baber/WOPTO huggingface dataset:
Patent GB-1087220-A (GB)
Title: An improved ph electrode
IPC: G01N27/30
Filed: 1966-08-05
Abstract: 1,087,220. pH measurement. REGENTS OF THE UNIVERSITY OF CALIFORNIA. Aug. 5, 1966 [Jan.6, 1966], No.35229/66. Heading G1N. A pH cell e.g. for determining the pH of blood, comprises a glass tube 10 with a sample capillary tube 11 of the glass membrane type running through it and having seals 13, 14 and an end stopper to divide it into two chambers, the first containing a silver/silver chloride electrode 22 in a standard buffered electrolyte, and the second containing a calomel reference electrode 25 communicating with a chamber J through which potassium chloride electrolyte is flowed. The capillary 11 passes through the reference electrode and provides a liquid junction with the potassium chloride in the exit tube 30. The insulating seals 13, 14 comprise a body of oil between two oil-resistant rubber plugs. The cell may be sealed in a water bath with O-rings 35, 36. In a modification Fig. 5 the cell is formed integrally with the water-bath, and the pH and reference electrode assemblies (45, 46) are arranged transversely to the sample tube.
Patent GB-430257-A (GB)
Title: Improvements in burners for pulverulent fuel
IPC: F23L17/00
Filed: 1933-12-15
Abstract: 430,257. Pulverulent-fuel burners. WATSON, J., 5, Hareshore Road, South Wellfield, Earsdon, Northumberland. Dec. 15, 1933, No. 35381. [Class 75 (i)] Primary air and fuel are supplied through a tube b with a whirling movement imparted by a helical vane c to a mixing chamber a and secondary air is supplied through a tube g (or h) to a diverging cone e supported concentrically within the chamber a by helical vanes f immediately to the rear of the converging conical mouth d of the chamber so that the moisture issues as a hollow stream surrounding the stream of secondary air. Gas may be supplied through the tube h (or g) for ignition purposes when a low volatile fuel is used or for controlling the temperature in the burner mouth. The chamber a is provided with an air cooling jacket j.
Patent GB-847966-A (GB)
Title: Improvements in fluxes
Inventor: ROBERTS DANIEL FRANK THOMAS
IPC: B23K35/02
Filed: 1957-11-13
Abstract: A submerged arc welding flux comprises an admixture of two granular ingredients of different size and bulk density, the granules of the two ingredients not differing in size by more than 100 mesh B.S. sieve and the bulk density of the heavier granules being not more than five times that of the lighter granules.  The flux preferably consists of an admixture of two of the three following ingredients:- (a) an ingredient produced by granulation of briquettes formed by compaction of flux powders under pressure in the presence of a binder, e.g. as described in Specification 846,282, (b) an ingredient produced by granulation of a mixture with water or other liquid of flux powders one of which is a material (e.g. clay or slaked lime) having granulating properties, e.g. by forcing the mixture through a sieve as described in Specification 847,965, and (c) an ingredient produced by granulation of a naturally occurring material, e.g. serpentine, olivine or wollastonite.  Alternatively, ingredient (b) may contain ground glass as a granulating agent together with an organic binder (e.g. sodium methoxy cellulose) or an inorganic binder (e.g. sodium or potassium silicate).  One of the ingredients may also contain a reactive metal to be alloyed with the weld metal, e.g. silicon or manganese present as a ferro-alloy.  Other fluxing ingredients mentioned are fluorspar and sand.
Patent GB-1159119-A (GB)
Title: Polymerisable Paint Binders and a Coating Method Employing such Binders
IPC: C08F265/04
Filed: 1966-08-09
Abstract: 1,159,119. Coated surfaces. FORD MOTOR CO. Ltd. 9 Aug., 1966 [13 Aug., 1965], No. 35513/66. Heading B2K. [Also in Division C3] Substrates (e.g. of wood or metal) are coated by applying thereto a film of paint binder comprising a film-forming solution of a vinyl resin in one or more liquid vinyl monomers copolymerisable with the resin by ionising radiation, the resin having a molecular weight in excess of about 1000, containing 0.5-3 olefinic unsaturation units per 1000 of the numerical value of the molecular weight, and at least a major proportion by weight of the resin being derived from acrylic monomers; and subjecting the applied film to ionising radiation to copolymerise the resin and vinyl monomers. (The term "acrylic monomers" is used to include α,#-monoethylenically unsaturated monocarboxylic acids and esters thereof, e.g. acrylic, methacrylic or chloroacrylic acid and their esters.) The paint binder may, if desired, contain a pigment (e.g. TiO 2 ,) and/or filler. The ionising radiation is preferably an electron beam but other high energy particle radiation or ionising electromagnetic radiation may be used. The film of binder may be applied by spraying, brushing, roll coating, flow coating, or by the silk screen process, preferably in a depth of 0.1-4.0 mils. Suitable liquid vinyl monomers include vinyl hydrocarbons such as styrene and acrylic monomers such as methyl methacrylate. The vinyl resin component of the paint binder is preferably one obtained by copolymerising monomers (acrylic or mainly acrylic) to give a polymer having reactive groups such as hydroxyl or glycidyl groups, and reacting said polymer with an ethylenically unsaturated monomer containing a complementary reactive group, e.g. a carboxyl group, whereby unsaturation is introduced into the polymer; particularly suitable vinyl resins are reaction products of {a) a copolymer of methyl methacrylate, ethyl acrylate, glycidyl methacrylate and, optionally, styrene with (b) methacrylic acid. The cured films are wear- and weather-resistant and can be applied for decorative purposes.
Patent GB-1019572-A (GB)
Title: Intermediates of use in the preparation of emetine and related compounds
Inventor: RITCHIE ALEXANDER CRAWFORD
IPC: C07D455/08
Filed: 1961-10-02
Abstract: The invention comprises (a) quaternary compounds having cations of the skeletal formula <FORM:1019572/C2/1> wherein R1 and R2 are aliphatic, araliphatic or aryl groups, R3 is H or OH, R4 is H, or R3 and R4 together form a carbon-carbon bond and R5 is a group COR1 or CH2R1, R4 being hydroge when R5 is COR1, with one or more anions; (b) a process for the preparation of compounds of the above formula by reacting a compound of the formula <FORM:1019572/C2/2> with a compound R2X, wherein X is an anion-forming atom or group, such as sulphate or p-toluenesulphonate and (c) a process for the preparation of compounds of the formula <FORM:1019572/C2/3> by decomposing I to remove the 3-oxo-alkyl group from the 21-position, e.g. by treatment with acids or bases or by heating, preferably in a solvent.  Suitably the group R1 may be alkyl, e.g. methyl, phenyl or benzyl and R2 may be arylmethyl, alkyl, hydroxyalkyl or alkenyl, and the benzene rings may carry benzyloxy, phenoxy or alkoxy substituents, e.g. methoxy groups in the 61, 71, 9 and 10 positions or methylenedioxy substituents.  If the group R2 is an arylmethyl group, it may be removed by hydrogenolysis.  An alkenyl group R2, e.g. allyl, may be reduced to the corresponding saturated group.  If R5 is a group COR1, it may be converted to a group CH2R1 by reduction. In examples, 2-hydroxy-3-acetyl-21-(3-oxo - n - butyl) - 61,71,9,10 - tetramethoxy - 2 - isoquinolylmethyl-benzoquinolizine is treated with benzyl bromide to give the bromide of a 61,71,9,10-tetramethoxy derivative of I, R1= CH3, R2=benzyl, R3=OH, R4=H, R5=CH3CO. This is decomposed to give the corresponding tertiary base III, R2=benzyl, and dehydrated to give the corresponding unsaturated compound, the 61,71,9,10 - tetramethoxy derivative of III, R2=benzyl, R3 and R4 form a carbon-carbon bond and R5=CH3CO, this is treated with ethane dithiol to form the cyclic ketal of the keto group R5, which is reduced (sodium in liquid ammonia) to give N-benzyl-2,3-dehydroemetine, R5=C2H5, followed by removal of the 21-benzyl group to give 2,3-dehydroemetine. Similarly the same starting material is quaternated with methyl iodide and with allyl bromide and the product is converted to the corresponding tertiary compound III and, in the case of the allyl derivative, reduced.
Patent GB-522383-A (GB)
Title: Improvements in or relating to number changing mechanism for number printing machines
IPC: B41K3/12
Filed: 1938-12-07
Abstract: 522,383. Number-printing apparatus. JONES, K. W. Dec. 7, 1938, No. 35666. [Class 100 (ii)] In a number-printing apparatus in which the advance of the numbers is effected by the passage of an operating roller or pin through a cam track, the track comprises a fixed member forming one wall of the track, and a movable member operated automatically to assume two positions in one of which it provides the other wall of the cam track and in the other of which it prevents movement of the roller into the cam track and directs it into a path in which it is inoperative to change the number wheels. In one form, Fig. 4, the movable member 6 is carried by a slotted lever 21 engaged by a pin 11 on an arm 12 fixed to a rock shaft 13 actuated by a cam to move the member 6 to the position shown in full lines in, which it, forms, with a fixed member 5, a cam track for the roller of the numbering box which is mounted on a rotary drum, or to move the member 6 to the dotted line position in which it closes the entry to the cam track and causes the roller to travel in a circular path which may be closed on the side remote from the member 6 by a guide 23. The cam for actuating the shaft 13 is shaped according to the number of repeat impressions desired. The member 6 may be moved positively in both directions, or positively in one direction and by a spring in the other direction. In modifications, the member 6 is actuated electromagnetically or by fluid pressure, and in the construction of Fig. 9, it is moved into its non-changing position by a pin 48 on the numbering box and returned by a spring 44 when permitted by the de-energization of a magnet 46. The circuit of this magnet is controlled by a switch actuated at intervals, in accordance with the number of repeats desired, by a cam. When energized it holds the member 6 against return movement by the spring 44. The invention may be applied to machines having reciprocating numbering heads.
Patent GB-1454207-A (GB)
Title: Hole plate for a stock inlet for a paper making machine
IPC: D21F1/02
Filed: 1974-08-14
Abstract: 1454207 Paper-making apparatus ESCHER WYSS GmbH 14 Aug 1974 [29 Aug 1973] 35788/74 Heading D2A  A hole plate 2 for the stock inlet of a paper-making machine comprises stock flow passages 6 extending therethrough from a planar upstream face to which stock is fed obliquely by a distributor box 1, and a projection 10 on the upstream face of the plate 2 adjacent the entry opening to each passage 6 such as to set up eddies W and stop the accumulation of fibres at the openings, the height of each projection increasing from zero to a maximum adjacent its associated opening and the width B of the projection adjacent the opening being approximately equal to the width of the opening. As shown in Figs. 2 and 4, the projections 10 may have a triangular shape both in longitudinal and transverse section. Alternative shapes of projection are described with reference to Figs. 5-12 (not shown).
Patent GB-1172187-A (GB)
Title: Chlorine-Containing Terpenoid Esters and a Process for Producing the same
Inventor: BIERWIRTH EGON
IPC: C08K5/12
Filed: 1968-07-26
Abstract: 1,172,187. Chlorine-containing terpenoid esters. DYNAMIT NOBEL A.G. 26 July, 1968 [27 July, 1967], No. 35919/68. Heading C2C. [Also in Division C3] The invention comprises chlorine-containing tempenoid esters which are the Diels-Alder adducts of hexachlorocyclopentadiene and a vinyl, allyl or methylallyl ester of a polycarboxylic acid having at least one double bond and in which all the carboxylic groups are esterified, there being approximately n moles of hexachlorocyclopentadiene for each mole of the ester wherein n is the number of double bonds in each molecule of the ester, and which are produced by a Diels-Alder reaction between hexachlorocyclopentadiene and an ester as defined above. Suitable esters are the vinyl, allyl or methyl allyl esters of maleic acid, fumaric acid, itaconic acid, mesaconic acid, citraconic acid, chloromaleic acid and muconic acid. The reaction between hexachlorocyclopentadiene and diallyl itaconate, diallyl fumerate and diallyl maleate is described; the reaction products from diallyl fumerate and diallyl maleate are identical and are thought to have the structure The compounds of the invention act as flame-inhibiting agents.
Patent GB-508204-A (GB)
Title: Improvements in or relating to artificial teeth and method and means of making the same
IPC: A61C13/00
Filed: 1937-12-28
Abstract: 508,204. Moulding artificial teeth. DENTAL RESEARCH CORPORATION. Dec. 28, 1937, No. 35939. Convention date, Dec. 28, 1936. [Class 87 (ii)] Relates to the moulding of hollov artificial teeth made of porcelain. Flexible material such as rubber, plasticised vinyl chloride, gel atine, glue, &c. is poured around a master core and a master tooth to pro duce cavities 6, 7, Figs. 1 and 3, in a flexible mould 5. A ring 15 having a radial wire with a downwardly projecting end 22 is then placed in a groove 11 so that the wire lies in a slot 24. Flexible material, wax, or resin is then poured into the cavity 6, and when it has set, the ring with the wax core is transferred to the groove 12, so that the core 25 lies in the cavity 7 formed by the master tooth. Porcelain 28 with a temporary binder is then poured into the space between the wax core and the walls of the cavity 7 and the mould is subjected to vibration by a device 32. When the porcelain is sufficiently compacted, the core with the porcelain is removed and dried by warming. The temperature is then raised to melt the wax, thus leaving the porcelain shell 28 ready for firing. The shells may be stained internally, for example by adding colouring materials to the temporary cores 25. The mould may have moulding cavities on four sides.
Patent GB-430575-A (GB)
Title: Manufacture of amino-substituted organic arsenic compounds
IPC: C07F9/74
Filed: 1933-12-21
Abstract: Amino - substituted 1 - hydroxy - 3 - methoxybenzene arsonic acids are prepared by reduction of the corresponding nitro compounds to the arseno stage and then oxidizing with hydrogen peroxide.  The aminoarsenobenzenes obtained by the reduction may, if desired, be acylated prior to the oxidation and the acyl group split off after the oxidation.  The products may be reduced to compounds containing trivalent arsenic.  According to the examples; (1) 3 - nitro - 4 - hydroxy - 5 - methoxyphenylarsonic acid is reduced with hydrosulphite to 3 : 3<1> - diamino - 4 : 4 - dihydroxy - 5 : 5<1> - dimethoxyarsenobenzene, from which 3-amino-4-hydroxy - 5 - methoxyphenyl - 1 - arsonic acid is obtained by addition of hydrogen peroxide and precipitation with acetone; (2) the same product is obtained by treating 3 : 3<1> - diacetylamino - 4 : 4<1> - dihydroxy - 5 : 5<1> - dimethoxyarsenobenzene, prepared by acetylating the corresponding aminoarsenobenzene, with hydrogen peroxide and then saponifying with hydrochloric acid.  The Specification as open to inspection under Sect. 91 states that the acyl groups may be also split off before the oxidation.  This subjectmatter does not appear in the Specification as accepted.
Patent GB-508385-A (GB)
Title: Improvements in or relating to method and apparatus for diffusion control
IPC: B03D1/16
Filed: 1937-12-30
Abstract: 508,385. Concentrating ores; mixing- apparatus. DRAKE, L. D. Dec. 30,1937, No. 36094. Convention date, Feb. 1. [Classes 82 (ii) and 86] Flotation apparatus for concentrating ores comprises a deep tank fitted with a central tube at the top of which is an impeller whereby circulation of the pulp is effected upwards through the tube and downwards in the surrounding space, gas being supplied to the ascending column. The pulp is supplied to the tank A through a feed box 2 and is drawn upwards through the tube 10, which may be cylindrical, or tapering, as shown, by an impeller 9 carried by a hollow shaft 8 through which air is supplied. The tube flares outwardly above the impeller and is fitted with radial vanes 12. The tube is supported by rods 14 which also carry a plate 15 provided with flared perforations and supporting a slotted, conical deflector 16. The pulp is discharged by a valve 26 carried by a counterweighted lever 28 one arm of which carries a vessel having a restricted discharge outlet, the vessel receiving the overflow from an adjustable weir in the discharge chamber 24.
Patent GB-1395070-A (GB)
Title: Method of treating aluminium foil for use in electrolytic  capacitors
IPC: H01G9/04
Filed: 1972-08-02
Abstract: 1395070 Anodising PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Aug 1972 [5 Aug 1971] 36145/72 Heading C7B Aluminium foil for use in electrolytic capacitors is immersed in deionized water at a temperature over 75‹C and up to 100‹C, subjected to an anodising treatment and to a post-anodising treatment. Before anodising and/or between the anodising and post-anodising treatment, the foil is immersed in a liquid having a pH between 2 and 8.5 and containing between 0.01 and 0.5 wt per cent or a normal phosphate or an acid phosphate. Where the phosphate treatment takes place after the anodising treatment a voltage 3 to 5 wt per cent of the anodising voltage may be applied to the foil. The electrolyte for anodising may be boric acid and ammonia in 0.004% phosphoric acid. The current density may be 7.5 mA/cm<SP>2</SP> for 1 hour. A post treatment may be 0.05 mA/cm<SP>2</SP> at 30‹C in 0.75% ammonium pentaborate.
Patent GB-975576-A (GB)
Title: Improvements in or relating to pressure suits
Inventor: SIMPSON ROBERT EMMERSON
IPC: B64D10/00
Filed: 1961-10-09
Abstract: 975,576. Pressure suits; helmets. MINISTER OF AVIATION. Jan. 7, 1963 [Oct. 9, 1961], No. 36169/61. Heading A3V. A pressure suit headpiece made to close like a purse comprises a pair of U-shaped frame members hinged together at the ends of their limbs to constitute the jaws of the purse and means for raising the headpiece from a position of rest on the wearer's shoulders to and maintaining it in, a preclosing position in which the hinges of the jaws are at the side of the wearer's head. The headpiece 10 made of flexible gas tight cloth and with a flexible transparent window 11 has two parts connected to hinged U-shaped frames 13a, 13b. Air inflatable tubes 16a, 16b, are connected at the ends with the frame or with the headpiece adjacent the frame and with the body portion of the headpiece or suit. When the headpiece is in the open position and air pressure is supplied to the tubes by opening a valve in the pipe 17 the tubes inflate first to the bends at the hinges and raise the hinges, then the tubes inflate further and close the headpiece. The valve may be operated manually or by an aneroid responsive device. Specification 974,485 is referred to.
Patent GB-1479366-A (GB)
Title: Venetian blinds
IPC: D02G3/26
Filed: 1974-08-16
Abstract: 1479366 Woven fabrics A DRIESSEN 16 Aug 1974 [25 Aug 1973] 36236/74 Heading D1K A venetian blind has slats woven with warp threads having different directions of twist so as to prevent any tendency of the slat to twist in use. Alternate threads may be of equal Z and S twists, the threads may be singles or plied, the threads may be arranged in groups and have different twist factors; the criterion being that the threads of one kind, in the fabric as a whole, cancel out the twisting tendancy of the threads of the other kind.
Patent GB-834275-A (GB)
Title: Electrostatic spraying installation
IPC: B05B5/16
Filed: 1956-11-27
Abstract: <PICT:0834275/III/1> An electrostatic spray-coating apparatus comprises an elongated spraying container having a spraying gap 1 extending longitudinally of the container, an inlet opening for liquid coating material at one end and an outlet opening at the other end of the container, whereby the liquid flows substantially parallel to and along the gap 1, the width of which is such that liquid is prevented from passing therethrough by capillary action so long as no electric potential is applied between the container and an article to be coated.  Two flat members 2, 3 are adjustably secured at 4 to a rear wall 5 to form a hollow chamber 7 having a vertical elongated gap 1 through which liquid, supplied at 6 to one end of the chamber 7, is sprayed.  The gap 1 is of a width to ensure a capillary action, e.g. 0.15 mm. to 3.0 mm., whereby a pump is dispensed with, and the two edges 21,31 of the gap 1 may diverge lengthwise of the gap.  The member 5 may form the base of the chamber 7, the gap 1 running along the top, or a gap inclined to the horizontal, e.g. at 50 to 70 degrees, may be employed, and one edge 21, 31 may overlap the other edge.  Three inclined gaps 1, 11, 111, Fig. 7, may be connected at each end by hollow ducts to vertical tubes 13, 131 through which liquid is circulated by a pump 14 from a reservoir 15.  In another embodiment, in which the gap is vertical, a pump delivers liquid to the top of the spraying chamber and an elongated electrode is positioned in front of the gap and electrically connected to it to control the direction and amount of the spray.  In all embodiments the gap is connected to one pole of a source of high D.C. voltage and the article to be sprayed to the other pole.  Various modifications are mentioned, namely, the automatic adjustment of the gap width during operation and the reciprocation of the container lengthwise during operation.  The gap 1 may be curved or otherwise shaped to correspond with the surface of the articles to be coated, e.g. a circular gap for spraying cylindrical bodies.
Patent GB-1353561-A (GB)
Title: Monosubstituted ureas as varnish-removing additives
IPC: C10M169/00
Filed: 1971-08-02
Abstract: 1353561 Fuel and lubricant additive EDWIN COOPER & CO Ltd 2 Aug 1971 [3 Aug 1970 (2)] 36275/71 Headings C5G and C5F A fuel or lubricant composition contains a substituted urea of formula wherein R<SP>1</SP> = H or alkyl or alkenyl; R<SP>2</SP> = alkyl or alkenyl and wherein the sum of C atoms in R<SP>1</SP> and R<SP>2</SP> is 5 to 25. The exemplified compounds are octadecyl-, dodecyl-, 9-octadecenyl, t-dodecyl-, 2-ethyl hexyl urea. The lubricant is mineral, synthetic ester, polyphenylether or thioether based oil, and which may contain a solubilizer, e.g. Ca alkyl benzene sulphonate for the urea, and a phosphodithioate. The fuel is a gasoline or distillate fuel oil which in addition may contain silicones, dinitropropane, amyl nitrate, metal sulphonates and a sulphonate or sulphonic acid solubilizer for the urea.