baber/WOPTO huggingface dataset:
Patent GB-263730-A (GB)
IPC: C10G19/06
Filed: 1926-03-08
Abstract: 263,730. Litharge, Recovery Corporation, (Assignees of Kinsel, A.). Dec. 26, 1925, [Convention date]. Oils, recovering. - Solid metal reaction products and oils are recovered from the sludges obtained in the purification of hydrocarbon oils by lead compounds, by heating and agitating the sludges, and centrifuging or allowing to settle and withdrawing the different layers. in an example, the sludge obtained in a tank A in which oil has been treated with sulphuric acid and then with alkaline sodium plumbite is run into a still D, and is heated to about 180-200‹ F. for 1-2 hours by steam passed through a coil 11 while being agitated by air and by steam injected through perforated pipes 13 and 10 respectively. Vapours escape by a pipe 2 to a condenser C and a receiver B from which recovered light oils are drawn off through a pipe 3. After settling, the upper layer of oil and tarry substances is withdrawn through a pipe 4, the middle layer of spent sodium plumbite is run off through a pipe 5, and the lead sulphide is washed into a pipe 6 and filter bed E by water from a pipe 8. The spent plumbite and the lead sulphide may be used to prepare sodium plumbite. Stratification and filtration are preferably assisted by adding 0.2 per cent by weight of ferric sulphate or other coagulant to the sludge when its temperature reaches 180‹ F. Other coagulants specified are watersoluble salts of aluminium, magnesium, copper, chromium, iron, cobalt, manganese, nickel, and zinc. or a suitable organic or inorganic acid, e.g. formic or sulphuric acid. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of sludger produced by compounds of metals other than lead. This subject-matter does not appear in the Specification as accepted.
Patent GB-1363831-A (GB)
Title: Process for the oxidation of iron chloride
IPC: C01B7/03
Filed: 1973-02-09
Abstract: 1363831 Oxidation of Fe chloride E I DU PONT DE NEMOURS & CO 9 Feb 1973 [9 Feb 1972] 6472/73 Heading C1A Fe oxide and Cl2 are produced by passing O2 and Fe chloride upwardly through a reaction area divided into at least two vertically adjacent cones each separated from the next by a foraminous member, and maintaining a concurrent flow of inert solid particles through the reaction area. The chloride may be FeCl3 or FeCl2 and may be fed in powder form and then vaporized. The reaction area is maintained at 400- 1000‹ C. The solid particles may be sand, SiO2, Al2O3, TiO2 or Fe oxide, and are preferably recycled.
Patent GB-1002760-A (GB)
Title: Battery charger
IPC: H02J7/12
Filed: 1963-02-19
Abstract: 1,002,760. Automatic battery charging systems. VAPOR CORPORAMION. Feb. 19, 1963 [May 31, 1962], No. 6607/63. Heading H2H. [Also in Division G3. A battery charging rectifier comprises a transformer 14 in series with a constant current type transductor 20 the central windings 23 of which is energized from the battery terminals 10, 11. A circuit comprising transistors 33, 39 and a reference Zener diode 30 energizes a relay 30, 32a to break the A.C. circuit when the battery voltage exceeds a determined value, the ratio of off to on periods increasing with battery voltage. A relay 25, 25a breaks the battery circuit when the supply is disconnected and another relay 46, 46a breaks the supply circuit to prevent cycling when a battery is not connected.
Patent GB-917981-A (GB)
Title: Improvements in and relating to the recording of recurrent phenomena
IPC: G01L23/32
Filed: 1959-02-25
Abstract: 917,981. Cathode-ray oscilloscopes. CESKOSLOVENSKE ZAVODY NAFTOVYCH MOTORU PRAHA NARODNI PODNIK. Feb. 25, 1959 [Feb. 26, 1958], No. 6614/59. Class 40 (7). In a method for the reproduction on the fluorescent screen of a cathode-ray tube (C.R.T.) indicator of one cycle or part of a cycle of periodically repeated events and for its permanent photographic record, the timebase of the indicator runs continuously, a portion of the timebase controls C.R.T. beam intensifying, the timebase portion is synchronized at a selected time relative to the beginning of the event cycle, the time of beam brightening is made dependent on the release of the camera shutter and on the synchronization of the portion of the timebase, and the intensity of the beam is constant during the brightened period. As applied to the recording of part of a cycle of pressure change within an engine cylinder, camera shutter release switch V 3  prepares electronic switch unit II for subsequent closure by a synchronizing impulse from the electromagnetic transmitter of unit M which includes a pin on the engine flywheel, the consequential negative output pulse from thyratron E 3  causing valve E 1  of bi-stable trigger I to be cut-off and a positive pulse is applied via contact y to brighten the C.R.T. beam. The impulse from unit M also synchronizes the timebase generator Z, a negative fly-back pulse from which reverses trigger I so as to cut-off the C.R.T. beam. The duration of the display is adjusted at the timebase generator and its initiation is adjustable by displacement of the pin on the engine flywheel.
Patent GB-659204-A (GB)
Title: Improvements in automatic firearms
IPC: F41A11/00
Filed: 1949-03-10
Abstract: 659,204. Automatic guns. ZBROJOVKA BRNO, NARODNI PODNIK. March 10, 1949, No. 6623. Convention date, March 10, 1948. [Class 119] Relates to automatic small arms of the type having a blow-back breech block 3, and a butt 1 and barrel 5 connected by a removable cross pin 10 also rotatable to form a safety and changefire device. According to the invention the arrangement of gun parts is such that, after removing the pin 10, the gun breaks down into three sub assemblies (a) the butt 1, breech casing 2, breech block 3 and return spring 4, (b) the barrel 5 with trigger mechanism 6 and fore end 7, and (c) the pistol grip 8 and trigger-guard 9. The barrel is shown with a recessed sleeve 12 retaining the casing 2 and fore end 7, and the pistol grip and trigger guard assembly is retained by projections 18, 19 engaging with recesses in the barrel and breech casing when the pin 10 is inserted to fasten the part 16 of the barrel to the depending sides of the breech casing. The pin 10 is retained by a bayonet lock (not shown) with a spring leaf on the casing 2 at the end of the pin remote from its operating handle.
Patent GB-678430-A (GB)
Title: Improvements in method of and apparatus for determining moisture content of tobacco
IPC: G01N27/04
Filed: 1951-03-20
Abstract: 678,430. Electric tests and measurements. AMERICAN TOBACCO CO. March 20, 1951 [April 20, 1950], No. 6667/51. Class 37. Apparatus for measuring the moisture content of tobacco in a bin 22 comprises an electrode assembly 6 containing two rows of electrodes joined in parallel, supported from a box of large area, attached to a piston 5 in an air cylinder 2, so that the electrodes are forced into the tobacco under pressure for a predetermined period before measuring the current flowing through the tobacco when an E.M.F. is applied to the electrodes.
Patent GB-564987-A (GB)
Title: Improvements in or relating to the prevention of mist on glass and similar transparent sheet material
IPC: C09K3/18
Filed: 1940-04-12
Abstract: In the prevention of the formation of mist and frost on glass and the like, a thin layer is applied thereto consisting of a transparent gel-forming adhesive substance such as gelatin, this water absorbent property of which is increased by the addition of a water-soluble acid such as acetic acid.  When using other acids such as salicylic or phosphoric acid, a surface tension reducer such as sodium taurocholate or glycocholate or saponin is added. The material may be applied in the form of a liquid, or in thin flexible sheets which may be wetted and applied while wet.  The treating liquid may be applied to and dried on to a thin support of viscose which may be cut to the desired size, wetted and applied to the glass, and alcohol may be added to the mixture to enable it to permeate the film and to assist drying.  These flexible films may be used for advertising or pictorial display on glass and for labelling bottles, and for these purposes are printed, and the side with the printed matter applied to the rear surface of the glass.  The print or pictorial matter may be applied to a separate portion of transparent flexible support or direct to the glass and then backed by the treated film which protects it and holds it in place.
Patent GB-549606-A (GB)
Title: The concentration of aliphatic acids
IPC: C08B3/28
Filed: 1941-05-26
Abstract: 549,606. Cellulose esters ; aliphatic acids. DREYFUS, H., and GROOMBRIDGE, W. H. May 26, 1941, No. 6712. [Classes 2 (ii) and 2 (iii)] In the treatment of organic acid solutions of cellulose esters such as acetate or propionate in the corresponding acid, the ester is precipitated by an aqueous solution of a metal salt containing some acetic or other lower aliphatic acid, and part only of the acid in the resulting dilute solution is extracted with an organic solvent, the residual liquor being used for precipitating more cellulose ester. When the cellulose ester solution contains an acid catalyst such as sulphuric acid, the metal salt may be made by adding an alkali metal hydroxide, carbonate or acetate. Suitable solvents for extracting the acid are di-ethyl, dipropyl and di-isopropyl ethers, ethyl acetate, -methylene and ethylene chlorides and mixtures such as ethyl acetate and benzene or petroleum ether and di-ethyl ether as described in Specification 283,702, [Class 2 (iii)], also amyl acetate. Instead of alkali metal sulphates, other sulphates such as zinc and magnesium sulphates may be used ; and if phosphoric acid is employed as catalyst in the production of the cellulose ester a phosphate such as sodium phosphate may be used as the salt.
Patent GB-641354-A (GB)
Title: Apparatus for automatically controlling temperatures
Inventor: SMITH ELMORE STANLEY
IPC: H01H37/56
Filed: 1947-03-11
Abstract: 641,354. Automatic temperature control systems; switching systems for heating resistances. MOFFATS, Ltd. March 11, 1947, No. 6781. [Class 38 (iv)] [Also in Group XXXVII] The Specification describes a system as set forth in Specification 641,353 for maintaining the temperature of an oven at one of a plurality of predetermined values, the claims relating particularly to the " booster " control system described with reference to Figs. 13 to 22 of that Specification.
Patent GB-253199-A (GB)
Title: Improvements in and relating to the moulding of elastic masses
Filed: 1925-03-12
Abstract: 253,199. Miller, G. C. H. March 12, 1925. Fats and fatty oils are vulcanized under high pressure in a rigid mould which is filled completely. To avoid occlusion of air, the material are introduced into a closed vessel so as to displace the air therefrom and after agitation are discharged, into the mould; the vessel may be provided with a floating closure. The re-action may be reduced or retarded by the addition of camphor, high boiling-point hydrocarbons, sulphur, or bases such as magnesia. Pressures of 5000-6000 1bs. per sq. inch are employed, and the mould is lubricated e.g. with paraffin wax. The following compositions for the production of printing ink rollers are described. (1) 15 parts by weight of arachis oil are mixed with 3 parts of castor oil and 2 of magnesium oxide, and 2 parts of sulphur chloride are added to the mixture and the whole thoroughly mixed. (2) Arachis oil 450 ccs., castor oil 120 grams, magnesium oxide 80 grams, carbon black 1 gram, turkey red oxide 1¢ grams, and sulphur chloride 60 ccs. (3) Castor oil 160 ccs., blown rape oil 60 ccs., tea seed or olive, oil 220 ccs., magnesium oxide 80 grams, carbon black 1 gram, turkey red oxide 1¢ grams, and sulphur chloride 40 ccs.
Patent GB-941182-A (GB)
Title: Improvements in apparatus adapted to distinguish between the presence of flame due to combustion of fuel discharged from a burner and the absence of the flame
Inventor: CLEALL ALFRED FRANK
IPC: F23D5/16
Filed: 1959-02-27
Abstract: 941,182. Photo-electric flame detectors. BABCOCK & WILCOX Ltd. Feb. 23,1960 [Feb. 27, 1959], No. 6860/59. Heading G1A. [Also in Division F4] An apparatus which distinguishes between the presence of a flame due to combustion of liquid fuel at a first burner and the absence of that flame in the presence of flame from one or more adjacent burners comprises means for modulating the flame at the first burner with a predetermined frequency and radiation detecting means which is responsive to the modulated radiation. A transducer 4 is fed with the output of a signal generator 2 which is modulated by unit 30. The modulated signals are applied to the burner barrel 8 and transmitted to the burner head 10, thereby modulating at least the infra-red portion of the flame. The burner barrel is stepped at 12 to increase the amplitude of the vibrations passed to the burner head. A photo-cell 32 feeds to an amplifier 34 tuned to the frequency of the signal generator 2, and this in turn feeds a detector and amplifier 36, this amplifier being tuned to the modulation frequency. A relay 38, when energized operates an alarm and shuts off the fuel supply to the burner. Adjacent fuel burners are modulated at different frequencies and are associated with separate photo-cells and tuned circuits. Specification 941,181 is referred to.
Patent GB-429794-A (GB)
Title: Improvements in and relating to milk coolers
IPC: F25D31/00
Filed: 1934-03-03
Abstract: 429,794. Filling churns. WATSON, H., Barnchalloch, Stranraer, Wigtownshire. March 3, 1934, No. 6862. [Class 125 (ii)] [See also Group XIII] To facilitate the filling of churns with cooled milk, the cooler is provided with a tiltable discharge trough having brackets m for the attachment of a float l and outlets i, j on opposite sides thereof. The float is attached to the bracket on one side of the trough to depend in a churn to be filled, and, as the milk level rises, tilts the trough to discharge the milk into an adjacent empty churn. Thereupon the float is detached and suspended from the opposite side of the trough to depend in the second churn.
Patent GB-1169569-A (GB)
Title: Improvements relating to Polyimide Moulding Powders
IPC: C07D205/10
Filed: 1967-02-14
Abstract: 1,169,569. Polyimide. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Feb., 1967 [15 Feb., 1966], No. 6930/67. Heading C3R. A polyimide moulding powder comprises an imide-group-containing precondensate of a diamine with a tetracarboxylic acid (or an anhydride or ester thereof) and a substance capable of reacting with the reactive groups of the precondensate to form imide groups; the latter contains at least two functional groups and the composition of the mixture is such that approximately one amino-group is available for each anhydride group or each pair of carboxyl, alkoxide or aryloxide groups. The precondensate may be obtained by reacting a diamine and a tetracarboxylic acid in a molar ratio of 2: 1 or 1: 2 so as to obtain a precondensate having either (1) an excess of amine, or (2) an excess of carboxyl groups. A moulding powder may be prepared from a mixture of such prepolymers (1) and (2) which when reacted together form a polyimide. Alternatively prepolymer (1) may be reacted with a tetracarboxylic compound and prepolymer (2) with a diamine. In examples precondensates are prepared from pyromellitic dianhydride and 4,4<SP>1</SP>- diaminodiphenyl ether in both a 2: 1 and 1: 2 molar ratios. Moulding powders may be prepared (1) from a mixture of the two precondensates; (2) by reacting the anhydride containing precondensates with melamine, urea or benzoguanamine; and (3) by reacting the amino containing precondensate with benzophenonetetracarboxylic acid. Conventional fillers may be present.
Patent GB-138211-A (GB)
Title: Method of obtaining pure tungstates
IPC: C01G41/00
Filed: 1919-03-20
Abstract: In the process for purifying tungstate solutions described in Specification 122,264, the oxidizing-agent and ammonia are added to the tungstate solution after the addition of the salt of an alkaline-earth metal.  The contaminating phosphorus and arsenic compounds are precipitated as a gelatinous mass of ammonium alkaline-earth metal phosphate and arsenate respectively.  In order to recover the adhering tungstate, the precipitate is dried and, after mixing with tungsten ore, is treated as described in Specification 122,051.
Patent GB-151301-A (GB)
Title: Improvements in or relating to conduit and tunnel segments and the like
IPC: E21D11/04
Filed: 1919-03-20
Abstract: 151,301. Fenton, E., and Wright, W. H. March 20, 1919. Tunnels.-Lining segments for conduits, tunnels &c. are formed by placing bricks c in a mould and casting a metal frame about them so that they are securely held. Recesses d, h are left for the passage of connecting bolts. Flanges f, g, a of the casting may be overhung. Sand may he placed between courses of bricks and permitted to run out after the metal has set, but before it has cooled, to allow for contraction. To protect them from heat, the backs of the bricks may be dipped in graphite or silica paste &c., or a thin steel sheet may be placed over them before casting. The Provisional Specification states also that strips of asbestos may be placed between courses of bricks to allow for contraction.
Patent GB-1013368-A (GB)
Title: Method of giving a smooth finish to solder in a plastic state
IPC: B23K35/26
Filed: 1964-02-20
Abstract: A solder contains 2.5-2.75% tin, 4.9-5.4% antimony, 0.25% bismuth and remainder lead.
Patent GB-836487-A (GB)
Title: Improvements in and relating to stacking chairs
IPC: A47C1/124
Filed: 1958-03-05
Abstract: 836,487. Chairs. BIDDULPH INDUSTRIES Ltd., BIDDULPH, C. L., and REASON, N. P. Aug. 25, 1958 [March 5, 1958], No. 7084/58. Class 52(2) Stackable chairs are constructed from detachable parts comprising end frames 6 constituted by back supports 8 integral with a rear leg to which are fixed L- shaped members 10 forming the front leg and seat rail and floor rails 12 connecting the lower ends of the legs, horizontal sockets 9, 11 on the end frames accommodate bars or tubes 13, 14 to hold the frames in spaced relation and similarly constructed intermediate frames 7 may be incorporated to form a row of seats. Locking means and detachable distance pieces as in Specification 836,486 may be provided for coupling adjacent rows in lateral and front to back relation.
Patent GB-140209-A (GB)
Title: Improvements in and relating to the fireproofing of fabrics
IPC: D06M11/57
Filed: 1919-03-21
Abstract: A fire-proof adhesive paste for uniting together inner and outer layers of fabric to produce a compound fire-proof fabric consists of aloes, brimstone, and alum, mixed with a carrier such as wheaten flour and water, then boiled, cooled, and finally mixed in equal proportions with silicate of soda or gum arabic.
Patent GB-756039-A (GB)
Title: Improvements in or relating to methods for the electro-chemical treatment of metal electrodes for electrolytic cells and apparatus for carrying out such processes
IPC: H01G9/04
Filed: 1953-03-13
Abstract: 756,039. Electrolytic treatment of electrodes. KILCHLING, K. March 13, 1953 [March 13, 1952; April 21, 1952], No. 7100/53. Drawings to Specification. Class 41. A method of electrochemically preparing metallic electrodes for electrolytic cells comprises electrically connecting an electrode to be prepared, the surface of which is free from a locally insulating layer, with a second metal externally of an aqueous electrolyte in which the electrode and second metal are immersed, the second metal being chosen so that. its position relative to the electrode metal in the displacement series is such that the greater part of the electrolytic preparation takes place by utilization of the self-produced current. The electrode to be prepared may be of aluminium and may be electrically connected to a second electrode of carbon, copper, lead or iron, externally of an electrolyte which may be hydrochloric acid, aluminium chloride, sodium chloride, or a fluoride, to increase the surface area of the aluminium electrode by roughening as it serves as an anode. The self-produced current may be augmented by connecting an external source of current between the electrodes. The electrolyte may be one which also roughens the aluminium by chemical action. The roughened aluminium electrode is then cleaned by being made a cathode by connection to another electrode, such as one of magnesium, in an electrolyte, so that the self-produced current flows in the opposite direction to that in the roughening process. The electrolyte may be water, since substances adhering to the electrode from the roughening process are sufficient for a current to be produced, and may contain glycerin or glycol; the electrolyte may also contain acetic or oxalic acid. An external source of current may also be added to the self-produced current in the cleaning process.
Patent GB-1415784-A (GB)
Title: Vehicle bodies and pallets
IPC: B60P3/035
Filed: 1973-02-14
Abstract: 1415784 Load handling pallets REYNOLDS BOUGHTON Ltd 24 Oct 1973 [14 Feb 1973] 7134/73 Heading B8H [Also in Division B7] A pallet or vehicle body for the transportation of cylindrical objects comprises a rectangular framework 1 with a plurality of pairs of pivotably mounted platforms 2, 3, 4, 5. The platforms of each pair are pivotable about axes equally spaced from the longitudinal axis of the framework and are each supported by a pair of arms 17, 18 pivoted thereto at one end and to an axle 22 at the other end. The axles carry friction pads (27), Fig. 2 (not shown) or wheels (86), Fig. 6 (not shown) which run on tracks extending transversely of the framework and each have a nut (34), Fig. 3 (not shown) for engagement with a threaded rod 39 extending transversely of the platform. The ends of the rods project beyond the sides of the platform for engagement by a key to effect their rotation and the movement of the associated platform between a position coplanar with the framework and an inclined position thereto to support a cylindrical object. Sockets 51, 52 in the framework receive posts (not shown) to secure the objects against movement longitudinally of the framework. The platforms may pivot about axes transverse of the framework. In an embodiment, Fig. 4 (not shown), for use in a freight container the threaded rods (62), (63) to move the platforms are rotatable from an end of the framework through a system of shafts, universal joints and gear-boxes.