baber/WOPTO huggingface dataset:
Patent GB-847190-A (GB)
Title: Improvements in or relating to desks and desk-tables
IPC: A47B13/00
Filed: 1958-09-16
Abstract: 847,190. Desks; furniture combinations. SILBERKUHL, W. J., KASTL, U., and HAEUSSLER, E. Sept. 16, 1958, No. 29572/58. Class 52(3) A desk has side panels 1 connected by stud and keyhole slot fitments to a rear panel 2 to form a substructure to support a top 3 having recesses engaged by projections on side panels 1 and secured to panels 1, 2 by clamping devices 6. A leaf 7a for a telephone or a leaf 7b to increase the working surface may be joined to panels 1, 2. Cupboards or drawers may be mounted on the side panels so as to swivel about a vertical axis.
Patent GB-159327-A (GB)
Title: Improvements in or relating to closures for bottles and other receptacles
IPC: B65D51/18
Filed: 1919-11-27
Abstract: 159,327. Shiga, H. Nov. 27, 1919. Stoppers, bayonet-joint.-Relates to closures for bottles, jars, &c. of the kind comprising a double cap, the inner or sealing member of which is shouldered to seat upon a compressible washer on a shoulder on the bottle neck, while the outer or locking member bears upon the crown of the sealing cap and is provided with inward projections to engage under the inclined bottom edges of lugs on the bottle neck. The inner sealing-cap 4 and the outer locking-cap 7 are produced from sheet metal, and the inner cap has a skirt 14 depending below its shoulder 5 to fit closely over the larger diameter of the vessel neck whilst the outer cap has a skirt 17 to fit closely over the skirt 14., the catches 8 for engaging the neck lugs 2 being formed upon the lower edge of the skirt. The skirt 14 of the inner cap may be grooved or thinned immediately below the shoulder 5 to enable the lower part of the skirt to be removed by means of an opener or key which may be carried between the tops of the two caps. The crown of the outer cap may have a central perforation, to economize material.
Patent GB-482150-A (GB)
Title: Improvements in or relating to processes for the manufacture of aluminium
IPC: C22B21/02
Filed: 1936-10-31
Abstract: In the production of aluminium from alumina, the alumina is converted into aluminium nitride by heating it in nitrogen with low temperature carbonization coke, and the nitride is heated with similar coke to convert it into carbide which in turn is decomposed into aluminium and carbon by heating it to over 1400 DEG  C.ALSO:In the production of aluminium from alumina, the alumina is converted into aluminium nitride by heating it in nitrogen with low temperature carbonization coke, and the nitride is heated with similar coke to convert it into carbide which in turn is decomposed into aluminium and carbon by heating it to over 1400 DEG  C.  The aluminium may be distilled off at about 1800 DEG  C.
Patent GB-701797-A (GB)
Title: Improvements in the hydrolysis of gaseous ferric chloride
Inventor: REEVE LEWIS
IPC: C22B1/08
Filed: 1950-12-04
Abstract: Gaseous ferric chloride is hydrolyzed by steam to ferric oxide on the surface of hot particles of refractory material which is formed into one or more fluidized beds kept in the turbulent state by the gaseous ferric chloride and steam.  The refractory material may be ferric oxide, e.g. the end product of the process, or naturally occurring ore, another iron oxide, manganese oxide, alumina, silica, e.g. sand, broken firebrick, kaolin, talc, or a metal, e.g. steel.  In carrying out the process, the refractory material, say ferric oxide, at 600-900 DEG C. enters the top of a refractory-lined vessel wherein it forms three superposed beds. Steam with some hydrochloric acid gas present enters below the lowest bed at about 200 DEG C., ferric chloride vapour at say 200 DEG -400 DEG C. entering immediately above the said bed.  Hydrochloric acid gas and steam escape at the top of the vessel.  The refractory material with deposited ferric oxide is discharged at the bottom, part being bled off, part being passed to the top of a reheating vessel wherein it is fluidized in three beds by gases produced by the combustion of fuel gases beneath the lowest bed. The reheated refractory material then passes via a cyclone separator to the top of the reaction vessel.  Specification 677,645 is referred to.
Patent GB-989512-A (GB)
Title: Improvements relating to continuous baking ovens and associated proving chambers
IPC: A21C13/02
Filed: 1961-08-17
Abstract: 989,512. Dough prover. G. G. BARKER. (L. H. Wilson). Aug. 17, 1961, No. 29694/61. Heading A4D. A continuous dough prover comprises a proving chamber 24, spaced dough carriers 42 mounted on an endless conveyer 30 movable intermittently through the chamber and means whereby the number of stops may be varied to regulate the proving time. As shown, the conveyer 30, trained over sprockets 27-39, traverses the chamber 24, its tunnel-like extension 25 and a tin cooling chamber 26, all disposed within a casing 22 located adjacent a baking oven 20. Tins with dough pieces are initially loaded on to carriers 42 at station R.S., moved intermittently through the prover and, after passing sprocket 39, are carried downwardly and deposited in turn on a horizontally moving conveyer 60 which delivers them to a vertically movable platform 62. The platform is lowered to station L.S., the tins pushed by a bar 76 on to an oven tray 50 and conveyed around the baking oven 20. The baked bread is discharged from the oven on to a conveyer 54 and removed from the tins 52. The empty tins are placed on a conveyer 84, pushed on to carriers 42 and conveyed through a cooling chamber 26 and discharged at a station D.S. to be recharged with dough pieces. Each carrier 42 is pivotally supported on the conveyer and has a platform comprising closely spaced fingers which are staggered with respect to longitudinally disposed members forming the conveyer 60. Thus, as the carriers 42 pass the conveyer 60 the baking tins 52 are deposited on the conveyer. As the tins reach the end of the conveyer 60 and are about to move on to the platform 62 they pass between a light source and photoelectric cell which operates a motor and causes the platform 62 to be lowered into alignment with the station L.S. To vary the number of stops of the proving conveyer 30 selected regularly spaced carriers 42 are arranged to move past the loading station R.S. without stopping and without receiving dough charges. This is achieved by connecting one of four cam-operated switches in circuit with a motor driving the driving shaft 31 of the conveyer 30. Specification 891,426 is referred to
Patent GB-730225-A (GB)
Title: A new or improved electric lighter
IPC: F23Q7/00
Filed: 1952-11-24
Abstract: 730,225. Electric igniters. RINK, H. L., and SPENCE, R. F. July 6, 1953 [Nov. 24, 1952], No. 29700/52. Addition to 685,313. Class 75 (3). The electric igniter as described and claimed in the parent Specification is modified in that (a) the housing is formed by a lower cup-like part 3, Fig. 3, on which is threaded an upper inverted cup-like part 2; (b) the inductor 79 is mounted coaxially within the battery carrier 20; (c) the ignition contacts 36, 37, Fig. 6, each form a transverse extension of an end coil of a helical spring 39, 40 respectively; and (d) the fuel reservoir 10 is formed in the part 3 below the lower plate 23 of the battery carrier which rests on a sealing ring 13 carried on an annular shoulder 11 of the part 3 to seal the periphery of the reservoir 10. A wick at the flared end 50 of the torch 48 rests on and absorbs fuel from a wick 17 pressed upwardly by a spring 16 within the fuel reservoir 10, which also contains an absorbent felt ring 18, or cotton wool, or other fibrous material. On withdrawal of the torch 48 the flared end 50 thereof raises the ignition contacts 36, 37 to rotate helical springs 39, 40 and bring arms 43, 44 of these springs into electrical contact with two fixed terminals 45, 46 (45 only shown) to complete the electrical circuit through the batteries and inductor. On continued withdrawal of the torch 48 the ignition contacts 36, 37 are released to produce the spark or sparks for igniting the torch, and the torsional stress of the springs 39, 40 will be released to allow the arms 43, 44 to move downwardly from the terminals 45, 46, until they are arrested by insulating collars 74 on the bolts carrying the terminals. Specification 676,434 is referred to.
Patent GB-372231-A (GB)
Title: Permanent binder for loose leaves
IPC: B42F13/08
Filed: 1931-10-27
Abstract: 372,231. Binders for loose leaves. STEVENS, G., 3, Chalcroft Road, Lewisham, London. Oct. 27, 1931, No. 29725. Addition to 361,067. [Classes 16 and 146 (i).] The permanent binder for loose leaves described in the parent Specification is modified by the provision of a single locking- sleeve c instead of a pair of sleeves for engaging the ends of the leaf-holding prongs b<1>. The prongs b<1> pass through a baseplate a having flanged edges, then through the leaves x to be bound, and finally through perforations in another plate a. The ends of the prongs are bent into the groove a<1> on the plate a formed by the flanged edges and the sleeve c is then slid over the plate a. Tapering slots c<1> permit of the passage of the sleeve c over the prongs b<1> from either end of the plate a and terminate in ratchet teeth c<2> which eventually snap behind the prongs b<1> and prevent removal of the sleeve. Covers and a flexible back may be provided as described in the parent Specification.
Patent GB-391230-A (GB)
Title: Improvements in or relating to a process for the production of casting moulds of rubber
IPC: B29C33/02
Filed: 1931-10-27
Abstract: 391,230. Rubber moulds for reproducing sculpture &c. ANODE RUBBER CO., Ltd., 10, Lefebvre Street, St. Peter's Port, Guernsey.-(Assignees of Magyar Ruggyantaarugyar Reszvenytarsasag, Budapest.) Oct. 27, 1931, No. 29759. Conven. tion date, Dec. 6, 1930. [Class 87 (ii).] Sculptures &c. are reproduced by the use of rubber moulds formed by coating the model to be reproduced in one or several operations with one or more layers of an aqueous dispersion of rubber, guttapercha, balata, &c. and removing water from the rubber-containing layer or layers. The remaining coherent rubber layer may be vulcanized on the model itself. A liquid of small viscosity may be used for the first layer, subsequent layers being of greater viscosity, and after a desired thickness has been thus reached, raw or pre-vulcanized rubber sheets may be applied to complete the mould wall. The aqueous dispersion may be applied by spreading, dipping, spraying, casting, electrophoresis, &c., and may contain known compounding ingredients and may be in concentrated form. Aqueous dispersions or emulsions which can be rendered capable of gelling on the application of heat or to which substances can be added to cause the emulsion to gel in the cold after a definite and controllable time interval may also be used. A model 1 may be placed on a gypsum base 2 and coated with successive layers of the aqueous dispersion, the base 2 having an annular recess to form a positioning rib 3 on the mould part 4. A gypsum cover 5 is then applied, the base removed and the cover and mould inverted. Aluminium or graphite paste to prevent adhesion is applied to the border of the mould and aqueous dispersion is then applied to the exposed upper surface of the model and a gypsum backing applied. The rubber is then vulcanized and the gypsum backing and model removed bearing the two part mould 4, 4<1>, Fig. 5. Casting moulds consisting of only one part or of more than two parts may also be made. According to a modification, a box of wood or plaster of Paris may be charged with aqueous rubber mixture which may be frothed and which, under the influence of coagulant, e.g. sodium silicofluoride, sets within a controllable time interval. The model is partly dipped into the mixture and maintained in position until the rubber dispersion solidifies, after which the rubber is vulcanized. The box is then removed. Subsequently, the other part of the model is similarly treated. Specifications 332,525 and 332,526, [both in Class 70, Indiarubber &c.], are referred to.
Patent GB-1190283-A (GB)
Title: Improvements in Process for Growing alpha-Alumina Whiskers of the Long Wool Type
IPC: C01F7/422
Filed: 1967-06-28
Abstract: 1,190,283. α-Alumina whiskers. GENERAL ELECTRIC CO. 28 June, 1967 [29 Sept., 1966], No. 29846/67. Heading C1A. [Also in Division F4] Long-wool (i.e. averaging 1-10 Á diameter and 5-25 mm. in length) whiskers of α-alumina are made by heating aluminium to 1290- 1400 C. in hydrogen in a reaction-chamber, at least the upper portion of which is made of a refractory containing the silica required for reaction with the aluminium, the resulting whiskers then being cooled. The reaction chamber is partially closed at least at one end, and may take the form of a semi-cylindrical alumina boat topped by a slip-cast semicylindrical refractory lid open at one flat. Specified refractories are kyanite, mullite, andalusite and a mixture of alumina, silica and trace oxides. The reaction may be effected in presence of sulphur, added as powder, or derived from hydrogen sulphide. Reaction may be carried out by enclosing the loaded reaction chamber in a furnace tube and heating it in flowing or static hydrogen for about 4 hours. The reaction chamber may be purged with N 2  before the reaction and after cooling the reaction product.
Patent GB-159332-A (GB)
Title: Improvements in paper fasteners
IPC: B42F1/08
Filed: 1919-12-01
Abstract: 159,332. Gloucester Pin Manufacturing Co., Ltd., and Willie, G. Dec. 1,. 1919. Clips, spring-wire. - A paper-fastener or clip is made from a length of spring wire bent into a narrow U-shape, and folded back upon itself about half-way along its length. The bent-back arms 2 are brought together and bent so as to engage between the sides 1 of the closed end 3, as shown in Figs. 1 and 3, the loop 3 and the ends of the arms 2 being bent outwards to facilitate the entry of the papers.
Patent GB-1377511-A (GB)
Title: Magnetic filter
IPC: B03C1/034
Filed: 1971-06-25
Abstract: 1377511 Magnetic separators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 April 1972 [25 June 1971] 29940/71 Heading B2J  A magnetic filter comprises a non-magnetic tubular housing 1, e.g. of stainless steel or P.V.C.; a plurality of strips 11 of magnetisable material arranged to form filtering grids with zig-zag paths for the flow of fluid through the housing; mild steel pole plates 3, 4, between which the housing is held, which incorporate slotted gratings 7, 8 of soft iron, and which are connected by soft-iron yokes 5, 6; flanged pipe connections 9, 10; and energising coils 2 which surround the housing 1. In use, current is passed through the coils 2 to magnetise the strips 11, and ferromagnetic contaminants in the fluid flowing through housing 1 are trapped in the gaps 17. When it is desired to clean the filter the strips 11 are demagnetised by switching off the current and the fluid flow is reversed to flush out the filtering grids.
Patent GB-447366-A (GB)
Title: Improvements in pencil sharpeners
IPC: B43L23/04
Filed: 1935-10-30
Abstract: 447,366. Pencil sharpeners. COHN, I. E., 27, West 20th Street, and TAIT, W. E., 5, West 8th Street, both in New York, U.S.A. Oct. 30, 1935, No. 29988. [Class 146 (iii)] A pencil sharpene: comprises opposed vertical plates 2, 3 a sleeve 13 carried by the plate 3, a stud shaft 9 pro vided with a handle 19 and rotatably carried by the plate 2, a bracket 10 con sisting of a piece of sheet metal having sections at its ends bent to form opposed arms 11, 12, the arm 11 being mounted on the shaft 9 and the arm 12 on the sleeve 13, a pencil-guiding abutment 16 carried by the bracket 10 intermediate its arms, a spiral toothed cutter 17 rotatably mounted in the arms 11, 12 opposite the abutment 16, and an annular rack 7 carried by the plate 2 and having its teeth directly in mesh with the spirals of the cutter 17. When the handle 19 is rotated to rotate the frame 10, the cutter 17 rotates on its own axis by the engagement of the internal teeth on the rack 7 with the spirals of the cutter. The vertical plates are connected by side plates below which a metal drawer is provided, and a rounded top cover of celluloid or the like rests on a top spacer bar and has its ends disposed in opposed lips provided at the upper ends of the side plates. The sleeve 13 receives and guides a pencil, and the abutment 16 supports the pencil against the cutter 17.
Patent GB-927253-A (GB)
Title: A process for the manufacture of strengthened hollow bodies of thermoplastic materials
IPC: B29C48/885
Filed: 1959-09-02
Abstract: An improvement in the process for the manufacture of a strengthened hollow body of thermoplastic material by continuous expansion and subsequent cooling of the heated hollow body by means of a tempering bath, the expansion being carried out by internal pressure and within a temperature range which is limited on the one hand by the temperature at which a neck formation is just avoided and on the other hand by the temperature of the crystallite melting point, comprises subjecting the hollow body within the tempering bath to an external pressure at least partially counterbalancing the internal pressure.  The difference between the pressures preferably does not exceed \sB20% calculated on the internal pressure and is preferably nought.  The hollow body may be a tube of polyethylene, polypropylene, a mixture thereof, ethylene-propylene copolymer, polystyrene, polyvinyl chloride or a mixture of polyvinyl chloride with halogenated polyolefins.  The hollow body may be heated by immersing it in a hot liquid, e.g. glycol, and external pressure applied by applying pressure to the liquid.  Apparatus for carrying out the process is described.  Specifications 445,974 and 849,466 also are referred to.
Patent GB-1161619-A (GB)
Title: Photographic Gelatine-Containing Layers with improved Physical Properties
Inventor: KLEBERT WOLFGANG
IPC: C08G18/61
Filed: 1967-06-29
Abstract: 1,161,619. Polyurethane dispersions. AGFAGEVAERT A.G. 29 June, 1967 [2 July, 1966], No. 30080/67. Headings C3R and C3T. [Also in Division G2] A dispersion of a non-ionic polyurethane is formed by reaction of polymer having a molecular weight between 300 and 10,000 e.g. a polyalkylene glycol, a polythioether, a polyester or a polyesteramide or a polysiloxane having a molecular weight up to 20,000 which polymers or polysiloxane have at least two active H atoms one of which is in the form of OH and an excess of a di or polyisocyanate followed by emulsification of the polymer formed in water which may or may not contain a diamine as chain lengthening agent. Specified isocyanates are alkylene diisocyanates, hexahydro toluylene diisocyanates, phenylene and toluylene diisocyanates, dicyclohexylmethane disocyanate, 4,4- diphenyl methane diisocyanate, OCN-(CH 2) - N-(-CO.NH.(H 2 ) 6 .NCO) 2 . Specified diamines are toluylene diamine, ethylene diamine, hexamethylene diamine and cyclohexylene diamine. Polymers of acrylamido or methacrylic and #-hydroxy propyl esters may be added which react with isocyanate groups in the aqueous dispersion.
Patent GB-770065-A (GB)
Title: Production of tetracycline by fermentation
Filed: 1954-10-19
Abstract: Tetracycline (omegamycin) is produced by cultivating Streptomyces viridifaciens ATCC-11989, or a mutant thereof, in an aqueous nitrogenous nutrient medium containing carbohydrate solution under submerged aerobic conditions and recovering the antibiotic therefrom. The initial pH of the medium is 6.0-6.2, the temperature of cultivation 24 DEG  to 30 DEG  C., and preferably 26 DEG  to 28 DEG C., and duration of cultivation 2 to 3 days.  The medium contains a source of (a) carbon, e.g. starch, sucrose, glucose, maltose, dextrose, glycerol, galactose, scylose, arabinose, rhamnose, fructose, lactose, insulin and dextrins; (b) nitrogen, e.g. amino acids, casein, fish meal, soybean meal, meat extracts, liver cake, urea, nitrates, ammonium compounds, distillers' solubles, corn steep liquor, wheat steep liquor, whey, corn or wheat gluten, peptone, offals, brewers' yeast, cottonseed meal, lactalbumin and tryptone; (c) growth substances; and (d) minerals, e.g. sodium chloride, potassium phosphate, magnesium sulphate, sodium nitrate and calcium carbonate.  Tetracycline is recovered from the clarified broth by (a) solvent extraction with a water-immiscible solvent such as butanol or methyl isobutyl ketone; or (b) adsorption on e.g. silica.  The extract from (a) is washed, concentrated by distillation and the antibiotic precipitated by the addition of petroleum ether.  The antibiotic in the form of base or acid salt depending upon pH at which extraction is made, may be further purified by treating with ammonium hydroxide and adsorption on silica.  The antibiotic is eluted from the silica by means of dilute acid.  Salts with acids are formed by adding an organic or inorganic acid to a suspension of the antibiotic in water.  Specified are the hydrochloride, sulphate, phosphate, citrate, tartrate and gluconate.  The alkali metal salts are prepared by treating an aqueous suspension of the antibiotic with an alkali metal hydroxide.  Rb values are given for the following solvent systems: (a) water; (b) aqueous sodium citrate; (c) butanol saturated with water; (d) dry methyl isobutyl ketone; (e) aqueous methanolpiperidine of pH 9.5; (f) aqueous methanolglacial acetic acid; (g) water saturated butanol, piperidine and p-toluene sulphonic acid; (h) saturated butanol, piperidine, p-toluene sulphonic acid and lauric acid; and (i) isoamyl alcohol, carbon tetrachloride and aqueous sodium citrate.  Reference has been directed by the Comptroller to Specification 747,779.