baber/WOPTO huggingface dataset:
Patent GB-879235-A (GB)
Title: Copper-containing azo dyestuffs
IPC: C09B45/08
Filed: 1960-03-14
Abstract: The invention comprises copper complexes of dyes of formulae:- <FORM:0879235/IV(c)/1> , <FORM:0879235/IV(c)/2> or <FORM:0879235/IV(c)/3> where R is a coupling component residue and X is #s to the azo link and is a phenolic or enolic OH group.  The complexes may be made in conventional fashion by coupling diazotized 2-amino-5, 4-naphthosultone- 8-sulphonic acid or 2-amino- 5-acyloxynaphthalene-4, 8-disulphonic acid with an azo component in #s-position to a phenolic or enolic OH group, oxidizing coppering the products and, if desired, splitting or saponifying the sultone group, or the o-acyl group, in an alkaline medium.  R may contain such substituents as alkyl, alkoxy, amino, halogeno, nitro, acylamino, sulphonic acid, carboxylic acid and azo groups.  Phenols, naphthols, pyrazolones, acylacetic acid arylides and heterocyclics such as dihydroxy-quinolines, are indicated coupling components. Substituents may be introduced into R, or changed therein, before or after coppering and/or hydrolysis or splitting.  The monoazo dyes are preferably used for animal, and the polyazo dyes for vegetable, fibres.  Decoppered dyes may be used and after-coppered on the fibre. Examples are provided of the preparation of the dyes and their use in colouring processes the diazo components used being 2-amino-5, 4-naphthosultone- 8-sulphonic acid and 2-amino- 5-benzenesulphonyl naphthol-4, 8-disulphonic acids and representative of R, when the dyes are monoazo, are 2-naphthol-3, 6-disulphonic acid, 2-phenylamino- 5-naphthol- 7-sulphonic acid, 1-(41-sulphophenyl)- 3-methyl- 5-sulphonic acid and 1-chloro- 2-acetylamino- 5-naphthol- 7-sulphonic acid, and disazo dyes are prepared from a dye derived from the last-named coupling component by hydrolysing the acetylamino group, diazotizing and coupling with 2-naphthol-3, 6-disulphonic acid, and by treating the coppered, hydrolysed dye 2, -amino-5, 4-naphtho-sultone-8-sulphonic acid --> 2-acetyl-amino-5-naphthol-4, 8-disulphonic acid with phosgene and a trisazo dye is made from 4, 41-diamino-3, 31-dimethoxy-1, 11-diphenyl, the copper complex of the dye 2-amino-5, 4-naphthol-sultone-8-sulphonic acid --> 1-naphthol- 4-sulphonic acid and 1-(41-sulphophenyl)- 3-methyl- 5-pyrazolone. Various colour shades are obtained.
Patent GB-493104-A (GB)
Title: Process for the manufacture of diazotisable dyestuffs
IPC: C09B43/132
Filed: 1937-03-30
Abstract: Diazotizable azo dyes are prepared by reacting yellow aminoazodyes of the general formula A-N=N-B-NH2 wherein A stands for the radicle of an aromatic or heterocyclic compound, which may contain azo and/or free hydroxy groups, and B stands for p  an arylene radicle, not containing a free hydroxy group, with an aroyl halide, containing in the aryl nucleus, besides a substituent convertible into an amino group, i.e. a nitro or N-acyl radicle, one of the following negative substituents, -CN, -SO2-, -CO-, -NO2 or halogen, and converting the nitro or N-acyl radicle into an amino group by reduction or saponification.  Alternatively, arylene diamines, not containing a free hydroxy group but which may contain other solubilizing groups, are reacted with an aroyl halide of the type defined above, the amino group diazotized and coupled with a component corresponding to the radicle A above, and finally the nitro or N-acyl radicle is converted into an amino group.  In examples: (1) the dyestuff obtained by treating 2-naphthylamino-6.8-disulphonic acid --> m-toluidine with p-nitrobenzoyl chloride, reducing and diazotizing and coupling with m-toluidine, is condensed with the chloride of 4-carboxy-2-nitrophenylmethylsulphone in the presence of sodium carbonate and the nitro group reduced; (2) the dyestuff obtained by removing the acetyl group from 4-aminoacetanilide-3-sulphonic acid --> salicylic acid, condensing with p-nitrobenzoylchloride, reducing and diazotizing and coupling with m-toluidine, is treated as in (1); (3) 1,3-phenylenediamine-4-sulphonic acid is condensed with the chloride of 4-carboxy-2 - nitrophenylmethylsulphone the product diazotized and coupled with the pyrazolone, prepared from dehydrothiotoluidine sulphonic acid, of the formula <FORM:0493104/IV/1> and the nitro group reduced; (4) the condensation product of (3) --> 1-m-aminophenyl-5-pyrazolone-3-carboxylic acid --> 1-m-aminophenyl-5-pyrazolone-3-carboxylic acid --> 1-phenyl - 5 - pyrazolone - 3 - carboxylic acid is reduced; (5) the chloride of 4-carboxy-2-nitrophenylmethylsulphone of (2) is replaced by 3.5-dinitrobenzoyl chloride and one nitro group is reduced; (6) 3.5-dinitrobenzoyl-p-phenylenediamine --> salicylic acid is reduced until one nitro group is converted to amino.  The dyes yield yellow shades on cotton and after diazotization and coupling on the fibre with b -naphthol yellower shades are obtained than when the negative group is absent from the aroyl radicle.  As coupling components for the alternative process pyrazolones, acetoacetic arylides, methyl ketol, salicylic acid, dihydroxy quinoline and derivatives thereof are specified.  In the Provisional Specification neither B nor the arylene diamines is restricted with regard to free hydroxy groups and the aroyl halide may contain any negative substituent. Specifications 8013/11, 303,026, 317,431, and 367,675, [all in Class 2 (iii)], are referred to.
Patent GB-539255-A (GB)
Title: Improvements in or relating to the conching of chocolate
IPC: A23G1/12
Filed: 1940-05-23
Abstract: 539,255. Conches. LAWTON, G. May 23, 1940, No. 9134. [Class 86] Chocolate is conched by causing it to fall repeatedly in a stream on to a' deflecting surface. The vessel 1 is supplied by a pipe 11 and the chocolate is circulated by a pump 8 through a pipe 9 which returns it to the vessel at the top of which is a plate 5 on to which the chocolate falls. Discharge is effected through an outlet 10.
Patent GB-456811-A (GB)
Title: Inking device for intaglio rotary printing machines
IPC: B41F31/08
Filed: 1936-03-27
Abstract: 456,811. Printing-machines. MASCHINENFABRIK AUGSBURG -NURNBERG AKT.-GES., 7, Stadtbachstrasse, Augsburg, Germany. March 27, 1936, No. 9220. Convention date, April 26, 1935. [Class 100 (ii)] Inking-apparatus.- In a rotary intaglio printing - machine the ink is conveyed to the cylinder 2 by a rotary pump 3 arranged within an ink reservoir 1 beneath the cylinder. The pump is driven by a motor 5 and pumps the ink into a trough 7, disposed near the impression point 8, from which it overflows on to the cylinder. To allow reversal of the direction of rotation of the cylinder, the reservoir may be reversed so that the pump and its associated parts are on the opposite side of the cylinder, or the reservoir may be made symmetrical with respect to the vertical plane through the axis of the cylinder so that the pump &c. may be positioned at either side.
Patent GB-493499-A (GB)
Title: Improvements in and relating to tubular electric resistance heating elements
IPC: H05B3/50
Filed: 1938-03-26
Abstract: 493,499. Electric heating resistances. BACKER, C. B. March 26, 1938, No. 9294. Addition to 484,148. [Class 39 (iii)] The resistance heating-element described in the parent Specification is modified by having the metallic tube or sheath 3 composed of three or more sheets enclosing a resistance coil 1 and insulating powder 2. Outwardly projecting ribs 4 are welded together and the resulting element may be enclosed in a tube 5.
Patent GB-526669-A (GB)
Title: Improvements in and relating to processes of and apparatus for the production of magnesium
IPC: C22B26/22
Filed: 1939-03-24
Abstract: 526,669. Electric furnaces. ALUMINIUMINDUSTRIE-AKT.-GES. March 24, 1939, No. 9344. Convention date, March 24, 1938. [Class 39 (iii)] [Also in Group II] Magnesium is obtained by reducing magnesium oxide or other oxygen-containing compound by a reducing agent producing no volatile compound, e.g., calcium carbide, silicon, ferro-silicon, aluminium, silico-aluminium, or calcium silicide, the reaction being effected in vacuo in a vessel of iron or iron alloy having a wall thickness at least 25 mm. disposed in an evacuated chamber having an electric heater. The magnesium is deposited at a cooler place inside or outside the reaction vessel. The use of a thick vessel avoids gas diffusion, and deformation of the vessel, and provides heat storage. The residual gas in the vessel may be air or nitrogen. The vacuum may be broken after the reaction by introducing nitrogen or producer gas to avoid scaling of the vessel walls. The reaction mixture may consist of finely powdered magnesium oxide, calcium carbide, and a small proportion of fluor spar, briquetted at high pressure. The mixture 5 is contained in a thin steel vessel 3 within the thick iron vessel 1. Magnesium 6 is deposited in the cooler cover 4, and the vessel 3 may then be removed and replaced by another. A watercooled jacket 7 is provided. An electric heater 9 is arranged within a structure 10 of the refractory bricks surrounded by slag wool 11. The inner and outer vessels are evacuated through pipes 12, 13. The vacuum in the outer vessel can be maintained while the charge in the inner vessel is being changed. Scaling or burning of the iron may be prevented by embedding the article in a mixture of aluminium powder, alumina, and ammonium chloride, and heating in a current of hydrogen, or by heating it to 900‹-1000‹C. in an aluminium-iron alloy with a small proportion of ammonium chloride.
Patent GB-1380499-A (GB)
Title: Indicator for detecting hydrogen peroxide and peroxidative compounds
IPC: C12Q1/28
Filed: 1972-02-29
Abstract: 1380499 Detection of hydrogen peroxide or a peroxidative active compound MILES LABORATORIES Inc 29 Feb 1972 [1 March 1971] 9388/72 Heading G1B A composition for detecting hydrogen peroxide or a peroxidative active compound by the catalytic oxidation of an indicator by hydrogen peroxide in the presence of the peroxidative active compound comprises as indicator Bindschedler's Green (4, 4'-bis (dimethylamino) diphenylamine), preferably as 0À005 to 0À15 wt per cent of the composition, and either a peroxidative active compound or hydrogen peroxide respectively. The peroxidative - active compound may be peroxidase, for example in proportion 0À01% to 0À05%, haemoglobin or a molybdate. The hydrogen peroxide may be produced by oxidation of glucose. Compositions exemplified comprise glucose oxidase, peroxidase, carrageen, dioctyl sodium sulphosuccinate, trismalonate buffer, and the indicator; glucose oxidase, peroxidase, carrageen, polyvinyl pyrrolidone, citrate buffer, maleic anhydride - methylvinyl ether copolymer, sodium lauroyl sarcosinate and the indicator. The compositions may be in the form of tablets, powders or solutions, or may be impregnated into strips.
Patent GB-120179-A (GB)
Title: Improvements in Holding Devices for Sheets of Paper or the like in Apparatus for Facilitating Entries in Book-keeping.
Inventor: VILKENSON VILKEN
IPC: B41L3/02
Filed: 1918-06-07
Abstract: 120,179. Vilkenson, V. June 7, 1918. Book-keeping.-In a device for facilitating entries in book-keeping, the leaves, carbon sheet, &c. are held in position by clamping devices and are provided with projections or perforations, arranged at intervals corresponding to the interval between entries, and which engage with perforations or projections on the clamping members. As shown in Fig. 1, the loose card 5, journal leaf 4 and carbon sheet 3 are provided with incisions 14 or perforations 13 which engage projections 12, while the loose card 7, which can be lowered beneath the carbon sheet 3, has incisions 14 engaging projections 15 on a clamping bar 10.
Patent GB-493292-A (GB)
Title: Process for the treatment of cellulosic fibrous materials
IPC: D06L4/12
Filed: 1937-04-05
Abstract: The treatment of cellulosic fibrous materials in alkaline or neutral aqueous baths, e.g. in digesting, washing, bleaching and mercerizing treatments, is facilitated by adding to the bath a very small quantity of an indophenol, indamine, thiazine or oxazine dyestuff, e.g. Indophenol, Methylene blue, Nile blue, p  Toluylene blue, Capri blue or New methylene blue or a leuco compound thereof.  The dyestuff may, for example, be introduced into the bath upon a carrier, e.g. of cotton.  In examples: (1) cotton is bleached in a cold aqueous solution of sodium hypochlorite containing 0,0008 gram per litre of Methylene blue; subsequent treatment with peroxide may also be effected with an addition of Methylene blue; sodium carbonate and oxidation catalysts such as nickel, cobalt or silver salts may also be added to the bleaching liquors; (2) lint is treated with a bucking lye containing 0,0012 gram per litre of New methylene blue, washed and bleached, without acidifying, with or without addition of Methylene blue as in (1) to the bleaching liquor; the bucking lye may also contain other usual additions such as phenols, alcohols, terpenes or sulphites; the lye can be re-used more efficiently than lye used without addition of the dyestuff; (3) cellulose pulp is bleached with a solution of chloride of lime or sodium hypochlorite with addition thereto of 18 grams Methylene blue per 1000 kilograms pulp; the bleaching may be performed in stages, a stage of low pH concetration of the liquor being followed by one of high pH concentration; reducing and oxidizing bleaching operations may alternate, Methylene blue being added in one or other or both operations; (4) a previously bleached sulphite pulp is refined by treatment with caustic soda solution with addition thereto of 21 grams Methylene blue per 1000 grams pulp; (5) cotton is bleached in a dilute solution at 40-100 DEG  C. containing hydrogen peroxide, an alkaline-reacting agent, such as ammonia, borax or waterglass and ,00005 gram per litre of leuco-Methylene blue; (6) cellulosic fibres, e.g. of cotton, linen or artificial silk are saturated with a dilute borax solution at ordinary temperature containing 0,00001 to 0,00015 gram per litre of Methylene blue and bleached with oxidizing agents.
Patent GB-771316-A (GB)
Title: Improvements relating to metal casting processes
Inventor: HANCOCK RALPH HAROLD
IPC: B23B51/04
Filed: 1954-04-01
Abstract: 771,316. Moulding-processes. ROLLSROYCE, Ltd. April 1, 1955 [April 1, 1954], No. 9649/54. Class 83 (1). [Also in Group V] In a " lost-wax " casting process for hollow articles, a preformed reinforcing member is supported within a hollow formation in the pattern prior to the investment thereof, so that investment-material flows into the space defined between the surface of the member and the internal surface of the hollow formation. The member 18 may be of silica, alumina, mullite, stainless-steel or nickel-chromium alloy &c. and is fastened by wax to the wax support 17 of the hollow wax-pattern 15, after the pattern has been coated with a refractory coating such as one comprising silica-flour, potassium-silicate solution, a solution of dioctyl sodium sulphosuccinate, a non-ionic wetting- agent, a soap-solution, a mixture of high molecular-weight liquid aliphatic alcohols, and carbon tetrachloride. The investment slurry 22 is prepared from fireclay-grog containing at least 40 per cent alumina, bound with an acid sodium-silicate solution containing 3.1 per cent by volume of a hexamine solution as a gelation accelerator. Specification 650,532 is referred to.
Patent GB-114374-A (GB)
Title: Improvements in Leg-rests.
Inventor: BROOKS WILFRED MASON
IPC: A47C16/02
Filed: 1917-07-05
Abstract: 114,374. Brooks, W. M. July 5, 1917 Rests, leg.-A leg-rest comprises a support a mounted between uprights c on a base d by means of pivots b adapted to be engaged in a series of slots e<1> in the uprights.
Patent GB-592534-A (GB)
Title: Improvements in electron beam devices
IPC: H01J25/12
Filed: 1944-05-19
Abstract: 592,534. Velocity - modulated tubes. WESTERN ELECTRIC CO., Inc. May 19, 1944, No. 9758. Convention date, Sept. 24, 1941. [Classes 39 (i) and 40 (iii)] An electron beam device includes means 62 for producing a velocity modulated beam, a collector electrode 72 for the electron beam, and a resonant chamber .83 through which the beam passes, said chamber being formed of two conductive portions insulated from one another and between which a potential difference is impressed, whereby the resonant chamber turns back the slower electrons but allows the faster electrons to pass and thus acts as a velocity sorting device. The resonator 62 for modulating the beam is coupled by means of a coaxial line with another velocity modulation device. The collecting electrode 3 of the second device is connected to the inner conductor 68 of the line and the outer conductor 65 of the line is connected to an electrode adjacent to electrode 3. The second device comprises an electron gun 1, a resonator 4 to modulate the beam in accordance with incoming signals and means 50 to generate local oscillations and further modulate the beam. The means 50 comprises a resonator of concentric structure containing three gaps 55, 56, and 57 with drift spaces in between and tuned by pistons 60 and 61. In order to improve tuning resonators may be used which have one or more side compartments, each containing a tuning piston.
Patent GB-527043-A (GB)
Title: Improvements in or relating to the manufacture of impregnated paper
IPC: D21H17/19
Filed: 1939-03-29
Abstract: 527,043. Impregnating - compositions for electric insulation. DISTILLERS CO., Ltd., and STAUDINGER, J. J. P. March 29, 1939, No. 9854. [Class 140] [Also in Group IV] Paper impregnated with polyvinyl aromatic hydrocarbons is prepared by immersing sheets or bands of paper in closely packed form, particularly in roll form, in a vessel containing the monomeric hydrocarbon alone, or in admixture with an amount of another polymerizable vinyl compound not exceeding 10 per cent. by weight of the mixture, or a concentrated solution of said compounds in a volatile solvent, effecting thorough impregnation by applying and then releasing vacuum, thereafter heating the impregnated paper to a temperature of between 100‹ and 150‹C. in the presence of an inert gas, so as to polymerize not more than 80 per cent. of the absorbed polymerizable substances where no solvent is used, or to effect polymerization of not less than 60 per cent. where a solvent is used, separating or unrolling the paper, and finally removing any monomeric substances and/or solvent remaining in the treated paper. The vinyl aromatic hydrocarbon may be styrene, an alkyl-substituted styrene or divinyl benzene, the other vinyl compound may be vinyl crotonate, and the solvent may be isopropyl benzene or xylene. In examples, a roll of unsized all-rag paper is immersed in monomeric styrene or a solution of styrene in isopropyl benzene and subjected to vacuum, the pressure is then raised to normal, excess liquid drained off, the wet roll heated in an atmosphere of nitrogen, and the roll finally opened and dried by heat. Specification 454,923 is referred to.
Patent GB-458645-A (GB)
Title: Improvements in floor construction
IPC: E04B5/36
Filed: 1936-04-03
Abstract: 458,645. Floors. HOPEWELL, R., 144, Plashet Road, Upton Park, London. April 3, 1936, No. 9865. [Classes 20 (ii) and 20 (iv)] Blocks B supported on the lower flanges of I-joists A are of a length less than the distance between the webs of adjacent joists, but greater than the distance between the lower flanges thereof, and such blocks are held against endwise movement, with the end of one block abutting the web of the adjacent joist, by metal spacers F which fit in the space between the opposite end of the block and the adjacent joist. Each joist A is provided with wide lower flanges a<1>, a<2> having chamfered edges. At one end b<2> of a block B, a transverse channel b<3> is provided for engaging the flange a<2> of a joist, and the other end b<1> is shouldered and rests upon the flange a<3> of a joist. The lower part b<4> of the end b<2> of a block is extended beyond the top part so as to project some distance across the underside of the flanges a<2>, a<3> of a joist. The side face b<6> of the extension b<4> and the side face b<5> of the stepped end b<1> are inclined as shown in Fig. 1 so as to provide a channel E which is subsequently filled with concrete. The blocks are arranged so that either end engages the web a<5> of a joist and a space C is provided between the opposite end of the block and the adjacent joist web for the reception of a metal spacer F. The metal spacers F, which are adapted also to reinforce concrete provided above and between the blocks, may be in the form of a bent wire grid as shown in Fig. 2. At one side of the grid, the parallel elements f<1>, f are connected by downwardly and inwardly bent legs f<3> having out-turned feet f<4> which are connected by bridge elements f<5>. At the opposite side, the elements f<1>, f<2> are connected by bridges f<8> disposed at a lower level than the rods f<1>, f<2>. The spacer F is adapted to embrace the upper flanges a<3> of a joist, and the legs f<3> extend downwards so that the feet f<4> rest upon the lower flange a<1> and fit snugly between the joist web a<5> and the end of the block. The rod portions f<1>, f<2> span the space between adjacent joists, and the bridge portions of the grids in adjacent bays may be interengaged. A spacer member may, alternatively, consist of a U-shaped element with its ends hooked to engage the upper flange of a joist and a bridge portion which hooks around the upper flange of an adjacent joist and extends down to constitute a spacer between the joist and a block. The concrete provided in the joint channel E below a joist may be reinforced by a bent wire member G, Fig. 4, in the form of a rod disposed longitudinally in the channel and having its ends bent upwardly to embrace the upper flanges of the joist.
Patent GB-709481-A (GB)
Title: Improvements in and relating to light controlling glassware
IPC: F21V5/04
Filed: 1951-04-27
Abstract: 709,481. Light-controlling glassware. HOLOPHANE, Ltd., and HOLMES, J. G. March 21, 1952 [April 27, 1951], No. 9930/51. Class 75 (2) Light controlling glassware such as a car lamp cover glass is formed with a surface pattern of closely spaced convex lenticules of part circular outline. The lenticules may be spherical and of semi-circular or segmental outline as shown in Figs. 1 and 3, the resultant beam cross-section being shown in Figs, 1b and 3b. Fig. 2b shows the beam cross-section for lenticules of greater than semi-circular outline. Fig. 4 shows an arrangement of different sized spherical semi-circular outline lenticules designed to give a theoretical polar curve for the resultant beam as shown in Fig. 4f. The pattern of lenticules may comprise lenticules of different sizes and outline covering all or part of the glassware, the uncovered areas being left plain or rendered diffusing. The lenticules may be arranged on the same or opposite faces of the glassware and may be combined with' circular prisms.
Patent HK-101296-A (HK)
Title: Swivelling fastening device for spinal osteosynthesis rods
Inventor: VIGNAUD JEAN-LOUIS
IPC: A61F2/44
Filed: 1996-06-13
Abstract: The invention relates to a device for fixing spinal osteosynthesis rods on pedicle screws (1) of the type comprising a head (4) in the form of a tuning fork defining two branches (4a, 4b) receiving between them a rod (6) to be fixed, which rod is blocked in its seat (5) by a locking screw (7), characterised in that it additionally comprises, passed onto the rod (6) and inserted between the locking screw (7) and the bottom of the said seat (5), a slotted ring (9) whose opposite outer faces (10) directed towards the said locking screw (7) and the said bottom are convex and are received in complementary concave surfaces (11, 12) formed on the end of the locking screw (7) and the bottom of the seat (5) for receiving the rod (6), the said ring (9) permitting, before the screw (7) is locked, a certain angular clearance of the rod (6) relative to the axis of the screw (1). 
<??>Application to spinal osteosynthesis. 
<IMAGE>