baber/WOPTO huggingface dataset:
Patent GB-229708-A (GB)
Title: Improvements in or relating to electrically driven fans
IPC: F04D25/08
Filed: 1925-02-23
Abstract: 229,708. Soc. Rateau. Feb. 23, 1924, [Convention date]. Screw fan apparatus.-Fan blades e are carried by the rotor d secured to the shaft c which also carries the rotor b of the electric driving motor. The stator a of the motor is supported in a shell g which is surrounded by the diffuser h of the fan and thereby cooled. The diffuser has rectifying guides i and is bounded by a casing which may be connected directly to the discharge conduit. Auxiliary blades f on the rotor d draw air through passages in the motor and the wall n deflects it towards the main blades e.
Patent GB-1464898-A (GB)
Title: Storage stabilisation of sodium chlorite
Inventor: MOLLARD PAUL
IPC: C01B11/10
Filed: 1974-02-04
Abstract: 1464898 Stabilization of sodium chlorite PRODUITS CHIMIQUES UGINE KUHLMANN 4 Feb 1974 [5 Feb 1973] 05065/74 Heading C1A A process for the stabilization of sodium chlorite comprises adding to sodium chlorite a salt which is chemically inert towards the sodium chlorite, and which has at least one hydrate having a suitable melting point (50‹ C. or more) in an amount such that the said salt can bind an amount of water at least equal to 5%, by weight of the chlorite which is to be stabilized, after any water not capable of being bound to the salt has been removed, the chlorite and salt being used in a form such that there is present at least 5% of water by weight, based on the sodium chlorite, and if necessary drying the product to reduce the amount of water not bound by the stabilizing salt to not more than about 4À7% based on sodium chlorite. A mixture of suitable salts may also be used. Suitable stabilizing salts are sodium phosphate, metaborate, hypochlorite, arsenate pyrophosphate and carbonate, potassium pyrophosphate, sodium potassium carbonate, schonite (K 2 Mg 2 (SO 4 ) 2 ), magnesium sulphate and chloride, and calcium chloride.
Patent GB-1497241-A (GB)
Title: Constant velocity ratio universal joint and method of assembling the same
IPC: F16D3/226
Filed: 1976-02-10
Abstract: 1497241 Universal joints NISSAN MOTOR CO Ltd 10 Feb 1976 [19 Feb 1975] 05067/76 Heading F2U In a constant velocity ratio universal joint of known type, having torque-transmitting balls 14 engaged in grooves 22, 26 formed in both an inner member 10 and an outer member 12, and having a cage 28 whose part-spherical surfaces 32, 34 engage respectively surfaces 24, 20 of the inner and outer members, the cage 28 is provided with two diametrically opposed notches 40 of such a shape and size that, in the course of assembly, the inner member 10 when its axis is turned at right angles to the cage axis can be inserted into the cage and subsequently rotated until the axes are aligned, when the inner member becomes captive within the cage. Where the cage construction is such that it has one axial end 36 which is of thicker cross-section than the other end 38, the slots 40 are cut into the thicker end 36.
Patent GB-1424611-A (GB)
Title: Pharmaceutical compositions
IPC: A61P25/20
Filed: 1973-02-01
Abstract: 1424611 Cytostatic &c medicines CRC COMPAGNIA DI RICERCA CHIMICA SA 1 Feb 1973 [1 Feb 1972] 5076/73 Heading A5B [Also in Division C2] Pharmaceutical preparations showing cytostatic, cancer inhibiting and tranquilizing actions contain (I) (including salts thereof) as active ingredient where X is an anion. Administration is orally, parenterally or by inhalation.
Patent GB-129944-A (GB)
Title: Improvements in Metal Boxes.
Inventor: HOWSE GIUSEPPE MAJONI
IPC: B65D43/02
Filed: 1919-03-01
Abstract: 129,944. Howse, G. M. March 1, 1919. Lids and covers.- A metal box has a reduced upper part and a shoulder; the lid b fits down on the top of the box, leaving a space to facilitate opening by a coin &c. between the lower part of the flange b<1> and the shoulder. The flange b<1> is strengthened by turning up the lower edge of the metal so that the two thicknesses b<1>, b<2>, are in close contact.
Patent GB-564220-A (GB)
Title: Improvements relating to honey-comb foundations
IPC: A01K47/02
Filed: 1943-03-31
Abstract: 564,220. Bee - keepers' appliances. DADANT, H. C., and GROUT, R. A. March 31, 1943, No. 5170. [Class 5 (ii)] Honeycomb foundations comprising wax sheets 15 with embedded wires 17 and supported in a frame 10 are provided around one edge of each sheet with an anchoring bar 21 with an offset portion 24. The bar 21 is seated in a rabbeted portion of the bar 10 and secured by a retaining strip 22 which is slotted or recessed to receive the offset part 24. Either the bent part or one of the limbs of the bar 21 may form the offset portion, and the strip 22 may be recessed either at its upper surface or slotted between its surfaces. The embedded wires may extend into the offset portions, or may be headed to fit within the bend of the bar 21.
Patent GB-355209-A (GB)
IPC: B03D1/16
Filed: 1930-02-17
Abstract: 355,209. Concentrating ores; agitating-devices. GIBBS, R. C., Abford House, Wilton Road, Victoria, London. Feb. 17, 1930, No. 5287. Convention date, Feb. 16, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 82 (ii) and 86.] An agitator for use in flotation apparatus comprises two side discs 10, 11 between which are arranged a number of curved blades 14, spaced from the discs by members 12, 13, Fig. 2, the discs and blades being mounted on a rotating shaft 18. The blades have raised edges or side walls 16,17 diminishing in height towards the outer end of the blades giving the blades a troughshaped cross section. Baffles 20 may be arranged around the periphery of the agitator to intercept and break up the stream of pulp. Apertures may be formed in the discs through which extra air may be supplied to the pulp.
Patent GB-1478091-A (GB)
Title: N-oxides of bis-basic tricyclic ethers
IPC: C07D311/82
Filed: 1975-02-07
Abstract: 1478091 N-oxides of bis-basic tricyclic ethers RICHARDSON-MERRELL Inc 7 Feb 1975 [8 March 1974] 5381/75 Heading C2C] Novel compounds (I) (including salts and hydrates thereof) wherein Z is oxygen or H 2 ; R 1  is selected from a sigma bond, oxygen and when Z is oxygen the carbonyl radical; A is the ethylene or trimethylene radical; R 2  and R 3  are each selected from lower alkyl having from one to three carbon atoms and when taken together with the nitrogen atom to which they are attached represent the pyrrolidinyl, piperidino and morpholino radical; R 4  is selected from hydrogen and the radicals (IIa) and (IIIa) with the proviso that one and only one such R 4  group is hydrogen; are made by oxidizing the corresponding amines. Pharmaceutical preparations having antiviral action contain (I) as active ingredient. Administration may be orally, parenterally or topically.
Patent GB-704544-A (GB)
Title: Improvements in artificial limbs
IPC: A61F2/66
Filed: 1951-03-06
Abstract: 704,544. Artificial limbs. BLATCHFORD, W. A. D. Feb. 11, 1952 [March 6, 1951], No. 5392/51. Class 81(2) In an artificial foot, for use after a Syme's amputation, the base plate 1 has a bearing housing 4 for the ankle joint riveted or welded to it and has side members 2, 3 either formed in one piece with the base plate or secured to it in a plane parallel to it by lap welding, so that they can be bent upwards to the desired position for engagement with the shin portion.
Patent GB-963157-A (GB)
Title: Dewatering of slurries and particularly of sewage sludge
IPC: C02F11/00
Filed: 1962-02-13
Abstract: Aqueous slurries of flocculated or agglomerated amorphous organic solids such as sewage sludges are treated to facilitate mechanical dewatering by treatment with at least one anionic polymer and at least one cationic polymer added successively in optional order, the polymers being organic, water-soluble, and of sufficiently high molecular weight to avoid redispersing the flocculated or agglomerated solids in the slurry.  The polymer added first should have an ionic charge corresponding to the prevailing or net charge of the organic solids in the slurry.  The cationic polymer is generally an amine or quaternary ammonium salt and the anionic polymer generally has a plurality of sulphonate or carboxylic groups. A large number of suitable polymers are exemplified.
Patent GB-1020908-A (GB)
Title: Adhesive compositions
Inventor: COOK JOHN MAITLAND
IPC: C08J5/12
Filed: 1964-02-10
Abstract: 1,020,908. Laminates. MONSANTO CHEMICALS Ltd. Dec. 11, 1964 [Feb. 10, 1964], No. 5462/62. Heading B5N. A process for bonding the surface of a biaxially oriented styrene polymer to another such surface comprises using as adhesive a composition comprising more than 50% by volume of cyclohexane or methycyclohexane and less than 50% by volume of a powerful solvent for the styrene polymer. Specified solvents are benzene, toluene, ethyl benzene, diethylbenzene, xylene, monoamyl benzene, acetone, cyclohexanone, methyl ethyl ketone, ethyl acetate, isopropyl acetate, butyl acetate, amyl acetate, chloroform, carbon tetrachloride, methylene dichloride, dichloroethylene, trichloroethylene, perchloroethylene, or a mixture thereof. The adhesive may also contain up to 10% by weight of a styrene polymer and up to 30% by weight of a plasticizer for the styrene polymer to be bonded, e.g. dibutyl or dioctyl phthalate, dicresyl phosphate or a chlorinated biphenyl. Specified styrene polymers are polystyrene alone or in admixture with natural or synthetic rubber and copolymers of styrene with methyl methacrylate or acrylonitrile.
Patent GB-257501-A (GB)
Title: Improvements in and relating to colour-photography
IPC: G03C7/06
Filed: 1925-05-26
Abstract: 257,501. Cook, E. S. May 26,1925. Colour photography, screen plates for. - Relates to sensitive photographic or kinematograph material comprising a light-sensitive layer associated with a screen of multi-coloured elements, wherein the colouring matter of the screen is incorporated into the substance of the emulsion before this is applied to the support, and consists in applying coloured emulsions to the support to produce a regular pattern of colours. According to one method of manufacture wherein an emulsion is prepared by mixing together aqueous gelatin solutions of silver nitrate and potassium bromide, the dye or dyes to form the coloured elements are incorporated in the gelatin solutions before the silver nitrate and potassium bromide are added thereto. A separate coloured emulsion is so prepared for each colour of the screen, and the emulsions are deposited upon a film or other support for example in juxtaposed lines as described in Specification 257,502. Pinatype dyes may be employed. The film support may, before the deposition thereon of the coloured emulsions, be thinly coated with a mixture of gelatin and amyl acetate. To increase its sensitiveness, the multi-coloured emulsion layer may receive a short immersion in a mixture of silver nitrate and glacial acetic acid. Specification 19554/10 also is referred to.
Patent GB-196145-A (GB)
Title: Improvements in belt fasteners
IPC: F16G3/06
Filed: 1922-02-25
Abstract: 196,145. Billau, J. E. Feb. 25, 1922. Belt fastenings of the kind adapted to be placed between turned-up belt ends, with lugs or arms passing through slots in the belt and secured by transverse pins &c. A substantially cruciform member has pairs of arms b, c, Fig. 5, of different lengths to increase the adaptability of the device to belts of various thicknesses. According to the thickness of the belt, the longer or shorter arms c, Fig. 3, are passed through slots in the turnedup belt ends f, the tread of the belt bearing upon the other pair of arms b. This connection is completed by transverse securing pins or bars e of rectangular or circular cross-section inserted into elongated slots b in the arms of a number of cruciform members arranged across the width of the belt.
Patent GB-669409-A (GB)
Title: Improvements in apparatus for the measurement of rate-of-change of frequency of alternating currents
IPC: H02J3/08
Filed: 1949-03-01
Abstract: 669,409. Frequency meters. BRADSHAW, E., and METROPOLITAN VICKERS ELECTRICAL CO., Ltd. Feb. 23, 1950 [March 1, 1949], No. 5604/49. Class 37. Apparatus for measuring rate of change of frequency comprises a frequency source energizing a frequency sensitive self-balancing bridge network (which may be a parallel T- impedance network) to produce an output which is zero at a datum frequency and dependent in phase and amplitude on the sense and magnitude of frequency deviations from datum. The output, together with a reference voltage direct from the bridge input, is applied to a discriminator producing a D.C. signal which after amplification drives a split field servomotor to readjust the network for zero output and drive a series of rotary potential dividers, whose output representing frequency changes are sequentially connected at fixed time intervals to an indicating or recording instrument, calibrated to show the mean rate of frequency change over the successive time intervals. The bridge network may be energized through a motor alternator frequency multiplier. In Fig. 3 a synchronous motor driven from the frequency source f1 is coupled through a flywheel F and a flexible coupling E to an alternator B generating a frequency f2, e.g. 40 f1, which is freed from harmonics by a tuned band-pass amplifier N and supplied to a condenser-resistance T-network C (Fig. 2A), such that its output is zero when and varies in amplitude and phase angle according to the magnitude and sense of deviations from the datum frequency. The output passes through a further tuned amplifier L to a discriminator .J (Fig. 4, not shown), which is also supplied with a reference voltage from the alternator output through a 90 degrees phase-shift network K and an identical amplifier M, to produce a D.C. signal, representing the frequency deviations in magnitude and sense. The signal is applied through a 90 degrees phase-shift circuit and an optional phase advancing stabilizing circuit (Fig. 5, not shown), to the input of a " Velodyne " D.C. amplifier D (Fig. 1), provided with a diode V4 preventing over-running of V2 on cut-off of V1 by excessive input signals (Fig. 1), which controls a split-field D.C. servomotor D readjusting the condensers C, 2C, of the T- network for zero output and driving six successively connected rotary centre-tapped potential divider units, whose outputs are cyclically selected by solenoid and cam-operated time switches so that each potential divider output varies for 120 seconds with the input frequency, is connected for 30 seconds to an indicator recorder calibrated in rate-of frequency variation over the 120 second period, and is then reset during the remaining 30 seconds of the cycle by an external motor, whereby an indication of mean rate of frequency variation is obtained every 30 seconds. A pointer operated by the servomotor shaft may indicate the instantaneous frequency. The T-network may also be tuned by variable resistances or inductances.
Patent GB-608416-A (GB)
Title: Improvements in or relating to wireless receiving or transmitting apparatus
IPC: H01F27/00
Filed: 1946-02-22
Abstract: 608,416. Radio apparatus. IITJFFETT, Ltd., S. H., and LEBAR, L. C. Feb. 22, 1946, No. 6612. [Class 40 (v)] Wireless transmitting or receiving apparatus comprises a carriage slidably mounted on a chassis the carriage having at least one coil fixed to it which can move into different positions relative to a cooperating part mounted in a fixed position on the chassis, the carriage being provided with a rack which engages with a toothed wheel. The apparatus is particularly useful for coil changing in a wireless receiver or transmitter or for varying the mutual coupling between two coils. Figs. 1 and 2 show the application to wave-band switching in a wireless receiver. Platform 4 slides in grooves in a pair of spaced guides 5, 6 in a chassis 7 on which apparatus is mounted, contacts 9 project through an opening 8 in the platform and to these contacts, coils 1 are connected. Brush contacts 2 mounted on the chassis 7 enable contact to be made with any given coil by sliding the platform 4 in the grooves of the chassis. Movement of the platform is controlled by the racks 10, 15 and pinions 11, 14 part of the periphery of the pinion 11 preferably being notched as shown at 17 so that its exact position may be determined by a locating spring 18. In a modification, Fig. 3 (not shown), the invention is used to vary the coupling between two coils, the platform being preferably in the form of a blade spring.
Patent GB-941577-A (GB)
Title: Improvements in or relating to stock-distributor assemblies for paper-making machines
IPC: D21F1/02
Filed: 1960-02-17
Abstract: 941,577. Flow-boxes of paper-making machines. BELOIT IRON WORKS. Feb. 17, 1960 [July 29, 1959], No. 5647/60. Heading D2A. An assembly for distributing stock from a conduit to a flow-box in a paper-machine comprises a header which is connected to the conduit, extends the full width of the flow-box and has a progressively varying cross-sectional area along its length to provide substantially equal stock inputs to each of a plurality of outlet ducts extending upwards from the header in vertical planes parallel to the centre-line of the flow-box to flow stock from the header to a blending chamber extending the full width of the flow-box. The outlet ducts are of uniform substantially circular cross-section and have a ratio of length to mean diameter within the range 7:1 to 25:1. As shown, pulp from a conduit 11 flows to a header 13 supplying a series of risers 14 closely spaced across the machine, providing high-speed flow to a blending chamber 15 and thence through a throat 16 and a deceleration conduit 17, the pulp thus changing its direction of flow by at least 90 degrees twice before entering the flowbox of a Fourdrinier papermaking machine, via a rectifier roll 21. The pulp in the flow-box flows to the wire-cloth through a rectifier roll 21b, and through another 21a at the slice outlet S. White water from the wire pit 30 may be mixed with fresh pulp, centrifugally cleaned, and supplied to the wider end of the header 13 which may be of frusto-conical form, and pulp may be recirculated from the narrower end, the volume recirculated being controlled according to the pressure drop in the header 13. The wall 23c is formed with an upturned flange 23d bolted to the wall 24 by bolts 25 received in vertical slots 24a, so that the cross-sectional area of the throat 16 may be adjusted. Specification 854, 529 is referred to.
Patent GB-176356-A (GB)
Title: Improvements in progressive change-speed gears
IPC: F16H29/14
Filed: 1922-02-27
Abstract: 176,356. Henriod, C. E. March 5, 1921, [Convention date]. Variable-speed epicyclic gearing comprises planet gears p carried by a driving fly - wheel a and adapted to be intermittently locked when oscillating so as to impart a variable or reversed drive to a sun gear f on a driven shaft g. A non- revoluble ring e has a circular groove e' engaged by pins d upon the gears p so that, as the ring is moved to an eccentric position, the gears are oscillated with increasing amplitude. The ring e has a second groove o engaged by bosses n projecting from plates l situated alongside the gears. The pins d project through holes in the bosses n. Swells o<1> upon the groove o have the effect of sliding the plates l relatively to the gears p for a fraction of a revolution. Pins m on the plates l coact with bell-crank levers i carried by the gears in such a way as to rock these levers and so bring dogs k into engagement with teeth x on the gears p and so lock the gears for a part of a revolution as they oscillate in one direction. This drives the gear f. In a modification, the locking is effected by jamming an eccentrically-mounted toothed wheel against a coacting toothed wheel. The Specification as open to inspection under Sect. 91 (3) (a) was in the form of a patent of addition on Specification 154,904.
Patent GB-956348-A (GB)
Title: Method of and apparatus for purifying condensate from a condensing turbine
IPC: F22D11/00
Filed: 1963-02-13
Abstract: 956,348. Feedwater supply systems. H. HESSELBROCK. Feb. 13, 1963 [Feb. 17, 1962], No. 5842/63. Heading F4A. In a method of purifying condensate from a condensing turbine, condensate produced by the adiabatic expansion of steam in the wet steam zone of the turbine and containing the major portion of the impurities is separated from the steam, collected and purified without prior mixing with the main bulk of condensate obtained in the condenser, and then returned to the main condensate circuit from the condenser. Condensate formed in the end stages of the turbine, after separation and collection, is cooled to a temperature suitable for the ion exchange mass, and then purified in a mixed bed filter which is substantially smaller than that which would be required for the purification of the total condensate in the hot well. In the apparatus shown, the condensate formed between the blades of the turbine housing 10 is separated and collected from various expansion stages 11 and the steam bleed pipes 12 and is then fed by pipes 13 to a small anion and cation exchanger 14 before joining the main condensate stream from the condenser 15.
Patent GB-858592-A (GB)
Title: Method of and apparatus for storing liquid ozone
Inventor: ARMOND JOHN WALTER
IPC: F17C3/02
Filed: 1958-02-24
Abstract: 858,592. Storing liquefied gases. BRITISH OXYGEN RESEARCH & DEVELOPMENT Ltd. Feb. 19, 1959 [Feb. 24, 1958], No. 5889/58. Class 8(2). Liquid ozone is stored by mixing the ozone with liquid oxygen and maintaining the temperature of the mixture at a temperature not substantially above -183‹C. in a vessel immersed in liquid oxygen. The mixture is stored in a vessel 1 which is housed in an insulated outer container 3 spaced from it. The mixture is fed to the container through a conduit 7 at the same time as liquid oxygen is fed to the space 4 through a conduit 5. Similar outlet conduits 9 and 12 are provided. A sinker 17 measures the density of the mixture in the vessel 1 and when this indicates an enrichment of the ozone in the mixture further liquid oxygen is admitted to the vessel 1 from the space 4 by opening a valve 23a. Gaseous oxygen may be admitted to the vessel by opening valve 22a to stir the contents. A device 21 may be provided to measure the mixture level in the vessel and this may be of the type described in Specification 838,308. A level indicator 24 is provided which measures the pressure difference between the liquid and gaseous phase of the oxygen in the space 4 since for safe storage the vessel 1 should be covered by liquid oxygen. Specification 828,556 also is referred to.
Patent GB-124438-A (GB)
Title: Improved Electric Furnace for Heating, Annealing or Melting Metallic Materials.
IPC: H05B11/00
Filed: 1919-03-10
Abstract: 124,438. Stabilimenti Biak. Ing. A. Pouchain. March 9, 1918, [Convention date]. Induction and resistance furnaces.-An induction and resistance furnace for annealing and melting metals has sections 1 of magnetic material with insulated resistance rods 5 mounted therein. The sections are flanged and bolted together, and may be spaced from each other by refractory material or by air-gaps 7, Fig. 2. Each section may be in two parts separated by an airgap 6, Fig. 1, or by insulating material, the width of which may be adjustable to vary the power factor. The circuits are arranged to neutralize the mutual induction. The arrangement is stated to avoid deformation due to heat.
Patent GB-192942-A (GB)
Title: Improvements in trays for tobacco ash
IPC: A24F19/14
Filed: 1922-03-01
Abstract: 192,942. Williams, E. W. D. C. March 1, 1922. No Patent granted (Sealing fee not paid). Ash-trays.-Damp pads d of asbestos wool or absorbent fireproof material are provided to extinguish cigars and cigarettes and may be inserted in flanged cups, e which serve also as feet.