the same window in the masking layer as that used for the base impurity implantation. The emitter impurities are of an element, such as As, which diffuses more slowly than the base impurity, e.g. B, so that the active base width is determined by the relative extents to which the two impurities diffuse laterally. An ion implanted or diffused collector contact region 2-1 may also be provided.
Patent GB-296198-A (GB)
Title: An improved method of measuring and determining the intensity of radiation especially of sources of ultra-violet light
IPC: G01J1/50
Filed: 1927-09-08
Abstract: 296,198. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 8, 1927. Comparison photometers. - A process of measuring the intensity of radiation sources of ultraviolet rays consists in exposing to irradiation a solution of a phototropic colouring matter, sensible in the region under examination, to which a small amount of substance counteracting the photochemical colour change has been added and determining the degree of change of colour by comparison with a scale of standard solutions of the colouring matter formed by irradiation in a non-phototropic form. Examples are given utilizing leucocyanides, carbinols or sulphurous compounds of basic colouring matters as phototropic colouring matters. The substance used to counteract the photochemical colour change is one furnishing an ion equal to that formed by irradiation of the phototropic colouring matter.
Patent GB-1105576-A (GB)
Title: Production of inorganic self-luminescent phospor materials
IPC: C01B4/00
Filed: 1965-06-03
Abstract: An inorganic self-luminous phosphor is produced by heating the phosphor, of particle size 1 to 7 or 10 microns, for instance, but preferably 3 microns or less, above its vaporization temperature, intimately mixing the resulting phosphor vapour with tritium gas at a temperature above said vaporization temperature and condensing the resultant mixture.  Phosphors mentioned are zinc sulphide, cadmium sulphide, zinc orthosilicate, zinc cadmium sulphide, zinc orthogermanate and zinc phosphate activated by up to 1% by wt. copper, silver and manganese.  Heating temperatures may exceed 2000 DEG  C. while in a number of preparations examples described, ZnS is heated to temperatures ranging from 1200 DEG  to 1250 DEG  C. for 1 to 3 hours and overnight while 1000 DEG  C. is mentioned as sublimation temperature for CdS; the pressure is not critical and may for instance range from "vacuum" to atmospheric.  The absence of any intermediate triated vehicle makes the phosphor particularly suitable for paint compositions and also watch dials, buttons, personnel markers and the like.  A prior art method refers to incorporation of tritium directly into organic molecules such as alcohols, paraffinic acids having chain lengths of 12-20 carbon atoms such as hexadecanol or stearic acid, the inorganic phosphor being suspended in an organic solvent containing the same and becoming coated by evaporation of solvent.  Incorporation of tritium into Ti or Zr and subsequent division of same into fine particles and addition to luminous material is also mentioned.
Patent GB-1425026-A (GB)
Title: Capacitors
IPC: H01G4/38
Filed: 1972-05-19
Abstract: 1425026 Capacitors BICC Ltd 18 May 1973 [19 May 1972] 23762/72 Heading H1M A capacitor comprises strips of dielectric material and two electrodes wound together into a roll and a plurality of connection tabs arranged in groups, each group comprising two tabs, e.g. 1, 2 that contact the same electrode at positions spaced by one turn of the winding, and one tab, e.g. 3, that contacts the other electrode at a location along the length of the winding between the first two tabs. Preferably each electrode is contacted by an equal number of tabs, e.g. the succeeding group of tabs can comprise tabs 4, 5 contacting the electrode which was only contacted by tab 3, and tab 6 contacting the electrode which was contacted by tabs 1, 2. The tabs of a group preferably lie diametrically opposite each other in a cylindrical roll, or, in the case of a flattened roll, they are aligned as shown, though not necessarily centrally. The arrangement of tabs permits rapid discharge of the capacitor, as well as aiding series and/or parallel connection of such capacitors in banks (Figs 4 to 6, not shown).
Patent GB-258904-A (GB)
Title: Improvements in electrical protective arrangements
IPC: G01R29/16
Filed: 1926-09-27
Abstract: 258,904. Metropolitan Vickers Electrical Co, Ltd., (Assignees of Fortescue C. Le G.). Sept. 26, 1925, [Convention date]. Cut-out arrangements. - A differential-relay protective arrangement for electric translating devices (for example, rotary or stationary transformers) is differentially responsive to the respective values of a balanced rotational phasesequence component of the input and output currents. This component may be a positive-, negative- or zero-phase-sequence component. Means for segregating symmetrical components, of an unbalanced polyphase system are described in Specifications 159,147 and 161,167. In the arrangement shown, a differential induction relay 4 serves to trip a circuit-breaker 5 in the supply side when it is moved either way from a central position. The elements 6, 7 of the relay are energized in accordance with a negativephase-sequence component of the currents traversing the input and output circuits respectively. These compounds are obtained by connecting current transformers 11, 12 in two of the phases to two equal impedances 13, 14 and connecting the elements of the relay across the two impedances as shown. The impedance 14 may, in the example shown, be a resistance whereas the other is made up of resistance and reactance so that the voltage across it leads the current by 60‹. The two impedances 13, 14 are so connected to the polyphase circuit that the voltages across them are exactly opposite in phase under balanced conditions. In the event of a fault in any of the windings of the device 1 the relay will operate due to the resulting unbalancing of the negative-phase-sequence components but no operation is produced by a fault on the output circuit as this produces no unbalancing of components. In a modification in which circuitbreakers on either side of a transformer are operated in the event of any form of fault, the circuit-breakers are controlled by a zero-phasesequence differential relay energized by the vectorial sum of the three currents in current transformers in the three phases, a negative phase-sequence differential relay energized as described for the relay 4 above, and by overload-, negative- and zero-phase-sequence relays of non- differential type.