baber/WOPTO huggingface dataset:
Patent GB-885060-A (GB)
Title: Process for the recovery of zirconium values
IPC: C22B34/14
Filed: 1958-06-18
Abstract: Alkali metal zirconates are obtained from a zirconium silicate ore such as zircon, by adding an alkali metal hydroxide to said ore and heating the mixture in the presence of a preformed alkali metal zirconate, the alkali metal being added at a rate p  insufficient to form a melt.  The reaction may be conducted in a fluidized bed maintained by a stream of air, nitrogen or other gas inert to the hydroxide, zircon and alkali metal hydroxide being added to the bed whilst the resultant frit is withdrawn therefrom. A rotary calciner in which the mixture is tumbled may alternatively be employed.  The preferred temperature of operation is 500 to 600 DEG  C.  The alkali metal hydroxide used preferably contains less than 50% of water: anhydrous alkali metal hydroxides can be used and also more dilute alkali metal hydroxides, but in the latter case some of the water has to be evaporated.  Alkali metals referred to are sodium, potassium and lithium.  Specification 885,061 is referred to.
Patent GB-1465826-A (GB)
Title: Indolypiperidyl-butyrophenones and indolyl-1,2,5,6-tetrahdro pyridyl-butyrophenones
IPC: C07D401/04
Filed: 1974-05-03
Abstract: 1465826 Derivatives of hydrogenated 4-(3- indoyl)pyridines BOEHRINGER INGELHEIM GmbH 3 May 1974 [4 May 1973] 19623/74 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R 2  is H or Me, R 3  is Me or Ph, and either (a) R 4  and R 5  are each H, or (b) R 4 -R 5  forms a further C-C bond, R 1  being (a) Cl, Me or CF 3 , or (b) H, Me, MeO, Cl or CF 3 . These compounds are prepared by reacting an analogue in which the N of the C 5 N-ring is unsubstituted, with X being (e.g.) halogen; additionally, the tetrahydropyridine compounds may be made by reacting the appropriately substituted indole with an analogue of III in which X is 4-oxo-1 piperidyl, and may be reduced to the piperidine compounds. Starting materials, the preparation of which is described, are 4-(5-chloro-2-methyl-3-indoyl)- piperidine and -tetrahydropyridine, and their N-(C 5 N-ring)acetyl derivatives. Therapeutic compositions having neuroleptic activity comprise compounds of the above formula, and may be administered orally, parenterally or rectally.
Patent GB-1316912-A (GB)
Title: Axial-piston pump units
IPC: F04B1/32
Filed: 1971-06-09
Abstract: 1316912 Reciprocating pumps LINDE AG 9 June 1971 [10 June 1970] 19686/71 Heading F1A Two adjustable-stroke, axial-piston pumps 3 are mounted in a common housing 1, driven by a common shaft 4 through gearing 5, 6 and fed by a common auxiliary gear pump 9, 10 on the driveshaft 4. The passages between the pumps are formed in the housing and bulkhead 7. Shaft 4 also drives a pump, generator or compressor 13.
Patent GB-1087044-A (GB)
Title: Improvements in or relating to methods of fabricating electrical devices
Inventor: CONNAH DAVID MALCOLM
IPC: C23C14/04
Filed: 1965-05-11
Abstract: An electrical device, e.g. a cryotron, is formed by vapour depositing (1) a conducting layer of e.g. lead on a substrate of e.g. glass, (2) an insulating layer of e.g. silicon monoxide (3) a superconducting layer of e.g. tin, (4) an etch resistant layer of e.g. silicon monoxide or a polymer, (5) a layer of lead, and (6) a photo-resist. The photo-resist is exposed through a mask and the top lead layer or the lead and tin layers are selectively etched by e.g. HNO3. Residual etchant is washed away and the resist removed with acetone.  Further layers of silicon monoxide and lead may be deposited.  The top layers of lead may also be etched to form a control conductor using 10% acetic acid + H2O2 in a ratio of 4 : 1.  The cryotron is given a final protective layer of silicon monoxide.
Patent GB-425604-A (GB)
Title: Improvements in or relating to burners for oil-fired furnaces
IPC: F23C99/00
Filed: 1933-07-13
Abstract: 425,604. Liquid - fuel burners. FRASER, R. P., 20, Margravine Gardens, Baron's Court, London. July 13, 1933, No. 19846. [Classes 75 (i) and 75 (iii)] An oil burner or a housing therefor or connected thereto is provided with means for raising the burner or housing and a small quantity of oil above a predetermined temperature during the non-operation of the burner while the oil passing to the burner during its operating periods is heated by heat conducted by a collecting member projecting towards the burner flame. The heating means may be continued in action during the operating periods of the burner. In Fig. 1, the oil passes to the burner jet 6 through one or several chambers 8 formed in a housing 4 and is atomized by compressed air discharged from a chamber 16 through a jet 5. During non-operation of the burner, the heat from a gas jet 13 burning in a tube 12 passing through the housing is sufficient to raise the oil in the chambers 8 to a minimum temperature of say 110‹ F. When the burner is in operation heat is also conveyed to the chambers 8 by a bevelled member 12<1>, preferably of copper or aluminium, projecting into the furnace. To prevent overheating the housing may be formed with fins 17 arranged in the path of the secondary air passing through a casing 15 to an aperture 3 in the furnace wall. The gas jet 13 may serve as an igniting flame for the burner. Fig. 3 shows a burner 18 supplied with fuel through a housing 21, 23 comprising two chambers 29, 30 bolted to a metal block 27 having a lateral extension 34 projecting into the furnace. A gas jet 25 burns within a tube 23 in the chamber 30, the combustion gases escaping through passages 26 in the block 27. The chambers 29, 30 communicate through passages 28 in the block 27. The tube 23 and a heat-conducting pillar 31 extending upwardly from the block 27 are formed with helical fins 32 fitting tightly the chambers 29, 30. The extension 34 may be cut away at 36 to vary the heat conducted from the flame. In a modification the gas tube 23 extends the whole length of the oil preheating chamber and a block 27 having one or more bevelled extensions is arranged near the top of the chamber where the burner is attached. The gas burner may be replaced by an electrical heater. To prevent dripping of the fuel from the burner the oil chamber 8 may be connected by a capillary tube to an air bulb arranged in the furnace so that when the flame is extinguished a small quantity of oil is drawn up into the bulb.
Patent GB-645407-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B3/14
Filed: 1947-07-24
Abstract: 645,407. Bristles fixing; rotary brushes; mops &c. OSBORN MANUFACTURING CO. July 24, 1947, No. 19968. Convention date, May 14, 1940. [Class 19] A brush element is constructed by forming a row of flat teeth adjacent but within each edge of a flat metal strip, the faces of such teeth being disposed transversely to the edges of the strip, placing brush material between the teeth and transversely of the strip, placing an elongated retaining member upon the brush material and lengthwise of the strip between the teeth and shaping the strip to channel form about the elongated retaining member, the teeth projecting inwardly. The channel brush element may finally be circularized to form a circular brush element or spiral rotary brush. Specified brush materials are bristles, tampico fibre and buffing cloth. The edges of the metal strip may be corrugated before forming and circularizing the channel element, the corrugated edges then being able to stretch without tearing during the circularization. If desired, unvulcanized rubber containing vulcanizing ingredients may be placed between the rows of teeth before placing the brush material and subsequently heated to effect vulcanization for example by circularizing the channel element around a heated mandrel. As shown, rows of flat teeth 2 are punched in a metal strip 5, with or without corrugations along the edges 10 and transverse slots 6, provided to facilitate subsequent circularization. Preferably, the teeth have their outer edges and at least a portion of their inner edges parallel to the edges of the strips, Fig. 3, the danger of tearing the metal when circularizing to a relatively small diameter being thus further reduced. Tufts of brush material 4 and a wire 3 or twine are positioned and the strip bent to channel form about the retaining member 3, the teeth preferably overlapping Fig. 8 illustrates the use of unvulcanized rubber, e.g. electrician's tape 8 to provide, after the vulcanization, a resilient seating for the brush material. U.S.A. Specifications 1,963,044 and 1,963,045 are referred to. The Specification as open to inspection under Sect. 91 includes methods of constructing a brush element comprising (a) placing plastic material along a metal strip, placing brush material transversely of said strip, placing a wire centrally and lengthwise of said strip, shaping to channel form about the wire and treating to harden the plastic material; and (b) corrugating the edges of a metal strip and then positioning brush material transversely of the strip, placing a wire upon said material along the strip, shaping to channel form and circularizing. This subject-matter does not appear in the Specification as accepted.
Patent GB-127802-A (GB)
Title: A New or Improved Oil Lamp.
Inventor: EUGENE HENRI MAGNE
IPC: F23D3/00
Filed: 1918-12-03
Abstract: 127,802. Magne, E. H. June 5, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Chimney and reflector galleries and holders.-A lamp fitting adapted for insertion in the neck of a bottle or other receptacle consists of a plug a of cork or other suitable material carrying a metallic wick-tube band a metal plate d on which is mounted a gallery e for supporting the lamp chimney. The plate d may also carry the bracket g for the reflector h.
Patent GB-220962-A (GB)
IPC: B60R16/00
Filed: 1924-08-23
Abstract: 220,962. Luma-Werke Akt.-Ges. Aug. 25, 1923, [Convention date]. Drawings to Specification. Mechanical switches, retained set.-A switch for controlling the illuminating lamps of a motor car has a switch lever movable into three positions, (i) for connecting the side lamps in series for dim lighting while the vehicle is standing, (ii) for connecting these lamps in parallel for running, and (iii) for connecting the powerful headlights in parallel. In switching over from position (ii) to position (iii) a spring arranged in the hub of the switch lever is stressed and the switch lever is retained in position (iii) by a catch which may be released to restore the lever instantly to position (ii) by actuating a pressbutton which lies in the axis of oscillation of the switch lever.
Patent GB-776502-A (GB)
Title: Method of lubricating solid surfaces
IPC: C10M171/00
Filed: 1955-07-11
Abstract: Solid surfaces at elevated temperatures, particularly gas turbine engine bearings, are lubricated by contacting the surfaces with a blend of a free-oxygen-containing gas and a vaporized organic lubricating liquid which does not form carbonaceous deposits at the temperature at which it is employed, the weight ratio of oxygen to vaporized organic lubricating liquid in the blend being from 7:5 to 2.3:1.  Free-oxygen-containing gases mentioned are oxygen itself, air and other mixtures of free oxygen and nitrogen.  The organic lubricating liquid which is vaporized may be hydrocarbon or non-hydrocarbon.  Hydrocarbons mentioned are petroleum fractions, such as naphtha, kerosine, JP-3 or JP-4 jet fuel and lubricating oil, and polymerized olefins. Additional substances may be added to the organic lubricating liquid to be vaporized, for example alkyl nitrites or nitrates, alkyl sulphides (e.g. ethyl disulphide), chloropicrin, antioxidants (e.g. N - butyl - p - aminophenol, N, N1 - di - sec - butyl - p - phenylenediamine, butylated 4 - methoxy phenol, 2, 6 - di - -tert. - butyl - p - cresol and 2, 21 - methylene - bis (6 - tert. - butyl - p - cresol), polymerized esters, oiliness agents (e.g. oleic or stearic acid) and sulphur and phosphorus - containing extreme pressure agents.  The lubrication of metallic surfaces with the vaporous mixture at high temperatures is improved by forming a protective film on the surfaces by applying thereto a substance containing a sulphur, selenium, tellurium, phosphorus or halogen atom.  The surfaces may be pre-treated or a substance may be incorporated in the vaporous lubricant so that, for example, a sulphide, selenide, telluride, phosphate, phosphide or halide film is formed on the metallic surfaces.  Substances which are readily used in the gaseous state include sulphur, hydrogen-sulphide, carbon disulphide and chlorine, or a sulphur-containing fuel (which may contain thiophenes and sulphides) may be employed as the organic lubricating liquid which is vaporized.  Alternatively the surfaces may be pre-treated by lubricating at about 400 DEG F. with sulphurized mineral oil.  In examples, a steel bearing at 600 DEG F. is lubricated with a blend of air and vaporized JP-4 fuel with or without carbondisulphide or triethyl phosphate.  In some instances, the bearing is first sulphided by immersion in hot sulphurized mineral oil, or phosphated by inmmersion in a JP - 4 fuel containing triethyl phosphate.
Patent GB-655417-A (GB)
Title: Lock for sliding windows, doors and the like
Inventor: SMART GERALD RUPERT
IPC: E05F11/00
Filed: 1948-07-28
Abstract: 655,417. Sliding-window holders. THOMPSON BEACON WINDOWS, Ltd., J. July 28, 1948, No. 20082. [Class 44] In a sliding window or like operating mechanism, e.g. as described in Specification 601,228, where a toothed driving wheel is provided, a metal tongue 1, Fig. 2, may engage two adjacent teeth to lock the wheel in position. The tongue 1, formed with a flange 2, is secured to a flat strip 3 which is slidable in bearings 4 on the underside of a box-like frame 5. An operating shaft 8 is coupled to the strip 3 by means of a pin 7 on the shaft 8 passing through a slot 9 in frame 5 and bearing 4, to enter an inclined slot 6, Fig. 1, in the strip 3. On pulling the shaft 8 outwardly by means of a knob 11 rotatably secured on one end of the shaft 8 at the inside of the window frame 18, the pin 7 slides strip 3 to withdraw the tongue 1 from the toothed wheel. The knob 11 may now be rotated a quarter-turn causing a projection 12 thereon to abut the edge of step in the mounting 13, a spring 10 on the end of shaft 8 maintaining this position. When the knob 11 is rotated back again, the projection 12 is aligned with the step and spring 10 restores the parts to their locking position. Two or more tongues 1 may be operated from the same shaft to engage different toothed wheels. In a modification, the slots in tongues 1 are reversed and the frame 5 extended to house spring 10 so that the knob 11 is pressed inwardly to free the tongues 1 from the teeth, the knob 11 being fitted with a protruding pin or portion for engagement with a mating groove in the mounting 13 to secure the tongues in the free position. -----
Patent GB-379051-A (GB)
Title: Improvements in means for preventing loss from tanks containing readily vaporizable liquids
IPC: B65D90/30
Filed: 1931-07-13
Abstract: <PICT:0379051/III/1> <PICT:0379051/III/2> In order to prevent loss from a tank, Fig. I, containing a readily-vaporizable liquid the gas in the space 4 is withdrawn through a pipe 7 passed to a cooler 6 positioned externally of the tank and returned by a pipe 11, the pipes 7, 11 being spaced apart and both disposed above the liquid level 3.  The cooler 6 may comprise a chamber provided with cross pipes 22, 24 and surrounded by a jacket 14 to which water is supplied by a pipe 15 having an outlet which is directed tangentially with respect to the inner chamber; the water overflows from an outlet 16 to the outside of the jacket which is provided with gutters 20 and a cloth 21, and the supply is regulated by a valve 17 operated by the movement of a gasometer 8 to which the condensed liquid and cooled vapour pass by means of a pipe 9 having a water-sealed sliding joint 10.  The end 13 of the vapour pipe 11 extends above the bottom of the gasometer from which condensed liquid is conducted to the bottom of the tank 2 by a pipe 12.  A manually-operated adjustment valve 25, "breather" valves 26, 27, and one or more one-way valves 28 are also provided.  The condenser may be provided with an additional metal sleeve 29, Fig. II, the cloth 21 and all except the lower gutter being dispensed with; air is circulated between the sleeve 29 and jacket 14 by means of a fan 31 which may be driven by a Pelton wheel 32 rotated by the overflow from the vessel 14.  The gasometer may be omitted in cases where the tank is capable of automatic volumetric variation or where its use is impracticable; in the latter case a circulating fan may be arranged in the pipe 7.
Patent GB-1340711-A (GB)
Title: Watch case
IPC: G04B37/22
Filed: 1971-04-19
Abstract: 1340711 Sintered cemented nitride watch cases SUWA SEIKOSHA K K 19 April 1971 [30 Jan 1970] 20105/71 Heading C7D [Also in Division G3] At least a part of a watch case is formed by compacting and sintering a powdered hard material mainly comprising one or more nitrides, the balance being metallic material, and polishing the part. A number of nitrides and mixtures thereof are suggested, the nitrides being AlN, Be 3 N 2 , Cr 2 N, Fe 2 N, Mo 2 N, NbN, Si 3 N 4 , TaN, TiN, VN, and ZrN. Examples are described in which powdered nitride(s) e.g. Si 3 N 4  are mixed with metallic binders e.g. Ni and Cu or Mo, compacted, and sintered twice in vacuo. Boron may be added for additional hardness. The part may be a coating bonded to a stainless steel body.
Patent GB-1212987-A (GB)
Title: Improvements in or relating to the preparation of thermoplastic block copolymers
Inventor: VAUGHAN GEORGE
IPC: C08G65/26
Filed: 1967-05-02
Abstract: 1,212,987. Three-block copolymers by polymerization in solution. DUNLOP CO. Ltd. 30 April, 1968 [2 May, 1967], No. 20151/67. Headings C3P and C3R. A thermoplastic block copolymer of the structure A-B-A is formed by polymerizing a first monomer to form an elastomeric polymer B active at both ends, in a solvent in which both the monomer and anions of polymer B are soluble, and thereafter adding successive quantities of a second monomer which will add a non-elastomeric polymer block A to each end of B, to a solution in a solvent of said elastomeric polymer B so as to form the block copolymer, the solvent for the copolymerization being a non-solvent for homopolymeric A, and the addition of said second monomer being continued until the block copolymer separates from solution as a gel. Suitable first monomers are butadiene, isoprene, piperylene and substituted derivatives thereof, and copolymers thereof with styrene, an alkylene sulphide, an aldehyde, an alkylene oxide, an acrylate or methacrylate, acrylonitrile, or an N-alkyl or N-aryl maleimide. The second monomer may be an alkenyl aromatic compound, ethylene sulphide, a diene, acrylonitrile, an acrylate or methacrylate, or an N-alkyl or N-aryl maleimide. Suitable first solvents are tetrahydrofuran and aliphatic, alicyclic and aromatic hydrocarbons, while for the second stage the same or different solvents may be used, tetrahydrofuran or hexane being suitable for poly(ethylenesulphide) blocks and hexane and isooctane being suitable for polystyrene blocks. In the examples the following copolymers are formed: (1) polyethylene sulphide - poly - 3,4 - isoprene-polyethylene sulphide using a lithiumnaphthalene complex and tetrahydrofuran as solvent for both stages, (2), (3) and (4) A-B-A, where A = polystyrene, poly - alphamethylstyrene or polymethylmethacrylate and B = poly-3,4-isoprene using a lithium-naphthalene complex and tetrahydrofuran as solvent in the first stage and replacing a major proportion of the tetrahydrofuran with hexane in the second stage.
Patent GB-158922-A (GB)
Title: Improvements in and relating to lubricants
IPC: C10M103/06
Filed: 1919-08-16
Abstract: Finely divided aluminium, such as is made by pounding the metal in stearic acid, is used as a constituent of lubricants.  It may for example be mixed with water, animal, vegetable or mineral oils, greases, emulsions, or saponaceous solutions.  There may be added a deflocculating-agent and/or mica, graphite, or other suitable solid. In examples, 5 lb. of aluminium are mixed with 95 lb. of petroleum jelly or 47.5 lb. of petroleum jelly and 47.5 lb. of lubricating-oil, or with 95 lb. of solidified oil.  Reference has been directed by the Comptroller to Specification 140,174.
Patent GB-880124-A (GB)
Title: Thermonuclear reactor and method of initiating and sustaining a thermonuclear reaction
IPC: H05H1/22
Filed: 1959-06-12
Abstract: 880,124. Nuclear fusion reactors. UNITED STATES ATOMIC ENERGY COMMISSION. June 12, 1959 [Aug. 7, 1958], No. 20163/59. Class 39 (4). A method of initiating and sustaining a thermonuclear reaction in an evacuated chamber comprises establishing a first value of containing magnetic field in a part of the chamber to form a magnetically contained sub-volume, the containing field comprising two magnetic minor regions spaced apart axially and having a minor ratio of at least 3À5 to 1; initiating a hot plasma within the part of the chamber; increasing the magnetic field strength to a second normal operating value after the plasma is formed and simultaneously feeding fuel into the plasma at a rate sufficient to sustain the plasma and to gradually fill the sub-volume with plasma ; and then continuing the fuel feed while at the same time continuously altering the configuration of the field to gradually increase the distance between the minor regions until the desired operating distance is reached, thereby filling the entire containing magnetic volume with plasma. In Fig. 1 a cylindrical evacuated vessel contains a pair of end plates 14, 15 and a breeding blanket I is surrounded by magnetic minor coils 2, 3 and by coils 17 which are energised initially to produce a minor field near that of coil 2. High energy molecular ions from source 4 are shot into the reaction space and dissociated into atomic ions by an arc struck between cathode 8 and anode 9; this produces a hot plasma in the space between the minor coil 2 and the temporary minor formed by coils 17, an das soon as the plasma is formed the magnetic fields are increased by a factor of 5, the arc is shut off, the injection of molecular ions is discontinued, and cold fuel is injected into the plasma from source 11. The temporary minor produced by soils 17 is then moved gradually to the right until the plasma fills the entire working volume of the apparatus. The breeding blanket 1 may be of lithium to produce tritium and may contain beryllium which produces extra neutrons by (n, 2n) reactions. The blanket and the end plates may be cooled by water which may circulate through an external heat exchanger to produce power. In another arrangement, Fig. 2 (not shown), the reaction vessel is toroidal. Specifications 853,916 and 869,344 are referred to.