baber/WOPTO huggingface dataset:
Patent GB-2471135-A (GB)
Title: Hair dye composition and use in reducing contact allergy
Inventor: BASKETTER DAVID
IPC: A61K31/355
Filed: 2009-06-19
Abstract: A hair dye composition comprising an inhibitor to oxidation of the hair dye may help reduce induction of contact allergy or reduce allergic contact dermatitis of the skin. The inhibitor to oxidation may be an antioxidant, a reducing agent and/or a neutralizing system. The antioxidant may be vitamin E (or derivative thereof). Numerous other antioxidants and reducing agents are suggested including ascorbic acid, cysteine, manganese dioxide, ammonium sulfate etc.
Patent GB-2457415-A (GB)
Title: Ion trap
Inventor: MAKAROV ALEXANDER
IPC: H01J49/04
Filed: 2007-12-27
Abstract: An ion trap comprises substantially elongate electrodes 10, 20 some of which are curved along their axis of elongation and which define a trapping volume between them. The sectional area of this trapping volume towards the extremities of the trap in the direction of elongation is different to the sectional area away from its extremities (eg towards the middle of the trap). In a preferred embodiment, the trap has a plurality of elongate electrodes, wherein opposed electrodes have different radii of curvature so that the trap splays towards its extremities. Thereby, a wider mass range of ions can be trapped and ejected, a higher space charge capacity (for a given trap length) is provided, and sharper ion beam focussing on ejection is possible.
Patent GB-2475680-A (GB)
Title: Milling apparatus
Inventor: BROWN CHRISTOPHER JOHN
IPC: B02C17/00
Filed: 2009-11-25
Abstract: A milling device has a shaft 27 within a cup 28, the outer wall of the shaft 27 proximate or in contact with the inner wall of the cup 28, both shaft 27 and cup 28 being rotatable in both the same, and opposite, directions to provide two different grinding actions for material, usually in a fluid medium, passed into the cup 28, and between the cup 28 and shaft 27 to be disintegrated.
Patent GB-1419713-A (GB)
Title: Molten metal vessel suspension system
IPC: C21C5/46
Filed: 1973-03-01
Abstract: 1419713 Mounting metallurgical converters PENNSYLVANIA ENG CORP 1 March 1973 10022/73 Addition to 1310775 Heading F4B An arrangement for supporting a tiltable metallurgical converter 10 comprises a box type trunnion ring 16 spaced therefrom and connected thereto by a series of suspension beams 30 extending through the inner wall 22 of said trunnion ring and being welded to this wall and to the remaining walls 20, 21 and 23 of the ring, said beams being attached to the converter shell by rivets or bolts 39 or by welding. The trunnion ring may be reinforced by radially disposed plates 25 formed with holes 24 for the passage of cooling water, similar holes 37 being formed in the beams 30.
Patent GB-906673-A (GB)
Title: Electric motor control systems
IPC: H02P7/298
Filed: 1960-03-22
Abstract: 906,673. Control of D.C. motors. BROOKHIRST IGRANIC Ltd. March 22, 1960 [April 6, 1959], No. 10077/60. Class 38 (3). [Also in Group XXXV] A control system for a D.C. motor M comprises speed-setter SS connectable to network TRM including transistors T1, T2, and capacitor C1 for providing a reference voltage at terminals 18, 20 which changes linearly at timed rates in response to changes in magnitude of the input voltage at terminals 8, 10. The reference voltage is applied to a comparator network CM which also receives a feedback voltage from resistor R16 representing the armature voltage of the motor. The network CM comprises transistors T4, T5, for supplying a resultant voltage to power amplifier PAM, the output of which controls magnetic amplifier MA from which the armature A is energized. The capacitor C1 is charged linearly due to the constant current characteristics of the transistor T1, the acceleration time being adjusted by means of potentiometer 34. When potentiometer SS is adjusted to decrease the speed, transistor T1 acts as a short circuit and transistor T2 passes constant current to discharge capacitor C1. The value of the discharge current is determined by the setting of deceleration-timing potentiometer 38. The stopping time of the motor is controlled from potentiometer 36. Transistors T4, T5 are of opposite conductivity types, the output of the circuit CM being stabilized despite ambient temperature changes, to a value determined by the reference voltage and the setting of rheostat 56. Transistor T6 of power amplifier PAM is protected from the inductive effect of control winding CW by means of rectifier RCT-3 and diode ZD. The maximum voltage obtainable by adjustment of speed setter SS is determined by rheostat MS. In a modification, a tachometer generator replaces the armature voltage feedback arrangement, Fig. 2 (not shown). In a further embodiment, the motor is supplied from a Ward Leonard generator, Fig. 3 (not shown). The system comprises a number of modular component circuits, only those elements adapted to be varied in value being connected externally of the modules. The modular circuits are encased in plastic material. Specifications 906,672, 906,674 and 906,676 are referred to.
Patent GB-1405406-A (GB)
Title: Reduction of nitrogen oxides
IPC: B01D53/94
Filed: 1971-06-25
Abstract: 1405406 Exhaust gas treatment JOHNSON MATTHEY & CO Ltd 21 June 1972 [25 June 1971 (2)] 10127/75 and 10128/75 Heading C1A Divided out of 1405405 Nitrogen oxides in waste gases are reduced by means of a gaseous reducing fuel used in excess of the amount required to reduce the nitrogen oxides and oxygen in the waste gases by contact with a supported catalyst comprising an inert material, an intermediate coating thereon containing at least one oxide of scandium, yttrium or a lanthanide and a catalytically active final coating or impregnate of a mixture or alloy of rhodium (1-50 wt. per cent of metal content of the mixture or alloy), optionally a base metal (0À01-25 wt. per cent of the mixture or alloy) and platinum (the balance) at a temperature above the ignition temperature of the waste gas and fuel. The intermediate coating may contain another refractory oxide which may be the same as the inert material which is preferably in the form of a honeycomb or cellular structure. The Group IIIA oxide may be present in a zeolite.
Patent GB-1104338-A (GB)
Title: Process for the formation of electric insulating coating on electric iron sheet
Inventor: WADA TOSHIYA
IPC: C23C22/74
Filed: 1965-03-10
Abstract: An insulating coating is formed on a silicon or low carbon steel sheet using an aqueous solution containing (% by weight) 0.5 to 20 hexavalent chromium ions, 0.3 to 8 of one member of the group Be, Cu, Cd and alkaline earth metal (including Mg) ions, 0.1 to 8 of an organic reducing compound, e.g. alcohols such as ethylene or polyethylene glycol, glycerine, polyvinyl alcohol, and tetramethylene glycol; aldehydes or sugar such as glycerine aldehyde, dextrose, sucrose and starch or carboxylic acids such as succinic or adipic acids, a copolymer of polyvinyl methyl ether and maleic acid, phthalic and salacylic acids, and 0.1 to 20 phosphoric acid and/or 1 to 8 of boric acid.  0.01 to 0.5 of a non-ionic surface active agent e.g. polyethylene glycol may be added.  The chromate may be the trioxide, chromic acid, water soluble chromates or bichromates, and the alkaline earth metal oxides, hydroxides or salts of chromic or bichromic acids. The sheets may be heated to 150 to 500 DEG C.
Patent GB-675140-A (GB)
Title: Improvements in or relating to control units for internal combustion engine installations
Inventor: WALKER EDWARD BOWKER
IPC: F02D9/00
Filed: 1950-04-25
Abstract: 675,140. Controlling reversing-gearing. TRANSPORT EQUIPMENT (THORNYCROFT), Ltd. Dec. 4, 1950 [April 25, 1950], No. 10168/50. Class 80 (ii). [Also in Group XXVII] In reversing gearing driven by an internal-combustion engine for marine or like installations and operated hydraulically under the control. of a rotary valve, a single spindle 3a operated by a lever 6 for controlling both the gear valve and the engine throttle or speed regulator is rigid with a valve 3 controlling the supply of pressure fluid from an inlet 1f to a cylinder 1b via an adjustable needle valve 7 and is locked to an element 2, . connected to the gear valve, only during movement of the lever 6 to, predetermined positions B on either side of the neutral position A. Such locking is effected by a plunger 4 slidable longitudinally in the valve 3, the lower end of the plunger co-operating with a recess 2b in the element 3 while the upper end co-operates with a stationary cam plate 5. The cylinder 1b, fitted with a spring-loaded relief valve 12, contains a spring-loaded piston 8 connected via a pin 8a and link 9 to the throttle lever 10 carrying a roller 10a co-operating with a cam 11 on the spindle 3a. In the neutral position A of the lever 6, the gear is in neutral and lever 10 in idling position. Movement of lever 6 to one or other position B causes movement of element 3 to engage forward or reverse gear, lever 10 remaining in idling position. On movement of lever 6 beyond position B, element 2 is released and valve 3 allows fluid to pass to cylinder 1b, whereby piston 8 is moved and the throttle opened, at a speed determined by the valve 7 and to an extent determined, via the cam 11, by the position of the lever 6.
Patent GB-384167-A (GB)
Title: Improvements in or relating to arrangements for the rectification of modulated high frequency oscillations
IPC: H03D1/16
Filed: 1932-04-09
Abstract: 384,167. Valve detecting circuits. BELL, D. A., 25, Greenway, Berkhamsted, Hertfordshire. April 9, 1932, No. 10178. [Class 40 (v).] - In a high-frequency detector the modulation frequency grid current is arranged to flow through a frequency discriminating circuit. Fig. 1 shows the application to the first detector of a supersonic heterodyne receiver in which the circuit LC is tuned to the intermediate frequency. To correct for sideband cutting a rejector circuit or a low-pass filter may be used in the circuit of the final detector, Fig. 2 (not shown). Fig. 3 shows a modification in which the filter F is arranged in series with a choke CH in place of the usual grid leak of a detector.
Patent GB-1331131-A (GB)
Title: Method of and apparatus for heat treating material using  microwave energy
IPC: H05B6/78
Filed: 1971-04-20
Abstract: 1331131 Microwave heating MENSCHNER GmbH [trading as JOHANNES MENSCHNER TEXTILMASCHINENFABRIK] 20 April 1971 [23 April 1970] 10222/71 Heading H5H [Also in Division H1] Microwave heating apparatus for vulcanizing or cross-linking rubber or plastics comprises a waveguide duct open at each end to enable material to be passed therethrough, the waveguide duct being constructed as a quadrupleridge waveguide, the ridges being arranged in two opposed pairs 18a, 18b projecting inwardly and extending axially of the waveguide. The quadruple ridge waveguide enables larger crosssections of material to be uniformly heated.  Each ridge 18a is joined to its adjacent ridge 18b by a quarter wavelength pocket 19 shortcircuited at its end. Separate magnetron generators are provided for each pair of ridges 18a, 18b. The waveguide is in two halves preferably hinged together along a plane 20.
Patent GB-540393-A (GB)
Title: Improvements in the construction of walls, partitions and the like
IPC: E04B2/72
Filed: 1940-06-12
Abstract: 540,393. Wall and ceiling coverings; slabs for partitions and walls. RUDD, T. R. June 12, 1940, No. 10230. [Classes 20 (iv) and 87 (i)] A plaster sheet 10 forming a section for a wall, roof or ceiling is moulded around laths 12 and canvas 11 and has projecting marginal and intermediate battens 14 to which a sheet 21 of expanded metal is secured to hold a layer or covering of cement or plaster 22.
Patent GB-438774-A (GB)
Title: Improvements in or relating to doors adapted to be hermetically closed
IPC: E06B5/14
Filed: 1935-04-02
Abstract: 438,774. Making doors and frames. JAUBERT, G. F., 155, Boulevard Malesherbes, Paris. April 2, 1935, No. 10238. Convention date, Oct. 3, 1934. [Class 83 (ii)] [See also Group X] An air-tight metal door and frame are made by pressing a single sheet of metal, to form strengthening ribs 2, and a groove 15 along which the door and frame are severed by cutting. Retaining lips 11, 13 are thereafter attached to the edges by spot-welding, riveting, &c. to form retaining and engaging surfaces for a tubular hermetic seal 6.
Patent GB-1428863-A (GB)
Title: Electric motors and vacuum cleaners including such a motor
IPC: A47L9/00
Filed: 1974-03-07
Abstract: 1428863 Insulating dynamoelectric machines SCOTT & FETZER CO 7 March 1974 [16 July 1973] 10292/74 Heading H2A In a vacuum cleaner motor 10, the electrically active parts are mounted (already insulated) within a unitary insulating section 18 of the motor housing 13 whereby to be doubly insulated relative to a complementary unitary conducting housing section 16. As seen, the field core 36 of the motor is positioned inside a sleeve extension 34 of the insulating section 18, the sleeve 34 mating with a sleeve extension 26 of the conducting section 16 and being provided with resilient axial ribs 40, 41 on inner/outer surfaces for taking up play at the engagement regions. Further ribs 43 are provided in a recess 48 in section 18 for taking up play in the mounting of a bearing 46 for the armature shaft 50. The housing section 18 is integrally moulded, e.g. in plastics material, to include two brush holders 58 and a power lead conduit 60. The shaft 50, which is covered by a non-conducting sheath 54, supports both an internal cooling fan 66 and the main suction fan 84.
Patent GB-310632-A (GB)
Title: Improvements in means for converting reciprocating into rotary motion and vice versa
IPC: F02B75/22
Filed: 1928-04-05
Abstract: 310,632. Marchetti, P. April 5, 1928. Cam-actuated pumps. - In driving gear for pumps &c. rotary motion is converted into reciprocating through a pair of cams 11, 12 with which interconnected rollers 8 on connecting-rods 7 maintain continuous contact. In an arrangement employing a large number of cylinders, these are disposed radially around the shaft and interconnected in pairs.
Patent GB-829324-A (GB)
Title: Improvements in or relating to flame control devices for combustion chambers of jet propulsion units
IPC: F23R3/00
Filed: 1957-03-29
Abstract: 829,324. Generating combustion products under pressure. SOC. BERTIN & CIE. March 29, 1957 [March 30, 1956], No. 10416/57. Class 51 (1). In a tube jet-propulsion unit turbulence is created within the flame in the re-heat chamber by jets of compressed-air issuing from inner and outer circles of orificed tubes 8, 8a, Fig. 1, supplied with air from a chamber 4 connected to an inlet pipe 10. Gases entering the chamber 3 from the turbine 1 receive supplementary fuel from an injector 5 and the flame is held in the chamber by an annular screen 15 and associated pilot flame fuel injector 16. In a further unit the pipe 10, Fig. 3, connects to a circular air main 13 having radial tubes 12 carrying the tubes 8, 8a. The necessary reheat fuel is fed into each tube 12 by an injector 14. Reference has been directed by the Comptroller to Specification 751,013.
Patent GB-1040172-A (GB)
Title: Improvements relating to the manufacture of polymeric products from trioxan
Inventor: WILSON WALTER
IPC: C08G2/00
Filed: 1962-03-19
Abstract: Trioxane is copolymerized under anhydrous conditions using as catalyst a compound of one of the following formulae <FORM:1040172/C3/1> <FORM:1040172/C3/2> where R is alkyl, halo-substituted alkyl, halo-substituted alkoxy alkyl, alkoxy substituted alkoxy, aryl, substituted aryl or has the formula X.CO.CZ=CY-, where Z is hydrogen and X and Y are alkyl or aryl or X is alkyl or aryl and -CZ=CY- forms part of an aromatic ring and R1 and R2 are each alkyl, substituted alkyl, alkoxy substituted alkoxy, aryl or substituted aryl.  Specified catalysts are n-butyl difluoroborinate, ethyldifluoroborinate, 2-fluoropropyl difluoroborinate, 2-fluoroethyldifluoroborinate, di - (n - butyl) fluoroborinate, acetylacetonedifluoroborinate, dibenzerylmethane difluoroborinate, (fluoromethoxy)ethyl difluoroborinate, (fluoromethoxy) methoxymethyl difluoroborinate, phenyl difluoroborinate and phenyl fluoroborate; mixtures may be used. The trioxane may be copolymerized with a cyclic ether, a cyclic carboxylic ester more reactive than a g -lactone, an aldehyde, styrene or a substituted styrene, a vinyl ether, a N-vinyl or C vinyl substituted derivative of an aromatic heterocyclic compound, an ethylenically unsaturated aliphatic or alicyclic hydrocarbon an allyl compound, and isocyanate or a nitrile. Inert liquid media, inert atmosphere and continuous reaction are also preferred conditions.
Patent GB-1390201-A (GB)
Title: Tape drive with speed control
IPC: G11B15/54
Filed: 1972-03-07
Abstract: 1390201 Automatic speed control HONEYWELL Inc 7 March 1972 [11 March 1971] 10505/72 Heading G3R In a tape drive arrangement with a retroactive speed control system, correction signals corresponding to predetermined angular positions of the drive are stored and combined appropriately with the speed control signal to compensate for errors inherent in the drive components. In the arrangement shown in Fig. 1, a magnetic tape 1 is driven by a capstan 2 connected to a motor 8 which also drives a wheel 10 associated with a magnetic pick-up 11. The pick-up feeds a signal of frequency nominally proportional to the tape speed through an amplifier 12 to a phase comparator 16 which also receives an input of a frequency representing a desired tape speed from an oscillator 18. The output from the comparator drives the motor 8 through a servo amplifier 20. The output from amplifier 12 also triggers a memory 14 to release digital correction signals which have previously been stored at addresses corresponding to given rotary positions of the wheel 10. These signals are passed through a D-A converter 22 for combination with the comparator output in amplifier 20. The correction signals may be obtained by previous operation of the drive arrangement with a constant frequency input or by measurement of recorded frequency sidebands. A new set of signals must be obtained if drive components are replaced. If record and playback heads are separately located on opposite sides of the capstan, two selectable correction signal memories are used, Fig. 2 (not shown). This arrangement includes a phase shifting device. In another embodiment, Fig. 3 (not shown) the memory is formed by additional magnetic tracks on the code wheel 10.
Patent GB-691153-A (GB)
Title: Improvements in helmets and corselets for closed diving-suits of the type with separation of the gases provided with a regulator of distribution of the air for breathing
IPC: B63C11/02
Filed: 1951-05-04
Abstract: 691,153. Diving. GALEAZZI, R. May 4, 1951 [May 5, 1950], No. 10589/51. Class 68(ii) A helmet 1 and corselet 2 for a closed diving-suit of the type having separate supplies of air for breathing and for pressure - balancing, includes a regulator 5 for the distribution of the air for breathing made integral with the corselet and acted on by the internal pressure of the suit rather than the pressure of the surrounding water.
Patent GB-283031-A (GB)
Title: Improvements in and relating to superheater boilers
IPC: F22G1/00
Filed: 1927-04-20
Abstract: 283,031. Robertson, T. E., (Power Specialty Co.). April 20, 1927. Arrangements of superheaters in boiler furnaces.- In a water-tube boiler of the Yarrow or like type, the combustion chamber extends downwards below the water drums and contains a radiant heat superheater incorporated in a wall in such a manner that its entire surface absorbs direct radiant heat from all parts of the chamber. The superheater E in the end wall of a combustion chamber a consists of a number of vertical, cast steel sections of rectangular cross-section. The elements are connected by tubes F to external headers G, G', and they are so supported by a metallic framework as to allow the elements to expand and contract, as described in Specification 237,222.
Patent GB-237198-A (GB)
Title: Improvements in framework for typewriting machines
IPC: B41J1/32
Filed: 1924-05-20
Abstract: 237,198. Fischer, O., and Naamlooze Vennootschap Machina Maatschappij voor Handel en Industrie. May 20, 1924. Sound-deadening supports and pads; type-wheel machines.-The framework of a typewriter is supported by means of springs 38 which are provided with padded feet 40 of felt or the like and are secured to the base frame 32 with intermediate pads 39. Felt or like strips 33 are also provided between the base frame 32 and a base plate 1 resting thereon. A frame 6 on the base plate 1 is provided with uprights 25 supporting an upper frame 5 which carries a top plate 2 supporting the paper-carriage. Pillars 14 support a rocking frame carrying the type cylinder, which is operated by a rocking frame supported by pillars 21. The front, rear, and sides of the framework are provided with transparent panels of glass or the like.
Patent GB-607277-A (GB)
Title: Improvements in permutation locks
IPC: C02F5/08
Filed: 1944-06-06
Abstract: 607,277. Permutation locks. FISHER, G. R. L. S. June 6, 1944, No. 10845. [Class 44] A permutation lock comprising indiciabearing rings 46, Figs. 1 and 13 and co-operating locking balls 52 adapted to lock a bolt 49, has a plunger 48 axially movable to move the balls clear of notches 46c in the internal periphery of the rings 46 so that the rings may be freely rotated to change the combination. The bolt is held against angular movement in the lock body 41 by the plunger 48 contained in a bore in the bolt and having a radial flange 48d engaging in a radial slot 49b in the bolt and in radial slots 42a in the lock body 41. Slats are formed in the flange 48d to allow the balls to pass through the flange and to accommodate the balls when they are to be moved clear of the rings in order to change the combination. When the rings 46 are rotated to bring the balls into alignment with the slot 49b in the bolt, the bolt may be withdrawn from the lock body to release a spare wheel &c. 60. Spring- pressed balls engage notches 46d, Fig. 13, in the rings 46 to hold these rings in position when the bolt is withdrawn, or when subject to vibration also to confuse the effort to release the lock by a person unaware of the combination, by the clicks made by the balls. The combination may be altered by depressing the plunger 48 against a spring 50, in the unlocked position, thus moving the balls 52 out of the notches in the rings, which may then be rotated to bring other notches opposite the balls. A further locking device for the bolt 49 comprises a dust cover 44 which must be rotated to bring the gap between ends 44a, 44b, Fig. 20, opposite the opening 41a in the lock body in order to manipulate the rings. During this movement the dust cover depresses a spring pin 57 into a bore 49d in the bolt 49, which can only be withdrawn when the dust cover is again closed. In a modified form of the invention adapted to lock a brake lever, a bore 61d, Fig. 21, passes over the brake lever and the brake ratchet rod is locked by the tip 69d of the bolt 69. A longitudinal groove on the bolt allows axial movement of the bolt for unlocking, when the balls are in alignment and this groove also engages lugs on the case and spacer ring to prevent rotation of the bolt. To change the combinations the rings are moved to unlocking position, axial movement of the ball beyond the releasing position will then allow the balls to drop into depressions 69a in the bolt and permit the rings to be turned to a new position. This lock is also shown arranged between a brake lever and the ratchet lever. Specification 607,351 is referred to.