baber/WOPTO huggingface dataset:
Patent GB-250928-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J17/04
Filed: 1926-04-06
Abstract: 250,928. Naamlooze Vennootschap Philips' Gloeilampenfabrieken. April 18, 1925, [Convention date]. Vacuum tubes; low - pressure metallic-vapour apparatus. - A tube, particularly for use as an excess voltage protective device, has one or both electrodes consisting partly of a mixture of an alkali compound, such as sodium or potassium chloride, and a substance, such as magnesium, capable of liberating alkali metal from the compound, so that a small quantity of the metal is liberated whenever a discharge is produced. The mixture 11 is contained in a cup-shaped portion of a nickel electrode 10 and is covered by a metal gauze or perforated plate 12. The electrode and the gauze may be partly amalgamated, or a mercury salt may be added to the mixture so as to produce an alkali amalgam, which volatilizes more slowly than alkali metal. The tube may contain argon at a pressure of 2-10 mm. of mercury or neon at a slightly higher pressure.
Patent GB-1094209-A (GB)
Title: Method of, and composition for, controlling scale formation on ferriferus surfaces
IPC: C21D1/70
Filed: 1966-03-02
Abstract: Scale formation on a ferriferrous surface is controlled by applying to the surface an aqueous dispersion comprising (1) at least 5% by weight of a bentonite clay and (2) 0.01-0.2 parts by weight of copper, aluminium or iron or a hydroxide, oxide, carbonate or phosphate thereof per part by weight of the bentonite clay, and then heating the surface to 800-2200 DEG F.  A wetting agent may be present in the dispersion, and may be of the anionic, cationic or non ionic types.  Boric acid may also be present.  The metal surfaces may have a protective coating, e.g. zinc phosphate.ALSO:Scale formation on a ferriferrous surface, which may have a zinc phosphate protective coating, is controlled by applying an aqueous dispersion of at least 5% by weight of bentonite and 0.01 to 0.2 parts by weight of Cu, Al or Fe or a hydroxide, oxide, carbonate or phosphate thereof, and then heating to 800 to 2200 DEG F. Boric acid and a wetting agent may also be present in the dispersion.
Patent GB-948759-A (GB)
Title: Improvements in or relating to arc shutes for electric circuit breakers
Inventor: STOBART LESLIE WALLACE
IPC: H01H9/34
Filed: 1959-03-17
Abstract: 948,759. Arc-rupturing in switches. WHIPP & BOURNE Ltd. March 15, 1960 [March 17, 1959], No. 9113/59. Heading H2B. Each refractory plate of a circuit-breaker arc-chute comprises short and long parallel sides 11, 12 whose ends 14, 16 have portions 13, 15 connected by a side 19, the plate areas defined by sides 11, 13 and 12, 15 being thicker than the remaining part and having ribs 28 and grooves 29 on opposite surfaces. The chute comprises adjacent plates 10, 23 assembled with interengaging ribs and grooves, and having their sides 19 oppositely inclined to form a V-shaped slot, each side 11 being aligned with a spacer 30 of similar thickness and design and the members 10, 23, 30 being bonded together by an air-drying cement. If desired, the sides 12 may be progressively or suddenly shortened to alter the shape of the chute and the V-shaped slot, Figs. 5, 6, 7 (not shown).
Patent GB-1059752-A (GB)
Title: Control for electric coupling apparatus
IPC: H02P29/00
Filed: 1965-03-03
Abstract: 1,059,752. Automatic speed control. EATON YALE & TOWNE Inc. March 3, 1965 [March 5, 1964], No.9141/65. Heading G3R. In a control system for a coupling having field coil FC, interrupter CI is driven by the output shaft to develop square-wave voltage pulses across resistor 47, the pulse-frequency being proportional to shaft-speed. A network 47, 49, differentiates the square wave, and a diode 51 clips the positive-going peaks. The triangular pulses so formed are integrated by network 53, 55, 57, to form a pulsating D. C. signal whose average potential level is proportional to shaft-speed. This signal is applied to transistor T1 in parallel opposition to a D. C. reference voltage derived from potentiometer 39. A power transistor T2 acts in push-pull relationship with the transistor T1 to control the average power supplied to the coil FC. A positive feedback path is provided from the collector of transistor T2 to the base of transistor T1. In another arrangement, a differential transistor amplifier is connected between the integrating network and the control element of transistor T1, the output of this amplifier being a function of the deviation between the actual and desired speeds of the shaft. The pulsating D. C. signal and the reference signal may be derived from a common source so that load-induced voltage changes are compensated for.
Patent GB-849186-A (GB)
Title: Improvements in or relating to aluminum-iron alloys
IPC: C22C33/04
Filed: 1959-03-17
Abstract: Alloys of iron containing substantial amounts of aluminium, particularly 6 to 18%, are prepared by establishing in a ferrous container a bath of completely deoxidized and de-hydrogenated aluminium.  This container is placed within a suitable container such as a ladle, and a stream of molten iron which has previously been thoroughly de-oxidized is poured on to the molten aluminium, p alloying with the latter as it descends through it and puncturing the container, which subsequently dissolves in the alloy.
Patent GB-499386-A (GB)
Title: Treatment of textiles
IPC: D06M13/322
Filed: 1937-03-31
Abstract: Comprises the subject-matter of Specifications 492,699, 493,067, 494,761, and 494,833, and also the following: the use, for waterproofing &c. of chloromethyl compounds derived from higher mercaptans, oxyamines, alkylamines or methylol compounds thereof and amidines, also of sterol derivatives; also further examples of (a) preparation of chloromethyl ethers from (17) octadecanamidoxime, (21) octadecancyanhydrin and (31) heptadecylaminoethanol, by treatment with dry hydrochloric acid gas in the presence of trioxymethylene; (b) waterproofing treatment of fabrics and fibres by the use of (1) octadecoxymethylpyridinium chloride, (2) decosoxymethylpyridinium chloride, (3) trimethyloctadecoxymethylammonium chloride, (14) as in (1) with addition of sodium acetate and (18) the quaternary pyridinium salt of (17); (c) combined waterproofing and creaseproofing with the use of baths containing dimethylolurea and (23) stearoxymethyltriethylammonium chloride and (24) the quaternary pyridinium salt of the chloroimino ether obtained by the reaction of octadecannitrile, trioxymethylene and hydrochloric acid; (d) addition to viscose spinning solutions of (26) the triethylamine, and (27) the trimethylamine salts of octadecylchloromethyl ether, (29) the triethylamine salt of the chloroimino ether of (24), (30) the trimethylamine salt of the chloromethyl ether of dodecancyanhydrin and (32) the trimethylamine salt of (31), and (e) animalizing cellulosic fibres, for dyeing with acid dyestuffs, by treatment with higher alkyl chloromethyl ethers containing, in the alkyl radicle, basic nitrogen, e.g, spun rayon fibres by the chloromethylimino ether from stearonitrile, trioxymethylene and hydrochloric acid or by the pyridinium salt of (21), and as an addition to viscose spinning solutions as in (29), (30), and (32).
Patent GB-304953-A (GB)
Title: Improvements in and relating to tilting mechanism for tipping wagons and the like
IPC: B60P1/10
Filed: 1928-03-27
Abstract: 304,953. Barnett, W., and Florendine, J. March 27, 1928. Tipping vehicles. -In tipping wagons and the like the tipping screw is provided with a universal joint at its base where it is connected to the operating mechanism and an oscillating bearing pivoted to the body to be tipped and carrying a pivoted nut. As shown in Fig. 2 the screw G is provided at one end with a spherical spigot F seated in, and in driving connection by means of balls F<1> and groove E', a spherical seating i formed in a socket D' forming part of a bevel wheel D. The wheel D and socket D' are mounted in a yoke B pivoted on the operating shaft A. In another form the yoke B, Fig. 3, is rigidly mounted on the frame and the stem D<2>x is provided with a yoke K in which trunnions L on a cross piece L<1> are adapted to rock. The screw G is pivoted transversely to the piece L<1>. The nut H, Fig. 2, is provided with trunnions adapted to rock in bearings H<2> on a plate H<3>. The plate H<3> is adapted to pivot about the stem H<4> carried by a plate H<5> secured to the body of the vehicle.
Patent GB-198504-A (GB)
Title: A new or improved connector or coupling for electric cables
IPC: H01R4/02
Filed: 1922-03-31
Abstract: 198,504. Greenhalgh, J. March 31, 1922. Coupling.-Stranded wire cables to be coupled together have their outer strands opened and ferrule d passed over their ends. The next inner layer is laid back over the ferrule and the shortened outer strands e, are laid upon the ferrule also. Each prepared cable end is next inserted into a sleeve a and secured in place by screws i or pins d. Solder may be run into the joint through holes j. The cable ends may abut as shown or a partition may be left in the centre of the sleeve a.
Patent GB-983992-A (GB)
Title: Process for preparing 2-chloro-3,5-dialkoxy-phenols
IPC: C07C/
Filed: 1962-03-09
Abstract: 2 - chloro - 3,5 - dialkoxy - phenols are prepared by heating the corresponding 3,5 - dialkoxy - phenols with N - chlorosuccinimide, preferably in an inert solvent and at temperatures in the range of 35 to 75 DEG  C. Preferred 3,5-dialkoxy-phenols are those containing low molecular weight alkoxy radicals, especially methoxy, ethoxy or propoxy radicals. The preferred inert solvent is carbon tetrachloride. The crude product obtained from the reaction contains small quantities (1-4%) of the isomeric 4-chloro-compounds, and this is removed during the purification of the product by vacuum distillation. Two examples are given, illustrating the preparation of 2-chloro-3,5-dimethoxy-phenol and 2-chloro-3,5-diethoxyphenol.
Patent GB-590131-A (GB)
Title: Improvements in and relating to the manufacture of amidines
IPC: C07D295/195
Filed: 1945-04-13
Abstract: Amidines, or salts thereof, wherein one or more of the hydrogen atoms attached to the nitrogen atoms of the amidine group are substituted by an alkyl, aralkyl, aryl or heterocyclic group, are obtained by heating an acyl sulphonamide of general formula XCO.NR.SO2.Y, where X.CO represents a carboxylic acid residue, Y.SO2 is an organic sulphonic acid residue and R is an alkyl, aralkyl, aryl or heterocyclic group, with a salt of ammonia or an amine which is not decomposed under the conditions of reaction, e.g. a hydrochloride, sulphate or benzenesulphonate; such amine salts are those of amines of the type NH.R1R2, wherein R1 represents H, or an alkyl, aralkyl, aryl or heterocyclic group and R2 represents an alkyl, aralkyl or aryl group, or R1, R2 together form the two ends of an alkylene chain.  The acyl sulphonamides used as starting materials are obtained by acylating an N-alkyl, -aralkyl, -aryl or -heterocyclic sulphonamide.  In examples, substituted amidines or salts thereof are obtained by heating together the reactants.  Numerous examples are given.  N-Acetylbenzenesulphonmethylamide is prepared by refluxing acetyl chloride with benzenesulphonmethylamide in dry pyridine. N-Benzoylbenzenesulphonmethylamide and N-benzoyltoluene-p-sulphonethylamide are prepared by refluxing benzenesulphonmethylamide or toluene - p - sulphonethylamide with benzoyl chloride and dry pyridine. N-Benzoyl-2-benzenesulphonamidopyridine is obtained by treating 2-benzenesulphonamidopyridine in methanolic potassium hydroxide with isopropyl alcohol, suspending the resultant dried potassium salt of 2-benzenesulphonamidopyridine in benzene, adding benzoyl chloride and heating under reflux.
Patent GB-181162-A (GB)
Title: Improvements in wrenches
IPC: B25B13/22
Filed: 1921-03-29
Abstract: 181,162. Roach, W. H. March 29, 1921. Sliding-jaw wrenches. -The sliding jaw 3 of a wrench is locked in adjusted position by a toothed block 10 loosely pivoted by means of a pin 12 in a recess in the jaw 3 and provided with a toothed and bevelled side 11 forced into engagement with teeth 7 and released by pressing a projection 14. Plain surfaces 8, 9 adjacent to the teeth 7 form bearing-surfaces for the sliding jaw.
Patent GB-316330-A (GB)
Title: An improved electrolytic condenser
IPC: H01G9/022
Filed: 1928-03-28
Abstract: 316,330. Andrewes, H., Macdonald, D. M., and Dubilier Condenser Co. (1925), Ltd. March 28, 1928. Electrolytic condensers. -An electrolytic condenser consists of two metal plates in an electrolyte mixed with an inert insoluble salt, oxide or hydroxide. Lead plates may be used and may be coated with finely divided lead and lead peroxide respectively. The plates are immersed in a. paste consisting of sulphuric acid and an alkaline earth sulphate such as calcium sulphate.
Patent GB-136072-A (GB)
Title: Improvements in or relating to Carburetters for Internal-combustion Engines.
Inventor: SMITH JOHN EDWIN
IPC: F02M61/04
Filed: 1919-04-12
Abstract: 136,072. Smith, J. E. April 12, 1919. Spray carburettors. - A sliding throttle-valve e rotates a hollow valve b which has an aperture m to control the mixture, a conical seating q with tapered passage r which registers with the petrol inlet s, and carries on its lower end a suction-actuated air valve o. Air is admitted through openings p, and the tapered passage r communicates with the seat of the air valve by a conduit t. The sliding valve e is prevented from rotating by a key adjustably secured in the casing a, and carries a feather which engages a helical slot in the valve b which is therefore rotated as the valve e slides. The aperture m may register with a port in the casing to admit extra air.
Patent GB-951934-A (GB)
Title: Stabilised mono-ª‡-olefine polymer compositions
Inventor: BURGESS ROBIN HENRY
IPC: C08K5/37
Filed: 1960-03-17
Abstract: The Specification describes a method of stabilization of an olefine polymer using a mixture of a phenolic compound and an organic sulphur compound. The polymer may be a homopolymer of ethylene, propylene, isobutylene, butene-1, 3-methyl-butene-1 or 4-methyl-pentene-1 or an ethylene/propylene copolymer.  The phenolic compound may be a condensation product of a phenol and a saturated aldehyde or ketone, sulphur mono- or dichloride, a di-ketone or dialdehyde or an unsaturated aldehyde. The compound has a boiling point of at least 200 degrees at a pressure of 1 mm. of mercury and at least two phenolic residues in the molecule.  A large number of suitable materials are specified. The sulphur compound has a molecular weight of at least 300 and contains (1) a group or groups having altogether at least two divalent sulphur atoms linked to carbon, sulphur and carbon, carbon and carbon or carbon and hydrogen and (2) at least one divalent group: <FORM:0951934/C3/1> where X and Z are -O-, -S-, or -NR- groups and Y is oxygen or sulphur. The divalent group (2) may link together two carbon atoms in organic groups containing the divalent sulphur atoms (1). There should be 0.1 to 12 hydroxyl groups provided by the composition to each sulphur atom. Specifications 698,463, 789,781, 796,285, 831,828, 859,773, 951,931, 951,932 and 951,935 are referred to.
Patent GB-1179087-A (GB)
Title: Improvements, in or relating to, Internal Combustion Engines
Inventor: FUNICIELLO ANGELO
IPC: F02M1/00
Filed: 1968-02-28
Abstract: 1,179,087. Induction and exhaust passages. A. FUNICIELLO. Feb.28, 1968 [Feb.28, 1967], No.9574/68. Heading F1B. In an I.C. engine a valve-controlled inlet and/or exhaust port of the or each cylinder is common to two ducts 3 and 4 which, adjacent to the port, are located on opposite sides of and are substantially symmetrical with respect to the axis of the port. Each duct at its end adjacent to the port terminates in a substantially helical portion and its crosssection changes from the elliptical, at a distance from the port substantially equal to the length of the valve stem 1, to a Kidney shape, Figs.4 and 5 (not shown) as it approaches the port. The convex portion of the Kidney shape is adjacent the valve stem and is disposed helically along the duct.
Patent GB-1416166-A (GB)
Title: Tuned circuits
IPC: H01P1/203
Filed: 1972-03-01
Abstract: 1416166 Filters ELECTRONIC COMPONENTS Ltd AB 21 Feb 1973 [1 March 1972] 9612/72 Heading H1W Resonant circuits 1 are coupled by a common ground plane 3. The circuits are formed by printing a conductive pattern on one side only of a substrate of, e.g. alumina. The coupling may be adjusted by removing a portion 4 of the common ground plane 3. The removed area 4 may extend to the edge of the substrate.
Patent GB-584937-A (GB)
Title: Improvements in or relating to the control of electric spot welders
IPC: B23K11/24
Filed: 1944-05-19
Abstract: 584,937. Control systems for resistance welding. BATEMAN, J. R. May 19, 1944, No. 9704. [Class 38 (iv)] A welding machine has electromagnetic means 40 to maintain electrode pressure independently of a foot pedal or the like and welding current cannot commence until this means is effective, a relay 42, sensitive to current in coil 40, controlling the welding contactor. To forge the weld, release of the pressure is delayed for a timed period after cessation of welding current, the period of application of which is separately timed. As applied to a control system according to Specification 550,615, a switch 1 is closed when electrode pressure is applied to prepare the circuit of contactor 3, 4. A manual switch 39 energizes the coil 40. These two circuits may be supplied by rectified current from a winding S2 and pass respectively through contacts 6 and 46 of relay 7. After the current in coil 40 has become sufficient to lock the pressure means, relay 42 operates and contactor 4 closes to start welding, whereupon relay 14 actuates its contact 53 and coil 40 becomes independent of relay 7 which after the discharge of the weld timing condenser actuates its contacts 6 and 49 to cause respectively contactor 4 to open and to discharge a condenser 35 through contacts 23 and 51, to maintain energization of relay 14 for a period determined by a variable resistance 43. When relay 14 finally releases, its contact 53 de-energizes coil 40 and electrode pressure is released. A manual switch 41 may be used to release the electrodes and cut off welding current at any time.
Patent GB-705015-A (GB)
Title: Denture
IPC: A61C13/00
Filed: 1952-04-17
Abstract: Dentures of artificial resin are provided with a soft lining by applying thereto a soft, resilient plastic plate or foil, which has been swollen in a monomeric, polymerizable vinyl compound, and polymerizing the swollen compounds by heat and pressure in the presence of a catalyst.  The plates or foils may be copolymers derived from vinyl components which normally yield hard plastics, e.g. methyl methacrylate and at least one other vinyl component which yields soft plastics, e.g. ethyl acrylate, butyl acrylate, hexyl acrylate, octyl acrylate, isobutyl methacrylate, isohexyl methacrylate, octyl methacrylate and n-lauryl methacrylate.  It is advantageous to use foils prepared from cross-linked copolymers such as are obtained by complementary use of polyfunctional vinyl compounds, e.g. divinyl benzene, glycol diacrylate, glycol dimethacrylate, butanediol dimethacrylate and hexanediol dimethacrylate.  The swelling compound is preferably the same monomer or mixture as that used for making the resilient foil but others may be used, examples being methyl methacrylate, ethyl methacrylate, butyl methacrylate, isohexyl methacrylate, methyl acrylate, ethyl acrylate, butyl acrylate and octyl acrylate. Particularly good adhesion with a polymethyl methacrylate denture is obtained by swelling with methyl methacrylate, butyl methacrylate, isobutyl methacrylate, isohexyl methacrylate and mixtures of methyl methacrylate and acrylates containing more than 50 per cent. methyl methacrylate.  Polymerization catalysts may be dissolved in the swelling compound or a second foil, superficially impregnated with the catalyst, may be placed over the plate or foil to be swollen. Suitable catalysts include benzoyl peroxide, p-chlorobenzoyl peroxide and cumene hydroperoxide.  Known redox systems, such as those using trihexyl amine or p-toluene sulphinic acid are also suitable, and in this case it is advantageous to incorporate the oxidation agent in the plate and the reducing agent in the swelling monomer.ALSO:Dentures of artificial resin are provided with a soft lining by applying thereto a soft, resilient plastic plate, which has been swelled in a monomeric polymerizable vinyl compound, and polymerizing the swelled compounds by applying heat and pressure in the presence of a catalyst.  Various examples of suitable materials are given (see Group IV(a)).
Patent GB-1180824-A (GB)
Title: Photographic Recording Apparatus.
IPC: H04N5/257
Filed: 1967-03-01
Abstract: 1,180,824. Cathode-ray tube circuits. XEROX CORP. 1 March, 1967 [7 March, 1966], No. 9803/67. Heading H4T. [Also in Division G2] In photographing a document 2 of which selected parts only are required for reproduction, the unwanted parts are blanked out by a flying spot cathode-ray tube scanner, so that the blanked out parts are over-exposed and do not reproduce on the final photograph. It is assumed, by way of example, that the document comprises a picture 12 and text 11, and that the picture is to be blanked out, leaving the text only to be reproduced. As shown, ramp waveforms 120 and 122 are similar in shape to the horizontal and vertical deflection waveforms respectively applied to the cathode-ray tube. Two points H1 and H2 represent two values of voltage amplitude on waveform 120, and V1 and V2 two similar values on waveform 122. These points can be set by potentiometer controls H1, H2 in the masking control circuit 30, Fig. 4, and points V1 and V2 similarly set. These adjustments cause the horizontal input diodes DH1 and DH2 in an AND gate 34 to be non-conductive during the period of deflection amplitude between points H1 and H2 on waveform 120, and similarly for diodes DV1, DV2. Thus an illumination pattern corresponding to the picture area 12 is superimposed on the document, blanking out that area and leaving only the remaining area 11 to be recorded.
Patent GB-1377955-A (GB)
Title: Anti-adhesive coatings on siliceous materials
IPC: C03C17/38
Filed: 1972-03-13
Abstract: 1377955 Antiadhesive-coated siliceous materials JENAER GLASWERK SCHOTT & GEN VEB 13 March 1972 [19 April 1971] 9824/71 Heading B2E  A siliceous base material is provided, for example by flame spraying, with an intermediate, sintered rough, porous prime coat, of metal and/or metal oxide particles, the intermediate coating bearing an anti-adhesive coating. Preferably the base material is a household cookery utensil. The anti-adhesive coating is preferably formed by spraying, then drying and sintering, a dispersion of P.T.F.E.
Patent GB-1533099-A (GB)
Title: Method for producing a lithium tantalate single crystal
IPC: H01L41/22
Filed: 1977-03-09
Abstract: 1533099 Lithium tantalate single crystals TOKYO SHIBAURA ELECTRIC CO Ltd 9 March 1977 [17 March 1976] 9863/77 Heading B1S [Also in Division C1] A lithium tantalate single crystal is drawn from a melt of lithium tantalate contained in a crucible made of 80-60% Pt-20-40% Rh by crystal pulling. The crystal may be grown by a pulling up, pulling down or lateral pulling method, especially the Czochralski, Kyropoulos or edge defined film fed growth methods. The crystal formed contains 70-700 ppm of Rh and exhibits a dislocation density of less than 5 x 10<SP>2</SP> lines/cm<SP>2</SP>. The temperature coefficient of the crystal to the propagation velocity of a surface wave is reduced from about 22 ppm for a substrate at an angle of 90 to the X-axis to 18 ppm and thus finds use as a frequency filter for colour television receivers.
Patent GB-191104946-A (GB)
IPC: B65D55/10
Abstract: 4946. Burdekin, W., Smart, J., Brown, M. S., and Ashcroft, J. Feb. 28. Bottles, non-refillable. -A porcelain stopper E is locked in a bottle neck by a rubber-covered spring K which snaps into recesses C, D. On breaking the parts C, D, the spring can be removed and the stopper withdrawn. Breakage of the parts C, D does not spoil the bottle.