baber/WOPTO huggingface dataset:
Patent GB-524577-A (GB)
Title: Improvements in and relating to methods of and apparatus for balancing rotating bodies
IPC: G01M1/22
Filed: 1939-02-01
Abstract: 524,577. Testing balance of rotary apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 1, 1939, No. 3395. Convention date, Feb. 1, 1938. [Classes 106 (ii) and 106 (iv)] [Also in Group XXXVIII] An A.C. voltage is generated having characteristics determined by the vibrations due to unbalance, while a second voltage of the same frequency is generated means being provided for measurably varying the second voltage, the difference between the two voltages being intermittently applied to a null reading voltmeter which is given a null reading by adjusting the magnitude of the second voltage. The rotor to be balanced is in a casing 10 and on a shaft 13. The vibrations of the bearings 11, 12 are transmitted by links to parts 15, 15<SP>1</SP> carrying coils 16, 16<SP>1</SP> which move in the fields of magnets 14, 14<SP>1</SP>. Voltages are induced proportional to the vibrations. An auxiliary apparatus 18 is adapted to be rotated by a shaft 20 connected to the shaft 13. This apparatus includes a bracket 30 having a flanged ring 31 and a hollow cylindrical projection 32 fixed thereto. A cylindrical casing 34 is supported on the flange 31 and terminates in a transparent closure member 35. The casing may be rotated by a crank and gear 36 through an angle given by reading a fixed index mark A against a scale 37 on the casing. Within the latter is a generator comprising a stator winding 38 and a rotor 39 formed by a permanent magnet polarized in a given diametral direction B and connected to the shaft 20. The winding 38 is adjustably rotatable with the casing 34. Secured to the casing is a base plate 43 bearing thereon two alternatively usable circuit interrupters having contacts 45, 46 and 47, 48 respectively. These contacts are opened by a cam 50 on the shaft 20 against the influence of springs 54, 55. Slip rings 57 are connected some to the generator by conductors 58, and others to contacts 45-48 by conductors 59. Stationary brushes 60 connect with external circuit elements. With the switch 25 moved to the left, and contacts 46, 48 closed, the instrument 23 measures a sinusoidal voltage equal to the difference between that of coil 16 and that between contacts 64, 65 of a potentiometer 26 in circuit with coil 38, and this latter is varied by adjusting the casing and coil 38 angularly, until the instrument reads zero. The position of the scale 37 with respect to mark A gives the time-phase relation of the out of balance. By moving switch 25 to the right, contacts 45 and 47 are placed in circuit. With the arrangement the reading of instrument 23 is due to the difference in magnitude between the voltages and by varying the potentionals. 'The " zero " reading is obtained and the reading of the potentiometer 26 is proportional to the out of balance force. Similar measurements may be made for the other bearing by moving switch 22. In a modification the meter 23 is connected in shunt with one or other of the interrupters. Specification 498,899 is referred to.
Patent GB-984486-A (GB)
Title: Cellular synthetic resins suitable for incorporation in rocket motors
IPC: F02K9/97
Filed: 1963-01-28
Abstract: A rocket combustion chamber is lined with a cured plastic composition containing microballoons embedded in a thermosetting resin. The composition is made by mixing a liquid thermosetting resin, e.g. an epoxy novalac, a curing agent, e.g. methyl bicyclo-[2,2,1]- 5 - heptene - 2,3 - dicarboxycylic anhydride, an accelerator for the curing reaction, e.g. tri-dimethylamino ethyl phenol or benzyldimethylamine and microballoons of silica glass or phenol-formaldehyde resin of 50 microns-0.125 inch diameter. A thickening agent, e.g. asbestos, cotton, wool, nylon or rayon fibres, may also be added. The mixture is heated to 160-200 DEG  F. After application it is cured at 120-500 DEG  F.  Layers 12 and 19 of the resin may be applied to the rocket shell 11 by use of a polythene covered mandrel.  An adhesive may also be used. Throat insert 13 may be made of molybdenum, tungsten, copper or aluminium and has a metallic oxide coating 14.  Specification 917,627 is referred to. <PICT:0984486/C3/1>
Patent GB-920928-A (GB)
Title: Improvements in or relating to door checks, notably for automobile doors
IPC: E05D11/10
Filed: 1960-02-01
Abstract: 920,928. Door holders. REGIE NATIONALE DES USINES RENAULT. Feb. 1, 1960 [Feb. 23, 1959], No. 3461/60. Class 65 (1). A device for retaining automobile doors in the fully open and closed positions comprises a torsion bar 9, Fig. 5, fixed to the frame 1 cooperating with a member 19 fixed to the door 4 or vice versa, the torsion bar 9 having a central cranked portion 14, Fig. 1, for co-operation with member 19, and two symmetrical arms each journalled near its junction with the portion 14 in a fixing bracket 12 and bent round upon itself on the far side of the bracket 12 with the end of the arm secured in the bracket. The portion 14 engages notches in member 19 in the fully open and closed positions and is stressed in passing from one to the other, a roller 21 being provided at the position where the bar 9 receives its maximum stress. Alternatively roller 21 may be omitted. In another form portion 14 engages a notch in the end of a pivoted lever.
Patent GB-1282752-A (GB)
Title: Nuclear reactors
Inventor: PRINCE NORMAN
IPC: G21C15/08
Filed: 1969-01-21
Abstract: 1282752 Cooling reactors UNITED KING- DOM ATOMIC ENERGY AUTHORITY 18 Dec 1969 [21 Jan 1969] 3490/69 Heading G6C In a gas cooled nuclear reactor, e.g. with re-entrant gas coolant flow, the coolant inlet and outlet plenums are adjacent and are separated by a member having either rupture discs or pressure relief valves. The coolant flows from the inlet plenum through the moderating core structure and then reverses to flow through the fuel channels to the outlet plenum. The valves are arranged in pairs, one valve of each pair is arranged to relieve pressure in the opposite direction to the other valve. The separating member is protected against pressure surges by the discs or valves and a shut-down signal may be initiated by the operation of the discs or valves.
Patent GB-298831-A (GB)
Title: Improvements in sliding latch locks
IPC: E05B65/50
Filed: 1928-02-04
Abstract: 298,831. Deutsch, E. Feb. 4, 1928. Hasp fastenings; latches, preventing operation of; latches, sliding.-In a sliding latch, particularly for hasp locks for attache cases &c., of the kind in which the latch bolt 11 is hand-operable by a nozzle 13 through which a key may be introduced to operate a slidable retaining member 14 mounted on the bolt and serving when operated to lock the bolt in shot position by a pro. jection 18 on member 14 engaging an aperture in' the casing, a hand-operable bolt 21 is provided transversely movable at the rear of the latch bolt 11 to retain the latch bolt in shot position. Bolt 21 has a projection 22 which engages behind the tail of member 14 to prevent its retraction, a projection 16 on member 14 at the same time abutting against the rear face of a projection 17 on bolt 11 to prevent retraction of the bolt.
Patent GB-986451-A (GB)
Title: Improvements in or relating to the reduction of oxidic iron ores
IPC: C21B13/08
Filed: 1961-09-01
Abstract: Oxidic iron ores are reduced in a rotary tubular furnace at a temperature below the melting point of iron, e.g. 700-1100  DEG C., by charging the ore into the furnace as lumps, e.g. fired pellets, having a diameter of at least 6 mm., mixed if desired with lime, dolomite of like sulphur-binding agent, and introducing a solid carbonaceous reducing agent in the form of baking and/or gassing coal including brown coal or lignite into the furnace at a point nearer its discharging end but so spaced therefrom to allow the coal to be completely coked or degassed, excess coked coal being separated from the discharged material and recycled into the furnace at a point between the charging end and the point of introduction of the coal, the remainder of the heat required for reduction being supplied by liquid, gaseous or pulverulent fuel introduced into the furnace. Reducing gases and volatiles evolved from the coal are preferably burnt by air fed in a preheating zone located between the charging end of the furnace and the point of introduction of the recycled coked coal.
Patent GB-869653-A (GB)
Title: Improvements in or relating to electrical systems
Inventor: DUNHAM CARLTON ROSSLYN
IPC: G08C15/12
Filed: 1959-02-02
Abstract: 869,653. Electric selective signalling systems. GENERAL ELECTRIC CO. Ltd. Feb. 2, 1960 [Feb. 2, 1959], No. 3603/59. Class 40 (1). A system for obtaining a predetermined sequence of electric signals from a plurality of input paths each comprising a saturable core, is characterized in that to permit the passage of a signal through the input paths the cores are unsaturated in the order in which the signals are required to form the predetermined sequence. A three-phase supply at R, Y, B, Fig. 1, arranges that the cores of the transformers 10-15, each having two primaries wired as shown in Fig. 2, are unsaturated in succession. The windings of the corresponding secondaries then conduct, or do not conduct according to the position of switches 4, 5, 6, the result being a succession of differentiallytimed pulses which pass along line 1 to six corresponding receiving devices 16-21, Fig. 1, and six similarly wired transformers. The corresponding cores of the secondary windings 10-15 and 10a-15a are unsaturated simultaneously and thus, e.g. if the winding 10 conducts and the switch 4 is in the appropriate position a circuit is established to earth through transmission line 1, Fig. 3, transistor 22, indicating lamp 23 and winding 10a. Two lamps for each switch (circuit 16 repeated) indicate the positions of the switches.
Patent GB-101659-A (GB)
Title: An Improved Ventilator.
Inventor: MACGREGOR THOMAS
IPC: F24F7/02
Filed: 1916-03-11
Abstract: 101,659. MacGregor, T. March 11, 1916. Ventilators.-A roof ventilator, which may have a glazed top and serve as a window, comprises a series of cones, louvers, or deflectors b, c, d connected by cross-bars j, j' and guide-bars p', p<3> and operated so that the parts c, d may be lifted and spread apart while remaining parallel to the part b. The cross-bars j, j' are pivoted at k to the louver c, the guide-bars p', p<3> are pivoted at q, q<1> to the parts b, d, and the pivot joints o<1>, o<3>, r<1> move in the channel i on the louvers. Similar guide-bars may be fitted at the ends of the ventilator. The device may be operated by cords and pulleys x<1>, and the operating-cord may have a fusible or combustible part, so as automatically to close the ventilator in the event of fire.
Patent GB-122732-A (GB)
Title: An Improved Spirit or like Level or Device for Aeroplanes or Aircraft.
Inventor: FIELD ROBERT
IPC: G01C9/36
Filed: 1918-03-04
Abstract: 122,732. Field, R. March 4, 1918. Levels and clinometers.-A universal spirit or like level for use on aircraft &c., of the type in which a spherical or partly spherical vessel is filled with spirit or other liquid, is provided with a bead, ball, or like float b which acts as an indicator in place of an air bubble. The flat or shallow holder c has a reflecting surface so that the indicator b can be seen by reflection in certain positions.
Patent GB-305486-A (GB)
Title: Improvements in or relating to wireless transmitting and receiving apparatus
IPC: H03J3/20
Filed: 1929-02-04
Abstract: 305,486. Pfau, G. C. D. Feb. 2, 1928, [Convention date]. No Patent granted (Sealing fee not paid). Coupling aerial and detector circuits; thermionic amplifiers.-A wireless receiver or transmitter is tuned to various wavelengths by shunting an auxiliary coil 3 across the whole or part of the main oscillatory circuit 1, 2, as shown in Figs. 1 to 4. This is stated to maintain a constant coupling factor between the main circuit, the aerial circuit, and associated circuits used for reaction or for preventing interelectrode capacity coupling. A shunt inductance may similarly be inserted across a loop aerial. In the Specification as open to inspection under Sect. 91 (3) (a), Fig. 7, (Cancelled), shows a rejector circuit 60, 61, shunted by an auxiliary coil 82, and coupled to an input circuit 58, 59 similarly shunted by a tuning coil 79. A threevalve set is also described in which a portion of the input inductance may be short-circuited to reduce the wavelength, the reactance coil being split so as to lie half above and half below the input coil. This subject-matter does not appear in the Specification as accepted.
Patent GB-754731-A (GB)
Title: Improvements in or relating to apparatus for and method of making spirally-grooved spherical bearing members
IPC: B23B5/48
Filed: 1954-02-09
Abstract: 754,731. Planing-machines; chucks. THOMPSON PRODUCTS, Inc. Feb. 9, 1954 [May 29, 1953], No. 3854/54. Addition to 749,867. Class 83 (3). A method of machining spiral lubricating grooves in a spherical or substantially spherical bearing-member 20, Fig. 6, consists in bringing a cutting tool 38 into engagement with the surface of the member and then simultaneously rotating the member about its axis through a predetermined arc and moving the tool over the surface, or over a path which is substantially coincident with the generatrix of the surface, in a plane including the axis of the member. The member is mounted on a chuck 69, Fig. 8, comprising a hollow mandrel 68 having fingers expandable to engage the axial bore of the member by a pull-rod 66 with coned head 67. The chuck is fixed to a hollowshaft 33 and the rod 66 extends therethrough for connection to the piston-rod 64, Fig. 6, of a chuck-actuating piston and cylinder (not shown). The member is turned through a predetermined arc by a rack 35, actuated by a piston and cylinder 37, and meshing with a pinion 34 on shaft 33. Tool 38 is adjustably mounted on a holder 93 on an arm 40 extending from a shaft 41 rotatable in a housing 42, which housing is pivoted about the axis 43 of a shaft 70. A roller 46, Fig. 7, is mounted on a shaft 102 supported in ears 101 on the side of housing 42, and a spring-loaded link 103 urges the roller against a cam 49 by which the position of the tool relative to the bearing-member is controlled. Cam 49 is fixed to the rod 50 of a piston and cylinder 51 and in its raised position, in which the tool engages the member, abuts contact-arm 119 which stops the motor 51. Gears 86, 84, 85, 87 interconnect shafts 70, 41 and bevel-gears 52, 53 interconnect shafts 33, 70 whereby rotation of shaft 33 causes rotation of shaft 41, to move tool 38 over the surface of the bearing member. Rotation of shaft 70 is limited by switches controlling motor 37 and actuated by au adjustable cam 54. Three spiral grooves are cut simultaneously in member 20 by tools 38, Fig. 5, equally spaced around the member, each tool being mounted in a housing 42 and driven from the shaft 33. An operating cycle consists in mounting a bearing member in the chuck when the tools are each in position 1, Fig. 2; retracting motor 37 to move the tools to position 2; advancing motors 51 to move the tools to position 3, advancing motor 37 to move the tools to position 4,. simultaneously turning the member 20 to cut the spiral grooves; and finally retracting motors 51 to move the tools to position 1 again.
Patent GB-594478-A (GB)
Title: Polymeric detergents
IPC: C08G8/36
Filed: 1945-02-15
Abstract: Water-soluble surface-active resinous products are made by heating a phenol substituted by a hydrocarbon radical of at least four carbon atoms with formaldehyde in the proportion of 0.5 to 1 p  mol. of formaldehyde to one mol. of phenol to form a condensate, heating the said condensate with one or more mols. of an alkylene oxide, heating the product with a polycarboxylic acid or an anhydride or halide thereof to effect partial esterification of the acid, and neutralizing the product.  Hydrocarbon radicals specified are n-butyl, iso-butyl, tert-butyl, amyl, tertamyl, n-octyl, diisobutyl, decyl, dodecyl, hexadecyl, octadecyl, cyclohexyl, methycyclohexyl, butylcyclohexyl, dicyclohexyl.  Aryl substituted phenols, such as p-phenyl, p-tolyl and p-naphthyl-phenol, may be employed, as also mixtures of phenols, e.g. of p-tert-amyl-and p-diisobutyl-phenols. The formaldehyde may be used as a solution, as paraformaldehyde, or as a formal or hexmethylene tetramine, and may be heated with the phenol in the presence of solvents and/or acid catalysts.  Alkylene oxides specified are ethylene, propylene and butylene oxides, and these may be used with an alkali metal hydroxide as catalyst.  One to six mols. of alkylene oxide are preferred, but twenty mols. are mentioned.  Polycarboxylic acids specified are: succinic, glutaric, adipic, phthalic, tricarballylic, hexahydrophthalic, citric, tartaric, maleic.  The partial esters may be neutralized with the hydroxides, oxides, carbonates or bicarbonates of alkali, alkaline earth, or heavy metals.  In an example, p-(a ,a ,g ,a -tetramethylbutyl) phenol is reacted with formaldehyde, the condensate is reacted with ethylene oxide, and the product so obtained is reacted with succinic or phthalic anhydride.  The products are used in the laundering of cotton fabrics, the scouring of wool, sized, dyed and printed fabrics, the preparation of dispersions, the treatment of leather, dispersing of pigments and in dyeing.  Specifications 494,769, 594,475, 594,476, 594,477 and 594,479 are referred to.
Patent GB-429380-A (GB)
Title: Improvements in or relating to the manufacture of wallboard
IPC: B28B19/00
Filed: 1934-02-07
Abstract: Wallboard consisting of a gypsum core enclosed by paper liners is formed with bevels along its longitudinal edges in the manner described in Specification 429,379.
Patent GB-567426-A (GB)
Title: Improvements in or relating to tubular dielectric condensers
IPC: H01G2/12
Filed: 1943-03-11
Abstract: 567,426. Condensers. PHILIPS LAMPS, Ltd., and HOLMES, R. G. D. March 11, 1943, No. 4005. [Class 37] Means to lengthen the moisture-leakage path to the element inside a tubular condenser are applied to the connecting wires at the point of junction with the element, the whole being then encased in polymerized ethylene, e.g. the substance known under the Registered Trade Mark " Alkathene," or a mixture therewith of polymerized butadiene or isobutylene, or natural or synthetic rubber. The means may comprise metal washers, metal cups, or coatings or sleeves of rubber or like material. Specification 563,500 is referred to.
Patent GB-466049-A (GB)
Title: Improvements relating to the soldering of ceramic materials
IPC: C04B37/00
Filed: 1936-02-11
Abstract: A hard solder for joining ceramic bodies together or to metallic bodies comprises 0,5-10 per cent of copper and the balance silver.
Patent GB-1096721-A (GB)
Title: Apparatus for driving the auxiliary driven devices of an internal combustion engine
IPC: F01P5/12
Filed: 1965-01-29
Abstract: 1,096,721. Driving motor vehicle auxiliaries. SIMCA AUTOMOBILES. Jan. 29, 1965 [Jan. 30, 1964], No. 4137/65. Heading B7H. [Also in Division F1] Means for driving the auxiliaries of a motor vehicle engine comprise an electric motor 2 which is energized through a circuit fed by an enginedriven dynamo or alternator so as to operate at substantially constant speed and drives a radiator cooling fan 6 through a clutch 8 actuated by a thermostat responsive to the coolant temperature. The clutch 8, a water pump 4, fuel pump 10 and oil pump 11 are driven from the motor shaft 9 through respective couplings 28, 27, 30, or may be driven by chain, gear or belt drive. An air-conditioning unit 13 includes a fan driven through a coupling 31 and a clutch 14 which is controlled through linkage 25 from the dashboard 26 or by electromagnetic or thermostatic means.
Patent GB-928950-A (GB)
Title: Wheeled toy vehicles
IPC: A63H19/10
Filed: 1961-02-03
Abstract: 928,950. Toys. LOUIS MARK & CO. Ltd. (Louis Mark & Co. Inc.). Jan. 31, 1962 [Feb. 3, 1961], No. 4232/61. Class 132 (3). [Also in Group XXIV] . A wheeled toy vehicle is driven by an electric motor 16 and has at least one pair of driven wheels 3, the drive from the electric motor being by means of a worm 22 directly or indirectly driven from the output spindle 18 of the motor, which worm extends longitudinally of the vehicle and is in constant mesh with a drive pinion 23 which drives a further pinion 24 secured to the axle or axles of the or each pair of driven wheels. The plastics pinion 23 moulded with stub axles 25 is mounted to rotate in metal plates 26 mounted on a sub frame 2 supporting a weight 7, 8 at each end. The plastics pinions 24 are integral with stub axles which fit on the metal wheel axles which are spaced apart and mounted on the plates 26. The electric motor 16, is supported by projections 17 on the weight 7 and the driving spindle 18 extends through a support 20 and mounts the worm 22, a metal helix in pins 21. The current from a rail passes through the metal wheels and their stub axles to the plate 26, lug 29 connecting wires 28 to the electric motor 16. The body 1 of the vehicle has holes 12 engaging lugs 11 and a forward slot engaging a projection 9. A pair of wheels pivotally supports rods and pistons 30, the free ends of which being accommodated in slots formed in the body adjacent the lugs 15.
Patent GB-414759-A (GB)
Title: Motor-vehicles
IPC: B60G11/08
Filed: 1933-02-11
Abstract: 414,759. Motor vehicles. ALVIS CAR & ENGINEERING CO., Ltd., and CLARKE, G. T. SMITH-, Holyhead Road, Coventry. Feb. 11, 1933, No. 4246. [Class 79 (v).] A motor vehicle having independent front wheel springing has separate drag links 24 for each stub axle connected with an Ackerman steering system 25, 26 carried by the chassis frame and operated by a steering gear 29 arranged in front of it. The spring suspension comprises a single transverse spring 14 carried by the chassis frame 11 and pivoted to the upper parts of brackets 19 carried by the stub axles, and transverse radius arms 22 having damped pivotal mountings 23 on the frame and being also pivoted at 21 to the brackets 19. The stub axles are extended inwardly to form steering arms 17 pivoted to the drag links 24. The rear ends of the drag links are connected to bell crank levers 25 connected together by a track rod 26. One lever 25 is operated by the steering gear 29 through a link 27. The transverse spring 14 is arranged so as to slope slightly rearwardly and is bolted to two channel-section cross members 12 which are placed back-to-back and connect the side members 11 of the frame together. Modifications are described in which (1) the spring 14 is pivoted to a bracket fixed to the channel members 12, and (2) the spring is sloped substantially rearwardly and the drag links 24 are also sloping, being connected to an upper extension of the steering pivot. Specification 409,523, [Group XXXII], is referred to.
Patent GB-1103380-A (GB)
Title: Improvements in or relating to filter inserts for ventilation devices
IPC: B60H3/06
Filed: 1967-01-28
Abstract: A filter insert for a vehicle ventilator, comprising one or more carded fleeces of polyester fibres bonded on at least one side by acrylic emulsion and optionally supported by an integral aluminium mesh (as described in Specification 1,053,285), incorporates granular active charcoal for absorption of carbon monoxide.