baber/WOPTO huggingface dataset:
Patent GB-1333362-A (GB)
Title: Method of producing caffeine-free black tea
IPC: A23F3/36
Filed: 1972-06-02
Abstract: 1333362 Decaffeinated black tea HAG AG 2 June 1972 [3 June 1971] 25939/72 Heading A2B Aroma substances are extracted from leaf tea in a first step by a dry supercritical gas, the caffeine is extracted therefrom by a wet supercritical gas in a second step, and either the tea from the second step is dried and the aroma substances restored thereto or the tea is extracted with water and the extract combined with the aroma substances.
Patent GB-445768-A (GB)
Title: Improvements in and relating to cakes and other cake-like baked products and methodsof making the same
IPC: A21D2/04
Filed: 1934-09-10
Abstract: In a method of making cakes and other cake-like baked products from a mixture containing both sugar and fat, hydrogen peroxide is employed as the rising agent instead of baking powder and is added in quantity sufficient to effect the necessary rising, and the mixture, the pH value of which is such, being regulated if necessary, that the hydrogen peroxide is substantially decomposed in the time in which it is desired the rising should be completed, is allowed to stand outside the oven until the hydrogen peroxide is substantially decomposed and is then baked.  The time of rising is dependent upon the pH value of the prepared mixture after the addition of the hydrogen peroxide, a mixture having a pH value between 2 and 6 requiring a longer time than a mixture having a pH value of 7 to 8 or more.  If the time of rising does not correspond to the value necessary for obtaining the desired rising in the desired time, the pH value is increased by the addition of a substance which combines with acid, e.g. borax, trisodium phosphate or sodium carbonate or bicarbonate.
Patent GB-1496169-A (GB)
Title: Stabilized polyglycol for high temperatures
IPC: C08L71/02
Filed: 1975-06-19
Abstract: 1496169 Phenylhydroquinone derivatives SNAM PROGETTI SpA 19 June 1975 [4 July 1974] 26198/75 Heading C2C [Also in Division C3] Phenylhydroquinone (I) is prepared by reacting a diazonium salt of aniline with p-benzoquinone to yield phenylbenzoquinone which is reduced by NaHSO 3  in aqueous alcoholic solution to produce I. I may also be prepared by oxidizing p-phenylphenol with K 2 SO 5 . The preparation of p-methylphenylhydroquinone, p-methoxyphenyl- and p-acetylphenyl-hydroquinone is also described starting from pethylaniline, p-methoxyaniline and p-acetylaniline respectively.
Patent GB-171821-A (GB)
Title: Improvements in means for subjecting test pieces to vibration for testing purposes
IPC: G01N3/34
Filed: 1920-09-13
Abstract: 171,821. Gerard, I. J. Sept. 13, 1920. Testing physical qualities of materials.-Apparatus for subjecting a test-piece to alternating tensional, torsional, or. bending stresses derived from the centrifugal action of a revolving mass comprises a plurality of reversely revoluble outof-balance masses 10, 11 and 12, 13 mounted symmetrically on parallel shafts 8, 9 geared together and carried in a casing 20 which is suspended in a structure 22 provided with means for gripping the test-piece 21. The shafts are adapted to rotate in opposite directions and are driven by means of a flexible or telescopic shaft. Fig. 2 shows the application of the apparatus to tensile and compression tests, the casing. 20 being suspended by a spring 23 which counter-balances the weight of the casing and moving parts. Fluctuating tensile tests may be effected by making the spring 23 exert a pull on the test-piece 21. Examples of the application to bending, shearing, torsion, and the testing of a vibrating wire are described and illustrated.
Patent GB-1116545-A (GB)
Title: Electrolytic baths
IPC: C25C3/10
Filed: 1966-06-13
Abstract: <PICT:1116545/C6-C7/1> In a series of aligned electrolytic baths, each bath has an outer casing which is anchored to the ground at a plurality of points; the opposing faces of the casings of adjacent baths are braced by at least one thrust member electrically insulated from at least one of said casings; and both end faces of the series are buttressed, the thrust members and buttresses acting in coordination so that deformation of the sides or bottom of the bath is prevented or reduced.  The casing of each lateral face of each bath may also be buttressed.  In the form shown the baths rest on a concrete slab 101, and each wall of the cell casings is formed from I-section beams 111, 112, metal sheet 113 and flange 115. Buttressing between adjacent cells is provided by cross-pieces 141, 142, of large cross-section; the anchoring means comprises a plurality of bars 134 attached to the casing, e.g. one at each corner of the cell, the lower end being embedded in the concrete slab 101 and having attached thereto a transverse element Figs.2, 3 (not shown); the lateral faces of the cells may be buttressed using a triangular thrust block of iron and concrete, which is anchored to the base, Fig. 4 (not shown) and the end faces of the series may be held by a block of large mass, e.g. of masonry.
Patent GB-220847-A (GB)
Title: Improvements in artificial denture devices
IPC: A61C13/267
Filed: 1923-10-22
Abstract: 220,847. Kiander, L. A. Oct. 22, 1923. Addition to 190,920. Teeth, artificial.-The invention consists in a modification of the non-rigid dentures described in the parent Specification and relates more particularly to the joint. A plate 29, soldered to the bridge plate 16, is recessed at 32 to receive the head 26 of the pin 25, carried, as in the parent Specification, by the clasp 21 which embraces a natural tooth. The neck of the pin passes loosely through a hole in another plate 28 also soldered to the bridge plate. The head 26 of the pin may be variously shaped to limit the movement between the clasp and the plate 16. For example, in Fig. 4 it is shown cut-away at 27, the cut-away parts co-operating with a stop 34 which is carried by the plate 29.
Patent GB-1353357-A (GB)
Title: Substituted 5-sulphamylbenzoic acids
IPC: C07C311/15
Filed: 1971-04-19
Abstract: 1353357 Benzoic acid derivatives PFIZER Inc 19 April 1971 [14 Sept 1970] 26540/71 Heading C2C Novel compounds (I) (including amides, esters and salts thereof) where A is H, C 1-6  alkyl, C 5-8  cycloalkyl, benzyl or Ph, B is the group (II) where n is 0 to 3 and R<SP>2</SP> and R<SP>3</SP> are H, Cl, Br, C 1-4  alkyl, C 1-4  alkoxy CO 2 H, CF 3 , Ph, benzyl or benzyloxy, W is Cl, Br, OH, alkoxy, NH 2 , mono- or di-alkylamino, benzylamino, phenethylamino, piperidino, mono- or di-alkylpiperidino, pyrrolidinyl, hexamethylene-imino or morpholino, and when A is H or alkyl B is also C 5-8  cycloalkyl, or NAB signifies morpholino, thiamorpholino and the S-oxide thereof, piperazinyl, hexa-, hepta- and octa - methyleneimino, 3 - azabicyclo[3,2,2]- nonanyl, tetrahydropyridyl or mono- and disubstituted derivatives thereof (the substituents are alkyl, alkoxy, alkoxyalkyl, OH, Cl, Br, CF 3 , Ph, tolyl, benzyl, benzyloxy, chloromethyl and/or hydroxymethyl) or NAB signifies unsubstituted-, mono- or di-substituted-piperidino (the substituents are alkyl, alkoxy, alkoxyalkyl, OH, Cl, Br, CF 3 , oxo, methylene, Ph, tolyl, benzyl, benzyloxy, benzyloxymethyl, chloromethyl or hydroxymethyl) are made by standard methods. The following compounds are also prepared:- 2-chloro-, -bromo-, and -fluoro-5-chlorosulphonyl benzoic acids, cis- and trans-3,5-dimethylpiperidine hydrochlorides, 1-acetyl-3-(benzyloxy- and -hydroxy)-piperidines, 3-benzyloxypiperidine, 2- fluoro - 5 - (3,5 - dimethylpiperidinosulphonyl)- benzoic acid, 2-fluoro-5(2-[p-chlorophenyl]ethylaminosulphonyl) - benzoic acid, 2 - fluoro - 5- (3 - methylpiperidinosulphonyl) - benzoic acid and 2 - chloro - 5 - (4 - carboxy- and 4 - chloroformyl - butyl - sulphamoyl) - benzoic acids. Pharmaceutical preparations effective in treating atherosclerosis and related cardiovascular diseases associated with elevated lipid levels contain (I) as active ingredient; administration is orally or parenterally.
Patent GB-998451-A (GB)
Title: Improvements in or relating to rotary piston internal combustion engines
IPC: F02B53/12
Filed: 1963-07-04
Abstract: 998,451. Rotary-piston I.C. engines. FICHTEL & SACHS A.G. July 4, 1963 [July 7, 1962], No. 26576/63. Heading F1F. In a rotary-piston I.C. engine of the trochoidal n and n+1 lobe type a spark-plug 14 is lodged in a bore or duct 20 having a uniform diameter of at least 6 mm. and arranged to meet the inner peripheral-surface 5 of the engine casing or enclosure body 1 where the pressure in a chamber 17 is substantially equal to that in an adjacent chamber 16 when a radial sealing strip or fillet 11 passes the mouth of the bore, thereby preventing combustion gases in chamber 17 mingling with fuel-air mixture in chamber 16.
Patent GB-755525-A (GB)
Title: An improved process for chilling cast billets of metals of high melting point, snchas steel, in continuous casting plants
IPC: B22D11/124
Filed: 1953-09-29
Abstract: 755,525. Continuous - casting processes. BOHLER & CO. AKT.-GES. GEB. Sept. 29, 1953 [Sept. 29, 1952], No. 26768/53. Class 83(1). In a process for cooling continuously-cast billets, e.g. of steel, the billet is sprayed with a cooling liquid from the point where it leaves the mould to the point where it is completely solidified, to withdraw only such a quantity of heat that the temperature of the marginal zone remains substantially constant from the leaving of the chill-mould to the solidification of the core, or falls gradually through not more than 200‹ C.
Patent GB-745362-A (GB)
Title: Improvements relating to fire-extinguishing compositions
Inventor: BLACKWELL IAN
IPC: A62D1/00
Filed: 1952-10-24
Abstract: 745,362. Fire - extinguishing powders. PYRENE CO., Ltd. Oct. 26, 1953 [Oct. 24. 1952]. No. 26793/52. Class 47 A powder for extinguishing sodium magnesium and other metal fires comprises mainly a material inert to burning sodium, with the addition of an organic material which, on application to a fire, is decomposed to yield a coherent charred residue, and a fireproof ing and glowproofing agent as defined in The Fireproofing of Fabrics by D.S.I.R. The inert material is preferably sodium chloride, but may be graphite magnesium oxide, a chloride or fluoride of an alkali or alkaline earth metal, or a carbonate of an alkaline earth metal, to which may be added a metal stearate, beeswax or a silicone to make it flow more easily. Various organic materials and fireproofing agents are referred to.
Patent GB-941523-A (GB)
Title: Improvements in or relating to control system for furnaces
IPC: G01K1/14
Filed: 1960-08-03
Abstract: 941,523. Automatic control systems for furnaces. A. DE F. HOLDEN. Aug. 3, 1960 [Aug. 3, 1959], No. 26822/60. Heading G3R. [Also in Division F4] A control responsive to the temperature of a furnace, particularly a gas fired luminous wall furnace, is arranged to supplement the fuel supplied intermittently to the furnace by a timer control independent of the furnace temperature. Air and gas or air above is fed from a mixer 9, Fig. 3, to the plenum chamber 11 surrounding a furnace with a porous fire brick wall 13 through which the gas passes to burn on the inner surface 14. A workpiece 18 is spaced from the furnace walls and a thermocouple 16 responds to the temperature within the furnace remote from the wall 14. The mixer 9 is supplied with air from a blower, and with gas through a valve 22 operated by the thermocouple 16 or through a valve 23 operated intermittently by a timer 25. The effect of the intermittent gas supply is to smooth the swings of the temperature of the workpiece caused by the operation of the thermocouple alone. In a modification, a radiation pyrometer, sensitive to the temperature of the luminous wall 13, is used instead of or in combination with the thermocouple 16.
Patent GB-860143-A (GB)
Title: Improvements in or relating to bistable transistor circuits
Inventor: HONE JOHN GRAHAM ELLIOTT
IPC: H03K3/286
Filed: 1958-08-21
Abstract: 860,143. Transistor bistable circuits. RACAL ENGINEERING Ltd. Aug. 13, 1959 [Aug. 21, 1958], No. 26847/58. Class 40 (6). The state of a two-stable state transistor circuit is indicated by charging a capacitor in accordance with the state of the circuit and switching the capacitor in circuit with a relay which operates or remains unoperated in accordance with the charge. Thus, a capacitor C1 is charged or discharged according to whether transistor Tr2 of a transistor bistable circuit Tr1 Tr2 is non-conducting or conducting. When switch MR2 is operated, if the capacitor is charged current will flow from the capacitor to operate a relay MR/1. The relay, being provided with a holding contact MR1, will remain operated. The resistor R7 limits the capacitor charging current to a low value to prevent loading of the bistable circuit. Switch MR2 may be common to a number of stages in a counter, rectifiers, such as V1, being provided to prevent coupling between them.
Patent GB-1339077-A (GB)
Title: Photographic silver halide material
IPC: G03C1/76
Filed: 1971-04-19
Abstract: 1339077 Gelatin AGFA-GEVAERT AG 19 April 1971 [17 April 1970 4 July 1970] 26894/71 Heading C3H [Also in Division G2] Acetyl gelatin is prepared by adding to acetic anhydride in anhydrous acetone, gelatin dissolved in water at 40‹ C. Phthaloyl gelatin is prepared by adding phthalic acid anhydride in anhydrous acetone to aqueous gelatin solution at 40-45‹ C. Methyl urea gelatin is prepared by adding methylisocyanate in acetone to aqueous gelatin solution at 36-40‹ C. Maleinoyl gelatin is prepared by adding maleic acid anhydride in acetone to aqueous gelatin solution at 35-40‹ C. Benzoyl gelatin is prepared by adding benzoyl chloride in acetone to aqueous gelatin at 40‹ C. Succinoyl gelatin is prepared similarly to benzoyl gelatin. Desamino gelatin is prepared by dispersing gelatin in aqueous sodium nitrite solution, adding glacial acetic acid, washing the swelled gelatin particles, adding aqueous sodium hyposulphite solution, digesting the gelatin with aqueous sodium hydroxide solution and treating successively with 0À3%, 0À2% and 0À1% aqueous acetic acid.
Patent GB-1224547-A (GB)
Title: Switching arrangement for incandescent lamps
IPC: G09F9/307
Filed: 1968-06-06
Abstract: 1,224,547. Control systems for incandescent lamp arrays. INTERNATIONAL STANDARD ELECTRIC CORP. 6 June, 1968 [13 June, 1967], No. 26939/68. Heading H2H. An arrangement for controlling the brightness of individual lamps 12-22 in a group of incandescent lamps comprises connecting each lamp across a respective crosspoint of a coordinate array of wires, each pair of wires providing a crosspoint which is connected to an alternating current source 6 through a respective pair of switches such as 24, 28; 26, 28 &c.,- each switch being shunted by a rectifier, e.g. 34 or 38; all the rectifiers being poled so that the current flows through each lamp whose associated switches are open during the same half of each cycle of the A.C. source thus dimming the lamps. With all the switches open and the supply 6 connected all the lamps 12-22 are supplied by way of the rectifiers 34-42 whereby the lamps are energized such that each is approximately at half brilliance. Full brilliancy of any lamp is effected by closure of the respective switches e.g. full brilliancy of lamp 12 is obtained by closing switches 24 and 28. The switches can be of any suitable type such as mechanical contactors or thyristors. In a second embodiment two assemblies as shown in Fig. 3 are connected to the A.C. source 6 in parallel, the rectifiers in one assembly being oppositely poled to those in the other assembly. Thus the lamps in each assembly are energized in alternate half-cycles of the supply.
Patent GB-1351859-A (GB)
Title: Method of determining internal stress within a member
Inventor: BOHM W
IPC: B23C3/34
Filed: 1971-04-19
Abstract: 1351859 Measuring internal stresses electrically KRAFTWERK UNION A G 19 April 1971 [4 April 1970] 27000/71 Heading G1N A method of determining internal stresses in a body comprises applying a strain gauge DMS to the surface of the body, cutting a slot or groove 2 adjacent the gauge, and measuring the change in surface strain arising as successive elements dz are cut from the bottom of the groove. From the measurements the internal stress parallel to the gauge at a depth z may be found, provided that a decay function Kz has been determined, and this is effected by a calibration test on a specimen wherein internal stresses are simulated by applied forces and a groove or slot is cut in a like manner to the test proper .#E the internal stress at a depth z is given by #@ = F(E À 1 Kz À d#z dZ) # where #z is the stress at a depth z. E is the modulus of elasticity. d#z/dz is the rate of change of surface strain with depth and Kz is decay function which is determined in the calibration test from the formula where the starred values relate to the calibration test. The groove may be circular, and three strain gauges (two at right angles with the third bisecting the angle between them) may be used to determine the strains along principle axes. The strain gauges may be strips stuck to the specimen, and may be of the electrically responsive type. They may be connected in a conventional bridge circuit.
Patent GB-408280-A (GB)
Title: Improvements in or relating to the treatment of lower aliphatic acids
IPC: C07C51/48
Filed: 1932-09-29
Abstract: In the concentration of aliphatic acids by extraction of the aqueous acid with a solvent, a water-precipitating liquid is added during the extraction process.  The extraction may be effected in a series of batch operations, upon acids of increasing concentrations, the water-precipitating liquid being added after the first operation, or a continuous process may be adopted.  Any suitable solvent may be employed such as those mentioned in the parent Specification, for instance, ether, ethyl acetate, and acetone oils, and they may be used in admixture with hydrocarbons or halogenated hydrocarbons such as methylene chloride as described in Specification 283,702, [Class 2 (iii)], and if desired salts may also be employed in the known manner.  The water-precipitating liquids to be added during the extraction may be hydrocarbons such as petroleum distillates or benzene, halogenated hydrocarbons such as carbon tetrachloride, chloroform, dichlorethylene, trichlorethylene, and acetylene tetrachloride, or oxygen-containing liquids such as ketones, esters or ethers mentioned in Specification 400,944; and the water-precipitating liquid may be the same that was initially added to the solvent if such addition was made.  Any suitable apparatus may be employed, such as a vertical column, which may be provided with filling material.  The water-precipitating liquid may be admitted at any suitable point in the extraction apparatus, such as at the middle or between the middle and the end, and if desired it may be admitted at more than one point.
Patent GB-271146-A (GB)
Abstract: 271,146. British Synthetics, Ltd., and Higgins, E. B. Feb. 17, 1926. Addition to 262,958. Arylamides of 2 : 3-oxynaphthoic acid. - The process of the parent Specification is extended to the preparation of acid-substituted arylamides from acid-substituted aromatic amines and 2: 3- oxynaphthoyl chloride by interaction in presence of a weak alkali; any of the three methods of working set forth in the parent Specification may be employed. According to examples (1) mnitraniline is mixed to a paste with sodium bicarbonate and a little water and a benzene solution of the oxynaphthoyl chloride added; (2) mnitro-p-toluidine or 2 : 5-dichloraniline or sulphanilic acid is ground with sodium bicarbonate, further ground with the oxynaphthoyl chloride, and water added; (3) p-nitraniline is mixed with the oxynaphthoyl chloride with or without a solvent or diluent such as benzene and the mixture added to a paste of sodium bicarbonate and water. o-Bromaniline, 3-nitro-5-chlor-4-toluidine, 5-nitro-1-naphthylamine, 1-naphthylaminemonosulphonic acids, and 2-naphthylamine-6-sulphonic acid are also specified as parent materials.
Patent GB-989143-A (GB)
Title: Improvements in or relating to phonographic pickup cartridges
IPC: H04R17/08
Filed: 1963-07-09
Abstract: 989,143. Phonograph pick-ups. GENERAL ELECTRIC CO. July 9, 1963 [July 30, 1962], No. 27136/63. Heading H4J. A V-shaped coupler for a pick-up is made from rubberlike material such as butyl rubber or natural rubber and is shaped to have tapered legs. A stereophonic pick-up (Fig. 4) comprises a two-part housing 11, the interior of which contains two flat ceramic transducer elements 16, 17 (16, Fig. 5, not shown) having their major faces perpendicular to one another. The elements 16, 17 are mechanically connected to a stylus assembly 26 by a V-shaped coupler 41 (Fig. 6 or Fig. 8) having a slit or slot 42 for insertion or removal of stylus assembly 26. The stylus assembly 26 comprises a stylus drive rod 36 embedded at its rear end in rubber contained in the forward portion of a barrel 27. The front portion of stylus drive rod 36 is flattened and oppositely directed styli 37, 38 are retained therein in drilled holes by adhesive or cement The barrel 27 is manually rotatable through 180 degrees by a lever (Fig. 3, not shown) extending laterally therefrom. A spring clip 33 engages against flattened portion 31 or 32 of the barrel 27 in accordance with whether stylus 38 or 37 is in operative position. Transducer elements 16, 17 fit snugly in apertures 161, 171 of coupler 41 and drive rod 36 fits closely in aperture 48.
Patent GB-277523-A (GB)
Title: Improvements in steam-heated systems for apparatus for drying fabrics
IPC: D06C7/00
Filed: 1926-10-30
Abstract: 277,523. Lamb, H. Oct. 30, 1926. Drying materials in long lengths.-The fabric is paassed in a sinuous course between rows of steam pipes P connected to horizontal headers H, H<1> which communicate with steam supply and exhaust mains respectively. The pipes are inclined downwardly from the header H to the headers H' and are joined to the headers by glands and stuffing-boxes disposed outside the edges of the fabric.
Patent GB-846219-A (GB)
Title: Improvements in or relating to processes for the removal of carbon black particles from suspension in an aqueous liquid
IPC: C09C1/58
Filed: 1958-08-25
Abstract: Carbon black particles are separated from an aqueous suspension thereof by contacting the suspension at between 60 DEG  and 95 DEG C. with a water immiscible liquid which is predominantly a hydrocarbon fraction having a boiling point or boiling range between 190 DEG C.-400 DEG C., vigorously agitating the resultant mixture and separating the aggregates of carbon black and water immiscible liquid so formed from the aqueous phase.  The aqueous suspension of carbon black may be obtained as the result of washing gases e.g. H2, and CO, produced by the partial combustion of hydrocarbons with oxygen or oxygen containing gases, with water. The hydrocarbon fraction has a boiling point or boiling range of preferably 190-350 DEG C. and may be for example, catalytically cracked cycle oils, certain lubricating oil fractions, but preferably gas oil.  The aqueous suspension at 60-95 DEG C. is mixed with the liquid hydrocarbon fraction in proportion of 0.7-5 preferably 1-3 parts by weight of hydrocarbon to one part by weight of suspended carbon black, in a propeller mixer operated so that the peripheral speed of the propeller is 4 metres/sec. and creates a vortex in the surface of the liquid mixture.  Aggregates of carbon black and hydrocarbon having a diameter of 2-6 mm. are drawn off from the mixer together with water freed from suspended carbon black and are finally separated from the aqueous phase by means of a screen.