baber/WOPTO huggingface dataset:
Patent GB-1151917-A (GB)
Title: Process for preparing Olefinic Polymers having High Crystallinity
IPC: C08F10/00
Filed: 1966-08-23
Abstract: 1,151,917. Polymerizing olefins. MITSUI PETROCHEMICAL INDUSTRIES Ltd. 23 Aug., 1966 [27 Aug., 1965; 21 Dec., 1965; 24 Dec., 1965 (3)], No. 37798/66. Heading C3P. Highly crystalline polymers and copolymers of a-olefins, other than ethylene alone, are prepared by polymerization in the presence of a catalyst formed by mixing (1) at least one halide of a Group IV or V transition metal in less than its maximum valency, (2) RAlX 2  where R is hydrogen, alkyl or aryl and X is halogen and (3) M 2 M<SP>1</SP>F 6  where M is a Group IA metal and M<SP>1</SP> is a Group IV metal or silicon. Specified olefins are ethylene, propylene, butene- 1, 3 - methylbutene - 1, 3 - methylhexene - 1, 4-methylpentene-1, 5-methylhexene-1 and styrene. The catalyst may be formed from titanium or vanadium trichlorides or complexes thereof, e.g. those obtained by reducing the tetrachlorides with hydrogen, aluminium or silicon, or with an organometallic compound of a metal of Groups I to IV. Preferred aluminium compounds are those in which X is chlorine, bromine or iodine, and R is C 1-7  alkyl, phenyl, tolyl or hydrogen. The complex fluoride may be derived from potassium, sodium or lithium, and titanium, silicon, tin or zirconium. Many catalyst components are specified and methods of mixing them are described. The catalysts are preferably aged in an inert atmosphere. Polymerization may be effected in an inert diluent, e.g. heptane or kerosene, in the presence of chain transfer agents, e.g. hydrogen and alkyl halides. Many examples are given illustrating the preparation of polymers of propylene, butene-1, 4-methylpentene-1, 3-methylbutene-1 and 5-methylhexene-1, and random and block copolymers of propylene and ethylene or 4- methylpentene-1, using catalysts formed from titanium trichloride, titanium tribromide or vanadium trichloride or complexes thereof; ethyl aluminium dichloride, propyl aluminium dibromide, isopropyl aluminium dichloride, phenyl aluminium dichloride, isopropyl aluminium dibromide or butyl aluminium dichloride; and lithium, sodium or potassium titanium fluorides, sodium or potassium silicon fluorides, sodium or potassium zirconium fluorides, or lithium, sodium or potassium tin fluorides.
Patent GB-375256-A (GB)
Title: Improvements in and relating to vapour electric discharge tubes
IPC: H01J61/18
Filed: 1930-12-15
Abstract: 375,256. Discharge apparatus. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl Ufer, Berlin.) Dec. 15, 1930, No. 37802. Convention date, Dec. 14, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] A gas filled incandescent cathode discharge tube, for example a rectifier, operating with high currents and voltages has a filling of cadmium vapour. The tube may be heated up to ignition temperature before and also during the discharge. The cutting out of the heating means and the ignition and extinction of the discharge can be effected by thermal relays or other means dependent upon the temperature of the tube.
Patent GB-1443733-A (GB)
Title: Waffles
IPC: A21D2/18
Filed: 1973-08-10
Abstract: 1443733 Waffles S SALZA 10 Aug 1973 [18 Aug 1972] 38001/73 Heading A2B Waffles are made by forming a homogeneous mixture of starch (e.g. potato starch) in water, stabilizing the mixture by adding a homogeneous mixture of gelatinised starch, and baking the resulting batter. In a preferred example 0.8 to 1.0 parts of starch per part of water are used, and 0.5 to 1.0% by wt. of the starch is heated at 80 to 85C with 8 to 15% of the water to gelatinise it. This is then added to the remainder of the starch and water which have previously been stirred to form a homogeneous mixture, and the resulting batter is baked. Chemical leavening, flavourings, powdered milk and seed oil may be added before the stabiliser.
Patent GB-628617-A (GB)
Title: Improvements relating to electric discharge devices
IPC: H01J19/46
Filed: 1946-12-30
Abstract: 628,617. Spark-gaps. SYLVANIA ELECTRIC PRODUCTS, Inc. Dec. 30, 1946, No. 38009. Convention date, Dec. 29, 1945. [Class 39 (i)] In the manufacture of an electric discharge device, the electrodes are spaced by means of conducting elements secured in this position and the spacers subsequently melted and/or vaporized by passing an electric current through them. In the figure, a small spark-gap has electrodes 3, 4 spaced by a wire 9 which may be of tungsten coated with getter material or of the getter material itself. The lead-in wires 1, 5 carry soldered aligning spacers 16, 17 as well as the wafer header 2, the whole being drawn into a tapered tube which is collapsed and sealed on to the lead-in wires. As the glass is fused, the spacers, if flexible, are stretched to their full extent and the whole cooled in that position. A voltage sufficient to melt and vaporize at least a part of the spacer wire is passed, the heating also ensuring gettering. In a modification three spacers and corresponding pairs of brackets are used.
Patent GB-826689-A (GB)
Title: New phthalocyanine dyestuffs
Inventor: POOLE VICTOR DAVID
IPC: D06P1/384
Filed: 1956-12-14
Abstract: The invention comprises copper phthalocyanine dyestuffs containing attached to the benzrings of the phthalocyanine nucleus at least one sulphonic acid group and at least one grouping of the formula -SO2-R, where R is a grouping of the formula -NHCH2CH,Cl, -NHCH2CH2Br, or -NHCH2CH2OSO3H or derivatives thereof wherein the methylene groups may be substituted by methyl or ethyl groups. The dyestuffs are made by interacting an aqueous suspension of a copper phthalocyanine poly-sulphonchloride, which may or may not contain sulphonic acid groups, with at least one molecular proportion of an amine of the formula NH2CH2.CH2X, where X is chlorine, bromine or sulphato and the methylene groups may be substituted by methyl or ethyl, and if necessary hydrolysing unreacted sulphonchloride groups so that the dyestuff contains at least one sulphonic acid group attached to the phthalocyanine nucleus.  The dyestuffs are also made by treating with a sulphating agent copper phthalocyanine having at least one sulphonic acid group and at least one sulphon - beta - hydroxyalkylamie group attached to the phthalocyanino nucleus.  The copper phthalocyanine poly-sulphonchlorides may be made by reacting copper phthalocyanine or sulphonic acids thereof with chlorosulphonic acid or, if sulphonic acid groups are to be absent, with chlorosulphonic acid in the presence of thionyl chloride, sulphonyl chloride, or phosphorus pentachloride, oxychloride or trichloride. Examples are given.  The dyes give greenish-blue shades and are applied to cellulosic textile materials such as cotton, linen and viscose rayon in conjunction with a prior, simultaneous or subsequent treatment with acid binding agents such as caustic soda or potash, sodium carbonate or bicarbonate, trisodium phosphate or sodium metasilicate.  The dyebath may contain adjuvants such as sodium chloride, sulphate or alginate, urea and water-soluble alkyl ethers of cellulose.  The printing pastes may contain adjuvants such as urea and thickening agents such as methyl cellulose, starch, locust bean gum or sodium alginate.  The dyestuffs also colour natural proteins such as wool, silk and leather and synthetic polyamides and polyacrylonitriles from weakly alkaline, neutral or acid solution. Wool is dyed preferably in presence of a cationic surfaceactive agent such as stearamido-methyl pyridinium chloride, cetyl pyridinium bromide or cetyl trimethylammonium bromide and a non-ionic surface active agent such as the polycondensation products of ethylene oxide with fatty alcohols, alkyl phenols and long chain alkylamines. Printing pastes are described (a) for cellulose textiles and silk containing dyestuff, urea, aqueous sodium alginate and sodium bicarbonate; (b) for chlorinated wool fabric containing dyestuff, urea, and aqueous sodium alginate; (c) for polyacrylonitrile containing dyestuff, urea, gum tragacanth and ammonium sulphate; and (d) for nylon containing dyestuff, thiourea, gum tragacanth and ammonium oxalate.
Patent GB-817745-A (GB)
Title: 2-thiohydantoins
Inventor: CARRINGTON HERBERT CLARE
IPC: C07D233/84
Filed: 1956-12-14
Abstract: The invention comprises 2-thiohydantoins of the formula <FORM:0817745/IV (b)/1> wherein R1 and R2 are each alkyl groups or together form with the adjacent carbon atom a polymethylene ring, and R3 is a phenyl group which may be substituted by alkyl groups or halogen atoms, and the manufacture thereof by partial desulphurization of the corresponding dithiohydantoins:- <FORM:0817745/IV (b)/2> by interaction either with ammonia or with a primary amino-compound, in an aqueous medium followed by hydrolysis of the product so formed in an acid medium.  The invention also comprises the manufacture of 5 : 5-dimethyl - 1 - phenyl - 2 - thiohydantoin by heating alpha-anilino isobutyronitrile with thiocyanic acid or a salt thereof, such as the sodium, potassium or ammonium salt, in the presence of acetic anhydride.  In an example, 5 : 5-dimethyl - 1 - phenyl - 2 : 4 - dithiohydantoin is reacted with 2-aminoethanol in water to form 4 - (beta - hydroxyethylimino) - 5 : 5 - dimethyl - 1-phenyl-2-thiohydantoin which is then hydrolysed by hydrochloric acid to give 5 : 5-dimethyl - 1 - phenyl - 2 - thiohydantoin.  Similarly are prepared compounds of formula (I) wherein R1 and R2 are each ethyl, methyl and ethyl, or methyl and isobutyl, or together pentamethylene, and R3 is phenyl, and wherein R1 and R2 are each methyl and R3 is p-tolyl or m- or p-chlorophenyl, the corresponding 4-(betahydroxyethylimino)-compounds being isolated. (In the hydrolysis step to form the 2-thiohydantoins where R3 is phenyl and R1 and R2 are methyl and ethyl, and methyl and isobutyl, the hydrochloride salts of the ethylimino compounds are also isolated.)  Another example describes the preparation of the 5 : 5-dimethyl-1-phenyl-2-thiohydantoin by reacting alphaanilino-isobutyronitrile with ammonium thiocyanate in acetic anhydride.  Dithiohydantoins of formula (II) are prepared by reacting the corresponding hydantoins: <FORM:0817745/IV (b)/3> with phosphorus pentasulphide, in an inert solvent, such as tetrahydronaphthalene, whilst hydantoins of formula (III) are prepared by reacting a substituted aminoacid derivative of the formula R1R2C(NHR3)X, wherein X is a carboxy group or a functional derivative or precursor thereof, particularly a cyano group, with cyanic acid, followed, if necessary, as, for example when X is a cyano group, by hydrolysis with an acid such as hydrochloric acid. Alpha-anilino-alpha-isobutyl-propionitrile is prepared from isobutyl methyl ketone, aniline sodium cyanide and glacial acetic acid, whilst similarly are prepared alpha-p- and m-chloranilino-isobutyronitriles.
Patent GB-910611-A (GB)
Title: Combustion of spent oxide
Inventor: GILLIES ALEXANDER
IPC: C01G49/06
Filed: 1957-12-10
Abstract: <PICT:0910611/III/1> The combustion of spent oxide is carried out in a furnace at a temperature in the range 590 DEG  to 800 DEG C.  In operation spent oxide, e.g. iron oxide which has been used to absorb H2S and S from coal gas streams is heated in an elongated chamber preferably a rotary kiln provided with inlet means for supply of spent oxide and air or free oxygen containing gas and outlet means for removal of iron oxide product and combustion gases, e.g. oxides of sulphur.  The temperature of the combustion may be controlled by the recycle of the combustion gases or preferably by regulation of the air supply to the kiln.  In the figure spent oxide is introduced by means of a feed pipe 13 into an inclined cylindrical rotary kiln 1 supported on rollers 2.  Box lifters 3 serve to agitate the spent oxide as it passes through the kiln up to that part of the kiln adjacent the gas outlet 4 which is connected through sealing means 5 with stationary pipe 6 which conveys combustion gases away from the plant.  Suction is applied to pipe 6 to obtain a positive flow of combustion gases over the spent oxide which is discharged through orifice 7 at the lower end of the kiln into collector 9.  Orifice 7 is covered by flap 8 the position which is controlled by wheel 10 engaging on rail 11 so that it is only open when orifice 7 is directly above collector 9. The iron oxide product may be reused for the catalytic removal of S or H2S from coal gases.  Specification 677,614 is referred to.
Patent GB-1200446-A (GB)
Title: Method of treating cellulosic textile materials
Inventor: JONES BRIAN WICKETT
IPC: D06M15/423
Filed: 1966-08-26
Abstract: 1,200,446. Crease proofing cellulosic materials. ENGLISH SEWING Ltd. 23 Nov., 1967 [26 Aug., 1966], No. 38355/66. Heading D1P. Textile material containing at least 50% by weight of natural or regenerated cellulose fibres, e.g. cotton, linen, viscose rayon or polynosics, is crease proofed by impregnating it with an aqueous mixture capable of forming a nitrogen containing resin together with a catalyst which under the conditions of treatment liberates an acid e.g. magnesium dihydrogen phosphate, zinc nitrate, or ammonium chloride or dihydrogen phosphate which may be used in admixture with formaldehyde, drying it so that it contains 4-25% by weight of moisture calculated on the dry weight of the material, allowing it to stand under such conditions that it retains moisture between the limits of 4-25% by weight calculated on the dry weight of the material and so that resin formation takes place, and then drying it. The nitrogen-containing resin is a polymeric thermo-hardening resin, e.g. a reaction product of formaldehyde with urea or melamine, or a reactive resin which reacts chemically with the treated cellulose to form direct links or cross links, e.g. a methylol derivative of cyclic ethylene urea, cyclic propylene urea, cyclic dihydroxy ethylene urea, a triazone, a cyclic urea or a carbamate. After adjusting the impregnated material to the desired moisture content it may be rolled or plaited and placed in an air tight container, e.g. a polyvinyl-polyvinylidene chloride/aluminium laminated sheeting, for 1-48 hours and maintained at a temperature of more than 10‹C, e.g. 20‹-60‹C., or for 1 minute at a temperature of above 100‹C. The treated material may be washed to remove unreacted reagents and catalyst residues. Fabrics may be pleated or creased and garments made up whilst they are in the moist state before the resin is formed.
Patent GB-847283-A (GB)
Title: Improvements in and relating to relief valves
Inventor: HUNT ROWLAND DELVILLE
IPC: F16K17/04
Filed: 1957-12-11
Abstract: 847,283. Valves. ENGLISH ELECTRIC CO. Ltd. Dec. 10, 1958 [Dec. 11, 1957], No. 38509/57. Class 135. In a relief valve, for example, for high-pressure wind tunnels, the internal pressure to be controlled acts on an annular surface of a thin wall cylindrical valve member 1 seated outside at 4 at the bottom and inside at 14 at the top and on the effective area of the lower side of a piston 13 and piston rod 2 against the action of the pressure in a loading cylinder 3 acting on the other side of the piston which is connected to the valve member by the piston rod 2 and spokes 12. A restricted passage 23 in the piston wall allows internal pressure to act on the underside of the piston when the valve is closed, but when it starts to open the passage is closed and loading pressure acting on the underside of the piston causes accelerated opening of the valve. The opening stroke of the valve member is cushioned by low resiliency buffers 7 of butyl rubber, and it is guided by the piston in the cylinder and the piston rod engaging bearings 16 attached by a spider to the casing 25. The restricted passage 23 may be formed in the cylinder wall and the pressure in the loading cylinder may be adjusted.
Patent GB-904809-A (GB)
Title: A support or stiffener for shirt collars
Inventor: SNARE VICTOR
IPC: B65D85/18
Filed: 1960-11-10
Abstract: 904,809. Shirt collar supports. SNARE & CLAYTON Ltd. March 8, 1961 [Nov. 10, 1960], No. 38622/60. Class 94(1). A shirt collar support consists of a strip V shaped when flat and having slits 8, 9 interengageable to link the ends. The slits may allow for different collar sizes. A slot 2 and projection 3 on a plastic insert 1 may engage the top button and the gap between the wings 4 respectively to locate the support against movement.
Patent GB-1396956-A (GB)
Title: Hydrostatic unit with variable cylinder-capacity and transmission incorporating said unit
IPC: F04B1/30
Filed: 1972-08-18
Abstract: 1396956 Fluid-pressure servomotor systems SOC ANON FRANCAISE DU FERODO 18 Aug 1972 [19 Aug 1971 6 June 1972] 38641/72 Heading G3P [Also in Divisions F1 and F2] A control system for varying the displacement of a swash-plate pump having a tiltable swash-plate 21, Fig. 1, or a tiltable cylinder block, Fig. 3 (not shown) comprises a double-acting hydraulic jack 53 operable to effect tilting towards the maximum displacement position for forward or reverse flow, the jack being controlled either manually, Fig. 1 (see Division F1), or automatically in response to the speed of the motor driving the pump, Fig. 7. The tilt axis C is located on the cylinder block axis A at a position spaced from the point b of intersection of the plane containing the piston pivot centres E, so that working pressure forces act to reduce the tilt angle. In Fig. 7, a pump 112 is driven by the swash-plate pump drive motor. At idling speed, the output of pump 112 returns to reservoir 113 via a passage 117 with a restriction 119 in a slide valve 115. When the motor speed increases sufficiently, the pressure drop across restriction 119 is such that slide valve 115 is moved to the left against spring 116 and closes passage 119, the output of pump 112 then acting on the jack 53 via passage 110 and supply line 56 or 57 according to the setting of forward-reverse control valve 58, which also has a neutral setting shortcircuiting lines 56, 57. Full movement of valve 115 to the left depressurizes the jack via passage 125. Two valves 115 with different spring-loadings may be arranged in series. In Fig. 8 (not shown) the loading of spring 116 is adjustable either manually or by a mechanism, e.g. the fork assembly of a fork-lift truck. A throttle and check valve (140), Fig. 8 (not shown) may be inserted in passage 110 to throttle the flow to the jack, but permit free return flow therefrom.
Patent GB-1478740-A (GB)
Title: Processing for high permeability silicon steel
IPC: C21D8/12
Filed: 1975-09-22
Abstract: 1478740 Processing silicon steel ALLEGHENY LUDLUM INDUSTRIES Inc 22 Sept 1975 [18 Nov 1974] 38766/75 Heading C7A [Also in Division B3] Steel containing in percentage by wt. C - 0À07 Si 2À6 - 4 Mn 0À03 - 0À24 S and/or Se 0À01 - 0À09 (#0À01 Se) Al 0À015 - 0À04 N - 0À02 Cu 0À1 - 0À5 Fe is hot rolled, cold rolled in one or more stages with an anneal before the final stage, which latter must effect a reduction of at least 80% in thickness, decarbarized and finally annealed to produce a cube-on-edge orientation yielding a permeability of at least 1850 G/oe at 10 Oe. The anneal preceding final cold rolling is carried out at 1400 - 2150F for 15 seconds to 2 hours followed by  cooling to a temperature in the range 1700-750F at a rate not exceeding that in a static atmosphere or a continuous processing line with no intentional atmospheric motion, and then quenching from that temperature to below 500F with liquid or a gas stream. Where annealing is carried out in the range 1400-1700 F the quenching may be directly applied.
Patent GB-340762-A (GB)
Title: An improved method for the manufacture of powdered iron or iron alloy for magnetic cores
IPC: B22F9/04
Filed: 1929-12-18
Abstract: 340,762. Electromagnets. HARTSTOFF-METALL AKT.-GES., 39, Kaiser Wilhelm Strasse, Copenick, Berlin. Dec. 18, 1929, No. 38859. Convention date, Dec. 18, 1928. [Class 35.] Powdered metal for cores of magnets, Pupin coils, &c. is prepared by reducing iron or iron alloy which has been cooled from the molten state to moderate size, e.g. wire of 1-2 mm. diameter, heating to redness in a current of hydrogen, nitrogen or ammonia, and then grinding to powder. The hot iron may be cooled rapidly before grinding. The pieces may also, before grinding, be rounded off by a hammering or like action, such as that produced by the machine described in Specification 300,879, [Class 83 (ii), Metal articles &c.]. Iron with from 0À3 to 0À4 per cent of carbon may be employed.
Patent GB-365287-A (GB)
Title: Accumulator charging apparatus in economical connection
IPC: H02J7/04
Filed: 1930-12-29
Abstract: 365,287. Charging batteries. NOWAK, H., 7, Elsenpfukestrasse, Wittenau, Berlin. Dec. 29, 1930, No. 39043., Convention date, Dec. 27, 1929. Drawings to Specification. [Class 38 (iv).] Accumulators are charged in series with a household a.c. supply by arranging two batteries in parallel circuits each in series with a halfwave rectifier and with the household apparatus, the rectifiers being freely conducting in opposite directions respectively. Voltage reduction due to suppression of one half-wave is thus avoided.
Patent GB-1262200-A (GB)
Title: Releasable handle
Inventor: THOBROE EIVIND CHRISTIAN
IPC: F16D1/06
Filed: 1969-08-05
Abstract: 1,262,200. Securing handles on spindles. E. C. THOBROE. 24 July, 1970 [5 Aug., 1969], No. 39152/69. Heading F2U. A handle 2 mounted on the end of a spindle 10 is formed with a toothed recess normally held in engagement with a correspondingly toothed spindle shoulder 8 by an axial screw 14 and helical spring 16, the handle being movable axially against the spring to release it and thus permit adjustment of the relative angular setting of the handle and spindle.
Patent GB-1172178-A (GB)
Title: Plasma Gun
IPC: H05H1/24
Filed: 1968-08-19
Abstract: 1,172,178. Discharge apparatus. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Aug., 1968 [22 Aug., 1967], No. 39644/68. Heading H1D. A plasma generator employed in a vacuum tube for physical investigations comprises a central rod electrode 1, an insulating sheath 2 and an outer block-shaped electrode 5 of sintered metal adsorbed with the gas from which the plasma is to be formed. The insulating sheath extends as shown to the upper ends of the electrodes 1, 5 between which an arc may be struck on discharge of the capacitor 13. The upper end of the insulating sheath is ground to form a convex surface. By abrading the upper flat face of the device the thickness of insulation between the ends of the electrodes 1, 5 may be adjusted to be about 1 mm. A heater 6 is incorporated in the block 5 and serves to de-gas the block prior to impregnation with the desired gas, e.g. deuterium, and in operation serves to release the deuterium. The electrode 1 consists of titanium, molybdenum or thoriated tungsten and is welded to the circular plate 2 which forms the end of a pin 3 of stainless steel or an Fe-Ni-Co alloy, the insulating sheath 2 consists of alumina or other ceramic material and the block 5 consists of sintered titanium particles, 40 to 100 Á in diameter. When the device is introduced into the vacuum tube, previously adsorbed argon is removed by heating the block 5 and the deuterium taken up. Suitable dimensions are given.