baber/WOPTO huggingface dataset:
Patent GB-1178956-A (GB)
Title: Method for operating fluorescent tubes
IPC: H05B41/20
Filed: 1968-04-29
Abstract: 1,178,956. Supply systems for discharge lamps. DOMINITWERKE G.m.b.H. 29 April, 1968 [28 July, 1967], No. 20237/68. Heading H2H. Fluorescent tube is connected to two supplies of different frequencies in such a way that lighting is not interrupted when one supply fails. The tube 1 is supplied from the mains 4 through a choke 2 and is also connected to a battery supply 8 by way of an inverter 12. The battery is charged from the mains through a transformer 5, bridge 6 and diode 7. During mains operation, an electronic switch 13 on the inverter is held open by a voltage appearing at the terminal 14 of the bridge 6, but when the mains voltage falls below a preset value, the switch 13 closes so that the tube 1 is supplied from the battery 8. The tube may operate with both sources connected simultaneously if the mains voltage is low but not zero. Restoration of the mains causes the switch 13 to open, disconnecting the battery supply. A resonant LC circuit 9, 10 enables the tube to be ignited when only the battery supply is available, since a high voltage will be generated across the inductor 10 when the inverter is switched on. The circuit components may be so chosen that the tube output is lower on battery operation than on mains supply.
Patent GB-1335773-A (GB)
Title: Device for use with a tilting and turning window
IPC: E05D15/52
Filed: 1971-04-19
Abstract: 1335773 Device for window with alternative movements; multiple pivots WILH FRANK GmbH 19 April 1971 [24 Jan 1970] 20299/71 Headings E2F and E2M A locking and pivoting device which allows a window to be optionally pivoted about a horizontal or vertical axis comprises a plate 34 secured to a vertical rebate in the opening side of the fixed frame 38, one end of the plate having upstanding walls 35, 36 and the other end pivotally mounting a link 33 having a forked end 50, 52, one limb 52 co-operating with the walls 35, 36 to thereby limit the pivotal range of the link and the other limb 50 having a clearance between it and the wall 35: a slot 53 in the link opens on the same side of the link as the link 50 and receives a hinge pin 54 (defining the window's horizontal pivot axis) secured to the window's pivotal frame. A locking member 51 on the pivotal frame is movable between three positions, viz:- a first position between the walls 35, 36 which locks the window; an intermediate position allowing the window to pivot about a vertical axis, the member 51 passing through the clearance between the limb 50 and wall 35; and a third position between the limbs 50, 52 which permits pivoting of the window (and the link) about a horizontal axis. The pivotal connection between the link and the plate 34 may comprise either an arcuate tongue 42 engaging a complementally shaped slot in an end wall 37 on the plate 34 together with a screw or hollow trunnion 49 secured to the plate and retentively engaging in an elongate slot 55 in the link 33 or merely a trunnion interconnecting the link 33 and plate 34, Figure 1 (not shown).
Patent GB-148389-A (GB)
Title: Improvements in or relating to a method for the fractional distillation of low gradefuels
IPC: C10B1/04
Filed: 1920-07-09
Abstract: 148,389. Berztit Ges. Oct. 26, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Retort furnaces.-Peat, lignite, &c. are carbonized in a vertical and annular retort in which the upper part 8 of the charge is heated to a temperature of about 150‹ C., and the lower part 7 to a temperature of 300-350‹ C. The heating- gases enter passages 6 and pass upwards to and fro through pipes 5. The solid product is cooled in an extension 3, and discharged continuously through an outlet 10.
Patent GB-1205101-A (GB)
Title: 3-oxo-a-nor-b-homo-pregnadienes and a process for their manufacture
IPC: C07J75/00
Filed: 1968-04-30
Abstract: 1,205,101. A - Nor - B - homo - steroids. CIBA Ltd. 30 April, 1968 [3 May, 1967 (2)], No. 20376/68. Heading C2U. Novel A-nor-B-homo-steriods of the formula (in which a 7,7a-double bond may be present; R 1  is H 2 , CH 2 , H(α-OH) or an ether thereof or H(α- or #-CH 3 ); R 2  and R 4  are each H or a free, esterified or etherified OH group; R 3  is O or alkylenedioxy, or R 2 , R 3  and R 4  together are bismethylenedioxy; R 5  is H 2 , O or H(#-OH); and R 6  is H or a halogen, or R 5  and R 6  together are a 9(11) double bond or an epoxy group) are prepared by (1) #<SP>1</SP>-dehydrogenation of the corresponding 1,2-saturated steroids; or (2) by reacting the corresponding steroids saturated in the A and B rings and containing a 2-(COR) substituent in which R is H or a free or esterified carboxyl group with a halogen or halogen donor and then dehydrohalogenating the reaction product, and, if desired, reacting a resulting #<SP>1,5</SP>-diene with an N-halo-acyl-amide or -imide and dehydrohalogenating the product to introduce a 7(7a) double bond and/or (if an 11-OH group is present) a 9(11) double bond In the products, esterified or etherified hydroxy groups or ketalized oxo groups, may be hydrolysed, 11-ols may be converted to #<SP>9(11)</SP>-compounds, and these in turn may be converted to 9,11- epoxides, and a bis-methylenedioxy group can be removed. Starting materials.-Reduction of the 17,20; 20, 21 - bis - methylenedioxy (b.m.d.) derivative of 3,6,20 - trioxo - 11#,17α,21 - trihydroxy- A - nor - B - homo - pregnane with LiAlH 4  gives the b.m.d. derivatives of 6,20-dioxo-11#, 17α,21 - trihydroxy - A - nor - B - homopregnane and the corresponding #<SP>3</SP>-pregnene and 3-oxo-6- desoxy - #<SP>5</SP> - pregnene (use of NaBH 4  followed by Oppenauer oxidation gives a mixture of the 2 unsaturated ketones); catalytic hydrcgenation of the same starting material or of the unsaturated ketones gives the b.m.d. derivative of 3,20 - dioxo - 11#,17α,21 - -trihydroxy A - nor - B- homo - pregnane (and the isomeric 6 - oxo - 3- desoxy compound) which on oxidation gives the 11-one; reaction of the #<SP>5</SP> compound with perchloric acid gives 3,20-diozo-11#,17α,21- trihydroxy - A - nor - B - homo - #<SP>5</SP> - pregnene (which on acetylation gives the 21-acetate) while oxidation of the #<SP>5</SP>-compound gives the b.m.d. derivative of 3,11,20-trioxo-17α,21-dihydroxy-A - nor - B - homo - #<SP>5</SP> - pregnene which can be reduced back to the 11#-ol, also obtained when the b.m.d. derivative of 3,11,20-trioxo-17α,21- dihydroxy - A - nor - B - homo - #<SP>1,5</SP> - pregnadiene is reduced then oxidized in position 3. The b.m.d. derivative of 2-methoxalyl-3,11,20- trioxo - 17α,21 - dihydroxy - A - nor - B - homo - pregnene is prepared from the 2-unsubstituted compound and dimethyl oxalate. The A-nor-B-homo-steroids of the invention have anti-inflammatory properties and may be made up into pharmaceutical compositions or added to animal feedstuffs or feedstuff additives.
Patent GB-852383-A (GB)
Title: Process for alkylating aromatic hydrocarbons
IPC: C07C2/86
Filed: 1958-06-25
Abstract: Aromatic hydrocarbons are alkylated by reaction with an alkyl halide in the presence of a Friedel-Crafts catalyst and indane or an alkyl indane in an amount sufficient to inhibit the formation of stable phenonium ions.  Reaction conditions include 0,001-1 mol of catalyst per mol of aromatic hydrocarbon, 50-350 DEG F., 0-50 p.s.i.g. and 0,1-10 hours.  The reaction is particularly useful for alkylating polymethyl benzenes, e.g. forming durene from pseudocumene.  The amount of indane added may be 2-6 volume per cent based on the aromatic hydrocarbon.  Indane or a mono-, di-, tri-or tetra-methyl or -ethyl indane may be used.
Patent GB-427623-A (GB)
Title: A method of treating metallic articles or the metallic surface layers or coatings of articles
IPC: C23C8/36
Filed: 1933-07-19
Abstract: Carbides, silicides, phosphides, borides and nitrides of metals and alloys are produced by subjecting the metals or alloys to the action of one of the elements, carbon, silicon, phosphorus, boron and nitrogen in an atmosphere at sub-atmospheric pressure which is ionized by means of an electric discharge.  The elements may be present in a gaseous, vaporous or atomized state or in the form of compounds from which the elements are dissociated by the ionization discharge.  British Specifications 276,390, 312,279, [both in Class 82 (ii)], and 409,718, [Group II], and U.S.A. Specification 1,837,256 are referred to.
Patent GB-1135464-A (GB)
Title: Treatment of silicon dioxide
IPC: C01B33/18
Filed: 1966-05-09
Abstract: 1,135,464. Treating silica. COLUMBIAN CARBON CO. 9 May, 1966 [10 May, 1965], No. 20446/66. Heading C1A. Particulate amorphous silica having an acidic halogen content is treated with ammonia vapour in the substantial absence of liquid water and at a temperature below that at which the halogen is removed, to alter the physical and chemical properties of the silica without sintering or accretion. The silica used has a particle diameter from 5 to 30 mÁ, a surface area (B.E.T.) greater than 100 m.<SP>2</SP>/g., a bulk density between 1 and 2 1b./ft.<SP>3</SP> and has preferably a halogen content between 1 and 3 wt. per cent. It is treated below 250‹ F. with sufficient ammonia to neutralize between <SP>1</SP>/ 10  and <SP>2</SP>/ 3  of the acidity due to the halogen. The ammonia may be formed by heating ammonium carbonate and passing the gases evolved through the silica. This treated silica improves the properties of natural rubber.
Patent GB-531156-A (GB)
Title: Improvements relating to overload protective electric switches or cut-outs
IPC: H01H71/02
Filed: 1939-07-13
Abstract: 531,156. Automatic circuit-breakers. LICENTIA PATENT - VERWALTUNGS GES. July 13, 1939, No. 20462. Convention date, July 13, 1938. [Class 38 (v)] A screw-plug or other small overload cut-out has the magnet c, armatures g, switch-mechanism f, and fixed and moving contacts o, p, q, all mounted in or on an insulating carrier e which can be inserted as a unit in casing a, the mechanism f including a toggle which can be tripped by g or by a thermostat (not shown). The lower part of the casing and that part of it which lies adjacent the carrier-face, form an elongated spark-chamber in which two arcs s, t are drawn and blown in opposite directions by the magnet-flux. The contact-member i is connected to mechanism f by a pivot n, and a rib r separates the fixed contacts. A closing- button h and tripping-button (not shown) are provided.
Patent GB-441136-A (GB)
Title: A process for separating hydrocarbon oils into their components
IPC: C10G21/04
Filed: 1934-07-12
Abstract: Hydrocarbon oils containing lubricating-oils are separated into their components by treating with two solvents led in countercurrent and consisting of a solvent for non-paraffinic components and a saturated preferably aliphatic hydrocarbon solvent of paraffin components and containing at least 11 carbon atoms and having a boiling range lying outside that of the oil being treated.  Non-paraffinic solvents specified are liquid sulphur dioxide, furfurol, phenols, cresols, ketones, dichlor diethyl ether; aromatic or aliphatic nitriles or nitro-compounds such as nitrobenzene, nitronaphthalene or nitromethane, monochloracetonitrile, naphthonitrile, benzonitrile; organic rhodanides such as methyl rhodanide; amines such as aniline, naphthylamine; esters of mono- or polyvalent alcohols such as methyl or glycol formate; methyl or ethyl alcohol; thiophene aldehyde, nitroaniline or nitroanisole.  Saturated hydrocarbon solvents specified are kerosene, hexadecane, refined spindle oil, paraffin wax, paraffinum liquidum, homologues of deca or tetrahydronaphthalene, and naphthenes.  Diluents such as benzol, toluene, naphthalene or ether may be added.  The two solvents which are substantially mutually immiscible may be introduced at opposite ends of an extraction column to which a temperature gradient is applied over the whole or a part of the column and the oil introduced at an intermediate point; or the oil may be mixed with one solvent and passed in counterflow with the second solvent; or the oil flowing in counter current with one solvent is treated over a part of the path with the second solvent, the resulting extract is drawn off, freed from solvent and the residue reintroduced into the system.  The extraction may also be effected in a series of mixers and settlers. The two solvents used should have appreciably different molecular weights whereby the critical solution temperature is substantially higher than the extraction temperature; for example, kerosene with nitrobenzene or liquid sulphur dioxide; refined spindle oil with acetonitrile; gas oil with maleic or succinic nitrile.  Cracked oils or distillates are preferably dewaxed before extraction.  The purified lubricating oils may be finally treated with sulphuric acid or a bleaching earth.  The process may also be applied to regenerate waste hydrocarbon lubricating oils.  Specification 355,294 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the treatment of hydrocarbons other than lubricating oils and using as saturated hydrocarbon solvent, hydrocarbons having at least 3 carbon atoms.  This subject-matter does not appear in the Specification as accepted, but appears in Specifications 441,104 and 441,105.
Patent GB-943290-A (GB)
Title: Improved ship's boat disengaging gear
Inventor: BEALE REGINALD FREDERICK
IPC: B66C1/34
Filed: 1961-06-07
Abstract: 943,290. Releasing boats from davit tackle. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 28, 1962 [June 7, 1961], No. 20502/61. Heading B7S. [Also in Division F2] A hook attached to a ship's boat and for releasably engaging loops &c. attached to the davits is pivoted on a pin 9 fixed in a pair of parallel plates 10 extending up from the boat to the yoked end shown. The hook has a hook member 1 at one end and a counterweight 4 at the other and when the boat is waterborne the counterweight can be lifted, Fig. 3 (not shown), to pivot the hook in a clockwise direction to release the davit loop from the slot 11 of the yoke. The hook member 1 is pivoted on a pin 2 in two cheeks 3 of the hook, but is normally locked by a latch 5 pivoted on a pin 6 in the cheeks. For quick release before the boat reaches the water, the latch can be freed to allow the hook member 1 to pivot clockwise on the pin 2, Fig. 2 (not shown), by removing a safety pin 7 from the cheeks 3 and by slackening a slip wire attached to a pin 8 on the latch 5 to allow dropping of the contacting portions of the latch and hook member.
Patent GB-453905-A (GB)
Title: Improvements in or relating to the production of building material
IPC: B27K5/04
Filed: 1935-07-18
Abstract: Wood wool is made by subjecting rough block wood or round wood about 0,5 m. in length to the action of steam at low super-atmospheric pressure, e.g. 1 1/2 atmospheres, in steam chambers or subterranean steam apertures, lead acetate in the form of fine rain being fed with the steam, and then converting the so-treated wood into wood wool, which is mixed with cement and water to make building material, e.g. slabs.
Patent GB-148818-A (GB)
Title: Process for the blast-proof closing of discharging devices for shaftfurnaces and such like
IPC: F27B1/20
Filed: 1920-07-10
Abstract: 148,818. Stehmann, H. May 4, 1917, [Convention date]. Discharging.-Discharge valves for shaft furnaces &c. are so arranged that they are held against their seats by the pressure of the blast, the weight of the material and their own weight, and the seats are automatically cleaned. As shown, three valves are arranged in the outlet from the discharge hopper a, two being conical ground-in valves i, k and the third a pivoted flap c, and they are coupled together in such a way that when the middle one i is open the other two are closed and vice versa. The valves i, k have sloping tops to facilitate clearing of material, and the lower one carries a brush m which cleans the valve-seat prior to closure.
Patent GB-324062-A (GB)
Title: Improvements in saxophones
IPC: G10D7/08
Filed: 1928-07-17
Abstract: 324,062. Biolcati, O. July 17, 1928. Saxophones.-For playing the high notes D to F a saxophone is provided with a set of finger plates 1 - - 4 placed near the usual plates for the low notes D to F so that they can be operated by the fingers of the right hand. The plate 1 is carried by a spindle 12 provided at its upper end with a lever 13 acting through a lever 14 upon a lever 15 which is fixed to a shaft 16 carrying a tappet 17 adapted to lift the valve plate 19. The valve 29 is operated by the plate 2 through levers 28, 30, 31, 32 and rods 33, 34. The plate 3 actuates the valve 9 for top E through a spindle 5 and tappet lever 11, while the valve 35 is operated by the plate 4 through a. spindle 39, arm 40 and lever 36. The usual keys d, d<1>, f for opening the valves 19, 29, 35 may be retained as an alternative method of playing the high notes D, D# and F. The finger plate 1 is provided with an extension a which lies under the plates 2, 3, 4 so that it is depressed when any of these three plates is depressed.
Patent GB-650008-A (GB)
Title: Improvements in or relating to high tension supply circuits
Inventor: LEE DAVID FREDERICK
IPC: H04N3/18
Filed: 1948-08-05
Abstract: 650,008. Converting. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 5, 1948, No. 20674. [Class 38 (ii)] A high-tension supply circuit for deriving hightension voltages during the return strokes of a sawtooth current comprises a thermionic valve 1 having in its output circuit the primary winding 2 of a transformer, the secondary winding 3 of which is coupled to the deflection or scanning coils 4, and a rectifier 6 connected to the primary winding for rectifying the voltages set up across the winding during the return strokes of the saw-tooth current wherein the shunt inductance of the primary winding is arranged to be low. Thus, there is no need for a loading inductance to be used in series and shunt with the scanning coils. The Specification defines the term " low " as meaning that the value of the shunt inductance of the primary winding is less than the value of the inductance of the scanning coils when reflected into the primary winding.
Patent GB-702140-A (GB)
Title: Improvements in or relating to shuttering for the construction of concrete columns, beams and other structures
IPC: E04G13/02
Filed: 1950-08-21
Abstract: 702,140. Shuttering for casting columns and beams. HAWES, A. H. Aug. 21, 1951 [Aug. 21, 1950], No. 20679/50. Class 20 (2) Shuttering for a column comprises panels 10 having reinforcing angle bars 11 engaged on each side of the column by aligned angle bars 12, the panels being connected at each corner of the column by angle irons 14 connected to the angle irons on the panels by looped brackets 22 and wedges 68 described in Specification 594,666, the angle irons 14 being connected end to end by tube couplings 17 described in Specification 642,365 which engage tubular sockets 16 welded to the angle irons. The brackets 22 are connected to the angle irons 14 by screws 13 passing through holes 15 and screwing into flanges 26 of the brackets 22. The angle irons 14 seat on the corners of the shuttering by means of lugs 18 shaped to fit the corner of the angle iron and the edges of the panels. The shuttering is secured to scaffolding by clamps 19a described in Specification 668,372, engaging the holes in the angle irons 14. The shuttering may also be used for casting a beam. Specification 570,661 also is referred to.
Patent GB-629111-A (GB)
Title: Method of adhesively uniting materials, especially metals, and adhesives therefor
IPC: B32B15/08
Filed: 1946-07-12
Abstract: Materials, especially metals, are united by hardening between them with heat, a molten mixture which is not spreadable at ordinary temperature, and which contains a solid ethylene oxide-phenol derivative containing at least two ethylene oxide groups and a solid hardening agent.  The ethylene oxide-phenol derivatives may be prepared by condensing a phenol in alkaline medium with, for example, epichlorhydrin or dichlorhydrin. Particularly suitable phenols are 4.41 - dioxyphenyl methane; 4.41-dioxydiphenyl methyl methane and 4.41-dioxydiphenyl dimethyl methane.  These phenols may be mixed with 4.41-dioxydiphenyl sulphone.  Other phenols mentioned are resorcinol and hydroquinone.  Solid hardening agents mentioned are phthalic anhydride, maleic anhydride, adducts from maleic anhydride and unsaturated substances, caustic soda, calcium oxide, sodamide, guanidine, diphenyl guanidine, piperazine, hexamethylene-tetramine, cyanamide, dicyandiamide, melamine, other aminotriazine derivatives such as 2.4-diamino-1.3.5-triazine, and its N2,N4-dimethyl or its 6-phenyl, 6-oxynaphthyl or 6-phenoxyderivatives, cyanuric acid, para phenylene diamine, polyamides or polyureas, resorcinol, hydroquinone dimethyl ether, pyragallol trimethyl ether, pyragallol tribenzyl ether and paraquinone.  A polybasic acid anhydride, e.g. phthalic anhydride, may be mixed with a small amount of its corresponding imide, or with a substance such as diphthalyl.  The adhesive mixture may also include a reducing agent, e.g. metal powder; an oxidizing agent, e.g. potassium nitrate, or barium peroxide; sulphur; fibrous materials, e.g. asbestos, or fillers, colouring materials or plasticizers.  The surfaces to be united may be previously oxidized, phosphatized or provided with some other coating.  The adhesive mixture which may be compressed to the form of a solder stick may be applied to heated surfaces and then melted, or it may be applied in molten state, or it may be applied as a solution or dispersion, and melted between the surfaces after removal of the solvent or dispersing agent.  Hardening is performed at 100-200 DEG C. or higher.  The surfaces united may be similar or different, e.g. iron with aluminium, copper or rubber; or aluminium with glass or wood.  A number of examples are given and figures quoted for shear strengths obtained in standard conditions with many different adhesive mixtures.  The dry adhesives are in all cases applied as powder to the preheated surfaces.  In most of the examples the resin intermediate employed is the bis-ethylene oxide derivative of 4.41-dioxy-diphenyl dimethyl methane.  In one example, dichlorhydrin is acted upon a mixture of this phenol with dioxydiphenyl sulphones. A great variety of hardening agents is employed.  Specifications 518,057 and 579,698 are referred to.
Patent GB-794837-A (GB)
Title: Improving film-forming aqueous dispersions of copolymers of styrene and butadiene rich in styrene
IPC: C08L25/10
Filed: 1955-07-19
Abstract: Film-forming aqueous dispersions of a copolymer of 70 to 99 per cent of styrene and 30 to 1 per cent of butadiene, contain 1 to 10 per cent by weight of the copolymer of a volatile organic solvent. Petroleum ether, gasoline, benzene, toluene, xylene, methyl chloride, chloroform, carbon tetrachloride, ethyl ether, tetra- and decahydronaphthalene, and carbon disulphide may be used and are preferably stirred into aqueous copolymer dispersions with the addition of oil- or oil- and water-soluble emulsifiers such as oleic acid-ethylene oxide condensation products.  Fillers, dyestuffs, softening agents, such as distyrene diphenylamine, o-cresyl camphone, thickening agents such as casein, sodium alginate and methyl cellulose, hydrophobing assistants such as wax emulsions or ammonium stearate, dispersions of polymers or copolymers of vinylidene chloride, vinyl chloride, styrene, butadiene-acrylonitrile, vinyl ethers, acrylic acid esters, rubber latex and aqueous dispersions of chloro-rubber may be present. The dispersions applied to a glass plate, metal band or wallpaper with size printing colour, yield a transparent colourless, tearproof, waterproofed film especially suitable for washable wallpaper and waterproofing walls.