baber/WOPTO huggingface dataset:
Patent GB-1113215-A (GB)
Title: Process for isotope concentration
Inventor: GLEW DAVID NEVILLE
IPC: C01B5/02
Filed: 1965-09-23
Abstract: Deuterium is concentrated in water by enriching with deuterium a hydrogen-containing compound capable of forming a solid hydrate at temperatures not exceeding 30 DEG  C., by contacting with deuterium containing water at a temperature of at least 50 DEG  C., e.g. 50-130 DEG  C., for a time sufficient to obtain exchange of the hydrogen of the compound and the deuterium of the water, separating the deuterium-enriched compound from the deuterium-depleted water, contacting the deuterium-enriched compound with an aqueous medium having normal or enriched deuterium content at a temperature between 30 DEG  and -60 DEG  C. so as to form a solid hydrate separating the solid hydrate from the liqud phase, decomposing the solid hydrate thus isolated, and separating the hydration water enriched in deuterium released thereby, from the deuterium depleted hydrate forming compound. Hydrogen containing compounds specified are hydrogen sulphide, phosphine, an alkyl mercaptan or alkyl phosphine, the alkyl group containing 1 to 4 carbon atoms.  Preferably the deuterium enriched compound is contacted with an aqueous medium having a normal or enriched deuterium content in the presence of a second compound capable of forming a solid hydrate, so as to form a mixed hydrate, said second compound having a molar volume of 58 to 95 c.c.s per gram mole.  Suitable second compounds are given as hydrocarbons containing 3 to 6 carbon atoms, a halogenated hydrocarbon containing up to 2 carbon atoms, thiophene, tetrahydrofuran, or an alkyl ketone, ether or mercaptan having a total of up to 5 carbon atoms.  Particular examples are given where the hydrate former is H2S and the hydrate is formed by contacting this with CCl4 and aqueous NaCl solution cooled to -15 DEG  C.; with gaseous ethyl mercaptan and dissolving the mixture in NaOH solution at 8 DEG  C.; and with an aqueous solution of tetrahydrofuran and cooling to a temperature of 0 DEG  C.
Patent GB-1204512-A (GB)
Title: Process for preparing straight-chain aliphatic and cycloaliphatic sulphonic acids
IPC: C07C303/14
Filed: 1967-09-08
Abstract: 1,204,512. Straight-chain aliphatic and cycloaliphatic sulphonic acids and salts. FARBWERKE HOECHST A.G. 8 Sept., 1967 [9 Sept., 1966], No. 41176/67. Heading C2C. Straight-chain cycloaliphatic and aliphatic sulphonic acids and salts thereof are prepared by a continuous process in which the corresponding hydrocarbons (10-30 C atoms) are reacted with SO 2  and O 2  and the three component reaction mixture subjected to high energy radiation using beta, gamma or X-rays or other high-energy electrons; after forming the sulphonic acid the irradiation is discontinued and the reaction mixture is continuously led to an extraction zone comprising 15-50% sulphonic acid; 5-40% water; 20-60% hydrocarbon and 3-10% sulphuric acid; and into the upper end of which is fed water in such an amount that the proportion of water in the said mixture is maintained, withdrawing said mixture at the lower end as an extract and recycling the supernatant hydrocarbon from the upper end of the extraction zone to the reaction mixture.
Patent GB-1604175-A (GB)
Title: Process for preparing fluorinated polymer containing carbonyl fluoride and/or carboxylic groups
IPC: C08F8/12
Filed: 1978-04-19
Abstract: Fluorinated ion exchange polymers which have both pendant side chains containing carboxylic groups and pendant side chains which contain sulfonyl groups, when used in the form of membranes to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency.  They are made by oxidation of flourinated polymers which have pendant side chains containing sulfinic groups, or both sufinic and sulfonyl groups.  The fluorinated polymers which have pendant side chains containing sulfinic groups, or both sufinic and sulfonyl groups, are in turn made from fluorinated polymers which have pendant side chains containing sulfonyl halide groups by reduction with, for example, hydrazine.  Fluorinated ion exchange polymers which have pendant side chains containing -OCF2COOR groups and also pendant side chains which contain sulfonyl groups can also be made by copolymerization of a mixture of monomers, one of which is a vinyl monomer which contains the indicated carboxylic group; and also by treatment of a polymer which contains -OCF2CF2SO3H or salts thereof with a combination of fluorine and oxygen.
Patent GB-1493478-A (GB)
Title: Silicate-containing flame-resistant adhesive composition
IPC: C04B28/26
Filed: 1975-10-08
Abstract: 1493478 Laminates J A L F CHOLLET 8 Oct 1975 [9 Oct 1974] 41277/75 Heading B5N [Also in Division C4] Laminates are prepared using a silicatecontaining flame-resistant adhesive composition comprising (1) an inorganic component consisting, with respect to the total weight of the composition, of (a) 20-90 wt. per cent of a concentrated aqueous alkali metal silicate solution; (b) 5-25 wt. per cent of a clay and (c) 2-7 wt. per cent of deflocculated asbestos fibres; and (2) an organic component consisting of an aqueous solution of a carboxylmethylcellulose, a starch ester, a dextrin or mixtures thereof, the organic component, calculated as dry weight, being present in an amount of 0À2 wt. per cent to 2 wt. per cent of the total composition. The composition may be prepared by (a) charging the silicate solution in a container and rotating it in a given direction; (b) intimately dispersing a 30-70 wt. per cent aqueous solution of the organic component in the stirred silicate while rotating the organic solution in a direction opposite to that in which the silicate was rotated; (c) adding the clay on completion of the dispersion, with continued stirring and (d) then dispersing the deflocculated asbestos in the stirred mixture. In the examples, the compositions comprise sodium silicate, kaolin, deflocculated asbestos fibres, aqueous solution of starch ester, methyl siliconate, potassium silicate, a powdered lava such as oriolite dinitrosopentamethylenetetramine, carboxy-methylcellulose and dextrin. Salts or oxides of, e.g. Al, Mn, Cr, Pb, Ti, Ca and Fe may be added and an alkali metal (e.g. sodium) fluorosilicate may also be incorporated. The compositions are used to bond black sheet iron to concrete, agglomerated wood-fibre boards to concrete and plywood.
Patent GB-1076230-A (GB)
Title: Fumigating compositions
Inventor: TOGASHI KUNIHIKO
IPC: A01N25/20
Filed: 1964-10-09
Abstract: A fungicidal fumigating composition, suitable for use in greenhouses, comprises one or more chlorinated quinones, nitrocellulose as an oxidizing combustion agent and one or more melamines as a control agent for flaming.  The chlorinated quinone may be 2,3-dichloro-1,4-naphthoquinone or 2,3,5,6-tetrachloro-1,4-benzoquinone, while the melamine may be melamine itself, melamine nitrate or nitromelamine.  The composition may be blended with diatomaceous earth and a binder (e.g. starch, tabu powder or carboxymethyl cellulose), and optionally with other fungicides, bactericides, insecticides (e.g. diazenon), perfumes and pigments, and extruded to form rods or other shaped products. Alternatively, the composition may be mixed with phthalic anhydride and one of magnesium carbonate, calcium carbonate and diatomaceous earth and then packed in a can provided with an igniter.  Tests are described in which the composition is compared with many other fumigating compositions.
Patent GB-1304125-A (GB)
IPC: B66C13/06
Filed: 1971-09-06
Abstract: 1304125 Preventing swinging of loads in gantry cranes FRUEHAUF CORP 6 Sept 1971 [2 Oct 1970] 41479/71 Heading B8B In a method of arresting sway of a load suspended from a gantry crane load ropes reeved from movable sheaves mounted on a trolley assembly on the gantry are inclined with respect to the load by moving the sheaves apart. As shown the trolley assembly 35 comprises a pair of trolleys 39, 41 interconnected by a frame (43), Fig. 2 (not shown) with motor driven screws (45) for relative movement of the trolleys 39, 41. A container 37 is shown carried by a lifting spreader 71 suspended from the trolley assembly 35 at maximum separation of the trolleys 39, 41, minimum separation being shown at the right hand side of Fig. 1.
Patent GB-930996-A (GB)
Title: Improvements in mine roof supports
IPC: E21D11/36
Filed: 1959-09-14
Abstract: 930,996. Mine roof supports. RHEINSTAHL WANHEIM G.m.b.H. Sept. 14, 1959 [Sept. 13, 1958], No. 41649/61. Divided out of 930,995. Class 85. In a mine the roof bars 11 in a face gallery are connected to the roof support 22 of an adjacent roadway by means of a connecting element 25, 27. The part 25 may be a flat web as shown, or may be forked, and is attached to the corresponding end of the bar 11 by a pivot pin 11d and by a wedge 11e. The two parts 25, 27 may be pivoted together at 26 and the part 27 is secured to the support 22 by bolts or by wedges. If the roadway support telescopes separately from that in the gallery then the part 27 may slide on the support. The roof bars 11 support the free gallery either directly (Fig. 1, not shown) or may act as stretchers underpinning other roof supports.
Patent GB-973881-A (GB)
Title: Derivatives of 3,5-diamino-2,4,6-triiodobenzoic acid and their preparation
IPC: A61K49/04
Filed: 1960-12-05
Abstract: The invention comprises (1) compounds of general formula <FORM:0973881/C1/1> in which the substituents R1 which may be the same or different are acyl, R11 is hydrogen or methyl, R111 is methyl, and the salts thereof with bases, and the alkyl esters thereof, (2) compounds of general formula <FORM:0973881/C1/2> in which R1 is acyl and R111 is methyl, and the salts thereof with bases, (3) the following processes: (A) preparation of compounds of general formula <FORM:0973881/C1/3> in which the groups R1 which may be the same or different are acyl groups and R11 and R111 which may be the same or different are hydrogen or methyl, by reacting a compound of formula <FORM:0973881/C1/4> in which R represents an alkyl group, is reacted with an inorganic base and/or an amine, amide or an imide (in which process when R is methyl and R11 and R111 are both hydrogen use of inorganic base alone yields some N-methylated product): (B) reaction of a Compound I with a methylating agent to replace one or more acylamido hydrogens by methyl (methyl esterification by this process is also disclosed): (C) preliminary preparation of Compounds II in which R11 and/or R111 is methyl by reaction of the corresponding unsubstituted compound with a methylating agent: (D) preliminary preparation of Compounds II in which R11 and R111 are hydrogen by reacting with an acylating derivative of a carboxylic acid R1OH a compound of formula <FORM:0973881/C1/5> in which R11 and R111 are hydrogen: (E) preliminary preparation of Compounds III by iodination of a compound of formula <FORM:0973881/C1/6> which may itself be obtained by reduction of the corresponding dinitro compound (formation of which by esterification is mentioned): (F) preparation of N-methyl-3, 5-diacylamino-2, 4, 6-triiodobenzoic acids by reacting a 3-acylamino-5-amino-2, 4, 6-triiodobenzoic acid with a methylating agent to form the N-methyl compound which is then reacted with an acylating agent (any ester formed during reaction may be subsequently converted to the acid).  Reference has been directed by the Comptroller to Specifications 748,319 and 791,997.ALSO:Compounds of general formula <FORM:0973881/A5-A6/1> wherein the substituents R1 which may be the same or different are acyl, R11 is hydrogen or methyl and R111 is methyl, and their salts with bases, and their alkyl esters are said to be useful as X-ray contrast agents.  Use in both soluble (intravenously) and insoluble form is mentioned.  The Specification mentions that such 3,5 - diamino - 2,4,6 - triiodobenzoic acids (and derivatives-acyl, N-alkyl, salts, esters) generally are so useful and also discloses compounds of general formula <FORM:0973881/A5-A6/2> where R1 is acyl and R111 is methyl, and salts thereof with bases.  Reference has been directed by the Comptroller to Specifications 748,319 and 791,997.
Patent GB-1437652-A (GB)
Title: Flexible matrix for forming a toothed portion of a power transmission belt
IPC: B29B15/00
Filed: 1974-01-31
Abstract: 1437652 Belt gearing GOODYEAR TIRE & RUBBER CO 31 Jan 1974 [1 March 1973] 41866/75 Divided out of 1437651 Heading F2Q The subject-matter is the same as that of the main Specification 1,437,651, but the claims are directed to the surrounding internally toothed matrix (32, Fig. 11, not shown) which co-operates with the grooved mandrel (11) to maintain alignment of the teeth (4, 16) of the inner and outer layers of the belt during cure.
Patent GB-909803-A (GB)
Title: Improvements relating to photographic or cinematographic cameras having a view finder and a photo-electric exposure meter
IPC: G03B17/06
Filed: 1959-12-10
Abstract: 909,803. Photographic or cinematographic cameras with exposure meters and viewfinders. MEOPTA PREROV, NARODNI PODNIK. Dec. 10, 1959 [Dec. 10, 1958], No. 41965/59. Classes 97 (1) and 98 (1). A photographic or cinematographic camera has a viewfinder and a photo-electric exposure meter wherein the viewfinder and exposure meter are combined to form a single unit which can be swung in a plane containing the optical axis of the camera lens. In the camera shown, a diaphragm 4 is connected through a gear train to a diaphragm 9 which controls the amount of light reaching a photo-cell 10. This photocell is connected by leads 12 to a galvanometer 13, the pointer 15 of which is visible in the field of a viewfinder 16. An index 18 is pivotable about a pin 19 in accordance with a film sensitivity scale 19a. The pointer is brought into correspondence with the index 18 by moving a handle 21 mounted on the shaft of one of the gear-wheels thereby adjusting diaphragms 4, 9 as well as the pointer. If the object is nearer than 1.5 m. the viewfinder, together with the galvanometer 13 is rotated about a pivot 30 by means of a rod 27 connected at one end to a pin 29 on the viewfinder and at the other end to a slide 22 movable along a scale indicating distance values. A locking device for the slide 22 comprises a button 23 having a thicker portion, said button being normally urged by spring 37 so that the thicker portion engages one of a series of recesses in the plate 22. Specification 429,676 is referred to.
Patent GB-1106216-A (GB)
Title: Telephone dial
IPC: H04M1/31
Filed: 1965-10-04
Abstract: 1,106,216. Impulse transmitters. SOCIETA ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. 4 Oct., 1965 [28 Oct., 1964], No. 41966/65. Heading H4K. In a telephone dial the impulse wheel which opens and closes impulsing contacts is driven during the return motion of the dial from the finger-plate spindle by means of a unidirectional clutch that provides a lost-motion period at the beginning of the impulse train. The clutch is shown in an exploded view in Fig. 2, in which the impulse wheel 7 with contact operating projections 15 freely rotates on a secondary spindle 11 linked by gears to the finger-plate spindle. An arm in the shape of a sector 5 is fixed to the spindle 11 and during the setting motion of the dial rotates anticlockwise to rotate the freely mounted spring 16 on lifting the spring abutment 10. The impulse wheel remains stationary as the tail of the spring merely rides up the inclined faces of the teeth 13 on the face of the wheel; the spring 20 increases the wheel's resistance to motion. During the return motion of the finger-plate the sector 5 turns through 240 degrees before its other face 9 hits the abutment 10 to provide a lost-motion period before the impulse wheel rotates upon the tail of the spring 16 engaging the front face of one of the teeth 13. The clutch and impulse wheel may be mounted on the finger-plate spindle and the sector arm 5 may be provided by two spokes upon the spindle 9.
Patent GB-1530602-A (GB)
Title: Demodulator for fm signals
IPC: H04B1/30
Filed: 1975-10-14
Abstract: 1530602 FM demodulators STANDARD TELEPHONES & CABLES Ltd 4 Oct 1976 [14 Oct 1975] 41988/75 Heading H3A An FM demodulator comprises mixers M1, M2 for mixing the received FM signal with local oscillator LO signals applied in quadrature, the mixer outputs being applied to respective differentiators D1, D2 via associated low-pass filters LP1, LP2 and amplifiers Gl, G2, providing a constant level output, multipliers M3, M4 coupled to the input of a respective differentiator and the output of the corresponding one of the other differentiator and a circuit DA for obtaining the difference in the multiplier outputs as the demodulated signal. The demodulated output may be used to control the local oscillator LO. One of the input signals of each multiplier M3, M4 may be applied via a pulsewidth modulator. The alternative embodiment of Fig. 2 (not shown), formed as an integrated circuit includes a first oscillator locked to an external synthesizer and a second oscillator phase locked to the first for providing the quadrature signals to the mixers M1, M2. Fig. 3 (not shown) relates to a single local oscillator supplying a first amplifier directly and a second amplifier via a 90 degree phase shift. For handling FSK signals, the circuit may incorporate special filters.
Patent GB-1090279-A (GB)
Title: Glucosides and galactosides
IPC: C07H13/08
Filed: 1965-10-04
Abstract: The invention comprises 21-alkanylamino-21-deoxy -b -D-glucosides and galactosides of 4-butyl - 1 - (4 - hydroxyphenyl) - 2 - phenyl-pyrazolidine-3,5 dione, salicylic acid, and alkali metal salicylates, and their preparation by reaction of a 1-chloro-2-alkanoylamino-2-deoxy-3,4,6, tri-O-acyl-a -D-glucose or galactose with 4 - butyl - 1 - (4 - hydroxyphenyl) - 2 phenyl-pyrazolide-3,5 dione or methyl salicylate, followed by hydrolytic removal of the O-acyl groups.  1 - Chloro - N - acetyl - glucosamine and galactosamine triacetates are prepared by reaction of glucosamine or galactosamine with acetic anhydride to give the N-acetyl-derivative, and treating this with acetyl chloride.  The compounds of the invention have anti-inflammatory activity and may be used in pharmaceutical compositions in combination with a carrier, for example in forms suitable for oral or parenteral administration.
Patent GB-996041-A (GB)
Title: Improvements in compressor or turbine blading
IPC: F01D5/14
Filed: 1963-10-25
Abstract: 996,041. Axial-flow compressors; turbine blades. GENERAL ELECTRIC CO. Oct. 25, 1963 [Oct. 29, 1962], No. 42174/63. Headings F1C and FIT. [Also in Division F2] Auxiliary blading for the rotor or stator blades of a compressor or turbine to augment and turn the secondary fluid flow between adjacent blades thereof, comprises flow directing vanes radically disposed on the blades substantially at the surfaces of the boundary layer and so disposed that the secondary, fluid flow passing near the concave surfaces of the blades is directed toward the convex surfaces of adjacent blades. Auxiliary vanes 16, Fig. 4, which may be flat but preferably are cambered, are provided at the root portions of compressor rotor blades 12 substantially at the surface of the boundary layer air at the rotor hub 10. The secondary air, which flows essentially normal to the main flow and, at the hub, flows radially inwardly on the concave surfaces of the blades and radially outwardly on the convex surfaces of adjacent blades, is augmented by some of the main flow by means of the vanes 16 which are oriented to promote flow in this direction. Consequently, more boundary layer air is turned into the main stream to mix therewith, and this results in a higher pressure rise across the compressor before stall. Alternatively, or in addition to, the vanes 16 may be positioned at the tip portions of the blades 12 to augment the secondary flow at the outer casing, in which case the vanes 16 will be oriented to direct flow radially outwardly at the concave surfaces of the blades 12. In an alternative embodiment, Fig. 5 (not shown), flat curved vanes are provided at the root and tip portions of the rotor blades on their concave surfaces only.
Patent GB-1582438-A (GB)
Title: Heat treatment
IPC: C21D1/46
Filed: 1976-10-12
Abstract: Arranged within a frame construction formed by horizontal upper bars (3) and vertical side bars is a refractory wall with a cavity (2) for accommodating a bath. The lateral areas of the frame construction are closed off by means of screening plates (5) and the upper side of the wall is closed off by means of a cover plate with a central opening. A hood (7) is placed on the upper part of the frame construction. The hood opens into an extraction duct (8) and, at its front side, has a window (9) which can be moved up and down. The upper bars (3) are hollow and each upper bar located in the vicinity of the window has a number of holes (12) in its upper side. Air or gas is passed into the interior of the upper bars via a pipe (10), and the air or gas emerging from the holes (12) forms a protective air or gas curtain when the window is open. This design renders unnecessary any additional pipes for the supply of air or gas and, as a result, access to the duct is unhindered. <IMAGE>
Patent GB-1361530-A (GB)
Title: Gas laser generator
IPC: H01S3/0971
Filed: 1972-09-13
Abstract: 1361530 Lasers COMPAGNIE GENERALE D'ELECTRICITE 13 Sept 1972 [24 Sept 1971] 42540/72 Heading H1C A gas laser is pumped by two planar discharges spaced along the laser tube, the magnitude of the discharges being such that laser emission can occur only for a beam which passes through both discharges. In Fig. 2, a first set of planar discharges is produced by anode 50 and cathodes 41, 42, 43, while a second set of orthogonal discharges is produced by anode 70 and cathodes 61-64. Each individual discharge is parallel to the optical axis between mirrors 22 and 23, so that twelve discrete output beams may be produced. Controllable switches 141, 142, 143 and 161-164 activate the cathodes to determine which discharges are formed, and hence to determine which of the twelve outputs occurs. If a lens (not shown) is placed at the laser exit mirror an angularly displaceable output is produced, which may be used for reconstructing superimposed holograms. The active medium may be CO with N 2  and He.
Patent GB-1067863-A (GB)
Title: Improvements relating to the ventilation of motor vehicles
Inventor: CROFT ROBERT LANE
IPC: B60H1/24
Filed: 1962-11-13
Abstract: 1,067,863. Vehicle bodies. HUMBER Ltd. Nov. 13, 1963 [Nov. 13, 1962], No. 42939/62. Heading B7B. [Also in Division F4] In a vehicle, the upper part of the rear window frame 17 is hollow and has an air inlet aperture 30 leading from the vehicle and an air outlet slot in an opposite wall. The width of the window frame includes two apertures 30 each having a removable trim board 19, the inlets being formed in a depression 25 having a reinforcing strip 44. A rubber non-return flap 31 covers each aperture 30. The outlet slot is provided with a channel section baffle 32 to inhibit entry of water. Any water in the frame may drain through hollow window pillars. A heater unit, Fig. 3 (not shown), located at the front of the vehicle has a radiator matrix (40) fed with ram air and includes a control flap (41). Adjustment of the latter directs heated air downwardly from the unit and/or up through a duct (42) to the windscreen.