baber/WOPTO huggingface dataset:
Patent GB-1239785-A (GB)
Title: Automatic steering control system
Inventor: MIROUX JEAN ALCIDE ROBERT
IPC: G05D1/02
Filed: 1968-10-09
Abstract: 1,239,785. Automatic steering control. ASSOCIATION DES OUVRIERS EN INSTRUMENTS DE PRECISION. Oct.9, 1968 [Oct. 20, 1967], No.47876/68. Heading G3R. A relay-actuated reversible automatic steering motor is controlled by a differential amplifier to one input of which is applied a potentiometerderived voltage proportional to course error and to the other input of which is applied the combined outputs of a follow-up potentiometer and a helmoperated potentiometer connected in parallel and supplied through equal series resistors. In a system for steering a ship, Fig.2 a gyro-compass repeater adjusts a potentiometer 17 on deviation from a set course so that a direct voltage change is applied through a low-pass filter circuit F 1 , a transistor impedance matching circuit S 2 , and a high-pass filter circuit F 2 , to a biased differential transistor amplifier 40 so that if the deviation exceeds a predetermined value in either sense, a relay RB or RT is energized to operate areversible steering motor in the appropriate sense to correct the deviation. The filter circuits F 1  and F 2  are adjustable to permit a critically damped response to be obtained for any given loading of the ship. The output of a follow-up potentiometer 13 operated by the steering is applied as negative feedback through a further transistor impedance matching circuit S 1  to the other input of differential amplifier 40. The output of a potentiometer 23 connected in parallel with potentiometer 13 is added to the feedback voltage, and potentiometer 23 is adjusted to cancel the effect of any offset of the steering, to counter crosswind for example, when on the desired course. Initial setting of potentiometer 23 is facilitated by setting switches 11 to position V to disconnect the course deviation signal and the relay control circuits. The proportional band may be set by adjustable resistors Q 1 , Q 2  in series with potentiometers 13, 23. Course deviation signals are limited in each sense by a circuit 30 biased by the voltages from potentiometers 26, 27 also supplied in series with resistors Q 1 , Q 2 . Operation of switches 11 to position M replaces the course deviation signal by a fixed voltage from a potentiometer 66, 67 and permits manual control of steering by potentiometer 23 or another potentiometer substituted for it.
Patent GB-1372328-A (GB)
Title: Balance wheel for an electric timepiece
IPC: G04C3/06
Filed: 1972-10-19
Abstract: 1372328 Electric timepieces DAINI SEIKOSHA KK 19 Oct 1972 [26 Nov 1971] 48219/72 Heading G3T A balance wheel for an electric timepiece comprises a balance staff 1 supporting two spaced apart parallel plates 2, 3 and 4, 5, 6 each containing magnetic and non-magnetic parts including permanent magnets 7, 8. The upper plate 2, 3 consists of a non-magnetic member 2 secured to staff 1 and supporting a magnetic disc 3, the two parts being fastened together by pins (9, 10, 11) and two magnets 7 being magnetically attached to the disc 3 and located by recesses (2d, 2e) in member 2. The lower plate 4, 5, 6 has a non- magnetic disc 4 to which are attached by pins (15, 16) a counter-balance weight 6 and by pins (17, 18) a magnetic yoke plate 5. Magnets 8 are magnetically attached to plate 5, being located by holes (4d, 4e) in disc 4. Magnets 7, 8 face each other across an air gap, in which a fixed coil assembly (not shown) can be mounted, and together with disc 3 and yoke plate 5 form a magnetic circuit.
Patent GB-981052-A (GB)
Title: Method and arrangement of producing voltages of different frequencies
IPC: H03B19/14
Filed: 1962-12-21
Abstract: 981,052. Tunnel diode harmonic generators; keying carrier frequencies. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Dec. 21, 1962 [Dec. 23, 1961], No. 48281/62. Headings H3R and H3T. Method of producing voltages of different frequencies with a frequency spacing of # 1  characterized in that an oscillatory circuit 2, 3 tuned to frequency # 2  has its attenuation decreased periodically with the aid of a tunnel diode 1 which is driven at the frequeney # 1  and biased at a suitable working point so that during a portion of the period of the frequency # 1  oscillation takes place and during the other portion it is substantially short-circuited. The frequeney # 1  may be crystal controlled and frequency # 2  is absent from the output spectrum, Fig. 4. The choice of frequency # 2  and the keying ratio are used to set the harmonic energy in the desired frequency band.
Patent GB-1148537-A (GB)
Title: Improvements in and relating to photoconductive insulating material
IPC: G03G5/087
Filed: 1966-10-28
Abstract: 1,148,537. Photoconductive materials. FUJI SHASHIN FILM K.K. 28 Oct., 1966 [30 Oct., 1965], No. 48507/66. Heading H1K. A photo-conductive insulating material consists of an insulating binder containing a cadmium sulphide or cadmium sulphide-carbonate photoconductor and a metal iodide. The material is mainly used for electrophotography and may also be used in photo-cells, light-image amplifiers, vidicons, X-ray-to-visible converters &c. The sulphide-carbonate photoconductor may be made by mixing an aqueous Cd<SP>++</SP> solution with an aqueous solution containing S<SP>11</SP> and CO 3 11, or by mixing aqueous CO 3 <SP>11</SP> with aqueous Cd<SP>+</SP><SP>+</SP> in the presence of H 2 S and baking the resultant precipitate. Suitable cadmium salts are the halide, sulphate, and nitrate. Suitable carbonates are those of sodium, potassium and ammonium. The photoconductor powder may be impregnated with an aqueous or organic solution of the metal iodide and dried, or the heated powder may be exposed to the vapour of the metal iodide. Alternatively the metal iodide may be dissolved in the binder solution in which the photoconductor is then dispersed. Iodides of the following metals are suitable: Li, Mg, Be, Bi, W, Cs, Sr, Sn, K, Cd, Sb, Hg, Al, Zn and Pb. Suitable binders are synthetic resins such as thermosetting acrylics. Low melting point inorganic glasses may instead be used. Substrates described are of aluminium.
Patent GB-1316297-A (GB)
Title: Containers for liquids
IPC: B65D1/16
Filed: 1970-10-13
Abstract: 1316297 Liquid containers H WARNECKE [trading as TUWA-PLASTIC DR HERBERT WARNECKE ERZEVGUNG VON KTWSTSTOFFARTIKELN 13 Oct 1970 [17 Oct 1969 20 April 1970] 48512/70 Headings B8C and B8D A thermoplastics can for liquids such as engine oil comprises a thin and flexible body 1 having a wall thickness of not more than 0À5 mm. and a body which is circular or polygonal and approximating to a circular cross-section, a central top face opening 4 provided with a rim 3 adapted to be sealed to a heat-sealable foil, an elevated border 5 (12, Figs. 4, 5, 7) and a frusto-conical portion 2. The rim 3 and the upper part of the portion 2 may be raised above the border (12) prior to filling (Fig. 4) but depressed to be generally horizontal below the border after filling to strengthen the top face and place the contents under pressure. This is achieved by providing the portion 2 with a wall thickness which is at least twice that of the body wall and utilizing the heat and pressure required to apply the cover foil to heat to a plastic state the rim 3 and at least part of the portion 2 and then to chill the rim 3 and portion 2 after appropriate downward pressing. The wall thickness of the portion 2 may decrease from the rim 3 to the border (12). Top face channels (6, Figs. 2, 3, 5, 7) or severable teats(17 Figs. 4, 5, 8) may form pouring spouts. For stacking, the bottom 10 of the can is recessed and the depressions 6 co-operate with noses provided at the bottom of the upper can. A bottom depression (19, Fig. 6) may be provided for aligning the can during printing. The can may be provided with a bottom frusto-conical portion 11 so that it may be blow-moulded in a split mould and may be formed of polyethylene or polypropylene.
Patent GB-1190398-A (GB)
Title: Direct Record Image Discharge Tube
IPC: H01J31/06
Filed: 1967-10-25
Abstract: 1,190,398. Image converter tubes. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 25 Oct., 1967 [2 Nov., 1966], No. 48581/67. Heading H1D. In a discharge tube for providing a direct record of an optical image, the corresponding electron image produced by the photocathode 2 is focused and accelerated through the end window 6, formed of an electron-beam-pervious film upon a support member having a plurality of fine apertures, directly on to the recording medium 9. The photocathode is cooled by its thermally conductive support 11, which is mounted in a dewar flask 12 of liquid nitrogen, and focused and accelerated, respectively, by the coil 10 and the resistive helix 4 provided on the tube envelope. The window 6 is formed by an aluminium film 17 mounted upon a multiapertured support member 7 (and see Fig. 2, not shown). The recording medium 9 may be silver halide photographic film, a polymer, a dye stuff, or an electrostatic photographic material. For increased sensitivity, the tube may include a secondary electron emitting member 13 formed of adjacent layers of aluminium, alumina, and porous potassium chloride. In a modified arrangement, the apertures in window member 7 may be disposed in a line, across which the image is traversed by a deflection coil 18.
Patent GB-990100-A (GB)
Title: Superconductive circuits
IPC: G11C11/44
Filed: 1962-12-28
Abstract: 990,100. Superconducting circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 28, 1962 [Dec. 28, 1961], No. 48745/62. Heading H3B. A superconductive circuit comprising two parallel branches includes at least one cryotron K18, K20 in each branch having a control conductor C18A and C20A in the other circuit so that the current supplied by source 10 is itself insufficient to drive either gate conductor 518, 520 resistive but the constant current which may be supplied to further control conductors C18B, C20B is always sufficient to drive its associated gate conductor resistive in conjunction with the current from source 10. The cryotrons used in the embodiments described are " in-line " cryotrons such that a current Is flowing in the further control conductor C18B, C20B drives the gate conductor G18, G20 resistive however the current Is from source 10 splits between the two paralell branches as the same current in either the gate conductor G18, G20 or the control conductor C18A, C18B produces the same magnetic field around the gate conductor. Such a cryotron switches faster than other cryotrons as the change of current from one branch to the other produces no change of flux in the cryotrons and thus there is little inductance in the circuit. Fig. 3 shows an embodiment forming an "AND" and an " OR " gate producing current at the terminals 50 or 52 if the corresponding functions A#B or #A+B are true forthe four inputs A, #A, B and #B.
Patent GB-1104610-A (GB)
Title: Production of fine oxide particles
IPC: C01B33/18
Filed: 1966-10-31
Abstract: Mixed oxides are prepared by a modification of the process claim in Specification 1,031,467, in which a mixture of two or more volatile oxidizable metal or metalloid compounds are oxidized.  An inert fluid (e.g. nitrogen) is heated by means of a plasma jet generator to 3000-12,000 DEG  C.  The mixed volatile compounds and/or the oxidation gas is mixed with the plasma stream and passed into a reaction zone at 800-3000 DEG  C. for a residence time of 0.001 to 1 second.  Examples relate to a mixed oxide of titanium and nickel obtained by oxidation of a mixture of titanium tetrachloride and nickel carbonyl and a mixed oxide of aluminium and chromium by oxidation of a mixture of aluminium chloride and chromium oxychloride. The oxides specifically claimed are obtained from halides, oxyhalides or carbonyls of Al, Sb, Cr, Ni, Si, Ti and Zr.
Patent GB-1424321-A (GB)
Title: Cultivator
IPC: A01B73/06
Filed: 1971-10-20
Abstract: 1424321 Cultivators R J KINGSTON 22 Jan 1973 [20 Oct 1971] 48850/71 Heading A1B A cultivator comprises ground-engaging tines 1 carried by a frame including a centre section 2 and two outer sections 3 hinged at about vertical axes 40 to the rear corners of the centre section 2 so that the outer sections 3 may occupy an operative position (full line) or an inoperative position (dot-dash line) substantially or fully behind the centre section 2. The outer sections are locked in their operative positions by pins 6, and in their inoperative positions by tie bar 5 or a chain. The tines 1 are of curved formation and retained by ends 12 which are clamped at 13. The centre section 2 carries ground wheels or rollers 7 on arms 72 pivotally adjustable by a handle-operated screw mechanism 70.
Patent GB-1527088-A (GB)
Title: Aircraft flight control systems
IPC: G05D1/00
Filed: 1975-11-28
Abstract: 1527088 Automatic pilot SPERRY RAND CORP 28 Nov 1975 [19 Dec 1974] 48980/75 Heading G3R [Also in Division B7] In a system in which an aircraft is automatically controlled by a short term stabilizing system and a long term "flight director" operates an indicator for the pilot, the flight director is coupled to the short term system to provide long term stability, and positional feedback from a control surface "limited authority" actuator is supplied to the flight director indicator to warn the pilot when the actuator is approaching the end of its travel so that he can trim the aircraft and so re-centre the actuator. The embodiment describes a pitch control system in a helicopter. The rotor swash-plate is moved by a power actuator 22 in response to servo actuator 26 or control column 12, the latter having an adjustably centred "feel" spring device 16, 17. Actuator 26 is controlled principally by the short term stabilizer 23, 24. A rate gyro with a different shaping circuit 30 may be substituted for that shown. A flight director computer 35 operates indicator 11 in response to the gyro signal and signals from radio or other sources 36. A coupling unit 44 supplies information from the flight director to the stabilizer at 31 and feeds signals from actuator position transducer 27 via 46 to the indicator circuit at 42. When actuator limit indication is given the pilot disengages the "feel" system, trims the aircraft until re-centring is indicated, then re-engages the "feel" in this new position. The signal processor 46 has a threshold below which no indication is given, and after which indication is proportional to actuator movement; proportionality is maintained during re-centring down to a lower threshold. A circuit for the shaping unit 45 is described, and includes an integrator and lag circuits Figs. 2, 3 (not shown) as is that for processor 46 Fig. 4 (not shown). A control column transducer 21 is connected to the actuator servo via circuit 34 Fig. 6 (not shown).
Patent GB-1066678-A (GB)
Title: A rotor for use in a gas turbine engine
Inventor: WILDE GEOFFREY LIGHT
IPC: F01D5/30
Filed: 1964-12-02
Abstract: 1,066,678. Turbine blades. ROLLS-ROYCE Ltd. Nov.25, 1965 [Dec.2, 1964], No.49099/64. Heading F1T. A rotor for a gas turbine engine has turbine blades having roots 11, shanks 13 and aerofoil working portions 12. The blades are cranked so that a single row of aerofoil portions may be formed by similar blades 10, 10a carried by a number of axially-spaced, small diameter rotor discs 18, 19. The tow may be formed by blades carried by more than two discs providing the blades are appropriately cranked. Moreover, the rotor may also Incorporate a disc carrying non-cranked blades. The turbine may be cooled by fluid, such as air from the compressor of the gas turbine engine, delivered to a space 21 between discs 18, 19 and passing therefrom through apertures 22 and internal passages in the blades to outlet apertures 23. Alternatively, or additionally the latter may be arranged in the radially outer faces of platforms 14, or alternatively in the leading or trailing edges of the aerofoil portions 12, 12a. Members may extend between the shanks 13, 13a to prevent axial leakage of the cooling fluid.
Patent GB-1328219-A (GB)
Title: Method and arrangement for the location of video heads on a head carrier
IPC: H04N17/06
Filed: 1970-10-16
Abstract: 1328219 Mounting magnetic heads BLAUPUNKT-WERKE GmbH 16 Oct 1970 [17 Oct 1969] 49196/70 Heading G5R Video heads 8 are accurately mounted on a carrier 2 by rigidly holding the carrier within a drum 3 carrying fixed, reference heads 4, feeding an A.C. signal to one set of heads, and adjusting the position of the video heads 8 on the carrier until the signal induced in the other set is maximized. This occurs when the pole tips of the opposed heads 4, 8 shunt the air gaps. The video heads are subsequently secured by cement introduced into channel 9.
Patent GB-1129308-A (GB)
Title: Apparatus for treating a patient
IPC: A61H/
Filed: 1965-11-22
Abstract: 1,129,308. Treatment chambers. G. JAUVAIS. 22 Nov., 1965 [7 Dec, 1964], No. 49440/65. Headings A5R and A5T. A treatment chamber comprises a sealed container provided with a vibratory chair 14 and a device for converting water to a heated aerosol form. The latter device may comprise a container 21 in which distilled water is placed and a serpentine tube 26, both of which are heated by passing an electric current through a resistance in a terra cotta element 23. Both the container and the vibratory chair may be mounted on frames provided with rollers. Cinematographic or television apparatus 27 may be mounted on the container so as to project an image on a screen 28. A hood 29 may be placed over the head of the patient, the hood being provided with an oxygen inlet tube 32, fan 31 and sound reproducing apparatus 30. Appropriate medicaments may be placed in the water container 21.
Patent GB-1467857-A (GB)
Title: Transmission mechanism employing magnetic attraction
IPC: G01D5/06
Filed: 1974-11-16
Abstract: 1467857 Magnetic gearing Z G BLJUMSHTEIN and S V DMITRIEV 16 Nov 1974 49703/74 Heading F2Q In a gear mechanism, Figs. 5, 6, particularly for use in a fluid pressure indicating instrument, a frame comprising plates 1 and spacers 2 rotatably supports a driven toothed wheel 7 and a driving toothed sector 6, on axes such that no mechanical contact between the mutually opposing teeth can occur, and two permanent magnets 9, together with L-shaped magnetic yoke members 12, are fixed to the frame and provide magnetic flux through two flux paths, jointly passing through the air-gap between the teeth of wheel 7 and sector 6, which are each composed of a soft ferromagnetic material, thereby deriving a magnetic pull between the opposing teeth and permitting torque to be transmitted between them. Wheel 7 is mounted on a shaft 8 which may carry an indicating pointer, and sector 6 is adjustably mounted by screws 14 on a drive link 5, pivoted on a shaft 4, and which may be driven by the displacement of an aneroid, membrane or Bourdon tube pressure sensor. Two additional magnets 15 may optionally be fitted as a means of reducing friction at the bearings of shaft 8, by compensating for the radial magnetic force on the teeth. In an alternative embodiment, Figs. 11, 12, a permanent magnet 31 is mounted between two concave driving toothed sector members 29, jointly opposing a broad-faced toothed wheel 7, and providing a single and compact magnetic flux path, through an air-gap which may be adjusted by means of an eccentric screwed bush 32 carrying the sector pivot shaft 4. In further alternative embodiments, a single permanent magnet may be fixedly supported centrally between twin toothed sector members which may have inwardly-facing contrate teeth or bevel teeth, opposed to the end faces of a piniontype toothed driven wheel. A partition of diamagnetic material may be placed in the airgap between the teeth, as a sealing wall around the sensor element forming a protection against explosion. The toothed sector may have progressive variations in the pitches between adjacent teeth along its arc, as a means of providing a non-linear scale law relating output indication to sensor displacement, or alternatively, as a means to linearize the scale law of a sensor whose displacement with pressure is non-linear.
Patent GB-1001016-A (GB)
Title: Sealing of the open ends of thermoplastic bags
IPC: B65B51/32
Filed: 1963-12-18
Abstract: 1,001,016. Sealing bag necks. W. R. GRACE & CO. Dec.18, 1963 [March 21, 1963], No. 50083/63. Heading B8C. [Also in Division B5] The gathered end of a bag of heat-shrinkable material is sealed by first heating it, without applying appreciable pressure, and then cooling the heated mass while applying sealing pressure. In the machine illustrated, the neck of a filled bag is gathered by clamps 52, 53 (Fig. 1) drawn together by light springs and carried by an endless conveyer 48. Flanges 66, 67 (Fig. 5) on the clamps are then carried into heating bars 79, 80 (Fig. 1), and subsequently through converging bars 81, 82 which cool the gathered neck and apply pressure to seal it. The pressure should be sufficient to reduce the thickness of the neck at least 10%. The clamps may print or emboss the bag neck. The bars 81, 82 may be continuous with the bars 79, 80, or guiding rollers 34, 35, or a funnel-shaped guide, may assist in directing the gathered bag neck into the cooling bars 81, 82. The gathered neck may be trimmed at 101 before it is heated. The bag is preferably evacuated, before the neck is heated, by a suction nozzle which moves with the bag and is withdrawn immediately before the trimmer 101. The bags are subsequently carried through a heat-shrinking oven.
Patent GB-1186029-A (GB)
Title: Continuous Oxidation of Para-Xylene to Terephthalic Acid
IPC: C07C51/00
Filed: 1967-11-06
Abstract: 1,186,029. Terephthalic acid. MOBIL OIL CORP. 6 Nov., 1967 [21 Feb., 1967], No. 50349/67. Heading C2C. Terephthalic acid is prepared by a continuous oxidation process which comprises continuously charging a C 2-4  fatty acid as a reaction solvent, para-xylene, water, a cobalt-containing oxidation catalyst a methylenic ketone and an excess of a gas containing O 2  under an O 2  partial pressure of 50-1000 p.s.i. at substantially constant rates into a confined reaction zone; reacting the charge, under sufficient pressure to maintain a liquid phase in a substantially uniform reaction mixture throughout the reaction, in the reaction zone at a substantially constant and sufficiently elevated temperature and for a period sufficient to oxidize at least 90% of the para-xylene to terephthalic acid in the presence of the excess O 2  while continuously withdrawing reaction product slurry from said reaction zone, and withdrawing unreacted oxygen from the mixture at a rate corresponding from 2% to 25% of the O 2  charging rate.
Patent GB-1449043-A (GB)
Title: Treatment of asthma
IPC: A61K31/12
Filed: 1973-11-01
Abstract: 1449043 Compositions containing 2-methyl- 3-tetraprenyl-1, 4-naphthoquinone EISAI CO Ltd 1 Nov 1973 [2 Nov 1972] 50741/73 Heading A5B A pharmaceutical composition comprises 2- methyl - 3 - tetraprenyl - 1, 4 - naphthoquinone which is one of the K2 vitamins and has the formula:- as the active ingredient for treating asthma in association with a pharmaceutical carrier or diluent.
Patent GB-1352728-A (GB)
Title: Preparation of microbial cells
IPC: C12N1/32
Filed: 1971-11-02
Abstract: 1352728 Pseudomonas methanolica G TERUI 2 Nov 1971 [11 Dec 1970] 50952/71 Heading C6F [Also in Division B1] Microbial cells of good protein quality are obtained by aerobically culturing Pseudomonas methanolica ATCC 21704 in a culture medium containing methanol and recovering the cells therefrom e.g., by centrifugation. The cultivation may be carried out in a single tank fermenter, batchwise or continuously, while maintaining the methanol concentration at less than 0.2% (V/V). A preferred feature is batch or continuous cultivation in two inoculated fermenters 1 and 2, Fig.2, of which the latter has about 1/5th the capacity of the main tank. A 1-2% (V/V) concentration of methanol is maintained in the first fermenter. Volatilised methanol passes through the linking pipe 7 into the second fermenter 2. Reference 6 indicates baffles.