baber/WOPTO huggingface dataset:
Patent GB-1104971-A (GB)
Title: Process for the production of hydrogen or hydrogen-nitrogen mixtures from hydrocarbons
Inventor: KARWAT ERNST
IPC: F25J5/00
Filed: 1965-06-17
Abstract: H2 or H2/N2 mixture is produced by reacting a hydrocarbon material with water-vapour using external heating, and fractionating and/or scrubbing with liquid N2 the cracked gas to give a crude H2 or H2N2 fraction, and a fraction containing CO and CH4 which is used to heat the reaction, the reaction conditions and reactant ratios being such that the heating fraction produced is sufficient to supply all the external heat required.  Specified hydrocarbon materials are light petroleum and natural gas.  The cracked gas may be separated in cyclically operable regenerators to form a condensed heating fraction and a crude H2 fraction, the H2 may then be purified, e.g. by partial condensation and the impurities added to the evaporated heating fraction.  The product H2 or H2/N2 mixture may be used in NH3 synthesis, in which case, an O2-free "stack gas" (gaseous combustion products of carbonaceous material), containing N2 and CO2 may be added before, during or after the reaction. CO2 may be removed before fractionating by washing with H2O or by condensing it out.
Patent GB-1149141-A (GB)
Title: Process for preparing aromatic amines
Filed: 1967-06-02
Abstract: 1,149,141. Producing anilines. ATLAS CHEMICAL INDUSTRIES Inc. 2 June, 1967 [3 June, 1966], No. 25691/67. Heading C2C. A process for preparing aniline or a ring substituted lower alkyl aniline wherein the lower alkyl group has from 1 to 4 carbon atoms comprises contacting nitrocyclohexane or a lower alkyl nitrocyclohexane wherein the lower alkyl group has from 1 to 4 carbon atoms with a dehydrogenation catalyst at a temperature between 250‹ and 500‹ C. The preparations of aniline, p-methyl aniline and n-butyl aniline are described. Several catalysts are specified including platinum, palladium oxide and manganese dioxide on alumina, silver on silica and nickel.
Patent GB-641876-A (GB)
Title: Improvements in, or relating to, castor wheel mountings
IPC: B62D7/02
Filed: 1948-10-02
Abstract: 641,876. Single wheel mountings. DAVIS, T. R. Oct. 2,1948, No. 25705. [Class 108(ii)] In a castor wheel mounting for a trailer, the wheel is carried by a yoke turnably mounted in a base plate which is located under the draw bar when in use and can be moved by means of linkage to a position over the draw bar when out of use. As shown, the draw bar 4 has plates 1, 2 clamped thereto by bolts 3. The upper plate 1 has hinged thereto a link 6 to which is hinged at 7 a plate 8 carrying the pivot 9 for the wheel yoke 10, 11. The plate 8 has an apertured lug projecting at each side. Fig. 1 shows the wheel yoke lowered into operative position in which it is retained by a wing nut 14 on bolt 13 which passes through the plates 1 and 2 and one of the apertured lugs on plate 8. Fig. 4 shows the device approaching its inoperative position, where, it is secured by the bolt 13 which is passed through the plates 1 and 2 and the second apertured lug 15 on the plate 8. In the example shown, the lower plate 2 is U- shaped, and the plate 8 extends between the two limbs of the U so that it bears directly against the underside of the draw bar.
Patent GB-253065-A (GB)
Title: Improved insecticide
IPC: A01N25/14
Filed: 1925-10-14
Abstract: 253,065. Akt.-Ges. f³r Anilin-Fabrikation. June 2, 1925, [Convention date]. lnsecticides.-A scab dip for sheep or for other skin parasites in animals contains a protective colloid, soluble inorganic parasite poisons and insoluble inorganic parasite poisons in highly disperse or colloid form with the optional addition of a wetting agent and an agent for protecting fibres or the like. The insoluble dispersed poison need not exist as such in the preparation, and may be produced by substituting for the insoluble poison a derivative thereof which is decomposed by acids to liberate a colloidal insoluble poison either in an acid bath or on exposure to atmospheric carbonic acid on the animal. Thus, when a preparation containing sodium sulpharsenite is used, colloidal arsenic sulphides are formed gradually in the air in the presence of a protective colloid on the animal. If the bath be made acid, they separate wholly or partially in the bath. When the insoluble poison is present as such in the bath, a substance mav be added which causes dissolution of the poison on the addition of water. For example, sodium carbonate or other alkali may be added to a preparation wherein the insoluble poison is arsenic trisulphide which then dissolves when water is added and colloidal arsenic trisulphate is formed on the animal on exposure to the air. As a wetting agent, a sulphonic acid of a propyl- or butyl-naphthalene, or turkey red oil may be used, and there may be added for protecting the fibres a bisulphite compound of an aldehyde or ketone, or a sulphonic acid of high molecular weight. Deodorizing substances may also be added. An example of the insecticide comprises 25 parts by weight of sodium arsenite, 50 parts of a mixture containing about 30 per cent of colloidal sulphur and about 70 per cent of a protective colloid such as the substance obtainable from sulphite cellulose liquid by hydrolysis or chlorination, 10 parts of anhydrous sodium carbonate, 10 parts of powdered sulphur and 5 parts of arsenic trisulphide. The ingredients are ground together in a ball mill to give a preparation which is readily taken up by water. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a general claim for an insecticide for washing animals which contains soluble and insoluble parasitic poisons in highly disperse or colloid form, with the optional addition of a wetting agent, a protective colloid and an agent for protecting fibres or the like. This subject-matter does not appear in the Specification as accepted.
Patent GB-191124-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02M23/02
Filed: 1921-09-29
Abstract: 191,124. Williams, S. Sept. 29, 1921. Induction pipes, fittings for.- The charge is diluted with air admitted through chambers A, perforated at a and communicating with the induction pipe by means of a pipe a<1> controlled by a valve or cock. The device may be mounted, on the instrument board of a car.
Patent GB-786986-A (GB)
Title: Travelling wave tube
IPC: H01J23/065
Filed: 1955-09-09
Abstract: 786,986. Travelling-wave tubes. STANDARD TELEPHONES & CABLES, Ltd. Sept. 9, 1955 [Sept. 16, 1954], No. 25851/55. Class 39(1). In a high gain (i.e. greater than 25 db.) travelling wave tube comprising a helix and means providing attenuation for waves of the increasing mode reflected back along the helix from the output coupling, the said attenuation is distributed inhomogeneously along the length of the helix with a zone of maximum attenuation per unit length located beyond the point at which the gain is 50 per cent of the total gain of the tube and leaving at least 8 db. of gain after the said zone, the total attenuation in the said zone exceeding 60 per cent of the gain of the travelling wave tube. The part of the tube shown comprises a dielectric cylinder 1 joining together the members 3 and 4 of pairs of annular cup-shaped quarter wave choke members 2, 3 and 4, 5 which couple the travelling wave tube to the input and output waveguides of the external circuit. The helix 6, constructed in two portions of slightly different pitches, is held tightly between a surrounding set of dielectric rods 7 by clamps 8 and 9. A zone of high attenuation is provided at the junction between the two helix portions by a coating 10 of carbon on the rods 7 between the clamps 8 and 9 which hold the coating in contact with the helix in the face of external vibration. The coating is tapered off exponentially on either side of the zone 10. To provide a stability margin against unavoidable wave reflection at the input end of the helix, the distributed attenuation in this region should have a value of between one third and one half the gain per unit length of helix, and to keep the power losses to a minimum the output region is made as loss-free as possible. With the high attenuation region provided by the coating of carbon on the support rods, the helix may be made of moderate resistance material such as tungsten, which is gilded at the output end. Alternatively, the high attenuation region may be provided by using a high resistance helix material such as nickel-chrome, in which case the remaining regions are suitably plated. For tubes having an overall gain of 35 to 50 db. the zone of maximum attenuation should be located between the points of 50 per cent' and 60 per cent gain, while for overall gains of between 50 and 60 db. the zone should be in the 60 per cent to 70 per cent gain region. In each case the zone should extend over some 10 per cent to 20 per cent of the active length of the helix.
Patent GB-511103-A (GB)
Title: Manufacture of substantive polyazo dyestuffs
IPC: C09B31/22
Filed: 1938-09-05
Abstract: 511,103. Dyes. GEIGY AKT.-GES., J. R Sept. 5, 1938, No. 25909. Convention date Sept. 7, 1937. [Classes 2(iii) and 15(ii)] Substantive polyazo dyes are made by diazotizing disazo dyes of the formula A-N=N-M1-N=N-M2-NH2 and coupling with 2-aroylamino-6-naphthol-8- sulphonic acids, in which the aroyl residue may be substituted (A = the residue of a benzene or naphthalene sulphonic or carboxylic acid, M1 and M2=benzene and naphthalene residues containing the azo groups in p-position to one another or to the amido group). They produce fast blue to grey shades on cotton and viscose which may be developed on the fibre to fast green shades. In examples the following dyes are described (1) aniline-m-sulphonic acid# 1 - naphthylamine - 7 - sulphonic acid# amino - hydroquinone dimethylether# 2 - (4<1>- or 3<1> - amino) benzoylamino - 6 - naphthol - 8 - sulphonic acid# (on the fibre)- 1 - phenyl - 3 - methyl - 5 - pyrazolone : other middle components 'specified are aminohydroquinone diethyl or dibenzyl ether, cresidine, aminonaphthol ethers or alpha-naphthylamine, (2) 1-amino-4- acetylaminonaphthalene-7-sulphonic acid# 1- naphthylamine - 6 - sulphonic acid # 1 - naphthylamine - 7 - sulphonic acid # N - benzoyl - 2:6:8: - acid. Other initial components specified are aniline o - sulphonic acid, aniline-2:5-disulphonic acid, 4-chloraniline-3- sulphonic acid, 2-naphthylamine-4:8-disulphonic acid. Specifications 445,999 and 481,832 are referred to.
Patent GB-1509047-A (GB)
Title: Device for introducing a body into or removing a body from a sealed chamber
IPC: A23L3/04
Filed: 1975-06-10
Abstract: 1509047 Rotary pocket wheels TOYO SEIKAN KAISHA Ltd 10 June 1975 [18 June 1974 22 April 1975 (3)] 25956/77 Divided out of 1509046 Heading B8A A device for passing a body in or out of a sealed chamber and comprising a rotor 44 with a pocket 44a rotatable so as to connect the pocket 44a either to an inlet end 42c or to an outlet end 42d of the device, is characterized by injecting passages 47a, 47b for injecting a sealing fluid, e.g. water, into a gap 46 between the rotor 44 and its housing 42 at an angle of less than 90 degrees to the surface of the rotor 44. The embodiment shows four injecting passages 47a, 47b all directed towards the outlet end 42d and spaced so that at any time no more than one is directed into the pocket 44.
Patent GB-772369-A (GB)
Title: Improvements in or relating to control devices particularly for machine tools
IPC: G05G13/00
Filed: 1954-09-08
Abstract: 772,369. Machine-tool details. GAUB, H., [trading as JUNG SCHLEIFMASCHINEN H. GAUB]. Sept. 8, 1954 [March 19, 1954], No. 26063/54. Class 83 (3). [Also in Group XXIII] A control-device for machine-tools having one or more control-operating-members such as dogs &c. on a movable machine-part, and with means for selectively rendering individual control-movements effective or ineffective, is characterized in that an automatic-controloperating-mechanism is provided for operation of a number of connecting-pieces to different control-members to place the individual connecting-pieces either in an operative or an inoperative position, the control-mechanism incorporating a hand-operated member to be moved in opposite directions for selectively rendering individual control-movements effective or ineffective independently of the cycle of the automatic-control-operating-mechanism. The work is mounted in a head A on a carriage 2 reciprocated hydraulically on the machine-frame 1 relatively to a tool S, reversal being effected by dogs (not shown), on the carriage. On a rail 3 on the carriage are cams 4, 14, 42. The cam 4 co-operates with a follower 6 on a lever 5. A link 9 pivoted to the lever 5 has a projection 10 co-operating with one arm of a bell-crank 11, the other arm of which is connected by link 12 to a valve 13 of an hydraulic-system for effecting a desired operation. The cam 14 co-operates with a follower 16 on a lever 15. A link 19 pivoted to the lever 15 has a projection 20 co-operating with one arm of a bell-crank 21, the other arm of which is connected by link 22 to a valve 23 of an hydraulic-system for effecting another operation. The links 9, 19 are connected by links 24, 25 to the opposite ends of a lever 26. In one position of the lever 26, dogs 10, 20 do not register with bell-cranks 11, 21, so that actuation of the levers 5, 15 by cams 4, 14 does not actuate the valves 13, 23. In second and third positions of lever 26, dogs 10, 20 register selectively with bell-cranks 11, 21. The lever 26 has a handle H for manual operation, and is connected by link 27 to a control-segment 29, pivoted at 28 and having recesses 30 engaged by a spring-loaded detent 31. The segment also has ratchet-teeth 32 engageable by a spring- loaded pawl 33 pivoted on a bell-crank 34 pivoted at 28, the other arm of the bell-crank being connected by a link 37 to a lever 38 having a follower 39 co-operating with the member 42, which operates only when the carriage moves to the right. Instead of a reciprocating carriage, another movable machine-part may serve as control-element, e.g. a rotating disc or drum fitted with controloperating-members, a cam shaft, &c.
Patent GB-608941-A (GB)
Title: Process for refining the grain of magnesium base alloys
IPC: C22C1/02
Filed: 1944-12-29
Abstract: A process for the grain refinement of alloys containing at least 85 per cent of magnesium and at least 2 per cent of aluminium consists in immersing in the molten alloy a wax consisting of paraffin wax or ozokerite or other organic solid compound of carbon and either hydrogen or chlorine or both, which is waxy in appearance and feel, which melts or sublimes below 220 DEG C. and which is readily vaporized in molten magnesium.  The wax may be mixed with a solid diluent such as fluorspar. Specifications 359,425 and 608,942 are referred to.
Patent GB-860046-A (GB)
Title: Polymerisation process
Inventor: RAUM ALARIC LOUIS JEFFREY
IPC: C08F10/00
Filed: 1958-08-14
Abstract: Mono-olefins containing a terminal vinyl group and containing at least three carbon atoms, e.g. propylene, are polymerized in a liquid vehicle at an elevated and pressure in the presence of a three component catalyst comprising (1) aluminium, (2) a halide of copper, silver, divalent mercury, or lead, and (3) a titanium or vanadium di- or trichloride, bromide, or iodide.  The aluminium may be mixed with magnesium, e.g. in the form of an alloy, and subjected in the reactor to a mechanical shearing device to expose fresh surfaces.  Prior to incorporating the metal in the catalyst or reactor it may be treated in the absence of molecular oxygen to remove absorbed or chemically combined oxygen from the metal.  The second component of the catalyst may be cupric chloride, silver chloride, mercuric chloride or lead chloride. The titanium trichloride may be in the form of a black, brown or violet powder.  The brown powder may be formed by passing titanium, tetrachloride and hydrogen through a silent electric discharge or by thermal decomposition of alkyl - titanium halides. The liquid vehicle may be pentane, hexane, decane, or cyclohexane. All the ingredients of the catalyst may be mixed together in the polymerization reactor or all or two of the ingredients may be premixed and, if desired, heated together.  The preferred temperature is between 70 DEG  and 200 DEG  C. and the usual pressure between 150 and 1,000 lbs./sq. inch.  The polymer is isolated by conventional methods which preferably include a washing step with an alcohol such as ethanol or propanol and a treatment with an acid such as hydrochloric acid.ALSO:A catalyst for polymerizing alpha-olefines comprises (1) aluminium, (2) a halide of copper, silver, divalent mercury, or lead, and (3) a titanium or vanadium di- or trichloride, bromide or iodide.  The aluminium may be mixed with magnesium, e.g. as an alloy, and subjected in the reactor to a mechanical shearing device to expose fresh surfaces.  The metal may be treated to remove all combined or absorbed oxygen.  The second component of the catalyst may be cupric chloride, silver chloride, mercuric chloride, or lead chloride.  The titanium trichloride may be in the form of a black, brown, or violet powder.  All the ingredients of the catalyst may be mixed together or all or any two premixed and/or prereacted. In Example 1, propylene is polymerized in the presence of aluminium, violet titanium trichloride and anhydrous cupric chloride, whilst in Example 2 part of the aluminium is replaced by magnesium powder.
Patent GB-662742-A (GB)
Title: Improvements in or relating to inking pads
IPC: B41K1/54
Filed: 1948-10-07
Abstract: 662,742. Inking-pads. THOMAS, A. O. Oct. 7, 1949 [Oct. 7, 1948], No. 26107/48. Class 100 (ii). A rubber stamp inking pad comprises a mass of ink-absorbent material on a firm base, covered by nylon fabric (see Specification 552,190, [Group IV]). The base may be flat wood covered with a resilient layer, e.g. of sponge rubber or cork, or a cork slab having filter paper impressed into its top. The absorbent mass may comprise alternate layers of filter paper and felt, or a layer of lightly compressed fibres, e.g. asbestos; alternatively a powder or loose fibres may be used in which case the covering, instead of having edges stapled or glued to the underside of the base, may be in the form of a bag secured to its top. The box may be of plastic material, its lid at least being transparent to show the colour of the ink.
Patent GB-1277556-A (GB)
Title: Infinitely variable cone pully transmission
IPC: F16C19/50
Filed: 1971-04-19
Abstract: 1277556 Expanding pulling gear REIMERS GETRIEBE AG 19 April 1971 [4 April 1970] 26222/71 Heading F2D An expanding pulley comprises an axially fixed flange 2 and an axially movable flange 3 which are both mounted on a shaft 1 so as to be rotatable relative thereto, the axially movable flange 3 being connected to the shaft 1 by a pressure-applying cam and roller device 7 which is responsive to the shaft torque or to both torque and speed ratio, whilst the axially fixed flange 2 is supported on the shaft by a thrust bearing comprising a number of rolling elements 14 formed as oblate spheroids journalled at equi-angular spacings in a circumscribing support ring 18 by means of trunnions 17 projecting radially outwardly from one side of the rolling elements 14, the rolling elements 14 additionally having studs 19 projecting radially inwardly from their opposite side which centre the rollers 14 and ring 18 on an extended hub 20 of the axially fixed flange 2. As shown, three rollers 14 are equispaced in the support ring 18, whilst in Fig. 3 (not shown) only two diametrically opposed rollers 14 are located in the support ring 18 which is additionally provided with integral studs (21) for centring the thrust race unit (as before) on the flange hub 20. Additionally, the support ring 18 may be formed with a convex profile cross-section on its inner surface (Fig. 5, not shown) whereby the rolling members 14 may tilt into oblique positions (as indicated by the dotted lines) under certain conditions. The bearing races 16, 15 formed on the pulley flange 2 and shaft shoulder 13 may be flat as shown or formed convex or concave. Movement of the flange 3 for ratio change is effected by hydraulic pressure supplied to a cylinder 25. In an alternative arrangement (not shown) the oblate spheroid rolling members 14 may be replaced by cylindrical rolling members engaging thrust bearing race surfaces of convex cross-sectional profile.
Patent GB-1496116-A (GB)
Title: Method and an apparatus for burning hydrocarbon fuel
IPC: F23C6/04
Filed: 1976-06-24
Abstract: 1496116 Burning hydrocarbon fuel UNITED STIRLING (SWEDEN) AB & CO 24 June 1976 26230/76 Heading F4B Hydrocarbon fuel is divided into two parts, one part being burnt with a substantial excess of preheated air in a first combustion chamber, and the second part is burnt in a second combustion chamber with the cooled combustion gases from the first combustion chamber providing substantially the whole of the oxygen for the combustion in the second combustion chamber. The combustion air for the first chamber, which may be preheated by the gases from the second combustion chamber, is between 2 and 2À5 the stoichiometric amount required by the fuel, and the two parts of fuel are substantially equal. The first combustion chamber is cooled so that the gases fed to the second combustion chamber are at a temperature between 750‹ and 850‹ C. and the air is preheated to a temperature of between 650‹ and 750‹ C.
Patent GB-361993-A (GB)
Title: Improvements in or relating to oil fuel furnaces
IPC: F23D11/00
Filed: 1930-09-03
Abstract: 361,993. Liquid-fuel furnaces. JONES, J. W., 14, Findhorn Street, Poplar, London. Sept. 3, 1930, No. 26341. [Class 51 (i).] Regulable quantities of air in a preheated condition are supplied to spray burner 16 through a casing 2 secured by a ring 3 over an aperture in a plate 1 attached to the furnace front. The periphery of the casing is provided with air admission apertures 7 regulated by a rotatable sleeve 8 having corresponding apertures 9. Air entering through the apertures 7 is deflected towards the closed front end of the casing 2 by baffle-plates 15 and then passes into the furnace partly by way of perforations in tubular members 11, 12 and the open ends of such members and partly through the open end of the annular passage surrounding the tubular member 11. Helical air deflector blades 13, 14 are arranged within the casing. In passing over the baffle-plates and perforated tubular members 11, 12 the air becomes heated. Additional apertures 22 for the admission of air are provided in the plate 1 such apertures being provided with cover-plates. A rotatable screen plate 24 may be mounted on the front of the casing 2 to screen the operator from the glare of the furnace when the apertures 22 are open.
Patent GB-1190946-A (GB)
Title: A Device for Use in Fitting and/or Removing Circlips
Inventor: ARTHUR EVAN MEIRION
IPC: B25B27/20
Filed: 1967-06-08
Abstract: 1,190,946. Circlip pliers. E. M. ARTHUR. 5 Sept., 1968 [8 June, 1967], No. 26435/67. Heading B4W. Circlip pliers comprise two pivoted arms 10, 11 provided, at their ends remote from the pivot, with fingers 13, 14 including means, e.g. dimples, for locating a circlip, and having a threaded shaft 18 for causing relative pivotal movement of the arms. The arms, whose ends remote from the pivot are coplanar by virtue of crank portions 10c, 11c, may pass through elongate slots (23, 24) (Fig. 2, not shown) in a member 22 which retains the ends in coplanar relationship. The dimples for locating a circlip are provided on outer faces 13c, 14c of the fingers 13, 14.