baber/WOPTO huggingface dataset:
Patent GB-391987-A (GB)
Title: Improvements in the dyeing of cellulose esters and ethers
IPC: C09B31/06
Filed: 1932-05-25
Abstract: Cellulose esters or ethers, dyeing; azo dyes; azo dyes, forming on the material.--Fast green dyeings are obtained upon cellulose ester or ether materials by treatment with a water-insoluble p-aminoazo dyestuff, free from sulphonic or carboxylic acid groups of the general formula <FORM:0391987/IV/1> in which R is an alkoxy-substituted benzene nucleus, and either R1 is a benzene nucleus in which case the Y's are aliphatic, hydroaromatic or aliphatic-aromatic groups, or the Y's and the adjacent N atom form a closed ring, or R, is a tetrahydronaphthalene nucleus, in which case the Y's are hydrogen or aliphatic groups, followed by diazotization on the fibre and development with a coupling component of the type: <FORM:0391987/IV/2> in which X is alkyl or alkoxy.  The following examples are specified: (1) Acetate silk is treated in a bath, heated for \ba3/4\be hour to 70-75 DEG  C containing the dyestuff 4-nitro-3-methoxyaniline --> dimethylaniline (nitro group reduced) and hydrochloric acid, advantageously with an addition of sodium acetate after handling the goods in the bath for \ba1/4\be hour, rinsed, subjected to diazotization on the fibre, and developed for 1 hour at 75 DEG  C. in a weak acetic acid bath containing 6-methoxy-2 : 3-oxynaphthoic acid; alternatively the azo dye may be used in the form of a suspension or a soap bath emulsion or other dispersion. (2) . . (7) Acetate silk is similarly dyed with 4-nitro-2 : 5-dimethoxyaniline --> diethylaniline, tetrahydro - 1 - naphthylamine or tetrahydro-1-dimethylaminonaphthalene (nitro group reduced) --> (on the fibre) 6-methoxy-2 : 3-oxynaphthoic acid; 4-nitro-3-methoxyaniline --> dimethylaniline (nitro group reduced) --> (on the fibre) 6 - methyl - 2 : 3 - oxynaphthoic acid; 4-nitro-2 : 5 - dimethoxyaniline --> tetrahydro - 1 - naphthylamine (nitro group reduced) --> (on the fibre) 6-methyl-2 : 3-oxynaphthoic acid; 4 - nitro - 2 - methoxyaniline --> tetrahydro - 1 - naphthylamine (nitro group reduced) --> (on the fibre) 6-methoxy-2 : 3-oxynaphthoic acid.  Other specified azo dyes are those obtainable by reduction of the nitro group of 4-nitro-2-methoxyaniline --> dimethylaniline; 4-nitro-3 - methoxyaniline --> N - methylcyclohexyl - aniline or N-dimethyl (or diethyl)-m-toluidine; 4 - nitro - 2 : 5 - dimethoxyaniline --> di-(n-butyl) aniline, N-phenylmorpholine, N-dimethyl - m - chloraniline or dibenzylaniline.  Specification 330,591, [Class 2 (iii), Dyes &c.], is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of 2 : 3-oxyanthracenecarboxylic acid for development on the fibre.  This subject-matter does not appear in the Specification as accepted.  6 - Methyl - 2 : 3 - oxynaphthoic acid is obtained by treating the dry sodium salt of 6 - methyl - 2 - naphthol with carbon dioxide at 250 DEG  C. under 50 atmospheres pressure. N-Methylcyclohexylaniline is obtained by methylation of N-cyclohexylaniline.
Patent GB-119117-A (GB)
Title: Improvements in the Manufacture of Tungsten Metal Powder.
Inventor: BERTOYA OSCAR
IPC: C22B34/36
Filed: 1917-10-15
Abstract: 119,117. Bertoya, O. Oct. 15, 1917. Drawings to Specification. Dry processes of extracting tungsten.-Tungsten trioxide is reduced to metal by the action of hydrogen or gas containing over 50 per cent of hydrogen while passing through a series of externallv-heated inclined retorts down which the material slides.
Patent GB-776921-A (GB)
Title: Improvements in clamping devices for electric cables
IPC: F16L3/10
Filed: 1953-05-29
Abstract: 776,921. Strain-taking devices for flexible leads. YOUNG, S. G. Aug. 30, 1954 [May 29, 1953; Nov. 4, 1953], Nos. 15097/53 and 30530/53. Class 38 (1). In a cable clamp of the type comprising as plate 1, Fig. 2 (Prov.), drawn down on to the cable by screws 5, the surface of the plate is roughened by the provision of punched holes 2, which enhance the gripping effect, and the cable is bowed into a recess 7 in the base 6 of a connector. The roughening may be provided by teeth 9, Fig. 4 (Prov.), bent down from the edges of the plate. Teeth lying in the plane of the plate may be provided on one or both edges of the plate or on the edges of a slot in the plate (Figs. 8-12, not shown). Alternatively the teeth on the edges of the plate may be inclined at a small angle to the plate (Figs. 13- 15, not shown). According to further embodiments, the enhanced grip on the cable may be obtained by cementing a strip of rubber to one side of the plate or slipping a sleeve of rubber over the plate (Figs. 1-7, not shown).
Patent GB-948492-A (GB)
Title: Improvements in thermoset compositions based on carboxy polymers
IPC: C09D157/00
Filed: 1960-04-29
Abstract: 948,492. Resinous compositions. DEVOE & RAYNOLDS CO. Inc. April 29, 1960 [May 7, 1959], No. 15118/60. Headings C3B, C3P and C3R. Heat-convertible, solvent thinned, resinous compositions comprise 0À7 to 2 equivalents of a polyepoxide and one equivalent of a carboxy copolymer comprising 5 to 25% by weight of an alpha-beta unsaturated monocarboxylic acid containing up to 4 carbon atoms, 1 to 5% by weight of N-vinylpyrrolidone and one or more monoethylenically unsaturated monomers. The compositions may also contain an alkylated resinous condensate of an aldehyde with an amine, an amide or an aminotriazine. The aldehyde condensate comprises 5 to 40% of the total resin solids. Amino-compounds mentioned include urea, thiourea, melamine and benzoguanamine. The polyepoxide may be a glycidyl polyether of a polyhydric alcohol (e.g. trimethylolpropane) or of a polyhydric phenol (e.g. bisphenol A), bis-epoxycyclopentyloxy)-ethane, dicyclopenta-diene diepoxide or 3,4 -epoxy-6-methylcyclo-hexylmethyl 3,4 - epoxy - 6 - methylcyclohexane - carboxylate. The solvent may be xylene, xylene-butanol, commercial aromatic hydrocarbon solvents or methylisobutyl ketone and the compositions may also contain pigments (e.g. rutile) and waxes. Examples are given and compositions are used to coat metal. The unsaturated carboxylic acids are acrylic, methacrylic and crotonic acids and are copolymerised with N-vinyl-2-pyrrolidone or N-vinyl-3- pyrrolidone and one or more other unsaturated monomers which may be, for example, styrene, vinyltoluene, α-methyl-styrene, dialkyl-styrenes, halostyrenes, cyanostyrenes, vinylnaphthalene, alkyl esters of, or, nitriles derived from acrylic methacrylic or crotonic acids, alkyl ethers of vinyl and methallyl alcohols, and the vinyl, allyl, methallyl and crotonyl esters of saturated carboxylic acids. The polymerisation is performed in a solvent (e.g. ethers, esters, ketones and alcohols) in the presence of catalysts such as azobisisobutyronitrile, benzoyl peroxide, di-t-butyl peroxide and cumene hydroperoxide. Copolymers exemplified are styrene methyl methacrylate/butyl acrylate/methacrylic acid/N-vinyl-2-pyrrolidone, styrene/methyl methacrylate/butyl acrylate/vinylacetate/methacrylic acid/N-vinyl-2-pyrrolidone and styrene/ethyl acrylate/methacrylic acid/N- vinyl-2-pyrrolidone. In comparative examples the copolymers styrene/methyl methacrylate/ butylacrylate/methacrylic acid and styrene/methyl methacrylate/butylacrylate/methacrylic acid/vinyl pyridine are used. Specifications 675,169, 675,170, 679,536, 948,491 and 948,493 are referred to.
Patent GB-762232-A (GB)
Title: A new or improved sealing ring
Inventor: CLAYTON-WRIGHT GRAHAM HOWARD
IPC: F16J15/02
Filed: 1954-05-22
Abstract: 762,232. Piston and stuffing-box packing. CLAYTON-WRIGHT, Ltd., H. May 12, 1955 [May 22, 1954], No. 15138/54. Classes 122 (1) and 122 (5). A piston or stuffing-box sealing ring 13 is made of rubber or like resilient material and has a radial cross-section of generally square or rectangular form, the sides 18 of which are slightly concave near the central parts so as to provide a sealing portion 19 at each corner. The ring is preferably of square section with the sealing portions 19 part circular. As applied to a stuffing-box 11 for packing a shaft 10, the ring is located in a groove 14 formed between the end face 15 of the gland nut 12 and the faces 16, 17 of the box counterbore, the width of the groove being slightly greater than that of the ring and the depth of the groove being slightly less than that of the ring.
Patent GB-1109143-A (GB)
Title: Electrochemical interconversion of carbon dioxide and oxygen and an electrolytic cell therefor
IPC: C25B1/00
Filed: 1965-04-09
Abstract: Oxygen is extracted from carbon dioxide by electrolyzing a fused electrolyte containing at least one metal carbonate with lithium as the predominant cation on a molar basis and free from any substantial amount of sodium and feeding carbon dioxide to the electrolyte, oxygen being collected at the anode and carbon being deposited at the cathode.  Typically the electrolyte consists of lithium carbonate with either lithium fluoride or lithium chloride and an oxide of boron, e.g. B2O3, at a temperature of ca. 650 DEG C., the carbon deposit being an adherent graphite.  The carbon dioxide fed to the cell may be admixed with other gases as in respired air.  A cell in which a carbon deposit has been formed by the above process may be operated as a fuel cell by feeding oxygen to it and removing from the cell the carbon dioxide generated.  As shown the cell comprises a container (10) e.g. of Au, Au-Pd, Au-Ni, graphite or cathodically protected stainless steel closed by a cover (18) from which the electrodes (20), (22) and gas feed and exit tubes (14) and (16), (32) are suspended, the cell being divided into two compartments by a porous or perforated partition (30).  The anode (20) may be of Au optionally alloyed with Ni or Pd and the cathode (22) may be of Ni, Co, ductile iron, or stainless steel.
Patent GB-1300271-A (GB)
Title: A method for the control of a boiling water reactor and a boiling water reactor for performing said method
IPC: G21C1/08
Filed: 1970-03-31
Abstract: 1300271 Controlling reactors INSTITUTT FOR ATOMENERGI 31 March 1970 [1 April 1969(2)] 15202/70 Heading G6C In a boiling water reactor, reactivity control is effected by void fraction adjustment. The flow of water through the core, and hence the rate of formation of steam voids, is controlled by natural convection. The pressure within the reactor tank is maintained either by immersing the tank, which has an opening near the base, within a water filled well or by correcting it to a reservoir, partly filled with water. Radio-active decontammation of the cooling water is effected during circulation and fuel with a 2À8% enrichment in uranium 235 is employed. In one embodiment, the reactor core 6, is mounted within the tank, 2, in the well, 1. A steam/water mixture flows upwards through the cooling channels, 8, over the fuel elements, 7. Steam passes to the outlet, 12, while the water is returned by rotoral convection downwards through 5 to the core base. The operture, 15, facilitates the flow of water to and from the well, 1, in correspondence with the steam flow demands, thereby automatically controlling the void fraction and the reactor power.
Patent GB-151324-A (GB)
Title: Improvements in and relating to pressure regulating means for atomizers and the like
IPC: B05B15/20
Filed: 1919-06-17
Abstract: 151,324. Marks, E. C. R., (De Vilbiss Manufacturing Co.). June 17, 1919. Air-pressure sprayers.-In paint-spraying apparatus of the kind in which an air-tight receptacle contains paint which is forced by fluid pressure to an air brush, the air in the paint container is maintained at a different pressure from that at the air brush, and these pressures are regulable, and valves are arranged to relieve the pressure in the paint receptacle and to prevent the paint from running back through the tube supplying it with air. The container 1, Fig. 1, is provided with a head 3, Figs. 1 and 3, having a chamber 4 supplied with compressed air through the opening 22. Subsidiary chambers 5, 6 on either side of the chamber 4 communicate with it by means of passages 11 closed by spring- pressed valves 9. The stems of these valves bear against spring-pressed diaphragms 14, the pressure on which is varied by means of screws 19. A pressure gauge 37 communicates with the interior of the receptacle and another pressure gauge 40 communicates with the chamber 6. The chamber 6 communicates with a through passage 24 to which the air pipe 25 of the air brushes are connected. The chamber 5 communicates with a pipe 42, Figs. 3 and 4, through a passage 44 provided with a chamber 45 and having a by-pass 46 provided with a check valve 47. The lower end of the pipe 42 is bent and provided with perforations 43, Fig. 1, by which the liquid is agitated. The pipe 27 is connected to a passage 29 in the head, to which the paint-pipes 30 of the air-brushes are connected. A safety valve 33 and a relief valve communicate with the interior of the chamber 1 by a vertical passage in the head.
Patent GB-276110-A (GB)
Title: Improvements in and connected with steam generators
IPC: F22B21/20
Filed: 1926-06-17
Abstract: 276,110. Babcock & Wilcox, Ltd., and Davy, C. H. June 17, 1926. Pulverulent-fuel furnaces; casings and walls.- In a boiler having a furnace with a closed top and an outlet for ash at the bottom, the sides of the furnace are formed by vertical tubes I, which are encased in brickwork and which constitute with upper and lower headers K, L the extreme side sections of the boiler, the other sections G being steeply inclined and arranged to form the rear wall of the furnace. The headers of all the sections are connected to upper and lower drums N, 0, by nipples M. The sections G may be divided into front and rear banks which are separately connected to the upper drum, and the bank nearer the furnace may be supplied with water preheated in the furnace tubes E', O<1>. A feed-heater R may be placed in the path of the gases beyond the downcomer tubes P, and a superheater may be placed between the sections G and the downcomer tubes or between the banks of the sections.
Patent GB-1033714-A (GB)
Title: A coin album
IPC: B42F5/02
Filed: 1964-04-14
Abstract: 1033714 Coin albums F D FORMAN 25 March 1965 [14 April 1964] 15300/64 Headings A4G and G 19 A coin album comprises a loose-leaf binder and a number of leaves 2, Figs. 3, 4, (not shown) each leaf having a main part 10 of stiff material with rows of apertures 11 for receiving coins, and with slidable transparent strips 19, one on each face of the part 10 for each row of apertures for holding the coins in place. Pockets 17 forming slideways for the strips 19 are provided by attaching to each face of the part 10 a sheet of opaque flexible material 15, the attachment being along lines of adhesive 16 between rows of apertures. Identical apertures 18 to the apertures 11 are provided in the sheets 15. Coins may be inserted or removed by sliding the strips 19 out of the pockets 17. The sheets 15 may extend beyond the main sheet 10 at the inner edge to form a hinged part 13, Fig. 5, (not shown) between the sheet 10 and a stiff strip 12 which is apertured to engage filing posts.
Patent GB-1221262-A (GB)
Title: Improvements in and relating to well swabbing devices
Inventor: READ NORMAN WELDON
IPC: E21B37/10
Filed: 1969-03-24
Abstract: 1,221,262. Well swabs. DRESSER INDUSTRIES Inc. March 24, 1969 [April 10, 1968], No.15342/69. Heading F1A. A device for "swabbing" an oil-well shaft has a cylindrical member 22 mounted on a support mandrel (not shown) and bonded to an elastomeric body comprising elements 12, 14, 16 with oblique annular-grooves 18, 20 therebetween and an oblique annular-surface 32 at its upper end so that when the device is carried up the shaft by a line attached to the mandrel fluid-pressure deforms the elements to bring apices between frustoconical surfaces 24a, 26a, 24c, 26c, 24f, 26f into sealing contact with the shaft casing. When said apices become worn similar apices immediately below them effect the desired sealing, wear of the apices thus progressing downwards. Alternative embodiments, Figs. 5 to 10 (not shown), differ chiefly in regard to the number, sizes and dispositions of the frusto-conical surfaces. In some embodiments oblique annular-lips are added to ensure sealing when the fluid-pressure is small.
Patent GB-829013-A (GB)
Title: Improvements in governors for prime movers
Inventor: SIMMONS HAROLD CUTHBERT
IPC: G05D13/10
Filed: 1956-05-17
Abstract: 829,013. Fluid-pressure servomotor-control systems. DOWTY FUEL SYSTEMS Ltd. May 14, 1957 [May 17, 1956], No. 15440/56. Class 135. A governor for controlling the speed of a prime mover, e.g. an industrial gas turbine, by controlling the by-passing of fuel from a conduit 20 leading from a pump 1, preferably of gear type, to the burners comprises a bobweight 9 pivoted at 7 and integral with an arm 11 which carries a valve closure member 15 controlling a fixed servo vent 19. The arm 11 is loaded by an adjustable spring 13 and carries the closure member 15 in a bearing 16 to permit relative rotation of the arm and closure member when the latter is in engagement with its seat. The servo vent controls the pressure of air, fed from the compressor in the case of a gas turbine through a filter 45 and restriction 46, applied to a chamber 39 containing a flexible diaphragm 41 which operates the fuel by-pass valve 28 in such manner that when the speed exceeds a certain value the vent 19 is opened to allow the valve 28 to be moved by a spring 29 towards the position shown, in which it passes fuel from a passage 49 to a conduit 26 leading to the inlet of the pump 1. Fuel can be bypassed only after sufficient pressure has been developed in the conduit 20 to open a spring- loaded valve 47. Liquid fuel instead of air may be used as the servo fluid and more than one bob-weight may be employed.
Patent GB-402767-A (GB)
Title: Improvements in or relating to inductance coils
IPC: H01F5/02
Filed: 1932-05-31
Abstract: 402,767. Inductances. COSSOR, Ltd., A. C., Highbury Grove. BLACKSHAW, J. E., 24, Highbury New Park, and ROBINSON, F. C., 42, Victoria Road, Wood Green, all in London. May 31, 1932, No. 15443. [Class 37.] An inductance coil of the kind wound on detachable notched supports carried by a former has the supports constructed in the form of separate U or V-shape strips 3 which project through apertures in the wall of the former base and are provided at each end with notches 5 which abut on the former. The strips have winding notches 4 for locating the coil sections some of which may be wound on the cylindrical surface of the former. The winding notches 4 may be punched in the flat strip material which is afterwards bent to the desired shape.
Patent GB-616176-A (GB)
Title: Improvements in cinematographic apparatus
IPC: G03C7/22
Filed: 1946-05-22
Abstract: 616,176. Feeding films through processing apparatus. TECHNICOLOR MOTION PICTURE CORPORATION. May 22, 1946, No. 15489. Convention date, Sept. 6, 1945. [Class 98 (ii)]. Apparatus for feeding films through processing baths, e.g. in imbibition printing, comprising a travelling belt or other endless carrier having a row of register teeth in combination with means including a number of driven sprockets for feeding film to and from the moving carrier with the carrier teeth fitting in the film feed perforations, is characterized by means for driving the sprockets and the carrier in synchronism which includes a wheel geared to the carrier by teeth on one part meshing with openings in the other. The carrier and sprocket wheels may be directly connected, but preferably are connected so as to permit momentary variations in their relative speed. As shown, a blank film 6 and a dye-soaked matrix film 7 are led to an endless belt 1 on which they are seated by rollers 14, 22 in a water tank 13. The belt 1 is driven frictionally by a sheave 3 and positively by a gear wheel 41 which may be either a sprocket extending between marginal rows of belt register teeth and engaging a central row of perforations in the belt, or a socket wheel extending across the whole width of the belt and engaging the register teeth. In. both forms a roller 33 immediately below the gear-wheel ensures engagement between wheel and belt. The gear-wheel 41 and the film feeding sprockets, which in all the embodiments described are connected to the same driving source, and the sheave 3 may be driven by separate synchronous motors, speed difference resulting in small compensating slippages of the belt, or the same motor 37 may drive the sheave directly and the wheel 41 through a clutch 38 which is not initially engaged until the belt is moving at approximately its normal speed and then causes all the parts to move in synchronism, the wheel 41 counteracting the slipping tendency of the belt. Alternatively a clutch 40 and a speed step-up device 39 may be included to overdrive the sheave, the gear wheel 41 pulling backwardly to cause slipping of the belt on the sheave by a corresponding amount. Instead of separate synchronous motors, the sheave and gear-wheel 51 may be driven by separate motors of any kind, a differential being included in the drive to the gear-wheel and adapted to control the sheavedriving motor, or the sheave may be directly driven at constant speed by one motor and the differential in the gear-wheel drive employed to control its own motor. Modifications employing a single motor 57 and a variable speed mechanism 56 in conjunction with a differential 52 are also described. The motor may either drive the gear-wheel directly and the sheave through the variable speed mechanism or vice versa, the variable speed mechanism being controlled by the differential which in both cases is included in the drive to the gear-wheel. Specification 616,168 is referred to.
Patent GB-170043-A (GB)
Title: Improvements in or relating to storage battery plates
IPC: H01M4/04
Filed: 1920-06-08
Abstract: 170,043. Monnot, J. F. June 8, 1920. Electrodes. - A storagebattery electrode consists of a thin metal plate 1 having barbs, projections, or corrugations 5 to support the active material, and an outer metal shell 6 welded or otherwise fixed to the plate. The shell consists of two thin metal plates which are laid over the active material and then pressed into contact with the plate 1 along parallel lines 10 to form pockets for the active material. The barbs or projections on the plate 1 are pressed down beneath the lines 10 during this process, and along these lines the plate 1 and shell are riveted together or spotwelded as shown at 7. The barbs '&c. 5 project from both sides of the plate 1, or two plates with projections on one side of each may be used for the central support. The pockets formed in the shell 6 are perforated and a strengthening grid may be secured to the shell at the points 7. The electrode may be of lead, nickel, steel or nickelsteel alloy or other metal or alloy and may be used with an acid or alkaline electrolyte.
Patent GB-255608-A (GB)
Title: Metal clip for holding upholstery springs
IPC: A47C23/053
Filed: 1925-06-16
Abstract: 255,608. Fieldhouse, W. June 16, 1925. Spring surfaces.- Upholstery springs E are assembled on strip metal bearers F by inserting these bearers between the bottom turn of each spring and a diametrical strip A which is secured upon the spring.
Patent GB-937427-A (GB)
Title: Improvements in the construction of garden cloches
Inventor: THOMPSON FRANCIS BUTLER
IPC: A01G13/04
Filed: 1961-04-29
Abstract: 937,427. Cloches. DODWELL & CO. Ltd. May 2, 1962 [April 29, 1961], No. 15592/61. Class 20 (1). A cloche of umbrella type is extended by a pull cord 8 attached to a stem 6 and passing through a central bush 2 to which the frame supports 1 are pivotally secured, the toggle mechanism 3, 4, 5 being connected to the stem 6 which is adapted to be pushed back into the bush 2 to collapse the cloche. The polythene cover 7 is provided with fine ventilation holes preventing admission of water.