baber/WOPTO huggingface dataset:
Patent GB-1241976-A (GB)
Title: Process for preparing sintered pellets of ceramic materials to be used as nuclear fuels and products obtained by the process
IPC: G21C3/00
Filed: 1968-08-02
Abstract: 1,241,976. Actinide oxides. COMITATO NAZIONALE PER L'ENERGIA NUCLEARE. 2 Aug., 1968 [4 Aug., 1967], No. 37063/68. Heading C1A. [Also in Division G6] Sintered pellets of actinide oxides, or mixtures thereof, having an oxygen: actinide ratio of 2 are formed from a powder of actinide oxides, or mixtures thereof, having an oxygen: actinide ratio of 2 or more, and with a specific surface area below 4 m.<SP>2</SP>/g. and particle size less than 40 Á by pressing into pellets and sintering the pellets in a non-oxidizing atmosphere free from hydrocarbons at a temperature between 1150 and 1600 C. for between 1 and 8 hours, the temperature rise being not more than 600 C./hour. The sintering atmosphere may be hydrogen, nitrogen, argon, a mixture of these, or a vacuum. The actinide may be U or Th (see also Division G6).
Patent GB-862712-A (GB)
Title: Soil conditioning and stabilizing with a composition comprising low molecular weight dextran
Inventor: WITT EVERETTE E
IPC: C08F8/00
Filed: 1957-11-28
Abstract: Agricultural soils are stabilized by treatment with a composition comprising 35 to 65% by weight of a hydratable dextran having a molecular weight or average molecular weight between 5,000 and 50,000 and 65 to 35% by weight of (1) a dextran having a molecular weight or average molecular weight of at least 100,000 or (2) a polymeric polyelectrolyte (for preparation see Group IV(a)).  The composition may also comprise nitrogen-fixing bacteria of the genus Rhizobia. The dry, particulate composition may be applied directly to or incorporated in soil to various depths by harrowing, discing, rotary tilling or hand raking, and water may be applied to the soil to solve or swell the dextran. Alternatively, the composition may be applied to the soil in an aqueous spray.  The composition may have small amounts of soluble salts of metals such as copper, zinc, manganese, or the trace elements added, and may be used as a mulch and spread over the plant location to be protected.  The mulch may comprise other organic materials.
Patent GB-1105917-A (GB)
Title: Improvements in or relating to travelling wave tubes
IPC: H01J23/26
Filed: 1965-09-01
Abstract: 1,105,917. Travelling wave tubes. SIEMENS A.G. 1 Sept., 1965 [2 Sept., 1964], No. 37267/65. Heading HID. A travelling wave tube has a helical delay line 1 mounted coaxially within a circular section 5 of a vacuum envelope by a plurality of longitudinally extending insulating supports 2, 3, 4 at least two of which 2, 3 act as locating supports and have a diameter substantially equal to half the difference between the internal diameter of the circular section of the vacuum envelope and the external diameter of the line and at least one of the supports 4 has a smaller diameter than the locating supports and is pressed into contact with the delay line by the central portion of one or more leaf springs 8 arranged in the space between the sprung support and the internal wall of the envelope with opposite ends bearing against the inner wall of the envelope. Each sprung support has a plurality of springs disposed along the length of the line with adjacent edges of the springs abutting one another, the length of a spring in the transverse direction being greater than the length in the axial direction.
Patent GB-1291217-A (GB)
Title: Vacuum capacitor with solid dielectric
Inventor: LINDSAY WESLEY NEWTON
IPC: H01G5/04
Filed: 1971-08-10
Abstract: 1291217 Variable capacitors INTERNATIONAL STANDARD ELECTRIC CORP 10 Aug 1971 [10 Aug 1970] 37479/71 Heading H1M A variable capacitor comprises a fixed electrode forming part of an evacuated envelope of the capacitor and a movable electrode within the envelope separated from the fixed electrode by fluorocarbon dielectric material which also serves as a bearing for the movable electrode. As shown in Fig. 2 cylindrical movable electrode 21 has a coating 19 of P.T.F.E. and can move axially within sleeve 20 constituting part of the fixed electrode, part 16 serving for electrical connection. Bellows 18 may be conductive for electrical connection to the movable electrode. In a modification (Fig. 1, not shown) the envelope comprises two fixed electrodes separated by a ceramic sleeve to form a differential capacitor. Alternatively (Fig. 4) the distance between moving electrode 32 and fixed electrode 30 varies, electrode 32 having cut-out portions to increase its resilience (Fig. 5, not shown).
Patent GB-1367962-A (GB)
Title: Kelly bar assembly
IPC: E21B10/32
Filed: 1972-06-26
Abstract: 1367962 Boring earth &c SMITH INTERNATIONAL Inc 26 June 1972 [1 Sept 1971] 37495/73 Divided out of 1367961 Heading ElF The subject matter of this Specification is identical with that described in Specification 1367961 but the claims are concerned with a kelly having a passage for upward flow of drilling mud.
Patent GB-1368734-A (GB)
Title: Wheel suspension for trailer vehicle
IPC: B60G11/113
Filed: 1971-10-14
Abstract: 1368734 Tandem axle suspension CARVEYOR Ltd 14 Oct 1971 [5 Aug 1970] 37778/70 Heading B7D In a trailer vehicle suspension, a box-like equalizing member 18 which slidably receives the adjacent ends of leaf springs 14, 15 secured to tandem axles 12, 13 is pivotally mounted on frame member 10 by a rubber bush 19 allowing movement of the equalizing member 18 in all directions, and lateral movement of the equalizing member 18 and hence of the adjacent ends of the springs is limited by a pair of blocks 24 carried by one of members 23 interconnecting the frame members 10.
Patent GB-1501275-A (GB)
Title: Angular velocity sensor
IPC: B60T8/32
Filed: 1975-09-16
Abstract: 1501275 Measuring angular velocity  ILLINOIS TOOL WORKS Inc 16 Sept 1975 [20 Sept 1974] 37934/75 Heading GIN A transducer for measuring angular velocity comprises a ferromagnetic toothed wheel 14, Fig. 1, attached to the rotating body, with the teeth 16 facing two coils 26, 30 on toroidal cores 18, 20 spaced one half pitch apart. A permanent magnet 44 is located on the other side of the cores 18, 20 and a U-shaped polepiece 52 attached to the remote side of the magnet has its ends shaped as toroidal cores 54, 56 carrying further coils 28, 32. Cores 18, 54 are a tooth pitch apart, as are cores 20, 56. The four coils are connected in an AC bridge network 45, Fig. 3, and the rotating toothed wheel produces a modulated output at terminals 40, 42, the modulation frequency being proportional to angular velocity. In modifications the toroidal cores are all rotated through 90 degrees and the toothed wheel 14 may be permanently magnetized, eliminating the need for magnet 44.
Patent GB-1453176-A (GB)
Title: Blown plastic container and method of making same
IPC: B65D1/46
Filed: 1974-08-30
Abstract: 1453176 Blow-moulded container OWENSILLINOIS Inc 30 Aug 1974 38008/74 Heading B5A [Also in Division B8] A blow-moulded plastics container comprises a neck portion, a side wall and an arcuate bottom wall, the side and bottom walls each having an outwardly flared peripheral skirt integral at their bottom to form a rim of at least as great a thickness as the side and bottom walls, upon which rim the container can stand upright, and the side and bottom walls having the same thermal history and the skirts being heat-sealed together adjacent the rim. As shown in Fig. 8, the rim is formed of double thickness in the preform blow-mould by moving mould sections 84 upwardly to push in the bottom section 89 of the preform, the two layers being heat-sealed together. The bottom of the article may be formed outwardly convex (Figs. 13-15, not shown) or concave (Figs. 20-21, not shown). In the embodiment of Figs. 22-24 (not shown), the intermediate blowing step is eliminated, the double-thickness rim being formed by movable portions (190) of the single blow-mould (180). Materials mentioned are polyvinyl chloride and polyethylene.
Patent GB-382430-A (GB)
Abstract: 382,430. Capillary-action lubricating. GUINNESS, K. E. L., 10 Cadogan Square, Chelsea, London. Oct. 30, 1931, No. 30153. [Class 12 (iii).] A lubricating device for the actuating collar 27 of a pump plunger consists of a plug of felt 50 housed in a recess 49 communicating with an oil-hole 51.
Patent GB-1183683-A (GB)
Title: Anchor Bolt Assemblies.
IPC: F16B43/00
Filed: 1968-08-12
Abstract: 1,183,683. Applying predetermined tensions to bolts. TORQUE TENSION BOLT CO. (PTY.) Ltd. 12 Aug., 1968 [10 Aug., 1967], No. 38545/68. Heading F2H. An anchor bolt assembly comprises a member 5 anchored in a hole in a structure, a plate 6 bearing on the material surrounding the hole, a rigid member 3, a resilient bush 1 and a washer 2. The member 3 is hemispherical and seats in a hole 6B in the raised portion 6A of the plate. The bush is made of rubber or similarly resilient material and its upper surface is contoured to the shape of the curved washer. The bush has rings of different colour to indicate the amount of tension in the member 5, the tension being applied by tightening a nut 7.
Patent GB-375757-A (GB)
Title: Improvements in or relating to liquid fuel pumps
IPC: F02M59/44
Filed: 1930-12-22
Abstract: 375,757. Lubricating reciprocating pumps. CLERGET, P., 38, Rue Boileau, Paris. Dec. 22, 1930, No. 38579. Convention date, Dec. 27, 1929. Void [Published under Sect. 91 of the Acts]. [Class 12 (ii).] The plunger D of a fuel pump passes through a chamber B containing a lubricant non-miscible with and denser than the fuel. The chamber is provided with a window C, and the lubricant is maintained at the level 1-2 by means of a supply pipe F with cocks m, n. The upper surface R of the chamber B is inclined, in order to permit leakage fuel to rise above the lubricant. The pump draws from a chamber B<1> supplied by a tank A, which communicates also with the chamber B and the pipe F by pipes K, L.
Patent GB-1218916-A (GB)
Title: Improvements in or relating to scarfing of semi-finished products
IPC: B23K7/06
Filed: 1969-08-01
Abstract: 1,218,916. Scarfing. L'AIR LIQUIDE, S.A. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGE CLAUDE. 1 Aug., 1969 [2 Aug., 1968], No. 38790/69. Heading B3V. A vertical side face 4 of a workpiece e.g. steel having a rectangular cross-section is scarfed wholly or partly by a scarfing torch 12 so positioned that both the upper 6 and side 4 surfaces are simultaneously scarfed, the scarfing of the side face 4 being aided by one or more heating burners 16. At the beginning of the operation, the torch is moved from position 10 to 12 and the burner 16 positioned so that its heating flame contacts the side face 4 at a distance a to the rear of the torch axis. The side face 4 is scarfed over a height c and the upper face 6 over a width d. One or more scarfing torches 18 may be positioned below the burner 16, which torches are operated when the oxidized metal melt produced by the torch 12 begins to run down side face 4. After the scarfing has started, the apparatus and workpiece are moved relative to each other. The remainder of the upper face 6 is scarfed either by the torch 42 after the strip of width d has been scarfed or by a row of torches operated simultaneously with the scarfing of the side face 4.
Patent GB-1423069-A (GB)
Title: Nuclear reactor installations
IPC: G21C15/02
Filed: 1973-08-16
Abstract: 1423069 Cooling nuclear reactors INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 16 Aug 1973 [16 Aug 1972] 38870/73 Heading G6C In a nuclear reactor installation (e.g. employing a liquid sodium-cooled, fast reactor) heatexchangers are enclosed in secondary vessels disposed around the reactor bessel, coolant is conveyed between the reactor and secondary vessels by separate ducts forming hot and cold runs, and each secondary vessel is internally divided, by a partition, into two compartments into one of which the hot run opens and into the other of which the cold run opens, the partition affording apertures through which the heatexchangers are suspended. As shown, a cold run 10, provided by a pipe conveying coolant from the pressure side of a pump 4, leads to a core inlet plenum in reactor vessel 1 from a secondary vessel 2 housing heatexchangers 6. A hot run 12, provided by a suction pipe, leads from above the reactor core 3 to the secondary vessel 2 where the hot and cold coolant is maintained separate by a flow apron 9 through apertures of which the heat-exchangers are suspended from a respective shield plug 22. In order to compensate for thermal expansion in the pipes, each run 10, 12 extends, intermediate the vessels 1, 2, to a location above the top neutron shield 13 where the pipes are formed with loops. Gas spaces above the normal coelant levels 7, 8 in the vessels 1, 2 are connected by pressure-equalizing pipes 19. The vessels 1, 2 are surrounded by respective outer containers 17, 18 dimensioned to contain any leakage coolant and, in the instance of rupture of vessel 1, to ensure maintenance of a minimum coolant level 30 in vessel 1. Heated gas can be blown into the interspaces between vessels 1, 17 and 2, 18 for reactor start-up. To prevent all coolant from being withdrawn from vessel 1 in any circumstance, the runs 10, 12 are interconnected, in the region of the loops, by a small diameter pipe 31 which prevents siphon effects. This pipe may include a flow diode to restrict coolant by-pass flow during normal reactor operation. Inlets to the hot run 12 are disposed above the reactor vessel minimum coolant level 30.
Patent GB-849717-A (GB)
Title: Improvements in a method for the heat treatment of materials in vertical shaft furnaces
Inventor: KAFKA FELIX LEOPOLD
Filed: 1958-12-02
Abstract: 849,717. Shaft furnaces. CEMENT ENGINEERS Ltd. Dec. 2, 1958, No. 38903/58. Class 51(2). In the heat treating of fluent solid materials, e.g. cement raw materials, limestone, ores, fly ash, &c., with admixed solid fuel in a shaft furnace, the proportion of free oxygen in the blast is reduced by introducing with said blast, steam, water vapour, re-circulated shaft furnace gas or other inert gases.
Patent GB-829210-A (GB)
Title: Improvements in or relating to ferroelectric data storage devices
Inventor: LEWIS BRIAN
IPC: G11C11/22
Filed: 1956-12-21
Abstract: 829,210. Circuits employing bi-stable ferroelectric devices. GENERAL ELECTRIC CO. Ltd. March 21, 1958 [Dec. 21, 1956], No. 39035/56. Class 40 (9). [Also in Groups XIX and XXXVI] A ferro-electric data storage device in which ferro-electric material having two stable polarization states is interposed between a pair of electrodes, has an electrical connection to one of the electrodes over a path including photoconductive material such that when light is incident on that material its resistance is relative low. As shown, Fig. 1, a matrix store comprises a block 10 of ferro-electric material such as barium titanate having individual gold electrodes 12 on one side and continuous gold strip electrodes 13 on the other side, the connection to the electrodes 12 being from gold strips 15 via photo-conductive strips 11, of a material such as activated cadmium sulphide. Binary information to be stored as alternative polarization states arrives as electrical pulses at the terminal 22, the storage row being determined by a switching circuit 21, the storage column being selected by scanning the columns sequentially with a narrow beam of light 27, which renders conductive the photo-conductive material 11 on which it falls, the input information being synchronized with the movement of the light beam 27 so that in the particular row in which the information is being written a bit is stored only in the element corresponding to that electrode 12 to which a path of reduced resistance is provided by the light beam. Read-out.-The light beam 27 may be utilized in reading out the stored information, the electrodes 12 being so thin that light penetrates into the ferro-electric material, causing a rise in temperature which affects the polarization of the material, a signal of polarity depending on the polarity of the polarization of the ferro-electric material being produced, which signal is applied to the corresponding lead 16-20, the particular lead required for read-out being selected by the switch 21, and the output signal appearing at 26 after amplification and detection at 24. Alternatively, read-out may be accomplished by applying a suitable voltage pulse in a given sense resulting in a large or negligible polarization change according to the binary digit stored. Specification 823,187 is referred to.
Patent GB-346854-A (GB)
Title: Electric protective arrangements
IPC: H02H7/26
Filed: 1929-12-23
Abstract: 346,854. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, LANE, F. J., 97, Harlesden Gardens, Harlesden, and BENNETT, L., 199, Melrose Avenue, Crickle. wood, all in London. Dec. 23, 1929, No, 39282. [Class 38 (v).] Relates to a system comprising polyphase, parallel feeders 2, 3, particularly overhead feeders, having different phase-to-earth impedances and circulating current (as shown) or opposed voltage interphase fault protection by means of current transformers 14, 15, the twin ratios of which correspond with the relative phase-to-neutral impedance of the feeders. In order to provide balance against through-earth faults as well as interphase faults, the earth fault relay 23 is associated with an auxiliary circulating current (as shown) or opposed voltage circuit, interlinked with the common neutral return conductor of the circuit including the interphase fault relays 8, 9, 10 by compensating current transformers 20, 21 having ratios corresponding to the phase-to-earth impedance of the feeders. All the relays have potential windings and double contacts so as to give discriminate operation of the breakers 4, 5. To prevent operation of the relays 8, 9, 10 on earth faults, they may be given a high setting or, alternatively, a time delay to permit the relay 23 to operate first. The transformers 20, 21 may have tappings for adjusting the auxiliary circuit.
Patent GB-1023176-A (GB)
Title: Process for the preparation of acrylic acid esters
IPC: C07C67/327
Filed: 1962-10-17
Abstract: Esters of acrylic acid are prepared from b -alkoxy carboxylic acid ester in the presence of a dehydration catalyst by heating between 100 DEG  and 200 DEG  C.  The product is distilled off continuously from a column in the reaction vessel and the b -alkoxy ester which flows in continuously at a rate corresponding to the rate at which the product is distilled off contains water not exceeding 11% by weight, preferably from 3 to 10%.  The dehydration catalyst may be sulphuric, phosphoric, sulpho-acetic, p-toluene sulphonic, polyphosphoric acids, fluorinated or chlorinated sulphuric and phosphoric acids, methyl sulphuric acid and dimethyl sulphate. Examples describe the preparation of acrylic acid methyl, ethyl and butyl esters.
Patent GB-1517180-A (GB)
Title: Method of manufacturing ceramic elements whose resistance varies as a function of voltage and components manufactured using the aforesaid elements
IPC: H01C7/112
Filed: 1975-09-26
Abstract: 1517180 Varistors THOMSON-CSF 26 Sept 1975 [1 Oct 1974] 39622/75 Heading C1J [Also in Division H1] In a method of manufacturing ceramic elements, e.g. varistors, a mixture comprising oxides or salts of Zn, Sb, Bi, Co with either the oxides/salts of Mn, Mo or oxides/salts of Ce and oxides/salts of Mn or Mo is treated to yield an oxide compound comprising 94 to 99.5 mole per cent ZnO and 0À1 to I mole per cent of each of the other oxides.
Patent GB-872820-A (GB)
Title: Antiknock fluid
IPC: C10L1/30
Filed: 1958-12-09
Abstract: A gasoline composition containing an organolead antiknock agent also contains for every part by weight of lead 0.0011 to 500 parts by weight of manganese as a cyclopentadienyl manganese tricarbonyl compound, and 0.00003 to 132 parts by weight of phosphorus, arsenic or antimony as a gasoline-soluble compound thereof.  The gasoline may contain 0.02 to 13.2 grams per U.S. gallon of lead.  The composition may contain esters of phosphorus acids, phosphines, phosphonitrilic dichloride, phosphorus sesquisulphide, arsines and stibines.  In examples gasoline compositions and antiknock compositions for addition to gasoline, contain tetraethyl lead, diphenyldiethyl lead, tetramethyl lead, tetraphenyl lead, diisopropyldiethyl lead and tetrabutyl lead; cyclopentadienyl manganese tricarbonyl, phenylcyclopentadienyl manganese tricarbonyl, methylcyclopentadienyl manganese tricarbonyl, indenyl manganese tricarbonyl, ethylcyclopentadienyl manganese tricarbonyl and fluorenyl manganese tricarbonyl; tris (b -chloropropyl) thionophosphate, tricresyl phosphate, dimethyl monotolyl phosphate, dimethylxylyl phosphate, dimethylphenyl phosphate, dibutyl methane phosphonate, tributyl arsine, triphenyl stibine and triethyl antimonate; and ethylene dichloride, ethylene dibromide and trichlorobenzene.  Other suitable compounds are mentioned.  Specification 781,065 is referred to.
Patent GB-1432949-A (GB)
Title: Silicon dioxide semiconductor product containing boron trioxide and phosphorus pentoxide dopants
IPC: H01L29/00
Filed: 1972-08-25
Abstract: 1432949 Semi-conductor devices PLESSEY CO Ltd 2 Aug 1973 [25 Aug 1972] 39669/72 Heading H1K The ratio of boron to phosphorus in a silicon dioxide layer containing both is chosen so that the layer may be etched at the same rate as, e.g. undoped silicon dioxide. The doped layer contains 10-25 (preferably 15) wt. per cent boron trioxide and 10-30 (preferably 20) wt. per cent phosphorus pentoxide, the balance being silica. The layer may be formed by the thermal interaction of silane, phosphine, diborane, an oxygen. A typical etchant comprises 4 parts saturated ammonium fluoride solution and 1 part hydrofluoric acid. The use of the doped silica is illustrated in the manufacture of an IGFET. A silicon substrate 4 has an area of a thermal oxide layer 2 replaced by a thermal oxide film 8 and this is covered by polycrystalline silicon 10. Diffusion apertures for source and drain are etched through layers 8 and 10, and diffusion is effected. At the same time as or subsequent to the formation of the source and drain regions (not shown) an oxide layer 17 is formed. The boron and phosphorus doped silica layer 18 is then deposited and the structure heated to smooth the contours of this layer. Source and drain contact apertures are then etched through layers 18 and 17 and a further contour smoothing may be effected. Aluminium (not shown) is then deposited overall, and removed where not required. A protective silica layer (not shown) may be applied overall.