baber/WOPTO huggingface dataset:
Patent GB-780570-A (GB)
Title: Method of making sheet or strip of aluminium or aluminium alloys
IPC: C22F1/04
Filed: 1956-04-04
Abstract: 780,570. Making aluminium or aluminium alloy sheet; working at specified temperatures. OESTERREICHISCHE METALLWERKE AKT.-GES. April 4, 1956 [April 6, 1955], No. 10314/56. Classes 83 (2) and 83 (4). A method of making aluminium or aluminium alloy sheet or strip material comprises homogenizing a billet at a temperature between 550‹ to 640‹ C., subsequently hot rolling said billet at a temperature above 350‹ C., allowing the hot rolled material to cool and cold rolling the material to final thickness. The material may be annealed at 400 ‹ C. after the cold rolling to impart a fine grain structure. Alternatively the cold rolling may be carried out in two stages with an intermediate anneal at a temperature between 400‹ to 550‹ C. In an example a billet of aluminium of 99.3 per cent purity is homogenized for 16 hours at 610‹ C. and then hot rolled, beginning at 610‹ C. down to a sheet about 6 mm. thick, the final temperature of hot rolling being about 400‹ C. After cooling, the sheet is cold rolled to a final thickness of 0.8 mm. and is annealed at 400‹ C. for about 6 hours. The sheet or strip so prepared may be formed into hollow bodies by drawing or spinning without the development of cars.
Patent GB-916363-A (GB)
Title: Improvements in foldable tables
IPC: A47B3/083
Filed: 1961-03-21
Abstract: 916,363. Foldable tables. JOOS, E. March 21, 1961 [March 29, 1960], No. 10322/61. Class 52 (3). A foldable picnic table has a top comprising two sheet metal sections 1, 2, each having affixed thereto on three sides channel members 3 and the sections being hinged together on the fourth side to form, when folded, a box to contain supporting legs and the sections 1, 2 are held in their erected position by a pair of resilient bars 10, one pivoted to each section about two mutually perpendicular axes by means of a link 11 to be swingable beyond the hinge and be secured at the free end to the other section by a slidable catch member 12, Each table leg comprises three resilient rods 21. 22, 23 having bent ends 24 of which the ends of rods 21, 22 pivotally fit in aligned apertures in lugs 14 and the end of rod 23 is fitted into an aperture in a lug 19 against resilient bias caused by a common foot 25. Bar 10 is held in stowed position by a rod 21 which engages a notch in a doubly bent part 27 of the bar which thus in its stowed position divides the box-like space into two compartments, the inner of which may house stools.
Patent GB-866163-A (GB)
Title: Improvements relating to tap-changing circuits for power transformers
Inventor: STONELAKE WILLIAM HENRY
IPC: H01F29/04
Filed: 1957-03-29
Abstract: 866,163. Transformers. ENGLISH ELECTRIC CO. Ltd. March 26, 1958 [March 29, 1957], No. 10334/57. Class 38 (2). A transformer with on-load tap changing apparatus has a secondary comprising a main winding and a tapped winding, a tap-bridging impedance for producing intermediate steps, and a choke which may be connected in series with the tapped winding. Preferably, the turns on each section of the tapped winding are graduated in increasing progression from the inner end, and the turns on the main winding are greater than the total on the tapped winding. As shown, the system controls four D.C. traction motors M1 ... M4 through a rectifier bridge 19. The transformer 10 has a centre-tapped main secondary winding 14, connected to earth via earth-fault relay 21, and two tapped secondary windings 15, 16. The tap-bridging impedances 17, 18 are centre-tapped auto-transformers, but in an alternative arrangement (not shown) they may be resistive or inductive impedances. The voltage applied to the rectifiers 19 is increased from zero in forty-four steps, each change in one half of the circuit being followed on the next notch by a corresponding change in the other half. At first, the main winding 14 is disconnected, the tapped windings being used by operation of contactors T0 ... T5 and TTO ... TT5, the chokes 17a and 17b being in series with their respective tapped windings. Then, by use of contactors W1 ... W8, each half of the main winding 14 is successively connected in parallel with its associated tapped winding, followed by the disconnection of the tapped windings and the chokes. Finally, the tapped windings are connected in series with the main winding for the remaining notches. The steps available from the tapped windings are effectively doubled by the tap bridging impedances 17 and 18; as each tap section is brought into use it is first connected across the impedance, where its output is halved. On the succeeding notch the impedance is short-circuited by its contactor P1 or P2 and the full output used. More than one section may be provided on the main winding, the switching sequence being repeated for each section.
Patent GB-381494-A (GB)
Title: Improvements in and relating to electric condensers
IPC: H01G4/32
Filed: 1932-04-11
Abstract: 381,494. Condensers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Elektrizitõts-Akt.-Ges. Hydrawerk; 32, Drontheimerstrasse, Berlin.) April 11, 1932, No. 10358. Convention date, April 11, 1931. [Class 38 (ii).] The core upon which the strips of foil and dielectric of a condenser are wound is made resilient to keep the condenser under tension. Preferably the core is a resilient metal slit tube 1, the ends 3 of the dielectric and foil 2 being clipped in the slit.
Patent GB-222784-A (GB)
Title: Improvements in or relating to cartridge extracting and ejecting mechanism for firearms
IPC: F41A15/14
Filed: 1924-04-28
Abstract: 222,784. Auto-Ordnance Corporation and Eickhoff, T. H. April 28, 1924. Machine guns.-A cartridge extractor adapted to cause the cartridge case to be ejected without excessive force, has the hook portion made in two parts, one of which is disengaged from the cartridge case by a fixed abutment approximately at the time of the ejection, while the other remains in the path of the cartridge case to assist in the ejection. As shown, the main part of the extractor 15 is secured to the bolt bv a collar 13 engaging the lug 16, and has a bevelled hook 18 and a spring tail 19. Pivoted in the head portion is an auxiliary extractor 22 which is pressed into engagement with the cartridge case by a spring 24. During retraction of the bolt, the auxiliary extractor engages the cartridge case until it is turned by a fixed incline 31 on the gun. The bevelled hook 18 on the extractor 15 remains in the path of the cartridge case, and in conjunction with the ejector 34, causes ejection to take place without excessive force.
Patent GB-398279-A (GB)
Title: Process for the production of coloured cellulose derivatives
IPC: C08B15/06
Filed: 1932-04-12
Abstract: Cellulose derivatives which are coloured throughout are obtained by condensing cellulose or an alkali cellulose with a reactive aromatic compound, and subsequently producing from the condensation product a coloured derivative by introducing into the aromatic radical a chromophoric group and an auxochrome.  The coloured cellulose compound may be admixed in solution with viscose, for example, for the production of coloured threads.  The following examples are given:--(1) cotton wool dissolved in sulphuric acid is added to nitrobenzene and the product poured on to ice and dissolved or dispersed in a suitable medium.  After reduction by means of sodium bisulphite or nascent hydrogen, the amino derivative is diazotized and coupled with a naphthol. Instead of nitrobenzene, benzene may be used and the product of the first step nitrated.  (2) Alkali cellulose is reacted with 1, 2-diketo-1-p-nitrophenyl-3-chlorpropane, and the product condensed with dibenzyl ketone in the presence of small quantities of sodamide to give a compound containing a cyclopentanone ring. The nitro compound is then reduced, diazotized, and coupled with Naphthol A.S.  (3) Alkali cellulose is reacted with p-nitro-benzyl chloride, or with benzyl chloride followed by nitration, and the nitro product reduced, diazotized, and coupled with Naphthol A.S. (4) Cotton is heated to dryness with a concentrated aqueous solution of magnesium p-nitrobenzoate.  The residue is reacted with p-nitrobenzoyl chloride and p-nitrobenzoic acid anhydride (or acetic acid anhydride), and the nitro-produce treated as in the previous examples.  The p-nitrobenzoyl chloride may be replaced by acetyl chloride.  Specifications 259,634, [Class 2 (ii), Cellulose &c.], 346,385, 347,117, and 347,263 are referred to.
Patent GB-959983-A (GB)
Title: Improvements in protective facing arrangements
IPC: A47B13/08
Filed: 1961-03-22
Abstract: 959,983. Strengthening edges. H. ENDER. March 22, 1961 [March 22, 1960], No. 10537/61. Heading B5K. A facing strip for application to an edge face of a board-like element 1 includes at least one anchor member 3 adapted to be embedded in a recess 4 leading out of another recess formed in said face of the element 1, the strip having its maximum thickness in the region of the anchor member and its minimum thickness at its edges. To fit the strip, the edge of the board 1, which is preferably made of wood chips and synthetic resin, is grooved to correspond with the crosssection of the strip and the recess 4 is filled with adhesive which may be " loaded " with particles, such as inert earth or mineral particles, to give it added strength upon solidification. The strip is pressed into position so that the adhesive is forced into the pores of the board and fills the spaces between the serrations of the member 3 and any excess adhesive passes into the gap between the strip and the board edge. In a modification, Fig. 2 (not shown), the strip has a cross-section in the form of a trapezium with two anchor members depending from the shorter parallel side thereof. In a further modification, Fig. 3, the strip 9 is shown applied to a rebated edge of a board 10.
Patent GB-1353296-A (GB)
Title: Process for transforming phosphoric acid esters or ester mixtures  into free-flowing products stable to storage
IPC: C07F9/02
Filed: 1972-03-07
Abstract: 1353296 Free-flowing phosphoric acid esters KNAPSACK AG 7 March 1972 [24 March 1971] 10554/72 Heading C2P A phosphoric acid ester or phosphoric acid ester mixture having a solidification point higher than 44‹ C. is transformed into a freeflowing product stable to storage by cooling the ester or mixture from temperatures above its solidification point down to temperatures below its solidification point, simultaneously or subsequently transforming the ester or mixture into granular, powdered or scaly material, and immediately thereafter allowing this material in a layer less than 50 cm. thick to remain for at least 20 minutes at temperatures at least 20‹ C. lower than its fusion point. The treatment of the granular, powdered or scaly material at temperatures at least 20‹ C. below its fusion point may be carried out on a tape, plate or tray or in a fluidized bed or rotary tube. In the examples phosphates treated are (1) a mixture of mono- and di-stearyl phosphates, (2) substantially monostearyl phosphate and (3) an ester mixture containing cetyl, stearyl and eicosanyl radicals. The esters used in Examples 1 to 3 are prepared by reacting phosphorus pentoxide with the corresponding alcohol or alcohols.
Patent GB-106888-A (GB)
IPC: B64C27/10
Abstract: 106,888. Porter, J. R. July 6, 1916. Aerial machines without aerostats; propelling; cars.-A helicopter is supported by two oppositely rotating propellers 8, 9. the propeller 9 being mounted upon an annular wheel, and the propeller 8 upon a part carrying the planet wheels of an epicyclic gear of which the sun pinion is driven by the engine. The propellers have each four arms provided with blades 10 which may pivot about their centres of pressure within the limits of stops 12 so as to assume an angle for helical gliding should the engine stop. When circular blades are used they may be fixed on the arms. The upper propeller is larger than the lower one. The machine is supported upon a light frame 1, 2 having an annular float 3 and a suspended seat. Horizontal motion is induced by a weight sliding on a rod.
Patent GB-893374-A (GB)
Title: Shock cushioning device for pivot of clockwork and appliance
IPC: F16C27/08
Filed: 1959-03-26
Abstract: 893,374. Bearings. ISICO S.A. March 26, 1959 [April 8, 1958; March 2, 1959], No. 10723/59. Class 12 (1). A bearing for the pivot p of a shaft P comprises a stone 6 having a conical recess 8 to receive the pivot p and a frusto-conical external surface adapted to be disposed in a cylindrical recess 14 in a housing 1 and resiliently located therein by a substantially flat spring 10 whose ends are received in an annular recess 11 in the housing. In a modification, the stone has a cylindrical extension 19 around which a spring 22 is disposed. Modified forms of the spring are shown in Figs. 3, 4 and 6.
Patent GB-1362893-A (GB)
Title: Gripper type looms
IPC: D03C3/24
Filed: 1973-03-21
Abstract: 1362893 Gripper axminster looms JOHNT HARDAKER Ltd 21 March 1973 [8 March 1972] 10733/72 Heading D1E In a gripper Axminster loom the pile yarns 5 pass through tubes 2 whose ends 3 are flexible and are longitudinally moved by a Jacquard to present the yarns to grippers 8. The reading needles 19 are pressed on to the pattern card 20 by springs 21, lifted for selection by a frame 16 and connected directly to the tubes 2. The tubes 2 have projections 11, 12 acted on by guffes 13 and alternate tubes 1a, 1b to 8a, 8b of each set are guided to adjacent lines 25 of grippers.
Patent GB-962084-A (GB)
Title: Process for manufacturing electronic storage tube targets
IPC: H01L21/00
Filed: 1963-03-19
Abstract: 962,084. Cathode-ray storage tubes. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 19, 1963 [March 28, 1962], No. 10758/63. Heading H1D. A target for an electronic storage tube comprises a porous insulating layer having induced conductivity properties to which a predetermined amount of activating metal was added to the insulating material of the layer, prior to forming, so as to predetermine the remanence, defined as the time of subsistence of the induced conductivity in the presence of read-out. The activated insulating material comprising zinc sulphide to which is added 0.1 to 10% by weight of manganese or copper is deposited on an aluminium layer, or on a film of collodion used as a temperary support between the aluminium layer and the insulating layer. The zinc sulphide is vaporized on to the aluminium or collodion under a poor vacuum of the order of 10<SP>-4</SP>mm. Hg, at a temperature of the order of 950‹ C. so as to produce a porous layer. The remanence of the target with 1 to 10% of manganese is 2 to 20 times the time taken for the signal to attain one-half its initial value, depending on the proportion of metallic activator. Specification 798,204 is referred to.
Patent GB-620295-A (GB)
Title: Improvements in and relating to automatic change speed devices
IPC: F16H61/02
Filed: 1940-03-02
Abstract: 620,295. Automatic change-speed gearing. SOC. FRANCOIS CONTE. March 2, 1940, No. 10768/47. Convention date, March 29, 1939. Divided out of and addition to 616,873. [Class 80 (ii)] [Also in Group XXXI] The automatic change-speed gear of the parent Specification is 'provided with -a safety device effective on over-run and comprising means for engaging the lowest gear ratio and/or braking the output shaft. As shown, the torque screw 20 now acts through an auxiliary flange 57 on the main transmission shaft t to move it to the left to engage lower gear ratios and linked levers 51, 54 are provided operative, when a stop 56 is pivoted clear of the lever 51, to move the flange 57 to the left as the torque screw 20 moves to the right under over-running action. The movement of the lever 54 also operates, through a linkage 59 and a cam 67, an expanding brake band 62 co-acting with a brake drum 63 on the output shaft 24.
Patent GB-1248687-A (GB)
Title: Stagewise fluidized roasting of materials containing arsenic and antimony as well as roastable sulfur
IPC: C01B17/52
Filed: 1969-02-28
Abstract: 1,248,687. Roasting sulphidic ores. BADISCHE ANILIN & SODA-FABRIK A.G. 28 Feb., 1969 [1 March, 1968], No. 10825/69. Heading C1A. A process for the production of a gas containing sulphur dioxide consisting of the stagewise roasting of arsenic- and/or antimonycontaining sulphidic materials (e.g. iron pyrites) with a gas containing oxygen in a fluidized bed, wherein there is provided a separate supply of the oxygen containing gas for (and a separate withdrawal of the roaster gas from) the preroasting, and after roasting stages, is improved when using material having a particle size up to 100 microns (e.g. flotation concentrates) by reducing the throughput of both the material and the oxygen to the preroasting stage to 25-45% of that which would be used if material having a particle size up to 10 mm were used, the throughput to the after-roasting stage not being so reduced but the reduced output from the pre-roasting stage being supplemented by the use of an auxiliary pre-roasting furnace. Preferably conditions are a 30-40% reduction compared to material having a particle size of 6 mm. used. In the example ion pyrites are preroasted to FeS.3Fe 3 0 4  at 850-900‹ C. and after-roasted to Fe 2 O 3  at 750-800‹ C.
Patent GB-542144-A (GB)
Title: A new or improved machine for turning grain and the like as for example in malting
IPC: C12C1/15
Filed: 1940-06-24
Abstract: 542,144. Grain turning machines. BURTON, F. G. M. June 24, 1940, No. 10830. [Class 86] A travelling machine for turning grain spread on the floor comprises a frame which is pivoted about a vertical axis and carries a horizontal rotary shaft fitted with stirrers, the frame being oscillated from one side to the other at the end of travel of the machine and effecting a reversal of the drive to the shaft. The stirrer shaft 10 is carried in a frame 8 pivoted at 9 to the main frame, and is fitted with a bevel gear 18 engaging either of two other bevel gears on a driven transverse shaft 20 when the frame is swung by means of a hand lever 17 and pin and slot connection 12, 14. The frame is carried on a pair of wheels 2, which may be driven, a third wheel 3 being mounted in an adjustable frame 4.
Patent GB-1177457-A (GB)
Title: Accelerators for the Vulcanization of Synthetic Rubber
IPC: C08K5/40
Filed: 1968-03-06
Abstract: 1,177,457. Accelerator combinations for EPDM rubber. MONSANTO Co. 6 March, 1968 [6 March, 1967], No. 10887/68. Headings C3E and C3P. A vulcanization accelerator combination for EPDM rubber comprises, (1) a salt of a phosphorodithioic acid of formula wherein R and R<SP>1</SP> are each alkyl, aryl, alicyclic, alkenyl, aralkyl or alkanyl groups each containing less than 19 carbon atoms; X is zinc, iron, cadmium, tin or copper and n is 2, X is iron and n is 3, or X is tellurium or tin and n is 4; and A is a primary, secondary or tertiary amine and r is 1 or 2; and (2) (a) a thiuram of the formula wherein each A, B, C<SP>1</SP>, D is a C 1-9  alkyl or alicyclic group, or A and B or C<SP>1</SP> and D form with the nitrogen a ring containing 4 to 9 carbon atoms, or A and B or C<SP>1</SP> and D with the nitrogen form a morpholine or 2,6-dimethyl morpholine group, and xis a number from 1 to 4; or (b) a salt of a dithiocarbamic acid.
Patent GB-720471-A (GB)
Title: Improvements in or relating to lead alkyl anti-detonant compositions and to liquid fuels containing the same
IPC: C10L1/30
Filed: 1951-05-09
Abstract: A lead fluid composition for adding to gasoline comprises a lead alkyl anti-detonant and a bromo-aromatic amine sufficient to provide 0.5 to 4 theories of bromine based on the lead.  The bromo-aromatic amine may be derived from the amines of benzene, ethyl benzene, isopropyl benzene, xylene, toluene or mesitylene. 3-bromo-4-amino toluene is specified.  The lead alkyl may be tetraethyl lead, either as such, or with one or more (or all) of the ethyl groups replaced by methyl groups, trimethyl propyl lead, dimethyldi-propyl lead or trimethyl-n-butyl lead.  The compositions preferable contain from 0.01 to 0.5 per cent. by weight of the lead, of 2:6-ditertiary butyl-4-methyl phenol.  Lead fluids containing bromo toluene or bromo xylene are disclosed.
Patent GB-1480844-A (GB)
Title: Electrophotography
IPC: G03G15/05
Filed: 1974-06-18
Abstract: 1480844 Electro-photosensitive screens CANON KK 18 June 1974 [19 June 1973 1 Aug 1973 (3) 2 Nov 1973 29 Jan 1974] 10914/77 Divided out of 1480841 Heading G2H The subject-matter of this Specification is identical with part of that disclosed in parent Specification, but the claims are directed to the photo-sensitive screen per se.
Patent GB-982577-A (GB)
Title: Polymers containing phosphorus and a process for preparing them
IPC: C08F30/02
Filed: 1961-03-24
Abstract: A semi-ester of vinylphosphonic acid or a salt thereof is homopolymerized or copolymerized. The comonomer may be another semi-ester or salt or a monomer containing at least one polymerizable double bond.  The semi-ester may be one of vinyl-phosphonic acid and a saturated aliphatic alcohol containing 1 to 20 carbon atoms, an unsaturated aliphatic alcohol, a cycloaliphatic alcohol or an araliphatic alcohol. The salt may be of an alkali metal or alkaline earth metal.  Comonomers specified are styrene, divinyl benzene, vinyl or vinylidene chloride, vinyl esters of aliphatic carboxylic acids containing up to 18 carbon atoms, vinyl esters of aromatic carboxylic acids, acrylic and methacrylic acids, esters thereof, acrylamide, methacrylamide and their N-substituted alkyl derivatives, acrylonitrile, methacrylonitrile, esters of alpha-cyano-acrylic acid, esters of alpha, betaunsaturated dicarboxylic acids, maleic anhydride and unsaturated hydrocarbons. The polymerization may be carried out by irradiation with light and/or in the presence of a free radical initiator, e.g. benzoyl peroxide, methylethylketone peroxide, potassium persulphate, and azodiisobutyronitrile.  Solvent may or may not be present.
Patent GB-582559-A (GB)
Title: Improvements in or relating to cast synthetic resin articles
IPC: C08F265/06
Filed: 1944-06-09
Abstract: Cast articles are prepared by homogenizing, at between 50 DEG  and 80 DEG  C., a mixture of 35-80 parts by volume of a powdered polymerized ethenoid compound and 65-20 parts of a liquid ethenoid monomer, or mixture of monomers, which is a solvent for the polymer and has dissolved or dispersed in it a photopolymerization catalyst, both components of the mixture being free from peroxides or other thermal catalysts, and polymerizing the monomer(s) by means of light. Preferably, the powdered material is such that it will pass through a screen of sieve opening 0.84 mm. and a wire gauge of 0.42 mm. diam., and be retained on a screen of sieve opening 0.30 mm. and a wire gauge of 0.188 diam.  It is also preferred that the powdered material is a polymer of the monomer or monomers used, esters of acrylic and substituted acrylic acids, especially methyl methacrylate, and vinyl acetate and styrene being specified.  Peroxides and other thermal catalysts may be destroyed in the polymerized ethenoid compound by heating and, if desired, malaxating at 120-180 DEG  C. before admixture with the monomer.  Specified photopolymerization catalysts are benzoin, uranyl acetate and nitrate and benzyl alcohol.  The process may be used to manufacture cast moulded articles, e.g. lenses, and for jointing or filling up holes in sheets of polymethyl methacrylate.  Examples are given. Specifications 427,494, 450,305, 550,236 and 569,684 are referred to.