baber/WOPTO huggingface dataset:
Patent GB-955505-A (GB)
Title: Improvements in or relating to electron microscopes
Inventor: GUYENOT ERNST
IPC: H01J37/22
Filed: 1960-08-23
Abstract: 955,505. Electron microscopes. CARL ZEISS JENA VEB. Aug. 23, 1960, No. 29168/60. Heading H1D. [Also in Division G1] In an electron microscope the target 8, a luminescent screen which may be tilted out of the way of a photographic plate (not shown) disposed behind it, is connected by cable 7 to one of a pair of deflection electrodes 3, 10 which may form part of a stigmator system for correcting axial astigmatism. The other deflection electrode 10 is connected to a voltage supplying circuit, the compensating voltage it is necessary to apply to nullify the deflection of the beam providing a measure of the charge and hence of the brightness of the beam spot. The deflecting system may be periodically and automatically earthed to return the beam periodically to its original position for checking purposes.
Patent GB-706809-A (GB)
Title: Improvements in or relating to firegrate assemblies
IPC: F23H13/00
Filed: 1951-12-13
Abstract: 706,809. Firegrates. OUZLEDALE FOUNDRY CO., Ltd., ASHBY, G. N., and WILSON, E. Dec. 10, 1952 [Dec. 13, 1851], No. 29173/51. Class 126 In the "continuous burning" type of open firegrate assembly the grate member may be adjusted within limits to suit the rearward depth of the fireplace by providing detent means internally of the fret or front part of the assembly or on the grate member which engages with any given set of co-operating members of a series thereof on the grate member or internally of the fret or front portion as the case may be. In the embodiment shown the fret 11 is provided internally of each side ;with a bracket 14 which has a vertical slot to accommodate an integrally cast peg 16 on the underside of the corresponding edge of the grate member 13. The brackets 14 are of such a height that the front of the grate member is supported thereby and by legs 15 at the rear. There are three such pegs 16 at each side of the grate forming three pairs it being possible thus to mount the grate in one of three alternative positions. At the rear of the grate are cast extensions 17 which can be sawn or fractured if necessary in order to fit the grate. Air is admitted to the underside of the grate through an ash door 12 which is pivotally mounted in an aperture in the fret 11 by means of a hook 18 at each end engaging over a lug 19 at the side of the aperture. The pivotal movement of the ash door 12 is controlled bv the interengagement of a handle (23) operated cam surfaced (21) quadrant 20 mounted on the door and an abutment 24 in the lower edge of the aperture. A stop 25 on the door limits rotation of the quadrant in one direction. As an alternative door mounting, the door may be mounted in the aperture on a bar journalled for rotation.
Patent GB-885103-A (GB)
Title: Improvements in or relating to methods and devices for rolling bevel gears
IPC: B21H5/04
Filed: 1959-08-26
Abstract: 885,103. Making gears; rolling. ERDELYI, F. Aug. 26, 1959, No. 29210/59. Classes 83 (2) and 83 (4). In a method of rolling bevel gears a blank is clamped, heated in the ready clamped condition to the working temperature and directly thereafter, without unclamping, the teeth are rolled by at least one bevel gear tool, the bevel gear being then unclamped and ejected. Bevel gear blanks received from a container 34 are clamped at a station A, Fig. 5, by an hydraulicallyoperated chuck 80, Fig. 4, to the face of disc support 74, fluid being introduced above the piston 44 for the clamping pressure. Eight such clamping devices are arranged on an hydraulically - rotated or motordriven rotary work-table 3 which is indexed through work - stations A-H to deal with a series of blanks successively. The station A is a loading and clamping station, B, C and D being heating stations where the work is unduetively heated in the frequency range 5000-10,000 cycles/sec, by heaters 36, 37, 38 (Fig. 2, not shown), the work being raised for heating above the table level by hydraulic supports 56, Fig. 6, which raise the whole clamping assembly 41, 69, 74 and lower it prior to indexing. At station E a first rolling operation is performed, followed by a reheating at station F, a final rolling at station G and unclamping and ejection of the work at station H. The work is unclamped by admission of fluid below the piston 44 and is ejected by admission of fluid below a piston 43 which forces an ejection rod 66 and the support disc 74 upwards against a return spring 87. Three bevel roller tools 6 are mounted on each of housings 102 (not shown), and 103 at the stations E and G and are driven through bevel gearing from a common shaft 90, Fig. 9 (not shown). The tool mounting is adjustable axially of the drive spindle 108 by a worm-operated screw and nut assembly comprising a non-rotatable body 110 axially retained on the spindle 108 and axially adjusted by a nut 117. The work is rotated at each station in synchronism with the tool drive through shafts 20, 23, bevel gearing, a sunwheel 26 and finally through a pinion 28, attached to each work clamp assembly. During rolling, the work is first raised by a low-pressure fluid supply to the cylinders 65 until the work contact the tools, a high-pressure supply then further raises the work to its maximum height to complete the rolling. Since rolling pressures are considerable the upper and lower parts of the machine Housing are held together by a tie 7 on the axis 4 of the work-table. Cooling water is supplied to separate chambers of the work-table and to the tools 6 through an inlet 145 to circulate through the hollow tool spindle and leave by an outlet 139.
Patent GB-172480-A (GB)
Title: Improvements in drying racks and the like
IPC: D06F57/12
Filed: 1920-10-15
Abstract: 172,480. Kennedy, R. M. Oct. 15, 1920. Supports for articles to be heated.-A drying rack &c. mounted on a standard on a gas or other stove is capable of rotatable adjustment horizontally about the standard; the main part of the rack is pivoted so that it may be turned into a vertical out of the way position; the standard may be telescopic. The apparatus shown comprises a base 2 which can be clamped to the top of a stove and supports a hollow standard 1. Within this standard, which is split longitudinally and provided with a clamping clip 5, a tubular rod 8 is supported at an adjustable height and carries the rack 9 by means of a socket or spigot connection. The rack comprises an end bar 10 to the ends of which a bent metal frame 13 with cross bars 16 is pivoted so that it can be turned upright, notches 15 maintaining its position. Extra arms 17 are pivotally supported by slotted blocks 18, Fig. 6, in positions either alongside or at right angles to the sides of the rack. The end of the frame 13 is provided externally with a rail similar to a towel rail.
Patent GB-1456170-A (GB)
Title: Method of controlling annual weeds in paddy fields
IPC: A01P13/02
Filed: 1975-07-11
Abstract: 1456170 Combating weeds in paddy fields HODOGAYA CHEMICAL CO Ltd 11 July 1975 [12 July 1974] 29255/75 Heading ASE A method of controlling annual weeds in paddy fields comprises applying to the flood water after emergence, 15 g or more of 3, 4- dichloropropionanilide (propanil) and 0.2-2.5 g of #-naphthyl-N-methyl carbamate per acre (100 m<SP>2</SP>) of the paddy field without directly contacting the said chemicals with the foliage of the plants. The active ingredients may be applied together or sequentially. Comparison with propanil/carbaryl compositions is made.
Patent GB-648041-A (GB)
Title: Rotary take-up for sewing machines
IPC: D05B51/00
Filed: 1948-11-11
Abstract: 648,041. Sewing - machines. SINGER MANUFACTURING CO. Nov. 11, 1948, No. 29326. Convention date, July 27. [Class 112] Lock - stitching take-ups. - In a rotary needle-thread take-up comprising a thread - engaging member r revolved about a centre at non-uniform angular velocity in a non- circular orbit, abnormal winding of the thread on the member in case of breakage is prevented by a stationary thread-breaking element placed within the orbit of the thread-engaging member but at a distance from the centre greater than the minimum distance of the member. In the embodiment shown, a take-up pin 19 is carried on a disc 24 revolvable on a disc 23 and driven therefrom by sun-and-planet gearing, and the threadbreaking element is constituted by a pin 27 projecting inwards from a cover 31 hinged at 32 so as to be self-opening when unfastened. The take-up discs 23, 24 have channels 28, 29 to clear the pin 27 in their rotation. Specification 639,516 is referred to.
Patent GB-210170-A (GB)
Title: Improvements in or relating to gas or air distributors for internal-combustion engines of the radial cylinder type
IPC: F02N99/00
Filed: 1922-10-27
Abstract: 210,170. Fedden, A. H. R., Butler, L. F. G., and Bristol Aeroplane Co., Ltd. Oct. 27, 1922. Valve gear.-In a distributor for supplying air or gas to the cylinders for starting a radial-cylinder engine comprising a stationary annular chamber 21 coaxial with the engine shaft 14 and having outlets 22 controlled bv valves 23, the valves are held by the gas pressure in contact with a cam member 27 on the main cam sleeve 13 of the engine. The cam sleeve 13 is driven from the engine shaft 14 through a spur gear 16 rotatable on an eccentric 17 on the shaft 14 and engaging internal teeth 15 on the crank case 10, the gear 16 being secured to a coaxial internallytoothed wheel 18 meshing with a gear 19 secured to the drum 13. The valves mav be arranged radially and actuated by a cam on the circumference of the cam sleeve 13.
Patent GB-340047-A (GB)
Title: Improvements in cleaning of metal surfaces
IPC: C23G1/02
Filed: 1929-09-28
Abstract: A coating composition for removing rust and oil from metal surfaces, for example metal vehicle bodies, comprises compatible rust and oil solvents and a finely divided thickening agent, inert at ordinary temperatures, but reacting with the rust solvent on heating or drying and thereby rendering the composition friable and self-peeling. Examples of rust solvents are phosphoric, selenic, oxalic, acetic, tartaric and citric acids; suitable oil and grease solvents are organic water-miscible substances such as alcohols, ketones, for example ethyl-methyl-ketone, and esters. The thickening agent may be raw sienna or a metallic oxide such as ferric or manganese oxide.  An absorbent pigment such as willow charcoal or lamp black may be added. Any residue of the coating remaining after heating or drying is removed mechanically and the cleaned article may be subsequently washed in alcohol and wiped dry.
Patent GB-728354-A (GB)
Title: Improvements in or relating to refractory mineral fiber and its method of production
Inventor: HAHN WILLIAM PETER
IPC: C03C13/06
Filed: 1953-10-26
Abstract: 728,354. Mineral wool. JOHNS-MANVILLE CORPORATION. Oct. 26, 1953, No. 29524/53. Class 56. A method of producing refractory mineral wool, which has good chemical and strength stability at temperatures at least as high as 2000 ‹ F. comprises fusing a mixture, preferably finely ground, of approximately 100 parts by weight of kyanite and 6-12 parts by weight of silica to a fluid consistency and fibreizing the fluid. The resulting wool has substantially the following composition: Al 2 O 3  51-55 per cent, SiO 2  43-47 per cent and the balance chiefly Fe 2 O 3  and TiO 2 , there being less than 0.5 per cent alkaline earth oxides. The wool is finely fibreized and easily cleaned of unfibreized shot by shaking or pneumatic cleaning procedure. The fibreizing operation is preferably carried out by steam blowing or rotating roll spinning method, the kyanite and silica being fused in an electric resistance furnace.
Patent GB-888832-A (GB)
Title: Reforming gasoline range hydrocarbons in the presence of ammonia
Inventor: FLEMING RICHARD
IPC: C10G35/085
Filed: 1960-08-26
Abstract: A naphthene-free (i.e. containing less than 10% by volume of naphthenes) gasoline fraction is treated to increase its octane number by contacting with a platinum reforming catalyst under reforming conditions in the presence of added hydrogen and an amount of ammonia sufficient to provide 2-100 p.p.m. and to effect an improvement in the yield-octane relationship of the product.  In a multi-stage reforming process the ammonia may be added before the final stage; another suitable feedstock is a reformed product from which aromatics have been removed leaving mostly paraffins.  The ammonia is added as such or as an amine.
Patent GB-1004345-A (GB)
Title: Basic electrolyte element for high temperature fuel cells
IPC: H01M8/14
Filed: 1962-08-01
Abstract: 1,004,345. Fuel cells. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJUERHEID, HANDEL EN VERKEER. Aug. 1, 1962 [Aug. 16, 1961], No. 29577/62. Addition to 916,910. Heading H1B. A high temperature fuel cell has an electrode element comprising a mixture of 40-60 wt. per cent of magnesium oxide with a particle size of less than 3 Á and 60-40% of a salt or mixture of salts which is/are molten at the working temperature of the cell (see the parent Specification), the element being in the form of a tube 4 with electrodes 2, 3 and gas pipes 5. Specification 850,706 also is referred to.
Patent GB-291676-A (GB)
Title: Liquid level gauge, especially for steam-boilers and the like
IPC: F22B37/78
Filed: 1927-11-04
Abstract: 291,676. Holfert, M. W. Nov. 4, 1927. Gauge glasses.-A liquid-level gauge for steam boilers comprises a gauge glass a secured in stuffing boxes d carried by the boiler fittings f, g. The outer ends of the passages in the fittings f, g are closed by glass discs m which may be formed as lenses, or may have lenses arranged above or below, or may be coloured. Small electric lamps o are arranged in hoods n, the inner surfaces of which may be reflecting, and an opaque float q follows the water level. One or both of the lamps may be coloured. The glass tube may have a protecting tube b, the inner surface of which may be light-coloured, and the glass itself may be in part opaque. A modification is described in which the gauge conduit is of metal, closed by a flat glass plate on one side. A lamp may be provided at the top only or at the ends, and the float may consist of a transparent coloured disc having a depending portion to keep it horizontal, or an opaque float may be used.
Patent GB-1418280-A (GB)
Title: Oxygen sensor coated with catalytic material
IPC: G01N27/407
Filed: 1974-07-04
Abstract: 1418280 Oxygen sensor NISSAN MOTOR CO Ltd 4 July 1974 [24 July 1973] 29614/74 Heading G1N A solid electrolyte oxygen sensor has a porous electrode (12A, 12B) on each side of the solid electrolyte 19 and a coating of porous inorganic material 15 impregnated with a catalyst for oxidizing oxidizable components in the gas to be measured coated on the outer electrode 12B. The inner electrode 12A contacts an oxygen reference gas. The solid electrolyte is a solid solution of CaO with one of ZrO 2 , CeO 2  and ThO 2  and the electrodes are platinum. The porous material may be γ-Al 2 O 3 , a hardened aluminous cement containing Al 2  O 3 .CaO as principal component or baked kaolin or bentonite. The catalyst may be platinum or palladium. The γ-Al 2 O 3  catalyst layer may be formed by plasma spraying α-Al 2 O 3  on to the outer electrode 12B, reducing the temperature so that the α-Al 2 O 3  converts to γ-Al 2 O 3 , impregnating this with chloroplatinic acid and heating the impregnated layer in hydrogen for 3 hours at 550‹C. The sensor may be used in vehicle exhausts and exhibits a sharp voltage change at the stoichiometric air/fuel ratio.
Patent GB-1077466-A (GB)
Title: Pressure-responsive devices and methods of making the same
Inventor: COOPER LAWRENCE EARL
IPC: H01H35/26
Filed: 1964-07-23
Abstract: 1,077,466. Fluid actuation of switches; thermal switches. TEXAS INSTRUMENTS Inc. July 23, 1964, No. 29650/64. Heading H2B. A pressure-responsive device 11 is made by securing a permanently deformable diaphragm 20 between two casing parts 12, 14, applying a controlled fluid pressure into cavity 18 through aperture 138 to permanently stress and deform the diaphragm to a desired configuration, which may or may not be snap-acting, and locating, a motion-transfer pin 140 for reciprocable movement in aperture-138, whereby movement of diaphragm 20 in response to predetermined pressure changes in cavity 16 causes pin 140 to actuate an electric switch, the diaphragm returning to its initial position upon release of the pressure applied through port 30. The diaphragm may be bimetallic (Fig. 4, not shown), and the device is then responsive to a combination of predetermined pressure and temperature conditions, and can be adapted to respond solely to predetermined temperature conditions or predetermined pressure conditions. Screw member 130 is adjustable, and casing part 12 may carry a second adjustable abutment (150) for the diaphragm, (Figs. 3, 4, not shown). The motion transfer pin (340) may actuate a snap-acting disc (370) to actuate a switch (Figs. 5, 5a, 6, not shown), the position of disc (370) being adjustable. Casing parts 12, 14, and diaphragm 20 may be of materials having different coefficients of thermal expansion so that the device is responsive to a predetermined combination of pressure and temperature conditions. The switch actuated by the device is normally open, normally closed or changeover.
Patent GB-305281-A (GB)
Title: New or improved devices for securing wheels, pulleys and the like to running axles
IPC: F16D1/091
Filed: 1927-11-07
Abstract: 305,281. Stone & Co., Ltd., J., and Honey, A. E. Nov. 7, 1927. Securing gear-wheels, pulleys, &c. on shafts.- In means for securing to railway and other running axles, pulleys, gear-wheels. &c., or hub members which may be subsequently turned down and secured to the wheel by keying &c., the wheel &c. hub a, Fig. 1, is formed in halves, one or both ends a<1> of which are split and surrounded by rings b also formed in halves inter. connected by bolts. The split ends are pressed upon the shaft by radial screws g, intervening steel pads f with conical or spherical inner faces f<1> being employed. In a modification, Fig. 8, rings are each formed in halves with adjacent rectangular or circular lugs j<1> which are connected together by similar rings m held in position by bolts n. The rings j are internally tapered to engage corresponding surfaces on the exterior of the hub a and are drawn together by bolts k. The hub may be split at one end only, the bolts k engaging the ring j and the web h on the hub. The hub and the shaft may be tapered. Frictional material may be inserted into the inner surfaces of the hub, is desired, only within the ends a<1>. The ends of the ring b or j may be interconnected by dovetailing.
Patent GB-287019-A (GB)
Title: Improvements in moulding machines
IPC: B30B11/24
Filed: 1927-11-08
Abstract: 287,019. Sizer, A. W. Nov. 8, 1927. Extrusion machines.-In worm screw machines for poultry food &c. the worm is made of substantially smaller diameter than the casing for the greater portion of its length and terminates in a half convolution of substantially the full diameter of the casing. As shown, the worm 5, rotating a liner 7 in the casing 6, is formed with a portion 9 having a diameter of about four-fifths of that of the liner 7, and terminates in a half convolution oi full diameter which is fitted with a renewable slipper 11. The liner 7 is grooved helically, the grooves being eccentric with the grooves deeper at the top than at the bottom. The portion 9 may be slightly tapered towards the rear and may pass to the terminal portion through one or more whole or partial convolutions of intermediate diameter.
Patent GB-383730-A (GB)
Title: Improvements in or relating to derricks or like hoisting apparatus
IPC: B66C23/52
Filed: 1931-10-28
Abstract: 383,730. Derricks ; ships ; boathandling apparatus. MARCHAUT, P. J., 28, Rue de la Briche, St-Denis, Seine, France. Oct. 28, 1931, No. 29931. Convention date, Oct. 29, 1930. [Class 78 (iv).] A derrick boom 1 is pivoted at 2 on a carriage 3 which is movable towards and away from a supporting mast (not shown). The apparatus is particularly suitable for use on ships for handling heavy loads over the stern and for raising boats, hydroplanes, &c. and transporting them along the deck. It may also be used on land or on pontoons. The carriage 3, Fig. 1, is moved along racks 6 by a motor which drives rack-engaging pinions through a clutch and transmission shafts, and the motor also drives a winch 8 for hauling on the rope 9 which is anchored to the stationary mast and serves for raising and lowering the derrick when the carriage is at rest The load rope 32 is wound on a winch 21 either on the carriage or at the foot of the mast. The load rope may be held fast by a clamp 33 on the carriage. In a modification, Fig. 3, the derrick 27 is mounted on a pivot 28 on the carriage 3, and is slued by a motor on a platform 29 driving a pinion in engagement with the rack 30. The load-rope passes through a tubular guide 31. In modifications, Figs. 4 and 5 (not shown), the device is mounted on a barge for lowering blocks over the stern on to a dyke under construction, and on a ferry boat for handling railway rolling stock. The Specification as open to inspection under Sect. 91 comprises also two modifications (Cancelled Figs. 4 and 5, not shown), in which the derrick is supported by stays on the carriage 3 and is slued by rack-and-pinion gearing or by a winch ; and Cancelled Figs. 8-17 which show a plan of Fig. 5, and variations of Figs. 1 and 2, but are not further described. This subjectmatter does not appear in the Specification as accepted.
Patent GB-658962-A (GB)
Title: Cell for the electrolysis of salt solutions
IPC: C25B9/20
Filed: 1947-11-12
Abstract: 658,962. Electrolytic cells. KREBS & CO., Ltd. Nov. 12, 1947, No. 30074. Convention date, Nov. 28, 1946. [Class 41] A cell for the electrolysis of solutions comprises a plurality of anode box elements, each element comprising a number of anodes secured with a large contact surface area on a metallic framework directly connected to an electric current supply, the anode elements alternating with cathode box elements each consisting of two perforated spaced cathodes reinforced with a frame, the outer cathode box elements containing only one cathode each and forming the outer vertical side walls of the cell. As shown, each anode box 2 has the lower part formed with a trapezoidal groove 3 in which are fitted the lower ends of anodes 1. Non-hardening putty 4 is used to ensure a tight seal. Each anode box is externally coated with electrically insulating composition 16, for example vulcanized rubber. The anodes are impregnated, adjacent their contact with the anode boxes, with conducting material which will prevent access of the electrolyte. The cathode boxes, with the exception of the outer boxes, are each formed of two perforated cathodes 7 reinforced by a frame 8. A diaphragm (not shown) is arranged between each anode box and cathode box. The boxes are provided at their bases with flanges to which connection is made to a source of current. The boxes are clamped together by rods 15 the length of which varies according to the number of boxes in a cell.
Patent GB-805302-A (GB)
Title: Separation of plutonium
IPC: G21C19/46
Filed: 1947-11-12
Abstract: Plutonium is extracted from an aqueous nitrate solution, in which it is present together with uranium and/or fission products, by treating the solution with triglycoldichloride containing a saturated aliphatic aldehyde having at least two carbon atoms per molecule, benzaldehyde, or a polyhydric phenol having hydroxyl groups in the ortho or para positions.  Plutonium passes into the solvent phase in preference to uranium and fission products, which remain in the aqueous phase.  The solution treated may be obtained by dissolving neutron-irradiated uranium in nitric acid, adjusting the acidity to 1 to 3N, and adding ammonium, calcium, or magnesium nitrate.  Tables show the effect on the distribution coefficient of plutonium between the aqueous and solvent phases of adding to the solvent small amounts of acetaldehyde, propionaldehyde, n- and iso-butyraldehyde, benzaldehyde, hydroquinone, 2,5 - dichlorohydroquinone, catechol, and pyrogallol.