baber/WOPTO huggingface dataset:
Patent GB-917290-A (GB)
Title: Process for preparing shaped articles from acrylonitrile polymers
IPC: D01F6/18
Filed: 1959-05-04
Abstract: Shaped articles, particularly filaments and films, of copolymers of acrylonitrile are produced by extruding a solution in dimethylformamide, dimethylacetamide, dimethylsulphoxide, tetramethylene sulphone or ethylene carbonate, of a copolymer derived from at least 70% by weight of acrylonitrile and at least 1,5% by weight of an ethylenically unsaturated monomer containing a sulphonate group, into an aqueous coagulating bath containing 0 to 65% by weight of the solvent for the copolymer, the bath being at a temperature of 10 DEG  to 70 DEG C., preferably 25 DEG  to 40 DEG C. The copolymers may with advantage contain up to 28,5% of another ethylenically unsaturated monomer and a list of these is given.  The coagulating bath preferably contains not more than 45% by weight of the solvent.  Examples are given in which the monomer copolymerized with acrylonitrile is sodium styrene sulphonate, sodium ethylene sulphonate, sodium propene sulphonate, sodium isobutene sulphonate, or alkyloxypropanol sulphonate, and an example is given also in which there is used a terpolymer of acrylonitrile, vinylidene chloride and sodium styrene sulphonate. The sulphonate salt groups are preferably alkali metal or ammonium salts.  A long list of suitable sulphonate monomers is given.  The content of sulphonate in the copolymer is preferably between 1,5 and 5% and may be up to 10%.  The filament or film formed may be passed through a second bath, e.g. water at about 80 DEG  to 100 DEG C., to extract residual solvent.  It may then be stretched at a draw ratio of 2 to 10 in a heated aqueous medium such as steam at 7 p.s.i.g. pressure.  The process produces lustrous, void-free filaments, films &c. without the necessity of using special aftertreatments, and low-solvent concentration coagulation baths at room temperatures may be used.  The products have improved dyeability, particularly when basic dyes are used. U.S.A. Specifications 2,451,420, 2,467,553, 2,530,962, 2,622,003, 2,677,590, 2,677,591 and 2,681,265 are referred to.
Patent GB-997294-A (GB)
Title: Isomerisation of halogenated diphenyls
IPC: C07C17/358
Filed: 1962-04-19
Abstract: A mixture of dihalodiphenyls containing the 2,31- and 2,41-isomers is produced by heating an anhydrous 2,21-dihalodiphenyl (or a mixture of halogenated diphenyls rich therein) with anhydrous HCl at 50-250 DEG C. in presence of anhydrous AlCl3, AlBr3 or GaCl3.  The product may be converted to a trihalodiphenyl by halogenating in presence of a Lewis acid.  The halogen is preferably Cl but may be otherwise F, Br or I.  The trihalodiphenyls may be stabilized as disclosed in Specification 936,352.
Patent GB-1067205-A (GB)
Title: Improvements in hydraulic presses
IPC: B21J9/12
Filed: 1965-04-09
Abstract: 1,067,205. Hydraulic presses. HAMMERLE A.G. April 9, 1955 [April 10, 1964] No. 15312/65. Heading B5F. In an hydraulic press comprising stationary and movable press beams 1, 2 connected by guide columns 5 equipped with hydraulic cylinders 7, pistons 11 are subject on one side to hydraulic pressure and on the other side to the action of springs 15, and are connected through an engaging member with the movable press beam 2. As shown, this member comprises a bolt 13 passing through slots (not shown) in the guide column and received in openings in a column and carrying the beam 2. In a modification (not shown) the bolt 13 is replaced by a rod extending axially through a cover 9 of the cylinder 7.
Patent GB-745075-A (GB)
Title: Improvements in or relating to process of preparing crystalline magnesia and the resulting product
Inventor: HICKS JAMES CLENNY
IPC: C04B2/10
Filed: 1953-06-03
Abstract: Periclase is prepared by mixing a magnesium compound which will form periclase on firing with vanadium or vanadium compounds in an amount to provide up to 5 per cent by weight of added vanadium, calculated as V2O3 in the fired product, and firing the mixture to form periclase.  The magnesium compound used as starting material preferably contains 95 per cent at least of magnesium oxide less than 2 per cent SiO2 and less than 2 per cent CaO, when fired.  Suitable compounds are magnesium hydroxide, carbonate, acetate or alcoholate, or magnesite, brusite or amorphanes or cryptocrystalline magnesia. The latter may be obtained by firing a magnesia yielding compound at not over 1100 DEG C. for not over 45 minutes to obtain microcrystalline magnesia with a bulk density of not over 1.5 grams/c.c.  The vanadium compound, preferably added to give 1/8 to 1 per cent V2O3, may be the chloride oxychloride ir other halide or vanadyl sulphate, and is preferably added as an aqueous or alcoholic solution or suspension to the periclase-yielding component.  Firing may be effected at 1300 DEG C or more, employing an oxidizing atmosphere if vanadium metal is employed.  The mixed starting materials, which are preferably all below 200 mesh (U.S.) size, may be fed as a slurry to a rotary kiln and dried and fired in the same operation.  When employing cryptocrystalline magnesia, it may be formed in the presence of the vanadium addition or after forming may be mixed with the vanadium.  According to a typical example, 6 parts of vanadium oxide are mixed with 494 parts of magnesium hydroxide filter cake prepared by treating calcined dolomite with sea water and the mixture dried, pelletted at about 8000 p.s.i. and fired at 1700 DEG C. for half an hour.  The porosity of the product is 6.7 per cent.
Patent GB-1570410-A (GB)
Title: Material dispensing device comprising apparatus for controlling the quantity of a dispensed material
IPC: G01G15/00
Filed: 1977-04-13
Abstract: The device (1) comprises two pistons (6, 7) which cooperate with a casting head (8). These pistons perform a to-and-fro movement and are operated by a rod (18) via levers (12, 13) and arms (2, 3). The alternating movement of the rod (18) is generated by an eccentric disc (19). The rod (18) has a stop means (22) which rests during each alternating movement against the end of a threaded rod (23) displaceable axially by a stepper motor (27). This motor is actuated, via leads (28), by electronic scales (30) which compares the current weight of each mould (10) filled with a predetermined value and which transmits a signal to the motor (27) which, by means of a displacement of the threaded rod (23), adjusts the travel of the pistons (6, 7) and hence the quantity injected into the moulds (10). In this way the weight of the product cast in the moulds is adjusted continuously and with great precision. <IMAGE>
Patent GB-102933-A (GB)
Title: Improvements in or relating to Electrolytic Gas Generators.
Inventor: LEVIN ISAAC HARRIS
IPC: C25B9/19
Filed: 1916-10-27
Abstract: 102,933. Levin, I. H. Dec. 20, 1915, [Convention date]. Hydrogen and oxygen, obtaining; cells; diaphragms; electrodes; electrolytes, treating non- chemically; metals, removing.-A cell tor the generation of oxygen and hydrogen is composed of dished integral or built-up end plates 15, Fig. 5, with or without intermediate annular sections 16. These parts, which do not form electrodes and n ay be protected by paint or varnish, are preferably flanged. Between them are secured by soldering, brazing, welding, riveting, interlocking seams, &c., one or more partial partitions 18 comprising upper parts 19 forming gas chambers, and narrow side pieces 24. Asbestos or other diaphragms 25 are attached to the partitions by fillets 26, or may be supported by independent frames. Narrow gaps are preferably left below the diaphragms. Electrode plates 35 are held partly by rigid strips 42 passing through insulating-material in the top of the cell, and partly by feet 36 bent at rightangles and wrapped in insulating-material before insertion in undercut grooves in cross-pieces 39 at the bottom of the cell. Angle-irons 40 secure the ends of the cross-pieces. Through the top of the cell pass gas-outlet pipes 23, and water-supply pipes 44 leading from a trough 47. At their inner end, the supply pipes are bent upwards and fitted with nozzles of smaller diameter. Escape of gas is thus prevented, except when the pressure becomes excessive. The electrolyte may contain caustic potash or sulphuric acid. The Specification as open to inspection under Sect. 91 (3) (a) also states that one or both electrodes may be made of cobalt, or a cheaper metal coated with cobalt by electro-plating or rolling. Preferably, such an electrode is employed as anode with a cathode made of, or coated with, iron; an iron plate electroplated with iron is advantageous. Before use, the electrodes may be connected as anodes in solutions of salts of the respective metals, to remove a small amount of metal. Reduced electric pressure may then be used in the gas-generator. This subject-matter does not appear in the Specification as accepted, but forms the subject of Specification 108,477.
Patent GB-788101-A (GB)
Title: Improvements in and relating to builders' appliances
Inventor: ELLIOTT JOHN
IPC: E04G17/12
Filed: 1954-05-25
Abstract: 788,101. Shuttering for casting beams. ACROW (ENGINEERS), Ltd. May 16,1955 [May 25, 1954], No. 15418/54. Class 20(2) [Also in Group XXIII] A clamp for shuttering for casting concrete beams comprises a base 10 having a movable jaw 16 which is held in any adjusted position on the base by a tightener 17 movable along the base independently of the movable jaw and adapted to be locked to the base by the tightening action. The tightener 17 consists of a slotted member 18 embracing the base and a screw 22 adapted to be tightened against the jaw 10 whereby the tightener is tilted to lock on the base. A support bracket 28 slidable on the base 10 has a depending pin 26 which may be engaged in the end of an adjustable prop or scaffold tube. The lower surface of the base may be serrated.
Patent GB-581511-A (GB)
Title: Improvements in combined spanner and screw driver tools
IPC: B25F1/00
Filed: 1944-08-14
Abstract: 581,511. Combined spanners and screwdrivers. BROWN, E. Aug. 14, 1944, No. 15495. [Class 61 (iii)] A tappet screw and lock-nut 6 are manipulated by a screw-driver 8 with operating head 9 rotatable freely in a tubular box spanner 3 provided with a projecting handle 10 and an elongated bore 5 adapted to engage the lock-nut 6 and of such a length that the screw-driver working end 8A can be entirely disposed within it.
Patent GB-553004-A (GB)
Title: Process and apparatus for regenerating exhaled air
IPC: A62B21/00
Filed: 1941-12-03
Abstract: 553,004. Regenerating exhaled air. HERZMARK, N. Dec. 3, 1941, No. 15567. [Class 137] [Also in Group VI] Air for regeneration is subjected to oxygenating and carbon dioxide neutralizing agents consisting of a mixture of one or more peroxides or persalts of an alkali or alkaline earth metal, and an insoluble manganate of an alkaline earth metal which is transformable by carbon-dioxide into a soluble permanganate which will yield oxygen simultaneously with the absorption of carbon dioxide. Suitable substances are insoluble alkaline earth manganates such as barium manganate which are converted by weak acids such as carbon dioxide into soluble permanganates which react with the alkali or alkaline earth peroxides or per-salts to produce free oxygen. The carbon dioxide is fixed by decomposition of the manganates, and by combination with the alkali-or alkaline-earth hydroxides to form carbonates, and a further quantity may be absorbed by alkalineearth metal ferrates. Porous or fibrous materials such as asbestos may be added to the reacting substances. In an example, sodium perborate 80 parts is mixed with barium manganate 10 parts and asbestos 10 parts, and this mixture is preferably added to a mixture of barium oxide 25 parts barium ferrate 5 parts, sodium peroxide 50 parts, barium manganate 10 parts and asbestos 10 parts. These are mixed dry compressed between wire gauzes and suspended in contact with the air to be treated.
Patent GB-144691-A (GB)
Title: Improvements in or relating to bottle making machines
IPC: C03B9/16
Filed: 1920-06-09
Abstract: 144,691. Boucher et fils, C. Dec. 28, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Blowing.-Relates to turnover bottle-blowing machines of the Claude Boucher type. According to the invention, the molten metal in the parison mould is compressed by air admitted from the shaft C' through a pipe X to the mould cover F. The height of the finishing mould is adjusted by nuts K, K', K<2>. The links L' for operating the mould halves are adjusted in length by a right and left handed nut. The shaft C' has two passages for high and low pressure air respectively.
Patent GB-1346086-A (GB)
Title: Offshore structures and their installation
IPC: E02B17/00
Filed: 1971-05-18
Abstract: 1346086 Offshore structures J RAY McDERMOTT & CO Inc 18 May 1971 [22 June 1970] 15657/71 Heading E1H A hollow leg 2 intended to form part of an offshore platform, and through which a pile is to be driven, is provided with removable upper and lower closure members 3, 4 which allow it to be towed to or floated at the installation site horizontally. The upper closure member 3 comprises an oversized stiffened plate 5 secured to the leg 2 by a seal weld 6, and the lower closure member 4 comprises a frustoconical, dished or stiffened flat metal member 15 secured by a seal weld (not shown) to the inside of the leg 2. The members 3, 4 are interconnected by a slack wire rope 34 and arm 21. By selective flooding leg 2 can be vertically positioned and sunk whereupon weld 6 is cut and an upward pull applied to member 4 via rope 34 to break its welded connection to leg 2 and pull it through the leg. The member 4 includes a peripheral tearing portion, various constructions of which are disclosed.
Patent GB-141966-A (GB)
Title: Improvements in or relating to ferrules for walking sticks, umbrellas and other articles
IPC: A45B9/04
Filed: 1919-06-23
Abstract: 141,966. Winkley, W. L., (trading as Electroplate & Stamping Co.). June 23, 1919. Wickets.-Relates to ferrules furnished with renewable tips for wickets, &c. A tapering tube a closed at the lower end is internally screwed. The closing-piece a<2> is provided with a screwed projection to receive an internally-screwed ring b having an internal flange, between which and the end of the screwed projection a flanged part of the renewable top, spike, &c., c, d, is gripped. The ring has the same diameter as the closing-piece a<2>.
Patent GB-805110-A (GB)
Title: Process for the oxidation of paraffins
Inventor: LAWSON-HALL GRIFFITHS
IPC: C07C51/215
Filed: 1956-05-22
Abstract: A C4-8 paraffin hydrocarbon is oxidized in the liquid phase at elevated temperatures and pressures with a gas consisting of or comprising molecular oxygen, to produce aliphatic carboxylic acids of 1-4 carbon atoms, the primary oxidation product is distilled to separate as light ends the materials boiling in the presence of water below 99 DEG  C., the oxidation waste gases are contacted, preferably at the reaction pressure, at a temperature not above - 1 DEG  C. with the light ends whereby organic materials are condensed from the waste gases, and the light ends and condensed material are oxidized in the liquid phase at elevated temperatures and pressures with a gas consisting of or comprising molecular oxygen to produce additional quantities of aliphatic C1-4 carboxylic acids, e.g. by recycling.  In a preferred embodiment the oxidation waste gases are cooled to about 30 DEG  C. to condense out part of the volatile organic material, before being contacted with the light ends.  Such contact is preferably made at - 1 DEG  to - 50 DEG  C., more preferably at - 10 DEG  to - 40 DEG  C.  The light ends may also be cooled before contact with the waste gases.  In the preferred method the waste gases after contact with the light ends are expanded adiabatically to furnish part of the cooling necessary.  In a variation the waste gases are cooled in the presence of light ends containing in solution filtered oxidation products of boiling-point above about 140 DEG  C. (the filter residue comprising largely succinic acid), the organic material being recycled to the oxidation stage.  Preferred hydrocarbon starting materials have a boiling range not exceeding about 100 DEG  C.  In an example related to the diagram of the apparatus (not shown) a feed of boiling range of approximately 30-70 DEG  C. is oxidized with air at 175 DEG  C. and 630 lb. per square inch.  Specification 743,990 is referred to.
Patent GB-586607-A (GB)
Title: Improvements in the construction of framed buildings
IPC: E04B1/00
Filed: 1944-08-18
Abstract: 586.607. Walls. ALLEN, R. Aug. 18, 1944, No. 15811. [Class 20 (iv)] A wall frame for buildings comprises H-section stanchions 6 with their webs parallel with the wall and wood horizontals 14 secured thereto by spikes 15 through holes 9 in the stanchion flanges. The stanchions may be secured to top and bottom members 11, 10 by oppositely disposed straps 12 and diagonal wood bracing members may connect the stanchions and horizontals. An outer wall of brick, concrete, terra cotta &c. may be tied to the frame which may carry sheet material as inside and outside coverings. The end of the ties embedded in the brickwork is at a lower level than the end secured to the frame.
Patent GB-891796-A (GB)
Title: Improvements in or relating to cabinets
Inventor: NEAVE LESLIE JAMES
IPC: A47F3/04
Filed: 1959-05-08
Abstract: 891,796. Cabinets. HAYNES & ORENGO Ltd. May 3, 1960 [May 8, 1959], No. 15875/59. Class 52(1) [Also in Group XIII] In a refrigerated display cabinet, Z-section strips 13 which extend along the pivot edge of flaps 9, have flanges 15 which engage the inner face of the upper margin of the frontal aperture of the cabinet, or the inner face of the lower margin of the flap next above. The flaps are preferably of "Perspex" (Registered Trade Mark) and one pivoted to channel and angle section members 12.
Patent GB-697761-A (GB)
Title: An improved method of manufacture of cardboard, pasteboard, paper and the like
IPC: D21B1/16
Filed: 1951-07-05
Abstract: 697,761. Paper &c. HELLEFORS BRUKS AKTIEBOLAG. July 5, 1951. [July 7, 1950] No. 16010/51. Class 96. Paper or cardboard &c. is made from shortfibred lignocellulosic material, e.g. sawdust by beating &c. to at least 35‹ Schopper-Riegler in an aqueous alkaline solution of at most 0.7 per cent concentration, calculated as NaOH and at or above 50‹C. The time of beating &c. should not exceed 10 mins. if the temperature is above 100‹C. The material may be mixed with mechanical pulp &c. and the beating &c. may be effected in a Jordan mill, disc mill, or beating- engine. It may be disintegrated, before wet grinding, to pieces about 10mm. long. Alkalis mentioned are caustic soda and lime. Specification 673,416 is referred to.
Patent GB-769835-A (GB)
Title: Improvements in or relating to hydraulic self-adjusters for valve gears of internal combustion engines
IPC: F01L1/24
Filed: 1955-06-03
Abstract: 769,835. Valve gear. SOC. ANON. DES ANCIENS ETABLISSEMENTS PANHARD & LEVASSOR. June 3, 1955 [June 4, 1953], No. 16067/55. Class 7 (6). A valve rocker 1 oscillating about a stationary pin 5 is pivoted on a ball-end pivot member 4 provided with a cylindrical extension which co-operates with a piston-like nut 7 on the pin 5 to form a hydraulic clearance adjustance device, the space between the piston 7 and cylinder being filled with oil under pressure through a spring-loaded non-return valve 11. The nut 7 forms an adjustment nut for setting the clearance and it is locked by a lock-nut 8. The oil under pressure e.g. the engine lubricating oil, is supplied at 10 and flows through a passage 9 in the pin 5 to the space between the piston 7 and cylinder. In Fig. 2 the oil is supplied through a vertical pipe 13 to two inclined pipes 14, 15, leading to the clearance adjusting devices of two valves in the same engine cylinder, a spring-loaded valve 18 in a pipe 17 leading to the engine lubricating system ensuring that a predetermined pressure is built up in the pipes 14, 15, before the oil is supplied to the engine lubrication system. The inclination of the pipes 14, 15 permits any air bubbles in the oil to escape.
Patent GB-488053-A (GB)
Title: Adjustable roller bearings
IPC: F16C33/60
Filed: 1937-06-10
Abstract: 488,053. Roller bearings ; nuts. USHER, G., and USHER, M. June 10, 1937, No. 16091. [Class 12 (i)] [Also in Group XXV] An adjustable roller bearing for connecting- rods and other purposes has a series of rollers located between the shaft and a liner or race ring 10. The latter is divided into two unequal parts by cuts inclined to the bearing axis. The bearing housing is axially divided and is provided at the ends with taper screw threads 7 carrying nuts 11. The nuts 11 are divided axially, the two parts of each being secured together by a pair of dovetailed keys 12. When the nuts 11 are in adjusted position the keys 12 are slid axially so as to engage also dovetailed shaped projections 9 on the bearing housing. Inwardly directed end flanges on the nuts 11 overlie the ends of the rollers and retain oil in the bearing.
Patent GB-496898-A (GB)
Title: Process for the manufacture of tanning agents
IPC: C14C3/24
Filed: 1937-06-10
Abstract: In the manufacture of tanning-agents by treating a ligninsulphonic acid compound, e.g. sulphite cellulose lye, with a condensation product derived from an aromatic hydroxy compound and an agent known to be capable of linking aromatic nuclei, products of improved properties are obtained by splitting off a substantial proportion of sulphurous acid from the ligninsulphonic acid compound by heating it with an aqueous alkali at atmospheric or raised pressure but under such conditions that the formation of water-insoluble compounds is avoided.  This treatment of the ligninsulphonic acid compound may be effected before or after its admixture with the condensation product of the aromatic hydroxy compound.  Formaldehyde also may be added to the mixture.  In the examples: (1) sulphite cellulose lye which has been heated with caustic soda solution is mixed with a phenol-formaldehyde condensation product prepared in the presence of hydrochloric acid; (2) sulphite cellulose lye which has been heated with aqueous ammonia is mixed with a resin prepared from phenol and chloracetone; (3) sulphite lye pretreated as in example 1 is mixed with a resin prepared from crude cresol and a , b -dichlorodiethyl ether, or (example 4) with a resin prepared from phenol and sulphur monochloride, or (example 5) with 4 : 41-dioxydiphenylsulphone and formaldehyde, or (example 6) with formaldehyde and the phenol-formaldehyde of example 1, or (example 7) with a resin prepared from crude cresol and formaldehyde in the presence of hydrochloric acid; (8) sulphite cellulose lye pretreated as in example 1 is mixed with formaldehyde and a resin prepared from crude cresol, phenol and formaldehyde; (9) sulphite cellulose lye pretreated as in example 1 is mixed with a resin prepared from crude cresol and formaldehyde in the presence of hydrochloric acid, and the product is washed with ammonium-sulphate solution; an aqueous solution of the product is mixed with a product obtained by sulphonating a condensation product prepared from phenol, crude cresol and formaldehyde in the presence of hydrochloric acid, and the whole mixture is treated with formaldehyde; (10) sulphite cellulose lye pretreated as in example 1 is mixed with a resin prepared from phenol, glucose and hydrochloric acid; (11) and (12) sulphite cellulose lye pretreated as in example 1 is mixed with the phenol formaldehyde resin of example 1, and the product is acidified with sulphuric acid to yield a solid layer containing a water-soluble tanning-agent; (13) sulphite cellulose lye is mixed with a resin prepared from crude cresol and formaldehyde, and the mixture is heated with caustic soda and then acidified with sulphuric acid. Thickened or ash-free sulphite cellulose lye may be used.  The use of phenol-sulphur condensation products and sulphonated phenolic condensation products is mentioned.  Specifications 443,967 and 467,998 are referred to.